CN215705506U - Traction device for semitrailer - Google Patents

Traction device for semitrailer Download PDF

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Publication number
CN215705506U
CN215705506U CN202121344052.2U CN202121344052U CN215705506U CN 215705506 U CN215705506 U CN 215705506U CN 202121344052 U CN202121344052 U CN 202121344052U CN 215705506 U CN215705506 U CN 215705506U
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frame
semi
spring
springs
moving frame
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Chinese (zh)
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郑松军
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Liaoning Jintianma Primate Car Manufacturing Co ltd
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Liaoning Jintianma Primate Car Manufacturing Co ltd
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Abstract

本实用新型提供了一种半挂车用牵引装置,所属车用牵引装置技术领域,包括:第一安装板、第一安装架、第一移动架、第二移动架、连接杆、第一弹簧、承载梁、第二安装架、转轴、第二弹簧、承载架、滚轮架、滚轮和第三弹簧;增加了多处自由度,提高半挂车与牵引车连接的灵活性,避免当路面坑洼时,半挂车与牵引车连接处直接受到冲击,从而确保半挂车连接时有一定活动空间,从而避免连接处磨损严重或损坏的情况产生,避免半挂车脱节,确保牵引时的稳定性。第一移动架可小范围左右移动,避免牵引车变道时,连接处受到过大的弯曲应力,从而避免连接处疲劳损坏;通过使转轴与承载架之间有间隙,避免连接处受到过大的扭力,减少因损坏而断开的情况。

Figure 202121344052

The utility model provides a traction device for a semi-trailer, belonging to the technical field of traction devices for vehicles, comprising: a first mounting plate, a first mounting frame, a first moving frame, a second moving frame, a connecting rod, a first spring, Bearing beam, second mounting frame, rotating shaft, second spring, bearing frame, roller frame, roller and third spring; multiple degrees of freedom are added to improve the flexibility of the connection between the semi-trailer and the tractor, and avoid potholes on the road , The connection between the semi-trailer and the tractor is directly impacted, so as to ensure that there is a certain space for movement when the semi-trailer is connected, so as to avoid serious wear or damage to the connection, avoid the semi-trailer from being disconnected, and ensure the stability during towing. The first moving frame can move left and right in a small range to avoid excessive bending stress at the joint when the tractor changes lanes, thereby avoiding fatigue damage at the joint; by making a gap between the rotating shaft and the bearing frame, the joint can be prevented from being subjected to excessive bending stress. torque to reduce disconnection due to damage.

