CN215170861U

CN215170861U - Air-cooled molecular pump for grease lubrication

Info

Publication number: CN215170861U
Application number: CN202023324590.3U
Authority: CN
Inventors: 韩玉宾; 韩福武
Original assignee: Shandong Century Antai Vacuum Equipment Co ltd
Current assignee: Shandong Century Antai Vacuum Equipment Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-12-14
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a grease lubrication air-cooled molecular pump, which comprises a pump body, one side of the pump body is connected with an exhaust port flange, the other side of the pump body is provided with a clamping device, the clamping device comprises a mounting plate, one side of the mounting plate is connected with a binding post, the outer side of the binding post is connected with a spacing ring, the outer side of the spacing ring is provided with a rotating block, the outer side of the binding post is provided with a spacing groove, the inner part of the spacing groove is provided with a compressing device, the compressing device comprises a compression bar, the upper end of the compression bar is connected with a limiting block, one side of the compression bar is internally connected with a rotating shaft, the lower end of the other side of the compression bar is connected with a pressing block, the lower end of the compression bar is connected with a spring, the lower end of the pump body is provided with a pump leg, the grease lubrication air-cooled molecular pump can fix and protect the electric wire in the binding post, the electric wire is prevented from falling off or being damaged when in use, and the service life of the electric wire is prolonged.

Description

Air-cooled molecular pump for grease lubrication

Technical Field

The utility model relates to a vacuum obtains technical field, in particular to lubricated forced air cooling molecular pump of fat.

Background

The molecular pump is a vacuum pump which utilizes a rotor rotating at high speed to transmit momentum to gas molecules to enable the gas molecules to obtain directional speed, so that the gas molecules are compressed and driven to an exhaust port and then pumped away by a front stage, in the design of the composite molecular pump, the matching and connection relationship between a turbine stage and a traction stage must be well processed, because the turbine stage has a larger pumping area, the pumping speed is very large, the pumping area of a groove of the traction stage is small, the flow mode of the gas molecules compressed by a turbine blade is suddenly changed at the joint of the two structures, the movement of the gas molecules is changed from orderly to disordered at the joint, the backflow is increased, the pumping capacity is reduced, therefore, a transition stage structure is added at the transition part of the turbine stage and the traction stage during the design to improve the pumping performance of the pump, along with the continuous improvement of the composite molecular pump, the application field of the composite molecular pump is wider and wider, and the composite molecular pump can replace a diffusion pump on certain pumping systems, the air pumping time of the system is shortened, and a clean vacuum environment without oil pollution can be obtained;

the conventional grease lubrication air-cooled molecular pump is not provided with a protection device for a wiring port when in use, and an electric wire cannot be fixed, so that the electric wire is easy to fall off when the air-cooled molecular pump is used, or the electric wire is damaged after the air-cooled molecular pump is used for a long time, the equipment is influenced, the equipment is shut down, and economic loss is caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a lubricated forced air cooling molecular pump of fat can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a grease lubrication air-cooled molecular pump comprises a pump body, wherein one side of the pump body is connected with an exhaust port flange, the other side of the pump body is provided with a clamping device, the clamping device comprises a mounting plate, one side of the mounting plate is connected with a binding post, the outer side of the binding post is connected with a limiting ring, the outer side of the limiting ring is provided with a rotating block, the outer side of the binding post is provided with a limiting groove, a pressing device is arranged in the limiting groove and comprises a pressing rod, the upper end of the pressing rod is connected with a limiting block, a rotating shaft is connected inside one side of the pressure lever, a pressing block is connected at the lower end of the other side of the pressure lever, the lower end of the pressure lever is connected with a spring, the lower end of the pump body is provided with a pump leg, the inner side of the pump leg at the lower end of the pump body is connected with a bearing seat, and a fan is arranged below the inner bearing seat of the pump leg, and the upper end of the pump body is connected with a pump shell.

Preferably, the mounting panel passes through the screw installation in one side of the pump body, the outside one end of terminal is provided with the screw thread, the inside of spacing collar is provided with the screw thread, terminal outside screw thread agrees with the spacing collar internal thread mutually, the commentaries on classics piece is provided with eight groups, and eight groups change even distribution in the outside of spacing collar of piece.

Preferably, the compression bar is arranged in the limiting groove, the compression bar is rotatably connected with the limiting groove through a rotating shaft, the upper end of the spring is fixedly connected with the lower end of the compression bar, the lower end of the spring is fixedly connected with the lower end of the limiting groove, and the spring is arranged on one side close to the rotating shaft.

Preferably, the upper end of one side of the pressing rod is provided with a thread, the thread at the upper end of the pressing rod is matched with the thread inside the limiting ring, the thread at the upper end of the pressing rod is arranged above the rotating shaft, and the pressing block is made of rubber.

Preferably, four sets of limiting grooves are arranged and are uniformly distributed on the outer side of the binding post.

Preferably, four groups of pump legs are arranged and are uniformly fixed at the lower end of the pump body, and the bearing seat is arranged at the central part of the lower end of the pump body.

Preferably, the pump housing is formed by welding a stainless steel pipe and a flange.

