Oil pump noise detection equipment

Abstract

The utility model discloses oil pump noise detection equipment, which belongs to the field of noise detection equipment and comprises an oil tank, and the top of the oil tank is provided with a fixing structure for installing an oil pump. The oil tank further comprises an input port and an output port. The input port is used for being connected with an oil inlet formed in an oil pump, and the output port is used for being connected with an oil outlet formed in the oil pump; the multiple detection assemblies are arranged above the oil tank and located around the fixing structure; the detection assembly comprises a supporting rod and a sound receiver; the supporting rod is vertically arranged relative to the top surface of the oil tank; a sound receiver is detachably mounted at the upper end of the supporting rod; the supporting rods are located on the same straight line. The distances between the multiple supporting rods are gradually increased in the direction away from the fixing structure. The heights of the supporting rods are gradually increased in the direction away from the fixing structure. And the controller is electrically connected with the plurality of sound receivers. According to the utility model, the detection is convenient, and the detection efficiency can be improved while the data reliability is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of noise detection equipment, in particular to an oil pump noise detection equipment. Background Art

[0002] The oil pump is a light and compact pump, which is divided into three categories: in-line, distributed and single-body. The quietness of the oil pump is one of the important parameters to measure the quality of an oil pump. Therefore, the noise generated by the oil pump needs to be tested before leaving the factory to ensure that the oil pump leaving the factory is a qualified product.

[0003] At present, the way to detect oil pumps in production workshops is to connect the oil pump to the motor and power it on, and then detect the noise at different places of the oil pump by changing the position of the microphone. However, during the detection process, because no fixed measures are taken, the oil pump is also in an idling state, which will cause the vibration generated by the oil pump itself when it is working to affect the noise detection results. The idling noise value cannot reflect the noise situation of the oil pump in the actual working state, and the reliability of the data is poor.

[0004] The utility model patent with application number CN202023344476.7 discloses a detection device for an oil pump. By fixing the oil pump and injecting oil into the oil pump to simulate the working environment, the accuracy of oil pump noise detection can be improved. However, the patent requires the staff to hold a decibel meter and obtain the noise at different locations of the oil pump by changing the position multiple times, which is time-consuming and laborious; each time the staff member shifts, there will be a certain position deviation, which will also cause the measured data to be unreliable and affect the detection accuracy. Therefore, there is an urgent need to provide a noise detection device that can solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an oil pump noise detection device to solve the above shortcomings, and to solve the problems of oil pump noise detection being time-consuming and labor-intensive, and measurement data being unreliable. To achieve the above purpose, this utility model provides the following technical solutions:

[0006] An oil pump noise detection device, comprising:

[0007] An oil tank, wherein the top of the oil tank has a fixed structure for mounting an oil pump; the oil tank also includes an input port and an output port; the input port is used to connect to an oil inlet provided on the oil pump, and the output port is used to connect to an oil outlet provided on the oil pump;

[0008] A plurality of detection components are arranged above the oil tank and around the fixed structure; the detection components include a support rod and a sound receiver; the support rod is arranged vertically relative to the top surface of the oil tank; the upper end of the support rod is detachably mounted with a sound receiver; the plurality of support rods are located on the same straight line; the spacing between the plurality of support rods gradually increases in a direction away from the fixed structure; the height of the plurality of support rods gradually increases in a direction away from the fixed structure;

[0009] A controller is electrically connected to the plurality of microphones.

[0010] Furthermore, the oil tank is a rectangular oil tank; the fixed structure is located at the center of the top surface of the oil tank; and a plurality of support rods and a diagonal line of the oil tank are located on the same straight line.

[0011] Furthermore, the height differences between the plurality of support rods are in an arithmetic progression.

[0012] Furthermore, the spacings between the plurality of support rods are in an arithmetic progression.

[0013] Furthermore, it also includes an input pipe and an output pipe; the input pipe is arranged on the top surface of the oil tank, and the input pipe has a first rigid section connected to the inside of the oil tank and a first flexible section connected to the oil inlet of the oil pump; the output pipe has a second rigid section connected to the inside of the oil tank and a second flexible section connected to the oil outlet of the oil pump.

