Sleeve part dismounting device

Abstract

The utility model discloses a sleeve part dismounting device which is characterized in that a merging sleeve is arranged on a small-diameter section and located between a round nut and a large-diameter section, the merging sleeve is in sliding connection with the small-diameter section, and the merging sleeve is close to the large-diameter section to be attached to the large-diameter section; the round nut is in threaded connection with the small-diameter section, and the elastic piece is in sliding connection with the large-diameter section; the sliding blocks are movably located on the two sides of the elastic piece respectively, and part of the outer walls of the sliding blocks abut against the inner wall of the merging sleeve. All parts of the sleeve part dismounting device are assembled in a threaded connection mode, the structure is simple, a worker can conveniently assemble and dismount the parts, the worker can firstly rotate the round nut to push the merging sleeve, the merging sleeve extrudes the sliding block and then is directly placed in the inner sleeve, then the round nut is rotated in the opposite direction to enable the merging sleeve to be separated from the sliding block, and the worker can conveniently dismount the parts. The sliding block abuts against the inner wall of the inner sleeve, then the pull rod is horizontally pulled in the direction outside the outer sleeve hole, the inner sleeve and the outer sleeve can be detached, the detaching work of the inner sleeve and the outer sleeve is simplified, and meanwhile the labor intensity of workers is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of sleeve-type parts disassembly, and in particular to a sleeve-type parts disassembly device. Background Art

[0002] In the movable joints or rotating joints of some mechanical equipment, in order to achieve higher motion accuracy and wear resistance requirements, corresponding sleeve parts are often provided. The sleeve parts must be replaced or repaired after a period of use. The bushings provided in the through holes are generally easier to disassemble, while the grooved and / or flat bushings installed in the blind holes or the bushings installed in the through holes but the other side of the through holes cannot be placed with the tool due to other restrictions. In addition, the sleeve parts are difficult to remove due to the friction of the O-ring or the crystallization of the medium between the mating surfaces.

[0003] Therefore, there is an urgent need for a sleeve-type parts disassembly device that is easy to disassemble. Utility Model Content

[0004] The embodiment of the present application provides a sleeve-type parts disassembly device, which aims to simplify the structure and facilitate the installation and disassembly of the grooved inner sleeve in the deep hole.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a sleeve-type parts disassembly device, comprising an outer sleeve and an inner sleeve, the diameter of the outer sleeve is larger than the diameter of the inner sleeve, the inner sleeve is movably arranged in the inner cavity of the outer sleeve, and is characterized in that it comprises a pull rod, a round nut, a merging sleeve, a slider, and an elastic member; one end of the pull rod extends into the interior of the inner sleeve and is slidably connected to the interior of the inner sleeve; the pull rod comprises a large diameter section and a small diameter section; the periphery of the large diameter section is slidably connected to the inner wall of the inner sleeve; the small diameter section extends horizontally from a side of the large diameter section away from the inner sleeve, and a thread is provided on the rod body of the small diameter section; the merging sleeve is arranged on the small diameter section and is located between the round nut and the large diameter section, the merging sleeve is slidably connected to the small diameter section, and the side of the merging sleeve close to the large diameter section is fitted with the large diameter section; the round nut is arranged on the periphery of the small diameter section and is threadedly connected to the small diameter section, and can approach or move away from the large diameter section; the elastic member is arranged inside the large diameter section and is slidably connected to the large diameter section; the slider is movably arranged inside the large diameter section and is respectively located on both sides of the elastic member, and part of the outer wall of the slider is in conflict with the inner wall of the merging sleeve.

[0006] Furthermore, it also includes a bracket, one end of which abuts against the end face of the outer sleeve close to the large diameter section, the bracket is provided with a through hole for the small diameter section to pass through along the axial direction of the inner sleeve, and a locking nut is provided on the side of the bracket away from the large diameter section, one end face of the locking nut abuts against the bracket, and the locking nut is threadedly connected to the rod body of the small diameter section.