Compared with the prior art, the utility model discloses following beneficial effect has: the pump body is placed on the ground through the pump legs, the stability of the pump body can be kept through the pump legs, electric wires are inserted into the binding posts, the pressing rod is pressed after the completion of the electric wire connection is confirmed, the lower end of the pressing rod is attached to the inside of the limiting groove, the rotating of the pressing rod can drive the rotating shaft to rotate in the limiting groove and compress the spring, then the limiting ring is rotated, the pressing rod is pressed by the limiting ring, the rotating block outside the limiting ring can enable the limiting ring to rotate more conveniently, the limiting ring can be prevented from falling off the surface of the binding posts through the limiting blocks, the electric wires can be compressed and protected through the pressing blocks, the electric wires are prevented from falling off when in use, the pump body can be cooled by the starting fan, then the pump body is started, cold air can be conveyed upwards through the pump shell during the operation of the pump body, waste gas generated during the operation of the pump body can be discharged from the exhaust port flange, when the electric wires need to be replaced, the limiting ring is unscrewed from the upper ends of the pressing rod, the spring can be opened to the sound this moment and is bounced the depression bar and loosen the electric wire, can be convenient this moment take off the electric wire, in this embodiment, can fix and protect the inside electric wire of terminal, prevent that the electric wire from droing or damaging when using, increase the life of electric wire.

Drawings

Fig. 1 is a schematic view of the overall structure of a grease lubrication air-cooled molecular pump of the present invention;

FIG. 2 is a schematic structural view of a clamping device of the grease lubrication air-cooled molecular pump of the present invention;

fig. 3 is an exploded view of a clamping device of a grease lubrication air-cooled molecular pump according to the present invention;

fig. 4 is a schematic structural view of the compressing device of the grease lubrication air-cooled molecular pump of the present invention.

In the figure: 1. a pump body; 2. an exhaust port flange; 3. a clamping device; 31. mounting a plate; 32. a limiting ring; 33. rotating the block; 34. a binding post; 35. a pressing device; 351. a pressure lever; 352. a limiting block; 353. a rotating shaft; 354. a spring; 355. briquetting; 36. a limiting groove; 4. a pump housing; 5. a pump leg; 6. a bearing seat; 7. a fan.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-4, a grease lubrication air-cooled molecular pump comprises a pump body 1, one side of the pump body 1 is connected with an exhaust port flange 2, the other side of the pump body 1 is provided with a clamping device 3, the clamping device 3 comprises a mounting plate 31, one side of the mounting plate 31 is connected with a terminal 34, the outer side of the terminal 34 is connected with a spacing ring 32, the outer side of the spacing ring 32 is provided with a rotating block 33, the outer side of the terminal 34 is provided with a spacing groove 36, the inside of the spacing groove 36 is provided with a compressing device 35, the compressing device 35 comprises a compression bar 351, the upper end of the compression bar 351 is connected with a spacing block 352, one side of the compression bar 351 is internally connected with a rotating shaft 353, the lower end of the other side of the compression bar 351 is connected with a pressing block 355, the lower end of the compression bar 351 is connected with a spring 354, the lower end of the pump body 1 is provided with a pump leg 5, the inner side of the pump leg 5 is connected with a bearing seat 6, and a fan 7 is arranged below the inner bearing seat 6 of the pump leg 5, the upper end of the pump body 1 is connected with a pump shell 4.

In this embodiment, the mounting plate 31 is mounted on one side of the pump body 1 through a screw, one end of the outer side of the terminal 34 is provided with a thread, the inside of the limit ring 32 is provided with a thread, the thread on the outer side of the terminal 34 is matched with the thread inside the limit ring 32, the rotating blocks 33 are provided with eight groups, and the eight groups of rotating blocks 33 are uniformly distributed on the outer side of the limit ring 32.

Specifically, the limiting ring 32 can be rotated on the surface of the binding post 34 by screwing the limiting ring 32, and the limiting ring 32 can be moved more conveniently.

In this embodiment, the pressing rod 351 is installed inside the limiting groove 36, the pressing rod 351 is rotatably connected with the limiting groove 36 through the rotating shaft 353, the upper end of the spring 354 is fixedly connected with the lower end of the pressing rod 351, the lower end of the spring 354 is fixedly connected with the lower end of the inside of the limiting groove 36, and the spring 354 is installed on one side close to the rotating shaft 353.

Specifically, the rotation of the pressing rod 351 can be facilitated through the rotating shaft 353, and the pressing rod 351 can be bounced through the spring 354, so that the use of the pressing rod 351 is facilitated.

In this embodiment, a screw thread is disposed at an upper end of one side of the pressing rod 351, the screw thread at the upper end of the pressing rod 351 is engaged with the screw thread inside the limiting ring 32, the screw thread at the upper end of the pressing rod 351 is disposed above the rotating shaft 353, and the pressing block 355 is made of rubber.

Specifically, the pressing rod 351 can be conveniently pressed by the limiting ring 32 through threads at the upper end of the pressing rod 351, so that the pressing rod 351 can be pressed on an electric wire.

In this embodiment, four sets of limiting grooves 36 are provided, and the four sets of limiting grooves 36 are uniformly distributed on the outer side of the terminal 34.

