Novel semitrailer suspension device

Abstract

The utility model discloses a novel semitrailer suspension device, which relates to the technical field of semitrailer suspension, aims to solve the technical problem that the driving safety is easy to cause when the semitrailer runs on a bumpy road section, and comprises a bow plate group, a fixing plate and a fixing component are arranged on the top surface of the bow plate group, and a connecting block I is arranged at the bottom of the bow plate group. A plurality of threaded bolts penetrate through the fixing plate from top to bottom, a supporting column is connected to the top face of the fixing plate, a frame longitudinal beam is arranged on the top face of the supporting column, and first fixing blocks are arranged on the two symmetrical side walls of the supporting column; the side wall of the frame longitudinal beam is sleeved with a concave block, and a second fixing block is arranged at the bottom of the concave block. The suspension device has the advantages of being stable and firm in suspension structure, good in damping effect when driving on a bumpy road section and high in driving safety.

Description

Technical Field

[0001] The utility model relates to the technical field of semitrailer suspension, and more specifically to a novel semitrailer suspension device. Background Art

[0002] A semi-trailer is a common freight vehicle, which consists of two parts: a tractor and a trailer;

[0003] Unlike a full trailer, a semitrailer has its axle mounted behind the vehicle's center of gravity and is equipped with a hitch that transmits horizontal and vertical forces to the towing vehicle;

[0004] Semi-trailer suspension is the general term for all force-transmitting connecting devices between the semi-trailer frame and the axle. It is used to transmit the force and torque acting between the wheels and the frame, cushion the impact force transmitted to the frame or body by the road surface, and reduce the vibration caused thereby to ensure that the car can run smoothly.

[0005] Existing semi-trailers mainly carry large cargoes. Most semi-trailer suspensions use steel plate stamping rigid suspensions, which are composed of series steel plate springs and suspension supports. This structure has strong rigidity and strength, which also causes the semi-trailer to be bumpy and vibrate strongly when driving on some bumpy roads, which is not conducive to the safety of the driving process. In view of this, we propose a new semi-trailer suspension device. Utility Model Content

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art, meet practical needs, and provide a novel semi-trailer suspension device to solve the current technical problem of driving safety that is easily caused when traveling on bumpy roads.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a novel semi-trailer suspension device, comprising a bow plate group, the bow plate group is composed of a plurality of bow plates, a fixing plate and a fixing assembly are arranged on the top surface of the bow plate group, a connecting block 1 is arranged on the bottom of the bow plate group, a plurality of threaded pins are penetrated from top to bottom on the fixing plate, a support column is connected to the top surface of the fixing plate, a frame longitudinal beam is arranged on the top surface of the support column, and a fixing block 1 is arranged on the symmetrical two side walls of the support column;

[0008] The fixing assembly comprises a connecting block 2, a clamping plate 1, a clamping plate 2 and a connecting block 3, the circumferential side wall of the connecting block 2 is sleeved with a damping rod, the top of the damping rod is provided with the fixing block 1, the connecting block 3 is arranged on the top surface of the bow plate group, the connecting block 3 is internally rotatably connected to the damping rod, the top surface of the connecting block 3 is provided with the clamping plate 1, the bottom surface of the bow plate group is provided with the clamping plate 2, and the connecting block 3 is internally connected with the damping rod;

[0009] The side wall of the frame longitudinal beam is sleeved with a concave block, the bottom of the concave block is provided with a second fixing block, the damping rod is connected inside the second fixing block, and the bottom of the damping rod connected to the second fixing block is connected to the third connecting block.

[0010] Preferably, the top surface of the fixing plate is in a semicircular convex shape, the threaded pin is in a "U"-shaped structure, and the threaded pin passes through the top surface of the fixing plate and the top surface of the connecting block 1.

[0011] Preferably, the bottom of the second connecting block is connected to the bow plate group, and the second connecting block is a cylindrical structure.

[0012] Preferably, the first clamping plate and the second clamping plate are fixedly connected by a plurality of bolts and nuts.

[0013] Preferably, the damping rod comprises a buckle plate, a connecting rod is connected to the bottom of the buckle plate, a connecting column is connected to the bottom of the connecting rod, a buckle head is connected to the bottom of the connecting column, and a spring is sleeved on the circumferential side wall of the connecting rod.

