CN209354419U - A kind of shaft coupling for water pump - Google Patents

Abstract

The utility model embodiment is related to a kind of shaft coupling for water pump, including bearing inner seat, deep groove ball bearing, the first shaft coupling and the second shaft coupling；Bearing inner seat includes connecting column and inner seat ontology, and one end of connecting column is connected with inner seat ontology；Deep groove ball bearing is socketed on connecting column, and is pressed on inner seat ontology by atmospheric pressure machine；First shaft coupling includes pedestal and interconnecting piece, pedestal is connected with one end of interconnecting piece, pedestal is equipped with second threaded hole equal with the first screw thread hole number, is worn by screw and penetrates the first threaded hole and the second threaded hole, the first shaft coupling is made to be fixed on the bottom of inner seat ontology；Second shaft coupling includes two identical sub- shaft couplings, two sub- shaft couplings are oppositely arranged, form the first cavity and the second cavity, two sub- shaft couplings are clamped and connected the other end in portion and one end of pump shaft, to which the other end of interconnecting piece to be fixed in the first cavity, one end of pump shaft is fixed in the second cavity.

Description

A kind of shaft coupling for water pump

Technical field

The utility model relates to vertical multi-stage single-suction centrifugal pump field more particularly to a kind of shaft couplings for water pump.

Background technique

Most of positive coupling used in centrifugal multistage pump multiple centrifugal pump is integral type shaft coupling at present, and structure is as shown in Figure 1, sleeve Shaft coupling 300 is to utilize public sleeve, and pass through the rigid attachments parts such as key, spline or taper pin, to realize pump shaft 100 and motor The connection of axis 200, this kind of 300 mounting means of shaft coupling are as follows: after Water pump head installs, shaft coupling 300 is installed to water pump On axis 100.Motor is lifted on the lantern stand of pump later, is aligned after keyway and motor shaft 200 is penetrated into coupling sleeve.Position After fixation, lantern stand and motor flange fastening bolt are screwed.In motor operation course, this shaft coupling 300 can by torque from Motor shaft 200 is transmitted on pump shaft 100.

But this kind of shaft coupling has the following problems: first, dismounting is inconvenient, and when maintenance needs that axis is made to axially move, and makes Motor sling with lifting utensil, the excessive motor of weight operating difficulties at the scene.Second, box coupling belongs to rigidity and connects It connects, does not have axial direction, radially and angularly compensation performance.Water pump series is excessive, and radial force increases.Concentricity can be problematic, can lead Cause rotor portion abrasion.Third, poor universality are only applicable to the few model of water pump series because that cannot balance rotor radial power.Together When the motor diameter of axle change, need replacing a whole set of shaft coupling.

Utility model content

The purpose of this utility model is in view of the drawbacks of the prior art, to provide a kind of shaft coupling for water pump, installation with Convenient disassembly, maintenance cost is low, good to motor adaptability, and the deep groove ball bearing configured can be with heeling pump rotor bring Radial force reduces the abrasion of rotor vulnerable part.

In view of this, the utility model embodiment provides a kind of shaft coupling for water pump, shaft coupling includes in bearing Seat, deep groove ball bearing, the first shaft coupling and the second shaft coupling；

The bearing inner seat includes connecting column and inner seat ontology, and one end of the connecting column is connected with the inner seat ontology； It is installed on singly-bound on the side wall of the connecting column, so that motor shaft is fixed in the connecting column；The periphery of the connecting column Equipped with card collar groove；The bottom of the inner seat ontology is equipped with multiple first threaded holes；

The deep groove ball bearing is socketed on the connecting column, and is pressed into the inner seat ontology by atmospheric pressure machine On；

First shaft coupling includes pedestal and interconnecting piece, and the pedestal is connected with one end of the interconnecting piece, described Pedestal is equipped with second threaded hole equal with the first screw thread hole number, is worn by screw and penetrates first threaded hole and institute The second threaded hole is stated, first shaft coupling is made to be fixed on the bottom of the inner seat ontology；

Second shaft coupling includes two identical sub- shaft couplings, and described two sub- shaft couplings are oppositely arranged, and forms the One cavity and the second cavity, first cavity and the second cavity are conducted, and described two sub- shaft couplings clamp the interconnecting piece The other end and pump shaft one end, to the other end of the interconnecting piece is fixed in first cavity, by the water One end of pump shaft is fixed in second cavity.

