Motor for residue treatment pump

Abstract

The utility model discloses a motor for a residue treatment pump, which comprises a motor shell, a motor shaft and a rotor, the two ends of the rotor are respectively connected with at least one bearing, the motor shaft penetrates through the bearings at the two ends of the rotor in a matched manner, and the motor shaft and the inner rings of the bearings rotate coaxially; the bearings are located in the motor shell, the motor shell is fixedly connected with outer rings of the bearings, the motor shaft penetrates through the bearings located at the two ends of the rotor in a matched mode, the motor shaft and inner rings of the bearings coaxially rotate, the outer rings of the bearings are fixedly connected with the motor shell, and in other words, the two bearings radially support the motor shaft. The motor shaft can be protected to achieve the effect of avoiding eccentric rotation of the motor shaft.

Description

Technical Field

[0001] The utility model relates to a motor for a residue processing pump. Background Art

[0002] Residue treatment pumps are commonly used in scenarios where solid particles or high-concentration substances are handled, and are now also widely used in dishwashers; in dishwashers, residue treatment pumps are designed to extract and discharge sewage and food residues in the dishwasher.

[0003] The application of the residue treatment pump in the dishwasher is described in the patent document of Chinese Patent Publication No. CN208958048U. Its feed inlet is connected to the water outlet of the dishwasher. A cutter disc for crushing materials is provided below the feed inlet. The cutter disc is connected to the shaft of the motor. The motor drives the cutter disc to rotate and crush the materials entering the residue treatment pump.

[0004] The existing residue treatment pump still has the disadvantage that the motor shaft lacks radial support. With the long-term use of the blade, the motor shaft is prone to eccentric rotation, which has a great impact on the life and safety of the motor. Utility Model Content

[0005] The utility model aims to provide a technical solution for a motor for a residue treatment pump in view of the deficiencies in the prior art. The motor shaft has radial support and can be used in the residue treatment pump to drive the blade to operate for a long time and can effectively avoid the problem of eccentric rotation of the motor shaft.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A motor for a residue treatment pump, comprising

[0008] Motor housing;

[0009] The motor shaft is used to output the power of the motor and drive the driven parts connected to it to rotate;

[0010] The rotor is used to connect with the motor shaft in the motor housing and drive the motor shaft to rotate by rotating itself;

[0011] At least one bearing is connected to both ends of the rotor. The motor shaft passes through the bearings at both ends of the rotor, and the motor shaft rotates coaxially with the inner ring of the bearing. The bearing is located in the motor housing, and the motor housing is fixedly connected to the outer ring of the bearing.

[0012] By adopting the above technical solution, the bearings located at both ends of the rotor are fitted and passed through by the motor shaft, the motor shaft and the inner ring of the bearing rotate coaxially, and the outer ring of the bearing is fixedly connected to the motor housing, that is, the two bearings form radial support for the motor shaft, which can protect the motor shaft and prevent the motor shaft from eccentric rotation.

[0013] Furthermore, the motor housing includes an upper shell, a first mounting groove is formed on the inner side of the upper shell, and the first mounting groove is interference fit with the bearing.

[0014] Furthermore, a rubber pad is detachably provided in the first installation groove, and the rubber pad is interference fit with the first installation groove.

[0015] Furthermore, the motor housing includes a lower shell, and a second mounting groove is formed on the inner side of the lower shell. The second mounting groove is used to fix the bearing of the rotor corresponding to the side of the lower shell.

[0016] Furthermore, a bearing seat is connected to the second installation groove, and a receiving space with an interference fit with the bearing is formed in the bearing seat, and the bearing seat is sleeved in the second installation groove.

[0017] Furthermore, a plurality of limiting grooves are formed on the peripheral side of the bearing seat; a corresponding number of first screw holes are opened at the bottom of the lower shell body corresponding to the limiting grooves, and a screw rod that cooperates with the limiting groove is movably arranged in the first screw hole, and the screw rod is inserted into the limiting groove to prevent the bearing seat from rotating.

[0018] Furthermore, the motor housing includes an upper shell and a lower shell, a plurality of second screw holes are formed on one side of the upper shell, and mounting holes corresponding to the second screw holes are formed through the lower shell. The upper shell and the lower shell are fixed by screws passing through the mounting holes and tightening them in cooperation with the second screw holes.

[0019] Furthermore, a positioning groove is formed on the outer side wall of the lower shell.

