CN219549743U

CN219549743U - Novel valve hydraulic driving device

Info

Publication number: CN219549743U
Application number: CN202320695432.3U
Authority: CN
Inventors: 王晓峰
Original assignee: SHITE VALVE CO Ltd
Current assignee: SHITE VALVE CO Ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-08-18
Anticipated expiration: 2033-04-03

Abstract

The utility model discloses a novel valve hydraulic driving device, which comprises a gear box body, wherein four ports are formed at two ends of the gear box body, a piston cylinder barrel is arranged in each port, a rack type piston is further arranged in the gear box body, and the rack type piston is matched with the piston cylinder barrel; a cylinder cover is arranged at four ports of the gear box body, and the cylinder cover and the four ports are blocked to form four hydraulic cylinders; an oil hole is reserved on the cylinder cover, and a hydraulic oil pipe joint is arranged at the oil hole; the utility model can effectively realize the opening and closing actions of the valve, can change the four-cylinder drive into the double-cylinder drive or the three-cylinder drive by changing the oil pipe connection form of the existing driving device according to the oil pressure of the on-site hydraulic station, effectively avoid the large output moment caused by the excessively high oil pressure of the on-site hydraulic station, damage the valve rod and other parts of the valve, and also avoid the phenomenon of insufficient output moment caused by the excessively low oil pressure, thereby greatly improving the use safety coefficient.

Description

Novel valve hydraulic driving device

Technical Field

The utility model belongs to the technical field of valve hydraulic driving, and particularly relates to a novel valve hydraulic driving device.

Background

The valve is a pipeline accessory for opening and closing a pipeline, controlling the flow direction, adjusting and controlling the parameters of the conveying medium. According to the functions, the valve can be divided into a shutoff valve, a check valve, a regulating valve and the like, and the valve has wide application in pipeline systems of gas, flue gas, hot air and the like in the metallurgical industry.

The existing hydraulic driving device has the defects of large volume, small output torque and low safety coefficient, and the hydraulic cylinder or the gear-rack transmission ratio is increased to meet the torque requirement, so that the phenomenon that the field installation space is limited or the rotation time of a valve cannot be met occurs.

Disclosure of Invention

The utility model aims to provide a novel valve hydraulic driving device, which solves the problems of small output moment and poor safety coefficient of the existing hydraulic driving device in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the novel hydraulic valve driving device comprises a gear box body, wherein four ports are formed in two ends of the gear box body, a piston cylinder barrel is arranged in each port, and a rack type piston is further arranged in the gear box body and matched with the piston cylinder barrel; a cylinder cover is arranged at four ports of the gear box body, and the cylinder cover and the four ports are blocked to form four hydraulic cylinders; an oil hole is reserved on the cylinder cover, and a hydraulic oil pipe joint is arranged at the oil hole; the gear box is characterized in that a gear is arranged at the center hole of the gear box body, the gear is meshed with the rack type piston, bearings are arranged on shaft shoulders on two sides of the gear, a pointer seat is connected to the end face of the gear, a pointer is arranged in the middle of the pointer seat, an inductor is arranged at the top of the pointer seat, a protective cover body is arranged on the gear box body, a proximity switch is arranged on the inner side of the protective cover body, and a protective cover plate is further arranged on the protective cover body.

Preferably, a cylinder cover sealing ring is arranged at the inner side surface of the cylinder cover, and a connecting screw is connected between the cylinder cover and the gear box body.

Preferably, the front surface of the gear box body is also provided with a gear box cover, and the gear box cover is also provided with a rotation angle indicator.

Preferably, every two ports on the same straight line on the gear box body are mutually communicated, and the upper port and the lower port which are communicated are in straight line parallel; the outer wall of the piston cylinder is provided with a sealing groove, and the outer wall of the piston cylinder is in clearance fit with an inner hole of the gear box body; the center hole on the gear box body coincides with the center line of the gear.

Preferably, the hydraulic oil pipe joints at the hydraulic cylinders are connected in a staggered mode.

Preferably, the automatic control device further comprises an electromagnetic valve control unit arranged on the gear box body, wherein an oil port on the electromagnetic valve control unit is connected with a reserved oil hole at the upper end of the gear box body; an energy accumulator is arranged at the bottom of the gear box body and is connected with a hydraulic system.

Preferably, piston combined sealing elements are mounted on the circumferences of two ends of the rack type piston, and the piston combined sealing elements comprise sealing ring bodies.

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

the utility model can effectively realize the opening and closing actions of the valve, can change the four-cylinder drive into the double-cylinder drive or the three-cylinder drive by changing the oil pipe connection form of the existing driving device according to the oil pressure of the on-site hydraulic station, effectively avoid the large output moment caused by the excessively high oil pressure of the on-site hydraulic station, damage the valve rod and other parts of the valve, and also avoid the phenomenon of insufficient output moment caused by the excessively low oil pressure, thereby greatly improving the use safety coefficient.

