Vacuum pump test bench

Abstract

The utility model discloses a vacuum pump test bench, relates to the technical field of test equipment, and particularly relates to a vacuum pump test bench. A double-layer table top is arranged in a cabinet, a vacuum tank is placed on the upper-layer table top, and a vacuum pump is placed on the lower-layer table top; the vacuum pump is connected with the vacuum tank through a bellows; a touch screen is arranged on the cabinet; the upper part of the cabinet is provided with a PLC which is connected with a touch screen and a button group arranged on the cabinet through lines. The vacuum tank is connected with a vacuum gauge. And a vacuum breaking valve is arranged on a tank body of the vacuum tank. A pressure displayer is arranged on the front face of the machine cabinet and connected with the vacuum gauge and the PLC through a circuit. A rectangular cover plate is arranged behind the upper portion of the cabinet, a wiring plate is arranged in the rectangular cover plate, and a PLC is installed on the wiring plate. An exhaust system is arranged on the side face. According to the technical scheme, the problems that in the prior art, after a vacuum pump is maintained, necessary testing means are lacked, and safety and stability of operation of the vacuum pump are difficult to guarantee are solved.

Description

Technical Field

[0001] The utility model relates to a vacuum pump test bench, which relates to the technical field of test equipment, and in particular to a vacuum pump test bench. Background Art

[0002] Vacuum pumps are widely used in various fields, including metallurgy, chemicals, food, and electronic coating. Currently, domestic demand for oil-free vacuum environments is increasing, and with the rapid development of industries such as semiconductors and LEDs, scroll vacuum pumps, as an oil-free vacuum pump, are also rapidly gaining popularity. As the most critical component of the entire vacuum system, vacuum pumps are often outsourced for repair, resulting in high costs. Furthermore, there is a lack of necessary testing methods after repair to ensure the safety and stability of the vacuum pump's operation.

[0003] In view of the problems existing in the above-mentioned prior art, it is very necessary to research and design a new type of vacuum pump test bench to overcome the problems existing in the prior art. Utility Model Content

[0004] In view of the technical problem that the vacuum pump proposed in the prior art lacks necessary testing means after maintenance and is difficult to ensure the safety and stability of the vacuum pump operation, a vacuum pump test bench is provided.

[0005] The technical means adopted by this utility model are as follows:

[0006] A vacuum pump test bench includes: a cabinet;

[0007] Furthermore, the front and right sides of the cabinet are each provided with a lockable double door, the back and left sides are provided with a cover plate fixed by bolts, the cover plate is provided with a vent, and the bottom is provided with a Foma wheel;

[0008] Furthermore, a double-layer table is provided inside the cabinet, the upper table is for placing a vacuum tank, and the lower table is for placing a vacuum pump;

[0009] Further, the vacuum pump is connected to the vacuum tank via a bellows;

[0010] Furthermore, a touch screen is provided on the cabinet;

[0011] Furthermore, a PLC is provided on the upper portion of the cabinet, which is connected to the touch screen and a button group provided on the cabinet via lines.

[0012] Furthermore, the vacuum tank is connected to a vacuum gauge.

[0013] Furthermore, a vacuum breaking valve is provided on the tank body of the vacuum tank.

[0014] Furthermore, the button group includes: a start button, a stop button and an emergency stop button arranged outside the cabinet.

[0015] Furthermore, the front of the cabinet is provided with a vacuum indicator light, a pumping speed indicator light, and a durability indicator light;

[0016] Furthermore, an alarm light is provided on the top of the cabinet.

[0017] Furthermore, an exhaust system is provided on the side of the cabinet.

[0018] Furthermore, a pressure display is provided on the front of the cabinet;

[0019] Furthermore, the pressure display is connected to the vacuum gauge and the PLC via a line.

[0020] Furthermore, a rectangular cover is provided at the rear of the upper portion of the cabinet, a wiring board is provided inside the rectangular cover, and a PLC is installed on the wiring board.

[0021] Furthermore, a power socket is provided on the inner wall of the cabinet.

[0022] Furthermore, the power socket is a single three-hole socket.

[0023] The working process of this utility model is:

[0024] During use, place the vacuum pump of the test piece on the lower table, connect it to the power socket, use a data cable to connect the vacuum pump and PLC, and use a bellows to connect the vacuum pump and the vacuum tank. Turn on the main power of the test bench, select the parameters in the test measurement and control system, set the parameters, and after all settings are completed, click to save the parameters. Click the start button, and the touch screen will display the real-time status data of various items during the test. Turn on the vacuum pump and evacuate the vacuum tank. If any dangerous conditions occur during the process, press the emergency stop button to shut down the entire test bench. The test bench is equipped with sound and light alarms to alert operators to pay attention to safety during the test. The test equipment has complete logical action interlocking protection. The test bench has hardware protection functions such as short circuit and overload, and also has complete software and hardware interlocking protection functions, which can automatically complete fault protection such as overcurrent and short circuit caused by defects in the test product.

[0025] Compared with the prior art, the utility model has the following advantages:

[0026] 1. The vacuum pump test bench provided by this utility model has a simple structure and reasonable design, which improves the test items of vacuum pump performance;

[0027] 2. The vacuum pump test bench provided by the utility model improves the test method and increases the accuracy of the test results;

[0028] 3. The vacuum pump test bench provided by the utility model greatly improves the accuracy and efficiency of vacuum pump performance testing.

