Sleeve taking device

Abstract

The utility model provides a sleeve taking device. The sleeve taking device comprises an abutting cylinder, a rotating sleeve, a lifting cylinder, a plurality of outwards-extending claws and a push rod. The rotating sleeve and the pressing cylinder are coaxially arranged, and the rotating sleeve is rotationally connected with the pressing cylinder; the lifting cylinder is in threaded connection with the interior of the rotating sleeve and is driven by rotation of the rotating sleeve to move in the axial direction of the abutting cylinder; a plurality of overhanging claws are respectively connected to the lower part of the lifting cylinder, and the lower ends of the overhanging claws can extend outwards so as to be clamped in the lower end groove of the eccentric sleeve; the push rod is slidably connected into the lifting cylinder in the axial direction of the lifting cylinder, and the periphery of the push rod is sleeved with an elastic piece. According to the sleeve taking device, the abutting cylinder abuts against the top face of a sleeper, the lifting cylinder enters the eccentric sleeve, the outwards-extending claw extends into the lower end groove of the eccentric sleeve, the push rod is pushed downwards to limit the inner wall of the outwards-extending claw, the outwards-extending claw is stably located in the lower end groove, and therefore the sleeve taking device can take the sleeve out of the sleeper. The rotary sleeve is driven to rotate so that the lifting cylinder drives the eccentric sleeve to be separated from the sleeper, and the taking-out efficiency of the eccentric sleeve is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of eccentric sleeve removing devices, and more specifically relates to a sleeve remover. Background Art

[0002] Currently, during railway track maintenance, it is often necessary to remove the eccentric sleeves from sleepers. Traditional methods of removing them using calipers or crowbars are not only difficult to operate, but also prone to damage to the sleepers, affecting their performance.

[0003] In the prior art, although there is a tool for removing the eccentric sleeve by screwing, in actual use, the outward-extending claws at the bottom of the tool often encounter great resistance when extending into the interior of the eccentric sleeve, affecting the smooth installation of the tool. In addition, when removing the eccentric sleeve, there is often a problem of the eccentric sleeve slipping out of the lower end groove of the eccentric sleeve, which affects the removal efficiency of the eccentric sleeve and increases the difficulty of removing the eccentric sleeve. Utility Model Content

[0004] The purpose of the utility model is to provide a sleeve remover, which can remove the eccentric sleeve conveniently and quickly, is easy to operate, and reduces the difficulty of removing the eccentric sleeve.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a sleeve remover, comprising:

[0006] A pressing cylinder, the lower end surface of which is used to press against the top surface of the sleeper;

[0007] The rotating sleeve is coaxially arranged with the pressing cylinder and is rotatably connected to the pressing cylinder;

[0008] The lifting cylinder is threadedly connected to the rotating sleeve and is used to extend the axial movement of the pressing cylinder under the rotation of the rotating sleeve;

[0009] A plurality of outward extending claws are respectively connected to the lower part of the lifting cylinder, and the lower ends of the outward extending claws can be extended outward to be clamped in the lower end groove of the eccentric sleeve;

[0010] The push rod is connected to the lifting cylinder by sliding along the axial direction of the lifting cylinder. An elastic member is provided on the outer periphery of the push rod. The upper end of the elastic member is connected to the upper end of the push rod, and the lower end is pressed against the upper end of the outward-extending claw. The elastic member can elastically push the push rod upward so that the push rod avoids the outward-extending claw when the outward-extending claw is retracted. The elastic member can also elastically push the outward-extending claw downward so that the lower end of the outward-extending claw extends outward and enters the lower end groove of the eccentric sleeve.

[0011] In one possible implementation, a plurality of through grooves corresponding to the outward-extending claws are provided on the peripheral wall of the lifting cylinder, and the upper end of the outward-extending claw is provided with an extension portion hooked in the through groove, and the thickness of the extension portion is smaller than the height of the through groove. The lower end of the push rod has a small-diameter end that is retracted inward, and the small-diameter end can move to the inner side of the upper end of the outward-extending claw to limit the outward-extending claw when the push rod is driven to move upward.