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

fig. 2 is a side cross-sectional view of the present utility model.

In the figure: 1. a gear housing; 2. a piston cylinder; 3. a solenoid valve control unit; 4. a gear; 5. a rack type piston; 6. a piston assembly seal; 7. a cylinder cover sealing ring; 8. a cylinder cover; 9. a connecting screw; 10. a hydraulic oil pipe joint; 11. a bearing; 12. a gear box cover; 13. a finger holder; 14. a protective cover body; 15. a protective cover plate; 16. a proximity switch; 17. an inductor; 18. a pointer; 19. a rotation angle indication board; 20. an accumulator.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, the present utility model provides a technical solution: the novel hydraulic valve driving device comprises a gear box body 1, wherein four ports are formed in two ends of the gear box body 1, a piston cylinder 2 is arranged in each port, a rack type piston 5 is further arranged in the gear box body 1, and the rack type piston 5 is matched with the piston cylinder 2; a cylinder cover 8 is arranged at four ports of the gear box body 1, and the cylinder cover and the four ports are plugged to form four hydraulic cylinders; an oil hole is reserved on the cylinder cover 8, and a hydraulic oil pipe joint 10 is arranged at the oil hole; the gear 4 is arranged at the center hole of the gear box body, the gear 4 is meshed with the rack-type piston 5, hydraulic oil is connected through a hydraulic oil pipe joint 10, then the rack-type piston 5 is pushed by the hydraulic oil, the gear 4 is driven in a meshed mode to realize torque output, so that the opening and closing of a valve are realized, bearings 11 are arranged on shaft shoulders on two sides of the gear 4, a pointer seat 13 is connected to the end face of the gear 4, a pointer 18 is arranged in the middle of the pointer seat 13, an inductor 17 is arranged at the top of the pointer seat 13, a protective cover body 14 is arranged on the gear box body 1, a proximity switch 16 is arranged at the inner side of the protective cover body 14, the gear 4 rotates to drive the pointer seat 13 to rotate, the pointer seat 13 rotates to drive the inductor 17 to rotate, after the distance between the inductor 17 and the proximity switch 16 is from far to the nearest point, the position of the inductor 17 can be sensed by the proximity switch 16, at this moment, the proximity switch 16 can feed back information to the driving device switch according to the position of the inductor 17, at this moment, the driving device switch receives a position signal, and therefore circuit switching is achieved, in practical application, the proximity switch 16 can be changed into a travel switch according to practical use requirements of a user, the proximity switch 16 is in non-contact triggering, the travel switch is in direct physical contact triggering signals, the installation position is determined, the proximity switch is directly replaced, diversified signal feedback is achieved, the travel switch is also called a limit switch, a specific operation principle is that the travel switch is installed at a preset position, when the inductor 17 impacts contacts on the travel switch, the travel limit switch directly achieves circuit switching, and the protective cover plate 15 is further installed on the protective cover body 14.

In this embodiment, preferably, a cylinder cover sealing ring 7 is installed at the inner side surface of the cylinder cover 8, and a connecting screw 9 is connected between the cylinder cover 8 and the gear case 1.

In this embodiment, the front surface of the gear case body 1 is preferably further provided with a gear case cover 12, and the gear case cover 12 is preferably further provided with a rotation angle indicator 19.

In the embodiment, preferably, every two ports on the same straight line on the gear case body 1 are mutually communicated, and the upper and lower communicated ports are in straight line parallel, so that a double-piston driving mode of the oil cylinder is realized, the oil cylinder and the gear case body 1 are combined into a whole, and original externally connected parts are omitted, so that the advantages of small volume and high energy efficiency are realized, and the problem of field space shortage is effectively relieved; the outer wall of the piston cylinder barrel 2 is provided with a sealing groove, a sealing ring is firstly installed and then is filled into the gear box body 1, and the outer wall of the piston cylinder barrel 2 is in clearance fit with an inner hole of the gear box body 1; the central hole in the gear housing 1 coincides with the centre line of the gear wheel 4.

In this embodiment, the hydraulic oil pipe joints 10 at the hydraulic cylinders are preferably connected in a staggered manner, namely A, D connection and B, C connection, and torque output is realized by pushing the rack type piston through hydraulic oil.

