阅读说明：本技术 一种牵引车及其用于轨道交通车辆的牵车钩装置 (Tractor and car-towing hook device thereof for rail transit vehicle ) 是由 张勇 李高升 江华 王钢 王兵 朱波 雷科 李小川 于 2020-12-11 设计创作，主要内容包括：本发明公开了一种牵引车及其用于轨道交通车辆的牵车钩装置,用于连接牵引车和待转移车辆,其特征在于,包括：第一连接件(1),所述第一连接件(1)用于与所述牵引车相连；第二连接件(2),所述第二连接件(2)用于与所述待转移车辆相连；牵车杆,所述牵车杆一端铰接在所述第一连接件(1)上,另一端铰接在所述第二连接件(2)上。采用上述结构可实现牵引车和待转移车辆的连接,并且由于牵车杆的两端分别采用铰接,在待转移车辆与牵引车发生高度方向和水平转动时,可通过铰接实现转动,避免了牵车钩装置出现硬拉伤及脱钩的风险。(The invention discloses a tractor and a traction hook device thereof for rail transit vehicles, which are used for connecting the tractor and the vehicles to be transferred, and are characterized by comprising the following components: a first connecting piece (1), wherein the first connecting piece (1) is used for being connected with the tractor; the second connecting piece (2) is used for being connected with the vehicle to be transferred; one end of the traction rod is hinged to the first connecting piece (1), and the other end of the traction rod is hinged to the second connecting piece (2). Adopt above-mentioned structure can realize the tractor and treat the connection of shifting the vehicle to because the both ends of draw the car pole adopt articulated respectively, when treating that shift vehicle and tractor take place direction of height and horizontal rotation, the accessible is articulated to be realized rotating, has avoided the risk that the hard pull appears and has hurt and unhook in the hook device of leading.)

1. A coupler device for a rail transit vehicle for connecting a tractor and a vehicle to be transferred, comprising:

a first connecting piece (1), wherein the first connecting piece (1) is used for being connected with the tractor;

the second connecting piece (2) is used for being connected with the vehicle to be transferred;

one end of the traction rod is hinged to the first connecting piece (1), and the other end of the traction rod is hinged to the second connecting piece (2).

2. The tow hook device of claim 1, wherein the tow bar comprises:

the first traction rod (3), the first traction rod (3) is hinged with the first connecting piece (1);

the second traction rod (4) is hinged to the second connecting piece (2), and the first traction rod (3) is connected with the second traction rod (4) in an inserting mode and fixed through screws.

3. Tow hook device according to claim 2, characterized in that the first tow bar (3) and the first connection piece (1) and the second tow bar (4) and the second connection piece (2) are connected by means of a universal joint (5).

4. Tow hook device according to claim 2, wherein one of the first tow bar (3) and the second tow bar (4) has a step section and the other has a step hole that can be positioned in cooperation with the step section.

5. Tow hook device according to claim 4, characterized in that the first tow bar (3) has the table stage and the table stage is a three-stage step structure.

6. The tow hook device according to claim 4, wherein the step section is provided with a waist-shaped hole extending along the axial direction, and the side wall of the stepped hole is provided with a pin hole capable of being opposite to the waist-shaped hole.

7. Tow hook device according to claim 2, wherein the first tow bar (3) and the second tow bar (4) are connected by a spline fit.

8. Tow hook device according to any of the claims 1-7, wherein the fitting holes of the first (1) and second (2) connecting pieces are kidney-shaped holes.

9. Towing vehicle comprising a towing hook arrangement, characterized in that the towing hook arrangement is a towing hook arrangement for rail transit vehicles according to any of claims 1-8.

Technical Field

The invention relates to the technical field of urban rail transit vehicles, in particular to a tractor and a tractor hook device for the same.

