CN109820660A - Clutch component for crawler type stair climbing wheelchair main wheel gear case - Google Patents
Clutch component for crawler type stair climbing wheelchair main wheel gear case Download PDFInfo
- Publication number
- CN109820660A CN109820660A CN201910235041.1A CN201910235041A CN109820660A CN 109820660 A CN109820660 A CN 109820660A CN 201910235041 A CN201910235041 A CN 201910235041A CN 109820660 A CN109820660 A CN 109820660A
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- CN
- China
- Prior art keywords
- main wheel
- gear
- box
- rocker arm
- driving lever
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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
A kind of clutch component for crawler type stair climbing wheelchair main wheel gear case, including handle, the handle, the lower section of the handle is equipped with plectrum, and by universal axis connection between the handle and one end of plectrum, the other end of the plectrum is connected with guide pin, the guide pin is fixed on connecting rod, the lower section of the connecting rod is equipped with rocker arm, is connected between one end and connecting rod of the rocker arm by pivot pin, and the other end of the rocker arm is connect by driving lever with the gear-box to clutch.The beneficial effect is that: installation space is saved, production cost is reduced, guarantees the synchronous interface of two sides main wheel, avoids security risk.
Description
Technical field
The present invention relates to electric wheelchair field, it is especially a kind of for crawler type stair climbing wheelchair main wheel gear case from
Seaming element.
Background technique
The clutch component of the main wheel driving motor of existing crawler type stair climbing wheelchair all there is a problem of to be modified.Its from
Closing principle, there is no problem, so that it is disconnected engagement by stirring gear therein, disconnects the mesh that motor drives main wheel to reach
's.But its structure is designed as stirring element by controlling two, realizes the clutch operation to two gearbox medium gears respectively.
In process of production, more design space is occupied, since wheelchair design structure is more accurate, space utilization rate is very high,
Two clutch driving occupied spaces are big.Production cost required for two clutches simultaneously is also higher.In use, due to needing
It is each turned off the motor driven of the left and right sides, if cannot synchronously complete, will result in a main wheel has driving, a main wheel
Unloaded situation, can be such that wheelchair turns in this way, abnormally dangerous.
Summary of the invention
The purpose of the present invention is to solve the above problems, devise a kind of for crawler type stair climbing wheelchair main wheel tooth
The clutch driving assembly of roller box.Specific design scheme are as follows:
A kind of clutch component for crawler type stair climbing wheelchair main wheel gear case, including handle, the handle are described
The lower section of handle is equipped with plectrum, and by universal axis connection between the handle and one end of plectrum, the other end of the plectrum connects
It is connected to guide pin, the guide pin is fixed on connecting rod, and the lower section of the connecting rod is equipped with rocker arm, one end of the rocker arm and connecting rod
Between connected by pivot pin, the other end of the rocker arm is connect by driving lever with the gear-box to clutch,
The universal shaft sleeve is equipped with limit on guide sleeve, being also cased with gasket, the end of the gasket on the universal shaft
Pin.
The head end of the handle and the universal shaft are keyed, the universal shaft sleeve on guide sleeve, the guide sleeve with it is described
Universal shaft rotation connection, the guide sleeve are equipped with the prepared screw-bolt hole for fixing with wheelchair, are also cased with gasket on the universal shaft,
The end of the gasket is equipped with spacer pin, and the lower diameter of the spacer pin is less than the upper diameter of the spacer pin, described
Guide sleeve is equipped with the pin hole for the spacer pin, and the lower part of the spacer pin is agreed with the pin hole inserts embedding, the spacer pin
It is slidably connected with the gasket, what the load-bearing of the handle, universal shaft, plectrum passed through guide sleeve and wheelchair is fixedly connected with realization.
The universal shaft is unilateral universal shaft, passes through the cross of universal shaft between the universal shaft and one end of the plectrum
Universal joint connection, the other end of the plectrum are equipped with the through-hole of oblong, and the guide pin runs through the oblong from bottom to top
Through-hole, nut is equipped at the top of the guiding axis, and the nut realizes the limit along the guiding axis axial direction to plectrum
Position, prevents it from holding out guiding axis from upside, and the bottom of the guiding axis and the connecting rod insert embedding rear rotation connection.
The quantity of the gear-box is two, and two gear-boxes respectively drive two driving wheels of wheelchair, two institutes
It states gear-box to be distributed in left and right, driving lever, rocker arm is mounted on each gear-box, two driving levers pass through described respectively
Pivot pin is connect with the left and right ends of the connecting rod.
