CN2172228Y

CN2172228Y - Automotive economizing speed variator

Info

Publication number: CN2172228Y
Application number: CN 93231929
Authority: CN
Inventors: 刘值庵; 顾思罱
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-04
Filing date: 1993-10-04
Publication date: 1994-07-20
Anticipated expiration: 2003-10-04

Abstract

The utility model relates to a gasoline saving speed changer for an automobile, which is the improvement of a transmission device for the speed change gear of an automobile. A gasoline saving barrier and the operating device of the gasoline saving barrier are arranged on the back end of speed change device of the existing automobile. When operating device is operated, and a second shaft and a third shaft are in straight coupled shaft transmission through, the gasoline saving speed changer for an automobile of the utility model has the same transmission arrangement as the existing gasoline saving speed changer for an automobile. When the operating lever of the gasoline saving barrier is operated, and the second shaft overdrives the third shaft through a driving gear, a front gear for a transmission shaft, a back gear for a transmission shaft, and a follower gear, the third shaft can still obtain high rotary speed under the condition that the opening degree of a gasoline throttle is smaller. Therefore, when an automobile runs in a deadhead state, or the automobile normally runs, higher running speed is obtained through the small gasoline throttle, and the purpose of saving gasoline is achieved.

Description

Automotive economizing speed variator

A kind of fuel saving speed variator of automobile of the utility model relates to the layout of vehicle transmission gear, specifically to the improvement of automobile variable speed wheel word, is in existing Automotive transmission rear end fuel-economizing shelves and operating control thereof to be set.

Existing Automotive transmission mainly is made up of one, two, tween drive shaft, gear cluster, increaser, shift fork, synchro and shell, 100～140 kilometers of design speed per hours, and the power of tonnage design configurations is at 6.5～8.5 kilowatts.The automobile variable speed that this speed changer structure is finished makes automobile in heavy duty (rated tonnage) when travelling, engine power is not fully exerted, but when the automobile sky is sailed (not loading), accelerator open degree remains unchanged, and engine output is identical, and tonnage calculating and transportation practical experience show in proportion, engine fuel consumption does not have significant difference, the large throttle sky is sailed and is just obtained the higher speed of a motor vehicle, and oil consumption can not reduce, and physical presence serious waste power, phenomenon wastes energy; Small passenger car is performance its special purpose and super performance, the speed per hour design reaches 180～240 kilometers, conduct oneself with dignity 1.5～2 tons, carrying adds baggage container by 2～2.5 tons of calculating, corresponding tonnage allocating power number does not wait up and down at 21～29 kilowatts, by power acceleration principle theory as can be known, and when car is obtaining 2/7 above ideal velocity, when at the uniform velocity travelling, still have the surplus power about 2/5.But if at this moment adopt a kind of boost installation of shift form to regulate transmitting ratio, the driving engine surplus power is not fully exerted, has reduced consumption of fuel, energy savings can guarantee that again the super performance of existing Automotive transmission is not changed as far as possible.

The purpose of this utility model is exactly the deficiency that overcomes existing Automotive transmission, a kind of structural arrangement of improved automobile variable speed gear system is disclosed, in the hope of under the prerequisite that keeps the existing various performances of Automotive transmission, reach and make full use of the running car excess power, reduce consumption of fuel when travelling, thereby realize the effect of fuel-economizing.

A kind of fuel saving speed variator of automobile of the utility model, be on existing Automotive transmission, to increase fuel-economizing shelves and operating control, the technical scheme that realizes the utility model purpose is: the said fuel-economizing shelves of a. are at existing Automotive transmission shell aft end face captive joint fuel-economizing shelves shell, two shaft rear ends coincide by two needle bearings and are provided with three in fuel-economizing shelves shell, and coincideing by the tween drive shaft needle bearing in the tween drive shaft rear end is provided with transmission shaft; The driving gear of backside tape disjunctor spline fixedly is housed with flat key on two back segments, and driving gear is constant-mesh with the transmission shaft front gear that is fixed on the transmission shaft with flat key; The transmission shaft backgear that is fixed on the transmission shaft with flat key is constant-mesh with the phantom gear that is sleeved on three, and phantom gear can freely rotate by friction speed on three; Three leading portion spline upper sleeves are equipped with a sliding gear collar, and a shift fork that is sleeved on the sliding thick stick of shift fork is arranged on the sliding gear collar, be equipped with on the shift fork one with the overhanging shift fork inner rocker arm that is connected at the shift fork outer rocker arm of fuel-economizing transmission case cover; B. said operating control is made up of the Das Gaspedal, throttle lever, fuel-economizing shelves joystick and the pipe link that are installed on the operator's compartment base plate, throttle lever is connected with Das Gaspedal, throttle lever is provided with the throttle limiting stopper, the throttle lever front end is positioned at throttle limiting stopper below, the Throttle Opening Control rod rear end is that pin is connected with fuel-economizing shelves joystick hypomere, fuel-economizing shelves joystick lower end is that pin is connected with the pipe link front end, and the pipe link rear end is that pin is connected with said shift fork outer rocker arm.

