61results about How to "Effective working length unchanged" patented technology

The invention relates to a counter pressure type disc spring damper with the adjustable initial rigidity. The damper is characterized in that a counter pressure device is arranged inside a guide sleeve and comprises more than three pre-compression steel wire ropes, steel wire rope deflecting components with the same number as the pre-compression steel wire ropes, a steel wire rope self-locking and tensioning anchorage device and a floating counter pressure steel plate; the pre-compression steel wire ropes are distributed in a center hole of a disc spring set in the mode of a zigzag line, one ends of the pre-compression steel wire ropes are symmetrically fixed to the floating counter pressure steel plate around the axis of the guide sleeve, the other ends of the pre-compression steel wire ropes are deflected back after penetrating through the opposite steel wire rope deflecting components, then all the pre-compression steel wire ropes are combined to form a rope strand, and the rope strand penetrates through the floating counter pressure steel plate from the point where the axis of the guide sleeve passes on the floating counter pressure steel plate and is anchored to a second end cover by the steel wire rope self-locking and tensioning anchorage device; and when the pre-compression steel wire ropes are tensioned to reach the tension needed by the preset initial rigidity, the disc spring set is always clamped between a drive component and the floating counter pressure steel plate.

The invention discloses a three dimensional base isolation device capable of adjusting vertical early stage rigidity; the three dimensional base isolation device comprises a lamination rubber base isolation bearer and a vertical base isolation bearer connected in series up and down; the features are that a back pressure device is arranged in a guide sleeve of the vertical base isolation bearer; the back pressure device comprises two sets of precompressed steel ropes and two floating pressure plates; the two sets of precompressed steel ropes are respectively distributed in the central hole of a disc type spring assembly in a linear state, wherein one end of one set of the precompressed steel rope is respectively fixed on the floating pressure plate adjacent to a drive pressure plate, and the other end respectively penetrates the floating pressure plate adjacent to the pedestal and is anchored on the pedestal by a steel rope self-locking tensioning anchorage device; one end of the other set of precompressed steel rope is respectively fixed on the floating pressure plate adjacent to the pedestal, and the other end respectively penetrates the floating pressure plate adjacent to the drive pressure plate and is anchored on the drive pressure plate by the steel rope self-locking tensioning anchorage device; the two sets of precompressed steel ropes are tensioned, so the disc type spring assembly is always clamped between the two floating pressure plates.

The invention relates to a composite spring damper capable of regulating initial stiffness. The composite spring damper is characterized in that a back pressure device is further arranged in a guide sleeve, wherein the back pressure device comprises three or more pre-compaction steel wire ropes, steel wire rope turning elements which are as many as the pre-compaction steel wire ropes, steel wire rope self-locking tensioning anchorage devices which are as many as the pre-compaction steel wire ropes and a floating back pressure steel plate; the pre-compaction steel wire ropes are distributed in a ring-shaped space in a folding mode; one end of each pre-compaction steel wire rope is symmetrically fixedly arranged on the floating back pressure steel plate around the axis of the guide sleeve; the other end of each pre-compaction steel wire rope is turned back after passing through one opposite steel wire rope turning element, then, passes through the floating back pressure steel plate beside a fixed point, on the floating back pressure steel plate, of each pre-compaction steel wire rope, and is fixedly arranged on a second end cover through each steel wire rope self-locking tensioning anchorage device; and each pre-compaction steel wire rope is tensioned to tension needed for setting initial rigidity, so that the composite spring is clamped between a drive component and the floating back pressure steel plate all the time.

The invention relates to a three-dimensional shock insulation device capable of adjusting the vertical initial stiffness. The three-dimensional shock insulation device comprises a vertical shock insulation support and a laminated rubber shock insulation support, and is characterized in that a back pressure device is further arranged in a guide sleeve of the vertical shock insulation support and comprises three or more pre-pressing steel wire ropes, steel wire rope direction-changing elements and steel wire rope self-locking tightening anchors which are numerically equal to the pre-pressing steel wire ropes, and a floating back pressure steel plate; the pre-pressing steel wire ropes are in broken line state; one end of each pre-pressing steel wire rope is symmetrically fixed on the floating back pressure steel plate around the axial line of the guide sleeve, and the other end of each pre-pressing steel wire rope bypasses the corresponding steel wire rope direction-changing element in a penetrating manner and then returns back; all the pre-pressing steel wire ropes are connected in parallel together to form a rope bundle which penetrates through the floating back pressure steel plate and is anchored on a pedestal through the steel wire rope self-locking tightening anchors; and the pre-pressing steel wire ropes are tightened to tension required by preset initial stiffness, so that a cylindrical helical compression spring is always clamped between a driving pressure plate and the floating back pressure steel plate.

The invention relates to a three-dimensional vibration isolation support seat with adjustable vertical initial rigidity. The three-dimensional vibration isolation support seat comprises a vertical vibration isolation support seat and a laminated rubber vibration isolation support seat which are mutually connected in series. The three-dimensional vibration isolation support seat is characterized in that a back pressure device is also arranged in a guide sleeve of the vertical vibration isolation support seat; the back pressure device comprises more than three pre-pressing steel wire ropes, steel wire rope direction changing elements with the same number as the pre-pressing steel wire ropes and a floating back pressure steel plate; the pre-pressing steel wire ropes are in a fold-line state; one end of each pre-pressing steel wire rope is symmetrically fixed on the floating back pressure steel plate by using the axial line of the guide sleeve as the symmetry axis; the other end of each pre-pressing steel wire rope is folded back after bypassing one relative steel wire rope direction changing element, then passes through the floating back pressure steel plate beside a fixing point of the pre-pressing steel wire rope on the floating back pressure steel plate, and is anchored onto the base by a steel wire rope self locking tensioning anchor; and the pre-pressing steel wire ropes are tensioned to the tension required by the preset vertical initial rigidity, so that a cylindrical rubber elastic body is always clamped between a driving press plate and the floating back pressure steel plate.

The invention relates to a three-dimensional vibration isolation support seat capable of presetting the vertical initial rigidity. The three-dimensional vibration isolation support seat comprises a vertical vibration isolation support seat and a laminated rubber vibration isolation support seat which are mutually connected in series. The three-dimensional vibration isolation support seat is characterized in that a back pressure device is also arranged in a guide sleeve of the vertical vibration isolation support seat; the back pressure device comprises more than three pre-pressing steel wire ropes, steel wire rope direction changing elements with the same number as the pre-pressing steel wire ropes and a floating back pressure steel plate; the pre-pressing steel wire ropes are in a fold-line state; one end of each pre-pressing steel wire rope is symmetrically fixed on the floating back pressure steel plate by using the axial line of the guide sleeve as the symmetry axis; the other end of each pre-pressing steel wire rope is folded back after bypassing one relative steel wire rope direction changing element and is then fixed on the base after passing through the floating back pressure steel plate beside a fixing point of the pre-pressing steel wire rope on the floating back pressure steel plate; and the pre-pressing steel wire ropes are tensioned to the tension required by the preset vertical initial rigidity, so that a composite spring is always clamped between a driving press plate and the floating back pressure steel plate.

The invention discloses a three-dimensional shock isolation device with adjustable vertical early stiffness. The three-dimensional shock isolation device comprises a laminated rubber shock isolation bearing and a vertical shock isolation bearing which are sequentially connected with each other up and down in series, and is characterized in that a back pressure device is also arranged between two end plates of the vertical shock isolation bearing, and the back pressure device comprises two groups of pre-pressing steel cables and two floating platens, wherein the two floating platens are respectively sleeved on a guide rod between one end plate and a cylindrical helical compression spring; the two groups of pre-pressing steel cables are respectively distributed at the periphery of the cylindrical helical compression spring around the axis of the guide rod in a straight line state, one head of each pre-pressing steel cable of each group of pre-pressing steel cables is fixed on one floating platen, and the other head of each pre-pressing steel cable of each group of pre-pressing steel cables penetrates through the other floating platen and is anchored on the end plate adjacent to the floating platen by a steel cable self-locking tensioning anchor; the two groups of pre-pressing steel cables are tensioned, so that the cylindrical helical compression spring is clamped between the two floating platens all the time.

The invention discloses a composite spring damper with early rigidity capable of being adjusted. The composite spring damper is characterized in that a back pressure device is arranged in a guide sleeve, and the back pressure device comprises two sets of prepressing steel cables and two floating pressing plates, wherein the two sets of prepressing steel cables are symmetrically distributed in the annular space between a composite spring and the guide sleeve in a linear state about the axis of the guide sleeve, one ends of one set of prepressing steel cables are fixed to the floating pressing plate adjacent to a second end cover respectively, the other ends of the set of prepressing steel cables penetrate through the floating pressing plate adjacent to a driving component to be fixed to the driving component respectively, one ends of the other set of prepressing steel cables are fixed to the floating pressing plate adjacent to the driving component, the other ends of the set of prepressing steel cables penetrate through the floating pressing plate adjacent to the second end cover to be fixed to the second end cover respectively, the middle of each prepressing steel cable is provided with a turnbuckle for rigging in a series connection mode, the two sets of prepressing steel cables are tensioned, and therefore the composite spring is always clamped between the two floating pressing plates.

