阅读说明：本技术 一种通海阀机电静压驱动装置 (Sea valve electromechanical static pressure driving device ) 是由 周元 黄晓黎 黄小勇 于 2020-12-18 设计创作，主要内容包括：本发明公开一种通海阀机电静压驱动装置,包括动力传输装置和液压控制系统,液压控制系统包括：摆动油缸、油箱、油泵、换向阀；摆动油缸的输出端与曲轴连杆机构固定连接；油泵的进油口与油箱通过管路连接,油泵连接有电机；换向阀设置在油泵与摆动油缸之间的管路上。本申请提供的通海阀机电静压驱动装置,通过在摆动油缸上设置油箱、油泵和电机,当需要启动驱动装置时,电机驱动油泵向摆动油缸供油,摆动油缸旋转带动曲轴旋转,曲轴旋转带动连杆将顶杆推出或收回,避免了通过外部液压管路向驱动装置供油,减少舰上管路的数量,减小了占用空间。(The invention discloses an electro-static pressure driving device of a sea valve, which comprises a power transmission device and a hydraulic control system, wherein the hydraulic control system comprises: the device comprises a swing oil cylinder, an oil tank, an oil pump and a reversing valve; the output end of the swing oil cylinder is fixedly connected with the crankshaft connecting rod mechanism; an oil inlet of the oil pump is connected with the oil tank through a pipeline, and the oil pump is connected with a motor; the reversing valve is arranged on a pipeline between the oil pump and the swing oil cylinder. The application provides a sea valve electromechanical static pressure drive arrangement, through set up oil tank, oil pump and motor on swing hydro-cylinder, when needs start drive arrangement, the motor drive oil pump supplies oil to swing hydro-cylinder, and swing hydro-cylinder is rotatory to drive the bent axle rotatory, and the bent axle rotation drives the connecting rod and releases or withdraws the ejector pin, has avoided supplying oil to drive arrangement through outside hydraulic pressure pipeline, reduces the quantity of pipeline on the warship, has reduced occupation space.)

1. The sea valve electromechanical static pressure driving device is characterized by comprising a power transmission device and a hydraulic control system, wherein the power transmission device comprises a hydraulic machine and a crankshaft connecting rod mechanism, a top rod is arranged in the hydraulic machine, and the top rod is hinged with the crankshaft connecting rod mechanism;

the hydraulic control system includes: the device comprises a swing oil cylinder, an oil tank, an oil pump and a reversing valve;

the output end of the swing oil cylinder is fixedly connected with the crankshaft connecting rod mechanism;

an oil inlet of the oil pump is connected with the oil tank through a pipeline, the oil pump is connected with a motor, an oil outlet of the oil pump is connected with an oil inlet of the swing oil cylinder through a pipeline, and an oil outlet of the swing oil cylinder is connected to a pipeline between the oil inlet of the oil pump and the oil tank;

the reversing valve is arranged on a pipeline between the oil pump and the swing oil cylinder, a pipeline between an oil outlet of the oil pump and an oil inlet of the swing oil cylinder is connected with an inlet of the reversing valve, and a pipeline of an oil outlet of the swing oil cylinder is connected with an outlet of the reversing valve.

2. The sea chest electro-hydrostatic driver of claim 1, wherein said swing cylinder output is splined to said crankshaft of said crankshaft linkage, said crankshaft end being externally splined and said swing cylinder output being internally splined.

3. The sea valve electro-static pressure driving device of claim 1, wherein two ends of the crankshaft are fixedly connected with the hydraulic machine through a bearing bush and a bearing cover.

4. The sea valve electromechanical static pressure driving device according to claim 1, wherein a first transition flange is integrally formed at one end of the swing cylinder corresponding to the crankshaft, a second transition flange is fixedly arranged at a position of the hydraulic machine corresponding to the first transition flange, and the first transition flange and the second transition flange are fixedly connected through bolts.

