CN219026515U

CN219026515U - Axle head clamping and fixing mechanism of trailer axle

Info

Publication number: CN219026515U
Application number: CN202223434572.XU
Authority: CN
Inventors: 吴志强; 王元忠; 唐兴彬; 王师勤; 聂林强; 相志鹏
Original assignee: Guangdong Fuwa Engineering Manufacturing Co Ltd
Current assignee: Guangdong Fuwa Engineering Manufacturing Co Ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-05-16
Anticipated expiration: 2032-12-22

Abstract

The shaft end clamping and fixing mechanism of the trailer shaft comprises a mounting seat, a rotating shaft which is connected to the mounting seat in a penetrating manner and is in pivot fit with the base, a clamping disc connected to one end of the rotating shaft, a pushing piece arranged on the rotating shaft and a driving piece, wherein the driving piece is used for driving the pushing piece to move between a first position close to the clamping disc and a second position far away from the clamping disc along the extending direction of the rotating shaft, a plurality of clamping blocks capable of moving along the radial direction of the clamping disc and an elastic element are arranged on the clamping disc, and the elastic element is used for pushing the clamping blocks outwards along the radial direction of the clamping disc. According to the utility model, the pushing piece pushes the clamping blocks simultaneously, so that the clamping blocks can move synchronously as much as possible, the structure is simple, the central axis of the trailer shaft is accurately positioned, and the positioning precision is improved.

Description

Axle head clamping and fixing mechanism of trailer axle

Technical Field

The utility model relates to the field of trailer shaft machining and manufacturing, in particular to a shaft end clamping and fixing mechanism of a trailer shaft.

Background

The trailer axle is generally formed by processing the pipe through processes such as extrusion, square pushing, straightening and the like, and after the trailer axle is processed, parts such as a brake bottom plate and the like are welded on the trailer axle, so that the trailer axle is required to be positioned and clamped by a tool in the whole production and processing process of the trailer axle; generally, in the process of straightening and welding, the two ends of the trailer axle are usually clamped and fixed, the trailer axle is usually clamped by utilizing a plurality of clamping blocks at the outer periphery of a circular tube at the end part of the trailer axle, and meanwhile, the end surface of the trailer axle is abutted against by a limiting surface on the tool to axially limit the trailer axle.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the shaft end clamping and fixing mechanism of the trailer shaft, which has the advantages of simple structure and high positioning precision.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the shaft end clamping and fixing mechanism of the trailer shaft comprises a mounting seat, a rotating shaft which is connected to the mounting seat in a penetrating manner and is in pivot fit with the base, a clamping disc connected to one end of the rotating shaft, a pushing piece arranged on the rotating shaft and a driving piece, wherein the driving piece is used for driving the pushing piece to move between a first position close to the clamping disc and a second position far away from the clamping disc along the extending direction of the rotating shaft, a plurality of clamping blocks capable of moving along the radial direction of the clamping disc and an elastic element are arranged on the clamping disc, and the elastic element is used for pushing the clamping blocks outwards along the radial direction of the clamping disc.

The clamping disc comprises an end wall and a side wall encircling the periphery of the end wall, the end wall and the side wall enclose a groove for accommodating the end part of the trailer axle, and the bottom surface of the groove forms a limiting end surface which is in abutting fit with the end surface of the trailer axle; the side wall is provided with a plurality of gaps, and a plurality of clamping blocks are arranged in the gaps in a one-to-one correspondence manner.

The clamping blocks comprise an inner clamping block and an outer clamping block, the inner clamping block and the outer clamping block are fixedly connected together through bolts, the elastic element is an elastic piece which is annular and is embedded in the inner edge of the side wall, and the elastic piece passes through the space between the inner clamping block and the outer clamping block.

The inner surface of lateral wall is provided with annular mounting groove, and the shell fragment inlays in the mounting groove, and the part that spanes a plurality of breachs on the shell fragment forms a connecting portion respectively, and a plurality of clamp splice are connected on a plurality of connecting portions respectively.

The pushing piece is annular and is sleeved on the rotating shaft in a sliding manner, the inner edge surface of the pushing piece forms a pushing surface, and the outer side surface of the clamping block forms a pressed surface matched with the pushing surface.

