A motor vehicle coupling cover plate disassembly device and use method thereof

Abstract

The invention discloses a device for disassembling a coupling cover plate of an EMU, which comprises a handle, a pull ring is movably installed in the handle through a connecting rod, a base is fixedly installed on the handle, two or more steel bars are fixedly connected to the base, a clamping claw is arranged on the top of the steel bar, a sleeve is fixedly connected on the upper part of the connecting rod, the steel bar is inserted into the sleeve and is arranged in a trumpet shape, and a spring is arranged between the sleeve and the base; when the device is used to disassemble the cover plate, since the steel bar applies force evenly to the cover plate, deformation of the cover plate is effectively avoided, and in addition, the device acts on the cover plate part, and can change the diameter according to the size of the center hole of the cover plate to achieve entry and exit from the center hole of the cover plate; moreover, the overall structure of the device is simple, and all control requirements can be achieved by single-handed operation, thereby accurately and efficiently completing the coupling cover plate disassembly work in the coupling production process.

Description

Technical Field

[0001] The invention belongs to the technical field of rail transportation, and in particular relates to a disassembly device used for repairing and inspecting a coupling of an EMU and a use method thereof. Background Art

[0002] The coupling is a key component of the transmission system of the railway train bogie, and its manufacturing and repair product quality requirements are relatively high. Before assembling the coupling, it is necessary to confirm its internal state and disassemble the coupling cover. According to the structural characteristics of the coupling, the cover and the coupling body are clamped by a sealing ring, and the center of the cover is opened, and it can be pulled out by applying force through the center hole. At present, if you only use human force to pull the cover, the force of the fingers cannot offset the clamping force of the cover; using general tools such as crowbars, screwdrivers, etc., you can pry open the cover, but the fulcrum position of the prying is prone to damage. In addition, the diameter of the center hole of the cover is small, and the diameter of the coupling of different models is generally between 17mm and 21mm, which is difficult for non-standard tooling tools to adapt.

[0003] At present, the commonly used method in the industry is to use columnar tools or crutches for prying. At the contact point between the tool and the cover, the force transmission will cause a certain degree of damage to the cover. Usually, insulating tape or rubber tubes are wrapped around the surface of the prying tool to reduce the hardness of the contact point to protect against contact damage. In addition, when prying in this way, the cover will be deformed when the prying force is too large. Since the center hole of the cover is small, the design requirements for the expansion and contraction mechanism that can achieve uniform force are high, and common mechanisms cannot be effectively applied.

[0004] How to disassemble the coupling cover to achieve high-quality and efficient operation methods and ensure the quality of train body assembly is the fundamental thing people are pursuing now. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a motor vehicle coupling cover plate disassembly device and a method for using the device to achieve high-quality and high-efficiency operation.

[0006] A device for disassembling a coupling cover plate of an EMU according to an embodiment of the first aspect of the present invention comprises a handle, a pull ring is movably installed in the handle through a connecting rod, a base is fixedly installed on the handle, two or more steel bars are fixedly connected to the base, claws are provided on the top of the steel bars, a sleeve is fixedly connected on the upper part of the connecting rod, the steel bar is inserted into the sleeve and arranged in a trumpet shape, and a spring is provided between the sleeve and the base.

[0007] According to some embodiments of the present invention, a pin is passed through the sleeve, and the spring is installed between the pin and the base.

[0008] According to some embodiments of the present invention, there are two pins arranged in a cross pattern.

[0009] According to some embodiments of the present invention, there are four steel bars evenly distributed along the base.

[0010] According to some embodiments of the present invention, the base is an I-shaped structure, with the lower portion serving as a steel bar fixing seat and the upper portion serving as a support seat, and the support seat is provided with a groove for positioning the steel bar.

[0011] According to some embodiments of the present invention, the steel bar is a spring steel bar.

[0012] According to some embodiments of the present invention, there are two connecting rods, which are distributed and fixed on both sides of the sleeve.

[0013] According to some embodiments of the present invention, the connecting rod is movably connected to the handle.

[0014] According to some embodiments of the present invention, the connecting rod is fixedly connected to the sleeve by bolts.

[0015] A method for using a motor vehicle coupling cover plate disassembly device according to a second aspect of an embodiment of the present invention comprises the following steps:

[0016] 1): First, pass the steel bar through the center hole of the cover plate;

[0017] 2): Pull the pull ring, which drives the sleeve to compress the spring. At the same time, the steel bar is freed from the constraint of the sleeve, forming an open hook state. The claws on the top of the steel bar are close to the bottom of the cover. At this time, apply force to the handle to complete the removal of the cover;

[0018] 3) Release the pull ring, and the sleeve returns to its initial state under the action of the spring. The steel bar contracts under the constraint of the sleeve, so that the cover plate is separated from the steel bar.

[0019] The present invention has at least the following beneficial effects: when the device is used to disassemble the cover plate, the steel bar applies force evenly to the cover plate, thereby effectively preventing the cover plate from being deformed; in addition, the device acts on the cover plate part, and can change the diameter according to the size of the center hole of the cover plate to achieve entry and exit from the center hole of the cover plate; moreover, the overall structure of the device is simple, and all control requirements can be achieved by single-handed operation, thereby accurately and efficiently completing the disassembly of the coupling cover plate in the coupling production process.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 It is a structural state diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the use state of the present invention;

[0024] Figure 3 It is a schematic diagram of the installation of the base of the present invention;

[0025] Figure 4 It is a schematic diagram of the internal structure of the present invention. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present invention, "a plurality" means more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference Figure 1 A coupling cover disassembly device for a motor vehicle comprises a handle 1, a pull ring 2 is movably installed in the handle 1 through a connecting rod 21, the connecting rod 21 is movably connected to the handle 1, a base 3 is fixedly installed on the handle 1, two or more steel bars 4 are fixedly connected to the base 3, a claw 41 is arranged on the top of the steel bar 4, there are two connecting rods 21, which are distributed and fixed on both sides of the sleeve 5, and the connecting rod 21 is fixedly connected to the sleeve 5 by bolts. The steel bar 4 is inserted in the sleeve 5 and arranged in a trumpet shape, and a spring 6 is arranged between the sleeve 5 and the base 3.

[0031] Reference Figure 4 In order to remove the constraint on the steel bar 4 when the product is not in use and to increase the service life of the steel bar 4, a pin 51 is inserted into the sleeve 5, and the spring 6 is installed between the pin 51 and the base 3. When the product is not in use, the pin 51 can be removed from the sleeve 5. In addition, there are two pins 51, which are arranged in a cross shape, so as to provide uniform support for the spring 6.

[0032] The steel bars 4 used in this product are spring steel bars, and there are four of them, which are evenly distributed along the base 3. Of course, they can also be made into 3 or 5 bars as needed.

[0033] Reference Figure 3 The base 3 of this product is an I-shaped structure, with the lower part serving as a steel bar fixing seat 31 and the upper part serving as a support seat 32. The support seat 32 is provided with a groove 321 for positioning the steel bar 4. This design enables the steel bar 4 to be inserted into the sleeve 5 in a trumpet shape, thereby enabling the steel bar 4 to have a variable diameter and enter and exit the center hole of the cover plate 7.

[0034] Reference Figure 1 , Figure 2 , a method for using a motor vehicle coupling cover plate disassembly device, the method comprising the following steps:

[0035] 1): First, pass the steel bar 4 through the center hole of the cover plate 7;

[0036] 2): Pull the pull ring 2, the pull ring 2 drives the sleeve 5 to compress the spring 6, and at the same time the steel bar 4 is freed from the constraint of the sleeve 5, forming an open hook state, and the claw 41 at the top of the steel bar 4 is close to the bottom of the cover plate 7. At this time, the handle 1 is applied with force to complete the removal of the cover plate 7;

[0037] 3) Release the pull ring 2, and the sleeve 5 returns to its initial state under the action of the spring 6, and the steel bar 4 contracts under the constraint of the sleeve 5, so that the cover plate 7 is separated from the steel bar 4.

[0038] When the device is used to dismantle the cover plate 7, the steel bar 5 applies force evenly to the cover plate 7, thereby effectively preventing the cover plate from being deformed. In addition, the device acts on the cover plate 7, and can change the diameter of the cover plate 7 according to the size of the center hole of the cover plate to achieve entry and exit from the center hole of the cover plate 7. Moreover, the overall structure of the device is simple, and all control requirements can be achieved by single-handed operation, thereby accurately and efficiently completing the disassembly of the coupling cover plate in the coupling production process.

[0039] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A device for removing a coupling cover plate of an EMU, characterized in that: The invention comprises a handle (1), wherein a pull ring (2) is movably installed in the handle (1) via a connecting rod (21), a base (3) is fixedly installed on the handle (1), a steel bar (4) is fixedly connected to the base (3), a clamping claw (41) is arranged on the top of the steel bar (4), a sleeve (5) is fixedly connected to the top of the connecting rod (21), the steel bar (4) is inserted into the sleeve (5) and arranged in a trumpet shape, and a spring (6) is arranged between the sleeve (5) and the base (3); the steel bars (4) are four in number and are evenly distributed along the base (3).

2. The EMU coupling cover plate disassembly device according to claim 1, characterized in that: A pin (51) is inserted into the sleeve (5), and the spring (6) is installed between the pin (51) and the base (3).

3. The EMU coupling cover plate disassembly device according to claim 2 is characterized in that: There are two pins (51) arranged in a cross pattern.

4. The EMU coupling cover plate disassembly device according to claim 1, characterized in that: The base (3) is an I-shaped structure, with the lower portion serving as a steel bar fixing seat (31) and the upper portion serving as a support seat (32), and the support seat (32) is provided with a groove (321) for positioning the steel bar (4).

5. The EMU coupling cover plate disassembly device according to claim 1, characterized in that: The steel bar (4) is a spring steel bar.

6. The EMU coupling cover plate disassembly device according to claim 1, characterized in that: There are two connecting rods (21), which are distributed and fixed on both sides of the sleeve (5).

7. The EMU coupling cover plate disassembly device according to claim 6, characterized in that: The connecting rod (21) is movably connected to the handle (1).

8. The EMU coupling cover plate disassembly device according to claim 6, characterized in that: The connecting rod (21) is fixedly connected to the sleeve (5) via bolts.

9. A method for using the EMU coupling cover plate disassembly device according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: 1): First, pass the steel bar (4) through the center hole of the cover plate (7); 2): Pull the pull ring (2), the pull ring (2) drives the sleeve (5) to compress the spring (6), and at the same time the steel bar (4) is separated from the constraint of the sleeve (5), forming an open hook state, and the claw (41) at the top of the steel bar (4) is close to the bottom of the cover plate (7). At this time, the cover plate (7) can be disassembled by applying force to the handle (1); 3) The pull ring (2) is released, and the sleeve (5) returns to its initial state under the action of the spring (6), and the steel bar (4) contracts under the constraint of the sleeve (5), so that the cover plate (7) is separated from the steel bar (4).

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