A vane pump pressure measurement method and equipment based on position-adjustable rotation non-contact wireless pressure measurement

Abstract

The present invention discloses a vane pump pressure measurement method and equipment based on position-adjustable rotational non-contact wireless pressure measurement. The method comprises the following steps: S1: opening a mounting groove along a selected profile line on one side surface of one of the blades; S2: placing a slider at a selected measuring point in the mounting groove; S3: tightening the end cover and the slider; S4: attaching a micro pressure sensor to the end cover; S5: routing the wires of the micro pressure sensor along the mounting groove and a first lead groove on a side surface of one of the blades, and filling the mounting groove and the first lead groove with a filler; S6: fixing the detachable front cover of the impeller to the front ends of multiple blades to perform pressure measurement; after the vane pump is turned off, the front cover, filler, and end cover are removed in sequence, the slider is adjusted to the next measuring point, and steps S3 to S6 are repeated, thereby achieving position-adjustable wireless pressure measurement. The pressure data obtained by the present invention is sufficient and the technology is advanced.

Description

Technical Field

[0001] The present invention relates to the technical field of vane pumps, and in particular to a vane pump pressure measurement method and equipment based on position-adjustable rotation non-contact wireless pressure measurement. Background Art

[0002] As a primary energy conversion device, vane pumps boast high reliability and long lifespan, making them widely used in fields such as water conservancy, petrochemicals, and aerospace. However, issues such as reduced performance, severe pump vibration, and noise hazards caused by pressure pulsation have long been a focus of engineering practice and scientific research. Therefore, it is necessary to measure the pressure on the surface of vane pump blades. Existing technologies typically select multiple micro-pressure sensor mounting locations on the blade surface, create grooves, and then arrange the micro-pressure sensors in the corresponding grooves. This method fails to accurately capture pressure information at key points. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a vane pump pressure measurement device based on position-adjustable rotation non-contact wireless pressure measurement, which obtains sufficient pressure data and is technologically advanced.

[0004] According to the first embodiment of the present invention, a vane pump pressure measurement device based on position-adjustable rotation non-contact wireless pressure measurement includes:

[0005] An impeller, the impeller comprising a front cover, a plurality of blades, and a rear cover, the front cover being detachably fixed to the front ends of the plurality of blades, the rear cover being fixed to the rear ends of the plurality of blades, and a mounting groove being formed on one side surface of one of the plurality of blades along a profile line;

[0006] a slider slidably disposed in the mounting groove;

[0007] an end cap, wherein the end cap is threadably engaged with the slider to fix the slider at a selected measuring point in the mounting slot;

[0008] A micro pressure sensor is attached to the outer end surface of the end cover and is used to convert the pressure signal on the surface of the blade into an electrical signal;

[0009] A wireless signal transmitting device is connected to the micro pressure sensor and is used to transmit the electrical signal generated by one of the micro pressure sensors to the wireless signal receiving and processing device.

[0010] According to the embodiment of the first aspect of the present invention, the vane pump pressure measurement equipment based on position-adjustable rotating non-contact wireless pressure measurement not only realizes the measurement of the surface pressure of the rotating blade, but also realizes the adjustment of the pressure measurement position. It can obtain the pressure data of any point on the blade profile and find the special points of the blade surface pressure. It only needs to set up a miniature pressure sensor to obtain sufficient pressure data, and the equipment technology is advanced.

[0011] In some embodiments, the mounting groove includes a connected opening groove, a connecting portion and a positioning groove in sequence from the outside to the depth direction of the mounting groove; the slider includes a slider head and a connecting column connected to each other, the slider head is adaptively arranged in the positioning groove, the wall surface of the positioning groove restricts the slider head from detaching from the connecting portion from the positioning groove, the connecting column extends from the connecting portion into the opening groove, the end cover is located in the opening groove, and the end cover is threadedly connected to the connecting column and abuts against the bottom surface of the opening groove.

[0012] In some embodiments, the cross-sectional profile of the positioning groove is an arc.

[0013] In some embodiments, a plane rectangular coordinate system is established with the midpoint of the line connecting the two endpoints of the arc as the origin, and the control equation of the arc is:

[0014]

[0015] Wherein, d is the distance between the two endpoints of the arc, l is the vertical distance between the lowest point of the arc and the x-axis, a is the distance between the farthest points on both sides of the arc and the x-axis, and md is the distance between the farthest points on both sides of the arc and the y-axis, where m≥3 / 4 and l≤d.

