CN216241638U

CN216241638U - A subside platform for let out detection in multiple unit valve

Info

Publication number: CN216241638U
Application number: CN202122952280.4U
Authority: CN
Inventors: 李文杰
Original assignee: Shanghai Gongbang Qiaokong Equipment Co ltd
Current assignee: Shanghai Gongbang Qiaokong Equipment Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-08
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a settling platform for detecting internal leakage of a multi-way valve, which relates to the field of detection of the multi-way valve and aims to provide equipment for detecting the internal leakage of the multi-way valve.A technical scheme is adopted that an oil outlet of an oil path of the multi-way valve is connected to a connecting pipe, a hose is connected with an oil inlet of the multi-way valve, an oil pump can inject hydraulic oil into an oil cylinder through the oil path of the multi-way valve to push a first piston to move upwards so as to compress air in an inner cylinder, the amount of the hydraulic oil injected into the oil cylinder can be obtained by detecting pressure change of the inner cylinder through a pressure sensor, after the multi-way valve is closed or switched to other oil paths, if the multi-way valve has internal leakage, the first piston can move downwards, the detection value of the pressure sensor can fall, and if the detection value is inconvenient, the sealing performance is good; this device can quantify the internal leakage, and the balancing weight adopts the heavy object of standard weight, can judge the internal leakage degree through the change speed of pressure sensor detection value, and sensitive, directly perceived.

Description

A subside platform for let out detection in multiple unit valve

Technical Field

The utility model relates to the field of multi-way valve detection, in particular to a settling platform for multi-way valve internal leakage detection.

Background

The multi-way valve is also called a multi-way reversing valve, is suitable for the industries of engineering machinery, mines, metallurgy, ships, medicines and the like, and is a load sensitive proportional reversing multi-way valve with pressure compensation.

The working principle of the multi-way valve is that a three-way pressure compensation bypass overflow valve logic element is arranged in an inlet valve block, and when the multi-way valve stops operating and all valves are in a middle position, the valves bypass the flow of a main oil way by compensation pressure. When a valve is operated, the bypass port of the valve is reduced under the action of load pressure, and the required flow is provided according to the load pressure.

The check valve is arranged on the oil way of the multi-way valve, so that the oil return falling of a hydraulic element controlled by the oil way when the whole machine stops working or the multi-way valve is in a middle position is prevented, the safety of equipment is influenced by the internal leakage of the multi-way valve, the equipment can generate misoperation of non-staff person-in-charge intention due to the leakage, unnecessary loss or potential safety hazard is caused during working, and therefore, the internal leakage detection has important significance in the processes of factory leaving and using of the multi-way valve.

SUMMERY OF THE UTILITY MODEL

In order to carry out internal leakage detection on the multi-way valve in the processes of leaving factory and using, the utility model discloses a sedimentation table for internal leakage detection of the multi-way valve, which adopts the technical scheme that the sedimentation table comprises a control box, an operation screen is arranged on the control box, a microprocessor is arranged in the control box, the microprocessor is electrically connected with the operation screen, the sedimentation table further comprises a support, an oil cylinder, an air cylinder and an oil tank, the oil tank is arranged above the support and at a high position, an oil pump is arranged in the oil tank, and an outlet of the oil pump is connected with an oil pipe which can output hydraulic oil in the oil tank; the hydraulic oil cooling device comprises an oil tank, a support, an oil cylinder, a pressure sensor, a counterweight block, an oil cylinder, a connecting piece, a first piston and a first connecting rod, wherein a pipe orifice is arranged below the oil tank, the pipe orifice penetrates through the support and then is connected with the air cylinder, an inner cylinder and a jacket are arranged in the air cylinder, the pipe orifice is communicated with the jacket, hydraulic oil in the oil tank can enter the jacket, the temperature of air in the inner cylinder can rise when air in the inner cylinder is compressed, so the hydraulic oil enters the oil tank through the jacket and can be cooled down, the inner cylinder is connected with the pressure sensor and can detect the pressure in the inner cylinder, the push rod end of the air cylinder is connected with the counterweight block, the oil cylinder is connected below the counterweight block, the oil cylinder and the air cylinder are both fixedly connected on the support through the connecting piece, the first piston and the first connecting rod are arranged in the oil cylinder, the first piston is connected with the counterweight block through the first connecting rod, the first piston and the second piston can be synchronously up and down with the counterweight block, the oil cylinder is communicated with the jacket of the air cylinder through an oil guide pipe, and hydraulic oil above a first piston in the oil cylinder can enter the oil tank 9 through the oil guide pipe and the jacket when the first piston moves upwards; an oil inlet pipe is connected below the oil cylinder, a valve and a recovery mechanism are connected to the oil inlet pipe, and the recovery mechanism can recover hydraulic oil below a first piston in the oil cylinder after detection is finished; the oil pump and the pressure sensor are electrically connected with the microprocessor.

