Valve opening measuring device

Abstract

The utility model discloses a valve opening degree measuring device, the valve opening degree measuring device comprises a mounting seat and a synchronous movable part, the synchronous movable part is movably mounted on the mounting seat along a first direction, the synchronous movable part is provided with a connecting end and a synchronous end, the connecting end is used for abutting against an oil pressure feedback plate of a valve, and the synchronous end is used for abutting against the oil pressure feedback plate of the valve. And the synchronous end is driven by the connecting end to move synchronously and is used for positioning the stop position of the movement of the oil pressure feedback plate on the mounting seat. According to the technical scheme provided by the utility model, the actual opening of the valve can be conveniently measured.

Description

Technical Field

[0001] The utility model relates to the technical field of valve opening measurement, in particular to a valve opening measurement device. Background Art

[0002] Hydraulic control valves are generally used in important equipment, and have high requirements for reliability, speed and accuracy. Hydraulic control valves need to be regularly calibrated to compare instructions, actual feedback and LVDT feedback. If there is a deviation, the servo valve parameters need to be adjusted. It is particularly important to know the specific opening of the valve, but it is currently difficult to measure directly using various measuring tools. In the past, it was necessary to use a steel ruler to measure the actual valve action value after the control system gave an instruction, which resulted in a large error. Utility Model Content

[0003] The main purpose of the utility model is to provide a valve opening measuring device, which can be used to measure the actual opening of the valve.

[0004] To achieve the above object, the utility model provides a valve opening measuring device, the valve opening measuring device comprising:

[0005] Mounting seat; and

[0006] The synchronous movable part is movably installed on the mounting seat along the first direction. The synchronous movable part has a connecting end and a synchronization end. The connecting end is used to abut against the oil pressure feedback plate of the valve. The synchronization end moves synchronously under the drive of the connecting end to locate the end position of the activity of the oil pressure feedback plate on the mounting seat.

[0007] Optionally, the mounting seat can be detachably mounted on the valve.

[0008] Optionally, the mounting seat is provided with a through hole;

[0009] The valve opening measuring device also includes a fixing bolt passing through the through hole, which is used to fix the mounting seat to the valve.

[0010] Optionally, the mounting seat is provided with an alignment groove extending along the first direction to correspond to the oil measuring hole of the valve.

[0011] Optionally, the valve opening measuring device further comprises a guide structure, wherein the guide structure comprises a guide rod and a guide hole that cooperate with each other, and the guide rod and the guide hole are respectively arranged on the mounting seat and the synchronous movable part.

[0012] Optionally, the valve opening measuring device further comprises an elastic member sleeved on the guide rod, and the elastic member is arranged between the synchronous movable portion and the mounting seat.

[0013] Optionally, the synchronous movable portion is provided with a through hole;

[0014] The valve opening measuring device also includes a locking bolt passing through the through hole and used for tightening against the mounting seat.

[0015] Optionally, a plurality of scale lines are provided on the guide rod, and the plurality of scale lines are arranged at intervals along the first direction.

[0016] Optionally, at least one of the mounting seat, the synchronous movable portion and the guide rod is made of stainless steel.

[0017] Optionally, the synchronous movable portion includes a movable body and an operating portion protruding from the movable body, and the operating portion extends along the second direction.

[0018] In the technical solution of the utility model, the synchronous movable part is movably installed on the mounting seat along a first direction, and the synchronous movable part of the valve opening measuring device can move back and forth along the first direction on the mounting seat. The synchronous movable part has a connecting end and a synchronization end, and the connecting end is used to abut against the oil pressure feedback plate of the valve. When the valve is actuated, the oil pressure feedback plate in the valve will move following the movement of the actual stroke of the valve. The activity stroke of the oil pressure feedback plate can reflect the opening of the valve, and the connecting end will move under the drive of the oil pressure feedback plate, and the synchronization end moves synchronously under the drive of the connecting end. The synchronization end can locate the end position of the activity of the oil pressure feedback plate on the mounting seat, and then the opening of the valve can be measured more intuitively, reducing the measurement error, making the measurement of the opening of the valve more convenient and accurate, and can solve the problem that the actual opening of the valve is difficult to measure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution in the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 It is a side view structural schematic diagram of a valve opening measuring device of the utility model;

[0021] Figure 2 This is a schematic diagram of the top view of a valve opening measuring device of the utility model;

[0022] Figure 3 The utility model is a structural schematic diagram of a valve opening measuring device and an oil pressure feedback plate.

