Connecting gear set structure of gear pump

Abstract

The utility model relates to the technical field of gear pumps, in particular to a gear set connecting structure of a gear pump, which comprises a rear cover, a middle casing is mounted on the right side of the rear cover, a front cover is mounted on the right side of the middle casing, and the rear cover, the middle casing and the front cover are fixedly connected through bolt components. A driven gear shaft and a driving gear shaft are rotationally mounted among the fitting surfaces of the rear cover, the middle shell and the front cover; a movable groove is formed in the top face of the middle shell, and clamping grooves are formed in the close ends of the two driving gear shafts. A mounting structure is mounted on the inner side of the middle shell and comprises a threaded disc. According to the utility model, the two groups of driving gear shafts are connected through the insertion of the clamping blocks and the clamping grooves, and the movable blocks can be driven to move in the movable grooves by screwing off the threaded discs, so that the clamping blocks and the clamping grooves can be conveniently disassembled and assembled, the clamping blocks are convenient to repair and maintain, and the connection stability between the two groups of driving gear shafts is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of gear pumps, in particular to a connecting gear group structure of a gear pump. Background Art

[0002] With the continuous development of the industrial field, hydraulic transmission technology has been widely used. In the hydraulic transmission system, the gear pump is an important hydraulic component.

[0003] In this regard, China has applied for patent number: CN202323541715.1, which discloses a double gear pump with an independent pump group, including a front housing, the front housing is fixedly connected to a transition section, the transition section is fixedly connected to an intermediate body, the intermediate body is fixedly connected to a rear cover, a driving shaft 1 is provided inside the front housing, the driving shaft 1 is connected to the driving shaft 2 through a cross block, the driving shaft 2 is fixedly connected to the driven shaft, and a gear is fixedly connected to the driven shaft. In this utility model, a relatively independent working environment can be formed between each pump body to reduce mutual interference. The double pumps can work at the same time, superimposing the flow of the two pumps to provide a larger hydraulic flow. The double pump has a relatively independent working structure. Through reasonable control and adjustment, it can achieve precise control of the flow and pressure of the hydraulic system, improve the stability and reliability of the system, and the double gear pump with an independent pump group is insensitive to oil contamination, can withstand shock loads, is easy to maintain, and works reliably.

[0004] The gear pump can connect the driving shaft one and the driving shaft two by setting a cross block, so that the driving shaft one and the driving shaft two rotate together, and the two pumps can work simultaneously. However, the cross block is installed between the transition section and the intermediate body. When the cross block is worn and needs to be replaced, the two pump bodies need to be disassembled to replace the cross block, which is inconvenient to operate.

[0005] Therefore, in order to solve the above problems, a connecting gear set structure of a gear pump is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a connecting gear set structure of a gear pump to solve the problem that the gear pump in the prior art mentioned in the above background technology can connect the driving shaft one and the driving shaft two by setting a cross block, so that the driving shaft one and the driving shaft two rotate together, and the two pumps can work simultaneously. However, the cross block is installed between the transition section and the intermediate body. When the cross block is worn and needs to be replaced, the two pump bodies need to be disassembled to replace the cross block, which is inconvenient to operate.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a gear pump connecting gear set structure, comprising: a rear cover, an intermediate housing mounted on the right side of the rear cover, a front cover mounted on the right side of the intermediate housing, the rear cover, the intermediate housing, and the front cover being fixedly connected by a bolt assembly, a driven gear shaft and a driving gear shaft being rotatably mounted between the mating surfaces of the rear cover, the intermediate housing, and the front cover;

[0008] A movable groove is provided on the top surface of the intermediate housing, and a clamping groove is provided on the adjacent ends of the two sets of active gear shafts;

[0009] A mounting structure is installed on the inner side of the intermediate shell, and the mounting structure includes a threaded disk, which is movably mounted on the inner upper end of the movable groove through threads. A hexagonal groove is provided on the top surface of the threaded disk. A connecting rod is fixedly connected to the center of the bottom surface of the threaded disk. A sealing ring is bonded to the edge of the bottom surface of the threaded disk. The bottom end of the connecting rod is rotatably connected to a movable block. A rotating shaft is movably mounted on the inner side of the movable block through a bearing, and clamping blocks are integrally formed at both ends of the rotating shaft.

[0010] Preferably, the driven gear shaft and the driving gear shaft cooperate with each other.

[0011] Preferably, the top surface of the threaded disk is flush with the top surface of the intermediate shell, and the bottom surface of the sealing ring is in contact with the inner wall of the movable groove.