[0016] In some embodiments, the width of the connecting portion is smaller than the width of the opening slot, and the width of the opening slot is suitable for facilitating screwing of the end cap onto the connecting column.

[0017] In some embodiments, a pump shaft is further included, the impeller is mounted on one end of the pump shaft, and the wireless signal transmitter is mounted on the other end of the pump shaft; the wireless signal transmitter is connected to the micro pressure sensor via a wire.

[0018] In some embodiments, a first lead groove connected to the mounting groove is opened on one side surface of one of the blades, a through hole is provided on the rear cover plate, a second lead groove is opened on the rear side surface of the rear cover plate, and a radial hole and an axial hole are provided on one end of the pump shaft. The wire is sequentially arranged in the mounting groove, the first lead groove, the through hole, the second lead groove, the radial hole and the axial hole.

[0019] In some embodiments, a filling piece is further included, wherein the filling piece is filled in the mounting groove, the first guide groove, the second guide groove and the radial hole on the pump shaft.

[0020] In some embodiments, the front cover is fixed to the plurality of blades by rivets or screws.

[0021] The second aspect of the present invention further proposes a vane pump pressure measurement method based on position-adjustable rotation non-contact wireless pressure measurement, which obtains sufficient pressure data and is technologically advanced.

[0022] According to a second aspect of the present invention, a method for measuring pressure of a vane pump based on position-adjustable rotation non-contact wireless pressure measurement includes the following steps:

[0023] S1: Opening a mounting groove along a selected profile line on one side surface of one of the plurality of blades of the impeller;

[0024] S2: placing the slider at the selected measuring point in the installation slot;

[0025] S3: Tighten the end cap and the slider to fix the slider at the selected measuring point in the mounting groove;

[0026] S4: attaching a micro pressure sensor to the outer end surface of the end cap;

[0027] S5: routing the wires of the micro pressure sensor along the mounting groove and the first lead groove on one side of the blade, and filling the mounting groove and the first lead groove with a filler to make the surface of one side of the blade smooth;

[0028] S6: fixing the detachable front cover of the impeller to the front ends of the plurality of blades to perform pressure measurement;

[0029] After the vane pump is turned off, the front cover is removed, the filler in the mounting groove and the first lead groove is taken out, the end cover is unscrewed, the slider is adjusted to the next measuring point position in the mounting groove, and then steps S3 to S6 are repeated to achieve position-adjustable wireless pressure measurement.

[0030] According to the second aspect of the embodiment of the present invention, the vane pump pressure measurement method based on position-adjustable rotating non-contact wireless pressure measurement not only realizes the measurement of the surface pressure of the rotating blade, but also realizes the adjustment of the pressure measurement position. It is possible to obtain pressure data at any point on the blade profile and find special points of blade surface pressure. Only one miniature pressure sensor needs to be set up to obtain sufficient pressure data, and the equipment technology is advanced.

[0031] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0033] Figure 1 1 is a schematic cross-sectional view of a vane pump pressure measurement device based on position-adjustable rotation and non-contact wireless pressure measurement according to an embodiment of the present invention;

[0034] Figure 2 Schematic diagram of an impeller of a vane pump pressure measurement device based on position-adjustable rotation and non-contact wireless pressure measurement according to an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of a vane pump pressure measurement device based on position-adjustable rotation and non-contact wireless pressure measurement according to an embodiment of the present invention, in which a mounting groove is provided on one of the vanes;

[0036] Figure 4 is a schematic cross-sectional view of one of the blades of the vane pump pressure measurement equipment based on position-adjustable rotation and non-contact wireless pressure measurement according to an embodiment of the present invention;

[0037] Figure 5 Schematic diagram of the arc shape of the mounting groove of the vane pump pressure measurement equipment based on position-adjustable rotation and non-contact wireless pressure measurement according to an embodiment of the present invention;

[0038] Figure 6 Schematic diagram of a rear cover plate of a vane pump pressure measurement device based on position-adjustable rotation and non-contact wireless pressure measurement according to an embodiment of the present invention;

[0039] Figure 7 3D schematic diagram of a pump shaft of a vane pump pressure measurement device based on position-adjustable rotation and non-contact wireless pressure measurement according to an embodiment of the present invention;

[0040] Figure 8 It is a schematic axial cross-sectional view of a pump shaft of a vane pump pressure measurement device based on position-adjustable rotation and non-contact wireless pressure measurement according to an embodiment of the present invention.

