A train car puller arm

Abstract

The train pulling arm of the invention comprises a pulling arm main body, a pulling hook assembly for hooking a train, a fixing seat arranged at one end of the pulling arm main body, a notch on the fixing seat for abutting a connecting rod device, a connecting rib plate arranged at the lower part of the pulling hook assembly, a first hinge hole and a second hinge hole arranged on the connecting rib, the upper end of the connecting rod device is hinged with the connecting rib plate through the first hinge hole, the lower end is hinged with the pulling arm main body through a third hinge hole arranged on the pulling arm main body, and the rotation movement of the connecting rod device with the third hinge hole as the axis can realize the lifting and lowering of the pulling hook assembly, thereby reducing the height of the whole pulling hook assembly, effectively saving space, and facilitating the movement or storage of the pulling equipment.

Description

Technical Field

[0001] This invention relates to the field of train traction equipment technology, and in particular to a train traction arm. Background Technology

[0002] With the continuous increase in my country's railway freight volume, the frequency of train traction and relocation is also increasing under various operating environments. Currently, existing technologies require a coupling and uncoupling process for traction of both loaded and empty cars, with the coupler fixedly connected at the front end of the traction arm. When the traction equipment is in operation, the coupler assembly needs to be connected to the car. However, when the traction equipment is not in operation, the fixed installation of the coupler assembly results in a high space occupation and inconveniences in moving and storing the traction equipment. The fixed traction arm occupies space along the vertical direction of the train track, which is not conducive to using new traction equipment for train traction. This invention aims to solve the above problems by further reducing the space occupied by the traction arm and coupler assembly through a completely new design. Summary of the Invention

[0003] The purpose of this invention is to provide a train traction arm to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a train traction arm, comprising: a traction arm body for hooking a train traction coupler assembly; a fixed seat disposed at one end of the traction arm body; the fixed seat having a slot for a connecting rod device to abut; a connecting rib plate disposed at the lower part of the traction coupler assembly, the connecting rib plate having a first hinge hole and a second hinge hole; the upper end of the connecting rod device is hinged to the connecting rib plate through the first hinge hole, and its lower end is hinged to the traction arm body through a third hinge hole disposed on the traction arm body; the traction coupler assembly can be raised and lowered by the rotational movement of the connecting rod device around the third hinge hole as an axis.

[0005] Furthermore, a hydraulic cylinder is also provided at the bottom of the tractor arm body, and the hydraulic cylinder is connected to the connecting rod device via a chain.

[0006] Furthermore, it also includes a support rod, the upper end of which is hinged to the connecting rib at the second hinge hole, and the lower end of which is hinged to the tractor arm body at the fourth hinge hole.

[0007] Furthermore, the rotational motion of the connecting rod device around the third hinge hole is formed by the hydraulic cylinder driving the chain to extend or shorten.

[0008] Furthermore, the connection between the tractor hook assembly and the tractor arm body is provided by a quadrilateral structure formed by the connecting rod device, the connecting rib, the tractor arm body, and the support rod.

[0009] Furthermore, one end of the tractor arm body is connected to a telescopic arm, and the other end of the telescopic arm is sleeved in the fixed arm body, and the telescopic arm can extend and retract within the fixed arm body.

[0010] The technical effects and advantages of this invention are as follows:

[0011] (1) The present invention uses a chain to pull up or lower the connecting rod device. When the connecting rod device is pulled up and abuts against the slot of the fixed seat, the traction hook assembly is in working state. When the chain lowers the connecting rod device, the traction hook assembly will fall on the traction arm body by its own gravity, reducing the height of the overall traction hook assembly. This can effectively save space and facilitate the movement or storage of the traction equipment.

[0012] (2) This invention utilizes a quadrilateral structure composed of a connecting rod device, connecting ribs, support rods, and part of the traction arm body to provide support for the traction hook assembly. The overall stress structure is distributed on the connecting assembly, which facilitates later maintenance and replacement.

[0013] (3) By setting up a telescopic arm, the present invention can pull train carriages at different positions. At the same time, the pulling equipment can also carry out construction work without entering the train track by telescopic pulling arm.

[0014] (4) The present invention also provides a locking block at the slot of the fixed seat. When the connecting rod device comes into contact with the slot, the locking block will limit and lock the connecting rod device, further enhancing the structural strength and stability of the overall component. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the present invention during operation;

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of a second embodiment of the control component of the present invention;

[0019] The following are the reference numerals in the figure: 1. Main body of the tractor arm; 2. Tractor hook assembly; 3. Linkage device; 4. Chain; 5. Hydraulic cylinder; 6. Fixed seat; 7. Support rod; 10. Groove; 12. Connecting rib; 101. First hinge hole; 202. Second hinge hole; 303. Third hinge hole; 404. Fourth hinge hole; 66. Telescopic arm; 68. Fixed arm body. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this patent, it is important to understand the meanings of the terms "center," "upper," "lower," "front," and "rear."

[0022] The terms "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this patent and for simplification, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent. The terms "installation" and "setting" are also relevant.