[0012] In some embodiments, the upper end of the outward extending claw is provided with a pressing inclined surface arranged close to the peripheral wall of the push rod, and the elastic member can elastically press against the pressing inclined surface to keep the outward extending claw in an outward extending state.

[0013] In a possible implementation, a guide surface extending outward and upward in an arc shape is provided at the bottom of the outward-extending claw, and the guide surface is used to press against the upper end surface of the eccentric sleeve to make the outward-extending claw retract and enter the eccentric sleeve.

[0014] In a possible implementation, a downwardly extending gripping portion is provided at the lower end of the outrigger claw, and the gripping portion is used to drive the outrigger claw to retract toward the axial center side of the lifting cylinder so that the outrigger claw is released from above the eccentric sleeve.

[0015] In a possible implementation, an operating ball is provided at the upper end of the push rod, and a bottom threaded hole is provided at the bottom of the operating ball for threaded connection with the push rod.

[0016] In a possible implementation, the upper end of the lifting cylinder is connected to a threaded sleeve, and the push rod is threadedly connected to the threaded sleeve. The push rod can press down the elastic member and cooperate with the threaded sleeve to lock the axial position of the push rod.

[0017] In some embodiments, gripping handles extending outward and upward are symmetrically provided on both sides of the rotating sleeve, and the diameters of the extending ends of the gripping handles gradually increase.

[0018] In one possible implementation, the upper end of the pressure cylinder is provided with an upper support seat that rotates with the rotating sleeve, the upper support seat is provided with a mounting groove that opens upward, a pressure bearing is provided in the mounting groove, a limit ring is provided in the mounting groove above the pressure bearing, and the outer periphery of the lifting cylinder is provided with a limit ring located below the upper support seat.

[0019] In one possible implementation, the lower end of the pressure cylinder is provided with an extended ring seat extending outward to press against the top surface of the sleeper, and a plurality of weight-reducing holes are provided on the peripheral wall of the pressure cylinder. The weight-reducing holes are oblong holes, and the long axis of the oblong holes extends along the axial direction of the pressure cylinder.

[0020] Compared with the prior art, the solution shown in the embodiment of the present application utilizes a pressing cylinder to press on the top surface of the sleeper, so that the lifting cylinder enters the eccentric sleeve and the outward claw extends into the lower end groove of the eccentric sleeve, and the inner wall of the outward claw is limited by pushing the push rod downward, so that the outward claw is stably in the lower end groove, and the rotating sleeve is driven to rotate so that the lifting cylinder drives the eccentric sleeve to separate from the sleeper, and finally the upward push rod retracts the outward claw to separate the eccentric sleeve from the sleeve remover. The above structure can ensure the effective engagement between the outward claw and the lower end groove during the lifting process of the eccentric sleeve, ensure the lifting and removal of the eccentric sleeve, improve the operating efficiency, and realize the rapid removal of the eccentric sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 A schematic diagram of the explosion structure of the sleeve remover provided in an embodiment of the utility model;

[0023] Figure 2 For the embodiment of the utility model Figure 1 A schematic diagram of the main cross-sectional structure of the middle sleeve remover;

[0024] Figure 3 For the embodiment of the utility model Figure 2 Schematic diagram of the partially enlarged structure of middle Ⅰ;

[0025] Figure 4 For the embodiment of the utility model Figure 2 Schematic diagram of the partially enlarged structure of middle II;

[0026] Figure 5 For the embodiment of the utility model Figure 1 Schematic diagram of the structure of the sleeve remover;

[0027] Figure 6 This is a schematic cross-sectional structural diagram of a sleeper and an eccentric sleeve provided in an embodiment of the present invention.

[0028] Among them, the reference numerals in the figures are:

[0029] 1. Pressure cylinder; 11. Upper support seat; 12. Mounting groove; 13. Lightening hole; 14. Pressure bearing; 15. Extension ring seat; 16. Limiting ring; 2. Rotating sleeve; 21. Holding handle; 3. Lifting cylinder; 31. Through groove; 32. Limiting ring; 33. Threaded sleeve; 34. Elastic member; 4. Outward claw; 41. Extension part; 42. Holding part; 43. Guide surface; 44. Pressure inclined surface; 5. Push rod; 51. Small diameter end; 52. Operating ball; 53. Pressure ring; 61. Sleeper; 62. Eccentric sleeve; 63. Lower end groove. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 invention. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "several" means two or more, unless otherwise clearly and specifically defined.

