Length adjusting device for guide rod of railway vehicle

Abstract

The utility model discloses a railway vehicle guide rod length adjusting device, a guide rod comprises a first guide rod and a second guide rod, a shaft sleeve is arranged on the first guide rod, the shaft sleeve is in threaded connection with the second guide rod, and a clamping structure is arranged on the shaft sleeve. The length of the guide rod can be adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transportation, and specifically relates to a guide rod length adjusting device for a rail vehicle. Background Art

[0002] The guidance method of the rail bogie is central self-steering. The guidance device of the bogie mainly includes a guide wheel, a guide frame for installing the guide wheel, a ring bearing and a guide rod. One end of the guide rod is installed on the guide frame, and the other end is installed on the crank arm of a wheel. When the crank arm is subjected to tension or pressure, it can drive the wheel to rotate so that the vehicle can pass through the curve smoothly.

[0003] The guide rod is mainly composed of a ball joint assembly, a nut, a pull rod assembly, a telescopic rubber sleeve, a right telescopic rubber sleeve, etc. When the bogie passes through a curve, the guide wheel causes the guide frame to rotate relative to the ring bearing through the force between the guide wheel and the guide rail, driving the guide rod installed on the guide frame to rotate, thereby applying tension or pressure on the swing arm, driving the wheel to rotate, so that the bogie can pass through the curve smoothly.

[0004] Before the official operation of rail vehicles, in order to adapt to the requirements of the line, it is often necessary to adjust the length of the guide rod. The existing length adjustment method is mainly to disassemble the connecting parts at both ends of the guide rod. Since there are other parts of the bogie at the installation parts of the guide rod at both ends, the guide rod will interfere with other parts during the installation and disassembly process of adjusting the length of the guide rod, which is difficult to operate, with a large workload and low worker efficiency. Therefore, a simple-to-operate guide rod length adjustment mechanism is urgently needed to simplify the operation and improve work efficiency.

[0005] The invention patent with publication number CN103738349A was published on April 24, 2014. It is named as an adjustable rail vehicle guide frame device, which includes: an angle adjustment device, which is arranged above the wheel axle, and its two sides are respectively connected to the wheel axle through a connecting rod, and the angle adjustment device is movably connected with the connecting rod to adjust the swing angle of the tire; a guide frame, which is arranged below the angle adjustment device and movably connected with the angle adjustment device, and it and the angle adjustment device jointly adjust the swing angle of the tire; a plurality of guide wheels, which are symmetrically arranged on both sides of the bottom of the guide frame, and are respectively clamped on the fixed track. The adjustable rail vehicle guide frame device has a complex structure and cannot adjust the length of the guide rod. Utility Model Content

[0006] The utility model aims to provide a rail vehicle guide rod length adjusting device which has a simple structure, is easy to operate and can adjust the length of the guide rod in view of the deficiencies in the prior art.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] The rail vehicle guide rod length adjustment device comprises a first guide rod and a second guide rod, the first guide rod is provided with a shaft sleeve, the shaft sleeve and the second guide rod are threadedly connected, and the shaft sleeve is provided with a clamping structure.

[0009] The clamping structure comprises a fixing clamp, a bolt is arranged at the end of the fixing clamp, a nut and a gasket are arranged on the bolt, and the fixing clamp presses the two ends of the shaft sleeve.

[0010] A first ball joint is provided at the end of the first guide rod, and a first thread is provided on the first ball joint. The end of the second guide rod extends into the sleeve, and second threads and second ball joints are provided at both ends of the second guide rod respectively. The first thread and the second thread have opposite rotation directions, and the two ends of the sleeve are respectively matched with the first thread and the second thread.

[0011] The first guide rod is a straight structure, the middle part of the second guide rod is an arc structure, both ends of the second guide rod are horizontal structures, the axis of the first ball joint is horizontally arranged, and the axis of the second ball joint is perpendicular to the horizontal plane.

[0012] The fixing clip is an arc-shaped structure, a positioning opening is provided on the shaft sleeve, and the fixing clip is located on the positioning opening.

[0013] A vehicle axle is provided above the guide rod, and running wheels are provided at both ends of the vehicle axle. A running rail is provided below the guide rod, and the running wheels are arranged on the running rail. A guide rail is provided in the middle of the running rail, and a crank arm is connected to the side of the running wheel. The first ball joint is connected to the guide frame, and the guide frame is connected to the guide wheel. The second ball joint is connected to the crank arm.

