CN205544746U - Motor draft hood mounting structure and motor - Google Patents
Motor draft hood mounting structure and motor Download PDFInfo
- Publication number
- CN205544746U CN205544746U CN201620094799.XU CN201620094799U CN205544746U CN 205544746 U CN205544746 U CN 205544746U CN 201620094799 U CN201620094799 U CN 201620094799U CN 205544746 U CN205544746 U CN 205544746U
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- China
- Prior art keywords
- bolt
- motor
- ventilator cowling
- casing
- mounting structure
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Abstract
The utility model discloses a motor draft hood mounting structure, include: the setting is in rubber strip in the joining region between draft hood and the motor shell, pass from the draft hood side the connecting hole of casing is in order to incite somebody to action the draft hood with the bolt that the casing is connected, follow casing side cover is in spring washer on the bolt, with through compressing tightly spring washer locking is in nut on the bolt. The embodiment of the utility model provides an in still disclose a motor. The utility model provides a technical scheme can reduce the vibration and vibrate the noise that arouses to improve bolt life.
Description
Technical field
The utility model relates to machine field, particularly a kind of motor ventilation hood mounting structure and motor.
Background technology
In the bearing block position of some motor, easily in level with axially produce vibration problem.With on the motor of ventilator cowling
When ventilator cowling is installed, it is common that ventilator cowling is used the casing being fixed on motor of the threaded fastener rigidity such as screw, bolt
On, therefore in faying face position, the vibration of ventilator cowling and casing have identical vibration values.For reducing vibration noise, and
Avoiding this being rigidly attached to after frequent vibration to produce loosening of connector, some can use elastic connection in connecting.
Fig. 1 is the schematic diagram of current a kind of motor ventilation hood mounting structure.As it is shown in figure 1, there is screw thread on ventilator cowling 11
Hole, casing 12 has through hole, and bolt 13 is tightened on ventilator cowling 11 from casing 12 side after the through hole of casing 12
In screwed hole, thus ventilator cowling 11 is linked together with casing 12.In order to realize elastic connection, ventilator cowling 11 He
Junction between casing 12 is provided with hard rubber block 14, and arranges between the flat shim 15 and casing 12 of bolt head
There are some butterfly springs 16, simultaneously in order to keep the pretightning force set, bolt 13 are cased with a spacing steel pipe 17,
In order to adapt to the length of spacing steel pipe 17, the quantity of butterfly spring 16 depends on the thickness of measured casing 2 junction.
But generally use forging type to obtain due to casing 12, therefore the thickness of casing 12 junction there may be difference,
It is thus desirable to it is measured every time, and determine the quantity of butterfly spring 16 according to measurement result, the numbest
Tired, on the other hand the most easily determine inaccurate.If butterfly spring 16 selects many, once block rubber 14 lost efficacy, and can lead
Cause bolt 13 pretightning force inadequate, be susceptible to bolt looseness and fracture；If butterfly spring 16 choosing is few, spacing steel pipe
Complete bearing bolt load, butterfly spring 16 are separated by 17 with casing junction, it is impossible to play cushioning effect.Additionally,
Hard rubber block is also only arranged at the position closing on connection, and when ageing of rubber, bolt will be led because pretightning force is not enough
Cause to loosen and drop or fatigue fracture.
Utility model content
In view of this, on the one hand the utility model proposes a kind of motor ventilation hood mounting structure, on the other hand proposes one
Motor, in order to reduce vibration and the noise that causes of vibration, and improves bolt service life.
A kind of motor ventilation hood mounting structure proposed in the utility model, including:
Rubber strip, it is arranged in the bonding pad between described ventilator cowling and motor case；
Bolt, it passes the connecting hole of described casing from ventilator cowling side, to be connected with described casing by described ventilator cowling；
Spring washer, it is enclosed within described bolt from described casing side；With
Nut, it is locked on described bolt by compressing described spring washer.