[0020] Furthermore, a wiring structure is provided on one side of the motor housing, and the wiring structure is connected to the motor housing through a boss structure.

[0021] Furthermore, one end of the motor shaft is connected with a blade and an impeller, and the impeller rotates coaxially with the blade.

[0022] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0023] 1. The motor shaft of the utility model has radial support, which can avoid the problem of eccentric rotation of the motor shaft;

[0024] 2. A rubber pad is provided on one side of the bearing of the utility model, and the rubber pad can play a shock-absorbing effect during the rotation of the motor shaft;

[0025] 3. A rubber pad is provided on one side of the bearing of the utility model, and the rubber pad can prevent the motor from axial deviation;

[0026] 4. The motor housing of the utility model is formed with a positioning groove, which can assist in positioning the residue treatment pump during installation and prevent the residue treatment pump from rotating and displacing during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] Figure 1 It is a structural schematic diagram of the motor of the utility model;

[0029] Figure 2 It is a structural schematic diagram of the side of the motor of the utility model;

[0030] Figure 3 This is a schematic diagram of the exploded structure of the motor of the utility model;

[0031] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0032] Figure 5 It is a schematic diagram of the bottom structure of the lower shell of the utility model;

[0033] Figure 6 This is a schematic diagram of the bottom front view of the lower shell of the utility model;

[0034] Figure 7 This is a schematic diagram of the inner side structure of the lower shell of the utility model;

[0035] Figure 8 This is a schematic diagram of the inner side structure of the upper shell of the utility model;

[0036] Fig. 9 It is a structural schematic diagram of the wiring structure of the utility model;

[0037] Fig.10 This is a structural schematic diagram of the bearing seat of the utility model;

[0038] Fig.11 This is a schematic diagram of the structure of the stator and rotor connection state of the utility model;

[0039] In the figure: 1-motor housing; 11-upper housing; 12-lower housing; 13-second screw hole; 14-mounting hole; 15-screw; 16-positioning slot; 2-motor shaft; 21-stator; 22-rotor;

[0040] 3-first mounting groove; 31-first bearing; 32-rubber pad;

[0041] 4-second mounting groove; 41-second bearing; 42-bearing seat; 43-limiting groove; 44-first screw hole;

[0042] 5-wiring structure; 51-first boss; 52-second boss; 53-first recess; 54-second recess;

[0043] 6-Impeller; 7-Blade. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0045] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0047] Example 1

[0048] A motor for a residue treatment pump, comprising a motor housing 1, such as Figure 1 As shown;

[0049] The motor housing 1 has a snap-fit ​​structure for connecting with the pump housing;

[0050] The motor housing 1 can be connected to the pump housing through a snap-fit ​​structure to form a residue treatment pump.

[0051] The motor housing 1 includes an upper housing 11 and a lower housing 12. Figure 1 , Figure 2 As shown;

[0052] In this embodiment, a plurality of second screw holes 13 are formed on one side of the upper shell 11 close to the lower shell 12. Figure 8 As shown;

[0053] A mounting hole 14 is formed at a position on the edge of the lower housing 12 corresponding to the second screw hole 13. Figure 5 , Figure 7 As shown;

[0054] In this embodiment, the upper housing 11 and the lower housing 12 are fixed by screws 15;

[0055] Furthermore, the screw 15 passes through the mounting hole 14 on the lower shell 12 and is tightened in cooperation with the second screw hole 13 on one side of the upper shell 11 , thereby achieving cooperation and fixation of the upper shell 11 and the lower shell 12 .

[0056] The motor includes a stator 21 and a rotor 22. The rotor 22 is rotatably mounted inside the stator 21. Fig.11 As shown;

[0057] The motor shaft 2 is connected to the rotor 22, and the rotor 22 can drive the motor shaft 2 to rotate coaxially with it through its own rotation;

[0058] The stator 21 is fixedly disposed inside the motor housing 1, and the rotor 22 is rotatable relative to the stator 21;

[0059] In the motor housing 1, at least one bearing is provided at each end of the rotor 22;

[0060] In this embodiment, a bearing is connected to each end of the rotor 22;

[0061] In this embodiment, the side of the rotor 22 close to the upper shell 11 is the first bearing 31, and the side of the rotor 22 close to the lower shell 12 is the second bearing 41. Figure 4 , Fig.11 As shown;

[0062] The motor shaft 2 passes through the rotor 22 and is fixed to the rotor 22. The two ends of the motor shaft 2 respectively pass through the first bearing 31 and the second bearing 41. Figure 4 As shown;

[0063] The motor shaft 2 passes through the first bearing 31 and the second bearing 41 and rotates coaxially with the inner rings of the two bearings;

[0064] The outer rings of the first bearing 31 and the second bearing 41 are both fixedly matched with the motor housing 1;

[0065] The motor shaft 2 is provided with radial support by means of the first bearing 31 and the second bearing 41 located at both ends of the rotor 22 , thereby preventing the motor shaft 2 from rotating eccentrically after long-term operation.

