CN212337768U

CN212337768U - Driving machine

Info

Publication number: CN212337768U
Application number: CN202020471005.3U
Authority: CN
Inventors: 江方
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2021-01-12
Anticipated expiration: 2030-04-02

Abstract

The utility model provides a driving machine belongs to mechanical technical field. The problems of high energy consumption and low working efficiency of the existing driving machine are solved. This driving machine, which comprises a housin, the middle part axial of casing has linked firmly the pivot, the one end of pivot is the output, the coaxial cylinder body that has linked firmly in the pivot, be equipped with a plurality of piston cavity that use the pivot axis to evenly set up as the center on the cylinder body, all be equipped with the piston in the piston cavity, this driving machine is still including the fuel feeding mechanism that can supply oil to the piston cavity, the axis of piston is the slope setting with the axis of pivot, the axial links firmly can the pivoted revolving stage on the casing, the lower extreme of piston is equipped with the push rod, and the outer end homoenergetic of push rod supports and leans on the revolving stage, the piston can. The driving machine has the advantages that the piston is always in a state of driving the rotating shaft to rotate when the cylinder body maintains pressure, the working efficiency is high, and the energy is saved and the environment is protected.

Description

Driving machine

Technical Field

The utility model belongs to the technical field of machinery, a driving machine is related to.

Background

The driving machine is also called as a power machine and is widely applied to various industries at present. The problem of research in power engineering is that energy is converted and utilized to the maximum extent. China is the largest energy consuming country in the world, and the energy structure mainly comprises coal, electricity and petroleum for a long time. China has abundant coal resources, but coal combustion can generate a plurality of harmful substances to cause environmental pollution. The wide application of electric energy greatly solves the social productivity, but newly developed wind energy and solar energy bring great challenges to the power system in order to deal with climate change, protect ecological environment and accelerate transformation process continuously. Although the application of petroleum energy has no long history of coal, the petroleum energy is widely applied to various industries at present, and the petroleum belongs to primary energy and can be continuously reduced or even exhausted along with the increase of the demand of human society. Therefore, the petroleum energy is protected and the energy-saving consciousness is improved while the petroleum energy is used, so that the use efficiency of the limited energy can be improved in the utilization process of the limited energy, the emission of environmental pollution is reduced, and the utilization rate of the improved energy is unbearable. The energy, power technology and economy are combined, and the solar energy and power device is slowly popularized to the daily life of people, and has immeasurable prospect on social development.

A hydraulic pump/motor and fan drive device (application No. 200880125567.4) disclosed in chinese patent literature includes: a rotating shaft rotatably mounted in the housing; a cylinder that rotates together with the rotating shaft; a plurality of pistons fitted and inserted into a plurality of cylinder bores formed in the cylinder block and freely reciprocating; a swash plate which is provided in the housing so as to be inclined with respect to the rotary shaft and which slides the leading end portions of the plurality of pistons in a manner to be in slidable contact with the swash plate; and a valve plate that is in sliding contact with a rear end surface of the cylinder block, and a hydraulic pump/motor that circulates oil into the interior of the cylinder bore through a port provided in the valve plate. The hydraulic motor has the advantages that the swash plate is pushed to rotate through the reciprocating movement of the piston, so that the rotating shaft and the cylinder body are driven to rotate, the pressure maintaining of the cylinder body cannot be realized, the piston pushes the swash plate to rotate, and therefore, the hydraulic motor is high in energy consumption and low in working efficiency.

Disclosure of Invention

The utility model aims at having above-mentioned problem to current technique, make the piston be in driving pivot pivoted state, work efficiency height and energy-concerving and environment-protective driving machine all the time when having proposed a cylinder body pressurize.

The purpose of the utility model can be realized by the following technical proposal: the driving machine comprises a housing, the middle part axial of casing link firmly the pivot, the one end of pivot is the output, the pivot on the coaxial cylinder body that has linked firmly, the cylinder body on be equipped with a plurality of with the pivot axis be the piston cavity that the center evenly set up, the piston cavity in all be equipped with the piston, this driving machine still including the fuel feeding mechanism that can supply oil to the piston cavity, a serial communication port, the axis of piston with the axis of pivot be the slope setting, the casing on the axial link firmly can pivoted revolving stage, the lower extreme of piston be equipped with the push rod, just the outer end homoenergetic of push rod can support and lean on the revolving stage on, the piston can promote the push rod and make the push rod promote the revolving stage rotate.

