CN218780486U - Shaft end seal for multi-stage rotor pump - Google Patents

Abstract

The utility model discloses a multistage rotor pump is with shaft end seal, including the transmission shaft, spacing dish passes through the screw fixation and is in transmission shaft one end, thread groove A has been seted up to spacing dish outer wall, thread groove A is provided with two sets of and symmetry setting in spacing dish both sides, thread groove A female connection has bolt A, spacing dish is inside to be pegged graft there is fixed cover, it has the laminating to fill up pad B in the transmission shaft outside to fix the intussuseption, spacing dish tip is pegged graft and is had the cladding cover, thread groove B has been seted up to cladding cover outer wall one end, thread groove B is provided with four groups and annular array and overlaps the outer wall at the cladding. The utility model discloses a set up sealed pad B and installation cladding cover, prevent that the material from leaking from the pivoted interaxial, influence multistage impeller pump normal operating, press from both sides tightly through sealed pad A, the sealed pad A of being convenient for carries out preliminary sealing to multistage impeller pump axle head, reduces the liquid medium and leaks the volume from the pivoted interaxial leakage.

Description

Shaft end seal for multi-stage rotor pump

Technical Field

The utility model relates to a sealed technical field of impeller pump, in particular to multistage for impeller pump axle head seal.

Background

The rotor pump is also called a colloid pump, a vane pump, a universal delivery pump and the like, and the rotor pump belongs to a displacement pump because the vane is shaped like a cam and is also called a cam pump; typically a double rotor. The rotor pump achieves the purpose of conveying fluid materials by means of periodic conversion of a plurality of fixed volume conveying units in a working cavity. Usually, a pair of synchronous gears are driven by a motor to drive a main shaft and an auxiliary shaft, and a double rotor synchronously rotates in the opposite direction under the driving of the main shaft and the auxiliary shaft respectively to change the volume of a pump, so that higher vacuum degree and discharge pressure are formed; the inlet is a low pressure region and the outlet is a high pressure region. The rotor pump is mainly used for conveying sanitary materials and corrosive and high-viscosity materials. The transported materials can be divided into sanitary materials and non-sanitary materials according to sanitary requirements, and the sanitary materials comprise: food and drink, fruit concentrate, cosmetics, drugs, and the like; the non-sanitary material is fluid material except sanitary material, mainly industrial product such as chemical industry and paper making and semi-finished product fluid material, including dye, fat, solvent, resin and polymer, paper pulp, etc. Parts in the rotor pump, which are contacted with conveyed materials, are generally made of stainless steel materials meeting sanitary standards, and sealing elements of the parts are made of non-toxic rubber; reliable rust resistance and non-toxic sealing performance ensure safety and sanitation.

Because the material need bear higher pressure at the pump output end when multistage impeller pump is worked, the material leaks from the pivoted interaxial very easily, and the fluid material leaks the back, influences multistage impeller pump normal operating, can lead to the impeller pump to damage when serious.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a multistage rotor pump is with axle head seal, through multiple sealed, has solved current multistage rotor pump during operation and has leaked from the pivoted interaxial easily, influences the problem of impeller pump normal operating, can effectively solve the problem in the background art.

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

the utility model provides a multistage for rotor pump axle head seal, includes the transmission shaft, and spacing dish passes through the screw fixation and is in transmission shaft one end, thread groove A has been seted up to spacing dish outer wall, thread groove A is provided with two sets of and symmetry setting in spacing dish both sides, thread groove A female connection has bolt A, the inside grafting of spacing dish has fixed cover, it has the sealed pad B of laminating in the transmission shaft outside to peg graft in the fixed cover, spacing dish tip is pegged graft and is had the cladding cover, cladding cover outer wall one end has seted up thread groove B, thread groove B is provided with four groups and annular array and overlaps the outer wall at the cladding, thread groove B female connection has bolt B and bolt B bottom threaded connection in the transmission shaft.

Furthermore, a containing cavity is formed in the covering sleeve, a sealing gasket A is inserted in the containing cavity, a thread groove C is formed in the other end of the outer wall of the covering sleeve, a bolt A is connected to the thread groove C in a threaded manner, and a groove for assembling the covering sleeve is formed in the limiting disc; through pressing from both sides tight sealed pad A, sealed pad A of being convenient for carries out preliminary sealing to the multistage impeller pump axle head, reduce the liquid medium and leak the leakage quantity from the pivoted interaxial, adjusting bolt A, bolt A rotates in thread groove A and inserts in thread groove C, bolt A is when rotating, fix a position the cladding cover, prevent that the cladding cover from removing, the cover is covered in the regulation, with the grafting of cladding cover in spacing dish department, promote the cladding cover again, make cladding cover one end laminating at spacing dish inner end face, recess and cladding cover adaptation, prevent that the liquid medium from flowing out from the gap.

Furthermore, fixing blocks are welded at the cavity openings of the containing cavities, and two groups of spring clamps are arranged and fastened on the side walls of the fixing blocks through screws; the fixed block that sets up carries on spacingly to the spring clamp, and the spring clamp presss from both sides tight sealed A of packing, prevents that sealed A of packing from holding the intracavity and droing.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses when using, adjust the cladding cover, plug-in the spacing dish department with the cladding cover, promote the cladding cover again, make cladding cover one end laminating terminal surface in spacing dish, recess and cladding cover adaptation, prevent that liquid medium from flowing from the gap, adjusting bolt A, bolt A rotates in thread groove A and plug in thread groove C, bolt A is when rotating, fix a position the cladding cover, prevent that the cladding cover from removing, the fixed cover that sets up protects sealed pad B, sealed pad B is the phenol-formaldehyde fiber and weaves the packings, the phenol-formaldehyde fiber weaves the packings has high temperature resistance, acid-resistant medium corrodes, adsorb, the heat-proof quality is good, the coefficient of friction is little, stand wear and tear, no pollution to human body and environment, through setting up sealed pad B and installation cladding cover, prevent that the material from leaking from the pivoted interaxial, influence multistage rotor pump normal operating.

2. The utility model discloses liquid impurity passes through the inside back of gap flow direction coating cover, liquid medium contacts to sealed pad A, sealed pad A is expansion rubber, its existing general rubber products's performance, again can meet the performance of water self-expansion, a novel waterproof material, the stagnant water, water-proof effects is more reliable than general rubber, the liquid medium that reduces the entering flows in spacing dish, the fixed block of setting carries on spacingly to the spring clamp, the spring clamp presss from both sides tight A of sealed pad, prevent sealed pad A from holding the intracavity and droing, through pressing from both sides tight A of sealed pad, it tentatively seals to the multistage rotor pump axle head to be convenient for sealed pad A, reduce liquid medium and leak the leakage volume from the pivoted interaxis.

Drawings

Fig. 1 is a front view of a shaft end seal for a multi-stage rotor pump according to the present invention;

fig. 2 is an expanded schematic view of the coating sleeve of the shaft end seal for the multi-stage rotor pump according to the present invention;

fig. 3 is the utility model discloses a shaft end seal's appearance chamber local expansion schematic diagram for multistage rotor pump.

In the figure: 1. a drive shaft; 2. a limiting disc; 3. a thread groove A; 4. a bolt A; 5. coating a sleeve; 6. a thread groove B; 7. a bolt B; 8. a thread groove C; 9. a cavity; 10. a gasket A; 11. a spring clip; 12. fixing a sleeve; 13. a gasket B; 14. a groove; 15. And (5) fixing blocks.

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. 1-3, a shaft end seal for a multistage rotor pump comprises a transmission shaft 1, a limiting disc 2 is fixed at one end of the transmission shaft 1 through screws, a thread groove A3 is formed in the outer wall of the limiting disc 2, the thread groove A3 is provided with two groups and symmetrically arranged on two sides of the limiting disc 2, a bolt A4 is connected to one end of the thread groove A3 in a threaded manner, a fixing sleeve 12 is inserted into the limiting disc 2, a sealing gasket B13 attached to the outer portion of the transmission shaft 1 is inserted into the fixing sleeve 12, a covering sleeve 5 is inserted into the end portion of the limiting disc 2, a thread groove B6 is formed in one end of the outer wall of the covering sleeve 5, the thread groove B6 is provided with four groups and an annular array is arranged on the outer wall of the covering sleeve 5, and a bolt B7 and the bottom of the bolt B7 are connected to the inner thread of the thread groove B6 in the transmission shaft 1.

The inner part of the covering sleeve 5 is provided with a containing cavity 9, a sealing gasket A10 is inserted in the containing cavity 9, the other end of the outer wall of the covering sleeve 5 is provided with a thread groove C8, a bolt A4 is connected to the thread groove C8 in a threaded manner, and a groove 14 for assembling the covering sleeve 5 is formed in the limiting disc 2; through pressing from both sides tight sealed pad A10, sealed pad A10 of being convenient for carries out preliminary sealing to multistage impeller pump axle head, reduce the liquid medium and leak the volume from the pivoted interaxial leakage, adjusting bolt A4, bolt A4 rotates in thread groove A3 and inserts in thread groove C8, bolt A4 is when rotating, fix a position covering cover 5, prevent that covering cover 5 from removing, adjust covering cover 5, to cover 5 pegs graft in spacing dish 2 department, promote covering cover 5 again, make covering cover 5 one end laminating at spacing dish 2 inner end face, recess 14 and covering cover 5 adaptation, prevent that liquid medium from flowing out from the gap.

The fixing blocks 15 are welded at the cavity openings of the accommodating cavities 9, and two groups of spring clamps 11 are arranged and fastened on the side walls of the fixing blocks 15 through screws; the fixed block 15 that sets up carries on spacingly to spring clamp 11, and spring clamp 11 presss from both sides tight sealed A10, prevents sealed A10 from droing from the intracavity 9.

It should be noted that, the utility model relates to a multistage for rotor pump axle head seal, when using, adjust cladding cover 5, peg graft cladding cover 5 in spacing dish 2 department, promote cladding cover 5 again, make cladding cover 5 one end laminating terminal surface in spacing dish 2, recess 14 and cladding cover 5 adaptation, prevent that liquid medium from flowing out from the gap, adjusting bolt A4, bolt A4 rotates in thread groove A3 and inserts in thread groove C8, bolt A4 is when rotating, fix a position cladding cover 5, prevent that cladding cover 5 from removing, fixed cover 12 that sets up protects sealed pad B13, sealed pad B13 is phenolic fiber woven sealing filler, phenolic fiber woven sealing filler has high temperature resistant, acid-resistant medium corrodes, absorption, the heat-proof quality is good, the coefficient of friction is little, stand wear and tear, no pollution to human body and environment, advantages such as low price, liquid impurity flows to cladding cover 5 inside through the gap after, liquid medium contacts to sealed pad A10, sealed pad A10 is the expansion rubber product, it can again, the performance of water-resistant rubber expansion is a novel spring that the water-proof clamp is more reliable than the interior waterproof clamp that comes into spacing dish is 10, it is more reliable to prevent to the waterproof spring from coming off to carry out, the waterproof clamp, the water-proof clamp is more.

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 (5)

1. The utility model provides a shaft end seal for multistage rotor pump, includes transmission shaft (1), its characterized in that, and spacing dish (2) pass through the fix with screw transmission shaft (1) one end, thread groove A (3) have been seted up to spacing dish (2) outer wall, thread groove A (3) are provided with two sets ofly and the symmetry sets up in spacing dish (2) both sides, thread groove A (3) female connection has bolt A (4), spacing dish (2) inside grafting has fixed cover (12), it has the laminating at the outside sealed pad B (13) of transmission shaft (1) to peg graft in fixed cover (12), spacing dish (2) tip is pegged graft and is had cladding cover (5), cladding cover (5) outer wall one end has been seted up thread groove B (6), thread groove B (6) are provided with four groups and annular array and overlap (5) outer wall in the cladding, thread groove B (6) female connection have bolt B (7) and bolt B (7) bottom threaded connection in transmission shaft (1).

2. The shaft end seal for a multi-stage rotor pump according to claim 1, wherein: the coating sleeve (5) is internally provided with a containing cavity (9), and a sealing gasket A (10) is inserted in the containing cavity (9).

3. A shaft end seal for a multi-stage rotary pump according to claim 1, wherein: the other end of the outer wall of the coating sleeve (5) is provided with a thread groove C (8), and a bolt A (4) is connected with the thread groove C (8) in an internal thread mode.

4. The shaft end seal for a multi-stage rotor pump according to claim 1, wherein: a groove (14) for assembling the covering sleeve (5) is formed in the limiting disc (2).

5. A shaft end seal for a multi-stage rotary pump according to claim 2, wherein: the fixing block (15) is welded at the cavity opening of the accommodating cavity (9), and two groups of spring clamps (11) are arranged and fastened on the side wall of the fixing block (15) through screws.

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