Six-degree-of-freedom precise adjustment mechanism for ballastless track

Abstract

The utility model discloses a kind of six-degree-of-freedom accurate adjustment mechanism of ballastless track, belong to the technical field related to track construction, including the adjusting mechanism between upper mounting plate and lower mounting plate is installed, adjusting mechanism includes three upper fixed frame and three lower fixed frame, the inside of upper fixed frame and lower fixed frame is fixedly installed with bearing box, and lower mounting plate is provided with the mounting groove for providing its inside installed bearing box mounting space, two connecting bearings are installed in bearing box, and every upper and lower adjacent two connecting bearings are sequentially connected with hydraulic support arm, the top of hydraulic support arm is rotatably connected with the connecting bearing of upper portion by upper shaft seat, the bottom of hydraulic support arm is rotatably connected with the connecting bearing of lower portion by lower shaft seat;Six-degree-of-freedom flexible adjustment of clamping mechanism can be realized, and lubrication inside bearing box is facilitated.

Description

Technical Field

[0001] This utility model belongs to the technical field of track construction, specifically a six-degree-of-freedom precision adjustment mechanism for ballastless track. Background Technology

[0002] Ballastless track, with its advantages of high smoothness, high stability, low maintenance and low operating costs, has become the main form of track structure for high-speed railways in my country. During construction, the track slab needs to be initially placed on the supporting layer. Subsequently, a crucial fine-tuning process must be performed, requiring the use of appropriate adjustment mechanisms to adjust the position of the track slab.

[0003] Currently, for ballastless tracks, after the clamping process of the track bed slab, most of the time, manual adjustment of the clamping mechanism is carried out with the help of auxiliary tools such as jacks. Although this auxiliary operation can adjust the installation position of the track bed slab to a certain extent, it is time-consuming and labor-intensive, and the adjustment accuracy is generally not high. Utility Model Content

[0004] This invention provides a six-degree-of-freedom precision adjustment mechanism for ballastless tracks, which can effectively solve the problem in the prior art that the track bed slab requires complex manual adjustment with the aid of external tools after clamping. A six-degree-of-freedom precision adjustment mechanism for ballastless track includes an adjustment mechanism installed between an upper mounting plate and a lower mounting plate. The adjustment mechanism includes three upper fixed frames and three lower fixed frames. Bearing housings are fixedly installed inside the upper and lower fixed frames. The lower mounting plate has a mounting groove for providing mounting space for the bearing housings inside. Two connecting bearings are installed inside the bearing housings. A hydraulic support arm is sequentially connected between every two adjacent connecting bearings. The top end of the hydraulic support arm is rotatably connected to the upper connecting bearing through an upper bearing seat, and the bottom end of the hydraulic support arm is rotatably connected to the lower connecting bearing through a lower bearing seat.

[0005] As a further technical solution of this utility model, the bearing box located at the top is installed horizontally in the upper fixed frame, and the bearing box located at the bottom is installed at an angle in the lower fixed frame.

[0006] As a further technical solution of this utility model, a number of mounting holes are provided through the outer edges of the upper fixing frame and the lower fixing frame.

[0007] As a further technical solution of this utility model, the connecting bearing penetrates the interior of the bearing housing, and a bearing end cap is installed on the outer end of the connecting bearing.

[0008] As a further technical solution of this utility model, the bearing housing is provided with a lubrication mechanism. The lubrication mechanism includes a fixed pipe, a steering pipe connected to the inner end of the fixed pipe, a straight pipe connected to the end of the steering pipe away from the fixed pipe, two branch pipes installed on both sides of the straight pipe, an arc-shaped pipe fixedly connected to the end of the branch pipe, and several spray pipes equidistantly connected to the outside of the arc-shaped pipe.

[0009] As a further technical solution of this utility model, the fixing tube penetrates through the side wall of the bearing housing, and an end cap is fastened to one end located outside the side wall of the bearing housing.

[0010] As a further technical solution of this utility model, the length of the steering tube is greater than the length of the fixed tube, and the steering tube and the fixed tube are arranged perpendicularly.

[0011] As a further technical solution of this utility model, the length of the straight pipe is greater than the length of the steering pipe, and the straight pipe and the steering pipe are arranged perpendicularly.

[0012] As a further technical solution of this utility model, the diameter of the straight pipe is larger than the diameter of the branch pipe, and the branch pipe is arranged perpendicular to the straight pipe.

[0013] As a further technical solution of this utility model, the injection pipe is inclined toward the outside of the bearing housing.

