Traction device for engineering truck

Abstract

The utility model discloses a traction device for an engineering truck, which belongs to the technical field of traction engineering trucks and can adjust the integral positions of two mounting seats so as to meet the integral traction requirements of semitrailers with different sizes and avoid the problems that the integral size of the traction device is single and the traction requirements of the semitrailers with different sizes cannot be met as much as possible. The overall practicability of the device is improved. The traction device for the engineering truck comprises a hinge seat, a traction rod is hinged to the hinge seat, a mounting seat is hinged to the end, away from the hinge seat, of the traction rod, a buffering assembly is mounted on the hinge seat, and an adjusting assembly is mounted at the middle section of the traction rod; the adjusting assembly comprises a supporting rod hinged to the traction rod, the end, away from the traction rod, of the supporting rod is hinged to an adjusting base, an adjusting lead screw penetrates through the middle section of the adjusting base, one end of the adjusting lead screw is rotationally embedded in the buffering assembly, and a rotary disc is fixed to the end, away from the buffering assembly, of the adjusting lead screw.

Description

Technical Field

[0001] The utility model belongs to the technical field of traction engineering vehicles, and in particular relates to a traction device for an engineering vehicle. Background Art

[0002] With the rapid development of the logistics and transportation industry, the performance and functionality requirements of semi-trailer traction engineering vehicles as important freight transport tools are increasing. Semi-trailers are important means of transportation due to their large load-bearing weight and long body. In order to ensure the driving performance of semi-trailers, traction devices are required to drive the semi-trailers to travel. Therefore, the traction device used for semi-trailers is an important transportation power equipment.

[0003] In order to ensure the overall stability of the frame, the existing traction devices for engineering vehicles are mostly assembled by welding. As a result, the overall width of the traction devices is mostly fixed, and the overall size of the device cannot be adjusted or replaced according to the overall width of the semi-trailer. This easily leads to poor overall practicality of the traction devices for engineering vehicles. Therefore, a traction device for engineering vehicles is needed to assist in solving this problem. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a traction device for an engineering vehicle, which can adjust the overall position of two mounting seats to adapt to the overall traction requirements of semi-trailers of different sizes, avoid the traction device having a single overall size and being unable to adapt to the traction requirements of semi-trailers of different sizes, and improve the overall practicality of the device.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides such a traction device for an engineering vehicle, which comprises an articulated seat, a traction rod is hingedly mounted on the articulated seat, a mounting seat is hingedly mounted on one end of the traction rod away from the articulated seat, a buffer assembly for auxiliary buffering is mounted on the articulated seat, and an adjustment assembly for auxiliary traction rod opening width adjustment is mounted at the middle section of the traction rod;

[0008] The adjustment assembly includes a support rod hingedly mounted on the traction rod, one end of the support rod away from the traction rod is hingedly mounted on the adjustment seat, an adjustment screw rod is installed through the middle section of the adjustment seat, one end of the adjustment screw rod is rotatably embedded in the buffer assembly, the adjustment seat and the adjustment screw rod are threadedly matched, and a turntable is fixed to the end of the adjustment screw rod away from the buffer assembly.

[0009] Furthermore, the buffer assembly includes a mounting plate and a supporting plate, connecting rods are installed at four corners of the mounting plate facing the supporting plate, the connecting rods and the supporting plate are positioned and fastened by bolts, a sliding rod is installed on the supporting plate, a limiting plate is fixed on one end of the sliding rod facing the mounting plate, a hanging ring is fixed on one end of the sliding rod away from the limiting plate, and a buffer spring is mounted on the sliding rod.

[0010] Furthermore, an anti-collision shell is fixedly mounted on the hinge seat, and an accommodating cavity for accommodating a buffer spring is provided inside the anti-collision shell, and the anti-collision shell and the limiting plate are matched to cover each other.

[0011] Furthermore, an embedding plate is sleeved and fixed on one end of the sliding rod facing the hanging ring, and an embedding groove for embedding the adjusting screw rod is formed on the mounting plate.

[0012] Furthermore, a mounting cavity is provided at a middle section of one end of the traction rod close to the mounting seat, and an auxiliary width length indicator is installed in the mounting cavity.

[0013] Furthermore, the length indicator comprises an articulated cylinder hingedly mounted at the traction rod, the interior of the articulated cylinder is hollow and has a cavity, a sliding rod is slidably arranged in the cavity, an ejection spring for assisting the length indicator to be pushed is installed in the cavity, and a scale plate is embedded and installed at the top of the sliding rod.

