CN214787970U - Connecting structure of pump and motor - Google Patents
Connecting structure of pump and motor Download PDFInfo
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- CN214787970U CN214787970U CN202120373061.8U CN202120373061U CN214787970U CN 214787970 U CN214787970 U CN 214787970U CN 202120373061 U CN202120373061 U CN 202120373061U CN 214787970 U CN214787970 U CN 214787970U
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Abstract
The utility model discloses a connection structure of pump and motor, including the pump body, motor, pump body center is equipped with the pump shaft, the pump shaft terminal surface indent is equipped with the cooperation groove, the motor center is equipped with the pivot, the pivot center is equipped with the through-hole, wear to establish the connecting piece in the through-hole, pivot inner is equipped with the cooperation portion, cooperation portion inserts cooperation inslot cooperation, connecting piece one end offsets with the inner wall of cooperation portion, the other end of connecting piece exposes in the pivot outer end, stimulates cooperation portion and the tight cooperation of cooperation groove bloated after connecting piece, the outside deformation of connecting piece drive cooperation portion. The utility model provides a connection structure of pump and motor that axial length is little, compact structure, and convenient assembling, assembly efficiency are high.
Description
Technical Field
The invention relates to the technical field of pumps, in particular to a connecting structure of a pump and a motor.
Background
The pump needs to be driven by the motor, the pump shaft of pump and the pivot of motor need to pass through the coupling joint usually, the casing of coupling bracket connection pump and the casing of motor simultaneously, the structure is comparatively complicated, the longer occupation space of axial length is great, high in production cost, the assembly is complicated, low in assembly efficiency, also partial pump shaft overlaps with the pivot and establishes on the pump shaft and connect through tightening the screw through processing out the hough structure in the pivot after, but need set up the trompil that is used for supplying the screw rod of tightening the screw to pass through on the motor lateral wall, influence motor structural performance, and the operating point is inside the motor, it is more difficult to observe, the dismouting is inconvenient, its manufacturing procedure of pivot processing hough structure is more simultaneously, the processing cost is higher.
Disclosure of Invention
The invention aims to provide a connecting structure of a pump and a motor, which has the advantages of small axial length, compact structure, convenience in assembly and high assembly efficiency.
The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a connection structure of pump and motor, includes the pump body, motor, pump body center is equipped with the pump shaft, the pump shaft terminal surface indent is equipped with the cooperation groove, the motor center is equipped with the pivot, the pivot center is equipped with the through-hole, wear to establish the connecting piece in the through-hole, pivot inner is equipped with cooperation portion, cooperation portion inserts cooperation inslot cooperation, connecting piece one end offsets with the inner wall of cooperation portion, the other end of connecting piece exposes in the pivot outer end, stimulates cooperation portion expands with the cooperation groove and tightly cooperates after connecting piece, the outside deformation of connecting piece drive cooperation portion.
Compared with the prior art, the invention has the advantages that: the setting of shaft coupling and shaft coupling support has been cancelled, has reduced holistic axial length, has reduced spare part quantity, the cost is reduced, during the assembly, at first penetrates the connecting piece in the through-hole, inserts the cooperation groove that the pump shaft processed with the cooperation portion of the inner of pivot again, stimulates in the outer end of pivot the connecting piece, the inside drive cooperation portion of connecting piece outwards warp so that cooperation portion and cooperation groove expand tightly, and overall structure is simple, saves the cost, and assembly efficiency is high, and can be in order to accomplish the operation that the inner of pivot is connected or unclamped with the pump shaft in the pivot outer end, easy dismounting.
Preferably, the cooperation portion is equipped with a plurality of opening along the axial, the inner wall of cooperation portion is first toper face, the outer wall of the one end of connecting piece is second toper face, connecting piece axial outside removal back second toper face and the cooperation of first toper face are outwards warp with the drive cooperation portion.
Preferably, the outer end of the connecting piece is a thread, a first locking nut is arranged at the thread and matched with the outer end face of the rotating shaft, the first locking nut abuts against the outer end face of the rotating shaft, and the first locking nut is rotated to drive the connecting piece to be pulled outwards in the axial direction.
Preferably, a first bearing is arranged at the pump shaft, and a second bearing is arranged at the outer end of the rotating shaft.
