CN201257901Y

CN201257901Y - Hydraulic total pump of sustained-release car clutch

Info

Publication number: CN201257901Y
Application number: CNU2008200152979U
Authority: CN
Inventors: 张田军
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-29
Filing date: 2008-08-29
Publication date: 2009-06-17
Anticipated expiration: 2018-08-29

Abstract

A total hydraulic pumping for slowly releasing automobile clutch comprises a pedal, a hydraulic oil cylinder, a piston component, a slow-releasing valve component and a slow-releasing valve component room. The total hydraulic pumping is characterized in that an oil cylinder isolating seal is fixed on the inner wall of the hydraulic oil cylinder, an upper piston oil seal and a lower piston oil seal adopt O-shaped oil seals, the upper part of a return spring is sleeved on a spring seat at the lower end of a piston body, the piston component is installed in the hydraulic oil cylinder, and the lower end of a top bar passes through a top bar hole on the hydraulic oil cylinder cover and is spliced at the upper end of the piston body, the space in the hydraulic oil cylinder is separated into an upper oil cylinder and a lower oil cylinder through the oil cylinder isolating seal, an oil inlet, a jack of a reverse valve, a jack of a slow-releasing and speed adjusting valve and a lower oil inlet are formed on the side wall of the hydraulic oil cylinder, and an oil storage chamber is fixedly arranged on the side wall of the hydraulic oil cylinder. The total hydraulic pumping avoids inaccuracy and jumping caused by controlling a clutch by the driver with a foot. Therefore, the engine generates impact, flameout or starting of a big accelerator and gears increasing to cause fuel-oil waste, and the operation intensity of the driver is reduced so that the driving of the driver is more comfortable.

Description

Slowly-releasing autoclutch hydraulic total pump

(1) technical field:

The utility model relates to vehicular spare parts, particularly a kind ofly is used for the hydraulic total pump that the slowly-releasing car clutch pedal lifts.

(2) background technology:

At present, the Hydraulic Pump that is used to control clutch of automotive use is single oil cylinder, and automobile driver need be stepped on the clutch control pedal before vehicle starts, and at this moment because the driving of Hydraulic Pump disconnects power-transfer clutch, reaches the purpose that hangs up gear.When starting, chaufeur need lift the clutch control pedal slowly, realizes that the steady joint of power-transfer clutch starts automobile.No matter but be the downward stepping on clutch pedal of chaufeur or the speed of lifting pin all is that chaufeur is controlled voluntarily, therefore, chaufeur labour intensity is big, be prone to fugitiveness and jumping characteristic during particularly artificial releasing clutch control pedal, thereby make in the clutch's jointing process owing to association rate produces impact than excessive, making starts not steady even flame-out phenomenon occurs.This just makes chaufeur have to utilize large throttle to start or increases retaining, causes a large amount of waste fuel.

(3) summary of the invention:

The purpose of this utility model, provide a kind of easy to use, good operation performance, can reduce the chaufeur working strength, avoid error because of the operation generation, improve the stationarity that vehicle starts, need not the slowly-releasing autoclutch hydraulic total pump that open the throttle wide can reduce oil consumption greatly in the retaining process starting and increase.

The technical scheme that adopts is:

Slowly-releasing autoclutch hydraulic total pump comprises pedal, hydraulic ram, piston component, slowly-releasing valve module and slowly-releasing valve module chamber.Be fixed with oil cylinder on the hydraulic ram inwall and isolate oil sealing.

Piston component comprises push rod, piston body, upper piston oil sealing, lower piston oil sealing and retracing spring.Upper piston oil sealing and lower piston oil sealing are O type oil sealing, be installed in respectively on the desired location of upper and lower of piston body, retracing spring top is sleeved on the spring perch of piston body lower end, and spring perch is positioned at lower piston oil sealing below, and spring perch and piston body are connected to an integral structure.Piston component is installed in the hydraulic ram, and the retracing spring lower end is replaced on the lower surface of hydraulic ram.Captive joint with pedal in push rod upper end, the push rod lower end is passed behind the jogger hole that hydraulic ram covers and the grafting of piston body upper end.