[0014] Furthermore, the scale plate is engraved with scale lines, and the zero scale of the scale lines is located at an end of the scale plate away from the ejection spring.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model adopts an adjustment component to rotate the turntable, which drives the adjustment screw to rotate, and the adjustment seat and the adjustment screw are threadedly matched, so that the adjustment seat as a whole moves along the adjustment screw, thereby driving the support rod as a whole to prop up, so that the support rod as a whole moves, and then driving the traction rod to expand outward during the movement of the support rod, so as to adjust the overall position of the two mounting seats, so as to adapt to the overall traction requirements of semi-trailers of different sizes, and try to avoid the overall size of the traction device being single and unable to adapt to the traction requirements of semi-trailers of different sizes, thereby improving the overall practicality of the device;

[0018] The utility model provides a length display. During the adjustment process, the traction rod pulls the articulated cylinder, thereby driving the sliding rod to extend as a whole, and effectively determines the overall distance between the two traction rods through the scale plate at the top of the sliding rod, thereby facilitating the effective determination of the distance between the two traction rods during the adjustment process, thereby ensuring smooth progress of subsequent work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 3 It is a longitudinal cross-sectional view of the length display of the utility model;

[0023] Figure 4 It is a longitudinal sectional view of the hinged seat of the utility model.

[0024] The markings in the accompanying drawings are: 1. articulated seat; 2. traction rod; 3. buffer assembly; 4. mounting plate; 41. connecting rod; 42. load-bearing plate; 5. limit plate; 51. hanging ring; 6. sliding rod; 61. embedded disk; 7. buffer spring; 8. anti-collision shell; 9. adjustment assembly; 10. support rod; 11. adjustment seat; 12. adjustment screw rod; 121. turntable; 13. length display; 14. articulated tube; 15. sliding rod; 151. scale plate; 16. ejection spring; 17. mounting seat. DETAILED DESCRIPTION

[0025] 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.

[0026] This specific embodiment is a traction device for an engineering vehicle, such as Figure 1 and Figure 2As shown, the traction device for the engineering vehicle includes an articulated seat 1, a traction rod 2 is hingedly installed on the articulated seat 1, a mounting seat 17 is hingedly installed on one end of the traction rod 2 away from the articulated seat 1, a buffer assembly 3 for auxiliary buffering is installed on the articulated seat 1, an adjustment assembly 9 for auxiliary adjustment of the opening width of the traction rod 2 is installed at the middle section of the traction rod 2, the adjustment assembly 9 includes a support rod 10 hingedly installed on the traction rod 2, one end of the support rod 10 away from the traction rod 2 is hingedly installed on the adjustment seat 11, an adjusting screw rod 12 is installed through the middle section of the adjustment seat 11, one end of the adjusting screw rod 12 is rotatably embedded in the buffer assembly 3, the adjusting seat 11 and the adjusting screw rod 12 are threadedly matched, and a turntable 121 is fixed to the end of the adjusting screw rod 12 away from the buffer assembly 3.

[0027] By setting the adjustment component 9, the turntable 121 is rotated, and the turntable 121 drives the adjusting screw 12 to rotate, and the adjusting seat 11 and the adjusting screw 12 are threadedly matched, so that the adjusting seat 11 moves along the adjusting screw 12 as a whole, thereby driving the support rod 10 to be propped up as a whole, so that the support rod 10 moves as a whole, and then in the process of the movement of the support rod 10, the traction rod 2 is driven to expand outward, thereby adjusting the overall position of the two mounting seats 17, so as to adapt to the overall traction requirements of semi-trailers of different sizes, and try to avoid the overall size of the traction device being single and unable to adapt to the traction requirements of semi-trailers of different sizes, thereby improving the overall practicality of the device.

[0028] Reference Figure 1 and Figure 3 As shown, a mounting cavity is provided at the middle section of one end of the traction rod 2 near the mounting seat 17, and an auxiliary width length indicator 13 is installed in the mounting cavity. The length indicator 13 includes an articulated tube 14 hingedly installed at the traction rod 2, and a cavity is provided in the hollow interior of the articulated tube 14, a slide rod 15 is slidably arranged in the cavity, an ejection spring 16 pushed by the auxiliary length indicator 13 is installed in the cavity, and a scale plate 151 is embedded and installed at the top of the slide rod 15.

[0029] By setting the length display 13, during the adjustment process, the traction rod 2 pulls the articulated tube 14, thereby driving the sliding rod 15 to extend as a whole, and the overall distance between the two traction rods 2 is effectively determined through the scale plate 151 at the top of the sliding rod 15, thereby facilitating the effective determination of the distance between the two traction rods 2 during the adjustment process, thereby ensuring smooth progress of subsequent work.

[0030] The scale plate 151 is engraved with scale lines, and the zero mark of the scale lines is located at the end of the scale plate 151 away from the ejection spring 16. The scale lines engraved thereon can facilitate the effective determination of the overall length of the extended end of the slide rod 15 after it moves, which is convenient for interpretation.

[0031] Reference Figure 1 and Figure 4As shown, the buffer assembly 3 includes a mounting plate 4 and a bearing plate 42, and connecting rods 41 are installed at the four corners of the mounting plate 4 facing the bearing plate 42. The connecting rods 41 and the bearing plate 42 are positioned and fastened by bolts. A sliding rod 6 is installed on the bearing plate 42, and an embedding disk 61 is fixed on the end of the sliding rod 6 facing the hanging ring 51. An embedding groove for embedding the adjusting screw 12 is opened on the mounting plate 4, and a limiting plate 5 is fixed on the end of the sliding rod 6 facing the mounting plate 4, and a hanging ring 51 is fixed on the end of the sliding rod 6 away from the limiting plate 5, and a buffer spring 7 is installed on the sliding rod 6.

