67results about How to "Large bearing surface" patented technology

An arbor for quick change and standard hole cutters, wherein each hole cutter includes a central aperture and at least one drive pin aperture. The arbor comprises an arbor body including an end portion engageable within the central aperture, a drive shank opposite the end portion for engaging a power tool, and an aperture for receiving a pilot bit. The arbor further comprises a drive pin plate and/or collar having at least one drive pin receivable in a corresponding drive pin aperture of the hole saw for drivingly engaging the hole saw. The arbor, in at least one embodiment, further comprises a pilot bit mechanism for engaging and releasing a quick change or standard pilot bit.

An arbor for quick change and standard hole cutters, wherein each hole cutter includes a central aperture and at least one drive pin aperture. The arbor comprises an arbor body including an end portion engageable within the central aperture, a drive shank opposite the end portion for engaging a power tool, and an aperture for receiving a pilot bit. The arbor further comprises a drive pin plate and/or collar having at least one drive pin receivable in a corresponding drive pin aperture of the hole saw for drivingly engaging the hole saw. The arbor, in at least one embodiment, further comprises a pilot bit mechanism for engaging and releasing a quick change or standard pilot bit.

The invention discloses a bearing corner bracket, which comprises a square corner bracket grid platform, wherein shell-type corner bracket piers are respectively arranged at four corners on the bottom part of the square corner bracket grid platform; shell-type corner bracket piers are tapered; a corner bracket bead is arranged on any one of the corners on the upper part of the square corner bracket grid platform; and the minimal distance from the inner wall of the shell-type corner bracket pier adjacent to the corner bracket bead to the inner side of the corner bracket bead is no smaller than the minimal distance from the outer wall of the shell-type corner bracket pier to the outer side of the square corner bracket grid platform. A bearing seat frame comprises a corner bracket base and a bearing corner bracket. A combined bearing corner bracket comprises four bearing corner brackets arranged two by two, and the corner bracket beads on the four bearing corner brackets are positioned on the periphery of a bearing base formed by combining four bearing corner brackets. A combined bearing seat frame consists of a corner bracket base and four bearing corner brackets, wherein the four bearing corner brackets are arranged two by two; and the corner bracket beads on the four bearing corner brackets are positioned on the periphery of the bearing seat formed by combining the four bearing corner brackets.

The invention discloses an oblique-post type rail-mounted gallows frame. The oblique-post type rail-mounted gallows frame comprises two bases arranged in parallel and supporting posts arranged on the bases. A hanging beam is horizontally arranged above the supporting posts. The oblique-post type rail-mounted gallows frame is characterized in that the supporting posts are hollow, the two sides of each supporting post are each provided with a first groove inwards, and each supporting post is arranged in a vertically through mide; two corresponding side faces in each supporting post are each vertically provided with a sliding groove, each sliding groove and the corresponding first groove are located in two adjacent sides, and square pipes capable of moving along with the sliding grooves are connected to the sliding grooves; the upper side faces of every two first grooves are each horizontally provided with a plurality of limiting holes located at equal intervals, the two sides of each square pipe are each provided with a limiting groove, a limiting rod is arranged in one limiting hole in the upper side face of each first groove, and the square pipes are welded to the hanging beam; the two supporting posts are obliquely arranged on the bases, the lower portion of each base extends to form a pair of fixing parts, a directional wheel is arranged between every two fixing parts, and a matched rail is arranged under each directional wheel. The oblique-post type rail-mounted gallows frame has the advantages of being simple in structure, long in service life, capable of being used for transporting large articles conveniently and efficiently and the like.

An embossing cylinder for receiving a sleeve-shaped embossing mold has a hollow cylindrical body having two separating edges oriented in longitudinal direction of the body, such that a lateral surface broken by a gap is formed. The embossing cylinder is provided with a clamping system for expanding the hollow cylindrical body. The clamping system has two rotatable rings respectively supported on the axial end side of the body. The rings are connected by a carrier present in the gap. The spring elements are employed at the carrier and at the first separating edge. The spring force of the spring elements mainly act in the circumferential direction of the body. The advantage of the embossing cylinder of the invention is that a sleeve-shaped embossing mold can be mounted easily and rapidly, and the length difference can be compensated in the condition that different materials are applied to the sleeve-shaped embossing mold and the body, wherein the compensation is realized by different coefficients of thermal expansion. The invention also relates to an embossing system for processing belt-shaped or page-shaped elements, which comprises an embossing cylinder, a clamping shaft, a sleeve-shaped embossing mold, and a pressing roller pair.

