CN204402889U

CN204402889U - A kind of Novel dry vacuum pump structure

Info

Publication number: CN204402889U
Application number: CN201420724032.1U
Authority: CN
Inventors: 冯启清
Original assignee: ZIBO RELAT VACCUM EQUIPMENT Co Ltd
Current assignee: ZIBO RELAT VACCUM EQUIPMENT Co Ltd
Priority date: 2014-11-26
Filing date: 2014-11-26
Publication date: 2015-06-17
Anticipated expiration: 2024-11-26

Abstract

The utility model relates to a kind of Novel dry vacuum pump structure, comprises the main wheel in the pump housing and inner chamber thereof, follower I, follower II, and described follower I, follower II are arranged at main wheel arranged on left and right sides respectively; Offer suction port I successively respectively in pump housing outside, end face that suction port II and two suction ports are separately positioned on pump housing both sides; Described main wheel outward edge arranges four teeth and is respectively tooth I, tooth II, tooth III, tooth IV, meanwhile, offers two teeth groove respectively at the outward edge of each follower; The teeth groove end face of described follower I, follower II arranges end face exhausting mouth I, end face exhausting mouth II successively respectively.The utility model beneficial effect is: this pump can directly reverse operation, uses as compressor; The gear teeth, teeth groove mode can be changed, the changeable main wheel number of teeth, follower quantity and teeth groove quantity; Can rate of air sucked in required be increased, also can be used as little rate of air sucked in required vacuum pump and use; Multistage suction, exhaust and compression can be realized, gas clean-up.

Description

A kind of Novel dry vacuum pump structure

Technical field

The utility model relates to mechanical vacuum pump technical field, particularly relates to a kind of Novel dry vacuum pump structure.

Background technique

Existing Roots pump, claw vacuum pump belong to rotor class mechanical vacuum has become the conventional vacuum pump of pumping equipment, but Roots pump does not possess compression function in chamber and can not directly use, can only with other vacuum pump combined running, and claw vacuum pump structure is asymmetric, vibration amplitude is large, noise is large, and the existence of radial force has a significant impact bearing working life.Therefore, for above aspect, need reasonably to improve prior art.

Model utility content

For above defect, the feature of the comprehensive Roots pump of the utility model and claw vacuum pump two vacuum pump, provides a kind of novel evacuated pump structure, its major character is compression strap in symmetrical configuration, chamber, can be used alone, shake little, noise is low, radial force can cancel each other.

For achieving the above object, the utility model is by the following technical solutions:

A kind of Novel dry vacuum pump structure, comprise the main wheel in the pump housing and inner chamber thereof, follower I, follower II, described follower I, follower II are arranged at main wheel arranged on left and right sides respectively;

Offer suction port I successively respectively in pump housing outside, end face that suction port II and two suction ports are separately positioned on pump housing both sides;

Described main wheel outward edge arranges four teeth and is respectively tooth I, tooth II, tooth III, tooth IV, meanwhile, offers two teeth groove respectively at the outward edge of each follower;

Described main wheel two teeth wherein engage with a teeth groove of follower I, a teeth groove of follower II respectively;

The teeth groove end face of described follower I, follower II arranges end face exhausting mouth I, end face exhausting mouth II successively respectively.

Correspondingly, also following characteristics is comprised:

Described main wheel, follower I and follower II are non-fully gear, and follower is set to even number, and main wheel outward edge is with even number tooth;

Described follower I or follower II lifting surface area is less than main wheel and its radial force is little, the main wheel radial forces that compression process produces can be cancelled out each other;

Described main wheel, follower I or follower II can change class 8 word special-shaped wheel into, and can change the gear teeth, teeth groove mode, engagement system is identical;

After described main wheel disk diameter diminishes that its tooth depth strains greatly mutually, follower diameter respective change ensures that two-wheeled does not contact and relies on slit seal, rate of air sucked in required can be increased; Main wheel disk diameter becomes that large tooth depth correspondingly diminishes, follower diameter respective change ensures that two-wheeled does not contact and after relying on slit seal, can be used as the little rate of air sucked in required pump of high pressure and use.

The beneficial effect of Novel dry vacuum pump structure described in the utility model is:

(1) this pump can directly reverse operation, uses as compressor;

(2) main wheel, trailing wheel can change the special-shaped wheels such as class 8 word into, and can change the gear teeth, teeth groove mode, the changeable main wheel number of teeth, follower quantity and teeth groove quantity, the theory of engagement is identical;

(3) trailing wheel is that even number is symmetrical, offsets main wheel radial force, protection main wheel bearing;

(4) main wheel disk diameter diminishes, and its tooth depth strains greatly mutually, follower diameter respective change ensures that two-wheeled does not contact but by after slit seal, can increase rate of air sucked in required; Disk diameter becomes that large tooth depth correspondingly diminishes, follower diameter respective change ensures that two-wheeled does not contact but by after slit seal, can be used as little rate of air sucked in required vacuum pump and use;

(5), in the same pump housing, coaxially can increase main wheel, driven wheels number, each self-enclosed by dividing plate, realize multistage suction, exhaust and compression, gas clean-up.