[0041] Reference numerals

[0042] Impeller 1; front cover 101; second mounting hole 1011; one of the blades 102; mounting slot 1021; opening slot 1021a; connecting portion 1021b; positioning slot 1021c; first lead slot 1022; first mounting hole 1023; rear cover 103; second lead slot 1031; slider 2; slider head 201; connecting column 202; end cover 3; micro pressure sensor 4; wireless signal transmitter 5; pump shaft 6; radial hole 601; axial hole 602; wire 7. DETAILED DESCRIPTION

[0043] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0044] The following combination Figures 1 to 8 The present invention describes a vane pump pressure measurement device based on position-adjustable rotation and non-contact wireless pressure measurement according to an embodiment of the present invention.

[0045] like Figures 1 to 8 As shown, the vane pump pressure measurement equipment based on position-adjustable rotation non-contact wireless pressure measurement according to the first embodiment of the present invention includes an impeller 1, a slider 2, an end cover 3, a micro pressure sensor 4 and a wireless signal transmitter 5.

[0046] Specifically, the impeller 1 includes a front cover plate 101, multiple blades and a rear cover plate 103. The front cover plate 101 is detachably fixed to the front end of the multiple blades, and the rear cover plate 103 is fixed to the rear end of the multiple blades. A mounting groove 1021 is provided along the contour line on one side surface of one of the multiple blades 102. It can be understood that since the multiple blades of the impeller 1 are subjected to similar surface pressures during rotation, a mounting groove 1021 is provided along the contour line on one side surface of one of the blades 102 to facilitate measurement of the surface pressure of one of the blades 102 at any measuring point along the contour line.

[0047] The slider 2 is slidably disposed in the mounting groove 1021, that is, the slider 2 is disposed in the mounting groove 1021. When the slider 2 is not fixed, the slider 2 can slide unimpeded in the mounting groove 1021 to adjust the position of the pressure measuring point, so that different positions in the mounting groove 1021 can be arbitrarily selected as the measuring point position.

[0048] The end cap 3 is threadedly engaged with the slider 2 to fix the slider 2 at the selected measuring point position in the installation groove 1021; specifically, an internal thread is set on the end cap 3, and an external thread is set on the slider 2. The end cap 3 is threadedly engaged with the slider 2 to fix the slider 2 in the chord direction.

[0049] The micro pressure sensor 4 is attached to the outer end surface of the end cover 3 and is used to convert the pressure signal on the surface of one of the blades 102 into an electrical signal; that is, the electrical signal generated by the surface pressure at the selected measuring point can be measured by the micro pressure sensor 4.

[0050] The wireless signal transmitting device 5 is connected to the micro pressure sensor 4 and is used to transmit the electrical signal generated by the micro pressure sensor 4 to the wireless signal receiving and processing device. The surface pressure data at the selected measuring point can be obtained through processing by the processing device.

[0051] When it is necessary to measure the next measuring point position along the profile of one of the blades 102, turn off the vane pump, remove the front cover 101, unscrew the end cover 3, adjust the slider 2 to the next measuring point position in the mounting groove 1021, fix the slider 2 with the end cover 3, paste the micro pressure sensor 4 on the outer end surface of the end cover 3, fix the front cover 101 on the front end of multiple blades, and then start measuring the surface pressure data at the measuring point position.

[0052] According to the embodiment of the first aspect of the present invention, the vane pump pressure measurement equipment based on position-adjustable rotating non-contact wireless pressure measurement can measure the surface pressure of the rotating blade while also adjusting the pressure measurement position. It can obtain pressure data at any point on the blade profile and find special points of blade surface pressure. It only needs to set up a miniature pressure sensor 4 to obtain sufficient pressure data, and the equipment technology is advanced.

