Adjusting and fixing device for steel rail

Abstract

The utility model discloses an adjusting and fixing device for a steel rail, which comprises steel rail pressing plates (2) matched with two sides of the steel rail (1), the steel rail pressing plates (2) are connected onto a bottom plate (4) through pressing plate fixing screws (3), two sides of the bottom plate (4) are respectively connected onto large bottom plates (6) through bottom plate adjusting screws (5), and the large bottom plates (6) are arranged along the length direction of the steel rail (1). A pair of foot screws (7) is arranged on each of two sides of each large bottom plate (6), the sides, extending out of the upper surfaces of the large bottom plates (6), of the foot screws (7) are connected with large bottom plate top fixing nuts (8), the sides, extending out of the lower surfaces of the large bottom plates (6), of the foot screws (7) are connected with large bottom plate bottom adjusting nuts (9), a cement secondary grouting layer (10) is arranged below the large bottom plates (6), and the foot screws (7) are also embedded in the cement secondary grouting layer (10). The utility model has the advantages that the steel rail error is convenient to adjust, the high and controllable precision is realized, and the equipment precision can meet the high standard requirement.

Description

An adjustment and fixing device for rails Technical Field

[0001] This utility model belongs to the field of workshop equipment technology, and in particular relates to an adjustment and fixing device for steel rails. Background Technology

[0002] In sheet metal factories, steel rails are frequently used for equipment wheels. The required installation precision of the rails varies depending on the equipment, thus the rail adjustment and fixing devices also differ. For example, scanning automatic flaw detectors and hard block detectors require positioning accuracy within 1mm, operating speeds up to 1m / s, and operating lengths up to 40m. Therefore, high precision is required for the two rails; for instance, the elevation difference between the two 40m long rails must be controlled within 0.1mm, and the parallelism between the two rails must be within 0.5mm. Otherwise, the equipment accuracy will be directly affected, negatively impacting product quality. Figure 1 shows a common automatic scanning inspection device. The scanning inspection device M moves rapidly on rail N, with guide wheels P providing guidance. Rail N is over 40m long. Summary of the Invention

[0003] The purpose of this invention is to solve the problem that the accuracy of existing rails cannot meet the high-precision requirements of scanning and inspection equipment. It provides an adjustment and fixing device for rails, which can simplify the construction plan, facilitate the adjustment of rail errors, and achieve high and controllable accuracy, thereby enabling the equipment to meet high-standard accuracy requirements.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rail adjustment and fixing device includes rail pressure plates that mate with both sides of the rail. The rail pressure plates are connected to a base plate by pressure plate fixing screws. The base plate is located directly below the rail, and both sides of the base plate are connected to a large base plate by base plate adjusting screws. The large base plates are arranged along the length of the rail, and each large base plate has a pair of symmetrical foot screw through holes on both sides. A matching foot screw is inserted into each foot screw through hole, and the side of the foot screw extending out of the upper surface of the large base plate is connected to a top fixing nut of the large base plate, and the side of the foot screw extending out of the lower surface of the large base plate is connected to a bottom adjusting nut of the large base plate. A secondary cement grouting layer is provided below the large base plate, and the foot screws are also embedded in the secondary cement grouting layer.

[0006] Furthermore, one large base plate is set every 1 meter along the length of the rail. If the length of the rail is x meters, then there are a total of x large base plates.

[0007] Furthermore, the base plate is cut from a 16mm thick steel plate, and the four foot screw holes are φ26mm through holes.

[0008] Furthermore, the base plate has a thickness of 16mm and a width of 100mm. A base plate is set in the middle of each large base plate, and a rail pressure plate is set on each side of each base plate.

[0009] Furthermore, the rail pressure plate has a concave rail pressure surface on the side near the rail, and the slope of the rail pressure surface is the same as the slope of the rail feet on both sides of the rail.

[0010] Furthermore, the bottom surface of the rail pressure plate is provided with a first step platform, and the two sides of the bottom plate are respectively provided with a second step platform, and the first step platform and the second step platform are interlocked with each other.

[0011] Furthermore, the width of the rail is less than the distance between the two second steps on the base plate.

[0012] Compared with the prior art, the advantages of the technical solution of this utility model are as follows:

[0013] (1) By adjusting the height of the bottom adjusting nut, the height of each base plate can be adjusted so that the height error of the base plate is controlled within 1mm;

[0014] (2) The present invention uses hoisting to install the rail onto the base plate. In order to ensure the accuracy of the equipment, the upper and lower bottom surfaces and the two sides of the rail need to be processed. The rail pressure plate is designed according to the shape of the rail so that the pressure plate can restrict the rail on the base plate in the upper, lower and left and right directions for effective positioning.

