Novel traction saddle connecting structure

Abstract

The utility model discloses a novel traction saddle connecting structure which comprises a traction saddle, semitrailer girders and a large scale, the traction saddle is installed on the semitrailer girders, the large scale is fixedly installed between the two adjacent semitrailer girders located below the traction saddle, and the large scale is relatively perpendicular to the semitrailer girders; the longitudinal section of the single semitrailer girder is in an I shape, the large scale is fixedly installed between an upper wing plate and a lower wing plate of the semitrailer girder, and reinforcing plates are fixedly installed on the upper end faces of the two ends of the large scale. A bottom support of the traction saddle is connected and installed on a semitrailer girder and a large scale through bolts, a plurality of limiting blocks are arranged on the periphery of the bottom support, and the limiting blocks are installed on the semitrailer girders on the corresponding sides respectively. The limiting device is simple in structure, the connecting position of the traction saddle and the semitrailer girder is fixed and limited through the limiting block, displacement of the traction saddle is effectively prevented, loosening and falling of a traction saddle connecting bolt are avoided, and the safety of the traction saddle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of semitrailer traction, in particular to a novel traction saddle connection structure. Background Art

[0002] The development and growth of the transportation industry, with the development of bulk cargo transportation and container transportation being the most prominent, has promoted the development of semi-trailer related industries. Semi-trailers are increasingly widely used as a cargo tractor with large load and high carrying capacity. The traction saddle is a load-bearing component used by this type of cargo tractor to tow or disconnect the semi-trailer. It belongs to the chassis component and generally has several models such as 50mm and 90mm. It has the function of quickly engaging and locking with the semi-trailer traction pin through a locking mechanism, and can transmit horizontal and vertical forces between the semi-trailer tractor and the semi-trailer. In the prior art, the installation method of the traction saddle is to directly connect with bolts, but in the actual operation of the semi-trailer, there is often a gap between the bolts and the vehicle in the traditional bolt structure. The traction saddle will be displaced due to the traction movement and mechanical vibration of the vehicle, resulting in the loosening and falling off of the bolts, thereby aggravating the wear and even detachment of the traction saddle, thereby affecting the overall service life of the traction saddle and posing a transportation hazard. Utility Model Content

[0003] The purpose of the utility model is to solve the deficiencies of the above-mentioned prior art, restrain the displacement of the traction saddle, reduce the loosening of the bolts, and avoid the wear and separation of the traction saddle, so as to provide a new traction saddle connection structure.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a new type of traction saddle connection structure, including a traction saddle, a semi-trailer beam and a large scale, the traction saddle is installed on the semi-trailer beam, and multiple large scales are fixedly installed between two adjacent semi-trailer beams located below the traction saddle, all of which are relatively perpendicular to the semi-trailer beam; the longitudinal section of a single semi-trailer beam is I-shaped, the large scale is fixedly installed between the upper wing plate and the lower wing plate of the semi-trailer beam, and the upper end surfaces of both ends of the large scale are fixedly installed with reinforcement plates; the bottom support of the traction saddle is installed on the semi-trailer beam and the large scale by bolt connection, and multiple limit blocks are provided around the bottom support in the traction saddle, and the multiple limit blocks are respectively installed on the semi-trailer beam on the corresponding side.

[0005] Furthermore, the reinforcing plate is welded and fixed to the upper end surface of the scale, the upper surface of the reinforcing plate is flush with the upper surface of the upper wing plate in the semi-trailer beam, and is welded and fixed to the upper wing plate.

[0006] Furthermore, connecting plates are fixed at the four feet of the bottom support of the traction saddle, and each connecting plate spans the semi-trailer beam and the reinforcement plate, and is connected and fixed by multiple bolts that pass through the semi-trailer beam, the reinforcement plate, and the scale.

[0007] Furthermore, the cross-section of the reinforcement plate is larger than the area of ​​the connecting plate at the bottom of the traction saddle.

