Split type gear pump

Abstract

The utility model discloses a split type gear pump, which relates to the technical field of gear pumps, and adopts the technical scheme that the split type gear pump comprises a sealing cover, a pump shell is arranged above the sealing cover, the top of the pump shell is fixedly connected with a transmission case, the right side of the bottom of the sealing cover is fixedly connected with a fixed frame, and the left side of the bottom of the sealing cover is provided with a motor bracket; a driving motor is fixedly connected to the bottom of the motor support, an assembling mechanism is arranged in the transmission box, and a fixing mechanism is arranged in the fixing frame, so that quick assembly of the sealing cover and fixing of the motor support are achieved, and the convenience and stability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear pumps, and more specifically, to a split-type gear pump. Background Technique

[0002] A 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 liquids or increase their pressure. Although traditional integral gear pumps can meet the needs of fluid transportation to a certain extent, they also have problems such as inconvenient installation and maintenance and limited adaptability. Therefore, split-type gear pumps have emerged under the impetus of overcoming the limitations of traditional gear pumps, meeting the needs of industrial development, and technological progress, and have become one of the important devices in the modern fluid transportation field.

[0003] Existing devices mainly adopt a detachable split pump body structure. Most of the existing technologies are similar to a gear pump with a split pump cylinder. The structure of the patent No. CN218624631U includes a motor and a pump housing. The pump housing has a housing and a housing cover. A working cylinder body is formed by enclosing with a baffle plate inside the housing. A first gear and a second gear that mesh with each other are arranged in the working cylinder body. The first gear is driven by the motor, and the second gear is rotatably connected to the housing. A first waterproof groove surrounding the working cylinder body is arranged on the baffle plate, and a first waterproof ring is arranged on the waterproof groove. A water outlet pipe communicating with the working cylinder body and extending outward from the housing is arranged on one side of the housing, and a water inlet communicating with the working cylinder body is arranged on the housing cover. The utility model adopts a split structure, which is beneficial to the waterproof and wear resistance of the pump cylinder and is also easy to disassemble, making it convenient for later maintenance. However, there are still areas for optimization in this device.

[0004] Existing devices mainly use components such as multiple bolts to fix the pump housing and the cover, making it difficult to quickly assemble the cover on the pump housing for some devices, resulting in inconvenient maintenance operations for the gear pump. At the same time, some devices mainly fix the motor on the pump housing through structures such as bolts, making some fixing components prone to falling off due to the vibration of the motor, resulting in some motors being difficult to be stably clamped under the cover for a long time, reducing the working efficiency and practicality of the device. Therefore, in order to solve the above technical problems, this application proposes a split-type gear pump. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a split-type gear pump.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a cover, a pump housing is arranged above the cover, a transmission box is fixedly connected to the top of the pump housing, a fixing frame is fixedly connected to the right side of the bottom of the cover, a motor bracket is arranged on the left side of the bottom of the cover, and a driving motor is fixedly connected to the bottom of the motor bracket;

[0007] An assembly mechanism is provided inside the transmission case. The assembly mechanism includes a transmission worm. Both ends of the transmission worm are movably connected to both sides of the inner wall of the transmission case. A fixing mechanism is provided inside the fixing frame. The fixing mechanism includes a sliding plate. The top of the sliding plate is slidably connected to the top of the inner wall of the fixing frame.

[0008] Preferably, a second bevel gear is fixedly connected to the middle of the outer wall of the transmission worm. Transmission worm wheels are meshed and connected to both sides of the outer wall of the transmission worm.

[0009] Preferably, a first bevel gear is meshed and connected in front of the second bevel gear. A transmission shaft is fixedly connected to the middle of the front of the first bevel gear. The front end of the transmission shaft passes through the transmission case and is fixedly connected with an internal hexagonal torsion cap.

[0010] Preferably, a transmission screw is fixedly connected to the inner wall of the transmission worm wheel. The top of the transmission screw is movably connected to the top of the inner wall of the transmission case. The bottom end of the transmission screw passes through both sides of the pump housing top plate and is sleeved with a screw barrel. The bottom end of the screw barrel is fixedly connected to both sides of the top of the sealing cover.

[0011] Preferably, a pair of pins are fixedly connected to the left side of the sliding plate. The outer walls of the pins are respectively attached to the front and rear sides of the motor bracket. A limit sleeve is sleeved on the left end of the pin. The top of the limit sleeve is fixedly connected to the left side of the bottom of the sealing cover.

