CN215358231U

CN215358231U - Motor belt pulley extractor

Info

Publication number: CN215358231U
Application number: CN202121229932.5U
Authority: CN
Inventors: 李兴华; 皇甫自愿; 邵勇; 赵永涛; 谭雪芹; 柏琳; 张少华; 张正臣; 李爱萍; 李石常
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-12-31
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses a motor belt pulley extractor, which can be quickly sleeved into a belt pulley for drawing operation by simply improving the structure of the existing three-jaw puller, and comprises a threaded sleeve and a spiral rod screwed with the threaded sleeve, wherein the outer edge of the threaded sleeve is provided with three circumferentially distributed lug parts, three connecting rods are respectively hinged with the three lug parts, and three pulling jaws are respectively hinged with the three connecting rods, and the motor belt pulley extractor is characterized in that: the upper portion of the threaded sleeve is fixedly provided with a sleeve, the outer edge of the sleeve is fixedly provided with three spring claws along the circumferential direction, and the three spring claws are connected with the three pull claws in a one-to-one correspondence mode, so that the pull claws can move along with the spring claws.

Description

Motor belt pulley extractor

Technical Field

The utility model relates to the technical field of manual disassembling tools, in particular to a motor belt pulley extractor.

Background

When the motor belt pulley is taken, a tool commonly used by workers at present is a three-jaw puller, the three-jaw puller mainly comprises a screw rod, a threaded sleeve, pulling jaws and other parts, the screw rod is matched with the threaded sleeve, the three pulling jaws are connected with the threaded sleeve through a connecting rod, when the three pulling jaws grasp the end face of the motor belt pulley, the screw rod is rotated, and the motor belt pulley is axially moved by utilizing the axial force generated by the matching of the screw rod and the threaded sleeve and taken out.

The problem that the prior art exists is that when a worker sleeves a three-jaw puller into a motor belt pulley, three pulling jaws are too flexible and are not easy to place on the end face of the belt pulley, because the three pulling jaws are respectively hinged with three connecting rods, the connecting rods are also hinged with screw sleeves, and no connection relation exists among the three pulling jaws, the three pulling jaws are not easy to operate when the three pulling jaws are sleeved into the belt pulley with a larger diameter, the worker can only hold two pulling jaws as much as possible with one hand during operation, the other hand operates the rest pulling jaw, and therefore hook portions of the three pulling jaws are placed on the end face of the belt pulley.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a motor belt pulley extractor which is characterized in that the existing three-jaw extractor is simply improved in structure, and connection is established for three pulling jaws, so that the purpose that the three pulling jaws can be quickly sleeved into a belt pulley for pulling operation is achieved.

The technical scheme is as follows: the utility model provides a motor pulley extractor, includes the swivel nut and revolves the hob that closes with the swivel nut, and the outer fringe of swivel nut has the ear of three circumference distribution, and three connecting rods are articulated with three ear respectively, and three draw the claw to articulate with three connecting rods respectively, characterized by: the upper portion of the threaded sleeve is fixedly provided with a sleeve, the outer edge of the sleeve is fixedly provided with three spring claws along the circumferential direction, and the three spring claws are connected with the three pull claws in a one-to-one correspondence mode, so that the pull claws can move along with the spring claws.

Furthermore, the sliding sleeve is arranged above the sleeve, the sliding sleeve is provided with three guide holes distributed along the circumferential direction, and each guide hole penetrates through one spring claw, so that the axial movement of the sliding sleeve can drive the spring claws to move.

Furthermore, the upper portion of the pull claw is provided with a circular rectangular hole, a pull ring penetrates through the circular rectangular hole and is sleeved with the pull ring, and the pull ring is connected with the upper portion of the spring claw.

Has the advantages that: the utility model discloses a through this action of deformation of spring claw, perhaps this action of deformation of axial displacement control spring claw through the sliding sleeve can make three draw the claw to receive the restraint simultaneously, compares with prior art, and the staff of being convenient for establishes this utility model cover on motor pulley, can improve the efficiency of getting the operation of motor pulley.

Drawings

FIG. 1 is a schematic elevation structure of the utility model;

fig. 2 is a schematic plan view of the present invention.

Description of reference numerals:

1. a screw rod; 2. a connecting rod; 3. pulling a claw; 4. a threaded sleeve; 5. an ear portion; 6. a sleeve; 7. a spring finger; 8. a sliding sleeve; 801. a guide hole; 9. a circular rectangular hole; 10. and (4) a pull ring.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to fig. 1 to 2.

It should be noted that the following description of the embodiments refers to the accompanying drawings, in which like numerals refer to the same or similar elements throughout the different views, unless otherwise specified.

With reference to fig. 1 to 2, the motor belt pulley extractor provided by the utility model comprises a screw sleeve 4 and a screw rod 1 screwed with the screw sleeve 4, wherein three circumferentially distributed ears 5 are arranged at the outer edge of the screw sleeve 4, the three connecting rods 2 are respectively hinged with the three ears 5, the three pulling claws 3 are respectively hinged with the three connecting rods 2, a sleeve 6 is fixedly arranged at the upper part of the screw sleeve 4, the sleeve 6 can also be fixedly arranged on the ears 5 at the outer edge of the screw sleeve 4, the outer edge of the sleeve 6 is fixedly provided with three spring claws 7 along the circumferential direction, during actual manufacturing, the spring claws 7 can be welded at the outer edge of the sleeve 6, and the three spring claws 7 are connected with the three pulling claws 3 in a one-to-one correspondence manner, so that the pulling claws 3 can follow the spring claws 7 to move.

According to the above-described embodiment of the present invention, it has been found that, due to the elasticity of the three spring fingers 7, when the three spring claws 7 are not stressed, the three spring claws 7 are in an unfolded state, at the moment, the lower parts of the three pull claws 3 correspondingly connected with the three spring claws 7 are in a buckled state, when a worker applies force to the spring claws 7, in the process of overcoming the elasticity of the spring claws 7, the three spring claws 7 are contracted to drive the three pull claws 3 to rotate, so that the lower parts of the three pulling claws 3 are unfolded, thus the three pulling claws 3 can follow the action of the three spring claws 7, since the spacing between the three spring fingers 7 is smaller than the spacing between the three pull fingers 3, the three spring fingers, in contrast to operating the three pull fingers 3 directly, three indirect operation of drawing claw 3 through three spring claw 7 of operation can be convenient for the staff with this utility model establish on motor pulley fast cover.

With reference to fig. 1 to 2, the extractor further includes a sliding sleeve 8, the sliding sleeve 8 is located above the sleeve 6, the sliding sleeve 8 is provided with three guide holes 801 distributed along the circumferential direction, and each guide hole 801 penetrates one spring claw 7, so that the axial movement of the sliding sleeve 8 can drive the spring claw 7 to move.

In the above embodiment of the present invention, the axial movement of the sliding sleeve 8 is utilized to overcome the elastic force of the three spring claws 7, so as to control the lower portions of the three pulling claws 3 to be unfolded simultaneously, and in the actual manufacturing process, a handle may be further disposed on the outer edge of the sliding sleeve 8 or the outer periphery of the sliding sleeve 8 is set to be a curved surface, so as to facilitate the movement of the sliding sleeve 8 when being operated by a worker.

With reference to fig. 1 to 2, a circular rectangular hole 9 is formed in the upper portion of the pull claw 3, a pull ring 10 is sleeved on the pull claw 3 through the circular rectangular hole 9, and the pull ring 10 is connected with the upper portion of the spring claw 7.

In the above embodiment of the present invention, the spring claw 7 is connected to the pulling claw 3 through the pulling ring 10, and the circular rectangular hole 9 is disposed at the upper portion of the pulling claw 3, this connection not only ensures that the spring claw 7 can drive the pulling claw 3 to move, but also can prevent the lower portion of the pulling claw 3 from being limited by the spring claw 7 during the buckling process because the pulling ring 10 can slide inside the circular rectangular hole 10.

To sum up, this utility model is to current three-jaw puller carry out simple institutional advancement, and the staff just can three simultaneous control through removing this action of sliding sleeve 8 and draw claw 3 to expand, consequently, the staff of being convenient for places fast and carries out the operation of belt bending wheel on motor pulley.

Claims

1. The utility model provides a motor belt pulley extractor, includes swivel nut [ 4 ] and with the screw rod [ 1 ] of swivel nut [ 4 ] spiral closure, the outer fringe of swivel nut [ 4 ] has three ear [ 5 ] of circumference distribution, three connecting rod [ 2 ] respectively with three ear [ 5 ] articulated, three draw the claw [ 3 ] respectively with three connecting rod [ 2 ] articulated, characterized by: the upper portion of the swivel nut (4) is fixedly provided with a sleeve (6), the outer edge of the sleeve (6) is fixedly provided with three spring claws (7) along the circumferential direction, and the three spring claws (7) are correspondingly connected with three pull claws (3) one by one, so that the pull claws (3) can move along with the spring claws (7).

2. The motor pulley extractor of claim 1 further comprising: the extractor further comprises a sliding sleeve (8), wherein the sliding sleeve (8) is located above the sleeve (6), three guide holes (801) distributed along the circumferential direction are formed in the sliding sleeve (8), and each guide hole (801) penetrates through one spring claw (7), so that the axial movement of the sliding sleeve (8) can drive the spring claws (7) to move.

3. The motor pulley extractor of claim 2 further comprising: the upper portion of the pull claw (3) is provided with a round and rectangular hole (9), a pull ring (10) is sleeved on the round and rectangular hole (9), and the pull ring (10) is connected with the upper portion of the spring claw (7).