CN219139343U

CN219139343U - CBUL helical gear low noise gear pump

Info

Publication number: CN219139343U
Application number: CN202222922946.6U
Authority: CN
Inventors: 张宝林; 沈勇; 周建; 刘欢
Original assignee: Huai'anwei Hydraulic Technology Co ltd
Current assignee: Huai'anwei Hydraulic Technology Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-06-06
Anticipated expiration: 2032-11-03

Abstract

The utility model relates to the technical field of gear pumps, in particular to a CBUL helical gear pump with low noise, which comprises a gear pump shell, wherein a front cover is fixedly arranged at the front end of the gear pump shell, an oil seal is arranged in the front cover, an oil outlet is formed in the front cover, a rear cover is fixedly arranged at the rear end of the gear pump shell, an oil inlet is formed in the rear cover, a driving helical gear is arranged in the gear pump shell, the driving helical gear is fixedly arranged on a gear shaft, a shaft sleeve is sleeved on the gear shaft and matched with the oil seal, the fixed installation of the front cover is realized through the matching of an elliptic bulge and a rotating wheel, the operation is simple and convenient, and when the front cover is installed, a connecting plugboard is only required to be inserted between the rotating wheel and the supporting limiting plate along the supporting limiting plate, and then a threaded connecting rod is rotated to drive a matching vertical plate to move, so that the transverse limiting plate is clamped at the lower end of the fixing plate to fix a connecting plugboard, and the fixed installation of the front cover is realized.

Description

CBUL helical gear low noise gear pump

Technical Field

The utility model relates to the technical field of gear pumps, in particular to a CBUL helical gear low-noise gear pump.

Background

Along with the demand of the indoor use working conditions of host computer customer at storage commodity circulation, market etc., the noise requirement to hydraulic system is higher and higher, the helical gear pump can satisfy the working condition requirement of hydraulic system requirement low noise, when its breakdown takes place for helical gear pump in the use, need open its protecgulum and carry out the inspection of inside spare part, or the oil blanket live time is long later receive wearing and tearing need change, all need open its protecgulum, and the protecgulum of gear pump is through bolt fastening on the gear pump shell, and in order to guarantee the fastness of protecgulum installation, all need beat certain moment, so just so make the installation and removal of protecgulum become comparatively troublesome, not only need use the tool to screw up and release of bolt one by one, but also need use great effort to screw up and release the bolt, need consume more time and seriously influence the maintenance of gear pump and the work efficiency that the oil blanket changed.

Disclosure of Invention

The utility model aims to provide a CBUL helical gear pump with low noise so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the CBUL helical gear low noise gear pump comprises a gear pump shell, the front end fixed mounting of gear pump shell has the protecgulum, the internally mounted of protecgulum has the oil blanket, and has seted up the oil-out on the protecgulum, and the rear end fixed mounting of gear pump shell has the back lid, the oil inlet has been seted up to the back lid, and the internally mounted of gear pump shell has initiative helical gear, initiative helical gear is fixed to be set up on the gear shaft, the axle sleeve has been cup jointed on the gear shaft, and the gear shaft cooperatees with the oil blanket, initiative helical gear meshing has driven helical gear, the bilateral symmetry welding of gear pump shell has the support limiting plate, the welding has the fixed plate on the gear pump shell of support limiting plate upside, the connecting hole has been seted up on the fixed plate, and the movable groove has been seted up to the one end of keeping away from the protecgulum on the fixed plate, the protecgulum is through the convenient safe dismouting of lid and is put fixed mounting on the gear pump shell.

Preferably, the two sides of the front cover are symmetrically welded with connecting plugboards, and elliptical bulges are fixedly arranged on the upper sides of the front ends of the connecting plugboards.

Preferably, the convenient safety device of lid includes connection inserted bar, threaded connection pole, cooperation riser, bearing and spring, the connection inserted bar is pegged graft in the connecting hole, and the upper end welding of connection inserted bar has the rectangle piece.

Preferably, the rectangular block is provided with a threaded through hole, the rectangular block is positioned on the upper side of the fixing plate, and the threaded through hole is internally connected with a threaded connecting rod in a threaded manner.

Preferably, the end part of the threaded connecting rod is sleeved with a bearing, the bearing is arranged on the matching vertical plate, the matching vertical plate is inserted into the moving groove, and the lower end of the matching vertical plate is welded with a transverse limiting plate.