In a preferred embodiment of the present invention, a partition is installed in the oil tank, the partition is provided with an oil passing hole, the oil pump is installed on the partition, and the oil tank is vertically separated by the partition, so that the installation of the oil pump can be prevented from blocking a lower nozzle.

As a preferred technical scheme of the utility model, the oil pipe comprises a fixed pipe and a hose, one end of the fixed pipe is connected with the outlet of the oil pump, the fixed pipe can be more stably connected with the oil pump, the sealing of the joint of the fixed pipe and the oil tank is better implemented, the other end of the fixed pipe is connected with the hose, a fourth hand valve is arranged at the outlet of the hose, the hose can be more conveniently connected with the multi-way valve, and the handle can prevent residual hydraulic oil in the pipe from leaking when the handle is detached after detection is finished.

As a preferred technical scheme of the utility model, the pipe orifice at the bottom of the oil tank and the jacket of the air cylinder are connected by flanges, so that the connection is stable, the maintenance and the replacement are convenient, and the sealing performance is good.

As a preferable technical scheme of the present invention, the cylinder includes a housing, a second piston, and a blocking ring, the inner cylinder is disposed in the housing, the jacket is formed between the housing and the inner cylinder, the second piston is slidably connected in the inner cylinder, and a lower portion of the second piston is connected to the counterweight through a second connecting rod, when the counterweight moves upward, the second piston can be pushed to move upward to compress upper air, the blocking ring is disposed in the inner cylinder, the blocking ring is disposed above the second piston, the blocking ring can block the second piston, a detection area is formed above the blocking ring, and the pressure sensor is disposed in the detection area to prevent the second piston from entering the detection area and affecting detection of the pressure sensor.

As a preferred technical scheme of the utility model, the hydraulic oil pump further comprises a counterweight groove, wherein the counterweight groove is a shell with one open side, the first connecting rod and the second connecting rod are both connected with the counterweight groove, the counterweight block is detachably connected in the counterweight groove, the counterweight block is detachably connected, a standard heavy object with constant weight is adopted, the pressure in an inner cylinder is constant when the oil pump stops conveying hydraulic oil, and when the multi-way valve internally leaks, the internal leakage degree can be judged through the change speed and the change quantity of the detection value of the pressure sensor; the balancing weight can be dismantled and connect and can regularly take off the calibration check, prevents that weight from changing and causing leakage degree erroneous judgement.

As a preferred technical scheme of the utility model, the recovery mechanism comprises a three-way pipe, a connecting pipe and a recovery barrel, three ports of the three-way pipe are respectively connected with the oil inlet pipe, the connecting pipe and the recovery pipe, the valve on the oil inlet pipe is a first hand valve, a second hand valve and a third hand valve are respectively arranged on the connecting pipe and the recovery pipe, and the recovery pipe is connected with the recovery barrel; can retrieve the leading-in recycling bin of hydraulic oil in the hydro-cylinder after the detection, make the hydro-cylinder reset.

As a preferable technical scheme of the utility model, the oil inlet pipe and the three-way pipe, the three-way pipe and the recovery pipe, the three-way pipe and the connecting pipe and the recovery barrel are connected by flanges.

The utility model has the beneficial effects that: according to the utility model, the oil outlet of one oil way of the multi-way valve is connected to the connecting pipe, the hose is connected with the oil inlet of the multi-way valve, the oil pump can inject hydraulic oil into the oil cylinder through the oil way of the multi-way valve, the hydraulic oil pushes the first piston to move upwards so as to compress the air in the inner cylinder of the air cylinder, the pressure sensor is used for detecting the pressure change of the inner cylinder so as to obtain the amount of the hydraulic oil injected into the oil cylinder, after the multi-way valve is closed or the multi-way valve is switched to other oil ways, the first piston in the oil cylinder can downwards press the hydraulic oil in the oil cylinder by the air pressure in the inner cylinder and the weight of the balancing weight, if the multi-way valve has internal leakage, the first piston can downwards move, the detection value of the pressure sensor can be reduced, and if the detection value is inconvenient, the sealing performance is good; this device can quantify the internal leakage, and the balancing weight adopts the heavy object of standard weight, can judge the internal leakage degree through the change speed of pressure sensor detection value, and sensitive, directly perceived.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings needed to be used in the detailed description or the prior art will be briefly described below; in all the drawings, the elements or parts are not necessarily drawn to actual scale.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a counterweight groove structure according to the present invention;

FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;

FIG. 4 is an enlarged view of the structure of the present invention at B;

FIG. 5 is a schematic side view of the present invention at B.

