Acceleration turnout switch rail slide plate pin ejection device

Abstract

The utility model discloses a speed-up turnout switch rail slide plate pin ejection device which comprises a hoop sleeve, an ejection pin and a jack, the tip end of the ejection pin is matched with the tip end of the slide plate pin through the hoop sleeve, the jack comprises a piston rod, an oil tank and a rear support, and the force application end of the ejection pin is connected with the piston rod of the jack. A cavity of a piston rod of the jack and the oil tank are fixedly arranged on a rear support of the jack, and the rear support of the jack is matched with a sleeper and a slide plate on the rear portion. According to the speed-up turnout switch rail slide plate pin ejection device, the hydraulic jack principle is adopted, an adjacent sleeper and a slide plate serve as supporting points, the front end of the slide plate pin is connected with the ejection pin through the hoop sleeve, the ejection pin is connected with a specially-made hydraulic jack piston rod, and high-pressure hydraulic oil continuously enters the oil cylinder through the hand pump; and the piston rod of the hydraulic jack extends out, and the slide plate pin is reversely ejected by ejecting the pin, so that the pin is pulled out.

Description

Technical Field

[0001] The utility model relates to the field of a slide bed plate pin ejection device, in particular to a slide bed plate pin ejection device for a speed-increasing turnout point rail. Background Art

[0002] Due to various reasons, the defects of the switch part of the turnout are particularly prominent in the engineering department, which seriously endangers the driving safety. In the design structure, the inner side of the base rail is pressed by pins to tighten the spring plate, so that the spring plate fixes the rail bottom inside the base rail. When the engineering personnel replace the rubber pad, slide bed and base rail of the switch part of the turnout, the pins must be removed for maintenance. However, some pins are under the point rail, which makes it inconvenient to remove them due to the small space.

[0003] At present, the tool used to remove the pins of the speed-up turnout point rail slide bed is a YBX-1 hydraulic pin puller, the main structure of which is composed of a manual hydraulic pump, a quick connector, a high-pressure hose, a pin extraction head and a pin ejection head. The pin extraction head is composed of a double-plunger push cylinder and a pin extraction pliers; the pin ejection head is composed of a double-plunger push cylinder and a push rod. In terms of design, the extraction head adopts a double push cylinder, and the clamp is in the middle position of the double push cylinder and on the same plane. Under the action of high-pressure oil, the pin can be pulled out. However, the device has the following problems:

[0004] 1. Uneven force causes damage to the pin puller. According to the design requirements, the contact between the pin puller and the slide bed plate pin must be a clearance fit, and the clearance must be large, otherwise it will be difficult to install. Since the entire hydraulic system does not have a balance valve (structural and space limitations make it difficult to install), the two double-plunger push cylinders cannot be synchronized under the action of high-pressure oil, resulting in different extension lengths of the double-plunger push cylinder piston rods. When the piston rod contacts the slide bed, the combined force direction of forces Q1 and Q2 will deviate from the axis of the slide bed plate pin, thereby making the pull-out forces F1 and F2 different in size, and the combined force F of the pull-out force also deviates, seriously affecting the service life of the pin puller. This is also the reason why the pin puller is either unable to be pulled out or damaged.

[0005] 2. Design space limits lifespan. According to the design structure dimensions of the pin, the maximum size of the pin puller's jaws is only 8*8*20. For ease of use, it is impossible to achieve this size in design and can only be reduced to 6*6*20. In actual use, the pin puller's jaws often break due to heat treatment and strength reasons, making them unusable and affecting construction operations.

[0006] Therefore, how to develop a speed-up turnout point rail slide bed pin ejection device has become a problem that needs to be solved urgently by technicians in this field. Utility Model Content

[0007] The utility model aims to provide a device for ejecting pins of a speed-increasing turnout point rail slide bed plate, so as to solve the above technical problems.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] The utility model discloses a pin ejecting device for a speed-up turnout pointed rail slide plate, comprising a hoop, an ejecting pin and a jack, wherein the tip of the ejecting pin cooperates with the tip of the slide plate pin through the hoop, the jack comprises a piston rod, an oil tank and a rear support, the force-applying end of the ejecting pin is connected with the piston rod of the jack, the cavity of the piston rod of the jack and the oil tank are fixedly arranged on the rear support of the jack, and the rear support of the jack cooperates with a rail sleeper and the slide plate at the rear.

[0010] Furthermore, a hand pump is provided on the oil tank of the jack.

[0011] Furthermore, a first protruding block is welded on the rear end surface of the rear support of the jack, and the first protruding block is at 90 degrees with the rear support.

[0012] Furthermore, the rear support of the jack cooperates with the upper end surface and the front end surface of the sleeper through a first protruding block.

[0013] Furthermore, a slide plate is arranged on the upper end surface of the sleeper, slide plate pins are arranged on the slide plate, and a pointed rail is arranged above the slide plate.

[0014] Furthermore, a second protruding block is welded on the rear end surface of the rear support of the jack, and the second protruding block cooperates with the front end surface of the rear sliding bed plate.

[0015] Furthermore, the inclination angle of the tip of the ejector pin is adapted to the inclination angle of the tip of the slide bed plate pin, and the hoop is sleeved at the overlapping portion of the ejector pin and the slide bed plate pin.

[0016] Compared with the prior art, the utility model has the following beneficial technical effects: the utility model has the following beneficial technical effects: the utility model adopts the principle of hydraulic jack to push out the pin of the slide bed plate of the speed-up turnout, takes the adjacent rail sleepers and the slide bed plate as the supporting points, connects the front end of the slide bed plate pin with the push-out pin through the hoop, and the push-out pin is connected with the piston rod of the special hydraulic jack. The high-pressure hydraulic oil is continuously fed into the oil cylinder through the hand pump, and the piston rod of the hydraulic jack is extended to push out the slide bed plate pin in the opposite direction through the push-out pin, thereby achieving the effect of pulling out the pin; the utility model breaks the inertial thinking of the slide bed plate pin of the speed-up turnout. Changing "pull" to "push" effectively solves the strength problem caused by the small working space and the inability to increase the size of the pin puller; the utility model speed-up turnout point rail slide plate pin ejection device effectively solves the problem of the stability of the ejection pin rod through the hoop; the utility model speed-up turnout point rail slide plate pin ejection device effectively solves the problem of the hydraulic jack being placed flat by changing the position of the oil suction port of the hydraulic jack; the utility model speed-up turnout point rail slide plate pin ejection device has a structural design in which the ejection pin cross-section size is smaller than the pin size, so that the ejection pin can be easily removed after the pin is ejected. In general, the utility model speed-up turnout point rail slide plate pin ejection device has a simple structure, ingenious design, practical functions, and can quickly and stably remove the slide plate pins. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings:

[0018] Figure 1 This is a working state diagram of the pin ejection device of the speed-up turnout point rail slide bed plate of the utility model;

[0019] Figure 2 This is an axonometric view of the pin ejection device of the slide bed plate of the speed-increasing turnout;

[0020] Figure 3 This is the matching diagram of the ejector pin and the slide bed plate pin;

[0021] Figure 4 A cross-sectional view of the hoop.

[0022] Explanation of the reference numerals in the accompanying drawings: 1. point rail; 2. slide bed pin; 3. slide bed; 4. sleeper; 5. hoop; 6. ejector pin; 7. piston rod; 8. hand pump; 9. oil tank; 10. rear support. DETAILED DESCRIPTION

[0023] like Figures 1 to 4 As shown, a speed-up turnout point rail slide plate pin ejection device includes a hoop 5, an ejection pin 6 and a jack. The upper end surface of the sleeper 4 is provided with a slide plate 3, the slide plate pin 2 is provided on the slide plate 3, and the point rail 1 is provided above the slide plate 3.

[0024] The tip of the ejector pin 6 cooperates with the tip of the slide plate pin 2 through the hoop 5. Specifically, the inclination angle of the tip of the ejector pin 6 is adapted to the inclination angle of the tip of the slide plate pin 2, and the hoop 5 is sleeved on the overlapping part of the ejector pin 6 and the slide plate pin 2.

[0025] The jack includes a piston rod 7, an oil tank 9 and a rear support 10, the force-applying end of the ejector pin 6 is connected to the piston rod 7 of the jack, the cavity of the piston rod 7 of the jack and the oil tank 9 are fixedly arranged on the rear support 10 of the jack, and a hand pump 8 is arranged on the oil tank 9 of the jack. The rear support 10 of the jack cooperates with the sleeper 4 and the slide bed plate 3 at the rear.

[0026] Specifically, a first protruding block is welded on the rear end surface of the rear support 10 of the jack, and the first protruding block is 90 degrees with the rear support 10. The rear support 10 of the jack cooperates with the upper end surface and the front end surface of the sleeper 4 through the first protruding block.

[0027] A second protruding block is welded on the rear end face of the rear support 10 of the jack, and the second protruding block cooperates with the front end face of the rear slide bed plate 3. Thus, the working position of the jack can be effectively fixed to prevent the jack from accidentally moving.

[0028] The working principle of the utility model is as follows:

[0029] First, the slide bed plate pin 2 is mostly located under the switch rail 1 due to the turnout structure, resulting in a narrow working space and is not easy to disassemble. It is not difficult to drive the slide bed plate pin 2 into place, just use a hammer to hit the slide bed plate pin 2, but when pulling it out, if you hit the front end of the slide bed plate pin 2 with a hammer, it is easy to knock out a fat edge, not only can it not be pulled out, but it is also easy to be damaged.

[0030] Therefore, under the action of the hoop sleeve 5, it is a more reasonable structure to use the piston rod 7 of the hydraulic jack to push out.

[0031] When pulling out, first connect the ejection pin 6 and the piston rod 7 of the hydraulic jack together through threads, put the hoop 5 on the ejection pin 6, install the hydraulic jack, and the rear support 10 of the jack is in contact with the slide bed plate 3 on the adjacent sleeper; the ejection pin 6, the hoop 5, and the slide bed plate pin 2 are coaxial, and the hoop 5 is moved to connect the slide bed plate pin 2 and the ejection pin 6 as a whole, and then shake the hand pump 8 of the jack, and through the well-known hydraulic principle, the piston rod 7 of the hydraulic jack is extended, and under the action of the reaction force of the rear support 10 of the hydraulic jack, the ejection force of the piston rod 7 is transmitted to the slide bed plate pin 2, thereby achieving the purpose of pulling out the slide bed plate pin 2.

[0032] like Figure 4As shown, the hoop 5, as the name implies, bundles the slide bed plate pin 2 and the ejector pin 6 together. In addition to the bundling function, its purpose is to improve the bending resistance of the ejector pin 6 during operation and increase stability. Its internal design is a step, the purpose of which is to prevent the ejector pin 6 from being unable to be withdrawn without changing the pressure after the slide bed plate pin 2 is ejected. The step-type design is to release the pressure of the pressure plate, so that the ejector pin 6 can be easily withdrawn with a small crowbar to proceed to the next step.

[0033] For easy operation, the ejector pin 6 is threadedly connected to the hydraulic jack piston rod 7, and the contact point at the other end is in contact with the slide bed plate pin 2 to receive the force transmission. The cross-sectional area in the middle is smaller than the cross-sectional area of ​​the slide bed plate pin 2 to facilitate withdrawal.

[0034] The structure of the hydraulic jack realizes a horizontal hydraulic jack by changing the position of the oil suction port. The rear support 10 is directly designed according to the spatial position and the slide bed plate 3 is used as a fulcrum to realize the function of the hydraulic jack.

[0035] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A pin ejection device for a speed-increasing turnout point rail slide bed plate, characterized in that: The invention comprises a hoop (5), an ejector pin (6) and a jack, wherein the tip of the ejector pin (6) cooperates with the tip of the slide bed plate pin (2) through the hoop (5), and the jack comprises a piston rod (7), an oil tank (9) and a rear support (10). The force-applying end of the ejector pin (6) is connected to the piston rod (7) of the jack, the cavity of the piston rod (7) of the jack and the oil tank (9) are fixedly arranged on the rear support (10) of the jack, and the rear support (10) of the jack cooperates with the rear rail sleeper (4) and the slide bed plate (3).

2. The pin ejection device for the speed-increasing turnout point rail slide bed plate according to claim 1 is characterized in that: A hand pump (8) is provided on the oil tank (9) of the jack.

3. The pin ejection device for the speed-increasing turnout point rail slide bed plate according to claim 1 is characterized in that: A first protruding block is welded on the rear end surface of the rear support (10) of the jack, and the first protruding block is at a 90° angle with the rear support (10).

4. The pin ejection device for the speed-increasing turnout point rail slide bed plate according to claim 3 is characterized in that: The rear support (10) of the jack cooperates with the upper end surface and the front end surface of the sleeper (4) through a first protruding block.

5. The pin ejection device for the speed-increasing turnout point rail slide bed plate according to claim 1 is characterized in that: The upper end surface of the sleeper (4) is provided with a slide bed plate (3), the slide bed plate pins (2) are provided on the slide bed plate (3), and a pointed rail (1) is provided above the slide bed plate (3).

6. The pin ejection device for the speed-increasing turnout point rail slide bed plate according to claim 1 is characterized in that: A second protruding block is welded on the rear end surface of the rear support (10) of the jack, and the second protruding block cooperates with the front end surface of the rear sliding bed plate (3).

7. The pin ejection device for the speed-increasing turnout point rail slide bed plate according to claim 1 is characterized in that: The inclination angle of the tip of the ejector pin (6) is adapted to the inclination angle of the tip of the slide bed plate pin (2), and the hoop (5) is sleeved at the overlapping portion of the ejector pin (6) and the slide bed plate pin (2).

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