[0014] Furthermore, it also includes a protective cover; the protective cover includes a cover body and a cover seat; the cover seat is arranged under the oil tank; the cover body covers the outer surface of the oil tank, and the cover body and the cover seat are detachably matched; the cover body has a first opening for allowing the fixing structure to pass through, a second opening for allowing the input pipe to pass through, and a third opening for allowing the output pipe to pass through; the support rod is arranged on the top surface of the cover body.

[0015] Furthermore, one side of the oil tank has a square missing corner structure; the second rigid section of the output pipe is connected to the inside of the oil tank through a side wall of the missing corner structure.

[0016] Furthermore, it also includes a constant pressure tube; the lower end of the constant pressure tube is arranged on the side wall on the other side of the notched structure and is connected to the inside of the oil tank; the height of the upper end face of the constant pressure tube is higher than the top surface of the oil tank; the cover body is also provided with a fourth opening for allowing the upper end of the constant pressure tube to extend beyond the top of the cover body.

[0017] Furthermore, the detection assembly also includes a clamping member; the clamping member is arranged at the upper end of the support rod and is used to clamp or release the microphone.

[0018] Furthermore, the controller is also provided with a display screen.

[0019] The beneficial effects of the utility model are:

[0020] 1. The utility model can simultaneously collect noise signals at different distances and heights from the oil pump by setting a number of detection components whose heights and spacings are arranged in an arithmetic progression, and can quickly analyze the change state between the distance and the noise decibel value based on the results. The detection is convenient and can improve the detection efficiency while ensuring data reliability.

[0021] 2. The utility model can simulate the actual use environment of the oil pump by providing an oil tank and an input pipe and an output pipe connected to the oil pump, so that the authenticity of the collected noise data is reliable; and by providing a rigid section and a flexible section on the pipeline, it is easy to adjust the connection position between the oil pump and the pipeline.

[0022] 3. The utility model can also protect the oil tank 1 by providing a protective cover, thereby preventing the oil tank 1 from being dented due to impact by external forces, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model, with a cover body;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of another embodiment of the utility model, without a cover body;

[0025] In the attached drawings: 1- oil tank, 2- detection component, 3- input pipe, 4- output pipe, 5- protective cover, 6- constant pressure pipe, 11- fixed structure, 12- missing corner structure, 21- support rod, 22- microphone, 51- cover body, 52- cover seat. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0029] Embodiment 1:

[0030] See attached Figures 1-2. An oil pump noise detection device comprises an oil tank 1, wherein the top of the oil tank 1 has a fixed structure 11 for mounting an oil pump; the oil tank 1 also comprises an input port and an output port; the input port is used to connect with an oil inlet provided on the oil pump, and the output port is used to connect with an oil outlet provided on the oil pump; a plurality of detection components 2, wherein the plurality of detection components 2 are arranged above the oil tank 1 and around the fixed structure 11; the detection components 2 comprise a support rod 21 and a sound receiver 22; the support rod 21 is arranged vertically relative to the top surface of the oil tank 1; the upper end of the support rod 21 is detachably mounted with a sound receiver 22; a plurality of support rods 21 are located on the same straight line; the spacing between the plurality of support rods 21 gradually increases in a direction away from the fixed structure 11; the height of the plurality of support rods 21 gradually increases in a direction away from the fixed structure 11; and a controller, wherein the controller is electrically connected to the plurality of sound receivers 22. As can be seen from the above structure, the oil tank 1 is filled with oil, and the top of the oil tank 1 is loaded with an oil pump that needs to be tested for noise through a fixed structure 11. During testing, oil is supplied to the oil inlet provided on the oil pump through the input port, and then the oil flowing through the oil pump is returned to the oil tank 1 through the output port, thereby simulating the actual working state of the oil pump. The noise decibel value obtained in this state is closer to the actual working condition, ensuring the reliability of the test data. Several detection components 2 are arranged above the oil tank 1 and around the fixed structure 11. The detection components 2 are used to perform noise detection on the oil pump when the oil pump simulates the actual working state. The number can be adaptively set according to the actual test needs. The detection components 2 can be installed on the oil tank 1 or on other carriers. Noise detection can be achieved by simply placing them around the fixed structure 11 during testing. The detection assembly 2 includes a support rod 21 and a microphone 22. The support rod 21 is vertically arranged on the top surface of the oil tank 1, and the upper end of the support rod 21 is detachably mounted with the microphone 22. The microphone 22 is used to collect noise signals near the oil pump. The detachable arrangement facilitates the replacement of the model of the microphone 22 to meet the detection requirements of different oil pumps. The microphone 22 can be installed in a snap-on, clamping, and other installation methods for easy disassembly and assembly. Several support rods 21 are located on the same straight line in order to sample and detect the noise on one side of the oil pump. In the case of only detecting one side of the oil pump, as long as the sample is sufficient, the noise detection requirements can be met. The controller is electrically connected to several microphones 22 by wire or wireless means at the same time, receives the noise signals output by several microphones 22, converts them into noise decibel values, and outputs the noise decibel values ​​to the outside. The distance between the plurality of support rods 21 gradually increases in the direction away from the fixed structure 11, and at the same time, the height of the plurality of support rods 21 gradually increases in the direction away from the fixed structure 11. This arrangement enables the utility model to simultaneously collect noise signals at positions at different distances and heights from the oil pump during detection, and can quickly analyze the change state between the distance and the noise decibel value based on the results, thereby saving time and effort in detection, ensuring data reliability, and improving detection efficiency.