[0023] Terms such as “connection,” “fixation,” and “screw-on” should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly defined, those skilled in the art can understand the specific meaning of the above terms in this patent based on the specific circumstances. (See attached) Figure 1-2As shown, a train traction arm of the present invention includes a traction arm body 1 for hooking a train traction coupler assembly 2; a fixed seat 6 disposed at one end of the traction arm body 1; the fixed seat 6 is provided with a slot 10 for a connecting rod device 3 to abut; a connecting rib plate 12 is provided at the lower part of the traction coupler assembly 2, and the connecting rib plate 12 is provided with a first hinge hole 101 and a second hinge hole 202; the upper end of the connecting rod device 3 is hinged to the connecting rib plate through the first hinge hole 101, and its lower end is hinged to the traction arm body 1 through a third hinge hole 303 disposed on the traction arm body 1. The characteristic feature is that the traction coupler assembly 2 can be raised and lowered by the rotational movement of the connecting rod device 3 around the third hinge hole 303. The traction arm body 1 is an approximately U-shaped steel structure, mainly transmitting the traction force of the traction equipment to the traction coupler assembly. Its specific design dimensions can be designed according to the specific operational requirements and are not limited here. The main function of the traction coupler assembly 2 is to hook the train or carriage to be towed, and then transfer the traction force transmitted by the traction arm body 1 to the train or carriage, thereby moving or fixing it. The fixed seat 6 is provided to limit the movement of the traction coupler assembly 2 during operation, and also to install other devices on the fixed seat 6 to increase the overall structural strength of the traction coupler assembly when towing a train or carriage. The fixed seat 6 is an approximately cuboid structure with a slot 10 on one side. The slot 10 is a cuboid structure, and the width of the opening can accommodate the connecting rod device 3 to abut. The depth of the slot 10 is similar to the thickness of the connecting rod device 3, so that after the connecting rod device 3 abuts the slot 10, a locking device (not shown in the figure) can be installed to further lock and limit the connecting rod device 3. The connecting rib 12 is provided below the traction coupler assembly 2. It has a first hinge hole 101 and a second hinge hole 202. The connecting rib 12 can be a plate-shaped structure with a certain thickness to meet the traction force when tractioning the train. The upper end of the connecting rib 12 can be welded to the traction coupler assembly 2, or it can be other high-strength movable connection forms, such as bolt fixing.

[0024] A hydraulic cylinder 5 is also installed at the bottom of the traction arm body 1. The hydraulic cylinder 5 is connected to the connecting rod device 3 via a chain 4. The hydraulic cylinder 5 has its extension end facing the horizontal direction of the fixed seat 6, and its top end is connected to the chain 4. The hydraulic cylinder 5 provides the chain 4 with the power to pull the connecting rod device 3. The other end of the chain 4 is connected to a ring on the connecting rod device 3. The middle section of the chain 4 passes through several lugs (not shown in the figure) installed on the traction arm body 1, thus maintaining it on a fixed line. In the non-working state, the chain 4 is not subjected to the tensile force of the hydraulic cylinder 5, and therefore does not exert any tensile force on the connecting rod device 3. Figure 4As shown, in another embodiment of the present invention, the hydraulic cylinder 5 can also be directly mounted on the connecting rod device 3 at one end and connected to the bottom of the tractor arm body 1 at the other end. Through the extension and retraction movement of the hydraulic cylinder 5, the connecting rod device 3 can rotate relative to the tractor arm body 1, which can achieve the same technical effect. Its basic principle is the same as that of the above embodiment, and will not be described in detail here.

[0025] It also includes a support rod 7, the upper end of which is hinged to the connecting rib plate 12 at the second hinge hole 202, and the lower end of which is hinged to the tractor arm body 1 at the fourth hinge hole 404. The support rod 7 is a high-strength strip-shaped plate structure with through holes at both ends. Its main function is to cooperate with other components to provide support for the tractor hook assembly 2. Its movement trajectory is a rotational movement in the radial direction of the hinge hole 404 with the hinge hole 404 as the center.

[0026] The rotational motion of the connecting rod device 3 around the third hinge hole 303 is achieved by the hydraulic cylinder 5 driving the chain 4 to extend or shorten. Since the lower end of the connecting rod device 3 is hinged to the main body of the tractor arm through the hinge hole 303, when the upper part of the connecting rod device 3 is subjected to external tension, it will rotate around the hinge hole 303, thereby driving the tractor hook assembly 2 to move accordingly.

[0027] The connection between the towing hook assembly 2 and the towing arm body 1 is provided by a quadrilateral structure formed by the connecting rod device 3, the connecting rib plate 12, the towing arm body 1, and the support rod 7. After the towing hook assembly 2 is connected to the connecting rib plate 12, the first hinge hole 101 and the second hinge hole 202 at the upper end of the rib plate 12 are respectively hinged to the upper ends of the connecting rod device 3 and the support rod 7. The lower end of the connecting rod device 3 is hinged to the towing arm body 1 through the hinge hole 303, and the lower end of the support rod 7 is hinged to the towing arm body 1 through the hinge hole 404. At this time, a quadrilateral structure is formed by the connecting rib plate 12, the connecting rod device 3, the support rod 7, and the towing arm body 1. Utilizing the instability of the quadrilateral, when one side (designed as the connecting rod device 3 in this patent scheme) is pulled, the other three sides will make adaptive movements. In this patented technical solution, since the bottom of the tractor arm body 1 is fixed to the tractor equipment and has the largest overall weight among the four sides, when the connecting rod device 3 is subjected to tensile force from the chain 4, the connecting rib plate 12 and the support rod 7 make adaptive changes relative to the tractor arm body 1. The tractor hook assembly 2 is driven by the connecting rib plate 12, thereby making corresponding movements.