[0032] Please also refer to Figures 1 to 6The sleeve remover provided by the present invention is now described. The sleeve remover includes a pressing cylinder 1, a rotating sleeve 2, a lifting cylinder 3, a plurality of outward-extending claws 4, and a push rod 5. The lower end surface of the pressing cylinder 1 is used to press against the top surface of the sleeper 61; the rotating sleeve 2 is coaxially arranged with the pressing cylinder 1 and is rotatably connected to the pressing cylinder 1; the lifting cylinder 3 is threadedly connected to the rotating sleeve 2 and is used to extend the axial movement of the pressing cylinder 1 under the rotation of the rotating sleeve 2; a plurality of outward-extending claws 4 are respectively connected to the lower part of the lifting cylinder 3, and the lower ends of the outward-extending claws 4 can be extended to be clamped in the lower end groove 63 of the eccentric sleeve 62; The push rod 5 is coaxially arranged in the lifting cylinder 3 and can move axially along the lifting cylinder 3. The lower end of the push rod 5 has a small diameter end 51 that is retracted inward. The outer periphery of the push rod 5 is sleeved with an elastic member 34. The upper end of the elastic member 34 is connected to the upper end of the push rod 5, and the lower end is pressed against the upper end of the outward extending claw 4. The elastic member 34 can elastically push the push rod 5 upward so that the push rod 5 avoids the outward extending claw 4 when the outward extending claw 4 is retracted. The elastic member 34 can also elastically push the outward extending claw 4 downward so that the outer end of the outward extending claw 4 extends outward to enter the lower end groove 63 of the eccentric sleeve 62.

[0033] Compared with the prior art, the sleeve remover provided in this embodiment utilizes the pressing cylinder 1 to press on the top surface of the sleeper 61, so that the lifting cylinder 3 enters the eccentric sleeve 62 and the outward claw 4 extends into the lower end groove 63 of the eccentric sleeve 62, and the inner wall of the outward claw 4 is limited by pushing the push rod 5 downward, so that the outward claw 4 is stably in the lower end groove 63, and the rotating sleeve 2 is driven to rotate so that the lifting cylinder 3 drives the eccentric sleeve 62 to separate from the sleeper 61, and finally the push rod 5 is moved upward to retract the outward claw 4 to separate the eccentric sleeve 62 from the sleeve remover. The above structure can ensure the effective engagement between the outward claw 4 and the lower end groove 63 during the lifting process of the eccentric sleeve 62, ensure the lifting and removal of the eccentric sleeve 62, improve the operating efficiency, and realize the rapid removal of the eccentric sleeve 62.

[0034] In one possible implementation, see Figures 1 to 6 The peripheral wall of the lifting cylinder 3 is provided with a plurality of through grooves 31 corresponding to the outward-extending claws 4. The upper end of the outward-extending claw 4 is provided with an extension portion 41 hooked in the through groove 31. The thickness of the extension portion 41 is less than the height of the through groove 31. The lower end of the push rod 5 has an inwardly contracted small-diameter end 51. The small-diameter end 51 can move to the inner side of the upper end of the outward-extending claw 4 to limit the outward-extending claw 4 when the push rod 5 is driven to move upward.

[0035] In this embodiment, the lifting cylinder 3 is provided with a through-slot 31 into which the extension portion 41 of the upper end of the outrigger claw 4 extends, thereby forming a relatively rotational connection between the outrigger claw 4 and the lifting cylinder 3. The outrigger claw 4 can vertically swing about the aforementioned hooking portion, causing the outrigger claw 4 to retract toward the center of the lifting cylinder 3 and enter the eccentric sleeve 62. Thereafter, the outrigger claw 4 can vertically swing about the aforementioned hooking portion in the other direction, causing the outrigger claw 4 to retract toward the center of the lifting cylinder 3 and enter the eccentric sleeve 62.

