CN2421436Y

CN2421436Y - Water pump shaft convenient to joint motor

Info

Publication number: CN2421436Y
Application number: CN 00206718
Authority: CN
Inventors: 伍燕生
Original assignee: SANXIN SCIENCE AND TECHNOLOGY DEVELOPMENT Co SHIJIAZHUANG DEVELOPMENT ZONE
Current assignee: SANXIN SCIENCE AND TECHNOLOGY DEVELOPMENT Co SHIJIAZHUANG DEVELOPMENT ZONE
Priority date: 2000-03-30
Filing date: 2000-03-30
Publication date: 2001-02-28
Anticipated expiration: 2010-03-30

Abstract

The utility model relates to a water pump shaft which is convenient to be connected with a motor. One end of the water pump shaft is connected with an impeller, and the other end is connected with a motor shaft and is a sleeve barrel of which the inner aperture is matched with the motor shaft. The circumference of the sleeve barrel is provided with a locking sleeve and a locking flange. After the locking flange is fastened, the locking sleeve and the sleeve barrel can produce a deformation in order to make the water pump shaft rigidly connected with the motor shaft. The connecting method can save connecting fittings, such as shaft couplings, etc. in order to realize coaxial direct connection. In addition, the utility model has good dynamic force transmission performance and convenient installation.

Description

A kind of water pump spindle of connecting with motor be convenient to

The utility model relates to the pump shaft of a kind of water pump, particularly water pump.

The pump shaft of water pump is used following several mode often connecting with motor: coaxial direct connection, coupling, belt pulley.Coaxial direct connection is with the motor shaft lengthening, makes pump shaft and motor coaxle, and its advantage is simple and compact for structure, and pump is in light weight; Shortcoming is must customization extension shaft motor.Coupling is to adopt the bearing bracket support rotor, and pump shaft links to each other by coupling with motor, and its advantage is that the motor versatility is good, does not need special motor; Shortcoming is a complex structure, and inconvenience is installed, and belt pulley connects employing pump shaft connecting belt wheel, and belt pulley links to each other with motor by belt, and its advantage is easy for installation, is suitable for multiple landform and direction, and shortcoming is that efficient is low, loss power, and place that need be certain.

The purpose of this utility model provides a kind of pump shaft that can realize direct connection easily with motor shaft.

The purpose of this utility model is realized by following technology side: a kind of water pump spindle of connecting with motor be convenient to, its end and impeller link, the other end is connected with motor shaft, its specialization is, pump shaft with the joining end of motor be a sleeve, the internal orifice dimension and the motor shaft of sleeve are complementary, lock sleeve and locking flange are arranged on the cylindrical of sleeve, one breach is arranged on the circumference of lock sleeve, and its outer peripheral surface is that central authorities are high, low domatic in both sides, its internal diameter matches with the external diameter of sleeve, the locking flange is two, and their endoporus is and the domatic conical surface that matches of the cylindrical of lock sleeve, has a deformation groove along circumference at the middle part of sleeve endoporus.

Described pump shaft of above-mentioned water pump spindle and impeller are key connecting.

The screw of the described locking flange of above-mentioned water pump spindle is corresponding one by one, and is linked by clamping bolt.Adopt the water pump spindle of said structure that pump shaft is directly linked with common y series motor axle, promptly do not need special extension shaft motor, do not need the coupling used always and belt pulley etc. to connect accessory again, simplified pump structure greatly, make the weight of pump and the pump of traditional belt bracket heavily alleviate type 50%, the power conductive performance is good simultaneously, installs very convenient.

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is an overall structure schematic representation of the present utility model;

Fig. 2 is the plan view of lock sleeve;

Fig. 3 is the A-A sectional view of lock sleeve;

Fig. 4 is the plan view of locking flange;

Fig. 5 is a locking flange B-B sectional view.

As we can see from the figure, the left end of pump shaft 1 is equipped with impeller 2, and pump shaft is a key connecting with connecting of impeller, connects keyboard 11 and only demonstrates the lower end because of analysing and observe the position in the drawings.End face at primitive axis 1 also is equipped with end cap 12, and end cap 12 is fixing by bolt 13, and it can prevent impeller 2 outer moving, and is sleeve 4 at the right-hand member of former bearing 1, and its internal orifice dimension and motor shaft 3 are complementary, and are lock sleeve 6 on the excircle of sleeve 4.Lock sleeve 6 is an incomplete closed round ring, and a breach 8 is arranged on annulus, and the internal orifice dimension of lock sleeve matches with sleeve 4 external diameters, and the outer peripheral surface of lock sleeve is that central authorities are high, both sides low domatic 9.Two locking flanges 7 are arranged on the excircle of lock sleeve 6, the endoporus of locking flange respectively with two of lock sleeve locking flanges 7, the endoporus of locking flange is domatic corresponding with two of lock sleeve respectively, therefore the endoporus of flange is on the circumference that has with 10 two locking of the conical surface flange of the domatic equal angular of lock sleeve screw 14 one to one to be arranged, and can two flanges be connected by clamping bolt 15.In the middle part of the endoporus of sleeve 4, also have deformation groove 5 along circumference.

The utility model in use, install impeller earlier, end at sleeve 4 puts lock sleeve and locking flange then, again with sleeve on motor shaft, motor shaft inserts the position of sleeve and can adjust, correct with the gap that guarantees impeller one end, impeller is worked in the optimum position, after adjust the position of motor, the connection clamping bolt 15 of locking flange is tightened, and locking flange inner hole cone face moves along the excircle of lock sleeve is domatic, forces lock sleeve to produce deformation, because lock sleeve jagged 8, be incomplete close ring, thus annulus is diminished, compressing sleeve 4, and a deformation groove 5 is arranged in sleeve 4 endoporus, so sleeve generation elastic strain makes pump shaft 1 and motor shaft 3 become rigid joint.Adopt this structure can save connection accessories such as coupling, can realize coaxial direct connection again, power makes flexible energy good, easy for installation.

Claims

1. its end of water pump spindle [1] and an impeller [2] of being convenient to connect with motor links, the other end and motor shaft link, it is characterized in that: pump shaft [1] with the joining end of motor shaft [3] be a sleeve [4], the internal orifice dimension of sleeve [4] and motor shaft [3] are complementary, lock sleeve [6] and locking flange [7] are arranged on the cylindrical of sleeve, one breach [8] is arranged on the circumference of lock sleeve [6], its outer peripheral surface is that central authorities are high, domatic [9] that both sides are low, its internal diameter matches with the external diameter of sleeve [4], the locking flange is two, their endoporus is and the domatic conical surface that matches of the cylindrical of lock sleeve [10], has a deformation groove [5] along circumference at the middle part of sleeve endoporus.

2. water pump spindle according to claim 1 is characterized in that: described pump shaft [1] is a key connecting with impeller [2].

3. water pump spindle according to claim 2 is characterized in that, the screw [4] of described two locking flanges [7] is corresponding one by one, and is linked by clamping bolt [15].