[0023] Description of Figure Numbers:

[0024] 100. Valve opening measuring device; 1. Mounting seat; 11. Through hole; 2. Synchronous movable part; 21. Movable body; 211. Connecting end; 212. Synchronous end; 213. Through hole; 22. Operating part; 3. Guide rod; 31. Elastic part; 4. Oil pressure feedback plate.

[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0030] Hydraulic control valves are generally used in important equipment, and have high requirements for reliability, speed and accuracy. Hydraulic control valves need to be regularly calibrated to compare instructions, actual feedback and LVDT feedback. If there is a deviation, the servo valve parameters need to be adjusted. It is particularly important to know the specific opening of the valve, but it is currently difficult to measure directly using various measuring tools. In the past, it was necessary to use a steel ruler to measure the actual valve action value after the control system gave an instruction, which resulted in a large error.

[0031] In view of this, the utility model provides a valve opening measuring device. Figures 1 to 3 This is an embodiment of the present utility model.

[0032] See also Figure 1 The utility model provides a valve opening measuring device 100, which includes a mounting seat 1 and a synchronous movable part 2. The synchronous movable part 2 is movably mounted on the mounting seat 1 along a first direction. The synchronous movable part 2 has a connecting end 211 and a synchronous end 212. The connecting end 211 is used to abut against the oil pressure feedback plate 4 of the valve. The synchronous end 212 moves synchronously under the drive of the connecting end 211 to locate the end position of the activity of the oil pressure feedback plate 4 on the mounting seat 1.

[0033] In the technical solution of the utility model, the synchronous movable part 2 is movably installed on the mounting seat 1 along a first direction, and the synchronous movable part 2 of the valve opening measuring device 100 can move back and forth along the first direction on the mounting seat 1. The synchronous movable part 2 has a connecting end 211 and a synchronous end 212. The connecting end 211 is used to abut against the oil pressure feedback plate 4 of the valve. When the valve is actuated, the oil pressure feedback plate 4 in the valve will move following the movement of the actual valve stroke. The moving stroke of the oil pressure feedback plate 4 can reflect the opening of the valve. The connecting end 211 will move under the drive of the oil pressure feedback plate 4, and the synchronous end 212 moves synchronously under the drive of the connecting end 211. The synchronous end 212 can locate the end position of the activity of the oil pressure feedback plate 4 on the mounting seat 1, so that the opening of the valve can be measured more intuitively, the measurement error can be reduced, the measurement of the opening of the valve can be more convenient and accurate, and the problem that the actual opening of the valve is difficult to measure can be solved.

[0034] In this embodiment, the mounting seat 1 can be detachably mounted on the valve, so that it is convenient to install valve opening measuring devices 100 of different sizes or models on the same valve. The valve opening measuring device 100 can also be disassembled at any time and installed on more valves to measure the opening. The specific installation position of the valve opening measuring device 100 can be flexibly adjusted, and the valve opening measuring device 100 can be repeatedly used.

[0035] Specifically, the mounting base 1 is provided with a through hole 11, and the valve opening measuring device 100 also includes a fixing bolt passed through the through hole 11. By rotating the fixing bolt, not only can the valve opening measuring device 100 installed on the valve be easily removed, but the mounting base 1 can also be fixed to the valve, thereby fixing the valve opening measuring device 100 to the valve, thereby preventing the mounting base 1 from shaking when the oil pressure feedback plate 4 moves, and thereby enabling the synchronization end 212 to accurately locate the end position of the activity of the oil pressure feedback plate 4 on the mounting base 1, thereby improving the accuracy of the opening measurement of the valve opening measuring device 100.

[0036] In this embodiment, an alignment groove extending along the first direction is provided on the mounting seat 1 to correspond to the oil measuring hole of the valve. In this way, the connecting end 211 can be passed through the alignment groove and the oil measuring hole and accurately abut against the oil pressure feedback plate 4, ensuring that the connecting end 211 can accurately move in the first direction, so that the synchronization end 212 has a larger activity stroke that reflects the valve opening, and avoids the synchronization end 212 from being unable to locate the end position of the activity of the oil pressure feedback plate 4 when the valve opening is large, so that the activity stroke of the synchronization end 212 can more accurately reflect the valve opening, reduce measurement errors, and improve the measurement accuracy of the valve opening measuring device 100.

[0037] In this embodiment, the valve opening measuring device 100 also includes a guide structure, which includes a guide rod 3 and a guide hole that cooperate with each other, and the guide rod 3 and the guide hole are respectively arranged on the mounting seat 1 and the synchronous movable part 2. By setting the guide rod 3 and the guide hole, not only can the synchronous movable part 2 move accurately along the first direction, that is, move in the same direction as the oil pressure feedback plate 4, but the synchronous movable part 2 can also be limited to prevent the synchronous movable part 2 from shaking during the movement, so that the synchronous movable part 2 can move more stably, thereby accurately reflecting the opening size of the valve.