After using the utility model fuel saving speed variator of automobile, at automobile is that heavy duty is travelled or the small passenger car starting-up to speed, during climbing, push away fuel-economizing shelves joystick before the chaufeur, move behind the fuel-economizing shelves joystick hypomere pulling throttle lever, step on the gas pedal under the chaufeur, remove large throttle under the throttle lever, the throttle lever front end can not hinder throttle lever and fully moves down because of throttle lever is provided with the throttle limiting stopper, the shelves of fuel-economizing simultaneously joystick lower end promotes to move behind the pipe link, after the pipe link that moves promote the shift fork outer rocker arm, the shift fork inner rocker arm rotates, the shift fork inner rocker arm promotes shift fork and moves forward along the sliding thick stick of shift fork, the shift fork of reach drive again sliding gear collar reach break away from phantom gear front side spline and and then coincide with the spline of driving gear rear side, realize two and three connecting shafts rotation outputting powers, this moment, phantom gear was in the friction speed rotary state.When two and three connecting shafts rotated outputting powers, the utility model fuel saving speed variator of automobile and existing Automotive transmission were as broad as long on transmission performance.When the automobile sky is sailed or small passenger car starting-up to speed when at the uniform velocity travelling after obtaining to design F-Zero 2/7 or more, fuel-economizing shelves joystick in chaufeur post-tensioning the utility model fuel saving speed variator of automobile, fuel-economizing shelves joystick hypomere promotes Throttle Opening Control and moves forward to piece below in throttle restriction position on the throttle lever on the one hand, step on the gas pedal under the chaufeur, throttle lever can only be displaced downwardly to throttle limiting stopper and the contacted position of throttle lever front end, thereby the restriction accelerator open degree is design fuel-economizing aperture state, also play simultaneously the speed limit safety effect, on the other hand, fuel-economizing shelves joystick lower end spurs pipe link forward, the pipe link pulling shift fork outer rocker arm of reach, the shift fork inner rocker arm rotates, the shift fork inner rocker arm promotes shift fork and moves backward along the sliding thick stick of shift fork, after the shift fork that moves drive again move behind the sliding gear collar break away from the spline of driving gear rear side and and then coincide with phantom gear front side spline, two of this moments and three direct-connected connecting shaft transmissions of disengaging, but two power are through driving gear, the transmission shaft front gear, transmission shaft, transmission shaft backgear and phantom gear drive three, design driving gear and transmission shaft front gear, transmission shaft backgear and phantom gear are the speedup transmission, then on three, can obtain than two high rotating speeds at last, and this moment accelerator open degree than three at two, required accelerator open degree was little when three direct-connected transmissions obtained identical high rotating speed down, that is to say the structure of utilizing the utility model fuel saving speed variator of automobile, when the automobile sky is sailed or the small passenger car normal speed is travelled, also can reach the design speed per hour with little throttle, thereby realize reducing consumption of fuel, reach the purpose of fuel-economizing.In sum, the structure of the utility model fuel saving speed variator of automobile has realized the purpose of this utility model.

Below in conjunction with accompanying drawing the utility model fuel saving speed variator of automobile and embodiment are described in further detail.

Fig. 1 is the structural profile scheme drawing of an embodiment of the utility model fuel saving speed variator of automobile;

Fig. 2 is an A-A sectional structure scheme drawing among Fig. 1;

Fig. 3 is the structural representation of operating control part among embodiment of the utility model fuel saving speed variator of automobile.