The input terminal of the gear-box is connected with motor, and the motor passes through the input main wheel in turbine and the gear-box
Engagement connection, the input main wheel are connect with the body pivot of the gear-box by entering spindle, are pacified in the entering spindle
Equipped with input accessory whorl, the input accessory whorl engages connection with output wheel, and the output wheel and output shaft are keyed, and the driving lever is in
Inverted " T " shape structure, the lower part of the driving lever are embedded between the output wheel and the shell of gear-box, the output shaft and institute
It states feather key between output wheel to connect, reset spring is cased on the output shaft, the reset spring is pressure spring, the reset spring
It is divided into the driving lever positioned at the two sides of the output wheel.
The pivot pin is connect with the connecting-rod bearing, and the bearing connecting for the pivot pin with connecting rod is pressure bearing, institute
The bottom end of pivot pin is stated through the rocker arm and bolt cap is installed, the rocker arm provides the support to the connecting rod, the pivot pin
The limit to the connecting rod is realized at top by bolt, and the pressure bearing guarantees to limit connecting rod along pivot pin axial direction same
When can using the axle center of pivot pin as axis rotate.
The rocker arm and the driving lever are keyed, and axle sleeve, the driving lever and the axle sleeve are equipped with below the rocker arm
It is fixedly connected, the outer sheath restraining position ring block of the axle sleeve, the stop collar is fixed on the top surface of gear-box, and the axle sleeve is placed
In on the top surface of the gear-box, the side of the stop collar is equipped with limit hole, and the limit hole is along the stop collar radial direction side
To the arc-shaped structure in section, through there is limited bolt in the limit hole, the limited bolt is fixedly connected with axle sleeve, the driving lever
Top be equipped with nut, clamp the rocker arm in conjunction with axle sleeve and realize support, while the nut is equipped on the top surface of axle sleeve, realize
For axle sleeve along the limited support of driving lever axial direction, the axle sleeve, which is equipped on gear-box, realizes support to driving lever, rocker arm.
The clutch for crawler type stair climbing wheelchair main wheel gear case that above-mentioned technical proposal through the invention obtains
Driving assembly, the beneficial effect is that:
Installation space is saved, production cost is reduced, guarantees the synchronous interface of two sides main wheel, avoids security risk.
Detailed description of the invention
Fig. 1 is the structural representation of the clutch component of the present invention for crawler type stair climbing wheelchair main wheel gear case
Figure；
Fig. 2 is that the facing structure of the clutch component of the present invention for crawler type stair climbing wheelchair main wheel gear case is shown
It is intended to；
Fig. 3 is that the side view structure of the clutch component of the present invention for crawler type stair climbing wheelchair main wheel gear case is shown
It is intended to；
Fig. 4 is the structural schematic diagram that handle of the present invention and plectrum pass through universal axis connection；
Fig. 5 is the side structure schematic view that handle of the present invention and plectrum pass through universal axis connection；
Fig. 6 is the structural schematic diagram that plectrum and driving lever of the present invention are connected by rocker arm；
Fig. 7 is the side structure schematic view that plectrum and driving lever of the present invention are connected by rocker arm；
Fig. 8 is the structural schematic diagram inside gear-box of the present invention；
Fig. 9 is the structural schematic diagram of the present invention that existing clutch is installed for crawler type stair climbing wheelchair；
Figure 10 is the knot after the clutch component installation of the present invention for crawler type stair climbing wheelchair main wheel gear case
Structure schematic diagram；
Figure 11 is the structural schematic diagram of driving lever of the present invention；
In figure, 1, handle；2, plectrum；3, universal shaft；4, guide pin；5, connecting rod；6, rocker arm；7, pivot pin；8, driving lever；9, tooth
Roller box；9a, turbine；9b, input main wheel；9c, entering spindle；9d, input accessory whorl；9e, reset spring；9f, output wheel；It is 9g, defeated
Shaft；10, guide sleeve；11, gasket；12, spacer pin；13, pin hole；14, through-hole；15, motor；16, pressure bearing；17, axle sleeve；
18, limit hole；19, limited bolt；20, stop collar；21, clutch component.
Specific embodiment
The present invention is specifically described with reference to the accompanying drawing.
