A traction auxiliary device for a commercial vehicle chassis

Abstract

The present invention discloses a traction auxiliary tool for a commercial vehicle chassis, comprising: a bottom plate cushion, an auxiliary tool main body, an up-and-down sliding device, a guide post, an upper roller sliding part, a lower roller sliding part and a compression spring; the bottom plate cushion is fixed on the auxiliary tool main body by bolts, the upper and lower ends of the guide post respectively pass through through holes preset in the auxiliary tool main body and are fixed on the auxiliary tool main body by screws, the guide post passes through through holes preset in the upper roller sliding part and the lower roller sliding part, the up-and-down sliding device is connected to the upper roller sliding part and the lower roller sliding part by screws, and the compression spring is installed between the lower roller sliding part and the auxiliary tool main body. The technical content disclosed by the present invention solves the problems of surface damage to the first cross beam of the chassis caused by existing auxiliary tools and short service life and high cost consumption of existing structure auxiliary tools.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and more specifically, to a traction auxiliary device for a commercial vehicle chassis. Background Art

[0002] After the general assembly of the existing commercial vehicle chassis, it still has no driving ability and is towed to the debugging area by a special chassis trailer after leaving the production line. The transfer is divided into three processes: starting - towing - unloading. Each time during chassis traction and unloading, there will be a relative movement in the up - down direction between the front cross - beam of the chassis and the trailer auxiliary device. Due to the very large extrusion force between the traction auxiliary device and the first cross - beam of the chassis, there will be severe friction between them, causing serious wear of the front cross - beam of the chassis.

[0003] Technical solutions of the prior art:

[0004] The prior art solution is to weld a tractor auxiliary device using profiles such as square tubes and angle steels. The traction auxiliary device is in the shape of a hook, with one end connected to the rear tail hook of the trailer and the other end connected to the first cross - beam of the chassis frame to tow the chassis. To prevent the first cross - beam from being scratched, cotton cloth and used automobile inner tubes are used to wrap the contact parts to avoid iron - to - iron collision.

[0005] Disadvantages of the prior art:

[0006] Each time during the unloading of the chassis in the prior art, there will be a relative movement in the up - down direction between the front cross - beam of the chassis and the trailer auxiliary device. Coupled with the very large extrusion force between the auxiliary device and the cross - beam during unloading, there will be severe friction between them, resulting in serious wear of the front cross - beam of the chassis. The use cycle of adding soft - material wrapping is short and needs to be replaced frequently.

[0007] Therefore, how to provide a traction auxiliary device for a commercial vehicle chassis has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0008] The object of the present invention is to provide a traction auxiliary device for a commercial vehicle chassis.

[0009] According to the present invention, there is provided a traction auxiliary device for a commercial vehicle chassis, including a bottom plate cushion, an auxiliary device main body, an up - and - down sliding device, a guide post, an upper roller sliding part, a lower roller sliding part, and a compression spring;

[0010] The bottom plate cushion is fixed on the auxiliary device main body by bolts. The upper and lower ends of the guide post respectively pass through the preset through - holes of the auxiliary device main body and are fixed on the auxiliary device main body by screws. The guide post passes through the preset through - holes on the upper roller sliding part and the lower roller sliding part. The up - and - down sliding device is connected to the upper roller sliding part and the lower roller sliding part by screws. The compression spring is installed between the lower roller sliding part and the auxiliary device main body.

[0011] Optionally, the auxiliary device further includes: a rotary shaft seat;

[0012] The rotating shaft seat is fixed to the lower side of the auxiliary tool body by bolts.

[0013] Optionally, the auxiliary tool further includes: a pin;

[0014] The pin is installed on the front side of the auxiliary tool body.

[0015] Optionally, the upper roller sliding part includes: an upper roller frame, rollers, roller pins and roller bearings;

[0016] The rollers, roller pins and roller bearings are matched and installed to form a rolling wheel, and the rolling wheel is fixed to the upper roller frame by screws;

[0017] The lower roller sliding part includes: a lower roller frame, rollers, roller pins and roller bearings;

[0018] The rollers, roller pins and roller bearings are matched and installed to form a rolling wheel, and the rolling wheel is fixed to the lower roller frame by screws.

[0019] Optionally, the guide post passes through the through holes preset on the upper roller frame and the lower roller frame and fits with the rollers in the upper roller sliding part and the lower roller sliding part;

[0020] The compression spring is installed between the lower roller frame and the lower part of the auxiliary tool body.