[0015] (3) This utility model adjusts the center distance between the two rails by adjusting the left and right positions of the base plate on the large base plate, so that the track gauge error between the two rails on both sides of the whole length is controlled within 1mm. After adjusting the center distance between the two rails, the center distance is limited by the stop blocks on both sides.

[0016] (4) This utility model adjusts the distance between the base plate adjusting screw and the large base plate. This distance is within 5mm. It has been calculated when coarsely adjusting the rail elevation. In this way, the rail elevation is adjusted to the standard value elevation, so that the overall elevation accuracy is controlled within 0.1mm.

[0017] (5) After the rail accuracy meets the requirements, the present invention uses grouting material for secondary grouting to fix the base plate. The entire construction process is simple, easy to adjust, and highly controllable, thus achieving the goal of high equipment accuracy. Attached Figure Description

[0018] Figure 1 is a schematic diagram of an automatic scanning detection device in the prior art;

[0019] Figure 2 is a schematic diagram of the rail adjustment and fixing device of this utility model;

[0020] Figure 3 is a magnified view of part A in Figure 2;

[0021] Figure 4 is a top view of the rail adjustment and fixing device of this utility model;

[0022] Figure 5 is a schematic diagram of the base plate structure of this utility model;

[0023] Figure 6 is a front view of the rail pressure plate structure of this utility model;

[0024] Figure 7 is a top view of the rail pressure plate structure of this utility model. Detailed Implementation

[0025] Example

[0026] To make this utility model clearer, the following description, in conjunction with the accompanying drawings, further illustrates an adjusting and fixing device for rails according to this utility model. The specific embodiments described herein are for illustrative purposes only and are not intended to limit this utility model.

[0027] Referring to Figures 2 and 4, an adjustment and fixing device for rails is characterized by:

[0028] Includes rail pressure plates 2 that cooperate with both sides of rail 1. The rail pressure plates 2 are connected to the base plate 4 by pressure plate fixing screws 3. The base plate 4 is located directly below rail 1, and both sides of the base plate 4 are connected to the large base plate 6 by base plate adjusting screws 5. The large base plate 6 is arranged along the length of rail 1.

[0029] Each large base plate 6 has a pair of symmetrical foot screw through holes 6a on both sides. A matching foot screw 7 is inserted into each foot screw through hole 6a. The foot screw 7 is connected to the top fixing nut 8 of the large base plate on the side extending out of the upper surface of the large base plate 6. The foot screw 7 is connected to the bottom adjusting nut 9 of the large base plate on the side extending out of the lower surface of the large base plate 6. A secondary cement grouting layer 10 is provided below the large base plate 6. The foot screw 7 is also embedded in the secondary cement grouting layer 10.

[0030] Referring to Figures 3, 6, and 7, the rail pressure plate 2 has a concave rail pressure surface 2a on the side near the rail 1. The slope of the rail pressure surface 2a is the same as the slope of the rail feet on both sides of the rail 1. The bottom surface of the rail pressure plate 2 has a first step platform 2b, and the two sides of the base plate 4 have second steps platform 4a respectively. The first step platform 2b and the second step platform 4a are interlocked. The width of the rail 1 is less than the distance between the two second steps platform 4a on the base plate 4.

[0031] In this embodiment, the rail can be adjusted and fixed according to the following steps:

[0032] (1) Installation of the base plate 6 and rough adjustment of the elevation. After pre-embedding the base bolts 7 of the base plate 6 into the cement layer, the bolts are M24×600mm with a thread length of 160mm. Install the M24 base plate bottom adjusting nut 9 on the base bolts 7. Then install the base plate 6. One base plate 6 is installed every 1 meter. If the rail 1 is 40m long, there are 40 base plates in total. The base plate is made of 16mm thick steel plate. The upper and lower surfaces are not processed. There are 4 φ26 through holes on the base plate corresponding to the base bolts 7. By adjusting the height of the base plate bottom adjusting nut 9, the height of each base plate can be adjusted so that the height error of the base plate is controlled within 1mm. After adjusting the height of the base plate to within 1mm, install the top fixing nut 8 of the base plate and tighten the nut to fix the base plate 6.

