Air suspension axle mounting and positioning device for semitrailer

Abstract

The invention provides a semitrailer air suspension axle mounting and positioning device, and relates to the technical field of semitrailer axles. Comprising a box body, a supporting plate is fixedly installed on the side face of the box body, a motor is fixedly installed on the top face of the supporting plate, a two-way threaded rod is installed at the output end of the motor, a limiting groove is formed in the top face of the box body, two sets of connecting rods are slidably connected into the limiting groove, and moving blocks are arranged at the bottom ends of the connecting rods; a top plate is arranged at the top end of the connecting rod, a circular groove is formed in the top surface of the top plate, a groove is formed in the inner wall of the circular groove, a spring is fixedly installed in the groove, a clamping block is fixedly installed at one end of the spring, a connecting block is rotationally connected into the circular groove, and a clamping groove is formed in the surface of the connecting block; and a fixing plate is fixedly mounted at the top end of the connecting block, the top plate can be rotated, so that the suspended axle is mounted and fixed at multiple angles, the adjusting mode is simple and rapid, and the use flexibility of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of semitrailer axles, and in particular to an air suspension axle mounting and positioning device for a semitrailer. Background Art

[0002] According to the different suspension structures, axles are divided into integral and disconnected types. When non-independent suspension is used, the middle part of the axle is a solid or hollow center beam, which is an integral axle. The disconnected axle is a movable joint structure and is used with an independent suspension. With the development of science and technology, air suspension is generally installed between the axle and the carriage of a semi-trailer.

[0003] Chinese patent publication number CN215240747U discloses a semi-trailer air suspension axle installation and positioning device, including a box body, a plurality of symmetrically arranged universal wheels are fixedly connected to the lower end surface of the box body, a fixing plate is arranged above the box body, a lifting mechanism for lifting the fixing plate is arranged on the box body and the fixing plate, a power mechanism for providing power to the lifting mechanism is arranged in the box body, two symmetrically arranged clamping blocks are fixedly connected to the upper end surface of the fixing plate, an axle body is clamped between the two clamping blocks, two symmetrically arranged suspension bodies are arranged on the upper end surface of the axle body, a semicircular groove is opened on the upper end surface of the clamping block, a clamping mechanism for clamping the axle body is arranged in the semicircular groove, and a linkage mechanism for linking the clamping mechanism is arranged in the clamping block;

[0004] In this existing design, although a clamping mechanism and a linkage mechanism can be set, the connecting rod below can be moved down by the weight of the axle, so that the toothed plate pushes the gear to drive the rotating rod to rotate, and under the action of the rotation of the cam, the push block on the moving rod pushes the connecting rods on both sides outward, thereby fixing the axle, thereby replacing manual labor with machinery to improve work efficiency, by setting a lifting mechanism and a power mechanism, the two moving rods are driven to move closer to the middle by the rotation of the double-headed threaded rod, and under the linkage between the connecting rod and the two semicircular blocks, the axle on the fixed plate is pushed up to contact the carriage, and then the axle and the carriage are fixedly connected to avoid the displacement of the axle installation position. The setting of the universal wheel makes the movement of the device more convenient, but most of the common axle installation and positioning devices can only adjust the installation height, which is not convenient for adjusting the installation angle, and easily affects the work efficiency;

[0005] Therefore, a semi-trailer air suspension axle mounting and positioning device is designed to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the technical problems raised in the above background technology.

[0007] The present invention adopts the following technical scheme: a semi-trailer air suspension axle installation and positioning device comprises a box body, a support plate is fixedly installed on the side of the box body, a motor is fixedly installed on the top surface of the support plate, a bidirectional threaded rod is installed on the output end of the motor, a limiting groove is provided on the top surface of the box body, two groups of connecting rods are slidably connected inside the limiting groove, a moving block is provided at the bottom end of the connecting rod, a top plate is provided at the top end of the connecting rod, a circular groove is provided on the top surface of the top plate, a groove is provided on the inner wall of the circular groove, a spring is fixedly installed inside the groove, a clamping block is fixedly installed on one end of the spring, a connecting block is rotatably connected inside the circular groove, a clamping groove is provided on the surface of the connecting block, and a fixing plate is fixedly installed on the top end of the connecting block.

