CN202545703U - Bulldozer and central transmission device thereof - Google Patents
Bulldozer and central transmission device thereof Download PDFInfo
- Publication number
- CN202545703U CN202545703U CN2012201602940U CN201220160294U CN202545703U CN 202545703 U CN202545703 U CN 202545703U CN 2012201602940 U CN2012201602940 U CN 2012201602940U CN 201220160294 U CN201220160294 U CN 201220160294U CN 202545703 U CN202545703 U CN 202545703U
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- gear
- transmission device
- shaft
- central transmission
- bulldozer
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Abstract
The utility model discloses a central transmission device which is used for a bulldozer. The central transmission device comprises a bevel pinion shaft in transmission connection with an output shaft of a gear box, and a bevel gear wheel meshed with a bevel pinion on the bevel pinion shaft, wherein the bevel pinion shaft is wholly positioned outside the gear box; and the bevel pinion and the output shaft are in transmission connection with each other through a transmission component arranged between the bevel pinion and the output shaft. Since the bevel pinion is positioned outside the gear box, a mounting space for workers is large when a gap between the bevel gear wheel and the bevel pinion is adjusted, therefore, the mounting process of the bevel gear wheel and the bevel pinion is simplified; and meanwhile, the damaged gear can be dismounted conveniently so as to be convenient for equipment maintenance and repair and reduce the cost for the equipment maintenance. The utility model also discloses the bulldozer comprising the central transmission device.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly a kind of central transmission device that is used for bulldozer.The utility model also relates to a kind of bulldozer that comprises above-mentioned central transmission device.
Background technique
The central transmission device of bulldozer (being ransaxle) is arranged on the driving mechanism between speed changer and the steering clutch.Its effect is that the torque that output shaft of gear-box is transmitted is amplified, and changes sense of rotation left and right sides steering clutch is passed in torque respectively, and finally passes to driving gear to drive the bulldozer walking.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of existing bulldozer with central transmission device.
Central transmission device mainly comprise bevel pinion and with the bevel gear wheel of bevel pinion engagement, wherein bevel pinion is a gear shaft 12, gear shaft 12 be not positioned at gearbox 11 with an end of gear, be the output shaft of speed changer.During large and small bevel gear installation process, need adjustment gear teeth face contact area, it is to obtain best circular tooth contact through the adjustment gear clearance; Because traditional small coning gear shaft is installed in the gearbox; Bevel pinion causes workman's installing space narrow and small in the middle of gearbox and bevel gear wheel, and the bulldozer body weight is very big; Make gear clearance be difficult to adjustment, installation process is inconvenience comparatively; Simultaneously, gear infringement back dismounting difficulty, the maintenance of equipment and maintenance be difficulty comparatively, and maintenance cost is higher.
Therefore, how to simplify the installation process of central transmission device, and improve its maintainability, reduce the maintenance and repair cost, just become the problem that those skilled in the art need solution badly.
The model utility content
The purpose of the utility model provides a kind of central transmission device that is used for bulldozer, and the gear clearance between its large and small bevel gear is convenient to adjustment, and is easy for installation, and is convenient to safeguard and maintenance, thereby has reduced the maintenance maintenance cost.Another purpose of the utility model provides a kind of bulldozer that comprises above-mentioned central transmission device.
To achieve these goals; The utility model provides a kind of central transmission device that is used for bulldozer; Comprise the small coning gear shaft that the output shaft with gearbox is in transmission connection; With with said small coning gear shaft on the bevel gear wheel of bevel pinion engagement, said small coning gear shaft integral body is positioned at the outside of said gearbox, said bevel pinion and said output shaft are in transmission connection through the transmitting assemblies that is arranged between the two.
Preferably, said transmitting assemblies comprises the rotating shaft that is fixedly connected with said output shaft, and the end of said rotating shaft has first gear, and the said first gear outer gearing has second gear, and said second gear is installed on said small coning gear shaft.
Preferably, said rotating shaft is a gear shaft, and said first gear shape is formed in this gear the tip of the axis.
Preferably, in the said rotating shaft back-up ring is installed, said back-up ring is higher than the inner ring of said first gear diametrically, and the position of said back-up ring in said rotating shaft is positioned at the outside of said first gear.
Preferably, said rotating shaft is connected with said output shaft spline.
Preferably, said second gear is connected with said small coning gear shaft spline.
Preferably, said first gear and said second gear are straight toothed spur gear.
The utility model also provides a kind of bulldozer, comprises speed changer, steering clutch and is installed on the central transmission device between said speed changer and the steering clutch, and said central transmission device is aforesaid central transmission device.
