A semi-trailer air suspension assembly clamping positioning device

Abstract

The utility model discloses a kind of assembly clamping positioning devices of air suspension of semitrailer, it is related to air suspension assembly relevant technical field, including progressive screw rod, the both ends of progressive screw rod are all sleeved with positioning cylinder, positioning cylinder is connected by two groups of half cylinder through bolt, the end face opposite between two groups of positioning cylinder is all provided with thread ring on progressive screw rod, the end face of two groups of positioning cylinder opposite and away is all provided with assembly L plate, the end face of assembly L plate away from positioning cylinder is all provided with clamping plate, by the cooperation between positioning cylinder and progressive screw rod, it is guaranteed that two groups of air suspension can be installed symmetrically, avoid the situation that positioning deviation appears, simultaneously, the cooperation between assembly L plate and clamping plate, it is guaranteed that the position of two groups of air suspension in semitrailer chassis can not be randomly relatively offset, the device solves current air suspension and cannot guarantee symmetric installation, prone to positioning deviation and the problem that air suspension is prone to sliding offset when assembling.

Description

Technical Field

[0001] This utility model belongs to the technical field of air suspension assembly, specifically relating to an assembly clamping and positioning device for air suspension of a semi-trailer. Background Technology

[0002] In today's pursuit of efficient logistics and improved transportation safety, the performance and reliability of semi-trailers, as the main equipment for road freight, are of paramount importance. Air suspension systems, with their superior shock absorption, adjustable ride height, protection of cargo and road surfaces, and enhanced driving stability, are gradually replacing traditional leaf spring suspensions and becoming the standard configuration for modern mid-to-high-end semi-trailers. However, compared to leaf springs, air suspension systems have a more complex structure, typically including multiple precision components such as airbags, brackets, thrust rods (V-bars / direct thrust rods), height valves, and stabilizer bars. These components require precise positioning, alignment, and assembly between the axle and the chassis. The core components of air suspension, such as airbags, brackets, and thrust rods, are heavy and large, making manual handling and positioning extremely laborious, posing safety hazards, and easily leading to worker fatigue. Therefore, external auxiliary devices are needed to install the air suspension on the semi-trailer.

[0003] When assembling air suspension on a semi-trailer, it is essential to ensure that the suspension components on both sides are installed symmetrically on the axle. Traditional methods rely on manual measurement and adjustment, which is inefficient and prone to positioning deviations. Furthermore, existing assembly clamping devices cannot stably secure the air suspension connectors, causing components to easily slip and shift during assembly, affecting installation accuracy. This issue has become a pressing problem for those in the field to solve. Utility Model Content

[0004] The purpose of this invention is to provide an assembly clamping and positioning device for air suspension of a semi-trailer, which, through the cooperation between the positioning cylinder and the advancing screw, ensures that the two sets of air suspensions can be installed symmetrically, avoiding positioning deviations. At the same time, the cooperation between the assembly L-plate and the clamping plate ensures that the positions of the two sets of air suspensions on the semi-trailer chassis will not shift relative to each other, thus solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an assembly clamping and positioning device for air suspension of a semi-trailer, including a progressive screw, both ends of which are fitted with positioning cylinders, the positioning cylinders being two sets of half cylinders connected by bolts, the opposite end faces of the two sets of positioning cylinders being provided with threaded rings spiraling on the progressive screw, the opposite and distant end faces of the two sets of positioning cylinders being provided with assembly L-plates, and the end faces of the assembly L-plates away from the positioning cylinders being provided with clamping plates.

[0006] This utility model further explains that both ends of the advancing screw are bolted with round blocks, and the two round blocks are slidably arranged in adjacent positioning cylinders. Since the round blocks are located inside the positioning cylinders, the two ends of the positioning cylinders limit the round blocks. Thus, when the positioning cylinder slides along the advancing screw, the round blocks also limit the positioning cylinder, so that the positioning cylinder will not come off the advancing screw.

[0007] This utility model further explains that the end face of the positioning cylinder near the threaded ring is provided with an annular T-shaped opening, and the annular T-shaped openings on the end faces of the half-cylinders that make up the positioning cylinder are arranged in a semi-circular shape.

[0008] This utility model further explains that the assembly L-plate is connected to the corresponding positioning cylinder by bolts. When it is necessary to separate the positioning cylinder and the assembly L-plate, the bolts on the assembly L-plate can be unscrewed directly, so that the assembly L-plate can be removed from the end face of the positioning cylinder and the assembly L-plate can be disassembled individually for replacement.

[0009] This utility model further explains that T-shaped rings are fixed on opposite end faces of the two sets of threaded rings. The T-shaped rings are respectively set in the corresponding annular T-holes. Since the T-shaped rings are in the annular T-holes, when the threaded rings drive the T-shaped rings to rotate, the T-shaped rings will rotate in the annular T-holes. Thus, the T-shaped rings will not drive the positioning cylinder to rotate along the progressive screw.

[0010] This utility model further explains that the end face of the assembly L plate that is connected to the clamping plate is provided with two sets of symmetrically arranged limiting holes, and the inner end face of each set of limiting holes is provided with a movable hole.