With slowly-releasing autoclutch hydraulic total pump initial position is benchmark, and oil cylinder is isolated oil sealing separated by spaces in the hydraulic ram is become upper cylinder and following oil cylinder.The turnover oilhole is arranged, non-return valve jack, slow release speed control cock jack on the hydraulic ram sidewall.Above-mentioned turnover oilhole is positioned at oil cylinder and isolates the oil sealing top, and non-return valve jack and slowly-releasing speed-regulating valve jack are positioned at oil cylinder and isolate the oil sealing below.Be provided with non-return valve at the non-return valve jack, in slow release speed control cock jack, be provided with the slow release speed control cock.Be set with oil cabinet on the hydraulic ram sidewall, this oil cabinet contains above-mentioned turnover oilhole, non-return valve and slowly-releasing speed-regulating valve.Turnover oilhole is down arranged on the hydraulic ram lower sides, and following turnover oilhole is positioned at lower piston oil sealing below.

During use, above-mentioned oil cabinet is connected with a upper oil can by transport pipe; Following oil outlet is connected with the push rod of autoclutch by driving oil pipe line.

Principle of work of the present utility model:

Since above-mentioned non-return valve can only oil-feed can not be fuel-displaced, thereby chaufeur can only come the engaging speed of control clutch to reach the purpose that steadily starts and increase retaining by the oily flow of setting the slow release speed control cock.

When automobile started, chaufeur moved down with foot-operated clutch control pedal down, push rod promotion piston body, and the oil in the upper cylinder enters oil cabinet through upper cylinder turnover oilhole.Oil in the while oil cabinet is through the slow release speed control cock and check valve is inhaled into because the lower piston oil sealing moves down and oil cylinder is isolated in the negative pressure cavity that forms between the oil sealing.And in-oil cylinder oil enters the power-transfer clutch push rod that drives oil pipe line propelling vehicle power-transfer clutch through the extruding of piston lower piston oil sealing down, disengages the clutch, and hangs up gear.When chaufeur is anti-when lifting pin, under the combined action of engine clucht push rod retracing spring and total pump piston body retracing spring, piston body is upwards moved, this oil that is positioned in the lower piston oil sealed negative pressure oil pocket in oil cylinder at present slowly enters oil cabinet by the slow release speed control cock, therefore piston body be slowly and average rate ground upwards move, it is fixed that its speed is come by selected slow release speed control cock.Like this, drive oil in the oil circuit and be slowly and average rate ground enters in the hydraulic ram, thereby slowly and average rate ground releasing clutch push rod makes power-transfer clutch by the chaufeur setting speed slowly and average rate ground engages, reach automobile balance and start and increase the purpose of keeping off fuel-economizing.

The utility model advantage:

Avoided chaufeur with inaccuracy and jumping characteristic that foot control system power-transfer clutch occurs, driving engine has been produced impact, flame-out or large throttle starts, increases the fuel oil waste that retaining causes, and reduced the manipulation strength of chaufeur, makes the driving more comfortable.

(4) description of drawings:

Fig. 1 is the utility model initial condition structural representation.

Fig. 2 is the utility model running condition scheme drawing.

(5) specific embodiment:

Slowly-releasing autoclutch hydraulic total pump comprises pedal 1, hydraulic ram 2, piston component, slowly-releasing valve module and slowly-releasing valve module chamber.Be fixed with oil cylinder on hydraulic ram 2 inwalls and isolate oil sealing 19.

