CN116066354A

CN116066354A - Gear pump integrating rapid internal cleaning function

Info

Publication number: CN116066354A
Application number: CN202111289738.0A
Authority: CN
Inventors: 王家杨; 袁华雷; 熊永生; 余雄超; 杨少飞
Original assignee: Shanghai Fanuc Robotics Co Ltd
Current assignee: Shanghai Fanuc Robotics Co Ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2023-05-05

Abstract

The invention discloses a gear pump integrating a rapid internal cleaning function, which relates to the technical field of gear pump cleaning and comprises a gear pump body, a sensor mounting module and a bypass shaft cleaning module, wherein the bypass shaft cleaning module is arranged on one side of the gear pump body, the sensor mounting module is arranged on the gear pump body, the sensor mounting module is used for monitoring the pressure of paint or curing agent flowing in and out of the gear pump body, and the bypass shaft cleaning module is used for bypassing the paint or curing agent and flowing in and out of cleaning solvent for cleaning or shaft cleaning in the gear pump body. According to the invention, the special cleaning flow channel is arranged in the gear pump body, so that cleaning solvent can flow through the solvent inlet joint and the solvent outlet joint quickly, the problem that gaps among gear pump parts need to be cleaned by permeation is avoided, the cleaning efficiency is improved, and gaps among all relatively moving parts can be comprehensively cleaned.

Description

Gear pump integrating rapid internal cleaning function

Technical Field

The invention relates to the technical field of gear pump cleaning, in particular to a gear pump integrating a rapid internal cleaning function.

Background

The gear pump is a process device for accurately metering and conveying liquid media, the gear pump consists of a pair of gears meshed with each other, the liquid media enter the pump body from one side of the meshing part of the gear set, when the gears rotate, tooth gaps between every two teeth of the gears can carry liquid to rotate, after the gears rotate to the other side of the meshing part of the gear set, the liquid in the tooth gaps is discharged due to meshing of the gear set, and the discharge amount is similar to the volume of the tooth gaps of the gears, so that the purpose of accurately metering and conveying the liquid media can be achieved by accurately controlling the rotating speed of the gears.

Gear pumps have found widespread use in the spray industry for metering and delivery of paint. In the case that a set of equipment uses paints with various colors for spraying operation, the paints in the equipment often need to change colors frequently, and conveying channels including gear pumps need to be cleaned during color changing. Because of the structural characteristics of the gear pump, the gear pump is not only required to clean the tooth surface, but also required to clean the gap between the side surface of the gear and the front and rear mounting plates and the gap between the gear and the shaft, so that the gear pump has higher cleaning difficulty. The cleaning time of the gear pump greatly restricts the color changing time and the color changing efficiency of the whole spraying system.

Disclosure of Invention

The invention aims to provide a gear pump integrating a rapid internal cleaning function, which is used for solving the technical problems.

The technical scheme adopted by the invention is as follows:

the utility model provides an integrated quick inside gear pump of wasing function, includes the gear pump body, sensor installation module and bypass axle washing module, one side of the gear pump body is equipped with the bypass axle washes the module, be equipped with on the gear pump body the sensor installation module, wherein, the sensor installation module is used for monitoring the pressure of the paint or the curing agent of the inflow and outflow of the gear pump body, the bypass axle washes the module and is used for the bypass of paint or curing agent and the inside washing of the gear pump body or the inflow and the outflow of the washing solvent of axle washing.

Preferably, the gear pump body comprises a first cover plate, a second cover plate and a gear mounting plate, wherein the first cover plate and the second cover plate are symmetrically arranged on two sides of the gear mounting plate, mounting holes for mounting a driving wheel and a driven wheel are formed in the gear mounting plate, a driven shaft is arranged on the driven wheel, a driving shaft is integrally arranged on the driving wheel, and two ends of the driving shaft and two ends of the driven shaft are respectively in clearance fit with the first cover plate and the second cover plate.

As a further preferable mode, the first cover plate and the second cover plate are provided with contact surfaces which are in contact with the driving wheel and the driven wheel, each contact surface is provided with a mounting groove for mounting the driving shaft and the driven shaft, and the driving shaft and the driven shaft are in clearance fit with the mounting grooves.