[0053] In some embodiments, as Figure 4 As shown, the mounting groove 1021 includes, from the outside to the depth direction of the mounting groove 1021, a connected opening groove 1021a, a connecting portion 1021b and a positioning groove 1021c; the slider 2 includes a slider head 201 and a connecting column 202 connected to each other, the slider head 201 is adaptively arranged in the positioning groove 1021c, and the wall surface of the positioning groove 1021c restricts the slider head 201 from detaching from the connecting portion 1021b to the positioning groove 1021c, and the connecting column 202 is separated from the connecting portion 1021b. The end cap 3 extends into the open groove 1021a, and is located in the open groove 1021a. The end cap 3 is threadedly connected to the connecting column 202 and abuts against the bottom surface of the open groove 1021a. In this way, the slider 2 can be reliably fixed in the mounting groove 1021. The slider 2 can be fixed by simply screwing the end cap 3. The fixing operation is simple. Similarly, by screwing the end cap 3 in the opposite direction, the slider 2 can be loosened so that the slider 2 can be moved to other measuring point positions, thereby achieving measurement point position adjustment. It should be noted that the outer end surface of the end cap 3 does not exceed the side surface of one of the blades 102, and can be flush with or slightly lower than the side surface of one of the blades 102.

[0054] In some embodiments, as Figure 4 and Figure 5 As shown, the cross-sectional profile of the positioning groove 1021c is an arc. In other words, the wall surface of the positioning groove 1021c is an arc surface, which is conducive to the smooth sliding of the slider 2 in the installation groove 1021 and can better prevent the slider 2 from leaving the installation groove 1021.

[0055] In some embodiments, as Figure 5 As shown in the figure, a plane rectangular coordinate system is established with the midpoint of the line connecting the two end points of the arc as the origin. The control equation of the arc is:

[0056]

[0057] Where d is the distance between the two endpoints of the arc, l is the perpendicular distance between the lowest point of the arc and the x-axis, a is the distance between the farthest point on either side of the arc and the x-axis, and md is the distance between the farthest point on either side of the arc and the y-axis, where m ≥ 3 / 4 and l ≤ d. Thus, positioning groove 1021c facilitates smooth sliding of slider 2 within mounting groove 1021 and effectively prevents slider 2 from disengaging from connecting portion 1021b and opening groove 1021a.

[0058] In some embodiments, the width of the connecting portion 1021b is smaller than the width of the opening slot 1021a, and the width of the opening slot 1021a is suitable for facilitating the screwing of the end cap 3 onto the connecting post 202. Thus, under the positioning and limiting effect of the positioning slot 1021c on the slider head 201, the end cap 3 can be conveniently screwed onto the connecting post 202 of the slider 2 and abut against the bottom surface of the opening slot 1021a.

[0059] In some embodiments, as Figure 1 、 Figure 7 and Figure 8 As shown, it also includes a pump shaft 6, the impeller 1 is installed on one end of the pump shaft 6, and the wireless signal transmitting device 5 is installed on the other end of the pump shaft 6; the wireless signal transmitting device 5 is connected to the micro pressure sensor 4 through a wire 7, and the installation position of the wireless signal transmitting device 5 is reasonably arranged.

[0060] In some embodiments, as Figure 1 、 Figure 3 、 Figures 6 to 8 As shown, a first wire guide groove 1022 connected to the mounting groove 1021 is formed on one side of one blade 102, a second wire guide groove 1031 is formed on the rear side of the rear cover 103, and a radial hole 601 and an axial hole 602 are formed on one end of the pump shaft 6. The wires are sequentially arranged in the mounting groove 1021, the first wire guide groove 1022, the second wire guide groove 1031, the radial hole 601, and the axial hole 602. In this way, the wires 7 are not exposed.

[0061] In some embodiments, a filler (not shown) is also included. This filler is placed in the mounting slot 1021 and the first wire guide slot 1022 of one of the blades 102, creating a smooth and flat surface on one side of the blade 102, facilitating accurate experimental results and securing the slider 2 and wire 7. The filler can be easily removed when the measurement point along the profile of one of the blades 102 needs to be adjusted. The filler also fills the second wire guide slot 1031 and the radial hole 601 on the pump shaft 6, creating a smooth and flat surface and securing the wire 7. The filler may be made of rubber.

[0062] In some embodiments, as Figure 1 and Figure 2 As shown, the front cover 101 is fixed to the multiple blades by rivets or screws. For example, the front end surfaces of the multiple blades are provided with first mounting holes 1023. Correspondingly, the front cover 101 is provided with second mounting holes 1011 corresponding to the first mounting holes 1023. Rivets or screws are installed in the corresponding second mounting holes 1011 and first mounting holes 1023 to achieve detachable fixing of the front cover 101 and the multiple blades.

[0063] The second aspect of the present invention further proposes a vane pump pressure measurement method based on position-adjustable rotation non-contact wireless pressure measurement.

[0064] like Figures 1 to 8 As shown, according to the second embodiment of the present invention, the vane pump pressure measurement method based on position-adjustable rotation non-contact wireless pressure measurement includes the following steps:

[0065] S1: A mounting groove 1021 is opened along a selected profile line on a side surface of one of the multiple blades 102 of the impeller 1; that is, a profile line is selected on a side surface of one of the multiple blades 102 of the impeller 1, and then the mounting groove 1021 is opened along the profile line.

[0066] S2: The slider 2 is placed at the selected measuring point in the mounting groove 1021. That is, the slider 2 is placed in the mounting groove 1021. When the slider 2 is not fixed, the slider 2 can slide freely in the mounting groove 1021 to adjust the pressure measuring point position. In this way, different positions in the mounting groove 1021 can be arbitrarily selected as measuring points.

[0067] S3: Tighten the end cap 3 and the slider 2 to fix the slider 2 at the selected measuring point position in the mounting groove 1021; specifically, an internal thread is provided on the end cap 3, and an external thread is provided on the slider 2. The end cap 3 and the slider 2 are threadedly matched to fix the slider 2 in the chord direction.

[0068] S4: A micro pressure sensor 4 is pasted on the outer end surface of the end cover 3 to convert the received pressure signal into an electrical signal. That is, the electrical signal generated by the surface pressure at the selected measuring point can be measured by the micro pressure sensor 4.

[0069] S5: After routing the wires of the micro pressure sensor 4 along the mounting groove 1021 and the first lead groove 1022 on one side surface of one of the blades 102, fill the mounting groove 1021 and the first lead groove 1022 with a filling piece such as a rubber product, so that the surface of one side of the blade is smooth and flat, which is conducive to ensuring the accuracy of the experimental results. At the same time, the filling piece also plays a certain fixing role on the slider 2 and the wire 7.

[0070] S6: Fixing the detachable front cover plate 101 of the impeller 1 to the front ends of the plurality of blades, for example, by screws or rivets, and performing pressure measurement;

[0071] After the vane pump is turned off, the front cover 101 is removed, the filling pieces in the mounting groove 1021 and the first lead groove 1022 are taken out, the end cover 3 is unscrewed, the slider 2 is adjusted to the next measuring point position in the mounting groove 1021, and then steps S3 to S6 are repeated to achieve position-adjustable wireless pressure measurement.

[0072] According to the second aspect of the embodiment of the present invention, the vane pump pressure measurement method based on position-adjustable rotating non-contact wireless pressure measurement realizes the measurement of the surface pressure of the rotating blade while also realizing the adjustment of the pressure measurement position. It is possible to obtain pressure data at any point on the blade profile and to find special points of pressure on the blade surface. It only needs to set up a miniature pressure sensor 4 to obtain sufficient pressure data, thereby obtaining the required pressure data and having advanced technology.

[0073] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" indicate that the specific features, structures, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0074] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A vane pump pressure measurement device based on position-adjustable rotation non-contact wireless pressure measurement, characterized in that: include: An impeller, the impeller comprising a front cover, a plurality of blades, and a rear cover, the front cover being detachably fixed to the front ends of the plurality of blades, the rear cover being fixed to the rear ends of the plurality of blades, and a mounting groove being formed on one side surface of one of the plurality of blades along a profile line; a slider slidably disposed in the mounting groove; an end cap, wherein the end cap is threadably engaged with the slider to fix the slider at a selected measuring point in the mounting slot; A micro pressure sensor is attached to the outer end surface of the end cover and is used to convert a pressure signal on the surface of one of the blades into an electrical signal; A wireless signal transmitting device is connected to the micro pressure sensor and is used to transmit the electrical signal generated by the micro pressure sensor to a wireless signal receiving and processing device.

