CN207617832U - The height adjustment device of caterpillar chassis - Google Patents
The height adjustment device of caterpillar chassis Download PDFInfo
- Publication number
- CN207617832U CN207617832U CN201721740363.4U CN201721740363U CN207617832U CN 207617832 U CN207617832 U CN 207617832U CN 201721740363 U CN201721740363 U CN 201721740363U CN 207617832 U CN207617832 U CN 207617832U
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- China
- Prior art keywords
- drive rod
- outside
- hydraulic cylinder
- rack
- gear
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- 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.)
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Abstract
The utility model is related to field of transport machinery, it is desirable to provide a kind of height adjustment device of caterpillar chassis.The device includes two groups of driving wheels and driven wheel, and outside drive rod is housed on the wheel shaft of driving wheel, and inside drive rod is housed on the wheel shaft of driven wheel, and end, which is respectively fixedly mounted gear and is realized by transmission gear, to be coupled；The end of the piston rod of hydraulic cylinder both sides is intermeshed by rack with the gear of boom end is driven set on outside, to change the angle between outside drive rod and inside drive rod.The utility model is under the premise of meeting good passability of the chassis for complicated landform, using the principle of hydraulic cylinder, rack and pinion group reversed turning, the effect that a hydraulic cylinder controls four drive rod revolution lock-out states is realized, production cost is effectively reduced, simplifies structure design.The space that sleeve mechanism occupies chassis is small, compact-sized, and realizes multiple functions such as height adjusting, damping, crawler body tensioning and locking chassis state.
Description
Technical field
The utility model is related to a kind of height adjustment device of caterpillar chassis, belong to field of transport machinery.
Background technology
Caterpillar chassis is widely used in the necks such as engineering machinery, agricultural machinery and transmitting mechanical since its ground pressure is small
Domain.Since the structure of crawler body is heavier, in order to pursue stability in design, the height design of centre of gravity on chassis it is relatively low,
The chassis of general type can be limited by chassis carrying platform.For agricultural machinery and gearing, due to crop land
Complex with the landform in stockyard, the height modulability difference on chassis causes its passability to be affected.
Under prior art conditions, due to the not foldability of crawler body, do not occur height-adjustable chassis machine also
Tool occurs, and is generally that each mechanical equipment is corresponded to using a type of crawler body by the way of, this leads to track bottom
The versatility of disk is poor, this will increase the production cost of crawler body.
In addition, caterpillar chassis machinery is general all to carry out open type transport by means of transports such as trucies, if it is possible to
Do not change and realize closed transport by adjusting the height of crawler body in the case of the crawler belt machinery scale of construction, fortune will be effectively reduced
The problems such as the losing that fall off of part during defeated.
Utility model content
The technical problems to be solved in the utility model is to overcome deficiency in the prior art, provides a kind of caterpillar chassis
Height adjustment device.
To solve technical problem, the solution of the utility model is：
A kind of height adjustment device of caterpillar chassis is provided, includes the driving below caterpillar machinery equipment chassis
Sprocket wheel and crawler belt, the device further include outside drive rod, inside drive rod, hydraulic cylinder, rack and orientation control gear set；It is described
Drive sprocket has two groups, is located at the both ends on the inside of endless track；Every group of drive sprocket includes a driving wheel and one
Driven wheel is equipped with outside drive rod on the wheel shaft of driving wheel, inside drive rod is housed on the wheel shaft of driven wheel, outside drive rod
Length is more than inside drive rod, and two driven wheels are located between two driving wheels；Drive rod and inside drive rod is another on the outside
A gear is respectively fixedly mounted in one end, and two gears are realized by the gear shaft equipped with transmission gear to be coupled and collectively form orientation
Control gear set；
The device further includes a hydraulic cylinder, and piston rod is respectively provided in its opposite sides, and when hydraulic cylinder works, both sides are lived
Reversed displacement can occur simultaneously for stopper rod；In the end of piston rod, respectively there are one racks, rack to drive boom end with set on outside for dress
Gear intermeshing, rack can pass through orientation control gear set change outside drive rod and inside drive rod between angle.
