CN210239983U

CN210239983U - Gear pump

Info

Publication number: CN210239983U
Application number: CN201921097774.5U
Authority: CN
Inventors: Huanhuan Xiong; 熊欢欢
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-04-03
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses a gear pump, its structure includes the motor, a pedestal, a housing, a water inlet pipe, water outlet pipe way, an output shaft, the driving shaft, a bearing, the driving gear, driven gear and driven shaft, the pulley has been set up on the latch in the outside on the driving gear of gear pump and driven gear, and set up the spout in the casing, avoid the formation vacancy of the pulley left and right sides, be provided with sealed the pad on the inside latch of pulley, seal between pulley and the latch, and make the pulley rotate, when the gear pump functions, driving gear and driven gear rotate, the pulley slides along the inside spout of casing, reached and reduced the friction of driving gear and driven gear and casing, avoid appearing the gap between gear and the casing and cause the output pressure to reduce, and then increased the beneficial effect of the life of gear pump.

Description

Gear pump

Technical Field

The utility model relates to a gear pump technical field, concretely relates to gear pump.

Background

The gear pump mainly comprises a pair of gears arranged in a pump body, and because a gear pump shell and a gear end face are positioned on the same plane, when the gear pump is in normal use, due to the friction of gear rotation, the abrasion of the shell and the gear end face is caused, so that a gap gradually appears between the gear end face and the shell, and along with the increase of the gap, the leakage appears inside the pump body, thereby reducing the output pressure of the gear pump, reducing the flow, not only influencing the working efficiency of the gear pump, but also greatly shortening the service life of the gear pump.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the gear pump is provided, and the problem is solved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a gear pump, including motor, base, casing, water intake pipe, outlet pipe way, output shaft, driving shaft, bearing, driving gear, driven gear and driven shaft, the motor right-hand member carries out the lock solid with the casing and is connected, motor and casing bottom all carry out bolted connection with the base, the middle part of both sides around the casing all is provided with a screw hole, and this screw hole carries out threaded connection with water intake pipe and outlet pipe way respectively, motor right-hand member centre of a circle department is provided with an output shaft, and this output shaft runs through the casing and is connected with the driving shaft is rotated, the driving shaft runs through driving gear centre of a circle department, and is connected with the driving gear is rotated, the driving shaft right-hand member pegs graft with bearing centre of a circle department, the driven shaft runs through driven gear centre of a circle department, and the, the driving gear bottom and driven gear meshing, the driving gear comprises toothed disc, latch, recess, sealed pad, axis of rotation, pulley, spout and jack, the toothed disc outside evenly is provided with the latch, the inside recess that all is provided with in the latch outside, the embedding of recess bottom middle part has sealed pad, the axis of rotation runs through pulley centre of a circle department, and both ends rotate with the recess department in the latch respectively around the axis of rotation and be connected, the casing inboard is provided with the spout, and the pulley outside laminates with the spout, the gear disc centre of a circle department is provided with a jack, and the driving shaft runs through this jack and is connected with the toothed disc rotates.

Furthermore, an oil seal table is arranged at the joint of the output shaft and the shell.

Furthermore, the driving gear and the driven gear are the same in structure, size and shape.

Furthermore, the inside word form that is of casing, and the pulley outside sets up and laminates with the casing.

Further, the surface of the pulley is smooth.

Furthermore, the top end of the sealing gasket is in a semicircular arc shape and is attached to the bottom end of the pulley.

Furthermore, the sliding grooves are distributed along the inner walls of the upper end and the lower end of the inner part of the shell.

Furthermore, the sealing gasket is made of butadiene-acrylonitrile rubber.

Furthermore, the rotating shaft and the pulley are made of stainless steel.

(III) advantageous effects

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

1) in order to solve the problem that the gear pump in the prior art gradually generates a gap between the end face of the gear and the shell due to the friction between the gear and the shell, thereby reducing the output pressure of the gear pump, reducing the flow rate and reducing the service life, the pulleys are arranged on the latch teeth on the outer sides of the driving gear and the driven gear of the gear pump, the sliding groove is arranged in the shell, the left side and the right side of the pulley are prevented from forming a gap, the latch teeth in the pulley are provided with the sealing gasket, seal between pulley and the latch, and make the pulley rotate, when the gear pump functions, driving gear and driven gear rotate, and the pulley slides along the inside spout of casing, has reached the friction that reduces driving gear and driven gear and casing, avoids appearing the gap between gear and the casing and causes output pressure to reduce, and then has increased the beneficial effect of the life of gear pump.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the housing of the present invention;

fig. 3 is a side view of the internal structure of the housing of the present invention;

FIG. 4 is a partial enlarged view of area A of the present invention;

fig. 5 is a schematic view of the latch structure of the present invention.