[0014] Preferably, there are multiple damping rods, and the multiple damping rods are respectively engaged with the fixing block 1 and the fixing block 2 through the buckle plate, and the multiple damping rods are respectively engaged with the connecting block 2 and the connecting block 3 through the buckle head.

[0015] Preferably, the top surface of the connection block is provided with a plurality of grooves, the plurality of grooves are in an array-arranged tooth-like shape, the first clamping plate is a rectangular plate structure, and the bottom surface of the first clamping plate is provided with convex teeth matching the grooves.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model connects and fixes the fixing plate and the connecting block 1 through a threaded pin, and the fixing plate and the connecting block 1 clamp and fix the bow plate group, and cooperate with two groups of clamping plates 1 and 2 to clamp and fix the bow plate group, so that the bow plate group structure is more stable, and the impact of the vibration caused by the semi-trailer driving on bumpy roads on the stability of the suspension is relatively low, which solves the problem of driving safety that is easily caused by driving on bumpy roads.

[0018] 2. The utility model also designs four groups of damping rods, two of which are connected between two groups of fixed blocks one and connecting block two, and the other two groups are connected between two groups of connecting blocks three and fixed block two, so that the vibration caused by the bow plate group can be reduced through the reaction force of the four groups of damping rods, which is beneficial to the stability of the frame longitudinal beam and further solves the driving safety problem that is easily caused by driving on bumpy roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure perspective of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model from a second perspective;

[0021] Figure 3 It is an enlarged schematic diagram of the structure of point A of the utility model;

[0022] Figure 4 It is a schematic diagram of the damping rod structure of the utility model;

[0023] Figure 5 It is a cross-sectional schematic diagram of the connection structure of the clamping plate 1 and the connection block 3 of the utility model;

[0024] Figure 6 The utility model is a schematic diagram of a use state.

[0025] Description of the numbers in the figure:

[0026] 1. Frame longitudinal beam; 2. Bow plate assembly; 3. Fixed plate; 301. Threaded pin; 302. Connecting block 1; 303. Support column; 304. Fixed block 1; 4. Damping rod; 401. Buckle plate; 402. Connecting rod; 403. Spring; 404. Connecting column; 405. Buckle head; 5. Fixed assembly; 501. Connecting block 2; 502. Clamp 1; 503. Clamp 2; 504. Connecting block 3; 505. Groove; 506. Protruding tooth; 601. Concave block; 602. Fixed block 2. DETAILED DESCRIPTION

[0027] like Figures 1 to 5 As shown, the utility model relates to a novel semi-trailer suspension device, including a bow plate group 2, the bow plate group 2 is composed of a plurality of bow plates, the top surface of the bow plate group 2 is provided with a fixing plate 3 and a fixing assembly 5, the bottom of the bow plate group 2 is provided with a connecting block 302, the fixing plate 3 is penetrated by two threaded pins 301 from top to bottom, the top surface of the fixing plate 3 is welded with a support column 303, the top surface of the support column 303 is provided with a frame longitudinal beam 1, and the symmetrical two side walls of the support column 303 are provided with fixing blocks 304;

[0028] In the embodiment of the utility model, the top surface of the support column 303 is connected with a threaded rod, and the frame longitudinal beam 1 is provided with a rod hole matching the threaded rod from top to bottom. After the threaded rod passes through the rod hole, it is fixed by a nut, which is convenient for installation and disassembly between the support column 303 and the frame longitudinal beam 1, and is conducive to disassembly and maintenance;

[0029] The fixing assembly 5 includes a second connection block 501, a clamping plate 1 502, a second clamping plate 503 and a third connection block 504. The circumferential side wall of the second connection block 501 is sleeved with a damping rod 4. The top of the damping rod 4 is provided with a fixing block 1 304. The third connection block 504 is provided on the top surface of the bow plate group 2. The damping rod 4 is rotatably connected inside the third connection block 504. The top surface of the third connection block 504 is provided with a clamping plate 1 502. The bottom surface of the bow plate group 2 is provided with a clamping plate 2 503. The third connection block 504 is internally connected with another damping rod 4.

