CN218510118U - Cold-mounted belt pulley structure - Google Patents
Cold-mounted belt pulley structure Download PDFInfo
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- CN218510118U CN218510118U CN202222574696.1U CN202222574696U CN218510118U CN 218510118 U CN218510118 U CN 218510118U CN 202222574696 U CN202222574696 U CN 202222574696U CN 218510118 U CN218510118 U CN 218510118U
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- belt pulley
- hole
- semicircle
- taper sleeve
- holes
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Abstract
The utility model relates to a cold dress belt pulley structure belongs to belt drive technical field. The technical scheme is as follows: imbed one taper sleeve (2) between belt pulley (1) and pulley shaft (7), the axial of the great one end surface axial of taper sleeve (2) diameter and belt pulley (1) that contacts with taper sleeve (2) is equipped with three semicircle orifice respectively, three semicircle orifice on taper sleeve (2), wherein two are semicircle unthreaded holes, another is semicircle threaded hole, three semicircle orifice on belt pulley (1), wherein two are semicircle threaded hole, another is semicircle unthreaded hole, two semicircle unthreaded holes on taper sleeve (2) and two semicircle threaded holes on belt pulley (1) make up into pilot hole A (3) and pilot hole B (4), semicircle threaded hole on taper sleeve (2) and one semicircle unthreaded hole on belt pulley (1) make up into disassembly hole (5). The utility model has the advantages that: the installation promptly under the normal atmospheric temperature, it is convenient to dismantle, improves maintenance efficiency.
Description
Technical Field
The utility model relates to a cold dress belt pulley device belongs to metallurgical industry belt drive equipment technical field.
Background
The belt transmission is a common transmission device in a factory and mainly comprises a belt pulley and a belt pulley shaft, wherein the belt pulley and the belt pulley shaft are connected in an interference fit mode generally, and the belt pulley must be detached when the belt pulley shaft is damaged or replaced. Because the mode of connection of belt pulley and axle is interference fit, need to use hydraulic pressure to draw the horse supplementary during dismantlement, need heat the belt pulley hole during the installation after the hot charge, waste time and energy, very inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cold charge belt pulley structure, the mountable promptly under the normal atmospheric temperature, it is convenient to dismantle, improves maintenance efficiency, solves the problem that exists among the background art.
The technical scheme of the utility model is that:
the utility model provides a cold-mounted belt pulley structure, contains belt pulley and belt pulley axle, and belt pulley axle interference fit are in the same place, imbed a taper sleeve between belt pulley and belt pulley axle, the radial opening that is equipped with of taper sleeve, the great one end surface axial of taper sleeve diameter and the axial of the belt pulley that contacts with the taper sleeve are equipped with three semicircle orifice respectively, three semicircle orifice on the taper sleeve, wherein two are semicircle unthreaded hole and are the blind hole, another is semicircle threaded hole and is the through-hole, three semicircle orifice on the belt pulley, wherein two are semicircle threaded hole and be the through-hole, another is semicircle unthreaded hole and is the blind hole, two semicircle unthreaded holes on the taper sleeve and two semicircle threaded holes on the belt pulley make up into two round holes when belt pulley and belt pulley axle assembly time, assembly hole A and assembly hole B promptly, a semicircle threaded hole on the taper sleeve and a semicircle unthreaded hole on the belt pulley make up into a round hole when belt pulley and belt pulley axle are dismantled, dismantle the hole promptly.
The assembly holes A and the assembly holes B are arranged oppositely along the radial direction of the taper sleeve.
The thread turning directions of the semicircular threaded hole in the taper sleeve and the semicircular threaded hole in the belt pulley are the same.
The inner diameter of the taper sleeve is matched with the diameter of the belt pulley shaft.
When the belt pulley and the belt pulley shaft are assembled, two screws are screwed into the assembly hole A and the assembly hole B, the taper sleeve continuously holds the belt pulley shaft along with the continuous tightening of the screws, and the belt pulley shaft reacts on the taper sleeve, so that the belt pulley, the taper sleeve and the belt pulley shaft are tightly assembled together; when the pulley is disassembled, a screw is screwed into the disassembling hole, and when the head of the screw is abutted against the bottom of the unthreaded hole on the pulley, force is transmitted to the pulley, and finally the pulley is disassembled from the pulley shaft.
The utility model has the advantages that: the structure is compact, the shaft positioning is not needed, the installation is convenient, and the installation can be carried out without heating. The taper sleeve and the belt pulley are separable, so that the change of the shaft hole only needs to change the aperture of the taper sleeve, the universality of the product is increased, and the cost of spare parts is reduced.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
in the figure: 1. the belt pulley comprises a belt pulley body, 2 parts of taper sleeves, 3 parts of assembly holes A and 4 parts of assembly holes B and 5 parts of assembly holes, 6 parts of disassembly holes, a notch, 7 parts of belt pulley shafts.
Detailed Description
The invention will be further described by way of example with reference to the accompanying drawings.