One end of the rotating shaft is an output end, when the driving machine works, hydraulic oil is injected into a piston cavity of the cylinder body by the oil supply mechanism, the piston is driven to drive the push rod to bear force, the outer end of the push rod pushes the rotating platform, the axis of the piston is obliquely arranged with the rotating shaft and the axial direction of the rotating platform, so that the push rod pushes the rotating platform to rotate, the push rod, the cylinder body and the rotating shaft rotate along with the rotating platform, when the rotating shaft needs to rotate, pressure is maintained in the piston cavity in the cylinder body, the piston always pushes the push rod to bear force, the rotating platform keeps a rotating state, when the pressure in the piston cavity is weakened, the oil supply mechanism supplies oil to the piston cavity to realize pressure compensation, and the rotating shaft is ensured to normally operate.

In the above driving machine, the inner end of the rotating table is uniformly provided with a plurality of stress grooves with inclined notches, the direction of the notches of the stress grooves corresponds to the axial direction of the corresponding push rods, and the outer ends of the push rods are embedded in the corresponding stress grooves. The outer end of the push rod is embedded in the stress groove, so that the push rod pushes the rotary table to rotate, and the rotary table has the advantages of uniform and stable stress, high efficiency, simple structure and convenience in assembly.

In the above driving machine, the force-bearing groove has a force-bearing surface disposed obliquely therein, the force-bearing surface is disposed perpendicular to the axis of the corresponding piston, and the outer end surface of the push rod abuts against the corresponding force-bearing surface. Through setting up foretell stress surface, make the push rod can directly support and promote rotary platform to rotate on the stress surface that corresponds, it is even stable to have the atress, has improved the drive effect.

In the above driving machine, the rotating table is provided with a plurality of spherical grooves, the outer ends of the push rods are provided with spherical joints, and the spherical joints are embedded in the corresponding spherical grooves. Inlay in the sphere recess through ball joint, make the push rod promote the revolving stage and rotate, have the advantage that drive efficiency is high.

In the driving machine, springs are arranged at the inner ends of the push rods, one ends of the springs abut against the outer ends of the pistons, and the other ends of the springs abut against the corresponding push rods. When the rotary table works, the piston is pushed by the spring to enable the push rod to be stressed and drive the rotary table to rotate, and the spring is in a compressed state at the moment. When the work needs to be stopped, the pressure of the piston cavity is relieved, the spring pushes the piston to reset, the action force applied to the push rod and the rotating platform can be stopped in time, and the rotating shaft is conveniently braked.

In the driving machine, the inner end of the shell is fixedly connected with an oil tank, the middle part of the other end of the rotating shaft is provided with a circulation channel communicated with the piston cavity, an oil inlet of the oil supply mechanism is communicated with the oil tank, and an oil outlet of the oil supply mechanism can be communicated with the circulation channel. The piston cavity is supplied with oil and returned with oil through the oil tank fixedly connected on the shell, and the piston has the advantages of less oil consumption and simple and compact structure.

In the above driving machine, the oil supply mechanism includes a valve body fixedly connected to the housing, the valve body is provided with a hydraulic chamber, an oil inlet and an oil outlet communicated with the hydraulic chamber, the hydraulic chamber is provided with a first plunger, a first spring and a first steel ball, the first plunger can move in a reciprocating manner, the oil outlet is located between the first plunger and the oil inlet, the first spring pushes the first steel ball to block the oil inlet, and the oil outlet can be communicated with the circulation channel. When the hydraulic oil pump works, hydraulic oil in the hydraulic cavity is pushed into the circulation channel through the reciprocating movement of the first plunger. The first plunger piston can be manually operated, or a motor drives a cam to rotate, and the cam rotates to drive the first plunger piston to reciprocate.

In the above driving machine, the oil supply mechanism is a gear pump fixedly connected to the housing, an oil inlet of the gear pump is communicated with the oil tank, and an oil outlet of the gear pump is communicated with the circulation channel. The oil supply mechanism adopts a gear pump and has the advantages of simple structure, convenience in installation and reliability in work.

In the above-mentioned driving machine, the other end of the rotating shaft is provided with a pressure relief device, and the pressure relief device can relieve pressure of the flow passage. When the driving machine needs to stop working, the circulation channel is opened through the pressure relief device, so that the hydraulic oil in the piston cavity of the cylinder body flows back to the oil tank through the circulation channel.