Accompanying drawing explanation

With reference to the accompanying drawings the utility model is described in further detail below.

Fig. 1 is the beginning exhaust condition schematic diagram of Novel dry vacuum pump structure described in the utility model embodiment;

Fig. 2 is the exc. view of Novel dry vacuum pump structure described in the utility model embodiment.

In figure:

1, main wheel; 2, follower I; 3, follower II; 4, tooth I; 5, tooth II; 6, tooth III; 7, tooth IV; 8, suction port I; 11, suction port II; 12, the pump housing; 13, end face exhausting mouth I; 14, end face exhausting mouth II.

Embodiment

As shown in Figure 1-2, Novel dry vacuum pump structure described in the utility model embodiment, comprise the main wheel 1 in the pump housing 12 and inner chamber thereof, follower I 2, follower II 3, described main wheel 1, follower I 2 and follower II 3 are non-fully gear, follower wherein can be set to even number, and this follower I 2, follower II 3 are arranged at main wheel 1 arranged on left and right sides respectively and seal symmetrically for symmetric points are formed with main wheel 1 central point; Simultaneously, offer suction port I 8 successively respectively in the pump housing 12 outside, end face that suction port II 11 and two suction ports are separately positioned on the pump housing 12 both sides, the open and close realizing relief opening is rotated by follower, namely follower teeth groove is vented by the process implementation of relief opening, and teeth groove completes closing of gas by relying on gap with back front driven wheel disk;

Correspondingly, described main wheel 1 outward edge is with even number tooth, four can be set to and be respectively tooth I 4, tooth II 5, tooth III 6, tooth IV 7, simultaneously, the outward edge of each follower offer two teeth groove respectively and these two teeth groove on the same line, main wheel 1 radial forces that compression process produces can be cancelled out each other, thus greatly extends its bearing life;

Correspondingly, in rotary course, described main wheel 1 one teeth engage with a teeth groove of follower I 2, main wheel 1 one teeth engage with a teeth groove of follower II 3, as, when tooth II 5 engages with a teeth groove of follower II 3, then tooth IV 7 engages with a teeth groove of follower I 2, when tooth I 4 engages with a teeth groove of follower II 3, then tooth III 6 engages with a teeth groove of follower I 2.

Meanwhile, can by main wheel 1, follower I 2, follower II 3 and each take turns be adjusted to appropriate clearance between the pump housing 12, more respectively end face exhausting mouth I 13, end face exhausting mouth II 14 are set at the teeth groove end face of follower I 2, follower II 3 successively.

The above-mentioned description to embodiment can understand and apply this case technology for the ease of those skilled in the art, person skilled in the art obviously can make various amendment to these examples easily, and General Principle described herein is applied in other embodiment and need not through performing creative labour.Therefore, this case is not limited to above embodiment, and those skilled in the art is according to the announcement of this case, and the improvement made for this case and amendment all should in the protection domains of this case.

Claims

1. a Novel dry vacuum pump structure, comprise the main wheel (1) in the pump housing (12) and inner chamber thereof, follower I (2), follower II (3), follower I (2), follower II (3) are arranged at main wheel (1) arranged on left and right sides respectively, it is characterized in that:

Offer suction port I (8) successively respectively in the pump housing (12) outside, end face that suction port II (11) and two suction ports are separately positioned on the pump housing (12) both sides;

Described main wheel (1) outward edge arranges four teeth and is respectively tooth I (4), tooth II (5), tooth III (6), tooth IV (7), meanwhile, offers two teeth groove respectively at the outward edge of each follower;

Described main wheel (1) two teeth wherein engage with a teeth groove of follower I (2), a teeth groove of follower II (3) respectively;

The teeth groove end face of described follower I (2), follower II (3) arranges end face exhausting mouth I (13), end face exhausting mouth II (14) successively respectively.

2. Novel dry vacuum pump structure according to claim 1, is characterized in that: described main wheel (1), follower I (2) and follower II (3) are non-fully gear, and follower is set to even number.

3. Novel dry vacuum pump structure according to claim 1, it is characterized in that: described main wheel (1), follower I (2) or follower II (3) can change class 8 word special-shaped wheel into, can change the gear teeth, teeth groove mode, engagement system is identical.

4. Novel dry vacuum pump structure according to claim 1, it is characterized in that: after described main wheel (1) disk diameter diminishes that its tooth depth strains greatly mutually, follower diameter respective change ensures that two-wheeled does not contact and relies on slit seal, can rate of air sucked in required be increased; Main wheel (1) disk diameter becomes that large tooth depth correspondingly diminishes, follower diameter respective change ensures that two-wheeled does not contact and after relying on slit seal, can be used as the little rate of air sucked in required pump of high pressure and use.