CN216743800U

CN216743800U - Automatic lubricating device for gear pump

Info

Publication number: CN216743800U
Application number: CN202123072287.3U
Authority: CN
Inventors: 刘涛; 晋玉国; 张伟
Original assignee: Luoyang Jingshan Machinery Manufacturing Co ltd
Current assignee: Luoyang Jingshan Machinery Manufacturing Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-06-14
Anticipated expiration: 2031-12-09

Abstract

The utility model discloses an automatic lubricating device for a gear pump, which comprises a base, a bracket is arranged at one side position on the base, a motor is arranged on the bracket, a pump body is arranged on the base, an output shaft of the motor is coaxially fixed with a main shaft through a shaft coupling, one end of the main shaft passes through the pump body and is coaxially fixed with a driving gear, a driven gear is meshed below the driving gear and is supported on two supporting plates through the rotation of a driven shaft, a sliding bearing is fixedly arranged at one side of the inner wall of the pump body, which is far away from the supporting plate, the main shaft is arranged in the sliding bearing in a penetrating way, an oil inlet and an oil outlet are respectively arranged at the upper end and the lower end of the sliding bearing, an oil supply tank is arranged at the outer part of the pump body, the oil inlet is communicated to the lower part of a liquid level of the oil supply pipe through an oil outlet pipe, the oil pump is arranged on the oil inlet pipe and above the pump body, and shaft seals are arranged on two sides of the sliding bearing, so that the circulating lubrication effect on the sliding bearing of the pump body can be realized.

Description

Automatic lubricating device for gear pump

Technical Field

The utility model relates to a gear pump technical field, more specifically say, it relates to a self-lubricate device for gear pump.

Background

In a pump body lubricating device, a motor drives a pump body, the motor and the pump body are both arranged on the lower side of an oil tank, an oil suction port of the pump body is communicated with the oil tank, a motor shaft is connected with an input shaft of the pump body and drives the pump body to rotate, in the process of meshing gear teeth of the pump body, grease is sucked in when the gear teeth are separated, the grease is conveyed to a grease pressing cavity when the gear teeth rotate, the grease is pressed into a lubricating pipeline by the grease pressing cavity and conveyed to a part to be lubricated, but the lubricating speed of a bearing by the pump body lubricating device on the market at present is lower, and resource waste can not be caused by the cyclic utilization of the lubricating oil.

Therefore, it is necessary to design an automatic lubricating device for a gear pump, which can realize a circulating lubrication effect on a pump bearing.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a self-lubricate device for gear pump, it can realize the circulating lubrication effect to the slide bearing of the pump body.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an automatic lubricating device for a gear pump comprises a base, wherein a support is arranged at one side of the base, a motor is arranged on the support, a pump body is arranged at the other side of the motor on the base, a main shaft is coaxially fixed on an output shaft of the motor through a coupler, a driving gear is coaxially fixed on one end, far away from the coupler, of the main shaft, penetrates through the pump body, a first supporting plate is fixed on the base, far away from the motor, in the pump body, the inner end of the main shaft is rotatably supported on the first supporting plate through a bearing, a second supporting plate is fixed on one side, far away from the first supporting plate, below the driving gear, a driven gear is meshed with the driving gear, and the driven gear is rotatably supported on the two supporting plates through a driven shaft;

a sliding bearing is fixedly installed on one side, far away from the first supporting plate, of the inner wall of the pump body, the main shaft penetrates through the sliding bearing, an oil inlet and an oil outlet are respectively formed in the upper end and the lower end of the sliding bearing, an oil supply tank is arranged outside the pump body, the oil inlet is communicated to the position below the liquid level of the oil supply pipe through an oil inlet pipe, the oil outlet is communicated to the oil supply tank through an oil outlet pipe, and an oil pump is installed on the oil inlet pipe and above the pump body;

and shaft seals are arranged on two sides of the sliding bearing.

The utility model discloses a further set up to: a first connecting sleeve and a second connecting sleeve are arranged at two ends of the oil outlet pipe, a first external thread sleeve and a second external thread sleeve are respectively arranged at the oil outlet and an oil return port of the oil supply pipe, the first connecting sleeve is arranged on the first external thread sleeve, and the second connecting sleeve is arranged on the second external thread sleeve;

and a filtering mechanism is arranged in the external thread sleeve II.

The utility model discloses a further set up to: the filter mechanism comprises sliding chutes symmetrically formed in the inner wall of the external thread sleeve II, the sliding chutes extend inwards from the outer end of the external thread sleeve II, the bottoms of the two sliding chutes are connected with filter screens matched with the cross section of the external thread sleeve II through vertical connecting rods, the outer ends of the connecting rods are hinged with movable rods in the horizontal direction, and locking assemblies are arranged between the two movable rods and the corresponding side walls of the sliding chutes;

a torsion spring is arranged on the articulated shaft of the movable rod and the connecting rod.