A kind of clutch component for crawler type stair climbing wheelchair main wheel gear case, including handle 1, the handle 1, institute
The lower section for stating handle 1 is equipped with plectrum 2, is connected between the handle 1 and one end of plectrum 2 by universal shaft 3, the plectrum 2
The other end is connected with guide pin 4, and the guide pin 4 is fixed on connecting rod 5, and the lower section of the connecting rod 5 is equipped with rocker arm 6, described to shake
It is connected between one end and connecting rod 5 of arm 6 by pivot pin 7, the other end of the rocker arm 6 passes through driving lever 8 and the gear-box 9 to clutch
Connection,
The universal shaft 3 is placed on guide sleeve 10, and gasket 11, the end peace of the gasket 11 are also cased on the universal shaft 3
Equipped with spacer pin.
The head end of the handle 1 and the universal shaft 3 are keyed, and the universal shaft 3 is placed on guide sleeve 10, the guide sleeve 10
It is rotatablely connected with the universal shaft 3, the guide sleeve 10 is equipped with for the prepared screw-bolt hole fixed with wheelchair, on the universal shaft 3
It is also cased with gasket 11, the end of the gasket 11 is equipped with spacer pin 12, and the lower diameter of the spacer pin 12 is less than the limit
The upper diameter of position pin 12, the guide sleeve 10 are equipped with the pin hole 13 for the spacer pin 12, the lower part of the spacer pin 12
Agree with the pin hole 13 and insert embedding, the spacer pin 12 is slidably connected with the gasket 11, the handle 1, universal shaft 3, plectrum 2
Load-bearing pass through guide sleeve 10 and wheelchair be fixedly connected with realization.
The universal shaft 3 is unilateral universal shaft, passes through universal shaft 3 between the universal shaft 3 and one end of the plectrum 2
Candan universal joint connection, the other end of the plectrum 2 are equipped with the through-hole 14 of oblong, and the guide pin 4 runs through institute from bottom to top
Oblong through-hole is stated, the top of the guiding axis 4 is equipped with nut, and the nut is realized to plectrum 2 along 4 axis of guiding axis
Limit to direction, prevents it from holding out guiding axis 4 from upside, and the bottom of the guiding axis 4 and the connecting rod 5 are inserted embedding rear rotation and connected
It connects.
The quantity of the gear-box 9 is two, and two gear-boxes 9 respectively drive two driving wheels of wheelchair, two
The gear-box 9 is distributed in left and right, and driving lever 8, rocker arm 6 are mounted on each gear-box 9, and two driving levers 8 are distinguished
It is connect by the pivot pin 7 with the left and right ends of the connecting rod 5.
The input terminal of the gear-box 9 is connected with motor 15, and the motor 15 passes through in turbine 9a and the gear-box 9
Main wheel 9b engagement connection is inputted, the input main wheel 9b is connect by entering spindle 9c with the body pivot of the gear-box 9, institute
It states to be equipped on entering spindle 9c and inputs accessory whorl 9d, the input accessory whorl 9d engages connection, the output wheel 9f with output wheel 9f
Be keyed with output shaft 9g, the driving lever 8 is in inverted " T " shape structure, the lower part of the driving lever 8 be embedded in the output wheel 9f with
Between the shell of gear-box 9, feather key is connected between the output shaft 9g and the output wheel 9f, is cased on the output shaft 9g multiple
Position spring 9e, the reset spring 9e are pressure spring, and the reset spring 9e and the driving lever 8 divide for positioned at the output wheel 9f's
Two sides.
The pivot pin 7 is connect with 5 bearing of connecting rod, and the bearing connecting for the pivot pin 7 with connecting rod 5 is pressure bearing
16, the bottom end of the pivot pin 7 through the rocker arm 6 and is equipped with bolt cap, and the rocker arm 6 provides the support to the connecting rod 5, institute
Limit of the top of pivot pin 7 by bolt realization to the connecting rod 5 is stated, the pressure bearing 16 guarantees to connecting rod 5 along 7 axis of pivot pin
It can be rotated by axis of the axle center of pivot pin 7 while limit to direction.
