CN214305092U - Steel cord double-speed bridge box speed reducer - Google Patents
Steel cord double-speed bridge box speed reducer Download PDFInfo
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- CN214305092U CN214305092U CN202023030575.8U CN202023030575U CN214305092U CN 214305092 U CN214305092 U CN 214305092U CN 202023030575 U CN202023030575 U CN 202023030575U CN 214305092 U CN214305092 U CN 214305092U
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Abstract
The utility model relates to a speed reducer field provides steel cord double speed case speed reducer of passing a bridge. Two pairs of gear pairs are arranged on the input shaft and the first intermediate shaft, and the two pairs of gear pairs are switched by a toggle mechanism to form transmission with two reduction ratios; two output gears are arranged on the output shaft, transmission gears meshed with the two output gears are respectively arranged on the second intermediate shaft and the third intermediate shaft, and the output shafts are sequentially output in a transmission manner through the three-stage middle shafts or sequentially output in a transmission manner through the two-stage intermediate shafts by switching through a toggle mechanism, so that bidirectional output in the forward direction and the reverse direction is formed. According to the technical scheme, double-speed bidirectional output is realized through one speed reducer, and the gap bridge requirement of steel cord production is met.
Description
Technical Field
The utility model relates to a speed reducer field, concretely relates to steel cord double speed gap bridge case speed reducer.
Background
In the steel cord middle-pulling system, a power machine transmits power to an actuating mechanism through a bridge box. In the production of steel cords, different torques and different rotational directions of the output are usually required and a fast switching is ensured. The existing speed reducer usually realizes the switching of two or more speed ratios through a toggle mechanism, and cannot realize the simultaneous switching of the speed ratios and the rotating directions.
Disclosure of Invention
For the demand that satisfies the velocity ratio in the steel cord production process and the fast switch over of direction of delivery, the utility model aims to provide a steel cord double speed crosses bridge case speed reducer.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a steel cord double-speed gap bridge box speed reducer comprises a box body, wherein an input shaft, a three-stage intermediate shaft and an output shaft are supported in the box body by a bearing, a spline sleeve is installed and connected on the input shaft, a pair of input gears are fixedly installed on the spline sleeve, an intermediate gear and two transmission gears corresponding to the input gears are fixedly installed on a first intermediate shaft, an intermediate gear and a transmission gear are installed on a second intermediate shaft, an intermediate gear and a transmission gear are fixedly installed on a third intermediate shaft, a spline sleeve is installed and connected on the output shaft, a pair of output gears corresponding to the transmission gears on the second intermediate shaft and the third intermediate shaft are fixedly installed on the spline sleeve, the spline sleeves on the input shaft and the output shaft are respectively and correspondingly connected with a toggle mechanism, and in the stroke range of the toggle mechanism corresponding to the spline sleeve on the input shaft, a pair of input gears are respectively and are not meshed with the two transmission gears on the first intermediate shaft simultaneously, meshing transmission forming two transmission ratios; the first intermediate shaft and the intermediate gear on the second intermediate shaft are in meshing transmission; the second intermediate shaft and the intermediate gear on the third intermediate shaft are in meshing transmission, and in the stroke range of the shifting mechanism corresponding to the spline sleeve on the output shaft, a pair of output gears on the output shaft are not meshed with the transmission gears on the second intermediate shaft and the third intermediate shaft at the same time respectively, so that two kinds of rotary output are formed.
Furthermore, the toggle mechanism comprises a rotating shaft, a handle, a shifting lever and a cylindrical pin, the rotating shaft is rotatably supported on the side wall of the box body, the handle is fixedly installed at the extending end of the rotating shaft, the shifting lever is fixedly installed at the extending end of the rotating shaft, the cylindrical pin is installed at the tail end of the shifting lever, an annular groove is processed on the outer circular surface of the spline sleeve, and the cylindrical pin is matched with the groove.
Furthermore, the tail end of the handle is provided with a spring pin, and a limit hole matched with the spring pin is processed on the side wall of the box body.
