CN201963855U - Speed change operating mechanism for engineering machinery - Google Patents
Speed change operating mechanism for engineering machinery Download PDFInfo
- Publication number
- CN201963855U CN201963855U CN2011200268178U CN201120026817U CN201963855U CN 201963855 U CN201963855 U CN 201963855U CN 2011200268178 U CN2011200268178 U CN 2011200268178U CN 201120026817 U CN201120026817 U CN 201120026817U CN 201963855 U CN201963855 U CN 201963855U
- Authority
- CN
- China
- Prior art keywords
- gear
- spur
- shaft assembly
- speed change
- operating mechanism
- 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
Links
Abstract
The utility model belongs to the technical field of mechanical speed change operating mechanism, which relates to a speed change operating mechanism for engineering machinery. The speed change operating mechanism mainly comprises a driving bevel gear (9), a spur hear shaft assembly (10), a spur rack and a casing (1), wherein the driving bevel gear (9) arranged on a spur gear shaft (5) is meshed with the spur hear shaft assembly (10) to form a gear pair; the spur gear shaft assembly (10) fixed on the casing (1) is connected with the spur rack positioned in a rack casing (13); the spur gear is connected with a gearbox through a flexible shaft; the spur gear shaft (5) is provided with a handle seat and a thread sleeve (2) which is used for adjusting the backlash between the driving bevel gear and the spur hear shaft assembly; a shift protecting hood (14) is arranged on the casing and the speed change operating mechanism is fixed on a direction machine column. According to the speed change operating mechanism, the space limitation is effectively improved; by using the meshing transmission of the gear, a flexible pulling rope is ensured to be more reasonable and high stability in driving and wear resistance are achieved; and the service life is prolonged to a certain degree.
Description
Technical field
The utility model belongs to engineering machinery speed change manipulation technology field, relates generally to a kind of engineering machinery selector gear.
Background technique
In recent years, the selector gear of domestic construction machinery industry generally adopts hard bindiny mechanism to finish the gear shift action, because the gearbox delivery valve is that directly pulling type divides II, I, sky, four actions of reverse gear, the hard gear shift principle that connects mainly passes to hinged rocking arm in the hard connection by Joystick, change the ouput force direction by hinged rocking arm again, finally control the gearbox take-off lever by lever step by step. the main drawback of this mechanism is: it is bigger 1, to take up room, 2, use serious wear behind the some cycles, 3, need time-based maintenance lubricated.
Technological scheme
For solving the problems of the technologies described above, the purpose of this utility model is to propose a kind of engineering machinery selector gear.
For finishing foregoing invention purpose the utility model by the following technical solutions:
A kind of engineering machinery selector gear, described selector gear mainly comprise driving bevel gear, spur gear shaft assembly, spur rack and housing; The described driving bevel gear that is arranged on the straight-tooth wheel shaft formation gear pair that is meshed with the spur gear shaft assembly; The described spur gear shaft assembly that is fixed on the housing links to each other with the spur rack that is positioned at the tooth bar sleeve pipe, the end of described spur rack have with flexible axle on the outside thread kissing internal thread of joining, on the delivery valve that spur rack that is connected as a single entity by screw thread and flexible axle are connected to gearbox, constitute structure by the action of gear pair control gearbox; Described straight-tooth wheel shaft is provided with handle set and is used to regulate the silk braid of driving bevel gear and spur gear shaft assembly back lash; Described silk braid is fixed on the housing by screw thread, and by nut silk braid and straight-tooth wheel shaft is fastened as one, and the described handle set that is positioned at the nut upper end links to each other with operating grip; Described housing is provided with the gear guard shield that is used to protect selector gear; Described selector gear is fixed on the direction column.
Front-end face at described housing has the R shape groove that is complementary with direction column diameter.
The engineering machinery selector gear that the utility model proposes, the spur gear shaft assembly is fixed on and is cantilever beam structure on the housing, has effectively improved limited space, and the gear engagement transmission makes soft drawn rope trend more reasonable, transmission is more steady, wear-resisting, has improved working life to a certain extent; And general assembly seals after evenly smearing the lubricating grease adjustment during assembling, and is non-maintaining and lubricated
Description of drawings
Fig. 1 is a plan view of the present utility model.
Fig. 2 is the plan view of Fig. 1.
Among the figure: 1, housing, 2, silk braid, 3, packing ring, 4,6,11, nut, 5, the straight-tooth wheel shaft, 7, handle set, 8, operating grip, 9, driving bevel gear, 10, the spur gear shaft assembly, 12, bolt, 13, the tooth bar sleeve pipe, 14, the gear guard shield.