Preferably, the lower extreme welding of connecting the inserted bar has the runner frame, install the runner on the runner frame, the runner is in the upside of connecting the picture peg, and contacts with the connection picture peg, has cup jointed the spring on the connecting the inserted bar, the spring is in the downside of fixed plate.

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

through the practicality of this technical scheme, realize the fixed mounting of protecgulum through the cooperation of oval arch and runner, easy operation is convenient, and when carrying out the installation of protecgulum, only need along support limiting plate peg graft the connection picture peg between runner and the support limiting plate can, then rotate the screw thread connecting rod make it drive the cooperation riser and remove for horizontal limiting plate card can realize the fixed of connecting the inserted bar in the lower extreme of fixed plate, and then realize the fixed mounting of protecgulum, need not use the instrument.

Drawings

FIG. 1 is an assembled schematic view of a helical gear pump as a whole.

Fig. 2 is an assembly schematic of the gear pump housing and the front cover.

Fig. 3 is an enlarged schematic view at a in fig. 2.

In the figure: 1. a gear pump housing; 11. supporting and limiting plates; 12. a fixing plate; 13. a connection hole; 14. a moving groove; 2. a front cover; 21. an oil outlet; 22. a connecting plugboard; 23. an elliptical protrusion; 3. an oil seal; 4. a rear cover; 41. an oil inlet; 5. a shaft sleeve; 6. a driving helical gear; 7. driven helical gears; 8. connecting the inserted link; 81. rectangular blocks; 82. a threaded through hole; 83. a threaded connecting rod; 84. a rotating wheel frame; 85. a rotating wheel; 9. a vertical plate is matched; 91. a bearing; 92. a transverse limiting plate; 10. and (3) a spring.

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 3, the present utility model provides a technical solution:

the CBUL helical gear low-noise gear pump comprises a gear pump shell 1, a front cover 2 is fixedly arranged at the front end of the gear pump shell 1, an oil seal 3 is arranged in the front cover 2, an oil outlet 21 is formed in the front cover 2, a rear cover 4 is fixedly arranged at the rear end of the gear pump shell 1, an oil inlet 41 is formed in the rear cover 4, a driving helical gear 6 is arranged in the gear pump shell 1, the driving helical gear 6 is fixedly arranged on a gear shaft, a shaft sleeve 5 is sleeved on the gear shaft and matched with the oil seal 3, a driven helical gear 7 is meshed with the driving helical gear 6, supporting limiting plates 11 are symmetrically welded on two sides of the gear pump shell 1, a fixing plate 12 is welded on the gear 1 on the upper side of the supporting limiting plates 11, a connecting hole 13 is formed in the fixing plate 12, a movable groove 14 is formed in one end far away from the front cover 2, a connecting plugboard 22 is symmetrically welded on two sides of the front cover 2, an elliptical boss 23 is fixedly arranged on the upper side of the front end of the connecting plugboard 22, and the surface of the elliptical boss 23 is smooth and burr-free.

The front cover 2 is fixedly installed on the gear pump housing 1 through a cover body convenient mounting and dismounting device, the cover body convenient mounting and dismounting device comprises a connecting inserted rod 8, a threaded connecting rod 83, a matching vertical plate 9, a bearing 91 and a spring 10, the connecting inserted rod 8 is inserted into a connecting hole 13, a rectangular block 81 is welded at the upper end of the connecting inserted rod 8, a threaded through hole 82 is formed in the rectangular block 81, the rectangular block 81 is located on the upper side of the fixed plate 12, and the threaded connecting rod 83 is connected with threads in the threaded through hole 82.

The end of the threaded connecting rod 83 is sleeved with a bearing 91, the bearing 91 is mounted on the matching vertical plate 9, namely, a bearing hole is formed in the matching vertical plate 9, the bearing 91 is mounted in the bearing hole, the matching vertical plate 9 is partially inserted into the moving groove 14, the lower end of the matching vertical plate 9 is welded with a transverse limiting plate 92, the width of the moving groove 14 is equal to that of the matching vertical plate 9, and the transverse limiting plate 92 is positioned on the lower side of the fixed plate 12.

The lower extreme welding of connection inserted bar 8 has runner frame 84, installs runner 85 on the runner frame 84, and runner 85 is in the upside of connection picture peg 22, and contacts with connection picture peg 22, has cup jointed spring 10 on the connection inserted bar 8, and spring 10 is in the downside of fixed plate 12, and the both ends of spring 10 weld respectively in the downside of fixed plate 12 and the upper end of runner frame 84.

When the front cover 2 is installed, the connecting plugboard 22 is lapped on the supporting limiting plate 11, then the front cover 2 is pushed towards the direction of the rotating wheel 85, when the elliptical bulge 23 on the connecting plugboard 22 is contacted with the rotating wheel 85, the rotating wheel 85 can not move upwards under the action of the elliptical bulge 23, the elliptical bulge 23 can smoothly pass through the rotating wheel 85, then falls downwards to be contacted with the connecting plugboard 22, at the moment, the threaded connecting rod 83 is rotated to drive the matching vertical plate 9 to move towards the direction close to the rectangular block 81 under the action of threads until the end face close to the rectangular block 81 on the matching vertical plate 9 is contacted with the groove wall of the moving groove 14, at the moment, the transverse limiting plate 92 completely moves to the lower end of the fixed plate 12, and the upper end face of the transverse limiting plate is contacted with the lower end face of the fixed plate 12, so that the connecting plugbar 8 can not move upwards, the elliptical bulge 23 can not pass through the rotating wheel 85, the fixed installation of the front cover 2 is realized, when the front cover 2 is dismounted, the threaded connecting rod 83 is reversely rotated to drive the matching vertical plate 9 to reversely move towards the direction, the end face close to the rectangular block 81 is not to the fixed end of the fixed plate 12, and the elliptical bulge 2 can be smoothly moved towards the lower end of the rotating wheel 85.

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

CBUL helical gear low noise gear pump, including gear pump casing (1), the front end fixed mounting of gear pump casing (1) has protecgulum (2), the internally mounted of protecgulum (2) has oil blanket (3), and has seted up oil-out (21) on protecgulum (2), and the rear end fixed mounting of gear pump casing (1) has back lid (4), oil inlet (41) have been seted up on back lid (4), its characterized in that: the internally mounted of gear pump casing (1) has initiative helical gear (6), initiative helical gear (6) is fixed to be set up on the gear shaft, sleeve (5) have been cup jointed on the gear shaft, and gear shaft and oil blanket (3) cooperate, initiative helical gear (6) meshing has driven helical gear (7), the bilateral symmetry welding of gear pump casing (1) has support limiting plate (11), the welding has fixed plate (12) on gear pump casing (1) of support limiting plate (11) upside, connecting hole (13) have been seted up on fixed plate (12), and fixed plate (12) are gone up and are kept away from one end of protecgulum (2) and have been offered removal groove (14), protecgulum (2) are installed fixed mounting on gear pump casing (1) through the convenient safety of lid.
2. The CBUL helical gear low noise gear pump of claim 1, wherein: the two sides of the front cover (2) are symmetrically welded with connecting plugboards (22), and elliptical bulges (23) are fixedly arranged on the upper sides of the front ends of the connecting plugboards (22).
3. The CBUL helical gear low noise gear pump of claim 1, wherein: the convenient mounting and dismounting device for the cover body comprises a connecting inserted rod (8), a threaded connecting rod (83), a matching vertical plate (9), a bearing (91) and a spring (10), wherein the connecting inserted rod (8) is inserted into a connecting hole (13), and a rectangular block (81) is welded at the upper end of the connecting inserted rod (8).
4. The CBUL helical gear low noise gear pump according to claim 3, characterized in that: threaded through holes (82) are formed in the rectangular blocks (81), the rectangular blocks (81) are located on the upper side of the fixing plate (12), and threaded connecting rods (83) are connected in the threaded through holes (82) in a threaded mode.
5. The CBUL helical gear low noise gear pump of claim 4, wherein: the end of the threaded connecting rod (83) is sleeved with a bearing (91), the bearing (91) is mounted on the matching vertical plate (9), the matching vertical plate (9) is partially inserted into the moving groove (14), and the lower end of the matching vertical plate (9) is welded with a transverse limiting plate (92).
6. The CBUL helical gear low noise gear pump according to claim 3, characterized in that: the lower extreme welding of connecting inserted bar (8) has runner frame (84), install runner (85) on runner frame (84), runner (85) are in the upside of connecting picture peg (22), and contact with connecting picture peg (22), have cup jointed spring (10) on connecting inserted bar (8), spring (10) are in the downside of fixed plate (12).