Wire pressing wheel bearing dismounting device

Abstract

The utility model relates to the technical field of cigarette production equipment, and particularly discloses a shred pressing wheel bearing dismounting device. Comprising a driving head, a bearing outer ring dismounting head and a bearing inner ring dismounting head, the driving head is detachably connected with the bearing outer ring dismounting head or the bearing inner ring dismounting head; the driving head comprises a telescopic rod; the lower part of the bearing outer ring dismounting head is provided with an outer ring ejector rod corresponding to a hollow hole of the wire pressing wheel; after the driving head is connected and combined with the bearing outer ring dismounting head, the telescopic rod corresponds to a middle column of the wire pressing wheel; a plurality of bearing inner ring clamping arms are arranged at the lower part of the bearing inner ring dismounting head; the bearing inner ring clamping arm can be movably adjusted in the radial direction of the bearing inner ring dismounting head. An inner boss corresponding to a bearing inner ring of the wire pressing wheel is arranged at the lower end of the bearing inner ring clamping arm in the radial direction. The device has the advantages of being convenient and fast to operate, efficient, free of damage to the wire pressing wheel, good in using effect and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette production equipment, in particular to a thread pressing wheel bearing disassembly device. Background Art

[0002] In the cigarette production process, the main types of cigarette making and cigarette making machines are ZJ17, ZJ118 and ZJ116. In the ZJ118 model, the pressing wheel (such as Figure 1 The VE air chamber (shown in the figure) is an important component of the VE air chamber in ZJ118. It completes the initial compression of the tobacco bundle leaving the air chamber device and entering the smoke gun, and the tobacco bundle on the suction ribbon is shoveled off by the wire scraper and dropped into the smoke gun. During the production of the rolling and connecting unit, it was found that due to the high speed of the ZJ118 wire pressing wheel and the harsh working environment, the bearings embedded on both sides of the wire pressing wheel were damaged frequently. Before the device was used, the operator originally fixed the bearing on the fixture and used two screwdrivers to manually clamp the bearing out, but this method easily caused damage to the wire pressing wheel.

[0003] For the ZJ118 cigarette cigar maker, the bearings are still removed in this way under the condition of high-speed production, which not only easily damages the pressing wheel, but also is undoubtedly a test for the operator. Therefore, how to remove the bearings without affecting normal production and damaging the pressing wheel has attracted widespread attention. Summary of the invention

[0004] In view of the above shortcomings, the utility model provides a thread pressing wheel bearing disassembly device which is easy to operate and has good effect.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A thread pressing wheel bearing disassembly device, comprising a driving head, a bearing outer ring disassembly head, and a bearing inner ring disassembly head; the driving head is detachably connected to the bearing outer ring disassembly head or the bearing inner ring disassembly head; the driving head comprises a telescopic rod; the lower part of the bearing outer ring disassembly head is provided with an outer ring push rod corresponding to the hollow hole of the thread pressing wheel; after the driving head is connected and combined with the bearing outer ring disassembly head, the telescopic rod corresponds to the center column of the thread pressing wheel; the lower part of the bearing inner ring disassembly head is provided with a plurality of bearing inner ring clamping arms; the bearing inner ring clamping arms can be movably adjusted along the radial direction of the bearing inner ring disassembly head; the lower end of the bearing inner ring clamping arm is radially provided with an inner boss corresponding to the bearing inner ring of the thread pressing wheel.

[0007] Optionally, it also includes an intermediate connecting head, the upper part of which is detachably connected to the driving head by means of a first connecting device; the lower part of the intermediate connecting head is detachably connected to the bearing outer ring disassembly head or the bearing inner ring disassembly head by means of a second connecting device; a push rod socket is provided in the central axis of the intermediate connecting head; and an extended push rod is movably provided in the push rod socket.

[0008] Optionally, a limiting platform is provided on the top of the extended top rod.

[0009] Optionally, a slot is provided at the upper portion of the intermediate connecting head, and the lower portion of the driving head is inserted into the slot and locked by a first radial fixing screw to achieve a detachable connection.

[0010] Optionally, the lower part of the intermediate connecting head is sleeved with the upper part of the bearing outer ring disassembly head or the bearing inner ring disassembly head, and is locked by a second radial fixing screw to achieve a detachable connection.

