CN201268224Y - Speed variator of tractor - Google Patents
Speed variator of tractor Download PDFInfo
- Publication number
- CN201268224Y CN201268224Y CNU2008200243516U CN200820024351U CN201268224Y CN 201268224 Y CN201268224 Y CN 201268224Y CN U2008200243516 U CNU2008200243516 U CN U2008200243516U CN 200820024351 U CN200820024351 U CN 200820024351U CN 201268224 Y CN201268224 Y CN 201268224Y
- Authority
- CN
- China
- Prior art keywords
- speed change
- gear
- shifting block
- main transformer
- slide bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model discloses a speed changing device for a tractor, which comprises a gearbox body, a front cover arranged on the upper part of the gearbox body, a side operation box body arranged at the right side of the gearbox body, a main speed-change operating mechanism and an auxiliary speed-change operating mechanism, wherein the main speed-change operating mechanism is arranged on the side operation box body, and the auxiliary speed-change operating mechanism is arranged on the front cover; wherein the auxiliary speed-change operating mechanism comprises a first auxiliary speed-change operating mechanism and a second auxiliary speed-change operating mechanism; the first auxiliary speed-change operating mechanism is arranged at the right side of the front cover, and the second auxiliary speed-change operating mechanism is arranged at the left side of the front cover. The utility model has the advantages of convenient operation, good sealing performance and more reasonable arrangement.
Description
Technical field
The utility model relates to trac. transmission system technical field, relates in particular to a kind of transmission system of belt-driving trac..
Background technology
The gearshift of 12+2 skin block strap drive trac. in the market, its main transformer speed steering unit and secondary selector gear all are installed in the protecgulum right side of the gearbox body of trac., the right side of gearbox body is equipped with a side and handles casing, this side panel block body be positioned at protecgulum below, be used to hold main transformer ski-running bar, secondary speed change slide bar and the shifting block mounted thereto that stretches out from gearbox body, major and minor gear-change hand lever is then handled the casing from this side and is stretched out, and passes above-mentioned protecgulum.Adopt such structure, the problem of existence is: main transformer speed joystick and secondary gear-change hand lever hypotelorism, handle inconvenience, and secondary speed-changing mechanism is difficult to sealing; Simultaneously owing to side manipulation casing is fixed on the housing of gearbox body, can not eliminate assembly clearance fully between the upper surface of side panel block and the protecgulum, so sleety weather, rainwater can enter gearbox body, cause back axle lubricant effect variation, reduce the service life of trac..
The utility model content
Technical problem to be solved in the utility model provides a kind of control comfort, good airproof performance, the more rational trac. transmission system of layout.
For solving the problems of the technologies described above, the technical solution of the utility model is: comprise gearbox body, be installed on the protecgulum on described gearbox body top, the side that is installed on described gearbox body right side is handled casing, and main transformer speed steering unit and secondary selector gear, described main transformer speed steering unit is installed on described side and handles on the casing, and described secondary selector gear is installed on the described protecgulum.
As a kind of preferred embodiment, described main transformer speed steering unit comprises main transformer quick change retaining slide bar, and described main transformer quick change retaining slide bar stretches into described side from described gearbox body and handles the casing; Be installed on the shifting block on the described main transformer quick change retaining slide bar; Be installed on the guide plate on the described side manipulation casing, be installed on the speed change pole socket on the described guide plate; Be installed on the cone-shaped spring in the described speed change pole socket; Be installed on stop screw and seal closure on the described speed change pole socket; Main transformer speed joystick, described main transformer speed joystick is supported on the described cone-shaped spring, and the one end is connected with described shifting block, and the other end stretches out from seal closure.
As a kind of preferred embodiment, described secondary selector gear comprises the first secondary selector gear and the second secondary selector gear, the described first secondary selector gear places the right side of described protecgulum, and the described second secondary selector gear places the left side of described protecgulum.
As a kind of improvement, the described first secondary selector gear comprises the first secondary speed change slide bar and the first secondary gear-change hand lever, the described first secondary speed change slide bar is provided with the first secondary gear shift fork, the first secondary speed change rotating shaft is installed on the described gearbox body protecgulum, the described first secondary gear-change hand lever is connected in the upper end of this first secondary speed change rotating shaft, the lower end of the described first secondary speed change rotating shaft is fixed with the first secondary angular lever, the first secondary speed change shifting block is installed on the described first secondary angular lever, and the described first secondary speed change shifting block falls into the groove that is arranged on the described first secondary gear shift fork.
As a kind of improvement, the described second secondary selector gear comprises the second secondary speed change slide bar and the second secondary gear-change hand lever, the described second secondary speed change slide bar is provided with the second secondary gear shift fork and the second secondary speed change shifting block, the second secondary speed change rotating shaft is installed on the described gearbox body protecgulum, the described second secondary gear-change hand lever is connected in the upper end of this second secondary speed change rotating shaft, the lower end of the described second secondary speed change rotating shaft is fixed with the second secondary angular lever, the second secondary speed change shifting block is installed on the described second secondary angular lever, the described second secondary speed change shifting block falls into the groove that is arranged on the second secondary speed change shifting block, and the described second secondary speed change shifting block can drive the described second secondary gear shift fork motion.
Owing to adopted technique scheme, the beneficial effects of the utility model are:
Because described main transformer speed steering unit is installed on described side and handles on the casing, described secondary selector gear is installed on the described protecgulum, becomes convenient so main transformer speed joystick and secondary gear-change hand lever apart from increasing, are handled, simultaneously, the sealing of major and minor speed-changing mechanism guarantees easily.Because the gap that side is handled between casing and the protecgulum no longer exists,, rainwater also obtained solution in addition so entering the problem of gearbox body.
Description of drawings
Fig. 1 is the integral structure scheme drawing of the utility model embodiment;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is a main transformer speed steering unit structural representation among the utility model embodiment;
Fig. 4 is the birds-eye view of Fig. 3;
Fig. 5 is the first secondary selector gear structural representation of the utility model embodiment;
Fig. 6 is the birds-eye view of Fig. 5;
Fig. 7 is the second secondary selector gear structural representation of the utility model embodiment;
Fig. 8 is the birds-eye view of Fig. 7.
The specific embodiment
Shown in Fig. 1 and Fig. 2 were common, the trac. transmission system comprised gearbox body 5, was installed on the protecgulum 3 above the gearbox body 5, and the side that is installed on the gearbox body right side is handled casing 4, and main transformer speed steering unit 1 and secondary selector gear.Main transformer speed steering unit 1 is installed on side and handles on the casing 4, and secondary selector gear is installed on the protecgulum 3.
Wherein, secondary selector gear comprises that the first secondary selector gear 21 and second secondary selector gear 22, the first secondary selector gears 21 place the right side of protecgulum 3, and the second secondary selector gear 22 places the left side of protecgulum 3.
Shown in Fig. 3 and Fig. 4 are common, main transformer speed steering unit 1 comprises main transformer quick change retaining slide bar 12, be installed on the shifting block 14 on the main transformer quick change retaining slide bar 12, be installed on the guide plate 15 on the side manipulation casing 4, be installed on the speed change pole socket 16 on the guide plate 15, be installed on the cone-shaped spring 19 in the speed change pole socket 16, be installed on stop screw 17 and seal closure 18 on the speed change pole socket 16, and main transformer speed joystick 13.
Wherein, main transformer speed joystick 13 is supported on the cone-shaped spring 19, handles the casing 4 from side upwards to stretch, and passes guide plate 15, speed change pole socket 16, stretches out in the self sealss cover 18.Stop screw 17 carries out spacing to it; Seal closure 18 plays sealing function, prevents rainwater approaching side manipulation casing 4.
In the present embodiment, main transformer quick change retaining slide bar 12 keeps off, reverses gear by two, and slide bar and keeps off, three retaining slide bars constitute, the end that two retainings, the slide bar and that reverses gear keep off, three retaining slide bars are positioned at side manipulation casing 4 is equipped with shifting block 14, and this shifting block 14 is connected with the bulb that is located at above-mentioned main transformer speed joystick 13 lower ends.
Handling main transformer speed joystick 13 realizes two retainings or reverses gear by the head of stirring on two retainings, the slide bar that reverses gear that pulls out; Handle main transformer speed joystick 13 and realize a retaining or three retainings by the head that pulls out of stirring a retaining, three retaining slide bars.
Shown in Fig. 5 and Fig. 6 are common, the first secondary selector gear 21 comprises the first secondary speed change slide bar 211 and the first secondary gear-change hand lever 212, the first secondary speed change slide bar 211 is provided with the first secondary gear shift fork 213, the first secondary speed change rotating shaft 214 is installed on the protecgulum 3 of gearbox body, the first secondary gear-change hand lever 212 is connected in the upper end of this first secondary speed change rotating shaft 214 by flat key and bolt, the lower end of the first secondary speed change rotating shaft 214 is fixed with the first secondary angular lever 215, the first secondary speed change shifting block 216 is installed on the first secondary angular lever 215, and this first secondary speed change shifting block 216 falls into the groove that is arranged on the first secondary gear shift fork 213.In the present embodiment, the first secondary speed change rotating shaft 214 and the first secondary angular lever 215 are designed to one.
The first secondary gear-change hand lever 212 is rotated in front and back, stirs the first secondary gear shift fork 213 by the first secondary speed change shifting block 216, can realize low, high gear conversion.
Shown in Fig. 7 and Fig. 8 are common, the second secondary selector gear 22 comprises the second secondary speed change slide bar 221 and the second secondary gear-change hand lever 222, the second secondary speed change slide bar 221 is provided with the second secondary gear shift fork 223 and the second secondary speed change shifting block 227, the second secondary speed change rotating shaft 224 is installed on the protecgulum 3 of gearbox body, the second secondary gear-change hand lever 222 is connected in the upper end of this second secondary speed change rotating shaft 224 by flat key and bolt, the lower end of the second secondary speed change rotating shaft 224 is fixed with the second secondary angular lever 225, the second secondary speed change shifting block 226 is installed on the second secondary angular lever 225, this second secondary speed change shifting block 226 falls into the groove that is arranged on the second secondary speed change shifting block 227, and the second secondary speed change shifting block 227 can drive second secondary gear shift fork 223 motions.In the present embodiment, the second secondary speed change rotating shaft 224 and the second secondary angular lever 225 are designed to one.
The second secondary gear-change hand lever 222 is rotated in front and back, stirs the second secondary speed change shifting block 227 by the second secondary speed change shifting block 226, and then promotes the second secondary gear shift fork 223, can realize soon, keep off slowly conversion.
The array mode of present embodiment gear can be expressed as (3 * 2+1) * 2: can realize 6 D Drives and 1 reverse gear by first secondary selector gear 21, carry out shelves and 2 reverse gears, i.e. 12+2 gear array mode before can realizing 12 by the second secondary selector gear 22.
Claims (5)
1. trac. transmission system, comprise gearbox body (5), be installed on the protecgulum (3) on described gearbox body (5) top, the side that is installed on described gearbox body right side is handled casing (4), and main transformer speed steering unit (1) and secondary selector gear, it is characterized in that: described main transformer speed steering unit (1) is installed on described side and handles on the casing (4), and described secondary selector gear is installed on the described protecgulum (3).
2. trac. transmission system as claimed in claim 1 is characterized in that: described main transformer speed steering unit (1) comprises main transformer quick change retaining slide bar (12), and described main transformer quick change retaining slide bar (12) stretches into described side from described gearbox body (5) and handles the casing (4); Be installed on the shifting block (14) on the described main transformer quick change retaining slide bar (12); Be installed on the guide plate (15) on the described side manipulation casing (4); Be installed on the speed change pole socket (16) on the described guide plate (15); Be installed on the cone-shaped spring (19) in the described speed change pole socket (16); Be installed on stop screw (17) and seal closure (18) on the described speed change pole socket (16); Main transformer speed joystick (13), described main transformer speed joystick (13) is supported on the described cone-shaped spring (19), and the one end is connected with described shifting block (14), and the other end stretches out from seal closure (18).
3. trac. transmission system as claimed in claim 1, it is characterized in that: described secondary selector gear comprises the first secondary selector gear (21) and the second secondary selector gear (22), the described first secondary selector gear (21) places the right side of described protecgulum (3), and the described second secondary selector gear (22) places the left side of described protecgulum (3).
4. trac. transmission system as claimed in claim 3, it is characterized in that: the described first secondary selector gear (21) comprises the first secondary speed change slide bar (211) and the first secondary gear-change hand lever (212), the described first secondary speed change slide bar (211) is provided with the first secondary gear shift fork (213), the first secondary speed change rotating shaft (214) is installed on the described protecgulum (3), the described first secondary gear-change hand lever (212) is connected in the upper end of this first secondary speed change rotating shaft (214), the lower end of the described first secondary speed change rotating shaft (214) is fixed with the first secondary angular lever (215), the first secondary speed change shifting block (216) is installed on the described first secondary angular lever (215), and the described first secondary speed change shifting block (216) falls into the groove that is arranged on the described first secondary gear shift fork (213).
5. trac. transmission system as claimed in claim 3, it is characterized in that: the described second secondary selector gear (22) comprises the second secondary speed change slide bar (221) and the second secondary gear-change hand lever (222), the described second secondary speed change slide bar (221) is provided with the second secondary gear shift fork (223) and the second secondary speed change shifting block (227), the second secondary speed change rotating shaft (224) is installed on the described protecgulum (3), the described second secondary gear-change hand lever (222) is connected in the upper end of this second secondary speed change rotating shaft (224), the lower end of the described second secondary speed change rotating shaft (224) is fixed with the second secondary angular lever (225), the second secondary speed change shifting block (226) is installed on the described second secondary angular lever (225), the described second secondary speed change shifting block (226) falls into the groove that is arranged on the second secondary speed change shifting block (227), and the described second secondary speed change shifting block (227) can drive the motion of the described second secondary gear shift fork (223).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200243516U CN201268224Y (en) | 2008-06-16 | 2008-06-16 | Speed variator of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200243516U CN201268224Y (en) | 2008-06-16 | 2008-06-16 | Speed variator of tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201268224Y true CN201268224Y (en) | 2009-07-08 |
Family
ID=40840812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200243516U Expired - Fee Related CN201268224Y (en) | 2008-06-16 | 2008-06-16 | Speed variator of tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201268224Y (en) |
-
2008
- 2008-06-16 CN CNU2008200243516U patent/CN201268224Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20110616 |