Figure 202121344052

Description

Traction device for semitrailer
Technical Field
The utility model belongs to the technical field of traction devices for vehicles, and particularly relates to a traction device for a semitrailer.
Background
At present, in the related art, the semitrailer mainly transports large-sized cargos which are large in size and not easy to disassemble, such as an excavator and the like. The axle of a semitrailer is placed behind the center of gravity of the vehicle and is a trailer equipped with a coupling device that transmits horizontal and vertical forces to a towing vehicle. The existing connection structures are mostly heavy transport vehicles which are connected to the towing vehicle by means of towing pins. However, the connection by the towing pin has poor stability, and the connection is usually subjected to large bending stress and torsional stress and is easy to damage, so that the connection needs to be frequently repaired. Therefore, the design of the traction device for the semitrailer enables the semitrailer to be stably connected with the tractor, avoids the semitrailer from being disconnected in the transportation process, and ensures the safety in transportation, which is particularly important.
SUMMERY OF THE UTILITY MODEL
The semi-trailer aims to solve the problems that the joint of the tractor and the semi-trailer in the prior art has no degree of freedom, is easy to damage in the long-term transportation process and the like; the utility model provides a traction device for a semitrailer, which improves the flexibility of connection between the semitrailer and a tractor by increasing multiple degrees of freedom, avoids the condition that the connection part is seriously abraded or damaged, avoids the disconnection of the semitrailer, and ensures the stability during traction. The specific technical scheme is as follows:
a hitch for a semitrailer for coupling the semitrailer to a tractor, said hitch comprising: the device comprises a first mounting plate, a first mounting frame, a first moving frame, a second moving frame, a connecting rod, a first spring, a bearing beam, a second mounting frame, a rotating shaft, a second spring, a bearing frame, a roller and a third spring; the first mounting plate is fixed on the tractor; the first mounting frame is connected with the first mounting plate; the first movable frame is embedded into the first mounting frame and is in sliding connection with the first mounting frame; the second movable frame is embedded into the first movable frame and is connected with the first movable frame in a sliding manner; the connecting rod is perpendicular to the second moving frame, and one end of the connecting rod is connected with the second moving frame; the first springs are perpendicular to the connecting rod, one ends of the two first springs are respectively connected with the top surface and the bottom surface of the second movable frame, and the other ends of the two first springs are simultaneously connected with the first movable frame; one end of the bearing beam is connected with the other end of the connecting rod in an inserting mode; the second mounting rack is sleeved on the outer side of the other end of the bearing beam, and a gap is formed between the second mounting rack and the bearing beam; the rotating shaft penetrates through the other end of the bearing beam, two ends of the rotating shaft are connected with the second mounting frame at the same time, and a gap is formed between the rotating shaft and the bearing beam; the two second springs are sleeved on the outer side of the rotating shaft at the same time, the two second springs are respectively positioned on two sides of the bearing beam, one ends of the two second springs are attached to the bearing beam at the same time, and the other ends of the two second springs are attached to the second mounting frame at the same time; the bearing frame is positioned below the bearing beam and connected with the bearing beam; the two roller carriers are simultaneously connected with the bearing frame; the two rollers are respectively in rotating connection with the two roller frames; the four third springs are respectively sleeved on the outer sides of the two roller carriers, one ends of the third springs are connected with the bearing frame, and the other ends of the third springs are connected with the roller carriers.
In addition, the traction device for the semitrailer in the technical scheme provided by the utility model can also have the following additional technical characteristics:
in the above technical solution, preferably, the traction apparatus for a semitrailer further includes: a limiting groove; the cross section of the limiting groove is T-shaped, the limiting groove is arranged on the top surface of the bearing beam, and the other end of the connecting rod is embedded into the limiting groove.
In the above technical solution, preferably, the connecting rod includes: the rod body and the limiting part; one end of the rod body is connected with the second movable frame; the limiting portion is perpendicular to the rod body, one end of the limiting portion is connected with the other end of the rod body, and the other end of the limiting portion is connected with the limiting groove in a clamped mode.
In the above technical solution, preferably, the traction apparatus for a semitrailer further includes: the accommodating groove, the stop block and the fourth spring are arranged; the two accommodating grooves are symmetrically arranged above the limiting part and are communicated with the limiting groove at the same time; at least part of the stop blocks are embedded into the accommodating grooves, and the two stop blocks are simultaneously attached to the top surfaces of the limiting parts; the two fourth springs are respectively embedded into the two accommodating grooves, one ends of the two springs are respectively connected with the two stop blocks, and the other ends of the two fourth springs are simultaneously connected with the bearing beam.
In the above technical solution, preferably, the traction apparatus for a semitrailer further includes: a guide plate; the two guide plates are respectively positioned at two sides of the first spring, and after the two guide plates penetrate through the second moving frame, two ends of the two guide plates are simultaneously connected with the inner wall of the first moving frame; wherein a gap exists between the guide plate and the second movable frame.