[0021] Optionally, the up-and-down sliding device includes: a slide plate backing plate and a slide plate body;

[0022] The slide plate body is connected to the upper roller frame and the lower roller frame by screws; the slide plate backing plate is fixed to the slide plate body by screws.

[0023] Optionally, the upper part of the auxiliary tool body forms an angle of 75° with the horizontal plane.

[0024] Optionally, the guide post, rollers, roller pins and roller bearings are all installed in a left-right symmetric pairwise combination mode;

[0025] The rollers are distributed in groups of two on the front and back sides of the guide post.

[0026] According to the technical content disclosed in the present invention, the following beneficial effects are achieved: the problems of surface damage to the first cross beam of the chassis caused by the existing auxiliary tool and the short service life and high cost of the existing structure auxiliary tool are solved.

[0027] Other features and advantages of the present invention will become clear from the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. Description of the Drawings

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0029] Figure 1 It is a general layout drawing of a traction auxiliary tool for a commercial vehicle chassis provided according to an embodiment;

[0030] Figure 2 It is a front view of a traction auxiliary tool for a commercial vehicle chassis;

[0031] Figure 3 It is a schematic diagram of the auxiliary tool main body;

[0032] Figure 4 It is a schematic diagram of the working state of a traction auxiliary tool for a commercial vehicle chassis;

[0033] Figure 5 It is a schematic diagram of the angle between the auxiliary tool main body and the horizontal plane.

[0034] Explanation of reference numerals: 1 - Rotary shaft seat, 2 - Bottom plate cushion, 3 - Auxiliary tool main body, 4 - Slide plate cushion, 5 - Slide plate main body, 6 - Guide post, 7 - Upper roller frame, 8 - Lower roller frame, 9 - Roller, 10 - Pin, 11 - Roller pin shaft, 12 - Roller bearing, 13 - Compression spring, 14 - First cross beam of the chassis. Detailed description of the specific implementation

[0035] Now, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0036] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on the present invention or its application or use.

[0037] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification.

[0038] In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0039] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0040] According to the present invention, as Figures 1 to 3As shown in the figure, a traction auxiliary device for a commercial vehicle chassis is provided, including a bottom plate pad 2, an auxiliary device main body 3, an up-and-down sliding device, a guide post 6, an upper roller sliding part, a lower roller sliding part, and a compression spring 13; the bottom plate pad 2 is fixed on the auxiliary device main body 3 by bolts, the upper and lower ends of the guide post 6 respectively pass through the preset through holes of the auxiliary device main body 3 and are fixed on the auxiliary device main body 3 by screws, the guide post 6 passes through the preset through holes on the upper roller sliding part and the lower roller sliding part, the up-and-down sliding device is connected to the upper roller sliding part and the lower roller sliding part by screws, and the compression spring 13 is installed between the lower roller sliding part and the auxiliary device main body 3.

[0041] In some embodiments, the auxiliary device further includes: a rotary shaft seat 1; the rotary shaft seat 1 is fixed on the lower side of the auxiliary device main body 3 by bolts.

[0042] The auxiliary device further includes: a pin 10; the pin 10 is installed on the front side of the auxiliary device main body 3. The upper roller sliding part includes: an upper roller frame 7, rollers 9, roller pins 11, and roller bearings 12; the rollers 9, roller pins 11, and roller bearings 12 are matched and installed to form a rolling wheel, and the rolling wheel is fixed on the upper roller frame 7 by screws; the lower roller sliding part includes: a lower roller frame 8, rollers 9, roller pins 11, and roller bearings 12; the rollers 9, roller pins 11, and roller bearings 12 are matched and installed to form a rolling wheel, and the rolling wheel is fixed on the lower roller frame 8 by screws.

[0043] Specifically, the guide post 6 passes through the preset through holes on the upper roller frame 7 and the lower roller frame 8 and is in contact with the rollers 9 in the upper roller sliding part and the lower roller sliding part; the compression spring 13 is installed between the lower roller frame 8 and the lower part of the auxiliary device main body 3. The up-and-down sliding device includes: a slide plate pad 4 and a slide plate main body 5; the slide plate main body 5 is connected to the upper roller frame 7 and the lower roller frame 8 by screws; the slide plate pad 4 is fixed on the slide plate main body 5 by screws.

