CN216714697U

CN216714697U - High-efficient gear pump of bull-dozer chassis

Info

Publication number: CN216714697U
Application number: CN202123260078.1U
Authority: CN
Inventors: 叶斌
Original assignee: Huai'an Santai Precision Manufacturing Co ltd
Current assignee: Huai'an Santai Precision Manufacturing Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-06-10
Anticipated expiration: 2031-12-23

Abstract

The utility model provides a high-efficiency gear pump for a bulldozer chassis, which comprises a gear pump box, wherein a driving gear and a driven gear are rotatably connected inside the gear pump box, an input pipe is arranged on the surface of one side of the gear pump box, an output pipe is arranged on the surface of the other side of the gear pump box, an annular table is fixedly connected inside the output pipe, a sealing plug and an insertion plug are inserted into the inner side of the annular table, a sealing ring is arranged on the surface of the insertion plug, and a connecting rod is fixedly connected on the surface of the sealing plug. This high-efficient gear pump of bull-dozer chassis is through setting up annular platform, sealing plug, inserting stopper, sealing washer, control wheel, centrifugal piece, spring beam, tight pulley, spout, connecting rod, reset spring and drive belt to reached and stayed the inside liquid of gear box, directly carried when convenient next time starting the gear pump without the exhaust air, the effect of the efficiency of carrying liquid is improved.

Description

High-efficient gear pump of bull-dozer chassis

Technical Field

The utility model relates to the technical field of gear pumps, in particular to a high-efficiency gear pump for a bulldozer chassis.

Background

Gear pumps are rotary pumps that deliver or pressurize fluid by virtue of the change in working volume and movement created between a pump cylinder and a meshing gear. Two gears, pump body and front and back covers form two closed spaces, when the gears rotate, the space on the gear disengagement side becomes larger from smaller to larger to form vacuum to suck liquid, and the space on the gear engagement side becomes smaller from larger to smaller to squeeze liquid into the pipeline. The suction chamber and the discharge chamber are separated by a meshing line of two gears. The pressure at the discharge of the gear pump is entirely dependent on the amount of resistance at the pump outlet.

However, the conventional gear pump needs to idle for a period of time when the gear pump starts to operate, and air in the gear pump is removed to pump out liquid, so that the efficiency of conveying the liquid by the gear pump is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the prior gear pump needs to idle for a period of time when just starting to operate and can pump out liquid by removing air in the gear pump, thereby reducing the efficiency of the gear pump for conveying the liquid, and the utility model realizes the purpose that the liquid in the pump and in the inlet and outlet pipe can be automatically locked when the gear pump stops working, so that the liquid can be quickly conveyed when the gear pump is restarted, and the utility model is realized by the following technical scheme: the utility model provides a high-efficient gear pump of bull-dozer chassis, includes the gear pump case, the inside of gear pump case is rotated and is connected with driving gear and driven gear, a side surface of gear pump case is provided with the input tube, the opposite side surface of gear pump case is provided with the output tube, the inside fixedly connected with annular platform of output tube, the inboard of annular platform is pegged graft and is had the sealing plug and insert the stopper, the surface of inserting the stopper is provided with the sealing washer, the fixed surface of sealing plug is connected with the connecting rod, the surface of input tube is rotated and is connected with the control wheel, the surface of control wheel articulates there is centrifugal piece, the surface of centrifugal piece articulates there is the spring beam, the fixed surface of input tube is connected with the tight pulley, the spout has been seted up to the inboard of tight pulley, the inside of spout is provided with reset spring.

Furthermore, a threaded hole is formed in the surface of the gear pump box, a sealing gasket is placed on the surface of one side provided with the threaded hole, and the sealing gasket is hollowed out at the threaded hole.

The gear pump cover is characterized by further comprising a gear pump cover, wherein a bolt is arranged on the surface of the gear pump cover and is in threaded connection with the threaded hole; the surface of the gear pump cover is rotatably connected with a power shaft, the surface of the power shaft is in transmission connection with a transmission belt, and the power shaft is in transmission connection with the control wheel through the transmission belt.

Furthermore, the driving gear is meshed with the driven gear and is fixedly connected with the power shaft.

Further, the inner structure and the outer structure of the input pipe and the output pipe are the same, and are symmetrical about the center of a connecting line of the input pipe and the output pipe.

Furthermore, the plug is fixedly connected with the sealing plug, the inner side surface of the sealing ring is tightly attached to the surface of the plug, the outer side surface of the sealing ring is tightly attached to the inner side surface of the annular table, and one end of the connecting rod is connected in the sliding groove in a sliding mode and located on the rotating track of the centrifugal block.

Furthermore, one end of the return spring is connected with the connecting rod, one end of the spring rod is hinged with the centrifugal block, and the other end of the spring rod is hinged with the control wheel.

