CN219119450U

CN219119450U - Roots vacuum pump with overload protection device

Info

Publication number: CN219119450U
Application number: CN202221685976.3U
Authority: CN
Inventors: 宋建国
Original assignee: Wuhan Weilong Pump Industry Co ltd
Current assignee: Wuhan Weilong Pump Industry Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2023-06-02
Anticipated expiration: 2032-07-01

Abstract

The utility model discloses a Roots vacuum pump with an overload protection device, which comprises a support base and a vacuum pump shell, wherein the support base is arranged below the vacuum pump shell, a driving motor is arranged on one side of the vacuum pump shell, an air inlet is arranged at the top end of the interior of the vacuum pump shell, an air outlet is arranged at the bottom end of the interior of the vacuum pump shell, a fixed bearing is arranged on the left side of the interior of the vacuum pump shell, a suction chamber is arranged in the interior of the vacuum pump shell, and a Roots piston is arranged in the suction chamber. This roots vacuum pump with overload protection device inserts the inside fixed of constant head tank through the locating lever, only need during the dismantlement with the locating lever follow the constant head tank inside take out can, the overflow valve can not appear the condition emergence of overload according to the air pressure difference protection vacuum pump main part of air inlet and gas outlet, and this structure has realized the function of being convenient for install and dismantlement, has solved the problem of easy overload and inconvenient installation.

Description

Roots vacuum pump with overload protection device

Technical Field

The utility model relates to the technical field of vacuum pumps, in particular to a Roots vacuum pump with an overload protection device.

Background

The Roots vacuum pump is a variable-capacity vacuum pump in which two blade-shaped rotors synchronously rotate in opposite directions are arranged in the pump, small gaps are formed between the rotors and the inner wall of a pump shell, and the small gaps are not contacted with each other.

Disclosure of Invention

The utility model aims to provide a Roots vacuum pump with an overload protection device, which solves the problems that overload is easy and installation is inconvenient in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a roots vacuum pump with overload protection device, includes support base and vacuum pump shell, the below of vacuum pump shell is provided with the support base, driving motor is installed to one side of vacuum pump shell, the inside top of vacuum pump shell is provided with the air inlet, the inside bottom of vacuum pump shell is provided with the gas outlet, fixed bearing is installed in the inside left side of vacuum pump shell, the inside of vacuum pump shell is provided with the suction chamber, the inside of suction chamber is provided with roots piston, the inside right side movable mounting of vacuum pump shell has movable bearing, one side fixedly connected with gear of movable bearing, the inside of vacuum pump shell is provided with sealed gas chamber, the both sides fixedly connected with supporting leg on support base top, the both sides fixedly connected with installation cover of vacuum pump shell bottom, the internally mounted of vacuum pump shell has the overflow valve.

Preferably, the inside of supporting leg is provided with the mounting groove, the inside fixedly connected with lug of installation cover, the mounting groove cover is in the outside of lug.

Preferably, the two sides of the inside of the installation sleeve are movably connected with positioning rods, the two sides of the supporting legs are provided with positioning grooves, and the positioning rods are embedded in the positioning grooves.

Preferably, the top fixedly connected with backup pad of support base, the top of backup pad is provided with the elastic plate, fixedly connected with elastic rod between backup pad and the elastic plate.

Preferably, the inside fixedly connected with acoustic celotex board of vacuum pump shell, it has the board of making an uproar to fall between acoustic celotex board and the vacuum pump shell.

Preferably, labyrinth seals are arranged outside the fixed bearing and the movable bearing.

Compared with the prior art, the utility model has the beneficial effects that: the Roots vacuum pump with the overload protection device not only realizes overload protection and is convenient to install, realizes more stable support, but also realizes noise reduction and sound insulation;

(1) Through being provided with supporting leg, locating lever, constant head tank, installation cover and mounting groove, first will install the cover outside the supporting leg when the vacuum pump shell is installed, the lug of installation cover inboard inserts the mounting groove inside of supporting leg, later will be located the inside of constant head tank again and can realize fixing, only need take out the locating lever from the constant head tank inside when dismantling, then will install the cover and take off from the supporting leg can, the overflow valve can be according to the condition emergence that the air pressure difference protection vacuum pump main part of air inlet and gas outlet can not appear transshipping, this structure has realized the function of being convenient for installation and dismantlement;

(2) The supporting base, the supporting plate, the elastic rod and the elastic plate are arranged, the rubber pad at the bottom of the supporting base can improve the placement stability of the vacuum pump, the elastic rod and the elastic plate above the supporting base can support the bottom of the vacuum pump after the vacuum pump is arranged above the supporting base, vibration can occur when the vacuum pump works, and the elastic plate can buffer the vibration vacuum pump after the vibration vacuum pump contacts the elastic plate, so that the structure improves the support stability of the vacuum pump;

(3) Through being provided with suction chamber, acoustic celotex board and the board of making an uproar falls, vacuum pump shell internally mounted acoustic celotex board, the acoustic celotex board that the acoustic celotex board adopted is soft material's acoustic celotex board, and the acoustic celotex board laminating can reduce the noise pollution when the pump body uses in the inboard of vacuum pump shell, and the inboard acoustic celotex board of making an uproar that falls of acoustic celotex board adopts is the acoustic celotex cotton suppression to form, and the acoustic celotex board of making an uproar has further improved the effect of making an uproar of vacuum pump, and this structure has realized the function of making an uproar that falls and give an uproar.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic elevational view of the present utility model;

FIG. 3 is a schematic side sectional view of the present utility model;

fig. 4 is an enlarged partial sectional view of fig. 1 according to the present utility model.

In the figure: 1. a support base; 2. support legs; 3. a vacuum pump housing; 4. a driving motor; 5. sealing the gas cavity; 6. fixing a bearing; 7. an air inlet; 8. roots piston; 9. a gear; 10. a movable bearing; 11. labyrinth sealing; 12. an air outlet; 13. a support plate; 14. an elastic rod; 15. an elastic plate; 16. an overflow valve; 17. a suction chamber; 18. a sound insulation board; 19. a noise reduction plate; 20. a positioning groove; 21. a positioning rod; 22. a mounting sleeve; 23. and a mounting groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1: referring to fig. 1-4, a Roots vacuum pump with overload protection device comprises a support base 1 and a vacuum pump housing 3, wherein the support base 1 is arranged below the vacuum pump housing 3, a driving motor 4 is arranged on one side of the vacuum pump housing 3, an air inlet 7 is arranged at the top end of the inside of the vacuum pump housing 3, an air outlet 12 is arranged at the bottom end of the inside of the vacuum pump housing 3, a fixed bearing 6 is arranged on the left side of the inside of the vacuum pump housing 3, a suction chamber 17 is arranged inside the vacuum pump housing 3, a Roots piston 8 is arranged inside the suction chamber 17, a movable bearing 10 is movably arranged on the right side of the inside of the vacuum pump housing 3, a gear 9 is fixedly connected to one side of the movable bearing 10, a sealing gas cavity 5 is arranged inside the vacuum pump housing 3, support legs 2 are fixedly connected to two sides of the top end of the support base 1, a mounting sleeve 22 is fixedly connected to two sides of the bottom end of the vacuum pump housing 3, and an overflow valve 16 is arranged inside the vacuum pump housing 3;

the positioning rod 21 is embedded in the positioning groove 20, the positioning rod 21 is movably connected to the two sides of the inside of the mounting sleeve 22, the positioning groove 20 is arranged on the two sides of the supporting leg 2, the positioning rod 21 is embedded in the positioning groove 20, and the labyrinth seal 11 is arranged outside the fixed bearing 6 and the movable bearing 10;

specifically, as shown in fig. 1, 2, 3 and 4, the installation sleeve 22 is sleeved outside the supporting leg 2 and can be used for installing the vacuum pump casing 3, the protruding block on the inner side of the installation sleeve 22 is inserted into the installation groove 23 of the supporting leg 2, then the positioning rod 21 is inserted into the positioning groove 20 to achieve fixation, and when the installation sleeve is disassembled, the installation sleeve 22 is removed from the supporting leg 2 only by drawing the positioning rod 21 out of the positioning groove 20.

Example 2: the top end of the support base 1 is fixedly connected with a support plate 13, an elastic plate 15 is arranged above the support plate 13, and an elastic rod 14 is fixedly connected between the support plate 13 and the elastic plate 15;

specifically, as shown in fig. 1 and 2, after the vacuum pump is installed above the support base 1, the elastic rod 14 and the elastic plate 15 above the support base 1 can support the bottom of the vacuum pump, vibration can occur when the vacuum pump works, after the vibrating vacuum pump contacts the elastic plate 15, the elastic plate 15 can buffer the vibrating vacuum pump, and the rubber pad at the bottom of the support base 1 can improve the placement stability of the vacuum pump.