As a further preferred aspect, a cleaning tank is provided on one side of each of the installation tanks, and the cleaning tank is communicated with the installation tank, wherein the cleaning tanks are communicated on both sides of the second cover plate, a solvent inflow end and a solvent outflow end are provided on the first cover plate, and the solvent inflow end and the solvent outflow end are respectively communicated with one of the cleaning tanks.

As a further preferred aspect, the side of the first cover plate away from the second cover plate is provided with a bypass shaft washing module, the bypass shaft washing module comprises a bypass shaft washing block, a solvent inlet connector and a solvent outlet connector, the bypass shaft washing block is connected with the first cover plate, one side of the bypass shaft washing block is provided with the solvent inlet connector and the solvent outlet connector, the solvent inlet connector is communicated with the solvent inflow end, and the solvent outlet connector is communicated with the solvent outflow end.

As a further preferable mode, the air control valve and the air connector are further included, the air control valve is arranged in the bypass shaft washing block, the air connector is arranged on the bypass shaft washing block, and the air connector is connected with the air control valve.

As a further preferred aspect, the sensor mounting module includes a sensor mounting block, a pressure sensor, a medium inflow joint and a medium outflow joint, the sensor mounting block is connected with the second mounting plate, two sides of the sensor mounting block are provided with the medium inflow joint and the medium outflow joint, and the medium inflow joint and the medium outflow joint are communicated with the mounting hole, and one end of the sensor mounting block is provided with two pressure sensors.

As a further preferable mode, a first annular groove is formed in the outer edge of one end of the driven shaft, a first spiral groove is formed in the outer edge of the driven shaft, one end of the first spiral groove is communicated with the first annular groove, and the other end of the first spiral groove extends to the surface of the other end of the driven shaft.

As a further preferable mode, a second annular groove is formed in the outer edge of the driving shaft, a first through hole is formed in the second annular groove, a central hole is formed in the driving shaft, one end of the central hole is communicated with the first through hole, and the other end of the central hole extends to the surface of one end of the driving shaft.

As a further preferable mode, a second spiral groove is formed at the outer edge of one end of the driving shaft.

The technical scheme has the following advantages or beneficial effects:

(1) In the invention, the special cleaning flow channel is arranged in the pump body of the gear pump, and cleaning solvent can flow through the solvent inlet joint and the solvent outlet joint quickly, so that the problem that gaps among parts of the gear pump need to be cleaned by permeation is avoided, and the cleaning efficiency is improved;

(2) According to the invention, the design of the cleaning flow channel is communicated with all the matching surfaces of the parts, so that gaps among all the relatively moving parts can be comprehensively cleaned, and the solvent flowing through the cleaning flow channel rapidly can efficiently take away the paint participating in the gaps of all the matching surfaces, thereby realizing efficient cleaning.

Drawings

FIG. 1 is a schematic diagram of a gear pump incorporating a rapid internal cleaning function in accordance with the present invention;

FIG. 2 is an exploded schematic view of a gear pump incorporating a rapid internal cleaning function in accordance with the present invention;

FIG. 3 is a cross-sectional view of the pump body of the gear pump of the present invention;

FIG. 4 is a schematic view of the structure of the first cover plate in the present invention;

FIG. 5 is a schematic view of the structure of the driven shaft in the present invention;

FIG. 6 is a cross-sectional view of the drive shaft in the present invention;

fig. 7 is a schematic structural view of the drive shaft in the present invention.

In the figure: 1. a gear pump body; 101. a first cover plate; 102. a second cover plate; 103. a gear mounting plate; 104. a mounting hole; 105. a driving wheel; 106. driven wheel; 107. a driving shaft; 108. a driven shaft; 109. a contact surface; 110. a mounting groove; 111. shallow grooves; 112. a cleaning tank; 113. a solvent inflow end; 114. a solvent outflow end; 115. a first annular groove; 116. a first helical groove; 117. a second annular groove; 118. a central bore; 119. a second helical groove; 120. a seal; 121. a paint inlet; 122. a paint outlet; 2. a sensor mounting module; 201. a sensor mounting block; 202. a pressure sensor; 203. a medium inflow joint; 204. a medium outflow joint; 205. a transfer block; 206. a color development tube; 3. a bypass shaft washing module; 301. a bypass shaft wash block; 302. a solvent inlet fitting; 303. a solvent outlet connection; 304. a pneumatic control valve; 305. and an air joint.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the indicated apparatus or element must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.