In one embodiment, described mounting structure farther includes: limited post, and it is positioned at described ventilator cowling with described
Between casing, it is used for being sleeved on described bolt, and the height of described limited post is less than the thickness of described rubber strip.
In one embodiment, described limited post is welded on described ventilator cowling.
In one embodiment, described nut is double nut.
In one embodiment, described stud weld is contained on described ventilator cowling, or is tightened on the screw thread of described ventilator cowling
In hole.
A kind of motor proposed in the utility model, including the ventilator cowling mounting structure of any of the above-described way of realization.
It can be seen that owing to the utility model setting in bonding pad between ventilator cowling and motor case from such scheme
Be equipped with the rubber strip for vibration damping, and bolt from ventilator cowling side, connecting hole through casing is attached, use spiral shell afterwards
Female and spring washer is locked, it is achieved the installation of ventilator cowling, easy for installation.
Additionally, by arranging large-sized rubber strip and non local block rubber, add system damping so that electric motor end cap
Axial vibration reduce.Additionally, the amplitude of ventilator cowling vibration reduces, the noise caused because of ventilator cowling vibration also reduces.
On the other hand, the vibration of ventilator cowling is contrary with the direction of vibration of casing, and the horizontal vibration of motor reduces；And in junction
When ageing of rubber occurs, spring washer will not be caused lax and bolt pretightening reduces.
Further, since be provided with the vibration insulating system of rubber strip and spring washer, bolt can bear less dynamic loading, bolt
Life-span increases.Further, owing to bolt is to be connected with ventilator cowling from the top down, so even bolt also will not because pretension is lax
Drop.
Accompanying drawing explanation
Preferred embodiment of the present utility model will be described in detail by referring to accompanying drawing below, make those of ordinary skill in the art
Become apparent from above and other feature and advantage of the present utility model, in accompanying drawing:
Fig. 1 is the schematic diagram of current a kind of motor ventilation hood mounting structure.
Fig. 2 is the schematic diagram of a kind of motor ventilation hood mounting structure in the utility model embodiment.
Wherein, reference is as follows:
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, by the following examples the utility model is entered
One step describes in detail.
Fig. 2 is the schematic diagram of a kind of motor ventilation hood mounting structure in the utility model embodiment.As in figure 2 it is shown, this reality
Execute the motor ventilation hood mounting structure in example and comprise the steps that rubber strip 21, bolt 22, spring washer 23, nut 24 and limit
Position post 25.
Wherein, rubber strip 21 is arranged in the bonding pad between ventilator cowling 11 and casing 12.The rigidity of rubber strip 21 can
Dynamics according to system selects, and can be needed to realize special rigidity by the length that cutting obtains specifying
Ask.
Bolt 22 passes the connecting hole of casing 12 from ventilator cowling 11 side, to be connected with casing 12 by ventilator cowling 11.Casing
The connecting hole of 12 can be through hole.Bolt 22 can be welded on ventilator cowling 11, or can also be on ventilator cowling 11
Being threaded hole, bolt 22 is tightened on ventilator cowling 11 by screwing in described screwed hole.Bolt 22 can also be screw etc..
Wherein, ventilator cowling 11 can be adpting flange with the junction of casing 12, and correspondingly, the through hole of casing 12 can be machine
The through hole of shell adpting flange, the screwed hole of ventilator cowling 11 can be the screwed hole of ventilator cowling adpting flange.
Spring washer 23 is enclosed within bolt 22 from casing 12 side.Corresponding each bolt 22, the quantity of spring washer 23 can
To determine according to the pretightning force set.In Fig. 2 in case of three spring washers 23 are set.Spring washer 23 can
Think butterfly spring, or can also be other flexible member.
Nut 24 is locked on bolt 22 by holddown spring packing ring 23.In the present embodiment, double nut can be set, it is achieved
Nut interlocks, and prevents bolt looseness.
Limited post 25, between ventilator cowling 11 and casing 12, is used for being sleeved on bolt 22, and the height of limited post 25
Degree is less than the thickness of rubber strip 21.The effect of limited post 25 be mainly used in preventing further rubber strip 21 when partial failure,
Spring washer 23 relaxes, and bolt pretightening reduces.
Certainly, Fig. 2 illustrate only the mounting structure at a link position, be similar to therewith at other link position, only
It is that rubber strip 21 can share one at multiple link positions.
In the present embodiment, the size setting pretightning force is mainly come by the rigidity of rubber strip 21 and the rigidity of tight spring washer 23
Determine, and the two is the most all fixing, unlike needing to measure the thickness of the junction of casing in Fig. 1 every time every time
Degree determines, the most easy for installation.
Additionally, by arranging large-sized rubber strip and non local block rubber, add system damping so that electric motor end cap
Axial vibration reduce, especially when end cap intrinsic frequency and many driving sources excited frequency close to time, effect becomes apparent from.
Additionally, the amplitude of ventilator cowling vibration reduces, the noise caused because of ventilator cowling vibration also reduces.It addition, ventilator cowling
Vibrating contrary with the direction of vibration of casing, the horizontal vibration of motor reduces；When there is ageing of rubber in junction, Bu Huiyin
Play spring washer to relax and bolt pretightening reduction, and the setting of limited post can also further ensure that this point.
Further, since be provided with the vibration insulating system of rubber strip and spring washer, bolt can bear less dynamic loading, bolt
Life-span increases.Further, owing to bolt is to be connected with ventilator cowling from the top down, so even bolt also will not because pretension is lax
Drop.
The motor provided in the utility model embodiment can include that knot installed by any of the above-described motor ventilation cover implementing form
Structure.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all in this reality
Within novel spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this practicality new
Within the protection domain of type.
Claims (6)
1. a motor ventilation hood mounting structure, it is characterised in that including:
Rubber strip (21), it is arranged in the bonding pad between described ventilator cowling (11) and motor case (12)；
Bolt (22), it passes the connecting hole of described casing (12) from ventilator cowling (11) side, with by described ventilator cowling
(11) it is connected with described casing (12)；
Spring washer (23), it is enclosed within described bolt (22) from described casing (12) side；With
Nut (24), it is locked on described bolt (22) by compressing described spring washer (23).
Mounting structure the most according to claim 1, it is characterised in that farther include:
Limited post (25), it is positioned between described ventilator cowling (11) and described casing (12), is used for being sleeved on described
On bolt (22), and the height of described limited post (25) is less than the thickness of described rubber strip (21).
Mounting structure the most according to claim 2, it is characterised in that described limited post is welded on described ventilator cowling.
Mounting structure the most according to claim 1, it is characterised in that described nut (24) is double nut.
Mounting structure the most according to any one of claim 1 to 4, it is characterised in that described bolt (22) welds
It is contained on described ventilator cowling (11), or is tightened in the screwed hole of described ventilator cowling (11).
6. a motor, it is characterised in that include that the motor ventilation cover as according to any one of claim 1 to 5 is installed
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620094799.XU CN205544746U (en) | 2016-01-29 | 2016-01-29 | Motor draft hood mounting structure and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620094799.XU CN205544746U (en) | 2016-01-29 | 2016-01-29 | Motor draft hood mounting structure and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205544746U true CN205544746U (en) | 2016-08-31 |
Family
ID=56773484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620094799.XU Active CN205544746U (en) | 2016-01-29 | 2016-01-29 | Motor draft hood mounting structure and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205544746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336406A (en) * | 2019-07-22 | 2019-10-15 | 浙江沈力防爆机电有限公司 | A kind of fire-proof motor equipped with damping base |
-
2016
- 2016-01-29 CN CN201620094799.XU patent/CN205544746U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336406A (en) * | 2019-07-22 | 2019-10-15 | 浙江沈力防爆机电有限公司 | A kind of fire-proof motor equipped with damping base |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |