Cone pulley in wire drawing machine and dismounting tool suitable for cone pulley

Abstract

The utility model discloses a cone pulley in a wire drawing machine, which comprises a connecting sleeve and a ceramic guide sleeve, a limit ring is arranged on the connecting sleeve, the ceramic guide sleeve is clamped between the connecting sleeve and the limit ring, a plurality of ceramic bolts are uniformly distributed on the circumference of the ceramic guide sleeve, the ceramic bolts abut against the connecting sleeve, a step hole is arranged in the connecting sleeve, and the ceramic bolts are inserted into the step hole. The rotating shaft is sleeved with the connecting sleeve through the stepped hole and is in key connection with the connecting sleeve, the end of the rotating shaft is connected with a T-shaped limiting block, the T-shaped limiting block abuts against a step of the stepped hole, and an inner ring groove is formed in the inner wall of the stepped hole. And the ceramic guide sleeve is assembled on the connecting sleeve, so that the ceramic guide sleeve is convenient to replace. The disassembling tool suitable for the cone pulley comprises a second inner check ring, a straight rod, a rammer, a pulling plate and a collided block, the pulling plate and the collided block are connected to the two ends of the straight rod respectively, and the rammer is arranged on the straight rod in a sliding mode. The pulling plate extends into the stepped hole and then is clamped in the inner ring groove through the second inner check ring, and the cone pulley can be detached from the rotating shaft by impacting the impacted block through the rammer.

Description

Technical Field

[0001] The utility model relates to the field of wire drawing machines, in particular to a cone pulley in a wire drawing machine and a disassembly tool suitable for the cone pulley. Background Art

[0002] When a wire drawing machine is performing wire drawing operations, the cone pulley on the wire drawing machine plays a role in separating and guiding the wire. However, the ceramic layer on the cone pulley is prone to wear after long-term contact with the wire. When the ceramic layer is worn, it is easy to scratch the wire. Therefore, it is necessary to replace the worn ceramic layer. Since the ceramic layer is sprayed on the cone pulley, when replacing the ceramic layer, the entire cone pulley needs to be removed from the rotating shaft, and then the worn ceramic layer is removed and a new ceramic layer is sprayed again. The cone pulley with this structure is time-consuming and laborious when replacing the ceramic layer. At present, the cone pulleys in wire drawing machines on the market are not only inconvenient to replace the ceramic layer, but also inconvenient to disassemble between the cone pulley and the rotating shaft. This is because the cone pulley and the rotating shaft on the market are generally installed by tight fitting. During installation, the cone pulley is sleeved on the rotating shaft by a press-fitting method or a temperature difference method, which can ensure the concentricity between the cone pulley and the rotating shaft. However, due to the high connection strength between the cone pulley and the rotating shaft, it is very inconvenient to disassemble the cone pulley. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a cone pulley in a wire drawing machine and a disassembly tool suitable for the cone pulley. A ceramic guide sleeve that can be assembled is used on the cone pulley to facilitate the replacement of the ceramic guide sleeve, and the disassembly tool suitable for the cone pulley can quickly remove the cone pulley from the rotating shaft.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows: The cone pulley in a wire drawing machine includes a connection sleeve and a ceramic guide sleeve tightly fitted on the rotating shaft. An outer convex ring is provided at the front end of the connection sleeve, and a front outer ring groove is provided on the rear side wall of the outer convex ring. The front end of the ceramic guide sleeve is clamped in the front outer ring groove. A limiting ring is provided at the rear end of the connection sleeve, and a rear outer ring groove is provided on the front side wall of the limiting ring. The rear end of the ceramic guide sleeve is clamped in the rear outer ring groove. A plurality of ceramic bolts are evenly distributed in a circumferential direction on the ceramic guide sleeve, and the ceramic bolts abut against the connection sleeve. A stepped hole is provided in the connection sleeve, a first key groove is provided on the inner side wall of the small-diameter section of the stepped hole, a second key groove is provided on the outer side wall of the rotating shaft, a connection key is clamped in the second key groove, the connection sleeve is sleeved on the rotating shaft through the stepped hole, and the first key groove on the connection sleeve is clamped with the connection key. A T-shaped limiting block is connected to the end of the rotating shaft by a bolt, and the T-shaped limiting block abuts against the step of the stepped hole. An inner ring groove is provided on the inner wall of the large-diameter section of the stepped hole, and the rotating shaft is rotatably arranged in the wire drawing machine base.

[0005] Further, in the capstan of the foregoing wire drawing machine, a shoulder is provided on the rotating shaft, a first inner retaining ring is provided in the base of the wire drawing machine, a bearing is sleeved on the rotating shaft, the inner ring of the bearing abuts against the shoulder, the outer ring of the bearing abuts against the first inner retaining ring, a copper sleeve is sleeved on the rotating shaft, a first sealing ring is provided between the copper sleeve and the rotating shaft, both ends of the copper sleeve respectively abut against the connecting sleeve and the inner ring of the bearing, a dust-proof sleeve is sleeved outside the copper sleeve, the dust-proof sleeve is connected to the base of the wire drawing machine, and a second sealing ring and a skeleton oil seal are provided between the dust-proof sleeve and the copper sleeve.

[0006] Further, in the capstan of the foregoing wire drawing machine, the front outer ring groove on the outer convex ring and the rear outer ring groove on the limiting ring are higher than the outer side wall of the connecting sleeve and are flush. A ring platform is protrudingly provided on the outer side wall of the connecting sleeve. When the ceramic guide sleeve is clamped between the front outer ring groove and the rear outer ring groove, the ceramic guide sleeve abuts against the ring platform, and the ceramic bolt on the ceramic guide sleeve abuts against the ring platform.

[0007] Further, in the capstan of the foregoing wire drawing machine, a plurality of retaining rings are equidistantly arranged at intervals on the ceramic guide sleeve. One of the retaining rings is vertically aligned with the ring platform. A plurality of screw holes are circumferentially arranged on the retaining ring vertically aligned with the ring platform. After the ceramic bolts are threadedly connected in the screw holes, they abut against the ring platform.

[0008] Further, in the capstan of the foregoing wire drawing machine, a stepped groove is provided at the rear end of the connecting sleeve. A plurality of threaded holes are circumferentially and uniformly distributed on the side wall of the stepped groove. The limiting ring is clamped on the stepped groove. A plurality of counterbore holes are circumferentially and uniformly distributed on the limiting ring. The counterbore holes are aligned with the threaded holes one by one. A countersunk head bolt is threadedly connected between the counterbore hole and the threaded hole.

[0009] The disassembly tooling applicable to the capstan includes: a second inner retaining ring, a straight rod, a hammer, a pull plate and a struck block. The pull plate and the struck block are respectively connected to both ends of the straight rod, and the hammer is slidably arranged on the straight rod.

[0010] Further, in the disassembly tooling applicable to the capstan, both the struck block and the pull plate are threadedly connected to the straight rod.

[0011] Further, in the disassembly tooling applicable to the capstan, the pull plate is circular in shape, and the pull plate is slidably matched with the stepped hole.

[0012] Further, in the disassembly tooling applicable to the capstan, the surface of the hammer is a rough surface.

[0013] The advantages of the present utility model are as follows: replacing the ceramic layer to be sprayed with an assemblable ceramic guide sleeve in the capstan can facilitate the replacement of the damaged ceramic guide sleeve, and the capstan disassembly tooling can quickly disassemble the capstan from the rotating shaft. Description of the Drawings

[0014] Figure 1 It is a schematic structural view of a cone pulley in the wire drawing machine described in the present utility model.

[0015] Figure 2 It is a schematic structural view of a disassembly tooling applicable to the cone pulley.

[0016] Figure 3 It is a schematic structural view when the disassembly tooling applicable to the cone pulley is in cooperation with the cone pulley. Specific embodiments

[0017] The technical solution described in the present utility model will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0018] As Figure 1 shown, the cone pulley in the wire drawing machine described in the present utility model includes: a connecting sleeve 3 and a ceramic guide sleeve 4 tightly fitted on a rotating shaft 2. The rotating shaft 2 is rotatably arranged in a wire drawing machine base 1. A shoulder 21 is provided on the rotating shaft 2. A first inner retaining ring 11 is provided in the wire drawing machine base 1. A bearing 22 is sleeved on the rotating shaft 2. The inner ring of the bearing 22 abuts against the shoulder 21, and the outer ring of the bearing 22 abuts against the first inner retaining ring 11. A copper sleeve 23 is sleeved on the rotating shaft 2. A first sealing ring 24 is provided between the copper sleeve 23 and the rotating shaft 2. The rear end of the copper sleeve 23 abuts against the inner ring of the bearing 22. A dust-proof sleeve 12 is sleeved outside the copper sleeve 23. The dust-proof sleeve 12 is connected to the wire drawing machine base 1. A second sealing ring 13 and a skeleton oil seal 14 are provided between the dust-proof sleeve 12 and the copper sleeve 23. Since the cone pulley needs to cool the wire when drawing the wire, the cone pulley works in water. By providing the first sealing ring 24, the second sealing ring 13 and the skeleton oil seal 14, it can be ensured that water will not penetrate into the wire drawing machine base 1.

[0019] An outer convex ring 31 is arranged at the front end of the connecting sleeve 3, and a front outer ring groove 311 is arranged on the rear side wall of the outer convex ring 31. The front outer ring groove 311 is higher than the outer side wall of the connecting sleeve 3. The front end of the ceramic guide sleeve 4 is clamped in the front outer ring groove 311. A step groove is arranged at the rear end of the connecting sleeve 3. A plurality of threaded holes are evenly distributed on the side wall of the step groove. A limiting ring 5 is mounted on the step groove. A plurality of countersunk holes are evenly distributed on the limit ring 5. The countersunk holes are aligned one by one with the threaded holes. A countersunk bolt 51 is threadedly connected between the hole and the threaded hole, and a rear outer ring groove 52 is arranged on the front side wall of the limiting ring 5. The rear outer ring groove 52 is higher than the outer side wall of the connecting sleeve 3 and is flush with the front outer ring groove 311. The rear end of the ceramic guide sleeve 4 is clamped in the rear outer ring groove 52, and a gap is left between the ceramic guide sleeve 4 and the connecting sleeve 3. In this way, when the ceramic guide sleeve 4 is fixed on the connecting sleeve 3, no friction will occur between the ceramic guide sleeve 4 and the connecting sleeve 3, which is convenient for installation. When the outer convex ring 31 is between the limit ring 5, the connection stability of the ceramic guide sleeve 4 can be improved by screwing the countersunk bolt 51. A ring platform 32 is protrudingly provided on the outer wall of the connecting sleeve 3, and the ceramic guide sleeve 4 is against the ring platform 32. The ring platform 32 supports the ceramic guide sleeve 4, and the contact surface between the ring platform 32 and the ceramic guide sleeve 4 is small, and the friction surface between the ceramic guide sleeve 4 and the ring platform 32 is small. The friction between the ceramic guide sleeve 4 and the ring platform 32 is small, and the ceramic guide sleeve 4 will not be damaged. In order to prevent the installation of the ceramic guide sleeve 4 from being affected, a plurality of retaining rings 41 are arranged at equal intervals on the ceramic guide sleeve 4, one of which is aligned with the ring stage 32 in the upper and lower parts, and a plurality of screw holes are arranged on the circumference of the retaining ring 41 aligned with the ring stage 32 in the upper and lower parts, and ceramic bolts 42 are threadedly connected in the screw holes. The ceramic bolts 42 abut against the ring stage 32 after passing through the screw holes. The ceramic guide sleeve 4 can rotate synchronously with the connecting sleeve 3 through the clamping effect of the outer convex ring 31 and the limit ring 5 and the tightening effect of the ceramic bolts 42.

