CN209892443U

CN209892443U - Energy-saving variable speed pump

Info

Publication number: CN209892443U
Application number: CN201920610791.8U
Authority: CN
Inventors: 周海林; 刘园; 杨华
Original assignee: JIANGXI HYDRAULIC PIECES Ltd
Current assignee: JIANGXI HYDRAULIC PIECES Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-01-03
Anticipated expiration: 2029-04-30

Abstract

The utility model provides an energy-saving variable speed pump, which comprises a first shell and a second shell, wherein the first shell and the second shell are fixedly connected through bolts and internally form a cavity; the first shell is provided with a through hole, the outer side of the through hole is provided with a compensation mechanism, the compensation mechanism comprises a barrel body, the open opening of the barrel body corresponds to the through hole, and the barrel body is fixedly connected with the outer wall of the first shell through a screw; a frame plate is arranged in the barrel body, a first nut is arranged in the middle of the frame plate, a second nut is arranged on the end face of the barrel body, a threaded rod penetrates through the space between the first nut and the second nut, the top end of the threaded rod is located on the outer side of the barrel body, the bottom end of the threaded rod is located in the barrel body, a piston is arranged at the bottom end of the threaded rod, and the piston is in a columnar structure and is matched with the shape of the; the oil pressure space in the variable speed pump can be adjusted through an additional mechanism, so that the pressure in the variable speed pump is in a normal use range, the problem that the space in the variable speed pump is large due to friction is solved, the service life of the variable speed pump is prolonged, and the cost is reduced.

Description

Energy-saving variable speed pump

Technical Field

The utility model relates to a variable speed pump field, more specifically relates to an energy-conserving variable speed pump.

Background

The variable speed pump is an oil pump installed on a loader gearbox, provides gear pressure oil and pitch device oil for the gearbox, and after the variable speed pump is used for a long time, gears in the variable speed pump can wear a shell on the side face of the variable speed pump, so that a sealing gap in the variable speed pump is enlarged, the internal pressure is reduced, the variable speed pump loses the use value, the service life is short, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to solve the technical problem of providing an energy-saving variable speed pump, its simple structure, accessible additional mechanism is adjusted the inside oil pressure space of variable speed pump, makes the inside pressure of variable speed pump be in normal application range, overcomes the problem that the pump internal space that causes because of the friction is big, prolongs the life of variable speed pump, reduce cost.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an energy-saving variable speed pump, which comprises a shell, wherein the shell comprises a first shell and a second shell, the second shell is provided with an oil inlet and an oil outlet, the first shell and the second shell are fixedly connected through bolts and internally form a cavity, the first shell is provided with two first bearing installation positions, the second shell is provided with a second bearing installation position and a third bearing installation position which respectively correspond to the two first bearing installation positions, the first bearing installation position, the second bearing installation position and the third bearing installation position are internally and fixedly provided with bearings, wherein the end surface of the second bearing installation position far away from the cavity is open, the end cover is provided with an end cover, the cavity is internally provided with a first gear and a second gear which are mutually meshed, the first gear is arranged between the first bearing installation position and the bearing of the third bearing installation position through a support shaft rotating frame, the second gear is rotatably erected between the bearings of the first bearing mounting position and the second bearing mounting position through a support shaft, and one end of the support shaft on the second gear movably penetrates through the end cover;

the first shell is provided with a through hole, the outer side of the through hole is provided with a compensation mechanism, the compensation mechanism comprises a barrel body, an open opening of the barrel body corresponds to the through hole, the diameter of the through hole is larger than or equal to the inner diameter of the barrel body, and the barrel body is fixedly connected with the outer wall of the first shell through a screw; the fixed frame plate that spanes of staving that is equipped with in the staving, the middle part of frame plate is equipped with first nut, the outer terminal surface of staving is equipped with the second nut, first nut reaches the second nut position is corresponding, and the structure is the same, first nut with wear to be equipped with the threaded rod between the second nut, the top of threaded rod is located staving outside, bottom are located in the staving, the tip fixedly connected with piston of threaded rod bottom, the piston is located the below of frame plate, the piston be columnar structure, and with staving inner wall shape looks adaptation.

The utility model discloses among the technical scheme of preferred, the piston includes the cock body of columnar structure and inlays to be located a plurality of sealing rings of cock body outer wall, the sealing ring is followed the even interval of axis of cock body sets up, the sealing ring is kept away from the outer wall of the axis of cock body is outer convex cambered surface form.

In the preferred technical scheme of the utility model, the outer wall of one end of the opening of the barrel body is provided with a flanging, the flanging is arranged along the edge of the opening of the barrel body in a ring shape, and the barrel body is fixedly connected with the first shell through a screw penetrating through the flanging; and a sealing ring is embedded in the bottom surface of the flanging.

