CN204992915U - A transmission structure for wheelchair motors - Google Patents
A transmission structure for wheelchair motors Download PDFInfo
- Publication number
- CN204992915U CN204992915U CN201520628985.2U CN201520628985U CN204992915U CN 204992915 U CN204992915 U CN 204992915U CN 201520628985 U CN201520628985 U CN 201520628985U CN 204992915 U CN204992915 U CN 204992915U
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- CN
- China
- Prior art keywords
- output shaft
- sliding axle
- tooth
- push rod
- trundle
- Prior art date
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a transmission structure for wheelchair motors, including the output shaft, seted up the bar opening on the wall of output shaft both sides, output shaft open end department is provided with the ejector pin, and the end of ejector pin is provided with the arch, is provided with the sliding shaft in the output shaft, has seted up the through hole on the wall of sliding shaft both sides, and the one end of sliding shaft is provided with the breach, still is provided with the elastic component, and the elastic component makes sliding shaft and ejector pin in close contact with, has still linked firmly the trundle on the sliding shaft, rotating on the output shaft outer wall and being provided with first driven tooth, the terminal surface of first driven tooth is provided with the ring tooth that can put into the trundle. The utility model discloses a setting of ejector pin and elastic component can make the sliding shaft slide in the output shaft to can drive the trundle and take place to remove and cooperate with first driven tooth, and then can realize the transmission between first driven intertooth space and the output shaft and break away from.
Description
Technical field
The utility model relates to wheelchair accessory field, especially relates to the drive mechanism for wheel chair motor.
Background technology
At present in electric wheelchair, normally drive driven tooth to rotate by motor, then directly act on wheel by driven tooth and make it carry out rotating to realize moving ahead or retreating of electric wheelchair.This kind of drive, though the driving to wheel can be realized, but wheel always keeps associated relation with driven tooth, like this, when adopting hand-power to promote wheelchair when stopping motor driving, the used of magnetic steel of motor effect can produce larger internal drag to the rotation of wheel, so, makes hand push job difficult time-consuming.
Utility model content
The purpose of this utility model overcomes the deficiencies in the prior art, be provided for the drive mechanism of wheel chair motor, by the setting of push rod and elastic component, sliding axle can be made to slide in output shaft, thus trundle can be driven to be moved and to match with the first driven tooth, and then the transmission that can realize between the first driven tooth and between output shaft and disengaging.
The purpose of this utility model is achieved through the following technical solutions:
For the drive mechanism of wheel chair motor, comprise the one end open other end to close and the output shaft of hollow setting, output shaft two side offers the corresponding strip gab arranged, output shaft open end is rotated and is provided with push rod, the end of push rod is provided with projection, slide in output shaft and be provided with sliding axle, sliding axle two side offers the corresponding through hole arranged, one end of sliding axle is provided with and holds protruding breach, region between the other end of sliding axle and output shaft blind end is also provided with elastic component, elastic component makes sliding axle and push rod close contact, sliding axle is also fixed with the trundle through two strip gabs and two through holes, output shaft outer wall rotates and is provided with the first driven tooth, the first driven tooth is provided with in the end face near trundle the ring tooth can inserting trundle.
In the utility model, the blind end of output shaft carries out closing of this end by arranging back-up ring; Elastic component can be Compress Spring; Trundle is fixed on sliding axle by trip bolt; The setting of strip gab is for the movement of trundle of stepping down.Due to when applying, the first driven tooth is in rotary motion, thus can insert trundle for realizing it under any turned position, be then ring tooth by the vibrational power flow coordinated with trundle.Particularly, ring tooth can be the tooth mouth of indent also hoop distribution in the first driven tooth end face.During the utility model reset condition, projection is inserted in breach, and sliding axle like this can be positioned at the highest distance position away from output shaft blind end under the supporting role of elastic component.Now, trundle is then inserted in ring tooth, and in this case, when the first driven tooth rotates by motive power driving, then the gearing by trundle drives output shaft also synchronous axial system.During application, output shaft then directly acts on wheel, is with motor car wheel to rotate by output shaft, so then can realize the driving to wheel.