In the figure: 1. a support; 2. an oil cylinder; 3. a first piston; 4. a first link; 5. a counterweight groove; 6. a balancing weight; 7. a cylinder; 8. an oil guide pipe; 9. an oil tank; 10. a partition plate; 11. an oil pump; 12. a fixed tube; 13. a hose; 14. an inner cylinder; 15. a second piston; 16. a barrier ring; 17. a pressure sensor; 18. a first hand valve; 19. a second hand valve; 20. a third hand valve; 21. a fourth hand valve; 22. a recovery pipe; 23. and (6) recycling the barrel.

Detailed Description

The technical scheme of the utility model is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1 to 5, the utility model discloses a settling platform for internal leakage detection of a multi-way valve, which adopts the technical scheme that the settling platform comprises a control box, an operation screen is arranged on the control box, a microprocessor is arranged in the control box, the microprocessor is electrically connected with the operation screen, the settling platform also comprises a support 1, an oil cylinder 2, an air cylinder 7 and an oil tank 9, the oil tank 9 is arranged above the support 1, the oil cylinder 2 and the air cylinder 7 are fixed on the support 1 through fixing clamps, an oil pump 11 is arranged in the oil tank 9, the outlet of the oil pump 11 is connected with an oil pipe, and hydraulic oil can be injected into the multi-way valve through the oil pump 11 after the oil pipe is connected with the multi-way valve; the hydraulic oil tank is characterized in that a pipe orifice is arranged below the oil tank 9, the pipe orifice penetrates through the bracket 1 and then is connected with the air cylinder 7, the air cylinder 7 further comprises a shell, an inner cylinder 14, a second piston 15 and a blocking ring 16, the inner cylinder 14 is arranged in the shell, a jacket is formed between the shell and the inner cylinder 14, the second piston 15 is connected in the inner cylinder 14 in a sliding mode, the lower portion of the second piston 15 is connected with the counterweight block 6 through a second connecting rod, the pipe orifice is communicated with the jacket, the jacket is communicated with the oil cylinder 2 through an oil guide pipe 8, the counterweight block 6 can move to drive the second piston 15 to move, air in the inner cylinder 14 can emit heat when being compressed, the oil cylinder 2 can be communicated with the oil tank 9 through the arrangement of the jacket and the oil guide pipe 8, the hydraulic oil can also cool the inner cylinder 14 in the flowing process, and the inner cylinder 14 is connected with a pressure sensor 17 and a safety valve, the safety valve can detect the pressure in the inner cylinder 14, and the pressure is used as a measuring reference for stopping the work of the oil pump 11 and a judgment basis for judging whether the multi-way valve leaks inwards, the safety valve can prevent the inner cylinder 14 from being exploded due to overpressure, the push rod end of the air cylinder 7 is connected with the balancing weight 6, the lower part of the balancing weight 6 is connected with the oil cylinder 2, the oil cylinder 2 is internally provided with the first piston 3 and the first connecting rod 4, the first piston 3 is connected in the oil cylinder 2 in a sliding manner, the first piston 3 is connected with the balancing weight 6 through the first connecting rod 4, and the hydraulic oil entering the oil cylinder 2 can enable the first piston 3, the first connecting rod 4, the balancing weight 6, the second connecting rod and the second piston 15 to move upwards; an oil inlet pipe is connected to the lower part of the oil cylinder 2, and a valve and a recovery mechanism are connected to the oil inlet pipe; the oil pump 11 and the pressure sensor 17 are electrically connected with the microprocessor.

As a preferable technical solution of the present invention, a partition plate 10 is installed in the oil tank 9, an oil through hole is formed in the partition plate 10, the oil pump 11 is installed on the partition plate 10, during the detection process, the hydraulic oil below the partition plate 10 passes through the oil through hole to be pumped by the oil pump 11, and after the detection is finished, the hydraulic oil above the partition plate 10 passes through the oil through hole to flow downward.

As a preferred technical scheme of the present invention, the oil pipe includes a fixed pipe 12 and a hose 13, one end of the fixed pipe 12 is connected to the outlet of the oil pump 11, the other end is connected to the hose 13, and a fourth hand valve 21 is installed at the outlet of the hose 13; the hose 13 is easy to connect with the multi-way valve, and the fourth hand valve 21 can prevent oil leakage when the multi-way valve is not connected.

As a preferred technical solution of the present invention, the pipe orifice at the bottom of the oil tank 9 and the jacket of the air cylinder 7 are connected by a flange.

As a preferable technical solution of the present invention, the mobile phone further comprises a counterweight groove 5, the counterweight groove 5 is a shell with one side open, the first connecting rod 4 and the second connecting rod are both connected with the counterweight groove 5, and the counterweight 6 is inserted in the counterweight groove 5.

As a preferable technical scheme of the utility model, the recovery mechanism comprises a three-way pipe, a connecting pipe and a recovery barrel 23, three ports of the three-way pipe are respectively connected with the oil inlet pipe, the connecting pipe and the recovery pipe 22, the valve on the oil inlet pipe is a first hand valve 18, a second hand valve 19 and a third hand valve 20 are respectively arranged on the connecting pipe and the recovery pipe 22, the recovery pipe 22 is connected with the recovery barrel 23, the first hand valve 18 and the second hand valve 19 are opened, hydraulic oil passing through the multi-way valve can enter the oil cylinder 2, and the first hand valve 18 and the third hand valve 20 are opened to discharge the hydraulic oil in the oil cylinder 2 into the recovery pipe 22 to be collected in the recovery barrel 23.

As a preferable technical scheme of the utility model, the oil inlet pipe and the three-way pipe, the three-way pipe and the recovery pipe 22, the three-way pipe and the connecting pipe, and the recovery pipe 22 and the recovery barrel 23 are connected by flanges.

As a preferred technical solution of the present invention, the weight block 6 is a standard weight with a constant weight.

The working principle of the utility model is as follows: inserting a balancing weight 6 into a balancing weight groove 5, connecting an oil outlet of an oil path to be detected of a multi-way valve with a connecting pipe, connecting an outlet of a hose 13 with an oil inlet of the multi-way valve, unscrewing a first hand valve 18, a second hand valve 19 and a fourth hand valve 21, screwing a third hand valve 20, operating the multi-way valve to connect the oil path to be detected, starting an oil pump 11 on a control panel, sending hydraulic oil in an oil tank 9 into the multi-way valve through a fixed pipe 12 and the hose 13 by the oil pump 11, then entering an oil cylinder 2 through the opened oil path, jacking a first piston 3 in the oil cylinder 2 upwards, jacking the balancing weight 6 upwards by the first piston 3 through a first connecting rod 4, pushing a second piston 15 to move upwards along an inner cylinder 14 through a second connecting rod, compressing air in the inner cylinder 14, enabling a blocking ring 16, detecting the pressure in the inner cylinder 14 through a pressure sensor 17 by a microprocessor to obtain the hydraulic oil amount in the oil cylinder 2, when the air in the inner cylinder 14 is compressed, the air temperature is increased, so that in the process of moving the first piston 3 upwards, the hydraulic oil above the first piston 3 is pressed into the jacket of the cylinder 7 through the oil guide pipe 8 and enters the oil tank 9 through the jacket, so that the hydraulic oil exchanges heat with the inner cylinder 14, and the temperature of the inner cylinder 14 is reduced; the hydraulic oil entering the oil tank 9 passes through the oil hole on the partition plate 10 to supply an oil pump 11 for use; when the detection value of the pressure sensor 17 reaches a set range, the oil pump 11 is stopped, a worker switches the oil path of the multi-way valve to enable the oil injection oil path to be in a closed state, the oil pump stands for a certain time to observe the change of the detection value of the pressure sensor 17 on the operation screen, the sealing performance is good when the change is within the set deviation range, if the change exceeds the deviation range, internal leakage is shown, and the internal leakage degree can be judged according to the change speed.

After the detection is finished, the second hand valve 19 and the fourth hand valve 21 are closed, the multi-way valve is disassembled, the third hand valve 20 is opened, the oil cylinder 2 is communicated with the recovery pipe 22, the first piston 3 and the second piston move downwards under the action of the pressure in the inner cylinder 14 and the counterweight block 6, the hydraulic oil in the first piston 3 is recovered to the recovery barrel 23 through the recovery pipe 22, and the hydraulic oil in the oil tank 9 naturally flows to the upper portion of the first piston 3 in the oil cylinder 2 through the jacket and the oil guide pipe 8 under the action of gravity.

