CN2388404Y - Clutch - Google Patents

Abstract

The utility model relates to a clutch, composed of a bottom cover (1), a casing (2), a bearing (3) for a driving shaft, a pushing spring (4), an inner pressing plate (5), an inner friction disc (6), a middle pressing plate (7), an outer friction disc (8), a cover plate (9), an inner and an outer spline sleeves (10), and a clutching claw (11). The bottom cover, the casing, the bearing for a driving shaft, the pushing spring, the two pressing plates, the two friction disks and the cover plate are basically the same as corresponding components of a traditional clutch. The utility model is characterized in that the pushing spring which is arranged between the inner bottom and the inner pressing plate can orderly support and press the two pressing plates and the two friction discs to be tightly combined with the cover plate; the clutching claw can support and push the inner and the outer spline sleeves in the centre holes of the inner and the outer friction discs and the middle pressing plate, and then the inner pressing plate can be pushed away, so that the separation can be realized. The clutch has the advantages of simple structure, easy manufacture and maintenance, difficult damage, high sensitivity and easy operation.

Description

A kind of clutch

The utility model relates to clutch, and is especially relevant with the clutch of mini tractor.

Clutch cover plate end is being leaned in the top pressure spring of traditional clutch and top pressing board design, many screw rods that connect top pressing board so must pull back when wanting cut-off clutch, its each screw rod is finished by baroque lever pawl handle assembly again and is pulled back, and this structure one is that component are many, cost is high, assembling is complicated; The 2nd, all lever pawls are necessary consistent when pulling back screw rod, otherwise top pressing board will be pulled back into an inclined-plane, can not realize effective separation to friction plate, and the unanimity that will guarantee to adjust the screw rod of pulling back is very difficult, so its clutch sensitivity is not high, can only remedy with strengthening the clutch stroke, but the problem that effectively to separate also still can occur.

The purpose of this utility model is to disclose a kind of clutch to the public, and it is not only simple in structure, is convenient to make with debugging, reduces production costs, and also has very high clutch sensitivity simultaneously, guarantees that the insurance of operation is effective.

The utility model is made up of bottom, housing, transmission shaft bearing, goring push spring, inner clip plate, interior friction plate, center platen, outside friction disc, cover plate, interior outer flower-key cover and clutch pawl.Center, the end is equipped with transmission shaft bearing and is sealed in its housing bottom, and all sides in the interior end have the equally distributed location hole of the spring of a circle, on all sidewalls the equally distributed spline bar parallel with center line are arranged in the housing, and hull outside has the belt transmission race.In the location hole of the spring at the end goring push spring is housed in casing, goring push spring pushing tow successively circular inner clip plate, interior friction plate, center platen, outside friction disc and cover plate.There is the circular hole that allows transmission shaft intert at the center of inner clip plate and center platen, and the limit, outer ring of inner clip plate and center platen has the spline bar on spline tooth and the interior all sidewalls of housing to be complementary; A spline plate all is equipped with at the center of interior friction plate and outside friction disc, on the circular hollow circle limit of spline plate spline tooth is arranged; Cover plate (being outer plate again) is fixedly connected on the housing opening termination, its center has one can hold the circular hole that inside and outside spline housing and the oral bearing of clutch pawl pawl insert, the intracardiac inside and outside spline housing that is set with in the spline plate center of interior outside friction disc and center platen, the total thickness that its length sleeve should superpose greater than interior outside friction disc and center platen; The spline bar is all arranged inside and outside it, and its outside spends the spline tooth on the spline plate inner ring limit of strong bar and inside and outside friction plate to be complementary, and its inboard spline bar then is complementary with the spline bar of center transmission shaft; Inside and outside spline housing one crown a bearing of adorning on the inner clip plate inner ring, and it is one and then heads on another bearing of adorning on the clutch pawl pawl head.The clutch pawl of this clutch is identical with traditional clutch on-off pawl, and it matches with clutch.

The utlity model has following advantage: 1, simple in structure, more than ten 20 component such as the screw rod of pulling back of traditional clutch, the lever pawl handle of pulling back are only replaced by an inside and outside spline housing, remaining part is all identical, structure is greatly simplified, but economical with materials and cost also make the Installation and Debugging work simplification simultaneously; 2, clutch sensitivity height, because the bearing that the inside and outside spline housing of clutch utilization promotes on the inner clip plate is implemented to separate, parallelism is good, separation property is good, highly sensitive so it promotes; 3, parts few, do not have tiny parts, be difficult to damage, long service life, simultaneously, it is easy to change parts, maintenance easily.

