CN201137164Y - Digging machine separable front axle drive structure - Google Patents
Digging machine separable front axle drive structure Download PDFInfo
- Publication number
- CN201137164Y CN201137164Y CNU2007200092136U CN200720009213U CN201137164Y CN 201137164 Y CN201137164 Y CN 201137164Y CN U2007200092136 U CNU2007200092136 U CN U2007200092136U CN 200720009213 U CN200720009213 U CN 200720009213U CN 201137164 Y CN201137164 Y CN 201137164Y
- Authority
- CN
- China
- Prior art keywords
- front axle
- shaft
- main shaft
- shift fork
- excavator
- 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 - Lifetime
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- Gear-Shifting Mechanisms (AREA)
- Structure Of Transmissions (AREA)
Abstract
Disclosed is a separable front axle drive structure of an excavator, which relates to an excavator and is characterized in that the other end of an output shaft of a lower transmission case extends out of a spline shaft and is fixed with a front axle transmission case. The front axle transmission case is composed of a case body, a main shaft, a flange, bearings, a sliding connecting sleeve, a shift fork and an operating device. The main shaft is sleeved on two bearings, the bearings are fixed on a shell bearing seat, the main shaft and the output shaft of the transmission case have a same center line, and one end of the main shaft is equipped with a spline shaft which is separated from the spline shaft extending from the output shaft of the transmission case by a small gap with the same spline. The other end of the flange is equipped with the flange, the sliding connecting sleeve is movably sleeved on the spline shaft of the main shaft, the inner circle of the sliding connecting sleeve is engaged with the spline shaft, the outer circle of the sliding connecting sleeve is provided with an annular groove, the shift fork is movably sleeved on the annular groove, and the other end of the shift fork is fixed on the operating device. The separable front axle drive structure of the excavator has the advantages that the front axle employs a clutch structure, thereby realizing the separable front axle can be linked and facilitating operation, the front axle can be successfully separated or linked depending on work conditions, the structure is simple, and the cost is low.
Description
Technical field:
The utility model relates to excavator, is specially adapted to the preceding bridge driving mechanism of excavator.
Prior art:
The mini-excavator running gear is to give gearbox by the diesel engine transmission at present, makes it to drive for forward and backward bridge by gearbox by the transfer case transmission again.Mechanism like this, its structure bulky complex, operation inconvenience.
Another kind of structure is: the mini-excavator running gear is that the upper gear box, the underdrive case that by gearbox, only play the space transfer function successively by diesel engine are given back axle with power transmission, drives back axle, and this kind structure propons does not have driving force.Its weak point is only to have rear bridge driven, in case road conditions are poor, when the gradient is big, the excavator walking is ineffective.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned weak point, and a kind of excavator separable front axle driving structure is provided.
Scheme of the present utility model is that the other end at underdrive case output shaft stretches out a splined shaft, fixes a propons transmission case in this end correspondence.This propons transmission case is made up of casing, main shaft, flange, bearing, the cover that is slidingly connected, shift fork, operating means, collar bush is on two bearings, bearing fixing is on the housing shaft bearing, main shaft and the same center line of underdrive case output shaft, one end of main shaft is a splined shaft, this splined shaft is separated by with the little gap of splined shaft that following biography case output shaft stretches out, and spline is measure-alike; The other end of main shaft is a flange, and kink the cover that is slidingly connected on the main spindle multiple spline axle, be slidingly connected the cover in the circle with splined shaft movingly, be slidingly connected the cover cylindrical individual ring groove is arranged, kink shift fork on this ring groove, the shift fork other end is fixed on the operating means.
Advantage of the present utility model is: mini-excavator adopts the underdrive case to connect the propons drive mechanism, rear bridge driven before realizing, simultaneously, propons adopts clutch configuration, but realizes that the propons interlock is separable, under the off working state, propons separates, easy to operate, simultaneously road conditions poor, when the gradient is big, propons interlock then, walking is strong, ground, the next visual field of working condition excavates operating mode propons is broken away from or interlock, and this mechanism structure is simple, cost is low.
Description of drawings:
Accompanying drawing is the utility model structural representation.