[0011] This utility model further explains that each end face of the clamping plate that is connected to the assembly L plate is fixed with a movable rod at the position corresponding to the limiting hole. Each end face of the movable rod that passes through the limiting hole is fixed with a limiting block that slides in the movable hole. Since the limiting block is in the movable hole, the limiting hole limits the limiting block, so that the limiting block will not come out in the movable hole, thereby ensuring the stable connection between the clamping plate and the assembly L plate.

[0012] This utility model further explains that each movable rod located inside the movable hole is fitted with a spring, one end of which is fixedly connected to the end face of the limiting block, and the other end of the spring abuts against the inner end face of the movable hole.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model,

[0014] (1) By setting up a positioning cylinder and a progressive screw, it is possible to ensure that the two sets of air suspensions can be installed symmetrically during assembly. The screw ring is controlled to rotate on the progressive screw. Thus, the screw ring directly controls the positioning cylinder to slide along the diameter of the progressive screw, thereby adjusting the distance between the two sets of assembly L plates and controlling the rotation distance of the two sets of screw rings. This ensures that the positioning cylinder drives the air suspension to move, ensuring that the two sets of air suspensions can be installed symmetrically and avoiding positioning deviation.

[0015] (2) By setting up the cooperation between the assembly L plate and the clamping plate, the air suspension connector is positioned between the assembly L plate and the clamping plate. Therefore, the cooperation between the assembly L plate and the clamping plate is used to position the air suspension and ensure that the two sets of air suspension will not shift relative to each other on the semi-trailer chassis. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 This is an exploded view of the progressive screw structure in this utility model;

[0020] Figure 4 This is an exploded view of the positioning cylinder and threaded ring in this utility model.

[0021] Figure 5 This is an exploded view of the structure of the assembly L-plate and clamping plate in this utility model.

[0022] In the diagram: 1. Progressive screw; 101. Round block; 2. Positioning cylinder; 201. Annular T-shaped opening; 3. Assembly L-plate; 301. Movable hole; 302. Limiting hole; 4. Clamping plate; 401. Movable rod; 402. Limiting block; 403. Spring; 5. Threaded ring; 501. T-shaped ring. Detailed Implementation

[0023] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-5 The present invention provides a technical solution: an assembly clamping and positioning device for air suspension of a semi-trailer, including a progressive screw 1, both ends of the progressive screw 1 are fitted with positioning cylinders 2, the positioning cylinders 2 are made of two sets of half cylinders connected by bolts, the opposite end faces between the two sets of positioning cylinders 2 are provided with threaded rings 5 ​​spiraled on the progressive screw 1, the opposite and far end faces of the two sets of positioning cylinders 2 are provided with assembly L plates 3, and the end faces of the assembly L plates 3 far away from the positioning cylinders 2 are provided with clamping plates 4.

[0025] With the above structure, when the air suspension needs to be installed on a semi-trailer, the air suspension connector is first positioned between the clamping plate 4 and the mounting L-plate 3. Then, the air suspension is mounted on the chassis of the semi-trailer. By controlling the threaded ring 5 to rotate on the advancing screw 1, the threaded ring directly controls the positioning cylinder 2 to slide along the diameter of the advancing screw 1. This allows the distance between the two mounting L-plates 3 to be adjusted. Consequently, the mounting L-plate 3 pushes the corresponding air suspension to slide along the chassis of the semi-trailer, thus controlling the air suspension to move to the corresponding installation position. Since the air suspension connector is positioned between the mounting L-plate 3 and the clamping plate 4, the cooperation between the mounting L-plate 3 and the clamping plate 4 is used to position the air suspension, ensuring that the two sets of air suspensions do not shift relative to each other on the semi-trailer chassis.

[0026] At the same time, when it is necessary to control the positioning cylinder 2 to be in a stable position under the semi-trailer chassis, the positioning cylinder 2 can be controlled to work with multiple lifting cylinders. The positioning cylinder 2 is slidably engaged with the piston end of the lifting cylinder. Therefore, when the positioning cylinder 2 is adjusted along the advancing screw 1, the positioning cylinder 2 slides on the end face of the piston end of the lifting cylinder.

[0027] When it is necessary to disassemble the advancing screw 1 and the positioning cylinder 2, the two sets of half cylinders on the positioning cylinder 2 can be separated by bolts, and the positioning cylinder 2 can be directly removed from the advancing screw 1. In this way, the positioning cylinder 2 and the advancing screw 1 can be disassembled separately or replaced individually.

[0028] Both ends of the advancing screw 1 are bolted with round blocks 101, and the two round blocks 101 are slidably set in the adjacent positioning cylinders 2. The assembly L plate 3 is bolted to the corresponding positioning cylinders 2. The end face of the positioning cylinder 2 near the threaded ring 5 is provided with an annular T-shaped opening 201. The annular T-shaped opening 201 of the half-cylinder end face of the positioning cylinder 2 is semi-circular. The opposite end faces of the two sets of threaded rings 5 ​​are fixed with T-shaped rings 501, and the T-shaped rings 501 are respectively set in the corresponding annular T-shaped opening 201.

