TWM561136U - Gear pump - Google Patents

Abstract

The present invention relates to a gear pump that includes a housing, a gear set, and a wear assembly. The housing includes a top seat, a receiving seat and a base in sequence along one axial direction. The wear-resistant component includes a first wear-resistant piece and a second wear-resistant piece, the first wear-resistant piece is abutted between the upper seat and the accommodating seat, and the second wear-resistant piece is abutted on the Between the receptacle and the base.

Description

Gear pump

This creation is about a gear pump.

According to the general gear pump, when the gear rotates, the working fluid (such as cutting fluid or lubricating oil) is driven to a machine to maintain mechanical lubrication or cooling during cutting to maintain normal operation performance, with the gear uninterrupted. The ground rotation can continuously output the working fluid, so the gear pump has the characteristic of providing the output working fluid quantitatively. In order to make the working fluid not turbulent inside the gear pump housing and the output is unstable, the gear must be placed above. The two sides are in close contact with the upper and lower walls of the gear pump housing to avoid gaps.

However, the conventional gear pump has the following disadvantages: when the gear rotates, the upper and lower walls of the inner casing of the casing are worn by the gear, so that the upper and lower walls of the inner casing of the casing are used after a period of use of the conventional gear pump. The recess will be worn out, so that the upper wall and the lower wall have a gap with the gear, so that the efficiency and stability of the gear pump output working fluid are reduced, and the maintenance cost of replacing the upper layer and the lower layer of the casing is too high, and there is a need for Improve the shortcomings.

Therefore, it is necessary to provide a novel and progressive gear pump to solve the above problems.

The main purpose of the present invention is to provide a gear pump comprising a wear-resistant component, which can prevent the upper and lower sides of the gear from being worn on the upper and lower sides of the gear when the gear rotates, thereby avoiding the output efficiency of the gear pump being reduced. In addition, it can avoid costly replacement of the worn upper seat and the base, so that the gear pump can last longer.

To achieve the above object, the present invention provides a gear pump including a housing, a gear set, and a wear assembly. The housing includes an upper seat, a receiving seat and a base in sequence along an axial direction, and is provided with an oil inlet passage and an oil outlet passage, and the receiving seat is provided with two-phase communication along the axial direction. The two communicating holes are respectively connected to one side of the two receiving holes, and the oil inlet channel and the oil discharging channel are respectively connected to the communication hole. The gear set includes a driving gear and a driven gear. The driving gear and the driven gear are respectively disposed in the two receiving holes. The driving gear is provided with a driving shaft, and the driven gear is provided with a slave gear. a moving shaft, the driving shaft and the driven shaft are pivotally disposed on the upper seat and the base, and the driving shaft is coupled to a rotating shaft of a motor. The wear-resistant component includes a first wear-resistant piece and a second wear-resistant piece, the first wear-resistant piece is abutted between the upper seat and the accommodating seat, and the second wear-resistant piece is abutted on the Between the accommodating seat and the base, the driving gear and the driven gear respectively abut against the first wear piece and the second wear piece along the two end faces of the axial direction.

The structural features of the present invention and the intended effects thereof will be described below by way of a preferred embodiment, but are not intended to limit the scope of the present invention.

Referring to Figures 1 through 4, a preferred embodiment of the present invention is shown. The gear pump of the present invention includes a housing 1, a gear set 5 and a wear assembly 6.

The housing 1 includes an upper seat 2, a receiving seat 3 and a base 4 in an axial direction. The housing 1 is provided with an oil inlet passage 11 and an oil outlet passage 12, and the housing 3 is provided. A two-phase communication receiving hole 31 and two communication holes 32 are formed in the axial direction, and the two communication holes 32 are respectively radially connected to one side of the two receiving holes 31, and the oil inlet channel 11 and the outlet hole The oil passages 12 are respectively connected to one of the communication holes 32. In the present embodiment, the oil inlet passage 11 and the oil outlet passage 12 are disposed in the upper seat 2, and in other embodiments, the inlet portion 3 or the lower seat may be disposed.

The gear set 5 includes a driving gear 51 and a driven gear 52. The driving gear 51 and the driven gear 52 are respectively received in the two receiving holes 31. The driving gear 51 is provided with a driving shaft 511. The driven gear 52 is provided with a driven shaft 521, and the driven shaft 511 and the driven shaft 521 are pivotally disposed on the upper seat 2 and the base 4. In the embodiment, the upper seat 2 and the base 4 are axially respectively Two shaft holes 21, 41 for pivoting the driving shaft 511 and the driven shaft 521 are provided, so that the driving gear 51 and the driven gear 52 can be stably rotated, and the driving shaft 511 is supplied to a motor. The rotating shaft (not shown) is connected in the same manner. In the embodiment, the driving shaft 511 passes through the upper seat 2 for connection with the rotating shaft of the motor.

