Hydraulic power unit mechanism of gear pump

Abstract

The utility model discloses a gear pump hydraulic power unit mechanism which comprises a gear pump, and a power transmission assembly is arranged at the driving end of the gear pump. The stable bearing is arranged in the pump body and corresponds to the driving shaft, and the front shaft sleeve and the rear shaft sleeve can enable the driving shaft to have high stability in the stress rotation process, so that the generation of axial force caused by transmission deviation between the driving gear and the driven gear can be effectively reduced; according to the gear pump, multiple sets of gears are adopted for power transmission through the power transmission assembly, the overall power transmission efficiency can be high, power transmission is carried out among the multiple sets of gears, the overall response smoothness can be good when speed increasing or speed reducing is carried out, and the service life of the gear pump is prolonged. Damage of sudden stop or rapid acceleration to internal gears of the gear pump can be effectively avoided, so that the power transmission assembly has a good power output use effect on the gear pump.

Description

Technical Field

[0001] The utility model relates to the technical field of gear pumps, in particular to a gear pump hydraulic power unit mechanism. Background Art

[0002] The gear pump is a rotary pump that relies on the change and movement of the working volume formed between the pump cylinder and the meshing gears to transport liquid or increase its pressure. It consists of two closed spaces, two gears, a pump body, and front and rear covers. When the gears rotate, the volume of the space on the side where the gears are disengaged changes from small to large, forming a vacuum, sucking in the liquid, and the volume of the space on the side where the gears are meshing changes from large to small, squeezing the liquid into the pipeline. The suction chamber and the discharge chamber are separated by the meshing line of the two gears. The pressure at the discharge port of the gear pump depends entirely on the size of the resistance at the pump outlet.

[0003] When the existing gear pump is in use, some oil will remain in the gear meshing point due to the gear meshing degree, which will cause axial force to be generated, affecting the use effect of the gear pump. In addition, when the gear pump is powered, the motor is directly used for power transmission. Although the gear pump has good transfer transmission efficiency during operation, the overall power transmission smoothness and smoothness are low, which affects the use effect of the gear pump. Utility Model Content

[0004] In order to solve the problem that when the gear pump is in use, some oil will remain in the gear meshing position due to the gear meshing degree, thereby causing the generation of axial force and affecting the use effect of the gear pump, and when the gear pump is directly powered by a motor, the smoothness and smoothness of the power transmission are low, thereby affecting the use effect of the gear pump, the purpose of the utility model is to provide a gear pump hydraulic power unit mechanism to solve the above-mentioned problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A gear pump hydraulic power unit mechanism comprises a gear pump, wherein a driving end of the gear pump is provided with a power transmission assembly;

[0007] The gear pump comprises a pump body, a hydraulic power chamber is provided at the rear side of the pump body, a stabilizing bearing is provided at the front side of the pump body, a front sleeve is provided at the rear side of the pump body and at the rear of the stabilizing bearing, a rear sleeve is provided at the upper rear side of the pump body, a driving shaft is installed on the pump body through the front sleeve and the rear sleeve, a driven shaft is provided at the pump body and below the driving shaft, a driving gear is provided on the driving shaft and at the inside of the hydraulic power chamber, a driven gear is provided on the driven shaft corresponding to the driving gear, an oil suction chamber is provided on the left side of the pump body, an oil outlet chamber is provided on the right side of the pump body, and limit baffles are provided on the driving shaft and the driven shaft corresponding to the front and rear sides of the driving gear and the driven gear;

[0008] The power transmission assembly includes a power box, a drive shaft is laterally arranged on the inner front side of the power box, a bevel gear is installed on the drive shaft, a first transmission shaft is longitudinally arranged on the inner left rear side of the power box, a bevel gear is arranged at the front end of the first transmission shaft, a drive gear is arranged at the rear end of the first transmission shaft, a second transmission shaft is longitudinally arranged on the inner right rear side of the power box, and a drive gear is arranged on the second transmission shaft.

[0009] As a preferred solution of the utility model, the stabilizing bearing, the front shaft sleeve and the rear shaft sleeve are arranged on the same axis, and the driving shaft is rotatably connected with the stabilizing bearing, the front shaft sleeve and the rear shaft sleeve.

[0010] As a preferred solution of the utility model, the centers of the oil suction chamber and the oil discharge chamber and the meshing point of the driving gear and the driven gear are arranged on the same horizontal plane.