The utility model provides a high-efficiency gear pump for a bulldozer chassis. The method has the following beneficial effects:

1. according to the efficient gear pump for the bulldozer chassis, by arranging the annular table, the sealing plug, the insertion plug, the sealing ring, the control wheel, the centrifugal block, the spring rod, the fixed wheel, the chute, the connecting rod, the reset spring and the transmission belt, the annular table is arranged in the input pipe and the output pipe, one end, far away from the gear pump box, of the annular table is sealed by the sealing plug, the inner part of the annular table is inserted by the insertion plug and is sealed by matching with the sealing ring, so that liquid in the gear box is retained, and the gear pump can be conveniently and directly conveyed without exhausting air when being started next time;

2. according to the efficient gear pump for the bulldozer chassis, a power shaft drives a control wheel to rotate through a transmission belt during operation, the control wheel drives a centrifugal block hinged on the control wheel to rotate, one end of the centrifugal block opens towards the outer side of the control wheel under the centrifugal action, a connecting rod is driven to slide towards the outer side of a fixed wheel along a sliding groove, a sealing plug and an insertion plug are driven by the connecting rod to move out of an annular table, so that an input pipe and an output pipe are generally dredged, and the effect that the gear pump can normally work by automatically opening the seal of a gear pump box during operation is achieved;

3. this high-efficient gear pump of bull-dozer chassis, the during stop work, power shaft stall, the connecting rod returns the normal position under the reset spring effect, drive the sealing plug and insert the stopper and seal annular platform again, and take a section distance with input tube and output tube to the direction of gear pump case in the in-process that removes the seal, and form pressure in it and prevent wherein liquid outflow, thereby reached and guaranteed to have liquid in input tube and the output tube always, the effect of direct transport when conveniently starting the gear pump next time.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2 is an enlarged view of portion A of FIG. 1 according to the present invention.

Fig. 3 is an enlarged view of a portion of the control wheel of fig. 1 in accordance with the present invention.

In the figure: 1. a gear pump case; 2. a threaded hole; 3. sealing gaskets; 4. a driving gear; 5. a driven gear; 6. an input tube; 7. an output pipe; 8. an annular table; 9. a sealing plug; 10. inserting a plug; 11. a seal ring; 12. a control wheel; 13. a centrifugal block; 14. a spring lever; 15. a fixed wheel; 16. a chute; 17. a connecting rod; 18. a return spring; 19. a gear pump cover; 20. a bolt; 21. a power shaft; 22. a transmission belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the efficient gear pump of the bulldozer chassis is as follows:

referring to fig. 1-3, a bulldozer chassis high-efficiency gear pump comprises a gear pump box 1, a driving gear 4 and a driven gear 5 are rotatably connected inside the gear pump box 1, an input pipe 6 is arranged on one side surface of the gear pump box 1, an output pipe 7 is arranged on the other side surface of the gear pump box 1, an annular table 8 is fixedly connected inside the output pipe 7 and used for sealing the input pipe 6 and the output pipe 7 by matching with a sealing plug 9, liquid inside the input pipe 6 and the output pipe 7 is pumped to the gear pump box 1 for a certain distance by matching with an insertion plug 10 and a sealing ring 11 in the sealing process, the sealing plug 9 and the insertion plug 10 are inserted into the inner side of the annular table 8, the sealing ring 11 is arranged on the surface of the insertion plug 10, a connecting rod 17 is fixedly connected on the surface of the sealing plug 9, a control wheel 12 is rotatably connected on the surface of the input pipe 6, and a centrifugal block 13 is hinged on the surface of the control wheel 12, when the gear pump stops working, the connecting rod 17 is triggered to slide, the surface of the centrifugal block 13 is hinged with the spring rod 14, the surface of the input tube 6 is fixedly connected with the fixed wheel 15, the inner side of the fixed wheel 15 is provided with the sliding groove 16, the inner part of the sliding groove 16 is provided with the return spring 18, and the gear pump resets the connecting rod 17.

Threaded hole 2 is seted up on the surface of gear pump case 1, and seal gasket 3 has been placed to one side surface that is provided with threaded hole 2, and seal gasket 3 has seted up the fretwork in threaded hole 2 department, increases the leakproofness that gear pump case 1 and gear pump cover 19 are connected. The gear pump cover 19 is further included, a bolt 20 is arranged on the surface of the gear pump cover 19, and the bolt 20 is in threaded connection with the threaded hole 2; the surface of the gear pump cover 19 is rotatably connected with a power shaft 21, the surface of the power shaft 21 is in transmission connection with a transmission belt 22, the power shaft 21 is in transmission connection with the control wheel 12 through the transmission belt 22, and the power shaft 21 drives the control wheel 12 to rotate through the transmission belt 22 during operation. The driving gear 4 is meshed with the driven gear 5, the driving gear 4 is fixedly connected with the power shaft 21, and the power shaft 21 drives the driving gear 4 to rotate and drives the driven gear 5 meshed with the driving gear 4 to rotate.

