CN217801478U - Puller special for belt pulley - Google Patents
Puller special for belt pulley Download PDFInfo
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- CN217801478U CN217801478U CN202221848367.5U CN202221848367U CN217801478U CN 217801478 U CN217801478 U CN 217801478U CN 202221848367 U CN202221848367 U CN 202221848367U CN 217801478 U CN217801478 U CN 217801478U
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- belt pulley
- claw teeth
- claw
- arc surface
- fulcrum beam
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Abstract
The utility model discloses a special horse that draws of belt pulley belongs to belt pulley technical field, a serial communication port, include: a support frame of a rectangular frame structure; two claw teeth fixedly arranged on the inner side of the supporting frame; the surface of the claw teeth, which is contacted with the belt pulley, is an arc surface, and the arc surface is provided with a convex part matched with a pulley groove of the belt pulley; the fulcrum beam is positioned above the two claw teeth; and a top rod; wherein: the upper surfaces of the two claw teeth are connected with the two ends of the fulcrum beam; a threaded hole is formed in the center of the fulcrum beam; the ejector rod is provided with external threads and is connected with the fulcrum beam through a threaded hole. The utility model provides a face of claw tooth and belt pulley contact is the arc surface, and at the in-process that uses like this, the arc surface of claw tooth and the stress surface between the belt pulley race increase, and then with stress dispersion, like this at the in-process of dismantling, can finely avoid the belt pulley to take place the damage.
Description
Technical Field
The utility model belongs to the technical field of the belt pulley, especially, relate to a special horse that draws of belt pulley.
Background
As is well known, the pulley belongs to a hub part, and is generally relatively large in size, and the manufacturing process is mainly casting and forging. The common large-size design is a casting method, the material is generally cast iron (the casting performance is better), and the cast steel (the casting performance of the steel is poor) is rarely used; generally, the steel is small in size and can be designed to be forged, and the material is steel. The pulley is mainly used in the case of transmitting power from a long distance, such as the output of small diesel engine power, agricultural vehicles, tractors, automobiles, mining machines, machining equipment, textile machines, packaging machines, lathes, forging beds, the transmission of power for some small horsepower motorcycles, the transmission of power for agricultural machines, air compressors, speed reducers, generators, cotton gins, and the like.
The belt pulley is in the use, need dismantle the belt pulley sometimes, at present, the extracting tool of belt pulley mainly is three-jaw puller, when dismantling, utilize three claw to hook the outer edge of belt pulley, then dismantle through well core rod application of force, discover through practice, because the belt pulley is the foundry goods mostly, the material is very fragile, and three-jaw puller's hook position area of contact is smaller, area of contact is too little, stress concentration, damage the belt pulley very easily, so, design development avoids the special puller of belt pulley that the belt pulley damaged, and great significance is achieved.
SUMMERY OF THE UTILITY MODEL
To above technical defect, the utility model provides a special horse that draws of belt pulley, through the area that increases the belt pulley atress, and then take place the damage when avoiding the belt pulley to dismantle.
In order to achieve the technical purpose, the utility model discloses a following technical scheme realizes:
a special puller for a belt pulley comprises:
a support frame of a rectangular frame structure;
two claw teeth fixedly arranged on the inner side of the supporting frame; the surface of the claw teeth, which is contacted with the belt pulley, is an arc surface, and the arc surface is provided with a convex part matched with a pulley groove of the belt pulley;
the fulcrum beam is positioned above the two claw teeth;
and a top rod; wherein:
the upper surfaces of the two claw teeth are connected with two ends of the fulcrum beam; a threaded hole is formed in the center of the fulcrum beam; the ejector rod is provided with external threads and is connected with the fulcrum cross beam through a threaded hole.
Preferably, the support frame comprises two parallel clamping plates, and the two clamping plates are connected through two pull rods.
Preferably, the clamping plate is provided with a through hole for connecting the pull rod, and two ends of the pull rod are provided with fastening nuts.
Preferably, the claw teeth and the clamping plate are of an integrally formed structure.
Preferably, the claw teeth are connected with the clamping plate through clamping grooves or bolts.
Preferably, the upper surface of the claw tooth is provided with a threaded blind hole; the fulcrum beam is connected with the claw teeth through bolts.
The utility model has the advantages and the technical effect be:
the contact surface of the claw teeth and the belt pulley is an arc surface, and the arc surface is provided with a convex part matched with the pulley groove of the belt pulley; like this at the in-process of using, the stress surface between the arc surface of claw tooth and the belt pulley race increases, and then with stress dispersion, like this at the in-process of dismantling, can avoid the belt pulley to take place the damage very well.
The utility model provides a carriage includes the splint of two parallels, set up the through-hole of connecting the pull rod on the splint, the both ends of pull rod are provided with fastening nut, and at the in-process that uses, after passing the through-hole with the both ends of pull rod, utilize fastening bolt to realize fastening, easy operation is convenient.
Drawings
FIG. 1 is a block diagram of a preferred embodiment of the present invention;
FIG. 2 is a front view of the preferred embodiment of the present invention;
fig. 3 is a top view of the preferred embodiment of the present invention;
fig. 4 is an exploded view of the preferred embodiment of the present invention.