The utility model discloses in the technical scheme of preferred, the end cover with the outer wall threaded connection of second bearing installation position, be equipped with the oil blanket on the bearing in the second bearing installation position, just the oil blanket is located and is close to one side of end cover.

The utility model has the advantages that:

the utility model provides an energy-conserving variable speed pump, its simple structure, the setting of compensation mechanism can be adjusted the oil pressure space in the variable speed pump, makes the pressure in the variable speed pump be in normal application range, overcomes the problem that the pump space becomes big because of the friction causes, prolongs the life of variable speed pump, reduce cost; and the compensation mechanism is composed of a barrel body, a threaded rod and a piston, the piston can be moved by simply rotating the threaded rod, the whole mechanism is simple, the operation is convenient, and the compensation of the oil pressure space in the pump can be conveniently carried out in the actual use process.

Drawings

Fig. 1 is a schematic structural view of an energy-saving variable speed pump provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a compensation mechanism provided in an embodiment of the present invention.

In the figure:

100. a first housing; 110. a first bearing mounting location; 120. a through hole; 200. a second housing; 210. a second bearing mounting location; 220. a third bearing mounting location; 230. an end cap; 240. oil sealing; 300. a cavity; 310. a first gear; 320. a second gear; 400. a compensation mechanism; 410. a barrel body; 420. a frame plate; 430. a first nut; 440. a second nut; 450. a threaded rod; 460. a piston; 461. a plug body; 462. a seal ring; 480. flanging; 490. and (5) sealing rings.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the embodiment of the present invention discloses an energy-saving variable speed pump, which comprises a housing, wherein the housing comprises a first housing 100 and a second housing 200, the second housing 200 is provided with an oil inlet and an oil outlet, the first housing 100 and the second housing 200 are fixedly connected by bolts and form a cavity 300 inside, the first housing 100 is provided with two first bearing installation positions 110, the second housing 200 is provided with a second bearing installation position 210 and a third bearing installation position 220 corresponding to the two first bearing installation positions 110, bearings are fixedly installed in the first bearing installation position 110, the second bearing installation position 210 and the third bearing installation position 220, wherein the end face of the second bearing installation position 210 far away from the cavity 300 is open and is provided with an end cover 230, a first gear 310 and a second gear 320 which are engaged with each other are arranged in the cavity 300, the first gear 310 is rotatably mounted between the bearings of the first bearing mounting location 110 and the third bearing mounting location 220 through a support shaft, the second gear 320 is rotatably mounted between the bearings of the first bearing mounting location 110 and the second bearing mounting location 210 through a support shaft, and one end of the support shaft on the second gear 320 movably penetrates through the end cap 230;

the first shell 100 is provided with a through hole 120, a compensation mechanism 400 is arranged outside the through hole 120, the compensation mechanism 400 comprises a barrel body 410, an open opening of the barrel body 410 corresponds to the through hole 120, the diameter of the through hole 120 is larger than or equal to the inner diameter of the barrel body 410, and the barrel body 410 is fixedly connected with the outer wall of the first shell 100 through screws; a frame plate 420 spanning the barrel body 410 is fixedly arranged in the barrel body 410, a first nut 430 is arranged in the middle of the frame plate 420, a second nut 440 is arranged on the outer end face of the barrel body 410, the first nut 430 and the second nut 440 correspond in position and have the same structure, a threaded rod 450 penetrates between the first nut 430 and the second nut 440, the top end of the threaded rod 450 is located on the outer side of the barrel body 410, the bottom end of the threaded rod 450 is located in the barrel body 410, a piston 460 is fixedly connected to the end portion of the bottom end of the threaded rod 450, the piston 460 is located below the frame plate 420, and the piston 460 is in a columnar structure and is matched with the shape of the inner wall of the barrel body 410.

The energy-saving variable speed pump is simple in structure, the arrangement of the compensation mechanism 400 can adjust the oil pressure space in the variable speed pump, so that the pressure in the variable speed pump is in a normal use range, the problem that the space in the variable speed pump is large due to friction is solved, the service life of the variable speed pump is prolonged, and the cost is reduced; the compensation mechanism 400 mainly comprises a barrel body 410, a threaded rod 450 and a piston 460, the piston 460 can be moved by simply rotating the threaded rod 450, the whole mechanism is simple, the operation is convenient, and the compensation of the oil pressure space in the pump in actual use can be conveniently carried out; when the pressure supply of the variable speed pump is insufficient, the compensation mechanism 400 can be adjusted in an attempt to enter the shell by rotating the threaded rod 450 and pushing the piston 460, so that the oil pressure space in the shell is changed, and the oil pressure in the shell is enhanced; it should be noted that the travel of the piston 460 is less than the length of the piston 460 itself.

