Stroke testing device for mechanical force position lifting valve
By designing a mechanical force level lift valve stroke test device including a base, a lift valve to be tested, a push rod and a stroke measurement element, the problem of difficulty in accurately detecting the lift valve spool stroke in the prior art is solved, and the convenience of accurate detection of the valve spool stroke and hydraulic principle analysis is achieved.
Patent Information
- Application Number
- CN202421808339.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The prior art is difficult to accurately detect the stroke of the valve core of the poppet valve in various working states, which affects the design accuracy of engineers when analyzing the hydraulic principles.
A mechanical force level lift valve stroke testing device is designed, including a base, a lift valve to be tested, a push rod and a stroke measurement element. The push rod is coaxially arranged with the valve core of the lift valve to be tested, and the stroke measuring element is fixedly connected to the push rod. The movement of the valve core is simulated by moving the push rod, and the stroke measuring element accurately displays the stroke of the valve core.
It realizes accurate detection of the stroke of the lift valve core in various working states, which facilitates engineers to analyze the hydraulic principles and design the lifter. The device structure is simple, easy to process and has a long service life.
Smart Images
Figure CN223004261U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of testing devices, and particularly relates to a mechanical force position lift valve stroke testing device. Background Technique
[0002] At present, it is relatively difficult to detect the spool stroke of various lift valves. When engineers analyze the hydraulic principle, they can only judge how its working position works, and cannot accurately calculate the spool stroke. Therefore, there is an urgent need for a testing device that can accurately display the spool stroke in each working state. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is: to provide a mechanical force position lift valve stroke testing device, which can accurately detect the stroke of the spool of the lift valve in each working state, and is convenient for engineers to design the lifter.
[0004] To solve the above technical problem, the technical solution of the utility model is:
[0005] A mechanical force position lift valve stroke testing device includes: a base, a lift valve to be tested, a push rod and a stroke measuring element. The lift valve to be tested, the push rod and the stroke measuring element are installed on the base. The push rod is coaxially arranged with the spool of the lift valve to be tested. When the push rod moves axially under an external force, the spool of the lift valve to be tested performs corresponding contraction and elongation actions; the stroke measuring element is fixedly connected to the push rod, and the stroke measuring element moves with the push rod and displays the stroke of the push rod movement.
[0006] Further, a box body is fixedly arranged on the base, the lift valve to be tested is installed in the box body, and an oil inlet, a working oil port and an oil return port communicated with the internal flow channel of the lift valve to be tested are arranged on the surface of the box body.
[0007] Further, the box body includes a box body main body and a box body end cover fixed together, and the valve block of the lift valve to be tested is installed on the lower side of the box body end cover.
[0008] Further, the oil inlet and the working oil port are arranged on the box body end cover, the oil return port is arranged on the box body main body, and the internal flow channel of the lift valve to be tested is communicated with the internal space of the box body.
[0009] Further, a sealing gasket is arranged between the upper end surface of the box body main body and the lower end surface of the box body end cover.
[0010] Further, the lower part of the box body is fixed to the base through angle irons and bolts passing through the angle irons.
[0011] Further, a guide sleeve is provided on the side wall of one side of the box body, and the push rod passes through the through hole in the axial direction of the guide sleeve and extends into the box body.
[0012] Further, one end of the push rod away from the box body is fixedly connected with a fixing plate, and the housing of the stroke measuring element is installed on the fixing plate.
[0013] Further, the stroke measuring element is a resistance ruler, and the displacement rod of the resistance ruler abuts against the surface of the side wall of the box body provided with the guide sleeve.
[0014] Further, a fixing bracket is fixedly provided on the base, and an adjusting bolt is threadedly installed on the fixing bracket. The adjusting bolt is coaxially arranged with the push rod, and the adjusting bolt is located at the end of the push rod away from the lift valve to be measured.