[0007] Furthermore, the large diameter section is disc-shaped, and a light hole is unidirectionally penetrated through the large diameter section along its radial direction. The elastic member is arranged in the light hole, and the interior of the light hole is slidably connected to the elastic member.

[0008] Furthermore, the slider is arranged in the light hole and is respectively located at two ends of the elastic member, and the outer wall of the slider is slidably connected to the inner wall of the light hole.

[0009] Furthermore, a groove is opened outwardly in the radial direction at one end of the inner sleeve close to the large diameter section, and a protrusion is extended upward at the end of the slider away from the elastic member. The connection between the protrusion and the slider is an inclined surface from bottom to top. The protrusion is embedded in the groove, and the outer wall of the protrusion is slidably connected to the groove wall of the groove.

[0010] Furthermore, a mounting hole for placing the elastic member is provided at one end of the sliding block away from the protrusion along the length direction of the light hole, and the diameter of the mounting hole is consistent with the outer diameter of the elastic member.

[0011] Furthermore, the contact portion between the merging sleeve and the side surface of the large diameter section is an inclined surface, the side surface of the large diameter section is a conical surface, and the inner wall of the merging sleeve is in contact with the side surface of the large diameter section.

[0012] Furthermore, a gasket is arranged between the locking nut and the bracket, one side of the gasket is against the locking nut, and the other side of the gasket is against the bracket, and the gasket is slidably connected to the small-diameter section.

[0013] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0014] The various components of the sleeve-type parts disassembly device of the present application are assembled by threaded connection, which has a simple structure and is convenient for workers to assemble and disassemble. The workers can first rotate the round nut to push the merging sleeve so that the merging sleeve can be squeezed by the slider and then directly placed in the inner sleeve, and then rotate the round nut in the opposite direction to separate the merging sleeve from the slider, and then press the slider against the inner wall of the inner sleeve, and then pull the pull rod horizontally in the direction outside the outer sleeve hole to complete the disassembly of the inner sleeve and the outer sleeve, thereby simplifying the disassembly work of the inner sleeve and the outer sleeve and reducing the labor intensity of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments of the utility model or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 An exploded view of an embodiment of the present application in an assembled state;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure in a cross-sectional state;

[0018] Figure 3 A schematic diagram of the structure of the pull rod provided in the embodiment of the present application;

[0019] Figure 4 A schematic diagram of the structure of a slider provided in an embodiment of the present application;

[0020] Figure 5 A schematic diagram of the structure of the merging sleeve provided in an embodiment of the present application.

[0021] Icons: 10-pull rod; 11-large diameter section; 111-bright hole; 12-small diameter section; 13-elastic part; 14-slider; 141-mounting hole; 142-protrusion; 15-round nut; 20-merging sleeve; 201-through hole; 30-bracket; 31-locking nut; 32-gasket; 40-inner sleeve; 401-groove; 50-outer sleeve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model 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 cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0024] Combination Figure 1-Figure 5As shown, a sleeve-type parts disassembly device includes an outer sleeve 50 and an inner sleeve 40, wherein the diameter of the outer sleeve 50 is larger than the diameter of the inner sleeve 40, and the inner sleeve 40 is movably arranged in the inner cavity of the outer sleeve 50, and is characterized in that it includes a pull rod 10, a round nut 15, a merging sleeve 20, a slider 14, and an elastic member 13; one end of the pull rod 10 extends into the interior of the inner sleeve 40 and is slidably connected to the interior of the inner sleeve 40; the pull rod 10 includes a large-diameter section 11 and a small-diameter section 12; the periphery of the large-diameter section 11 is slidably connected to the inner wall of the inner sleeve 40; the small-diameter section 12 extends horizontally from a side of the large-diameter section 11 away from the inner sleeve 40, and the rod of the small-diameter section 12 A thread is provided; the merging sleeve 20 is arranged on the small diameter section 12 and is located between the round nut 15 and the large diameter section 11, the merging sleeve 20 is slidably connected to the small diameter section 12, and the side of the merging sleeve 20 close to the large diameter section 11 is in contact with the large diameter section 11; the round nut 15 is arranged on the periphery of the small diameter section 12 and is threadedly connected to the small diameter section 12, and can approach or move away from the large diameter section 11; the elastic member 13 is arranged inside the large diameter section 11 and is slidably connected to the large diameter section 11; the slider 14 is movably arranged inside the large diameter section 11 and is respectively located on both sides of the elastic member 13, and part of the outer wall of the slider 14 is in contact with the inner wall of the merging sleeve 20.