Preferably, when motor starts running, the motor shaft transmits torque to the bearing inner seat by the singly-bound, The bearing inner seat transfers torque to first shaft coupling, and first shaft coupling drives the second shaft coupling rotation, Second shaft coupling drives the pump shaft to rotate by frictional force.

Preferably, the shaft coupling further includes circlip, is socketed on the connecting column, and is connected in the card collar groove, To which the deep groove ball bearing is fixed on the inner seat ontology.

Preferably, it is respectively equipped with the third threaded hole of identical quantity on described two sub- shaft couplings, is worn by bolt and penetrates two Third threaded hole on a sub- shaft coupling, so that described two sub- shaft couplings are fixed.

Preferably, first cavity and second cavity are cylindrical cavity.

Preferably, the position after the deep groove ball bearing press fitting is lower than the card collar groove of the bearing inner seat.

Preferably, the side wall of the connecting column is equipped with keyway, and the singly-bound is set in the keyway.

A kind of shaft coupling for water pump provided by the embodiment of the utility model, installation and removal are convenient, and dismounting is without moving Dynamic other component, does not influence to install again after disassembly；If shaft coupling damage only needs to change shaft coupling, without replacing pump shaft, Maintenance cost is low, and good to motor adaptability, as long as the different motor producers diameter of axle is identical i.e. without redesigning shaft coupling, only Use can be met by needing replacing bearing block.The deep groove ball bearing of configuration can be reduced with heeling pump rotor bring radial force The abrasion of rotor vulnerable part, and can self-adjusting water pump concentricity.

Detailed description of the invention

Fig. 1 is integral type shaft coupling used in existing centrifugal multistage pump multiple centrifugal pump；

Fig. 2 is the perspective view of the explosion of the shaft coupling provided by the embodiment of the utility model for water pump；

Fig. 3 is the partial cutaway schematic of shaft coupling provided by the embodiment of the utility model；

Fig. 4 is the assembling schematic diagram of bearing inner seat provided by the embodiment of the utility model and deep groove ball bearing；

Fig. 5 is circlip assembling schematic diagram provided by the embodiment of the utility model；

Fig. 6 is the first shaft coupling assembling schematic diagram provided by the embodiment of the utility model；

Fig. 7 is the assembling schematic diagram of the second shaft coupling and pump shaft provided by the embodiment of the utility model；

Fig. 8 is the structural schematic diagram of the shaft coupling provided by the embodiment of the utility model for water pump.

Specific embodiment

Below by drawings and examples, the technical solution of the utility model is described in further detail.

Fig. 2 is the perspective view of the explosion of the shaft coupling provided by the embodiment of the utility model for water pump, as shown in Fig. 2, connection Axis device includes bearing inner seat 1, deep groove ball bearing 2, the first shaft coupling 3 and the second shaft coupling 4.

In conjunction with shown in Fig. 2, Fig. 3 and Fig. 4, bearing inner seat 1 includes connecting column 11 and inner seat ontology 12, one end of connecting column 11 It is connected with inner seat ontology 12, the centre of connecting column 11 and inner seat ontology 12 is designed with through-hole, thus by connecting column 11 and inner seat sheet Body 12 is conducted, and singly-bound 5 is installed on the side wall of connecting column, and the through-hole of 10 alignment bearings inner seat 1 of motor shaft can be manually rotated simultaneously Motor shaft falls into motor key in the keyway of bearing inner seat 1, specifically, the side wall of connecting column 11 is equipped with keyway, singly-bound 5 one Part is set in keyway, and a part is connected on motor shaft 10, so that motor shaft 10 is fixed in connecting column 11.

In addition, being additionally provided with card collar groove 110 in the periphery of connecting column 11, it to be used for fixed circlip 6.