[0011] Optionally, the main body of the bearing outer ring removal head is in a groove structure, and a plurality of outer ring push rods are arranged at the bottom of the groove.

[0012] Optionally, a spring is further provided at the bottom of the groove of the bearing outer ring removal head; the spring is provided between the bottom of the groove and the bottom of the thread pressing wheel.

[0013] Optionally, a T-shaped slot is provided at the lower portion of the bearing inner ring removal head in the radial direction, and the upper portion of the bearing inner ring clamping arm is a T-shaped clamping head, which is arranged in the T-shaped slot and can move radially, and its axial tension is supported by the bottom of the T-shaped slot; the lower portion of the bearing inner ring clamping arm passes through the outside of the bearing inner ring removal head.

[0014] Optionally, a small return spring is provided at the inner end of the T-shaped slot, and the outer end of the small return spring presses the T-shaped clamp outward; an adjusting screw is provided at the outer end of the T-shaped slot, and the position of the T-shaped clamp is limited by the adjusting screw.

[0015] Optionally, a telescopic cylinder is provided in the drive head.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model can realize the convenient and efficient removal of the bearing of the wire drawing wheel in the winding and splicing unit J118 model without causing damage to the wire drawing wheel. The outer ring of the bearing to be replaced is firstly pushed out and removed axially by using the bearing outer ring removal head, and then the inner ring of the bearing is pulled out axially from the center column of the wire drawing wheel by using the bearing inner ring removal head. The wire drawing wheel body will not be touched during the whole removal process, thereby ensuring that the wire drawing wheel is not damaged and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0019] Figure 1 This is an axial section view of the combination of the pressing wheel and bearing in the J118 crimping machine;

[0020] Figure 2 It is a structural schematic diagram of using the utility model to remove the outer ring of the bearing of the thread pressing wheel;

[0021] Figure 3 The utility model is a structural schematic diagram of removing the inner ring of the bearing of the thread pressing wheel by using the utility model. 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 only 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 present utility model, it should be noted that the directions or positional relationships indicated by the terms "inside", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figures 1 to 3 As shown, a thread pressing wheel bearing disassembly device is used to disassemble the bearing of the thread pressing wheel in the winding and splicing unit J118 model. The structure of the thread pressing wheel and the bearing is as shown in FIG. Figure 1 As shown, it includes a thread pressing wheel body 1, which is a concave structure, and its bottom is alternately provided with hollow holes 5 distributed in a circle, and its center is provided with a middle column 4, and its bearing is sleeved on the middle column 4, so the bearing is distributed in the concave cavity of the thread pressing wheel body 1, and the outer ring and ball area of ​​the bearing are directly above the hollow hole 5, and the non-hollow hole 5 area of ​​the thread pressing wheel body 1 is directly below the inner ring of the bearing; this also brings inconvenience to the complete removal of the bearing that needs to be replaced. In order to improve the efficiency of removal and prevent damage to the thread pressing wheel body 1, a thread pressing wheel bearing disassembly device of the utility model includes a drive head 7, a bearing outer ring disassembly head 15, and a bearing inner ring disassembly head 20; in this embodiment, a telescopic cylinder is arranged in the drive head, which can be a cylinder, a hydraulic cylinder or an electric telescopic cylinder, and a bidirectional micro oil cylinder 6 can be preferably used, and its function is to provide power for pulling out / ejecting the inner ring and outer ring of the thread pressing wheel bearing.

[0026] The drive head 7 is detachably connected to the bearing outer ring disassembly head 15 or the bearing inner ring disassembly head 20; in order to improve the disassembly operation of the thread pressing wheel bearings of different sizes, in this embodiment, Figures 2-3 As shown, it also includes an intermediate connector 9, the upper portion of which is detachably connected to the drive head 7 by providing a first connecting device; in this embodiment, the following structure is adopted:

[0027] like Figure 2 As shown, a slot 18 is provided at the upper portion of the intermediate connecting head 9, and the lower portion of the driving head 7 is inserted into the slot 18 and is locked by a plurality of first radial fixing screws 8 to achieve a detachable connection.