The utility model is described in further detail below in conjunction with accompanying drawing and embodiment:

Fig. 1 shape and structure schematic representation of the present utility model

As shown in Figure 1, the utility model is made up of bottom 1, housing 2, transmission shaft bearing 3, goring push spring 4, inner clip plate 5, interior friction plate 6, center platen 7, outside friction disc 8, cover plate 9, inside and outside spline housing 10 and clutch pawl 11.The center, the interior end of its housing 2 has transmission shaft bearing 3 and envelope that bottom 1 is arranged, the all sides in the interior end have the equally distributed location hole of the spring of a circle, be generally 4～8, and on all sidewalls the equally distributed spline bar parallel with center line arranged in the housing, hull outside has the belt transmission race.Goring push spring 4 is housed in the location hole of the spring at the end in housing, and goring push spring pushing tow successively circular inner clip plate 5, interior friction plate 6, center platen 7, outside friction disc 8 and cover plate 9.There is the circular hole that allows transmission shaft 12 intert at the center of inner clip plate 5 and center platen 7, and the limit, outer ring of inner clip plate and center platen has the spline bar on spline tooth and the interior all sidewalls of housing to be complementary; A spline plate all is equipped with at the center of interior friction plate 6 and outside friction disc 8, on the circular hollow circle limit of spline plate spline tooth is arranged; Cover plate (being outer plate again) 9 is connected the opening termination of housing by screw, the circular hole that its center has the pawl head bearing that holds inside and outside spline housing 10 and clutch pawl 11 to insert.The intracardiac inside and outside spline housing 10 that is set with in the spline plate center of inside and outside friction plate 6,8 and center platen 7, should in outer spline sleeve length be a bit larger tham in the total thickness of outside friction disc and center platen three stack, generally than 5～20 millimeters of the total thickness length of its three's stack; The spline bar is all arranged inside and outside it, and the spline tooth on the spline plate inner ring limit of its outside spline bar and inside and outside friction plate 6,8 is complementary, in it outside spline bar then with the transmission shaft 12 at center on the spline bar be complementary; Inside and outside spline housing 10 1 crowns a bearing of adorning on inner clip plate 5 inner rings, and its other end then heads on another bearing of adorning on the clutch pawl 11 pawl heads.The clutch pawl 11 of this clutch is identical with traditional clutch on-off pawl, and it is close to outside the clutch cover plate 9 during assembling, with supporting being integral of other parts of clutch.

Claims (1)

1, a kind of clutch, form by bottom (1), housing (2), transmission shaft bearing (3), goring push spring (4), inner clip plate (5), interior friction plate (6), center platen (7), outside friction disc (8), cover plate (9), inside and outside spline housing (10) and clutch pawl (11), it is characterized in that: transmission shaft bearing (3) is housed at the center, the interior end of its housing (2) and envelope has bottom (1), the all sides in the interior end have the equally distributed location hole of the spring of a circle, and on all sidewalls the equally distributed spline bar parallel with center line being arranged in the housing, hull outside has the belt transmission race; Goring push spring (4) is housed in the location hole of the spring at the end in housing, and goring push spring pushing tow successively circular inner clip plate (5), interior friction plate (6), center platen (7), outside friction disc (8) and cover plate (9); There is the circular hole that allows transmission shaft (12) intert at the center of inner clip plate (5) and center platen (7), and the limit, outer ring of inner clip plate and center platen has the spline bar on spline tooth and the interior all sidewalls of housing to be complementary; A spline plate all is equipped with at interior friction plate (6) and outside friction disc (8) center, on the circular hollow circle limit of spline plate spline tooth is arranged; Cover plate (9) is fixedly connected on the opening termination of housing (2), and there is the circular hole of the pawl head bearing insertion of holding inside and outside spline housing (10) and clutch pawl (11) at its center; Interior, outside friction disc (6, the central sleeve of spline plate center 8) and center platen (7) is equipped with an inside and outside spline housing (10), the length sleeve that is somebody's turn to do inside and outside spline housing is a bit larger tham the total thickness of interior outside friction disc and center platen three stack, the spline bar is all arranged inside and outside it, its outside spline bar with in, outside friction disc (6, the spline tooth on spline plate inner ring limit 8) is complementary, its inboard spline bar then with the transmission shaft (12) at center on the spline bar be complementary, inside and outside spline housing (10) one crowns a bearing of adorning on inner clip plate (5) inner ring, and its other end then heads on another bearing of adorning on clutch pawl (11) the pawl head; Its clutch pawl (11) is identical with the clutch pawl of traditional clutch, and it is close to outside the clutch cover plate (9) during assembling, with supporting being integral of other parts of clutch.

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