[0036] The thickness of the extension portion 41 is less than the height of the through-slot 31, allowing room for the outrigger claw 4 to switch between the extended and retracted positions. In its natural state, the push rod 5 moves upward under the upward elastic force of the elastic member 34, causing the smaller diameter end 51 of the push rod 5 to axially align with the extension portion 41 of the outrigger claw 4. This prevents the outrigger claw 4 from disengaging from the through-hole of the lifting cylinder 3 and ensures the axial stability of the outrigger claw 4 relative to the lifting cylinder 3. When the push rod 5 is pushed downward to the inner center of the plurality of outrigger claws 4, the outer wall of the push rod 5 contacts the inner wall of the outrigger claw 4, restraining the outrigger claw 4 from retracting inward and maintaining the outrigger claw 4 in the extended position. This allows the outrigger claw 4 to remain stably positioned within the lower end slot 63, preventing it from loosening when the lifting cylinder 3 drives the eccentric sleeve 62 upward.

[0037] For some examples, see Figures 1 to 6 The upper end of the outward extending claw 4 is provided with a pressing inclined surface 44 arranged near the peripheral wall of the push rod 5, and the elastic member 34 can elastically press against the pressing inclined surface 44 to keep the outward extending claw 4 in an outward extending state.

[0038] In this embodiment, a pressing inclined surface 44 is provided at the upper end of the elastic member 34 near the axis of the push rod 5 . The pressing inclined surface 44 can maintain the stability of the extended state of the extended claw 4 under the elastic pressing action of the elastic member 34 .

[0039] Furthermore, a first inclined surface is provided in the lifting cylinder 3, which is located below the through groove 31 and extends outward and downward, and a second inclined surface is provided on the outer wall of the outward-extending claw 4, which contacts and cooperates with the first inclined surface. When the outward-extending claw 4 is in an extended state, the first inclined surface of the outward-extending claw 4 can contact the second inclined surface of the outward-extending claw 4, thereby effectively limiting the extension range of the outward-extending claw 4.

[0040] In one possible implementation, see Figures 1 to 6 The bottom of the outward-extending claw 4 is provided with a guide surface 43 extending outward and upward in an arc shape. The guide surface 43 is used to press against the upper end surface of the eccentric sleeve 62 to make the outward-extending claw 4 retract and enter the eccentric sleeve 62.

[0041] In this embodiment, when the outward extending claw 4 is extended into the eccentric sleeve 62, the inner ring position of the upper end surface of the eccentric sleeve 62 can abut against the guide surface 43 of the outward extending claw 4 and form a force on the outward extending claw 4. At this time, multiple outward extending claws 4 are evenly forced to retract into the eccentric sleeve 62, and continue to push the sleeve remover downwardly from the eccentric sleeve 62 until the outward extending claw 4 is extended into the lower end groove 63.

[0042] In one possible implementation, see Figures 1 to 6 The lower end of the outrigger claw 4 is provided with a gripping portion 42 extending downward, and the gripping portion 42 is used to drive the outrigger claw 4 to retract toward the axial side of the lifting cylinder 3 so that the outrigger claw 4 can be disengaged from the top of the eccentric sleeve 62.

[0043] In this embodiment, the gripping portion 42 at the lower end of the outward-extending claw 4 is provided with a downwardly protruding arrangement. When the sleeve remover removes the eccentric sleeve 62 from the sleeper 61, the gripping portion 42 is manually pushed toward the central axis of the lifting cylinder 3 to retract the outward-extending claw 4, thereby achieving the removal of the eccentric sleeve 62 from below the sleeve remover.

[0044] In one possible implementation, see Figures 1 to 6 An operating ball 52 is provided at the upper end of the push rod 5 , and a bottom threaded hole is provided at the bottom of the operating ball 52 for threaded connection with the push rod 5 .

[0045] In this embodiment, an operating ball 52 is provided above the push rod 5 to facilitate applying downward thrust to the push rod 5. In its natural state, the push rod 5 is elastically pushed upward by the elastic member 34, maintaining a high position so that the small-diameter end 51 of the push rod 5 is located at the upper axis of the outrigger 4, preventing the outrigger 4 from disengaging from the through-slot 31.