5. The sea valve electromechanical static pressure driving device according to claim 1, wherein a high pressure sensor and a filter are disposed on a pipeline between an oil outlet of the oil pump and the reversing valve, a low pressure sensor and a pressure relief exhaust valve are disposed on a pipeline between the oil tank and an oil inlet of the oil pump, a high pressure safety valve is disposed between a pipeline between an oil outlet of the oil pump and the reversing valve and a pipeline between the oil tank and an oil inlet of the oil pump, and a hydraulic lock is disposed between the reversing valve and the swing cylinder; the driving device further comprises a controller, and the high-voltage sensor and the low-voltage sensor are electrically connected with the controller respectively.

6. The sea chest electro-hydrostatic drive of claim 5 wherein a pressure sensor and a bypass valve are provided in the conduit between said reversing valve and said swing cylinder, said pressure sensor being electrically connected to said controller.

7. The sea valve electro-mechanical hydrostatic driving device of claim 6, wherein the swing cylinder is arranged on the side of the hydraulic machine, and a mounting platform is arranged on the top of the swing cylinder; the oil tank, the oil pump, the reversing valve, the high-pressure sensor, the filter, the low-pressure sensor, the pressure relief exhaust valve, the high-pressure safety valve, the pressure sensor and the bypass valve are integrated on the mounting platform.

8. The sea chest electro-hydrostatic actuator of claim 7, further comprising a housing fixedly mounted to said swing cylinder, said tank, said oil pump, said diverter valve, said high pressure sensor, said filter, said low pressure sensor, said pressure relief vent valve, said high pressure relief valve, said pressure sensor, said bypass valve, and said controller being fixedly mounted to said housing; the motor is mounted on the side of the housing.

9. The sea valve electro-mechanical static pressure driving device according to claim 1, wherein the oil tank is a self-pressurization oil tank, and a filling oil port is arranged on the oil tank.

10. The sea chest electro-hydrostatic drive of claim 1 wherein said hydraulic machine comprises a housing and a ram, said ram disposed in said housing, said ram comprising:

the connecting rod is arranged at one end of the body, and a coaxial blind hole is formed in one end, corresponding to the connecting rod, of the body;

the buffer mechanism is arranged in the blind hole and comprises a first sleeve, a second sleeve, a connecting piece and an elastic piece, the first sleeve penetrates through the hollow part of the elastic piece, one end, far away from the connecting rod, of the first sleeve protrudes outwards to form a convex shoulder, the connecting piece is arranged at one end, close to the connecting rod, of the elastic piece, the connecting piece is connected with the connecting rod, the second sleeve is fixedly arranged on the end face, close to the elastic piece, of the connecting piece, the second sleeve is sleeved outside the first sleeve, and the second sleeve presses on the elastic piece;

the buffer mechanism further comprises a central rod, the central rod is fixedly connected to the end face, close to the elastic piece, of the connecting piece, and the central rod is inserted into a through hole in the middle of the first sleeve;

the end of the center rod extends out of the first sleeve and is provided with a first pin.

Technical Field

The invention relates to the technical field of ship transmission devices, in particular to an electromechanical static pressure driving device of a sea valve.

Background

The sea valve driving device is used for driving a sea valve and a transmission mechanism on a submarine to smoothly open and close an air inlet and outlet of a ballast water tank within a specified time without clamping stagnation.

The existing sea valve driving device needs to adopt hydraulic oil provided by a hydraulic pipeline system on a boat as a power source during working, needs to arrange a special hydraulic machine oil supply pipeline on the boat to provide power for the hydraulic machine, and occupies a large space on the boat.

Disclosure of Invention

The application provides a sea valve electromechanical static pressure drive arrangement, has solved among the prior art sea valve drive arrangement and outside hydraulic line interface too much, leads to hydraulic line system to move towards complicated, the big technical problem of occupation space.