[0011] As a preferred solution of the utility model, unloading grooves are provided on the limit baffle plate at positions corresponding to the meshing positions with the front and rear side surfaces of the driving gear and the driven gear.

[0012] As a preferred solution of the utility model, an observation cavity is arranged on the pump body and corresponding to the driven shaft, and a blocking cap is arranged at the rear end of the observation cavity.

[0013] As a preferred solution of the utility model, the drive shaft, the first transmission shaft and the second transmission shaft are all connected to the power box by locating bearings.

[0014] As a preferred solution of the utility model, the conical pinion gear is meshed and connected with the conical gear wheel correspondingly, and the driving gear wheel is meshed and connected with the driving pinion gear correspondingly.

[0015] As a preferred solution of the utility model, the power box is composed of two upper and lower box bodies, and the upper and lower box bodies are connected by fixing bolts.

[0016] The utility model can provide a stable bearing, a front shaft sleeve and a rear shaft sleeve in the pump body corresponding to the driving shaft, so that the driving shaft has high stability during the force rotation process, thereby effectively reducing the axial force caused by the transmission deviation between the driving gear and the driven gear, thereby increasing the smoothness and stability of the gear pump during use, and making the gear pump have a longer service life and higher safety.

[0017] The utility model adopts multiple sets of gears for power transmission through the power transmission component, which can make the overall power transmission efficiency higher. The power transmission between the multiple sets of gears can make the overall response smoothness better when speeding up or slowing down, and can effectively avoid damage to the internal gears of the gear pump due to sudden stop or sudden acceleration, so that the power transmission component has a good use effect on the power output of the gear pump.

[0018] The utility model can seal the front and rear sides of the driving gear and the driven gear through the limit baffle, effectively avoiding oil leakage, and the unloading groove is provided on the limit baffle to unload the residual oil in the meshing of the driving gear and the driven gear when working, thereby effectively avoiding the generation of axial force and making the use effect of the gear pump better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a partial structural diagram of the gear pump of the utility model;

[0021] Figure 3 This is a schematic diagram of the side structure of the gear pump of the utility model;

[0022] Figure 4 This is a schematic diagram of the hydraulic transmission structure of the gear pump of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the power transmission component of the utility model.

[0024] In the figure: 1. gear pump; 101. pump body; 102. hydraulic power chamber; 103. stabilizing bearing; 104. front bushing; 105. rear bushing; 106. driving shaft; 107. driven shaft; 108. driving gear; 109. driven gear; 110. oil suction chamber; 111. oil outlet chamber; 112. limit baffle; 113. unloading groove; 114. observation chamber; 115. plugging cap; 2. power transmission assembly; 201. power box; 202. drive shaft; 203. conical gearwheel; 204. first transmission shaft; 205. conical pinion; 206. driving gearwheel; 207. second transmission shaft; 208. driving pinion; 209. positioning bearing. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] Example: See Figure 1-5 A gear pump hydraulic power unit mechanism shown includes a gear pump 1 , and a power transmission component 2 is provided at the driving end of the gear pump 1 .

[0027] In this embodiment, refer to Figure 1-4 As shown, the gear pump 1 includes a pump body 101, a hydraulic power chamber 102 is provided at the rear side of the pump body 101, a stabilizing bearing 103 is provided at the front side of the pump body 101, a front shaft sleeve 104 is provided at the rear side of the stabilizing bearing 103, a rear shaft sleeve 105 is provided at the upper rear side of the pump body 101, a driving shaft 106 is installed on the pump body 101 through the front shaft sleeve 104 and the rear shaft sleeve 105, a driven shaft 107 is provided at the bottom of the driving shaft 106, a driving gear 108 is provided on the driving shaft 106 and at the inside of the hydraulic power chamber 102, a driven gear 109 is provided on the driven shaft 107 corresponding to the driving gear 108, and the pump body An oil suction chamber 110 is provided on the left side of the pump body 101, an oil outlet chamber 111 is provided on the right side of the pump body 101, and limit baffles 112 are provided on the driving shaft 106 and the driven shaft 107 corresponding to the front and rear sides of the driving gear 108 and the driven gear 109; by providing a stable bearing 103, a front sleeve 104, and a rear sleeve 105 corresponding to the driving shaft 106 in the pump body 101, the driving shaft 106 can have higher stability during the process of forced rotation, thereby effectively reducing the axial force caused by the transmission deviation between the driving gear 108 and the driven gear 109, thereby increasing the smoothness and stability of the gear pump 1 during use, so that the gear pump 1 has a longer service life and higher safety.