Example 3: the inside of the vacuum pump shell 3 is fixedly connected with a sound insulation plate 18, and a noise reduction plate 19 is filled between the sound insulation plate 18 and the vacuum pump shell 3;

specifically, as shown in fig. 1 and 3, the acoustic panel 18 is made of soft acoustic soft board, the acoustic panel 18 is attached to the inner side of the vacuum pump housing 3, so that noise pollution during use of the pump body can be reduced, the noise reduction board 19 on the inner side of the acoustic panel 18 is made of pressed acoustic cotton, and the noise reduction board 19 improves the noise reduction effect of the vacuum pump.

Working principle: when the vacuum pump is used, the mounting sleeve 22 is sleeved outside the supporting leg 2, the protruding blocks on the inner side of the mounting sleeve 22 are inserted into the mounting grooves 23 of the supporting leg 2, then the positioning rod 21 is inserted into the positioning grooves 20, fixing can be achieved, the positioning rod 21 is only required to be pulled out from the inside of the positioning grooves 20 when the vacuum pump is detached, the mounting sleeve 22 is taken down from the supporting leg 2, after the vacuum pump is arranged above the supporting base 1, the elastic rod 14 and the elastic plate 15 above the supporting base 1 can support the bottom of the vacuum pump, vibration can occur when the vacuum pump works, after the vibrating vacuum pump contacts the elastic plate 15, the elastic plate 15 can buffer the vibrating vacuum pump, the rubber pad on the bottom of the supporting base 1 can improve the placement stability of the vacuum pump, the sound insulation plate 18 is made of soft sound insulation soft plates, the sound insulation plate 18 is attached to the inner side of the vacuum pump shell 3, noise pollution can be reduced when the pump body is used, the sound insulation plate 19 on the inner side of the sound insulation plate 18 is made of sound insulation cotton, the sound insulation plate 19 further improves the vibration reduction effect of the vacuum pump, and the structure is convenient to install and detach.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Roots vacuum pump with overload protection device, including supporting base (1) and vacuum pump shell (3), its characterized in that: the utility model discloses a vacuum pump, including vacuum pump shell (3), driving motor (4) are installed to the below of vacuum pump shell (3), the inside top of vacuum pump shell (3) is provided with air inlet (7), the inside bottom of vacuum pump shell (3) is provided with gas outlet (12), fixed bearing (6) are installed in the inside left side of vacuum pump shell (3), the inside of vacuum pump shell (3) is provided with suction chamber (17), the inside of suction chamber (17) is provided with Roots piston (8), the right side movable mounting of vacuum pump shell (3) inside has movable bearing (10), one side fixedly connected with gear (9) of movable bearing (10), the inside of vacuum pump shell (3) is provided with sealed gas chamber (5), the both sides fixedly connected with supporting leg (2) on supporting base (1) top, the both sides fixedly connected with installation cover (22) of vacuum pump shell (3) bottom, the internally mounted overflow valve (16) of vacuum pump shell (3).

2. A roots vacuum pump with overload protection device according to claim 1 wherein: the inside of supporting leg (2) is provided with mounting groove (23), the inside fixedly connected with lug of installation cover (22), the outside at the lug is overlapped in mounting groove (23).

3. A roots vacuum pump with overload protection device according to claim 1 wherein: positioning rods (21) are movably connected to two sides of the inside of the mounting sleeve (22), positioning grooves (20) are formed in two sides of the supporting legs (2), and the positioning rods (21) are embedded in the positioning grooves (20).

4. A roots vacuum pump with overload protection device according to claim 1 wherein: the inside fixedly connected with acoustic celotex board (18) of vacuum pump shell (3), be filled between acoustic celotex board (18) and vacuum pump shell (3) and fall board (19) of making an uproar.

5. A roots vacuum pump with overload protection device according to claim 1 wherein: the top of support base (1) fixedly connected with backup pad (13), the top of backup pad (13) is provided with elastic plate (15), fixedly connected with elastic rod (14) between backup pad (13) and elastic plate (15).

6. A roots vacuum pump with overload protection device according to claim 1 wherein: the outer parts of the fixed bearing (6) and the movable bearing (10) are provided with labyrinth seals (11).