Background

In the process of transferring the rail vehicle after the production is finished, a tractor is required to be used for transferring the vehicle. The mounting seat in the tractor hook of the existing tractor is connected with the connecting rod in a plug-in mode, so that the mounting seat and the connecting rod are fixed, and the tractor is connected with a transported vehicle. However, when the tractor and the transported vehicle vibrate in the height direction by adopting a fixed connection mode, the tractor hook is worn and deformed, and meanwhile, the tractor hook is high in replacement frequency due to steering abnormal wear, and the use cost is high.

Therefore, how to provide a car-pulling hook device for a rail transit vehicle, which reduces wear and reduces use cost is a problem to be solved urgently by the people in the technical field.

Disclosure of Invention

In view of this, the invention provides a train-pulling hook device of a rail transit vehicle, which reduces abrasion and reduces use cost. The invention also provides a tractor with the train traction hook device of the rail transit vehicle.

In order to achieve the purpose, the invention provides the following technical scheme:

a coupler apparatus for a rail transit vehicle for connecting a towing vehicle and a vehicle to be transferred, comprising:

the first connecting piece is used for being connected with the tractor;

the second connecting piece is used for being connected with the vehicle to be transferred;

one end of the traction rod is hinged to the first connecting piece, and the other end of the traction rod is hinged to the second connecting piece.

Preferably, in the above-described car haul hook device, the car haul rod includes:

the first traction rod is hinged with the first connecting piece;

the second traction rod is hinged to the second connecting piece, and the first traction rod is connected with the second traction rod in an inserting mode and fixed through screws.

Preferably, in the above car-pulling hook device, the first car-pulling rod and the first connecting piece and the second car-pulling rod and the second connecting piece are connected by a universal joint.

Preferably, in the above-described car coupler apparatus, one of the first and second car levers has a step section, and the other has a step hole that can be positioned and fitted to the step section.

Preferably, in the above car haul hook device, the first car haul rod has the platform stage, and the platform stage has a three-step structure.

Preferably, in the above-described car-pulling hook device, the platform step has a kidney-shaped hole extending in the axial direction, and a side wall of the stepped hole has a pin hole capable of facing the kidney-shaped hole.

Preferably, in the above car-pulling hook device, the first car-pulling rod and the second car-pulling rod are connected by spline fitting.

Preferably, in the above-described car-pulling hook device, the fitting holes of the first connecting piece and the second connecting piece are both kidney-shaped holes.

A towing vehicle comprises a car traction hook device, wherein the car traction hook device is the car traction hook device for the rail transit vehicle.

The car traction hook device for the rail transit vehicle can realize the connection between the tractor and the vehicle to be transferred by adopting the structure, and the two ends of the car traction rod are respectively hinged, so that when the vehicle to be transferred and the tractor rotate in the height direction and horizontally, the rotation can be realized by hinging, and the risk of hard pull and unhooking of the car traction hook device is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a front view of a towing hook apparatus for a rail transit vehicle disclosed in an embodiment of the present invention;

FIG. 2 is a side view of a first connector disclosed in an embodiment of the present invention;

fig. 3 is a side view of a second connector disclosed in an embodiment of the present invention.

Detailed Description

The invention discloses a car-pulling hook device of a rail transit vehicle, which reduces abrasion and reduces use cost. The invention also discloses a tractor with the train traction hook device of the rail transit vehicle.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-3, the present application also discloses a car pulling hook device for rail transit vehicles, which is used for connecting a tractor and a vehicle to be transferred and comprises a first connecting piece 1, a second connecting piece 2 and a car pulling rod. The first connecting piece 1 is used for being connected with a tractor, the second connecting piece 2 is used for being connected with a vehicle to be transferred, one end of the tractor rod is hinged to the first connecting piece 1, and the other end of the tractor rod is hinged to the second connecting piece 2. Adopt above-mentioned structure can realize the tractor and treat the connection of shifting the vehicle to because the both ends of draw the car pole adopt articulated respectively, when treating that shift vehicle and tractor take place direction of height and horizontal rotation, the accessible is articulated to be realized rotating, has avoided the risk that the hard pull appears and has hurt and unhook in the hook device of leading.

In a specific embodiment, the above-mentioned car pulling rod includes: the first traction bar 3 is hinged with the first connecting piece 1, the second traction bar 4 is hinged with the second connecting piece 2, and the first traction bar 3 and the second traction bar 4 are connected in an inserting mode and fixed through screws. The two car pulling rods are arranged, so that the connection between the car pulling hook device and the tractor and the car to be transferred can be facilitated. When the device is used, the first tractor rod 3 can be hinged with the first connecting piece 1, and then the second tractor rod 4 can be hinged with the second connecting piece 2, so that the positions of the tractor and a vehicle to be transferred do not need to be adjusted in the installation process. After assembly, only the relative angle of the first and second tow bars 3, 4 need to be adjusted. In practice, in order to simplify the structure, the number of the traction bars is one, and during connection, only two ends of each traction bar are required to be connected with the first connecting piece 1 and the second connecting piece 2, and the strength of each traction bar can be ensured. It will be appreciated by those skilled in the art that the number and size of the tow bars may be selected as desired and within the scope of protection.

In a preferred embodiment, the first traction rod 3 and the first connecting member 1, and the second traction rod 4 and the second connecting member 2 are connected by a universal joint 5. The universal joint 5 is adopted to realize the adjustment of rotation in the height direction and the horizontal direction, the structure can increase the rotating space, the abrasion between the structures is avoided, and the working efficiency can be improved when the structure is installed and used.

In a specific embodiment, one of the first and second bars 3 and 4 has a step section, and the other has a step hole capable of being positioned and matched with the step section. By adopting the insertion and matching of the step hole and the platform stage, the accuracy of the connected angle can be ensured, and the influence on the strength requirement caused by the assembly inclination of the first traction rod 3 and the second traction rod 4 is avoided.

The first traction rod 3 in the application has the above stage, correspondingly, the second traction rod 4 is provided with a step hole, preferably, the stage is of a three-stage step structure and is of a structure which is gradually reduced along the length direction, and the three-stage step structure is matched with each other, so that the positioning area of the first traction rod 3 and the second traction rod 4 is increased, and the axis of the first traction rod 3 and the axis of the second traction rod 4 are enabled to be coincident after being assembled. The number and specific dimensions of the stage stages are not described in detail here and are within the scope of protection.

In a further embodiment, the stage has a kidney-shaped hole extending along the axial direction, and specifically, the side wall of the stepped hole has a pin hole capable of being opposite to the kidney-shaped hole. In the application, the assembly positions of the stage of the adjustable platform and the step hole of the waist-shaped hole are adopted, so that the overall length of the first traction rod 3 and the second traction rod 4 after assembly is changed, and the application range of the traction hook device is enlarged.

In practice, the first traction lever 3 and the second traction lever 4 may be connected by spline fitting. The spline fit connection can improve the circumferential connection stability of the first traction rod 3 and the second traction rod 4, the positioning accuracy of the first traction rod 3 and the second traction rod 4 is guaranteed, the contact area of the first traction rod 3 and the second traction rod during assembly is improved, and the axial line of the first traction rod and the second traction rod after assembly is prevented from deviating.

In order to adapt to mounting holes in different positions on a tractor and a vehicle to be transferred, the mounting holes of the first connecting piece 1 and the second connecting piece 2 disclosed in the application are all kidney-shaped holes, and the mounting positions of bolts can be adjusted by adopting the kidney-shaped holes so as to ensure that the kidney-shaped holes can be relatively assembled with the mounting holes.

In addition, this application has still disclosed a tractor, including the coupler device that leads, and concrete this coupler device that leads is the coupler that leads that discloses in the above-mentioned embodiment, therefore, the tractor that has this coupler that leads also has above-mentioned all technological effects, and the no longer repeated description herein.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.