Tool for fixing elastic base plate

Abstract

The utility model belongs to the technical field of elastic backing plate fixing, and discloses a tool for fixing an elastic backing plate, which comprises a fixing frame, arc-shaped blocks are arranged at four corners of the outer side of the fixing frame, and one surface, far away from the fixing frame, of each arc-shaped block is an arc-shaped surface matched and attached to a chamfer arc of the elastic backing plate. The other face of the arc-shaped block is connected with a sliding strip in sliding fit with the fixing frame so that the arc-shaped block can be driven by the sliding strip to be close to or away from the chamfer arc of the elastic base plate. A rotating piece used for driving the sliding strip to slide on the fixing frame is installed on the inner side of the fixing frame, and the upper end of the rotating piece is detachably connected with a hand wheel used for controlling the rotating piece to rotate. According to the utility model, the position of the arc-shaped block can be adjusted by rotating the hand wheel, so that one surface of the arc-shaped block can be propped against the chamfer arc of the elastic base plate and can be taken down after about 7-10 minutes, the elastic base plate can be firmly adhered, the effect is better, and the operation is simple.

Description

Technical Field

[0001] This utility model belongs to the field of elastic pad fixing technology, specifically relating to a tooling for fixing elastic pads. Background Technology

[0002] Ballastless track elastic pads are key vibration damping components in track systems, mainly used to buffer the impact force of train operation, distribute loads, and maintain the stability of the track structure.

[0003] In practice, two limiting grooves are usually made on the concrete base under each track slab. During construction, an elastic pad needs to be bonded to the inner wall of each limiting groove. The elastic pad is made of EPDM material, which is relatively hard. Due to the optimization of the groove chamfer in the design, the chamfer radius was adjusted from 50mm to 100mm, which shortened the length of the straight section of the four sides of the groove. When the elastic pad is pasted at the chamfer arc, it is easy to not stick it firmly and form a void, which will affect the bonding quality. Utility Model Content

[0004] The purpose of this invention is to provide a tooling for fixing elastic pads, which addresses the problem of insecure adhesion of elastic pads at the chamfered arc when bonding them to the inner wall of the limiting groove.

[0005] To solve the aforementioned problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fixture for fixing an elastic pad includes a fixed frame. At each of the four corners of the outer side of the fixed frame, an arc-shaped block is provided. The side of the arc-shaped block away from the fixed frame is an arc-shaped surface that matches and fits against the chamfered arc of the elastic pad. The other side of the arc-shaped block is connected to a slide bar that slides with the fixed frame, used to move the arc-shaped block closer to or away from the chamfered arc of the elastic pad. A rotating component is installed inside the fixed frame to drive the slide bar to slide on the fixed frame. The upper end of the rotating component is detachably connected to a handwheel for controlling the rotation of the rotating component.

[0008] As a preferred technical solution of this utility model, the outer side of the four corners of the fixed frame is a first vertical surface, and the other side of the arc block is a second vertical surface that fits into the first vertical surface; each of the four corners of the fixed frame is provided with a sliding cavity that vertically penetrates the first vertical surface, and the slide bar is slidably connected in the sliding cavity.

[0009] As a preferred technical solution of this utility model, one side of the slide bar is provided with a rack with meshing teeth, and the other side of the slide bar is in contact with the slide cavity surface; the rotating component includes an adjusting gear rotatably connected to the inner side of the fixed frame, and the adjusting gear meshes with one side of the slide bar; a rectangular column section is provided on the upper part of the central shaft of the adjusting gear, and a rectangular hole matching and inserting into the rectangular column section is provided in the middle of the handwheel.

[0010] As a preferred technical solution of this utility model, the rotating component further includes two mounting plates connected to the inner side of the fixed frame. The two mounting plates are parallel to each other, the central shaft of the adjusting gear is rotatably engaged with the two mounting plates, and the rectangular column segment of the adjusting gear passes through and is located above one of the upper mounting plates.

