CN201059351Y - Lever type single-rod gear box operating mechanism - Google Patents
Lever type single-rod gear box operating mechanism Download PDFInfo
- Publication number
- CN201059351Y CN201059351Y CNU2007200232911U CN200720023291U CN201059351Y CN 201059351 Y CN201059351 Y CN 201059351Y CN U2007200232911 U CNU2007200232911 U CN U2007200232911U CN 200720023291 U CN200720023291 U CN 200720023291U CN 201059351 Y CN201059351 Y CN 201059351Y
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- CN
- China
- Prior art keywords
- lever
- speed change
- swing arm
- driving
- reversing
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- Expired - Lifetime
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Abstract
The utility model relates to a speed change box operation mechanism of a wheel loader, providing a levertype single pole speed change box operation mechanism and comprising an operation handle lever, a bracket, a driving and reversing lever and a speed change lever, wherein, the handle lever is arranged on the bracket; the upper end of the driving and reversing lever is connected with the bracket and the lower end of the lower end of the driving and reversing lever is provided with a swinging arm on which a joint bearing is arranged; the upper end of the speed change lever is connected with the operation handle lever and the lower end of the speed change lever is connected with a rocking arm switching mechanism. In the process of operation, the driving and reversing lever is driven to rotate by the back and forth swinging of the operation handle lever, a driving and reversing valve of the speed change box is driven by the swinging arm of the lower end of the driving and reversing lever and then the driving and reversing control is realized; the up and down movement of the speed change lever is driven by the up and down swinging of the operation handle lever, a speed change valve arranged on the speed change box is driven by the lower end of the swinging arm switching mechanism and the speed change control is realized. Due to the adoption of coaxial mechanic connecting lever operation, the utility model is of simple structure, time and labor saving, convenience for operation and improvement of operation efficiency and operation mechanism reliability.
Description
Technical field
The utility model relates to the gearbox operating mechanism of wheel loader.
Background technique
Gearbox operating mechanism on the wheel loader is realized the advance and retreat and the speed changing function of loader by the control gearbox.The gearbox operating mechanism that uses is advance and retreat valve and a speed change valve of controlling gearbox by two operating handles respectively at present.The operator needs the direction of two operating handles of frequent conversion in the course of the work, by 4 gears of the incompatible realization loader of the set of locations of two operating handles.Because the operator generally uses left hand to handle gearbox operating mechanism and steering wheel simultaneously, loaded down with trivial details like this maneuverability pattern makes the operator feel very inconvenient, the travelling comfort that influence is handled.Because it is loaded down with trivial details manipulation can't realize the fast moving of loader in non-charging process, therefore very big in addition to the operating efficiency influence, also be a high important reasons of present loader oil consumption.
Summary of the invention
The utility model is at the deficiencies in the prior art, and a kind of Lever type single pole gearbox operating mechanism of simple in structure, easy operating is provided.
The utility model adopts following solution:
Lever type single pole gearbox operating mechanism comprises Joystick bar, support, moving rod and speed change lever, and the Joystick bar is rack-mount; The upper end of moving rod is connected with support, and the lower end is equipped with swing arm, and joint shaft bearing is installed in the swing arm; The upper end of speed change lever is connected with the Joystick bar, and the lower end is connected with rocking arm switching mechanism.
Rocking arm switching mechanism comprises mandrel, swing arm cover, fixed plate, left swing arm and right swing arm, the swing arm cover is installed on the fixed plate, mandrel is installed in the swing arm cover, left side swing arm is installed in the left end of mandrel, right swing arm is installed in the right-hand member of mandrel, in the swing arm of a left side left joint shaft bearing is installed, right joint shaft bearing is installed on the right swing arm.
During work, the joint shaft bearing in the swing arm of moving rod lower end is connected with the advance and retreat valve of loading machine gearbox, and the rocking arm switching mechanism of speed change lever lower end is connected with the speed change valve of loading machine gearbox.Forward and backward swing by the Joystick bar drives the moving rod rotation, and then by the advance and retreat valve on the end fixed swing arm drive of the moving rod gearbox, to realize advance and retreat control; By upper and lower the moving of upper and lower swing drive speed change lever of Joystick bar, and then by the speed change valve on the rocking arm switching mechanism drive gearbox of lower end, to realize speed Control.
The utility model adopts the mechanical linkage of coaxial-type to handle, and is simple in structure, time saving and energy saving, both made things convenient for operation, improved operating efficiency again, simultaneously because of the simplification of handling, improved the reliability of operating mechanism greatly.
Description of drawings
Fig. 1 is a STRUCTURE DECOMPOSITION schematic representation of the present utility model.
Fig. 2 is the STRUCTURE DECOMPOSITION schematic representation of rocking arm switching mechanism in the utility model.
