A bulb-type axial flow pump with an integrated gearbox structure

Abstract

The present invention relates to a bulb-type through-flow pump with a built-in gearbox structure, comprising: a horizontally placed outer tube mechanism, a horizontally arranged inner cabin mechanism inserted in the outer tube mechanism; the inner cabin mechanism comprises: a front shield, a drainage mechanism, a flow-displacing mechanism, a flow-off mechanism, a driving mechanism, a connecting tube, and a rear shield that are horizontally connected in sequence; a front shaft is inserted in the drainage mechanism, the flow-displacing mechanism, and the flow-off mechanism, and a front coupling is coaxially arranged at the rear end of the front shaft; the outer shells of the flow-off mechanism, the driving mechanism, and the rear shield form a hollow structure, in which a rear shaft is arranged, and a rear coupling matching the front coupling is arranged at the front end of the rear shaft; a connecting tube is connected in the middle of the driving mechanism, and the connecting tube extends upward to the outside of the outer tube mechanism, which is used to penetrate the rotating shaft of the driving motor, and is convenient for maintenance personnel to enter and exit during maintenance. The bulb-type through-flow pump with a built-in gearbox structure of the present invention occupies a small area, has a stable segmented short shaft, and has a higher efficiency of the flow channel.

Description

Technical Field

[0001] The invention relates to the field of pumps, and in particular to a bulb-type tubular pump with a built-in gear box structure. Background Art

[0002] Most of the large irrigation, water transfer and drainage pumping stations in the plain areas of my country are low-lift pumping stations. In recent years, the pumping stations in the urban flood control projects and water environment management projects vigorously developed by the country are also mostly low-lift pumping stations. These pumping stations have the characteristics of low head and large flow. The hydraulic loss of the flow channel has a great influence on the efficiency of the pump device. Therefore, the through-flow pump has become the first choice in the design.

[0003] However, the current shaft-type tubular pump has problems such as a long flow channel, large construction area, long shaft system, unstable operation, complex flow channel, and low efficiency. The current bulb-type tubular pump has problems such as the motor inside the pump is inconvenient to repair and maintain, and the motor must be customized, which is expensive. Summary of the invention

[0004] In order to solve the technical problems existing in the background technology, the present invention provides a bulb-type through-flow pump with a built-in gear box structure, which occupies a small area, has a stable segmented short shaft, and has a higher flow channel efficiency.

[0005] The technical solution adopted by the present invention is:

[0006] A bulb-type through-flow pump with a built-in gear box structure comprises: a horizontally placed outer tube mechanism, wherein a horizontally placed inner chamber mechanism is inserted into the outer tube mechanism.

[0007] The inner cabin mechanism comprises:

[0008] A front guard, a drainage mechanism, a flow-displacing mechanism, a flow-breaking mechanism, a driving mechanism, a connecting tube, and a rear guard are horizontally connected in sequence from front to back;

[0009] A front shaft is inserted into the flow diversion mechanism, the flow driving mechanism, and the flow separation mechanism, and a front coupling is coaxially arranged at the rear end of the front shaft;

[0010] The de-flow mechanism, the driving mechanism and the outer shell of the rear shield form a hollow structure, in which a rear axle is arranged, and a rear coupling matching the front coupling is arranged at the front end of the rear axle;

[0011] A connecting tube is provided in the middle of the driving mechanism, and the connecting tube extends upward to the outside of the outer tube mechanism to pass the rotating shaft of the driving motor and facilitate the entry and exit of maintenance personnel during maintenance.

[0012] Furthermore, the outer tube mechanism includes:

[0013] A water inlet tube for accommodating a front shield, a drainage mechanism, and a flow-displacing mechanism;

[0014] An enlarged diameter tube for accommodating and fixing the flow-off mechanism;

[0015] A straight tube for accommodating a driving mechanism;

[0016] A reduced diameter tube for accommodating a rear shield;

[0017] The outer wall of the outer tube mechanism is provided with a plurality of groups of supporting feet extending downward.

[0018] Furthermore, the connecting tube extends upward to the outside of the straight tube.

[0019] Furthermore, a cover accommodating groove is provided in the middle of the water inlet tube, and a sealing cover is sealed at the cover accommodating groove.

[0020] Furthermore, the inner walls of the water inlet tube and the sealing cover are provided with sliding slots, and the sliding slots are arranged along the front-to-back direction.

[0021] Furthermore, the drainage mechanism comprises:

[0022] A cylindrical drainage hood has a plurality of drainage guide vanes distributed in a circular matrix along its central axis on its outer wall, a sliding card plate is provided at the end of the drainage guide vane, and the sliding card plate is movably clamped in a sliding card slot, and a front axle front seat is provided inside the drainage hood, and the front axle front seat is rotatably connected to the front axle.

