CN102562851B

CN102562851B - Separating unit for clutch

Info

Publication number: CN102562851B
Application number: CN 201210065091
Authority: CN
Inventors: 朱彦春
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-13
Filing date: 2012-03-13
Publication date: 2013-07-10
Anticipated expiration: 2032-03-13
Also published as: CN102562851A

Abstract

The invention relates to a separating unit for a clutch, aiming at solving the problem that after a clutch friction plate of the existing separating unit for the clutch is worn off, the free stroke of a pedal needs to be manually adjusted, so that the work load of a driver is increased, and if the adjustment is not carried out in time, the clutch can be seriously ablated. For the separating unit, a nylon sleeve is embedded on a separating piston; a first shoulder is processed on the inner side wall of the separating piston; one end of the nylon sleeve is contacted with the first shoulder, the other end of the nylon sleeve is clamped on the separating piston through a clamping spring; the separating piston is sheathed on a shaft sleeve of a transmission through the nylon sleeve and a first nylon ring; an oil duct is arranged on the shaft sleeve of the transmission; a ring-shaped work cavity is formed between the separating piston and the shaft sleeve of the transmission; a deflation adjusting screw is arranged at the upper end of the ring-shaped work cavity; one end of the oil duct is communicated with the ring-shaped work cavity, and the other end of the oil duct is communicated with a main cylinder of an operation mechanism of the clutch. The separating unit disclosed by the invention is used for controlling separation of the clutch.

Description

A kind of segregating unit of clutch

Technical field

The present invention relates to a kind of segregating unit of clutch.

Background technique

At present, the automobile clutch control gear comprises that mechanical type is handled and hydraulic type gas is assisteded control two kinds of forms.More than two kinds of form clutch control devices all comprise disengaging yoke, shift fork cover and bearing support, and all there is complex structure, job insecurity and clutch friction pad wear need artificial manual setting free pedal travel later on, as adjust and untimelyly will cause the serious problem of ablating of clutch, no matter and above which kind of segregating unit all be unable to do without disengaging yoke declutch shaft bearing, push rod and adjustment pull bar, because the elastic force of the holddown spring of automobile clutch is very big, so disengaging yoke of clutch, the shift fork cover, bearing support, push rod and adjust pull bar and very easily wear and tear causes clutch separation thoroughly and in conjunction with faults such as instabilities.

To sum up, existing clutch release assembly is wanted artificial manual setting free pedal travel later at the clutch friction pad wear, has increased work load for drivers, as has adjusted the untimely clutch that also very easily causes and seriously ablate.

Summary of the invention

The present invention wants artificial manual setting free pedal travel for solving existing clutch release assembly later at the clutch friction pad wear, increased work load for drivers, as adjust the untimely problem that also very easily causes the serious ablation of clutch, and then provide a kind of segregating unit of clutch.

The present invention solves the problems of the technologies described above the technological scheme of taking to be: the segregating unit of clutch of the present invention comprises isolation piston, release bearing, the venting adjusting screw, nylon sleeve, jump ring, the relay valve piston, first nylon ring, first oil sealing, second oil sealing, second nylon ring, first return spring, second return spring, suction valve, speed changer one shaft sleeve, housing, end cap, two the 3rd oil sealings and two piston spline pins, described speed changer one shaft sleeve is sleeved on one of the speed changer, be processed with first annular groove on the outer side wall of described speed changer one shaft sleeve, described first nylon ring is sleeved in first annular groove, described nylon sleeve is embedded on the isolation piston, be processed with first shoulder on the madial wall of described isolation piston, one end of nylon sleeve contacts with first shoulder, the other end of nylon sleeve is installed on the isolation piston by jump ring, described isolation piston is sleeved on speed changer one shaft sleeve by nylon sleeve and first nylon ring, be processed with oil duct on described speed changer one shaft sleeve, form the ring active chamber between described isolation piston and speed changer one shaft sleeve, the top of described ring active chamber is provided with the venting adjusting screw, described ring active chamber is by first oil sealing and second oil sealing sealing, one end of oil duct is communicated with the ring active chamber, the other end of oil duct is communicated with clutch release master cylinder, be symmetrily processed with two piston spline grooves on the outer wall of described speed changer one shaft sleeve along its length, longitudinally be processed with two through holes on the described isolation piston, be provided with a piston spline pin in each through hole, each piston spline pin slides in the piston spline groove of correspondence, longitudinally be processed with the draining hole on described speed changer one shaft sleeve, described release bearing is sleeved on the isolation piston;