[0011] As a preferred technical solution of this utility model, the lower part of the central shaft of the adjusting gear is a cylindrical segment rotatably connected between two mounting plates, and the diameter of the cylindrical segment is larger than the diameter of the circumcircle of the rectangular column segment; the longitudinal section of the rectangular column segment is a square structure.

[0012] As a preferred technical solution of this utility model, each of the two mounting plates has a mounting groove on its side close to each other, and a ball bearing is installed in the two mounting grooves. The two ends of the cylindrical section are respectively inserted into the inner rings of the two ball bearings. Snap rings are installed on the cylindrical sections at both ends of the adjusting gear, and the two snap rings abut against or have clearance fit with the inner rings of the corresponding ball bearings.

[0013] As a preferred technical solution of this utility model, each of the four corners of the outer side of the fixed frame is provided with a balance gear rotatably connected inside it, and the balance gear meshes with one side of the slide bar.

[0014] As a preferred technical solution of this utility model, a lifting rod is installed in the middle of the fixed frame, and the two ends of the lifting rod are respectively connected to the inner walls on both sides of the fixed frame.

[0015] Beneficial effects: When using this utility model, the entire elastic pad can be fixed in the limiting groove. Then, the handwheel is rotated, which drives the slider to slide relative to the fixed frame through the rotating part. This allows the position of the arc block to be adjusted, so that one side of the arc block can press against the chamfered arc of the elastic pad. After about 7-10 minutes, it can be removed, which can make the elastic pad stick firmly. The effect is good and the operation is simple. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation of the fixing frame of this utility model in the limiting groove;

[0017] Figure 2 This is a schematic diagram of the arc-shaped block pressing against the elastic pad of this utility model.

[0018] In the diagram: 1-Fixed frame; 2-Arc-shaped block; 3-Elastic pad; 4-Slider; 5-Handwheel; 6-Adjusting gear; 7-Mounting plate; 8-Balance gear; 9-Lifting rod; 10-Concrete base. Detailed Implementation

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0020] Example:

[0021] like Figure 1 and Figure 2 As shown, this embodiment provides a fixture for fixing an elastic pad. When in use, it is placed within a limiting groove on a concrete base 10, and its overall volume is smaller than the area of ​​the limiting groove, so that the internal structure is not damaged during installation. Specifically, this fixture includes a fixing frame 1, with arc-shaped blocks 2 at each of the four corners of the outer side of the fixing frame 1. The side of the arc-shaped block 2 away from the fixing frame 1 is an arc-shaped surface that matches and fits against the chamfered arc of the elastic pad 3. After the elastic pad 3 is installed, this fixture is used to first place the fixing frame 1, and then adjust the arc-shaped blocks 2 so that one side of the arc-shaped blocks 2 presses against the chamfered arc of the elastic pad 3. After about 7-10 minutes, the fixture is removed, allowing the elastic pad 3 to be firmly adhered, with good results.

[0022] In further detail, the other side of the arc-shaped block 2 is connected to a slide bar 4 that slides with the fixed frame 1. The slide bar 4 is used to move the arc-shaped block 2 closer to or away from the chamfered arc of the elastic pad 3, so that the arc-shaped block 2 is usually close to the fixed frame 1, which facilitates the placement and removal of the tooling for fixing the elastic pad. Then, the arc-shaped block 2 is adjusted so that it is pressed against the chamfered arc of the elastic pad 3. A rotating component is installed on the inner side of the fixed frame 1 to drive the slide bar 4 to slide on the fixed frame 1. The upper end of the rotating component is detachably connected to a handwheel 5 to control the rotation of the rotating component. In practice, the movement and adjustment of all arc-shaped blocks 2 can be realized by rotating one or more handwheels 5, which is simple and convenient.

[0023] In use, the entire elastic pad can be fixed in the limiting groove. Then, the handwheel 5 is rotated so that the handwheel 5 drives the slide bar 4 to slide relative to the fixed frame 1 through the rotating part, thereby adjusting the position of the arc block 2. This allows one side of the arc block 2 to press against the chamfered arc of the elastic pad 3. After about 7-10 minutes, it can be removed to make the elastic pad 3 stick firmly. The effect is good and the operation is simple.

[0024] As a preferred embodiment of this invention, it should be further explained that the outer side of the four corners of the fixed frame 1 is the first vertical surface, and the other side of the arc block 2 is the second vertical surface that is in contact with the first vertical surface, which makes the arc block 2 more stable when it is in contact with the fixed frame 1; each of the four corners of the fixed frame 1 is provided with a sliding cavity that penetrates the first vertical surface vertically, and the slide bar 4 is slidably connected in the sliding cavity, making the structural design more reasonable.

[0025] As a preferred embodiment of this invention, it should be further explained that one side of the slide bar 4 is provided with a rack with meshing teeth, and the other side of the slide bar 4 is in contact with the sliding cavity surface; the rotating component includes an adjusting gear 6 rotatably connected to the inside of the fixed frame 1, the adjusting gear 6 meshes with one side of the slide bar 4, so that the slide bar 4 can be driven to slide stably in the sliding cavity by rotating the adjusting gear 6; a rectangular column section is provided on the upper part of the central shaft of the adjusting gear 6, and a rectangular hole matching the rectangular column section is provided in the middle of the handwheel 5, so as to facilitate the quick installation and removal of the handwheel 5, and thus realize the position adjustment of all the arc blocks 2 through one handwheel 5, reducing the overall cost.

[0026] As a preferred embodiment of this invention, it should be further explained that the rotating component also includes two mounting plates 7 connected to the inner side of the fixed frame 1. The two mounting plates 7 are parallel to each other, and the central axis of the adjusting gear 6 is rotatably engaged with the two mounting plates 7. The rectangular column section of the adjusting gear 6 passes through and is located above one of the upper mounting plates 7. The overall structure is simple, the design cost is relatively low, and the stable rotation of the adjusting gear 6 can be guaranteed.

[0027] As a preferred embodiment of this invention, it should be further explained that the lower part of the central shaft of the adjusting gear 6 is a cylindrical segment rotatably connected between the two mounting plates 7. The diameter of the cylindrical segment is larger than the diameter of the circumcircle of the rectangular column segment. Preferably, the cylindrical segment is fixedly connected to the adjusting gear 6. The longitudinal section of the rectangular column segment is a square structure, which allows the central shaft to drive the adjusting gear 6 to rotate when it rotates. The square structure makes the manufacturing of the rectangular column segment simpler, and at the same time, while the cylindrical segment is stuck between the two mounting plates 7, it also allows the rectangular column segment to still rotate when it passes through the mounting plates 7.

[0028] As a preferred embodiment of this invention, it should be further explained that each of the two mounting plates 7 has a mounting groove on its side closest to each other. Ball bearings are installed in the two mounting grooves, and the two ends of the cylindrical section are respectively inserted into the inner rings of the two ball bearings, thereby reducing the frictional force when the central shaft rotates, making the rotation of the adjusting gear 6 more flexible. Each cylindrical section at both ends of the adjusting gear 6 is equipped with a retaining spring, and both retaining springs abut against or have a clearance fit with the inner rings of the corresponding ball bearings. Preferably, the adjusting gear 6 is sleeved outside the central shaft, providing different structural installation methods for easy adjustment and selection according to actual conditions. It should be noted that the ball bearings can simply be placed in the mounting grooves, and the stability of the ball bearings is ensured by the limiting effect of the retaining springs. Simultaneously, the abutment between the retaining springs and the inner rings of the ball bearings ensures the flexibility of the adjusting gear 6 during rotation. Two corresponding retaining grooves are provided on the cylindrical section to facilitate the installation of the retaining springs on the cylindrical section.

[0029] As a preferred embodiment of this example, it should be further explained that a balance gear 8 is rotatably connected to the four corners of the outer side of the fixed frame 1. The balance gear 8 meshes with one side of the slide bar 4. Through the cooperation of the balance gear 8 and the adjusting gear 6, two support points can be provided on one side of the slide bar 4, so that the slide bar 4 will not tilt to one side, thereby making the slide bar 4 more stable when sliding.

[0030] As a preferred embodiment of this invention, it should be further explained that a lifting rod 9 is installed in the middle of the fixed frame 1. The two ends of the lifting rod 9 are connected to the inner walls on both sides of the fixed frame 1, respectively. By holding the lifting rod 9, it is convenient to pick up, put down and move the whole device, thus providing convenience for moving the device.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tooling for fixing an elastic pad, characterized in that, The frame includes a fixed frame (1), and each of the four corners of the fixed frame (1) is provided with an arc block (2). The side of the arc block (2) away from the fixed frame (1) is an arc surface that matches and fits the chamfered arc of the elastic pad (3). The other side of the arc block (2) is connected to a slide bar (4) that slides with the fixed frame (1) to drive the arc block (2) closer to or away from the chamfered arc of the elastic pad (3). A rotating component is installed on the inner side of the fixed frame (1) to drive the slide bar (4) to slide on the fixed frame (1). The upper end of the rotating component is detachably connected to a handwheel (5) to control the rotation of the rotating component.

2. The tooling for fixing an elastic pad according to claim 1, characterized in that, The outer side of the four corners of the fixed frame (1) is the first vertical surface, and the other side of the arc block (2) is the second vertical surface that is in contact with the first vertical surface; each of the four corners of the fixed frame (1) is provided with a sliding cavity that penetrates the first vertical surface vertically, and the slide bar (4) is slidably connected in the sliding cavity.

3. The tooling for fixing an elastic pad according to claim 2, characterized in that, The slide bar (4) has a rack with meshing teeth on one side and the other side of the slide bar (4) is in contact with the sliding cavity surface; the rotating component includes an adjusting gear (6) rotatably connected to the inside of the fixed frame (1), the adjusting gear (6) meshing with one side of the slide bar (4); the upper part of the central shaft of the adjusting gear (6) is provided with a rectangular column section, and the middle part of the handwheel (5) is provided with a rectangular hole that matches and inserts into the rectangular column section.

4. The tooling for fixing an elastic pad according to claim 3, characterized in that, The rotating component also includes two mounting plates (7) connected to the inner side of the fixed frame (1). The two mounting plates (7) are parallel to each other. The central axis of the adjusting gear (6) is rotatably engaged with the two mounting plates (7), and the rectangular column of the adjusting gear (6) passes through the upper mounting plate (7).

5. The tooling for fixing an elastic pad according to claim 4, characterized in that, The lower part of the central shaft of the adjusting gear (6) is a cylindrical section rotatably connected between two mounting plates (7). The diameter of the cylindrical section is larger than the diameter of the circumcircle of the rectangular column section. The longitudinal section of the rectangular column section is a square structure.

6. The tooling for fixing an elastic pad according to claim 5, characterized in that, The two mounting plates (7) have mounting grooves on their sides that are close to each other. Ball bearings are installed in the two mounting grooves. The two ends of the cylindrical section are respectively inserted into the inner rings of the two ball bearings. Snap rings are installed on the cylindrical sections at both ends of the adjusting gear (6). The two snap rings abut against or are clearance-fitted with the inner rings of the corresponding ball bearings.

7. A tooling for fixing an elastic pad according to any one of claims 3-6, characterized in that, The four corners of the fixed frame (1) are provided with rotatably connected balance gears (8) inside it, and the balance gears (8) mesh with one side of the slide bar (4).

8. A tooling for fixing an elastic pad according to any one of claims 1-6, characterized in that, A lifting rod (9) is installed in the middle of the fixed frame (1), and the two ends of the lifting rod (9) are connected to the inner walls on both sides of the fixed frame (1).

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