CN220036930U

CN220036930U - Gear pump sealing structure and gear pump

Info

Publication number: CN220036930U
Application number: CN202320539394.2U
Authority: CN
Inventors: 苏兰奎
Original assignee: Harbin Xinhua Aviation Industry Co ltd
Current assignee: Harbin Xinhua Aviation Industry Co ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-11-17
Anticipated expiration: 2033-03-20

Abstract

The utility model discloses a gear pump, which comprises a base and a sealing mechanism, wherein the sealing mechanism is arranged above the base, the sealing mechanism comprises a sealing plate which is bolted to one side of an inner cavity of a pump body, an outer sealing plate which is bolted to one end of the pump body, a sealing bearing, a sealing seat, a groove and an oil seal, the sealing bearing is respectively arranged at the upper part and the lower part of one side of the sealing plate, the sealing seat is sleeved on one side of the sealing bearing, and the groove is respectively arranged at the upper part and the lower part of one side of the sealing seat; according to the utility model, through the arrangement of the sealing mechanism, the condition of liquid leakage is conveniently arranged through the multiple sealing mechanisms, so that the working state of the sealing mechanism in high-speed operation is ensured, the problems in the background art are solved, the sealing plate, the sealing bearing and the sealing seat are utilized to realize internal sealing work, and the oil seal and the outer sealing plate are matched to realize internal and external connection double-stage sealing work, so that the integral sealing effect can be improved.

Description

Gear pump sealing structure and gear pump

Technical Field

The utility model relates to the technical field of gear pumps, in particular to a sealing structure of a gear pump and the gear pump.

Background

Gear pumps are rotary pumps that rely on the change and movement of working volume created between a pump cylinder and an intermeshing gear to deliver or pressurize a liquid. The existing gear pump sealing structure is not tight, so that the use effect of the gear pump is poor, the abrasion to the main shaft of the gear pump is serious for a long time, and the use requirement of people cannot be well met.

Aiming at the technical problems, for example, publication No. CN215256777U discloses a sealing structure of a gear pump and the gear pump, the first sealing ring is of a circular ring structure after being arranged, the first sealing ring is tightly attached to the inner wall of the concave area, the main shaft penetrates through the inside of the first sealing ring to be attached to the circumferential side wall of the main shaft, the sealing performance of the gear pump is improved, and meanwhile, the service effect and the service life of the gear pump are improved;

the above patent, although achieving the sealing effect, uses a part of elastic structure as an aid in the process of use because of its connection, so that it can cause elastic space, and when the pump works at high speed, leakage can occur, resulting in poor sealing effect.

Disclosure of Invention

The utility model aims to provide a sealing structure of a gear pump and the gear pump, which have the advantage of good sealing effect, so that the condition of liquid leakage is conveniently placed through a multiple sealing mechanism, the working state of the gear pump during high-speed operation is ensured, and the problems in the prior art are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the gear pump comprises a base and a sealing mechanism, wherein the sealing mechanism is arranged above the base and comprises a sealing plate bolted to one side of an inner cavity of a pump body and an outer sealing plate bolted to one end of the pump body;

the sealing device is characterized by further comprising a sealing bearing, a sealing seat, a groove and an oil seal, wherein the sealing bearing is respectively arranged on the upper part and the lower part of one side of the sealing plate, the sealing seat is sleeved on one side of the sealing bearing, the groove is respectively arranged on the upper part and the lower part of one side of the sealing seat, and the oil seal is attached to the other side of the sealing seat.

Preferably, the bottom of base is provided with antidetonation mechanism, antidetonation mechanism includes elastic component and coupling assembling, elastic component sets up in the bottom of base inner chamber, coupling assembling sets up in elastic component's bottom.

Preferably, the elastic component comprises a damper and a spring, the damper and the spring are respectively arranged around the bottom of the inner cavity of the base, and the damper is positioned in the inner cavity of the spring.

Preferably, the connecting assembly comprises a connecting seat and a bottom plate, wherein the connecting seat is arranged at one end of the damper, which is positioned on the spring, and the bottom plate is arranged at the bottom of the connecting seat.

The gear pump comprises the sealing structure, wherein the pump body mechanism is arranged at the top of the base and comprises a shell and a gear set, and the shell is arranged at the top of the base.

Preferably, the gear set comprises a driving gear and a driven gear, wherein the driving gear is movably arranged at the upper part of the inner cavity of the shell, and the driven gear is movably arranged at the lower part of the inner cavity of the shell.