When adopting when motor need be stopped to drive hand-power to promote wheelchair, then rotate push rod, make projection progressively depart from breach.Be arranged so that sliding axle is in being formed with low level and a high position on the other side near that end of push rod due to breach, low level is then arrange position jaggy.So, protruding then be progressively contacted with the high level of this end face of sliding axle, in this process, the supporting role that sliding axle then progressively overcomes elastic component is slided near the direction of output shaft blind end, contact with a high position for sliding axle completely until protruding, now sliding axle is then positioned at the proximal most position near output shaft blind end.Now, trundle is then progressively separated with ring tooth under the drive of sliding axle, thus makes to lose between the first driving cog and output shaft gearing and independent of one another.Like this, when hand-power promotes vehicle wheel rotation, only output shaft can be driven to rotate, and no longer be subject to the drag effect of the first driving cog.
For ease of realizing the rotation of push rod and improving the stability of sliding axle position in output shaft, further, described sliding axle is also provided with location notch in this end near described push rod, described location notch and described breach stagger and arrange, and are axially arranged in the shape of a spiral to the low level of breach along sliding axle by the high level of location notch.In the utility model, location notch is arranged at sliding axle in the high level of that end near push rod, and position when it is high-order for positioning mandril contact, to improve the stability of the Contact of push rod and sliding axle.And spiral helicine setting can meet the pathway requirements being raised in breach and sliding to location notch, so, the sensitivity that push rod acts on sliding axle can be improved.
For realizing push rod rotating relative to output shaft, further, the contact position of described push rod and described output shaft is provided with multiple ball.By the setting of roller, the friction between push rod and output shaft can be reduced, not only can improve sensitivity, also can reduce wearing and tearing to each other simultaneously.
For ease of rotating push rod, further, the front end of described push rod is fixed with driver plate by screw, and the junction of driver plate and push rod is also run through straight pin.In the utility model, by the setting of straight pin and screw, rotating driver plate then can drive push rod to rotate in output shaft.
Further, also comprise tooth case, described output shaft is installed in tooth case by balladeur train oil sealing part, is arranged with wheel hub outside tooth case.During the utility model application, wheel is sheathed on wheel hub, so arranges, and wheel and output shaft can be made always to maintain the connection, to realize driving wheel to rotate by output shaft.
Further, also comprise the casing be connected with tooth case, the second driven tooth being provided with motor in casing and being meshed with the motor shaft of motor, the second driven tooth is connected with power transmission shaft, power transmission shaft is arranged with the driving tooth be meshed with described first driven tooth.In the utility model, transmission between the motor shaft of motor and the second driven tooth is primary transmission, and the transmission between driving tooth and the first driven tooth is secondary transmission, by the gearing of this primary transmission and secondary transmission, can realize the driving of motor to the first driven tooth makes it rotate, again by the gearing of trundle, and drive output shaft also to rotate, finally realize the rotation of wheel.
Compared with prior art, the utility model has following beneficial effect: by rotating the position relationship between push rod change projection and breach, coordinating between push rod with sliding axle can be realized, sliding axle is slided in output shaft, thus trundle can be driven to be moved to realize and the coordinating of the first driven tooth, and then the transmission that can realize between the first driven tooth and between output shaft and disengaging.When applying, the annexation that between wheel and output shaft, total maintenance is firm, also namely output shaft always acts on wheel.When trundle is inserted in ring tooth, output shaft then by the gearing of trundle, along with the first driven tooth generation synchronous axial system rotates to be with motor car wheel.And when needs hand-power promotes wheelchair, then moving trundle by sliding axle makes it depart from ring tooth, make lose gearing between the first driven tooth and output shaft and independently of one another, like this, just can complete the work that manual force promotes wheel easily.
Accompanying drawing explanation
Fig. 1 is the structural representation of the drive mechanism specific embodiment for wheel chair motor described in the utility model;
Fig. 2 is the structural representation for the first driven tooth in the drive mechanism of wheel chair motor and an output shaft specific embodiment described in the utility model;
Fig. 3 is the structural representation for the first driven tooth in the drive mechanism of wheel chair motor and a trundle specific embodiment described in the utility model;
Fig. 4 is the structural representation for an output shaft specific embodiment in the drive mechanism of wheel chair motor described in the utility model;
Fig. 5 is the structural representation for a sliding axle specific embodiment in the drive mechanism of wheel chair motor described in the utility model;
Fig. 6 is the structural representation for a push rod specific embodiment in the drive mechanism of wheel chair motor described in the utility model.