[0008] Furthermore, there are four limit blocks in total, all of which are L-shaped structures and are welded and fixed on two semi-trailer beams respectively, two by two facing each other, and together surround the installation area of ​​the bottom support in the traction saddle to limit its fixed position.

[0009] As another optimized technical solution of the utility model, there are four limit blocks in total, and the longitudinal cross-section of each limit block is a horizontal U-shape, which is clamped and installed on the upper wing plate of the semi-trailer beam. The bottom surface of the upper wing plate is fixedly installed with a slide groove equal to the width of the limit block, and the lower support arm of the limit block is slidably installed in the slide groove, and its sliding direction is perpendicular to the semi-trailer beam. The upper support arm of the limit block is L-shaped, and the four limit blocks are opposite to each other and are respectively located at the outer periphery of the four legs of the bottom support in the traction saddle, forming relative limitation for the traction saddle.

[0010] Furthermore, a bolt hole is provided on the side wall of the slide groove, and a matching fastening bolt is installed inside, and the inner end of the fastening bolt can lock and fix the lower arm of the limit block.

[0011] Furthermore, a bolt hole is provided on the lower support arm of the limit block, and a fastening bolt adapted thereto is installed inside the bolt hole. The fastening bolt can be tightened against the upper wing plate of the semi-trailer beam to lock and fix the limit block.

[0012] Furthermore, the large scale is made of U-shaped channel steel, and two adjacent large scales are fixedly installed back to back, and a plurality of through holes arranged at equal intervals are provided on the vertical wall.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure, and the connection between the traction saddle and the semi-trailer beam is fixed and limited by the limit block, which can effectively prevent the traction saddle from being displaced, avoids the loosening and falling off of the connecting bolts of the traction saddle, prolongs the service life of the traction saddle, and improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is an isometric view of the structure of the utility model;

[0016] Figure 3 for Figure 2A magnified view of part A;

[0017] Figure 4 It is a structural schematic diagram of the large scale and the reinforcement plate in the utility model;

[0018] In the figure: 1, semi-trailer beam, 2, traction saddle, 3, large scale, 4, reinforcement plate, 5, limit block, 11, upper wing plate, 21, bottom support, 22, connecting plate, 31, through hole. DETAILED DESCRIPTION

[0019] It should be noted that, in the description of the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "outside", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various components in the present invention, and do not specifically mean that any component in the present invention must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as a limitation on the present invention.

[0020] In addition, in the description of the present invention, 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; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings:

[0022] Embodiment 1,

[0023] like Figures 1 to 4As shown, a new type of traction saddle connection structure is arranged on the frame of a semi-trailer to facilitate the fixed connection between the traction saddle and the semi-trailer. The traction saddle is used for traction connection or disconnection between a cargo tractor and a semi-trailer, and between semi-trailers. This novel traction saddle connection structure includes a traction saddle 2, a semi-trailer beam 1 and a large scale 3, wherein the semi-trailer beam 1 is the main basic component of the semi-trailer, providing support, installation, load-bearing and other functions for the entire vehicle. Two semi-trailer beams 1 are usually symmetrical on the left and right sides of the vehicle body, running through the entire semi-trailer body. The longitudinal section of each semi-trailer beam 1 is I-shaped, including an upper wing plate 11, a lower wing plate and a vertical beam therebetween; the traction saddle 2 is fixedly installed above the two semi-trailer beams 1, located in the connection support area of ​​the entire semi-trailer, and above the support for installing the rear wheels; between the two semi-trailer beams 1 located below the installation position of the traction saddle 2, at least two large scales 3 are fixedly installed, both of which are relatively perpendicular to the semi-trailer beams 1. The large scale 3 is made of U-shaped channel steel, and two large scales 3 are arranged back to back. The upper surfaces of both ends of the large scale 3 are welded and fixed with reinforcement plates 4. The two ends of the large scale 3 are respectively welded and fixed between the upper wing plate 11 and the lower wing plate in the semi-trailer beam 1, and the outer end side of the reinforcement plate 4 is welded and fixed to the inner side of the upper wing plate 11 in the semi-trailer beam 1. The upper surface of the reinforcement plate 4 is flush with the top surface of the semi-trailer beam 1, so that the large scale 3, the reinforcement plate 4, the upper wing plate 11 of the semi-trailer beam, and the traction saddle 2 can be tightly connected; bolt holes are provided on the upper wing plate 11 of the semi-trailer beam 1 and the reinforcement plate 4 (penetrating downwardly through the upper plate of the large scale 3) for bolting the traction saddle 2. The bottom support 21 of the traction saddle 2 is provided with two, and a connecting plate 22 is respectively provided at the four feet of the bottom, which is fixed and integrally formed with the bottom support 21 on the corresponding side, and each connecting plate 22 spans the semi-trailer beam 1 and the reinforcement plate 4 on the scale 3, and is fixedly connected with them by bolts. Four limit blocks 5 are welded and fixed on the top surface of the two semi-trailer beams 1, two on one side, and arranged oppositely; the cross section of the limit block 5 is L-shaped, and its corner is just engaged with the outer corner position of the connecting plate 22. The four limit blocks 5 surround the bottom support 21 of the traction saddle 2 in a fixed position to prevent it from moving forward and backward due to the traction action of the semi-trailer, causing the connecting bolts to loosen, and avoid wear and even falling off.