[0028] One end of the tractor arm body 1 is connected to a telescopic arm 68, and the other end of the telescopic arm 68 is sleeved within a fixed arm body 66. The telescopic arm 68 can extend and retract within the fixed arm body 66. In this patented technical solution, the designed overall tractor arm has a telescopic function. The aforementioned tractor arm body 1 refers to the part near the tractor hook assembly. One end of the telescopic arm 68 with telescopic function is connected to the aforementioned tractor arm body 1, and the other end is sleeved within the fixed arm body 66. Under different operating environments, the length of the entire tractor arm can be adjusted by adjusting the engagement depth between the telescopic arm 68 and the fixed arm body 66.

[0029] This patented solution can also include a through hole on the fixed base 6 for the rotating shaft to pass through; a locking block is provided at one end of the rotating shaft near the fixed base, and a locking handle is provided at the other end; one end of the locking handle is connected to a locking cylinder, and the locking handle, the rotating shaft, and the locking block are rotated by the extension or contraction of the locking cylinder. The rotating shaft and the locking handle are connected by a sleeve, and the connection part is provided with a device for increasing the rotational force transmitted by the locking handle to the rotating shaft. The rotating shaft and the locking block are connected by a sleeve, and the connection part is provided with a device for increasing the rotational force transmitted by the rotating shaft to the locking block.

[0030] By setting through holes in the fixed seat, and placing a locking block after the rotating shaft passes through the through holes, the locking block and the fixed seat form a combined force on the connecting rod device located at the opening of the fixed seat, fully securing the connecting rod device. This allows it to withstand greater push and pull forces during train car traction, extending the service life of the traction coupler. The traction arm, connecting ribs, connecting rod device, and support rod form a quadrilateral-like structure. When the locking block secures the connecting rod device, the traction coupler assembly is in the working position; when the locking block does not secure the connecting rod device, the traction coupler assembly can naturally fall and retract close to the traction arm, effectively saving space and reducing stress deformation and wear caused by gravity on the overall assembly.

[0031] When in use, the traction hook assembly 2 is retracted to the main body 1 of the traction arm when the entire traction machine is not in operation, ensuring that the overall height of the traction machine is low and does not occupy space. However, when the traction hook assembly needs to be operated, the hydraulic cylinder 9 retracts to drive the chain 4, and the traction force of the chain 4 pulls up the connecting rod device 3, so that the traction hook assembly 2 is in the raised state for train traction operation.

[0032] When the towing hook assembly 1 needs to be lowered to the retracted position, under the action of its own weight, the chain 4 is relaxed when the hydraulic cylinder 5 extends, and no tension is generated on the connecting rod device 3. The connecting rod device 3, together with the towing hook assembly 2, is smoothly lowered to the retracted position.

[0033] Finally, it should be noted that the above description 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 foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A train traction arm, comprising a traction arm body (1) for hooking a train traction hook assembly (2); a fixed seat (6) disposed at one end of the traction arm body (1); the fixed seat (6) having a slot (10) for a connecting rod device (3) to abut; a connecting rib (12) disposed at the lower part of the traction hook assembly (2), the connecting rib (12) having a first hinge hole (101) and a second hinge hole (202); the upper end of the connecting rod device (3) being hinged to the connecting rib through the first hinge hole (101), and its lower end being hinged to the traction arm body (1) through a third hinge hole (303) disposed on the traction arm body (1), characterized in that: The lifting and lowering of the traction hook assembly (2) can be achieved by the rotational movement of the connecting rod device (3) around the third hinge hole (303); the bottom of the traction arm body (1) is also provided with a hydraulic cylinder (5), which is connected to the connecting rod device (3) through a chain (4); it also includes a support rod (7), the upper end of which is hinged to the connecting rib plate (12) at the second hinge hole (202), and its lower end is hinged to the traction arm body (1) at the fourth hinge hole (404); the rotational movement of the connecting rod device (3) around the third hinge hole (303) is formed by the extension or shortening of the hydraulic cylinder (5); the connection between the traction hook assembly (2) and the traction arm body (1) is provided by the quadrilateral structure formed by the connecting rod device (3), the connecting rib plate (12), the traction arm body (1), and the support rod (7).

2. The train traction arm as described in claim 1, characterized in that: One end of the tractor arm body (1) is connected to a telescopic arm, and the other end of the telescopic arm is sleeved in the fixed arm body. The telescopic arm can extend and retract within the fixed arm body.

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