[0066] In this embodiment, a first mounting groove 3 is formed inside the upper shell 11. Figure 8 As shown;

[0067] The first bearing 31 can be fitted in the first mounting groove 3. Figure 4 As shown;

[0068] The first bearing 31 is interference-fitted with the first mounting groove 3. After the first bearing 31 is inserted into the first mounting groove 3, the outer ring of the first bearing 31 is fixed relative to the upper housing 11.

[0069] A second mounting groove 4 is formed inside the lower shell 12. Figure 7 As shown;

[0070] The second mounting groove 4 is used to fix the second bearing 41;

[0071] Furthermore, a bearing seat 42 is connected to the second mounting groove 4, and a receiving space adapted to the second bearing 41 is formed in the bearing seat 42. Fig.10 As shown;

[0072] The upper part of the bearing seat 42 is open, and the second bearing 41 can be put into the accommodating space of the bearing seat 42 through the opening to be matched and fixed therewith;

[0073] The second bearing 41 and the accommodating space of the bearing seat 42 are interference fit, and the bearing seat 42 is fixedly matched with the second mounting groove 4, so that the outer ring of the second bearing 41 is fixed relative to the lower housing 12;

[0074] In this embodiment, the outer rings of the first bearing 31 and the second bearing 41 are fixed to the motor housing 1 through the above solution, so that the first bearing 31 and the second bearing 41 can provide radial support for the motor shaft 2 .

[0075] The bearing seat 42 is fixedly matched with the second mounting groove 4;

[0076] In this embodiment, a plurality of first screw holes 44 are formed through the bottom of the lower housing 12. Figure 5 , Figure 6 As shown;

[0077] A plurality of limiting grooves 43 are formed on the peripheral side of the bearing seat 42. Fig.10 As shown;

[0078] The position of the first screw hole 44 corresponds to the limiting groove 43;

[0079] After the bearing seat 42 is fitted into the second mounting groove 4, a screw of a certain length is screwed into the first screw hole 44 from the bottom of the lower shell 12. The screw screwed into the first screw hole 44 can pass through the limiting groove 43 on the side of the bearing seat 42. The fitting and limiting of the screw and the limiting groove 43 can prevent the bearing seat 42 in the second mounting groove 4 from rotating.

[0080] In this embodiment, a rubber pad 32 is detachably provided in the first installation groove 3. Figure 4 , Fig.11 As shown;

[0081] The rubber pad 32 is interference fit with the first mounting groove 3;

[0082] The rubber pad 32 has a certain thickness. After the first bearing 31 is inserted into the first installation groove 3, the upper shell 11 and the lower shell 12 are connected and pressed together. The rubber pad 32 located in the first installation groove 3 is axially squeezed. Through the tension of the rubber pad 32 after being squeezed, the rubber pad 32 can axially resist the first bearing 31, and then exert an axial resisting force on the rotor 22, so as to solve the problem of axial deviation of the motor.

[0083] At the same time, the rubber pad 32 in the first mounting groove 3 can play a shock-absorbing role during the rotation of the motor shaft 2 .

[0084] In this embodiment, the outer side wall of the lower housing 12 is formed with a plurality of positioning grooves 16, such as Figure 3 , Figure 5 As shown;

[0085] The positioning groove 16 can assist the positioning of the residue treatment pump with the equipment during installation, and can also prevent the residue treatment pump from rotating and displacing during use.

[0086] A wiring structure 5 is provided on one side of the motor housing 1. Figure 1 As shown;

[0087] The wiring structure 5 is installed at the connection between the upper housing 11 and the lower housing 12, and is used to connect the wires to the motor;

[0088] The upper surface of the wiring structure 5 is formed with a first recess 53. Fig. 9 As shown;

[0089] A first boss 51 is formed on the inner side of the upper housing 11 at a position corresponding to the wiring structure 5. Figure 8 As shown;

[0090] The first recess 53 is mortise-jointed with the first boss 51;

[0091] The lower surface of the wiring structure 5 is formed with a second recess 54. Fig. 9 As shown;

[0092] A second boss 52 is formed on the inner side of the lower housing 12 at a position corresponding to the wiring structure 5. Figure 3 , Figure 7 As shown;

[0093] The second recess 54 is mortise-jointed with the second boss 52;

[0094] The wiring structure 5 is mortise-jointed with the motor housing 1 through the boss structure of the first boss 51 , the second boss 52 , the first recess 53 and the second recess 54 .