The mechanical and electrical connections involved in the present invention are conventional means employed by those skilled in the art and may be suggested by limited experimentation and are within the ordinary skill of the art.

Components not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. The utility model provides a subside platform that is used for leaking in multiple unit valve to detect, includes the control box, there is the operation screen on the control box, and inside has microprocessor, microprocessor with the operation screen electrical property links to each other its characterized in that: the oil-gas separation device is characterized by further comprising a support (1), an oil cylinder (2), an air cylinder (7) and an oil tank (9), wherein the oil tank (9) is arranged above the support (1), an oil pump (11) is arranged in the oil tank (9), and an outlet of the oil pump (11) is connected with an oil pipe; a pipe orifice is arranged below the oil tank (9), the pipe orifice penetrates through the support (1) and then is connected with the air cylinder (7), an inner cylinder (14) and a jacket are arranged in the air cylinder (7), the pipe orifice is communicated with the jacket, the inner cylinder (14) is connected with a pressure sensor (17), the push rod end of the air cylinder (7) is connected with a balancing weight (6), the lower part of the balancing weight (6) is connected with the oil cylinder (2), a first piston (3) and a first connecting rod (4) are arranged in the oil cylinder (2), the first piston (3) is in sliding connection in the oil cylinder (2), the first piston (3) is connected with the balancing weight (6) through the first connecting rod (4), and the oil cylinder (2) is communicated with the jacket of the air cylinder (7) through an oil guide pipe (8); an oil inlet pipe is connected to the lower part of the oil cylinder (2), and a valve and a recovery mechanism are connected to the oil inlet pipe; the oil pump (11) and the pressure sensor (17) are electrically connected with the microprocessor.

2. The settling station for leak in detection of the multi-way valve according to claim 1, wherein: a partition plate (10) is arranged in the oil tank (9), an oil passing hole is formed in the partition plate (10), and the oil pump (11) is arranged on the partition plate (10).

3. The settling station for leak in detection of the multi-way valve according to claim 1, wherein: the oil pipe comprises a fixed pipe (12) and a hose (13), one end of the fixed pipe (12) is connected with an outlet of the oil pump (11), the other end of the fixed pipe is connected with the hose (13), and a fourth hand valve (21) is arranged at the outlet of the hose (13).

4. The settling station for leak in detection of the multi-way valve according to claim 1, wherein: the pipe orifice at the bottom of the oil tank (9) is connected with the jacket of the air cylinder (7) through a flange.

5. The settling station for leak in detection of the multi-way valve according to claim 1, wherein: the air cylinder (7) comprises a shell, a second piston (15) and a blocking ring (16), the inner cylinder (14) is arranged in the shell, the jacket is formed between the shell and the inner cylinder (14), the second piston (15) is connected in the inner cylinder (14) in a sliding mode, the lower portion of the second piston (15) is connected with the balancing weight (6) through a second connecting rod, the blocking ring (16) is arranged inside the inner cylinder (14), the blocking ring (16) is arranged above the second piston (15), and the pressure sensor (17) is installed above the blocking ring (16).

6. The settling station for multiple-way valve internal leakage detection as recited in claim 5, wherein: still include counter weight groove (5), counter weight groove (5) are the casing that one side was opened, first connecting rod (4) with the second connecting rod all with counter weight groove (5) link to each other, can dismantle in counter weight groove (5) and connect balancing weight (6).

7. The settling station for leak in detection of the multi-way valve according to claim 1, wherein: the recycling mechanism comprises a three-way pipe, a connecting pipe and a recycling bin (23), three ports of the three-way pipe are respectively connected with the oil inlet pipe, the connecting pipe and the recycling bin (22), the valve on the oil inlet pipe is a first hand valve (18), the connecting pipe and the recycling bin (22) are respectively provided with a second hand valve (19) and a third hand valve (20), and the recycling bin (23) is connected with the recycling bin (22).

8. The settling station for multiple-way valve internal leakage detection as recited in claim 7, wherein: the oil inlet pipe and the three-way pipe, the three-way pipe and the recovery pipe (22), the three-way pipe and the connecting pipe and the recovery pipe (22) and the recovery barrel (23) are connected by flanges.

9. The settling station for leak in detection of the multi-way valve according to claim 1, wherein: the balancing weight (6) is a standard heavy object with constant weight.