[0030] A concave block 601 is sleeved on the side wall of the frame longitudinal beam 1, a second fixing block 602 is arranged at the bottom of the concave block 601, a damping rod 4 is connected inside the second fixing block 602, and the bottom of the damping rod 4 connected to the second fixing block 602 is connected to the third connecting block 504;

[0031] In the embodiment of the utility model, the fixing plate 3 and the connecting block 1 302 are connected and fixed by the threaded pin 301, and the fixing plate 3 and the connecting block 1 302 clamp and fix the bow plate group 2, and cooperate with two groups of clamp plates 1 502 and clamp plates 2 503 to clamp and fix the bow plate group 2, so that the structure of the bow plate group 2 is more stable, and the semi-trailer will not be affected by the shock caused by driving on bumpy roads. The utility model also designs four groups of damping rods 4, two groups of damping rods 4 are connected between two groups of fixing blocks 1 304 and connecting block 2 501, and the other two groups of damping rods 4 are connected between two groups of connecting blocks 3 504 and fixing block 2 602, so that the vibration brought by the bow plate group 2 can achieve the effect of reducing the vibration through the reaction force of the four groups of damping rods 4, which is beneficial to the stability of the frame longitudinal beam 1.

[0032] Specifically, the top surface of the fixing plate 3 is a semicircular protrusion shape, and the threaded pin 301 is a "U"-shaped structure. The semicircular protrusion shape matches the "U"-shaped structure of the threaded pin 301. The threaded pin 301 penetrates the top surface of the fixing plate 3 and the top surface of the connecting block 1 302, and the fixing plate 3 and the connecting block 1 302 are connected and fixed by the threaded pin 301.

[0033] Furthermore, the bottom of the second connecting block 501 is connected to the bow plate group 2 , and the second connecting block 501 is a cylindrical structure, which is conducive to matching the shape of the buckle 405 at the bottom of the damping rod 4 .

[0034] It is worth noting that the first clamping plate 502 and the second clamping plate 503 are fixedly connected by a plurality of bolts and nuts, so as to facilitate disassembly.

[0035] It is worth noting that the damping rod 4 includes a buckle plate 401, a connecting rod 402 is connected to the bottom of the buckle plate 401, a connecting column 404 is connected to the bottom of the connecting rod 402, a buckle head 405 is connected to the bottom of the connecting column 404, and a spring 403 is sleeved on the circumferential side wall of the connecting rod 402. When the bow plate group 2 is subjected to vibration, the vibration is transmitted to the connecting rod 402 and the connecting column 404. The reaction force generated by the spring 403 prevents the connecting rod 402 and the connecting column 404 from shaking significantly due to the vibration, thereby further reducing the vibration of the top frame longitudinal beam 1, which is beneficial to buffering and shock absorbing the vibration caused by bumps.

[0036] It is worth mentioning that there are multiple damping rods 4, two damping rods 4 are respectively engaged with fixed block 1 304 and fixed block 2 602 through buckle plates 401, and two damping rods 4 are respectively engaged with connecting block 2 501 and connecting block 3 504 through buckles 405, so that both ends of the damping rod 4 are fixed while having a certain amount of room for movement, which is conducive to reducing the vibration.

[0037] In addition, a plurality of grooves 505 are provided on the top surface of the connecting block three 504, and the plurality of grooves 505 are in an array-arranged tooth-like shape. The splint one 502 is a rectangular plate structure, and a convex tooth 506 matching the groove 505 is provided on the bottom surface of the splint one 502. When the spring 403 on the damping rod 4 connected to the connecting block three 504 produces elastic fatigue after working for a long time, the position of the groove 505 engaged with the convex tooth 506 can be adjusted to move the connecting block three 504 forward, thereby further shortening the extension space of the spring 403, thereby achieving the effect of reducing the elastic fatigue of the spring 403.

