CN202811465U - Connection device of motor shaft and pump shaft of submersible pump for deep well - Google Patents

Connection device of motor shaft and pump shaft of submersible pump for deep well Download PDF

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Publication number
CN202811465U
CN202811465U CN 201220526274 CN201220526274U CN202811465U CN 202811465 U CN202811465 U CN 202811465U CN 201220526274 CN201220526274 CN 201220526274 CN 201220526274 U CN201220526274 U CN 201220526274U CN 202811465 U CN202811465 U CN 202811465U
Authority
CN
China
Prior art keywords
shaft
pump
coupling
connection
motor shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220526274
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Chinese (zh)
Inventor
方秀宝
米勇
吴刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Dongyin Technology Co., Ltd.
Original Assignee
ZHEJIANG DONGYIN PUMP CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHEJIANG DONGYIN PUMP CO Ltd filed Critical ZHEJIANG DONGYIN PUMP CO Ltd
Priority to CN 201220526274 priority Critical patent/CN202811465U/en
Application granted granted Critical
Publication of CN202811465U publication Critical patent/CN202811465U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a connection device of a motor shaft and a pump shaft of a submersible pump for a deep well, and belongs to the technical field of mechanical engineering. The connection device of the motor shaft and the pump shaft of the submersible pump for the deep well resolves the problem that the production cost of an electric pump is increased caused by an existing coupling. The connection device of the motor shaft and the pump shaft of the submersible pump for the deep well comprises a tubular coupling body, wherein the inner wall of one end of the coupling body is provided with an internal spline, an annular concave shoulder is arranged at the inner side of the other end of the coupling body, a gasket and a coupling sleeve are arranged at the position of the annular concave shoulder, the inner edge of the section of the coupling sleeve is noncircular, the coupling sleeve enables the gasket to be axially limited in a clearance mode, and the gasket and the coupling body are in radial clearance fit. The motor shaft and the pump shaft of the submersible pump for the deep well achieve movable connection by utilizing the connection device, and therefore the requirement for the coaxiality of the motor shaft and the pump shaft is lowered, production cost is lowered, the centering accuracy and rotating stability of the motor shaft and the pump shaft are improved, and the hydraulic performance of the electric pump is improved at the same time.

Description

Well motor shaft and the pump shaft connection set of submersible pump
Technical field
The utility model belongs to mechanical engineering technical field, relates to a kind of connection set, particularly a kind of well motor shaft and pump shaft connection set of submersible pump.
Background technique
Submerged Motor Pumps is all pull the plug a kind of water pump of work of the motor of pump housing impeller and drives impeller.The motor that Submerged Motor Pumps is used has dry type (motor all seals), the half dry type (seal stator of motor, and rotor turns round in water), the types such as oil-filled type (the oil-filled in case moisture of motor internal is invaded winding) and wet type (motor internal water-filling, stator and rotor all turn round in water).
Document such as the disclosed claimant of Chinese patent literature about Submerged Motor Pumps apply for ground a kind of Submersible Pump [application number: 200920120004.8; Notice of authorization number: CN201401345Y]; This electric pump in theory machine shaft and pump main shaft is concentric setting; But in actual production, can produce certain error.Machine shaft is connected by coupling with the pump main shaft, such as the disclosed a kind of water pump coupler [application number: 200520018050.9 of Chinese patent literature; Notification number: CN2786359Y], this coupling is symmetry and splits the reducing linkage structure, and an end is the pump shaft connecting groove, and the other end is the motor shaft connecting groove; This coupling can form the rigidity power transmission and can not produce swing.Although adopt this coupling can connect pump shaft and motor shaft, need to have highly coaxality between the two, this cost that must cause producing electric pump increases, and then loses the market competitiveness.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of well with motor shaft and the pump shaft connection set of submersible pump, utilizes this connection set connection electric machine main shaft and pump rotating shaft can reduce coaxality requirement between the two.
The purpose of this utility model can realize by following technical proposal: a kind of well motor shaft and pump shaft connection set of submersible pump, comprise cylindrical shaft coupling body, it is characterized in that, has internal spline on the described shaft coupling body one end madial wall, inboard, described shaft coupling body the other end has annular recessed shoulder, and the recessed shoulder of described annular place is provided with pad and the cross section inner edge is non-circular and makes the spacing coupling cover of described pad axial clearance; Described pad cooperates with shaft coupling body radial clearance.
When utilizing this well to use the motor shaft of submersible pump to be connected electric machine main shaft and pump rotating shaft with the pump shaft connection set, the shaft coupling body of this connection set can be connected by spline fitted with electric machine main shaft, and it is good therefore to have guidance quality, realizes the moving connection of shaft coupling body and electric machine main shaft.The coupling cover can be set in the pump rotating shaft, also is Spielpassung between the two; Pad can be connected with pump rotating shaft axial restraint by screw, avoids thus this connection set and pump rotating shaft generation disengaging accident.Again owing to be Spielpassung between coupling cover and the pump rotating shaft, so the pump rotating shaft can swing minutely with respect to the coupling cover swing of pump rotating shaft band mobile gasket; Namely realize the moving connection of coupling cover and pump rotating shaft.The thus error elimination that is dynamically connected between pump rotating shaft and the electric machine main shaft, the pump rotating shaft centering precision, rotational stability and the electric pump hydraulic performance that namely effectively improve.
With in the motor shaft and pump shaft connection set of submersible pump, described axial clearance is 0.15~0.25 ㎜ at above-mentioned well.
With in the motor shaft and pump shaft connection set of submersible pump, described radial clearance is 0.15~0.25 ㎜ at above-mentioned well.Drawing axial clearance through overtesting is that 0.15~0.25 ㎜ and axial clearance can guarantee transmission ground stability when being 0.15~0.25 ㎜, has again the low advantage of noise.
With in the motor shaft and pump shaft connection set of submersible pump, described coupling cover is fixedly connected by welding with the shaft coupling body at above-mentioned well.
With in the motor shaft and pump shaft connection set of submersible pump, the described shaft coupling body the other end and coupling overlap and have on the end face boundary line along the coupling axon to the tapped hole that arranges at above-mentioned well, and described tapped hole internal thread is connected with bolt.But shaft coupling body and coupling cover interference fit are pressed into the coupling body with the coupling cover first, again at the boring of boundary line place, tapping and screw-in bolt.
With in the motor shaft and pump shaft connection set of submersible pump, the quantity of described tapped hole is 2~4 and circumferentially evenly distributes along the shaft coupling body at above-mentioned well.
With in the motor shaft and pump shaft connection set of submersible pump, the through hole cross section of described coupling cover is regular hexagon at above-mentioned well.
With in the motor shaft and pump shaft connection set of submersible pump, described coupling cover inner side surface and pump rotating shaft outer side surface gap are 0.075~0.125 ㎜ at above-mentioned well.
Compared with prior art, rotating shaft is connected the connection of this connection set to make the moving connection of realization between the two to the electric machine main shaft of Submerged Motor Pumps with pump, therefore has and reduces coaxality requirement between the two, can reduce production costs.Can improve again simultaneously pump rotating shaft and machine shaft centering precision, rotational stability and electric pump hydraulic performance.
This well only comprises shaft coupling body, coupling cover and pad with the motor shaft of submersible pump and pump shaft connection set, therefore have simple in structure, convenient for production and advantage that cost is low.
Description of drawings
Fig. 1 is sectional structure schematic representation of the present utility model.
Fig. 2 is plan structure schematic representation of the present utility model.
Among the figure, 1, the shaft coupling body; 2, coupling cover; 3, pad; 4, internal spline; 5, screw; 6, pump rotating shaft; 7, tapped hole; 8, bolt.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, the electric machine main shaft of this Submerged Motor Pumps and pump rotating shaft 6 connection sets comprise shaft coupling body 1, coupling cover 2 and pad 3.
Specifically, shaft coupling body 1 is cylindrical, has internal spline 4 on the shaft coupling body 1 one end madial walls; Inboard, shaft coupling body 1 the other end has annular recessed shoulder.
Pad 3 is in the form of annular discs, and the center has screw connecting hole.Pad 3 is arranged on the annular recessed shoulder place of shaft coupling body 1; Pad 3 edges can be resisted against on the annular recessed shoulder bottom surface, so pad 3 is axially limited.Pad 3 cooperates with shaft coupling body 1 radial clearance; Radial clearance is 0.15~0.25 ㎜.
Coupling cover 2 is also cylindrical, and the through hole cross section of coupling cover 2 is non-circular, and the through hole cross section of the coupling cover 2 that present embodiment provides is regular hexagon.Connect operating mode according to reality, can select to adjust adaptively, such as rectangle.
Coupling cover 2 is positioned at the annular recessed shoulder of shaft coupling body 1, and coupling cover 2 is fixedly connected with shaft coupling body 1, so coupling overlaps 2 with pad 3 axial limitings and make pad 3 axial clearances spacing, and axial clearance is 0.15~0.25 ㎜.
Coupling overlaps 2 one end faces and shaft coupling body 1 other end flushes.Shaft coupling body 1 other end and coupling overlap and have the tapped hole 7 that axially arranges along shaft coupling body 1 on the 2 one end face boundary lines, and tapped hole 7 internal threads are connected with bolt 8.The quantity of tapped hole 7 is 2~4 and circumferentially evenly distributes along shaft coupling body 1.The quantity that this Figure of description provides is 2.
Linkage structure can also adopt following scheme to replace between coupling cover 2 and the shaft coupling body 1: coupling cover 2 with shaft coupling body 1 is fixedly connected by welding or coupling overlap 2 and shaft coupling body 1 between interference fit.
The electric machine main shaft that utilizes this Submerged Motor Pumps with pump rotating shaft are connected connection set when connecting electric machine main shaft and pump rotating shaft 6, the shaft coupling body 1 of this connection set can be connected by spline fitted with electric machine main shaft.Coupling cover 2 can be set in the pump rotating shaft 6, also is Spielpassung between the two; Coupling overlaps 2 inner side surfaces and pump rotating shaft 6 outer side surface gaps are 0.075~0.125 ㎜.Pad 3 can be connected with pump rotating shaft 6 axial restraints by screw 5.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Claims (8)

