Mounting structure of submersible pump

Abstract

The utility model provides a mounting structure of a submersible pump, and belongs to the technical field of pumps. The technical problem that a filtering structure is relatively complex is solved. An installation structure of a submersible pump comprises a pump shell, a motor shell and an installation base, a rotating shaft is rotationally connected to the installation base, one end of the rotating shaft extends into the motor shell to be fixedly connected with a rotor, and the other end of the rotating shaft extends into the pump shell to be fixedly connected with an impeller. The mounting seat is provided with a mounting disc and a mounting boss axially protruding out of the mounting disc, the mounting disc is embedded into the annular mounting groove, a stepped hole is formed in the mounting boss, a bearing is arranged in the stepped hole, and a fixing circular ring protrudes out of the rotating shaft; one end of the impeller is fixed to the rotating shaft, and the other end of the impeller is suspended and does not make contact with the pump shell. The supporting device is stable in supporting. The filtering and the installation are simple and convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of pumps, in particular to an installation structure of a submersible pump. Background Art

[0002] Submersible pumps are widely used, and can be used to pump muddy water, rainwater, etc. For example, a submersible pump with Chinese patent number 201110034324.3 discloses a filter body arranged on the outer cover of the pump for filtering, and the structure is relatively complex. How to make the filter installation structure simple and easy to install, and not affect the overall support structure of the pump, so that the pump is more stable when working. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a mounting structure for a submersible pump.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a mounting structure of a submersible pump, comprising a pump casing and a motor casing that are detachably fixedly connected, a mounting seat being fixed between the pump casing and the motor casing, a rotating shaft being rotatably connected to the mounting seat, one end of the rotating shaft extending into the motor casing and fixedly connected to the rotor, and the other end extending into the pump casing and fixedly connected to the impeller, an upper mounting groove being arranged on the motor casing, a lower mounting groove being arranged on the pump casing, the upper mounting groove and the lower mounting groove together forming an annular mounting groove, the mounting seat having a mounting disc and a mounting boss axially protruding from the mounting disc, the mounting disc being embedded in the annular mounting groove, a step hole being arranged in the mounting boss, a bearing being arranged in the step hole, a fixing ring protruding from the rotating shaft, the rotating shaft passing through the step hole so that the fixing ring abuts against the bearing, one end of the impeller being fixed to the rotating shaft and the other end being suspended in the air and not in contact with the pump casing.

[0005] This solution embeds the mounting seat in the annular mounting groove and fixes the mounting seat so that the mounting seat can be relatively stably located between the motor housing and the pump housing, which can better support the rotation of the rotating shaft. One end of the impeller is suspended from the fixed end of the rotating shaft, which reduces the axial space and makes the overall structure of the pump more compact.

[0006] Furthermore, the mounting disc and the upper mounting groove are sealed by a first seal, the mounting disc and the lower mounting groove are sealed by a second seal, and the inner circumference of the mounting boss and the outer circumference of the rotating shaft are sealed by a third seal.

[0007] Furthermore, the middle part of the upper end of the impeller has an upwardly protruding mounting ring, the inner circumference of the mounting ring protrudes a fixing block, the lower end of the rotating shaft has a recessed fixing groove, the mounting ring is embedded in the rotating shaft so that the fixing block and the fixing groove cooperate, and the middle part of the lower end of the rotating shaft is also provided with a threaded hole, the impeller is threadedly fixed to the threaded hole through a fixing piece 1, and the fixing piece 1 abuts against the top of the impeller.

[0008] This solution provides an upwardly protruding mounting ring and embeds the mounting ring into the rotating shaft, thereby increasing the contact area between the rotating shaft and the impeller and allowing the impeller to rotate more stably. The impeller is fixed in the axial, circumferential and radial directions through the cooperation of the fixing block and the fixing groove and the fixation of the fixing piece, so that it can rotate synchronously with the rotating shaft better.

[0009] Furthermore, the impeller has a downwardly protruding fixed truncated cone in the middle, the fixed truncated cone is provided with a threaded hole opening upward, and the lower part of the rotating shaft is provided with an external thread matching the threaded hole of the fixed truncated cone.

