A kind of water-cooled machine sealing structure
Technical field
The utility model is related to a kind of motor seal technology more particularly to a kind of water-cooled machine sealing structures.
Background technology
Currently, the type of cooling that conventional motors use is air-cooled, spaced heat dissipation is equipped on the shell of motor
Fin, and it is equipped with the fan being coaxially disposed with shaft inside the shell to radiate to motor.But by the way of air-cooled pair
Not only noise is big in use for the method that motor radiates, and internal fan ties up the dismounting of motor in motor damage
Repair it is extremely inconvenient, and be easy influenced by environment.
Therefore, later people mostly use water-cooled machine and substitute current ventilated machine, water-cooled machine not only heat dissipation effect ratio
Ventilated machine more preferably, and not will receive the interference of the dust in environment.
But existing water-cooled machine has the following defects:
(1) water-cooled machine sealing performance is poor, is easy to be interfered by environment in use, waterproof effect is bad to be caused
Inside, which is easy water inlet, influences the operating of its internal stator and rotor.
(2) current water-cooled machine is only capable of being dehydrated use as traditional ventilated machine, can not be positioned in water, can not
Meet special service condition.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of water-cooled machine sealing structure,
By improving the sealing structure between upper end cover, bottom end cover and shell to improve the sealing performance of water-cooled machine.
The purpose of this utility model adopts the following technical scheme that realization:
A kind of water-cooled machine sealing structure, including shell, stator and rotor;It is formed in the shell for accommodating
State the motor cavity of stator and the rotor;The stator is fixed in the motor cavity and is matched with the rotor;Described turn
Son is coaxially connected with shaft, and one end of the shaft extends outwardly along the rotation axis direction of the rotor and is pierced by the shell
The both ends of body, the shell are covered with respectively for being formed together the upper end cover and the lower end that enclose the motor cavity with the shell
Lid;Cooling water cavity is equipped in the shell, the upper end cover and the bottom end cover are respectively equipped with and are mutually interconnected with the cooling water cavity
Logical cooling water channel;The upper end cover and bottom end cover further respectively have the water inlet being connected to the cooling water channel and water outlet
Mouthful;One end that the cooling water cavity is connected with two cooling water channels is fixed with sealing element;The cooling water cavity is described cold with two
But the end of water channel to connect is equipped with the locating part for limiting the sealing element deformation and displacement.
Further, the upper end cover and the bottom end cover are respectively provided with the tenon position with shell positioning clamping
Platform;It is fixed with sealing ring between two tenon position platforms and the shell.
Further, two cooling water channels extend outwardly the runner for being useful for connecting with the cooling water cavity respectively;Institute
The both ends for stating cooling water cavity towards the shell each extend over the sluice for being useful for connecting with two runners.
Further, one end that two runners are connected with the sluice offers first step respectively;It is described to cross water
One end that road is connected with two runners offers second step respectively;The first step and the second step diameter are big
In the runner and the sluice, and diameter is equal, and fixed positioning chuck is embedded in for the locating part to be formed;Described
The end face that two steps connect with the first step is offered is embedded in fixed third step for the sealing element.
Further, the first step is the cyclic structure opened up around the runner circumferential direction;The second step
For the cyclic structure opened up around the sluice circumferential direction;The third step is to be opened up around the second step circumferential direction
Cyclic structure, the third stepped diameters be more than the first step and the second step.
Further, the sealing element is sealing ring;The locating part is that circle covers;The sealing ring is embedded in the third platform
Rank is fixed on the first step and the second step by the circle set insertion, so that the third step, the circle set
And the lower face of the upper end cover and/or the upper surface of the bottom end cover are formed for limiting the sealing ring deformational displacement
Confined space.
Further, machine sealing chamber, two chamber up and down of the machine sealing chamber are equipped with around the shaft periphery in the bottom end cover
Wall offers the axis hole stretched out for the shaft respectively;Be perfused with lubricating oil in the machine sealing chamber, the machine sealing chamber with described turn
The double mechanical seal part being coaxially disposed with the shaft, the both ends stationary ring of the double mechanical seal part are equipped between axis
It is connect respectively with upper and lower two gland seals;The revolving part of the double mechanical seal part is sheathed on the shaft.
Further, the bottom of the machine sealing chamber offers downward opening accent, and the dismountable joggle of accent has
Machine sealed cover;The machine sealed cover is equipped with the axis hole;The lower end of the machine sealed cover and the double mechanical seal part
Stationary ring is affixed.
Further, the sealing ring is equipped between the machine sealed cover and the bottom end cover.
Compared with prior art, the beneficial effects of the utility model are:
It is improved by the sealing structure to water-cooled machine, to improve between water-cooled motor shell and upper and lower end cap
Sealing performance, by the way that sealing element is arranged between cooling water channel and cooling water cavity, to prevent the company of cooling water channel and cooling water cavity
End is connect to leak, since sealing element can will produce displacement in use, or due to cooling water cavity and cooling water channel it
Between pressure make its deformation, be arranged one between cooling water channel and cooling water cavity this time for limiting sealing element deformation and displacement
Locating part, the sealing performance between cooling water channel and cooling water cavity is further increased, in order to avoid sealing element shape in use
Variable displacement causes to leak.
Description of the drawings
Fig. 1 is the utility model water-cooled machine sealing structure overview;
Fig. 2 is the portions the A enlarged view of Fig. 1.
In figure:10, shell;20, stator;30, rotor;40, shaft;11, motor cavity;12, cooling water cavity;121, water is crossed
Road;1211, second step;1212, third step;1213, sealing element;1214, locating part;50, upper end cover;60, bottom end cover;
70, cooling water channel;71, runner;51, water outlet;61, water inlet;62, axis hole;63, machine sealing chamber;631, double mechanical seal
Part;64, machine sealed cover;711, first step;80, tenon position platform.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the utility model is described further, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
As shown in Fig. 1~2, in order to improve the sealing performance of water-cooled machine, it is close that the utility model provides a kind of water-cooled machine
Seal structure, the structure include shell 10, stator 20 and rotor 30;It is formed in shell 10 for accommodating stator 20 and rotor 30
Motor cavity 11;Stator 20 is fixed in motor cavity 11 and is matched with rotor 30;Rotor 30 is coaxially connected with shaft 40, shaft
40 one end extends outwardly along the rotation axis direction of rotor 30 and is pierced by shell 10, under the action of stator 20 and rotor 30,
Rotor 30 drives shaft 40 to convert electrical energy into kinetic energy relative to the rotation of shell 10.The both ends of shell 10 be covered with respectively for
Shell 10 is formed together the upper end cover 50 and bottom end cover 60 for enclosing motor cavity 11;Cooling water cavity 12, upper end cover are equipped in shell 10
50 and bottom end cover 60 be respectively equipped with cooling water cavity 12 be interconnected cooling water channel 70;Upper end cover 50 and bottom end cover 60 are also distinguished
Equipped with the water inlet 61 and water outlet 51 being connected to cooling water channel 70;One end that cooling water cavity 12 is connected with two cooling water channels 70
It is fixed with sealing element 1213;Cooling water cavity 12 is equipped with the end of two cooling water channels 70 to connect for limiting 1213 shape of sealing element
The locating part 1214 of change and displacement.
Due to being sequentially connected and drawing again by interconnected cooling water channel 70 and cooling water cavity 12 inside water-cooled machine
Enter flow and cooling, therefore the leakproofness of the junction between shell 10 and upper end cover 50, bottom end cover 60 are carried out to shell 10
Can be particularly critical, by the company for improving the cooling water channel 70 in upper end cover 50 and bottom end cover 60 and the cooling water cavity 12 in shell 10
Connect sealing structure, to improve the sealing performance of water-cooled machine, avoid water-cooled machine in use by external environment influence with
It is penetrated into wherein by water or inside is seeped water outward or into motor cavity 11, by the connecting pin of cooling water cavity 12 and cooling water channel 70
Sealing element 1213 is set, obstructs the gap of the connecting pin of cooling water channel 70 and cooling water cavity 12, then by locating part 1214 to close
Sealing 1213 limited and provided 1213 deformation direction of sealing element it is opposite support power, prevent sealing element 1213 from using
Deformation and displacement in journey, greatly improve the sealing performance between cooling water cavity 12 and cooling water channel 70.