[0014] There are four guide wheels, which are arranged on both sides of the guide rail.

[0015] The technical effect of the utility model is as follows: by adopting the rail vehicle guide rod length adjustment device of the utility model, the guide rod is designed to be a first guide rod and a second guide rod connected by threads, and the purpose of adjusting the guide rod length can be achieved by rotating the first guide rod, thereby changing the guide rod length adjustment method and adjustment position, replacing the method of adjusting the two end structures of the guide rod in the prior art, avoiding interference with other components during the process of loading and unloading the guide rod and adjusting the length of the guide rod, reducing the operating difficulty of workers, optimizing the operating environment, simplifying the operating steps, simplifying the operating process, and improving the work efficiency of workers; a thread structure with opposite rotation direction is also designed for the internal thread part of the sleeve, ensuring that the rotation of the first guide rod will not cause the rotation of the ball joint, ensuring the accuracy and reliability of the length adjustment amount; at the same time, the device has a simple structure and is easy to process, with low manufacturing cost, and can achieve lightweight and modular design and production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] This specification includes the following drawings, which show the following contents:

[0017] Figure 1 It is a structural schematic diagram of a rail vehicle guide rod length adjustment device of the utility model;

[0018] Figure 2 It is a schematic diagram of the installation main view of the utility model;

[0019] Figure 3 This is a top view of the installation of the utility model;

[0020] Figure 4 It is a schematic diagram of the installation of the fixing clip of the utility model.

[0021] The markings in the figure are: 1. Guide rod; 2. First guide rod; 3. Second guide rod; 4. Bushing; 5. Fixing clip; 6. Bolt; 7. Nut; 8. Gasket; 9. Axle; 10. Track wheel; 11. First ball joint; 12. Second ball joint; 13. First thread; 14. Second thread; 15. Track rail; 16. Guide frame; 17. Crank arm; 18. Guide rail; 19. Guide wheel; 20. Positioning opening. DETAILED DESCRIPTION

[0022] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate their implementation.

[0023] like Figures 1 to 4As shown, the guide rod length adjustment device for rail vehicles, the guide rod 1 includes a first guide rod 2 and a second guide rod 3, the first guide rod 2 is provided with a sleeve 4, the sleeve 4 and the second guide rod 3 are threadedly connected, and the sleeve 4 is provided with a clamping structure. The guide rod 1 is divided into two parts, the first guide rod 2 and the second guide rod 3, which are connected by threads and fixed by a clamping structure to keep the length of the guide rod 1 at a set length value. Therefore, before adjusting the length, it is only necessary to loosen the bolt 6 clamping device and rotate the rod of the first guide rod 2 of the guide rod 1 to achieve the purpose of adjusting the length of the guide rod 1.

[0024] like Figure 1 and Figure 4 As shown, the clamping structure includes a fixing clamp 5, a bolt 6 is provided at the end of the fixing clamp 5, a nut 7 and a gasket 8 are provided on the bolt 6, and the fixing clamp 5 presses the two ends of the shaft sleeve 4. In the above structure, under the pressing action of the bolt 6 and the nut 7, the fixing clamp 5 presses the fixing shaft sleeve 4 to maintain the length of the guide rod 1 after adjustment, wherein the gasket 8 is used to disperse the pressure and reduce the deformation of the fixing clamp 5. The second ball joint 12 is also fixed by the fixing clamp 5.

[0025] like Figure 1 As shown, the first guide rod 2 is provided with a first ball joint 11 at the end thereof, and a first thread 13 is provided on the first ball joint 11. The end of the second guide rod 3 extends into the shaft sleeve 4. The second guide rod 3 is provided with a second thread 14 and a second ball joint 12 at both ends thereof. The first thread 13 and the second thread 14 rotate in opposite directions, and the first thread 13 and the second thread 14 are matched with the first thread 13 and the second thread 14 at both ends thereof. The shaft sleeve 4 is provided with internal threads with opposite rotation directions at both ends thereof. The threads of the first ball joint 11 and the second ball joint 12 rotate in the same direction. The second thread 14 connecting the second guide rod 3 and the shaft sleeve 4 rotate in opposite directions to the threads of the above two ball joints. The length of the guide rod 1 can be extended or shortened by simply rotating the second guide rod 3 to control the feeding and retraction of the second thread 14. Moreover, when the first guide rod 2 of the guide rod 1 rotates, the rotation loosening of the first ball joint 11 or the second ball joint 12 will not be driven, so that the length adjustment process of the guide rod 1 is faster and smoother, and the required length adjustment amount of the guide rod 1 can also be accurately controlled.

