CN209119978U - A kind of explosion-proof type gear case motor - Google Patents
A kind of explosion-proof type gear case motor Download PDFInfo
- Publication number
- CN209119978U CN209119978U CN201822214465.3U CN201822214465U CN209119978U CN 209119978 U CN209119978 U CN 209119978U CN 201822214465 U CN201822214465 U CN 201822214465U CN 209119978 U CN209119978 U CN 209119978U
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- Prior art keywords
- shell
- output shaft
- explosion
- gear case
- sealing ring
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Abstract
The utility model discloses a kind of explosion-proof type gear case motors, including brush direct current motor；Output shaft；Gear assembly is used to the rotation of brush direct current motor being transmitted to the output shaft；First shell and second shell, form the bearing cavity for accommodating the brush direct current motor and the gear assembly, first shell is equipped with the axis hole passed through for output shaft, and sealing ring is equipped on the output shaft, and output shaft is interference fitted by sealing ring thereon with the axis hole.The utility model adds sealing ring on output shaft, sealing ring is assembled on output shaft, when output shaft and first shell with sealing ring assemble, output shaft is interference fitted by the inner wall of sealing ring and axis hole thereon, to reach seal request, the sealing performance for improving gear case motor avoids extraneous combustible (such as refrigerating fluid) from entering bearing cavity.
Description
Technical field
The utility model relates to a kind of explosion-proof type gear case motors, belong to technical field of motors.
Background technique
Currently, the gear case motor for the ice crusher applied in refrigerator has exchange and direct current two types, alternating current generator is because of electricity
Machine service efficiency is low, while turning to and being difficult to control, gradually by market；The trash ice of the direct current generator scheme of a new generation is used
Gear case motor, may be implemented positive and negative rotation, and efficiency is higher than alternating current generator, is widely used.But direct current generator has and changes
To device, after operating, spark can be generated, if seal request is not achieved in the shell sealing of outside motor, explosive gas enters, meeting
Lead to explosion on fire.Novel refrigerating fluid is used especially because in recent years, refrigerator energy-saving is efficiently promoted, in refrigerator, the system
Cold liquid has flammable, explosivity, and in this case, conventional gear case motor has been unable to meet security requirement.
Utility model content
The technical problem to be solved by the utility model is to overcoming the deficiencies of the prior art and provide a kind of explosion-proof type gear
Case motor, to solve the sealing problem of gear case motor.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: a kind of explosion-proof type gear case motor, including
Brush direct current motor；
Output shaft；
Gear assembly, for the rotation of brush direct current motor to be transmitted to the output shaft；
First shell and second shell form the bearing cavity for accommodating the brush direct current motor and the gear assembly, the
One shell is equipped with the axis hole passed through for output shaft, is equipped with sealing ring on the output shaft, and output shaft is close by thereon
Seal and the axis hole are interference fitted.
Further, an at least road sealing groove being offered along its circumferential direction on output shaft, the sealing ring is installed in seal groove,
Sealing ring is rotated with output shaft synchronous.
Further, the surface of the sealing ring is coated with lubricant grease.
Further, the first shell and second shell connects using ultrasonic welding process, also, in first shell and
The junction of second shell is provided with the sealant layer of one fixed width.
Further, this explosion-proof type gear case motor further includes
Wiring board, for powering to brush direct current motor；
Third shell forms wiring board accommodating cavity with second shell, for carrying wiring board.
Further, it is provided with cable-through hole in second shell, sealing-plug is installed on cable-through hole, the connection electric wire on wiring board is logical
The hole crossed on sealing-plug enters bearing cavity, connect with brush direct current motor.
Further, the connection electric wire on wiring board and the hole on sealing-plug are interference fitted, on sealing-plug and second shell
Cable-through hole interference fit.
Using above-mentioned technical proposal, the utility model has the following beneficial effects:
1) the utility model adds sealing ring on output shaft, and sealing ring is assembled on output shaft, with sealing ring
When output shaft and first shell are assembled, output shaft is interference fitted by the inner wall of sealing ring and axis hole thereon, to reach close
Envelope requires, and improves the sealing performance of gear case motor, and extraneous combustible (such as refrigerating fluid) is avoided to enter bearing cavity.