[0046] By pushing the operating ball 52 downward, the push rod 5 can be extended into the middle of the multiple outward-extending claws 4, so that the outward-extending claws 4 can only be locked in the outward-extending state, preventing the outward-extending claws 4 from disengaging from the lower end groove 63, thereby ensuring that the lifting cylinder 3 can lift the eccentric sleeve 62 when the rotating sleeve 2 rotates.

[0047] Furthermore, in order to facilitate the installation of the elastic member 34, a pressure ring 53 protruding toward the outer periphery is provided on the outer periphery of the push rod 5. The elastic member 34 is provided below the pressure ring 53, and the upper end abuts against the lower end surface of the pressure ring 53, thereby realizing an elastic pushing effect on the push rod 5 upward.

[0048] In one possible implementation, see Figures 1 to 6 The upper end of the lifting cylinder 3 is connected to a threaded sleeve 33, and the push rod 5 is threadedly connected to the threaded sleeve 33. The push rod 5 can press down the elastic member 34 and cooperate with the threaded sleeve 33 to lock the axial position of the push rod 5.

[0049] In this embodiment, a threaded sleeve 33 is provided at the upper end of the lifting cylinder 3. The threaded sleeve 33 and the push rod 5 engage with each other to achieve circumferential movement of the lifting cylinder 3. Specifically, when the push rod 5 moves downward to contact the inner wall of the outrigger 4, the threaded engagement between the push rod 5 and the threaded sleeve 33 locks the push rod 5 in its axial position to maintain stability. This allows the lifting cylinder 3 to maintain the outrigger 4 in its extended position during the lifting process, preventing the outrigger 4 from disengaging from the lower end groove 63.

[0050] For some examples, see Figures 1 to 6 The rotating sleeve 2 is symmetrically provided with gripping handles 21 extending outward and upward on both sides, and the diameter of the extending end of the gripping handles 21 gradually increases.

[0051] In this embodiment, the gripping handles 21 on both sides of the rotating sleeve 2 facilitate applying circumferential rotation to the rotating sleeve 2, thereby driving the lifting cylinder 3 to move up and down through the threaded engagement between the rotating sleeve 2 and the lifting cylinder 3, so that the lifting cylinder 3 drives the eccentric sleeve 62 to move upward, thereby driving the eccentric sleeve 62 upward and away from the sleeper 61. The outer end diameter of the gripping handle 21 gradually increases, which facilitates operation and improves operating comfort.

[0052] In one possible implementation, see Figures 1 to 6 The upper end of the pressure cylinder 1 is provided with an upper support seat 11 which rotates with the rotating sleeve 2. The upper support seat 11 is provided with a mounting groove 12 with an upward opening. A pressure bearing 14 is provided in the mounting groove 12. A limit ring 16 is provided in the mounting groove 12 above the pressure bearing 14. The outer periphery of the lifting cylinder 3 is provided with a limit ring 32 located below the upper support seat 11.

[0053] In this embodiment, an upper support seat 11 is provided at the upper end of the pressure cylinder 1. The upper support seat 11 is provided with a mounting groove 12 capable of accommodating a pressure bearing 14. The pressure bearing 14 in the mounting groove 12 reduces friction during the rotation of the rotating sleeve 2, thus achieving a significant labor-saving effect. A retaining ring 16 limits the circumferential position of the pressure bearing 14, ensuring the stability of its axial position.

[0054] On this basis, the limiting ring 32 on the outer periphery of the lifting cylinder 3 can abut against the bottom surface of the lower support seat during the upward movement of the lifting cylinder 3, thereby limiting the rising height of the lifting cylinder 3 and preventing components such as the rotating sleeve 2 and the lifting cylinder 3 from falling off from above the pressing cylinder 1.

[0055] In one possible implementation, see Figures 1 to 6 The lower end of the pressure cylinder 1 is provided with an extended ring seat 15 extending outward to press against the top surface of the sleeper 61. A plurality of weight-reducing holes 13 are provided on the peripheral wall of the pressure cylinder 1. The weight-reducing holes 13 are oblong holes, and the major axis of the oblong holes extends along the axial direction of the pressure cylinder 1.

[0056] In this embodiment, the provision of the annular seat increases the contact area between the lower end of the pressure tube 1 and the top surface of the sleeper 61. The weight-reducing holes 13 in the peripheral wall of the pressure tube 1 reduce material consumption, thereby reducing the structural weight of the pressure tube 1 while ensuring the structural strength of the pressure tube 1. The long axis of the oblong hole extends in the vertical direction, facilitating positional observation of internal components such as the lifting tube 3, thus providing excellent practicality.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A sleeve remover, characterized in that: include: A pressing cylinder, the lower end surface of which is used to press against the top surface of the sleeper; A rotating sleeve is coaxially arranged with the pressing cylinder and is rotatably connected to the pressing cylinder; A lifting cylinder is threadedly connected to the rotating sleeve and is used for axial movement of the pressing cylinder under the rotation of the rotating sleeve; A plurality of outward extending claws are respectively connected to the lower portion of the lifting cylinder, and the lower ends of the outward extending claws can be extended outward to be clamped in the lower end groove of the eccentric sleeve; A push rod is connected to the lifting cylinder in an axial sliding manner along the lifting cylinder. An elastic member is sleeved on the outer periphery of the push rod. The upper end of the elastic member is connected to the upper end of the push rod, and the lower end is pressed against the upper end of the outward extending claw. The elastic member can elastically push the push rod upward so that the push rod avoids the outward extending claw when the outward extending claw is retracted. The elastic member can also elastically push the outward extending claw downward so that the lower end of the outward extending claw extends outward and enters the lower end groove of the eccentric sleeve.

2. The sleeve remover according to claim 1, characterized in that: The peripheral wall of the lifting cylinder is provided with a plurality of through grooves corresponding to the outward-extending claws. The upper end of the outward-extending claw is provided with an extension portion hooked in the through groove. The thickness of the extension portion is smaller than the height of the through groove. The lower end of the push rod has a small-diameter end that is retracted inward. The small-diameter end can move to the inner side of the upper end of the outward-extending claw to limit the outward-extending claw when the push rod is driven to move upward.

3. The sleeve remover according to claim 2, characterized in that: The upper end of the outward-extending claw is provided with a pressing inclined surface arranged close to the peripheral wall of the push rod, and the elastic member can elastically press against the pressing inclined surface to keep the outward-extending claw in an outward-extending state.

4. The sleeve remover according to claim 1, wherein: A guiding surface extending outward and upward in an arc shape is provided at the bottom of the outward-extending claw, and the guiding surface is used to press against the upper end surface of the eccentric sleeve to make the outward-extending claw retract and enter the eccentric sleeve.

5. The sleeve remover according to claim 1, wherein: A gripping portion extending downward is provided at the lower end of the outward extending claw, and the gripping portion is used to drive the outward extending claw to retract toward the axial center side of the lifting cylinder so that the outward extending claw can be disengaged from above the eccentric sleeve.

6. The sleeve remover according to claim 1, wherein: An operating ball is provided at the upper end of the push rod, and a bottom threaded hole is provided at the bottom of the operating ball for threaded connection with the push rod.

7. The sleeve remover according to claim 1, wherein: The upper end of the lifting cylinder is connected with a threaded sleeve, and the push rod is threadedly connected in the threaded sleeve. The push rod can press down the elastic member and cooperate with the threaded sleeve to lock the axial position of the push rod.

8. The sleeve remover according to claim 1, wherein: The two sides of the rotating sleeve are symmetrically provided with gripping handles extending outward and upward, and the diameters of the extending ends of the gripping handles gradually increase.

9. The sleeve remover according to claim 1, wherein: The upper end of the pressure cylinder is provided with an upper support seat that rotates with the rotating sleeve. The upper support seat is provided with a mounting groove that opens upward. A pressure bearing is provided in the mounting groove. A limit ring is provided above the pressure bearing in the mounting groove. The outer periphery of the lifting cylinder is provided with a limit ring located below the upper support seat.

10. The sleeve remover according to claim 1, wherein: The lower end of the pressure cylinder is provided with an extended ring seat extending outward to press against the top surface of the sleeper. The peripheral wall of the pressure cylinder is provided with a plurality of weight-reducing holes. The weight-reducing holes are oblong holes, and the major axis of the oblong holes extends along the axial direction of the pressure cylinder.

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