The pushing surface is cone-shaped, the inner diameter of the pushing surface gradually decreases from one end close to the clamping disc to one end far away from the clamping disc, the pressure receiving surface is an inclined surface, and the inclined surface gradually inclines inwards from one end far away from the pushing piece to one end close to the pushing piece.

The driving piece is a driving cylinder, a sleeve ring which is sleeved on the rotating shaft in a sliding manner is fixed on the pushing piece, a clamping groove is formed in the outer surface of the sleeve ring, a poking piece is arranged on the mounting seat, one end of the poking piece is located below the rotating shaft and hinged to the mounting seat, the other end of the poking piece is located above the rotating shaft and hinged to a telescopic rod of the driving cylinder, a cylinder body of the driving cylinder is hinged to the mounting seat, and a poking end embedded in the clamping groove is arranged on the poking piece.

The stirring end is a roller pivoted on the stirring piece.

The movable seat is arranged on the base, the first driving cylinder is used for driving the movable seat to move relative to the base along the length direction of the base, and the second driving cylinder is used for driving the movable seat to move relative to the movable seat along the height direction of the base.

The base is provided with a first guide rail with the extension direction consistent with the length direction of the rotating shaft, and the movable seat is slidably arranged on the first guide rail; the movable seat is provided with a second guide rail extending along the height direction, and the mounting seat is slidably mounted on the second guide rail.

The utility model has the beneficial effects that:

according to the utility model, the pushing piece moves along the axial direction of the rotating shaft to push the plurality of clamping blocks on the clamping disc, so that the plurality of clamping blocks are simultaneously tightened or loosened along the radial direction of the clamping disc, the shaft end of the trailer shaft is clamped and fixed, and one pushing piece simultaneously pushes the plurality of clamping blocks, so that the plurality of clamping blocks can move synchronously as much as possible, the structure is simpler, the central axis of the trailer shaft is accurately positioned, and the positioning precision is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the installation of the present utility model;

FIG. 3 is a schematic view of the mounting of the clamping disk of FIG. 2;

fig. 4 is a schematic structural view of the toggle member in fig. 2.

Detailed Description

The utility model is further described below with reference to the drawings and detailed description:

as shown in fig. 1, 2, 3 and 4, the shaft end clamping and fixing mechanism of the trailer shaft can be used in the processes of straightening, welding and the like of the trailer shaft, and the trailer shaft can be clamped and fixed from the end part of the trailer shaft so as to facilitate the processing of the trailer shaft.

The clamping and fixing mechanism comprises a mounting seat 13, a rotating shaft 14, a clamping disc 15, a pushing piece 16 and a driving piece, wherein the rotating shaft 14 is connected in the mounting seat 13 in a penetrating way, the inner side end of the rotating shaft 14 extends out of the mounting seat 13 for a certain length, and the rotating shaft 14 can be pivoted with the mounting seat 13 through a bearing or pivoted with the mounting seat 13 in other mounting modes, and the rotating shaft 14 extends along the X direction in the drawing; the clamping disk 15 is fixedly connected to the inner side end of the rotating shaft 14, the pushing piece 16 is mounted on the rotating shaft 14 and can move relative to the rotating shaft 14 along the extending direction of the rotating shaft 14, namely, in the X direction, the pushing piece 16 can move relative to the clamping disk 15, and the driving piece is used for driving the pushing piece 16 to move along the extending direction of the rotating shaft 14 and is used for enabling the pushing piece 16 to move between a first position close to the clamping disk 15 and a second position far away from the clamping disk 15; the clamping disc 15 is provided with a plurality of clamping blocks which are circumferentially arrayed around the central axis of the clamping disc 15, each clamping block has the freedom of radial movement of the clamping disc 15, meanwhile, the clamping disc 15 is also provided with an elastic element which is used for pushing the clamping blocks outwards along the radial direction of the clamping disc 15, when the pushing piece 16 is positioned at the first position, the pushing piece 16 is propped against the outer sides of the clamping blocks, when the pushing piece 16 is positioned at the second position, the pushing piece 16 is separated from the clamping blocks, when the pushing piece 16 moves from the second position to the first position, the pushing piece 16 can press the clamping blocks towards the direction close to the central axis of the clamping disc 15, so that a clamping component formed by the clamping blocks can be tightened to clamp the end part of the axle, when the pushing piece 16 moves from the first position to the second position, the clamping blocks are gradually loosened, and the clamping blocks move outwards along the radial direction of the clamping disc 15 under the elastic stress of the elastic element so that the end part of the clamping blocks are loosened and reset.