Be processed with second annular groove on the described isolation piston outer wall, described second nylon ring is positioned at second annular groove, described housing is sleeved on the isolation piston by second nylon ring, the top of described housing is provided with relay valve piston cavity and air inlet valve pocket, described relay valve piston cavity, air inlet valve pocket and oil duct are interconnected, be provided with the ring inlet valve seat between relay valve piston cavity and the air inlet valve pocket, described relay valve piston is positioned at the relay valve piston cavity, described suction valve and first return spring all are positioned at the air inlet valve pocket, one end of suction valve contacts with the ring inlet valve seat, described end cap is installed on the air inlet valve pocket, one end of first return spring contacts with suction valve, the other end of first return spring contacts with end cap, be processed with first air flue on the described housing, described air inlet valve pocket is communicated with gas receiver on the automobile by first air flue; Described second return spring is sleeved on the relay valve piston, described relay valve piston is provided with second shoulder, one end of second return spring contacts with second shoulder of relay valve piston, the other end of second return spring contacts with the ring inlet valve seat, be processed with air outlet flue on the described relay valve piston, processing second air flue on the described housing, described air outlet flue is in communication with the outside by second air flue, processing the 3rd air flue on the described housing, one end of the 3rd air flue is communicated with the relay valve piston cavity, isolation piston, form ring power-assisted chamber between speed changer one shaft sleeve and the housing, the other end of the 3rd air flue is communicated with ring power-assisted chamber.

The invention has the beneficial effects as follows:

Isolation piston of the present invention can be free to slide along speed changer one shaft sleeve level, the clutch friction pad wear need not artificial manual setting free pedal travel later on, reduce the wearing and tearing that clutch does not have free travel to bring, prolonged the working life of clutch friction plate greatly, improve traffic safety, reduced the vehicle operating cost;

Directly do not contact between isolation piston of the present invention and speed changer one shaft sleeve, isolation piston is sleeved on speed changer one shaft sleeve by nylon sleeve and first nylon ring, the outer wall of speed changer one shaft sleeve is not worn, be processed with two piston spline grooves on speed changer one shaft sleeve simultaneously, isolation piston and speed changer one shaft sleeve are located in piston spline groove by the spline pin, guaranteed that isolation piston only along sliding on the length direction of speed changer one shaft sleeve, has prolonged the working life of oil sealing greatly;

Form active chamber between isolation piston of the present invention and speed changer one shaft sleeve, oil pressure size in the active chamber can allow the driver come suffered resistance size in the perception clutch disengage process by the reaction force of the oil pressure in the clutch master cylinder, and the driver can judge the bonding state of clutch with this;

The segregating unit of clutch of the present invention is when separating control procedure to clutch, need not to arrange disengaging yoke, shift fork cover, separator levers, push rod, thereby reduced member easy to wear, improved working stability, and the present invention has advantage simple in structure, that fabricating cost is low.

Description of drawings

Fig. 1 is that the master of the segregating unit of clutch of the present invention looks sectional view.

