CN204682059U - Feller crane arm slew gear - Google Patents
Feller crane arm slew gear Download PDFInfo
- Publication number
- CN204682059U CN204682059U CN201520378408.2U CN201520378408U CN204682059U CN 204682059 U CN204682059 U CN 204682059U CN 201520378408 U CN201520378408 U CN 201520378408U CN 204682059 U CN204682059 U CN 204682059U
- Authority
- CN
- China
- Prior art keywords
- small pulley
- angling cylinder
- feller
- crane arm
- column
- 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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- Jib Cranes (AREA)
Abstract
The utility model relates to forestry machinery field, especially a kind of slew gear being applied to feller crane arm, comprise base, column, device for revolving and driving and slewing gear, described column is connected with described base rotation, described device for revolving and driving is fixedly connected on described chassis interior and comprises two angling cylinders, described slewing gear is arranged on described chassis interior and comprises the small pulley be located on described angling cylinder, be located at the large belt wheel on described column and cog belt, described small pulley is fixedly connected with described angling cylinder, described large belt wheel is fixedly connected with described column, described large belt wheel, described small pulley all engages each other with described cog belt.The utility model physical dimension is little, and angling cylinder easily can realize the angle of revolution of 180 °, and rotating accuracy is high, adopts ribbed V-belt drives, compact conformation, stable drive, and transmitted power is comparatively large, and structure is simple.
Description
Technical field:
The utility model relates to forestry machinery field, especially a kind of slew gear being applied to feller crane arm.
Background technology:
Crane arm is the important equipment of feller, which determines work capacity and the job area of feller.Under the effect of crane arm, felling head can arrive the optional position in job area.
Wherein, the slew gear of feller crane arm is the mechanism realizing exchanging crane arm operating position, determines the angle of revolution of crane arm.A kind of slew gear of existing feller crane arm changes the piston rod of two hydraulic cylinders into rack bar, and two hydraulic cylinders stretch in the opposite direction and directly jointly drive a central gear to form.Another kind of slew gear is that hydraulic cylinder reciprocated through rack drives central gear, changes into the positive and negative swing rotary of gear shaft, the thrust of hydraulic cylinder is changed into the output torque of gear shaft simultaneously.There are two hydraulic cylinders and monodentate bar, four hydraulic cylinders and double rack two kinds of versions, general employing the second version.Because the pendulum angle of gear shaft is directly proportional to the length of rack bar or tooth bar, therefore in order to realize the revolution of larger angle, whole slew gear is bulky, and hydraulic cylinder part is exposed to base exterior, large to cylinder body infringement.These two kinds of slew gears are bulky, and the hydraulic cylinder quantity of use is many, but it is also little to realize angle of revolution, and transmitted power is little.
Utility model content:
The purpose of this utility model is for the problems referred to above, provides a kind of physical dimension little, and angle of revolution is large, stable drive, compact conformation, and transmitted power is comparatively large, and structure simple feller crane arm slew gear.
The technical scheme that the utility model provides is:
A kind of slew gear for feller crane arm, comprise base, column, device for revolving and driving and slewing gear, described column is connected with described base rotation, described device for revolving and driving is fixedly connected on described chassis interior and comprises two angling cylinders, described slewing gear is arranged on described chassis interior and comprises the small pulley be located on described angling cylinder, be located at the large belt wheel on described column and cog belt, described small pulley is fixedly connected with described angling cylinder, described large belt wheel is fixedly connected with described column, described large belt wheel, described small pulley all engages each other with described cog belt.
Preferably, the quantity of described angling cylinder is a pair and size is identical, be respectively angling cylinder A and angling cylinder B, the quantity of described small pulley is two and size is identical, is respectively the small pulley A be located on described angling cylinder A and the small pulley B be located on described angling cylinder B.
Preferably, described cog belt is a kind of polywedge bet.
Preferably, described angling cylinder and described base are bolted to connection.
Preferably, described small pulley is fixedly connected with by flat key with described angling cylinder, and described large belt wheel is fixedly connected with by flat key with described column.
The beneficial effects of the utility model: the slew gear being applied to feller crane arm adopting the utility model design, physical dimension is little, and angling cylinder can vertically be placed, and avoids cylinder body to be exposed to base exterior, prevent external interference, only there is the situation that natural aging damages; Angling cylinder easily can realize the angle of revolution of 180 °, and rotating accuracy is high, can reach 0.1 °; The output torque of angling cylinder is large, can reduce oil cylinder quantity; Adopt ribbed V-belt drives, compact conformation, size is little, stable drive, and transmitted power is larger.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the utility model feller crane arm slew gear.