The rocker arm 6 is keyed with the driving lever 8, and the lower section of the rocker arm 6 is equipped with axle sleeve 17, the driving lever 8 and institute
It states axle sleeve 17 to be fixedly connected, the outer sheath restraining position ring block 20 of the axle sleeve 17, the stop collar 20 is fixed on the top surface of gear-box 9
On, the axle sleeve 17 is placed on the top surface of the gear-box 9, and the side of the stop collar 20 is equipped with limit hole 18, the limit
Position hole 18 along 20 radial direction of stop collar the arc-shaped structure in section, through having limited bolt 19, institute in the limit hole 18
It states limited bolt 19 to be fixedly connected with axle sleeve 17, the top of the driving lever 8 is equipped with nut, and it is real to clamp the rocker arm 6 in conjunction with axle sleeve 17
It now supports, while the nut is equipped on the top surface of axle sleeve 17, realizes limited support of the axle sleeve 17 along 8 axial direction of driving lever, institute
It states axle sleeve 17 and is equipped on the support realized on gear-box 9 to driving lever 8, rocker arm 6.
Under normality, the main wheel of wheelchair is connect by gear-box with motor drive, realizes the disconnected of the 15 of wheelchair main wheel and motor
Open driving, it is only necessary to rotating spanner 1, specific clutch principle are as follows:
After rotating spanner 1, the universal shaft 3, gasket 11 and the spacer pin 12 being mounted on the gasket 11 can together
Rotation.
It is driven by the universal shaft 3, the plectrum 2 can be made to rotate,
When the through-hole 14 of the oblong structure is that the guide pin 4 of fixed guide rotation connects, plectrum 2 can be increased
Freedom degree guarantees that the plectrum 2 can provide driving for the movement of guide pin 4.
The plectrum 2 drives the connecting rod 5 mobile, provides power for the rotation of rocker arm 6, the rocker arm 6 due to driving lever 8
Connection, can only realize rotation, also just realize the rotation to driving lever 8.
After the driving lever 8 rotates, the T-shaped structure of end resists and pushes output wheel 9f, disconnects itself and input accessory whorl 9d
Engagement, while the output wheel 9f is slided on the output shaft 9g, and the reset spring 9e is compressed.
Elastic force can be saved bit by bit after the reset spring 9e compression, if spanner is unclamped, based on the elastic force of the reset spring 9e, meeting
Restore the engagement between gear, also just restores driving of the motor 15 to main wheel.
After the spacer pin 12 rotates, it can be located at the top of the pin hole 13, if being at this time embedded into spacer pin 12
In pin hole 13, the lasting rotation of handle 1 may be implemented, overcome the elastic force of the reset spring 9e, disconnection is made to be driven into normality,
If wanting to restore driving, it is only necessary to extract the spacer pin 12.
Since drive path is long, the pressure bearing 16 provides certain damping force for transmission in addition, so needing
It to be realized and be resetted using the biggish reset spring 9e of spring ratio.
The limit hole 18 can limit the rotational angle of the driving lever 8, and the rotation for avoiding its excessive causes it
The T-shaped structure of bottom end is overturn, at the same also limit reset spring 9e reset it is accurate, avoid excessively resetting along reversely will output
9f is taken turns to release.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solution of the present invention, those skilled in the art
The principle of the present invention is embodied to some variations that some of them part may be made, belongs to the scope of protection of the present invention it
It is interior.
Claims (7)
1. a kind of clutch component for crawler type stair climbing wheelchair main wheel gear case, including handle (1), which is characterized in that
The lower section of the handle (1) is equipped with plectrum (2), is connect between the handle (1) and one end of plectrum (2) by universal shaft (3),
The other end of the plectrum (2) is connected with guide pin (4), and the guide pin (4) is fixed on connecting rod (5), the connecting rod (5)
Lower section be equipped with rocker arm (6), between one end and connecting rod (5) of the rocker arm (6) pass through pivot pin (7) connect, the rocker arm (6) it is another
One end is connect by driving lever (8) with gear-box (9),
The universal shaft (3) is placed on guide sleeve (10), is also cased with gasket (11) on the universal shaft (3), the gasket (11)
End is equipped with spacer pin.
2. the clutch component according to claim 1 for crawler type stair climbing wheelchair main wheel gear case, feature
It is, the head end of the handle (1) and the universal shaft (3) are keyed, and the universal shaft (3) is placed on guide sleeve (10), described
It is also cased on universal shaft (3) gasket (11), the end of the gasket (11) is equipped with spacer pin (12).
3. the clutch component according to claim 1 for crawler type stair climbing wheelchair main wheel gear case, feature
It is, is connect between the universal shaft (3) and one end of the plectrum (2) by the candan universal joint of universal shaft (3), described group
The other end of piece (2) is equipped with the through-hole (14) of oblong, and the guide pin (4) runs through the oblong through-hole from bottom to top.