In the description of the present invention, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

FIG. 1 is a schematic diagram of a gear pump incorporating a rapid internal cleaning function in accordance with the present invention; FIG. 2 is an exploded schematic view of a gear pump incorporating a rapid internal cleaning function in accordance with the present invention; FIG. 3 is a cross-sectional view of the pump body of the gear pump of the present invention; FIG. 4 is a schematic view of the structure of the first cover plate in the present invention; FIG. 5 is a schematic view of the structure of the driven shaft in the present invention; FIG. 6 is a cross-sectional view of the drive shaft in the present invention; fig. 7 is a schematic structural view of a driving shaft in the present invention, please refer to fig. 1 to 7, which shows a preferred embodiment, and a gear pump integrated with a rapid internal cleaning function is shown, which includes a gear pump body 1, a sensor mounting module 2 and a bypass shaft cleaning module 3, wherein one side of the gear pump body 1 is provided with the bypass shaft cleaning module 3, the gear pump body 1 is provided with the sensor mounting module 2, wherein the sensor mounting module 2 is used for monitoring the pressure of paint or curing agent flowing in and out of the gear pump body 1, and the bypass shaft cleaning module 3 is used for bypassing the paint or curing agent and flowing in and out of cleaning solvent for cleaning or shaft cleaning inside the gear pump body 1. In this embodiment, as shown in fig. 1, the bypass shaft washing module 3 is disposed on the left side of the gear pump body 1, and the sensor mounting module 2 is disposed on the upper side of the gear pump body 1, wherein the sensor mounting module 2 and the bypass shaft washing module 3 are both in communication with the gear pump body 1.

Further, as a preferred embodiment, the gear pump body 1 includes a first cover plate 101, a second cover plate 102 and a gear mounting plate 103, where the first cover plate 101 and the second cover plate 102 are symmetrically disposed on two sides of the gear mounting plate 103, the gear mounting plate 103 is provided with a mounting hole 104 for mounting a driving wheel 105 and a driven wheel 106, the driven wheel 106 is provided with a driven shaft 108, the driving wheel 105 is integrally provided with a driving shaft 107, and two ends of the driving shaft 107 and two ends of the driven shaft 108 are respectively in clearance fit with the first cover plate 101 and the second cover plate 102. In this embodiment, as shown in fig. 2, the first cover plate 101 and the second cover plate 102 have the same shape, the first cover plate 101 and the second cover plate 102 are used for providing sealed spaces for the driving wheel 105 and the driven wheel 106 (gear set), the gear mounting plate 103 is used for fixing the driving wheel 105 and the driven wheel 106, the driving wheel 105 and the driven wheel 106 are meshed, and when paint enters the meshing area of the driving wheel 105 and the driven wheel 106, the paint is discharged after being carried by the gear set to rotate for one circle. Wherein, both ends of the driving shaft 107 and both ends of the driven shaft 108 are respectively in clearance fit with the first cover plate 101 and the second cover plate 102, so that the ends of the driving shaft 107 and the driven shaft 108 and the first cover plate 101 and the second cover plate 102 are conveniently cleaned. In this embodiment, the integrated arrangement between the driving wheel 105 and the driving shaft 107 can avoid the penetration of paint, and cleaning is not required.