The specific embodiment:
The utility model mechanism is that the other end at underdrive case (1) output shaft stretches out a splined shaft (8), fixes a propons transmission case in this end correspondence.This propons transmission case is made up of casing (2), main shaft (7), flange (6), bearing, the cover (3) that is slidingly connected, shift fork (4), operating means (5), main shaft (7) is enclosed within on the two bearings, bearing fixing is on the housing shaft bearing, main shaft (7) and the same center line of underdrive case (1) output shaft, one end of main shaft (7) is a splined shaft, this splined shaft is separated by with the little gap of splined shaft (8) that following biography case output shaft stretches out, and spline is measure-alike; The other end of main shaft (7) is flange (6), kink the cover (3) that is slidingly connected on main shaft (7) splined shaft, interior circle of the cover (3) that is slidingly connected and splined shaft are movingly, cover (3) cylindrical that is slidingly connected has individual ring groove, kink shift fork (4) on this ring groove, and shift fork (4) other end is fixed on the operating means (5).
Operating means (5) can be pneumatic, surge, electromagnetism, manual variety of way.
Pneumatic mode is that a cylinder chamber is set in the propons transmission case, and the piston rod end in the cylinder and the fixed end of shift fork (4) are fixed, and cylinder realizes that with Compressed Gas pipeline is connected again.
Hydraulic way is: a cylinder chamber is set in the propons transmission case, and the fixed end of in-oil cylinder piston rod end and shift fork (4) is fixed, and oil cylinder realizes that with pressure oil pipeline is connected again.
The electromagnetism flowing mode is that an electromagnet is fixedlyed connected with shift fork (4) fixed end.
Manual mode is that an end of hand lever is fixedlyed connected with shift fork (4) fixed end.
Underdrive case (1) output shaft is connected with back axle, and propons transmission case flange (6) is connected with propons, rear bridge driven before realizing.
During work, if when needing propons to drive, then operating means (5) action, make cover (3) slippage forward that is slidingly connected, be inserted in the splined shaft (8) of underdrive case (1) one end, the output shaft of underdrive case (1) propons simultaneously power transmission successively being given propons transmission case main shaft (7), flange (6), be connected then, thereby driving propons with flange (6).
If do not need propons to drive, then operating means (5) makes shift fork (4) slippage backward, the cover (3) that is slidingly connected is disengaged with underdrive case (1) splined shaft (8) then can.
Claims (5)
1, excavator separable front axle driving structure, comprise casing (2), main shaft (7), flange (6), the other end that it is characterized in that underdrive case (1) output shaft stretches out a splined shaft (8), fix a propons transmission case in this end correspondence, this propons transmission case is by casing (2), main shaft (7), flange (6), bearing, cover (3) is slidingly connected, shift fork (4), operating means (5) is formed, main shaft (7) is enclosed within on the two bearings, bearing fixing is on the housing shaft bearing, main shaft (7) and the same center line of underdrive case (1) output shaft, one end of main shaft (7) is a splined shaft, this splined shaft is separated by with the little gap of splined shaft (8) that following biography case output shaft stretches out, and spline is measure-alike; The other end of main shaft (7) is flange (6), kink the cover (3) that is slidingly connected on main shaft (7) splined shaft, interior circle of the cover (3) that is slidingly connected and splined shaft are movingly, cover (3) cylindrical that is slidingly connected has individual ring groove, kink shift fork (4) on this ring groove, and shift fork (4) other end is fixed on the operating means (5).
2, excavator separable front axle driving structure according to claim 1, it is characterized in that operating means (5) is provided with a cylinder chamber in the propons transmission case, the piston rod end in the cylinder and the fixed end of shift fork (4) are fixed, and cylinder realizes that with Compressed Gas pipeline is connected again.
3, excavator separable front axle driving structure according to claim 1, it is characterized in that operating means (5) is provided with a cylinder chamber in the propons transmission case, the fixed end of in-oil cylinder piston rod end and shift fork (4) is fixed, and oil cylinder realizes that with pressure oil pipeline is connected again.
4, excavator separable front axle driving structure according to claim 1 is characterized in that operating means (5) is that an electromagnet is fixedlyed connected with shift fork (4) fixed end.
5, excavator separable front axle driving structure according to claim 1 is characterized in that operating means (5) fixedlys connected with shift fork (4) fixed end for an end of hand lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200092136U CN201137164Y (en) | 2007-12-25 | 2007-12-25 | Digging machine separable front axle drive structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200092136U CN201137164Y (en) | 2007-12-25 | 2007-12-25 | Digging machine separable front axle drive structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201137164Y true CN201137164Y (en) | 2008-10-22 |
Family
ID=40037850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200092136U Expired - Lifetime CN201137164Y (en) | 2007-12-25 | 2007-12-25 | Digging machine separable front axle drive structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201137164Y (en) |
-
2007
- 2007-12-25 CN CNU2007200092136U patent/CN201137164Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081022 |
|
| CX01 | Expiry of patent term |