[0038] Working principle: This embodiment provides a novel semi-trailer suspension device. During installation, the bow plate group 2 is clamped by the fixing plate 3 and the connecting block 1 302, and the fixing plate 3 and the connecting block 1 302 are firmly fixed by the threaded pin 301. Further, the bow plate group 2 is clamped by the clamping plate 1 502 and the clamping plate 2 503, and the clamping plate 1 502 and the clamping plate 2 503 are firmly fixed by bolts and nuts to complete the installation and fixation of the bow plate group 2. Further, the threaded rod at the top of the support column 303 is inserted into the hole of the frame longitudinal beam 1 and fixed on the threaded rod by nuts. The two groups of recessed blocks 601 are sleeved on the bottom of the frame longitudinal beam 1, and the side walls of the two groups of recessed blocks 601 and the side walls of the frame longitudinal beam 1 are penetrated by bolts. The bolts are fixed with nuts so that the two groups of recessed blocks 601 are installed on the frame longitudinal beam 1, completing the installation of the frame longitudinal beam 1. When the wheel connected to the connecting block 1 302 is subjected to bumps and vibrations, the vibration is transmitted to the bow plate group 2. The bow plate group 2 is firmly fixed and will not loosen. The bow plate group 2 itself will generate a reaction force to resist part of the vibration, and the remaining vibration is transmitted to the four damping rods 4, two of which are connected between the two groups of fixed blocks 1 304 and the connecting block 2 501, and the other two groups of damping rods 4 are connected between the two groups of connecting blocks 3 504 and the fixed block 2 602, so that the vibration brought by the bow plate group 2 is offset by the reaction force of the four groups of damping rods 4, thereby ensuring the stability of the frame longitudinal beam 1.

[0039] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A novel semi-trailer suspension device, characterized in that: It comprises a bow plate group (2), the bow plate group (2) is composed of a plurality of bow plates, a fixing plate (3) and a fixing assembly (5) are arranged on the top surface of the bow plate group (2), a connecting block (302) is arranged on the bottom of the bow plate group (2), a plurality of threaded pins (301) are passed through the fixing plate (3) from top to bottom, a support column (303) is connected to the top surface of the fixing plate (3), a frame longitudinal beam (1) is arranged on the top surface of the support column (303), and fixing blocks (304) are arranged on the symmetrical two side walls of the support column (303); The fixing assembly (5) comprises a connecting block 2 (501), a clamping plate 1 (502), a clamping plate 2 (503) and a connecting block 3 (504); the connecting block 2 (501) is sleeved with a damping rod (4) on its circumferential side wall; the damping rod (4) is provided with the fixing block 1 (304) on its top; the connecting block 3 (504) is provided on the top surface of the bow plate assembly (2); the connecting block 3 (504) is internally rotatably connected to the damping rod (4); the connecting block 3 (504) is provided with the clamping plate 1 (502) on its top surface; the clamping plate 2 (503) is provided on the bottom surface of the bow plate assembly (2); the connecting block 3 (504) is internally connected to the damping rod (4); The side wall of the frame longitudinal beam (1) is provided with a concave block (601), the bottom of the concave block (601) is provided with a second fixing block (602), the damping rod (4) is connected inside the second fixing block (602), and the bottom of the damping rod (4) connected to the second fixing block (602) is connected to the third connecting block (504).

2. The novel semi-trailer suspension device according to claim 1 is characterized in that: The top surface of the fixing plate (3) is in the shape of a semicircular protrusion, the threaded pin (301) is in a "U"-shaped structure, and the threaded pin (301) passes through the top surface of the fixing plate (3) and the top surface of the connecting block 1 (302).

3. The novel semi-trailer suspension device according to claim 1 is characterized in that: The bottom of the second connecting block (501) is connected to the bow plate group (2), and the second connecting block (501) is a cylindrical structure.

4. The novel semi-trailer suspension device according to claim 1 is characterized in that: The first clamping plate (502) and the second clamping plate (503) are fixedly connected by a plurality of bolts and nuts.

5. The novel semi-trailer suspension device according to claim 1 is characterized in that: The damping rod (4) comprises a buckle plate (401), the bottom of the buckle plate (401) is connected to a connecting rod (402), the bottom of the connecting rod (402) is connected to a connecting column (404), the bottom of the connecting column (404) is connected to a buckle head (405), and a spring (403) is sleeved on the circumferential side wall of the connecting rod (402).

6. The novel semi-trailer suspension device according to claim 5 is characterized in that: There are a plurality of damping rods (4), and the plurality of damping rods (4) are respectively engaged with the fixing block 1 (304) and the fixing block 2 (602) through the buckle plate (401), and the plurality of damping rods (4) are respectively engaged with the connecting block 2 (501) and the connecting block 3 (504) through the buckle head (405).

7. The novel semi-trailer suspension device according to claim 1 is characterized in that: The top surface of the connection block three (504) is provided with a plurality of grooves (505), and the plurality of grooves (505) are tooth-shaped and arranged in an array. The clamping plate one (502) is a rectangular plate structure, and the bottom surface of the clamping plate one (502) is provided with convex teeth (506) matching the grooves (505).

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