Specifically, the pressing rod 351 can be more conveniently installed through the limiting groove 36, so that the electric wire can be more comprehensively protected.

In this embodiment, four sets of pump legs 5 are provided, and the four sets of pump legs 5 are uniformly fixed at the lower end of the pump body 1, and the bearing seat 6 is installed at the central part of the lower end of the pump body 1.

Specifically, the pump body 1 can be supported by the pump legs 5, and the stability of the pump body 1 is maintained.

In this embodiment, the pump case 4 is formed by welding a stainless steel pipe and a flange.

Specifically, the process of beating and rubbing the weld can be omitted by the pump case 4.

It should be noted that, the utility model relates to a grease lubrication air-cooled molecular pump, place the pump body 1 on the ground through pump leg 5 during the use, peg graft the electric wire in the inside of terminal 34, press depression bar 351 after confirming the connection of electric lines is accomplished, make the lower extreme of depression bar 351 and the inside of spacing groove 36 laminate mutually, depression bar 351 rotates and can drive pivot 353 and rotate and compress spring 354 in the inside of spacing groove 36, then rotate spacing collar 32, make spacing collar 32 push down depression bar 351, can prevent that spacing collar 32 from coming off from terminal 34 surface through stopper 352, can compress tightly the electric wire and protect the electric wire through briquetting 355, start fan 7 and can cool down the pump body 1, then start pump body 1, pump body 1 moves and can upwards carry cold wind through pump case 4, the waste gas that pump body 1 moved and produces can be discharged from gas vent flange 2, when needing to change the electric wire, the limiting ring 32 is unscrewed from the upper end of the pressing rod 351, at the moment, the spring 354 can be used for popping up the pressing rod 351 to loosen the electric wire, and the electric wire can be conveniently taken down.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fat lubrication forced air cooling molecular pump, includes pump body (1), its characterized in that: one side of the pump body (1) is connected with an exhaust port flange (2), the other side of the pump body (1) is provided with a clamping device (3), the clamping device (3) comprises a mounting plate (31), one side of the mounting plate (31) is connected with a binding post (34), the outer side of the binding post (34) is connected with a limiting ring (32), the outer side of the limiting ring (32) is provided with a rotating block (33), the outer side of the binding post (34) is provided with a limiting groove (36), the inside of the limiting groove (36) is provided with a pressing device (35), the pressing device (35) comprises a pressing rod (351), the upper end of the pressing rod (351) is connected with a limiting block (352), one side of the pressing rod (351) is internally connected with a rotating shaft (353), the lower end of the other side of the pressing rod (351) is connected with a pressing block (355), and the lower end of the pressing rod (351) is connected with a spring (354), the pump comprises a pump body (1) and is characterized in that pump legs (5) are installed at the lower end of the pump body (1), a bearing seat (6) is connected to the inner side of each lower pump leg (5) of the pump body (1), a fan (7) is arranged below each inner bearing seat (6) of each pump leg (5), and a pump shell (4) is connected to the upper end of the pump body (1).

2. The grease-lubricated air-cooled molecular pump of claim 1, wherein: the utility model discloses a pump body, including pump body (1), mounting panel (31), terminal (34), spacing collar (32), terminal (34) outside screw thread, the outside one end of mounting panel (31) is provided with the screw thread through the screw installation in one side of the pump body (1), the outside one end of terminal (34) is provided with the screw thread, the inside of spacing collar (32) is provided with the screw thread, terminal (34) outside screw thread agrees with mutually with spacing collar (32) internal thread, it is provided with eight groups to change piece (33), and eight groups change even distribution in the outside of spacing collar (32) of piece (33).

3. The grease-lubricated air-cooled molecular pump of claim 1, wherein: the pressing rod (351) is installed inside the limiting groove (36), the pressing rod (351) is rotatably connected with the limiting groove (36) through a rotating shaft (353), the upper end of the spring (354) is fixedly connected with the lower end of the pressing rod (351), the lower end of the spring (354) is fixedly connected with the lower end of the inside of the limiting groove (36), and the spring (354) is installed on one side close to the rotating shaft (353).

4. The grease-lubricated air-cooled molecular pump of claim 1, wherein: the upper end of one side of the pressure lever (351) is provided with threads, the threads at the upper end of the pressure lever (351) are matched with the threads inside the limiting ring (32), the threads at the upper end of the pressure lever (351) are arranged above the rotating shaft (353), and the pressing block (355) is made of rubber.

5. The grease-lubricated air-cooled molecular pump of claim 1, wherein: four sets of limiting grooves (36) are arranged, and the four sets of limiting grooves (36) are uniformly distributed on the outer side of the binding post (34).

6. The grease-lubricated air-cooled molecular pump of claim 1, wherein: the pump is characterized in that four groups of pump legs (5) are arranged, the four groups of pump legs (5) are uniformly fixed at the lower end of the pump body (1), and the bearing seat (6) is installed at the center of the lower end of the pump body (1).

7. The grease-lubricated air-cooled molecular pump of claim 1, wherein: the pump shell (4) is formed by welding a stainless steel pipe and a flange.