In the figure: 1. a splint; 2. claw teeth; 3. a pull rod; 4. a fulcrum beam; 5. a top rod; 6. a pulley.
Detailed Description
In order to make the above objects, control system and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1 to 4, a puller for a pulley comprises:
the supporting frame is sleeved on the outer side of the belt pulley 6 and is of a rectangular frame structure; in the preferred embodiment: the carriage includes splint 1 of two parallels, and two splint 1 connect through two pull rods 3, in order to satisfy the demand of not unidimensional belt pulley, and the size of carriage can realize size adjustment promptly, in this embodiment: a through hole connected with a pull rod 3 is formed in the clamping plate 1, and fastening nuts are arranged at two ends of the pull rod 3; when the clamping device is used, the two ends of the pull rod penetrate through the through holes and are fastened by the fastening bolts, so that the clamping plate can clamp the belt pulley, and the operation is simple and convenient;
two claw teeth 2 fixedly arranged on the inner side of the supporting frame; the contact surface of the claw teeth 2 and the belt pulley 6 is an arc surface, and the arc surface is provided with a convex part matched with a pulley groove of the belt pulley 6; the claw teeth 2 and the belt pulley 6 are tightly pressed and connected by the lug bosses; the existence of the arc surface can greatly increase the stress surface between the arc surface and the pulley groove of the belt pulley, so that the stress is dispersed, and the belt pulley can be well prevented from being damaged in the dismounting process;
the fulcrum beam 4 is positioned above the two claw teeth 2;
a mandril 5 arranged on the fulcrum beam 4; wherein:
the upper surfaces of the two claw teeth 2 are connected with two ends of a fulcrum beam 4; a threaded hole is formed in the center of the fulcrum beam 4; the ejector rod 5 is provided with external threads, and the ejector rod 5 is connected with the fulcrum cross beam 4 through a threaded hole.
In order to simplify the disassembling process, the claw teeth 2 and the clamping plate 1 are of an integrated structure.
Or to facilitate component replacement and maintenance: the claw teeth 2 are movably connected with the clamping plate 1, such as clamping groove connection (one side is provided with a connecting clamping groove, and the other side is provided with a bulge) or bolt connection;
the upper surface of the claw teeth 2 is provided with a threaded blind hole; the fulcrum beam 4 is connected with the claw teeth 2 through bolts.
The utility model discloses a theory of operation:
mounting a component: firstly, a pull rod 3 is arranged on the front side and the rear side of a belt pulley, then clamping plates 1 are connected to the two ends of the pull rod 3, and fastening is realized through nuts, so that the arc surfaces of the claw teeth 2 are tightly attached to a pulley groove of the belt pulley; finally, connecting the fulcrum beam 4 with the claw teeth 2;
disassembling: the mandril 5 is inserted into the threaded hole of the fulcrum beam 4 from top to bottom, the mandril 5 is rotated, so that the mandril 5 and the supporting frame are relatively displaced, the lower end of the mandril 5 is pushed onto the shaft of the belt pulley, the mandril 5 is continuously rotated, and the shaft can be ejected out from the lower part of the shaft hole of the belt pulley.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A puller special for a belt pulley; it is characterized by comprising:
a support frame of a rectangular frame structure;
two claw teeth (2) fixedly arranged on the inner side of the supporting frame; the contact surface of the claw teeth (2) and the belt pulley (6) is an arc surface, and the arc surface is provided with a convex part matched with a pulley groove of the belt pulley (6);
a fulcrum beam (4) positioned above the two claw teeth (2);
and a carrier rod (5); wherein:
the upper surfaces of the two claw teeth (2) are connected with the two ends of the fulcrum beam (4); a threaded hole is formed in the center of the fulcrum beam (4); the ejector rod (5) is provided with an external thread, and the ejector rod (5) is connected with the fulcrum cross beam (4) through a threaded hole.
2. The puller special for the belt pulley as claimed in claim 1, wherein: the support frame comprises two parallel clamping plates (1), and the two clamping plates (1) are connected through two pull rods (3).
3. The puller special for the belt pulley as claimed in claim 2, wherein: the clamping plate (1) is provided with a through hole for connecting the pull rod (3), and two ends of the pull rod (3) are provided with fastening nuts.
4. The puller special for the belt pulley as claimed in claim 1, wherein: the claw teeth (2) and the clamping plate (1) are of an integrally formed structure.
5. The puller special for the belt pulley as claimed in claim 1, wherein: the claw teeth (2) are connected with the clamping plate (1) through clamping grooves or bolts.
6. The puller special for the belt pulley as claimed in claim 1, wherein: the upper surface of the claw teeth (2) is provided with threaded blind holes; the fulcrum beam (4) is connected with the claw teeth (2) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221848367.5U CN217801478U (en) | 2022-07-18 | 2022-07-18 | Puller special for belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221848367.5U CN217801478U (en) | 2022-07-18 | 2022-07-18 | Puller special for belt pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217801478U true CN217801478U (en) | 2022-11-15 |
Family
ID=83967113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221848367.5U Active CN217801478U (en) | 2022-07-18 | 2022-07-18 | Puller special for belt pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217801478U (en) |
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2022
- 2022-07-18 CN CN202221848367.5U patent/CN217801478U/en active Active
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