CN203120416U - Crawler belt speed changing box transmission steering device - Google Patents
Crawler belt speed changing box transmission steering device Download PDFInfo
- Publication number
- CN203120416U CN203120416U CN 201320027235 CN201320027235U CN203120416U CN 203120416 U CN203120416 U CN 203120416U CN 201320027235 CN201320027235 CN 201320027235 CN 201320027235 U CN201320027235 U CN 201320027235U CN 203120416 U CN203120416 U CN 203120416U
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- gear
- crawler belt
- central shaft
- central
- speed changing
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Abstract
The utility model discloses a crawler belt speed changing box transmission steering device suitable for walking and turning in a paddy field. The crawler belt speed changing box transmission steering device comprises a central shaft (14) arranged in a crawler belt speed changing box and a central gear (3) arranged on the middle section of the central shaft (14). The crawler belt speed changing box transmission steering device is characterized in that steering braking mechanisms are symmetrically arranged on the central shaft (14) and located on two sides of the central gear (3), each steering braking mechanism comprises a dual gear (11) and a steering shifting fork (4), and the small gear of the dual gear (11) is meshed with an output gear (10) and can be meshed with tooth cogs of two sides of the central gear (3). Two ends of the central shaft (14) are respectively provided with a sheet-type friction clutch (5), a braking gear (7) is arranged on the outer side of each sheet-type friction clutch (5), and each braking gears (7) drive each big gear of each dual gear (11) through a differential gear set (8). A thrust assembly is arranged between each dual gear (11) and each sheet-type friction clutch (5). According to the crawler belt speed changing box transmission steering device, a left crawler belt and a right crawler belt are driven to rotate respectively through gear shifting, cost is low, turning resistance is small, operation is flexible, and working efficiency of paddy field operation of agricultural machinery is improved.
Description
Technical field
The utility model relates to a kind of crawler belt gearbox transmission device, specifically relates to a kind of crawler belt gearbox transmission turning device.
Background technology
Crawler belt is than wheel, and the relative area that contacts with ground is bigger, and unit are is stressed little, makes vehicle be difficult for sinking.Therefore can not destroy tillage pan, have good paddy field walking performance, so be widely used in the farm machinery for example grain header, cultivator etc.At present to rotate be that hydraulic drive can realize that both sides crawler belt differential forward and backward realizes turning by two kinds of gear drive and hydraulic drives to crawler belt.But because the hydraulic drive price is expensive, complex structure, maintenance cost height generally only are applied to high-grade engineering machinery, and agricultural machinery then generally adopts gear drive, and " no-radius " turning mode that normally adopts an edge trig, another side to advance realizes turning.Be 201010574927.8 as application number, the applying date is 2010.11.25, and application publication number is CN102077741A, and Shen Qing Publication day is 2011.06.01, and denomination of invention is the patent of invention of " the combine no-radius turns to the walking gearbox ".
But because crawler bearing area is big, when farm work, the turning resistance ratio is big when taking the air line.Farm machinery is when turning, adopt an edge trig, one side to rotate, when its driving force of advancing has only straight line half, and resistance is two times of straight-line travelling, drives crawler belt when causing turning to skid, crawler belt rotates, and machine is as you were, in case skid, crawler belt is discharged earth backward, it is dark more to ascend, and causes machine to sink.Hilly country particularly, and since the restriction of field piece, the turning frequency gets higher, for example, and the grain header of 1.6 meters wide swaths, in square farm work, the time of turning accounts for total operation time about 1/6, and it is dumb to occur turning, and causes farm work efficient to reduce.
Therefore, design a low cost, the crawler travel farm machinery flexibly of turning, it is required to become present market.
Summary of the invention
The purpose of this utility model provides a kind of crawler belt gearbox transmission turning device that is applicable to that the paddy field walking is turned.
The utility model is to adopt following technical scheme to realize its goal of the invention, a kind of crawler belt gearbox transmission turning device, it comprises the central shaft of being located in the crawler belt gearbox, the central gear that is located at the central shaft stage casing, the bilateral symmetry that is positioned at central gear on the central shaft is provided with braking in a turn mechanism, described braking in a turn mechanism comprises the duplicate gear that is set on the central shaft, be connected with on the duplicate gear and turn to shift fork, the pinion of duplicate gear and output gear mesh and can mesh with the tooth inserted tooth of central gear both sides; The two ends of described central shaft respectively are provided with plate clutch, and the outside that is positioned at plate clutch on the central shaft is arranged with spragging gear, and spragging gear drives the gear wheel of the duplicate gear that meshes with differential gear set by differential gear set; Between duplicate gear and plate clutch, be arranged with the thrust assembly for the pushing plate clutch on the described central shaft.
Spragging gear described in the utility model and differential gear set engagement.
Be connected drive by chain between spragging gear described in the utility model and the differential gear set.
Thrust assembly described in the utility model comprises the push rod that is sheathed on the central shaft, is connected with push jack on the push rod.
Be provided with back-moving spring in the chip friction clutch described in the utility model.
Because adopt technique scheme, the utility model has been realized goal of the invention preferably, it drives left and right sides crawler belt respectively and rotates by gear graduation, and cost is low, turning resistance is little, flexible operation, has improved the operating efficiency of farm machinery paddy-field-working.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of thrust assembly in the utility model;
Fig. 3 is the structural representation of the utility model embodiment 2.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment 1:
By Fig. 1, Fig. 2 as can be known, a kind of crawler belt gearbox transmission turning device, it comprises the central shaft of being located in the crawler belt gearbox 14, be located at the central gear 3 in central shaft 14 stage casings, input belt wheel 1 is by the external tooth engagement of input gear train 2 with central gear 3, the bilateral symmetry that is positioned at central gear 3 on the central shaft 14 is provided with braking in a turn mechanism, described braking in a turn mechanism comprises the duplicate gear 11 that is set on the central shaft 14, be connected with on the duplicate gear 11 and turn to shift fork 4, the pinion of duplicate gear 11 and output gear 10 mesh and can mesh with the tooth inserted tooth of central gear 3 both sides; The two ends of described central shaft 14 respectively are provided with plate clutch 5, and the outside that is positioned at plate clutch 5 on the central shaft 14 is arranged with spragging gear 7, and spragging gear 7 drives the gear wheel of the duplicate gear 11 that meshes with differential gear set 8 by differential gear set 8; Between duplicate gear 11 and plate clutch 5, be arranged with the thrust assembly for pushing plate clutch 5 on the described central shaft 14.
Spragging gear 7 described in the utility model and differential gear set 8 engagements.
Thrust assembly described in the utility model comprises the push rod 12 that is sheathed on the central shaft 14, push rod 12) on be connected with push jack 13.
Be provided with back-moving spring 6 in the chip friction clutch 5 described in the utility model, make when the needs straight line moving, the tooth inserted tooth of the pinion of left and right duplicate gear 11 and central gear 3 both sides keeps engagement.
When farm machinery needs straight line moving in the paddy field, input belt wheel 1 drives the central gear 3 that is located at central shaft 14 stage casings by input gear train 2 and rotates, this moment is because the resilient support of back-moving spring 6, make and be socketed on a left side that is positioned at central gear 3 both sides on the central shaft 14, the pinion of right duplicate gear 11 and the tooth inserted tooth of central gear 3 both sides keep tight engagement, thereby central gear 3 drives a left side, right duplicate gear 11 rotates simultaneously, an and then left side, right duplicate gear 11 drives a left side that is engaged with, right output gear 10 rotates, and makes left, right driving wheel 9 is walked with linear fashion with identical speed drive left and right sides crawler belt; When needs are turned, turn to shift fork 4 according to turning to pull to the left or to the right to be connected on a left side or the right duplicate gear 11, make a left side or right duplicate gear 11 overcome the elastic force off center gear 3 of back-moving spring 6, pushing push jack 13 simultaneously exerts pressure by 12 pairs of plate clutches 5 of push rod, conduction by power, 5 pairs of spragging gears of plate clutch 7 produce torque friction power makes spragging gear 7 rotate, a because left side, the gear wheel of right duplicate gear 11 and differential gear set 8 engagements, rotate (can differential gear set 8 be set by adjusting and realize required speed difference) so drive a left side or right duplicate gear 11 with lower speed, and then the left or right output gear 10 that drive is engaged with is to rotate than low velocity, at this moment, a because left side, there is speed discrepancy (it is 2～10 times that present embodiment arranges the differential ratio) in right output gear 10, thereby makes crawler belt production corresponding speed discrepancy in both sides realize turning.
Embodiment 2:
By Fig. 2, Fig. 3 as can be known, a kind of crawler belt gearbox transmission turning device, it comprises the central shaft of being located in the crawler belt gearbox 14, be located at the central gear 3 in central shaft 14 stage casings, input belt wheel 1 is by the external tooth engagement of input gear train 2 with central gear 3, the bilateral symmetry that is positioned at central gear 3 on the central shaft 14 is provided with braking in a turn mechanism, described braking in a turn mechanism comprises the duplicate gear 11 that is set on the central shaft 14, be connected with on the duplicate gear 11 and turn to shift fork 4, the pinion of duplicate gear 11 and output gear 10 mesh and can mesh with the tooth inserted tooth of central gear 3 both sides; The two ends of described central shaft 14 respectively are provided with plate clutch 5, and the outside that is positioned at plate clutch 5 on the central shaft 14 is arranged with spragging gear 7, and spragging gear 7 drives the gear wheel of the duplicate gear 11 that meshes with differential gear set 8 by differential gear set 8; Between duplicate gear 11 and plate clutch 5, be arranged with the thrust assembly for pushing plate clutch 5 on the described central shaft 14.
Be connected drive by chain between spragging gear 7 described in the utility model and the differential gear set 8.
When the utility model needs straight line moving in the paddy field, input belt wheel 1 drives the central gear 3 that is located at central shaft 14 stage casings by input gear train 2 and rotates, this moment is because the resilient support of back-moving spring 6, make and be socketed on a left side that is positioned at central gear 3 both sides on the central shaft 14, the pinion of right duplicate gear 11 and the tooth inserted tooth of central gear 3 both sides keep tight engagement, thereby central gear 3 drives a left side, right duplicate gear 11 rotates simultaneously, an and then left side, right duplicate gear 11 drives a left side that is engaged with, right output gear 10 rotates, and makes left, right driving wheel 9 is walked with linear fashion with identical speed drive left and right sides crawler belt; When needs are turned, turn to shift fork 4 according to turning to pull to the left or to the right to be connected on a left side or the right duplicate gear 11, make a left side or right duplicate gear 11 overcome the elastic force off center gear 3 of back-moving spring 6, pushing push jack 13 simultaneously exerts pressure by 12 pairs of plate clutches 5 of push rod, conduction by power, 5 pairs of spragging gears of plate clutch 7 produce torque friction power makes spragging gear 7 rotate, a because left side, the gear wheel of right duplicate gear 11 is connected drive with differential gear set 8 by chain, so drive a left side or right duplicate gear 11 with lower speed backward rotation (can differential gear set 8 be set by adjusting and realize required speed difference) slowly, and then drive the left side be engaged with or right output gear 10 with than the low velocity backward rotation, at this moment, a because left side, right output gear 10 have a speed difference (present embodiment arranges differential and can reach 2～10 times than regulating), thereby make crawler belt production corresponding process difference in both sides realize turning.
Surplus with embodiment 1.
Claims (5)
1. crawler belt gearbox transmission turning device, it comprises the central shaft of being located in the crawler belt gearbox (14), the central gear (3) that is located at central shaft (14) stage casing, it is characterized in that the bilateral symmetry that is positioned at central gear (3) on the central shaft (14) is provided with braking in a turn mechanism, described braking in a turn mechanism comprises the duplicate gear (11) that is set on the central shaft (14), be connected with on the duplicate gear (11) and turn to shift fork (4), the pinion of duplicate gear (11) and output gear (10) mesh and can mesh with the tooth inserted tooth of central gear (3) both sides; The two ends of described central shaft (14) respectively are provided with plate clutch (5), the outside that is positioned at plate clutch (5) on the central shaft (14) is arranged with spragging gear (7), and spragging gear (7) drives the gear wheel of the duplicate gear (11) that meshes with differential gear set (8) by differential gear set (8); Be positioned at the thrust assembly that is arranged with between duplicate gear (11) and the plate clutch (5) for pushing plate clutch (5) on the described central shaft (14).
2. crawler belt gearbox transmission turning device according to claim 1 is characterized in that described spragging gear (7) and differential gear set (8) engagement.
3. crawler belt gearbox transmission turning device according to claim 1 is characterized in that being connected drive by chain between described spragging gear (7) and the differential gear set (8).
4. according to claim 1 or 2 or 3 described crawler belt gearbox transmission turning devices, it is characterized in that described thrust assembly comprises the push rod (12) that is sheathed on the central shaft (14), is connected with push jack (13) on the push rod (12).
5. crawler belt gearbox transmission turning device according to claim 4 is characterized in that being provided with in the described chip friction clutch (5) back-moving spring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320027235 CN203120416U (en) | 2013-01-18 | 2013-01-18 | Crawler belt speed changing box transmission steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320027235 CN203120416U (en) | 2013-01-18 | 2013-01-18 | Crawler belt speed changing box transmission steering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203120416U true CN203120416U (en) | 2013-08-14 |
Family
ID=48928465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320027235 Expired - Fee Related CN203120416U (en) | 2013-01-18 | 2013-01-18 | Crawler belt speed changing box transmission steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203120416U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103749021A (en) * | 2014-01-03 | 2014-04-30 | 广元市远通汽车配件制造有限公司 | Steering mechanism of tracked miniature rice and wheat combine harvester |
| CN104033544A (en) * | 2014-06-05 | 2014-09-10 | 安徽天时插秧机制造有限公司 | Gearbox assembly of walking rice transplanter |
-
2013
- 2013-01-18 CN CN 201320027235 patent/CN203120416U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103749021A (en) * | 2014-01-03 | 2014-04-30 | 广元市远通汽车配件制造有限公司 | Steering mechanism of tracked miniature rice and wheat combine harvester |
| CN104033544A (en) * | 2014-06-05 | 2014-09-10 | 安徽天时插秧机制造有限公司 | Gearbox assembly of walking rice transplanter |
| CN104033544B (en) * | 2014-06-05 | 2017-12-15 | 安徽天时插秧机制造有限公司 | A kind of gearbox assembly of hand transplanting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20170118 |