CN207315098U - Subway shield door ball screw - Google Patents
Subway shield door ball screw Download PDFInfo
- Publication number
- CN207315098U CN207315098U CN201721135778.9U CN201721135778U CN207315098U CN 207315098 U CN207315098 U CN 207315098U CN 201721135778 U CN201721135778 U CN 201721135778U CN 207315098 U CN207315098 U CN 207315098U
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- China
- Prior art keywords
- screw
- ball
- nut
- rotary type
- shield door
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses subway shield door ball screw, including two ball-screws and shift fork, the ball-screw is nut rotary type ball-screw, steering box, one end assembling motor of the nut rotary type ball-screw away from steering box are assembled between the nut rotary type ball-screw；The outer nut of the shift fork and nut rotary type ball-screw is affixed.Subway shield door ball screw in the utility model, by using two rotary ball-screws of the identical standard nut of structure, avoid using non-standard product, it can ensure the operation stability and security of device, at the same time, using the affixed mounting design of the outer nut of shift fork and nut rotary type ball-screw, can not only ensure device stable operation, and above-mentioned mounting means compare difficulty needed for the mode of dress bearing and required precision it is relatively low.
Description
Technical field
It the utility model is related to railway art, more particularly to the one of the station of passenger protection device and platform is well matched
Put.
Background technology
The common transmission system of subway shield door mainly has belt transmission and ball-screw-transmission.Belt transmission price is just
Preferably, simple installation, occupies most of market, but the change of belt tension can cause door body movement unstable in operation.Adopt
With the shield door of ball-screw, it has good stability, and can conveniently realize self-locking.In the prior art, using two phase despinings
Transmission device of the ball-screw as shield door, wherein left-handed ball-screw is non-standard product, which not only manufactures tired
Difficult and quality is unstable.Meanwhile shield door door body needs with feed screw nut to be connected by a shift fork, shift fork requirement and silk
Thick stick nut cannot be relatively moved but can relatively rotated, and generally realize this effect by filling bearing on feed screw nut, but
It is very stringent that to be the program control rigging error, and stability is bad, and concentricity is slightly worse, and to will result in shift fork stuck.
Utility model content
To solve in the prior art, the existing left-handed ball-screw using non-standard product of subway shield door, is not easy to make
Make and quality is unstable, shift fork assembling is stringent, easily leads to stuck technical problem, and the technical solution of the utility model is as follows：
Subway shield door ball screw in the utility model, including two ball-screws and shift fork, it is described
Ball-screw is nut rotary type ball-screw, and steering box, the nut rotation are assembled between the nut rotary type ball-screw
One end assembling motor of the rotatable ball-screw away from steering box；The outer nut of the shift fork and nut rotary type ball-screw is consolidated
Connect.
In a preferred embodiment, shaft coupling is assembled between the nut rotary type ball-screw and steering box,
Shaft coupling is assembled between the nut rotary type ball-screw and motor.
In a preferred embodiment, the shift fork is fixed in the outer spiral shell of nut rotary type ball-screw by screw
It is female.
In a preferred embodiment, the shift fork is connected by connection component with shield door, the connection component
For connecting shaft and drawing block.
In a preferred embodiment, the inner nut installation guide wheel of the nut rotary type ball-screw, it is described to lead
Wheel is connected with inner nut by guide wheel connection component, and the guide wheel connection component is guide wheel mounting blocks and guide wheel shaft.
In a preferred embodiment, the guide wheel mounting blocks installation isolation.
Subway shield door ball screw in the utility model, compared with prior art, its advantage is：
Subway shield door ball screw in the utility model, by using the identical standard spiral shell of two structures
Female rotary ball-screw, avoids using non-standard product, it is ensured that the operation stability and security of device, meanwhile, use
The affixed mounting design of the outer nut of shift fork and nut rotary type ball-screw, can not only ensure device stable operation, and on
State mounting means compare dress bearing mode needed for difficulty and required precision it is relatively low.
Brief description of the drawings
Fig. 1 is the structure diagram of subway shield door ball screw in the utility model；
Fig. 2 is the structure diagram of feed screw nut in the utility model.
Embodiment
Below in conjunction with the attached drawing of the utility model, the technical solution of the utility model is clearly and completely described.