In the above technical solution, preferably, the traction apparatus for a semitrailer further includes: a spring seat; the four spring seats are simultaneously sleeved on the outer side of the roller carrier and are respectively connected with two ends of the two third springs.
Compared with the prior art, the traction device for the semitrailer has the beneficial effects that: this device is through increasing many degrees of freedom, improves the flexibility that semitrailer and tractor are connected, when avoiding the road surface pothole, semitrailer and tractor junction directly receive the impact to there is certain activity space when guaranteeing the semitrailer connection, thereby avoids the condition production that the junction wearing and tearing are serious or damage, with the stability of guaranteeing to connect, avoids the semitrailer to disjoint, stability when guaranteeing to pull. The first movable frame can move left and right in the first mounting frame within a small range, so that excessive bending stress on a joint is avoided when the tractor changes lanes, and fatigue damage of the joint is avoided; through making gapped between pivot and the bearing frame, avoid the junction to receive too big torsion to guarantee the joint strength of junction, reduce the condition because of damaging the disconnection. When the tractor passes through the hollow, the semitrailer still is located the land, and the tractor is highly inconsistent with the semitrailer, and the second removes the frame and can follow the deflector up-and-down motion, and two first springs are flexible, remove the frame to the second and carry on spacingly and support, ensure that connecting rod and carrier bar can not strike together immediately, and then avoid the second to remove frame and first removal frame hard contact to guarantee the stability that tractor and draw gear are connected. In a similar way, the second spring limits and supports the bearing beam, the stability of the bearing beam is guaranteed, the bearing beam is prevented from being in hard contact with the second mounting frame, and the second spring guarantees the stability of connection between the traction device and the semitrailer. Simultaneously, the third spring supports gyro wheel, bear frame and carrier bar to share the impact force that the carrier bar received, guarantee the stability of carrier bar in the transportation, so that whole draw gear has sufficient stability, thereby avoid tractor and semitrailer junction to produce the striking, thereby avoid the problem production that the semitrailer takes place to disjoint, with the stability that improves tractor and semitrailer and be connected, thereby make the security of semitrailer in the transportation. The connecting rod is connected with the bearing beam in an inserting mode, the limiting is achieved through the stop block and the fourth spring, the fast loading and unloading can be achieved, the connection is stable, the falling is not prone to occurring, and the using requirements are met. And adopt this kind to pull the structure, can need not to align tractor and semitrailer completely and can be connected tractor and semitrailer, and efficiency of connection has very big promotion.
Drawings
FIG. 1 is a schematic structural view of a towing attachment for a semitrailer in accordance with an embodiment of the present invention;
FIG. 2 is an enlarged view of the portion A of the towing attachment for a semitrailer of FIG. 1 in accordance with an embodiment of the present invention;
fig. 3 is a schematic structural view of a first movable frame of a towing device for a semitrailer according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a connecting rod of a towing attachment for a semitrailer in accordance with an embodiment of the present invention;
wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
8. a tractor; 9. a semi-trailer; 10. a first mounting plate; 12. a first mounting bracket; 14. a first movable frame; 16. A second movable frame; 18. a connecting rod; 181. a rod body; 182. a limiting part; 20. a first spring; 22. a load beam; 24. a second mounting bracket; 26. a rotating shaft; 28. a second spring; 30. a carrier; 32. a roller frame; 34. a roller; 36. a third spring; 38. a limiting groove; 40. accommodating grooves; 42. a stopper; 44. a fourth spring; 46. a guide plate; 48. a spring seat.
Detailed Description
The utility model will be further described with reference to specific embodiments and figures 1 to 4, but the utility model is not limited to these embodiments.
Example 1
A towing attachment for a semitrailer 9 for coupling a semitrailer 9 to a towing vehicle 8, as shown in fig. 1-4, the towing attachment for a semitrailer 9 comprising: the first mounting plate 10, the first mounting frame 12, the first moving frame 14, the second moving frame 16, the connecting rod 18, the first spring 20, the load beam 22, the second mounting frame 24, the rotating shaft 26, the second spring 28, the carrier 30, the roller frame 32, the roller 34 and the third spring 36; the first mounting plate 10 is fixed to the tractor 8; the first mounting frame 12 is connected with the first mounting plate 10; the first movable frame 14 is embedded in the first mounting frame 12, and the first movable frame 14 is slidably connected with the first mounting frame 12; the second movable frame 16 is embedded in the first movable frame 14, and the second movable frame 16 is slidably connected with the first movable frame 14; the connecting rod 18 is perpendicular to the second moving frame 16, and one end of the connecting rod 18 is connected with the second moving frame 16; the first springs 20 are perpendicular to the connecting rod 18, one ends of the two first springs 20 are respectively connected with the top surface and the bottom surface of the second moving frame 16, and the other ends of the two first springs 20 are simultaneously connected with the first moving frame 14; one end of the bearing beam 22 is inserted with the other end of the connecting rod 18; the second mounting rack 24 is sleeved on the outer side of the other end of the carrier beam 22, and a gap exists between the second mounting rack 24 and the carrier beam 22; the rotating shaft 26 penetrates through the other end of the bearing beam 22, two ends of the rotating shaft 26 are connected with the second mounting frame 24 at the same time, and a gap exists between the rotating shaft 26 and the bearing beam 22; the two second springs 28 are simultaneously sleeved on the outer side of the rotating shaft 26, the two second springs 28 are respectively located on two sides of the bearing beam 22, one ends of the two second springs 28 are simultaneously attached to the bearing beam 22, and the other ends of the two second springs 28 are simultaneously attached to the second mounting frame 24; the bearing frame 30 is positioned below the bearing beam 22, and the bearing frame 30 is connected with the bearing beam 22; the two roller frames 32 are simultaneously connected with the bearing frame 30; the two rollers 34 are respectively connected with the two roller frames 32 in a rotating way; four third springs 36 are respectively sleeved on the outer sides of the two roller frames 32, one end of each third spring 36 is connected with the bearing frame 30, and the other end of each third spring 36 is connected with the roller frame 32.
