Semitrailer damping supporting device

Abstract

The utility model relates to the technical field of semitrailer accessories, in particular to a semitrailer damping supporting device which comprises a lower supporting seat and an upper supporting seat, and an upper supporting sleeve is integrally formed at the end, close to the lower supporting seat, of the upper supporting seat. A supporting shaft is integrally formed at the end, close to the upper supporting base, of the lower supporting base, and a through center hole is formed in the middle of the upper supporting sleeve. The supporting shaft penetrates through the center hole, and a damping mechanism is arranged between the upper supporting sleeve and the supporting shaft. And a detection assembly for detecting the supporting shaft is arranged on the lower supporting seat. In the process of damping and supporting the carriage, the damping and supporting device can be detected in real time, so that overhaul and maintenance are facilitated, and accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-trailer accessories, in particular to a shock-absorbing support device for a semi-trailer. Background Art

[0002] A trailer is a trailer with the axle placed behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. Semi-trailers are generally three-axle semi-trailers, which are divided into many types such as 11-meter warehouse semi-trailers, 13-meter warehouse semi-trailers, low-bed semi-trailers, etc. It is a heavy-duty transportation vehicle connected to the semi-trailer head through a traction pin.

[0003] The semi-trailer shock-absorbing support device is a device that connects and supports the car body and the frame, with the purpose of further improving the safety and stability of the car body. In the prior art, shock absorbers are generally used for connection. Although this method can achieve the purpose of support and vibration reduction, when the semi-trailer car body is used for a long time and is subjected to vibration for a long time, it is easy to cause deformation and damage to the shock-absorbing device. The prior art cannot predict in advance whether the shock-absorbing device will fail, and therefore cannot prevent the failure in advance. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a shock-absorbing support device for a semi-trailer. During the process of shock-absorbing and supporting the carriage, the shock-absorbing support device can be detected in real time, thereby facilitating inspection and maintenance and avoiding accidents.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, an embodiment of the present application provides a semi-trailer shock-absorbing support device, including a lower support seat and an upper support seat, wherein an upper support sleeve is integrally formed at one end of the upper support seat close to the lower support seat; a support shaft is integrally formed at one end of the lower support seat close to the upper support seat, and a central hole is penetrated through the middle of the upper support sleeve; the support shaft passes through the central hole, and a vibration-absorbing mechanism is arranged between the upper support sleeve and the support shaft; and a detection component for detecting the support shaft is arranged on the lower support seat.

[0008] Preferably, a mounting seat is provided at one end of the lower support seat away from the upper support seat, a detection hole is opened at the center of the support shaft, the detection hole passes through a side of the lower support seat close to the mounting seat, and the detection component is installed in the detection hole.

[0009] Preferably, a limiting groove is provided on one side of the lower support seat close to the mounting seat, and a limiting block is integrally formed on one side of the mounting seat close to the lower support seat, and the limiting block is embedded in the limiting groove; the lower support seat and the mounting seat are fixedly connected by bolts.

[0010] Preferably, the cross-section of the detection hole is rectangular; the detection component includes a detection column fixed to the upper side of the limit block, the cross-section of the detection column is rectangular, and the detection column is inserted into the detection hole; a pressure sensor is fixedly arranged on the vertical side of the detection column, and the pressure sensor is in virtual contact with the inner wall of the detection hole.

[0011] Preferably, the vibration damping mechanism includes a lower support sleeve fixed on the lower support seat, the lower support sleeve is located on the outside of the support shaft, and one end of the upper support sleeve away from the upper support seat is inserted into the lower support sleeve; a first compression spring is provided on the inner side of the lower support sleeve, one end of the first compression spring abuts against the lower support seat, and the other end abuts against the upper support sleeve.

[0012] Preferably, a second compression spring is sleeved on the outer side of the upper support sleeve, one end of the second compression spring abuts against the upper support seat, and the other end abuts against the end of the lower support sleeve.

[0013] Preferably, the upper support seat is away from one end of the lower support seat, and a limiting hole is opened on the outside of the center hole; the diameter of the limiting hole is larger than the diameter of the center hole; a limiting component is arranged on the support shaft, and the limiting component is located in the limiting hole.

[0014] Preferably, the limit assembly includes a limit column integrally formed on the support shaft and located at one end away from the lower support seat, and the diameter of the limit column is smaller than the diameter of the support shaft; a limit ring is sleeved on the limit column, the inner diameter of the limit ring is smaller than the diameter of the support shaft, and the outer diameter of the limit ring is larger than the diameter of the center hole and smaller than the diameter of the limit hole; a locking nut is threadedly connected to the limit column, and the locking nut is located at one end of the limit ring away from the lower support seat.

[0015] (III) Beneficial effects

[0016] The utility model improves a semi-trailer shock-absorbing support device, which realizes the shock-absorbing support purpose of the device through an upper support sleeve, a support shaft and a shock-absorbing component arranged between an upper support seat and a lower support seat. During the working process, the shock-absorbing support device can be detected in real time through the detection component arranged, so as to facilitate inspection and maintenance and avoid accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a structural schematic diagram of a semi-trailer shock-absorbing support device of the utility model;

[0018] Figure 2 for Figure 1 A magnified view of the structure in Figure 1.

[0019] Markings in the accompanying drawings:

[0020] 100, lower support seat; 110, support shaft; 111, detection hole; 120, limit groove; 200, upper support seat; 210, upper support sleeve; 211, center hole; 220, limit hole; 300, vibration reduction mechanism; 310, lower support sleeve; 320, first compression spring; 330, second compression spring; 400, detection assembly; 410, detection column; 420, pressure sensor; 500, mounting seat; 510, limit block; 520, bolt; 600, limit assembly; 610, limit column; 620, limit ring; 630, locking nut. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] The utility model provides a semi-trailer shock-absorbing support device, see Figure 1-Figure 2 , including a lower support seat 100 and an upper support seat 200, an upper support sleeve 210 is integrally formed at one end of the upper support seat 200 close to the lower support seat 100; a support shaft 110 is integrally formed at one end of the lower support seat 100 close to the upper support seat 200, and a central hole 211 is provided in the middle of the upper support sleeve 210; the support shaft 110 passes through the central hole 211, and a vibration reduction mechanism 300 is arranged between the upper support sleeve 210 and the support shaft 110; a detection component 400 for detecting the support shaft 110 is arranged on the lower support seat 100. When working, the upper support seat 200 is connected to the carriage, and the lower mounting seat 500 is connected to the frame. After installation, the vibration reduction effect is achieved through the vibration reduction mechanism 300. During long-term operation, the support shaft 110 is prone to twisting or breaking. The detection component 400 can be used for early detection, which is convenient for inspection and maintenance to avoid accidents.

[0024] Specifically, a mounting seat 500 is provided at one end of the lower support seat 100 away from the upper support seat 200, and a detection hole 111 is opened at the center of one end of the support shaft 110 close to the mounting seat 500. The detection hole 111 passes through one side of the lower support seat 100 close to the mounting seat 500, and the detection component 400 is installed in the detection hole 111.

[0025] A limiting groove 120 is provided on one side of the lower support seat 100 close to the mounting seat 500, and a limiting block 510 is integrally formed on one side of the mounting seat 500 close to the lower support seat 100, and the limiting block 510 is embedded in the limiting groove 120; the lower support seat 100 and the mounting seat 500 are fixedly connected by bolts 520. In normal use, the lower support seat 100 and the mounting seat 500 are fixedly connected, and the limiting effect of the limiting block 510, when all components are in normal condition, the two will not produce relative displacement when subjected to vibration.

[0026] Specifically, the cross section of the detection hole 111 is rectangular; the detection assembly 400 includes a detection column 410 fixed to the upper side of the limit block 510, the cross section of the detection column 410 is rectangular, and the detection column 410 is inserted into the detection hole 111; a pressure sensor 420 is fixedly arranged on the vertical side of the detection column 410, and the pressure sensor 420 is in virtual contact with the inner wall of the detection hole 111. During operation, when the support shaft 110 is not deformed or displaced, due to the fixed connection between the lower support seat 100 and the mounting seat 500, the inner detection column 410 and the detection hole 111 maintain synchronous movement, and the pressure sensor 420 will not detect additional pressure values. When the support shaft 110 is deformed or displaced, since the inner detection column 410 is fixedly connected to the mounting seat, the detection column 410 will be relatively displaced with the support shaft 110 parameters, which will then cause the value detected by the pressure sensor 420 to change. The pressure sensor 420 will be the first to detect this information, so that the vehicle can be inspected and repaired in advance, which will help eliminate safety hazards and increase the service life of vehicle components.

[0027] Specifically, wiring grooves are provided on the upper side of the mounting base 500 and the vertical side of the detection column, and the wiring grooves are used to connect the pressure sensor.

[0028] The shock absorbing mechanism 300 includes a lower support sleeve 310 fixed on the lower support seat 100, the lower support sleeve 310 is located on the outside of the support shaft 110, and the end of the upper support sleeve 210 away from the upper support seat 200 is inserted into the lower support sleeve; a first compression spring 320 is arranged on the inner side of the lower support sleeve 310, one end of the first compression spring 320 abuts against the lower support seat 100, and the other end abuts against the upper support sleeve 210.

[0029] More preferably, a second compression spring 330 is sleeved on the outer side of the upper support sleeve 210 , one end of the second compression spring 330 abuts against the upper support seat 200 , and the other end abuts against the end of the lower support sleeve 310 .