Further, as a preferred embodiment, the first cover plate 101 and the second cover plate 102 are provided with contact surfaces 109 contacting the driving wheel 105 and the driven wheel 106, each contact surface 109 is provided with a mounting groove 110 for mounting the driving shaft 107 and the driven shaft 108, and the driving shaft 107 and the driven shaft 108 are in clearance fit with the mounting grooves 110. As shown in fig. 4, a contact surface 109 is provided on one side surface of the first cover plate 101, the contact surface 109 is flush with one side surface of the first cover plate 101, a shallow groove 111 is provided on the periphery of the contact surface 109 for placing a sealing member 120, so as to avoid liquid from seeping out from a gap between the gear mounting plate 103 and the first cover plate 101 and the second cover plate 102 in operation, wherein the side surfaces of the driving wheel 105 and the driven wheel 106 are in contact with the contact surface 109, and the shallow groove 111 is opposite to the tooth blocks on the driving wheel 105 and the driven wheel 106. In this embodiment, as shown in fig. 3, the driving shaft 107 is in clearance fit with the mounting groove 110 on the first cover plate 101 and in clearance fit with the second cover plate 102. The follower shaft 108 is in clearance fit with a mounting groove 110 on the second cover plate 102 and in clearance fit with a mounting groove 110 on the first cover plate 101. Four of the mounting slots 110 are provided. By means of a clearance fit, it is ensured that the cleaning solvent can flow into and completely clean the paint/curing agent residues in the contact positions of the bottom surfaces of the driving shaft 107 and the driven shaft 108 with the cover plate.

Further, as a preferred embodiment, a cleaning tank 112 is provided at one side of each installation tank 110, and the cleaning tanks 112 are communicated with the installation tanks 110, wherein the cleaning tanks 112 at two sides of the second cover plate 102 are communicated, the first cover plate 101 is provided with a solvent inflow end 113 and a solvent outflow end 114, and the solvent inflow end 113 and the solvent outflow end 114 are respectively communicated with a cleaning tank 112. In the present embodiment, a cleaning tank 112 is provided for cleaning the side surfaces of the driving wheel 105 and the driven wheel 106. Wherein the axial length of the washing tub 112 is the same as the diameters of the sides of the driving wheel 105 and the driven wheel 106, wherein the diameters of the sides of the driving wheel 105 and the driven wheel 106 do not include the heights of the gears. The cleaning solvent enters the cleaning tank 112 through the solvent inflow end 113, the cleaning tank 112 is a rectangular groove which can circulate the solvent, the cleaning solvent cleans the areas where the sides of the driving wheel 105 and the driven wheel 106 are contacted with the cleaning tank 112, when the driving wheel 105 and the driven wheel 106 rotate, the cleaning of different areas on the sides of the driving wheel 105 and the driven wheel 106 can be realized, and after the driving wheel 105 and the driven wheel 106 rotate for one circle, the cleaning of all the areas on the sides of the driving wheel 105 and the driven wheel 106 can be realized.

Further, as a preferred embodiment, a bypass shafting module 3 is provided on a side of the first cover plate 101 away from the second cover plate 102, the bypass shafting module 3 includes a bypass shafting block 301, a solvent inlet joint 302 and a solvent outlet joint 303, the bypass shafting block 301 is connected with the first cover plate 101, a solvent inlet joint 302 and a solvent outlet joint 303 are provided on a side of the bypass shafting block 301, the solvent inlet joint 302 is communicated with the solvent inflow end 113, and the solvent outlet joint 303 is communicated with the solvent outflow end 114. Wherein the cleaning solvent enters the solvent inflow end 113 through the solvent inlet joint 302, flows out through the solvent outflow end 114 after cleaning, and is discharged through the solvent outlet joint 303.

Further, as a preferred embodiment, the bypass shaft washing block 301 further comprises a pneumatic control valve 304 and a pneumatic connector 305, wherein the pneumatic control valve 304 is arranged in the bypass shaft washing block 301, the pneumatic connector 305 is arranged on the bypass shaft washing block 301, and the pneumatic connector 305 is connected with the pneumatic control valve 304. The pneumatic control valve 304 and the pneumatic connector 305 are used for controlling the on-off of the solvent during the cleaning of the inside of the gear pump body 1, so that the cleaning solvent can flow in and out conveniently.