[0024] A further optimized technical solution is that the cross-sectional area of ​​the reinforcement plate 4 is larger than the size of the connecting plate 22, which ensures that the traction saddle connection structure is evenly stressed while improving the structural strength of the traction saddle connection structure; a plurality of through holes 31 are equidistantly provided on the vertical wall of the large scale 3 to reduce the resonance between the semi-trailer beams 1.

[0025] Embodiment 2,

[0026] A novel traction saddle connection structure includes a traction saddle 2, a semitrailer beam 1 and a large scale 3. Its overall structural features are generally consistent with the technical solution described in the above-mentioned embodiment 1. The difference between it and embodiment 1 lies in that: four limit blocks are arranged on the semitrailer beam 1, and the longitudinal section of each limit block is a horizontal U-shaped structure, which is clamped and installed on the upper wing plate 11 of the semitrailer beam 1 on the corresponding side from the outside; the cross-section of the upper support arm in the limit block is L-shaped, and the four limit blocks are respectively slidably installed on the outside of the four feet of the bottom support 21 in the traction saddle 2, and the corners of the upper support arm can be just engaged with the outer corner positions of the four connecting plates 22, respectively, to limit the bottom support 21 to its installation position to prevent it from moving forward and backward. Corresponding to the installation position of the limit block, a slide groove is fixedly installed on the bottom surface of the upper wing plate 11 in the semi-trailer beam 1. The sliding direction of the slide groove is perpendicular to the vertical beam in the semi-trailer beam 1. Its setting width is equal to the width of the lower arm of the limit block. The lower arm of the limit block is slidably installed in the corresponding slide groove, so that the limit block can only slide left and right relative to the semi-trailer beam 1, but cannot move forward and backward, thereby realizing the limit of the traction saddle 2. A bolt hole is provided on one side wall of the slide groove, and a fastening bolt is adapted to be installed inside. The inner end of the fastening bolt can be pressed against the lower arm of the limit block to lock and fix it to prevent relative sliding between it and the slide groove. When the upper arm of the limit block is engaged with the bottom support 21 of the traction saddle 2, the fastening bolt is tightened to complete the fixation of the limit block, thereby completing the limit and stability of the traction saddle 2 to avoid forward and backward displacement.