The application provides a sea valve electro-static pressure driving device which comprises a power transmission device and a hydraulic control system, wherein the power transmission device comprises a hydraulic machine and a crankshaft connecting rod mechanism, a push rod is arranged in the hydraulic machine, and the push rod is hinged with the crankshaft connecting rod mechanism;

the hydraulic control system includes: the device comprises a swing oil cylinder, an oil tank, an oil pump and a reversing valve;

the output end of the swing oil cylinder is fixedly connected with the crankshaft connecting rod mechanism;

an oil inlet of the oil pump is connected with the oil tank through a pipeline, the oil pump is connected with a motor, an oil outlet of the oil pump is connected with an oil inlet of the swing oil cylinder through a pipeline, and an oil outlet of the swing oil cylinder is connected to a pipeline between the oil inlet of the oil pump and the oil tank;

the reversing valve is arranged on a pipeline between the oil pump and the swing oil cylinder, a pipeline between an oil outlet of the oil pump and an oil inlet of the swing oil cylinder is connected with an inlet of the reversing valve, and a pipeline of an oil outlet of the swing oil cylinder is connected with an outlet of the reversing valve.

Preferably, the output end of the swing oil cylinder is connected with a crankshaft of the crankshaft connecting rod mechanism through a spline, the end part of the crankshaft is provided with an external spline, and the output end of the swing oil cylinder is provided with an internal spline.

Preferably, two ends of the crankshaft are fixedly connected with the hydraulic machine through a bearing bush and a bearing cover.

Preferably, a first transition flange is integrally formed at one end of the swing oil cylinder corresponding to the crankshaft, a second transition flange is fixedly arranged at a position of the hydraulic machine corresponding to the first transition flange, and the first transition flange is fixedly connected with the second transition flange through bolts.

Preferably, a high-pressure sensor and a filter are arranged on a pipeline between an oil outlet of the oil pump and the reversing valve, a low-pressure sensor and a pressure relief exhaust valve are arranged on a pipeline between the oil tank and an oil inlet of the oil pump, a high-pressure safety valve is arranged between a pipeline between the oil outlet of the oil pump and the reversing valve and a pipeline between the oil tank and the oil inlet of the oil pump, and a hydraulic lock is arranged between the reversing valve and the swing oil cylinder; the driving device further comprises a controller, and the high-voltage sensor and the low-voltage sensor are electrically connected with the controller respectively.

Preferably, a pressure sensor and a bypass valve are arranged on a pipeline between the reversing valve and the swing oil cylinder, and the pressure sensor is electrically connected with the controller.

Preferably, the swing oil cylinder is arranged on the side surface of the hydraulic machine, and the top of the swing oil cylinder is provided with an installation platform; the oil tank, the oil pump, the reversing valve, the high-pressure sensor, the filter, the low-pressure sensor, the pressure relief exhaust valve, the high-pressure safety valve, the pressure sensor and the bypass valve are all integrated on the mounting platform,

preferably, the driving device further comprises a housing, the housing is fixedly arranged on the swing oil cylinder, the oil tank, the oil pump, the reversing valve, the high-pressure sensor, the filter, the low-pressure sensor, the pressure relief exhaust valve, the high-pressure safety valve, the pressure sensor and the bypass valve are all arranged in the housing, and the controller is fixedly arranged outside the housing; the motor is mounted on the side of the housing.

Preferably, the oil tank is a self-pressurization oil tank, and a filling oil port is arranged on the oil tank.

Preferably, the hydraulic machine comprises a housing and a ram, the ram being disposed in the housing, the ram comprising:

the connecting rod is arranged at one end of the body, and a coaxial blind hole is formed in one end, corresponding to the connecting rod, of the body;

the buffer mechanism is arranged in the blind hole and comprises a first sleeve, a second sleeve, a connecting piece and an elastic piece, the first sleeve penetrates through the hollow part of the elastic piece, one end, far away from the connecting rod, of the first sleeve protrudes outwards to form a convex shoulder, the connecting piece is arranged at one end, close to the connecting rod, of the elastic piece, the connecting piece is connected with the connecting rod, the second sleeve is fixedly arranged on the end face, close to the elastic piece, of the connecting piece, the second sleeve is sleeved outside the first sleeve, and the second sleeve presses on the elastic piece;

the buffer mechanism further comprises a central rod, the central rod is fixedly connected to the end face, close to the elastic piece, of the connecting piece, and the central rod is inserted into a through hole in the middle of the first sleeve;

the end of the center rod extends out of the first sleeve and is provided with a first pin.

The beneficial effect of this application is as follows:

according to the sea valve electro-static pressure driving device, the oil tank, the oil pump and the motor are arranged on the swing oil cylinder, when the driving device needs to be started, the motor drives the oil pump to supply oil to the swing oil cylinder, the swing oil cylinder rotates to drive the crankshaft to rotate, the crankshaft rotates to drive the connecting rod to push out or withdraw the ejector rod, oil is prevented from being supplied to the driving device through an external hydraulic pipeline, the number of pipelines on a ship is reduced, and the occupied space is reduced; meanwhile, the piston of the swing oil cylinder converts general linear motion into rotary motion, a mode that a rack drives a crankshaft to rotate is replaced, the arrangement of the rack in the hydraulic machine is reduced, and the occupied space of the hydraulic machine is reduced.

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 will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of a crankshaft structure according to an embodiment of the present application;

FIG. 3 is a second schematic view of the crankshaft structure in the embodiment of the present application;

FIG. 4 is a partial cross-sectional view of a swing cylinder in an embodiment of the present application;

FIG. 5 is a schematic diagram of a hydraulic system in an embodiment of the present application;

FIG. 6 is a schematic diagram of a top rod structure in the embodiment of the present application;

fig. 7 is a schematic structural diagram of a buffering mechanism in an embodiment of the present application.

Wherein, 10-a hydraulic press and 11-a mandril; 12-a crankshaft; 13-a connecting rod; 14-a groove; 15-swing oil cylinder; 16-external splines; 17-internal splines; 18-a fuel tank; 19-oil filling port; 20-an oil pump; 21-a motor; 22-a diverter valve; 23-hydraulic lock; 24-bearing bush; 25-a bearing cap; 26-a first transition flange; 27-a second transition flange; 28-a housing; 281-a mounting platform; 29-high pressure sensor; 30-a filter; 31-a low pressure sensor; 32-pressure relief vent valve; 33-high pressure safety valve; 34-a controller; 35-a pressure sensor; 36-a bypass valve; 101-a housing; 102-a sealing ring; 103-sealing filler; 111-a body; 112-blind holes; 40-a buffer mechanism; 41-a first sleeve; 42-a second sleeve; 43-a connector; 44-an elastic member; 45-shoulder; 46-a central rod; 47-a first pin; 48-a compression nut; 49-an adapter rod; 50-a slide block; 51-a second pin; 52-elongated holes; 53-limiting key.

Detailed Description

The embodiment of the application provides one kind, has solved among the prior art sea valve drive arrangement and outside hydraulic line interface too much, leads to hydraulic line system to move towards complicated, the big technical problem of occupation space.

In order to solve the technical problems, the general idea of the embodiment of the application is as follows:

as shown in fig. 1, 2, 3 and 4, the application provides an electro-static pressure driving device of a sea valve, which comprises a power transmission device and a hydraulic control system, wherein the power transmission device comprises a hydraulic machine and a crankshaft connecting rod mechanism, a push rod is arranged in the hydraulic machine 10 and is hinged with a connecting rod of the crankshaft connecting rod mechanism, a crankshaft 12 is rotatably arranged at the lower end of the hydraulic machine 10, the axis of the crankshaft 12 is perpendicular to the axis of the push rod 11, a connecting rod 13 is arranged between the crankshaft 12 and the push rod 11, two ends of the connecting rod 13 are respectively hinged with a groove 14 in the middle of the crankshaft 12 and the push rod 11, and an axial oil groove of the crankshaft 12 is communicated with; a swing oil cylinder 15 is arranged on the side surface of the hydraulic machine 10 corresponding to the position of the crankshaft 12, the output end of the swing oil cylinder 15 is connected with the end part of the crankshaft 12 through a spline, the end part of the crankshaft 12 is provided with an external spline 16, the output end of the swing oil cylinder 15 is provided with an internal spline 17, the internal spline 17 adopts 49 teeth, the modulus is 1, the pressure angle is 30 degrees, and the tooth groove width precision is 7 levels; an oil tank 18 is arranged on the swing oil cylinder 15, the oil tank 18 is a self-pressurization oil tank 18 in the embodiment, and a filling oil port 19 is arranged on the oil tank 18; an oil pump 20 is arranged on the swing oil cylinder 15, an oil inlet of the oil pump 20 is connected with the oil tank 18 through a pipeline, the oil pump 20 is connected with a motor 21, an oil outlet of the oil pump 20 is connected with an oil inlet of the swing oil cylinder 15 through a pipeline, and an oil outlet of the swing oil cylinder 15 is connected with a pipeline between the oil inlet of the oil pump 20 and the oil tank 18; a reversing valve 22 is arranged on a pipeline between the oil pump 20 and the swing oil cylinder 15, in the embodiment, the reversing valve 22 is a rotary direct drive valve, a pipeline between an oil outlet of the oil pump 20 and an oil inlet of the swing oil cylinder 15 is connected with an inlet of the reversing valve 22, a pipeline of an oil outlet of the swing oil cylinder 15 is connected with an outlet of the reversing valve 22, and a hydraulic lock 23 is arranged between the reversing valve 22 and the swing oil cylinder 15, so that the position of the swing oil cylinder 15 can be fixed and bear a certain load when the swing oil cylinder stops working, the situation that the position of the ejector rod 11 cannot be locked is avoided, the oil tank, the oil pump, the motor and the reversing valve are all arranged on the swing oil cylinder, an independent oil source control mode of the driving device is realized, and the driving device only needs to be connected with an upper computer electric cable, and only needs to be started when the driving.