As an embodiment who on existing Automotive transmission, increases the utility model fuel saving speed variator of automobile of fuel-economizing shelves and operating control, as shown in figures 1 and 3, said fuel-economizing shelves are at existing Automotive transmission shell 1 aft end face captive joint fuel-economizing shelves shell 11 in the utility model fuel saving speed variator of automobile, it is convenient to existing Automotive transmission transformation and assembly technology requirement to consider, fuel-economizing shelves shell 11 can be to be connected on the aft end face of existing Automotive transmission shell 1 by screw retention, coincideing by two needle bearings 5 in fuel-economizing shelves shell 11 interior two 28 rear ends is provided with three 24, and coincideing by tween drive shaft needle bearing 29 in tween drive shaft 30 rear ends is provided with transmission shafts 26; The driving gear 3 of backside tape disjunctor spline fixedly is housed with flat key on two 28 back segments, and driving gear 3 is constant-mesh with the transmission shaft front gear 2 that is fixed on the transmission shaft 26 with flat key; The transmission shaft backgear 25 that is fixed on the transmission shaft 26 with flat key is constant-mesh with the phantom gear 10 that is sleeved on three 24, and phantom gear 10 can freely rotate by friction speed on three 24; Three 24 leading portion spline upper sleeves are equipped with a sliding gear collar 27, and a shift fork 8 that is sleeved on the sliding thick stick 4 of shift fork is arranged on the sliding gear collar 27, be equipped with on the shift fork 8 one with the overhanging shift fork inner rocker arm 6 that links to each other at the shift fork outer rocker arm 7 of fuel-economizing transmission case cover 9; Said operating control is by the Das Gaspedal 36 that is installed on the operator's compartment base plate 41, throttle lever 38, fuel-economizing shelves joystick 40 and pipe link 42 are formed, throttle lever 39 is connected with Das Gaspedal 36, be existing accelerator control device on the existing automobile, supporting with the utility model fuel saving speed variator of automobile is that throttle lever 39 is provided with throttle limiting stopper 37, throttle lever 38 front ends are positioned at throttle limiting stopper 37 belows, throttle lever 38 rear ends are that pin is connected with fuel-economizing shelves joystick 40 hypomeres, fuel-economizing shelves joystick 40 lower ends are that pin is connected with pipe link 42 front ends, pipe link 42 rear ends are connected for pin with the said shift fork outer rocker arm 7 in front, this kind connection mode, during chaufeur push-and-pull fuel-economizing shelves joystick 40 upper ends, on pipe link 7, can obtain big displacement, and throttle lever 38 can obtain required less displacement.

Automobile heavy duty travel or small passenger car at starting-up to speed, during climbing, push away fuel-economizing shelves joystick 40 before the chaufeur, move away restriction throttle limiting stopper 37 positions behind the throttle lever 38, chaufeur can descend step on the gas pedal 36 to promote throttle levers 39 and fully move down and make throttle reach required maximum opening, shift fork outer rocker arm 7 is crossed by pipe link 42 back Mobile Communication, shift fork inner rocker arm 6 rotates, stir shift fork 8 along sliding thick stick 4 reaches of shift fork and 27 reaches of drive sliding gear collar, realize direct-connected transmission for two 28 and three 24, phantom gear 10 is that friction speed freely rotates, and the transmission of the utility model fuel saving speed variator of automobile is identical in essence with existing Automotive transmission transmission; When the automobile sky is sailed or small passenger car when normally at the uniform velocity travelling, but chaufeur post-tensioning fuel-economizing shelves joystick 40, promote throttle lever 38 and pipe link 42 reaches, throttle lever 38 moves forward to piece 37 belows in throttle restriction position on the throttle lever 39, during step on the gas pedal 36, throttle lever 39 can only be displaced downwardly to throttle limiting stopper 37 and be subjected to the position that throttle lever 38 front ends hinder under the chaufeur, and accelerator open degree is restricted, both play the effect of control oil consumption, played the speed limit safety effect again; Pipe link 42 reaches, pulling shift fork outer rocker arm 7 and shift fork inner rocker arm 6 rotate, shift fork inner rocker arm 6 is stirred shift fork 8 and is moved and promote after along the sliding thick sticks 4 of shift forks and move behind the sliding gear collar 27, break away from direct-connected transmission for two 28 and three 24, two 28 takeoff outputs rotate transmission shaft 26 speedups by the 3 ingear transmission shaft front gears 2 of driving gear on it, transmission shaft backgear 25 on the transmission shaft 26 again by with three 24 on phantom gear 10 engagement three 24 speedups are rotated, it is less to be implemented in accelerator open degree, under the lower situation of two 28 rotating speeds, obtain higher rotation speed for three 24, thereby vehicle still can be run at high speed under little throttle, reach the fuel-economizing purpose.Conventional in conjunction with existing system of vehicle transmission design, embodiment as fuel saving speed variator of automobile of the present invention, the fuel-economizing shelves are through transmission shaft front gear 2 and transmission shaft backgear 25 engaged transmission, can be when three 24 to obtain rotating speed be 1.3～2.7 times of 2 28 rotating speeds, throttle limiting stopper 37 on the throttle lever 39 is arranged on the throttle position that the limiting engine rotating speed is three 24 rotating speeds and three 28 revolution ratio numbers corresponding 10/13～10/27, that is to say, when for example three 24 rotating speeds are 1.3 times of two 28 rotating speeds, the position of throttle limiting stopper 37 on throttle lever 39 is 39 times pan position 10/13 places of two 28 throttle levers when obtaining identical high rotating speed with three 24 of three 24 direct-connected transmissions, accelerator open degree reduces, by that analogy.