[0033] (2) Place the base plate 4. The top and bottom of this base plate are machined surfaces, see Figure 5. Two full-thread M16 screw holes are machined on the base plate 4. The base plate 4 is 16mm thick and 100mm wide. Place one base plate 4 in the middle of each large base plate 6. The base plate 4 is not fixed for the time being.

[0034] (3) Installation of rail 1. The rail 1 is hoisted onto the base plate 4. To ensure the accuracy of the equipment, the top and bottom surfaces and both sides of the rail 1 need to be processed. The rail 1 is fixed onto the base plate 4 using the rail clamping plate 2 and clamping plate fixing screws 3. Refer to Figures 6 and 7. The rail clamping plate 2 is designed according to the rail 1 and can restrict the rail 1 vertically, horizontally and horizontally on the base plate 4 for effective positioning.

[0035] (4) Adjustment of the center distance of rail 1. The center distance of the two rails 1 is adjusted by adjusting the left and right positions of the base plate 4 on the large base plate 6. The track gauge error between the two rails on both sides of the whole length is controlled within 1mm. After the center distance of the two rails is adjusted, the center distance is limited on both sides by the stop blocks.

[0036] (5) Fine-tuning the rail elevation. Install the full-thread M16×25 base plate adjusting screw 5 on the base plate 4. Adjust the distance between the base plate adjusting screw 5 and the large base plate 6. This distance should be within 5mm. It was calculated during the rough adjustment of the rail elevation. The rail elevation should be adjusted to the standard value, and the overall elevation accuracy should be controlled within 0.1mm. After adjusting the rail elevation, weld the base plate 4 and the large base plate 6. The weld is shown at point B in Figure 2.

[0037] (6) Secondary grouting. After the rail accuracy meets the requirements, secondary grouting is carried out under the base plate 6 using grouting material to fix the base plate.

[0038] Using the device of this utility model for track adjustment and installation can achieve simple construction, convenient adjustment, high precision and controllability, and the equipment precision can meet high standard requirements.

[0039] In addition to the embodiments described above, this utility model may have other implementations. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.

Claims

1. An adjustment and fixing device for steel rails, characterized in that: Includes rail pressure plates (2) that cooperate with both sides of the rail (1). The rail pressure plates (2) are connected to the base plate (4) by pressure plate fixing screws (3). The base plate (4) is located directly below the rail (1), and both sides of the base plate (4) are connected to the large base plate (6) by base plate adjusting screws (5). The large base plates (6) are arranged along the length of the rail (1), and each large base plate (6) has a pair of symmetrical foot screw through holes (6a) on both sides. A matching base screw (7) is inserted into each base screw through hole (6a), and the base screw (7) extends out of the upper surface of the base plate (6) and is connected to the top fixing nut (8) of the base plate. The base screw (7) extends out of the lower surface of the base plate (6) and is connected to the bottom adjusting nut (9) of the base plate. A secondary cement grouting layer (10) is provided below the base plate (6), and the base screw (7) is also embedded in the secondary cement grouting layer (10).

2. The rail adjusting and fixing device according to claim 1, characterized in that: The large base plate (6) is set every 1 meter along the length of the rail (1). If the length of the rail (1) is x meters, then there are a total of x large base plates (6).

3. The rail adjusting and fixing device according to claim 1 or 2, characterized in that: The base plate (6) is cut from a 16mm thick steel plate, and the four foot screw through holes (6a) are φ26mm through holes.

4. The rail adjusting and fixing device according to claim 1 or 2, characterized in that: The thickness of the base plate (4) is 16mm and the width is 100mm. A base plate (4) is set in the middle of each large base plate (6), and a rail pressure plate (2) is set on each side of each base plate (4).

5. The rail adjusting and fixing device according to claim 1 or 2, characterized in that: The rail pressure plate (2) has a concave rail pressure surface (2a) on the side close to the rail (1), and the slope of the rail pressure surface (2a) is the same as the slope of the rail feet on both sides of the rail (1).

6. The rail adjusting and fixing device according to claim 5, characterized in that: The bottom surface of the rail pressure plate (2) is provided with a first step platform (2b), and the two sides of the bottom plate (4) are respectively provided with a second step platform (4a). The first step platform (2b) and the second step platform (4a) are engaged with each other.

7. The rail adjusting and fixing device according to claim 6, characterized in that: The width of the rail (1) is less than the distance between the two second steps (4a) on the base plate (4).

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