The central transmission device that the utility model provides is used for bulldozer, this central transmission device comprise small coning gear shaft that the output shaft with gearbox is in transmission connection and with said small coning gear shaft on the bevel gear wheel of bevel pinion engagement; Wherein, small coning gear shaft integral body is positioned at the outside of said gearbox, and said bevel pinion and said output shaft are in transmission connection through the transmitting assemblies that is arranged between the two.Like this, because bevel pinion is positioned at the outside of gearbox, when the gap of adjusting between bevel gear wheel and the bevel pinion, workman's installing space is bigger, thereby has simplified the installation process of large and small bevel gear; Simultaneously, gear infringement back easy accessibility is convenient to the maintenance and the maintenance of equipment, has reduced the maintenance cost of equipment.
In a kind of embodiment; The transmitting assemblies that the utility model provided comprises the rotating shaft that is fixedly connected with said output shaft; The end of said rotating shaft has first gear, and the said first gear outer gearing has second gear, and said second gear is installed on said small coning gear shaft; The outputting power of gearbox passes to rotating shaft through output shaft and cooperating of rotating shaft; Thereby with transmission of power to first gear in the rotating shaft; First gear and second gear are through both outer gearing transferring power; The installation of second gear and small coning gear shaft is given small coning gear shaft with transmission of power, and passes through the engagement outputting power of bevel pinion and bevel gear wheel; The structure of this kind transmitting assemblies is comparatively simple, and cost of production is lower.
In another kind of embodiment, back-up ring is installed in the rotating shaft that the utility model provided, said back-up ring is higher than the inner ring of said first gear diametrically, and the position of said back-up ring in said rotating shaft is positioned at the outside of said first gear; Through back-up ring is that first gear provides axially locating, has improved the reliability of positioning of first gear.
Description of drawings
Fig. 1 is the structural representation of a kind of existing bulldozer with central transmission device;
Fig. 2 is the structural representation of a kind of embodiment of central transmission device that the utility model provided.
Embodiment
The core of the utility model provides a kind of central transmission device that is used for bulldozer, and the gear clearance between its large and small bevel gear is convenient to adjustment, and is easy for installation, and is convenient to safeguard and maintenance, thereby has reduced the maintenance maintenance cost.Another core of the utility model provides a kind of bulldozer that comprises above-mentioned central transmission device.
In order to make those skilled in the art better understand the technological scheme of the utility model, the utility model is done further to specify below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 2, Fig. 2 is the structural representation of a kind of embodiment of central transmission device that the utility model provided.
The central transmission device that the utility model provided is used for bulldozer; This central transmission device is arranged between speed changer and the steering clutch; Comprise bevel pinion 31 that is positioned on the small coning gear shaft 3 and the bevel gear wheel 4 that meshes with bevel pinion 31; The output shaft and the above-mentioned small coning gear shaft 3 of the gearbox 2 of speed changer are in transmission connection, and small coning gear shaft 3 integral body are positioned at the outside of gearbox 2, and bevel pinion 31 is in transmission connection through the transmitting assemblies that is arranged between the two with output shaft.
It is to be noted; The small end external diameter of above-mentioned bevel pinion 31 is less than the small end external diameter of bevel gear wheel 4; The big end external diameter of bevel pinion 31 is less than the big end external diameter of bevel gear wheel 4, and the parameters such as gear of velocity ratio of two bevel gears and two gears should be confirmed according to actual use condition, not do qualification at this.
For the ease of processing, bevel pinion 31 can be spur bevel gear with bevel gear wheel 4, and the crossed axis angle of two gears is 90 °; Apparently, as long as can realize normal transmission, two bevel gears also are not limited to spur bevel gear, also can be other forms of bevel gear, for example helical bevel gear etc.The crossed axis angle of two gears also is not limited to 90 °, also can confirm the number of degrees of crossed axis angle according to the actual transmission situation.
In actual use; Bevel pinion 31 can not expose outside with bevel gear wheel 4 usually, outside bevel pinion 31 and the bevel gear wheel 4 gear-box can be set respectively, and gear-box is installed on the gearbox 2; When the adjusting gear gap, gear-box opened or gear-box pulled down from gearbox 2 get final product.
Like this, because bevel pinion 31 is positioned at the outside of gearbox 2, when the gap of adjusting between bevel gear wheel 4 and the bevel pinion 31, workman's installing space is bigger, thereby has simplified the installation process of large and small bevel gear 31; Simultaneously, gear infringement back easy accessibility is convenient to the maintenance and the maintenance of equipment, has reduced the maintenance cost of equipment.
The transmitting assemblies that the utility model provided comprises the rotating shaft 5 that is fixedly connected with said output shaft, and the end of said rotating shaft 5 has first gear 6, and 6 outer gearings of said first gear have second gear 7, and said second gear 7 is installed on said small coning gear shaft 3; The outputting power of gearbox 2 passes to rotating shaft 5 through output shaft and cooperating of rotating shaft 5; Thereby give first gear 6 in the rotating shaft 5 with transmission of power; First gear 6 and second gear 7 are through both outer gearing transferring power; Second gear 7 is given small coning gear shaft 3 with the installation of small coning gear shaft 3 with transmission of power, and through the engagement outputting power of bevel pinion 31 with bevel gear wheel 4; The structure of this kind transmitting assemblies is comparatively simple, and cost of production is lower.
