CN206391106U

CN206391106U - A kind of wheelchair vehicle clutch

Info

Publication number: CN206391106U
Application number: CN201620146869.1U
Authority: CN
Inventors: 陈建国
Original assignee: Ji Rui Medical Apparatus And Instruments (shanghai) Co Ltd
Current assignee: Ji Rui Medical Apparatus And Instruments (shanghai) Co Ltd
Priority date: 2016-02-26
Filing date: 2016-02-26
Publication date: 2017-08-11
Anticipated expiration: 2026-02-26

Abstract

The utility model discloses a kind of wheelchair vehicle clutch, including fixed disk, it includes centre bore, and there are multiple grooves its side along the centre bore is circumferentially distributed；Rolling bearing, it is engaged with the fixed disk, is arranged in the centre bore；Take turns shaft core, it includes central through hole, and along the central through hole it is circumferentially distributed have be engaged with the multiple groove and quantity identical neck, the wheel shaft core is resisted against the side of the fixed disk；Clutch block, it is arranged on the side of the fixed disk, and the clutch block include with the multiple pocket numbers identical latch, the latch is engaged with the groove, the neck, so that the latch is adapted to enter into the groove and the neck；Stage clip and tabletting, the stage clip are arranged between the clutch block and the tabletting；Fixing bolt, the fixing bolt sequentially passes through the tabletting, the stage clip, the clutch block, is threadedly coupled for the motor shaft with being installed on the rolling bearing and the wheel shaft in-core.

Description

A kind of wheelchair vehicle clutch

Technical field

The utility model is related to electric wheel-chair vehicle, more particularly to a kind of wheelchair vehicle clutch.

Background technology

Electric wheel-chair vehicle is on the basis of traditional manual wheel-chair, to add the parts such as motor, battery, make wheel-chair Operation has broken away from the artificial power that provides of needs with driving moment, so as to further increase the convenience and Consumer's Experience used. But in actual use, some occasions are with the case of, and manual actuation wheel-chair is still more particularly suitable, such as battery electric power is not enough, Climb and fall etc., therefore electric wheel-chair vehicle in the market is designed as manually and electric dual-purpose mostly, user can be Switched between manual and electronic, what this was mainly realized by the clutch being arranged on nave boss, its function is that wheel hub exists It is fixedly connected on machine shaft and is connected to switching between machine shaft freely to rotate.

Patent No. CN201520111620.2 Chinese patent discloses a kind of wheelchair vehicle clutch, including fixation It is provided with to be provided with projection, fixed disk and wheel shaft core on disk, wheel shaft core, clutch block and compression spring component, clutch block and coordinates with it Groove, it is wheel shaft core and wheelchair vehicle motor by the way that fixed disk is fixed on wheel-chair wheel hub that it, which is used on electric wheel-chair vehicle, Axle is connected and pass through hub centre hole, so as to lock locking/unlocking fixed disk (wheel hub) and wheel shaft core (motor by clutch block Axle) connection.

In the electric wheel-chair vehicle using above-mentioned clutch, wheel shaft core is installed on motor shaft, is driven and rotated by motor shaft, During simultaneous wheels mandrel installs fixed disk from fixed disk side, both positions are carried out by jump ring in the opposite side of fixed disk and limited Fixed, above-mentioned fixed structure is influenceed by the accuracy of manufacture, assembly precision or using factors such as abrasions, easily causes wheel There is exception in the cooperation of mandrel and motor shaft, and such as axiality is undesirable, fit clearance is excessive, directly influences for wheel Driving, produce vehicle and jolt or vibrate etc. problems.

Utility model content

In view of the drawbacks described above of prior art, technical problem to be solved in the utility model is to provide a kind of improved Wheelchair vehicle clutch, including：

Fixed disk, the fixed disk includes centre bore, and the side of the fixed disk is circumferentially distributed along the centre bore There are multiple grooves；

Rolling bearing, the rolling bearing is engaged with the fixed disk, is arranged in the centre bore；

Take turns shaft core, the wheel shaft core include central through hole, and along the central through hole it is circumferentially distributed have with it is the multiple Groove is engaged and quantity identical neck, and the wheel shaft core is resisted against the side that the fixed disk is provided with the multiple groove；

Clutch block, the clutch block is arranged on the side that the fixed disk is provided with the multiple groove, and the clutch Block include with the multiple pocket numbers identical latch, the latch is engaged with the groove, the neck, so that described Latch is adapted to enter into the groove and the neck；

Compression spring component, the compression spring component includes stage clip and tabletting, and the stage clip is arranged on the clutch block and the pressure Between piece；

Fixing bolt, the fixing bolt sequentially passes through the tabletting, the stage clip, the clutch block, for installing It is threadedly coupled in the motor shaft of the rolling bearing and the wheel shaft in-core.