[0012] Preferably, a movable screw is fixedly connected to the middle of the right side of the sliding plate. The right end of the movable screw passes through the right side wall of the fixing frame and is fixedly connected with a movable torsion cap. A fixing nut is threadedly connected to the outer wall of the movable screw. The left side of the fixing nut is fixedly connected to the middle of the right side of the fixing frame.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] 1. In the present utility model, through structures such as the transmission worm, second bevel gear, transmission worm wheel, first bevel gear, transmission shaft, internal hexagonal torsion cap, transmission screw and screw barrel in the assembly mechanism, by clockwise rotating the internal hexagonal torsion cap, the internal hexagonal torsion cap drives the transmission shaft to rotate in a limited way, the transmission shaft drives the first bevel gear to rotate synchronously, the first bevel gear meshes and drives the second bevel gear to rotate, the second bevel gear drives the transmission worm to rotate in a limited way, the transmission worm meshes and drives the transmission worm wheel to rotate synchronously, the transmission worm wheel drives the transmission screw to rotate in a limited way, the transmission screw drives the screw barrel to slide upward, and the screw barrel drives the sealing cover to slide synchronously and fit against the bottom of the pump housing, realizing the rapid assembly of the sealing cover, enabling some devices to quickly assemble the sealing cover on the pump housing, facilitating the maintenance operation of the gear pump, and improving the convenience and practicality of the device.

[0015] 2. In the present utility model, through structures such as the sliding plate, the plug pin, the limiting sleeve, the movable screw rod, the movable torsion cap, and the fixing nut in the fixing mechanism, by clockwise rotating the movable torsion cap, the movable torsion cap drives the limiting rotation of the movable screw rod. Restricted by the fixing nut, the movable screw rod drives the sliding plate to slide left and right. The sliding plate drives the plug pin to be inserted into the limiting sleeve, so that the plug pin performs a limiting clamping on the motor bracket, realizing the fixation of the motor bracket, enabling some devices to stably clamp the motor below the cover, effectively preventing the fixing components from falling off due to the vibration of the motor, and improving the stability and practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 is the front side view three-dimensional structure diagram of the present utility model;

[0018] Figure 2 is the front view sectional three-dimensional structure diagram of the present utility model;

[0019] Figure 3 is the partial structure side view sectional three-dimensional structure diagram of the pump housing and the assembly mechanism of the present utility model;

[0020] Figure 4 is the partial structure bottom view sectional three-dimensional structure diagram of the cover and the loading and unloading mechanism of the present utility model.

[0021] 11. Cover; 12. Pump housing; 13. Transmission box; 14. Fixed frame; 15. Motor bracket; 16. Driving motor; 2. Assembly mechanism; 21. Transmission worm; 22. Second bevel gear; 23. Transmission worm gear; 24. First bevel gear; 25. Transmission shaft; 26. Allen wrench torsion cap; 27. Transmission screw; 28. Screw barrel; 3. Fixing mechanism; 31. Sliding plate; 32. Plug pin; 33. Limiting sleeve; 34. Movable screw rod; 35. Movable torsion cap; 36. Fixing nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] As Figures 1-4 shown, the present utility model provides a split-type gear pump, including a cover 11. Above the cover 11 is provided a pump housing 12. The top of the pump housing 12 is fixedly connected with a transmission box 13. The right side of the bottom of the cover 11 is fixedly connected with a fixed frame 14. On the left side of the bottom of the cover 11 is provided a motor bracket 15. The bottom of the motor bracket 15 is fixedly connected with a driving motor 16;

[0023] Inside the transmission case 13, there is an assembly mechanism 2. The assembly mechanism 2 includes a transmission worm 21. Both ends of the transmission worm 21 are movably connected to both sides of the inner wall of the transmission case 13. In the middle of the outer wall of the transmission worm 21, there is a fixedly connected second bevel gear 22. On both sides of the outer wall of the transmission worm 21, there are meshingly connected transmission worm wheels 23. Through this design, it is realized that the second bevel gear 22 drives the transmission worm 21 to rotate in a limited way, so that the transmission worm 21 meshingly drives the transmission worm wheels 23 to rotate synchronously. In front of the second bevel gear 22, there is a meshingly connected first bevel gear 24. In the middle of the front of the first bevel gear 24, there is a fixedly connected transmission shaft 25. The front end of the transmission shaft 25 passes through the transmission case 13 and is fixedly connected with an internal hexagonal twist cap 26. Through this design, it is realized that the internal hexagonal twist cap 26 drives the transmission shaft 25 and the first bevel gear 24 to rotate in a limited way, so that the first bevel gear 24 meshingly drives the second bevel gear 22 to rotate. Inside the wall of the transmission worm wheel 23, there is a fixedly connected transmission screw 27. The top of the transmission screw 27 is movably connected to the top of the inner wall of the transmission case 13. The bottom end of the transmission screw 27 passes through both sides of the top plate of the pump casing 12 and is sleeved with a screw barrel 28. The bottom end of the screw barrel 28 is fixedly connected to both sides of the top of the sealing cover 11. Through this design, it is realized that the transmission worm wheel 23 drives the transmission screw 27 to rotate in a limited way, and the transmission screw 27 drives the screw barrel 28 and the sealing cover 11 to slide up and down, which is convenient for quickly assembling the pump body assembly.