The invention discloses a three-dimensional seismic isolation device with vertical early rigidity capable of being preset. The device comprises a laminated rubber seismic isolation support and a vertical seismic isolation support which are vertically and sequentially connected in series. The device is characterized in that a back pressing device is arranged in a guide sleeve of the vertical seismic isolation support and comprises two groups of prepressing steel cables and two floating pressing plates, wherein each group comprises at least three prepressing steel cables, the two groups of prepressing steel cables are distributed in a central hole of a cylindrical helical compression spring separately in a linear mode, one ends of one group of prepressing steel cables are fixed to the floating pressing plate adjacent to a driving pressing plate separately, and the other ends of the group of prepressing steel cables penetrate through the floating pressing plate adjacent to a base to be fixed to the base separately; one ends of the other group of prepressing steel cables are fixed to the floating pressing plate adjacent to the base separately, and the other ends of the other group of prepressing steel cables penetrate through the floating pressing plate adjacent to the driving pressing plate to be fixed to the driving pressing plate separately; the two groups of prepressing steel cables are tensioned, so that the cylindrical helical compression spring is always clamped between the two floating pressing plates.

The invention relates to a composite spring damper capable of pre-setting initial rigidity. The composite spring damper is characterized in that a backward pressing device is further arranged in a guide sleeve; the backward pressing device comprises three or more than three pre-pressing steel wire ropes, steel wire rope direction changing elements as many as the pre-pressing steel wire ropes, and a floating backward pressing steel plate, wherein the pre-pressing steel wire ropes are distributed in an annular space between the guide sleeve and a composite spring in a folding line state; one end of each pre-pressing steel wire rope is symmetrically fixed on the floating backward pressing steel plate around the axis of the guide sleeve, and the other end of each pre-pressing steel wire rope goes around one corresponding steel wire rope direction changing element and then turns back and penetrates through the floating backward pressing steel plate via a fixed point of the pre-pressing steel wire rope on the floating backward pressing steel plate and then is fixed on a second end cover; and the pre-pressing steel wire ropes are tensioned to tension force needed by the preset initial rigidity, so that the composite spring is clamped between a driving member and the floating backward pressing steel plate all the time.

The invention relates to a back pressure type spiral spring damper with adjustable initial rigidity. The back pressure type spiral spring damper is characterized in that a back pressure device is further arranged in a guide sleeve, wherein the back pressure device comprises three or more pre-compaction steel wire ropes, steel wire rope turning elements which are as many as the pre-compaction steel wire ropes, a steel wire rope self-locking tensioning anchorage device and a floating back pressure steel plate; the pre-compaction steel wire ropes are distributed in a central hole of a cylindrical spiral compression spring in a folding mode; one end of each pre-compaction steel wire rope is symmetrically fixedly arranged on the floating back pressure steel plate around the axis of the guide sleeve; the other end of each pre-compaction steel wire rope is turned back after passing through one opposite steel wire rope turning element and is paralleled to be a rope bundle, then, passes through the floating back pressure steel plate from a fixed point, which allows the axis of the guide sleeve to pass through, on the floating back pressure steel plate, and is fixedly arranged on a second end cover the steel wire rope self-locking tensioning anchorage device; and each pre-compaction steel wire rope is tensioned to tension needed for setting initial rigidity, so that the composite spring is clamped between a drive component and the floating back pressure steel plate all the time.

The invention relates to a vertical initial rigidity adjustable three-dimensional shock insulation device. The three-dimensional shock insulation device comprises a vertical shock insulation support seat and laminated rubber shock insulation support seats, wherein the vertical shock insulation support seat and the laminated rubber shock insulation support seats are mutually connected in series. The three-dimensional shock insulation device is characterized in that a back pressure device is further arranged in a guide sleeve of the vertical shock insulation support seat, the back pressure device comprises more than three prepressing steel wire ropes, steel wire rope turning elements, steel wire rope self-locking tensioning anchors and a floating back pressure steel plate, wherein the number of the steel wire rope turning elements is equal to that of the prepressing steel wire ropes, the number of the steel wire rope self-locking tensioning anchors is equal to that of the prepressing steel wire ropes, the prepressing steel wire ropes are in the state of broken lines, one end of each prepressing steel wire rope is symmetrically fixed to the floating back pressure steel plate around the axis of the guide sleeve, the other end of each prepressing steel wire rope bypasses one opposite steel wire rope turning element, then turns back and then passes through the floating back pressure steel plate so as to be anchored to a base by one steel wire rope self-locking tensioning anchor, and the prepressing steel wire ropes are tensioned to tension required by preset initial rigidity, so that a cylindrical helical compression spring is clamped between a driving pressing plate and the floating back pressure steel plate all the time.

The invention discloses a three-dimensional seismic isolation bearing capable of adjusting vertical early rigidity. The three-dimensional seismic isolation bearing comprises a laminated rubber seismic isolation bearing and a vertical seismic isolation bearing which are sequentially connected with each other in series up and down and is characterized in that a back pressure device is further arranged in a guide sleeve of the vertical seismic isolation bearing, the back pressure device comprises two groups of prepressing steel cables and two floating platens, wherein the two groups of prepressing steel cables are distributed between a composite spring and the guide sleeve, one end of each prepressing steel cable of one group of prepressing steel cables is fixed on the floating platen adjacent to a driving platen, and the other end of each prepressing steel cable of one group of prepressing steel cables penetrates through the floating platen adjacent to a base and is anchored on the base by a steel cable self-locking and tensioning anchorage device; one end of each prepressing steel cable of the other group of prepressing steel cables is fixed on the floating platen adjacent to the base, and the other end of each prepressing steel cable of the other group of prepressing steel cables penetrates through the floating platen adjacent to the driving platen and is anchored on the driving platen by the steel cable self-locking and tensioning anchorage device; the two groups of prepressing steel cables are tensioned, so that the composite spring is clamped between the two floating platens all the time.

The invention relates to a disc spring shock absorber with adjustable initial rigidity. The disc spring shock absorber is characterized in that a back pressure device is arranged in a guide sleeve; the back pressure device comprises three or more prestressed steel wire ropes, steel wire rope turning elements equal to the prestressed steel wire ropes in number, steel wire rope self-locking tensioning anchors equal to the prestressed steel wire ropes in number and a floating back pressure steel plate; the prestressed steel wire ropes are distributed in a central hole of a disc spring set in a broken line mode; one end of each prestressed steel wire rope is symmetrically fixed to the floating back pressure steel plate around the axis of the guide sleeve, and the other end of the prestressed steel wire rope turns back after being wound across the opposite steel wire rope turning element, then penetrates through the floating back pressure steel plate from the position beside a fixing point, on the floating back pressure steel plate, of the prestressed steel wire rope, and is anchored to a second end cover through the corresponding steel wire rope self-locking tensioning anchor; and each prestressed steel wire rope is tensioned to the tension required for preset initial rigidity, and the disc spring set is made to be clamped between a driving component and the floating back pressure steel plate all along.

The invention relates to a three-dimensional shock isolation device with the vertical initial stiffness capable of being preset. The three-dimensional shock isolation device comprises a vertical shock isolation support and a laminated rubber shock isolation support which are connected in series. The three-dimensional shock isolation device is characterized in that a back pressure device is further arranged in a guide sleeve of the vertical shock isolation support; the back pressure device comprises three or more prepressing steel wire ropes, steel wire rope turning elements and a floating back pressure steel plate, and the number of the steel wire rope turning elements is equal to that of the prepressing steel wire ropes; the prepressing steel wire ropes are in broken line states; one ends of all the prepressing steel wire ropes are symmetrically fixed to the floating back pressure steel plate around the axis of the guide sleeve, and the other ends of all the prepressing steel wire ropes are retraced after winding the corresponding steel wire rope turning elements in a penetrating mode, then are paralleled to be rope bundles to penetrate through the floating back pressure steel plate and are fixed to a base; and the prepressing steel wire ropes are tensioned to the tensile force required by the preset vertical initial stiffness, so that a cylindrical spiral compression spring is always clamped between a driving pressing plate and the floating back pressure steel plate.

The invention relates to a rubber damper capable of adjusting the initial stiffness. The rubber damper is characterized in that a back pressure device is arranged in a guide sleeve; the back pressure device includes more than three pre-pressing steel wire ropes, steel wire rope turning members having the same number with the pre-pressing steel wire ropes, steel wire rope self-locking tensioning anchors having the same number with the pre-pressing steel wire ropes, and a floating back pressure steel plate; the pre-pressing steel wire ropes are distributed in a circular space in a broken line manner; one end of each pre-pressing steel wire rope is symmetrically fixed on the floating back pressure steel plate, around the axis of the guide sleeve; and the other end of each pre-pressing steel wire rope passes through a corresponding steel wire rope turning member, turns back, and then bypasses the floating back pressure steel plate from a fixing point, on the floating back pressure steel plate, of the pre-pressing steel wire ropes, and is anchored on a second end cover through the corresponding steel wire rope self-locking tensioning anchor. The pre-pressing steel wire ropes is tensioned to a tension force desired by the initial stiffness, and a rubber shock insulation pad is clamped between a driving member and the floating back pressure steel plate all the time.