The invention discloses a saddle for placing coiled steel. The saddle is provided with a saddle body, wherein the saddle body comprises two transverse pads (1) and two longitudinal pads (2), the two transverse pads (1) are crossed with the two longitudinal pads (2) in a # shape arrangement, screw rods (3) are arranged in the middle of the two transverse pads (1), the screw rods (3) divide the twotransverse pads (1) respectively into two parts, a part of each transverse pad (1) is fixed; each screw rod (3) passes through a corresponding sliding rail (7) arranged at the other part of the corresponding transverse pad (1) to form a transmission pair with the sliding rail (7), the screw rods (3) push the other parts of the transverse pads (1) respectively to move, and lifters (4) are arrangedat the bottoms of the transverse pads (1).

The invention discloses a high-temperature-resisting cyclone barrel. A barrel body comprises an upper-portion straight barrel portion and a lower-portion conical barrel portion, the peripheral wall of the barrel body is provided with a stepped face which serves as a supporting face and is borne on a bearing plate of a cyclone separator. The stepped face is formed by a structure extending from the end face of the top of the barrel body downward. The bearing plate of the cyclone separator is not located at the bottom of the cyclone barrel body, but is lifted to the peripheral wall of the middle of the barrel body and comprises a peripheral wall of the straight barrel portion or the conical barrel portion, the local portion of the periphery of the barrel body or the whole stepped face is directly in contact with the bearing plate to bear the weight of the whole cyclone barrel, positive pressure is even and stable, damage is not easily caused, and installation is convenient and quick. After the bearing plate is lifted, the using amount of heat preservation concrete can be greatly decreased, and the weight of the whole cyclone separator can be decreased by at least more than 5%. In addition, the cracked and leaked barrel body can be conveniently replaced, and the service life of the cyclone separator is remarkably prolonged.

The invention discloses a tower type rail-mounted portal hanging frame. The tower type rail-mounted portal hanging frame comprises two bases which are arranged in parallel and supporting columns which are arranged on the bases. A hanging beam is horizontally arranged on the supporting columns. First grooves are formed inwards in the two sides of each supporting column respectively. The supporting columns are arranged in a vertically through mode. Two corresponding side faces of the interior of each supporting column are each vertically provided with a sliding groove. Each sliding groove and the corresponding first groove are located in two adjacent sides. Square pipes which can move along with the sliding grooves are connected to the sliding grooves. A plurality of limiting holes are horizontally formed in the upper side faces of the two first grooves of each supporting column at equal intervals. Limiting grooves are formed in the two sides of each square pipe respectively. A limiting rod is arranged in one limiting hole of each first groove. The square pipes are welded to the hanging beam. The two supporting columns each comprise a reinforcing part located in the middle and connecting parts located on the upper side and the lower side of the reinforcing part. The sliding grooves and the square pipes are arranged in the connecting parts on the upper portions. Each reinforcing part comprises a plurality of tower-shaped connecting blocks which are vertically connected. A pair of fixing pieces extends out from the lower portion of each base. A directional wheel is arranged between the fixing pieces extending out from the lower portion of each base. A rail matched with the directional wheels is arranged below the directional wheels.

The invention belongs to the technical field of mechanical accessory production, and particularly relates to a production clamping device for mechanical accessories. The production clamping device comprises a bottom plate, bases are symmetrically and fixedly arranged on the bottom face of the bottom plate, a first air cylinder is installed in the middle of the bottom face of the bottom plate, an output shaft of the first air cylinder penetrates through the bottom plate and extends to the top of the bottom plate, connecting rods are symmetrically installed on the outer side wall of a telescopicshaft of the first air cylinder, two abutting plates clamp a mechanical accessory, each abutting plate has good deformation force due to the elastic effect generated by multiple compression springs inside the corresponding containing cavity so that the abutting plates can change along with the outline of the accessory, and the abutting plates can be attached to the accessory easily; meanwhile, the friction force between the abutting plates and the accessory is increased through connecting plates and multiple grooves, the stability and firmness are enhanced, and the accessory is not prone to slide and falling; and under the action of first springs and second springs, the abutting plates have certain rebound resilience, so that clamping is prevented from being too tight, damage to the accessory is reduced, and protection is enhanced.

The invention discloses a batter post type portal hanging frame. The batter type portal hanging frame comprises two bases which are arranged in parallel and supporting columns which are arranged on the bases. A hanging beam is horizontally arranged on the supporting columns. The batter post type portal hanging frame is characterized in that the supporting columns are hollow, first grooves are formed inwards in the two sides of each supporting column respectively, and the supporting columns are arranged in a vertically through mode; two corresponding side faces of the interior of each supporting column are each vertically provided with a sliding groove, each sliding groove and the corresponding first groove are located in two adjacent sides, and square pipes which can move along with the sliding grooves are connected to the sliding grooves; a plurality of limiting holes are horizontally formed in the upper side faces of the two first grooves of each supporting column at equal intervals, limiting grooves are formed in the two sides of each square pipe respectively, and a limiting rod is arranged in one limiting hole of each first groove; the square pipes are welded to the hanging beam, and the two supporting columns are obliquely arranged on the bases. The batter post type portal hanging frame has the advantages of being simple in structure, long in service life and the like.