In the figure: the water-saving device comprises a motor-1, a base-2, a shell-3, a water inlet pipeline-4, a water outlet pipeline-5, an output shaft-6, a driving shaft-7, a bearing-8, a driving gear-9, a driven gear-10, a driven shaft-11, a gear disc-91, a latch-92, a groove-93, a sealing gasket-94, a rotating shaft-95, a pulley-96, a chute-97 and an insertion hole-98.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides a gear pump: comprises a motor 1, a base 2, a shell 3, a water inlet pipeline 4, a water outlet pipeline 5, an output shaft 6, a driving shaft 7, a bearing 8, a driving gear 9, a driven gear 10 and a driven shaft 11, wherein the right end of the motor 1 is locked and connected with the shell 3, the bottom ends of the motor 1 and the shell 3 are both connected with the base 2 through bolts, the middle parts of the front side and the back side of the shell 3 are respectively provided with a threaded hole which is respectively in threaded connection with the water inlet pipeline 4 and the water outlet pipeline 5, the center of the circle of the right end of the motor 1 is provided with the output shaft 6, the output shaft 6 penetrates through the shell 3 to be rotationally connected with the driving shaft 7, the driving shaft 7 penetrates through the center of the circle of the driving gear 9 and is rotationally connected with the driving gear 9, the right end of the driving shaft 7 is inserted and connected with, the driving gear 9 bottom and driven gear 10 meshing, the driving gear 9 is by gear plate 91, latch 92, recess 93, sealed pad 94, axis of rotation 95, pulley 96, spout 97 and jack 98 are constituteed, the gear plate 91 outside evenly is provided with latch 92, the inside recess 93 that all is provided with in the latch 92 outside, the embedding of recess 93 bottom middle part has sealed pad 94, axis of rotation 95 runs through pulley 96 centre of a circle department, and both ends rotate with the recess 93 department in the latch 92 respectively around the axis of rotation 95 and be connected, 3 inboards of casing are provided with spout 97, and the laminating of the pulley 96 outside and spout 97, gear plate 91 centre of a circle department is provided with a jack 98, and driving shaft 7 runs through this jack 98 and is connected with gear plate 91 rotates.

Wherein, the junction of output shaft 6 and casing 3 is provided with the oil blanket platform, is favorable to laminating between casing 3 and the output shaft 6, has guaranteed casing 3's leakproofness.

The driving gear 9 and the driven gear 10 are identical in structure, size and shape, and water flow is driven to be transmitted when the driving gear 9 and the driven gear 10 rotate.

Wherein, casing 3 is inside to be 8 words form, and the pulley 96 outside sets up and laminates with casing 3, is favorable to guaranteeing the laminating between driving gear 9 and the casing 3, has guaranteed the transmission speed of water.

Wherein, the surface of the pulley 96 is smooth, which is beneficial to the rolling between the pulley 96 and the shell 3.

The top end of the sealing gasket 94 is in a semicircular arc shape and is attached to the bottom end of the pulley 96, so that the sealing between the pulley 96 and the latch 92 is facilitated.

Wherein, the inner wall at both ends distributes about spout 97 is inside along casing 3, is favorable to pulley 96 and casing 3 inner wall on driving gear 9 and the driven gear 10 to laminate, and fills the vacancy part of the pulley 96 left and right sides, has avoided the partial water conservancy diversion condition, has guaranteed the transmission speed of gear pump.

The sealing gasket 94 is made of nitrile rubber, has good sealing performance, is pulled strongly and is not easy to damage.

The rotating shaft 95 and the pulley 96 are made of stainless steel, so that the hardness is high, the damage is not easy to occur, and the rust is not easy to occur.

According to last notice the utility model discloses axis of rotation 95 and pulley 96's material all adopts the stainless steel, has the hardness height, not fragile advantage.

The material of the sealing gasket 94 in this patent is butadiene acrylonitrile rubber, which is a synthetic rubber and is a copolymer polymerized by acrylonitrile and butadiene monomers, and has the advantages of good oil resistance, especially paraffin oil, high wear resistance, good air tightness, good heat resistance, strong bonding force, good aging resistance and the like.