Preferably, the driven gear is meshed with the driving gear, and the driving gear and the driven gear are arranged up and down.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the arrangement of the sealing mechanism, the condition of liquid leakage is conveniently arranged through the multiple sealing mechanisms, so that the working state of the sealing mechanism in high-speed operation is ensured, the problems in the background art are solved, the sealing plate, the sealing bearing and the sealing seat are utilized to realize internal sealing work, and the oil seal and the outer sealing plate are matched to realize internal and external connection double-stage sealing work, so that the integral sealing effect can be improved.

2. The vibration-resistant mechanism is convenient to realize the auxiliary supporting function on the pump body mechanism and has the advantages of buffering and damping, so that the problem that the joint of the pump is loosened due to large vibration force when the pump runs at high speed is avoided, and the functions of supporting and damping and buffering are realized by using the damper, the spring, the connecting seat and the bottom plate.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of an oil seal structure according to the present utility model;

FIG. 3 is a schematic view of a seal plate according to the present utility model;

FIG. 4 is a schematic view of the outer seal plate of the present utility model;

fig. 5 is a schematic view of the telescopic rod structure of the present utility model.

In the figure: 1. a base; 2. a sealing mechanism; 21. a sealing plate; 22. sealing the bearing; 23. a sealing seat; 24. a groove; 25. an oil seal; 26. an outer sealing plate; 3. a pump body mechanism; 31. a housing; 32. a drive gear; 33. a driven gear; 4. an anti-vibration mechanism; 41. a damper; 42. a spring; 43. a connecting seat; 44. a bottom plate.

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.

Referring to fig. 1 to 5, the present utility model provides a gear pump, which comprises a base 1 and a sealing mechanism 2, wherein the sealing mechanism 2 is arranged above the base 1, the sealing mechanism 2 comprises a sealing plate 21 bolted to one side of an inner cavity of a pump body and an outer sealing plate 26 bolted to one end of the pump body, and the sealing plate 21 is used for connection and installation when in primary bolting and close fitting;

the sealing device also comprises a sealing bearing 22, a sealing seat 23, a groove 24 and an oil seal 25, wherein the sealing bearing 22 is respectively arranged on the upper part and the lower part of one side of the sealing plate 21, the sealing seat 23 is sleeved on one side of the sealing bearing 22, the groove 24 is respectively arranged on the upper part and the lower part of one side of the sealing seat 23, and the oil seal 25 is attached to the other side of the sealing seat 23;

the sealing bearing 22 is beneficial to carrying out auxiliary sealing on the double shafts, the sealing seat 23 and the groove 24 formed in the sealing seat are convenient to achieve the effect of secondary sealing connection when the sealing bearing 22 and the sealing plate 21 are tightly attached, and finally the oil seal 25 is matched with an outer sealing plate 26 which is fastened by externally applying thrust to fasten the upper part, so that the sealing effect can be improved.

When the sealing plate 21 is installed, the sealing plate 21 is installed in advance, so that the sealing plate 21 is sleeved on the outer side of the double shaft of the pump, then the sealing plate 21 is closely attached to the inner wall of the double shaft, then the sealing plate 21 can be installed by fastening and installing the sealing plate by bolts, and as the sealing bearing 22 is installed on the upper part and the lower part of one side of the sealing plate 21, the double shaft penetrates through the sealing bearing 22 when the sealing plate 21 is installed, and the required sealing work and the sealing work are sequentially completed;

then, the sealing seat 23 is attached to the sealing plate 21, and the corresponding grooves 24 and bolt notches are formed in the attaching surface of the sealing seat 23, so that the bolts and the sealing bearings 22 are completely embedded in the attaching surface of the sealing seat 23, and the sealing plate 21 and the sealing seat 23 are tightly attached to each other, and at the moment, the secondary sealing work can be completed;

finally, the two groups of oil seals 25 are respectively sleeved outside the double shafts of the pump, and the outer sides of the laminating grooves 24 are respectively sleeved with the two groups of oil seals, then the outer sealing plate 26 is pushed to be attached to one end of the outer shell 31, as the convex plate is arranged at the attaching end of the outer sealing plate 26 of the outer shell 31 so as to be convenient for propping against the tight sealing seat 23, and the upper part and the lower part of the propping surface of the convex plate are respectively provided with the corresponding placing grooves so that the two groups of oil seals 25 are respectively embedded in the convex plate of the outer sealing plate 26, then the sealing installation work can be completed through the fastening installation of bolts, and the effect of three-level sealing is achieved.

Preferably, the bottom of base 1 is provided with antidetonation mechanism 4, and antidetonation mechanism 4 includes elastic component and coupling assembling, and elastic component sets up in the bottom of base 1 inner chamber, and coupling assembling sets up in elastic component's bottom, utilizes elastic component and coupling assembling to play elastic support and elasticity and damping cushioning's effect respectively, still can reach the support work to it simultaneously.

The elastic component comprises a damper 41 and a spring 42, wherein the damper 41 and the spring 42 are respectively arranged on the periphery of the bottom of the inner cavity of the base 1, the damper 41 is positioned in the inner cavity of the spring 42, and the damper 41 and the spring 42 are used for auxiliary support and can simultaneously realize elastic damping buffering.

Wherein, coupling assembling includes connecting seat 43 and bottom plate 44, and connecting seat 43 installs in the one end that damper 41 is located spring 42, and bottom plate 44 installs in the bottom of connecting seat 43, and connecting seat 43 and bottom plate 44 then do benefit to and reach auxiliary stay effect to in order to improve its area of earthing, so that it can stable support.

When the pump works, vibration is generated by the rotation force, so that the force can be released downwards, the damper 41 is sequentially extruded to be positioned in the inner cavity of the spring 42, the damper 41 can generate damping force and compression elasticity of the spring 42 when the pump is extruded, two groups of the damping spring dampers are matched, so that the damping and buffering effects can be realized, in addition, a buffer space exists between the shell 31 and the bottom plate 44 above by the connecting seat 43 connected with the bottom, the required effect is sequentially achieved, the bottom plate 44 can stably support the components on the upper part, the contact area is ensured, and the installation at the required position is facilitated.

The utility model provides a gear pump, includes foretell seal structure, and the top of base 1 is provided with pump body mechanism 3, and pump body mechanism 3 includes shell 31 and gear train, and shell 31 installs in the top of base 1, and shell 31 does benefit to the inside part of pump including driving gear 32 and driven gear 33 and protects and auxiliary stay is connected the effect.

Further, the gear set includes a driving gear 32 and a driven gear 33, the driving gear 32 is movably mounted on the upper portion of the inner cavity of the housing 31, the driven gear 33 is movably mounted on the lower portion of the inner cavity of the housing 31, and the driving gear 32 and the driven gear 33 are beneficial to playing a role in transmission, so that the operation of the pump is ensured.

The driven gear 33 is engaged with the driving gear 32, and the driving gear 32 and the driven gear 33 are disposed vertically.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A sealing structure, characterized in that: the sealing mechanism (2) is arranged above the base (1), and the sealing mechanism (2) comprises a sealing plate (21) which is bolted to one side of an inner cavity of the pump body and an outer sealing plate (26) which is bolted to one end of the pump body;

the sealing device is characterized by further comprising a sealing bearing (22), a sealing seat (23), a groove (24) and an oil seal (25), wherein the sealing bearing (22) is respectively arranged on the upper part and the lower part of one side of the sealing plate (21), the sealing seat (23) is sleeved on one side of the sealing bearing (22), the groove (24) is respectively arranged on the upper part and the lower part of one side of the sealing seat (23), and the oil seal (25) is attached to the other side of the sealing seat (23).

2. A sealing arrangement according to claim 1, wherein: the anti-vibration device is characterized in that an anti-vibration mechanism (4) is arranged at the bottom of the base (1), the anti-vibration mechanism (4) comprises an elastic component and a connecting component, the elastic component is arranged at the bottom of an inner cavity of the base (1), and the connecting component is arranged at the bottom of the elastic component.

3. A sealing arrangement according to claim 2, wherein: the elastic component comprises a damper (41) and a spring (42), wherein the damper (41) and the spring (42) are respectively arranged on the periphery of the bottom of the inner cavity of the base (1), and the damper (41) is positioned in the inner cavity of the spring (42).

4. A seal arrangement according to claim 3, wherein: the connecting assembly comprises a connecting seat (43) and a bottom plate (44), wherein the connecting seat (43) is arranged at one end of the damper (41) located on the spring (42), and the bottom plate (44) is arranged at the bottom of the connecting seat (43).

5. A gear pump, characterized by comprising the sealing structure according to any one of claims 1-4, wherein the top of the base (1) is provided with a pump body mechanism (3), the pump body mechanism (3) comprises a shell (31) and a gear set, and the shell (31) is mounted on the top of the base (1).

6. The gear pump of claim 5, wherein: the gear set comprises a driving gear (32) and a driven gear (33), wherein the driving gear (32) is movably arranged on the upper part of the inner cavity of the shell (31), and the driven gear (33) is movably arranged on the lower part of the inner cavity of the shell (31).

7. The gear pump of claim 6, wherein: the driven gear (33) is meshed with the driving gear (32), and the driving gear (32) and the driven gear (33) are arranged up and down.