[0020] A step hole 33 is provided in the connecting sleeve 3, a first keyway 331 is provided on the inner wall of the small diameter section of the step hole 33, a second keyway is provided on the outer wall of the rotating shaft 2, a connecting key 25 is clamped in the second keyway, the connecting sleeve 3 is sleeved on the rotating shaft 2 through the step hole 33, the rear end of the connecting sleeve 3 abuts on the copper sleeve 23, the limiting ring 5 extends into the dust cover 12, the first keyway 331 on the connecting sleeve 3 is clamped with the connecting key 25, a T-shaped limiting block 26 is connected to the end of the rotating shaft 2 by bolts, the T-shaped limiting block 26 abuts on the step of the step hole 33, the T-shaped limiting block 26 cooperates with the copper sleeve 23 to limit the connecting sleeve 3 to prevent the connecting sleeve 3 from shifting its front and rear position on the rotating shaft 2, and the connecting sleeve 3 and the rotating shaft 2 can realize synchronous rotation after being connected by the connecting key 25, and an inner ring groove 332 is provided on the inner wall of the large diameter section of the step hole 33.

[0021] The ceramic guide sleeve 4 will be worn due to friction with the wire when guiding the wire for a long time. When the ceramic guide sleeve 4 is worn, it needs to be replaced, which requires removing the entire pulley from the rotating shaft 2. When disassembling the pulley, a disassembly tooling 6 suitable for the pulley as shown in Figure 2 is required. The disassembly tooling 6 suitable for the pulley includes: a second inner retaining ring 61, a straight rod 62, a hammer 63, a pull plate 64 and a struck block 65. The pull plate 64 and the struck block 65 are respectively connected to both ends of the straight rod 62 by threaded connections. The pull plate 64 is circular in shape and is slidably fitted with the stepped hole 33. The hammer 63 is slidably arranged on the straight rod 62. When not in use, the pull plate 64, the struck block 65, the hammer 63 and the straight rod 62 can be disassembled for convenient storage. The surface of the hammer 63 is a rough surface, which is convenient for the staff to hold.

[0022] When using the pulley disassembly tooling 6 to disassemble the pulley, as shown in Figure 3 , first remove the T-shaped limit block 26 so that it no longer blocks the connecting sleeve 3. Then insert the pull plate 64 into the stepped hole 33 of the connecting sleeve 3 and move backward beyond the inner ring groove 332 in the stepped hole 33. Then snap the second inner retaining ring 61 into the inner ring groove 332 of the stepped hole 33. One hand of the staff holds the straight rod 62, and the other hand holds the hammer 63 and pushes the hammer 63 forward forcefully, so that the hammer 63 impacts the struck block 65. When the hammer 63 impacts the struck block 65, it will apply a forward pulling force to the straight rod 62, and the straight rod 62 will drive the pull plate 64 to move forward. Due to the blocking of the pull plate 64 by the second inner retaining ring 61, when the pull plate 64 moves forward, it will apply a forward pulling force to the connecting sleeve 3 through the second inner retaining ring 61. Therefore, every time the hammer 63 impacts the struck block 65, the pulley will move forward a certain distance on the rotating shaft 2, so that the pulley can be quickly disassembled from the rotating shaft 2. After the pulley is separated from the rotating shaft 2, then remove the limit ring 5 from the connecting sleeve 3 and screw out the ceramic bolt 42, so that the damaged ceramic guide sleeve 4 can be pulled out from the connecting sleeve 3, and then a new ceramic guide sleeve 4 can be replaced, so that the ceramic guide sleeve 4 can be quickly replaced.