Further, as a preferred embodiment, the sensor mounting module 2 includes a sensor mounting block 201, a pressure sensor 202, a medium inflow joint 203 and a medium outflow joint 204, the sensor mounting block 201 is connected with the second mounting plate, the two sides of the sensor mounting block 201 are provided with the medium inflow joint 203 and the medium outflow joint 204, the medium inflow joint 203 and the medium outflow joint 204 are connected with the sensor mounting block 201 and an internal flow channel in the second cover plate 102, a position between the driving wheel 105 and the driven wheel 106 on the first cover plate 102 is provided with a paint inlet 121 and a paint outlet 122 for flowing into or out of the gear pump body 1, and one end of the sensor mounting block 201 is provided with two pressure sensors 202. In this embodiment, a first liquid passage is provided in the sensor mounting block 201, a second liquid passage is provided in the second mounting plate and is in communication with the mounting hole 104 on the gear mounting plate 103, wherein the first liquid passage is in communication with the medium inflow joint 203 and the second liquid passage, the second liquid passage is in communication with the medium outflow joint 204, and two pressure sensors 202 are connected to the two first liquid passages and the second liquid passage for monitoring the pressure of the paint flowing in and out. The internal flow channels in the second cover plate 102 have two flow channels, namely a paint inlet flow channel and a paint outlet flow channel, wherein the paint inlet flow channel is communicated with the paint inlet 121 and the first liquid passage, and the paint outlet flow channel is communicated with the paint outlet 122 and the second liquid passage. Wherein paint flows in through the medium inflow joint 203 and flows out through the medium outflow joint 204. In cleaning the tooth surface of the gear, the cleaning solvent flows in and out through the medium inflow joint 203 and out through the medium outflow joint 204, similarly to the paint.

Further, as a preferred embodiment, a first annular groove 115 is formed at an outer edge of one end of the driven shaft 108, a first spiral groove 116 is formed at an outer edge of the driven shaft 108, one end of the first spiral groove 116 is communicated with the first annular groove 115, and the other end extends to the other end surface of the driven shaft 108. In this embodiment, as shown in fig. 5 and 3, the first annular groove 115 surrounds the driven shaft 108 for one turn, and the first annular groove 115 is communicated with the cleaning tank 112, specifically, is communicated with the cleaning tank 112 opposite to the driven wheel 106 on the first cover plate 101, the cleaning solvent enters the cleaning tank 112, and then enters the first annular groove 115 and the first spiral groove 116, so that the cleaning of the gap between the driven wheel 106 and the driven shaft 108 is realized, and the arrangement of the first annular groove 115 and the first spiral groove 116 can ensure the rapid circulation of the cleaning solvent, so that the problem that the gap between gear pump parts needs to be cleaned by permeation is avoided, and the cleaning efficiency can be effectively improved. In this embodiment, the number of the cleaning tanks 112 is four, and the cleaning tanks correspond to two sides of the driving wheel 105 and two sides of the driven wheel 106 respectively.

Further, as a preferred embodiment, a second annular groove 117 is formed in the outer edge of the driving shaft 107, a first through hole is formed in the second annular groove 117, a central hole 118 is formed in the driving shaft 107, one end of the central hole 118 is communicated with the first through hole, and the other end of the central hole 118 extends to the surface of one end of the driving shaft 107. After the cleaning solvent enters the second annular groove 117, the cleaning solvent enters the central hole 118 from the first through hole, enters the other side surface of the driving shaft 107, and then enters the cleaning groove 112 through the second spiral groove 119, so that the side surface of the driving wheel 105 is cleaned. After the cleaning is completed, the solvent is introduced into the solvent outlet port 303 through the solvent outlet port 114, and is discharged through the solvent outlet port 303. In the present embodiment, as shown in fig. 7, the second annular groove 117 and the second spiral groove 119 are provided on both sides of the drive wheel 105. The second annular groove 117 communicates with the cleaning tank 112 on the second cover plate 102 opposite to the driving wheel 105. The second spiral groove 119 is communicated with the cleaning groove 112 on the first cover plate 101 opposite to the driving wheel 105.

Further, as a preferred embodiment, a second spiral groove 119 is formed at an outer edge of one end of the driving shaft 107.

The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope and embodiments of the present invention.

The present invention has the following preferred embodiments based on the preferred embodiments described above:

further, as a preferred embodiment, a transfer block 205 is further included, and the bottom of the sensor mounting block 201 is connected to the second cover plate 102 through the transfer block 205.

Further, as a preferred embodiment, the cleaning device further comprises a sealing member 120, wherein the sealing member 120 is arranged in the shallow groove 111 around the contact surface 109, so as to prevent leakage of cleaning solvent or paint or curing agent.