The working principle is as follows: before use, the gear pump is firstly fixed on a position required by a user through a base 2, then a motor 1 is connected with an external control upper device, a water inlet pipeline 4 and a water outlet pipeline 5 are respectively connected with an external water supply pipeline and a conveying pipeline, when the gear pump is used, power is supplied and a control instruction is sent through the external control device, the motor 1 is controlled to generate power to drive the circle center of a driving shaft 7 to rotate anticlockwise through an output shaft 6, the right end of the driving shaft 7 is supported through a bearing 8 and is rotationally connected with a shell 3, the driving shaft 7 rotates to drive the circle center of a driving gear 9 to rotate anticlockwise, the driving gear 9 rotates anticlockwise to drive the outer side of a driven gear 10 to rotate clockwise, the circle center of the driven gear 10 is rotationally connected with the shell 3 through a driven shaft 11, the water inlet end of the water inlet pipeline 4 is positioned, the space is filled with the conveying object, the conveying object finally outputs the conveying object at the water outlet pipeline 5 at the joint of the front ends of the driving gear 9 and the driven gear 10 along the rotation of the driving gear 9 and the driven gear 10, the pulley 96 is arranged on the latch 92 on the outer side of the driving gear 9 and the driven gear 10, the sliding groove 97 is arranged in the shell 3, when the driving gear 9 and the driven gear 10 rotate, the pulley 96 slides along the sliding groove 97 in the shell 3, the sealing gasket 94 is arranged in the groove 93 on the outer side of the latch 92, the top end of the sealing gasket 94 is in a semi-circular arc shape and is attached to the bottom end of the pulley 96, the pulley 96 and the latch 92 are sealed, the friction between the driving gear 9 and the driven gear 10 and the shell 3 is reduced, the phenomenon that gaps are easily formed between the driving gear 9 and the driven gear 10 and the shell 3 due to the large friction force is, thereby increasing the service life of the gear pump.

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 evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A gear pump comprises a motor (1), a base (2), a shell (3), a water inlet pipeline (4), a water outlet pipeline (5), an output shaft (6), a driving shaft (7), a bearing (8) and a driven shaft (11), wherein the right end of the motor (1) is in locking connection with the shell (3), the bottom ends of the motor (1) and the shell (3) are in bolt connection with the base (2), the middle parts of the front side and the rear side of the shell (3) are respectively provided with a threaded hole which is in threaded connection with the water inlet pipeline (4) and the water outlet pipeline (5), the center of a circle of the right end of the motor (1) is provided with the output shaft (6), the output shaft (6) penetrates through the shell (3) to be in rotating connection with the driving shaft (7), the driving shaft (7) penetrates through the center of the driving gear (9) and is in rotating connection with the driving, the right end of the driving shaft (7) is inserted into the circle center of the bearing (8), the driven shaft (11) penetrates through the circle center of the driven gear (10), and the left side and the right side of the driven shaft (11) are rotatably connected with the shell (3) through bearing seats;

the method is characterized in that: the gear disc is characterized by further comprising a driving gear (9) and a driven gear (10), the bottom end of the driving gear (9) is meshed with the driven gear (10), the driving gear (9) is composed of a gear disc (91), a latch (92), a groove (93), a sealing gasket (94), a rotating shaft (95), a pulley (96), a sliding groove (97) and a jack (98), the latch (92) is evenly arranged on the outer side of the gear disc (91), the groove (93) is formed in the outer side of the latch (92), the sealing gasket (94) is embedded into the middle of the bottom end of the groove (93), the rotating shaft (95) penetrates through the circle center of the pulley (96), the front end and the rear end of the rotating shaft (95) are respectively in rotating connection with the groove (93) in the latch (92), the sliding groove (97) is formed in the inner side of the shell (3), the outer side of the pulley (96) is attached to the sliding groove (97), and the, and the driving shaft (7) penetrates through the jack (98) to be rotatably connected with the gear disc (91).

2. A gear pump according to claim 1, characterized in that: and an oil seal table is arranged at the joint of the output shaft (6) and the shell (3).

3. A gear pump according to claim 1, characterized in that: the driving gear (9) and the driven gear (10) are identical in structure, size and shape.

4. A gear pump according to claim 1, characterized in that: the inside of the shell (3) is in a shape of a letter 8, and the outer side of the pulley (96) is attached to the shell (3).

5. A gear pump according to claim 1, characterized in that: the surface of the pulley (96) is smooth.

6. A gear pump according to claim 1, characterized in that: the top end of the sealing gasket (94) is in a semicircular arc shape and is attached to the bottom end of the pulley (96).

7. A gear pump according to claim 1, characterized in that: the sliding grooves (97) are distributed along the inner walls of the upper end and the lower end of the interior of the shell (3).