After taking above technical scheme, the beneficial effects of the utility model are that: two pairs of gear pairs are arranged on the input shaft and the first intermediate shaft, and the two pairs of gear pairs are switched by a toggle mechanism to form transmission with two reduction ratios; two output gears are arranged on the output shaft, transmission gears meshed with the two output gears are respectively arranged on the second intermediate shaft and the third intermediate shaft, and the output shafts are sequentially output in a transmission manner through the three-stage middle shafts or sequentially output in a transmission manner through the two-stage intermediate shafts by switching through a toggle mechanism, so that bidirectional output in the forward direction and the reverse direction is formed. According to the technical scheme, double-speed bidirectional output is realized through one speed reducer, and the gap bridge requirement of steel cord production is met.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a schematic structural diagram of the toggle mechanism.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:
as shown in the figure, the steel cord double-speed bridge box speed reducer comprises a box body 1, an input shaft 2, a first intermediate shaft 3, a second intermediate shaft 4, a third intermediate shaft 5 and an output shaft 6 are supported in the box body 1 through bearings, spline sleeves 7 are respectively sleeved on the input shaft 2 and the output shaft 6, and the spline sleeves 7 are connected with corresponding shafts through splines and slide on the corresponding shafts. Coaxial annular connecting grooves 8 are machined in the outer circular surface of the spline housing 7, the left side surface and the right side surface of the box body 1 are respectively provided with a shifting mechanism 9, and the shifting mechanism 9 and the annular connecting grooves 8 are connected to shift the spline housing 7 to axially slide. A large input gear 10 and a small input gear 11 are fixedly arranged on a spline sleeve 7 of the input shaft 2 through keys, a first intermediate gear 12 and a pair of transmission gears 13 corresponding to the large input gear and the small input gear are fixedly arranged on the first intermediate shaft 3, a second intermediate gear 14 and a transmission gear 15 are arranged on the second intermediate shaft 4, a third intermediate gear 16 and a transmission gear 17 are fixedly arranged on a third intermediate shaft 5, the transmission gears on the second intermediate shaft 4 and the third intermediate shaft 5 are the same, two identical output gears 18 are arranged on the spline sleeve of the output shaft 6, the intermediate gears 12,14 and 16 on the first intermediate shaft 3, the second intermediate shaft 3, the third intermediate shaft 4 and the output shaft 5 are sequentially meshed for transmission, the input shaft 2, the first intermediate shaft 3, the second intermediate shaft 4 and the output shaft 6 are positioned on the same plane, the third intermediate shaft 5 is positioned above the second intermediate shaft 4 and the output shaft 6, two output gears 18 on the output shaft 6 correspond to the two transmission gears 15,17 on the second and third countershafts 4,5, respectively.
The toggle mechanism 9 comprises a rotating shaft 19, a handle 20, a toggle lever 21 and a cylindrical pin 22, the rotating shaft 19 is rotatably supported on the side wall of the box body 1, the handle 20 is fixedly installed at the extending end of the rotating shaft 19, the toggle lever 21 is fixedly installed at the extending end of the rotating shaft 19, the cylindrical pin 22 is installed at the tail end of the toggle lever 21 and is matched with an annular connecting groove 8 machined on the outer circular surface of the spline housing 7, and the spline housing 7 is toggled to slide when the handle 20 rotates. In order to enable the gears on the spline housing 7 to be completely meshed with the corresponding gears, limiting holes 23 corresponding to two connection states are processed on the outer wall of the box body 1, a spring pin 24 is installed at the tail end of the handle 20, and after the spline housing 7 is shifted to a correct position, the spring pin 24 is inserted into the limiting holes 23 to form a limiting position, so that the spline housing 7 is prevented from sliding in a transmission process.
When the toggle mechanism corresponding to the input shaft 2 is toggled to the front end, the small input gear 11 of the input shaft 2 is in meshing transmission with the corresponding transmission gear 13 on the first intermediate shaft 3, at the moment, the large input gear 10 is separated from the corresponding transmission gear, when the toggle mechanism corresponding to the input shaft 2 is toggled to the rear end, the small input gear 11 is separated from the corresponding transmission gear, and the large input gear 10 is in meshing transmission with the corresponding transmission gear to form double reduction ratio driving.