[0008] As a preferred installation and positioning device for an air suspension axle of a semitrailer of the present invention, positioning blocks are fixedly installed on the top surface of the fixing plate, and there are two groups of positioning blocks, which are symmetrically distributed on the top surface of the fixing plate.

[0009] As a preferred installation and positioning device for an air suspension axle of a semitrailer of the present invention, ear seats are fixedly installed on the top surface of the moving block and the bottom surface of the top plate, the connecting rod is connected to the moving block and the top plate through the ear seats, and the connecting rod and the ear seats are rotatably connected.

[0010] As a preferred installation and positioning device for an air suspension axle of a semitrailer of the present invention, threads are provided inside the moving blocks at the bottom ends of the two groups of connecting rods, and the threads are respectively engaged with threads at both ends of the bidirectional threaded rod.

[0011] As a preferred installation and positioning device for an air suspension axle of a semitrailer of the present invention, a rotating seat is fixedly installed inside the box, and one end of the bidirectional threaded rod is rotatably connected to the rotating seat.

[0012] As a preferred installation and positioning device for an air suspension axle of a semitrailer of the present invention, the slots are distributed in a circular array on the surface of the connecting block, the grooves are distributed in a circular array on the inner wall of the circular groove, and the block and the slots match in shape and size.

[0013] As a preferred installation and positioning device for an air suspension axle of a semi-trailer of the present invention, a slot is provided on the surface of the box body, a round block is fixedly installed on the bottom surface of the box body, a sliding rod is inserted inside the round block, an insert block is inserted at the top end of the sliding rod, and a universal wheel is fixedly installed at the bottom end of the sliding rod.

[0014] As a preferred installation and positioning device for an air suspension axle of a semitrailer of the present invention, the slots are distributed at equal intervals on the surface of the box body, and the shapes and sizes of the insert blocks match those of the slots.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are:

[0016] 1. In the present invention, a clamping block, a clamping slot, a circular groove and a concave groove, and a connecting block are provided, and the top plate can be rotated, so that the suspension axle can be fixedly installed at multiple angles. The angle of the top plate can be adjusted by simply rotating the connecting block. The adjustment method is simple and quick, which improves the flexibility of the device.

[0017] 2. In the present invention, a slide bar, an insert block and a slot are provided. By adjusting the position between the insert block and the slot, the height of the slide bar can be adjusted, thereby changing the height of the universal wheel, making it convenient to use the device on uneven ground, and having practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a semi-trailer air suspension axle installation and positioning device is provided for the present invention;

[0019] Figure 2 A cross-sectional view of a semitrailer air suspension axle mounting and positioning device is provided for the present invention;

[0020] Figure 3 An exploded diagram of a semitrailer air suspension axle mounting and positioning device is proposed for the present invention;

[0021] Figure 4 The present invention proposes a semi-trailer air suspension axle installation positioning device Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 A side view of a semitrailer air suspension axle mounting and positioning device is provided for the present invention;

[0023] Figure 6 The present invention proposes a semi-trailer air suspension axle installation positioning device Figure 5 Enlarged view of point B in the middle.

[0024] Legend:

[0025] 1. Box body; 2. Support plate; 3. Motor; 4. Bidirectional threaded rod; 5. Limiting groove; 6. Connecting rod; 7. Top plate; 8. Round groove; 9. Groove; 10. Spring; 11. Block; 12. Connecting block; 13. Slot; 14. Fixed plate; 15. Positioning block; 16. Moving block; 17. Ear seat; 18. Rotating seat; 19. Slot; 20. Round block; 21. Sliding rod; 22. Insert block; 23. Universal wheel. DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0028] The standard parts used in this application can all be purchased from the market, and special-shaped parts can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the existing technology, and the components used for circuit connection are all conventional models in the existing technology.

[0029] At the same time, in order to clearly express the connection relationship and working principle between the components and highlight the key points, the drawings in the specification are organized and drawn in the form of simple diagrams. One simple diagram can correspond to a variety of materials and actual external structural shapes.

[0030] See also Figure 1-Figure 6 The present invention provides a technical solution: a semi-trailer air suspension axle installation and positioning device, comprising a box body 1, a slot 19 is provided on the surface of the box body 1, and the slots 19 are evenly spaced on the surface of the box body 1. The shapes and sizes of the insert blocks 22 and the slots 19 are matched. By adjusting the positions of the insert blocks 22 and the slots 19, the height of the universal wheel 23 can be adjusted, so that the device can adapt to uneven ground and improve the flexibility of use. A round block 20 is fixedly installed on the bottom surface of the box body 1, a sliding rod 21 is inserted inside the round block 20, an insert block 22 is inserted at the top of the sliding rod 21, and a universal wheel 23 is fixedly installed at the bottom end of the sliding rod 21. A rotating seat 18 is fixedly installed inside the box body 1, and one end of the bidirectional threaded rod 4 is connected to the rotating seat 18. There is a rotation connection between them, and the rotating seat 18 can limit the two-way threaded rod 4 to prevent it from moving. A support plate 2 is fixedly installed on the side of the box body 1, and the support plate 2 can provide support for the motor 3. The motor 3 is fixedly installed on the top surface of the support plate 2, and the output end of the motor 3 is installed with a two-way threaded rod 4. A limiting groove 5 is provided on the top surface of the box body 1, and two groups of connecting rods 6 are slidably connected inside the limiting groove 5. A moving block 16 is provided at the bottom end of the connecting rod 6. The moving blocks 16 at the bottom ends of the two groups of connecting rods 6 are both provided with threads inside, and the threads are respectively meshed with the threads at both ends of the two-way threaded rod 4, so that the moving blocks 16 are driven to move toward each other when the two-way threaded rod 4 rotates, thereby achieving the effect of lifting the top plate 7, and then facilitating the installation of the suspension axle at different heights;

[0031] A top plate 7 is provided at the top of the connecting rod 6, and an ear seat 17 is fixedly installed on the top surface of the moving block 16 and the bottom surface of the top plate 7. The connecting rod 6 is connected to the moving block 16 and the top plate 7 through the ear seat 17, and the connecting rod 6 and the ear seat 17 are rotatably connected. A circular groove 8 is provided on the top surface of the top plate 7, and a groove 9 is provided on the inner wall of the circular groove 8. A spring 10 is fixedly installed inside the groove 9, and a clamping block 11 is fixedly installed at one end of the spring 10. A connecting block 12 is rotatably connected inside the circular groove 8, and a clamping groove 13 is provided on the surface of the connecting block 12. The clamping groove 13 is The surface of the connecting block 12 is distributed in a circular array, and the grooves 9 are distributed in a circular array on the inner wall of the circular groove 8. The shapes and sizes of the clamping block 11 and the clamping groove 13 are matched. By clamping the clamping block 11 and the clamping groove 13, the connecting block 12 can be limited and fixed at this angle, so as to adjust the installation angle. A fixing plate 14 is fixedly installed on the top of the connecting block 12, and a positioning block 15 is fixedly installed on the top surface of the fixing plate 14. There are two groups of positioning blocks 15, and the two groups of positioning blocks 15 are symmetrically distributed on the top surface of the fixing plate 14.

[0032] Working principle:

[0033] When in use, place the suspension axle on the top surface of the limit block, then start the motor 3, the motor 3 drives the bidirectional threaded rod 4 to rotate, because the moving block 16 is provided with a thread meshing with the bidirectional threaded rod 4, the moving block 16 is displaced at this time, and drives the connecting rod 6 to rotate in the ear seat 17, and at the same time the ear seat 17 drives the top plate 7 to rise and fall, the top plate 7 drives the fixed plate 14 to move, and the fixed plate 14 drives the suspension axle to be installed accordingly, when it is necessary to adjust the installation angle, rotate the connecting block 12, the connecting block 12 drives the card slot 13 to rotate, at this time the card block 11 is squeezed by the surface of the connecting block 12, and The spring 10 is squeezed into the groove 9, and the spring 10 immediately expands and contracts, and the connecting block 12 is continuously rotated. At this time, the block 11 loses the external force squeezing, and due to the tension of the spring 10 itself, it moves into the slot 13 until the block 11 is engaged with other slots 13. At this time, the installation angle can be fixed. When the ground is uneven, manually pull the plug block 22 to remove the plug block 22 from the slot 19, and then slide the slide bar 21. The slide bar 21 drives the universal wheel 23 to move. After the universal wheel 23 is adjusted to a suitable height, the plug block 22 is reinserted into the corresponding slot 19 to fix the universal wheel 23.

Claims

1. A semitrailer air suspension axle installation and positioning device, comprising a box (1), characterized in that: A support plate (2) is fixedly mounted on the side of the box body (1), a motor (3) is fixedly mounted on the top surface of the support plate (2), a bidirectional threaded rod (4) is mounted on the output end of the motor (3), a limiting groove (5) is provided on the top surface of the box body (1), two groups of connecting rods (6) are slidably connected inside the limiting groove (5), a moving block (16) is provided at the bottom end of the connecting rod (6), a top plate (7) is provided at the top end of the connecting rod (6), a circular groove (8) is provided on the top surface of the top plate (7), a groove (9) is provided on the inner wall of the circular groove (8), a spring (10) is fixedly mounted inside the groove (9), a clamping block (11) is fixedly mounted on one end of the spring (10), a connecting block (12) is rotatably connected inside the circular groove (8), a clamping groove (13) is provided on the surface of the connecting block (12), and a fixing plate (14) is fixedly mounted on the top end of the connecting block (12).

2. The semitrailer air suspension axle installation and positioning device according to claim 1, characterized in that: A positioning block (15) is fixedly mounted on the top surface of the fixing plate (14), and there are two groups of the positioning blocks (15). The two groups of the positioning blocks (15) are symmetrically distributed on the top surface of the fixing plate (14).

3. The semitrailer air suspension axle installation and positioning device according to claim 2, characterized in that: The top surface of the moving block (16) and the bottom surface of the top plate (7) are both fixedly mounted with ear seats (17); the connecting rod (6) is connected to the moving block (16) and the top plate (7) via the ear seats (17); and the connecting rod (6) and the ear seats (17) are rotatably connected.

4. The semitrailer air suspension axle installation and positioning device according to claim 3, characterized in that: The moving blocks (16) at the bottom ends of the two groups of connecting rods (6) are provided with threads inside, and the threads are respectively meshed with threads at both ends of the bidirectional threaded rod (4).

5. The semitrailer air suspension axle installation and positioning device according to claim 4, characterized in that: A rotating seat (18) is fixedly installed inside the box body (1), and one end of the bidirectional threaded rod (4) is rotatably connected to the rotating seat (18).

6. The semitrailer air suspension axle installation and positioning device according to claim 5, characterized in that: The clamping grooves (13) are distributed in a circular array on the surface of the connecting block (12), the grooves (9) are distributed in a circular array on the inner wall of the circular groove (8), and the clamping block (11) and the clamping grooves (13) are matched in shape and size.

7. The semitrailer air suspension axle installation and positioning device according to claim 6, characterized in that: A slot (19) is provided on the surface of the box body (1), a round block (20) is fixedly installed on the bottom surface of the box body (1), a sliding rod (21) is inserted inside the round block (20), an inserting block (22) is inserted at the top end of the sliding rod (21), and a universal wheel (23) is fixedly installed at the bottom end of the sliding rod (21).

8. The semitrailer air suspension axle installation and positioning device according to claim 7, characterized in that: The slots (19) are distributed at equal intervals on the surface of the box body (1), and the shapes and sizes of the insert blocks (22) match those of the slots (19).

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