CN206759239U

CN206759239U - One shaft type motor pump group

Info

Publication number: CN206759239U
Application number: CN201720187106.6U
Authority: CN
Inventors: 徐振平; 冯昆
Original assignee: SHANGHAI SEVEN OCEAN HYDRAULIC MACHINERY Co Ltd
Current assignee: SHANGHAI SEVEN OCEAN HYDRAULIC MACHINERY Co Ltd
Priority date: 2017-02-28
Filing date: 2017-02-28
Publication date: 2017-12-15
Anticipated expiration: 2027-02-28

Abstract

The utility model discloses a shaft type motor pump group, and it includes motor body, pump main body and shaft, and the motor body is connected with the pump main body by the shaft single shaft；The shaft offers Woodruff key slots and keyways, the pump main body is made up of protecgulum, bonnet, cycloid gear and wildhaber-novikov gear, the cycloid gear inner ring offers keyway, woodruff key is stuck in the Woodruff key slots and keyways of the shaft and the cycloid gear, and the shaft is connected by the woodruff key with the cycloid gear；After the motor body starts, the shaft rotation, the cycloid gear is driven to rotate together by the woodruff key, therefore the pump main body operates.The utility model ensure that the concentricity of product, therefore the life-span of motor, pump improves therewith, lower noise；Compact-sized, volume reduces；Motor synchronization transfer tube, efficiency improve.The utility model meets national energy-saving emission reduction, the requirement of environmental protection.

Description

One shaft type motor pump group

Technical field

The utility model is related to machine field and hydraulic pump field, particularly a kind of motor pump group, applied to cooling system, In the engineering systems such as lubricating system, hydraulic system.

Background technology

At present, in Hydraulic Industry, motor is connected transmission, motor and oil pump difference with oil pump by bell-jar and shaft coupling Include separate transmission axle.The transmission of above-mentioned bell-jar and shaft coupling connection motor shaft and oil pump shaft, because double-shaft concentric degree is low, peace Reload request is high, easily produces noise, and easily therefore damage motor and oil pump bearing and connecting key.

Utility model content

The utility model is to provide an a kind of shaft type motor pump group first, ensures the concentricity of motor and pump, reduces transmission Noise, motor, oil pump parts wear are reduced, extend the life-span.

Secondly the utility model is to provide an a kind of shaft type motor pump group, optimizing structure design, the body of reduction motor pump group Product and weight, installing space is saved, reduce consumption.

The advantages of to reach above-mentioned motor pump group, the utility model provide an a kind of shaft type motor pump group, a shaft type Motor pump group includes motor body 10, pump main body 11 and shaft 4, and the motor body 10 and the pump main body 11 are by described one The single shaft of body axle 4 connects；

The shaft 4 offers Woodruff key slots and keyways, and the pump main body 11 is by protecgulum 3, bonnet 7, cycloid gear and circle-arc tooth Wheel composition, the inner ring of cycloid gear 1 offer keyway, and woodruff key 5 is stuck in the shaft 4 and the cycloid gear 1 Woodruff key slots and keyways in, the shaft 4 is connected by the woodruff key 5 with the cycloid gear 1.When the motor body 10 opens After dynamic, the shaft 4 rotates, and drives the cycloid gear 1 to rotate together by the woodruff key, the pump main body 11 is therefore Operating.

Preferably, the pump main body 11 is fastened directly on the housing boss of motor body 10 by screw.

Preferably, boss structure is set in the protecgulum 3, is provided with oil sealing inside boss structure, the oil sealing 6 is located at boss knot Inside structure and shaft 4 is wrapped up, is sealed.

Preferably, described one end of shaft 4 is supported by the bearing in the motor body 10, and the other end is by pump main body 11 Self-lubricating bearing 8 support, the self-lubricating bearing is located in the bonnet.

Preferably, the inside of bonnet 3 is provided with overflow valve 9, to set the operating pressure of pump main body 11.

Preferably, inlet and outlet is provided with the protecgulum 3, inlet and outlet is located at boss structure and cycloid gear 1, circle The centre position of gear with curved teeth 2.

In summary, compared with common electric machine pump group is closed, electric machine main shaft and pump main shaft are integrated into one by the utility model Axle, motor body and pump main body are concatenated by main shaft, improve the concentric of motor and pump, substantially reducing motor will with pump assembling Ask.

Compared with prior art, the utility model has the advantage that：

1st, due to being a main shaft used in motor and oil pump transmission, it is to ensure that in the case of general machining accuracy Good concentricity, motor, the parts wear of oil pump are reduced, extend the life-span, reduce noise.

2nd, because motor is connected with oil pump by a main shaft, motor pump group is compact-sized, small in volume.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Shown in figure：1 cycloid gear, 2 wildhaber-novikov gears, 3 protecgulums, 4 shafts, 5 woodruff keies, 6 oil sealings, 7 bonnets, 8 moisten certainly Plain besring, 9 overflow valves, 10 motor bodies, 11 pump main bodys.

Embodiment

Describe the utility model in detail with specific embodiment below in conjunction with the accompanying drawings, but following embodiments are not intended to limit this Utility model.

As shown in figure 1, an a kind of shaft type motor pump group, comprising motor body 10, pump main body 11 and shaft 4, it is special Sign is that motor body 10 and pump main body 11 are connected by shaft 4.

The front end of shaft 4 is provided with Woodruff key slots and keyways, and the inner ring of cycloid gear 1 that pump main body 11 includes also is provided with keyway, shaft 4 Cycloid gear 1 is driven by woodruff key 5, cycloid gear 1 engages with wildhaber-novikov gear 2.Thus, motor body 10 passes through shaft 4 Cycloid gear 1 and wildhaber-novikov gear 2 are driven, cycloid gear 1 and wildhaber-novikov gear 2 relatively rotate, and produce the appearance of continuous circulation change Chamber, realize the cyclic process of oil suction and oil extraction.Liquid enters pump main body from import, and pump main body is discharged from outlet.The oil sealing 6 Positioned at the outer ring of internal, the described shaft 4 of the boss of the protecgulum 3, to prevent liquid from being oozed out inside pump main body 11.It is described Self-lubricating bearing 8 is located in the bearing groove of bonnet 7, plays a part of to support shaft 4.The overflow valve 9 is located at the bonnet 7 It is interior, there is corresponding duct that overflow valve 9 is connected with the oil-discharging cavity of pump main body 11, overflow valve 9 is used for the maximum output pressure of controlling pump main body 11 Power.

In summary, the utility model ensure that the concentricity of product, make to can be achieved with motor under general machining accuracy The higher concentric of pump group, reduces the abrasion of motor pump group bearing, key, reduces noise, while makes motor pump group small volume, again Amount is light.Meanwhile the Electric-motor driven pumps of the utility model structure synchronizedly run, efficiency is improved, reduces energy consumption.The utility model accords with Close the policy requirements such as national energy-saving emission reduction, environmental protection.The utility model is primarily adapted for cooling system, lubricating system and some liquid Pressure system etc. requires low noise occasion.

Although the foregoing describing specific embodiment of the present utility model, it will be appreciated by those of skill in the art that These embodiments can only be made for example, on the premise of without departing substantially from principle of the present utility model and essence above A variety of changes and modification.Therefore, the scope of protection of the utility model is defined by the appended claims.

Claims

A 1. shaft type motor pump group, it is characterised in that：It includes motor body, pump main body and shaft, the motor body and The pump main body is connected by the shaft single shaft；

The shaft offers Woodruff key slots and keyways, and the pump main body is made up of protecgulum, bonnet, cycloid gear and wildhaber-novikov gear, institute To state cycloid gear inner ring and offer keyway, woodruff key is stuck in the Woodruff key slots and keyways of the shaft and the cycloid gear, The shaft is connected by the woodruff key with the cycloid gear；After the motor body starts, the shaft rotation Turn, drive the cycloid gear to rotate together by the woodruff key, therefore the pump main body operates.
2. shaft type motor pump group as claimed in claim 1, it is characterised in that the pump main body is fastened directly to institute by screw State on motor body housing boss.
3. shaft type motor pump group as claimed in claim 1, it is characterised in that boss structure, boss knot are set in the protecgulum Oil sealing is provided with inside structure, the oil sealing is located inside boss structure and wraps up shaft, seals.
4. shaft type motor pump group as claimed in claim 1, it is characterised in that described shaft one end is by the motor body Interior bearing supporting, the other end are supported by the self-lubricating bearing in the pump main body, and the self-lubricating bearing is located at the bonnet It is interior.
5. shaft type motor pump group as claimed in claim 4, it is characterised in that overflow valve is provided with inside the bonnet, to Set the operating pressure of pump main body.
6. shaft type motor pump group as claimed in claim 3, it is characterised in that be provided with inlet and outlet in the protecgulum, enter Mouth and outlet are located at boss structure and cycloid gear, the centre position of wildhaber-novikov gear.