[0012] Preferably, the movable block is slidably mounted on the inner side of the movable groove.

[0013] Preferably, the rotating shaft is located between the two sets of driving gear shafts, and the rotating shaft is in contact with the two sets of driving gear shafts.

[0014] Preferably, the card block is disposed inside the card slot.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention connects the two sets of active gear shafts by plugging the card block and the card slot, and by unscrewing the threaded disk, the movable block can be driven to move in the movable slot, which can realize convenient disassembly and assembly between the card block and the card slot, making the card block easy to repair and maintain, and ensuring the connection stability between the two sets of active gear shafts.

[0016] When the movable block is disassembled, the threaded disk is rotated in the opposite direction to unscrew the threaded disk from the movable groove, and the threaded disk drives the movable block to rise in the movable groove through the connecting rod, and the movable block drives the clamping block to separate from the clamping groove through the rotating shaft, so that the connection between the two sets of active gear shafts can be released, which is convenient for maintenance of the clamping block to ensure the connection stability between the two sets of active gear shafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic front view of the structure of the present utility model;

[0018] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 3 This is a front cross-sectional schematic diagram of the structure of the intermediate shell of the present invention;

[0020] Figure 4 This is an exploded schematic diagram of the front cross-sectional structure of the intermediate shell of the present invention;

[0021] Figure 5 This is a schematic diagram of the structural explosion of the installation structure of the utility model.

[0022] In the figure: 1. Rear cover; 11. Intermediate housing; 12. Front cover; 13. Bolt assembly; 14. Movable groove; 15. Driven gear shaft; 16. Driving gear shaft; 17. Clamping slot; 2. Mounting structure; 21. Threaded disk; 22. Hexagonal socket; 23. Connecting rod; 24. Sealing ring; 25. Movable block; 26. Bearing; 27. Rotating shaft; 28. Clamping block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 5 , an embodiment provided by the utility model:

[0025] The rear cover 1, the middle shell 11, the front cover 12, the bolt assembly 13, the driven gear shaft 15 and the driving gear shaft 16 used in this application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here.

[0026] A gear pump connecting gear set structure includes: a rear cover 1, an intermediate housing 11 is mounted on the right side of the rear cover 1, and a front cover 12 is mounted on the right side of the intermediate housing 11. The rear cover 1, the intermediate housing 11, and the front cover 12 are fixedly connected by a bolt assembly 13. A driven gear shaft 15 and a driving gear shaft 16 are rotatably mounted between the contact surfaces of the rear cover 1, the intermediate housing 11, and the front cover 12.

[0027] A movable groove 14 is formed on the top surface of the intermediate housing 11, and a retaining groove 17 is formed on the adjacent ends of the two sets of driving gear shafts 16;

[0028] A mounting structure 2 is installed on the inner side of the intermediate shell 11, and the mounting structure 2 includes a threaded disk 21, which is movably mounted on the inner upper end of the movable groove 14 through a thread. A hexagonal groove 22 is provided on the top surface of the threaded disk 21, and a connecting rod 23 is fixedly connected to the center of the bottom surface of the threaded disk 21. A sealing ring 24 is bonded to the bottom edge of the threaded disk 21, and a movable block 25 is rotatably connected to the bottom end of the connecting rod 23. A rotating shaft 27 is movably mounted on the inner side of the movable block 25 through a bearing 26. A clamping block 28 is integrally formed at both ends of the rotating shaft 27. The two sets of active gear shafts 16 are connected by plugging the clamping block 28 and the clamping slot 17, and the movable block 25 can be driven to move in the movable groove 14 by unscrewing the threaded disk 21, so that the clamping block 28 and the clamping slot 17 can be conveniently disassembled and assembled, making the maintenance of the clamping block 28 convenient and ensuring the connection stability between the two sets of active gear shafts 16.

[0029] Furthermore, the driven gear shaft 15 and the driving gear shaft 16 cooperate with each other, and the rotation of the driving gear shaft 16 can drive the driven gear shaft 15 to rotate, so as to realize the transportation of liquid.

[0030] Furthermore, the top surface of the threaded disk 21 is flush with the top surface of the intermediate shell 11 , and the bottom surface of the sealing ring 24 is in contact with the inner wall of the movable groove 14 . The provision of the sealing ring 24 can ensure the sealing between the threaded disk 21 and the inner wall of the movable groove 14 .

