CN2680569Y

CN2680569Y - Torsion spring booster

Info

Publication number: CN2680569Y
Application number: CNU200420024340XU
Authority: CN
Inventors: 赵永军
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-14
Filing date: 2004-01-14
Publication date: 2005-02-23
Anticipated expiration: 2014-01-14

Abstract

The utility model discloses a torsion spring booster which is characterized in that the torsion spring booster comprises a box body [1] or a bracket, a torsion spring energy storage equipment, a ratchet mechanism, an electric motor [6] and a decelerator [7], an output controller; the torsion spring energy storage equipment is composed of some units of torsion spring mechanisms are engaged and connected in series through the end gear in space; the ratchet mechanism is installed on the input terminal of the torsion spring energy storage equipment; the electric motor [6] is connected to the ratchet mechanism by the decelerator [7]; the output controller is a reel brake apparatus which is installed on the output terminal of the torsion spring energy storage equipment. Compared with the prior art, the utility model has simple structure, low cost, long lifetime, and is easy to use; the utility model doesn't has the environmental contamination problem which is brought by the maneuverable booster, and is a new type torsion spring energy storage booster which is used by light-duty type non-mechanized vehicles.

Description

The torsion spring servo-unit

Technical field

The utility model relates to a kind of work-saving device that is applicable to light non-power-driven vehicles such as bicycle, three-wheel vehicle, battery-driven car, perambulator, hand barrow, is specifically related to a kind of servo-unit that adopts the torsion spring composite construction to become.

Background technology

Light non-power-driven vehicles such as bicycle, three-wheel vehicle, battery-driven car, perambulator, hand barrow generally use in people's daily life, for auxiliary user rides, reach light labour-saving purpose, often adopt work-saving device, promptly on common non-power-driven vehicle, increase a servo-unit, help people to ride in the mode that power is provided.In the prior art, servo-unit mainly contains electronic and motor-driven two kinds, and Electric booster is made up of electrical motor and storage battery, adopts this mode exactly such as in the market Electrical Bicycle; The powdered assisting device is made of put-put, adopts this mode exactly such as the present mini-motorcycle of travels down.Although more than two kinds of servo-units be applied in practice, and brought into play good effect, but these servo-units are often owing to the cost reason, make that the price of car load is higher, the low layer consumer group often is difficult to bear, battery life is limited for Electric booster in addition, uses generally that effect descends greatly after 1 year; For the powdered assisting device, also exist problem of environmental pollution.

The purpose of this utility model provides a kind of novel torsion spring work-saving device that is applicable to that the hand-held design unpowered vehicle uses, and with simplified structure, cost-cutting, increase the service life, improves the market competitiveness of assistance type unpowered vehicle.

Summary of the invention

For achieving the above object, the technical solution adopted in the utility model is: a kind of torsion spring servo-unit comprises:

One casing or support, this casing or support are as supporting mass;

One torsion spring energy storage equipment, constitute by some unit torsion spring mechanisms in series, wherein, each unit torsion spring mechanism comprises a torsion spring, a fix shaft and two end tooth wheels, and the fix shaft two supports is on casing or support, torsion spring set is on fix shaft, two end teeth wheel is located at the two ends of fix shaft respectively and captives joint with the two ends of torsion spring, and each fix shaft be arranged in parallel in the space of casing or support, the end tooth wheel engagement of the end tooth wheel of its upper class end and next stage head end;

One ratchet device, this ratchet device is located at the input end of torsion spring energy storage equipment;

One electrical motor and retarder, this electrical motor is connected with ratchet device through retarder, and the hand of rotation of electrical motor turns to consistent with ratchet device;

One o controller, this o controller are a dish brake apparatus, and this device is located at the mouth of torsion spring energy storage equipment.

Related content and change interpretation are as follows in the technique scheme:

1, in the such scheme,, a velocity limiter can be set, control the output speed of torsion spring servo-unit by this velocity limiter at the mouth of torsion spring energy storage equipment in order to limit the rotating speed of torsion spring servo-unit output.Described velocity limiter comprises speed limit dish and friction disc, speed limit dish and friction disc coaxial setting arranged side by side, wherein, friction disc is fixed, and the speed limit dish rotates, and the speed limit dish is provided with centrifugal spheroid and voussoir, centrifugal spheroid and voussoir are located at the two ends of a lever respectively, the fulcrum of lever is on the speed limit dish, and lever is positioned at centrifugal spheroid one end and is connected on the speed limit dish by spring, and voussoir is arranged in the wedge shape space of speed limit dish and friction disc formation.

2, in the such scheme, can realize artificial accumulation of energy, can be provided with a turning handle at the input end of torsion spring energy storage equipment in order to make this torsion spring servo-unit, when around when not having power supply, can carry out accumulation of energy to the torsion spring energy storage equipment by turning handle.

3, in the such scheme, consider that each fix shaft is after space parallel is provided with, the end tooth wheel at two ends is in forming the series connection engagement, the end tooth of end of engagement wheel since the external diameter cause occur disturbing, therefore can be in the torsion spring energy storage equipment end tooth wheel of end tooth wheel and next stage head end of unit torsion spring mechanism upper class end by free gear engagement in the middle of.Here it should be noted that: if free gear in the middle of not establishing supposes that the upper class torsion spring is that positive dirction is reversed, then the next stage torsion spring is that reversing sense reverses; If behind the free gear, the torsional direction of a last utmost point torsion spring is consistent with next stage in the middle of being provided with, promptly go up one very positive dirction reverse, next utmost point also reverses for positive dirction, vice versa.

The utility model is compared with prior art simple in structure, and is easy to use, and cost is low, and the life-span is long, and also the problem of environmental pollution that does not exist the powdered assisting device to bring is the novel servo-unit that a kind of hand-held design unpowered vehicle uses, and is suitable for the low income consumer group.

Description of drawings

Accompanying drawing 1 is the utility model structural representation;

Accompanying drawing 2 is the utility model mouth embodiment enlarged drawing;

Accompanying drawing 3 is the utility model input end ratchet device schematic diagram;

Accompanying drawing 4 is the utility model velocity limiter scheme drawing;

Accompanying drawing 5 is a speed limit dish constructional drawing in the utility model velocity limiter.

In the above accompanying drawing: 1, casing; 2, torsion spring; 3, fix shaft; 4, end tooth wheel; 5, end tooth wheel; 6, electrical motor; 7, retarder; 8, speed limit dish; 9, friction disc; 10, centrifugal spheroid; 11, voussoir; 12, lever; 13, spring; 14, adapter plate; 15, turning handle; 16, ratchet; 17, ratchet; 18, the dish of stopping; 19, drg; 20, bevel gear; 21, output shaft; 22, gear; 23, axis body.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment: shown in accompanying drawing 1, a kind of torsion spring servo-unit is made up of casing 1, torsion spring energy storage equipment, ratchet device, velocity limiter, o controller, electrical motor 6 and retarder 7.

Casing 1 is as supporting mass and housing, in establish spatial accommodation.

The torsion spring energy storage equipment constitutes (also can be other quantity) by six unit torsion spring mechanisms in series, wherein, each unit torsion spring mechanism comprises a torsion spring 2, a fix shaft 3 and two end tooth wheels 4,5, fix shaft 3 two supports are on the sidewall at casing 1 two ends, torsion spring 2 is enclosed within on the fix shaft 3, two end teeth wheel 4,5 is located at the two ends of fix shaft 3 respectively and captives joint with the two ends of torsion spring 2, each fix shaft 3 be arranged in parallel in the space of casing 1, and the end tooth wheel 4 of its upper class end meshes with the end tooth wheel 5 of next stage head end.

In order to prevent that the torsion spring energy storage equipment from turning round after accumulation of energy, input end at the torsion spring energy storage equipment is provided with ratchet device specially, see shown in Figure 3, this ratchet device is by ratchet 16 and ratchet 17, make input end rotate accumulation of energy towards a direction, the effect owing to ratchet device after accumulation of energy stops can not to be turned round.

Referring to shown in Figure 1, electrical motor 6 as electronic energy storage equipment be positioned at torsion spring accumulation of energy chain foremost and be located at casing 1, electrical motor 6 is connected with ratchet device (not drawing among the figure) through retarder 7, and the hand of rotation of electrical motor 6 turns to consistent with ratchet device.In order to realize artificial accumulation of energy, also be provided with a turning handle 15 at the input end of torsion spring energy storage equipment, when around when not having power supply, can carry out accumulation of energy by 15 pairs of torsion spring energy storage equipments of this turning handle.

O controller is located at the mouth of torsion spring energy storage equipment as the output control switch of torsion spring servo-unit, sees shown in Figure 2ly, and this o controller is a dish brake apparatus, constitute by stop dish 18 and drg 19, and be closed condition when drg 19 compresses the dish of stopping 18 the time; After loosening, drg 19 is opening.