In the driving machine, the pressure relief device comprises an ejector rod which is arranged on the valve body and can move in a reciprocating mode, a second spring and a second steel ball are arranged in the circulation channel, the other end of the rotating shaft is connected with a plug in a threaded mode, a conical sealing surface is arranged on the inner end surface of the plug, the second spring pushes the second steel ball to abut against the sealing surface, and the ejector rod can penetrate through the plug and push the second steel ball to separate from the sealing surface.

In the driving machine, when the oil supply mechanism injects hydraulic oil into the piston cavity, the hydraulic oil pushes the second steel ball to be separated from the sealing surface, so that the hydraulic oil is injected into the piston cavity through the circulation channel, after the pressure of the piston cavity reaches a set value, the oil supply mechanism stops supplying the oil, the second spring pushes the second steel ball to abut against the sealing surface, the piston cavity is maintained in pressure, the piston pushes the push rod to be stressed, so that the rotating table rotates, and the cylinder body and the rotating shaft are driven to rotate. After long-time work, after the pressure of the piston cavity is reduced, hydraulic oil can be injected into the circulation channel through the oil supply mechanism, so that the driving machine can always work, when the work needs to be stopped, the second steel ball is pushed by the ejector rod to be separated from the sealing surface of the plug, the hydraulic oil flows back to the oil tank body from the piston cavity through the circulation channel, the pressure maintaining and releasing are convenient, the work is convenient to stop, and the hydraulic oil tank has the advantages of being reliable and stable in work. The ejector rod can move manually, is in threaded connection with the valve body and rotates to realize the reciprocating movement of the ejector rod, so that the ejector rod pushes the second steel ball; the ejector rod moves in an electric mode, and the ejector rod is driven to move in a reciprocating mode by electrifying and powering off the electromagnetic coil.

In the driving machine, the middle part of the ejector rod is provided with a first backflow channel which can be communicated with the circulation channel, the valve body is provided with a second backflow channel, and the first backflow channel is communicated with the second backflow channel when the ejector rod pushes the second steel ball to be separated from the sealing surface.

In the above driving machine, the rotating shaft includes a first rotating shaft and a second rotating shaft which are coaxially arranged, the first rotating shaft is fixedly connected with the cylinder body, the outer end of the second rotating shaft extends out of the end part of the shell, and the inner end of the second rotating shaft is fixedly connected with the rotating table.

In the driving machine, two ends of the shell are fixedly connected with end covers, and a bearing is arranged between each end cover and the rotating shaft.

Compared with the prior art, the driving machine has the following advantages:

1. the oil supply mechanism injects hydraulic oil into a piston cavity of the cylinder body, drives the piston to drive the push rod to bear force, and enables the outer end of the push rod to push the rotating platform, so that the push rod, the cylinder body and the rotating shaft rotate along with the rotating platform. When the rotating shaft is required to keep rotating, pressure is maintained in the piston cavity on the cylinder body, the piston always pushes the push rod to enable the rotating platform to keep a rotating state, and the rotating table has the advantages of low energy consumption, high working efficiency, energy conservation, environmental protection and low working noise.

2. The direction of the notch of the stress groove corresponds to the axial direction of the corresponding push rod, the outer end of the push rod is embedded in the corresponding stress groove, and the outer end of the push rod is embedded in the stress groove, so that the push rod pushes the rotating table to rotate, and the rotating table has the advantages of uniform stress, high driving efficiency, simple structure and convenience in assembly;

3. be equipped with a plurality of spherical surface grooves on the revolving stage, the outer end of push rod all has ball joint, and ball joint inlays in the spherical surface groove that corresponds, makes the push rod promote the revolving stage and rotates, has the advantage that transmission efficiency is high.

Drawings

Fig. 1 is an exploded schematic view of the present drive machine.

Fig. 2 is a schematic sectional view of the present drive machine.

Fig. 3 is a schematic view of the interior of the housing of the drive machine.

Fig. 4 is a schematic sectional view B-B of fig. 3.

FIG. 5 is a schematic view of another embodiment of the pusher and the rotary table of the driving machine.

Fig. 6 is a schematic view of another embodiment of the present drive machine.