In this embodiment, the towing means for the semitrailer 9 preferably further comprises: a limiting groove 38; the cross section of the limiting groove 38 is T-shaped, the limiting groove 38 is arranged on the top surface of the carrier beam 22, and the other end of the connecting rod 18 is embedded into the limiting groove 38, so that the connecting rod 18 is clamped with the carrier beam 22, the technical effect of rapidly dismounting the semitrailer 9 is achieved, and the traction continuity is guaranteed.
In this embodiment, preferably, the connecting rod 18 includes: a rod body 181 and a limiting part 182; one end of the rod body 181 is connected with the second moving frame 16, so that the rod body 181 and the second moving frame 16 synchronously move, the flexibility of the rod body 181 is improved, the bearing beam 22 can move up and down to avoid the road surface from being hollow, the joint of the semi-trailer 9 and the tractor 8 is collided, the joint is prevented from being damaged, the semi-trailer 9 is prevented from being disjointed, and the bearing capacity of the joint is improved; through making spacing portion 182 perpendicular to the body of rod 181, the one end of spacing portion 182 is connected with the other end of the body of rod 181, and the other end of spacing portion 182 and spacing groove 38 looks joint to be connected tractor 8 and semitrailer 9 fast, improve and dismantle speed, go on time with the assurance transportation.
In this embodiment, the towing means for the semitrailer 9 preferably further comprises: receiving groove 40, stopper 42 and fourth spring 44; the two accommodating grooves 40 are symmetrically arranged above the limiting part 182, and the two accommodating grooves 40 are simultaneously communicated with the limiting groove 38, so that the load-bearing beam 22 has an accommodating function; at least part of the stoppers 42 are embedded into the accommodating grooves 40, and the two stoppers 42 are simultaneously attached to the top surfaces of the limiting parts 182, so that the limiting parts 182 are limited, the limiting parts 182 are prevented from being separated from the limiting grooves 38, and the stability of connection between the semitrailer 9 and the tractor 8 is ensured; through making two fourth springs 44 imbed respectively in two holding tanks 40, the one end of two springs is connected with two dogs 42 respectively, and the other end of two fourth springs 44 is connected with carrier bar 22 simultaneously to the realization resets the technological effect with dog 42, and spacing carry out dog 42, avoids dog 42 to remove at will, guarantees the stability that connecting rod 18 and carrier bar 22 are connected, thereby ensures the stability that tractor 8 and semitrailer 9 are connected.
Specifically, when the limiting part 182 is embedded into the limiting groove 38, the semitrailer 9 is connected with the tractor 8, the fourth spring 44 is in a natural state, and the stopper 42 limits the limiting part 182, so that the limiting part 182 is stably connected with the limiting groove 38; when the semitrailer 9 is to be dismounted, the stoppers 42 are pushed to both sides, so that the stoppers 42 are respectively embedded into the two accommodating grooves 40, the fourth spring 44 is compressed, and at this time, the limiting portion 182 can be taken out of the limiting groove 38, and the semitrailer 9 is dismounted.
In this embodiment, the towing means for the semitrailer 9 preferably further comprises: a guide plate 46; by respectively positioning the two guide plates 46 at two sides of the first spring 20, after the two guide plates 46 pass through the second moving frame 16, two ends of the two guide plates 46 are simultaneously connected with the inner wall of the first moving frame 14, so that the second moving frame 16 is slidably connected with the first moving frame 14, and the second moving frame 16 moves along the first moving frame, the second moving frame 16 is prevented from rotating, the semi-trailer 9 is prevented from being too flexible and difficult to turn, and the smooth transportation work is ensured; through making there be the clearance between deflector 46 and the second removes frame 16 to reduce the friction between deflector 46 and the second removes frame 16, reduce wearing and tearing, and when guaranteeing semitrailer 9 vibrations, first spring 20 is flexible, fast to the position control of connecting rod 18 and carrier bar 22, thereby reaches the technological effect of carrying out quick adjustment to semitrailer 9 position, stability when guaranteeing semitrailer 9 transportation, noise abatement.
In this embodiment, the towing means for the semitrailer 9 preferably further comprises: a spring seat 48; through the simultaneous suit in the outside of gyro wheel frame 32 with four spring seats 48, and four spring seats 48 are connected with the both ends of two third springs 36 respectively, in order to carry on spacingly and fixed to fourth spring 44, promote the stability of fourth spring 44, in order to guarantee to carry out stable support to carrier beam 22, reach the purpose to carrier beam 22 absorbing shock, thereby share the effort that carrier beam 22 bore, guarantee the joint strength of connecting rod 18 between to carrier beam 22, guarantee the stability that semitrailer 9 is connected with tractor 8 promptly.
The embodiment is applied to a certain group of tractors 8 and semitrailers 9 in an experimental way, 10 tons of goods are transported between two cities in province, the total distance is about 380 kilometers, the road between the two cities is smooth, the transportation process is smooth, the traction device is inspected after the transportation, and the joint of the traction device is free of deformation and damage which are visible to naked eyes. The connection efficiency of the semitrailer 9 and the tractor 8 is shortened by about 5 minutes, and the connection efficiency is improved by about 35 percent.