[0032] By means of the buffer assembly 3, the hanging ring 51 pulls the sliding rod 6 when pulling, and the initial pulling force is effectively buffered under the action of the buffer spring 7, so as to avoid the situation that the overall pulling force of the traction connection is large due to the instantaneous pulling force of the tractor at the time of starting, causing the overall loosening or breaking of the connection, etc.

[0033] An anti-collision shell 8 is fixedly mounted on the above-mentioned hinge seat 1, and an accommodating cavity for accommodating the buffer spring 7 is opened inside the anti-collision shell 8. The anti-collision shell 8 and the limiting plate 5 are matched to cover each other. By setting the anti-collision shell 8, the buffer spring 7 can be accommodated during work, and the buffer spring 7 can be prevented from being damaged by the impact force when encountering a large pulling force.

[0034] Working principle:

[0035] When the overall width of the traction rod 2 needs to be adjusted, the turntable 121 is rotated, and the turntable 121 drives the adjusting screw 12 to rotate, and the adjusting seat 11 and the adjusting screw 12 are threadedly matched, so that the adjusting seat 11 moves along the adjusting screw 12 as a whole, thereby driving the support rod 10 to be propped up as a whole, so that the support rod 10 moves as a whole, and then drives the traction rod 2 to expand outward during the movement of the support rod 10, so as to adapt to the overall traction requirements of semi-trailers of different sizes. During the adjustment process, the traction rod 2 pulls the articulated cylinder 14, thereby driving the sliding rod 15 to extend as a whole, and the overall distance between the two traction rods 2 is effectively determined through the scale plate 151 at the top of the sliding rod 15.

[0036] During installation, the hanging ring 51 is installed at the corresponding position through the positioning pin. When pulling, the hanging ring 51 pulls the sliding rod 6 and effectively buffers the initial pulling force under the action of the buffer spring 7, so as to avoid the situation where the overall pulling force of the traction connection is large due to the instantaneous pulling force of the tractor at the time of starting, causing the overall loosening or breaking of the connection.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A traction device for an engineering vehicle, comprising an articulated seat (1), characterized in that: A traction rod (2) is hingedly mounted on the hinge seat (1); a mounting seat (17) is hingedly mounted on one end of the traction rod (2) away from the hinge seat (1); a buffer assembly (3) for assisting buffering is mounted on the hinge seat (1); and an adjustment assembly (9) for assisting in adjusting the opening width of the traction rod (2) is mounted at the middle section of the traction rod (2); The adjustment assembly (9) comprises a support rod (10) hingedly mounted on the traction rod (2); one end of the support rod (10) away from the traction rod (2) is hingedly mounted on an adjustment seat (11); an adjustment screw rod (12) is installed through the middle section of the adjustment seat (11); one end of the adjustment screw rod (12) is rotatably embedded in the buffer assembly (3); the adjustment seat (11) and the adjustment screw rod (12) are threadedly matched; and a rotating disk (121) is fixed to one end of the adjustment screw rod (12) away from the buffer assembly (3).

2. A traction device for an engineering vehicle according to claim 1, characterized in that: The buffer assembly (3) comprises a mounting plate (4) and a bearing plate (42); the mounting plate (4) is provided with connecting rods (41) at four corners on one side facing the bearing plate (42); the connecting rods (41) and the bearing plate (42) are positioned and fastened by bolts; a sliding rod (6) is installed on the bearing plate (42); a limiting plate (5) is fixed to one end of the sliding rod (6) facing the mounting plate (4); a hanging ring (51) is fixed to one end of the sliding rod (6) away from the limiting plate (5); and a buffer spring (7) is sleeved and installed on the sliding rod (6).

3. A traction device for an engineering vehicle according to claim 2, characterized in that: An anti-collision shell (8) is fixedly mounted on the hinge seat (1), and a receiving cavity for receiving a buffer spring (7) is provided inside the anti-collision shell (8). The anti-collision shell (8) and the limiting plate (5) are matched and covered.

4. A traction device for an engineering vehicle according to claim 2, characterized in that: An embedding plate (61) is sleeved and fixed on one end of the sliding rod (6) facing the hanging ring (51), and an embedding groove for embedding the adjusting screw rod (12) is provided on the mounting plate (4).

5. The traction device for an engineering vehicle according to claim 1, characterized in that: The traction rod (2) is provided with a mounting cavity at the middle section of one end close to the mounting seat (17), and an auxiliary width length indicator (13) is mounted in the mounting cavity.

6. A traction device for an engineering vehicle according to claim 5, characterized in that: The length indicator (13) comprises an articulated cylinder (14) hingedly mounted on the traction rod (2); the articulated cylinder (14) is hollow inside and has a cavity, a slide rod (15) is slidably arranged in the cavity, an ejection spring (16) is installed in the cavity to assist the length indicator (13) in pushing, and a scale plate (151) is embedded and mounted at the top of the slide rod (15).

7. A traction device for an engineering vehicle according to claim 6, characterized in that: The scale plate (151) is engraved with scale lines, and the zero mark of the scale lines is located at an end of the scale plate (151) away from the ejection spring (16).

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