[0028] The centers of the oil suction chamber 110 and the oil outlet chamber 111 are arranged at the same horizontal plane as the meshing position of the driving gear 108 and the driven gear 109. The function is that the pressure generated by the oil suction chamber 110 and the oil outlet chamber 111 during operation can be better used for oil suction and oil injection by arranging the positions of the oil suction chamber 110 and the oil outlet chamber 111 and the driving gear 108 and the driven gear 109.

[0029] The limit baffle 112 is provided with a relief groove 113 corresponding to the meshing position of the front and rear sides of the driving gear 108 and the driven gear 109. Its function is that the limit baffle 112 can block the front and rear sides of the driving gear 108 and the driven gear 109 to effectively avoid oil leakage, and the limit baffle 112 is provided with a relief groove 113 to unload the residual oil in the meshing of the driving gear 108 and the driven gear 109 during operation, thereby effectively avoiding the generation of axial force and making the use effect of the gear pump 1 better.

[0030] An observation chamber 114 is provided on the pump body 101 and corresponds to the driven shaft 107, a plugging cap 115 is provided at the rear end of the observation chamber 114, the stabilizing bearing 103, the front sleeve 104, and the rear sleeve 105 are arranged on the same axis, and the driving shaft 106 is rotatably connected with the stabilizing bearing 103, the front sleeve 104, and the rear sleeve 105. The driven shaft 107 can be better observed through the observation chamber 114, so that the operation of the driven shaft 107 can be viewed more conveniently.

[0031] In this embodiment, refer to Figure 1 and 5 As shown, the power transmission assembly 2 includes a power box 201, a drive shaft 202 is transversely arranged on the front side of the power box 201, a bevel gear 203 is installed on the drive shaft 202, a first transmission shaft 204 is longitudinally arranged on the left rear side of the power box 201, a bevel gear 205 is arranged at the front end of the first transmission shaft 204, a drive gear 206 is arranged at the rear end of the first transmission shaft 204, a second transmission shaft 207 is longitudinally arranged on the right rear side of the power box 201, and a drive gear 208 is arranged on the second transmission shaft 207. The power transmission assembly 2 uses multiple sets of gears for power transmission, which can make the overall power transmission efficiency higher, and the power transmission between the multiple sets of gears can make the overall response smoothness when speeding up or slowing down better, and can effectively avoid the damage to the internal gears of the gear pump 1 caused by sudden stop or sudden acceleration, so that the power transmission assembly 2 has a good use effect on the power output of the gear pump 1.

[0032] The drive shaft 202, the first transmission shaft 204, and the second transmission shaft 207 are all connected to the power box 201 by using a positioning bearing 209. The positioning bearing 209 can ensure high stability of the switching operation between the drive shaft 202, the first transmission shaft 204, the second transmission shaft 207 and the power box 201.

[0033] The bevel pinion 205 is meshed with the bevel gear 203, the driving gear 206 is meshed with the driving pinion 208, the power box 201 is composed of an upper and lower box body, and the upper and lower box bodies are connected by fixing bolts, and the outer end of the second transmission shaft 207 is connected to the driving shaft 106 by a coupling. The power box 201 is composed of an upper and lower box body, so that the power box 201 can be disassembled conveniently, and the maintenance and repair of the internal transmission mechanism of the power box 201 can be made convenient.

[0034] When the gear pump hydraulic power unit mechanism in this scheme is in use, it is connected to the driving machine through the driving shaft 202 for working rotation, and then the large conical gear 203 transmits power to the small conical gear 205 to realize the rotation of the first transmission shaft 204, and then the first transmission shaft 204 drives the large driving gear 206 to work and transmits power through the driving small gear 208 to enable the second transmission shaft 207 to transmit power to the active shaft 106 to realize the operation of the gear pump 1. The power transmission component 2 uses multiple sets of gears for power transmission, which can make the overall power transmission efficiency higher, and the power transmission between the multiple sets of gears can make the overall response smoothness when speeding up or down better, and can effectively avoid the damage to the internal gears of the gear pump 1 due to sudden stop or sudden acceleration, so that the power transmission component 2 has a good power output effect on the gear pump 1.

