35results about How to "Good contact fit" patented technology

The invention discloses a rotary base arranged at the escalator end. The rotary base comprises a base body. The base body comprises a connecting part, a rotating groove and a fixed supporting part. The rotating groove is formed in the front end of the connecting part. The fixed supporting part is divided into a left supporting wing and a right supporting wing. The left supporting wing and the right supporting wing are integrally formed with the front end of the connecting part. Both the left supporting wing and the right supporting wing are symmetrically arranged in the rotating groove left and right, and the gap between the left supporting wing and the right supporting wing form a rotary cavity. A rotary hand wheel is movably connected to the inside of the rotary cavity. The rotary base is high in load bearing capacity, good in rigidity, low in cost, high in safety, capable of improving strength and good in adaptability. Moreover, by the adoption of the manufacturing method, production cycle can be shortened, and the painting effect and efficiency are improved.

The invention discloses a secondary tool setting method for 3+2 axis machine tool processing, which comprises the following steps: Step 1: initial tool setting of the workpiece, obtaining the initial coordinates of the machining origin of the workpiece and the apex coordinates of the reference gauge block; Step 2 : After oscillating the tool, obtain the second tool machining coordinates of the tool tip; Step 3: Move the movable parts of the machine tool so that the tool tip is in contact with the three outer surfaces adjacent to one top corner of the reference gauge block, and obtain the tool tip’s coordinates Actual coordinates; Step 4: Compare the actual coordinates of the tool nose with the machining coordinates of the second tool in Step 2 to obtain the tool nose coordinate compensation value, and input the coordinate compensation value of the second tool machining coordinates in the machine tool to complete the secondary alignment of the machine tool Knife. By adopting the above steps, it has the function of performing secondary tool setting after the tool on the tool head rotates and swings around the A-axis or the C-axis, and reduces the error of the tool on the tool head.

The invention discloses a gear tooth electric brush plating experiment platform which comprises a worktable, a gear fixing device, a brush plating pen machine frame and a plating solution conveyor, wherein the gear fixing device is arranged on the worktable and used for driving the gear arranged on the gear fixing device to move; the brush plating pen machine frame comprises a base and a supporting frame, the base is moveably arranged on the worktable, the supporting frame is moveably arranged on the base, the brush plating pen is corresponding to the gear teeth and arranged on the supporting frame, and the position of the brush plating pen can be adjusted in the X axis, Y axis or Z axis according to the shape of the gear teeth; and in the brush plating process, a power mechanism drives the brush plating pen to reciprocate along the tooth socket of the gear. The electric brush plating experiment platform can regulate the direction of the brush plating pen in a multivariant way, and can implement brush plating on different types of gears. The electric brush plating experiment can implement automatic brush plating on the gear teeth, thereby enhancing the brush plating efficiency and implementing uniform brush plating. The electric brush plating experiment can perform brush plating on spur gears, helical gears and bevel gears, and has the advantages of favorable brush plating effect and high work efficiency.

The invention discloses a prepuce plastic cutting and suturing device. The annular knife of the suturing device is arranged inside the nail pushing part and interlocks with each other. The nail pushing part, a nail magazine and a nail plate are arranged in sequence. Multiple nail storage holes are set on the top, the nail storage holes are arranged obliquely, and nail grooves are set on the nail plate. When in use, the glans and foreskin are positioned on the glans cover. Nail groove; a spacer is arranged in the staple bin to cooperate with the staples. When the staples are nailed on the foreskin, the staples are placed on one side of the spacer, and the side of the spacer where the staples are located is stably positioned, and the other side of the spacer is One side can be flipped with the erection of the penis to reduce the pressure between the staples and the skin tissue. The asymmetric gasket makes the nail frame part of the staple closer to the incision. When the penis is erect, the unilateral gasket lever is set away from the incision. Under the prying and pulling action of force, the staples are easier to cut and come out from the edge of the incision, achieving the effect of fast nail removal.

The invention relates to an adjustment and calibration mechanism of a thermal overload relay. The adjustment and calibration mechanism comprises a tripping lever mounted in a housing, wherein the tripping lever can be coupled to the contact disengagement and engagement mechanism and main bimetal of the relay, wherein the main bimetal can drive the tripping lever to trigger the contact disengagement and engagement mechanism to trip; the adjustment and calibration mechanism further comprises an adjustment driving device mounted on the housing, a lever pivotally mounted on the housing and a temperature compensation bimetal pivotally mounted on the housing; the tripping lever is pivotally mounted on the temperature compensation bimetal; the adjustment driving device is connected with one end of the lever so as to make the lever rotate; the lever is matched with the temperature compensation bimetal; and the lever can be made to rotate through the adjustment driving device so as to drive the temperature compensation bimetal to rotate, so that the position of the tripping lever arranged on the temperature compensation bimetal can be changed, and therefore, the bending amount of the bimetal of the main circuit of the thermal overload relay can be transferred to the contact disengagement and engagement mechanism of the relay, so that the thermal overload relay can act more accurately and finely.