[0030] The upper support seat 200 is located at one end away from the lower support seat 100 and has a limiting hole 220 located outside the center hole 211; the diameter of the limiting hole 220 is larger than the diameter of the center hole 211; a limiting component 600 is set on the support shaft 110, and the limiting component 600 is located in the limiting hole 220.

[0031] The limiting assembly 600 includes a limiting column 610, which is integrally formed at one end of the support shaft 110 away from the lower support seat 100, and the diameter of the limiting column 610 is smaller than the diameter of the support shaft 110; a limiting ring 620 is sleeved on the limiting column 610, and the inner diameter of the limiting ring 620 is smaller than the diameter of the support shaft 110, and the outer diameter of the limiting ring 620 is larger than the diameter of the center hole 211 and smaller than the diameter of the limiting hole 220; a locking nut 630 is threadedly connected to the limiting column 610, and the locking nut 630 is located at the end of the limiting ring 620 away from the lower support seat 100.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In the absence of conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0034] The above-mentioned embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A semi-trailer shock-absorbing support device, characterized in that: It comprises a lower support seat (100) and an upper support seat (200), wherein an upper support sleeve (210) is integrally formed at one end of the upper support seat (200) close to the lower support seat (100); A support shaft (110) is integrally formed at one end of the lower support seat (100) close to the upper support seat (200), and a penetrating center hole (211) is formed in the middle of the upper support sleeve (210); The support shaft (110) passes through the central hole (211); a vibration reduction mechanism (300) is provided between the upper support sleeve (210) and the support shaft (110); and a detection component (400) for detecting the support shaft (110) is provided on the lower support seat (100).

2. A semitrailer shock-absorbing support device according to claim 1, characterized in that: A mounting seat (500) is provided at one end of the lower supporting seat (100) away from the upper supporting seat (200), a detection hole (111) is provided at the center of the supporting shaft (110), the detection hole (111) passes through a side of the lower supporting seat (100) close to the mounting seat (500), and the detection assembly (400) is installed in the detection hole (111).

3. A semitrailer shock-absorbing support device according to claim 2, characterized in that: A limiting groove (120) is provided on a side surface of the lower support seat (100) close to the mounting seat (500); a limiting block (510) is integrally formed on a side surface of the mounting seat (500) close to the lower support seat (100); the limiting block (510) is embedded in the limiting groove (120); and the lower support seat (100) and the mounting seat (500) are fixedly connected by bolts (520).

4. A semitrailer shock-absorbing support device according to claim 3, characterized in that: The cross section of the detection hole (111) is rectangular; The detection component (400) comprises a detection column (410) fixed to the upper side of the limit block (510); the cross section of the detection column (410) is rectangular, and the detection column (410) is inserted into the detection hole (111); A pressure sensor (420) is fixedly arranged on the vertical side surface of the detection column (410), and the pressure sensor (420) is in virtual contact with the inner wall of the detection hole (111).

5. The shock-absorbing support device for a semitrailer according to claim 1, characterized in that: The vibration reduction mechanism (300) comprises a lower support sleeve (310) fixed on the lower support seat (100), the lower support sleeve (310) is located outside the support shaft (110), and one end of the upper support sleeve (210) away from the upper support seat (200) is inserted into the lower support sleeve; A first compression spring (320) is arranged inside the lower support sleeve (310); one end of the first compression spring (320) abuts against the lower support seat (100), and the other end abuts against the upper support sleeve (210).

6. A semitrailer shock-absorbing support device according to claim 5, characterized in that: A second compression spring (330) is sleeved on the outer side of the upper support sleeve (210); one end of the second compression spring (330) abuts against the upper support seat (200), and the other end abuts against the end of the lower support sleeve (310).

7. The shock-absorbing support device for a semitrailer according to claim 1, characterized in that: A limiting hole (220) is provided at one end of the upper support seat (200) away from the lower support seat (100) and located outside the central hole (211); The diameter of the limiting hole (220) is greater than the diameter of the central hole (211); a limiting component (600) is provided on the support shaft (110), and the limiting component (600) is located in the limiting hole (220).

8. A shock-absorbing support device for a semitrailer according to claim 7, characterized in that: The limiting assembly (600) comprises a limiting column (610) integrally formed on the support shaft (110) and located at an end away from the lower support seat (100), and the diameter of the limiting column (610) is smaller than the diameter of the support shaft (110); A limiting ring (620) is sleeved on the limiting column (610), the inner diameter of the limiting ring (620) is smaller than the diameter of the support shaft (110), and the outer diameter of the limiting ring (620) is larger than the diameter of the center hole (211) and smaller than the diameter of the limiting hole (220); A locking nut (630) is threadedly connected to the limiting column (610), and the locking nut (630) is located at an end of the limiting ring (620) away from the lower support seat (100).

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