Fig. 2 is the cutaway view of the utility model feller crane arm slew gear.
Fig. 3 is the interior schematic diagram of the utility model feller crane arm slew gear.
In accompanying drawing: 1 is base, 2 is column, and 3 is large belt wheel, and 4 is angling cylinder A, and 5 is small pulley A, and 6 is angling cylinder B, and 7 is small pulley B, and 8 is cog belt.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is specifically described:
As shown in drawings, a kind of slew gear for feller crane arm, be arranged between vehicle body and turntable, comprise bottom and vehicle body to be rotationally connected by bearing pin and the base 1 that is rotationally connected by rolling bearing of top and turntable, be located at device for revolving and driving and the slewing gear of base 1 inside, a part and base 1 are rotationally connected by rolling bearing and a part of column 2 be fixedly connected by welding with turntable.Device for revolving and driving comprises and to be bolted to connection with base 1 and the identical angling cylinder A4 of size and angling cylinder B6.Slewing gear comprises the small pulley A5, the small pulley B7 that are fixedly connected with by flat key with angling cylinder A4, angling cylinder B6, the large belt wheel 3 be fixedly connected with by flat key with column 2, the cog belt 8 simultaneously engaged with large belt wheel 3, small pulley A5, small pulley B7.
Operation principle of the present utility model is that the gyration of the angling cylinder A4 and angling cylinder B6 that are fixed on base 1 is passed to small pulley A5 and small pulley B7 by flat key; By small pulley A5 and small pulley B7 as driving pulley, large belt wheel 3 is driven pulley, the recessed tooth on small pulley A5 and the small pulley B7 surface double wedge corresponding to cog belt 8 inner face is relied on to be meshed to transmit and to move and power, after driving cog belt 8 to move, the recessed tooth relying on the double wedge of cog belt 8 inner face surperficial corresponding to large belt wheel 3 is again meshed to transmit and moves and power, pass motion to column 2 by flat key again, driven rotary platform turns round, thus drives the gyration of whole feller crane arm.
Adopt the slew gear being applied to feller crane arm of the utility model design, physical dimension is little, and angling cylinder can vertically be placed, and avoids cylinder body to be exposed to base exterior, prevents external interference, only there is the situation that natural aging damages; Angling cylinder easily can realize the angle of revolution of 180 °, and rotating accuracy is high, can reach 0.1 °; The output torque of angling cylinder is large, can reduce oil cylinder quantity; Adopt ribbed V-belt drives, compact conformation, size is little, stable drive, and transmitted power is larger.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.
Claims (5)
1. the slew gear for feller crane arm, comprise base (1), column (2), device for revolving and driving and slewing gear, described column (2) and described base (1) are rotationally connected, it is characterized in that: described device for revolving and driving is fixedly connected on described base (1) inside and comprises two angling cylinders, described slewing gear is arranged on described base (1) inside and comprises the small pulley be located on described angling cylinder, be located at the large belt wheel (3) on described column (2) and cog belt (8), described small pulley is fixedly connected with described angling cylinder, described large belt wheel (3) is fixedly connected with described column (2), described large belt wheel (3), described small pulley all engages each other with described cog belt (8).
2. the slew gear for feller crane arm according to claim 1, it is characterized in that: the quantity of described angling cylinder is a pair and size is identical, be respectively angling cylinder A (4) and angling cylinder B (6), the quantity of described small pulley is two and size is identical, is respectively the small pulley A (5) be located on described angling cylinder A (4) and the small pulley B (7) be located on described angling cylinder B (6).
3. the slew gear for feller crane arm according to claim 1, is characterized in that: described cog belt (8) is a kind of polywedge bet.
4. the slew gear for feller crane arm according to claim 1, is characterized in that: described angling cylinder and described base (1) are bolted to connection.
5. the slew gear for feller crane arm according to claim 1, it is characterized in that: described small pulley is fixedly connected with by flat key with described angling cylinder, described large belt wheel (8) is fixedly connected with by flat key with described column (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520378408.2U CN204682059U (en) | 2015-06-04 | 2015-06-04 | Feller crane arm slew gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520378408.2U CN204682059U (en) | 2015-06-04 | 2015-06-04 | Feller crane arm slew gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204682059U true CN204682059U (en) | 2015-10-07 |
Family
ID=54222415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520378408.2U Expired - Fee Related CN204682059U (en) | 2015-06-04 | 2015-06-04 | Feller crane arm slew gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204682059U (en) |
-
2015
- 2015-06-04 CN CN201520378408.2U patent/CN204682059U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20160604 |