CN217519097U

CN217519097U - Pump shaft anti-reversion device

Info

Publication number: CN217519097U
Application number: CN202221512214.3U
Authority: CN
Inventors: 俞礼锋; 陈聪
Original assignee: Hangzhou Kunyue Machinery Manufacturing Co ltd
Current assignee: Hangzhou Kunyue Machinery Manufacturing Co ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-09-30
Anticipated expiration: 2032-06-16

Abstract

The utility model relates to the technical field of pump shafts, in particular to a pump shaft anti-reversing device, which comprises a pump shaft main body and an anti-reversing main body, wherein the outer surface of the pump shaft main body is sheathed with the anti-reversing main body, the anti-reversing main body comprises an outer shaft ring and an inner shaft ring, the inner shaft ring is movably arranged in the outer shaft ring, a plurality of groups of rolling grooves distributed at equal intervals are arranged around the inner wall of the outer shaft ring, a roller is movably arranged in each group of rolling grooves, both ends of each group of rolling grooves are respectively provided with a movable end head and a locking end head, meanwhile, the roller is fixedly connected with the movable end head through a spring, when the inner shaft ring runs reversely, the roller is driven to move towards the locking end head in the rolling grooves, the spring is in an unfolding state, the roller is simultaneously contacted with the outer shaft ring and the inner shaft ring under the action of the spring, and is wedged into a whole, thereby bearing the reverse moment transferred by the inner shaft ring, therefore, the anti-reversion function can be achieved, and large loss and even damage of windings in the pump body caused by reversion can be effectively prevented.

Description

Pump shaft anti-reversion device

Technical Field

The utility model relates to a pump shaft technical field specifically is a pump shaft anti-reversion device.

Background

The main function of the pump shaft of the water pump is to transmit the torque input by the engine to the impeller and the fan, so as to provide the energy required by the work of the impeller and the fan, because the pump shaft of the water pump bears the bending moment and the torque simultaneously in the working process, the pump shaft belongs to a rotating shaft in the classification of the shafts, and the structure of the pump shaft of the water pump can be divided into two forms of a stepped shaft and an optical shaft according to the distribution and the installation conditions of the load along the axis, and the structure of the pump shaft of the water pump is determined by the overall arrangement, the stress, the position and the fixing method of the parts on the shaft, the type and the specification of the bearing, the processing and assembling requirements and the like.

Therefore, it is necessary to design a pump shaft anti-reverse device to solve the above problems in the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pump shaft anti-reversing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a pump shaft anti-reversion device, include the pump shaft main part and prevent reversing the main part, the surface cover of pump shaft main part is equipped with the anti-reversion main part, and prevent reversing the main part including outer axle collar and interior axle collar, interior axle collar movable mounting is in the inside of outer axle collar simultaneously, set up the rolling groove that a plurality of groups equidistance distributes around the outer axle collar inner wall, and the equal movable mounting in inside of every group rolling groove has the roller, simultaneously every group rolling groove both ends are equallyd divide and do not are provided with movable end, the locking end, meanwhile roller and movable end pass through spring fixed connection, including axle collar centre of a circle department run through and seted up the sawtooth groove, and the inner wall meshing of sawtooth groove installs the saw ring gear, the pump shaft main part runs through the centre of a circle department of installing at the saw ring gear simultaneously.

As the utility model discloses preferred scheme, the both ends that prevent reversing the main part are overlapped respectively and are equipped with first end cover, second end cover, and prevent reversing main part and first end cover, second end cover and pass through limit screw through connection, and limit screw is close to the equal spiral mounting of both ends department simultaneously and has fixation nut, and the bottom fixed mounting who prevents reversing the main part simultaneously has the mount pad, and the bottom of mount pad runs through and installs mounting bolt.

As the utility model discloses preferred scheme, pump shaft main part and sawtooth circle integrated into one piece.

As the preferable scheme of the utility model, the inner wall of a plurality of groups of equidistantly distributed rolling grooves is coated with lubricating oil.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, when interior collar when the pump shaft main part forward operation, it removes to the movable end to drive the roller in the inside of slot rolling, the spring is in compression state this moment, reach under the effect of certain centrifugal force simultaneously, the roller can break away from the contact with interior collar, thereby realize no wearing and tearing operation, when interior collar reverse operation, it removes to the locking end at the inside of slot rolling to drive the roller, the spring is in the expansion state this moment, make roller and outer collar simultaneously under the effect of spring, interior collar contact, and become an organic whole with its wedging, thereby bear the reverse moment who is sent by interior collar transfer, thereby can reach the anti-reversal function, and then can effectually prevent to reverse the big damage even of pump body internal winding loss that leads to the fact.

2. The utility model discloses in, through sawtooth groove and the saw ring gear that sets up can promote operating stability, the reliability of pump shaft main part greatly.

Drawings

Fig. 1 is a schematic view of the overall side-view plane external structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the whole front view plane of the present invention;

fig. 3 is a schematic view of the inner structure of the outer collar in front view;

fig. 4 is a schematic view of the inner shaft ring in the front view plane;

in the figure: 1. a pump shaft main body; 2. an anti-reversion body; 21. a first end cap; 22. a second end cap; 23. a limit screw; 24. fixing a nut; 25. a mounting seat; 26. installing a bolt; 3. an outer collar; 31. rolling a groove; 32. a roller; 33. a movable end; 34. locking the end head; 35. a spring; 4. an inner collar; 41. a sawtooth groove; 42. and (6) sawing the gear ring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention based on the embodiments of the present invention.

Please refer to fig. 1-4, the present invention provides a technical solution:

a pump shaft anti-reversion device comprises a pump shaft main body 1 and an anti-reversion main body 2, wherein the anti-reversion main body 2 is sleeved on the outer surface of the pump shaft main body 1, the anti-reversion main body 2 comprises an outer shaft ring 3 and an inner shaft ring 4, the inner shaft ring 4 is movably arranged inside the outer shaft ring 3, a plurality of groups of rolling grooves 31 distributed at equal intervals are formed in the periphery of the inner wall of the outer shaft ring 3, rollers 32 are movably arranged inside each group of rolling grooves 31, two ends of each group of rolling grooves 31 are respectively provided with a movable end 33 and a locking end 34, meanwhile, the rollers 32 are fixedly connected with the movable ends 33 through springs 35, a sawtooth groove 41 penetrates through the circle center of the inner shaft ring 4, a saw gear ring 42 is meshed with the inner wall of the sawtooth groove 41, the pump shaft main body 1 penetrates through the circle center of the saw gear ring 42, and when the inner shaft ring 4 rotates along with the pump shaft main body 1, the rollers 32 are driven to move towards the movable ends 33 inside the rolling grooves 31, at the moment, the spring 35 is in a compression state, and simultaneously, under the action of a certain centrifugal force, the roller 32 can be separated from the inner shaft ring 4 to realize abrasion-free operation, when the inner shaft ring 4 reversely operates, the roller 32 is driven to move towards the locking end 34 in the rolling groove 31, at the moment, the spring 35 is in an expansion state, and simultaneously, under the action of the spring 35, the roller 32 is in contact with the outer shaft ring 3 and the inner shaft ring 4 and is wedged into a whole to bear the reverse moment transmitted by the inner shaft ring 4, so that the anti-reverse function can be achieved, and further, the large loss and even damage of a winding in the pump body caused by reverse rotation can be effectively prevented.

The working principle is as follows: when the pump shaft is used, when the inner shaft ring 4 rotates along with the pump shaft main body 1 in the forward direction, the roller 32 is driven to move towards the movable end 33 in the rolling groove 31, the spring 35 is in a compressed state, and under the action of a certain centrifugal force, the roller 32 can be separated from the inner shaft ring 4, so that abrasion-free operation is realized, when the inner shaft ring 4 rotates in the reverse direction, the roller 32 is driven to move towards the locking end 34 in the rolling groove 31, the spring 35 is in an unfolded state, and the roller 32 is simultaneously contacted with the outer shaft ring 3 and the inner shaft ring 4 under the action of the spring 35 and is wedged into a whole, so that reverse torque transmitted by the inner shaft ring 4 is borne, so that the anti-reverse function can be realized, the loss and even damage of an internal winding caused by reverse rotation can be effectively prevented, and meanwhile, the running stability of the pump shaft main body 1 can be greatly improved through the arranged sawtooth groove 41 and the sawtooth ring 42, Reliability and certain popularization value.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pump shaft anti-reversion device, includes pump shaft main part (1) and anti-reversion main part (2), its characterized in that: the outer surface of the pump shaft main body (1) is sleeved with an anti-reversion main body (2), the anti-reversion main body (2) comprises an outer shaft ring (3) and an inner shaft ring (4), the inner shaft ring (4) is movably arranged in the outer shaft ring (3), a plurality of groups of rolling grooves (31) which are distributed at equal intervals are arranged on the periphery of the inner wall of the outer shaft collar (3), rollers (32) are movably arranged in each group of rolling grooves (31), meanwhile, both ends of each group of rolling grooves (31) are respectively provided with a movable end (33) and a locking end (34), meanwhile, the roller (32) and the movable end (33) are fixedly connected through a spring (35), a sawtooth groove (41) is arranged at the center of the inner shaft ring (4) in a penetrating way, a saw gear ring (42) is arranged on the inner wall of the sawtooth groove (41) in a meshing way, meanwhile, the pump shaft main body (1) penetrates through the circle center of the saw gear ring (42).

2. The pump shaft anti-reversing device according to claim 1, characterized in that: the anti-reversing main part is characterized in that the two ends of the anti-reversing main body (2) are respectively sleeved with a first end cover (21) and a second end cover (22), the anti-reversing main body (2) and the first end cover (21) and the second end cover (22) are connected in a penetrating manner through a limiting screw rod (23), meanwhile, the limiting screw rod (23) is close to the two ends and is spirally provided with a fixing nut (24), meanwhile, the bottom of the anti-reversing main body (2) is fixedly provided with a mounting seat (25), and the bottom of the mounting seat (25) is provided with a mounting bolt (26) in a penetrating manner.

3. The pump shaft anti-reversing device according to claim 1, characterized in that: the pump shaft main body (1) and the sawtooth ring (42) are integrally formed.

4. The pump shaft anti-reversing device according to claim 1, characterized in that: the inner walls of the groups of rolling grooves (31) distributed at equal intervals are coated with lubricating oil.