CN214464648U - Rotor assembly structure with high reliability - Google Patents

Abstract

The utility model discloses a rotor assembly structure of high reliability, including the rotor, radial hole has been seted up in the outside of rotor, and the inside of radial hole is equipped with a plurality of piston, and the inner chamber has been seted up at the top of piston, and the top of inner chamber is rotated through the axle bush and is connected with cylindrical roller, and the cover is equipped with two semicircle retaining rings between one side of radial hole and a plurality of cylindrical roller, and two semicircle retaining rings all through a plurality of heavy-duty elastic pin and one side fixed connection of radial hole, the utility model relates to a rotor assembly structure of high reliability, semicircle retaining ring use heavy-duty elastic pin to be fixed together with the rotor, lead to semicircle retaining ring to be difficult for droing in the motion, adopt heavy-duty elastic pin to increase the intensity of rotor assembly structure, prolong the life of motor; the bearing bush has the advantages that friction of the cylindrical roller is eliminated, the service lives of the cylindrical roller and the piston are greatly prolonged, and the structure is suitable for rotor assembly structures of double rows and three rows of pistons.

Description

Rotor assembly structure with high reliability

Technical Field

The utility model relates to a hydraulic motor rotor field specifically is a rotor assembly structure of high reliability.

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. In the rotor assembly structure commonly used in the market at present, the semicircular retaining ring for preventing the rotation of the piston and the circumferential roller is fixed on the periphery of the rotor by using a screw, and the screw is easy to fall off when the motor rotates at a high speed, so that the service life of the motor is influenced.

Disclosure of Invention

An object of the utility model is to provide a rotor assembly structure of high reliability to in solving the rotor assembly structure commonly used on the existing market that proposes in the above-mentioned background art, prevent that the rotatory semicircle retaining ring of piston and circumference roller is with the fix with screw in the rotor periphery, this screw causes easily and drops when the motor is high-speed rotatory, thereby has influenced the life's of motor problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a rotor assembly structure of high reliability, includes the rotor, radial hole has been seted up in the outside of rotor, the inside in radial hole is equipped with a plurality of piston, the inner chamber has been seted up at the top of piston, the top of inner chamber is rotated through the axle bush and is connected with cylindrical roller, the cover is equipped with two semicircle retaining rings between one side in radial hole and a plurality of cylindrical roller, and two the semicircle retaining ring is all through one side fixed connection of the heavy elastic pin in a plurality of and radial hole, the terminal surface of rotor both sides all is through a plurality of screw fixedly connected with retaining ring.

As a preferred technical scheme of the utility model, the circumference of rotor is equipped with a plurality of pinhole for connect heavy elastic pin, semicircle retaining ring and rotor.

As an optimized technical scheme of the utility model, the flow distribution hole has been seted up to the outer lane of rotor one end, just the flow distribution hole all communicates with each other with radial hole.

As an optimized technical scheme of the utility model, a plurality of the piston outside all fixes being equipped with the sealing member with the junction in radial hole.

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

1. the semi-circle retainer ring is fixed with the rotor by the heavy elastic pin, so that the semi-circle retainer ring is not easy to fall off in movement, the strength of the rotor assembly structure is improved by the heavy elastic pin, and the service life of the motor is prolonged;

2. the check rings and the semicircular check rings which are arranged on the end surfaces of the two sides of the rotor can ensure that the piston and the cylindrical roller do not turn over and rotate in the movement process of the motor, so that the piston only moves linearly in the radial hole without rotating, and the cylindrical roller is prevented from falling off;

3. the sealing element arranged on the piston plays a role in sealing, reduces the internal leakage of the motor, can reduce the friction between the piston and the rotor and prolongs the service life of the piston during the linear extension or retraction work of the piston;

4. the bearing bush has the function of eliminating the friction of the cylindrical roller, and the service life of the cylindrical roller and the piston is greatly prolonged;

5. the structure is suitable for rotor assembly structures with double rows and three rows of pistons.

Drawings

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

FIG. 2 is a visible overall view of the heavy duty spring pin of the present invention;

fig. 3 is a front view of the semicircular retaining ring of the present invention.

In the figure: 1. a rotor; 2. a piston; 3. bearing bushes; 4. a cylindrical roller; 5. a seal member; 6. a retainer ring; 7. a screw; 8. a heavy duty spring pin; 9. semicircular retaining rings.

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.

Please refer to fig. 1-3, the utility model provides a rotor assembly structure of high reliability, including rotor 1, radial hole has been seted up in rotor 1's the outside, the inside in radial hole is equipped with a plurality of piston 2, the inner chamber has been seted up at piston 2's top, the top of inner chamber is rotated through axle bush 3 and is connected with cylindrical roller 4, the cover is equipped with two semicircle retaining rings 9 between one side in radial hole and a plurality of cylindrical roller 4, and two semicircle retaining rings 9 all through one side fixed connection of the heavy elastic pin 8 of a plurality of and radial hole, the terminal surface of rotor 1 both sides all is through a plurality of screw 7 fixedly connected with retaining ring 6.

Preferably, the circumference of the rotor 1 is provided with a plurality of pin holes for connecting the heavy elastic pin 8, the semicircular retaining ring 9 and the rotor 1.

Preferably, the outer ring of one end of the rotor 1 is provided with a flow distribution hole, the flow distribution hole is communicated with the radial hole, and when hydraulic oil enters the rotor 1, the piston 2 communicated with the flow distribution hole is pushed to move outwards in a straight line.

Preferably, the sealing parts 5 are fixedly arranged at the connection parts of the outer sides of the plurality of pistons 2 and the radial holes, so that the sealing effect is achieved, the internal leakage of the motor is reduced, the friction between the pistons 2 and the rotor 1 can be reduced, and the service life of the pistons 2 is prolonged in the linear extending or retracting work of the pistons 2.

When the rotor assembly structure is used, hydraulic oil enters the rotor 1, the piston 2 communicated with the flow distribution hole 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 cylindrical roller 4 pushes the piston 2 to move linearly backwards in the radial hole of the rotor 1 on one hand and rotate in the cavity of the rotor 1 on the other hand under the reaction thrust of an external part; meanwhile, the cylindrical roller 4 has two movements, namely, the cylindrical roller and the bearing bush 3 slide relatively, and the cylindrical roller rotates in the inner cavity of the piston 2, so that the bearing bush 3 is arranged to eliminate friction of the cylindrical roller 4, and the service lives of the cylindrical roller 4 and the piston 2 are greatly prolonged; the rotation movement of the piston 2 in the radial hole is harmful and can cause the cylindrical roller 4 to fall off, and the retainer rings 6 and the semicircular retainer rings 9 which are arranged on the end surfaces of the two sides of the rotor 1 can ensure that the piston 2 and the cylindrical roller 4 do not turn over and rotate in the movement process of the motor, thereby ensuring that the piston 2 only moves linearly and does not rotate in the radial hole; the group of movements drives the rotor 1 to continuously do circular rotation motion, so that the rotor 1 can be used as output power to convert hydraulic energy into mechanical energy; the sealing element 5 arranged on the piston 2 plays a role in sealing in linear extension or retraction of the piston 2, internal leakage of a motor is reduced, friction between the piston 2 and the rotor 1 can be reduced, and the service life of the piston 2 is prolonged.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (4)

1. A high reliability rotor assembly structure comprising a rotor (1), characterized in that: radial hole has been seted up in the outside of rotor (1), the inside in radial hole is equipped with a plurality of piston (2), the inner chamber has been seted up at the top of piston (2), the top of inner chamber is passed through axle bush (3) and is rotated and be connected with cylindrical roller (4), the cover is equipped with two semicircle retaining rings (9) between one side in radial hole and a plurality of cylindrical roller (4), and two semicircle retaining ring (9) all are through one side fixed connection in heavy elastic pin (8) of a plurality of and radial hole, the terminal surface of rotor (1) both sides all is through a plurality of screw (7) fixedly connected with retaining ring (6).

2. A highly reliable rotor assembly structure as set forth in claim 1, wherein: the circumference of the rotor (1) is provided with a plurality of pin holes for connecting the heavy elastic pin (8), the semicircular retainer ring (9) and the rotor (1).

3. A highly reliable rotor assembly structure as set forth in claim 1, wherein: and the outer ring at one end of the rotor (1) is provided with flow distribution holes which are communicated with the radial holes.

4. A highly reliable rotor assembly structure as set forth in claim 1, wherein: and sealing elements (5) are fixedly arranged at the joints of the outer sides of the pistons (2) and the radial holes.

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