Above-mentioned rotating shaft 5 can be gear shaft, and this moment, said first gear 6 promptly was formed at this gear the tip of the axis, because the external diameter of first gear 6 is less, the form processing of making gear shaft is comparatively convenient.Apparently, rotating shaft 5 is not limited to the form of gear shaft, and it also can be general multidiameter shaft, and at this moment, the end of rotating shaft 5 is equipped with above-mentioned first gear 6 through flat key.
In the rotating shaft 5 back-up ring 8 can be installed, said back-up ring 8 is higher than the inner ring of said first gear 6 diametrically, and the position of said back-up ring 8 in said rotating shaft 5 be positioned at the outside of said first gear 6, and the outside is meant the side of rotating shaft 5 away from gearbox 2; Through back-up ring 8 is that first gear 6 provides axially locating, has improved the reliability of positioning of first gear 6.
Rotating shaft 5 can be connected through spline with output shaft, also can connect through flat key, and theoretically, rotating shaft 5 also can be integral structure with output shaft.
Above-mentioned second gear 7 also can be connected through spline with small coning gear shaft 3, can also connect through flat key.
Above-mentioned first gear 6 and second gear 7 can be straight toothed spur gear, so that manufacturing, two gears also are not limited to straight toothed spur gear, also can be other forms of gear, for example helical gear etc.
Transmitting assemblies also is not limited to said structure, also can use in related domain conventional use other can change the transmitting assemblies of transmission direction, worm couple etc. for example.
Except above-mentioned central transmission device, the utility model also provides a kind of bulldozer that comprises above-mentioned central transmission device, and other each several part structures of this bulldozer please refer to existing technology, repeat no more at this.
More than a kind of bulldozer and central transmission device thereof that the utility model provided have been carried out detailed introduction.Used concrete example among this paper the principle and the mode of execution of the utility model are set forth, above embodiment's explanation just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (8)
1. central transmission device that is used for bulldozer, comprise small coning gear shaft (3) that the output shaft with gearbox (2) is in transmission connection and with said small coning gear shaft (3) on the bevel gear wheel (4) of bevel pinion (31) engagement; It is characterized in that said small coning gear shaft (3) integral body is positioned at the outside of said gearbox (2), said bevel pinion (31) is in transmission connection through the transmitting assemblies that is arranged between the two with said output shaft.
2. the central transmission device that is used for bulldozer according to claim 1; It is characterized in that; Said transmitting assemblies comprises the rotating shaft (5) that is fixedly connected with said output shaft; The end of said rotating shaft (5) has first gear (6), and said first gear (6) outer gearing has second gear (7), and said second gear (7) is installed on said small coning gear shaft (3).
3. the central transmission device that is used for bulldozer according to claim 2 is characterized in that, said rotating shaft (5) is a gear shaft, and said first gear (6) is formed at this gear the tip of the axis.
4. the central transmission device that is used for bulldozer according to claim 2; It is characterized in that; Back-up ring (8) is installed in the said rotating shaft (5); Said back-up ring (8) is higher than the inner ring of said first gear (6) diametrically, and the position of said back-up ring (8) in said rotating shaft (5) is positioned at the outside of said first gear (6).
5. the central transmission device that is used for bulldozer according to claim 2 is characterized in that, said rotating shaft (5) is connected with said output shaft spline.
6. the central transmission device that is used for bulldozer according to claim 2 is characterized in that, said second gear (7) is connected with said small coning gear shaft (3) spline.
7. according to each described central transmission device that is used for bulldozer of claim 2 to 6, it is characterized in that said first gear (6) and said second gear (7) are straight toothed spur gear.
8. a bulldozer comprises speed changer, steering clutch and is installed on the central transmission device between said speed changer and the steering clutch, it is characterized in that, said central transmission device is like each described central transmission device of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201602940U CN202545703U (en) | 2012-04-16 | 2012-04-16 | Bulldozer and central transmission device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201602940U CN202545703U (en) | 2012-04-16 | 2012-04-16 | Bulldozer and central transmission device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545703U true CN202545703U (en) | 2012-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201602940U Expired - Fee Related CN202545703U (en) | 2012-04-16 | 2012-04-16 | Bulldozer and central transmission device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704490A (en) * | 2016-12-29 | 2017-05-24 | 西安理工大学 | Cross type straight-tooth bevel gear power distributing transmission device |
-
2012
- 2012-04-16 CN CN2012201602940U patent/CN202545703U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704490A (en) * | 2016-12-29 | 2017-05-24 | 西安理工大学 | Cross type straight-tooth bevel gear power distributing transmission device |
| CN106704490B (en) * | 2016-12-29 | 2023-03-14 | 西安理工大学 | Crossed straight bevel gear power split transmission device |
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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: 20121121 Termination date: 20210416 |