The clamping disc 15 comprises an end wall 150 and a side wall 151, the side wall 151 surrounds the periphery of the end wall 150, a groove is formed by the end wall 150 and the side wall 151, the groove is used for accommodating the end part of the trailer axle, when the trailer axle is clamped, the end part of the trailer axle is firstly placed in the groove, and the bottom surface of the groove (namely one surface of the end wall 150) forms a limiting end surface in abutting fit with the end surface of the trailer axle; a plurality of notches 1511 are provided on the side wall 151, and a plurality of clamping blocks are installed in the plurality of notches 1511 in a one-to-one correspondence. The clamping block comprises an inner clamping block 153 and an outer clamping block 154, the inner clamping block 153 and the outer clamping block 154 are detachably fixed together through bolts, the elastic element is an annular elastic piece 155, the elastic piece 155 is embedded in a groove preset on the inner edge surface of the side wall 151, the elastic piece 155 penetrates through the inner clamping block 153 and the outer clamping block 154, when the clamping block is assembled, the elastic piece 155 is arranged on the inner edge surface of the side wall 151, then the inner clamping block 153 and the outer clamping block 154 are respectively arranged on the inner side and the outer side of a notch 1511, the elastic piece 155 is clamped by the inner clamping block 153 and the outer clamping block 154, finally the inner clamping block 153 and the outer clamping block 154 are fixed together through bolts, so that the clamping block is arranged on the elastic piece 155, the elastic piece 155 can limit the maximum displacement of the clamping block along the radial outward movement of the clamping disc 15, meanwhile, the elastic piece 155 deforms when the clamping block is pressed inwards, and after the external force applied to the clamping block is cancelled, the elastic piece 155 returns to reset the clamping block. Preferably, the pushing member 16 may be configured as a ring, and is slidably sleeved on the rotating shaft 14, an inner edge surface of the pushing member 16 forms a pushing surface 161, an outer side surface of the clamping block forms a pressed surface 1541 matched with the pushing surface 161, the pressed surface 1541 is disposed outside the outer clamping block 154, and when the pushing member 16 slides to the first position, the pushing member 16 is sleeved outside the clamping disc 15, and the pushing surface 161 presses the pressed surface 1541, so that the end portions of the trailer axle can be clamped by the plurality of clamping blocks. The pushing surface 161 is formed in a tapered shape, the inner diameter of which gradually decreases from the end near the holding disk 15 toward the end far from the holding disk 15, and the pressure receiving surface 1541 is a slope which gradually slopes inward from the end far from the pushing member 16 toward the end near the pushing member 16, so that the pushing surface 161 can press the pressure receiving surface 1541 when the pushing member 161 moves toward the holding disk 15 along the axis of the rotating shaft 14. Because the elastic piece is arranged to be the annular elastic piece 155, the elastic piece 155 can be arranged at the periphery of the clamping disc 15, a plurality of clamping blocks can be arranged on the elastic piece 155, the maximum displacement of the outward movement of the clamping blocks can be limited through the elastic piece 155, and meanwhile, the clamping blocks can be reset through the elastic stress of the elastic piece 155, so that one elastic element is not required to be respectively arranged for the clamping blocks, the problem that the movement of the clamping blocks cannot be synchronous is solved, the structure is simplified, and the precision is improved.