Although the utility model fuel saving speed variator of automobile is provided with throttle limiting stopper 37 to guarantee restriction throttle maximum opening under fuel-economizing shelves mode of operation, play the effect of speed limit safety guard-safeguard, as preferred embodiment, prevent three 24 overspeed operations more reliably, preferably as depicted in figs. 1 and 2, also be provided with the speed limit safety device of a centrifugal braking mechanism: speed limit safety shell 13 is sleeved on three 24 back segments that stretch out from fuel-economizing shelves shell 11, and captive joint with fuel-economizing shelves shell 11, for example bolt connects; Centrifugal brake bar 20 is fixed in and is sleeved on three 24 three arbor wheel dishes 16 on the latter end spline, be fixed on two centrifugal brake facing registration masts 19 on the centrifugal brake bar 20 centrifugal brake facing 32 is housed respectively, centrifugal brake facing 32 outsides are centrifugal friction sheets 31, also be mounted with a centrifugal brake facing return spring 18 on each centrifugal brake facing 32, centrifugal brake facing return spring 18 other ends are articulated on the return spring biasing post 17; Two assistant's brake facings 14 are equipped with in centrifugal brake bar 20 outsides, the parking brake sheet 14 inboard parking brake friction linings 35 that fixedly are equipped with, parking brake sheet 14 lower ends are set on the parking brake sheet registration mast 21 and are mounted with a parking brake sheet return spring 22 jointly, parking brake sheet registration mast 21 is fixed on the speed limit safety shell 13, parking brake sheet 14 upper end a slices fixedly are equipped with parking brake steel rope 34, parking brake line spring 33 fixedly is housed on another sheet, and parking brake steel rope 34 is for being installed in the parking brake line spring 33.This speed limit safety device is housed, reach maybe will surpass specified maximum speed of revolution the time when three 24, centrifugal brake facing 32 under centrifugal action with the 13 inwall swellings of speed limit safety shell, the friction force braking that produces by centrifugal friction sheet 31 can not exceed the speed limit for three 24, and the assurance driving safety protects machine not to be destroyed simultaneously; When three 24 speed drops to or when being lower than specified maximum speed of revolution, centrifugal brake facing 32 rotates around centrifugal brake facing registration mast 19 and to shrink under the pulling force traction of centrifugal brake facing return spring 18, breaks away from speed limit safety shell 13 inwalls, no longer produces friction drag.Under the situation that particularly urgent hypervelocity driving takes place, chaufeur can also utilize parking brake steel rope 34 to enable the centrifugal brake bar 20 of parking brake sheet 14 auxiliary brakings simultaneously, prevent three 24 overspeed operations more timely and effectively, parking brake sheet return is set places restrictions on contact 23 and can prevent that excessively return and centrifugal brake bar 20 produce friction again to parking brake sheet 14 under parking brake sheet return spring 22 pulling force.

