CN1032699A

CN1032699A - Stepless self-varying diameter chain type transmission device

Info

Publication number: CN1032699A
Application number: CN 87107064
Authority: CN
Inventors: 钟迎炎
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-10-23
Filing date: 1987-10-23
Publication date: 1989-05-03

Abstract

The invention provides a kind of stepless self-varying diameter chain type transmission device that can be used for various transmission device.Be characterized in that this device is to reach stepless automatic adjustment velocity ratio according to the diameter that the moment of power and load is adjusted sprocket wheel at the volley automatically, simple in structure, easy to use, be easy to make.

Use this device can obtain high pulling torque, big speed ratio, and speed change, mild, stable.Can multistagely be combined into active and passive sprocket wheel, velocity ratio is Mn.Especially can realize need not hand control.

This device with not reducing transmission of fastest ratio, uses particularly suitable on vehicle when reversing.

Description

Stepless self-varying diameter chain type transmission device

The present invention relates to a kind of chain-driven unit, particularly a kind of can stepless self-varying diameter chain type transmission device.Do not see as yet both at home and abroad at present this device is arranged.Velocity ratio was M when the present invention can multistagely be combined into active and passive sprocket wheel ⁿ, M is a progression for multiplying power n.

The purpose of this invention is to provide a kind of stepless self-varying diameter chain type transmission device, it can make the manned variable speed drive of level change into unartificial manipulation and realize stepless automatic speed regulation according to the diameter of power and the stepless at the volley automatic adjustment sprocket wheel of load moment.With not reducing transmission of fastest ratio, use particularly suitable on vehicle during the reversing of this device.

The objective of the invention is to finish as follows: sprocket wheel by the promotion dish that has six curvilinear grooves with have six radially tooth bar movably the driven disc that forms of small gear form.The small gear that power is passed in the groove by the tortuous wire casing of promotion is passed to the chain drive load rotation that hangs on the small gear again.Small gear simultaneously moves one side and rotates, and the difference of power and the moment of loading changes the purpose that distance between small gear promptly reaches stepless self-varying diameter automatically.Be connected control from reducing moment by spring between driving disc and the driven disc.Describe in further detail below with reference to accompanying drawing.

Fig. 1 is a kind of concrete structure figure of the present invention.

With reference to Fig. 1, six sprocket wheel (1) (2) (3) (4) (5) (6) with stepless self-varying diameter chain type transmission device of good mechanical properties are to be movably arranged on to have six radial detents (8) (9) (10) (11) (12) (13) and four radially on the positioning disk (7) of tooth bar (14) (15) (16) (17), curvilinear groove (19) (20) (21) (22) (23) (24) on two curve disc (18) is loaded on sprocket wheel (1) (2) (3) (4) (5) (6) axle two ends, spring (25) is installed in positioning disk spring groove (26) and two the curve disc spring grooves (27), positioning disk (7) and coaxial being slidingly installed of two curve disc (18).Power rotates two curve disc (18), promptly six curvilinear grooves (19) (20) (21) (22) (23) (24) six sprocket shaft two ends rotational powers promoting to have chain (28) with load between equilibrium of forces the time sprocket wheel velocity ratio that do not roll constant, power during greater than load forces six curvilinear grooves promote six sprocket wheels and outwards move, radially tooth bar (14) (15) (16) (17) rolls sprocket wheel (1) (2) (4) (5), the distance that has increased between the sprocket wheel has promptly increased velocity ratio, otherwise velocity ratio reduces.Spring (25) can be adjusted from reducing moment and keep return.Rotate with fastest ratio during reversing.

Claims

1, one by sprocket wheel [1] [2] [3] [4] [5] [6] positioning disk [7] and locating slot [8] [9] [10] [11] [12] [13] radially the stepless self-varying diameter chain type transmission device formed of tooth bar [14] [15] [16] [17] curve disc [18] and laying-out curve groove [19] [20] [21] [22] [23] [24] spring [25] positioning disk spring groove [26] curve disc spring groove [27] it is characterized in that:

A, positioning disk [7] have six identical radial detents [8] [9] [10] [11] [12] [13] and divide equally with 60 ° of intervals.

B, towards drawing outside the mind-set of garden, respectively there is a tooth bar [14] [15] radially in locating slot [8] [9] left side, respectively there is a tooth bar [16] [17] on locating slot [11] [12] right side.

C, sprocket wheel [1] [2] [3] [4] [5] [6] are sub-packed in the locating slot [8] [9] [10] [11] [12] [13], and with the engagement of tooth bar [14] [15] [16] [17] radially.

2,, it is characterized in that curvilinear groove (19) (20) (21) (22) (23) (24) that curve disc (18) has six identical reverse rotational directions of dividing equally with 60 ° of intervals gradually to open is sub-packed in sprocket wheel (1) (2) (3) (4) (5) (6) axle two ends and forms same one according to the stepless self-varying diameter chain type transmission device of claim 1 regulation.

3, the stepless self-varying diameter chain type transmission device according to claim 1,2 regulations is characterized in that positioning disk spring groove (26) and curve disc spring groove (27) rely on spring (25) to be connected.And positioning disk (7) is coaxial being slidingly connected with curve disc (8).