Embodiment
With the embodiment who provides the utility model is illustrated in conjunction with the accompanying drawings:
As shown in Figure 1 and Figure 2, a kind of engineering machinery selector gear, described selector gear mainly comprise driving bevel gear 9, spur gear shaft assembly 10, spur rack and housing 1; The described driving bevel gear 9 that is arranged on the straight-tooth wheel shaft 5 formation gear pair that is meshed with spur gear shaft assembly 10; Described spur gear shaft assembly 10, be contained on the housing 1 by bolt 12, and fixing by nut 11; Described spur gear shaft assembly 10 links to each other with the spur rack that is positioned at tooth bar sleeve pipe 13, the end of described spur rack have with flexible axle on the outside thread kissing internal thread of joining, on the delivery valve that spur rack that is connected as a single entity by screw thread and flexible axle are connected to gearbox, constitute structure by the action of gear pair control gearbox; Described straight-tooth wheel shaft 5 is provided with handle set and is used to regulate the silk braid 2 of driving bevel gear and spur gear shaft assembly back lash; Described silk braid 2 is fixed on the housing 1 by screw thread, and by nut 4 silk braid 2 and straight-tooth wheel shaft 5 is fastened as one, and regulates the back lash of driving bevel gear 9 and spur gear shaft assembly 10 by regulating the upper-lower position of adjustable silk braid 2 on straight-tooth wheel shaft 5; Described handle set 7 links to each other with operating grip 8; Described handle set 7 is positioned at the upper end of set screw nut 4, and fixing by nut 6; Described housing 1 is provided with the gear guard shield 14 that is used to protect selector gear; Described gear guard shield 14 is connected with housing 1 by rivet; Described selector gear is fixed on the direction column; Front-end face at described housing 1 has the R shape groove that is complementary with direction column diameter.
Claims (2)
1. engineering machinery selector gear, it is characterized in that: described selector gear mainly comprises driving bevel gear (9), spur gear shaft assembly (10), spur rack and housing (1); The described driving bevel gear (9) that is arranged on the straight-tooth wheel shaft (5) the formation gear pair that is meshed with spur gear shaft assembly (10); The described spur gear shaft assembly (10) that is fixed on the housing (1) links to each other with the spur rack that is positioned at tooth bar sleeve pipe (13), the end of described spur rack have with flexible axle on the outside thread kissing internal thread of joining, on the delivery valve that spur rack that is connected as a single entity by screw thread and flexible axle are connected to gearbox, constitute structure by the action of gear pair control gearbox; Described straight-tooth wheel shaft (5) is provided with handle set and is used to regulate the silk braid (2) of driving bevel gear and spur gear shaft assembly back lash; Described silk braid (2) is fixed on (1) on the housing by screw thread, and by nut (4) silk braid (2) and straight-tooth wheel shaft (5) is fastened as one, and the described handle set (7) that is positioned at the nut upper end links to each other with operating grip (8); Described housing (1) is provided with the gear guard shield (14) that is used to protect selector gear; Described selector gear is fixed on the direction column.
2. engineering machinery selector gear according to claim 1 is characterized in that: the front-end face at described housing (1) has the R shape groove that is complementary with direction column diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200268178U CN201963855U (en) | 2011-01-20 | 2011-01-20 | Speed change operating mechanism for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200268178U CN201963855U (en) | 2011-01-20 | 2011-01-20 | Speed change operating mechanism for engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963855U true CN201963855U (en) | 2011-09-07 |
Family
ID=44526391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200268178U Expired - Fee Related CN201963855U (en) | 2011-01-20 | 2011-01-20 | Speed change operating mechanism for engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963855U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615527A (en) * | 2013-12-02 | 2014-03-05 | 洛阳市黄河软轴控制器股份有限公司 | Single-handle type multifunctional control mechanism |
| CN103791080A (en) * | 2014-01-20 | 2014-05-14 | 洛阳市黄河软轴控制器股份有限公司 | Electric control variable speed gear selecting control system of road roller |
-
2011
- 2011-01-20 CN CN2011200268178U patent/CN201963855U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615527A (en) * | 2013-12-02 | 2014-03-05 | 洛阳市黄河软轴控制器股份有限公司 | Single-handle type multifunctional control mechanism |
| CN103791080A (en) * | 2014-01-20 | 2014-05-14 | 洛阳市黄河软轴控制器股份有限公司 | Electric control variable speed gear selecting control system of road roller |
| CN103791080B (en) * | 2014-01-20 | 2016-02-24 | 洛阳市黄河软轴控制器股份有限公司 | Road roller automatically controlled speed change block selecting control system |
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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: 20110907 Termination date: 20180120 |