A disassembly device

Abstract

The utility model belongs to the technical field of spare parts dismounting and discloses a dismounting device, which comprises a fixing seat, the fixing seat is overlapped on a fixed part, a dismounting screw, the tip of the dismounting screw is inserted into a fastening pin between a connected part and the fixed part through a screwed nut, the head of the dismounting screw is arranged in cooperation with the fixing seat, a spring is arranged between the head of the dismounting screw and the screwed nut, the screwed nut is tightened until the dismounting device is tightened with the fastening pin, the fixing between the connected part and the fixed part is completed, the screwed nut is loosened until the fastening pin is separated from the connected part under the rebound force of the dismounting screw combined with the spring, and the dismounting between the connected part and the fixed part is completed. The technical scheme can complete the quick dismounting of the fastening pin under the condition that the space is limited.

Description

Technical Field

[0001] This utility model belongs to the field of component disassembly technology, and in particular relates to a disassembly device. Background Technology

[0002] Coal mining machine components are often secured with fastening pins to enhance connection rigidity and thus ensure the stability of equipment operation. Conventional fixing methods include... Figure 1 As shown. However, under thin coal seam mining conditions, the working space is limited in height, and other structures or equipment often form obstacles within a certain distance around the fastener, making it difficult for conventional disassembly tools to access the fastening pin, which brings difficulties to later maintenance and replacement. Utility Model Content

[0003] The purpose of this invention is to provide a disassembly device to solve the problems existing in the prior art.

[0004] To achieve the above objectives, this utility model provides a disassembly device, comprising: The fixing seat overlaps the fixed part; The release screw has its tip inserted into the fastening pin between the connected part and the fixed part through a screw-in nut. The head of the release screw is configured to cooperate with the fixing seat. A spring is provided between the head of the release screw and the screw-in nut. The connection and the fixed part can be fixed and disconnected by rotating the screw-in nut.

[0005] Tighten the engagement nut until the disengagement device and the fastening pin are tightened, thus securing the connected and fixed parts; loosen the engagement nut until the release screw, combined with the spring's rebound force, causes the fastening pin to disengage from the connected parts, thus separating the connected and fixed parts.

[0006] Optionally, the retaining seat can move along the axial direction of the removal screw.

[0007] Optionally, the fixing base includes an upper structure and a lower structure. The upper structure is a plane that overlaps the fixed part. The lower structure has a through hole at the beginning, and the head of the release screw is configured to cooperate with the through hole.

[0008] Optionally, the through hole is an oblong hole, with a flat surface in the middle and semicircles of equal radius on both sides.

[0009] The technical effects of this utility model are as follows: The disassembly device provided by this utility model combines the rebound effect of a spring with a movable fixing seat. In confined spaces and in the presence of obstructions, the fastening pin can be quickly removed by rotating the screw nut. When there are no obstructions, the disassembly device of this utility model still has advantages. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are 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.

[0011] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the conventional fixing methods between components of a coal mining machine; Figure 2 This is a schematic diagram of the disassembly device in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the fixing base in an embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of the detachment screw in an embodiment of this utility model; Figure 5 This is a schematic diagram illustrating the fit between the fixing base and the removal screw in an embodiment of this utility model; Figure 6 This is a schematic diagram of the compressed spring reaching its limit position in an embodiment of this utility model; Figure 7 This is a schematic diagram of the intermediate disassembly state in an embodiment of this utility model; Figure 8 This is a schematic diagram showing the position of the locating pin being removed in an embodiment of this utility model.

[0012] Labeling Explanation: 1. Connected part; 2. Fastening pin; 3. Fixed part; 4. Barrier; 5. Removal screw; 6. Engaging nut; 7. Spring; 8. Fixing base. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0014] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0015] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only. The terms “include,” “including,” “have,” “contain,” etc., used in this article are all open-ended terms, meaning that they include but are not limited to.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] In the existing technology, coal mining machine components are commonly fixed with fastening pins 2 to enhance the connection effect, as follows: Figure 1 As shown, under normal conditions, the right side of the fixed part 3 is open, and the fastening pin 2 can be removed using ordinary dismantling tools. However, due to the limited space in the thin coal seam, obstructions 4 often appear within a certain distance from the fixed part 3, making it impossible to use conventional dismantling tools.

[0019] To solve the above problems, such as Figure 2-8 As shown, this embodiment provides a disassembly device, including: Fixing seat 8, which overlaps the fixed member 3; The release screw 5 is inserted into the fastening pin 2 between the connected part 1 and the fixed part 3 through the engagement nut 6. The head of the release screw 5 is configured to cooperate with the fixing seat 8. A spring 7 is provided between the head of the release screw 5 and the engagement nut 6. The connection between the connected part 1 and the fixed part 3 can be fixed and disconnected by rotating the engagement nut 6.

[0020] The disassembly device provided in this embodiment includes the following components: Remove screw 5: Screw in fastening pin 2 to connect the two as one unit; its structure is as follows Figure 4 As shown, the head has a radius of R and a flat section of length d for mating with the fixing base 8; Engaging nut 6: After rotating the engaging nut 6 with a tool, due to the relative motion, the disengaging screw 5 moves axially, bringing out the fastening pin 2; Spring 7: Used to provide initial axial force for the disassembly device; the rebound action of spring 7 facilitates quick and easy removal of fastening pin 2.

[0021] Fixing base 8: One end rests on the fixed part 3, serving as a circumferential limit; the other end mates with the head of the release screw 5, allowing only axial freedom; the specific structure of fixing base 8 is as follows Figure 3 As shown, its upper part is a flat surface used to overlap the fixed part 3. Its lower structure has a waist-shaped hole, with semicircles of radius R on both sides of the waist-shaped hole and a distance d between the centers of the two circles. The middle of the waist-shaped hole is a flat surface of length d, used to mate with the head plane of the release screw 5. The mating between the release screw 5 and the fixing seat 8 is as follows. Figure 5 As shown.

[0022] It is feasible to set multiple sets of screw nuts 6 with different thicknesses to accommodate connectors of different depths and thicknesses; The dismantling process of the dismantling device provided in this embodiment is as follows: (1) such as Figure 6 As shown, tighten the engagement nut 6 to compress the spring 7 to its limit position; (2) such as Figure 2 As shown, tighten the disassembly device and fastening pin 2. At this time, the distance between the end of the disassembly screw 5 and the connected part 1 is L0. (3) such as Figure 7 As shown, with the help of the spring 7, after loosening the screw 6, the screw 5 is removed, which causes the fastening pin 2 to move in the axial direction by a distance of L1. The distance that the fastening pin 2 moves is (L0-L1). (4) such as Figure 8 As shown, continue to loosen the screw nut 6 until the disengaging screw 5 drives the fastening pin 2 to disengage from the connected part 1, thus completing the disassembly of the fastening pin 2.

[0023] In summary, this embodiment combines the rebound effect of the spring 7 with the movable fixing seat 8. In confined spaces and in the presence of obstructions 4, the fastening pin 2 can be quickly removed by rotating the screw nut 6. When there are no obstructions 4, the disassembly device of this embodiment still has advantages.

[0024] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A disassembly device, characterized in that, include: A fixing seat (8) is attached to the fixed member (3); The tip of the release screw (5) is inserted into the fastening pin (2) between the connected part (1) and the fixed part (3) through the engagement nut (6). The head of the release screw (5) is fitted with the fixing seat (8). A spring (7) is provided between the head of the release screw (5) and the engagement nut (6). The connection between the connected part (1) and the fixed part (3) is fixed and disconnected by rotating the engagement nut (6).

2. The apparatus according to claim 1, characterized in that, The fixing seat (8) can move along the axial direction of the removal screw (5).

3. The apparatus according to claim 1, characterized in that, The fixing seat (8) includes an upper structure and a lower structure. The upper structure is a plane and overlaps the fixed part (3). The lower structure has a through hole, and the head of the release screw (5) is set to cooperate with the through hole.

4. The apparatus according to claim 3, characterized in that, The through hole is an oblong hole, with a flat surface in the middle and semicircles of equal radius on both sides.

Images