[0035] The power is transmitted to the driving shaft 106 through the second transmission shaft 207, and the driving gear 108 and the driven gear 109 are meshed and rotated under the action of the driving shaft 106, so that the hydraulic power chamber 102 in the pump body 101 forms a negative pressure on one side close to the oil suction chamber 110 to achieve oil suction, and the other side achieves oil injection under the action of the driving gear 108 and the driven gear 109. By arranging a stable bearing 103, a front shaft sleeve 104, and a rear shaft sleeve 105 corresponding to the driving shaft 106 in the pump body 101, the driving shaft 106 can have higher stability during the process of forced rotation, thereby effectively reducing the transmission deviation between the driving gear 108 and the driven gear 109. The axial force generated thereby increases the smoothness and stability of the gear pump 1 during use, and makes the gear pump 1 have a longer service life and higher safety.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear pump hydraulic power unit mechanism, comprising a gear pump (1), characterized in that: The driving end of the gear pump (1) is provided with a power transmission component (2); The gear pump (1) comprises a pump body (101), a hydraulic power chamber (102) is provided on the inner rear side of the pump body (101), a stabilizing bearing (103) is provided on the inner front side of the pump body (101), a front shaft sleeve (104) is provided on the inner side of the pump body (101) and on the rear side of the stabilizing bearing (103), a rear shaft sleeve (105) is provided on the inner rear upper side of the pump body (101), a driving shaft (106) is installed on the pump body (101) via the front shaft sleeve (104) and the rear shaft sleeve (105), and a driving shaft (106) is provided on the inner side of the pump body (101) and on the rear upper side of the driving shaft (106). ), a driven shaft (107) is arranged below the driving shaft (106), a driving gear (108) is arranged on the driving shaft (106) and located inside the hydraulic power chamber (102), a driven gear (109) is arranged on the driven shaft (107) corresponding to the driving gear (108), an oil suction chamber (110) is provided on the left side of the pump body (101), an oil discharge chamber (111) is provided on the right side of the pump body (101), and limit baffles (112) are arranged on the driving shaft (106) and the driven shaft (107) corresponding to the front and rear sides of the driving gear (108) and the driven gear (109); The power transmission assembly (2) comprises a power box (201), a drive shaft (202) is transversely arranged on the front side of the power box (201), a bevel gear (203) is mounted on the drive shaft (202), a first transmission shaft (204) is longitudinally arranged on the left rear side of the power box (201), a bevel gear (205) is arranged at the front end of the first transmission shaft (204), a drive gear (206) is arranged at the rear end of the first transmission shaft (204), a second transmission shaft (207) is longitudinally arranged on the right rear side of the power box (201), and a drive gear (208) is arranged on the second transmission shaft (207).

2. A gear pump hydraulic power unit mechanism according to claim 1, characterized in that: The stabilizing bearing (103), the front shaft sleeve (104), and the rear shaft sleeve (105) are arranged on the same axis, and the driving shaft (106) is rotatably connected to the stabilizing bearing (103), the front shaft sleeve (104), and the rear shaft sleeve (105).

3. The gear pump hydraulic power unit mechanism according to claim 1, characterized in that: The centers of the oil suction chamber (110) and the oil discharge chamber (111) and the meshing point of the driving gear (108) and the driven gear (109) are arranged on the same horizontal plane.

4. The gear pump hydraulic power unit mechanism according to claim 1, characterized in that: The limit baffle (112) is provided with a relief groove (113) corresponding to the meshing position between the front and rear side surfaces of the driving gear (108) and the driven gear (109).

5. The gear pump hydraulic power unit mechanism according to claim 1, characterized in that: An observation chamber (114) is provided on the pump body (101) and corresponds to the driven shaft (107), and a blocking cap (115) is provided at the rear end of the observation chamber (114).

6. The gear pump hydraulic power unit mechanism according to claim 1, characterized in that: The driving shaft (202), the first transmission shaft (204), and the second transmission shaft (207) are all connected to the power box (201) by means of positioning bearings (209).

7. The gear pump hydraulic power unit mechanism according to claim 1, characterized in that: The conical pinion (205) is meshedly connected to the conical gear (203), and the driving gear (206) is meshedly connected to the driving pinion (208).

8. The gear pump hydraulic power unit mechanism according to claim 1, characterized in that: The power box (201) is composed of two box bodies, an upper box body and an lower box body, which are connected by fixing bolts.

9. The gear pump hydraulic power unit mechanism according to claim 1, characterized in that: The outer end of the second transmission shaft (207) is correspondingly connected to the driving shaft (106) by means of a coupling.

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