[0095] One end of the motor shaft 2 is connected with a blade 7 and an impeller 6 , and the impeller 6 and the blade 7 rotate coaxially through the motor shaft 2 .

[0096] Example 2

[0097] This embodiment is different from the first embodiment in that, in this embodiment, two ends of the rotor 22 are respectively connected to two bearings.

[0098] In this embodiment, a plurality of limiting grooves 43 are formed on the peripheral side of the bearing seat 42;

[0099] A protruding structure that cooperates with the limiting groove 43 is formed in the second mounting groove 4. The second mounting groove 4 and the bearing seat 42 achieve cooperation and limitation through the limiting groove 43 and the protruding structure, which prevents the bearing seat 42 from rotating in the second mounting groove 4. This is only a preferred limiting method. The bearing seat 42 and the second mounting groove 4 can also achieve the effect of preventing rotation through other limiting methods.

[0100] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A motor for a residue handling pump, comprising: Motor housing (1); The motor shaft (2) is used to output the power of the motor and drive the driven member connected thereto to rotate; The rotor (22) is used to be connected to the motor shaft in the motor housing and to drive the motor shaft to rotate by rotating itself; Features: At least one bearing is connected to both ends of the rotor (22); the motor shaft (2) fits through the bearings located at both ends of the rotor (22); the motor shaft (2) rotates coaxially with the inner ring of the bearing; the bearing is located in the motor housing (1); the motor housing (1) is fixedly connected to the outer ring of the bearing.

2. A motor for a residue treatment pump according to claim 1, characterized in that: The motor housing (1) comprises an upper shell (11), a first mounting groove (3) is formed on the inner side of the upper shell (11), and the first mounting groove (3) is interference fit with the bearing.

3. A motor for a residue treatment pump according to claim 2, characterized in that: A rubber pad (32) is detachably arranged in the first installation groove (3), and the rubber pad (32) is interference-fitted with the first installation groove (3).

4. A motor for a residue treatment pump according to claim 1, characterized in that: The motor housing (1) comprises a lower housing (12), a second mounting groove (4) being formed on the inner side of the lower housing (12), and the second mounting groove (4) is used to fix the bearing of the rotor (22) corresponding to the side of the lower housing (12).

5. A motor for a residue treatment pump according to claim 4, characterized in that: A bearing seat (42) is connected to the second installation groove (4), a receiving space for interference fit with the bearing is formed in the bearing seat (42), and the bearing seat (42) is sleeved in the second installation groove (4).

6. A motor for a residue treatment pump according to claim 5, characterized in that: A plurality of limiting grooves (43) are formed on the peripheral side of the bearing seat (42); a corresponding number of first screw holes (44) are opened at the bottom of the lower shell (12) corresponding to the limiting grooves (43); screw rods cooperating with the limiting grooves (43) are movably arranged in the first screw holes (44); the screw rods cooperating with the limiting grooves (43) can prevent the bearing seat (42) from rotating when inserted into the limiting grooves (43).

7. The motor for a residue treatment pump according to claim 1, characterized in that: The motor housing (1) comprises an upper housing (11) and a lower housing (12); a plurality of second screw holes (13) are formed on one side of the upper housing (11); a mounting hole (14) corresponding to the second screw holes (13) is formed through the lower housing (12); the upper housing (11) and the lower housing (12) are fixed by screws (15) passing through the mounting holes (14) and then being tightened in cooperation with the second screw holes (13).

8. The motor for a residue treatment pump according to claim 7, characterized in that: A positioning groove (16) is formed on the outer side wall of the lower shell (12).

9. The motor for a residue treatment pump according to claim 1, characterized in that: A wiring structure (5) is provided on one side of the motor housing (1), and the wiring structure (5) is connected to the motor housing (1) via a boss structure.

10. The motor for a residue treatment pump according to claim 1, characterized in that: One end of the motor shaft (2) is connected to a blade (7) and an impeller (6), and the impeller (6) rotates coaxially with the blade (7).

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