1. a well is with motor shaft and the pump shaft connection set of submersible pump, comprise cylindrical shaft coupling body (1), it is characterized in that, has internal spline (4) on described shaft coupling body (1) the one end madial wall, described shaft coupling body (1) inboard, the other end has annular recessed shoulder, and the recessed shoulder of described annular place is provided with pad (3) and the cross section inner edge is non-circular and makes the spacing coupling cover (2) of described pad (3) axial clearance; Described pad (3) cooperates with shaft coupling body (1) radial clearance.
2. well according to claim 1 is characterized in that with motor shaft and the pump shaft connection set of submersible pump described axial clearance is 0.15~0.25 ㎜.
3. well according to claim 1 is characterized in that with motor shaft and the pump shaft connection set of submersible pump described radial clearance is 0.15~0.25 ㎜.
According to claim 1 and 2 or 3 described wells with motor shaft and the pump shaft connection set of submersible pumps, it is characterized in that described coupling cover (2) is fixedly connected by welding with shaft coupling body (1).
According to claim 1 and 2 or 3 described wells with motor shaft and the pump shaft connection set of submersible pumps, it is characterized in that, have the tapped hole (7) that axially arranges along shaft coupling body (1) on described shaft coupling body (1) the other end and coupling cover (2) the one end face boundary lines, described tapped hole (7) internal thread is connected with bolt (8).
6. well according to claim 5 is characterized in that with motor shaft and the pump shaft connection set of submersible pump, and the quantity of described tapped hole (7) is 2~4 and circumferentially evenly distributes along shaft coupling body (1).
According to claim 1 and 2 or 3 described wells with motor shaft and the pump shaft connection set of submersible pumps, it is characterized in that the through hole cross section of described coupling cover (2) is regular hexagon.
8. well according to claim 7 is characterized in that with motor shaft and the pump shaft connection set of submersible pump described coupling cover (2) inner side surface and pump rotating shaft (6) outer side surface gap are 0.075~0.125 ㎜.
CN 201220526274 2012-10-15 2012-10-15 Connection device of motor shaft and pump shaft of submersible pump for deep well Expired - Fee Related CN202811465U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220526274 CN202811465U (en) 2012-10-15 2012-10-15 Connection device of motor shaft and pump shaft of submersible pump for deep well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220526274 CN202811465U (en) 2012-10-15 2012-10-15 Connection device of motor shaft and pump shaft of submersible pump for deep well

Publications (1)

Publication Number Publication Date
CN202811465U true CN202811465U (en) 2013-03-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220526274 Expired - Fee Related CN202811465U (en) 2012-10-15 2012-10-15 Connection device of motor shaft and pump shaft of submersible pump for deep well

Country Status (1)

Country Link
CN (1) CN202811465U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109209919A (en) * 2018-10-25 2019-01-15 广东江门市力源泵业有限公司 Deep well pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109209919A (en) * 2018-10-25 2019-01-15 广东江门市力源泵业有限公司 Deep well pump

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20200214

Address after: On the south side of the town of Boulder Highway in Wenling city of Taizhou City, Zhejiang province 317525

Patentee after: Zhejiang Dongyin Technology Co., Ltd.

Address before: On the south side of the town of Boulder Highway in Wenling city of Taizhou City, Zhejiang province 317525

Patentee before: Zhejiang Dongyin Pump Co., Ltd.

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130320

Termination date: 20201015

CF01 Termination of patent right due to non-payment of annual fee