Claims (6)

1.一种半挂车用牵引装置,用于将半挂车连接在牵引车上,其特征在于,所述半挂车用牵引装置包括:1. A traction device for a semi-trailer, for connecting the semi-trailer on a tractor, it is characterized in that, the traction device for the semi-trailer comprises: 第一安装板,所述第一安装板固定在所述牵引车上;a first mounting plate, the first mounting plate is fixed on the tractor; 第一安装架,所述第一安装架与所述第一安装板相连接;a first installation frame, the first installation frame is connected with the first installation plate; 第一移动架,所述第一移动架嵌入所述第一安装架内,且所述第一移动架与所述第一安装架滑动连接;a first moving frame, the first moving frame is embedded in the first installation frame, and the first moving frame is slidably connected with the first installation frame; 第二移动架,所述第二移动架嵌入所述第一移动架内,且所述第二移动架与所述第一移动架滑动连接;a second moving frame, the second moving frame is embedded in the first moving frame, and the second moving frame is slidably connected with the first moving frame; 连接杆,所述连接杆垂直于所述第二移动架,且所述连接杆的一端与所述第二移动架相连接;a connecting rod, the connecting rod is perpendicular to the second moving frame, and one end of the connecting rod is connected with the second moving frame; 第一弹簧,所述第一弹簧垂直于所述连接杆,两个所述第一弹簧的一端分别与所述第二移动架的顶面和底面相连接,且两个所述第一弹簧的另一端同时与所述第一移动架相连接;The first spring, the first spring is perpendicular to the connecting rod, one ends of the two first springs are respectively connected with the top surface and the bottom surface of the second moving frame, and the two first springs are The other end is connected with the first moving frame at the same time; 承载梁,所述承载梁的一端与所述连接杆的另一端相插接;a bearing beam, one end of the bearing beam is inserted into the other end of the connecting rod; 第二安装架,所述第二安装架套装在所述承载梁另一端的外侧,且所述第二安装架与所述承载梁之间存在间隙;a second installation frame, the second installation frame is sleeved on the outer side of the other end of the bearing beam, and there is a gap between the second installation frame and the bearing beam; 转轴,所述转轴穿过所述承载梁的另一端,所述转轴的两端同时与所述第二安装架相连接,且所述转轴与所述承载梁之间存在间隙;a rotating shaft, the rotating shaft passes through the other end of the bearing beam, both ends of the rotating shaft are connected to the second mounting frame at the same time, and there is a gap between the rotating shaft and the bearing beam; 第二弹簧,两个所述第二弹簧同时套装在所述转轴的外侧,两个所述第二弹簧分别位于所述承载梁的两侧,两个所述第二弹簧的一端同时与所述承载梁相贴合,且两个所述第二弹簧的另一端同时与所述第二安装架相贴合;The second spring, the two second springs are simultaneously sleeved on the outside of the rotating shaft, the two second springs are respectively located on both sides of the bearing beam, and one end of the two second springs is simultaneously connected to the The bearing beams are attached to each other, and the other ends of the two second springs are attached to the second mounting frame at the same time; 承载架,所述承载架位于所述承载梁的下方,且所述承载架与所述承载梁相连接;a bearing frame, the bearing frame is located below the bearing beam, and the bearing frame is connected with the bearing beam; 滚轮架,两个所述滚轮架同时与所述承载架相连接;a roller frame, two of the roller frames are connected with the bearing frame at the same time; 滚轮,两个所述滚轮分别与两个所述滚轮架转动连接;a roller, the two rollers are respectively rotatably connected with the two roller frames; 第三弹簧,四个所述第三弹簧分别套装在两个所述滚轮架的外侧,所述第三弹簧的一端与所述承载架相连接,且所述第三弹簧的另一端与所述滚轮架相连接。The third spring, four of the third springs are respectively sleeved on the outside of the two roller frames, one end of the third spring is connected to the carrier frame, and the other end of the third spring is connected to the The roller frame is connected. 2.