CN213478558U

CN213478558U - Hydraulic driving motor

Info

Publication number: CN213478558U
Application number: CN202021993063.9U
Authority: CN
Inventors: 王利; 吴拥军
Original assignee: LUOYANG PETRO-CHEMICAL FITTINGS MANUFACTURING CO LTD
Current assignee: LUOYANG PETRO-CHEMICAL FITTINGS MANUFACTURING CO LTD
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-06-18
Anticipated expiration: 2030-09-14

Abstract

The utility model discloses a hydraulic drive motor, including last casing and lower casing, the internal roll of inferior valve is installed the cavity output shaft, and its characterized in that still includes the power supply mechanism of a drive cavity output shaft rotation, power supply mechanism contains: the track is fixedly connected with the upper shell and the lower shell, and a through hole with a quincunx cross section is formed in the track; and the driving disc is positioned in the through hole and is in transmission connection with the hollow output shaft. Has the advantages that: hydraulic drive motor compare traditional pnematic motor noise low, small need not to lay the pipeline, labour saving and time saving does not have high-speed running part moreover, each low-speed running part is sealed ripe reliable, sealing member long service life, transmission efficiency is high, power is reliable and stable, does not have lubricated bad problem, the practicality is good.

Description

Hydraulic driving motor

Technical Field

The utility model relates to a water conservancy decoking equipment field, concretely relates to water drive motor.

Background

An oil refining delay coking tower for petrochemical enterprises needs to regularly decoke a decoking device, the decoking device needs stable low-speed power in the decoking process, and whether the decoking device can keep stable low-speed operation directly influences the normal work of the decoking device.

In the conventional method, a pneumatic motor is adopted to drive a decoking device, and a drill rod extends into a coke tower while rotating in the decoking process, so that the decoking device completes decoking, however, the pneumatic motor has large volume, low efficiency and large noise, and a power wind pipeline needs to be laid, so that the cost is higher.

In addition, a method is that a water turbine speed reducer is used for driving a decoking device to work, high-pressure water enters through an upper joint at the upper part and drives a turbine to rotate when flowing through the turbine, a turbine shaft drives an output shaft to rotate at a low speed after being reduced by a cycloid speed reducer so as to drive the decoking device to decoke, because the turbine shaft at the upper part of the water turbine speed reducer is a high-speed rotating shaft, the rotating speed is 900-1500 rpm, the decoking water pressure for driving the water turbine to rotate is 16-32 Mpa, therefore, the sealing difficulty at the turbine shaft is higher, the service life of the sealing element is short, once the sealing fails, the lubricating oil and grease at the moving parts such as the bearing, the cycloid speed reducer mechanism and the like are easily washed away by high-pressure water, therefore, the moving parts are in a non-lubrication state for a long time, and the service life of the speed reducer is seriously influenced by the erosion effect of high-pressure water (the speed reducer can only be maintained for 3-6 months).

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hydraulic drive motor in order to solve above-mentioned problem, this hydraulic drive motor compares traditional pnematic motor efficiency height, and the noise is low, and is small, need not to lay the pipeline, labour saving and time saving, does not have lubricated bad problem moreover yet, long service life, and the practicality is good, sees the explanation below in detail.

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

the utility model provides a pair of hydraulic drive motor, including last casing and lower casing, the internal roll of inferior valve is installed the cavity output shaft, still includes the power supply mechanism of a drive cavity output shaft rotation, power supply mechanism contains:

the track is fixedly connected with the upper shell and the lower shell, and a through hole with a quincunx cross section is formed in the track;

the driving disc is positioned in the through hole and is in transmission connection with the hollow output shaft, and the driving disc rotates around the central axis of the through hole;

the piston assembly is arranged on the driving disc and can drive the driving disc to rotate after water is introduced; and

a distribution ring mounted on the piston assembly for controlling water flow into and out of the piston assembly;

the piston assembly includes:

the piston cavities are positioned on the driving disc, are multiple in number and are distributed in a centrosymmetric manner;

a piston slidably mounted within the piston chamber; and

the round ball is rotatably arranged on the piston and rolls close to the hole wall of the through hole;

the driving disc is provided with a plurality of driving disc water inlet and outlet channels communicated with different piston cavities, the flow distribution ring is provided with a plurality of flow distribution ring water inlet channels and flow distribution ring water return channels communicated with the different driving disc water inlet and outlet channels, and water flows enter the different piston cavities through the flow distribution ring water inlet channels and the driving disc water inlet and outlet channels to push the pistons to move so as to drive the driving discs to rotate;

and water in the piston cavity flows out of the power source mechanism through the driving disc water inlet and outlet channel and the flow distribution circulating water channel.

As an important design of the scheme, a speed regulating valve for regulating the flow velocity of water flow in the flow distribution ring is arranged in the upper shell.

As the optimal design of the scheme, an upper joint is installed at one end of the upper shell, and the upper joint is communicated with the hollow output shaft through a connecting pipe.

Has the advantages that: hydraulic drive motor compare traditional pnematic motor noise low, small need not to lay the pipeline, labour saving and time saving does not have high-speed running part moreover, each low-speed running part is sealed ripe reliable, sealing member long service life, transmission efficiency is high, power is reliable and stable, does not have lubricated bad problem, the practicality is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention taken along line a-a of fig. 1.

Fig. 3 is a cross-sectional view of the present invention relative to B-B of fig. 1.

Fig. 4 is a schematic structural view of the distribution ring.

The reference numerals are explained below:

1. the device comprises an upper joint, 2, an upper shell, 3, a connecting pipe, 4, a flow distribution ring, 5, a driving disc, 6, a piston assembly, 7, a rail, 8, a supporting plate, 9, a bearing, 10, a lower shell, 11, an adjusting nut, 12, a gland, 13, a hollow output shaft, 14, a filter screen, 15, a connecting pipe water inlet channel, 16, a connecting pipe annular water tank, 17, a speed regulating valve, 18, a pin hole, 19, an upper shell water inlet channel, 20, an upper shell annular water tank, 21, a flow distribution ring water inlet channel, 22, a flow distribution loop water inlet channel, 23, a driving disc water inlet channel, 24, a lower shell water outlet hole, 6-1, a piston cavity, 6-2, a piston, 6-3 and a ball.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A hydraulic drive motor comprises an upper shell 2 and a lower shell 10, wherein a hollow output shaft 13 is arranged in the lower shell 10 in a rolling mode, as shown in figure 1, the hollow output shaft 13 is arranged in the lower shell 10 in a self-rotating mode through a bearing 9, an adjusting nut 11 used for limiting the bearing 9 is arranged on the hollow output shaft 13 below the bearing 9, and a through hole through which high-pressure water passes is formed in the hollow output shaft 13;

the hydraulic driving motor further comprises a power source mechanism for driving the hollow output shaft 13 to rotate, and the power source mechanism comprises:

a rail 7 fixedly connected with the upper shell 2 and the lower shell 10 through a positioning pin and a stud, wherein a through hole with a quincunx cross section is formed in the rail 7, as shown in fig. 2 and 3;

the driving disc 5 is positioned in the through hole and is in transmission connection with the hollow output shaft 13, as shown in fig. 1, the hollow output shaft 13 is fixedly connected with the driving disc 5 through the supporting plate 8, and the driving disc 5 rotates around the central axis of the through hole;

the piston assembly 6 is arranged on the driving disc 5 and can drive the driving disc 5 to rotate after water is introduced; and

a distribution ring 4 installed on the piston assembly 6 between the inner cavity of the upper housing 2 and the connection pipe 3 for controlling water flow into and out of the piston assembly 6, i.e., for distributing high pressure water into the piston assembly 6;

as shown in fig. 2 and 4, the flow distribution ring 4 is fixedly connected with the upper shell 2 in a sealing manner, 8 flow distribution ring water inlet channels 21 (21-1 to 21-8 in fig. 2) and 8 flow distribution loop water inlet channels 22 (22-1 to 22-8 in fig. 2) are arranged in the flow distribution ring 4, the flow distribution ring water inlet channels 21 and the flow distribution loop water inlet channels 22 are circumferentially and uniformly distributed at intervals, an upper shell annular water tank 20 is formed between the flow distribution ring 4 and the inner cavity of the upper shell 2, and the upper shell annular water tank 20 is communicated with the flow distribution ring water inlet channels 21.

The piston assembly 6 includes:

the piston cavities 6-1 are arranged on the driving disc 5, are multiple in number and are distributed in a centrosymmetric manner, as shown in FIG. 3;

a piston 6-2 slidably mounted in the piston chamber 6-1; and

the round ball 6-3 is rotatably arranged on the piston 6-2 and rolls close to the hole wall of the through hole;

the driving disk 5 is provided with 10 driving disk water inlet and outlet channels 23, and the driving disk water inlet and outlet channels 23 are uniformly distributed on the circumference of the driving disk 5. One end of the driving disc water inlet and outlet channel 23 is communicated with the flow distribution ring water inlet channel 21 or the flow distribution ring water return channel 22 on the flow distribution ring 4, the other end is communicated with the piston cavity 6-1, and water flows through the flow distribution ring water inlet channel 21 and the driving disc water inlet and outlet channel 23 into different piston cavities 6-1 to push the piston 6-2 to move so as to drive the driving disc 5 to rotate; the water in the piston cavity 6-1 flows out of the power source mechanism through the driving disk water inlet and outlet channel 23 and the flow distribution loop water return channel 22, as shown in fig. 1, a lower shell water discharge hole 24 is arranged on the lower shell 10, and the water flowing out of the power source mechanism flows out of the lower shell water discharge hole 24 and leaves the hydraulic driving motor.

In order to facilitate the connection of the hydraulic drive motor and the high-pressure water pipe, an upper joint 1 is installed at one end of an upper shell 2, a pin hole 18 is formed in one end, close to the upper joint 1, of the upper shell 2 and used for positioning the upper joint 1 and the upper shell 2 by means of a pin shaft when the upper joint 1 and the upper shell 2 are installed, the upper joint 1 and a hollow output shaft 13 are communicated through a connecting pipe 3, as shown in fig. 1, the connecting pipe 3 is located in an inner cavity of the upper shell 2, a connecting pipe water inlet channel 15, a connecting pipe annular water tank 16 and a filter screen 14 are arranged in the connecting pipe 3, and the filter screen 14 can.

A speed regulating valve 17 is arranged in the upper shell 2, one end of the speed regulating valve 17 is communicated with the connecting pipe annular water tank 16, the connecting pipe water inlet channel 15 and the filter screen 14, and the other end is communicated with the flow distribution ring water inlet channel 21 through an upper shell water inlet channel 19.

The lower end of the lower shell 10 is fixedly provided with a gland 12, and the gland 12 is rolled on a hollow output shaft 13.

When the hydraulic drive motor works, high-pressure water enters the decoking device through the upper joint 1, one part of the high-pressure water enters the decoking device through the connecting pipe 3 and the hollow output shaft 13, the other part of the high-pressure water enters the flow distribution ring 4 through the filter screen 14 after being filtered and the flow rate of the high-pressure water is regulated through the speed regulating valve 17, the distributed high-pressure water enters the piston cavity 6-1 through the driving disc water inlet and outlet channel 23 and pushes the piston 6-2 to move, specifically, the high-pressure water is distributed into 8 flow distribution ring water inlet channels 21 (21-1-21-8 in fig. 2) through the flow distribution ring 4, and in the positions shown in fig. 2 and 3, the flow distribution ring water inlet channels 21 are communicated with 1#, 2#, 5#, 6#, 7 and 10# in the piston 6-2, and the high-pressure water enters the piston cavity 6-1 to push the 1#, 2#, 5#, 6#, 7#, 10#, the round ball 6-3 at the outer end of the piston 6-2 makes a lifting motion in the range of 0-22.5 degrees along the inner cavity wall of the track 7, the round ball 6-3 generates an acting force on the track 7, the track 7 generates a reaction force on the round ball 6-3, and the tangential component of the reaction force is acted on the driving disc 5, so that the driving disc 5 drives the hollow output shaft 13 to rotate at a low speed; taking 1# in the piston 6-2 as an example, when the lift range of the 1# piston works to 22.5 degrees, water inlet is finished, when the piston enters 22.5-45 degrees, the 1# piston cavity is communicated with the distributing loop water return channel 22 and starts to enter the return motion of the track 7, when the piston reaches 45 degrees, the return motion of the 1# piston is finished, so far, one lift range and one return range of the 1# piston are all finished, then the 1# piston enters the next lift range and the next return range, and the working conditions of the rest piston assemblies 6 are analogized.

The high-pressure water flows out of the cavity formed by the upper shell 2 and the lower shell 10 through 8 flow distribution circulating water pipelines 22 and finally flows out of the body through the lower shell water drain holes 24.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a hydraulic drive motor, includes upper housing and lower casing, the internal rolling of lower casing installs the cavity output shaft, its characterized in that still includes a power supply mechanism of drive cavity output shaft rotation, power supply mechanism contains:

the piston assembly includes:

a piston slidably mounted within the piston chamber; and

2. A hydraulic drive motor as defined in claim 1, wherein: and a speed regulating valve for regulating the flow velocity of water flow in the flow distribution ring is arranged in the upper shell.

3. A hydraulic drive motor as defined in claim 1, wherein: an upper joint is installed at one end of the upper shell, and the upper joint is communicated with the hollow output shaft through a connecting pipe.