The wear-resistant component 6 includes a first wear-resistant piece 61 and a second wear-resistant piece 62. The first wear-resistant piece 61 abuts between the upper seat 2 and the receiving seat 3, and the second wear-resistant part The piece 62 is abutted between the accommodating seat 3 and the base 4, and the driving gear 51 and the driven gear 52 are respectively abutted against the first wear piece 61 and the second end along the axial direction. Two wear plates 62.

When the rotating shaft of the motor rotates and drives the driving shaft 511, the driving gear 51 rotates and drives the driven gear 52 to rotate, and a working fluid (such as lubricating oil or cutting fluid) can flow through the oil inlet passage 11 One of the communication holes 32 flows to the two accommodating holes 31, and then flows through the other communication holes 32 to the oil outlet passage 12 to achieve the function of outputting the working fluid. The driving gear 51 and the driven gear 52 are respectively abutted against the first wear plate 61 and the second wear plate 62 along the two end faces of the driven gear 52. When rotating, the first wear-resistant piece 61 and the second wear-resistant piece 62 are rubbed to prevent the end faces of the upper seat 2 and the lower seat from being rubbed against the driving gear 51 and the driven gear 52, and are worn. The first wear-resistant piece 61 and the second wear-resistant piece 62 are less likely to be worn against the upper seat 2 and the lower seat, so that the service life can be prolonged, and the long-term use, such as the first wear-resistant piece 61 and After the second wear plate 62 is still worn, it is only necessary to disassemble the housing 1 and replace the first wear piece 61 and the second wear piece 62, so the gear pump does not need to replace the upper seat 2 With the base 4, the cost of maintenance can be greatly reduced.

Specifically, the first wear plate 61 and the second wear plate 62 are respectively axially disposed with two first through holes 63 respectively for the driving shaft 511 and the driven shaft 521, and the first A wear plate 61 is axially disposed with two second through holes 64. The second through hole 64 is connected to the oil inlet passage 11 and the communication hole 32, and the other second hole 64 is connected to the oil outlet. The passage 12 and the other of the communication holes 32.

It is to be noted that, in this embodiment, a guiding groove 65 is defined between the two first through holes 63 of the first wear plate 61 and one of the second through holes 64, so that the working fluid can be stored in the working fluid. The guiding groove 65 can flow through the two receiving holes 31 to effectively lubricate the driving gear 51 and the driven gear 52 to reduce the rotation of the driving gear 51 and the driven gear 52. Wear of the hole wall of the hole 31, the first wear piece 61 and the second wear piece 62.

Preferably, the gear pump further includes two sealing ring members 13, one of the sealing ring members 13 is disposed between the upper seat 2 and the first wear plate 61, and the other sealing ring member 13 is disposed on the base 4 Between the second wear plate 62 and the second wear plate 62 to prevent leakage of working fluid from the outside of the casing 1. In the embodiment, the upper seat 2 and the side of the base 4 facing the accommodating seat 3 are respectively provided with a ring groove 14 , and the two sealing ring members 13 are respectively received in the ring groove 14 to increase the sealing effect. In addition, a gap can be avoided between the upper seat 2 and the base 4 and the outer peripheral wall of the wear-resistant component 6.

The upper seat 2 and the one side of the base 4 facing the accommodating seat 3 are respectively provided with two convex portions 15 , and the two convex portions 15 of the upper seat 2 are inserted into the first wear-resistant piece 61 and the accommodating seat 3 . The two protrusions 15 of the base 4 are inserted into the second wear-resistant piece 62 and the receiving seat 3, so that the worker can quickly locate when disassembling.

The upper seat 2, the accommodating seat 3, the base 4, the first wear-resistant piece 61 and the second wear-resistant piece 62 are respectively provided with corresponding array of holes 16 respectively. The plurality of locks 17 are locked to prevent the first wear piece 61 and the second wear piece 62 from sliding relative to the upper seat 2, the accommodating seat 3, and the base 4, thereby ensuring the upper seat 2 and the capacity. The seat 3, the base 4, the first wear piece 61 and the second wear piece 62 can be stably assembled and the working fluid is prevented from leaking out.