When the toggle mechanism corresponding to the output shaft 6 is toggled to the front end, one output gear on the output shaft 6 is meshed with the transmission gear on the second intermediate shaft 4, and the other output gear on the output shaft 6 is separated from the transmission gear on the third intermediate shaft 5, so that reverse output of the first intermediate shaft 3, the second intermediate shaft 4 and the output shaft 6 which are sequentially driven by the input shaft 2 is formed; when the toggle mechanism corresponding to the output shaft 6 is toggled to the rear end, the output gear on the output shaft 6 corresponding to the transmission gear on the third intermediate shaft 5 is meshed with the transmission gear on the third intermediate shaft 5, and the other output gear on the output shaft 6 is separated from the transmission gear on the second output shaft 4, so that the input shaft 2 sequentially drives the first intermediate shaft 3, the second intermediate shaft 4, the third intermediate shaft 5 and the output shaft 6 to output in the same direction.
Claims (3)
1. A steel cord double-speed gap bridge box speed reducer comprises a box body, wherein an input shaft, a three-stage intermediate shaft and an output shaft are supported in the box body by a bearing, and is characterized in that a spline sleeve is arranged and connected on the input shaft, a pair of input gears are fixedly arranged on the spline sleeve, a first intermediate shaft is fixedly provided with an intermediate gear and two transmission gears corresponding to the input gears, a second intermediate shaft is provided with an intermediate gear and a transmission gear, a third intermediate shaft is fixedly provided with an intermediate gear and a transmission gear, a spline sleeve is arranged and connected on the output shaft, a pair of output gears corresponding to the transmission gears on the second intermediate shaft and the third intermediate shaft are fixedly arranged on the spline sleeve, the spline sleeves on the input shaft and the output shaft are respectively and correspondingly connected with shifting mechanisms, and the shifting mechanisms corresponding to the spline sleeves on the input shaft are within the stroke range of the shifting mechanisms, the pair of input gears are respectively meshed with the two transmission gears on the first intermediate shaft at different times to form meshed transmission with two transmission ratios; the first intermediate shaft and the intermediate gear on the second intermediate shaft are in meshing transmission; the second intermediate shaft and the intermediate gear on the third intermediate shaft are in meshing transmission, and in the stroke range of the shifting mechanism corresponding to the spline sleeve on the output shaft, a pair of output gears on the output shaft are not meshed with the transmission gears on the second intermediate shaft and the third intermediate shaft at the same time respectively, so that two kinds of rotary output are formed.
2. The steel cord double-speed bridge box speed reducer according to claim 1, wherein the toggle mechanism comprises a rotating shaft, a handle, a toggle rod and a cylindrical pin, the rotating shaft is rotatably supported on the side wall of the box body, the handle is fixedly arranged at the extending end of the rotating shaft, the toggle rod is fixedly arranged at the extending end of the rotating shaft, the cylindrical pin is arranged at the tail end of the toggle rod, an annular groove is processed on the outer circular surface of the spline sleeve, and the cylindrical pin is matched with the groove.
3. The steel cord double-speed gap bridge box speed reducer according to claim 2, wherein a spring pin is mounted at the tail end of the handle, and a limiting hole matched with the spring pin is processed on the side wall of the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023030575.8U CN214305092U (en) | 2020-12-16 | 2020-12-16 | Steel cord double-speed bridge box speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023030575.8U CN214305092U (en) | 2020-12-16 | 2020-12-16 | Steel cord double-speed bridge box speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214305092U true CN214305092U (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023030575.8U Active CN214305092U (en) | 2020-12-16 | 2020-12-16 | Steel cord double-speed bridge box speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214305092U (en) |
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2020
- 2020-12-16 CN CN202023030575.8U patent/CN214305092U/en active Active
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