[0014] The beneficial effects of this utility model are as follows: By setting an adjustment mechanism, after the clamping mechanism clamps the track bed slab of the ballastless track, the extension and retraction adjustment of the six hydraulic support arms, combined with the connection of the upper and lower shaft seats and the corresponding connecting bearings, can adapt to the tilt angle changes brought about by the extension and retraction adjustment of the hydraulic support arms through the rotation of the connecting bearings. This allows for the adjustment operation of the lower mounting plate with six degrees of freedom, so that the position of the clamping mechanism can be flexibly adjusted to adapt to the placement requirements of the track bed slab in different positions. Furthermore, by setting up a lubrication mechanism, lubricant can be sprayed outward from each spray pipe. The spray pipe is tilted outward, and the lubricant is sprayed onto the connection between the connecting bearing and the bearing housing through the oblique spray of the spray pipe, thereby achieving a lubrication effect. This facilitates regular lubrication of the connecting bearing and improves the smoothness of the connection with the bearing housing. Attached Figure Description

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural diagram of the adjusting mechanism in this utility model; Figure 3 This is a side view of the bearing housing in this utility model; Figure 4 This is a structural diagram of the bearing connection in this utility model; Figure 5 This is a structural diagram of the lubrication mechanism in this utility model.

[0017] In the diagram: 1. Upper mounting plate; 2. Adjustment mechanism; 201. Upper fixed frame; 202. Lower fixed frame; 203. Hydraulic support arm; 204. Connecting bearing; 205. Bearing housing; 206. Upper shaft seat; 207. Lower shaft seat; 208. Mounting hole; 209. Lubrication mechanism; 210. Steering pipe; 211. Fixed pipe; 212. End cap; 213. Straight pipe; 214. Branch pipe; 215. Arc-shaped pipe; 216. Injection pipe; 3. Lower mounting plate; 4. Mounting groove; 5. Clamping mechanism. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figures 1-5 As shown, a six-degree-of-freedom precision adjustment mechanism for ballastless track includes an adjustment mechanism 2 installed between an upper mounting plate 1 and a lower mounting plate 3. The adjustment mechanism 2 includes three upper fixed frames 201 and three lower fixed frames 202. Bearing housings 205 are fixedly installed inside the upper fixed frames 201 and the lower fixed frames 202. The lower mounting plate 3 has a mounting groove 4 for providing mounting space for the bearing housings 205. Two connecting bearings 204 are installed inside the bearing housings 205. A hydraulic support arm 203 is sequentially connected between every two adjacent connecting bearings 204. The top end of the hydraulic support arm 203 is rotatably connected to the upper connecting bearing 204 through an upper bearing seat 206, and the bottom end of the hydraulic support arm 203 is rotatably connected to the lower connecting bearing 204 through a lower bearing seat 207.

[0020] The upper bearing housing 205 is installed horizontally in the upper fixed frame 201, and the lower bearing housing 205 is installed at an angle in the lower fixed frame 202. The lower bearing housing 205 is installed at an angle to adapt to the inclination of the hydraulic arm 203, so that multiple hydraulic arms 203 can maintain a relative inclination in sequence.

[0021] Several mounting holes 208 are provided on the outer edges of the upper fixing frame 201 and the lower fixing frame 202.

[0022] The connecting bearing 204 penetrates the interior of the bearing housing 205, and a bearing end cap is installed on the outer end of the connecting bearing 204. The bearing end cap facilitates sealing one end of the connecting bearing 204, thereby improving its sealing effect inside the bearing housing 205.

[0023] The bearing housing 205 is equipped with a lubrication mechanism 209. The lubrication mechanism 209 includes a fixed pipe 211. The inner end of the fixed pipe 211 is connected to a steering pipe 210. The end of the steering pipe 210 away from the fixed pipe 211 is connected to a straight pipe 213. Two branch pipes 214 are installed on both sides of the straight pipe 213. An arc-shaped pipe 215 is fixedly connected to the end of the branch pipe 214. Several spray pipes 216 are equidistantly connected to the outside of the arc-shaped pipe 215.

[0024] The fixing tube 211 penetrates the side wall of the bearing housing 205, and an end cap 212 is fastened to one end of the tube located outside the side wall of the bearing housing 205.

[0025] The end cap 212 is fastened to the outer end of the fixed tube 211 to seal the fixed tube 211. After the end cap 212 is removed, the port of the fixed tube 211 can be exposed, which makes it easier to inject lubricant into the interior of the fixed tube 211.

[0026] The length of the steering pipe 210 is greater than the length of the fixed pipe 211, and the steering pipe 210 and the fixed pipe 211 are arranged perpendicularly. The length of the straight pipe 213 is greater than the length of the steering pipe 210, and the straight pipe 213 and the steering pipe 210 are arranged perpendicularly. The diameter of the straight pipe 213 is greater than the diameter of the branch pipe 214, and the branch pipe 214 and the straight pipe 213 are arranged perpendicularly. The injection pipe 216 is inclined towards the outside of the bearing housing 205.

[0027] After the steering pipe 210 is used to turn the bearing, the straight pipe 213 is positioned above the section of the connecting bearing 204 located inside the bearing housing 205. Two arc-shaped pipes 215 on the same axis are positioned at both ends of the connecting bearing 204. The lubricant is sprayed onto the connection between the connecting bearing 204 and the bearing housing 205 through the spray pipe 216 at an angle, thereby achieving a lubrication effect.