[0031] Embodiment 2:

[0032] See attached Figures 1-2 . On the basis of the first embodiment, the oil tank 1 is a rectangular oil tank; the fixed structure 11 is located in the center of the top surface of the oil tank 1; and a plurality of support rods 21 are located on the same straight line as the diagonal of the oil tank 1. It can be seen from the above structure that the fixed structure 11 is used to fix the oil pump in the center of the top surface of the oil tank 1. The reason why a plurality of support rods 21 are located on the same straight line as the diagonal of the oil tank 1 is that the diagonal of the rectangular oil tank 1 is longer, and more detection components 2 can be set in the direction of the diagonal of the oil tank 1 close to the fixed structure 11 to obtain more noise data to meet the detection requirements.

[0033] The height difference of several support rods 21 is in an arithmetic progression. It can be seen from the above structure that there is a height difference between each support rod 21 and its adjacent support rod 21, and the height difference between every two support rods 21 is equal. Since the height of several support rods 21 gradually increases in the direction away from the fixed structure 11, the height between several support rods 21 will increase in the direction away from the fixed structure 11 according to a fixed height difference value, and the specific height difference value can be adaptively set according to actual needs. For example, the height of the support rod 21 closest to the fixed structure 11 is set to 2cm, and the difference value of the arithmetic progression is set to 2cm, then the height of the support rod 21 of the second closest fixed structure 11 is 4cm, and the height of the support rod 21 of the third closest fixed structure 11 is 6cm, and so on.

[0034] The spacing between the plurality of support rods 21 is an arithmetic progression. It can be seen from the above structure that there is a certain spacing between each support rod 21 and its adjacent support rod 21, and the spacing values ​​between every two support rods 21 are equal. Since the spacing between the plurality of support rods 21 gradually increases in the direction away from the fixed structure 11, the spacing between the plurality of support rods 21 will increase according to a fixed spacing value in the direction away from the fixed structure 11, and the specific spacing value can be adaptively set according to actual needs. For example, the spacing between the first support rod 21 and the second support rod 21 closest to the fixed structure 11 is set to 3cm, and the difference value of the arithmetic progression is set to 1cm, then the spacing between the second support rod 21 and the third support rod 21 is 4cm, the spacing between the third support rod 21 and the fourth support rod 21 is 5cm, and so on.