Name in accompanying drawing corresponding to Reference numeral is called: 1, output shaft, 11, strip gab, 2, sliding axle, 21, through hole, 22, breach, 23, location notch, 3, push rod, 31, protruding, 4, elastic component, 5, trundle, the 6, first driven tooth, 61, ring tooth, 7, ball, 8, driver plate, 81, straight pin, 9, tooth case, 10, wheel hub, 12, motor, the 13, second driven tooth, 14, power transmission shaft, 15, driving tooth, 16, casing.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment 1
As shown in Figures 1 to 6, for the drive mechanism of wheel chair motor, comprise the one end open other end to close and the output shaft 1 of hollow setting, output shaft 1 two side offers the corresponding strip gab 11 arranged, output shaft 1 open end is rotated and is provided with push rod 3, the end of push rod 3 is provided with protruding 31, slide in output shaft 1 and be provided with sliding axle 2, sliding axle 2 two side offers the corresponding through hole 21 arranged, one end of sliding axle 2 is provided with the breach 22 holding protruding 31, region between the other end of sliding axle 2 and output shaft 1 blind end is also provided with elastic component 4, elastic component 4 makes sliding axle 2 and push rod 3 close contact, sliding axle 2 is also fixed with the trundle 5 through two strip gabs 11 and two through holes 21, on output shaft 1 outer wall, rotation is provided with the first driven tooth 6, first driven tooth 6 and the end face near trundle 5 is provided with the ring tooth 61 can inserting trundle 5.
In the present embodiment, the blind end of output shaft 1 carries out closing of this end by arranging back-up ring; Elastic component 4 can be Compress Spring; Trundle 5 is fixed on sliding axle 2 by trip bolt; The setting of strip gab 11 is for the movement of trundle 5 of stepping down.Due to when applying, the first driven tooth 6 is in rotary motion, thus can insert in it by trundle 5 for realizing it under any turned position, be then ring tooth 61 by the vibrational power flow coordinated with trundle 5.Particularly, ring tooth 61 can be the tooth mouth of indent also hoop distribution in the first driven tooth 6 end face.During the present embodiment home state, protruding 31 insert in breach 22, and sliding axle 2 like this can be positioned at the highest distance position away from output shaft 1 blind end under the supporting role of elastic component 4.Now, trundle 5 is inserted in ring tooth 61, and in this case, when the first driven tooth 6 rotates by motive power driving, then the gearing by trundle 5 drives output shaft 1 also synchronous axial system.During application, output shaft 1 directly acts on wheel, is with motor car wheel to rotate by output shaft 1, so then can realize the driving to wheel.
When adopting when motor need be stopped to drive hand-power to promote wheelchair, then rotate push rod 3, make protruding 31 progressively to depart from breach 22.Be arranged so that sliding axle 2 is in being formed with low level and a high position on the other side near that end of push rod 3 due to breach 22, low level is then the position being provided with breach 22.So, projection 31 is progressively contacted with the high level of this end face of sliding axle 2, in this process, the supporting role that sliding axle 2 progressively overcomes elastic component 4 is slided near the direction of output shaft 1 blind end, until protruding 31 contact with a high position for sliding axle 2 completely, now sliding axle 2 is positioned at the proximal most position near output shaft 1 blind end.Now, trundle 5 is progressively separated with ring tooth 61 under the drive of sliding axle 2, thus makes to lose between the first driving cog 6 and output shaft 1 gearing and independent of one another.Like this, when hand-power promotes vehicle wheel rotation, only output shaft 1 can be driven to rotate, and no longer be subject to the drag effect of the first driving cog 6.
Embodiment 2
The present embodiment has made following restriction further on the basis of embodiment 1: described sliding axle 2 is also provided with location notch 23 in this end near described push rod 3, described location notch 23 staggers with described breach 22 and arranges, and is axially arranged in the shape of a spiral to the low level of breach 22 along sliding axle 2 by the high level of location notch 23.In the present embodiment, location notch 23 is arranged at sliding axle 2 in the high level of that end near push rod 3, position when it contacts a high position for positioning mandril 3, to improve the stability of push rod 3 and the Contact of sliding axle 2.And spiral helicine setting can meet the pathway requirements that protruding 31 slide to location notch 23 in breach 22, so, the sensitivity that push rod 3 acts on sliding axle 2 can be improved.
Above content is the further description done the utility model in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not departing from other execution modes drawn under the technical solution of the utility model, all should be included in protection range of the present utility model.
Claims (6)
1. for the drive mechanism of wheel chair motor, it is characterized in that: comprise the one end open other end and close and the output shaft (1) of hollow setting, output shaft (1) two side offers the corresponding strip gab (11) arranged, output shaft (1) open end is rotated and is provided with push rod (3), the end of push rod (3) is provided with projection (31), slide in output shaft (1) and be provided with sliding axle (2), sliding axle (2) two side offers the corresponding through hole (21) arranged, one end of sliding axle (2) is provided with the breach (22) holding protruding (31), region between the other end of sliding axle (2) and output shaft (1) blind end is also provided with elastic component (4), elastic component (4) makes sliding axle (2) and push rod (3) close contact, sliding axle (2) is also fixed with the trundle (5) through two strip gabs (11) and two through holes (21), output shaft (1) outer wall rotates and is provided with the first driven tooth (6), the first driven tooth (6) is provided with in the end face near trundle (5) the ring tooth (61) can inserting trundle (5).
2. the drive mechanism for wheel chair motor according to claim 1, it is characterized in that: described sliding axle (2) is also provided with location notch (23) in this end near described push rod (3), described location notch (23) and described breach (22) stagger and arrange, and are axially arranged in the shape of a spiral to the low level of breach (22) along sliding axle (2) by the high level of location notch (23).
3. the drive mechanism for wheel chair motor according to claim 1, is characterized in that: described push rod (3) is provided with multiple ball (7) with the contact position of described output shaft (1).
4. the drive mechanism for wheel chair motor according to claim 1, is characterized in that: the front end of described push rod (3) is fixed with driver plate (8) by screw, and driver plate (8) also runs through with the junction of push rod (3) straight pin (81).
5. according to the drive mechanism for wheel chair motor in claim 1 ~ 4 described in any one, it is characterized in that: also comprise tooth case (9), described output shaft (1) is installed in tooth case (9) by balladeur train oil sealing part, is arranged with wheel hub (10) outside tooth case (9).
6. the drive mechanism for wheel chair motor according to claim 5, it is characterized in that: also comprise the casing (11) be connected with tooth case (9), the second driven tooth (13) being provided with motor (12) in casing (11) and being meshed with the motor shaft of motor (12), second driven tooth (13) is connected with power transmission shaft (14), power transmission shaft (14) is arranged with the driving tooth (15) be meshed with described first driven tooth (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520628985.2U CN204992915U (en) | 2015-08-19 | 2015-08-19 | A transmission structure for wheelchair motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520628985.2U CN204992915U (en) | 2015-08-19 | 2015-08-19 | A transmission structure for wheelchair motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204992915U true CN204992915U (en) | 2016-01-20 |
Family
ID=55127239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520628985.2U Withdrawn - After Issue CN204992915U (en) | 2015-08-19 | 2015-08-19 | A transmission structure for wheelchair motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204992915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119421A (en) * | 2015-08-19 | 2015-12-02 | 重庆茂田机械有限公司 | Transmission structure applied to wheelchair motor |
| CN105896813A (en) * | 2016-05-26 | 2016-08-24 | 重庆茂田机械有限公司 | Integrated wheelchair speed reduction motor |
-
2015
- 2015-08-19 CN CN201520628985.2U patent/CN204992915U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119421A (en) * | 2015-08-19 | 2015-12-02 | 重庆茂田机械有限公司 | Transmission structure applied to wheelchair motor |
| CN105119421B (en) * | 2015-08-19 | 2018-01-02 | 重庆茂田机械有限公司 | Drive mechanism for wheel chair motor |
| CN105896813A (en) * | 2016-05-26 | 2016-08-24 | 重庆茂田机械有限公司 | Integrated wheelchair speed reduction motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20180102 |