The input pipe 6 and the output pipe 7 have the same inner and outer structures and are symmetrical about the center of the connecting line of the input pipe 6 and the output pipe 7, and the input pipe 6 and the output pipe 7 are sealed when the gear pump does not work. The plug 10 is fixedly connected with the sealing plug 9, the inner side surface of the sealing ring 11 is tightly attached to the surface of the plug 10, the outer side surface is tightly attached to the inner side surface of the annular table 8, one end of the connecting rod 17 is slidably connected in the chute 16, and on the rotating track of the centrifugal block 13, the centrifugal block 13 drives the sealing plug 9 and the plug 10 to move away from the annular table 8 by driving the connecting rod 17 in the centrifugal process. One end of a return spring 18 is connected with the connecting rod 17, one end of a spring rod 14 is hinged with the centrifugal block 13, the other end of the spring rod is hinged with the control wheel 12, and the connecting rod 17 and the centrifugal block 13 are reset when the centrifugal block does not work.

When the centrifugal type liquid conveying device is used, the power shaft 21 drives the driving gear 4 and the driven gear 5 meshed with the driving gear 4 to rotate, suction is generated at the position of the input pipe 6 and is discharged to the output pipe 7, meanwhile, the power shaft 21 drives the control wheel 12 to rotate through the driving belt 22, the control wheel 12 rotates to drive the centrifugal block 13 hinged to the control wheel to rotate, one end of the centrifugal block 13 opens towards the outer side of the control wheel 12 under the centrifugal effect, the connecting rod 17 is driven to slide towards the outer side of the fixed wheel 15 along the sliding groove 16, the sealing plug 9 and the inserting plug 10 are driven to move out of the annular table 8 through the connecting rod 17, the input pipe 6 and the output pipe 7 are normally dredged, and liquid can be normally conveyed.

When the gear pump box stops working, the power shaft 21 stops rotating, the connecting rod 17 returns to the original position under the action of the return spring 18 to drive the sealing plug 9 and the insertion plug 10 to seal the annular platform 8 again, the input pipe 6 and the output pipe 7 are drawn out for a certain distance in the direction of the gear pump box 1 in the process of moving the sealing, pressure is formed in the input pipe 6 and the output pipe 7 to prevent liquid in the input pipe from flowing out, and therefore air does not need to be discharged when the lower side works.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-efficient gear pump of bull-dozer chassis, includes gear pump case (1), its characterized in that: the gear pump box is characterized in that a driving gear (4) and a driven gear (5) are rotatably connected to the inside of the gear pump box (1), an input pipe (6) is arranged on one side surface of the gear pump box (1), an output pipe (7) is arranged on the other side surface of the gear pump box (1), an annular table (8) is fixedly connected to the inside of the output pipe (7), a sealing plug (9) and an insertion plug (10) are inserted into the inner side of the annular table (8), a sealing ring (11) is arranged on the surface of the insertion plug (10), a connecting rod (17) is fixedly connected to the surface of the sealing plug (9), a control wheel (12) is rotatably connected to the surface of the input pipe (6), a centrifugal block (13) is hinged to the surface of the control wheel (12), a spring rod (14) is hinged to the surface of the centrifugal block (13), and a fixed wheel (15) is fixedly connected to the surface of the input pipe (6), a sliding groove (16) is formed in the inner side of the fixed wheel (15), and a return spring (18) is arranged inside the sliding groove (16).

2. The efficient gear pump for the bulldozer base according to claim 1, characterized in that: the surface of the gear pump box (1) is provided with a threaded hole (2), a sealing gasket (3) is placed on the surface of one side provided with the threaded hole (2), and the sealing gasket (3) is hollowed out at the threaded hole (2).

3. The efficient gear pump for the bulldozer base according to claim 2, characterized in that: the gear pump cover is characterized by further comprising a gear pump cover (19), wherein a bolt (20) is arranged on the surface of the gear pump cover (19), and the bolt (20) is in threaded connection with the threaded hole (2); the surface of the gear pump cover (19) is rotationally connected with a power shaft (21), the surface of the power shaft (21) is in transmission connection with a transmission belt (22), and the power shaft (21) is in transmission connection with the control wheel (12) through the transmission belt (22).

4. The efficient gear pump for the bulldozer base according to claim 3, characterized in that: the driving gear (4) is meshed with the driven gear (5), and the driving gear (4) is fixedly connected with the power shaft (21).

5. The efficient gear pump for the bulldozer base according to claim 1, characterized in that: the inner structure and the outer structure of the input pipe (6) and the output pipe (7) are the same, and the inner structure and the outer structure are symmetrical about the center of a connecting line of the input pipe and the output pipe.

6. The efficient gear pump for the bulldozer base according to claim 1, characterized in that: the plug (10) is fixedly connected with the sealing plug (9), the inner side surface of the sealing ring (11) is tightly attached to the surface of the plug (10), the outer side surface of the sealing ring is tightly attached to the inner side surface of the annular table (8), and one end of the connecting rod (17) is connected in the sliding groove (16) in a sliding mode and is located on the rotating track of the centrifugal block (13).

7. The efficient gear pump for the bulldozer base according to claim 1, characterized in that: one end of the return spring (18) is connected with the connecting rod (17), one end of the spring rod (14) is hinged with the centrifugal block (13), and the other end of the spring rod is hinged with the control wheel (12).