High-temperature oil liquid gear pump

Abstract

The utility model relates to a high-temperature oil liquid gear pump in the technical field of gear pumps, which comprises a cylinder body and a liquid pumping gear set arranged in the cylinder body, a liquid pumping cavity is arranged in the cylinder body, a driving shaft extending outwards is arranged on one side of the cylinder body, a torque increasing driving disc is sleeved in the middle of the driving shaft, the torque increasing driving disc is of an annular hollow structure, and the liquid pumping gear set is arranged in the cylinder body. An inner tooth groove is formed in the inner wall of the torque increasing driving disc, a torque increasing conversion assembly is arranged between the torque increasing driving disc and the torque conversion disc, the torque increasing driving disc and the torque conversion disc can be in connection transmission through the torque increasing conversion assembly, and the torque increasing driving disc in the middle of the driving shaft is connected in an inserted mode through the torque conversion disc. According to the gear pump, the stress torque of an external driving element on the driving shaft is improved, the torque of the gear pump can be improved without changing parameters of the motor, high-temperature oil in the cylinder body can be extracted, and the gear pump is easy to operate, efficient, practical, simple in structure and suitable for large-range popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of gear pumps, in particular to a high-temperature oil gear pump. 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] The existing gear pump needs to control the torque of the motor to extract the oil inside the cylinder in the oil containing high-temperature oil residue. Therefore, in view of these current situations, it is urgent to develop a high-temperature oil gear pump to meet the needs of practical use. Summary of the invention

[0004] The utility model aims to solve the above defects and provide a high-temperature oil gear pump.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A high-temperature oil gear pump comprises a cylinder body and a pumping gear set arranged inside the cylinder body, the interior of the cylinder body is a pumping cavity, a driving shaft extending outward is arranged on one side of the cylinder body, one end of the driving shaft extends into the cylinder body and is movably connected with the pumping gear set, a transmission key is arranged on the other end of the driving shaft, the transmission key is embedded on one side of the surface of the driving shaft, a torque-increasing driving disk is sleeved in the middle of the driving shaft, the torque-increasing driving disk is an annular hollow structure, the inner wall of the torque-increasing driving disk is provided with an inner tooth groove, the middle part of the driving shaft is provided with an outer tooth groove corresponding to the inner tooth groove, and the torque-increasing driving disk is provided with a plurality of teeth. The torque-increasing driving disk is connected to the driving shaft by meshing between the inner tooth groove and the outer tooth groove. A torque conversion disk is provided at one end of the driving shaft away from the cylinder body. The inner wall of the rear end of the torque conversion disk is provided with a driving tooth groove that cooperates with the transmission key. The inner wall of the front end of the torque conversion disk is provided with a retreating tooth groove. The torque conversion disk can be moved at one end of the driving shaft so that the transmission key can be switched between the retreating tooth groove and the driving tooth groove. A torque-increasing conversion component is provided between the torque-increasing driving disk and the torque conversion disk. The torque-increasing driving disk and the torque conversion disk can be connected and transmitted through the torque-increasing conversion component.

[0007] In the above description, as a further solution, the torque conversion assembly is composed of a plurality of torque increasing shafts, and the torque increasing shafts are respectively arranged on the edge of one side of the torque conversion disk. A torque increasing shaft hole corresponding to the torque increasing shaft is provided on one side of the torque increasing drive disk. The torque conversion disk can be moved at one end of the driving shaft so that the torque increasing shaft is inserted into the interior of the torque increasing shaft hole, so that the torque increasing drive disk and the torque conversion disk are connected and transmitted.

[0008] In the above description, as a further solution, a front cylinder cover is provided on the side of the cylinder body close to the torque-increasing drive disk, the driving shaft passes through the interior of the front cylinder cover and is movably connected to the pumping gear set, and a rear cylinder cover is provided on the side of the cylinder body away from the torque-increasing drive disk.

[0009] In the above description, as a further solution, a waterproof ring is provided in the middle of the driving shaft, and the waterproof ring is located at the connection between the front cylinder cover and the cylinder body.

[0010] In the above description, as a further solution, a liquid inlet hole and a liquid outlet hole are respectively provided on both sides of the cylinder body, and the liquid inlet hole and the liquid outlet hole are both connected to the liquid pumping cavity, and the liquid inlet hole and the liquid outlet hole are respectively located on both sides of the liquid pumping gear set.