[0026] like Figure 1As shown, the first guide rod 2 is a straight structure, the middle part of the second guide rod 3 is an arc structure, the two ends of the second guide rod 3 are horizontal structures, the axis of the first ball joint 11 is horizontally set, and the axis of the second ball joint 12 is perpendicular to the horizontal plane. The first guide rod 2 is a horizontal straight structure, and its rotation process does not take up space, so there are no other components in the first guide rod 2 that interfere with the disassembly and assembly of the clamp. The arc portion of the second guide rod 3 is used to transmit the guide force to the crank arm 17. The two ends of the second guide rod 3 are designed as horizontal structures to ensure that the installation position of the second ball joint 12 is still horizontal and accurate after the length of the guide rod 1 is adjusted; the first ball joint 11 is connected to the guide frame 16, and the second ball joint 12 is connected to the crank arm 17. The axis direction of the above ball joints is reasonably designed to ensure the accurate transmission direction of the guide force.

[0027] like Figure 4 As shown, the fixing clip 5 is an arc-shaped structure, and a positioning opening 20 is provided on the sleeve 4, and the fixing clip 5 is located on the positioning opening 20. The fixing clip 5 is an arc-shaped structure, and its extrusion force on the sleeve 4 is uniform, which can ensure the reliable installation of the sleeve 4, ensure the connection and fastening of the first guide rod 2 and the second guide rod 3, and ensure that the length of the guide rod 1 is maintained for a long time. The positioning opening 20 corresponds to the internal thread part of the sleeve 4, and the positioning opening 20 can facilitate the installation and positioning of the fixing clip 5, so that the fixing clip 5 is in an accurate installation position.

[0028] like Figure 2 and Figure 3 As shown, a vehicle bridge 9 is arranged above the guide rod 1, and running wheels 10 are arranged at both ends of the vehicle bridge 9. A running rail 15 is arranged below the guide rod 1, and the running wheel 10 is arranged on the running rail 15; a guide rail 18 is arranged in the middle of the running rail 15, and a crank arm 17 is connected to the side of the running wheel 10, a first ball joint 11 is connected to a guide frame 16, and the guide frame 16 is connected to a guide wheel 19, and a second ball joint 12 is connected to the crank arm 17. One end of the guide rod 1 is installed on the guide frame 16 through a ball joint, and the other end is also connected to the wheel crank arm 17 through a ball joint. In this way, when the vehicle passes through a curve, the guide rod 1 rotates with the guide frame 16, thereby applying tension or pressure on the rotating arm, thereby driving the rotation of the running wheel 10, so that the vehicle can pass through the curve smoothly.

[0029] like Figure 3 As shown, there are four guide wheels 19, which are arranged on both sides of the guide rail 18. The guide wheels 19 contact the guide rail 18 with the help of the steering force of the guide rod 1 to guide the rail vehicle during the turning process. Providing multiple guide wheels 19 can improve the accuracy of guidance and further ensure the stability of the rail vehicle when passing through the curve.

[0030] One end of the guide rod 1 is connected to the guide frame 16, and the other end is connected to the walking wheel 10 crank arm 17. Under certain conditions, it is necessary to adjust the length of the guide rod 1 to meet the requirements of normal operation of the vehicle. According to the previous length adjustment, the length is adjusted by loosening the clamping parts at both ends of the guide rod 1 and rotating the entire guide rod 1. Due to the presence of other components at both ends of the guide rod 1 and the long length of the guide rod 1 making it difficult to rotate the entire guide rod 1, the disassembly and assembly process is extremely inconvenient.