In the above embodiment, by arranging the oil tank 18, the oil pump 20 and the motor 21 on the swing oil cylinder 15, when the driving device needs to be started, the motor 21 drives the oil pump 20 to supply oil to the swing oil cylinder 15, the swing oil cylinder 15 rotates to drive the crankshaft 12 to rotate, and the crankshaft 12 rotates to drive the connecting rod 13 to push out or retract the ejector rod 11, so that oil is prevented from being supplied to the driving device through an external hydraulic pipeline, the number of pipelines on a ship is reduced, and the occupied space is reduced; meanwhile, the piston of the swing oil cylinder 15 converts general linear motion into rotary motion, a mode that a rack drives the crankshaft 12 to rotate is replaced, the arrangement of the rack in the hydraulic machine 10 is reduced, and the occupied space of the hydraulic machine 10 is reduced.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

As shown in fig. 1 and 4, in order to solve the technical problem of difficulty in disassembling the driving device in the prior art, the present application provides an electro-static pressure driving device for a sea valve, two ends of a crankshaft 12 are fixedly connected with a hydraulic machine 10 through a bearing bush 24 and a bearing cover 25, the connection between the bearing bush 24 and the bearing cover 25 and the fixing structure between the bearing bush 24 and the bearing cover 25 and the hydraulic machine 10 are conventional means of those skilled in the art, and no further description is provided herein.

A first transition flange 26 is integrally formed at one end, corresponding to the crankshaft 12, of the swing oil cylinder 15, a second transition flange 27 is fixedly arranged at a position, corresponding to the first transition flange 26, of the hydraulic machine 10, and the first transition flange 26 and the second transition flange 27 are fixedly connected through bolts, so that the swing oil cylinder 15 and the hydraulic machine 10 are convenient to detach and install.

As shown in fig. 1 and 5, in order to solve the technical problem that the pressure of the hydraulic pipeline of the driving device in the prior art cannot be detected, the application provides an electro-static pressure driving device for a sea valve, the driving device further comprises a housing 28, the housing 28 is fixedly arranged on the swing oil cylinder 15, the oil tank 18 and the oil pump 20 are both fixedly arranged in the housing 28, a cover is arranged at the position of the housing 28 corresponding to the oil filling port 19, so that the oil can be conveniently filled into the oil tank 18, and the motor 21 is arranged on the side surface of the housing 28.

A high-pressure sensor 29 and a filter 30 are arranged on a pipeline between an oil outlet of the oil pump 20 and the reversing valve 22, a low-pressure sensor 31 and a pressure relief exhaust valve 32 are arranged on a pipeline between the oil tank 18 and an oil inlet of the oil pump 20, and a high-pressure safety valve 33 is arranged between a pipeline between the oil outlet of the oil pump 20 and the reversing valve 22 and a pipeline between the oil tank 18 and an oil inlet of the oil pump 20; the high-pressure sensor 29, the low-pressure sensor 31, the high-pressure safety valve 33, the pressure relief exhaust valve 32 and the filter 30 are all arranged in the shell 28; a controller 34 is fixedly arranged outside the housing 28, and the high-voltage sensor 29, the low-voltage sensor 31 and the motor 21 are respectively electrically connected with the controller 34.

The pipeline between the reversing valve 22 and the swing oil cylinder 15 is provided with the pressure sensor 35 and the bypass valve 36, the bypass valve 36 is convenient for oil filling or oil draining of the pipeline between the reversing valve 22 and the swing oil cylinder 15, when an emergency occurs, the operation can be quickly carried out through the bypass valve 36, the situation that the pressure between the reversing valve 22 and the swing oil cylinder 15 is damaged due to long-time abnormality is avoided, the pressure sensor 35 and the bypass valve 36 are both arranged inside the shell 28, and the pressure sensor 35 is electrically connected with the controller 34.

When the high-pressure sensor 29 monitors that the hydraulic pressure of the pipeline is too high, the high-pressure sensor 29 sends a signal to the controller 34, and the controller 34 controls to reduce the power of the motor 21 or controls the motor 21 to stop working; the filter 30 makes the hydraulic oil in the hydraulic pipeline cleaner, and prevents impurities from blocking the reversing valve 22 and the hydraulic lock 23; when the low-pressure sensor 31 monitors that the hydraulic pressure of the pipeline is too low, the low-pressure sensor 31 sends a signal to the controller 34, and the controller 34 controls to improve the power of the motor 21 or controls the motor 21 to stop working for maintenance; the high-pressure safety valve 33 prevents the pressure in the pipeline between the oil outlet of the oil pump 20 and the reversing valve 22 from being too high, and when the pressure in the pipeline between the oil outlet of the oil pump 20 and the reversing valve 22 is too high, the hydraulic oil in the pipeline between the oil outlet of the oil pump 20 and the reversing valve 22 flows into the pipeline between the oil tank 18 and the oil inlet of the oil pump 20 through the high-pressure safety valve 33 to be decompressed; the pressure sensor 35 detects the hydraulic pressure in the pipeline between the reversing valve 22 and the swing oil cylinder 15, so that the pressure in the swing oil cylinder 15 and the reversing valve 22 can be conveniently and timely mastered, and abnormal work of the reversing valve 22 and the swing oil cylinder 15 caused by abnormal pressure is avoided.

As shown in fig. 1, 6 and 7, the hydraulic machine comprises a housing 101 and a ram 11, the ram 11 is disposed in the housing 101, and the ram 11 comprises: the connecting rod 13 is arranged at one end of the body 111, and a coaxial blind hole 112 is formed in one end, corresponding to the connecting rod 13, of the body 111; a buffer mechanism 40 is arranged in the blind hole 112, the buffer mechanism 40 includes a first sleeve 41, a second sleeve 42, a connecting piece 43 and an elastic piece 44, the first sleeve 41 penetrates into the hollow part of the elastic piece 44, one end of the first sleeve 41 far away from the connecting rod 13 protrudes outwards to form a shoulder 45, the connecting piece 43 is arranged at one end of the elastic piece 44 close to the connecting rod 13, the connecting piece 43 is connected with the connecting rod 13, the second sleeve 42 is fixedly arranged on the end surface of the connecting piece 43 close to the elastic piece 44, the second sleeve 42 is sleeved outside the first sleeve 41, the second sleeve 42 presses on the elastic piece 44, during the process that the connecting rod 13 pushes the ejector rod 11 to move, the connecting rod 13 applies a pushing force to the connecting piece 43, so that the connecting piece 43 and the second sleeve 42 push the elastic piece 44 to compress on the first sleeve 41, the elastic piece 44 is used for buffering between the connecting rod 13 and the connecting piece 43, so that the buffering effect of the ejector rod 11 is improved, and the excessive vibration of the hydraulic press is avoided.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

As shown in fig. 1, 6 and 7, in order to solve the technical problem of unstable matching between the first sleeve 41 and the second sleeve 42 in the prior art, the present application provides a hydraulic machine for a vent valve driving device, wherein the damping mechanism 40 further includes a central rod 46, the central rod 46 is fixedly connected to an end surface of the connecting member 43 close to the elastic member 44, the central rod 46 is inserted into a through hole in the middle of the first sleeve 41, and the central rod 46 slides in the through hole in the middle of the first sleeve 41, so that the movement of the connecting rod 13 is more stable, and the shaking between the first sleeve 41 and the second sleeve 42 is avoided; the end of the central rod 46 protrudes out of the first sleeve 41 and is fitted with a first pin 47, preventing the central rod 46 from disengaging from the first sleeve 41; elastic component 44 is belleville spring, belleville spring is 11 groups, every group belleville spring is 4 superpositions, belleville spring shot-blasting is handled for product fatigue life is higher, then carries out zinc-bonderizing and scribbles the inoxidizing coating, avoids belleville spring to receive the influence of sea water moisture and dress, adaptation ocean atmospheric environment that can be fine satisfies the abominable service condition of drive arrangement.

The connecting piece 43 is provided with a compression nut 48 on one side corresponding to the connecting rod 13, the compression nut 48 is arranged in the blind hole 112, the compression nut 48 limits the buffer mechanism 40, the buffer mechanism 40 is prevented from moving in the blind hole 112 in an overlarge range, the buffer mechanism 40 is stably fixed and buffers the connecting rod 13, and the overall structure of the hydraulic press is more stable.

The outer side wall of the compression nut 48 is in threaded connection with the inner side wall of the blind hole 112, so that the compression nut 48 is convenient to disassemble, the axial direction of the compression nut 48 is a polygonal hole, the polygonal hole is a 6-square hole in the embodiment, an adapter rod 49 is arranged between the connecting rod 13 and the connecting piece 43, the adapter rod 49 penetrates through the polygonal hole, the cross section of the adapter rod 49 is the same as that of the polygonal hole, two ends of the adapter rod 49 are respectively fixedly connected with the connecting rod 13 and the connecting piece 43, the adapter rod 49 enables the connecting rod 13 and the connecting piece 43 to move only along the axis of the blind hole 112, the connecting rod 13 and the connecting piece 43 are prevented from rotating, and the elastic piece 44 is prevented from being damaged by the rotation of the connecting.

As shown in fig. 1, 2 and 3, in order to solve the technical problem of damage to the elastic member 44 caused by an excessively large moving distance of the connecting rod 13 in the blind hole 112 in the prior art, the present application provides a hydraulic machine for a breather valve driving device, wherein a sliding block 50 is sleeved outside the connecting rod 13, the connecting rod 13 is hinged to the sliding block 50 through a second pin 51, a long hole 52 is formed in a side wall of the housing 101, a limit key 53 is fixedly arranged at a position, corresponding to the long hole 52, of an outer side wall of the sliding block 50 through a screw, the limit key 53 is arranged in the long hole 52, a length of the limit key 53 is smaller than a length of the long hole 52, so that the sliding block 50 and the limit key 53 can only move in the long hole 52, the elastic member 44 is prevented from being crushed by the excessively large moving length of the connecting rod 13, meanwhile, the sliding block 50 fills a gap between the connecting rod 13 and the inner wall of the blind hole 112, and the sliding, avoid the damage caused by the over-stress of the connecting rod 13.

As shown in fig. 1, two sealing rings 102 and one sealing filler 103 are sequentially arranged between the ejector rod 11 and the inner wall of the housing 101 from outside to inside along the axial direction, the sealing filler 103 is formed by weaving 6 groups of 8 × 8 reinforced flexible graphite, 504 stainless steel wires are arranged inside the reinforced flexible graphite, the sealing effect between the ejector rod 11 and the inner wall of the housing 101 is better through the arrangement of the sealing rings 102 and the sealing filler 103, and the 504 stainless steel wires are arranged inside the reinforced flexible graphite, so that the strength of the sealing filler 103 is improved, and the service life of the sealing filler 103 is longer.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.