[0044] As Figure 5 shown, the upper structure of the auxiliary device main body 3 forms an angle of 75° with the horizontal plane.

[0045] In some embodiments, the guide post 6, rollers 9, roller pins 11, and roller bearings 12 are all installed in a left-right symmetric two-by-two combination mode; the rollers 9 are distributed in groups of two on the front and rear sides of the guide post.

[0046] The working process is as follows:

[0047] During the installation and use process, as Figure 4 shown, the auxiliary device is in contact with the first cross beam 14 of the chassis, thereby driving the entire chassis to move.

[0048] The auxiliary upper slide plate cushion 4 and the slide plate main body 5 are combined into an up-and-down sliding device, and a polyurethane protection material is installed on this device. When the first cross beam 14 of the chassis contacts the trailer auxiliary tool, since the auxiliary tool main body 3 is an upper structure with an angle of 75° with the horizontal plane, the up-and-down sliding device will descend together with the first cross beam 14 of the chassis until the first cross beam 14 of the chassis is placed on the bottom plate cushion 2, and then the up-and-down sliding device can automatically reset under the action of the compression spring 13. Repeating this way can avoid the frequent contact and friction between the first cross beam 14 of the chassis and the trailer auxiliary tool, and avoid damage to the chassis surface.

[0049] The said pin 10 and the rotary shaft seat 1 are respectively connected to different trailer tail hooks.

[0050] In summary, the problems of surface damage to the first cross beam of the chassis caused by the existing auxiliary tool and the short service life and high cost of the existing structure auxiliary tool are solved.

[0051] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A traction auxiliary device for a commercial vehicle chassis, characterized in that, it includes: a bottom plate spacer, an auxiliary device main body, an up-and-down sliding device, a guide post, an upper roller sliding part, a lower roller sliding part and a compression spring; The bottom plate spacer is fixed on the auxiliary device main body by bolts. The upper and lower ends of the guide post respectively pass through the preset through holes of the auxiliary device main body and are fixed on the auxiliary device main body by screws. The guide post passes through the preset through holes on the upper roller sliding part and the lower roller sliding part. The up-and-down sliding device is connected to the upper roller sliding part and the lower roller sliding part by screws. The compression spring is installed between the lower roller sliding part and the auxiliary device main body; The upper roller sliding part includes: an upper roller frame; The lower roller sliding part includes: a lower roller frame; The up-and-down sliding device includes: a slide plate spacer and a slide plate main body; The slide plate main body is connected to the upper roller frame and the lower roller frame by screws; the slide plate spacer is fixed on the slide plate main body by screws.

2. The traction auxiliary device for a commercial vehicle chassis according to claim 1, characterized in that, the auxiliary device further includes: a rotating shaft seat; The rotating shaft seat is fixed on the lower side of the auxiliary device main body by bolts.

3. The traction auxiliary device for a commercial vehicle chassis according to claim 1, characterized in that, the auxiliary device further includes: a pin; The pin is installed on the front side of the auxiliary device main body.

4. The traction auxiliary device for a commercial vehicle chassis according to claim 1, characterized in that, the upper roller sliding part further includes: rollers, roller pins and roller bearings; The rollers, roller pins and roller bearings are matched and installed to form a rolling wheel, and the rolling wheel is fixed on the upper roller frame by screws; The lower roller sliding part further includes: rollers, roller pins and roller bearings; The rollers, roller pins and roller bearings are matched and installed to form a rolling wheel, and the rolling wheel is fixed on the lower roller frame by screws.

5. The traction auxiliary device for a commercial vehicle chassis according to claim 4, characterized in that, the guide post passes through the preset through holes on the upper roller frame and the lower roller frame and is in contact with the rollers in the upper roller sliding part and the lower roller sliding part; The compression spring is installed between the lower roller frame and the lower part of the auxiliary device main body.

6. The traction auxiliary device for a commercial vehicle chassis according to any one of claims 1 to 5, characterized in that, the upper structure of the auxiliary device main body forms an angle of 75° with the horizontal plane.

7. The traction auxiliary device for a commercial vehicle chassis according to claim 4, characterized in that, the guide post, rollers, roller pins and roller bearings are all installed in a left-right symmetric two-by-two combination mode; The rollers are distributed in groups of two on the front and rear sides of the guide post.

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