[0029] In summary, the technical solution of the present invention solves the problem in the prior art that the vacuum pump lacks necessary testing means after maintenance, making it difficult to ensure the safety and stability of the vacuum pump operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 This is the front axonometric drawing of the utility model;

[0032] Figure 2 This is the rear axonometric drawing of the utility model;

[0033] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0034] In the figure: 1. Cabinet 2. Emergency stop button 3. Exhaust system 4. Lockable double doors 5. Vacuum tank 6. Forma wheel 7. Vacuum pump 8. Touch screen 9. Alarm light 10. Pressure display 11. Vacuum indicator light 12. Start button 13. Pumping speed indicator light 14. Stop button 15. Endurance indicator light 16. Power socket 17. Cover plate 18. Ventilation port 19. Rectangular cover plate 20. Wiring board 21. PLC 22. Bellows 23. Vacuum gauge 24. Vacuum breaker valve. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] Unless otherwise specified, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technology, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0039] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0041] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0042] As shown in the figure, the utility model provides a vacuum pump test bench including: a cabinet 1, a touch screen 8 is provided on the cabinet, a PLC 21 is provided inside the cabinet, and the touch screen and the button group are connected by lines; a double-layer table is provided inside the cabinet, and a vacuum tank 5 is placed on the first layer for testing the pumping speed, etc. A vacuum gauge 23 is connected to the vacuum tank to detect the vacuum degree in the tank, and the tank body is provided with a vacuum breaking valve 24 for breaking the vacuum at the end of the test; the second layer is designed with a drawer-type table for conveniently placing the vacuum pump 7 for testing, the vacuum pump 7 is connected to the vacuum tank through a bellows 22, and a power socket 16 is provided on the inside of the cabinet for drawing power from the vacuum pump.

[0043] The button group includes a start button 12, a stop button 14, and an emergency stop button 2 located on the outside of the cabinet 1. The emergency stop button 2 is a safety design used to stop the test bench in an emergency. The front of the cabinet is provided with a vacuum indicator light 11, a pumping speed indicator light 13, and a durability indicator light 15 for displaying test items. The top of the cabinet is provided with an alarm light 9 for displaying the working status of the entire test bench. The side of the cabinet is provided with an exhaust system 3 for overall heat dissipation of the system.

[0044] A pressure display 10 is provided on the front of the cabinet 1, which is connected to a vacuum gauge 23 and a PLC 21 through a line. A lockable double door 4 is provided on the front and right side of the cabinet, and a cover plate 17 is provided on the back and right side, which is fixed by bolts. A vent 18 is provided on the cover plate 17. A Forma wheel 6 is provided at the bottom of the cabinet for supporting and moving the test bench.

[0045] A rectangular cover plate 19 is provided at the rear of the upper portion of the cabinet 1, on which a wiring board 20 is placed, and on which a PLC 21 is mounted. The cabinet 1 is welded from steel to ensure its strength and operational stability, and the surface is painted for rust prevention and aesthetics.

[0046] The touch screen 8, pressure display 10, PLC 21, vacuum gauge 23 and other components work in coordination. The touch screen 8 is used to operate the test bench and display relevant test data in real time. The pressure display 10 displays the pressure in the vacuum tank 5 in real time. The PLC 21 realizes the functions of each component.

[0047] This test bench can complete vacuum pump ultimate vacuum degree detection, pumping speed detection, whole machine life test, frequent start and stop test, etc.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vacuum pump test bench, characterized by: The vacuum pump test bench comprises: a cabinet (1); The cabinet (1) is provided with a lockable double door (4) on the front and right side, a cover plate (17) fixed by bolts is provided on the back and left side, a vent (18) is provided on the cover plate (17), and a former wheel (6) is provided at the bottom; The cabinet (1) is provided with a double-layer table top inside, the upper table top is provided with a vacuum tank (5), and the lower table top is provided with a vacuum pump (7); The vacuum pump (7) is connected to the vacuum tank (5) via a bellows (22); The cabinet (1) is provided with a touch screen (8); A PLC (21) is provided on the upper portion of the cabinet (1), and is connected to a touch screen (8) and a button group provided on the cabinet (1) via a line.

2. The vacuum pump test bench according to claim 1, characterized in that: The vacuum tank (5) is connected to a vacuum gauge (23).

3. The vacuum pump test bench according to claim 1, characterized in that: The tank body of the vacuum tank (5) is provided with a vacuum breaking valve (24).

4. The vacuum pump test bench according to claim 1, characterized in that: The button group comprises a start button (12), a stop button (14) and an emergency stop button (2) which are arranged outside the cabinet (1).

5. The vacuum pump test bench according to claim 1, characterized in that: The front of the cabinet (1) is provided with a vacuum indicator light (11), a pumping speed indicator light (13), and a durability indicator light (15); An alarm light (9) is provided on the top of the cabinet (1).

6. The vacuum pump test bench according to claim 1, characterized in that: An exhaust system (3) is provided on the side of the cabinet (1).

7. The vacuum pump test bench according to claim 1, characterized in that: A pressure display (10) is provided on the front of the cabinet (1); The pressure display (10) is connected to the vacuum gauge (23) and the PLC (21) via a line.

8. The vacuum pump test bench according to claim 1, characterized in that: A rectangular cover plate (19) is provided at the rear of the upper portion of the cabinet (1), a wiring board (20) is provided inside the rectangular cover plate (19), and a PLC (21) is installed on the wiring board (20).

9. The vacuum pump test bench according to claim 1, characterized in that: A power socket (16) is provided on the inner wall of the cabinet (1).

10. The vacuum pump test bench according to claim 9, characterized in that: The power socket (16) is a single three-hole socket.

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