[0031] By using this device, the length adjustment of the guide rod 1 is changed from adjustment at both ends to adjustment of the first guide rod 2 in the middle. It is only necessary to connect the first guide rod 2 and the second guide rod 3 by threads, rotate the first guide rod 2 and fix it by the clamping structure, so that the length of the guide rod 1 can be adjusted. When the first ball joint 11 is connected to the first guide rod 2 and the second ball joint 12 is connected to the second guide rod 3, the connection threads of the two ball joints and the second guide rod 3 have inconsistent rotation directions, so the length of the guide rod 1 can be extended or shortened by rotating the first guide rod 2. Since the first guide rod 2 used for operating the rotation is a horizontal linear structure, its rotation process will not take up space. Therefore, there is no interference with the disassembly and assembly of the clamping parts by other components of the guide rod 1, and the difficulty of operation is reduced. At the same time, the operation process is simplified, the labor intensity of workers is reduced, and work efficiency is improved.

[0032] The rail vehicle guide rod length adjustment device designs the guide rod 1 as a first guide rod 2 and a second guide rod 3 connected by threads, and the purpose of adjusting the length of the guide rod 1 can be achieved by rotating the first guide rod 2, thereby changing the length adjustment method and adjustment position of the guide rod 1, replacing the method of adjusting the two end structures of the guide rod 1 in the prior art, avoiding interference with other components during the process of loading and unloading the guide rod 1 and adjusting the length of the guide rod 1, reducing the operating difficulty of workers, optimizing the operating environment, simplifying the operating steps, simplifying the operating process, and improving the work efficiency of workers; a thread structure with opposite rotation direction is also designed for the internal thread part of the shaft sleeve 4, ensuring that the rotation of the first guide rod 2 will not cause the rotation of the ball joint, ensuring the accuracy and reliability of the length adjustment amount; at the same time, the device has a simple structure, is easy to process, has a low manufacturing cost, and can achieve lightweight and modular design and production.

[0033] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A rail vehicle guide rod length adjustment device, characterized in that: The guide rod (1) comprises a first guide rod (2) and a second guide rod (3); the first guide rod (2) is provided with a shaft sleeve (4); the shaft sleeve (4) and the second guide rod (3) are threadedly connected; and the shaft sleeve (4) is provided with a clamping structure.

2. The rail vehicle guide rod length adjustment device according to claim 1, characterized in that: The clamping structure comprises a fixing clamp (5), the end of the fixing clamp (5) is provided with a bolt (6), the bolt (6) is provided with a nut (7) and a gasket (8), and the fixing clamp (5) presses the two ends of the shaft sleeve (4).

3. The rail vehicle guide rod length adjustment device according to claim 2, characterized in that: A first ball joint (11) is provided at the end of the first guide rod (2), and a first thread (13) is provided on the first ball joint (11). The end of the second guide rod (3) extends into the shaft sleeve (4), and a second thread (14) and a second ball joint (12) are provided at both ends of the second guide rod (3). The first thread (13) and the second thread (14) rotate in opposite directions, and the two ends of the shaft sleeve (4) are respectively matched with the first thread (13) and the second thread (14).

4. The rail vehicle guide rod length adjustment device according to claim 3, characterized in that: The first guide rod (2) is a straight structure, the middle part of the second guide rod (3) is an arc structure, the two ends of the second guide rod (3) are horizontal structures, the axis of the first ball joint (11) is horizontally arranged, and the axis of the second ball joint (12) is perpendicular to the horizontal plane.

5. The rail vehicle guide rod length adjustment device according to claim 4, characterized in that: The fixing clip (5) is an arc-shaped structure, a positioning opening (20) is provided on the shaft sleeve (4), and the fixing clip (5) is located on the positioning opening (20).

6. The rail vehicle guide rod length adjustment device according to any one of claims 3 to 5, characterized in that: A vehicle bridge (9) is provided above the guide rod (1), and running wheels (10) are provided at both ends of the vehicle bridge (9); a running rail (15) is provided below the guide rod (1), and the running wheel (10) is arranged on the running rail (15); a guide rail (18) is provided in the middle of the running rail (15), and a crank arm (17) is connected to the side of the running wheel (10); the first ball joint (11) is connected to a guide frame (16), and the guide frame (16) is connected to a guide wheel (19); and the second ball joint (12) is connected to the crank arm (17).

7. The rail vehicle guide rod length adjustment device according to claim 6, characterized in that: There are four guide wheels (19), and the guide wheels (19) are arranged on both sides of the guide rail (18).

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