The utility model discloses a further set up to: the locking subassembly is including seting up the mounting groove on the spout inner wall the opening part of mounting groove is installed and is kept off the ring, wear to be equipped with the restriction pole in the mounting groove the outer end of restriction pole is passed and is kept off the ring and be provided with the restriction tooth, the restriction tooth sets up to the inner slant of external screw thread sleeve two the inner of restriction pole is provided with the baffle be connected with the spring between baffle and the mounting groove bottom correspond the restriction tooth on the lateral wall of movable rod and be provided with the restriction tooth's socket under the effort of spring, restriction tooth joint is in the restriction tooth's socket.

To sum up, the utility model discloses following beneficial effect has:

by arranging the filtering mechanism, when a filter screen needs to be installed, only the movable rod needs to be placed along the sliding groove 21, the limiting teeth are clamped in the corresponding limiting tooth grooves under the action of the spring, when the filter screen needs to be disassembled, only the movable rod needs to be pushed into the external thread sleeve II, the limiting teeth are separated from the limiting tooth grooves, the filter screen can be disassembled and cleaned, the filter screen can filter lubricating oil, and the lubricating oil can be recycled;

through setting up the bearing seal, lubricating oil can be avoided revealing to the lubricated in-process of slide bearing.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a side cross-sectional view of the filter mechanism;

FIG. 3 is a left side view of the filter mechanism;

fig. 4 is an enlarged view of a portion a in fig. 2.

Reference numerals: 1. A base; 2. a support; 3. a motor; 4. a pump body; 5. a main shaft; 6. a coupling; 7. a driving gear; 8. a first support plate; 9. a second support plate; 10. a driven gear; 11. a sliding bearing; 12. an oil supply tank; 13. an oil inlet pipe; 14. an oil pump; 15. shaft sealing; 16. an oil outlet pipe; 17. a first connecting sleeve; 18. a second connecting sleeve; 19. a first external thread sleeve; 20. a second external thread sleeve; 21. a chute; 22. a filter screen; 23. a movable rod; 24. limiting the tooth grooves; 25. mounting grooves; 26. a baffle ring; 27. a restraining bar; 28. a restricting tooth; 29. a baffle plate; 30. a spring.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Example (b): an automatic lubricating device for a gear pump can realize the circulating lubrication action on a sliding bearing of the pump body.

Referring to fig. 1 and 2, the device comprises a base 1, a support 2 is arranged at one side of the base 1, a motor 3 is arranged on the support 2, a pump body 4 is arranged at the other side of the motor 3 on the base 1, a spindle 5 is coaxially fixed to an output shaft of the motor 3 through a coupling 6, a driving gear 7 is coaxially fixed to one end, far away from the coupling 6, of the spindle 5, penetrating through the pump body 4, a support plate I8 is fixed to the base 1, far away from the motor 3, in the pump body 4, the inner end of the spindle 5 is rotatably supported on the support plate I8 through a bearing, a support plate II 9 is fixed to a bottom plate 1, far away from the support plate I8, below the driving gear 7, a driven gear 10 is meshed with the driving gear 7, and the driven gear 10 is rotatably supported on the two support plates through a driven shaft;

the bearing structure comprises a pump body 4, a sliding bearing 11 is fixedly mounted on one side, away from a support plate I8, of the inner wall of the pump body 4, a main shaft 5 penetrates through the sliding bearing 11, an oil inlet and an oil outlet are respectively formed in the upper end and the lower end of the sliding bearing 11, an oil supply tank 12 is arranged outside the pump body 4, the oil inlet is communicated to the position below the liquid level of the oil supply pipe through an oil inlet pipe 13, the oil outlet is communicated to the oil supply tank 12 through an oil outlet pipe 16, an oil pump 14 is mounted on the oil inlet pipe 13 and located above the pump body 4, and shaft seals 15 are arranged on two sides of the sliding bearing 11.

Referring to fig. 1, a first connecting sleeve 17 and a second connecting sleeve 18 are disposed at two ends of the oil outlet pipe 16, a first external thread sleeve 19 and a second external thread sleeve 20 are disposed at oil outlets and oil return openings of the oil supply pipe, the first connecting sleeve 17 is mounted on the first external thread sleeve 19, and the second connecting sleeve 18 is mounted on the second external thread sleeve 20.