2. The vane pump pressure measurement equipment based on position-adjustable rotation non-contact wireless pressure measurement according to claim 1 is characterized in that: The mounting groove includes a connected opening groove, a connecting portion and a positioning groove in sequence from the outside to the depth direction of the mounting groove; the slider includes a slider head and a connecting column connected to each other, the slider head is adaptively arranged in the positioning groove, the wall surface of the positioning groove restricts the slider head from detaching from the connecting portion from the positioning groove, the connecting column extends from the connecting portion into the opening groove, the end cover is located in the opening groove, and the end cover is threadedly connected to the connecting column and abuts against the bottom surface of the opening groove.

3. The vane pump pressure measurement equipment based on position-adjustable rotation non-contact wireless pressure measurement according to claim 2 is characterized in that: The cross-sectional profile of the positioning groove is an arc.

4. The vane pump pressure measurement equipment based on position-adjustable rotation non-contact wireless pressure measurement according to claim 3 is characterized in that: A plane rectangular coordinate system is established with the midpoint of the line connecting the two end points of the arc as the origin. The control equation of the arc is: Wherein, d is the distance between the two endpoints of the arc, l is the vertical distance between the lowest point of the arc and the x-axis, a is the distance between the farthest points on both sides of the arc and the x-axis, and md is the distance between the farthest points on both sides of the arc and the y-axis, where m≥3 / 4 and l≤d.

5. The vane pump pressure measurement equipment based on position-adjustable rotation non-contact wireless pressure measurement according to any one of claims 2 to 4, characterized in that: The width of the connecting portion is smaller than the width of the opening slot, and the width of the opening slot is suitable for facilitating the end cover to be screwed onto the connecting column.

6. The vane pump pressure measurement equipment based on position-adjustable rotation non-contact wireless pressure measurement according to any one of claims 1 to 4, characterized in that: It also includes a pump shaft, the impeller is installed on one end of the pump shaft, and the wireless signal transmitting device is installed on the other end of the pump shaft; the wireless signal transmitting device is connected to the micro pressure sensor through a wire.

7. The vane pump pressure measurement equipment based on position-adjustable rotation non-contact wireless pressure measurement according to claim 6, characterized in that: A first lead groove connected to the mounting groove is formed on one side surface of one of the blades, a through hole is provided on the rear cover plate, a second lead groove is formed on the rear side surface of the rear cover plate, a radial hole and an axial hole are provided on one end of the pump shaft, and the wire is sequentially arranged in the mounting groove, the first lead groove, the through hole, the second lead groove, the radial hole and the axial hole.

8. The vane pump pressure measurement equipment based on position-adjustable rotation non-contact wireless pressure measurement according to claim 7 is characterized in that: The pump further includes a filling piece, which is filled in the mounting groove, the first guide groove, the second guide groove and the radial hole on the pump shaft.

9. The vane pump pressure measurement equipment based on position-adjustable rotation non-contact wireless pressure measurement according to any one of claims 1 to 4, characterized in that: The front cover is fixed to the plurality of blades by rivets or screws.

10. A vane pump pressure measurement method based on position-adjustable rotation non-contact wireless pressure measurement, characterized in that: The steps include: S1: Opening a mounting groove along a selected profile line on one side surface of one of the plurality of blades of the impeller; S2: placing the slider at the selected measuring point in the installation slot; S3: Tighten the end cap and the slider to fix the slider at the selected measuring point in the mounting groove; S4: attaching a micro pressure sensor to the outer end surface of the end cap; S5: routing the wires of the micro pressure sensor along the mounting groove and the first lead groove on one side of the blade, and filling the mounting groove and the first lead groove with a filler to make the surface of one side of the blade smooth; S6: fixing the detachable front cover of the impeller to the front ends of the plurality of blades to perform pressure measurement; After the vane pump is turned off, the front cover is removed, the filler in the mounting groove and the first lead groove is taken out, the end cover is unscrewed, the slider is adjusted to the next measuring point position in the mounting groove, and then steps S3 to S6 are repeated to achieve position-adjustable wireless pressure measurement.

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