In the present utility model, more than two spring plates 155 may be installed on the clamping disk 15, where the more than two spring plates 155 are arranged at intervals along the X direction, and when assembling, the more than two spring plates 155 pass through the outer clamping block 154 and the inner clamping block 153 of the clamping block at the same time, so that the maximum displacement of each clamping block moving outwards is limited by the more than two spring plates 155, and at the same time, the more than two spring plates 155 provide greater elastic stress for resetting the clamping blocks, so that it can be ensured that the radial movements of the clamping blocks along the clamping disk 15 can be more synchronous. In order to prevent the elastic sheet 155 from loosening, an annular mounting groove 1512 is formed in the inner surface of the side wall 151 of the clamping disc 15, the elastic sheet 155 is embedded in the mounting groove 1512, so that the elastic sheet 155 is clamped on the inner surface of the side wall 151 of the clamping disc 15, the elastic sheet 155 can span across two sides of the notch 1511, parts of the elastic sheet 155, which span across the notches 1511, respectively form a connecting part, a plurality of clamping blocks are respectively connected to the connecting parts, specifically, the inner clamping block 153 and the outer clamping block 154 are respectively embedded in the inner side and the outer side of the notch 1511, and after the inner clamping block 153 and the outer clamping block 154 are fixed together by bolts, the clamping blocks are connected to the connecting parts of the elastic sheet 155.

The driving member is a driving cylinder 18, a collar 17 is fixed on the pushing member 16, the collar 17 is slidably sleeved on the rotating shaft 14, the collar can drive the pushing member 16 to move along the axial direction of the rotating shaft 14, a clamping groove 171 is formed in the outer surface of the collar 17, a stirring member 19 is arranged on the mounting seat 13, one end of the stirring member 19 is located below the rotating shaft 14 and hinged on the mounting seat 13, the other end of the stirring member 19 is located above the rotating shaft 14 and hinged on a telescopic rod of the driving cylinder 18, a cylinder body of the driving cylinder 18 is hinged on the mounting seat 13, a stirring end clamped in the clamping groove 171 is arranged on the stirring member 19, the upper portion of the stirring member 19 is driven to swing through the driving cylinder 18, and the stirring end on the stirring member 19 can drive the collar 17 to slide along the extending direction of the rotating shaft 14. The stirring piece 19 can be arranged in an inverted Y shape and is arranged above the rotating shaft 14 in a crossing way, the bottom of the stirring piece 19 is connected to the mounting seat 13 in a rotating way through a shaft, two sides of the stirring piece 19 are respectively provided with a stirring end, the clamping groove 171 is arranged around the lantern ring 17, and two stirring ends on the stirring piece 19 are respectively clamped in the clamping groove 171 and are respectively arranged at two sides of the lantern ring 17, so that the lantern ring 17 drives the pushing piece 16 to stably slide on the rotating shaft 14; in addition, in order to avoid jamming, the pulling end provided on the pulling member 19 may be a roller 191 pivotally connected to the pulling member 19.

In the preferred embodiment, the clamping assembly further comprises a base 11, a movable seat 12, a first driving cylinder 121 and a second driving cylinder 131, wherein the base 11 can be arranged on a straightening device or a welding tool of the trailer axle, the movable seat 12 is arranged on the base 11, the mounting seat 13 is arranged on the movable seat 12, the first driving cylinder 121 is used for driving the movable seat 12 to move relative to the base 11 along the X direction, namely, the position of the clamping disc 15 is adjusted by utilizing the first driving cylinder 121, so that the end part of the trailer axle can penetrate from an opening of a groove arranged on the clamping disc 15, and the end surface of the trailer axle can be propped against the limiting end surface of the groove; the second driving cylinder 131 is used for driving the mounting seat 13 to move relative to the movable seat 12 along the Z direction, and can properly adjust the height of the clamping disc 15, so that the opening of the groove on the clamping disc 15 is equal to the end of the trailer axle when the clamping disc 15 moves along the X direction.

A first guide rail 110 with an extension direction consistent with the length direction of the rotating shaft 14 is arranged on the base 11, namely, the extension direction of the first guide rail 110 is consistent with the X direction, the movable seat 12 is slidably arranged on the first guide rail 110, and is driven by a first driving cylinder 121, so that the movable seat 12 slides on the first guide rail 110; the movable seat 12 is provided with a second guide rail 120 extending along the height direction, that is, the extending direction of the second guide rail 120 is consistent with the Z direction, and the mounting seat 13 is slidably mounted on the second guide rail 120 and driven by the second driving cylinder 131, so that the mounting seat 13 slides on the second guide rail 120.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that modifications may be made to the technical solutions described in the foregoing embodiments or equivalents may be substituted for some of the technical features thereof, and these modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model in essence.