Deep groove ball bearing 2 is socketed on connecting column 11, and is pressed on inner seat ontology 12 by atmospheric pressure machine, specifically , using atmospheric pressure machine, bearing inner seat 1 is placed on aerostatic press press fitting bottom plate, deep groove ball bearing 2 is preloaded onto axis manually It holds on 1 end face of inner seat, special-purpose nylon tooling is placed on bearing, both hands started by press button carries out press fitting process, cylinder pressure head Started by press button is unclamped in stop motion, completes press fitting process, and it is low to check that deep groove ball bearing 2 is pressed into 1 position of bearing inner seat In the card collar groove 110 of bearing inner seat 1.

In conjunction with shown in Fig. 2 to Fig. 5, shaft coupling further includes circlip 6, is socketed on connecting column 11, and be connected in card collar groove 110 It is interior, so that deep groove ball bearing 2 is fixed on inner seat ontology 12.

First shaft coupling 3 may be considered the middle section of shaft coupling, as shown in fig. 6, the first shaft coupling 3 specifically includes pedestal 31 With interconnecting piece 32, pedestal 31 is connected with one end of interconnecting piece 32, in order to realize the connection of the first shaft coupling 3 and bearing inner seat 1, As shown in Figure 2 and Figure 5, multiple first threaded holes 120 are equipped in the bottom of inner seat ontology 12, in the pedestal 31 of the first shaft coupling 3 It is equipped with second threaded hole 310 equal with 120 quantity of the first threaded hole, is worn by screw 8 and penetrates the first threaded hole 120 and second Threaded hole 310 makes the first shaft coupling 3 be fixed on the bottom of inner seat ontology 12, specifically, the bearing inner seat 1 being pressed is placed On station, the first shaft coupling 3 is docked on bearing inner seat 1,3 rim of the mouth of the first shaft coupling needs and bearing block is to just, makes With wrest fixing spanner by screw-driving, so that the first shaft coupling 3 and bearing inner seat 1 be connected.

Second shaft coupling 4 can be understood as the leading portion of shaft coupling, including two identical sub- shaft couplings 41, be equivalent to two halves Shaft coupling, as shown in Figure 2 and Figure 7, two sub- shaft couplings 41 are oppositely arranged, and it is empty to be formed in the interior thereof the first cavity 410 and second Chamber 411, the first cavity 410 and the second cavity 411 are cylindrical cavity, and the first cavity 410 and the second cavity 411 are conducted, Two sub- shaft couplings 41 are clamped and connected the other end in portion 32 and one end of pump shaft 7, so that the other end of interconnecting piece 32 be fixed In the first cavity 410, one end of pump shaft 7 is fixed in the second cavity 411.

As shown in fig. 7, being respectively equipped with the third threaded hole 412 of identical quantity on two sub- shaft couplings 41, pass through bolt The third threaded hole 412 penetrated on two sub- shaft couplings 41 is worn, specifically, wrest fixing spanner can be reused with pre-screwing fastening bolt Fastening bolt 9 is tightened according to sequence is tightened, so that two sub- shaft couplings 41 are fixed, and then completes the dress of entire shaft coupling With process, after shaft coupling implement body after assembly is as shown in figure 8, be completed, whether manual coil motor axis checks shaft coupling rotation Smooth, whether there is or not dead points.

When motor starts running, motor shaft 10 transmits torque to bearing inner seat 1 by singly-bound 5, and bearing inner seat 1 is by torque It is transmitted to the first shaft coupling 3, the first shaft coupling 3 drives the rotation of the second shaft coupling 4, and 4 section of the second shaft coupling drives water by frictional force Pump shaft 7 rotates.

Compared with existing sleeve-like rigid shaft coupling, have the advantage that

(1) installation and removal are convenient, and dismounting is without mobile other component.It does not influence to install again after disassembly.

(2) if shaft coupling damage only needs to change shaft coupling, without replacing pump shaft, maintenance cost is low.

(3) good to motor adaptability.As long as the different motor producers diameter of axle is identical i.e. without redesigning shaft coupling.Only need Replacement bearing block can meet use.

(4) deep groove ball bearing configured can reduce the abrasion of rotor vulnerable part with heeling pump rotor bring radial force, and It can self-adjusting water pump concentricity.

A kind of shaft coupling for water pump provided by the embodiment of the utility model, installation and removal are convenient, and dismounting is without moving Dynamic other component, does not influence to install again after disassembly；If shaft coupling damage only needs to change shaft coupling, without replacing pump shaft, Maintenance cost is low, and good to motor adaptability, as long as the different motor producers diameter of axle is identical i.e. without redesigning shaft coupling, only Use can be met by needing replacing bearing block.The deep groove ball bearing of configuration can be reduced with heeling pump rotor bring radial force The abrasion of rotor vulnerable part, and can self-adjusting water pump concentricity.

In the present invention, term " multiple " refers to two or more, unless otherwise restricted clearly.Term " peace Dress ", " connected ", " connection ", the terms such as " fixation " shall be understood in a broad sense, can also be with for example, " connection " may be a fixed connection It is to be detachably connected, or be integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.It is right For those skilled in the art, can understand as the case may be above-mentioned term in the present invention specifically contain Justice.

In the description of the utility model, it is to be understood that term " on ", "lower", "left", "right", "front", "rear" etc. refer to The orientation or positional relationship shown be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the utility model and Simplify description, rather than the device or unit of indication or suggestion meaning there must be specific direction, with specific orientation construction And operation, it is thus impossible to be construed as a limitation of the present invention.

In description in the present specification, term " specific embodiment ", " some embodiments ", " one embodiment " Deng description mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained in the utility model At least one embodiment or example in.In the present specification, the schematic illustration of above-mentioned term is not necessarily referring to identical Embodiment or example.Moreover, the particular features, structures, materials, or characteristics of description can be implemented in any one or more It can be combined in any suitable manner in example or example.

Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced It changes, improve, should be included within the scope of protection of this utility model.

Claims (7)

1. a kind of shaft coupling for water pump, which is characterized in that the shaft coupling includes bearing inner seat, deep groove ball bearing, first Shaft coupling and the second shaft coupling；

The bearing inner seat includes connecting column and inner seat ontology, and one end of the connecting column is connected with the inner seat ontology；It is described It is installed on singly-bound on the side wall of connecting column, so that motor shaft is fixed in the connecting column；The periphery of the connecting column is equipped with Card collar groove；The bottom of the inner seat ontology is equipped with multiple first threaded holes；

The deep groove ball bearing is socketed on the connecting column, and is pressed on the inner seat ontology by atmospheric pressure machine；

First shaft coupling includes pedestal and interconnecting piece, and the pedestal is connected with one end of the interconnecting piece, the pedestal It is equipped with second threaded hole equal with the first screw thread hole number, is worn by screw and penetrates first threaded hole and described the Two threaded holes make first shaft coupling be fixed on the bottom of the inner seat ontology；

Second shaft coupling includes two identical sub- shaft couplings, and described two sub- shaft couplings are oppositely arranged, and it is empty to form first Chamber and the second cavity, first cavity and the second cavity are conducted, and described two sub- shaft couplings clamp the another of the interconnecting piece One end of one end and pump shaft, to the other end of the interconnecting piece is fixed in first cavity, by the pump shaft One end be fixed in second cavity.

2. the shaft coupling according to claim 1 for water pump, which is characterized in that when motor starts running, the electricity Arbor transmits torque to the bearing inner seat by the singly-bound, and the bearing inner seat transfers torque to first shaft coupling Section, first shaft coupling drive the second shaft coupling rotation, and second shaft coupling drives the water pump by frictional force Axis rotation.

3. the shaft coupling according to claim 1 for water pump, which is characterized in that the shaft coupling further includes circlip, set It is connected on the connecting column, and is connected in the card collar groove, so that the deep groove ball bearing is fixed on the inner seat ontology On.

4. the shaft coupling according to claim 1 for water pump, which is characterized in that set respectively on described two sub- shaft couplings There is the third threaded hole of identical quantity, the third threaded hole penetrated on two sub- shaft couplings is worn by bolt, thus by described two Sub- shaft coupling is fixed.

5. the shaft coupling according to claim 1 for water pump, which is characterized in that first cavity and second sky Chamber is cylindrical cavity.

6. the shaft coupling according to claim 1 for water pump, which is characterized in that the position after the deep groove ball bearing press fitting It sets low in the card collar groove of the bearing inner seat.

7. the shaft coupling according to claim 1 for water pump, which is characterized in that the side wall of the connecting column is equipped with key Slot, the singly-bound are set in the keyway.