In the utility model, described device includes two rack sliding grooves for installing the rack；Rack sliding groove
One is each attached to hydraulic cylinder to be connected on the mounting plate on chassis.
In the utility model, two piston rods of the rack sliding groove and hydraulic cylinder are horizontal direction arrangement.
In the utility model, the gear set on the end of outside drive rod and inside drive rod is straight spur gear.
In the utility model, the crawler belt and outside drive rod, inside drive rod and orientation control gear set respectively have two
Set, is located at the both sides of caterpillar machinery equipment；The hydraulic cylinder both sides are respectively provided with two piston rods, in the end of piston rod
There are one racks for each dress；Each rack is engaged a gear for being set to outside driving boom end respectively.
The method that caterpillar chassis height is adjusted is realized using the device, is specifically included：
When under caterpillar machinery equipment normal operating condition, hydraulic cylinder does not work, outside drive rod and inside drive rod
Between angle be zero, driving wheel and the respective axial connecting line of driven wheel are in an overlapping or parallel；
When loading caterpillar machinery equipment conveying, make two piston rod displacements of Hydraulic Cylinder, and then pass through orientation
Control gear set makes to be in an angle between outside drive rod and inside drive rod；Final two driven wheels are lifted, two actives
Spacing reduces between wheel, and crawler belt becomes trapezoidal shape by the annular of runway shape.
Hydraulic cylinder be equipped with piston rod adaptive zone of action, piston rod can occur in setpoint distance reciprocating motion for
Damping.In the course of work of hydraulic cylinder, the direction of motion of two toothed racks on the contrary, two gears engaged direction of rotation
On the contrary.
Compared with the existing technology, the beneficial effects of the utility model：
(1) the utility model is under the premise of meeting good passability of the chassis for complicated landform, using hydraulic cylinder, tooth
The principle of item and gear set reversed turning realizes the effect that a hydraulic cylinder controls four drive rod revolution lock-out states, has
Effect reduces production cost, simplifies structure design.The space that sleeve mechanism occupies chassis is small, compact-sized, and realizes
Multiple functions such as height adjusting, damping, crawler body tensioning and locking chassis state.
(2) the utility model can adjust the height of crawler belt according to the variation of landform, adjust height and drive rod angle of revolution
It is related to spend α, complete machine can realize that height is adjusted in the operating condition, and can keep preferable stability.Do not increasing track bottom
Disk body amount enhances the versatility of crawler body and the passability of complicated landform, the hydraulic pressure rack pinion group knot in design scheme
Structure has the function of lockking chassis state and damping, aligns the stability for improving complete machine and play an important roll.For agricultural machinery
For Transport Machinery, passability is affected by orographic factor, and adjustable height crawler body can enhance chassis for multiple
The handling capacity of miscellaneous landform.
(3) the utility model efficiently solves complicated landform crawler body by a kind of adjustable height crawler body of design
By sex chromosome mosaicism, can carry multiple platforms on lid crawler body and adapt to different duty requirements, effectively reduce production enterprise
The production cost of industry.
Description of the drawings
Fig. 1 is the layout of crawler belt and appurtenances before height is adjusted.
Fig. 2 is component structural relation schematic diagram in Fig. 1.
Fig. 3 is the layout of crawler belt and appurtenances after height is adjusted.
Fig. 4 is component structural relation schematic diagram in Fig. 3.
Reference numeral in figure：1 driving wheel, 2 outside drive rods, 3 rack sliding grooves, 4 racks, 5 inside drive rods, 6 hydraulic pressure
Cylinder, 7 crawler belts, 8 orientation control gear set, and 08-1 (is fixed on the drive rod of inside) gear, and 08-2 (is fixed on gear shaft
) transmission gear, 08-3 gear shafts, 9 piston rods.
Specific implementation mode
The utility model is further illustrated below by embodiment, but is not limited to following embodiment.
The height adjustment device of the caterpillar chassis of the utility model includes below caterpillar machinery equipment chassis
Drive sprocket and crawler belt 7 further include outside drive rod 2, inside drive rod 5, hydraulic cylinder 6, rack 4 and orientation control gear set 8；
The drive sprocket has two groups, is located at the both ends of 7 inside of crawler belt of annular；Every group of drive sprocket includes a driving wheel
1 and a driven wheel, outside drive rod 2 is housed on the wheel shaft of driving wheel 1, inside drive rod 5 is housed on the wheel shaft of driven wheel, outside
The length of side drive rod 2 is more than inside drive rod 5, and two driven wheels are located between two driving wheels 1；2 He of drive rod on the outside
A gear, optional straight spur gear is respectively fixedly mounted in the other end of inside drive rod 5.Two gears are by being equipped with driving cog
The gear shaft 08-3 for taking turns 08-2 realizes connection, and collectively forms orientation control gear set 8；
The device further includes a hydraulic cylinder 6, is respectively provided with the piston rod 9 of horizontal direction arrangement in its opposite sides, works as liquid
Reversed displacement can occur simultaneously for both sides piston rod 9 when cylinder pressure 6 works；In the end of piston rod 9, respectively there are one horizontal directions for dress
Rack 4, rack 4 are intermeshed with the gear set on 2 end of outside drive rod, and rack 4 can control gear set 8 by orientation and change
Angle between outside drive rod 2 and inside drive rod 5.Rack 4 is mounted in rack sliding groove 3, rack sliding groove 3 and hydraulic cylinder
6, which are each attached to one, is connected on the mounting plate on chassis.
Because caterpillar machinery equipment has two crawler belts 7, therefore crawler belt 7 and outside drive rod 2, inside drive rod 5 and side
Position control gear set 8 also respectively has two sets, is located at the both sides of caterpillar machinery equipment；At this point, 8 both sides of hydraulic cylinder are respectively provided with two
Root piston rod 9, in the end of piston rod 9, respectively there are one racks 4 for dress；Each rack 4 is engaged one and is set to outside drive respectively
The gear of 2 end of lever.
The method that caterpillar chassis height is adjusted is realized using aforementioned device, is specifically included：
When under caterpillar machinery equipment normal operating condition, hydraulic cylinder 6 does not work, and outside drive rod 2 drives with inside
Angle between bar 5 is zero, and driving wheel 1 and the respective axial connecting line of driven wheel are in an overlapping or parallel；It is set by caterpillar machinery
When the defeated loading of received shipment, hydraulic cylinder 6 is set to push two 9 displacements of piston rod, and then control gear set 8 by orientation to make outside drive rod
It is in an angle between 2 and inside drive rod 5；Final two driven wheels are lifted, and spacing reduces between two driving wheels 1, crawler belt 7
Trapezoidal shape is become by the annular of runway shape.In the course of work of hydraulic cylinder 6, the direction of motion of two toothed racks 4 with it on the contrary, nibble
The direction of rotation of two gears closed is opposite.The hydraulic cylinder 6 is equipped with 9 adaptive zone of action of piston rod, and piston rod 9 can set
Occur to move back and forth for damping in set a distance.
Further operation instruction：
Hydraulic cylinder 6 drives piston rod 9 to move, and band carry-over bar 4 is moved in a straight line along rack sliding groove 3, and rack 4 drives solid
The gear rotation being scheduled on the drive rod 2 of outside is further driven by transmission gear 08-2 to gear shaft 08-3 rotations
The gear 08-1 rotations being fixed on the drive rod 5 of inside.When it is α ° that outside drive rod 5, which is promoted to horizontal plane fixture, outside
It is h that gear on drive rod 5 improves distance compared with original height.Inside drive rod 2 controls the driving of gear set 8 in orientation
The lower revolution for realizing opposite direction is further driven to the promotion of driven wheel and realizes that the height of crawler body is adjusted.
The application of height adjustment device based on the utility model, caterpillar machinery equipment can carry out height according to landform
State switching, after carrying out state switching, by latching rack 4 so that the stability on entire chassis and stationarity is not changed.
Since in the length for will not change when height condition switching crawler belt 7, driving wheel wheel 1 is moved in driving crawler belt 7
While realize tension to crawler belt 7.Rubber making can be used in crawler belt 7, enhances the stability on entire chassis.
Orientation control gear set 8 in the optional cylinder involute tooth wheels of transmission gear 08-2, when be fixed on outside drive rod 2
On gear rotated counterclockwise by angle ω 1 when, be fixed on inside drive rod 5 on gear 08-1 rotate ω 2, angle of revolution counterclockwise
ω 1=ω 2 are spent, crawler belt shape is trapezoidal shape after revolution.
It is advance to the piston rod 9 of hydraulic cylinder 6 for the stationarity for keeping chassis to be travelled after getting higher and the vibrations for reducing car body
One adaptive reciprocal section is set, when chassis is when encountering topography variation, the reciprocating motion generation of level can be realized with speed v
The damping of car body is realized for spring shock absorption mechanism.
Claims (5)
1. a kind of height adjustment device of caterpillar chassis, include drive sprocket below caterpillar machinery equipment chassis and
Crawler belt, which is characterized in that the device further includes outside drive rod, inside drive rod, hydraulic cylinder, rack and orientation control gear
Group；The drive sprocket has two groups, is located at the both ends on the inside of endless track；Every group of drive sprocket includes a driving wheel
With a driven wheel, outside drive rod is housed on the wheel shaft of driving wheel, inside drive rod is housed on the wheel shaft of driven wheel, outside is driven
The length of lever is more than inside drive rod, and two driven wheels are located between two driving wheels；Drive rod and inside driving on the outside
A gear is respectively fixedly mounted in the other end of bar, and two gears realize connection and common structure by the gear shaft equipped with transmission gear
Gear set is controlled at orientation；
The device further includes a hydraulic cylinder, is respectively provided with piston rod in its opposite sides, the both sides piston rod when hydraulic cylinder works
Reversed displacement can occur simultaneously；In the end of piston rod, respectively there are one rack, rack and the teeth set on outside driving boom end for dress
Wheel intermeshing, rack can control the angle between gear set change outside drive rod and inside drive rod by orientation.
2. the apparatus according to claim 1, which is characterized in that described device includes two teeth for installing the rack
Sliding groove；Rack sliding groove and hydraulic cylinder are each attached to one and are connected on the mounting plate on chassis.
3. the apparatus of claim 2, which is characterized in that two piston rods of the rack sliding groove and hydraulic cylinder are equal
It is arranged for horizontal direction.
4. the apparatus according to claim 1, which is characterized in that be set to the tooth of the end of outside drive rod and inside drive rod
Wheel is straight spur gear.
5. the apparatus according to claim 1, which is characterized in that the crawler belt and outside drive rod, inside drive rod and
Orientation control gear set respectively has two sets, is located at the both sides of caterpillar machinery equipment；The hydraulic cylinder both sides are respectively provided with two
Piston rod, in the end of piston rod, respectively there are one racks for dress；Each rack is engaged one and is set to outside driving rod end respectively
The gear in portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740363.4U CN207617832U (en) | 2017-12-14 | 2017-12-14 | The height adjustment device of caterpillar chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740363.4U CN207617832U (en) | 2017-12-14 | 2017-12-14 | The height adjustment device of caterpillar chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207617832U true CN207617832U (en) | 2018-07-17 |
Family
ID=62823312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721740363.4U Expired - Fee Related CN207617832U (en) | 2017-12-14 | 2017-12-14 | The height adjustment device of caterpillar chassis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207617832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112046631A (en) * | 2020-07-29 | 2020-12-08 | 盐城工学院 | A running gear for paddy field operation agricultural vehicle |
-
2017
- 2017-12-14 CN CN201721740363.4U patent/CN207617832U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112046631A (en) * | 2020-07-29 | 2020-12-08 | 盐城工学院 | A running gear for paddy field operation agricultural vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 Termination date: 20191214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |