CN213425876U

CN213425876U - Novel rotor assembly structure for inner curve motor

Info

Publication number: CN213425876U
Application number: CN202022628072.4U
Authority: CN
Inventors: 李美钗; 李小亮; 王度; 徐霞
Original assignee: Shanghai Pohu Drive System Co ltd
Current assignee: Shanghai Pohu Drive System Co ltd
Priority date: 2020-11-14
Filing date: 2020-11-14
Publication date: 2021-06-11
Anticipated expiration: 2030-11-14

Abstract

The utility model discloses a novel inner curve is rotor assembly structure for motor, which comprises a rotor, the radial downthehole a plurality of pistons that are equipped with of rotor, the outside of piston is equipped with the sealing member, the inner chamber of piston is equipped with the axle bush, the outside of axle bush is equipped with cylindrical roller, the cylindrical roller both sides are equipped with the dog, the outside of dog is equipped with long screw and short screw, long screw and short screw install on the same side end face of rotor. The utility model discloses a be equipped with the dog of opening the straight line groove and fix the combination of long screw, the short screw on the rotor, guarantee that the piston only has sharp repetitive motion in the rotor bore, not only be applicable to the rotor assembly structure of double piston, still be applicable to the rotor assembly structure of single piston, have simple process, advantage that the reliability is high, have good machinability.

Description

Novel rotor assembly structure for inner curve motor

Technical Field

The utility model relates to the technical field of motors, specifically be a novel inner curve is rotor assembly structure for motor.

Background

The inner curve radial piston hydraulic motor is a low-speed large-torque hydraulic motor, and is widely applied to working conditions of coal machine markets, raise boring machines, crushers and the like.

In the inner curve radial piston hydraulic motor, the most critical part is a rotor assembly, the rotor assembly continuously rotates under the pushing of oil liquid, and the rotor assembly is output to corresponding equipment through a spline shaft, so that the conversion between hydraulic energy and kinetic energy is realized. An embodiment of the utility model provides a novel inner curve is rotor assembly structure for motor, it contains rotor, piston, axle bush, cylindrical roller, dog, sealing member, long screw, short screw. The radial direction of the rotor is provided with a plurality of holes for the piston to move, the piston is pushed by hydraulic pressure and acted by the counter-thrust of the stator, the rotor hole is internally provided with reciprocating linear motion and rotary motion, and the combination of the long screw and the short screw fixed on the end surface of the rotor and the stop block plays a good limiting role in order to prevent the rotary motion of the piston. The fixed long screw and the fixed short screw are arranged on the same side end face of the rotor, and meanwhile, a proper groove is formed in the stop block and matched with the screws to limit the angular rotation of the piston, so that the piston can only do linear motion and can not do rotary motion in the cavity of the rotor in the motion process of the piston.

Disclosure of Invention

An object of the utility model is to provide a novel rotor assembly structure for inner curve motor through the dog that is equipped with out the straight line groove and the combination of fixing long screw, the short screw on the rotor, guarantees that the piston only has the straight line repetitive motion in the rotor bore, not only is applicable to the rotor assembly structure of double piston, still is applicable to the rotor assembly structure of single piston, has simple process, advantage that the reliability is high, has good machinability.

The utility model provides a following technical scheme:

the utility model provides a novel inner curve is rotor assembly structure for motor, includes the rotor, be equipped with a plurality of pistons in the radial hole of rotor, the outside of piston is equipped with the sealing member, the inner chamber of piston is equipped with the axle bush, the outside of axle bush is equipped with cylindrical roller, the cylindrical roller both sides are equipped with the dog, the outside of dog is equipped with long screw and short screw.

Preferably, the stopper is fixed in the rotor hole by a long screw and a short screw.

Preferably, two ends of the outer end surface of the cylindrical roller are provided with stop blocks for limiting.

Preferably, the stopper is provided with a linear groove.

Preferably, the long screw and the short screw are fixed to the same side end surface of the rotor.

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

1. the utility model discloses a be equipped with the dog of division straight line groove and fix the combination of long screw, the short screw on the rotor, guarantee that the piston only has the straight line repetitive motion downthehole at the rotor.

2. The utility model discloses an aspect of the overall arrangement not only is applicable to the rotor assembly structure of double piston, still is applicable to the rotor assembly structure of single piston.

3. The utility model discloses simple process, reliability are high, have good machinability.

Drawings

FIG. 1 is a sectional view of the whole of the present invention;

fig. 2 is a sectional structure diagram of the single-row piston application of the present invention.

In the figure: 1. a rotor; 2. a piston; 3. bearing bushes; 4. a cylindrical roller; 5. a stopper; 6. a seal member; 7. a long screw; 8. short screws.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a novel rotor assembly structure for an inner curve motor comprises a rotor 1, a plurality of pistons 2 are arranged in radial holes of the rotor 1, sealing elements 6 are arranged on the outer sides of the pistons 2, bearing bushes 3 are arranged in inner cavities of the pistons 2, cylindrical rollers 4 are arranged on the outer sides of the bearing bushes 3, stop blocks 5 are arranged on two sides of each cylindrical roller 4, long screws 7 and short screws 8 are arranged on the outer sides of the stop blocks 5, and the long screws 7 and the short screws 8 are arranged on the end face of the same side of the rotor 1. The block 5 is fixed in the rotor 1 hole by a long screw 7 and a short screw 8. Two ends of the outer end surface of the cylindrical roller 4 are provided with stop blocks 5 for limiting. The stop block 5 is provided with a linear groove, and the stop block 5 provided with the linear groove and the combination of the long screw 7 and the short screw 8 fixed on the rotor 1 ensure that the piston 2 only moves linearly and repeatedly in the hole of the rotor 1.

The working principle is as follows: when hydraulic oil enters the rotor 1, the piston 2 communicated with the flow distribution hole of the rotor 1 is pushed to move linearly outwards, and when the cylindrical roller 4 in the inner cavity of the piston 2 is at the limit of the stroke, the force enables the cylindrical roller 4 to push the piston 2 to move linearly back in the cavity of the rotor 1 on one hand and to do rotary motion in the cavity of the rotor 1 on the other hand under the reaction thrust of an external part. Meanwhile, the cylindrical roller 4 also has two motions, on one hand, the cylindrical roller and the bearing bush 3 slide relatively, on the other hand, the cylindrical roller does a rotary motion in the cavity of the piston 2, the bearing bush 3 is arranged to eliminate the friction of the cylindrical roller 4, and the service life of the cylindrical roller 4 and the service life of the piston 2 are greatly prolonged. The rotation of the piston 2 in the rotor 1 is harmful, and the combination of the long screws 7 and the short screws 8 mounted on the end surface of the rotor 1 and the angular limit of the stop 5 counteracts the rotation force, so that the piston 2 can only move back and forth in the rotor 1 in a straight line without rotation. Such a group of movements drives the rotor 1 to continuously perform circular rotation, so that the rotor 1 can be used as output power to convert hydraulic energy into mechanical energy. The sealing element 6 is arranged on the outer side of the piston 2, so that the sealing effect is achieved in the linear extending or retracting work of the piston 2, the internal leakage of the motor is reduced, the friction between the piston 2 and the rotor 1 can be reduced, and the service life of the piston 2 is prolonged.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 novel inner curve is rotor assembly structure for motor, a serial communication port, including rotor (1), the radial downthehole a plurality of pistons (2) that are equipped with of rotor (1), the outside of piston (2) is equipped with sealing member (6), the inner chamber of piston (2) is equipped with axle bush (3), the outside of axle bush (3) is equipped with cylindrical roller (4), cylindrical roller (4) both sides are equipped with dog (5), the outside of dog (5) is equipped with long screw (7) and short screw (8).

2. The novel inner curve motor rotor assembly structure as claimed in claim 1, wherein the stopper (5) is fixed in the rotor (1) hole by means of long screw (7) and short screw (8).

3. The novel rotor assembly structure for the inner curve motor as claimed in claim 1, wherein both ends of the outer end surface of the cylindrical roller (4) are provided with stoppers (5) for limiting.

4. The novel inner curve motor rotor assembly structure as claimed in claim 1, wherein the stopper (5) is provided with a linear groove.

5. The rotor assembly structure for a new inner curve motor according to claim 1, characterized in that the long screw (7) and the short screw (8) are fixed on the same side end face of the rotor (1).