Piston component comprises push rod 3, piston body 4, upper piston oil sealing 5, lower piston oil sealing 6 and retracing spring 7.Upper piston oil sealing 5 and lower piston oil sealing 6 are O type oil sealing, be installed in respectively on the desired location of upper and lower of piston body 4, retracing spring 7 tops are sleeved on the spring perch 8 of piston body 4 lower ends, and spring perch 8 is positioned at lower piston oil sealing 6 belows, and spring perch 8 is connected to an integral structure with piston body 4.Piston component is installed in the hydraulic ram 2, and retracing spring 7 lower ends are replaced on the lower surface of hydraulic ram 2.Captive joint with pedal 1 in push rod 3 upper ends, jogger hole 9 backs and the grafting of piston body 4 upper ends that hydraulic ram 2 covers are passed in push rod 3 lower ends.

With slowly-releasing autoclutch hydraulic total pump initial position is benchmark, and oil cylinder is isolated oil sealing 19 separated by spaces in the hydraulic ram 2 is become upper cylinder 10 and following oil cylinder 11.Turnover oilhole 12 is arranged, non-return valve jack 13, slow release speed control cock jack 14 on hydraulic ram 2 sidewalls.Above-mentioned turnover oilhole 12 is positioned at oil cylinder and isolates oil sealing 19 tops, and non-return valve jack 13 and slowly-releasing speed-regulating valve jack 14 are positioned at oil cylinder and isolate oil sealing 19 belows.Be provided with non-return valve 15 at non-return valve jack 13, in slow release speed control cock jack 14, be provided with slow release speed control cock 16.Be set with oil cabinet 17 on hydraulic ram 2 sidewalls, this oil cabinet 17 contains above-mentioned turnover oilhole 12, non-return valve 15 and slowly-releasing speed-regulating valve 16.Turnover oilhole 18 is down arranged on hydraulic ram 2 lower sides, and following turnover oilhole 18 is positioned at lower piston oil sealing 6 belows.

Claims

1, slowly-releasing autoclutch hydraulic total pump, comprise pedal (1), hydraulic ram (2), piston component, slowly-releasing valve module and slowly-releasing valve module chamber, it is characterized in that being fixed with on hydraulic ram (2) inwall oil cylinder and isolate oil sealing (19), piston component comprises push rod (3), piston body (4), upper piston oil sealing (5), lower piston oil sealing (6) and retracing spring (7), upper piston oil sealing (5) and lower piston oil sealing (6) are O type oil sealing, be installed in respectively on the desired location of upper and lower of piston body (4), retracing spring (7) top is sleeved on the spring perch (8) of piston body (4) lower end, spring perch (8) is positioned at lower piston oil sealing (6) below, spring perch (8) is connected to an integral structure with piston body (4), piston component is installed in the hydraulic ram (2), retracing spring (7) lower end is replaced on the lower surface of hydraulic ram (2), captive joint with pedal (1) in push rod (3) upper end, jogger hole (9) back and the grafting of piston body (4) upper end that hydraulic ram (2) covers passed in push rod (3) lower end; With slowly-releasing autoclutch hydraulic total pump initial position is benchmark, oil cylinder is isolated oil sealing (19) the interior separated by spaces of hydraulic ram (2) is become upper cylinder (10) and following oil cylinder (11), on hydraulic ram (2) sidewall, turnover oilhole (12) is arranged, non-return valve jack (13), slow release speed control cock jack (14), above-mentioned turnover oilhole (12) is positioned at oil cylinder and isolates oil sealing (19) top, non-return valve jack (13) and slowly-releasing speed-regulating valve jack (14) are positioned at oil cylinder and isolate oil sealing (19) below, be provided with non-return valve (15) at non-return valve jack (13), in slow release speed control cock jack (14), be provided with slow release speed control cock (16), on hydraulic ram (2) sidewall, be set with oil cabinet (17), this oil cabinet (17) contains above-mentioned turnover oilhole (12), non-return valve (15) and slowly-releasing speed-regulating valve (16), turnover oilhole (18) is down arranged on hydraulic ram (2) lower sides, and following turnover oilhole (18) is positioned at lower piston oil sealing (6) below.