[0027] Embodiment 3,

[0028] A novel traction saddle connection structure includes a traction saddle 2, a semi-trailer beam 1 and a large scale 3. Its overall structural features are generally consistent with the technical solution described in the above-mentioned embodiment 2. The difference between it and embodiment 2 is that: a bolt hole is provided on the lower arm of the limit block, and a fastening bolt adapted thereto is installed inside. The inner end of the fastening bolt can be pressed against the bottom surface of the upper wing plate 11 in the semi-trailer beam 1. When the upper arm of the limit block is engaged with the bottom support 21 of the traction saddle 2, the fastening bolt is tightened to lock and fix the limit block to prevent relative sliding between it and the slide groove, thereby completing the limit and stabilization of the bottom support of the traction saddle 2 and avoiding the loosening of the connecting bolts caused by its front and rear displacement.

[0029] The relevant technical features that have not been described or mentioned in detail in the above embodiments can be realized by adopting or referring to the relevant technical solutions in the prior art. The structure of the traction saddle 2 can adopt the structural dimensions known in the prior art according to actual needs.

[0030] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A new type of traction saddle connection structure, characterized in that: It includes a traction saddle, a semitrailer beam and a large scale. The traction saddle is installed on the semitrailer beam, and multiple large scales are fixedly installed between two adjacent semitrailer beams located below the traction saddle, all of which are relatively perpendicular to the semitrailer beam; the longitudinal section of a single semitrailer beam is I-shaped, the large scale is fixedly installed between the upper wing plate and the lower wing plate of the semitrailer beam, and the upper end surfaces of both ends of the large scale are fixedly installed with reinforcement plates; the bottom support of the traction saddle is installed on the semitrailer beam and the large scale by bolt connection, and multiple limit blocks are arranged around the bottom support in the traction saddle, and the multiple limit blocks are respectively installed on the semitrailer beams on the corresponding sides.

2. A novel traction saddle connection structure according to claim 1, characterized in that: The reinforcing plate is welded and fixed to the upper end surface of the scale, the upper surface of the reinforcing plate is flush with the upper surface of the upper wing plate in the semi-trailer beam, and is welded and fixed to the upper wing plate.

3. A new type traction saddle connection structure according to claim 2, characterized in that: The four feet of the bottom support of the traction saddle are all fixed with connecting plates, and each connecting plate spans across the semi-trailer beam and the reinforcement plate, and is connected and fixed by multiple bolts passing through the semi-trailer beam, the reinforcement plate, and the scale.

4. A new type traction saddle connection structure according to claim 3, characterized in that: The cross section of the reinforcement plate is larger than the area of ​​the connecting plate at the bottom of the traction saddle.

5. A novel traction saddle connection structure according to claim 1, characterized in that: There are four limit blocks in total, all of which are L-shaped structures and are welded and fixed on two semi-trailer beams respectively, two by two facing each other, and together surround the installation area of ​​the bottom support in the traction saddle to limit its fixed position.

6. A novel traction saddle connection structure according to claim 1, characterized in that: There are four limit blocks in total, and the longitudinal section of each limit block is a horizontal U-shape, and is clamped and installed on the upper wing plate of the semi-trailer beam. The bottom surface of the upper wing plate is fixedly installed with a slide groove equal to the width of the limit block. The lower support arm of the limit block is slidably installed in the slide groove, and its sliding direction is perpendicular to the semi-trailer beam. The upper support arm of the limit block is L-shaped. The four limit blocks are opposite to each other and are respectively located at the outer periphery of the four legs of the bottom support in the traction saddle, forming a relative limit for the traction saddle.

7. A new type traction saddle connection structure according to claim 6, characterized in that: The side wall of the slide groove is provided with a bolt hole, and a matching fastening bolt is installed inside, and the inner end of the fastening bolt can lock and fix the lower support arm of the limit block.

8. A novel traction saddle connection structure according to claim 6, characterized in that: The lower support arm of the limit block is provided with a bolt hole, and a fastening bolt adapted thereto is installed inside the bolt hole. The fastening bolt can be tightened against the upper wing plate of the semi-trailer beam to lock and fix the limit block.

9. A new type traction saddle connection structure according to claim 1, characterized in that: The large scale is made of U-shaped channel steel, and two adjacent large scales are installed back to back, and a plurality of through holes arranged at equal intervals are provided on the vertical wall thereof.

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