The invention provides a test piece for testing the uniaxial tensile property of fiber reinforced concrete and a test method thereof. The test piece is bone-shaped, and comprises clamping sections attwo ends, a middle test section and a force transmitting section, wherein the clamping sections are in a streamline form. The test method comprises test piece forming, demoulding, tensile test preparation and experimental data recording, wherein the test piece is poured in a molding cavity defined by two side plates, two end part clamping molds and a bottom forming template, during demoulding, thetest piece is taken down together with the clamping molds, and the clamping molds are connected with the testing equipment. According to the testing method provided by the invention, the clamping molds and the test piece integrally formed, the test piece and a clamping fixture are good in contact embedding degree, a stress concentration phenomenon is not easy to occur, force transmission is uniform, and the test piece can be directly installed on test equipment to be quickly and effectively tested; the test piece is bone-shaped, the sections thereof are in smooth transition, uniform stress and force transmission are achieved, fracture at a position outside the test section is reduced, and the test success rate is high.

The invention relates to a double-wheel single-hinging profiling ground wheel assembly and belongs to agricultural machinery. A connecting plat is hinged on a beam frame, a power output shaft is fixedly arranged on a driven chain wheel and is inserted in the connecting plate in a matching manner, two ends of a bidirectional hydraulic oil cylinder are respectively hinged on the beam frame and the connecting plate, a ground wheel bracket is hinged on the lower side part of the connecting plate, central shafts are fixedly arranged on a driving chain wheel and an overrunning clutch and are inserted into the connecting plate and the ground wheel bracket in a matching manner, a first driven chain wheel and a second driven chain wheel are fixedly arranged on the exterior of the overrunning clutch, a first driving ground wheel and a second driving ground wheel are arranged on two side parts of the ground wheel bracket, a first driving tower chain wheel and a second driving tower chain wheel are respectively fixedly arranged on a first driving ground assembly and a second driving ground assembly, a main driving chain is sleeved on the driven chain wheel and a driving chain, a first drivingchain and a second driving chain are respectively sleeved on the first driving tower chain wheel and the first driven chain wheel, and a second driving tower chain wheel and the second driven chain wheel. The double-wheel single-hinging profiling ground wheel assembly disclosed by the invention has the advantages of simple, novel and reasonable structure, enough driving power for operation, good profiling performance and reliability for using.

The invention discloses a lift capable of walking freely. The lift capable of walking freely comprises a lift car frame arranged around a lift car and a first walking assembly arranged on the upper side of the lift car. The first walking assembly is connected with the lift car frame and the lift car. The first walking assembly drives the lift car to move out of a lift shaft along a H-bar, and walking wheels are driven by a drive mechanism to walk. When the lift car moves to moving rails, the walking wheels make contact with the moving rails and walk on the moving rails, in the state, the firstwalking assembly and the walking wheels simultaneously act, so that the lift car can be moved out of the lift shaft, and then the lift car can walk to a needed position along fixed rails. In this way, the lift capable of walking freely facilitates goods carrying and reduces labor cost.

The invention discloses a turbine intra-wheel hole grinding device, and belongs to the technical field of mechanical tools. The device comprises a main shaft, at least two lists of holes are formed in the main shaft in the radial direction, the two lists of holes are evenly distributed along the circumference of the main shaft, each list comprises at least two holes, bolts are located through nuts after penetrating through the holes, one end of each bolt is provided with threads, the other end of each bolt is provided with a clamping head, grinding material supporting rods provided with clamping notches are arranged in parallel with the main shaft, the number of the supporting rods is at least two, the clamping heads of the bolts are connected into the clamping notches of the supporting rods, springs are arranged on the bolts in a sleeving mode and arranged between the main shaft and the supporting rods, the outer surfaces of the supporting rods are arc, the arc surfaces are not continuous in the circumferential direction, grooves are formed between the arc surfaces in the length directions of the supporting rods, and grinding materials are arranged on all the arc surfaces. The device can improve the grinding precision and improve the working efficiency.

A horizontal support beam is provided with a vertical connection bracket, constructed to attach the horizontal beam to a vertical column of a storage rack system. The vertical connection bracket includes a plurality of protrusions positioned to eliminate some of the gaps that can exist between the bracket and column. The vertical connection bracket can be an L shaped angle bracket. An inside surface of the first arm can include a plurality of protrusions, which can be formed by pressing dimples into the first arm, to help ensure a tight, contacting fit between the inside surface of the first arm and the vertical column.