Further, the quantity of the rolling bearing is two, and two roller bearing shops are provided with bushing, the bushing two End bears against the inner ring of described two rolling bearings.

Further, in addition to key, the keyway being engaged with the key is provided with the central through hole, so as to pass through institute Key, keyway realization is stated to be connected with the key of motor shaft.

Further, in addition to packing ring, the packing ring is resisted against the one end of the key away from the fixed disk.

Further, in addition to clutch block grip, the clutch grip is connected to the clutch block, so as to effortlessly Operate the activity of clutch block.

Further, the quantity of the groove is 3 or 4.

Wheelchair vehicle clutch of the present utility model can effectively improve assembly precision than prior art, and reduction makes With abrasion, make the cooperation of wheel mandrel and motor shaft more preferable, solve that the axiality in the presence of existing structure is undesirable, match somebody with somebody Close the shortcomings of gap is excessive, it is to avoid resulting vehicle jolts or vibrated etc. problems.

The technique effect of design of the present utility model, concrete structure and generation is made furtherly below with reference to accompanying drawing It is bright, to be fully understood from the purpose of this utility model, feature and effect.

Brief description of the drawings

Fig. 1 is the structural representation of a preferred embodiment of wheel-chair clutch of the present utility model；

Fig. 2 be in Fig. 1 wheel-chair clutch along A-A to sectional view；

Fig. 3 is the element exploded view of wheel-chair clutch in Fig. 1.

Embodiment

In the description of embodiment of the present utility model, it is to be understood that term " on ", " under ", "front", "rear", The orientation or position of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " clockwise ", " counterclockwise " It is, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and simplify description to put relation, rather than Indicate or imply that the device or element of meaning there must be specific orientation, with specific azimuth configuration and operation, therefore can not It is interpreted as to limitation of the present utility model.

As shown in Figure 1-Figure 3, the wheelchair vehicle clutch of a kind of preferred embodiment of the present utility model, including fixed disk 1, Rolling bearing 21, rolling bearing 22, bushing 3, wheel shaft core 4, clutch block 5, stage clip 6, tabletting 7, fixing bolt 8, packing ring 9, key 10 With clutch block grip 11.

Fixed disk 1 includes centre bore 13, and there are 4 grooves 12 side of fixed disk 1 along centre bore 13 is circumferentially distributed.

Rolling bearing 21 is identical with the specification of rolling bearing 22, and is engaged with fixed disk 1, in centrally disposed hole 13；Rolling It is provided with bushing 3 between dynamic bearing 21 and rolling bearing 22, the two ends of bushing 3 bear against rolling bearing 21 and rolling bearing 22 Inner ring.

Taking turns shaft core 4 includes central through hole 41, and has 4 necks being engaged with groove 12 along central through hole 41 is circumferentially distributed 42, wheel shaft core 4 is resisted against the side that fixed disk 1 sets groove 12；Wheel shaft core 4 can be rotated relative to fixed disk 1, so that the He of groove 12 Neck 42 can be mutually aligned or stagger alignment.

Clutch block 5 is arranged on the side that fixed disk 1 is provided with groove 12, and clutch block 5 includes 4 latches 51, latch 51 It is engaged with groove 12, neck 42, when groove 12 and neck 42 are mutually aligned, latch 51 can be embedded into groove 12 and neck 42, So as to lock the connection of locking/unlocking fixed disk 1 (connection wheel hub) and wheel shaft core 4 (being connected motor shaft) by clutch block.

Keyway 43 is additionally provided with the central through hole 41 for taking turns shaft core 4, and is connected by the realization of key 10 with the key of motor shaft, Packing ring 9 is resisted against the one end of key 10 away from fixed disk 1.

