Sleeve dismounting device

Abstract

The utility model discloses a sleeve dismounting device which comprises a dismounting base and a dismounting assembly, a containing groove is formed in the dismounting base, and the containing groove is suitable for containing a sleeve to be dismounted; the sleeve comprises a sleeve body and a sleeve lining, and the sleeve lining is embedded in the inner wall of the sleeve body in an interference fit mode. The dismounting assembly comprises a supporting rod, a lifting support and two dismounting supporting rods, the supporting rod is installed on the dismounting base, the lifting support slides on the supporting rod, and the two dismounting supporting rods slide on the lifting support; the dismounting supporting rod is suitable for being tightly connected with the sleeve lining in an abutting mode after sliding in place, the lifting support is driven by an external traction device to move in the axial direction of the supporting rod, and then the sleeve lining is pulled out of the sleeve body. Force can be evenly applied through axial traction force, sleeve deformation or damage caused by violent disassembly is avoided, disassembly efficiency is improved, and operation safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sleeve dismounting device and belongs to the technical field of maintenance equipment. BACKGROUND

[0002] In the field of mechanical assembly, sleeves are widely used as connecting or fixing components, which are usually tightly nested with sleeve liners and sleeve bodies through interference fit. However, such structures are difficult to dismount during maintenance or replacement. Traditional methods usually use violent means such as knocking and prying, which may cause deformation of the sleeve liner or damage to the sleeve body, and the operation efficiency is low. Therefore, a special dismounting device with reasonable structure, convenient operation and protection of the integrity of the sleeve is needed. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a sleeve dismounting device which can evenly apply force through axial traction force, avoid deformation or damage of the sleeve caused by violent dismounting, improve dismounting efficiency and ensure operation safety.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows: a sleeve dismounting device, comprising:

[0005] A dismounting base is provided with a placing groove, which is suitable for placing the sleeve to be dismounted;

[0006] The sleeve comprises a sleeve body and a sleeve liner, and the sleeve liner is nested in the inner wall of the sleeve body through interference fit;

[0007] A dismounting assembly comprises a supporting rod, a lifting support and two dismounting rods, the supporting rod is installed on the dismounting base, the lifting support slides on the supporting rod, and the two dismounting rods slide on the lifting support;

[0008] The dismounting rod is suitable for sliding into close contact with the sleeve liner, and the lifting support is driven to move axially along the supporting rod by an external traction device, so as to pull out the sleeve liner from the sleeve body.

[0009] Further, in order to enhance the structural stability, the supporting rod bottom is further provided with a supporting base;

[0010] The supporting base is L-shaped, and the two supporting feet of the supporting base are suitable for abutting against the dismounting base.

[0011] Further, in order to avoid displacement during traction, the supporting feet are provided with clamping grooves matched with the dismounting base;

[0012] The supporting leg is further provided with a clamping assembly, which comprises at least one screw-nut pair and a clamping piece, the screw rod of the screw-nut pair is installed on the supporting leg, the nut of the screw-nut pair is installed on the clamping piece, and the screw rod and the nut are connected.

[0013] Further, the lifting support comprises a sliding circular table and two lifting support rods extending radially outward from the sliding circular table.

[0014] The sliding circular table and the two lifting support rods are integrally arranged, and the two dismounting rods slide on the corresponding lifting support rods.

[0015] Further, the dismounting rod is provided with a sliding head, a connecting rod and a contact head, the sliding head is provided with a sliding hole, the sliding head slides on the lifting support rod through the sliding hole, the connecting rod is suitable for connecting the sliding head and the contact head, one end of the connecting rod forms an obtuse angle with the sliding head, and the other end of the connecting rod forms an acute angle with the contact head.

[0016] The sliding head, the connecting rod and the contact head are integrally arranged.

[0017] Further, in order to increase the friction, the contact head is suitable for being in contact with the sleeve lining, and one side of the contact head facing the sleeve lining is provided with anti-skid lines.

[0018] Further, the two lifting support rods are further provided with limiting columns suitable for limiting the sliding of the sliding head.

[0019] Further, the supporting rod is provided with a limiting cap suitable for limiting the movement of the sliding head.

[0020] After the above technical scheme is adopted, the utility model has the following beneficial effects:

[0021] 1. In the utility model, the L-shaped supporting base is clamped at the edge of the dismounting base, the rotating screw-nut pair drives the clamping piece to lock the base, the sleeve body is vertically placed into the placing groove, it is ensured that the top end of the sleeve lining is at the same horizontal plane as the dismounting rod, the two dismounting rods are radially slid along the lifting support rod, and the anti-skid line surface of the contact head completely matches the inner wall of the sleeve lining.

