CN220687557U - Dry vacuum pump pumping speed testing device - Google Patents
Dry vacuum pump pumping speed testing device Download PDFInfo
- Publication number
- CN220687557U CN220687557U CN202322449115.6U CN202322449115U CN220687557U CN 220687557 U CN220687557 U CN 220687557U CN 202322449115 U CN202322449115 U CN 202322449115U CN 220687557 U CN220687557 U CN 220687557U
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- fixedly connected
- pump body
- vacuum
- vacuum pump
- dry vacuum
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000005086 pumping Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a pumping speed testing device of a dry vacuum pump, which comprises a bottom frame, wherein two vacuum boxes are fixedly connected to the top of the bottom frame, the lower half part of one side of each vacuum box is provided with an opening, a pump body is placed at the top of the bottom frame, a fixing plate is fixedly sleeved on the outer peripheral surface of the input end of the pump body, a vacuum gauge and a flowmeter are arranged at the upper half part of each vacuum box, a top frame is fixedly connected to the tops of the two vacuum boxes together, and a driving assembly is arranged below the top frame. The utility model relates to the technical field of vacuum pump testing. After the test is finished, the motor reversely rotates to enable the input end of the pump body to be loosened from the vacuum box, the sealing layer on the other pump body to be tested is fixed with the other vacuum box and the pumping speed is detected, and in the process, the detected pump body can be taken down and a new pump body can be placed, so that the pumping speed test efficiency of the dry vacuum pump is improved.
Description
Technical Field
The utility model relates to the technical field of vacuum pump testing, in particular to a pumping speed testing device of a dry vacuum pump.
Background
The dry mechanical pump is a mechanical vacuum pump which can start pumping air from the atmospheric pressure and can directly discharge an air-pumped body into the atmosphere, oil or other working media are not contained in a pump cavity, and the limit pressure of the pump is the same magnitude as or close to that of the oil seal type vacuum pump, so that the change relation of inlet pressure along with pumping speed is required to be tested when the pump leaves a factory.
When the current dry vacuum pump is tested in a factory, the input end of the dry vacuum pump is required to be communicated with a sealed container, and a vacuum gauge and a flowmeter are arranged on the sealed container, so that the inlet pressure and the pumping speed are tested, however, when the dry vacuum pump is tested in a large batch, the measured dry vacuum pump and the sealed container are required to be detached and replaced by a new dry vacuum pump when the dry vacuum pump is replaced, the process is time-consuming, and the testing efficiency of the dry vacuum pump is reduced.
Disclosure of Invention
According to the defects existing in the prior art, the utility model aims to provide a dry vacuum pump pumping speed testing device, which has the effect of improving the testing efficiency of the dry vacuum pump pumping speed.
The technical aim of the utility model is realized by the following technical scheme:
the utility model provides a dry vacuum pump pumping speed testing arrangement, includes the chassis, two vacuum boxes of chassis top fixedly connected with, vacuum box one side lower half is the opening setting, the pump body has been placed at the chassis top, the fixed cover in pump body input outer peripheral face is equipped with the fixed plate, vacuum box upper half is provided with vacuum gauge and flowmeter, two vacuum box top is fixedly connected with roof-rack jointly, the roof-rack below is provided with drive assembly.
The present utility model may be further configured in a preferred example to: the driving assembly comprises a motor fixedly connected to the inner side wall of the top frame, a screw is connected to the output end of the motor in a transmission mode, a screw block is connected to the outer peripheral surface of the screw in a threaded mode, a limiting portion is arranged above the screw block, connecting plates are fixedly connected to the two opposite side walls of the screw block respectively, the connecting plates are arranged in an L-shaped mode, and an avoidance opening is formed in one side of each connecting plate, corresponding to the input end of the pump body.
The present utility model may be further configured in a preferred example to: the limiting part comprises a limiting strip fixedly connected to the top of the screw block, a limiting groove is formed in the position, corresponding to the limiting strip, of the inner top wall of the top frame, and the limiting strip is partially slidably connected in the limiting groove.
The present utility model may be further configured in a preferred example to: the vacuum box is characterized in that an air inlet is formed in one side of the vacuum box, two fixing columns are fixedly connected to one side of the connecting plate corresponding to the position of the air inlet, a linkage plate is fixedly connected to one end of the connecting plate together, one side of the linkage plate, away from the connecting plate, of the connecting plate, a sealing block is fixedly connected to the other side of the linkage plate, and the sealing block is located at the same height with the corresponding air inlet.
The present utility model may be further configured in a preferred example to: one end of the fixing plate, which is far away from the pump body, is fixedly connected with a sealing layer.
The present utility model may be further configured in a preferred example to: the top of the top frame is fixedly connected with a controller, and the motor is electrically connected with the controller.
The present utility model may be further configured in a preferred example to: the input end of the pump body is provided with a hard tube.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. through the cooperation of fixed plate, motor, connecting plate, lead screw and vacuum chamber, after inserting the pump body input part in the opening of vacuum chamber lower half, the motor work can drive connecting plate horizontal movement, thereby make sealing layer and vacuum chamber tightly laminate, can carry out the pumping test of the pump body this moment, after the test is accomplished, the motor reverse rotation, make the input and the vacuum chamber of this pump body loosen, and the sealing layer on another pump body that awaits measuring is fixed and is carried out pumping detection with another vacuum chamber, in this process, can take off the pump body that detects the completion and place new pump body, thereby the pumping test efficiency of dry-type vacuum pump has been improved.