[0011] In the above description, as a further solution, the liquid pumping gear group includes a driven pump gear and a driving pump gear. The driving pump gear and the driven pump gear can be rotatably installed inside the liquid pumping cavity, and the end of the driving shaft away from the transmission key is fixedly connected to the driving pump gear assembly.

[0012] In the above description, as a further solution, a base for supporting the cylinder body is provided at the bottom of the cylinder body.

[0013] The beneficial effects produced by the utility model are as follows:

[0014] A high-temperature oil gear pump of the present application is connected and plugged to a torque-increasing driving disk in the middle of the driving shaft through a torque conversion disk, thereby increasing the force torque of the external driving element on the driving shaft. The gear pump can increase the torque and extract the high-temperature oil inside the cylinder without changing the parameters of the motor. The operation is simple, efficient and practical. At the same time, its structure is simple and suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a high-temperature oil gear pump according to the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a high-temperature oil gear pump described in the utility model;

[0017] Figure 3 A schematic diagram of a partial cross-sectional structure of a high-temperature oil gear pump according to the utility model;

[0018] In the figure: 1-cylinder body, 2-liquid inlet hole, 3-liquid outlet hole, 4-base, 5-rear cylinder head, 6-front cylinder head, 7-torque increasing drive plate, 8-driving shaft, 9-waterproof ring, 10-transmission key, 11-driven pump gear, 12-driving pump gear, 13-liquid pumping cavity, 14-inner tooth groove, 15-torque increasing shaft hole, 16-outer tooth groove, 17-torque increasing shaft rod, 18-plug hole, 19-retreat tooth groove, 20-drive tooth groove, 21-torque conversion plate. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0020] See also Figure 1-3 A high-temperature oil gear pump specifically implemented therein comprises a cylinder body 1 and a pumping gear set arranged inside the cylinder body 1. The interior of the cylinder body 1 is a pumping cavity 13. A driving shaft 8 extending outward is arranged on one side of the cylinder body 1. One end of the driving shaft 8 extends into the interior of the cylinder body 1 and is movably connected with the pumping gear set. A transmission key 10 is arranged on the other end of the driving shaft 8. The transmission key 10 is embedded on one side of the surface of the driving shaft 8. A torque-increasing driving disk 7 is sleeved on the middle part of the driving shaft 8. The torque-increasing driving disk 7 is an annular hollow structure. An inner tooth groove 14 is arranged on the inner wall of the torque-increasing driving disk 7. An outer tooth groove 16 corresponding to the inner tooth groove 14 is arranged in the middle part of the driving shaft 8. The torque-increasing driving disk 7 passes through the inner tooth groove 14. The inner tooth groove 14 is meshed with the outer tooth groove 16 to connect the torque-increasing driving disk 7 with the driving shaft 8. The end of the driving shaft 8 away from the cylinder body 1 is provided with a torque conversion disk 18. The inner wall of the rear end of the torque conversion disk 18 is provided with a driving tooth groove 20 that cooperates with the transmission key 10. The inner wall of the front end of the torque conversion disk 18 is provided with a retreating tooth groove 19. The torque conversion disk 18 can be moved at one end of the driving shaft 8 so that the transmission key 10 can switch between the retreating tooth groove 19 and the driving tooth groove 20. A torque-increasing conversion component is provided between the torque-increasing driving disk 7 and the torque conversion disk 18, and the torque-increasing driving disk 7 and the torque conversion disk 18 can be connected and transmitted through the torque-increasing conversion component.

[0021] The torque conversion assembly is composed of a plurality of torque increasing shafts 17, and the torque increasing shafts 17 are respectively arranged on the edge of one side of the torque conversion disk 18. A torque increasing shaft hole 15 corresponding to the torque increasing shaft 17 is provided on one side of the torque increasing drive disk 7. The torque conversion disk 18 can be moved at one end of the driving shaft 8 so that the torque increasing shaft 17 is inserted into the interior of the torque increasing shaft hole 15, so that the torque increasing drive disk 7 and the torque conversion disk 18 are connected and transmitted.

[0022] A front cylinder cover 6 is provided on the side of the cylinder body 1 close to the torque-increasing driving disk 7, a driving shaft 8 passes through the interior of the front cylinder cover 6 and is movably connected to the pumping gear set, a rear cylinder cover 5 is provided on the side of the cylinder body 1 away from the torque-increasing driving disk 7, a waterproof ring 9 is provided in the middle of the driving shaft 8, and the waterproof ring 9 is located at the connection between the front cylinder cover 6 and the cylinder body 1.