[0038] Furthermore, the valve opening measuring device 100 also includes an elastic member 31 sleeved on the guide rod 3, and the elastic member 31 is arranged between the synchronous movable part 2 and the mounting seat 1. After the valve is opened, the oil pressure feedback plate 4 will move to the initial position, but will not drive the connecting end 211 to move. By setting the elastic member 31, the synchronous movable part 2 can be automatically reset, that is, automatically move to the initial position, without manual reset, which is simple and convenient. It can be understood that the elastic member 31 includes a coil spring.

[0039] The synchronous movable part 2 is provided with a through hole 213, and the valve opening measuring device 100 also includes a locking bolt passing through the through hole 213 for pressing against the mounting seat 1. With such a configuration, when the valve is opened, the synchronous end 212 will locate the end position of the activity of the oil pressure feedback plate 4. At this time, the locking bolt can be pressed against the mounting seat 1 to fix the synchronous movable part 2, so that the synchronous end 212 is stabilized at the end position of the activity of the oil pressure feedback plate 4, so as to avoid the movement of the synchronous end 212 when measuring the specific activity stroke of the oil pressure feedback plate 4 and cause inaccurate measurement results. It can be understood that the distance between the starting position of the oil pressure feedback plate 4 on the valve opening measuring device 100 and the end position of its activity can be measured with a ruler to measure the opening of the valve.

[0040] The guide rod 3 is provided with a plurality of scale lines, and the plurality of scale lines are arranged at intervals along the first direction. When the valve is opened and the synchronization end 212 stops moving, the opening of the valve can be known by directly observing the plurality of scale lines on the guide rod 3, which is convenient and quick.

[0041] Furthermore, at least one of the mounting seat 1, the synchronous movable part 2 and the guide rod 3 is made of stainless steel. The use of stainless steel can reduce damage to the valve opening measuring device 100, increase the service life of the valve opening measuring device 100, increase the number of uses of the valve opening measuring device 100, and make the valve opening measuring device 100 more durable.

[0042] In this embodiment, the synchronous movable part 2 includes a movable body 21 and an operating part 22 protruding from the movable body 21, and the operating part 22 extends along the second direction. The setting of the operating part 22 facilitates manual holding of the synchronous movable part 2 and operation of the synchronous movable part 2.

[0043] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A valve opening measuring device, characterized in that: The valve opening measuring device comprises: Mounting seat; and The synchronous movable part is movably installed on the mounting seat along the first direction. The synchronous movable part has a connecting end and a synchronization end. The connecting end is used to abut against the oil pressure feedback plate of the valve. The synchronization end moves synchronously under the drive of the connecting end to locate the end position of the activity of the oil pressure feedback plate on the mounting seat.

2. The valve opening measuring device according to claim 1, characterized in that: The mounting seat is detachably mounted on the valve.

3. The valve opening measuring device according to claim 2, characterized in that: The mounting seat is provided with a through hole; The valve opening measuring device also includes a fixing bolt passing through the through hole, which is used to fix the mounting seat to the valve.

4. The valve opening measuring device according to claim 1, characterized in that: The mounting seat is provided with an alignment groove extending along a first direction for corresponding to the oil measuring hole of the valve.

5. The valve opening measuring device according to claim 1, characterized in that: The valve opening measuring device further comprises a guide structure, wherein the guide structure comprises a guide rod and a guide hole which cooperate with each other, and the guide rod and the guide hole are respectively arranged on the mounting seat and the synchronous movable part.

6. The valve opening measuring device according to claim 5, characterized in that: The valve opening measuring device further comprises an elastic member sleeved on the guide rod, and the elastic member is arranged between the synchronous movable part and the mounting seat.

7. The valve opening measuring device according to claim 5, characterized in that: The synchronous movable part is provided with a through hole; The valve opening measuring device also includes a locking bolt passing through the through hole and used for tightening against the mounting seat.

8. The valve opening measuring device according to claim 5, characterized in that: The guide rod is provided with a plurality of scale lines, and the plurality of scale lines are arranged at intervals along the first direction.

9. The valve opening measuring device according to claim 5, characterized in that: At least one of the mounting seat, the synchronous movable portion and the guide rod is made of stainless steel.

10. The valve opening measuring device according to claim 1, characterized in that: The synchronous movable part includes a movable body and an operating part protruding from the movable body, and the operating part extends along the second direction.

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