2. Through the cooperation of sealing block, air inlet and linkage board, after the pump body test is accomplished, the connecting plate moves towards the direction of keeping away from corresponding vacuum box, drives the sealing block and breaks away from corresponding air inlet for corresponding air inlet exposes, thereby makes the vacuum box can automatic recovery initial atmospheric pressure, so that the pump body pumping speed of next time detects, also prevents that the vacuum degree is too big in the vacuum box from leading to when taking down the pump body, the unable condition emergence of pulling down of sealing layer.
Drawings
FIG. 1 is a partial three-dimensional view of the present embodiment;
FIG. 2 is a front sectional view of the present embodiment;
fig. 3 is an enlarged view of fig. 2 at a of the present embodiment;
fig. 4 is an enlarged view of the present embodiment at B in fig. 2.
In the figure, 1, a chassis; 2. a vacuum box; 3. a pump body; 4. a fixing plate; 5. a vacuum gauge; 6. a flow meter; 7. a top frame; 8. a drive assembly; 81. a motor; 82. a screw rod; 83. a screw block; 84. a limit part; 841. a limit bar; 842. a limit groove; 85. a connecting plate; 86. an avoidance port; 9. an air inlet; 10. a linkage plate; 11. a sealing block; 12. a sealing layer; 13. and a controller.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Examples:
referring to fig. 1 to 4, the dry vacuum pump pumping speed testing device disclosed by the utility model comprises a chassis 1, wherein two vacuum boxes 2 are fixedly connected to the top of the chassis 1, and the lower half part of one side of each vacuum box 2 is provided with an opening. The pump body 3 has been placed at chassis 1 top, and the fixed cover in pump body 3 input outer peripheral face is equipped with fixed plate 4, and one end fixedly connected with sealing layer 12 of the pump body 3 is kept away from to fixed plate 4.
The sealing layer 12 is made of SIL silicone rubber material. When the pump body 3 is placed, the input end portion of the pump body 3 is inserted into the opening of the lower half of the vacuum box 2, and the seal layer 12 is made to adhere to the side wall of the vacuum box 2.
The upper half of the vacuum box 2 is provided with a vacuum gauge 5 and a flowmeter 6, the vacuum gauge 5 can measure the inlet pressure of the pump body 3, and the flowmeter 6 can measure the pumping speed of the pump body 3. The tops of the two vacuum boxes 2 are fixedly connected with a top frame 7, and a driving assembly 8 is arranged below the top frame 7.
The driving assembly 8 comprises a motor 81 fixedly connected to the inner side wall of the top frame 7, and a screw rod 82 is connected to the output end of the motor 81 in a transmission manner. Screw block 83 is screwed on the outer peripheral surface of screw rod 82, and limit part 84 is arranged above screw block 83.
The limiting portion 84 includes a limiting bar 841 fixedly connected to the top of the screw block 83, a limiting groove 842 is formed in the inner top wall of the top frame 7 corresponding to the limiting bar 841, and the limiting bar 841 is partially slidably connected in the limiting groove 842, so that the limiting bar 841 can only move horizontally, and the screw block 83 can only move horizontally.
The screw block 83 is fixedly connected with a connecting plate 85 on two opposite side walls, and the connecting plate 85 is L-shaped. An avoidance port 86 is formed in one side of the connecting plate 85, corresponding to the input end of the pump body 3, and when the pump body 3 is placed, the input end part of the pump body 3 is located in the avoidance port 86.
The motor 81 works to drive the screw rod 82 to rotate, the screw rod 82 drives the screw block 83 to horizontally move, the screw block 83 drives the connecting plate 85 to move, the connecting plate 85 contacts the corresponding fixing plate 4 and enables the sealing layer 12 to be tightly attached to the side wall of the vacuum box 2, and therefore the input end of the pump body 3 is communicated with the vacuum box 2 in a sealing mode.
The input end of the pump body 3 is provided with a hard tube, so that the input end part of the pump body 3 is ensured not to fall down due to gravity bending after being inserted into the opening of the lower half part of the vacuum box 2.
An air inlet 9 is formed in one side of the vacuum box 2, two fixing columns are fixedly connected to one side of the connecting plate 85 corresponding to the air inlet 9, a linkage plate 10 is fixedly connected to one end, away from the connecting plate 85, of each fixing column, a sealing block 11 is fixedly connected to one side, away from the connecting plate 85, of each linkage plate 10, and the sealing blocks 11 and the corresponding air inlets 9 are located at the same height. When the connection plate 85 moves toward the vacuum box 2, the sealing block 11 is inserted into the corresponding air inlet 9, and the air inlet 9 is shielded, so that the vacuum box 2 is completely sealed, and at this time, the pumping speed test of the pump body 3 can be performed.