Embodiment

Embodiment one: as shown in Figure 1, the segregating unit of the clutch of present embodiment comprises isolation piston 1, release bearing 2, venting adjusting screw 4, nylon sleeve 5, jump ring 6, relay valve piston 7, first nylon ring 10, first oil sealing 11, second oil sealing 12, second nylon ring 15, first return spring 17, second return spring 18, suction valve 26, speed changer one shaft sleeve 27, housing 30, end cap 36, two the 3rd oil sealings 19 and two piston spline pins 25, described speed changer one shaft sleeve 27 is sleeved on one 31 of the speed changer, be processed with the first annular groove 27-1 on the outer side wall of described speed changer one shaft sleeve 27, described first nylon ring 10 is sleeved in the first annular groove 27-1, described nylon sleeve 5 is embedded on the isolation piston 1, be processed with the first shoulder 1-1 on the madial wall of described isolation piston 1, one end of nylon sleeve 5 contacts with the first shoulder 1-1, the other end of nylon sleeve 5 is installed on the isolation piston 1 by jump ring 6, described isolation piston 1 is sleeved on speed changer one shaft sleeve 27 by nylon sleeve 5 and first nylon ring 10, be processed with oil duct 20 on described speed changer one shaft sleeve 27, form ring active chamber 21 between described isolation piston 1 and speed changer one shaft sleeve 27, the top of described ring active chamber 21 is provided with venting adjusting screw 4, described ring active chamber 21 is by first oil sealing 11 and 12 sealings of second oil sealing, one end of oil duct 20 is communicated with ring active chamber 21, the other end of oil duct 20 is communicated with clutch release master cylinder, be symmetrily processed with two piston spline groove 27-2 on the outer wall of described speed changer one shaft sleeve 27 along its length, longitudinally be processed with two through hole 1-2 on the described isolation piston 1, be provided with a piston spline pin 25 in each through hole 1-2, each piston spline pin 25 slides in the piston spline groove 27-2 of correspondence, longitudinally be processed with draining hole 24 on described speed changer one shaft sleeve 27, described release bearing 2 is sleeved on the isolation piston 1;

Be processed with the second annular groove 1-3 on described isolation piston 1 outer wall, described second nylon ring 15 is positioned at the second annular groove 1-3, described housing 30 is sleeved on the isolation piston 1 by second nylon ring 15, the top of described housing 30 is provided with relay valve piston cavity 33 and air inlet valve pocket 35, described relay valve piston cavity 33, air inlet valve pocket 35 and oil duct 20 are interconnected, be provided with ring inlet valve seat 32 between relay valve piston cavity 33 and the air inlet valve pocket 35, described relay valve piston 7 is positioned at relay valve piston cavity 33, described suction valve 26 and first return spring 17 all are positioned at air inlet valve pocket 35, one end of suction valve 26 contacts with ring inlet valve seat 32, described end cap 36 is installed on the air inlet valve pocket 35, one end of first return spring 17 contacts with suction valve 26, the other end of first return spring 17 contacts with end cap 36, be processed with first air flue 16 on the described housing 30, described air inlet valve pocket 35 is communicated with gas receiver on the automobile by first air flue 16; Described second return spring 18 is sleeved on the relay valve piston 7, described relay valve piston 7 is provided with the second shoulder 7-1, one end of second return spring 18 contacts with the second shoulder 7-1 of relay valve piston 7, the other end of second return spring 18 contacts with ring inlet valve seat 32, be processed with air outlet flue 29 on the described relay valve piston 7, processing second air flue 28 on the described housing 30, described air outlet flue 29 is in communication with the outside by second air flue 28, processing the 3rd air flue 22 on the described housing 30, one end of the 3rd air flue 22 is communicated with relay valve piston cavity 33, isolation piston 1, the other end that forms ring power-assisted chamber 23, the three air flues 22 between speed changer one shaft sleeve 27 and the housing 30 is communicated with ring power-assisted chamber 23.

Embodiment two: as shown in Figure 1, the described segregating unit of present embodiment also comprises first seal ring 8, along the circumferential direction be processed with the 3rd annular groove 7-2 on the described relay valve piston 7, described first seal ring 8 is sleeved in the 3rd annular groove 7-2 of relay valve piston 7.So seal action is played in design.Other composition and annexation are identical with embodiment one.

Embodiment three: as shown in Figure 1, the described segregating unit of present embodiment also comprises second seal ring 9, is processed with Fourth Ring connected in star 27-3 on described speed changer one shaft sleeve 27, and described second seal ring 9 is positioned at Fourth Ring connected in star 27-3.So seal action is played in design.Other composition and annexation are identical with embodiment one or two.

Embodiment four: as shown in Figure 1, the described segregating unit of present embodiment also comprises first sealing gland 13, along the circumferential direction be processed with five rings connected in star 27-4 on the outer wall of described speed changer one shaft sleeve 27, described first sealing gland 13 is positioned at five rings connected in star 27-4.So seal action is played in design.Other composition and annexation are identical with embodiment three.

Embodiment five: as shown in Figure 1, the described segregating unit of present embodiment also comprises second sealing gland 14, along the circumferential direction is processed with the 6th annular groove 30-1 on the described housing 30, and described second sealing gland 14 is positioned at the 6th annular groove 30-1.So seal action is played in design.Other composition and annexation and embodiment one, two or four identical.

Working principle:

When let slip the clutch, enter in the active chamber 21 and pressure is applied on isolation piston 1 and the relay valve piston 7 through oil duct 20 from the high pressure oil of clutch release master cylinder, relay valve piston 7 under oil pressure actuated to suction valve 26 1 side shiftings, contact with suction valve 26 up to relay valve piston 7, thereby make air outlet flue 29 be in closed state, relay valve piston 7 continues to be moved to the left then, thereby promoting suction valve 26 is opened, pressurized gas in the gas receiver passes through suction port 16 successively, air flue 22 enters ring power-assisted chamber 23, promoting isolation piston 1 under the effect of the pressurized gas in ring power-assisted chamber 23 is moved to the left, isolation piston 1 is moved to the left the release bearing that drives on the isolation piston 1 and is moved to the left, thereby realizes the separation process of clutch;

When engage the clutch, oil pressure from clutch release master cylinder disappears, relay valve piston 7 moves right under the effect of second return spring 18, suction valve 26 also moves right under the effect of first return spring 17 simultaneously, when suction valve 26 when ring inlet valve seat 32 on the housing 30 contacts, the gas that entered by suction port 16 this moment is blocked, flow into pressurized gas in the ring power-assisted chamber 23 successively through the 3rd air flue 22, air outlet flue 29 and second air flue 28 (relief opening) are discharged, release bearing 2 moves right under the reaction force of clutch disengaging lever, release bearing 2 drive isolation pistons 1 move right simultaneously, get back to initial position up to isolation piston 1, clutch is again in conjunction with transferring power.

Claims

1. the segregating unit of a clutch, it is characterized in that: described segregating unit comprises isolation piston (1), release bearing (2), venting adjusting screw (4), nylon sleeve (5), jump ring (6), relay valve piston (7), first nylon ring (10), first oil sealing (11), second oil sealing (12), second nylon ring (15), first return spring (17), second return spring (18), suction valve (26), speed changer one shaft sleeve (27), housing (30), end cap (36), two the 3rd oil sealings (19) and two piston spline pins (25), described speed changer one shaft sleeve (27) is sleeved on the speed changer one (31), be processed with first annular groove (27-1) on the outer side wall of described speed changer one shaft sleeve (27), described first nylon ring (10) is sleeved in first annular groove (27-1), described nylon sleeve (5) is embedded on the isolation piston (1), be processed with first shoulder (1-1) on the madial wall of described isolation piston (1), one end of nylon sleeve (5) contacts with first shoulder (1-1), the other end of nylon sleeve (5) is installed on the isolation piston (1) by jump ring (6), described isolation piston (1) is sleeved on speed changer one shaft sleeve (27) by nylon sleeve (5) and first nylon ring (10), be processed with oil duct (20) on described speed changer one shaft sleeve (27), form ring active chamber (21) between described isolation piston (1) and speed changer one shaft sleeve (27), the top of described ring active chamber (21) is provided with venting adjusting screw (4), described ring active chamber (21) is by first oil sealing (11) and second oil sealing (12) sealing, one end of oil duct (20) is communicated with ring active chamber (21), the other end of oil duct (20) is communicated with clutch release master cylinder, be symmetrily processed with two piston spline grooves (27-2) on the outer wall of described speed changer one shaft sleeve (27) along its length, longitudinally be processed with two through holes (1-2) on the described isolation piston (1), be provided with a piston spline pin (25) in each through hole (1-2), each piston spline pin (25) slides in the piston spline groove (27-2) of correspondence, longitudinally be processed with draining hole (24) on described speed changer one shaft sleeve (27), described release bearing (2) is sleeved on the isolation piston (1);

Be processed with second annular groove (1-3) on described isolation piston (1) outer wall, described second nylon ring (15) is positioned at second annular groove (1-3), described housing (30) is sleeved on the isolation piston (1) by second nylon ring (15), the top of described housing (30) is provided with relay valve piston cavity (33) and air inlet valve pocket (35), described relay valve piston cavity (33), air inlet valve pocket (35) and oil duct (20) are interconnected, be provided with ring inlet valve seat (32) between relay valve piston cavity (33) and the air inlet valve pocket (35), described relay valve piston (7) is positioned at relay valve piston cavity (33), described suction valve (26) all is positioned at air inlet valve pocket (35) with first return spring (17), one end of suction valve (26) contacts with ring inlet valve seat (32), described end cap (36) is installed on the air inlet valve pocket (35), one end of first return spring (17) contacts with suction valve (26), the other end of first return spring (17) contacts with end cap (36), be processed with first air flue (16) on the described housing (30), described air inlet valve pocket (35) is communicated with gas receiver on the automobile by first air flue (16); Described second return spring (18) is sleeved on the relay valve piston (7), described relay valve piston (7) is provided with second shoulder (7-1), one end of second return spring (18) contacts with second shoulder (7-1) of relay valve piston (7), the other end of second return spring (18) contacts with ring inlet valve seat (32), be processed with air outlet flue (29) on the described relay valve piston (7), described housing (30) is gone up processing second air flue (28), described air outlet flue (29) is in communication with the outside by second air flue (28), described housing (30) is gone up processing the 3rd air flue (22), one end of the 3rd air flue (22) is communicated with relay valve piston cavity (33), isolation piston (1), form ring power-assisted chamber (23) between speed changer one shaft sleeve (27) and the housing (30), the other end of the 3rd air flue (22) is communicated with ring power-assisted chamber (23).

2. the segregating unit of clutch according to claim 1, it is characterized in that: described segregating unit also comprises first seal ring (8), along the circumferential direction be processed with the 3rd annular groove (7-2) on the described relay valve piston (7), described first seal ring (8) is sleeved in the 3rd annular groove (7-2) of relay valve piston (7).

3. the segregating unit of clutch according to claim 1 and 2, it is characterized in that: described segregating unit also comprises second seal ring (9), be processed with Fourth Ring connected in star (27-3) on described speed changer one shaft sleeve (27), described second seal ring (9) is positioned at Fourth Ring connected in star (27-3).

4. the segregating unit of clutch according to claim 3, it is characterized in that: described segregating unit also comprises first sealing gland (13), along the circumferential direction be processed with five rings connected in star (27-4) on the outer wall of described speed changer one shaft sleeve (27), described first sealing gland (13) is positioned at five rings connected in star (27-4).

5. according to the segregating unit of claim 1,2 or 4 described clutches, it is characterized in that: described segregating unit also comprises second sealing gland (14), along the circumferential direction be processed with the 6th annular groove (30-1) on the described housing (30), described second sealing gland (14) is positioned at the 6th annular groove (30-1).