[0025] The sleeve parts disassembly device in the present application is mainly used in the disassembly and / or installation operation scenario of the grooved inner sleeve 40 from the inner deep hole of the outer sleeve 50. It is composed of a pull rod 10, a round nut 15, a combined sleeve 20, a slider 14, and an elastic member 13. The pull rod 10 is a convex structure with a large diameter section and a small diameter section. The round nut 15 and the combined sleeve 20 are threadedly connected to the small diameter section 12 of the pull rod 10 in sequence, and the elastic member 13 and the sliders 14 respectively arranged at both ends of the elastic member 13 are slidably connected to the inside of the large diameter section 11. The staff can manually or mechanically rotate the round nut 15 clockwise to make the round nut 15 approach the side of the large diameter section 11 on the small diameter section 12. When the round nut 15 approaches the large diameter section 11, it drives the combined sleeve 20 to move toward the large diameter section 11, so that the inner wall of the combined sleeve 20 fits the outer side of the large diameter section 11. Under the continuous pushing action of the round nut 15, the inner wall of the combined sleeve 20 continuously abuts against the outer wall of the slider 14, and the slider 14 is pressed into the inside of the large diameter section 11, and the slider 14 is constrained inside the large diameter section 11. Then the pull rod 10 extends into the internal chamber of the inner sleeve 40, and then the round nut 15 is rotated counterclockwise to make the combined sleeve 20 move away from the large diameter section 11. The slider 14 extends from the inside of the large diameter section 11 due to the reaction force of the elastic member 13 and abuts against the inner wall of the inner sleeve 40. Finally, the inner sleeve 40 is taken out from the hole of the outer sleeve 50 by pulling the pull rod 10.

[0026] The various parts of the sleeve-type parts disassembly device of the present application are assembled in a threaded connection manner, which has a simple structure and is convenient for workers to assemble and disassemble. Secondly, the worker can first rotate the round nut 15 to push the combined sleeve 20, so that the combined sleeve 20 squeezes the slider 14 and is directly placed in the inner sleeve 40, and then rotate the round nut 15 in the opposite direction to separate the combined sleeve 20 from the slider 14, and then push the slider 14 against the inner wall of the inner sleeve 40, and then pull the pull rod 10 horizontally in the direction outside the hole of the outer sleeve 50 to complete the disassembly of the inner sleeve 40 and the outer sleeve 50, simplifying the disassembly work of the inner sleeve 40 and the outer sleeve 50 while reducing the labor intensity of the workers.

[0027] The bracket 30 also includes a bracket 30, one end of which abuts against an end face of the outer sleeve 50 close to the large diameter section 11, and the bracket 30 is provided with a through hole 201 for the small diameter section 12 to pass through along the axial direction of the inner sleeve 40, and a locking nut 31 is provided on the side of the bracket 30 away from the large diameter section 11, one end face of the locking nut 31 abuts against the bracket 30, and the locking nut 31 is threadedly connected to the rod body of the small diameter section 12.

[0028] In the above scheme, the bracket 30 is provided to support the small diameter section 12 on the one hand, and to avoid safety accidents caused by the uneven force direction of the small diameter section 12 when the staff pulls the pull rod 10, which may cause the small diameter section 12 to break or deform. The locking nut 31 is provided on the small diameter section 12, and the staff can rotate the locking nut 31 to move it to the side of the large diameter section 11, so that the end of the bracket 30 close to the large diameter section 11 abuts against one end of the outer sleeve 50. During the continuous rotation of the locking nut 31, the small diameter section 12 generates a force away from the outer sleeve 50, so that the large diameter section 11 drags the inner sleeve 40, so that the inner sleeve 40 and the outer sleeve 50 are separated, and the disassembly operation of the inner sleeve 40 and the outer sleeve 50 is completed.