[0035] It also includes an input pipe 3 and an output pipe 4; the input pipe 3 is arranged on the top surface of the oil tank 1, and the input pipe 3 has a first rigid section connected to the inside of the oil tank 1 and a first flexible section connected to the oil inlet of the oil pump; the output pipe 4 has a second rigid section connected to the inside of the oil tank 1 and a second flexible section connected to the oil outlet of the oil pump. It can be seen from the above structure that during the test, the oil pump is powered on, and the oil pump sucks the oil in the oil tank 1 through the input port of the input pipe 3, and then pours the oil back into the oil tank 1 through the output pipe 4, forming an oil circulation passage, thereby simulating the working state of the oil pump. The first flexible section is arranged on the input pipe 3, and the outlet of the first flexible section is the input port. This arrangement facilitates the adjustment of the connection position between the input pipe 3 and the oil pump. Similarly, the second flexible section is arranged on the output pipe 4, and the outlet of the second flexible section is the output port, which facilitates the adjustment of the connection position between the output pipe 4 and the oil pump.

[0036] Embodiment three:

[0037] See attached Figures 1-2 . On the basis of the second embodiment, it also includes a shield 5; the shield 5 includes a shield body 51 and a shield seat 52; the shield seat 52 is arranged below the oil tank 1; the shield body 51 covers the outer surface of the oil tank 1, and the shield body 51 and the shield seat 52 are detachable and matched; the shield body 51 has a first opening for the fixed structure 11 to pass through, a second opening for the input pipe 3 to pass through, and a third opening for the output pipe 4 to pass through; the support rod 21 is arranged on the top surface of the shield body 51. It can be seen from the above structure that the shield 5 is provided on the one hand to protect the oil tank 1, to prevent the oil tank 1 from being dented due to the impact of external force, and to extend the service life of the equipment. On the other hand, the shield 5 can also serve as the installation base of the support rod 21. The lower end of the shield body 51 is covered on the top surface of the shield seat 52, and the shield body 51 and the shield seat 52 are detachable and matched. If the shield body 51 is damaged, it can be quickly replaced. The cover body 51 has a first opening for the fixed structure 11 to pass through, a second opening for the input pipe 3 to pass through, and a third opening for the output pipe 4 to pass through. When the cover body 51 is covered on the oil tank 1, the fixed structure 11 can pass through the first opening and be exposed outside the cover body 51. At the same time, the input pipe 3 passes through the second opening and is partially or completely exposed outside the cover body 51, and the output pipe 4 passes through the third opening and is partially or completely exposed outside the cover body 51. This arrangement can facilitate the detection component 2 to detect the noise generated by the oil pump and ensure the reliability of the data. The support rod 21 is arranged on the top surface of the cover body 51. The specific installation method can be screw connection, plug-in connection, clamping, etc., and adaptive adjustment can be made according to needs.

[0038] One side of the oil tank 1 has a square missing corner structure 12; the second rigid section of the output pipe 4 is connected to the inside of the oil tank 1 through the side wall of the missing corner structure 12. From the above structure, it can be seen that the output pipe 4 is connected to the inside of the oil tank 1 through the side wall of the missing corner structure 12, which can make the noise generated by the output pipe 4 smaller and reduce the interference with the oil pump noise detection.

[0039] The detection assembly 2 further includes a clamping member; the clamping member is disposed at the upper end of the support rod 21 and is used to clamp or loosen the microphone 22. As can be seen from the above structure, the microphone 22 can be installed by clamping, and the microphone 22 can be clamped by the clamping member to fix the position, or the clamping member can be loosened to remove the microphone 22, which is convenient for disassembly and replacement. In addition, the height of the microphone 22 relative to the top surface of the fuel tank 1 can be further adjusted by adjusting the distance between the clamping member and the top end of the support rod 21.

[0040] It also includes a constant pressure tube 6; the constant pressure tube 6 is arranged on the top surface or side wall of the oil tank 1; the lower end of the constant pressure tube 6 is connected to the inside of the oil tank 1; the height of the upper end surface of the constant pressure tube 6 is higher than the top surface of the oil tank 1. As can be seen from the above structure, since the oil has the characteristics of thermal expansion and contraction, the constant pressure tube 6 connecting the inside of the oil tank 1 with the outside is designed to avoid the problem of expansion or depression of the oil tank 1, so that the oil tank 1 can be used normally under different ambient temperatures. The height of the upper end surface of the constant pressure tube 6 is higher than the top surface of the oil tank 1 to prevent the oil inside the oil tank 1 from overflowing.

[0041] The controller is also provided with a display screen. As can be seen from the above structure, the display screen can display the data in the form of noise decibel values ​​after the controller receives and processes the noise signal of the microphone 22, so that the staff can record it conveniently.

[0042] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An oil pump noise detection device, characterized in that: include: An oil tank (1), wherein the top of the oil tank (1) is provided with a fixing structure (11) for mounting an oil pump; the oil tank (1) further comprises an input port and an output port; the input port is used to be connected to an oil inlet provided on the oil pump, and the output port is used to be connected to an oil outlet provided on the oil pump; A plurality of detection assemblies (2), wherein the plurality of detection assemblies (2) are arranged above the oil tank (1) and around the fixed structure (11); the detection assemblies (2) comprise a support rod (21) and a sound receiver (22); the support rod (21) is arranged vertically relative to the top surface of the oil tank (1); the sound receiver (22) is detachably mounted on the upper end of the support rod (21); the plurality of support rods (21) are located on the same straight line; the spacing between the plurality of support rods (21) gradually increases in a direction away from the fixed structure (11); the height of the plurality of support rods (21) gradually increases in a direction away from the fixed structure (11); A controller is electrically connected to a plurality of receivers (22).

2. The oil pump noise detection device according to claim 1, characterized in that: The oil tank (1) is a rectangular oil tank; the fixed structure (11) is located at the center of the top surface of the oil tank (1); and a plurality of support rods (21) and a diagonal line of the oil tank (1) are located on the same straight line.

3. The oil pump noise detection device according to claim 2, characterized in that: The height differences between the plurality of support rods (21) are in an arithmetic progression.

4. The oil pump noise detection device according to claim 3, characterized in that: The spacings between the plurality of support rods (21) are in an arithmetic progression.

5. The oil pump noise detection device according to claim 2, characterized in that: It also comprises an input pipe (3) and an output pipe (4); the input pipe (3) is arranged on the top surface of the oil tank (1), and the input pipe (3) has a first rigid section connected to the inside of the oil tank (1) and a first flexible section connected to the oil inlet of the oil pump; the output pipe (4) has a second rigid section connected to the inside of the oil tank (1) and a second flexible section connected to the oil outlet of the oil pump.

6. The oil pump noise detection device according to claim 5, characterized in that: The invention also comprises a protective cover (5); the protective cover (5) comprises a cover body (51) and a cover seat (52); the cover seat (52) is arranged below the oil tank (1); the cover body (51) covers the outer surface of the oil tank (1), and the cover body (51) and the cover seat (52) are detachably matched; the cover body (51) has a first opening for allowing the fixing structure (11) to pass through, a second opening for allowing the input pipe (3) to pass through, and a third opening for allowing the output pipe (4) to pass through; and the support rod (21) is arranged on the top surface of the cover body (51).

7. The oil pump noise detection device according to claim 6, characterized in that: One side of the oil tank (1) has a square corner-cut structure (12); the second rigid section of the output pipe (4) is connected to the interior of the oil tank (1) via a side wall of the corner-cut structure (12).

8. The oil pump noise detection device according to claim 6, characterized in that: It also includes a constant pressure tube (6); the lower end of the constant pressure tube (6) is arranged on the side wall on the other side of the notched structure (12) and is connected to the inside of the oil tank (1); the height of the upper end surface of the constant pressure tube (6) is higher than the top surface of the oil tank (1); and the cover body (51) is also provided with a fourth opening for allowing the upper end of the constant pressure tube (6) to protrude above the cover body (51).

9. The oil pump noise detection device according to any one of claims 1 to 8, characterized in that: The detection assembly (2) further comprises a clamping member; the clamping member is arranged at the upper end of the support rod (21) and is used to clamp or release the microphone (22).

10. The oil pump noise detection device according to claim 1, characterized in that: The controller is also provided with a display screen.

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