[0015] After adopting the above technical solution, the beneficial effects of the present utility model are:
[0016] Since the mechanical force position lift valve stroke testing device of the present utility model includes: a base, a lift valve to be measured, a push rod and a stroke measuring element. The lift valve to be measured, the push rod and the stroke measuring element are installed on the base. The push rod is coaxially arranged with the valve core of the lift valve to be measured. When the push rod moves axially under an external force, the valve core of the lift valve to be measured performs corresponding contraction and elongation actions; the stroke measuring element is fixedly connected with the push rod, and the stroke measuring element moves with the push rod and displays the stroke of the push rod's movement. By moving the push rod, the actions of the valve core of the lift valve in various working states can be simulated. During this testing process, the stroke measuring element can accurately display the stroke of the valve core, which is convenient for engineers to analyze the hydraulic principle and design the lifter. The device of the present application has a simple structure, is easy to process, the overall structure is not easily damaged, and has a long service life. Brief Description of the Drawings
[0017] Figure 1 is a schematic structural diagram of the mechanical force position lift valve stroke testing device of the present utility model;
[0018] Figure 2 is Figure 1 a sectional view of;
[0019] Figure 3 is Figure 1 a top view of;
[0020] In the figure, 1 - base, 11 - angle iron, 2 - lift valve to be measured, 21 - valve core, 3 - box body, 31 - box body main body, 32 - oil return port, 33 - box body end cover, 34 - oil inlet, 35 - working oil port, 36 - sealing gasket, 37 - guide sleeve, 4 - push rod, 5 - stroke measuring element, 51 - fixing plate, 6 - fixing bracket, 61 - adjusting bolt. Detailed Description of the Embodiment
[0021] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.
[0022] As Figure 1 、 Figure 2 and Figure 3 collectively show, a mechanical force position lifting valve stroke testing device includes: a base 1, a lifting valve 2 to be tested, a push rod 4, and a stroke measuring element 5. The lifting valve 2 to be tested, the push rod 4, and the stroke measuring element 5 are installed on the base 1. The push rod 4 is coaxially arranged with the valve core 21 of the lifting valve 2 to be tested. When the push rod 4 moves axially under an external force, the valve core 21 of the lifting valve 2 to be tested performs corresponding contraction and elongation actions. The stroke measuring element 5 is fixedly connected to the push rod 4, and the stroke measuring element 5 moves with the push rod 4 and displays the stroke of the push rod 4.
[0023] During the test, by moving the push rod 4, the actions of the valve core 21 of the lifting valve in various working states can be simulated. During this process, the stroke measuring element 5 can accurately display the stroke of the valve core 21, which is convenient for engineers to analyze the hydraulic principle and design the lifter.
[0024] As Figure 1 and Figure 2 collectively show, a box body 3 is fixedly provided on the base 1, and the lifting valve 2 to be tested is installed inside the box body 3. The lower part of the box body 3 is fixed to the base 1 through angle irons 11 and bolts passing through the angle irons 11. An oil inlet 34, a working oil port 35, and an oil return port 32 that are communicated with the internal flow passage of the lifting valve 2 to be tested are provided on the surface of the box body 3. The oil inlet 34, the working oil port 35, and the oil return port 32 are used to connect corresponding equipment and measuring elements. During the test, hydraulic oil flows in and out through the oil inlet 34, the working oil port 35, and the oil return port 32 according to the stroke of the valve core 21, which is convenient for monitoring the flow rate of the lifting valve.
[0025] Specifically, the box body 3 includes a box body main body 31 and a box body end cover 33 that are fixed together. The valve block of the lifting valve 2 to be tested is installed on the lower side of the box body end cover 33. Among them, the oil inlet 34 and the working oil port 35 are provided on the box body end cover 33, the oil return port 32 is provided on the box body main body 31, and the internal flow passage of the lifting valve 2 to be tested is communicated with the internal space of the box body 3, that is, the oil return of the lifting valve is discharged through the inside of the box body 3 and the oil return port 32 in sequence.
[0026] Since the valve block of the lift valve 2 to be tested, its oil inlet 34 and working oil port 35 are arranged on the box end cover 33, the valve body can be installed on multiple box end covers 33 in advance and the corresponding oil inlets 34 and working oil ports 35 can be set. When different lift valves need to be tested, just directly replace the corresponding box end cover 33 with the valve body, which is convenient to use and has good versatility.
[0027] Furthermore, a sealing gasket 36 is arranged between the upper end surface of the box body main body 31 and the lower end surface of the box end cover 33. This is because the internal flow channel of the lift valve 2 to be tested is communicated with the internal space of the box body 3. After the box body main body 31 and the box end cover 33 are fastened by bolts, the sealing performance of the box body 3 is good, which can effectively avoid hydraulic oil leakage.
[0028] As Figure 1 、 Figure 2 and Figure 3 collectively shown, a guide sleeve 37 is arranged on the side wall of one side of the box body 3. The push rod 4 passes through the through hole in the axial direction of the guide sleeve 37 and extends into the box body 3. While guiding the push rod 4, the guide sleeve 37 can ensure the seal here. One end of the push rod 4 far away from the box body 3 is fixedly connected with a fixing plate 51, and the housing of the stroke measuring element 5 is installed on the fixing plate 51.
[0029] Specifically, the stroke measuring element 5 is a resistance ruler. The displacement rod of the resistance ruler abuts against the side wall surface of the box body 3 where the guide sleeve 37 is arranged. The resistance ruler has a display screen, and the stroke size can be directly seen.
[0030] Furthermore, a fixed bracket 6 is fixedly arranged on the base 1. An adjusting bolt 61 is threadedly installed on the fixed bracket 6. The adjusting bolt 61 is coaxially arranged with the push rod 4, and the adjusting bolt 61 is located at the end of the push rod 4 far away from the lift valve 2 to be tested. Specifically, the adjusting bolt 61 can move forward and backward by rotating along the axis. When the adjusting bolt 61 moves forward, a force is applied to the push rod 4, and the push rod 4 pushes the valve core 21 to contract. At this time, the spring on the valve core 21 is compressed; when the adjusting bolt 61 moves backward, the force of the adjusting bolt 61 on the push rod 4 decreases, the valve core 21 extends under the elastic force of the spring, and pushes the push rod 4 to move backward.
[0031] When the lift valve 2 to be tested is different, the stroke of the valve core 21 may also be different. Therefore, when the adjusting bolt 61 is removed, the push rod 4 can be pulled out of the guide sleeve 37 and different-length push rods 4 can be replaced to meet the needs of different lift valves.
[0032] The mechanical force position lift valve stroke test device of the present utility model installs the lift valve to be tested, the push rod and the stroke measuring element on the base. By moving the push rod, the actions of the valve core of the lift valve in various working states can be simulated. During this test process, the stroke measuring element can accurately display the stroke of the valve core, which is convenient for engineers to analyze the hydraulic principle and design the lifter. The device of the present application has a simple structure, is easy to process, the overall structure is not easily damaged, and has a long service life.
[0033] In the description of this specification, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.
[0034] In the description of this specification, unless otherwise clearly defined, words such as "arrangement", "installation", "connection", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.
[0035] Although the specific embodiments of the present utility model have been described above, those skilled in the art should understand that the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. These are only for illustration purposes. The protection scope of the present utility model is defined by the claims. Without departing from the principles and essence of the present utility model and without any creative work, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present utility model.
Claims
1. A mechanical force lift valve stroke test device, characterized in that: include: A base, a lift valve to be tested, a push rod and a stroke measuring element, wherein the lift valve to be tested, the push rod and the stroke measuring element are installed on the base, the push rod is coaxially arranged with the valve core of the lift valve to be tested, and when the push rod is axially moved by an external force, the valve core of the lift valve to be tested performs corresponding contraction and extension actions; The stroke measuring element is fixedly connected to the push rod, and the stroke measuring element moves with the push rod and displays the stroke of the push rod.
2. The mechanical force lift valve stroke test device according to claim 1, characterized in that: A box body is fixedly arranged on the base, the lift valve to be tested is installed in the box body, and the surface of the box body is provided with an oil inlet, a working oil port and an oil return port which are connected with the flow channel in the lift valve to be tested.
3. The mechanical force lift valve stroke test device according to claim 2, characterized in that: The box body comprises a box body main body and a box body end cover which are fixed as one body, and the valve block of the lifting valve to be tested is installed on the lower side of the box body end cover.
4. The mechanical force lift valve stroke test device according to claim 3 is characterized in that: The oil inlet and the working oil port are arranged on the box end cover, the oil return port is arranged on the box body, and the flow channel in the tested lifting valve is communicated with the internal space of the box.
5. The mechanical force lift valve stroke test device according to claim 4, characterized in that: A sealing gasket is arranged between the upper end surface of the box body and the lower end surface of the box end cover.
6. The mechanical force lift valve stroke test device according to claim 2, characterized in that: The lower part of the box body is fixed to the base through angle irons and bolts passing through the angle irons.
7. The mechanical force lift valve stroke test device according to claim 2, characterized in that: A guide sleeve is arranged on a side wall of one side of the box body, and the push rod passes through an axial through hole of the guide sleeve and extends into the box body.
8. The mechanical force lift valve stroke test device according to claim 7, characterized in that: One end of the push rod away from the box body is fixedly connected with a fixing plate, and the housing of the stroke measuring element is mounted on the fixing plate.
9. The mechanical force lift valve stroke test device according to claim 8, characterized in that: The stroke measuring element is a resistance ruler, and the displacement rod of the resistance ruler abuts against the side wall surface of the box body on which the guide sleeve is arranged.
10. The mechanical force lifting valve stroke testing device according to any one of claims 1 to 9, characterized in that: A fixing bracket is fixed on the base, an adjusting bolt is threadedly mounted on the fixing bracket, the adjusting bolt is coaxially arranged with the push rod, and the adjusting bolt is located at the end of the push rod away from one end of the lift valve to be tested.