Claims

1. The shaft end clamping and fixing mechanism of the trailer shaft is characterized by comprising a mounting seat, a rotating shaft which is connected to the mounting seat in a penetrating manner and is in pivot fit with the base, a clamping disc connected to one end of the rotating shaft, a pushing piece arranged on the rotating shaft and a driving piece, wherein the driving piece is used for driving the pushing piece to move between a first position close to the clamping disc and a second position far away from the clamping disc along the extending direction of the rotating shaft, a plurality of clamping blocks capable of moving along the radial direction of the clamping disc and an elastic element are arranged on the clamping disc, and the elastic element is used for pushing the clamping blocks outwards along the radial direction of the clamping disc.

2. The axle end clamping and fixing mechanism of a trailer axle as set forth in claim 1, wherein the clamping disk comprises an end wall and a side wall surrounding the periphery of the end wall, the end wall and the side wall enclose a groove for accommodating the end part of the trailer axle, and the bottom surface of the groove forms a limiting end surface in abutting fit with the axle end surface of the trailer; the side wall is provided with a plurality of gaps, and a plurality of clamping blocks are arranged in the gaps in a one-to-one correspondence manner.

3. The axle end clamping and fixing mechanism of a trailer axle as claimed in claim 2, wherein the clamping blocks comprise an inner clamping block and an outer clamping block, the inner clamping block and the outer clamping block are fixedly connected together through bolts, the elastic element is a spring plate which is annular and is embedded in the inner edge of the side wall, and the spring plate passes through between the inner clamping block and the outer clamping block.

4. A shaft end clamping and fixing mechanism for a trailer axle as claimed in claim 3, wherein the inner surface of the side wall is provided with an annular mounting groove, the elastic sheet is embedded in the mounting groove, the parts of the elastic sheet crossing across the plurality of notches respectively form a connecting part, and the plurality of clamping blocks are respectively connected to the plurality of connecting parts.

5. The axle end clamping and fixing mechanism of a trailer axle as set forth in claim 1, wherein the pushing member is annular and is slidably sleeved on the rotating shaft, an inner edge surface of the pushing member forms a pushing surface, and an outer side surface of the clamping block forms a pressed surface matched with the pushing surface.

6. The axle end clamping and fixing mechanism of a trailer axle as set forth in claim 5, wherein the pushing surface is tapered, the inner diameter of the pushing surface gradually decreases from the end near the holding plate to the end far from the holding plate, and the pressing surface is a slope which gradually slopes inward from the end far from the pushing member to the end near the pushing member.

7. The axle end clamping and fixing mechanism of a trailer axle as set forth in claim 5, wherein the driving member is a driving cylinder, a collar slidably sleeved on the rotating shaft is fixed on the pushing member, a clamping groove is formed on the outer surface of the collar, a stirring member is arranged on the mounting seat, one end of the stirring member is positioned below the rotating shaft and hinged on the mounting seat, the other end of the stirring member is positioned above the rotating shaft and hinged on a telescopic rod of the driving cylinder, a cylinder body of the driving cylinder is hinged on the mounting seat, and a stirring end embedded in the clamping groove is arranged on the stirring member.

8. The axle end clamp fixture of a trailer axle of claim 7, wherein said toggle end is a roller pivotally connected to the toggle member.

9. The axle end clamp fixing mechanism of claim 1, further comprising a base mounted on the base, a movable seat mounted on the base, a first drive cylinder disposed on the movable seat for driving the movable seat to move relative to the base along a length direction of the base, and a second drive cylinder for driving the movable seat to move relative to the movable seat along a height direction of the base.

10. The axle end clamping and fixing mechanism of a trailer axle as set forth in claim 9, wherein a first guide rail with an extension direction consistent with the length direction of the rotating axle is provided on the base, and the movable seat is slidably mounted on the first guide rail; the movable seat is provided with a second guide rail extending along the height direction, and the mounting seat is slidably mounted on the second guide rail.