[0028] A six-degree-of-freedom precision adjustment mechanism for ballastless track is provided. In use, the adjustment mechanism 2 is fixedly installed with the upper mounting plate 1. The lower mounting plate 3 for the clamping mechanism 5 is adjusted by the adjustment mechanism 2. By adjusting the position of the clamping mechanism 5, the track bed slab can be clamped to different designated positions.

[0029] After the clamping mechanism 5 clamps the track bed slab, the lower mounting plate 3 can be moved to different directions by extending or shortening the six hydraulic support arms 203 set in different positions, thereby moving the clamping mechanism 5 to different positions, thus realizing the six degrees of freedom adjustment of the clamping mechanism 5.

[0030] Because the hydraulic outrigger 203 is provided with an upper bearing 206 and a lower bearing 207 at both ends, and the upper bearing 206 and the lower bearing 207 are rotatably connected to the corresponding connecting bearing 204, and the connecting bearing 204 itself can also rotate, so that when the hydraulic outrigger 203 moves, the direction can be adjusted by the rotation of the connecting bearing 204 when it extends and retracts.

[0031] It is also equipped with a lubrication mechanism 209. Straight pipes 213 are distributed above the section of the connecting bearing 204 located inside the bearing housing 205. Two arc-shaped pipes 215 on the same axis are distributed at both ends of the connecting bearing 204. Lubricant is sprayed onto the connection between the connecting bearing 204 and the bearing housing 205 through the spray pipe 216 at an angle, thereby achieving a lubrication effect and facilitating lubrication treatment after the connecting bearing 204 and the bearing housing 205 are installed.

[0032] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A six-degree-of-freedom precision adjustment mechanism for ballastless tracks, characterized in that, The adjustment mechanism (2) is installed between the upper mounting plate (1) and the lower mounting plate (3). The adjustment mechanism (2) includes three upper fixed frames (201) and three lower fixed frames (202). Bearing housings (205) are fixedly installed inside the upper fixed frames (201) and the lower fixed frames (202). The lower mounting plate (3) has a mounting groove (4) for providing mounting space for the bearing housings (205) installed inside. Two connecting bearings (204) are installed inside the bearing housings (205). A hydraulic support arm (203) is connected between each pair of adjacent connecting bearings (204). The top end of the hydraulic support arm (203) is rotatably connected to the upper connecting bearing (204) through the upper bearing seat (206). The bottom end of the hydraulic support arm (203) is rotatably connected to the lower connecting bearing (204) through the lower bearing seat (207).

2. The six-degree-of-freedom precision adjustment mechanism for ballastless track according to claim 1, characterized in that, The bearing housing (205) located at the top is installed horizontally in the upper fixed frame (201), and the bearing housing (205) located at the bottom is installed at an angle in the lower fixed frame (202).

3. The six-degree-of-freedom precision adjustment mechanism for ballastless track according to claim 2, characterized in that, A number of mounting holes (208) are provided through the outer edges of the upper fixing frame (201) and the lower fixing frame (202).

4. The six-degree-of-freedom precision adjustment mechanism for ballastless track according to claim 1, characterized in that, The connecting bearing (204) penetrates the interior of the bearing housing (205), and a bearing end cap is installed on the outer end of the connecting bearing (204).

5. The six-degree-of-freedom precision adjustment mechanism for ballastless track according to claim 4, characterized in that, The bearing housing (205) is equipped with a lubrication mechanism (209). The lubrication mechanism (209) includes a fixed pipe (211). The inner end of the fixed pipe (211) is connected to a steering pipe (210). The end of the steering pipe (210) away from the fixed pipe (211) is connected to a straight pipe (213). Two branch pipes (214) are installed on both sides of the straight pipe (213). The end of the branch pipe (214) is fixedly connected to an arc-shaped pipe (215), and several spray pipes (216) are equidistantly connected to the outside of the arc-shaped pipe (215).

6. The six-degree-of-freedom precision adjustment mechanism for ballastless track according to claim 5, characterized in that, The fixing tube (211) penetrates the side wall of the bearing housing (205), and an end cap (212) is fastened to one end of the tube located outside the side wall of the bearing housing (205).

7. The six-degree-of-freedom precision adjustment mechanism for ballastless track according to claim 5, characterized in that, The length of the steering pipe (210) is greater than the length of the fixed pipe (211), and the steering pipe (210) and the fixed pipe (211) are arranged perpendicularly.

8. The six-degree-of-freedom precision adjustment mechanism for ballastless track according to claim 7, characterized in that, The length of the straight pipe (213) is greater than the length of the steering pipe (210), and the straight pipe (213) and the steering pipe (210) are arranged perpendicularly.

9. A six-degree-of-freedom precision adjustment mechanism for ballastless track according to claim 7, characterized in that, The diameter of the straight pipe (213) is larger than the diameter of the branch pipe (214), and the branch pipe (214) is perpendicular to the straight pipe (213).

10. A six-degree-of-freedom precision adjustment mechanism for ballastless track according to claim 9, characterized in that, The injection pipe (216) is inclined toward the outside of the bearing housing (205).

Images