In order to further increase upper end cover 50 and bottom end cover 60 sealing performance between shell 10 respectively, 50 He of upper end cover
Bottom end cover 60 is respectively provided with the tenon position platform 80 with the positioning clamping of shell 10, and tenon position platform 80 can make upper end cover 50 and bottom end cover 60
Accurately positioning clamping relationship is formed between shell 10 respectively, is passing through fixed sealing between two tenon position platforms 80 and shell 10
Ring is to block the inside and outside of water-cooled machine.
Even closer in order to make to connect between cooling water cavity 12 and cooling water channel 70, two cooling water channels 70 extend outwardly respectively
It is useful for the runner being connect with cooling water cavity 12 71;The both ends of cooling water cavity 12 towards shell 10, which each extend over, to be useful for and two runners
The sluice 121 of 71 connections.
Specifically, one end that two runners 71 are connected with sluice 121 offers first step 711 respectively;Sluice 121 with
The connected one end of two runners 71 offers second step 1211 respectively;First step 711 is all higher than with 1211 diameter of second step
Runner 71 and sluice 121, and diameter is equal, and fixed positioning chuck is embedded in for locating part 1214 to be formed;Second step
1211 end faces to connect with first step 711 are offered is embedded in fixed third step 1212 for sealing element 1213.
First step 711 is the cyclic structure opened up around 71 circumferential direction of runner;Second step 1211 is around sluice 121
The cyclic structure that circumferential direction opens up;Third step 1212 is the cyclic structure opened up around 1211 circumferential direction of second step, the
Three steps, 1212 diameter is more than first step 711 and second step 1211.
More specifically, sealing element 1213 is sealing ring;Locating part 1214 is that circle covers;Sealing ring is embedded in third step 1212,
It is fixed on first step 711 and second step 1211 by circle set insertion, so that third step 1212, circle set and upper end cover 50
Lower face and/or the upper surface of bottom end cover 60 form confined space for limiting sealing ring deformational displacement.
It, can be by the lower face of upper end cover 50 or the upper end of bottom end cover 60 after being mounted on third step 1212 due to sealing ring
The compressing in face and third step 1212, to towards the 70 inside deformation expansion of cooling water channel for not having stationary plane, influence its sealing
Effect, therefore, embedded circle set, opposite to be formed to sealing ring deformation direction on second step 1211 and first step 711
Power is supported, sealing ring deformation or displacement are prevented, ensures the sealing effect between cooling water cavity 12 and cooling water channel 70.
In order to further increase sealing performance between the shaft 40 of water-cooled machine and shell 10, bottom end cover 60, bottom end cover 60
40 periphery of interior twisted rotary shaft is equipped with machine sealing chamber 63, and two cavity walls up and down of machine sealing chamber 63 offer the axis hole stretched out for shaft 40 respectively
62;Be perfused with lubricating oil in machine sealing chamber 63, it is preferred that lubricating oil is transformer oil, between machine sealing chamber 63 and shaft 40 be equipped with
The double mechanical seal part 631 that shaft 40 is coaxially disposed, the both ends stationary ring of double mechanical seal part 631 is respectively with upper and lower two
Axis hole 62 is tightly connected;The revolving part of double mechanical seal part 631 is sheathed on shaft 40, transformer oil have pure stabilization,
The features such as viscosity is small, good insulating, good cooling, therefore while heat radiation lubricating can be carried out to double mechanical seal part 631,
Also it can further be sealed between axis hole 62 and motor cavity 11, preferable insulating properties makes transformer oil penetrate into motor cavity
It will not lead to electric motor short circuit in 11.
As preferred embodiment, in order in the case where meeting water-cooled machine sealing performance, facilitate double mechanical
The dismounting of sealing element 631 and the maintenance of machine sealing chamber 63, the bottom of machine sealing chamber 63 offer downward opening accent, and accent is removable
The organic sealed cover of the joggle that unloads 64;Machine sealed cover 64 is equipped with axis hole 62;Machine sealed cover 64 and double mechanical seal part 631
Lower end stationary ring is affixed.Staff only needs can be to double mechanical seal part 631 and machine sealing chamber by demountor sealed cover 64
63 are replaced or are repaired.
Sealing ring is equipped between machine sealed cover 64 and bottom end cover 60.
The above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to
In the utility model range claimed.