Preferably, be equipped with the cooperation section in the pivot, cooperation section and rotor cooperation, the one end of cooperation section is equipped with the step that is used for offsetting with the one end of rotor, the other end of cooperation section is equipped with the external screw thread, external screw thread department is equipped with second lock nut, second lock nut offsets in order to be spacing with rotor and pivot axial with the other end of rotor.
Preferably, an axial key arranged along the axial direction is arranged between the matching part and the matching groove.
Preferably, the matching portion is provided with a first key groove, the matching groove is internally provided with a second key groove, and the first key groove and the second key groove form a key groove used for being matched with the shaft key.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a perspective view of the matching structure of the rotating shaft and the connecting member.
Fig. 3 is a schematic view of a shaft key structure arranged at the position of the rotating shaft.
Shown in the figure: 1. a pump body; 1.1, a pump shaft; 1.2, matching grooves; 2. a motor; 2.1, a rotating shaft; 2.1.1, a matching part; 2.1.2, opening; 2.1.3, steps; 3. a connecting member; 4. a first lock nut; 5. a first bearing; 6. a second bearing; 7. a rotor; 8. a second lock nut; 9. and (4) shaft keys.
Detailed Description
Embodiments of the present invention are further described below with reference to the accompanying drawings.
As shown in FIGS. 1-3,
the utility model provides a connection structure of pump and motor 2, which comprises a pump body 1, motor 2, 1 center of the pump body is equipped with pump shaft 1.1, pump shaft 1.1 terminal surface indent is equipped with cooperation groove 1.2, motor 2 center is equipped with pivot 2.1, pivot 2.1 center is equipped with the through-hole, wear to establish connecting piece 3 in the through-hole, pivot 2.1 inner is equipped with cooperation portion 2.1.1, cooperation portion 2.1.1 inserts cooperation groove 1.2 fit, 3 one end of connecting piece offsets with the inner wall of cooperation portion 2.1.1, the other end of connecting piece 3 exposes in pivot 2.1 outer end, pulling connecting piece 3, the outside tight cooperation that expands of cooperation portion 2.1.1 and cooperation groove 1.2 of cooperation after connecting piece 3 drive cooperation portion 2.1.1 outwards deforms.
Wherein, cooperation portion 2.1.1 is equipped with a plurality of opening 2.1.2 along the axial, and the inner wall of cooperation portion 2.1.1 is first toper face, and the outer wall of the one end of connecting piece 3 is second toper face, and connecting piece 3 axial outside moves back second toper face and the cooperation of first toper face outwards warp with drive cooperation portion 2.1.1. Connecting piece 3 receives the outside pulling back of axial, produces thrust through the second toper face to first toper face, owing to be equipped with opening 2.1.2, so cooperation portion 2.1.1 radially outwards produces deformation, thereby make cooperation portion 2.1.1's outer wall and cooperation groove 1.2's inner wall expand tightly, only need cancel connecting piece 3's pulling during the dismantlement, cooperation portion 2.1.1 and cooperation groove 1.2's the tight cancellation that expands, the dismouting is all more convenient.
Wherein, the outer end of connecting piece 3 is the screw thread, and the cooperation of screw thread department is equipped with first lock nut 4, and first lock nut 4 offsets with the outer terminal surface of pivot 2.1, rotates first lock nut 4 and outwards pulls with 3 axial of drive connecting piece.
Wherein, pump shaft 1.1 department is equipped with first bearing 5, the outer end of pivot 2.1 is equipped with second bearing 6, installation back pivot 2.1 and pump shaft 1.1 an organic whole and concentric rotation, owing to set up first bearing 5 in pump shaft 1.1 department, just can cancel the bearing that pivot 2.1 inner originally set up, the cost is saved, assembly efficiency is improved, and first bearing 5 and second bearing 6 set up respectively at both ends, can provide better normal running fit, it has the setting of the three bearing of bearing in addition to compare in the inner of pivot 2.1 originally, it rotates the concentricity better, bearing wearing and tearing and noise are still less.
Wherein, be equipped with the cooperation section on pivot 2.1, cooperation section and rotor 7 cooperation, the one end of cooperation section is equipped with the one end counterbalance of step 2.1.3 and rotor 7, the other end of cooperation section is equipped with the external screw thread, external screw thread department is equipped with second lock nut 8, second lock nut 8 offsets in order to be spacing with rotor 7 and pivot 2.1 axial with the other end of rotor 7, rotor 7 weight is great itself, in order to avoid long-term use in-process rotor 7's axial float, it is spacing through step 2.1.3 and second lock nut 8, the stability of rotor 7 operation has been improved.