[0028] The lower part of the intermediate connector 9 is detachably connected to the bearing outer ring disassembly head 15 or the bearing inner ring disassembly head 20 by providing a second connecting device; in this embodiment, the lower part of the intermediate connector 9 is provided with a clearance groove 11, which specifically adopts the following structure:

[0029] like Figure 2As shown, the lower part of the intermediate connector 9 is sleeved with the upper part of the bearing outer ring disassembly head 15, and is locked by the second radial fixing screw 10 to achieve a detachable connection. Figure 3 As shown, the lower part of the intermediate connecting head 9 is sleeved with the upper part of the bearing inner ring removal head 20 and is locked by a third radial fixing screw 28 to achieve a detachable connection.

[0030] The central axis of the intermediate connector 9 is provided with a push rod insertion hole 17; an extended push rod 16 is movably provided in the push rod insertion hole 17. The push rod insertion hole 17 plays the following roles: guiding the movement of the extended push rod 16; a limit platform 19 is provided on the top of the extended push rod 16, and the purpose of providing the limit platform 19 is to prevent the extended push rod 16 from moving too far downward and causing damage to the thread pressing wheel body 1, such as Figure 2 As shown, if the extended push rod 16 is pushed downward excessively, it is easy to cause the thread pressing wheel body 1 to be excessively pressed to the bottom of the bearing outer ring removal head 15, resulting in equipment damage.

[0031] The purpose of adopting the above design is that the intermediate connecting head 9 is detachably connected to the driving head 7, so that the extended push rod 16 can be easily replaced to meet different operation requirements, improve operation flexibility, realize partial device sharing, and reduce operation costs.

[0032] The lower part of the bearing outer ring disassembly head 15 is provided with an outer ring push rod 14 corresponding to the hollow hole 5 of the thread pressing wheel; Figure 2 As shown, the main body of the bearing outer ring removal head 15 is a groove structure, and a plurality of outer ring push rods 14 are arranged at the bottom of the groove; during preparation, the diameter of the outer ring push rods 14 is smaller than the aperture of the hollow hole 5, and the height thereof is not less than the thickness of the thread pressing wheel. A spring 13 is also arranged at the bottom of the groove of the bearing outer ring removal head 15; the spring 13 is arranged between the bottom of the groove and the bottom of the thread pressing wheel. In this embodiment, the spring 13 is fixed and detachably fixed to the bottom of the groove by the block 12. The purpose of the spring 13 is to prevent the outer ring 2 of the bearing from impacting the bottom of the groove and causing damage when the thread pressing wheel hits the bottom of the groove. After the drive head 7 is connected and combined with the bearing outer ring disassembly head 15, the telescopic rod of the bidirectional micro-cylinder 6 corresponds to the middle column 4 of the thread pressing wheel, and the telescopic rod is extended downward and just hits the middle column 4. At the same time, the tops of several outer ring push rods 14 hit the outer ring 2 area of ​​the bearing, and the telescopic rod continues to extend downward, thereby achieving forced separation of the outer ring 2 without causing contact damage to the thread pressing wheel body 1.

[0033] like Figure 3As shown, a plurality of bearing inner ring clamping arms 24 are provided at the lower part of the bearing inner ring removal head 20; the bearing inner ring clamping arms 24 can be movably adjusted along the radial direction of the bearing inner ring removal head 20; the lower end of the bearing inner ring clamping arm 24 is provided with an inner boss 25 corresponding to the bearing inner ring 3 of the thread pressing wheel along the radial direction. In this embodiment, the following scheme is specifically adopted:

[0034] The lower part of the bearing inner ring disassembly head 20 is provided with a T-shaped slot 23 in the radial direction, and the upper part of the bearing inner ring clamping arm 24 is a T-shaped clamping head 27, which is arranged in the T-shaped slot 23 and can move in the radial direction, and its axial tension is supported by the bottom of the T-shaped slot 23; the lower part of the bearing inner ring clamping arm 24 passes through the outside of the bearing inner ring disassembly head 20. A small reset spring (not shown) is arranged at the inner side end of the T-shaped slot 23, and the outer end of the small reset spring presses the T-shaped clamping head 27 outward; a screw hole 22 is arranged at the outer side end of the T-shaped slot 23, and an adjusting screw 21 is arranged in the screw hole 22, and the position of the T-shaped clamping head 27 is limited by the adjusting screw 21. During preparation, the bearing inner ring disassembly head 20 is provided with a detachable movable block corresponding to the T-shaped slot 23, so as to facilitate the installation of the bearing inner ring clamping arm 24 and the maintenance and replacement of the small reset spring. During use, after the outer ring 2 of the bearing and the non-inner ring parts such as the ball are removed, the bearing inner ring disassembly head 20 is replaced, and the extended push rod 16 is replaced with a second extended push rod 16-1 with a longer length, and the bearing inner ring clamping arm 24 is inserted into the outer periphery of the inner ring 3, and then the adjusting screw 21 is rotated to cause the bearing inner ring clamping arm 24 to move axially and inwardly (the lower vertical slot 26 of the T-shaped slot 23 is wider than the middle width of the bearing inner ring clamping arm 24), and then push against the concave surface of the inner ring 3 of the bearing, and then control the second extended push rod 16-1 to extend downward to push the middle column 4 downward, thereby realizing the displacement of the inner ring 3 relative to the thread pressing wheel body 1, until the inner ring 3 is pulled out, completing the bearing disassembly work and effectively preventing damage to the thread pressing wheel body 1, the operation is convenient and reliable, and the use effect is good.