In this embodiment, preferably, the hydraulic control device further comprises a solenoid valve control unit 3 installed on the gear case 1, the solenoid valve control unit 3 is formed by directly connecting a solenoid valve with a stacked one-way valve and a double one-way throttle valve after being sequentially stacked with a control valve block, and is integrated on a hydraulic device, the operation is more convenient, an oil port on the solenoid valve control unit 3 is connected with a hydraulic oil pipe joint 10, in use, flow control is realized by the solenoid valve control unit 3 according to the oil pressure of an external hydraulic station, and the flow control is injected into the hydraulic oil pipe joint 10 through the oil port of the solenoid valve control unit 3, wherein the solenoid valve control unit 3 is provided with four interfaces of ABCD and is connected with the hydraulic oil pipe joint 10 according to A, D described above, and the connection with the hydraulic oil pipe joint 10 is completed in B, C mode; the accumulator 20 is installed to the bottom of gear box 1, and the hydraulic oil in the gear box 1 flows into the inside of accumulator 20 once more after the transmission of solenoid valve control unit 3 and hydraulic oil coupling 10 to form hydraulic pressure, and when accumulator 20 and hydraulic system are connected, accumulator 20 can be with hydraulic power transmission to hydraulic system on to realize power take off, in practical application, also can install accumulator 20 on the hydraulic station or pipeline other positions, realize the installation form diversified.

In this embodiment, preferably, the piston assembly sealing member 6 is mounted on the circumference of both ends of the rack-type piston 5, and the piston assembly sealing member 6 includes a sealing ring body.

The working principle of the utility model is as follows: when the electromagnetic valve control unit 3 is powered on, one end of the upper communicated port is in oil feeding with the other end of the lower communicated port, namely the oil feeding of the A/D port, the other end of the upper communicated port is in oil feeding with one end of the lower communicated port, namely the oil feeding of the B/C port, and the driving device rotates clockwise; when the electromagnetic valve 2DT is powered on, the other end of the upper communicated port and one end of the lower communicated port are used for oil feeding, namely the device B/C port is used for oil feeding, one end of the upper communicated port and the other end of the lower communicated port are used for oil discharging, namely the A/D port is used for oil discharging, and the driving device rotates anticlockwise.

Although embodiments of the present utility model have been shown and described in detail with reference to the foregoing detailed description, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel valve drive arrangement that surges, includes gear box casing (1), its characterized in that: the two ends of the gear box body (1) are provided with four ports, a piston cylinder barrel (2) is arranged in each port, a rack type piston (5) is further arranged in the gear box body (1), and the rack type piston (5) is matched with the piston cylinder barrel (2); a cylinder cover (8) is arranged at four ports of the gear box body (1), and the cylinder cover and the four ports are blocked to form four hydraulic cylinders; an oil hole is reserved on the cylinder cover (8), and a hydraulic oil pipe joint (10) is arranged at the oil hole; the gear box body center hole position is provided with gear (4), gear (4) and rack piston (5) meshing, place bearing (11) on the both sides shaft shoulder of gear (4), be connected with pointer seat (13) on the terminal surface of gear (4), pointer seat (13) mid-mounting has pointer (18), inductor (17) are installed at the top of pointer seat (13), and install protection casing (14) on gear box body (1), the inboard of protection casing (14) is provided with proximity switch (16), protection casing apron (15) are still installed on protection casing (14).

2. The novel valve hydraulic drive device according to claim 1, wherein: the inner side surface of the cylinder cover (8) is provided with a cylinder cover sealing ring (7), and a connecting screw (9) is connected between the cylinder cover (8) and the gear box body (1).

3. The novel valve hydraulic drive device according to claim 1, wherein: the front surface of the gear box body (1) is also provided with a gear box cover (12), and the gear box cover (12) is also provided with a rotation angle indication board (19).

4. The novel valve hydraulic drive device according to claim 1, wherein: every two ports on the same straight line on the gear box body (1) are mutually communicated, and the upper port and the lower port which are communicated are in straight line parallel; the outer wall of the piston cylinder barrel (2) is provided with a sealing groove, and the outer wall of the piston cylinder barrel (2) is in clearance fit with an inner hole of the gear box body (1); the center hole on the gear box body (1) coincides with the center line of the gear (4).

5. The novel valve hydraulic drive device according to claim 1, wherein: the hydraulic oil pipe joints (10) at the hydraulic cylinders are connected in a staggered mode.

6. The novel valve hydraulic drive device according to claim 1, wherein: the hydraulic oil control device further comprises an electromagnetic valve control unit (3) arranged on the gear box body (1), wherein an oil port on the electromagnetic valve control unit (3) is connected with a hydraulic oil pipe joint (10); an energy accumulator (20) is arranged at the bottom of the gear box body (1), and the energy accumulator (20) is connected with a hydraulic system.

7. The novel valve hydraulic drive device according to claim 1, wherein: and piston combined sealing elements (6) are arranged on the circumferences of the two ends of the rack type piston (5), and the piston combined sealing elements (6) comprise sealing ring bodies.