In the figure, 1, a housing 1; 2. a rotating shaft; 2a, a flow channel; 2b, a first rotating shaft; 2c, a second rotating shaft; 3. a cylinder body; 3a, a piston cavity; 4. a piston; 5. a rotating table; 5a, a stress groove; 5b, a stress surface; 5c, spherical grooves; 6. a push rod; 6a, a spherical joint; 7. a spring; 8. an oil tank; 9. an oil supply mechanism; 9a, a valve body; 9b, a hydraulic cavity; 9c, a first plunger; 9d, a first spring; 9e, a first steel ball; 10. a pressure relief device; 10a, a mandril; 10b, a first backflow channel; 10c, a second spring; 10d, steel balls II; 10e, a plug; 10f, a second backflow channel; 11. an end cap; 12. and a bearing.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, the driving machine comprises a housing 1, the middle part axial of casing 1 has linked firmly pivot 2, the coaxial cylinder body 3 that has linked firmly in pivot 2, be equipped with a plurality of piston cavity 3a that use the 2 axes of pivot as the even setting in center on the cylinder body 3, all be equipped with piston 4 in the piston cavity 3a, this driving machine is still including the fuel feeding mechanism 9 that can supply oil to piston cavity 3a, the axis of piston 4 is the slope setting with the axis of pivot 2, the axial has linked firmly can pivoted revolving stage 5 on the casing 1, the lower extreme of piston 4 is equipped with push rod 6, the inner of push rod 6 all is equipped with spring 7, the one end of spring 7 supports and leans on the outer end of piston 4, the other end of spring 7 supports and leans on corresponding push rod 6, the outer end of push rod 6 all can support and lean on revolving stage 5, piston 4. Two ends of the shell 1 are fixedly connected with end covers 11, and a bearing 12 is arranged between the end covers 11 and the rotating shaft 2.

The inner of revolving stage 5 evenly is equipped with the atress groove 5a that a plurality of notch slopes set up, the notch direction of atress groove 5a is corresponding with the axial of the push rod 6 that corresponds, the outer end of push rod 6 all inlays in the atress groove 5a that corresponds, the atress face 5b that has the slope to set up in the atress groove 5a, atress face 5b sets up with the axis that corresponds piston 4 is perpendicular, the outer terminal surface of push rod 6 supports and leans on the atress face 5b that corresponds, it is better to make revolving stage 5 atress, high transmission efficiency, simple structure and the comparatively convenient advantage of assembly.

As another mode, as shown in fig. 5, a plurality of spherical grooves 5c are provided on the rotating platform 5, the outer ends of the push rods 6 are provided with spherical joints 6a, and the spherical joints 6a are embedded in the corresponding spherical grooves 5c, so that the push rods 6 push the rotating platform 5 to rotate, which has the advantage of high transmission efficiency.

The inner end of the shell 1 is fixedly connected with an oil tank 8, the middle part of the other end of the rotating shaft 2 is provided with a circulation channel 2a communicated with the piston cavity 3a, an oil inlet of the oil supply mechanism 9 is communicated with the oil tank 8, and an oil outlet of the oil supply mechanism 9 can be communicated with the circulation channel 2 a. The oil supply mechanism 9 comprises a valve body 9a fixedly connected to the shell 1, a hydraulic cavity 9b, an oil inlet and an oil outlet which are communicated with the hydraulic cavity 9b are arranged in the valve body 9a, a first plunger 9c, a first spring 9d and a first steel ball 9e are arranged in the hydraulic cavity 9b, the first plunger 9c can move in a reciprocating mode, the oil outlet is located between the first plunger 9c and the oil inlet, the first spring 7 pushes the first steel ball 9e to seal the oil inlet, and the oil outlet can be communicated with the circulation channel 2 a. The first plunger 9c can be manually operated, or a motor drives a cam to rotate, and the cam rotates to drive the first plunger 9c to reciprocate.

As another mode, the oil supply mechanism 9 is a gear pump fixedly connected on the shell 1, an oil inlet of the gear pump is communicated with the oil tank 8, and an oil outlet of the gear pump is communicated with the circulation channel 2 a.

The other end of the rotating shaft 2 is provided with a pressure relief device 10, the pressure relief device 10 can relieve pressure of the circulation channel 2a, the pressure relief device 10 comprises an ejector rod 10a which is arranged on the valve body 9a and can move in a reciprocating mode, a second spring 10c and a second steel ball 10d are arranged in the circulation channel 2a, the other end of the rotating shaft 2 is in threaded connection with a plug 10e, a conical sealing surface is arranged on the inner end surface of the plug 10e, the second spring 10c pushes the second steel ball 10d to abut against the sealing surface, and the ejector rod 10a can penetrate through the plug 10e and push the second steel ball 10 d. The middle part of the ejector rod 10a is provided with a first backflow channel 10b which can be communicated with the flow channel 2a, the valve body 9a is provided with a second backflow channel 10f, and the first backflow channel 10b is communicated with the second backflow channel 10f when the ejector rod 10a pushes the second steel ball 10d to be separated from the sealing surface.