[0010] In this solution, a downwardly protruding fixed truncated platform is provided, and the rotating shaft is embedded in the fixed truncated platform and fixed by threads, thereby increasing the contact area between the rotating shaft and the impeller and making the impeller rotate more stably.

[0011] Furthermore, a water inlet piece is provided below the pump housing, and a sealing gasket is provided between the pump housing and the motor housing. The inner circumference of the sealing gasket is tightly fitted with the outer circumference of the mounting disc. The motor housing, sealing gasket, pump housing and water inlet piece are fixed in sequence from bottom to top by fastener 2.

[0012] Furthermore, the water inlet is in the shape of a truncated cone with a small top and a large bottom. The water inlet is provided with a filter on its outer cover, and the filter is fixedly connected to the water inlet. First, the filter is inserted from the upper part of the water inlet and fixed, and then the water inlet, the motor housing, the sealing gasket, and the pump housing are fixed in sequence. Subsequent disassembly and installation are also convenient, and the filter can also stably filter.

[0013] Furthermore, the filter element is threadedly clamped and fixed to the bottom and the bottom of the water inlet element.

[0014] Furthermore, the outer peripheral surface of the bottom of the water inlet has a plurality of inwardly concave grooves, the grooves have a suspended hook-shaped block, the upper end of the hook-shaped block is integrally formed with the water inlet, the filter is provided with a slot relative to the hook-shaped block, and the lower end of the hook-shaped block is fixed in the slot, so as to facilitate disassembly and installation.

[0015] Compared with the prior art, the technical effects of the utility model are as follows: the mounting seat is embedded in the annular mounting groove and fixed, so that the mounting seat can be relatively stably located between the motor housing and the pump housing, and can better support the rotation of the rotating shaft. One end of the impeller and the fixed end of the rotating shaft are suspended in the air, which reduces the axial space and makes the pump structure more compact. The impeller can rotate more stably by increasing the contact area between the rotating shaft and the impeller. The filter element is easy to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the utility model.

[0017] Figure 2It is a half-section stereoscopic view of the impeller and the rotating shaft of the utility model.

[0018] Figure 3 It is a three-dimensional diagram of the utility model.

[0019] Figure 4 It is a cross-sectional view of a first embodiment of a water inlet component and a filter component of the utility model.

[0020] Figure 5 It is a sectional stereoscopic view of a second embodiment of the water inlet component and the filter component of the utility model.

[0021] Figure number marking: 1. Pump housing; 101. Lower mounting groove; 2. Motor housing; 201. Upper mounting groove; 3. Mounting seat; 301. Mounting disc; 302. Mounting boss; 303. Step hole; 4. Rotating shaft; 401. Fixed ring; 402. Fixed groove; 5. Rotor; 6. Impeller; 601. Mounting ring; 602. Fixed block; 603. Fixed table; 7. Bearing; 701. Fixed ring; 8. Seal one; 9. Seal two; 10. Seal three; 11. Fixed part; 12. Water inlet part; 1201. Groove; 1202. Hook-shaped block; 13. Sealing gasket; 14. Fastener two; 15. Filter; 1501. Slot. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] It should be noted that the descriptions of the present invention regarding directions such as "up", "down", "left", "right", "top" and "bottom" are all defined based on the relationships between the orientations or positions shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0024] according to Figures 1 to 3As shown, a submersible pump installation structure comprises a pump casing 1 and a motor casing 2 which are detachably fixedly connected, a stator, a rotor 5 and a rotating shaft 4 are installed in the motor casing 2, and an impeller 6 is installed in the pump casing 1. A mounting seat 3 is fixed between the pump casing 1 and the motor casing 2, and a rotating shaft 4 is rotatably connected to the mounting seat 3, one end of the rotating shaft 4 extends into the motor casing 2 and is fixedly connected to the rotor 5, and the other end extends into the pump casing 1 and is fixedly connected to the impeller 6. An upper mounting groove 201 is provided on the motor casing 2, and a lower mounting groove 101 is provided on the pump casing 1, and the upper mounting groove 201 and the lower mounting groove 101 are surrounded to form an annular mounting groove. The mounting seat 3 has a mounting disc 301 and a mounting boss 302 axially protruding from the mounting disc 301, and the mounting disc 301 is embedded in the annular mounting groove. The mounting disc 301 is sealed with the upper mounting groove 201 by a seal 1 8, the mounting disc 301 is sealed with the lower mounting groove 101 by a seal 2 9, and the inner circumference of the mounting boss 302 is sealed with the outer circumference of the rotating shaft 4 by a seal 3 10. The mounting boss 302 has a step hole 303, and a bearing 7 is arranged in the step hole 303. A fixing ring 701401 protrudes from the rotating shaft 4. The rotating shaft 4 passes through the step hole 303 so that the fixing ring 701401 abuts against the bearing 7. One end of the impeller 6 is fixed to the rotating shaft 4 and the other end is suspended and does not contact the pump housing 1. By embedding the mounting seat 3 in the annular mounting groove and fixing the mounting seat 3, the mounting seat 3 can be relatively stably located between the motor housing 2 and the pump housing 1, and can better support the rotation of the rotating shaft 4. One end of the impeller 6 is fixed to the rotating shaft 4 and the other end is suspended, which reduces the axial space and makes the overall structure of the pump more compact.

