CN2583293Y

CN2583293Y - Locking device for vehicle door system

Info

Publication number: CN2583293Y
Application number: CN 02258583
Authority: CN
Inventors: 陈超; 曾世文
Original assignee: KANGNI ELECTROMECHANICAL NEW TECHNOLOGY Co Ltd NANJING
Current assignee: KANGNI ELECTROMECHANICAL NEW TECHNOLOGY Co Ltd NANJING
Priority date: 2002-11-20
Filing date: 2002-11-20
Publication date: 2003-10-29
Anticipated expiration: 2012-11-20

Abstract

The utility model relates to a locking device for a vehicle door system, which comprises a dialing disk, a cam, a rolling pole, a supporting block, an outer sleeve, a torsion spring, an end tooth disk, a deflector rod and a supporting seat assembly, wherein, the dialing disk is connected with a motor; the came is connected with a rotating shaft; the dialing disk is sheathed with the cam in an embedding mode; a definite gap is kept between a dialing block of the dialing disk and the side of a groove of the cam; the torsion spring is installed on the supporting block; the dialing disk, the cam, the rolling pole, and the supporting block are all arranged in the outer sleeve; the outer sleeve is engaged with end teeth of the end tooth disk by the end teeth; the outer sleeve, the end tooth disk and the deflector rod are installed on the supporting seat assembly. The utility model has the advantages of compact structure, less part amount, direction connection with the motor and the rotating shaft, no need of any auxiliary power source and any auxiliary control device, contact stress as loads, big bearing capability, torsion transfer, no work for rolling pole, small abrasion and small heat radiation, small size, light weight, high strength and high hardness of the stress parts of a locking device, high reliability, high security, good maintenance performance, long service life and low period cost. A self structure of the utility model can realize the lock of the door system. The self locking ability of the utility model doesn't change following with other conditions.

Description

The locking device that train-door system is used

Technical field

The utility model relates to a kind of locking device that is used on the train-door system, belong to the vehicle technology field.

Background technology

The existing general complex structure of door lock assembly, part is more, and needs use power source in addition, and reliability is not high, a phenomenon of Guan Bushang takes place often, not opening.Do not satisfy supporting with it door system requirement in reliability, practicality, maintainability and safety.

Summary of the invention

The utility model purpose is the defective at above-mentioned existence, proposes the locking device that a kind of train-door system uses, can satisfy the requirement of modern vehicle door system the reliability height, safe, maintainability good, long service life.Technical solution of the present utility model: it comprises dial, cam, roller, bracer, overcoat, torsion spring, end-toothed disc, driving lever and mounting assembly, wherein, dial links to each other with motor, cam links to each other with axis of rotation, dial is nested with cam, the groove side of shifting block on the dial and cam keeps certain interval, torsion spring is installed on the bracer, making bracer remain with roller contacts, dial, cam, roller and bracer all are installed in the overcoat, overcoat can mesh with the end tooth of end-toothed disc by end tooth, and overcoat, end-toothed disc and driving lever are installed on the mounting assembly.Driving lever links to each other with an end of wire rope.Advantage of the present utility model: a whole set of locking device have the reliability height, safe, maintainability good, long service life and the low characteristics of LCC.Wherein: locking device is simple for structure, number of spare parts is few, directly links to each other with axis of rotation with motor, and self structure realizes the locking of door system, need not any additional power source and control device.Because intensity, the hardness of the stressed part of locking device are all very high, load is contact stress, supporting capacity is big, locking device is when transfer torque, roller does not participate in work, and wearing and tearing and heating are all very little, and therefore whole locking device volume is little, in light weight, abrasion resistance is good, the self-lock ability of locking device does not change with other condition, self-locking reliability height.

Description of drawings:

Fig. 1 is a structural representation of the present utility model; Fig. 2 is the sectional view of Fig. 1 along I-I;

Fig. 3 is the driving lever structural representation in the utility model.

Among the figure 1 is dial, the 2nd, and cam, the 3rd, roller, the 4th, bracer, the 5th, overcoat, the 6th, torsion spring, the 7th, end tooth, the 8th, driving lever, the 9th, mounting assembly, the 10th, motor, the 11st, axis of rotation, the 12nd, shifting block, the 13rd, wire rope.

Concrete embodiment:

Contrast Fig. 1 and Fig. 2, when motor 10 counterclockwise rotates with certain angular velocity drive dial 1, gap b between the shifting block 12 of dial 1 and the cam 2 groove sides just reduces gradually in the counterclockwise direction, and the roller 3 (two) and the gap a of overcoat 5 are increased gradually, when shifting block 12 turns over gap b with dial 1, shifting block 12 just with the groove contacts side surfaces of cam 2.Because roller 3 (two) and overcoat 5 existing enough gaps, so dial 1 can drive cam 2 transmissions, and is not subjected to the obstruction of roller, thereby finished the positive drive of 10 pairs of axis of rotation 11 of motor in the counterclockwise direction.When motor 10 drives the rotation of dial 1 clockwise direction with certain angular velocity, gap b between the shifting block 12 of dial 1 and the cam 2 groove sides just reduces gradually in the clockwise direction, and the gap a of roller 3 (two) and overcoat 5 is eliminated gradually, break away from subsequently with dial 1 on the contacting of shifting block 12, and contact with overcoat 5, and form certain clearance with shifting block 12, when shifting block 12 turns over gap b with dial 1, shifting block 12 just with the groove contacts side surfaces of cam 2.Because the radius of gyration that roller 3 (two) contacts with cam 2 is tending towards reducing, be that roller 3 (two) is subjected to the frictional force effect by the stenosis of wedging between cam 2 and overcoat 5, therefore dial 1 can drive cam 2 transmissions, and be not subjected to the obstruction of roller, thereby finished the positive drive of 10 pairs of axis of rotation 11 of motor in the clockwise direction.So motor 10 can rotate along clockwise direction with counterclockwise by locking device driven rotary axle 11, thereby realize the open and close door motion that motor 10 drives.