As embodiment, as shown in Figure 1, vehicle autometer worm gear 12 can be sleeved on three 24 stage casings, and return spring biasing post 17 is convenient to regulate the tension force of centrifugal brake facing return spring 18, and universal-joint hold-down bolt 15 is convenient to centrifugal brake bar 20 is installed on three arbor wheel dishes 16 and is connected with universal-joint.

Claims

1, a kind of fuel saving speed variator of automobile that increases fuel-economizing shelves and operating control on existing Automotive transmission is characterized in that:

A. said fuel-economizing shelves are at existing Automotive transmission shell (1) aft end face captive joint fuel-economizing shelves shells (11), coincideing by two needle bearings (5) in interior two (28) rear ends of fuel-economizing shelves shell (11) is provided with three (24), in tween drive shaft (30) rear end by the identical transmission shaft (26) that is provided with of tween drive shaft needle bearing (29); The driving gear (3) of backside tape disjunctor spline fixedly is housed with flat key on two (28) back segments, and driving gear (3) is constant-mesh with the transmission shaft front gear (2) that is fixed on the transmission shaft (26) with flat key; With flat key be fixed on the transmission shaft (26) transmission shaft backgear (25) be sleeved on three phantom gears (10) on (24) and be constant-mesh, phantom gear (10) can be gone up friction speed three (24) and freely rotate; Three (24) leading portion spline upper sleeves are equipped with a sliding gear collar (27), a shift fork (8) that is sleeved on the sliding thick stick of shift fork (4) is arranged on the sliding gear collar (27), be equipped with on the shift fork (8) one with the overhanging shift fork inner rocker arm (6) that is connected at the shift fork outer rocker arm (7) of fuel-economizing transmission case cover (9);

B. said operating control is by the Das Gaspedal (36) that is installed on the operator's compartment base plate (41), throttle lever (38), fuel-economizing shelves joystick (40) and pipe link (42) are formed, throttle lever (39) is connected with Das Gaspedal (36), throttle lever (39) is provided with throttle limiting stopper (37), throttle lever (38) front end is positioned at throttle limiting stopper (37) below, throttle lever (38) rear end is that pin is connected with fuel-economizing shelves joystick (40) hypomere, fuel-economizing shelves joystick (40) lower end is that pin is connected with pipe link (42) front end, and pipe link (42) rear end is connected for pin with said shift fork outer rocker arm (7).

2, according to the described fuel saving speed variator of automobile of claim 1, it is characterized in that the fuel-economizing shelves are through transmission shaft front gear (2) and transmission shaft backgear (25) engaged transmission, three (24) obtain rotating speed is 1.3～2.7 times of two (28) rotating speeds, the throttle limiting stopper (37) on the throttle lever (39) be arranged on the limiting engine rotating speed for the throttle position of three (24) rotating speeds and two (28) revolution ratio numbers corresponding 10/13～10/27 on.

3, according to claim 1 or 2 described fuel saving speed variator of automobile, it is characterized in that also being provided with the speed limit safety device of a centrifugal braking mechanism: speed limit safety shell (13) is sleeved on three (24) back segments that stretch out from fuel-economizing shelves shell (11), and captives joint with fuel-economizing shelves shell (11); Centrifugal brake bar (20) is fixed on the three arbor wheel dishes (16) that are sleeved on three (24) latter end splines, be fixed on two the centrifugal brake facing registration masts (19) on the centrifugal brake bar (20) centrifugal brake facing (32) is housed respectively, centrifugal brake facing (32) outside is centrifugal friction sheet (31), also be mounted with a centrifugal brake facing return spring (18) on each centrifugal brake facing (32), centrifugal brake facing return spring (18) other end is articulated on the return spring biasing post (17); The two assistants sheet (14) of stopping is equipped with in centrifugal brake bar (20) outside, the inboard parking brake friction lining (35) that fixedly is equipped with of parking brake sheet (14), parking brake sheet (14) lower end is set in parking brake sheet registration mast (21) and goes up and be mounted with jointly a parking brake sheet return spring (22), parking brake sheet registration mast (21) is fixed on the speed limit safety shell (13), parking brake sheet (14) upper end a slice fixedly is equipped with parking brake steel rope (34), parking brake line spring (33) fixedly is housed on another sheet, and parking brake steel rope (34) is for being installed in the parking brake line spring (33).