Velocity limiter is located at torsion spring energy storage equipment output as the output speed-limit device, see Fig. 2, Fig. 4 and shown in Figure 5, this velocity limiter comprises speed limit dish 8, friction disc 9 and adapter plate 14, adapter plate 14 and casing 1 supporting axis body 23, speed limit dish 8 and friction disc 9 coaxial settings arranged side by side, wherein, friction disc 9 is fixing, speed limit dish 8 rotates, speed limit dish 8 is provided with centrifugal spheroid 10 and voussoir 11, and centrifugal spheroid 10 and voussoir 11 are located at the two ends of a lever 12 respectively, and the fulcrum of lever 12 is on speed limit dish 8, lever 12 is positioned at centrifugal spheroid 10 1 ends and is connected on the speed limit dish 8 by spring 13, and voussoir 11 is arranged in the wedge shape space of speed limit dish 8 and friction disc 9 formation.

Present embodiment is by a pair of bevel gear 20 and output shaft 21 outputs.The end tooth of unit torsion spring mechanism upper class end wheel 4 can be by a middle free gear engagement (not drawing among the figure) with the end tooth wheel 5 of next stage head end in the torsion spring energy storage equipment.

Present embodiment principle of work: during accumulation of energy, o controller is transformed into closed condition, electrical motor 6 is connected with the mains, actuating motor 6, this moment, electrical motor 6 reversed accumulation of energy through retarder 7, ratchet device drive first order unit torsion spring mechanism, first order unit torsion spring mechanism transmits by end tooth wheel 5 and partial end tooth wheel 4 engagements, by that analogy.Turning handle 15 can be used as standby when not having power supply around, and the torsion spring energy storage equipment is carried out accumulation of energy.During use, control the output of torsion spring servo-unit by drg 19, when release the brake 19, output shaft 21 rotates; When compressing dish output shaft 21 stalls 18 time of stopping.Velocity limiter is the speed-limit device of output, speed limit dish 8 with axis body 23 rotation processes in, after rotating speed reaches certain speed, centrifugal spheroid 10 is because action of centrifugal force is outwards opened, and lever 12 forces voussoir 11 inwardly to push, and rub with friction disc 9, output speed is fast more, and this friction force is big more, and rotating speed is descended; After rotating speed drops to certain speed, lever 12 is extracted voussoir 11 from wedge shape space under the effect of spring 13, this moment, voussoir 11 reduced with the friction force of friction disc 9, such exercising result rotating speed of output shaft 21 the most at last limits within the specific limits, therefore can control output speed by the pulling force of adjusting spring 13.

The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.

Claims

1, a kind of torsion spring servo-unit is characterized in that comprising:

One casing [1] or support, this casing [1] or support are as supporting mass;

One torsion spring energy storage equipment, constitute by some unit torsion spring mechanisms in series, wherein, each unit torsion spring mechanism comprises a torsion spring [2], a fix shaft [3] and two end tooth wheels [4,5], fix shaft [3] two supports is on casing [1] or support, torsion spring [2] is enclosed within on the fix shaft [3], two end tooth wheels [4,5] are located at the two ends of fix shaft [3] respectively and captive joint with the two ends of torsion spring [2], each fix shaft [3] be arranged in parallel in the space of casing [1] or support, and the end tooth wheel [4] of its upper class end meshes with the end tooth wheel [5] of next stage head end;

One electrical motor [6] and retarder [7], this electrical motor [6] is connected with ratchet device through retarder [7], and the hand of rotation of electrical motor [6] turns to consistent with ratchet device;

2, torsion spring servo-unit according to claim 1, it is characterized in that: the mouth of described torsion spring energy storage equipment also is provided with a velocity limiter, this velocity limiter comprises speed limit dish [8] and friction disc [9], speed limit dish [8] and friction disc [9] coaxial setting arranged side by side, wherein, friction disc [9] is fixing, speed limit dish [8] rotates, speed limit dish [8] is provided with centrifugal spheroid [10] and voussoir [11], centrifugal spheroid [10] and voussoir [11] are located at the two ends of a lever [12] respectively, the fulcrum of lever [12] is on speed limit dish [8], lever [12] is positioned at centrifugal spheroid [10] one ends and is connected on the speed limit dish [8] by spring [13], and voussoir [11] is arranged in the wedge shape space of speed limit dish [8] and friction disc [9] formation.

3, torsion spring servo-unit according to claim 1 is characterized in that: the input end of described torsion spring energy storage equipment also is provided with a turning handle [15].

4, torsion spring servo-unit according to claim 1 is characterized in that: the end tooth of unit torsion spring mechanism upper class end wheel [4] passes through a middle free gear engagement with the end tooth wheel [5] of next stage head end in the described torsion spring energy storage equipment.