Stage clip 6 is arranged between clutch block 5 and tabletting 7；Fixing bolt 8 sequentially passes through tabletting 7, stage clip 6, clutch block 5, uses It is threadedly coupled in the motor shaft with being installed in rolling bearing 21,22 and wheel shaft core 4；When fixing bolt 8 has been connected with motor shaft Cheng Hou, stage clip 6 is compressed between tabletting 7 and clutch block 5, under spring force, and clutch block 5 is pushed to the side of fixed disk 1 To.

So as to which when latch 51 enters groove 12 and neck 42 simultaneously, under the spring-force driven dual of stage clip 6, latch 51 is kept In groove 12 and neck 42, realize to fixed disk 1 (connection wheel hub) and the lock for taking turns shaft core 4 (being connected motor shaft) relative position It is fixed.

Meanwhile, take turns the end face of shaft core 4 and fixed disk 1 close to the side of clutch block 5, it is impossible to be arranged on same plane, but it is preceding The end face of person compared with the latter end face closer to clutch block 5.In this way, (overcoming spring when latch 51 departs from from groove 12 and neck 42 Power pulls out clutch block 5 away from fixed disk 1), rotate and discharge clutch block 5, its (specifically latch 51) is pressed in above-mentioned wheel On the end face of shaft core 4, come in contact without the end face with fixed disk 1, now the position of clutch block 5 do not influence fixed disk 1 around Motor shaft is rotated, i.e., wheel-chair can manual actuation.

Clutch grip 11 is connected in clutch block 5, so as to effortlessly pull out and/or rotate clutch block 5.

In the present embodiment, the quantity of groove 12, neck 42 and latch 51 is 4, another preferred scheme be by groove 12, The quantity of neck 42 and latch 51 is disposed as 3.

The wheelchair vehicle clutch of the present embodiment can effectively improve assembly precision than prior art, and reduction is used Abrasion, makes the cooperation of wheel mandrel and motor shaft more preferable, solves that the axiality in the presence of existing structure is undesirable, coordinate The shortcomings of gap is excessive, it is to avoid resulting vehicle jolts or vibrated etc. problems.

Preferred embodiment of the present utility model described in detail above.It should be appreciated that the ordinary skill people of this area Member just can make many modifications and variations without creative work according to design of the present utility model.Therefore, all this technology necks Technical staff passes through logic analysis, reasoning or limited on the basis of existing technology according to design of the present utility model in domain Available technical scheme is tested, all should be in the protection domain being defined in the patent claims.

Claims

1. a kind of wheelchair vehicle clutch, it is characterised in that including

Fixed disk, the fixed disk includes centre bore, and the side of the fixed disk has many along the centre bore is circumferentially distributed Individual groove；

Shaft core is taken turns, the wheel shaft core includes central through hole, and has and the multiple groove phase along the central through hole is circumferentially distributed Coordinate and quantity identical neck, the wheel shaft core is resisted against the side that the fixed disk is provided with the multiple groove；

Clutch block, the clutch block is arranged on the side that the fixed disk is provided with the multiple groove, and the clutch block bag Include with the multiple pocket numbers identical latch, the latch is engaged with the groove, the neck, so that the latch It is adapted to enter into the groove and the neck；

Compression spring component, the compression spring component includes stage clip and tabletting, the stage clip be arranged on the clutch block and the tabletting it Between；

Fixing bolt, the fixing bolt sequentially passes through the tabletting, the stage clip, the clutch block, for being installed on institute State the motor shaft threaded connection of rolling bearing and the wheel shaft in-core.

2. wheelchair vehicle clutch as claimed in claim 1, it is characterised in that the quantity of the rolling bearing is two, two Individual roller bearing shop is provided with bushing, and the bushing two ends bear against the inner ring of described two rolling bearings.

3. set in wheelchair vehicle clutch as claimed in claim 1, it is characterised in that also including key, the central through hole There is the keyway being engaged with the key, so as to realize and be connected with the key of motor shaft by the key, the keyway.

4. wheelchair vehicle clutch as claimed in claim 3, it is characterised in that also including packing ring, the packing ring is resisted against institute State the one end of key away from the fixed disk.

5. wheelchair vehicle clutch as claimed in claim 1, it is characterised in that also including clutch block grip, the clutch Grip is connected to the clutch block, so as to effortlessly operate the activity of clutch block.

6. wheelchair vehicle clutch as claimed in claim 1, it is characterised in that the quantity of the groove is 3 or 4.