When the hydraulic driving mechanism works, hydraulic oil in the hydraulic cavity 9b is conveyed through the reciprocating movement of the plunger I9 c, the hydraulic oil pushes the steel ball II 10d to be separated from a sealing surface, the hydraulic oil is injected into the piston cavity 3a through the flow channel 2a, the piston 4 pushes the push rod 6 to enable the push rod 6 to push the rotating platform 5 to rotate, the spring 7 is in a compression state at the moment, when the pressure of the piston cavity 3a reaches a set value, the oil supply mechanism 9 stops supplying oil, the spring II 10c pushes the steel ball II 10d to abut against the sealing surface at the moment, the pressure of the piston cavity 3a is maintained, the piston 4 pushes the push rod 10a to enable the rotating platform 5 to keep rotating, the cylinder body 3 and the rotating shaft 2 to keep rotating, after the pressure of the piston cavity 3a is reduced after long-time work, hydraulic oil can be injected into the flow channel 2a through, when the work needs to be stopped, the ejector rod 10a pushes the second steel ball 10d to be separated from the sealing surface of the plug 10e, so that hydraulic oil flows back to the oil tank 8 from the piston cavity 3a through the circulation channel 2a, the first return channel 10b and the second return channel 10f, the spring 7 pushes the piston 4 to reset, the acting force applied to the push rod 6 and the rotating platform 5 can be stopped in time, the braking on the rotating shaft 2 is facilitated, the rotating shaft 2 stops working, and the driving machine has the advantages of being reliable and stable in work, low in energy consumption, high in working efficiency, energy-saving, environment-friendly and low in working noise.

The ejector rod 10a can move manually, the ejector rod 10a is in threaded connection with the valve body 9a, reciprocating movement of the ejector rod 10a is achieved by rotating the ejector rod 10a, and the ejector rod 10a pushes the second steel ball 10 d; the top rod 10a moves in an electric mode, and the top rod 10a is started to move in a reciprocating mode by powering on and powering off an electromagnetic coil, for example, an integrated multifunctional hydraulic element (application number: 201510143819) in Chinese patent.

Preferably, as shown in fig. 6, the rotating shaft 2 includes a first rotating shaft 2b and a second rotating shaft 2c, which are coaxially disposed, the first rotating shaft 2b is fixedly connected with the cylinder 3, an outer end of the second rotating shaft 2c extends out of an end of the housing 1, and an inner end of the second rotating shaft 2c is fixedly connected with the rotating table 5.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the housing 1, the rotating shaft 2, the flow passage 2a, the rotating shaft one 2b, the rotating shaft two 2c, the cylinder 3, the piston cavity 3a, the piston 4, the rotating table 5, the force receiving groove 5a, the force receiving surface 5b, the spherical groove 5c, the push rod 6, the spherical joint 6a, the spring 7, the oil tank 8, the oil supply mechanism 9, the valve body 9a, the hydraulic cavity 9b, the plunger one 9c, the spring one 9d, the steel ball one 9e, the pressure relief device 10, the push rod 10a, the return passage one 10b, the spring two 10c, the steel ball two 10d, the plug 10e, the return passage two 10f, the end cover 11, and the bearing 12 are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. Driving machine, including casing (1), the middle part axial of casing (1) link firmly pivot (2), pivot (2) on the coaxial cylinder body (3) that has linked firmly, cylinder body (3) on be equipped with a plurality of with pivot (2) axis piston cavity (3a) that evenly set up as the center, piston cavity (3a) in all be equipped with piston (4), this driving machine is still including can be to oil supply mechanism (9) of piston cavity (3a) fuel feeding, its characterized in that, the axis of piston (4) with the axis of pivot (2) be the slope setting, casing (1) on the axial link firmly can pivoted revolving stage (5), the lower extreme of piston (4) be equipped with push rod (6), just the outer end of push rod (6) all can support and lean on revolving stage (5), piston (4) can promote push rod (6) and make push rod (6) promote rotatory revolving stage (6) The table (5) rotates.