Claims

1. A thread pressing wheel bearing disassembly device, characterized in that: It comprises a driving head, a bearing outer ring disassembly head and a bearing inner ring disassembly head; the driving head is detachably connected with the bearing outer ring disassembly head or the bearing inner ring disassembly head; the driving head comprises a telescopic rod; an outer ring push rod is arranged at the lower part of the bearing outer ring disassembly head corresponding to the hollow hole of the thread pressing wheel; after the driving head is connected and combined with the bearing outer ring disassembly head, the telescopic rod corresponds to the center column of the thread pressing wheel; a plurality of bearing inner ring clamping arms are arranged at the lower part of the bearing inner ring disassembly head; the bearing inner ring clamping arms can be movably adjusted along the radial direction of the bearing inner ring disassembly head; an inner boss corresponding to the bearing inner ring of the thread pressing wheel is arranged at the lower end of the bearing inner ring clamping arm in the radial direction.

2. A thread pressing wheel bearing disassembly device according to claim 1, characterized in that: It also includes an intermediate connecting head, the upper part of which is detachably connected to the driving head by means of a first connecting device; the lower part of which is detachably connected to the bearing outer ring disassembly head or the bearing inner ring disassembly head by means of a second connecting device; a push rod socket is provided in the central axis of the intermediate connecting head; an extended push rod is movably provided in the push rod socket.

3. A thread pressing wheel bearing disassembly device according to claim 2, characterized in that: A limiting platform is arranged on the top of the extended top rod.

4. A thread pressing wheel bearing disassembly device according to claim 2, characterized in that: The upper portion of the intermediate connecting head is provided with a slot, the lower portion of the driving head is inserted into the slot and is locked by a first radial fixing screw to achieve a detachable connection.

5. The thread pressing wheel bearing disassembly device according to claim 2, characterized in that: The lower part of the intermediate connecting head is sleeved with the upper part of the bearing outer ring disassembly head or the bearing inner ring disassembly head, and is locked by a second radial fixing screw to achieve a detachable connection.

6. A thread pressing wheel bearing disassembly device according to claim 1, characterized in that: The main body of the bearing outer ring removal head is in a groove structure, and a plurality of outer ring push rods are arranged at the bottom of the groove.

7. A thread pressing wheel bearing disassembly device according to claim 6, characterized in that: A spring is also provided at the bottom of the groove of the bearing outer ring removal head; the spring is provided between the bottom of the groove and the bottom of the thread pressing wheel.

8. The thread pressing wheel bearing disassembly device according to claim 1, characterized in that: The lower part of the bearing inner ring removal head is provided with a T-shaped slot in the radial direction, and the upper part of the bearing inner ring clamping arm is a T-shaped clamping head. The T-shaped clamping head is arranged in the T-shaped slot and can move in the radial direction, and its axial tension is supported by the bottom of the T-shaped slot; the lower part of the bearing inner ring clamping arm passes through the outside of the bearing inner ring removal head.

9. A thread pressing wheel bearing disassembly device according to claim 8, characterized in that: The inner end of the T-shaped slot is provided with a small return spring, and the outer end of the small return spring presses the T-shaped clamp outward; the outer end of the T-shaped slot is provided with an adjusting screw, and the position of the T-shaped clamp is limited by the adjusting screw.

10. The thread pressing wheel bearing disassembly device according to claim 1, characterized in that: A telescopic cylinder is arranged in the driving head.

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