[0023] Furthermore, the flow driving mechanism comprises:

[0024] A rotating seat is fixed to the front shaft and connected to the front shaft for coaxial rotation. A plurality of flow-driving blades are arranged on the outer wall of the rotating seat in a circular matrix along the central axis thereof.

[0025] Furthermore, the de-flow mechanism comprises:

[0026] A truncated cone-shaped deflow hood, the tip of which is arranged forward, a plurality of deflow guide vanes are arranged on the outer wall of the deflow hood in a circular matrix along the central axis thereof, a mechanical seal is arranged inside the tip of the deflow hood, a front axle is sealed and rotatably inserted inside the mechanical seal, a front axle rear seat is fixedly arranged inside the deflow hood, the front axle rear seat is rotatably connected to the front axle, and a through hole group is arranged on the inner wall of the deflow hood directly above the front axle.

[0027] Furthermore, the driving mechanism comprises:

[0028] A cylindrical drive cabin has a horizontal bottom base plate at the lower part of the drive cabin, on which a rear axle seat box and a gear box are fixedly arranged in sequence from front to back, the rear axle seat box is rotationally connected to the rear axle, and the rear axle is coaxially connected to the output shaft of the gear box, and the input shaft of the gear box is arranged directly below the connecting tube.

[0029] Furthermore, the cross section of the guide vane is configured to be shuttle-shaped;

[0030] The cross section of the flow-displacing blade is set to be wedge-shaped;

[0031] The cross section of the deflow guide vane is arranged to be half-moon shaped.

[0032] The advantages of the bulb-type tubular pump with a built-in gear box structure of the present invention are:

[0033] 1. The driven components are placed outside through the gear box and connecting tube to reduce the floor space;

[0034] 2. Through the segmented front and rear axles, the axial length of the rotating shaft is shortened and the stability is improved;

[0035] 3. Improve the flow channel efficiency through the structure of guide vanes, flow-driving blades and de-flowing guide vanes. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific implementation of the present invention, the drawings required in the specific implementation are briefly introduced below. The drawings in the following description are implementations of the present invention.

[0037] Figure 1 It is a general three-dimensional schematic diagram of a bulb-type tubular pump with a built-in gear box structure provided by an example of the present invention;

[0038] Figure 2 It is a cutaway perspective schematic diagram of an outer tube mechanism of a bulb-type tubular pump with a built-in gear box structure provided by an example of the present invention;

[0039] Figure 3 It is a partially enlarged stereoscopic schematic diagram of a bulb-type tubular pump with a built-in gear box structure provided by an example of the present invention;

[0040] Figure 4 The present invention provides a three-dimensional cutaway diagram of the inner chamber mechanism of a bulb-type tubular pump with a built-in gearbox structure. Figure 1 ;

[0041] Figure 5 The present invention provides a three-dimensional cutaway diagram of the inner chamber mechanism of a bulb-type tubular pump with a built-in gearbox structure. Figure 2 ;

[0042] Figure 6 It is a schematic diagram of the main cross-section of a bulb-type tubular pump with a built-in gear box structure provided by an example of the present invention;

[0043] Figure 7 The present invention provides a CFD experimental schematic diagram of a bulb-type through-flow pump with a built-in gear box structure.

[0044] In the figure:

[0045] 10. Foreign exchange control agencies,

[0046] 11. water inlet tube, 12. sealing cap, 13. enlarged diameter tube, 14. straight tube, 15. reduced diameter tube, 16. supporting foot, 111. cover slot, 121. sliding slot,

[0047] 20. Inner cabin mechanism,

[0048] 21. Front guard,

[0049] 22. Drainage mechanism, 221. Drainage cover, 222. Drainage guide vane, 223. Sliding card plate, 224. Front axle front seat,

[0050] 23. Flow-driving mechanism, 231. Rotating seat, 232. Flow-driving blade,

[0051] 24. Deflow mechanism, 241. Deflow cover, 242. Deflow guide vane, 243. Mechanical seal, 244. Front shaft rear seat, 245. Through hole group,

[0052] 25. Driving mechanism, 251. Driving cabin, 252. Cabin base plate, 253. Gear box, 254. Rear axle seat box,

[0053] 26. Connecting tube,

[0054] 27. Rear guard,

[0055] 31. front axle, 32. front coupling, 33. rear axle, 34. rear coupling. DETAILED DESCRIPTION

[0056] In order to more clearly and specifically explain the specific implementation purpose and implementation mode of the present invention, the technical solution of the present invention will be fully described below. The described embodiments are part of the embodiments of the present invention, but not all of them. Without making creative work, all other embodiments based on the embodiments described in the present invention belong to the protection scope of the present invention.

[0057] The present invention provides a bulb-type through-flow pump with a built-in gear box structure, such as Figure 1 As shown, it includes: a horizontally placed outer tube mechanism 10, the outer tube mechanism 10, as Figure 1 , Figure 2 As shown, it includes the following horizontal connections from front to back:

[0058] The water inlet tube 11 is used to accommodate the front shield 21, the drainage mechanism 22, and the flow driving mechanism 23. The middle part of the water inlet tube 11 is provided with a cover groove 111, and the cover groove 111 is sealed with a sealing cover 12. Figure 3 As shown, a sliding slot 121 is provided on the inner wall of the water inlet tube 11 and the cover 12, and the sliding slot 121 is provided along the front-back direction;

[0059] An enlarged diameter tube 13 for accommodating and fixing the flow-off mechanism 24;

[0060] A straight tube 14 for accommodating a driving mechanism 25;

[0061] A reduced diameter tube 15 for accommodating a rear shield 27;

[0062] The outer wall of the outer tube mechanism 10 is provided with a plurality of groups of supporting legs 16 extending downward.

[0063] The outer tube mechanism 10 is provided with a horizontally arranged inner cabin mechanism 20. Figure 1 , Figure 2 As shown, including:

[0064] A front shield 21, a drainage mechanism 22, a flow driving mechanism 23, a flow separation mechanism 24, a driving mechanism 25, a connecting tube 26, and a rear shield 27 are horizontally connected in sequence from front to back.

[0065] The drainage mechanism 22, such as Figure 4 , Figure 6 As shown, including:

[0066] The cylindrical drainage cover 221 has a plurality of drainage guide vanes 222 arranged in a circular matrix along the central axis thereof on the outer wall of the drainage cover 221. Figure 7 As shown, the cross-section of the guide vane 222 is set to be shuttle-shaped, and a sliding card plate 223 is set at the end of the guide vane 222. The sliding card plate 223 is movably clamped in the sliding card slot 121, and a front axle front seat 224 is set inside the guide cover 221. The front axle front seat 224 is rotatably connected to the front axle 31.

[0067] The flow driving mechanism 23 is as follows: Figure 4 , Figure 6 As shown, including:

[0068] The rotating seat 231 is fixed and coaxially rotatably connected to the front shaft 31, and a plurality of flow-driving blades 232 are arranged on the outer wall of the rotating seat 231 in a circular matrix along the central axis thereof. Figure 7 As shown, the cross section of the flow-displacing blade 232 is configured to be wedge-shaped.

[0069] The de-flow mechanism 24, such as Figure 4 , Figure 6 As shown, including:

[0070] The deflow cover 241 is truncated cone-shaped, and the tip of the deflow cover 241 is arranged forward. A plurality of deflow guide vanes 242 are arranged on the outer wall of the deflow cover 241 in a circular matrix along the central axis thereof. Figure 7 As shown, the cross-section of the deflow guide vane 242 is set to be half-moon-shaped, and a mechanical seal 243 is sealed inside the tip of the deflow cover 241. The front shaft 31 is sealed and rotatably inserted inside the mechanical seal 243. A front shaft rear seat 244 is fixedly set inside the deflow cover 241. The front shaft rear seat 244 is rotatably connected to the front shaft 31, and a through hole group 245 is set on the inner wall of the deflow cover 241 directly above the front shaft 31.

[0071] The driving mechanism 25, such as Figure 5 , Figure 6 As shown, including:

[0072] A cylindrical drive cabin 251 is provided with a horizontal bottom base plate 252 at the lower part of the drive cabin 251, and a rear axle seat box 254 and a gear box 253 are fixedly provided on the bottom base plate 252 in sequence from front to back. The rear axle seat box 254 is rotationally connected to the rear axle 33, and the rear axle 33 is coaxially connected to the output shaft of the gear box 253, and the input shaft of the gear box 253 is arranged directly below the connecting tube 26.

[0073] like Figure 4 , Figure 6 As shown, the flow diversion mechanism 22, the flow driving mechanism 23, and the flow separation mechanism 24 are provided with a front shaft 31 inserted therein, and a front coupling 32 is coaxially provided at the rear end of the front shaft 31; Figure 5 , Figure 6 As shown, the outer shells of the flow-off mechanism 24, the driving mechanism 25 and the rear shield 27 form a hollow structure, in which a rear shaft 33 is provided, and a rear coupling 34 matching the front coupling 32 is provided at the front end of the rear shaft 33; a connecting tube 26 is provided in the middle of the driving mechanism 25, and the connecting tube 26 extends upward to the outside of the straight tube 14, so as to pass the rotating shaft of the driving motor and facilitate the maintenance personnel to enter and exit during maintenance.

[0074] Based on the above, the embodiment of the bulb-type tubular pump with a built-in gearbox structure of the present invention is used as inspiration. Through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of ​​the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A bulb-type tubular pump with a built-in gearbox structure, characterized in that: include: An outer tube mechanism (10) is placed horizontally, the outer tube mechanism (10) comprising: a water inlet tube (11), an expanded diameter tube (13), a straight tube (14), and a reduced diameter tube (15) which are arranged horizontally in sequence from front to back; a cover groove (111) is arranged in the middle of the water inlet tube (11); a sealing cover (12) is sealed at the cover groove (111); and a plurality of groups of downwardly extending legs (16) are arranged on the outer wall of the outer tube mechanism (10); A horizontally arranged inner cabin mechanism (20) is inserted into the outer tube mechanism (10), and the inner cabin mechanism (20) comprises: A front protective cover (21), a drainage mechanism (22), a flow-displacing mechanism (23), a flow-breaking mechanism (24), a driving mechanism (25), a connecting tube (26), and a rear protective cover (27) are horizontally connected in sequence from front to rear; the front protective cover (21), the drainage mechanism (22), and the flow-displacing mechanism (23) are accommodated in the water inlet tube (11), the flow-breaking mechanism (24) is accommodated and fixed in the enlarged diameter tube (13), the driving mechanism (25) is accommodated in the straight tube (14), and the rear protective cover (27) is accommodated in the reduced diameter tube (15); A front shaft (31) is inserted into the flow diversion mechanism (22), the flow driving mechanism (23), and the flow separation mechanism (24), and a front coupling (32) is coaxially arranged at the rear end of the front shaft (31); The drainage mechanism (22) comprises: a cylindrical drainage cover (221), a plurality of drainage guide vanes (222) are arranged on the outer wall of the drainage cover (221) in a circular matrix along the central axis thereof, the cross section of the drainage guide vane (222) is arranged in a shuttle shape, a sliding card plate (223) is arranged at the end of the drainage guide vane (222), the sliding card plate (223) is movably arranged in the sliding card slot (121), a front axle front seat (224) is arranged inside the drainage cover (221), and the front axle front seat (224) is rotatably connected to the front axle (31); The flow-displacing mechanism (23) comprises: a rotating seat (231) fixed to and coaxially rotatably connected to the front shaft (31), a plurality of flow-displacing blades (232) being arranged on the outer wall of the rotating seat (231) in a circular matrix along the central axis thereof, and a cross section of the flow-displacing blades (232) being arranged in a wedge shape; The outer shell of the flow separation mechanism (24), the driving mechanism (25) and the rear shield (27) forms a hollow structure, in which a rear shaft (33) is arranged, and a rear coupling (34) matching the front coupling (32) is arranged at the front end of the rear shaft (33); The deflow mechanism (24) comprises: a truncated cone-shaped deflow cover (241), the tip of the deflow cover (241) is arranged forward, a plurality of deflow guide vanes (242) are arranged on the outer wall of the deflow cover (241) in a circular matrix along the central axis thereof, the cross section of the deflow guide vane (242) is arranged in a half-moon shape, a mechanical seal (243) is arranged inside the tip of the deflow cover (241), a front shaft (31) is sealed and rotatably inserted inside the mechanical seal (243), a front shaft rear seat (244) is fixedly arranged inside the deflow cover (241), the front shaft rear seat (244) is rotatably connected to the front shaft (31), and a through hole group (245) is arranged on the inner wall of the deflow cover (241) directly above the front shaft (31); The driving mechanism (25) comprises: A cylindrical drive cabin (251), wherein a horizontal cabin bottom base plate (252) is disposed at the lower part of the drive cabin (251), and a rear axle seat box (254) and a gear box (253) are fixedly disposed on the cabin bottom base plate (252) in sequence from front to back, wherein the rear axle seat box (254) is rotationally connected to the rear axle (33), and the rear axle (33) is coaxially connected to the output shaft of the gear box (253), and the input shaft of the gear box (253) is disposed directly below the connecting tube (26); A connecting tube (26) is provided in the middle of the driving mechanism (25), and the connecting tube (26) extends upward to the outside of the outer tube mechanism (10) to pass through the rotating shaft of the driving motor and facilitate the entry and exit of maintenance personnel during maintenance.

2. The bulb-type tubular pump with a built-in gearbox structure according to claim 1, characterized in that: The connecting tube (26) extends upward to the outside of the straight tube (14).

3. The bulb-type tubular pump with a built-in gearbox structure according to claim 1, characterized in that: The inner walls of the water inlet tube (11) and the sealing cover (12) are provided with sliding slots (121), and the sliding slots (121) are arranged along the front-rear direction.

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