Wherein: 1, Joystick bar, 2, bearing, 3, support, 4, moving rod, 5, lining, 6, bearing bolt, 7, joint shaft bearing, 8, swing arm, 9, draw fork, 10, bearing pin, 11, bolt, 12, lining, 13, setting sleeve, 14, speed change lever, 15, the left bearing bolt, 16, left joint shaft bearing, 17, left swing arm, 18, left bearing, 19, mandrel, 20, the swing arm cover, 21, fixed plate, 22, right bearing, 23, right swing arm, 24, right joint shaft bearing, 25, the right bearing bolt.
Embodiment
Fig. 1 has provided STRUCTURE DECOMPOSITION schematic representation of the present utility model.Joystick bar 1 is lever construction, and the front portion is a handle, and bearing 2 is equipped with at the middle part, and is installed in the slot on the support 3 by bolt 11, and the rear end is equipped with by bearing pin 10 and draws fork 9.The upper end of moving rod 4 is fixedly connected in the pivoted housing of support 3, and the lower end is equipped with swing arm 8 by lining 5.Joint shaft bearing 7 is fixed in the swing arm 8 by bearing bolt 6, and joint shaft bearing 7 is used to connect the advance and retreat valve of loading machine gearbox.Speed change lever 14 two ends all are threaded, after passing moving rod 4, be fixed in the setting sleeve 13 by lining 12 and moving rod 4, draw in the fork 9 by being threaded onto speed change lever 14 upper ends, in the left joint shaft bearing 16 of lower end by the rocking arm switching mechanism that is threaded onto Fig. 2 and provides.
As shown in Figure 2; rocking arm switching mechanism comprises mandrel 19, swing arm cover 20, fixed plate 21, left swing arm 17 and right swing arm 23; swing arm cover 20 is welded on the fixed plate 21; mandrel 19 is installed in the swing arm cover 20 by left bearing 18 and right bearing 22; left swing arm 17 is welded on the left end of mandrel 19; right swing arm 23 is welded on the right-hand member of mandrel 19, by left bearing bolt 15 left joint shaft bearing 16 is installed in the left swing arm 17, by right bearing bolt 25 right joint shaft bearing 24 is installed on the right swing arm 23.Right joint shaft bearing 24 is connected to the speed change valve of loading machine gearbox.The lower end of speed change lever 14 is by being threaded among a left side joint shaft bearing 16 and Fig. 1.A whole set of rocking arm switching mechanism by fixed plate 21 be fixed on loader cab below.
During use, Joystick bar 1 both can also can swing up and down around support 3 around setting sleeve 13 swings.The former drives moving rod 4 and swing arm 8 rotations, thus the advance and retreat valve of control gearbox; The latter drives and draws fork 9 and speed change lever 14 to move up and down, after the conversion by left swing arm 17 among Fig. 2 and right swing arm 23, thus the control speed change valve.Maximum characteristics of the present utility model are exactly to adopt the mechanical linkage of coaxial-type to handle.
Claims (2)
1. a Lever type single pole gearbox operating mechanism comprises Joystick bar, support, moving rod and speed change lever, and it is characterized in that: the Joystick bar is rack-mount; The upper end of moving rod is connected with support, and the lower end is equipped with swing arm, and joint shaft bearing is installed in the swing arm; The upper end of speed change lever is connected with the Joystick bar, and the lower end is connected with rocking arm switching mechanism.
2. Lever type single pole gearbox operating mechanism according to claim 1, it is characterized in that: described rocking arm switching mechanism comprises mandrel, swing arm cover, fixed plate, left swing arm and right swing arm, the swing arm cover is installed on the fixed plate, mandrel is installed in the swing arm cover, left side swing arm is installed in the left end of mandrel, right swing arm is installed in the right-hand member of mandrel, and left joint shaft bearing is installed in the left swing arm, and right joint shaft bearing is installed on the right swing arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200232911U CN201059351Y (en) | 2007-06-21 | 2007-06-21 | Lever type single-rod gear box operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200232911U CN201059351Y (en) | 2007-06-21 | 2007-06-21 | Lever type single-rod gear box operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201059351Y true CN201059351Y (en) | 2008-05-14 |
Family
ID=39407821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200232911U Expired - Lifetime CN201059351Y (en) | 2007-06-21 | 2007-06-21 | Lever type single-rod gear box operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201059351Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009056007A1 (en) * | 2007-10-31 | 2009-05-07 | Shandong Sem Machinery Co., Ltd | Control device for machine, method for operating the same and machine comprising the same |
-
2007
- 2007-06-21 CN CNU2007200232911U patent/CN201059351Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009056007A1 (en) * | 2007-10-31 | 2009-05-07 | Shandong Sem Machinery Co., Ltd | Control device for machine, method for operating the same and machine comprising the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CATERPILLAR (QINGZHOU) CO., LTD. Free format text: FORMER NAME: SHANDONG SEM MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 262500 Qingzhou South Road, Shandong, No. 12999 Patentee after: CATERPILLAR (QINGZHOU) LTD. Address before: 262500 Shandong city of Qingzhou province yunmenshan Street No. 1 Patentee before: Shandong SEM Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080514 |