In summary, the gear pump of the present invention can prevent the upper and lower sides of the gear from being worn on the upper and lower sides of the gear when the gear rotates, thereby avoiding the output efficiency of the gear pump being reduced, and avoiding the consumption. The cost of the upper seat 2 and the base 4 after the wear is replaced by a large amount of cost, so that the service life of the gear pump can be made longer.

And a guiding groove is disposed between the two first through holes of the first wear piece and one of the second through holes, so that the working fluid can be stored in the guiding grooves and can be circulated in the two receiving holes. The hole can effectively lubricate the driving gear and the driven gear to reduce wear of the hole wall of the receiving hole, the first wear piece and the second wear piece when the gear rotates.

1‧‧‧shell
2‧‧‧上上
3‧‧‧ 容座
4‧‧‧Base
5‧‧‧ Gear Set
6‧‧‧Wear parts
11‧‧‧Inlet passage
12‧‧‧ Oil passage
13‧‧‧Seal ring
14‧‧‧ Ring groove
15‧‧‧ convex
16‧‧‧Group holes
17‧‧‧Locker
21‧‧‧Axis hole
31‧‧‧ accommodating holes
32‧‧‧Connected holes
41‧‧‧Axis hole
51‧‧‧Drive gear
52‧‧‧ driven gear
511‧‧‧Active shaft
521‧‧‧ driven shaft
61‧‧‧First wear-resistant piece
62‧‧‧Second wear piece
63‧‧‧First perforation
64‧‧‧Second perforation
65‧‧‧ guiding slot

1 is a perspective view of a preferred embodiment of the present invention. 2 is an exploded view of a preferred embodiment of the present invention. 3 is a partial perspective view of a preferred embodiment of the present invention. 4 is a cross-sectional view of a preferred embodiment of the present invention.

Claims (10)

A gear pump includes: a casing comprising a top seat, a receiving seat and a base in sequence along an axial direction, and an oil inlet passage and an oil outlet passage, the accommodating seat along the axial direction The two through holes are respectively connected to one side of the two receiving holes, and the oil inlet channel and the oil outlet channel are respectively connected to the communication. a gear set includes a driving gear and a driven gear, wherein the driving gear and the driven gear are respectively received in the two receiving holes, and the driving gear is provided with a driving shaft, the driven gear a driven shaft is disposed, the driving shaft and the driven shaft are pivotally disposed on the upper seat and the base, wherein the driving shaft is coupled to a rotating shaft of a motor; a wear-resistant assembly includes a first wear-resistant shaft a sheet and a second wear-resistant sheet, the first wear-resistant sheet is abutted between the upper seat and the accommodating seat, and the second wear-resistant piece is abutted between the accommodating seat and the base, The driving gear and the driven gear are respectively abutted against the first wear piece and the second wear resistant along the two end faces of the axial direction . The gear pump of claim 1, wherein the upper seat and the base are respectively axially provided with two shaft holes for pivoting the driving shaft and the driven shaft. The gear pump of claim 1, wherein the first wear plate and the second wear plate are respectively axially disposed with two first through holes respectively for the drive shaft and the driven shaft to pass through. The gear pump of claim 3, wherein the first wear piece is axially provided with two second perforations, one of the second perforations is connected to the oil inlet passage and one of the communication holes, and the other second The perforation is connected to the oil outlet passage and the other communication hole. The gear pump of claim 4, wherein a guiding groove is disposed between the two first perforations of the first wear piece and one of the second perforations. The gear pump of claim 1, further comprising two sealing ring members, wherein the sealing ring member is disposed between the upper seat and the first wear piece, and the other sealing ring member is disposed on the base and the first Between two wear-resistant sheets. The gear pump of claim 6, wherein the upper seat and the base are respectively provided with a ring groove facing one side of the receiving seat, and the two sealing ring members are respectively accommodated in the two ring groove. The gear pump of claim 1, wherein the upper seat and the base face each side of the receiving seat are respectively provided with two convex portions, and the two convex portions of the upper seat are inserted into the first wear-resistant piece and the The two protrusions of the base are inserted into the second wear piece and the receiving seat. The gear pump of claim 1, wherein the oil inlet passage and the oil outlet passage are provided in the upper seat. The gear pump according to any one of claims 1 to 9, wherein the upper seat, the accommodating seat, the base, the first wear piece and the second wear piece are respectively provided with corresponding arrays Hole for the locking of multiple locks.