2) a certain amount of sealant is coated in the weld of first shell and second shell, being formed has the close of one fixed width
Adhesive layer reaches seal request after welding first shell and second shell.
3) to avoid grease, and consider Insulation Problems, the utility model is by wiring board and brush direct current motor, gear set
Part is arranged in different cavitys, and wiring board is arranged in outside the bearing cavity that first shell and second shell are formed, in bearing cavity
Brush direct current motor, gear assembly isolation.When connection, cable-through hole is opened on the second housing, and add sealing-plug, further solve
The certainly sealing problem of bearing cavity.
Detailed description of the invention
Fig. 1 is the perspective view of the explosion-proof type gear case motor of the utility model；
Fig. 2 is the explosive view of the explosion-proof type gear case motor of the utility model；
Fig. 3 is the cross-sectional view of the explosion-proof type gear case motor of the utility model；
Fig. 4 is the structural schematic diagram of the output shaft of the utility model；
Fig. 5 is the attachment structure schematic diagram of first shell and second shell；
Fig. 6 is the schematic diagram of internal structure of the explosion-proof type gear case motor of the utility model；
Fig. 7 is the assembling schematic diagram of the connection electric wire and sealing-plug on wiring board.
Specific embodiment
In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model.
Unless not defining, the technical term or scientific term used herein is should be in the utility model fields
The ordinary meaning that personage with general technical ability is understood.Used in the utility model patent specification and claims
" first ", " second " and similar word are not offered as any sequence, quantity or importance, and are used only to distinguish different
Component part.Equally, the similar word such as "one" or " one " does not indicate that quantity limits yet, but indicates there is at least one
It is a.
As shown in Figures 1 to 7, a kind of explosion-proof type gear case motor, including brush direct current motor 1, output shaft 2, gear set
Part, gear assembly are used to the rotation of brush direct current motor 1 being transmitted to the output shaft 2；
It further include first shell 3 and second shell 4, first shell 3 and second shell 4, which are formed, accommodates the DC brush electricity
The bearing cavity of machine 1 and the gear assembly.First shell 3 is equipped with the axis hole 31 passed through for output shaft 2, and output shaft 2 passes through
Axis hole 31 in first shell 3, extends to outside from bearing cavity.Sealing ring 7 is installed, output shaft 2 passes through on the output shaft 2
Sealing ring 7 and the axis hole 31 thereon is interference fitted.Sealing ring 7 preferably uses rubber seal.
The utility model adds sealing ring 7 on output shaft 2, and sealing ring 7 is assembled on output shaft 2, has sealing ring 7
Output shaft 2 and first shell 3 when assembling, output shaft 2 is interference fitted by the inner wall of sealing ring 7 thereon and axis hole 31, from
And reach seal request, the sealing performance of gear case motor is improved, extraneous combustible (such as refrigerating fluid) is avoided to enter bearing cavity.
As a preferred embodiment, an at least road sealing groove 21 is offered along its circumferential direction on output shaft 2, in the present embodiment,
Be provided with two seals slot 21 on output shaft 2, be respectively mounted sealing ring 7 in two seals slot 21, when output shaft 2 rotates, sealing ring 7 with
Output shaft 2 rotates synchronously.The surface of the sealing ring 7 is preferably coated with lubricant grease, can prevent sealing ring 7 and the first shell 3 it
Between abrasion.
The first shell 3 is connect with second shell 4 using ultrasonic welding process.First shell 3 and second shell 4
Welding surface is trapezoidal faces, after ultrasonic bonding, because of the limitation of ultrasonic welding process, leads to the plane after welding, can also
There is certain stomata, can not be fully sealed.Since motor has certain needs, such as Fig. 5, in first shell 3 to sealing structure
With the weld of second shell 4, a certain amount of sealant is coated, forms the sealant layer 8 with one fixed width, to reach sealing
It is required that.
This explosion-proof type gear case motor further includes
Wiring board 5, for powering to brush direct current motor 1；
Third shell 6 forms wiring board accommodating cavity with second shell 4, for carrying wiring board 5.
It is provided with cable-through hole in second shell 4, sealing-plug 9 is installed on cable-through hole, the connection electric wire 51 on wiring board 5 passes through
Hole on sealing-plug 9 enters bearing cavity, connect with brush direct current motor 1.On connection electric wire and sealing-plug 9 on wiring board 5
Hole interference fit, the cable-through hole in sealing-plug 9 and second shell 4 is interference fitted.
To avoid wiring board from being polluted by grease, there is good insulating properties, the utility model is by wiring board 5 and DC brush
Motor 1, gear assembly are arranged in different cavitys, and the carrying that first shell 3 and second shell 4 are formed is arranged in wiring board 5
Outside chamber, it is isolated with brush direct current motor 1, the gear assembly in bearing cavity, wiring board 5 is located at third shell 6 and 4 shape of second shell
At wiring board accommodating cavity in, by opening cable-through hole in second shell 4, make connection electric wire 51 and direct current on wiring board 5
Brush motor 1 connects.In order to increase sealing performance, sealing-plug 9 is added on the cable-through hole of second shell, using sealing-plug 9 with
The interference fit of cable-through hole in the interference fit and sealing-plug 9 and second shell 4 of electric wire 51 is connected, realizes high sealing.It is close
Blocking 9 is preferably made of high temperature resistant elastomeric material.
Particular embodiments described above, to the utility model solve the technical issues of, technical scheme and beneficial effects into
It has gone further description, it should be understood that the foregoing is merely specific embodiment of the utility model, and has not had to
In limitation the utility model, within the spirit and principle of the utility model, any modification, equivalent substitution and improvement done
Deng should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of explosion-proof type gear case motor, it is characterised in that: including
Brush direct current motor (1)；
Output shaft (2)；
Gear assembly, for the rotation of brush direct current motor (1) to be transmitted to the output shaft (2)；
First shell (3) and second shell (4) form the carrying for accommodating brush direct current motor (1) and the gear assembly
Chamber, first shell (3) are equipped with the axis hole (31) passed through for output shaft (2), are equipped with sealing ring on the output shaft (2)
(7), output shaft (2) is interference fitted by sealing ring (7) thereon with the axis hole (31).
2. explosion-proof type gear case motor according to claim 1, it is characterised in that: output shaft opens up on (2) along its circumferential direction
There is an at least road sealing groove (21), the sealing ring (7) is installed in seal groove (21), and sealing ring (7) is synchronous with output shaft (2)
Rotation.
3. explosion-proof type gear case motor according to claim 2, it is characterised in that: the surface of the sealing ring (7) is coated with
Lubricant grease.
4. explosion-proof type gear case motor according to claim 1, it is characterised in that: the first shell (3) and second shell
Body (4) is connected using ultrasonic welding process, also, is provided with centainly in the junction of first shell (3) and second shell (4)
The sealant layer (8) of width.
5. explosion-proof type gear case motor according to claim 1, it is characterised in that: this explosion-proof type gear case motor further includes
Wiring board (5), for powering to brush direct current motor (1)；
Third shell (6) forms wiring board accommodating cavity with second shell (4), for carrying wiring board (5).
6. explosion-proof type gear case motor according to claim 5, it is characterised in that: second shell is provided with cable-through hole on (4),
Sealing-plug (9) are installed on cable-through hole, the connection electric wire (51) on wiring board (5) enters carrying by the hole on sealing-plug (9)
Chamber is connect with brush direct current motor (1).
7. explosion-proof type gear case motor according to claim 6, it is characterised in that: the connection electric wire on wiring board (5)
(51) it is interference fitted with the hole on sealing-plug (9), the cable-through hole on sealing-plug (9) and second shell (4) is interference fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822214465.3U CN209119978U (en) | 2018-12-27 | 2018-12-27 | A kind of explosion-proof type gear case motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822214465.3U CN209119978U (en) | 2018-12-27 | 2018-12-27 | A kind of explosion-proof type gear case motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209119978U true CN209119978U (en) | 2019-07-16 |
Family
ID=67208758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822214465.3U Active CN209119978U (en) | 2018-12-27 | 2018-12-27 | A kind of explosion-proof type gear case motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209119978U (en) |
-
2018
- 2018-12-27 CN CN201822214465.3U patent/CN209119978U/en active Active
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| GR01 | Patent grant |