[0025] according to Figure 1 As shown, regarding the first implementation method of fixing the impeller 6 and the rotating shaft 4, a mounting ring 601 protrudes upward from the middle of the upper end of the impeller 6, a fixing block 602 protrudes from the inner circumference of the mounting ring 601, a fixing groove 402 is recessed at the lower end of the rotating shaft 4, the mounting ring 601 is embedded in the rotating shaft 4 so that the fixing block 602 and the fixing groove 402 cooperate, and a threaded hole is also provided in the middle of the lower end of the rotating shaft 4, the impeller 6 is threadedly fixed to the threaded hole through a fixing piece 11, and the fixing piece 11 is against the top of the impeller 6.

[0026] according to Figure 2 As shown, regarding the second implementation method of fixing the impeller 6 and the rotating shaft 4, a fixing truncated platform 603 protrudes downward from the middle of the impeller 6, the fixing truncated platform 603 is provided with a threaded hole opening upward, and the lower part of the rotating shaft 4 is provided with an external thread that matches the threaded hole of the fixing truncated platform 603. The fixing truncated platform 603 protrudes downward, and the rotating shaft 4 is embedded in the fixing truncated platform 603 and fixed by threads, so as to increase the contact area between the rotating shaft 4 and the impeller 6 and make the impeller 6 rotate more stably.

[0027] A water inlet part 12 is also provided below the pump housing 1, and a sealing gasket 13 is also provided between the pump housing 1 and the motor housing 2. The inner circumference of the sealing gasket 13 is tightly fitted with the outer circumference of the mounting disc 301. The motor housing 2, the sealing gasket 13, the pump housing 1 and the water inlet part 12 are fixed in sequence from bottom to top by fasteners 14.

[0028] The water inlet 12 is in the shape of a truncated cone with a small top and a large bottom. A filter 15 is disposed on the outer cover of the water inlet 12, and the filter 15 is fixedly connected to the water inlet 12. First, the filter 15 is inserted from the upper part of the water inlet 12 and fixed, and then the water inlet 12 and the motor housing 2, the sealing gasket 13, and the pump housing 1 are fixed in sequence. Subsequent disassembly and installation are also convenient, and the filter 15 can also stably filter.

[0029] according to Figure 4 As shown, the filter element 15 is threadedly clamped and fixed to the bottom of the water inlet element 12 .

[0030] according to Figure 5 As shown, the outer peripheral surface of the bottom of the water inlet member 12 has a plurality of inwardly recessed grooves 1201, and a suspended hook-shaped block 1202 is provided in the groove 1201. The upper end of the hook-shaped block 1202 is integrally formed with the water inlet member 12, and the filter member 15 is provided with a slot 1501 relative to the position of the hook-shaped block 1202. The lower end of the hook-shaped block 1202 is fixed with the slot 1501 for easy disassembly and installation.

[0031] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. A submersible pump installation structure, comprising a pump housing (1) and a motor housing (2) which are detachably fixedly connected, a mounting seat (3) being fixedly provided between the pump housing (1) and the motor housing (2), a rotating shaft (4) being rotatably connected to the mounting seat (3), one end of the rotating shaft (4) extending into the motor housing (2) and being fixedly connected to a rotor (5), and the other end extending into the pump housing (1) and being fixedly connected to an impeller (6), characterized in that: The motor housing (2) is provided with an upper mounting groove (201), and the pump housing (1) is provided with a lower mounting groove (101). The upper mounting groove (201) and the lower mounting groove (101) are combined to form an annular mounting groove. The mounting seat (3) has a mounting disc (301) and a mounting boss (302) axially protruding from the mounting disc (301). The mounting disc (301) is embedded in the annular mounting groove. The mounting boss (302) has a step hole (303). A bearing (7) is arranged in the step hole (303). A fixing ring (401) protrudes from the rotating shaft (4). The rotating shaft (4) passes through the step hole (303) so that the fixing ring (401) abuts against the bearing (7). One end of the impeller (6) is fixed to the rotating shaft (4) and the other end is suspended and does not contact the pump housing (1).

2. A submersible pump installation structure according to claim 1, characterized in that: The mounting disc (301) and the upper mounting groove (201) are sealed by a seal 1 (8), the mounting disc (301) and the lower mounting groove (101) are sealed by a seal 2 (9), and the inner circumference of the mounting boss (302) and the outer circumference of the rotating shaft (4) are sealed by a seal 3 (10).

3. A submersible pump installation structure according to claim 2, characterized in that: The middle part of the upper end of the impeller (6) has an upwardly protruding mounting ring (601), the inner circumferential surface of the mounting ring (601) protrudes with a fixing block (602), the lower end of the rotating shaft (4) is recessed with a fixing groove (402), the mounting ring (601) is embedded in the rotating shaft (4) so ​​that the fixing block (602) and the fixing groove (402) cooperate, and the middle part of the lower end of the rotating shaft (4) is also provided with a threaded hole, the impeller (6) is threadedly fixed to the threaded hole through a fixing member (11), and the fixing member (11) is against the upper part of the impeller (6).

4. A submersible pump installation structure according to claim 2, characterized in that: The impeller (6) has a downwardly protruding fixed truncated platform (603) in the middle, the fixed truncated platform (603) is provided with a threaded hole opening upward, and the lower part of the rotating shaft (4) is provided with an external thread matching the threaded hole of the fixed truncated platform (603).

5. A submersible pump installation structure according to any one of claims 1 to 4, characterized in that: A water inlet component (12) is also provided below the pump housing (1), and a sealing gasket (13) is also provided between the pump housing (1) and the motor housing (2). The inner circumference of the sealing gasket (13) is tightly fitted with the outer circumference of the mounting disc (301). The motor housing (2), the sealing gasket (13), the pump housing (1) and the water inlet component (12) are fixed in sequence from bottom to top by fastener 2 (14).

6. A submersible pump installation structure according to claim 5, characterized in that: The water inlet member (12) is in the shape of a truncated cone with a small top and a large bottom. A filter member (15) is provided on the outer cover of the water inlet member (12). The filter member (15) is fixedly connected to the water inlet member (12).

7. A submersible pump installation structure according to claim 6, characterized in that: The filter element (15) is threadedly clamped and fixed to the bottom and the bottom of the water inlet element (12).

8. The installation structure of a submersible pump according to claim 6, characterized in that: The outer peripheral surface of the bottom of the water inlet component (12) has a plurality of inwardly recessed grooves (1201), and a suspended hook-shaped clamping block (1202) is provided in the groove (1201); the upper end of the hook-shaped clamping block (1202) is integrally formed with the water inlet component (12); the filter component (15) is provided with a clamping groove (1501) at a position relative to the hook-shaped clamping block (1202), and the lower end of the hook-shaped clamping block (1202) is fixedly matched with the clamping groove (1501).

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