[0022] The external traction device is started to connect the lifting support, the traction device applies axial tension, the lifting support makes axial displacement along the supporting rod, the two dismounting rods are synchronously contracted to the sleeve axis direction and apply force, axial traction resultant force is formed to uniformly lift the lifting support, so that the sleeve lining starts to produce gap with the sleeve body, and continuous traction is carried out until the sleeve lining is completely separated from the sleeve body.

[0023] Finally, the traction device is disconnected, the lifting support is reset to the initial position, the clamping assembly is loosened, and the dismounted sleeve assembly is taken out.

[0024] 2、In the utility model, the anti-skid lines cooperate with the limiting columns to ensure uniformity of force, the L-shaped supporting base and the clamping groove form double fixing, the screw nut pair realizes accurate adjustment of clamping force, and the sleeve lining is stably taken out under the continuous stress state. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a perspective view of a sleeve dismounting device of the utility model;

[0026] Figure 2 It is a front view of a sleeve dismounting device of the utility model;

[0027] Figure 3 It is a left view of a sleeve dismounting device of the utility model;

[0028] Figure 4 It is a full section of a sleeve dismounting device of the utility model Figure 1 ;

[0029] Figure 5 It is a full section of a sleeve dismounting device of the utility model Figure 2 ;

[0030] Figure 6 It is a structure diagram of a dismounting support rod of the utility model Figure 1 ;

[0031] Figure 7 It is a structure diagram of a dismounting support rod of the utility model Figure 2 . DETAILED DESCRIPTION

[0032] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to specific embodiment and in conjunction with the drawings.

[0033] As Figures 1-7 shown, a sleeve dismounting device comprises:

[0034] Dismounting base 1, the dismounting base 1 is equipped with placing groove 11, and the placing groove 11 is suitable for placing the sleeve to be dismounted;

[0035] The sleeve includes sleeve body 21 and sleeve lining 22, and the sleeve lining 22 is nested in the inner wall of the sleeve body 21 through interference fit;

[0036] Dismounting assembly, the dismounting assembly includes support rod 31, pull-up support and two dismounting support rods, the support rod 31 is installed on the dismounting base 1, the pull-up support is slid on the support rod 31, and the two dismounting support rods are slid on the pull-up support;

[0037] The dismounting support rod is adapted to abut against the sleeve liner 22 after being slid into position, and the sleeve liner 22 is pulled out of the sleeve body 21 by driving the pulling support to move along the support rod 31 in the axial direction through an external traction device.

[0038] Specifically, as shown in Figures 1-5 the bottom of the support rod 31 is further provided with a support base 311;

[0039] The support base 311 is L-shaped, and two support legs 312 of the support base 311 are adapted to abut against the dismounting base 1.

[0040] Specifically, as shown in Figures 1-5 the support leg 312 is provided with a clamping groove 313 adapted to the dismounting base 1;

[0041] The support leg 312 is further provided with a clamping assembly, which includes at least one screw-nut pair and a clamping piece, the screw rod 34 of the screw-nut pair is installed on the support leg 312, the nut of the screw-nut pair is installed on the clamping piece, and the screw rod 34 and the nut are connected.

[0042] Specifically, as shown in Figures 1-5 the pulling support includes a sliding circular table 321 and two pulling support rods 322 extending radially outward from the sliding circular table 321;

[0043] The sliding circular table 321 and the two pulling support rods 322 are integrally provided, and the two dismounting support rods slide on the corresponding pulling support rods 322.

[0044] Specifically, as shown in Figures 6-7 the dismounting support rod is provided with a sliding head 331, a connecting rod 332 and a contact head 333, the sliding head 331 is provided with a sliding hole, the sliding head 331 slides on the pulling support rod 322 through the sliding hole, the connecting rod 332 is adapted to connect the sliding head 331 and the contact head 333, one end of the connecting rod 332 forms an obtuse angle with the sliding head 331, and the other end of the connecting rod 332 forms an acute angle with the contact head 333;

[0045] The sliding head 331, the connecting rod 332 and the contact head 333 are integrally provided.

[0046] In this embodiment, the obtuse angle is 120°, and the acute angle is 60°.

[0047] Specifically, as shown in Figures 4-5 the contact head 333 is adapted to contact the sleeve liner 22, and one side of the contact head 333 facing the sleeve liner 22 is provided with anti-slip lines.

[0048] In the embodiment, the anti-skid lines cooperate with the limiting columns 322A to ensure uniformity of the force, the L-shaped support base 311 cooperates with the clamping grooves 313 to form double fixation, and the screw nut pair of the lead screw 34 realizes accurate adjustment of the clamping force, which together ensures that the sleeve liner 22 is smoothly taken out under the condition of continuous stress.