Be provided with filtering mechanism in two 20 external thread sleeves, filtering mechanism sets up spout 21 on two 20 inner walls of external thread sleeve including the symmetry, spout 21 inwards extends from the outer end of two 20 external thread sleeves, all be connected with the filter screen 22 with two 20 external thread sleeves's cross section looks adaptations through vertical connecting rod in two 21 bottoms of spout, the outer end at the connecting rod articulates there is the movable rod 23 of horizontal direction, all be provided with the locking subassembly between two movable rods 23 and the spout 21 lateral wall that corresponds, be provided with torsion spring on the articulated shaft of movable rod 23 and connecting rod.

Locking subassembly is including seting up the mounting groove 25 on spout 21 inner wall, keep off ring 26 at the opening part installation of mounting groove 25, wear to be equipped with limiting rod 27 in the mounting groove 25, it is provided with restriction tooth 28 to pass at limiting rod 27's outer end and keep off ring 26, the inside slant setting of the outside screw sleeve two 20 of restriction tooth 28, inner at limiting rod 27 is provided with baffle 29, be connected with spring 30 between baffle 29 and mounting groove 25 bottom, it is provided with restriction tooth's socket 24 to correspond restriction tooth 28 on the lateral wall of movable rod 23, under the effort of spring 30, restriction tooth 28 joint is in restriction tooth's socket 24. When the filter screen 22 needs to be installed, the movable rod 23 is only required to be placed into the sliding groove 21, the limiting teeth 28 are clamped in the corresponding limiting tooth grooves 24, when the filter screen 22 needs to be disassembled, the movable rod 23 only needs to be pushed into the second external thread sleeve 20, the limiting teeth 28 are separated from the limiting tooth grooves 24, and the filter screen 22 can be disassembled and cleaned.

The operation process is as follows: starting motor 3, motor 3 drives driving gear 7 and driven gear 10 and rotates, in order to realize the lubrication to slide bearing 11, open oil pump 14, lubricating oil gets into the lubrication that realizes slide bearing 11 from the oil inlet, realize that oil after the lubrication action flows into from the oil-out to supply oil tank 12 in, filter screen 22 realizes the filtration to lubricating oil, realizes the cyclic utilization of lubricating oil, wherein lubricating oil can be avoided revealing in the setting of bearing seal 15.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The automatic lubricating device for the gear pump is characterized by comprising a base, wherein a support is arranged at one side of the base, a motor is arranged on the support, a pump body is arranged at the other side of the motor on the base, a main shaft is coaxially fixed on an output shaft of the motor through a coupling, a driving gear is coaxially fixed at one end, far away from the coupling, of the main shaft through the pump body, a first supporting plate is fixed on the base, far away from the motor, in the pump body, the inner end of the main shaft is rotatably supported on the first supporting plate through a bearing, a second supporting plate is fixed at one side, far away from the first supporting plate, of the driving gear, a driven gear is meshed below the driving gear, and the driven gear is rotatably supported on the two supporting plates through a driven shaft;

and shaft seals are arranged on two sides of the sliding bearing.

2. The automatic lubricating device for the gear pump according to claim 1, wherein a first connecting sleeve and a second connecting sleeve are arranged at two ends of the oil outlet pipe, a first external thread sleeve and a second external thread sleeve are respectively arranged at the oil outlet and an oil return port of the oil supply pipe, the first connecting sleeve is mounted on the first external thread sleeve, and the second connecting sleeve is mounted on the second external thread sleeve;

and a filtering mechanism is arranged in the external thread sleeve II.

3. The automatic lubricating device for the gear pump is characterized in that the filtering mechanism comprises sliding chutes symmetrically formed in the inner wall of the second external thread sleeve, the sliding chutes extend inwards from the outer end of the second external thread sleeve, filter screens matched with the cross section of the second external thread sleeve are connected to the bottoms of the two sliding chutes through vertical connecting rods, movable rods in the horizontal direction are hinged to the outer ends of the connecting rods, and locking assemblies are arranged between the two movable rods and the corresponding side walls of the sliding chutes;

4. The automatic lubricating device for the gear pump, according to claim 3, characterized in that, the locking subassembly includes the mounting groove of seting up on the spout inner wall the opening part of mounting groove installs the fender ring, wear to be equipped with the restriction pole in the mounting groove the outer end of restriction pole is passed the fender ring and is provided with the restriction tooth, the inner slant of restriction tooth to external screw thread sleeve two sets up the inner of restriction pole is provided with the baffle be connected with the spring between baffle and the mounting groove bottom correspond the restriction tooth and be provided with the restriction tooth's socket on the lateral wall of movable rod under the effort of spring, restriction tooth joint is in the restriction tooth's socket.