Further, as a preferred embodiment, the paint container further comprises a color development tube 206, and a color development tube 206 is disposed on one side of the second cover plate 102, wherein the color development tube 206 is connected to the second liquid path for monitoring possible leakage of paint.

In this embodiment, the first liquid passage, the mounting hole 104, and the second liquid passage form a first purge channel. The solvent inlet joint 302, the solvent inflow end 113, the four cleaning tanks 112, the first annular groove 115, the first spiral groove 116, the second annular groove 117, the first through hole, the central hole 118, the second spiral groove 119, the solvent outflow end 114 and the solvent outlet joint 303 form a second cleaning channel, wherein the first cleaning channel is also a channel of paint or curing agent for cleaning tooth surfaces of the driving wheel 105 and the driven wheel 106 and an inlet and an outlet of paint. The second cleaning channel is used for cleaning gaps between the parts.

The cleaning of the gear pump body 1 includes the cleaning of the inlet and outlet channels and the cleaning of the tooth surfaces, and can be realized through the first cleaning channel, and the cleaning of the gear pump body 1 further includes the cleaning of the gaps between each part, such as the cleaning of the gaps between the two side surfaces of the driving wheel 105 and the driven wheel 106 and the first cover plate 101 and the second cover plate 102, the cleaning of the gap between the driven wheel 106 and the driven wheel 108, and the cleaning of the gaps between the two end parts of the driving wheel 107 and the driven wheel 108 and the first cover plate 101 and the second cover plate 102.

The cleaning process of the inlet and outlet channels of the gear pump body 1 and the cleaning process of the tooth surface are as follows: cleaning solvent is introduced into one of the first liquid passages through the medium inflow joint 203, and enters the meshing area of the driving pulley 105 and the driven pulley 106 in the mounting hole 104. The driving wheel 105 drives the driven wheel 106 to rotate, so that the cleaning solvent is driven to rotate for one circle and then enters the second liquid passage, and finally is discharged from the medium outflow joint 204, thereby realizing the cleaning of the inlet and outlet channels and the cleaning of the tooth surface.

The cleaning process of the gaps among all parts in the gear pump body 1 is as follows: the cleaning solvent enters the solvent inflow end 113 from the solvent inlet joint 302 and enters the cleaning tank 112 to wash and clean the area contacted with the cleaning tank 112 on one side surface of the driven wheel 106 at the moment, along with the rotation of the driven wheel 106 for one circle, the side surface of the whole driven wheel 106 contacts the cleaning solvent in the cleaning tank 112, and the cleaning solvent flowing continuously in the cleaning tank 112 is like a brush, and along with the rotation of the driven wheel 106 for one circle, the whole gear surface is washed for one time, so that the aim of cleaning the whole gear surface is fulfilled. The cleaning solvent then enters the first spiral groove 116 from the first annular groove 115 on the driven shaft 108 for guiding the cleaning solvent, and the first spiral groove 116 extends to the end of the driven wheel 106, so that the cleaning solvent can enter the end of the driven wheel 106 and the mounting groove 110 on the second cover plate 102, and the clearance between the shaft and the cover plate is cleaned. The relative movement between the driven wheel 106 and the driven wheel 108 ensures that the cleaning solvent contacts and completely cleans the gap between the driven wheel 108 and the driven wheel 106 as the driven wheel 106 rotates one revolution with the driving wheel 105. The continuously flowing cleaning solvent in the spiral groove can scrub the shaft hole wall of the driven wheel 106 once a circle, then the cleaning solvent enters the cleaning tank 112 on the other side surface of the driven wheel 106, and meanwhile the other side surface of the driven wheel 106 is cleaned. Then the cleaning solvent enters into a cleaning tank 112 which is opposite to the driving wheel 105 on the second cover plate 102, and one side surface of the driving wheel 105 is cleaned. The cleaning solvent then enters the central bore 118 through the first through-hole in the second annular groove 117 and then into the end of the drive shaft 107 and the mounting groove 110 on the first cover plate 101 to clean the gap between the shaft and the cover plate. Then the cleaning solvent enters into the second spiral groove 119 to clean the gap between the outer edge of the driving shaft 107 and the mounting groove 110, finally enters into the cleaning groove 112 to clean the other side surface of the driving wheel 105, finally enters into the solvent outlet connector 303 from the solvent outflow end 114 and is discharged from the solvent outlet connector 303, thereby cleaning the gap between each part in the gear pump body 1.

The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a gear pump of integrated quick inside cleaning function, its characterized in that, including the gear pump body, sensor installation module and bypass axle washing module, one side of the gear pump body is equipped with the bypass axle washes the module, be equipped with on the gear pump body the sensor installation module, wherein, the sensor installation module is used for monitoring the pressure of the paint or the curing agent of the inflow and outflow of the gear pump body, the bypass axle washes the module and is used for the bypass of paint or curing agent and the inside washing of the gear pump body or the inflow and outflow of the washing solvent of axle washing.

2. The gear pump integrated with the rapid internal cleaning function according to claim 1, wherein the gear pump body comprises a first cover plate, a second cover plate and a gear mounting plate, the first cover plate and the second cover plate are symmetrically arranged on two sides of the gear mounting plate, mounting holes for mounting a driving wheel and a driven wheel are formed in the gear mounting plate, a driven wheel is arranged on the driven wheel, a driving shaft is integrally arranged on the driving wheel, and two ends of the driving shaft and two ends of the driven shaft are respectively in clearance fit with the first cover plate and the second cover plate.

3. The gear pump integrating the rapid internal cleaning function according to claim 2, wherein contact surfaces with the driving wheel and the driven wheel are respectively formed on the first cover plate and the second cover plate, mounting grooves for mounting the driving shaft and the driven shaft are respectively formed on each contact surface, and the driving shaft and the driven shaft are in clearance fit with the mounting grooves.

4. The gear pump integrating the rapid internal cleaning function according to claim 3, wherein a cleaning tank is provided on one side of each of the installation tanks, and the cleaning tank is communicated with the installation tank, wherein the cleaning tanks on both sides of the second cover plate are communicated, and the first cover plate is provided with a solvent inflow end and a solvent outflow end, which are respectively communicated with one of the cleaning tanks.

5. The gear pump integrating a rapid internal cleaning function according to claim 4, wherein the side of the first cover plate away from the second cover plate is provided with the bypass shaft washing module, the bypass shaft washing module comprises a bypass shaft washing block, a solvent inlet joint and a solvent outlet joint, the bypass shaft washing block is connected with the first cover plate, one side of the bypass shaft washing block is provided with the solvent inlet joint and the solvent outlet joint, the solvent inlet joint is communicated with the solvent inflow end, and the solvent outlet joint is communicated with the solvent outflow end.

6. The gear pump integrating the rapid internal cleaning function according to claim 5, further comprising a pneumatic control valve and a pneumatic connector, wherein the pneumatic control valve is arranged in the bypass shaft washing block, the pneumatic connector is arranged on the bypass shaft washing block, and the pneumatic connector is connected with the pneumatic control valve.

7. The gear pump integrating the rapid internal cleaning function according to claim 2, wherein the sensor mounting module comprises a sensor mounting block, a pressure sensor, a medium inflow joint and a medium outflow joint, the sensor mounting block is connected with the second mounting plate, the medium inflow joint and the medium outflow joint are arranged on two sides of the sensor mounting block, the medium inflow joint and the medium outflow joint are communicated with the mounting hole, and two pressure sensors are arranged at one end of the sensor mounting block.

8. The gear pump integrated with the rapid internal cleaning function according to claim 4, wherein a first annular groove is formed in the outer edge of one end of the driven shaft, a first spiral groove is further formed in the outer edge of the driven shaft, one end of the first spiral groove is communicated with the first annular groove, and the other end of the first spiral groove extends to the other end surface of the driven shaft.

9. The gear pump integrating the rapid internal cleaning function according to claim 4, wherein a second annular groove is formed in the outer edge of the driving shaft, a first through hole is formed in the second annular groove, a central hole is formed in the driving shaft, one end of the central hole is communicated with the first through hole, and the other end of the central hole extends to the surface of one end of the driving shaft.

10. The gear pump integrating the rapid internal cleaning function according to claim 9, wherein a second spiral groove is provided at an outer edge of one end of the driving shaft.