[0049] Specifically, as shown in Figures 1-4 The two pulling support rods 322 are further provided with limiting columns 322A suitable for limiting the sliding of the sliding head 331.

[0050] Specifically, as shown in Figures 1-5 The support rod is provided with a anti-escape cap 314 limiting the movement of the sliding head 331.

[0051] In the embodiment, the L-shaped support base 311 is clamped at the edge of the dismounting base 1, the rotating screw nut pair of the lead screw 34 drives the clamping member to lock the base, the sleeve body 21 is vertically placed in the placing groove 11, the top end of the sleeve liner 22 is ensured to be at the same horizontal plane with the dismounting support rod, the two dismounting support rods are radially slid along the pulling support rod 322, and the anti-skid line surface of the contact head 333 is completely attached to the inner wall of the sleeve liner 22.

[0052] The external traction device is connected to the pulling support, the traction device applies an axial pulling force, the pulling support is axially displaced along the support rod 31, the two dismounting support rods are synchronously contracted to the sleeve axis direction to form an axial traction resultant force, the pulling support is uniformly lifted at a constant speed, the sleeve liner 22 and the sleeve body 21 start to have a gap, and the traction is continuously applied until the sleeve liner 22 is completely separated from the sleeve body 21.

[0053] Finally, the traction device is disconnected, the pulling support is reset to the initial position, the clamping assembly is loosened, and the dismounted sleeve assembly is taken out.

[0054] The above-described specific embodiments further specifically describe the technical problems, technical solutions and beneficial effects solved by the utility model, and it should be understood that the above-described specific embodiments are only specific embodiments of the utility model and are not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A sleeve dismounting device, characterized in that The utility model relates to a sleeve dismounting device, which comprises the following parts: a dismounting base (1) provided with a placing groove (11) for placing a sleeve to be dismounted; the sleeve comprises a sleeve body (21) and a sleeve liner (22) which is embedded in the inner wall of the sleeve body (21) through interference fit; a dismounting assembly comprising a supporting rod (31), a pulling support and two dismounting rods, the supporting rod (31) is installed on the dismounting base (1), the pulling support slides on the supporting rod (31), and the two dismounting rods slide on the pulling support; the dismounting rod is adapted to abut against the sleeve liner (22) after sliding into place, and the pulling support is driven to move axially along the supporting rod (31) by an external traction device, thereby pulling the sleeve liner (22) out of the sleeve body (21).

2. The sleeve dismounting device according to claim 1, wherein: the bottom of the supporting rod (31) is further provided with a supporting base (311); the supporting base (311) is L-shaped, and the two supporting legs (312) of the supporting base (311) are adapted to abut against the dismounting base (1).

3. The sleeve dismounting device according to claim 2, wherein: the supporting leg (312) is provided with a clamping groove (313) adapted to the dismounting base (1); the supporting leg (312) is further provided with a clamping assembly, the clamping assembly comprises at least one screw-nut pair and a clamping piece, the screw rod (34) of the screw-nut pair is installed on the supporting leg (312), the nut of the screw-nut pair is installed on the clamping piece, and the screw rod (34) is connected with the nut.

4. The sleeve dismounting device according to claim 1, wherein: the pulling support comprises a sliding circular table (321) and two pulling rods (322) extending radially outward from the sliding circular table (321); the sliding circular table (321) and the two pulling rods (322) are integrally arranged, and the two dismounting rods slide on the corresponding pulling rods (322).

5. The sleeve dismounting device according to claim 4, wherein: the dismounting rod is provided with a sliding head (331), a connecting rod (332) and a contact head (333), the sliding head (331) is provided with a sliding hole, the sliding head (331) slides on the pulling rod (322) through the sliding hole, the connecting rod (332) is adapted to connect the sliding head (331) and the contact head (333), one end of the connecting rod (332) forms an obtuse angle with the sliding head (331), and the other end of the connecting rod (332) forms an acute angle with the contact head (333); the sliding head (331), the connecting rod (332) and the contact head (333) are integrally arranged.

6. The sleeve dismounting device according to claim 5, wherein: The contact head (333) is adapted to contact the sleeve liner (22), and one side of the contact head (333) is provided with anti-skid lines.

7. The sleeve dismounting device according to claim 5, characterized in that: Two of the lifting support rods (322) are further provided with limiting columns (322A) adapted to limit the sliding of the sliding head (331).

8. The sleeve dismounting device according to claim 5, characterized in that: The support rod (31) is provided with an anti-removal cap (314) adapted to limit the movement of the sliding head (331).

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