[0031] Furthermore, the movable block 25 is slidably mounted on the inner side of the movable groove 14 . The movable block 25 can stably slide in the movable groove 14 to avoid deflection, thereby ensuring that the movable block 25 can be located between the two sets of active gear shafts 16 .

[0032] Furthermore, the rotating shaft 27 is located between the two sets of driving gear shafts 16 , the rotating shaft 27 is in contact with the two sets of driving gear shafts 16 , and the rotating shaft 27 can rotate coaxially with the driving gear shafts 16 .

[0033] Furthermore, the clamping block 28 is clamped inside the clamping slot 17 , and the two sets of active gear shafts 16 can rotate together under the cooperation of the clamping block 28 and the clamping slot 17 , thereby increasing the flow rate of the device.

[0034] Working principle: During installation, the movable block 25 is installed downwardly on the inner side of the movable groove 14, and then the threaded disk 21 is pushed downward. The threaded disk 21 drives the movable block 25 to slide downward in the movable groove 14 through the connecting rod 23. The movable block 25 is located between the two sets of active gear shafts 16. At the same time, the threaded disk 21 will move to the upper end of the movable groove 14. The hexagonal wrench is inserted into the hexagonal slot 22 and rotated. The threaded disk 21 can be screwed to the inner upper end of the movable groove 14 so that the movable block 25 is installed on the inner bottom end of the movable groove 14. When the movable block 25 moves, it will drive the rotating shaft 27 to move between the two sets of active gear shafts 16, and the clamping block 28 will be clamped inside the clamping slot 17, so that the two sets of active gear shafts 16 are connected through the rotating shaft 27, so that the two sets of active gear shafts 16 can rotate simultaneously, increasing the flow rate of the device.

[0035] During disassembly, the threaded disc 21 is rotated in the reverse direction to be unscrewed from the movable groove 14, and the threaded disc 21 drives the movable block 25 to rise in the movable groove 14 through the connecting rod 23. The movable block 25 drives the clamping block 28 to separate from the clamping groove 17 through the rotating shaft 27, thereby releasing the connection between the two sets of active gear shafts 16, making it easier to repair and maintain the clamping block 28 to ensure the connection stability between the two sets of active gear shafts 16.

[0036] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A gear pump connecting gear set structure, comprising: A rear cover (1), an intermediate housing (11) is installed on the right side of the rear cover (1), a front cover (12) is installed on the right side of the intermediate housing (11), the rear cover (1), the intermediate housing (11) and the front cover (12) are fixedly connected by a bolt assembly (13), and a driven gear shaft (15) and a driving gear shaft (16) are rotatably installed between the contact surfaces of the rear cover (1), the intermediate housing (11) and the front cover (12); Its characteristics are: A movable groove (14) is provided on the top surface of the intermediate shell (11), and a clamping groove (17) is provided on the adjacent ends of the two sets of active gear shafts (16); The inner side of the intermediate shell (11) is provided with a mounting structure (2), the mounting structure (2) comprising a threaded disk (21), the threaded disk (21) being movably mounted on the inner upper end of the movable groove (14) through a thread, the top surface of the threaded disk (21) being provided with an inner hexagonal groove (22), the center of the bottom surface of the threaded disk (21) being fixedly connected with a connecting rod (23), the bottom edge of the threaded disk (21) being bonded with a sealing ring (24), the bottom end of the connecting rod (23) being rotatably connected with a movable block (25), the inner side of the movable block (25) being movably provided with a rotating shaft (27) through a bearing (26), and both ends of the rotating shaft (27) being integrally formed with a clamping block (28).

2. The connecting gear set structure of a gear pump according to claim 1, characterized in that: The driven gear shaft (15) and the driving gear shaft (16) cooperate with each other.

3. The connecting gear set structure of a gear pump according to claim 1, characterized in that: The top surface of the threaded disc (21) is flush with the top surface of the intermediate shell (11), and the bottom surface of the sealing ring (24) is in contact with the inner wall of the movable groove (14).

4. The connecting gear set structure of a gear pump according to claim 1, characterized in that: The movable block (25) is slidably mounted on the inner side of the movable groove (14).

5. The connecting gear set structure of a gear pump according to claim 1, characterized in that: The rotating shaft (27) is located between the two sets of driving gear shafts (16), and the rotating shaft (27) is in contact with the two sets of driving gear shafts (16).

6. The connecting gear set structure of a gear pump according to claim 1, characterized in that: The card block (28) is locked inside the card slot (17).

Images