[0029] With the above-described structure, when the threaded ring 5 is rotated, it directly drives the T-shaped ring 501 to rotate within the annular T-shaped opening 201. Since the T-shaped ring 501 is located within the annular T-shaped opening 201, the threaded ring 5 and the positioning cylinder 2 are in an assembly connection. Therefore, by disassembling the single positioning cylinder 2, the T-shaped ring 501 can be removed from inside the annular T-shaped opening 201. Simultaneously, when removing the threaded ring 5 from the advancing screw 1, the bolts on the round block 101 and the advancing screw 1 are unscrewed, thus separating the round block 101 and the advancing screw 1. Furthermore, by controlling the progressive rotation of the threaded ring 5 on the advancing screw 1, the threaded ring 5 can be screwed off the end face of the advancing screw 1, allowing for the single replacement of the threaded ring 5.

[0030] Two sets of symmetrically arranged limiting holes 302 are provided on the end face of the assembly L plate 3 that is connected to the clamping plate 4. Each set of limiting holes 302 has a movable hole 301 on its inner end face. A movable rod 401 is fixed at the position of the clamping plate 4 that is connected to the assembly L plate 3 corresponding to the limiting hole 302. A limiting block 402 that slides in the movable hole 301 is fixed on the end face of the movable rod 401 that passes through the limiting hole 302. A spring 403 is sleeved on the movable rod 401 inside the movable hole 301, with one end fixedly connected to the end face of the limiting block 402, and the other end of the spring 403 abuts against the inner end face of the movable hole 301.

[0031] With the above structure in place, when it is necessary to adjust the distance between the mounting L-plate 3 and the clamping plate 4 according to the width of the air suspension connector, the clamping plate 4 can be directly controlled to move in the opposite direction away from the mounting L-plate 3. The clamping plate 4 will then drive the movable rod 401 to slide along the limiting hole 302, and the movable rod 401 will drive the limiting block 402 to slide in the movable hole 301. At the same time, the limiting block 402 will compress the spring 403. After the air suspension connector is set between the mounting L-plate 3 and the clamping plate 4, the clamping plate 4 can be released. The spring 403 will then push the limiting block 402 to reset inside the movable hole 301. Thus, the limiting block 402 will drive the clamping plate 4 to move towards the mounting L-plate 3 through the movable rod 401, and the clamping plate 4 and the mounting L-plate 3 will abut against the air suspension connector.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An assembly clamping and positioning device for air suspension of a semi-trailer, characterized in that: The device includes a progressive screw (1), both ends of which are fitted with positioning cylinders (2). The positioning cylinders (2) are made up of two sets of half cylinders connected by bolts. The opposite end faces of the two sets of positioning cylinders (2) are provided with threaded rings (5) spiraling on the progressive screw (1). The opposite end faces of the two sets of positioning cylinders (2) are provided with mounting L plates (3). The end faces of the mounting L plates (3) away from the positioning cylinders (2) are provided with clamping plates (4).

2. The assembly clamping and positioning device for a semi-trailer air suspension according to claim 1, characterized in that: Both ends of the advancing screw (1) are bolted with round blocks (101), and the two round blocks (101) are slidably arranged in adjacent positioning cylinders (2).

3. The assembly clamping and positioning device for a semi-trailer air suspension according to claim 2, characterized in that: The assembly L plate (3) is connected to the corresponding positioning cylinder (2) by bolts.

4. The assembly clamping and positioning device for a semi-trailer air suspension according to claim 1, characterized in that: The end face of the positioning cylinder (2) near the threaded ring (5) is provided with an annular T-shaped opening (201), and the annular T-shaped opening (201) of the half-cylinder end face of the positioning cylinder (2) is set in a semi-circular shape.

5. The assembly clamping and positioning device for a semi-trailer air suspension according to claim 4, characterized in that: Both sets of threaded rings (5) have T-shaped rings (501) fixed on opposite end faces, and the T-shaped rings (501) are respectively set in the corresponding annular T-shaped openings (201).

6. The assembly clamping and positioning device for a semi-trailer air suspension according to claim 1, characterized in that: The assembly L plate (3) has two sets of symmetrically arranged limiting holes (302) on the end face of the clamping plate (4) connected to it. Each set of limiting holes (302) has a movable hole (301) on the inner end face of the inner end face of the limiting hole (302).

7. The assembly clamping and positioning device for a semi-trailer air suspension according to claim 6, characterized in that: The clamping plate (4) is fixed with a movable rod (401) at the position corresponding to the limiting hole (302) on the end face of the assembly L plate (3). The end face of the movable rod (401) passing through the limiting hole (302) is fixed with a limiting block (402) that slides in the movable hole (301).

8. The assembly clamping and positioning device for a semi-trailer air suspension according to claim 7, characterized in that: Each movable rod (401) located inside the movable hole (301) is fitted with a spring (403) with one end fixedly connected to the end face of the limiting block (402), and the other end of the spring (403) abuts against the inner end face of the movable hole (301).

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