As shown in fig. 3, an axial key 9 is axially disposed between the mating portion 2.1.1 and the mating groove 1.2, and after the axial key 9 is disposed, the mating between the pump shaft 1.1 and the rotating shaft 2.1 is more reliable, and the stability of operation and the service life can be improved, compared with the form of driving only by friction force after expansion.
Wherein, be equipped with first keyway on the cooperation portion 2.1.1, be equipped with the second keyway in the cooperation groove 1.2, first keyway constitutes with the second keyway and is used for the keyway with axle key 9 complex.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. All changes which come within the scope of the invention as defined by the independent claims are intended to be embraced therein.
Claims (7)
1. The utility model provides a connection structure of pump and motor, includes the pump body (1), motor (2), its characterized in that: the pump body (1) center is equipped with pump shaft (1.1), pump shaft (1.1) terminal surface indent is equipped with cooperation groove (1.2), motor (2) center is equipped with pivot (2.1), pivot (2.1) center is equipped with the through-hole, wear to establish connecting piece (3) in the through-hole, pivot (2.1) inner is equipped with cooperation portion (2.1.1), cooperation portion (2.1.1) inserts cooperation groove (1.2) fit in, connecting piece (3) one end offsets with the inner wall of cooperation portion (2.1.1), the other end of connecting piece (3) is revealed to be put in pivot (2.1) outer end, stimulates cooperation portion (2.1.1) and cooperation groove (1.2) expand tight cooperation behind connecting piece (3), connecting piece (3) drive cooperation portion (2.1.1) the outward deformation.
2. A pump-motor connecting structure according to claim 1, wherein: the cooperation portion (2.1.1) is equipped with a plurality of opening (2.1.2) along the axial, the inner wall of cooperation portion (2.1.1) is first toper face, the outer wall of the one end of connecting piece (3) is second toper face, connecting piece (3) axial outside removal back second toper face and first toper face cooperation are outwards out of shape with drive cooperation portion (2.1.1).
3. A pump-motor connecting structure according to claim 1, wherein: the outer end of the connecting piece (3) is a thread, a first locking nut (4) is arranged at the thread, the first locking nut (4) is abutted to the outer end face of the rotating shaft (2.1), and the first locking nut (4) is rotated to drive the connecting piece (3) to be pulled outwards in the axial direction.
4. A pump-motor connecting structure according to claim 1, wherein: the pump shaft (1.1) is provided with a first bearing (5), and the outer end of the rotating shaft (2.1) is provided with a second bearing (6).
5. A pump-motor connecting structure according to claim 1, wherein: be equipped with the cooperation section on pivot (2.1), the cooperation section cooperates with rotor (7), the one end of cooperation section is equipped with step (2.1.3) that are used for offsetting with the one end of rotor (7), the other end of cooperation section is equipped with the external screw thread, external screw thread department is equipped with second lock nut (8), second lock nut (8) offset in order to be spacing with rotor (7) and pivot (2.1) axial with the other end of rotor (7).
6. A pump-motor connecting structure according to claim 1, wherein: and an axial key (9) arranged along the axial direction is arranged between the matching part (2.1.1) and the matching groove (1.2).
7. A pump-motor connecting structure according to claim 6, wherein: the shaft key is characterized in that a first key groove is formed in the matching portion (2.1.1), a second key groove is formed in the matching groove (1.2), and the first key groove and the second key groove form a key groove used for being matched with the shaft key (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120373061.8U CN214787970U (en) | 2021-02-10 | 2021-02-10 | Connecting structure of pump and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120373061.8U CN214787970U (en) | 2021-02-10 | 2021-02-10 | Connecting structure of pump and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214787970U true CN214787970U (en) | 2021-11-19 |
Family
ID=78753414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120373061.8U Active CN214787970U (en) | 2021-02-10 | 2021-02-10 | Connecting structure of pump and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214787970U (en) |
-
2021
- 2021-02-10 CN CN202120373061.8U patent/CN214787970U/en active Active
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