[0023] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: still can modify the specific implementation manners of the present invention or make equivalent replacements, and any modification or equivalent replacement without departing from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. The tower wheel in the wire drawing machine is characterized by: include: The connecting sleeve and ceramic guide sleeve are tightly fitted on the rotating shaft, and an outer convex ring is arranged at the front end of the connecting sleeve, and a front outer ring groove is arranged on the rear side wall of the outer convex ring. The front end of the ceramic guide sleeve is clamped in the front outer ring groove, and a limiting ring is arranged at the rear end of the connecting sleeve, and a rear outer ring groove is arranged on the front side wall of the limiting ring. The rear end of the ceramic guide sleeve is clamped in the rear outer ring groove. A number of ceramic bolts are evenly distributed on the circumference of the ceramic guide sleeve, and the ceramic bolts abut on the connecting sleeve, and a step hole is arranged in the connecting sleeve, and a first keyway is arranged on the inner side wall of the small diameter section of the step hole, and a second keyway is arranged on the outer side wall of the rotating shaft, and a connecting key is clamped in the second keyway. The connecting sleeve is sleeved on the rotating shaft through the step hole, and the first keyway on the connecting sleeve is clamped with the connecting key. A T-type limit block is connected to the end of the rotating shaft by bolts, and the T-type limit block abuts on the step of the step hole, and an inner ring groove is arranged on the inner wall of the large diameter section of the step hole, and the rotating shaft is rotatably arranged in the wire drawing machine base.

2. The tower wheel in the wire drawing machine according to claim 1, characterized in that: A boss is provided on the rotating shaft, a first inner retaining ring is provided in the base of the wire drawing machine, a bearing is mounted on the rotating shaft, the inner ring of the bearing abuts on the boss, the outer ring of the bearing abuts on the first inner retaining ring, a copper sleeve is mounted on the rotating shaft, a first sealing ring is provided between the copper sleeve and the rotating shaft, the two ends of the copper sleeve abut on the connecting sleeve and the inner ring of the bearing respectively, a dustproof sleeve is provided on the outer side of the copper sleeve, the dustproof sleeve is connected to the base of the wire drawing machine, and a second sealing ring and a skeleton oil seal are provided between the dustproof sleeve and the copper sleeve.

3. The tower wheel in the wire drawing machine according to claim 1, characterized in that: The front outer ring groove on the outer convex ring and the rear outer ring groove on the limit ring are higher than and flush with the outer side wall of the connecting sleeve. A ring platform is protrudingly provided on the outer side wall of the connecting sleeve. When the ceramic guide sleeve is clamped between the front outer ring groove and the rear outer ring groove, the ceramic guide sleeve rests on the ring platform, and the ceramic bolt on the ceramic guide sleeve rests on the ring platform.

4. The tower wheel in the wire drawing machine according to claim 3, characterized in that: A plurality of retaining rings are arranged at equal intervals on the ceramic guide sleeve, one of which is aligned with the ring platform, and a plurality of screw holes are arranged on the circumference of the retaining ring aligned with the ring platform. The ceramic bolts are threadedly connected in the screw holes and abut against the ring platform.

5. The tower wheel in the wire drawing machine according to claim 1, characterized in that: A step groove is arranged at the rear end of the connecting sleeve, and a plurality of threaded holes are evenly distributed on the circumference of the side wall of the step groove. A limiting ring is clamped on the step groove, and a plurality of countersunk holes are evenly distributed on the circumference of the limiting ring. The countersunk holes are aligned with the threaded holes one by one, and countersunk bolts are threadedly connected between the countersunk holes and the threaded holes.

6. A disassembly tool for a tower pulley in a wire drawing machine according to any one of claims 1 to 5, characterized in that: The second inner retaining ring, the straight rod, the striking hammer, the pulling plate and the striking block, the pulling plate and the striking block are respectively connected to the two ends of the straight rod, and the striking hammer is slidably arranged on the straight rod.

7. The disassembly tool according to claim 6, characterized in that: The impacted block, the pulling plate and the straight rod are all connected via threads.

8. The disassembly tool according to claim 6, characterized in that: The pull plate is circular in shape and is slidably matched with the step hole.

9. The disassembly tool according to claim 6, characterized in that: The surface of the hammer is rough.

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