Based on the embodiment in the utility model, what those of ordinary skill in the art were obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
As shown in Figure 1, the utility model provides subway shield door ball screw, including two nut rotations
Formula ball-screw, is respectively the first nut rotary type ball-screw 1 and the second nut rotary type ball-screw 2, and the first nut revolves
Steering box 9, the first nut rotary type ball-screw 1 are assembled between rotatable 1 and second nut rotary type ball-screw 2 of ball-screw
One end assembling motor 3 away from steering box 9, opposite direction rotates each other for the input shaft and output shaft of steering box 9, therefore using above-mentioned
The feed screw nuts 17 of two nut rotary type ball-screws can be achieved along leading screw is opposite or relative motion in design.
Preferable connection mode is in the use of the new type：Motor 3 passes through 6 and first nut rotary type ball of first shaft coupling
Leading screw 1 connects, and the first nut rotary type ball-screw 1 is connected by second shaft coupling 7 with steering box 9, and steering box 9 passes through the 3rd
Shaft coupling 8 is connected with the second nut rotary type ball-screw 2.
As shown in Fig. 2, shift fork 10 and the outer nut 4 of nut rotary type ball-screw are affixed, to ensure the installation of shift fork 10
Intensity, shift fork 10 are fixed in the outer nut 4 of nut rotary type ball-screw by screw.Using above-mentioned design, it is ensured that device
It is stable, while above-mentioned mounting means is low to assembly precision requirement, installation difficulty is low.
The preferable structure of the utility model is：Shift fork 10 is connected by connection component with shield door, and connection component is connection
Axis 11 and drawing block 12, shift fork 10, connecting shaft 11 and drawing block 12 formed a push and pull system, nut rotary type ball-screw with
There is a small amount of adjusting space between shield door door body, make shift fork 10 be not easy to block.The inner nut 5 of nut rotary type ball-screw is pacified
Guide wheel 13 is filled, guide wheel 13 is connected with inner nut 5 by guide wheel connection component, and guide wheel connection component is guide wheel mounting blocks 14 and guide wheel
Axis 15, guide wheel mounting blocks 14 install isolation 16, and guide wheel is used for the direction of motion for controlling feed screw nut 17, and isolation 16 can shield
Optoelectronic switch is triggered when covering door-closing in-place.
The above, is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (6)
1. subway shield door ball screw, including two ball-screws and shift fork, it is characterised in that the ball wire
Thick stick is nut rotary type ball-screw, and steering box, the nut rotary type rolling are assembled between the nut rotary type ball-screw
One end assembling motor of the ballscrew away from steering box；The outer nut of the shift fork and nut rotary type ball-screw is affixed.
2. subway shield door ball screw according to claim 1, it is characterised in that the nut rotary type
Shaft coupling is assembled between ball-screw and steering box, shaft coupling is assembled between the nut rotary type ball-screw and motor.
3. subway shield door ball screw according to claim 1, it is characterised in that the shift fork passes through spiral shell
Nail is fixed in the outer nut of nut rotary type ball-screw.
4. subway shield door ball screw according to claim 1, it is characterised in that the shift fork passes through company
Connected components are connected with shield door, and the connection component is connecting shaft and drawing block.
5. subway shield door ball screw according to claim 1, it is characterised in that the nut rotary type
The inner nut installation guide wheel of ball-screw, the guide wheel are connected with inner nut by guide wheel connection component, the guide wheel connection group
Part is guide wheel mounting blocks and guide wheel shaft.
6. subway shield door ball screw according to claim 5, it is characterised in that the guide wheel mounting blocks
Isolation is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721135778.9U CN207315098U (en) | 2017-09-06 | 2017-09-06 | Subway shield door ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721135778.9U CN207315098U (en) | 2017-09-06 | 2017-09-06 | Subway shield door ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207315098U true CN207315098U (en) | 2018-05-04 |
Family
ID=62385696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721135778.9U Active CN207315098U (en) | 2017-09-06 | 2017-09-06 | Subway shield door ball screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207315098U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102210970B1 (en) * | 2019-12-30 | 2021-02-04 | 인터콘시스템스 주식회사 | a structure for asjusting fine angle of a drive shaft of an automatic door |
-
2017
- 2017-09-06 CN CN201721135778.9U patent/CN207315098U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102210970B1 (en) * | 2019-12-30 | 2021-02-04 | 인터콘시스템스 주식회사 | a structure for asjusting fine angle of a drive shaft of an automatic door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100000 Beijing Fengtai District South Fourth Ring West Road 188 No. 18 District 2 Building (Park) Patentee after: Beijing Dinghan Technology Group Co., Ltd. Address before: 100000 Beijing Fengtai District South Fourth Ring West Road 188 No. 18 District 2 Building (Park) Patentee before: Beijing Dinghan Technology Co., Ltd. |