2. The driving machine according to claim 1, characterized in that the inner end of the rotating table (5) is uniformly provided with a plurality of force-receiving grooves (5a) with obliquely arranged notches, the direction of the notches of the force-receiving grooves (5a) corresponds to the axial direction of the corresponding push rods (6), and the outer ends of the push rods (6) are embedded in the corresponding force-receiving grooves (5 a).

3. The drive machine according to claim 2, characterized in that the force-bearing groove (5a) has a force-bearing surface (5b) arranged obliquely therein, the force-bearing surface (5b) is arranged perpendicular to the axis of the corresponding piston (4), and the outer end surface of the push rod (6) abuts against the corresponding force-bearing surface (5 b).

4. The drive machine according to claim 1, characterized in that the rotary table (5) is provided with a plurality of spherical grooves (5c), the outer ends of the push rods (6) are provided with spherical joints (6a), and the spherical joints (6a) are embedded in the corresponding spherical grooves (5 c).

5. A drive machine according to claim 1 or 2 or 3 or 4, characterized in that the inner ends of the push rods (6) are each sleeved with a spring (7), one end of the spring (7) abuts against the outer end of the piston (4), and the other end of the spring (7) abuts against the corresponding push rod (6).

6. The driving machine according to claim 1 or 2 or 3 or 4, characterized in that an oil tank (8) is fixedly connected to the inner end of the housing (1), a flow channel (2a) communicated with the piston cavity (3a) is arranged in the middle of the other end of the rotating shaft (2), an oil inlet of the oil supply mechanism (9) is communicated with the oil tank (8), and an oil outlet of the oil supply mechanism (9) can be communicated with the flow channel (2 a).

7. The drive machine according to claim 6, characterized in that the oil supply mechanism (9) comprises a valve body (9a) fixedly connected to the housing (1), a hydraulic chamber (9b) and an oil inlet and an oil outlet communicated with the hydraulic chamber (9b) are arranged in the valve body (9a), a first plunger (9c), a first spring (9d) and a first steel ball (9e) are arranged in the hydraulic chamber (9b), the plunger can move back and forth, the oil outlet is located between the plunger and the oil inlet, the first steel ball (9e) is pushed by the spring (7) to block the oil inlet, and the oil outlet can be communicated with the flow channel (2 a).

8. The driving machine according to claim 6, characterized in that the oil supply mechanism (9) is a gear pump fixedly connected to the housing (1), an oil inlet of the gear pump is communicated with the oil tank (8), and an oil outlet of the gear pump is communicated with the flow channel (2 a).

9. A drive machine according to claim 6, characterized in that the other end of the shaft (2) is provided with a pressure relief device (10) and that the pressure relief device (10) is capable of relieving the pressure in the flow-through channel (2 a).

10. The driving machine according to claim 9, wherein the pressure relief device (10) comprises a push rod (10a) which is arranged on the valve body (9a) and can move back and forth, a second spring (10c) and a second steel ball (10d) are arranged in the flow channel (2a), a plug (10e) is connected to the other end of the rotating shaft (2) in a threaded manner, a conical sealing surface is arranged on the inner end surface of the plug (10e), the second spring (10c) pushes the second steel ball (10d) to abut against the sealing surface, and the push rod (10a) can penetrate through the plug (10e) and push the second steel ball (10d) to separate from the sealing surface.

11. The driving machine according to claim 10, characterized in that the middle of the ram (10a) is provided with a first return channel (10b) which can be communicated with the flow channel (2a), the valve body (9a) is provided with a second return channel (10f), and the first return channel (10b) is communicated with the second return channel (10f) when the ram (10a) pushes the second steel ball (10d) to be separated from the sealing surface.

12. A driving machine according to claim 1 or 2 or 3 or 4, characterized in that the rotating shaft (2) comprises a first rotating shaft (2b) and a second rotating shaft (2c) which are coaxially arranged, the first rotating shaft (2b) is fixedly connected with the cylinder body (3), the outer end of the second rotating shaft (2c) extends out of the end part of the shell (1), and the inner end of the second rotating shaft (2c) is fixedly connected with the rotating table (5).

13. A drive machine according to claim 1 or 2 or 3 or 4, characterized in that the two ends of the housing (1) are fixedly connected with end caps (11), and a bearing (12) is arranged between the end caps (11) and the rotating shaft (2).