4. the clutch component according to claim 1 for crawler type stair climbing wheelchair main wheel gear case, feature
It is, the quantity of the gear-box (9) is two, it is mounted on driving lever (8), rocker arm (6) on each gear-box (9), two
A driving lever (8) is connect by the pivot pin (7) with the left and right ends of the connecting rod (5) respectively.
5. the clutch component according to claim 1 for crawler type stair climbing wheelchair main wheel gear case, feature
It is, the input terminal of the gear-box (9) is connected with motor (15), and the motor (15) passes through turbine (9a) and the gear-box
(9) the input main wheel (9b) in engages connection, and input main wheel (9b) passes through entering spindle (9c) and the gear-box (9)
Body pivot connects, and input accessory whorl (9d), the input accessory whorl (9d) and output wheel are equipped on the entering spindle (9c)
(9f) engagement connection, the output wheel (9f) and output shaft (9g) are keyed, and the driving lever (8) is in inverted " T " shape structure, institute
The lower part for stating driving lever (8) is embedded between the output wheel (9f) and the shell of gear-box (9), the output shaft (9g) with it is described defeated
Feather key connection between (9f) to be taken turns out, is cased with reset spring (9e) on the output shaft (9g), the reset spring (9e) is pressure spring,
The reset spring (9e) and the driving lever (8) are divided into positioned at the two sides of the output wheel (9f).
6. the clutch component according to claim 1 for crawler type stair climbing wheelchair main wheel gear case, feature
It is, the pivot pin (7) connect with the connecting rod (5) bearing, and the bearing connecting for the pivot pin (7) with connecting rod (5) is pressure
The bottom end of power bearing (16), the pivot pin (7) through the rocker arm (6) and is equipped with bolt cap.
7. the clutch component according to claim 1 for crawler type stair climbing wheelchair main wheel gear case, feature
It is, the rocker arm (6) and the driving lever (8) are keyed, and are equipped with axle sleeve (17), the driving lever below the rocker arm (6)
(8) it is fixedly connected with the axle sleeve (17), the outer sheath restraining position ring block (20) of the axle sleeve (17), the stop collar (20) is fixed
In on the top surface of gear-box (9), the axle sleeve (17) is placed on the top surface of the gear-box (9), the stop collar (20)
Side is equipped with limit hole (18), section arc-shaped structure of the limit hole (18) along the stop collar (20) radial direction, institute
It states through having limited bolt (19) in limit hole (18), the limited bolt (19) is fixedly connected with axle sleeve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910235041.1A CN109820660A (en) | 2019-03-27 | 2019-03-27 | Clutch component for crawler type stair climbing wheelchair main wheel gear case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910235041.1A CN109820660A (en) | 2019-03-27 | 2019-03-27 | Clutch component for crawler type stair climbing wheelchair main wheel gear case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109820660A true CN109820660A (en) | 2019-05-31 |
Family
ID=66872489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910235041.1A Pending CN109820660A (en) | 2019-03-27 | 2019-03-27 | Clutch component for crawler type stair climbing wheelchair main wheel gear case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109820660A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW406760U (en) * | 1999-10-30 | 2000-09-21 | Lin Yu Shing | Clutch device of driving mechanism |
| CN201492595U (en) * | 2009-08-20 | 2010-06-02 | 李雨水 | Electric wheelchair capable of climbing stairs |
| CN104154188A (en) * | 2014-08-21 | 2014-11-19 | 柳州上汽汽车变速器有限公司 | Reverse gear synchronizer device of automobile speed changer |
| CN107647982A (en) * | 2017-09-27 | 2018-02-02 | 宁波韵声机芯制造有限公司 | Singlehanded dual control clutch for electric wheelchair |
-
2019
- 2019-03-27 CN CN201910235041.1A patent/CN109820660A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW406760U (en) * | 1999-10-30 | 2000-09-21 | Lin Yu Shing | Clutch device of driving mechanism |
| CN201492595U (en) * | 2009-08-20 | 2010-06-02 | 李雨水 | Electric wheelchair capable of climbing stairs |
| CN104154188A (en) * | 2014-08-21 | 2014-11-19 | 柳州上汽汽车变速器有限公司 | Reverse gear synchronizer device of automobile speed changer |
| CN107647982A (en) * | 2017-09-27 | 2018-02-02 | 宁波韵声机芯制造有限公司 | Singlehanded dual control clutch for electric wheelchair |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190531 |