When having acted on a countertorque M1 on the axis of rotation 11, then cam 2 produces anticlockwise rotation tendency, and cam 2 just contacts with overcoat 5 roller 3 (two) is extrapolated.Owing to produce normal pressure between contact surface, and make roller 3 (two) and overcoat 5 produce elastic deformation, and stop the motion of roller 3 (two), promptly because the wedge action of the frictional force between roller 3 (two) and cam 2 and the overcoat 5, and cam 2, roller 3 and overcoat 5 are combined as a whole.If overcoat 5 and end-toothed disc 7 be by the end tooth engagement, because end-toothed disc 7 fixed by mounting assembly 9, so overcoat 5 is fixed, and makes cam 2 stop operating.At this moment, locking device is in self-locking state, thereby axis of rotation 11 can't drive motor 10 to counterclockwise rotating.When having acted on a countertorque M2 on the axis of rotation 11, then the groove side of cam 2 and the gap b between the shifting block 12 on the dial 1 just reduce gradually in the clockwise direction, and the roller 3 (two) and the gap a of overcoat 5 are increased gradually, when cam 2 turned over gap b, the groove side of cam 2 just contacted with the shifting block 12 of dial 1.Because roller 3 (two) and overcoat 5 existing enough gaps, so cam 2 can drive dial 1 transmission, and be not subjected to the obstruction of roller, and the anti-pass of having finished 11 pairs of motors 10 of axis of rotation in the clockwise direction is moving.

Contrast Fig. 2 and Fig. 3, driving lever 8 links to each other with an end of wire rope 13, the other end of wire rope 13 links to each other with emergency unlocking device, in case of emergency, the operation emergency unlocking device, wire rope 13 is pulled, make driving lever 8 move left, end-toothed disc 7 also is moved to the left certain distance, the end-toothed disc 7 of engagement so originally breaks away from engagement with overcoat 5, overcoat 5 is unfixing, at this moment opens Door by Hand, and has promptly acted on a countertorque M1 on axis of rotation 11, cam 2 produces anticlockwise rotation tendency, because overcoat 5 is unfixing,, realize that axis of rotation 11 drives motor 10 and rotates in mounting assembly 9 because cam 2 rollers 3 that the wedge action of frictional force is combined as a whole and overcoat 5 can rotate together.

To sum up, the rotation of axis of rotation 11 clockwise directions is set to door system and closes the door, and axis of rotation 11 rotation counterclockwise is set to door system and opens the door, and driving lever 8 links to each other with emergency unlocking device by wire rope 13, and so a whole set of locking device has following function:

A) under normal condition, has the transmission device automatic opening and closing door function of driven by motor door system;

B) under electroless state, have the function of manually closing the door, and door system door system in the process of closing the door has omnidistance locking ability;

C) in case of emergency, the operation emergency unlocking device can be realized opening Door by Hand.

Different requirements according to various door systems, this locking device can have different structural shapes, the shape of cam working face particularly, its work plane shape comprises arc surface type (cam face shown in Figure 2), plane, log spiral type and their variation pattern.Need to prove the locking device of the cam composition of above-mentioned different operating face shape, their operating principle all is the same, and just there is difference in the distribution situation of gap a.For example, arc surface type cam, gap a are distributed between roller 3 and the overcoat 5, and plane cam, gap a are distributed between roller 3 and the cam 2, and log spiral type cam, gap a are distributed between the shifting block 12 of roller 3 and dial 1.

" axis of rotation " mentioned in the utility model comprises screw mandrel, drives driving wheel and other device by the motion of rotation realization door system of cog belt, belt and chain movement.The main power source that links to each other with the dial of locking device can be that the hydraulic pressure that rotatablely moves and pneumatic can be provided except that motor.

Claims

1, the locking device that train-door system is used, it comprises dial (1), cam (2), roller (3), bracer (4), overcoat (5), torsion spring (6), end-toothed disc (7), driving lever (8) and mounting assembly (9), wherein, dial (1) links to each other with motor (10), cam (2) links to each other with axis of rotation (11), dial (1) is nested with cam (2), shifting block (12) on the dial (1) keeps certain interval with the groove side of cam (2), torsion spring (6) is installed on the bracer (4), making bracer (4) remain with roller (3) contacts, dial (1), cam (2), roller (3) and bracer (4) all are installed in the overcoat (5), overcoat (5) can mesh overcoat (5) with the end tooth of end-toothed disc (7) by end tooth, end-toothed disc (7) and driving lever (8) are installed on the mounting assembly (9).

2, the locking device used of train-door system according to claim 1 is characterized in that driving lever (8) links to each other with an end of wire rope (13).

3, the locking device used of train-door system according to claim 1, the shape that it is characterized in that cam working face has arc surface type or plane or log spiral type or anomaly, wherein arc surface type cam clearance a is distributed between roller (3) and the overcoat (5), plane cam clearance a is distributed between roller (3) and the cam (2), and log spiral type cam clearance a is distributed between the shifting block (12) of roller (3) and dial (1).