根据权利要求1所述的一种半挂车用牵引装置,其特征在于,所述半挂车用牵引装置还包括:2. The traction device for a semi-trailer according to claim 1, wherein the traction device for a semi-trailer further comprises: 限位槽,所述限位槽的横截面呈T字型,所述限位槽设置在所述承载梁的顶面上,且所述连接杆的另一端嵌入所述限位槽内。A limit slot, the cross section of the limit slot is T-shaped, the limit slot is arranged on the top surface of the bearing beam, and the other end of the connecting rod is embedded in the limit slot. 3.根据权利要求2所述的一种半挂车用牵引装置,其特征在于,所述连接杆包括:3. The traction device for a semi-trailer according to claim 2, wherein the connecting rod comprises: 杆体,所述杆体的一端与所述第二移动架相连接;a rod body, one end of the rod body is connected with the second moving frame; 限位部,所述限位部垂直于所述杆体,所述限位部的一端与所述杆体的另一端相连接,且所述限位部的另一端与所述限位槽相卡接。Limiting portion, the limiting portion is perpendicular to the rod body, one end of the limiting portion is connected with the other end of the rod body, and the other end of the limiting portion is clamped with the limiting groove . 4.根据权利要求3所述的一种半挂车用牵引装置,其特征在于,所述半挂车用牵引装置还包括:4. The traction device for a semi-trailer according to claim 3, wherein the traction device for a semi-trailer further comprises: 容纳槽,两个所述容纳槽对称设置在所述限位部的上方,且两个所述容纳槽同时与所述限位槽相连通;an accommodating groove, the two accommodating grooves are symmetrically arranged above the limiting portion, and the two accommodating grooves communicate with the limiting groove at the same time; 挡块,至少部分所述挡块嵌入所述容纳槽内,且两个所述挡块同时与所述限位部的顶面相贴合;a stopper, at least part of the stopper is embedded in the accommodating groove, and two of the stopper are attached to the top surface of the limiting portion at the same time; 第四弹簧,两个所述第四弹簧分别嵌入两个所述容纳槽内,两个所述弹簧的一端分别与两个所述挡块相连接,且两个所述第四弹簧的另一端同时与所述承载梁相连接。Fourth springs, two of the fourth springs are respectively embedded in the two receiving grooves, one end of the two springs is respectively connected with the two stoppers, and the other ends of the two fourth springs are respectively At the same time, it is connected with the bearing beam. 5.根据权利要求1所述的一种半挂车用牵引装置,其特征在于,所述半挂车用牵引装置还包括:5. The traction device for a semi-trailer according to claim 1, wherein the traction device for a semi-trailer further comprises: 导向板,两个所述导向板分别位于所述第一弹簧的两侧,两个所述导向板穿过所述第二移动架后,两个所述导向板的两端同时与所述第一移动架的内壁相连接;Guide plates, the two guide plates are respectively located on both sides of the first spring, after the two guide plates pass through the second moving frame, the two ends of the two guide plates are simultaneously connected to the first spring. The inner wall of a movable frame is connected; 其中,所述导向板与所述第二移动架之间存在间隙。Wherein, there is a gap between the guide plate and the second moving frame. 6.根据权利要求1至5中任一项所述的一种半挂车用牵引装置,其特征在于,所述半挂车用牵引装置还包括:6. The traction device for a semi-trailer according to any one of claims 1 to 5, wherein the traction device for a semi-trailer further comprises: 弹簧座,四个所述弹簧座同时套装在所述滚轮架的外侧,且四个所述弹簧座分别与两个所述第三弹簧的两端相连接。A spring seat, four of the spring seats are simultaneously sleeved on the outer side of the roller frame, and the four spring seats are respectively connected with the two ends of the two third springs.
CN202121344052.2U 2021-06-17 2021-06-17 Traction device for semitrailer Expired - Fee Related CN215705506U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115214276A (en) * 2022-07-19 2022-10-21 安徽江淮汽车集团股份有限公司 A commercial vehicle chassis traction aid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115214276A (en) * 2022-07-19 2022-10-21 安徽江淮汽车集团股份有限公司 A commercial vehicle chassis traction aid

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