Further, the piston 460 includes a plug body 461 with a columnar structure, and a plurality of sealing rings 462 embedded in an outer wall of the plug body 461, the sealing rings 462 are uniformly arranged along an axis of the plug body 461 at intervals, and an outer wall of the sealing ring 462 away from the axis of the plug body 461 is in an outer convex arc surface shape; the structural design can ensure the sealing performance of the piston 460 and the barrel body 410, on one hand, high-pressure oil can be prevented from seeping out from a gap between the piston 460 and the barrel body 410, and on the other hand, the sealing performance of the inner space of the shell can be ensured, and the pressure of the inner space can be ensured.

Further, a flange 480 is arranged on the outer wall of one end of the opening of the barrel body 410, the flange 480 is arranged in a ring shape along the edge of the opening of the barrel body 410, and the barrel body 410 is fixedly connected with the first shell 100 through a screw penetrating through the flange 480; a sealing ring 490 is embedded in the bottom surface of the flanging 480; the structural design can enhance the connection between the barrel body 410 and the outer shell on one hand, and can further enhance the sealing performance at the connection between the barrel body 410 and the outer shell on the other hand.

Further, the end cover 230 is in threaded connection with the outer wall of the second bearing installation position 210, an oil seal 240 is arranged on a bearing in the second bearing installation position 210, and the oil seal 240 is located on one side close to the end cover 230; the structural design can strengthen the structural sealing property of the second bearing mounting position 210, further improve the sealing performance of the whole structure and reduce the influence factors of the air pressure change in the shell.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. An energy-conserving variable speed pump, includes the shell, its characterized in that:

the shell comprises a first shell (100) and a second shell (200), an oil inlet and an oil outlet are arranged on the second shell (200), the first shell (100) and the second shell (200) are fixedly connected through bolts and form a cavity (300) inside, two first bearing mounting positions (110) are arranged on the first shell (100), a second bearing mounting position (210) and a third bearing mounting position (220) which respectively correspond to the two first bearing mounting positions (110) are arranged on the second shell (200), bearings are fixedly mounted in the first bearing mounting position (110), the second bearing mounting position (210) and the third bearing mounting position (220), the end face of the second bearing mounting position (210) far away from the cavity (300) is open, an end cover (230) is arranged at the end part, a first gear (310) and a second gear (320) which are meshed with each other are arranged in the cavity (300), the first gear (310) is rotatably erected between the bearings of the first bearing mounting position (110) and the third bearing mounting position (220) through a support shaft, the second gear (320) is rotatably erected between the bearings of the first bearing mounting position (110) and the second bearing mounting position (210) through a support shaft, and one end of the support shaft on the second gear (320) movably penetrates through the end cover (230);

a through hole (120) is formed in the first shell (100), a compensation mechanism (400) is arranged on the outer side of the through hole (120), the compensation mechanism (400) comprises a barrel body (410), an open opening of the barrel body (410) corresponds to the position of the through hole (120), the diameter of the through hole (120) is larger than or equal to the inner diameter of the barrel body (410), and the barrel body (410) is fixedly connected with the outer wall of the first shell (100) through a screw; staving (410) internal fixation is equipped with and crosses shelf (420) of staving (410), the middle part of shelf (420) is equipped with first nut (430), the outer terminal surface of staving (410) is equipped with second nut (440), first nut (430) and second nut (440) position is corresponding, and the structure is the same, first nut (430) with wear to be equipped with threaded rod (450) between second nut (440), the top of threaded rod (450) is located staving (410) outside, bottom are located in staving (410), the tip fixedly connected with piston (460) of threaded rod (450) bottom, piston (460) are located the below of shelf (420), piston (460) are the columnar structure, and with staving (410) inner wall shape looks adaptation.

2. An energy efficient variable speed pump as claimed in claim 1, wherein:

the piston (460) comprises a plug body (461) with a columnar structure and a plurality of sealing rings (462) embedded on the outer wall of the plug body (461), the sealing rings (462) are uniformly arranged at intervals along the axis of the plug body (461), and the outer wall of the sealing ring (462) far away from the axis of the plug body (461) is in an outer convex arc surface shape.

3. An energy efficient variable speed pump as claimed in claim 1, wherein:

a flange (480) is arranged on the outer wall of one end of the opening of the barrel body (410), the flange (480) is arranged in a ring shape along the edge of the opening of the barrel body (410), and the barrel body (410) is fixedly connected with the first shell (100) through a screw penetrating through the flange (480); and a sealing ring (490) is embedded in the bottom surface of the flanging (480).

4. An energy efficient variable speed pump as claimed in claim 1, wherein:

the end cover (230) is in threaded connection with the outer wall of the second bearing mounting position (210), an oil seal (240) is arranged on a bearing in the second bearing mounting position (210), and the oil seal (240) is located on one side close to the end cover (230).