Referring to the attached drawings 1-2, a cold-assembly belt pulley structure comprises a belt pulley 1 and a belt pulley shaft 7, wherein the belt pulley 1 and the belt pulley shaft 7 are in interference fit, a taper sleeve 2 is embedded between the belt pulley 1 and the belt pulley shaft 7, a notch 6 is radially arranged on the taper sleeve 2, three semicircular holes are respectively arranged in the axial direction of the outer surface of the larger end of the diameter of the taper sleeve 2 and the axial direction of the belt pulley 1 in contact with the taper sleeve 2, three semicircular holes are arranged on the taper sleeve 2, two semicircular holes are semicircular unthreaded holes and blind holes, the other semicircular hole is a through hole, three semicircular holes on the belt pulley 1 are semicircular threaded holes and through holes, the other semicircular hole is a blind hole, two semicircular unthreaded holes on the taper sleeve 2 and two circular holes on the belt pulley 1 are combined into two circular holes when the belt pulley 1 and the belt pulley shaft 7 are assembled, namely, an assembly hole A3 and an assembly hole B4 are formed, one semicircular unthreaded hole on the taper sleeve 2 and one semicircular hole on the belt pulley 1 are combined into a circular hole 1 and a circular hole when the belt pulley shaft 7 is disassembled, and the belt pulley shaft 5 is disassembled.
In this embodiment, referring to fig. 1-2, the belt driving apparatus includes a pulley 1 and a pulley shaft 7, a central hole of the pulley 1 is a taper hole, the pulley 1 and the pulley shaft 7 are interference fit together,
the inner diameter of the taper sleeve 2 is matched with the diameter of the belt pulley shaft 7, the outer surface of the taper sleeve 2 is a conical surface, and the taper of the taper sleeve is matched with the central hole of the belt pulley 1. The thread turning directions of the semicircular thread holes in the taper sleeve 2 and the semicircular thread holes in the belt pulley 1 are the same, and the assembling holes A3 and the assembling holes B4 are oppositely arranged along the radial direction of the taper sleeve 2.
When the belt pulley 1 and the belt pulley shaft 7 are assembled, two screws are respectively screwed into the assembling hole A3 and the assembling hole B4, the screws are pushed to the small end of the taper hole on the belt pulley 1 under the action of the threads along with the continuous screwing of the screws, and the two smooth holes on the taper sleeve 2 are not completely communicated, namely blind holes, so that when the head of the screw is propped against the bottom of the smooth hole, force is transmitted to the taper sleeve 2, the taper sleeve 2 moves towards the small end of the taper hole on the belt pulley 1 relative to the belt pulley 1, at the moment, the taper sleeve continuously clasps the belt pulley shaft due to the taper, and the belt pulley shaft 7 reacts on the taper sleeve 2, so that the belt pulley 1, the taper sleeve 2 and the belt pulley shaft 7 are tightly assembled together; when the belt pulley is disassembled, the two screws are taken out, the other screw is screwed into the disassembling hole 5, when the head of the screw props against the bottom of the unthreaded hole on the belt pulley 1, force is transmitted to the belt pulley 1, and the taper sleeve 2 moves towards the large end of the taper hole of the belt pulley 1 and is finally disassembled from the belt pulley shaft.
Claims (4)
1. The utility model provides a cold dress belt pulley structure, contains belt pulley (1) and belt pulley axle (7), and belt pulley (1) and belt pulley axle (7) interference fit are in the same place its characterized in that: imbed one taper sleeve (2) between belt pulley (1) and pulley shaft (7), the radial of taper sleeve (2) is equipped with one opening (6), the axial of the great one end surface of taper sleeve (2) diameter and belt pulley (1) that contacts with taper sleeve (2) is equipped with three semicircle orifice respectively, three semicircle orifice on taper sleeve (2), wherein two are semicircle unthreaded hole and are the blind hole, another is semicircle screw hole and is the through-hole, three semicircle orifice on belt pulley (1), wherein two are semicircle screw hole and are the through-hole, another is semicircle unthreaded hole and is the blind hole, two semicircle unthreaded holes on taper sleeve (2) and two semicircle screw holes on belt pulley (1) make up into two round holes when belt pulley (1) and pulley shaft (7) assemble, assemble hole A (3) and pilot hole B (4) promptly, one semicircle screw hole on taper sleeve (2) and one semicircle unthreaded hole on belt pulley (1) make up into one when belt pulley (1) and pulley shaft (7) dismantle, dismantle hole (5) promptly.
2. A cold-shrink belt pulley structure as claimed in claim 1, wherein: the assembling holes A (3) and the assembling holes B (4) are oppositely arranged along the radial direction of the taper sleeve (2).
3. A cold-shrink belt pulley structure as claimed in claim 1, wherein: the thread turning directions of the semicircular thread hole in the taper sleeve (2) and the semicircular thread hole in the belt pulley (1) are the same.
4. A cold-shrink belt pulley structure as claimed in claim 1, wherein: the inner diameter of the taper sleeve (2) is matched with the diameter of the belt pulley shaft (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222574696.1U CN218510118U (en) | 2022-09-28 | 2022-09-28 | Cold-mounted belt pulley structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222574696.1U CN218510118U (en) | 2022-09-28 | 2022-09-28 | Cold-mounted belt pulley structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218510118U true CN218510118U (en) | 2023-02-21 |
Family
ID=85214465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222574696.1U Active CN218510118U (en) | 2022-09-28 | 2022-09-28 | Cold-mounted belt pulley structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218510118U (en) |
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2022
- 2022-09-28 CN CN202222574696.1U patent/CN218510118U/en active Active
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