[0029] The large diameter section 11 is in the shape of a disk, and a light hole 111 is unidirectionally passed through the large diameter section 11 along its radial direction. The elastic member 13 is arranged in the light hole 111, and the interior of the light hole 111 is slidably connected with the elastic member 13. The large diameter section 11 is arranged in the shape of a disk, so that it is convenient to open the light hole 111 and facilitate the contact between the large diameter section 11 and the inner sleeve 40, and provide installation space for the elastic member 13.

[0030] The slider 14 is disposed in the light hole 111 and is located at both ends of the elastic member 13, and the outer wall of the slider 14 is slidably connected to the inner wall of the light hole 111. The purpose of this arrangement is to utilize the reaction force generated by the elastic member 13 to move the slider 14 closer to or farther from the outer wall of the large diameter section 11 in the light hole 111, so that the slider 14 and the inner sleeve 40 can be matched.

[0031] A groove 401 is formed outwardly along the radial direction at one end of the inner sleeve 40 close to the large diameter section 11, and a protrusion 142 is extended upward at one end of the slider 14 away from the elastic member 13. The connection between the protrusion 142 and the slider 14 is an inclined surface from bottom to top. The protrusion 142 is embedded in the groove 401, and the outer wall of the protrusion 142 is slidably connected to the groove wall of the groove 401.

[0032] In the above-mentioned file, the setting of the groove 401 provides a movable space for the protrusion 142 and the inner sleeve 40 to be flexibly connected. On the other hand, the groove 401 also provides a guide for the cooperation between the protrusion 142 and the inner sleeve 40. The protrusion 142 is embedded in the groove 401, and the outer side surface of the protrusion 142 is flexibly connected to the inner wall of the groove 401. This is to ensure that when the staff pulls the pull rod 10, the protrusion 142 can be used to press against the inner wall of the groove 401 to remove the inner sleeve 40 from the deep hole of the outer sleeve 50.

[0033] An installation hole 141 for placing the elastic member 13 is formed at one end of the slider 14 away from the protrusion 142 along the length direction of the light hole 111 . The diameter of the installation hole 141 is consistent with the outer diameter of the elastic member 13 .

[0034] The above scheme is to use the mounting hole 141 as a mounting seat at one end of the elastic member 13, and the sliders 14 respectively arranged at both ends of the elastic member 13 provide a two-way mounting seat for the elastic member 13, thereby avoiding bending or deformation of the elastic member 13 during compression or release of the elastic member 13, thereby ensuring that the slider 14 can stably move in the light hole 111.

[0035] The contact part between the merging sleeve 20 and the side of the large diameter section 11 is an inclined surface, the side of the large diameter section 11 is a conical surface, and the inner wall of the merging sleeve 20 is in contact with the side of the large diameter section 11. In the process of rotating the round nut 15 to push the merging sleeve 20 to move, the contact between the merging sleeve 20 and the large diameter section 11 is gradual. This setting not only facilitates the staff to adjust the position of the large diameter section 11 and the inner sleeve 40 in time, but also ensures that the slider 14 can respond stably when the merging sleeve 20 abuts against the slider 14, avoiding the slider 14 from being separated from the large diameter section 11 due to the reaction force of the elastic member 13.

[0036] A gasket 32 ​​is provided between the locking nut 31 and the bracket 30, one side of the gasket 32 ​​is against the locking nut 31, the other side of the gasket 32 ​​is against the bracket 30, and the gasket 32 ​​is slidably connected to the small diameter section 12. The provision of the gasket 32 ​​can protect the contact surface between the bracket 30 and the locking nut 31, and ensure the service life of the bracket 30.

[0037] The elastic member 13 in the present application is a component with elastic potential energy such as a spring. Those skilled in the art can directly adopt the spring in the prior art and apply it to the present application. The present application does not limit the material of the spring.

[0038] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0039] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A sleeve-type parts disassembly device, comprising an outer sleeve (50) and an inner sleeve (40), wherein the diameter of the outer sleeve (50) is larger than the diameter of the inner sleeve (40), and the inner sleeve (40) is movably arranged in the inner cavity of the outer sleeve (50), characterized in that: It comprises a pull rod (10), a round nut (15), a merging sleeve (20), a sliding block (14), and an elastic member (13); One end of the pull rod (10) extends into the interior of the inner sleeve (40) and is slidably connected inside the inner sleeve (40); The pull rod (10) comprises a large diameter section (11) and a small diameter section (12); the periphery of the large diameter section (11) is slidably connected to the inner wall of the inner sleeve (40); the small diameter section (12) extends horizontally from a side of the large diameter section (11) away from the inner sleeve (40), and a thread is formed on the rod body of the small diameter section (12); The merging sleeve (20) is arranged on the small diameter section (12) and is located between the round nut (15) and the large diameter section (11); the merging sleeve (20) is slidably connected to the small diameter section (12); and a side of the merging sleeve (20) close to the large diameter section (11) is in contact with the large diameter section (11); The round nut (15) is arranged on the periphery of the small diameter section (12) and is threadedly connected to the small diameter section (12), and can move closer to or farther from the large diameter section (11); The elastic member (13) is arranged inside the large diameter section (11) and is slidably connected to the large diameter section (11); The slider (14) is movably arranged inside the large diameter section (11) and is respectively located on both sides of the elastic member (13), and a portion of the outer wall of the slider (14) abuts against the inner wall of the merging sleeve (20).

2. The sleeve parts disassembly device according to claim 1 is characterized in that: The invention also comprises a bracket (30), one end of which is pressed against an end face of the outer sleeve (50) close to the large diameter section (11), the bracket (30) is provided with a through hole (201) for the small diameter section (12) to pass through along the axial direction of the inner sleeve (40), a locking nut (31) is provided on a side of the bracket (30) away from the large diameter section (11), one end face of the locking nut (31) is pressed against the bracket (30), and the locking nut (31) is threadedly connected to the shaft of the small diameter section (12).

3. The sleeve parts disassembly device according to claim 1, characterized in that: The large diameter section (11) is in the shape of a disk, and is penetrated by a light hole (111) along its radial direction. The elastic member (13) is arranged in the light hole (111), and the interior of the light hole (111) is slidably connected to the elastic member (13).

4. The sleeve parts disassembly device according to claim 3 is characterized in that: The slider (14) is arranged in the light hole (111) and is respectively located at two ends of the elastic member (13); the outer wall of the slider (14) is slidably connected to the inner wall of the light hole (111).

5. The sleeve parts disassembly device according to claim 4 is characterized in that: The inner sleeve (40) has an end close to the large diameter section (11) with a groove (401) extending outwardly in its radial direction, and the slider (14) has an end away from the elastic member (13) with a protrusion (142) extending upward, the connection between the protrusion (142) and the slider (14) is an inclined surface from bottom to top, the protrusion (142) is embedded in the groove (401), and the outer wall of the protrusion (142) is slidably connected to the groove wall of the groove (401).

6. The sleeve parts disassembly device according to claim 5, characterized in that: An installation hole (141) for placing the elastic member (13) is provided at one end of the sliding block (14) away from the protrusion (142) along the length direction of the light hole (111), and the hole diameter of the installation hole (141) is consistent with the outer diameter of the elastic member (13).

7. The sleeve parts disassembly device according to claim 1, characterized in that: The contact portion between the merging sleeve (20) and the side surface of the large diameter section (11) is an inclined surface, the side surface of the large diameter section (11) is a conical surface, and the inner wall of the merging sleeve (20) is in contact with the side surface of the large diameter section (11).

8. The sleeve parts disassembly device according to claim 2, characterized in that: A gasket (32) is provided between the locking nut (31) and the bracket (30), one side of the gasket (32) is in contact with the locking nut (31), and the other side of the gasket (32) is in contact with the bracket (30), and the gasket (32) is slidably connected to the small-diameter section (12).

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