[0024] Inside the fixing frame 14, there is a fixing mechanism 3. The fixing mechanism 3 includes a sliding plate 31. The top of the sliding plate 31 is slidably connected to the top of the inner wall of the fixing frame 14. On the left side of the sliding plate 31, there are fixedly connected a pair of pins 32. The outer walls of the pins 32 are respectively attached to the front and rear sides of the motor bracket 15. The left end of the pin 32 is sleeved with a limit sleeve 33. The top of the limit sleeve 33 is fixedly connected to the bottom left side of the sealing cover 11. Through this design, it is realized that the sliding plate 31 can drive the pins 32 to slide in a limited way and be inserted into the inside of the limit sleeve 33, which is convenient for the pins 32 to limit and fix the motor bracket 15 and the driving motor 16. In the middle of the right side of the sliding plate 31, there is a fixedly connected movable screw 34. The right end of the movable screw 34 passes through the right side wall of the fixing frame 14 and is fixedly connected with a movable twist cap 35. The outer wall of the movable screw 34 is threadedly connected with a fixing nut 36. The left side of the fixing nut 36 is fixedly connected to the middle of the right side of the fixing frame 14. Through this design, it is realized that the movable twist cap 35 drives the movable screw 34 to rotate in a limited way. The movable screw 34 is restricted by the fixing nut 36, so that the movable screw 34 drives the sliding plate 31 to slide left and right, which is convenient for stably assembling the driving motor 16.

[0025] The above are only the preferred embodiments of the present utility model and do not impose any form of limitation on the present utility model; any ordinary technician in the industry can smoothly implement the present utility model according to the illustrations in the specification and the above; however, any minor changes, modifications, and equivalent variations made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are all equivalent embodiments of the present utility model; at the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the substantial technology of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A split-type gear pump, comprising a seal cover (11), characterized in that: Above the said cover (11), there is a pump housing (12). At the top of the pump housing (12), a transmission box (13) is fixedly connected. At the right side of the bottom of the cover (11), a fixing frame (14) is fixedly connected. At the left side of the bottom of the cover (11), there is a motor bracket (15). At the bottom of the motor bracket (15), a driving motor (16) is fixedly connected. Inside the transmission box (13), there is an assembling mechanism (2). The assembling mechanism (2) includes a transmission worm (21). The two ends of the transmission worm (21) are movably connected to the two sides of the inner wall of the transmission box (13). Inside the fixing frame (14), there is a fixing mechanism (3). The fixing mechanism (3) includes a sliding plate (31). The top of the sliding plate (31) is slidably connected to the top of the inner wall of the fixing frame (14).

2. The split-type gear pump according to claim 1, wherein: In the middle of the outer wall of the transmission worm (21), a second bevel gear (22) is fixedly connected. On both sides of the outer wall of the transmission worm (21), transmission worm wheels (23) are meshed and connected.

3. The split gear pump according to claim 2, wherein: In front of the second bevel gear (22), a first bevel gear (24) is meshed and connected. In the middle of the front of the first bevel gear (24), a transmission shaft (25) is fixedly connected. The front end of the transmission shaft (25) passes through the transmission box (13) and is fixedly connected with an internal hexagonal torsion cap (26).

4. The split gear pump according to claim 2, characterized in that: Inside the wall of the transmission worm wheel (23), a transmission screw rod (27) is fixedly connected. The top end of the transmission screw rod (27) is movably connected to the top of the inner wall of the transmission box (13). The bottom end of the transmission screw rod (27) passes through both sides of the top plate of the pump housing (12) and is sleeved with a screw barrel (28). The bottom end of the screw barrel (28) is fixedly connected to both sides of the top of the cover (11).

5. A split-type gear pump according to claim 1, characterized in that: On the left side of the sliding plate (31), a pair of pins (32) are fixedly connected. The outer walls of the pins (32) are respectively attached to the front and back sides of the motor bracket (15). At the left end of the pin (32), a limit sleeve (33) is sleeved. The top of the limit sleeve (33) is fixedly connected to the left side of the bottom of the cover (11).

6. The split-type gear pump according to claim 5, wherein: In the middle of the right side of the sliding plate (31), a movable screw rod (34) is fixedly connected. The right end of the movable screw rod (34) passes through the right side wall of the fixing frame (14) and is fixedly connected with a movable torsion cap (35). On the outer wall of the movable screw rod (34), a fixing nut (36) is threadedly connected. The left side of the fixing nut (36) is fixedly connected to the middle of the right side of the fixing frame (14).

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