[0023] A liquid inlet 2 and a liquid outlet 3 are respectively provided on both sides of the cylinder body 1. The liquid inlet 2 and the liquid outlet 3 are both communicated with the liquid pumping cavity 13. The liquid inlet 2 and the liquid outlet 3 are respectively located on both sides of the liquid pumping gear set.

[0024] The liquid pumping gear set includes a driven pump gear 11 and a driving pump gear 12. Both the driving pump gear 12 and the driven pump gear 11 can be rotatably installed inside the liquid pumping cavity 13. The end of the driving shaft 8 away from the transmission key 10 is fixedly connected to the driving pump gear 12 assembly. The bottom of the cylinder body 1 is provided with a base 4 for supporting the cylinder body 1.

[0025] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A high-temperature oil gear pump, comprising a cylinder body and a pumping gear set arranged inside the cylinder body, the interior of the cylinder body is a pumping cavity, characterized in that: A driving shaft extending outward is provided on one side of the cylinder body, one end of the driving shaft extends into the inside of the cylinder body and is movably connected with the pumping gear set, and a transmission key is provided on the other end of the driving shaft, and the transmission key is embedded in one side of the surface of the driving shaft, and a torque increasing driving disk is sleeved in the middle of the driving shaft, and the torque increasing driving disk is an annular hollow structure, and the inner wall of the torque increasing driving disk is provided with an inner tooth groove, and the middle part of the driving shaft is provided with an outer tooth groove corresponding to the inner tooth groove, and the torque increasing driving disk is meshed between the inner tooth groove and the outer tooth groove, so that the torque increasing driving disk is connected to the driving shaft, and a torque conversion disk is sleeved at one end of the driving shaft away from the cylinder body, and a driving tooth groove that cooperates with the transmission key is provided on the inner wall of the rear end of the torque conversion disk, and a retreating tooth groove is provided on the inner wall of the front end of the torque conversion disk, and the torque conversion disk can be moved at one end of the driving shaft so that the transmission key switches between the retreating tooth groove and the driving tooth groove, and a torque increasing conversion component is provided between the torque increasing driving disk and the torque conversion disk, and the torque increasing driving disk and the torque conversion disk can be connected and transmitted through the torque increasing conversion component.

2. A high temperature oil gear pump according to claim 1, characterized in that: The torque conversion assembly is composed of a plurality of torque increasing shafts, which are respectively arranged on the edge of one side of the torque conversion disk. One side of the torque increasing drive disk is provided with a torque increasing shaft hole corresponding to the torque increasing shaft. The torque conversion disk can be moved at one end of the driving shaft so that the torque increasing shaft is inserted into the interior of the torque increasing shaft hole, so that the torque increasing drive disk and the torque conversion disk are connected and transmitted.

3. A high temperature oil gear pump according to claim 1, characterized in that: A front cylinder cover is arranged on one side of the cylinder body close to the torque increasing drive disc, a driving shaft passes through the interior of the front cylinder cover and is movably connected to the pumping gear set, and a rear cylinder cover is arranged on one side of the cylinder body away from the torque increasing drive disc.

4. A high temperature oil gear pump according to claim 3, characterized in that: A waterproof ring is provided in the middle of the driving shaft, and the waterproof ring is located at the connection between the front cylinder cover and the cylinder body.

5. A high temperature oil gear pump according to claim 1, characterized in that: A liquid inlet hole and a liquid outlet hole are respectively arranged on both sides of the cylinder body, and both the liquid inlet hole and the liquid outlet hole are communicated with the liquid pumping cavity, and the liquid inlet hole and the liquid outlet hole are respectively located on both sides of the liquid pumping gear set.

6. A high temperature oil gear pump according to any one of claims 1 to 5, characterized in that: The pumping gear set comprises a driven pump gear and a driving pump gear, both of which are rotatably mounted inside the pumping cavity, and one end of the driving shaft away from the transmission key is fixedly connected to the driving pump gear assembly.

7. A high temperature oil gear pump according to any one of claims 1 to 6, characterized in that: A base for supporting the cylinder body is provided at the bottom of the cylinder body.

Images