The controller 13 is fixedly connected to the top of the top frame 7, the motor 81 is electrically connected with the controller 13, and the controller 13 controls the motor 81 to work to drive the travel of the connecting plate 85 to move, so that when the linkage plate 10 is attached to the side wall of the vacuum box 2, the motor 81 immediately stops working, and the sealing layer 12 is attached to the side wall of the vacuum box 2 at the moment.
The implementation principle of the embodiment is as follows:
first, two pump bodies 3 are placed on top of the chassis 1, the input end portions of the pump bodies 3 are inserted into the openings in the lower half of the vacuum box 2, and the sealing layer 12 is attached to the side walls of the vacuum box 2.
Starting the motor 81 to work, driving the screw rod 82 to rotate by the motor 81 to work, driving the screw block 83 to horizontally move by the screw rod 82, driving the connecting plate 85 to move by the screw block 83, contacting the corresponding fixing plate 4 by the connecting plate 85 and tightly attaching the sealing layer 12 to the side wall of the vacuum box 2, so that the input end of the pump body 3 is in sealing communication with the vacuum box 2, driving the linkage plate 10 and the sealing block 11 to move by the connecting plate 85, inserting the sealing block 11 into the corresponding air inlet 9, and completely shielding the air inlet 9, wherein the corresponding vacuum box 2 is in a sealing state.
The pump body 3 is then operated and the inlet pressure is tested for its variation with pumping speed by the readings of the vacuum and flow meter 6.
After the testing of the pump body 3 is completed, the motor 81 is reversed to drive the connecting plate 85 to move reversely, so that the other pump body 3 is communicated with the corresponding vacuum box 2 in a sealing way, the corresponding air inlet 9 is shielded, and at the moment, the corresponding pump body 3 can be started to perform pumping speed testing. Meanwhile, the air inlet 9 on the vacuum box 2 for exhausting is exposed, so that the vacuum box 2 is in a normal air pressure state, and the tested pump body 3 can be taken down and a new pump body 3 can be placed, so that the circulation is performed, and the pumping speed testing efficiency of the pump body 3 is greatly improved.
The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (7)
1. The utility model provides a dry vacuum pump pumping speed testing arrangement, includes chassis (1), its characterized in that: the utility model discloses a vacuum pump, including chassis (1), vacuum tank (2), pump body (3) have been placed at chassis (1) top, the fixed cover in pump body (3) input outer peripheral face is equipped with fixed plate (4), vacuum tank (2) top half is provided with vacuum gauge (5) and flowmeter (6), two vacuum tank (2) top is fixedly connected with roof-rack (7) jointly, roof-rack (7) below is provided with drive assembly (8).
2. A dry vacuum pump speed test apparatus as claimed in claim 1, wherein: the driving assembly (8) comprises a motor (81) fixedly connected to the inner side wall of the top frame (7), a screw rod (82) is connected to the output end of the motor (81) in a transmission mode, a screw block (83) is connected to the outer peripheral surface of the screw rod (82) in a threaded mode, a limiting portion (84) is arranged above the screw block (83), connecting plates (85) are fixedly connected to the two opposite side walls of the screw block (83), the connecting plates (85) are in L-shaped arrangement, and an avoidance opening (86) is formed in one side of each connecting plate (85) corresponding to the input end of the pump body (3).
3. A dry vacuum pump speed test apparatus as claimed in claim 2, wherein: the limiting part (84) comprises a limiting strip (841) fixedly connected to the top of the screw block (83), a limiting groove (842) is formed in the position, corresponding to the limiting strip (841), of the inner top wall of the top frame (7), and the limiting strip (841) is partially and slidably connected into the limiting groove (842).
4. A dry vacuum pump speed test apparatus as claimed in claim 2, wherein: air inlet (9) have been seted up to vacuum box (2) one side, connecting plate (85) one side corresponds the position fixedly connected with two fixed columns of air inlet (9), two fixed columns keep away from the common fixedly connected with linkage board (10) of one end of connecting plate (85), linkage board (10) are kept away from one side fixedly connected with sealing block (11) of connecting plate (85), sealing block (11) are located same height with corresponding air inlet (9).
5. A dry vacuum pump speed test apparatus as claimed in claim 2, wherein: one end of the fixing plate (4) far away from the pump body (3) is fixedly connected with a sealing layer (12).
6. The dry vacuum pump speed test device according to claim 5, wherein: the top of the top frame (7) is fixedly connected with a controller (13), and the motor (81) is electrically connected with the controller (13).
7. A dry vacuum pump speed test apparatus as claimed in claim 1, wherein: the input end of the pump body (3) is a hard tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322449115.6U CN220687557U (en) | 2023-09-08 | 2023-09-08 | Dry vacuum pump pumping speed testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322449115.6U CN220687557U (en) | 2023-09-08 | 2023-09-08 | Dry vacuum pump pumping speed testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220687557U true CN220687557U (en) | 2024-03-29 |
Family
ID=90406082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322449115.6U Active CN220687557U (en) | 2023-09-08 | 2023-09-08 | Dry vacuum pump pumping speed testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220687557U (en) |
-
2023
- 2023-09-08 CN CN202322449115.6U patent/CN220687557U/en active Active
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