CN2170228Y

CN2170228Y - Tilted mechanical speed variator for automobile

Info

Publication number: CN2170228Y
Application number: CN 93238659
Authority: CN
Inventors: 罗征林; 任义荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-13
Filing date: 1993-05-04
Publication date: 1994-06-29
Anticipated expiration: 2003-05-04

Abstract

The utility model relates to a remote-manipulated mechanical speed changer adopted in a car. The utility model is characterized in that the other end of a speed changing pull rod is directly hinged with one end of a speed changing lever, and the speed changing pull rod is perpendicular to the speed changing lever; the other end of the speed changing lever is arranged in a gearbox; a lug boss on an outer casing of a clutch rotates counterclockwise or clockwise in the range of 30 DEG to 50 DEG along the Y axis of the shaft axis of a main shaft; the gearbox is obliquely assembled and connected by rotating counterclockwise or clockwise in the range of 30 DEG to 50 DEG relative to the Y axis of the shaft axis of the main shaft of the outer casing of the clutch. The utility model is suitable for buses, long-distance coaches and short-head and flat-head trucks.

Description

Tilted mechanical speed variator for automobile

The utility model relates to the mechanical transmission that a kind of vehicle telematic is handled.

At present, the remote operated mechanical transmission that on automobile, adopts, because gear box position is far away from position of driver, extensively adopt as Fig. 1, the change-speed box of structure shown in Figure 2, its structure is: gear-change hand lever 2 and speed change pull bar 3 hinge connection that gear change hand lever 1 is housed, speed change pull bar 3 other ends and front and back gear selecting drive link 6 hinge connection, the other end of front and back gear selecting drive link 6 and an end of gear shift arm 5 join with speed change control arm 4 one ends hinge respectively, the other end of gear shift arm 5 is installed on the support 10, speed change control arm 4 one ends are installed on the support 11, the other end passes joint 13 and connects with shifter bar 9, strut bar 7 one ends are loaded in the joint 13, the other end is loaded on the outstanding support 12, shifter bar 9 one ends are packed change speed gear box 8 into to realize variable speed operation, in this structure, the vertical installation with clutch outer member (not marking among the figure) of change speed gear box 8 connects, in the structure since between speed change control arm 4 and the shifter bar 9 structure have a certain degree, thereby the application force of 4 pairs of shifter bars 9 of speed change control arm can produce bigger horizontal component of force (harmful component), promptly exist than large pressure angle, this makes mechanical efficiency low, this component also can cause the engagement of change speed gear box inner gear bad, increase wearing and tearing, easily cause gear tooth breakage; The steering unit complexity of this change-speed box, the many and poor rigidity of connector, maneuvering performance are poor, will break down after using the short period, and maintenance load is big.

The purpose of this utility model be to overcome above-mentioned weak point of the prior art and provide that a kind of transmission control is simple, control arm is to the mechanical transmission that harmful component is little and maneuvering performance is good of shifter bar.

The purpose of this utility model can reach by following measure: the utility model comprises gear-change hand lever and the speed change pull bar one end hinge connection of being with gear change hand lever, it is characterized in that direct and shifter bar one end hinge connection with the other end of speed change pull bar, and the speed change pull bar is vertical with shifter bar, the shifter bar other end change speed gear box of packing into, partly along its spindle axis line Y-axis conter clockwise or 30 ° of-50 ° of making of right-hand revolution, and the relative clutch outer member spindle axis of change speed gear box line Y-axis conter clockwise or 30 °-50 ° tilting assemblings of right-hand revolution connect with the boss that connects with change speed gear box on the clutch outer member.

Fig. 1 is the existing structure schematic front view;

Fig. 2 is the existing structure diagrammatic top view;

Fig. 3 is the utility model structural representation front view;

Fig. 4 is that the A of Fig. 3 is to partial view;

Fig. 5 is the utility model clutch outer member end face enlarged front view.

The utility model is described in further detail below in conjunction with (accompanying drawing) embodiment: in Fig. 3, to have the end hinge connection of the end of gear-change hand lever 15 of gear change hand lever 14 and speed change pull bar 16 and be installed in the bearing 21, with the other end of speed change pull bar 16 directly and an end hinge-coupled of shifter bar 18, and speed change pull bar 16 is vertical with shifter bar 18, the other end of shifter bar 18 is packed change speed gear box 17 into to realize variable speed operation, shifter bar 18 axial lines are vertical with the X-axis of change speed gear box 17 spindle axis lines, the boss 20 that connects with change speed gear box on the clutch outer member is rotated 30 ° of-50 ° of making along its spindle axis line Y-axis anticlockwise direction, and 30 °-50 ° tilting assemblings of the Y-axis anticlockwise direction of change speed gear box 17 relative clutch outer member 19 spindle axis lines rotation connect, if formula mechanical control mechanism is put then for 30 °-50 ° of right-hand revolutions in the right side, so promptly constitute the utility model design-calculated change-speed box.

Clutch outer member shown in Figure 5 rotates 30 ° of-50 ° of manufacturings with its boss 20 that change speed gear box 17 is installed along clutch outer member spindle axis Y-axis anticlockwise direction, if formula mechanical control change-speed box is put on the right side, and then 30 ° of-50 ° of manufacturings of right-hand revolution.

Principle of work of the present utility model is: handle gear-change hand lever 15, gear-change hand lever 15 promotes or pulling speed change pull bar 16, and speed change pull bar 16 promotes or spurs shifter bar 18, and shifter bar 18 can be realized variable speed operation like this.

The utility model has following advantage compared to existing technology:

1. because speed-changing pull rod directly connects with gear lever, make operating mechanism simple, improved the rigidity of mechanism;

2. because the relative clutch outer member of change speed gear box takes tilting assembling to connect, and the speed change pull bar is vertical with shifter bar, thereby make the speed change pull bar be unlikely the harmful component of generation level to the effect of shifter bar, promptly reduced the angle of obliquity in the steering unit, can improve the maneuvering performance of mechanism greatly, can reduce wear during operation, damage, reduce maintenance cost.

Claims

1, a kind of automobile mechanical transmission, comprise gear-change hand lever and the speed change pull bar one end hinge connection of being with gear change hand lever, it is characterized in that direct and shifter bar one end hinge connection with the other end of speed change pull bar, and the speed change pull bar is vertical with shifter bar, the shifter bar other end change speed gear box of packing into, partly along 30 °-50 ° of its spindle axis line Y-axis conter clockwise or right-hand revolutions, and the relative clutch outer member spindle axis of change speed gear box line Y-axis conter clockwise or 30 °-50 ° tilting assemblings of right-hand revolution connect with the boss that connects with change speed gear box on the clutch outer member.