CN215334261U - Positioning device of hydraulic torque converter - Google Patents
Positioning device of hydraulic torque converter Download PDFInfo
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- CN215334261U CN215334261U CN202120297804.8U CN202120297804U CN215334261U CN 215334261 U CN215334261 U CN 215334261U CN 202120297804 U CN202120297804 U CN 202120297804U CN 215334261 U CN215334261 U CN 215334261U
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Abstract
The utility model provides a positioning device of a hydraulic torque converter, which comprises an input primary gear, an input secondary gear sleeved outside the input primary gear and a guide wheel seat sleeved outside the input secondary gear, wherein the input primary gear is connected with the input secondary gear; one end of the input primary gear is connected with the first ball bearing, and the other end of the input primary gear is connected with the primary turbine; a first rotary support is arranged between the input primary gear and the input secondary gear and is positioned at one end of the input primary gear spline support; and a second rotary support is arranged between the guide wheel seat and the input secondary gear. The utility model has the advantages that: the first rotary support and the second rotary support are matched to effectively support the two ends of the input first-stage gear and the two ends of the input second-stage gear, so that the service lives of the overrunning clutch assembly and the whole gearbox can be greatly prolonged.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the field of torque converters and relates to a positioning device of a hydraulic torque converter.
[ background of the utility model ]
The planetary gearbox is provided with an overrunning clutch and a double-turbine torque converter, is a gearbox torque converter assembly commonly adopted by the existing engineering machinery, is widely applied to ZL30, ZL40, ZL50 and ZL60 type loaders, 80% of manufacturers of the domestic engineering machinery adopt the gearbox, makes an important contribution to the development of the Chinese engineering machinery, and keeps more than 150 machines in the market at present. Referring to fig. 1 to 4, the planetary transmission employs a twin-turbine torque converter, and the main transmission principle is as follows: the middle input shaft 11 'of the overrunning clutch assembly is meshed with the input secondary gear 21', and the input secondary gear 21 'and the secondary turbine 22' of the torque converter assembly are connected with output power; the inner ring cam 12' of the overrunning clutch assembly is connected with the middle input shaft 11' through a bolt 13', the outer ring gear 14' of the overrunning clutch assembly is meshed with the input first-stage gear 23', and the input first-stage gear 23' is connected with the first-stage turbine 24' of the torque converter assembly to output power.
The working principle of the overrunning clutch is as follows: when the loader runs at high speed and light load, because the rotating speed of the inner ring cam 12 'with light load is higher than that of the outer ring gear 14', the balls 15 'between the inner ring cam 12' and the outer ring gear 14 'are in a disengaged state, the outer ring gear 14' is in an idle state, only the middle input shaft 11 'connected with the inner ring cam 12' by the bolt 13 'outputs power, and the outer ring gear 14' of the overrunning clutch does not output power; when the loader is operated under the low-speed and heavy-load working condition, the middle input shaft 11 'meshed with the input secondary gear 21' is subjected to the influence of external heavy load, the rotating speed is reduced, the inner ring cam 12 'and the middle input shaft 11' are connected together through the bolt 13', the inner ring cam 12' and the outer ring gear 14 'of the overrunning clutch are wedged together through the balls 15', and then the first-stage turbine 24 'and the second-stage turbine 22' of the torque converter connected with the input first-stage gear 23 'and the input secondary gear 21' are actually integrated to act together to output power to the outer ring gear 14 'and the middle input shaft 11' of the overrunning clutch so as to increase the capacity of the torque converter to overcome external resistance. When the external load is reduced to increase the speed of the intermediate input shaft 11' of the overrunning clutch and the inner ring cam 12' connected by the bolt 13' to exceed the rotating speed of the outer ring gear 14', the balls 15' between the outer ring gear 14' and the inner ring cam 12' of the overrunning clutch are in a separation and disengagement state again. The overrunning clutch enables the balls 15' between the outer ring gear 14' and the inner ring cam 12' of the overrunning clutch to be continuously wedged and separated along with the change of external load, so that the traction requirement of the engineering machinery is met.
From the positioning structure of the input first-stage gear and the input second-stage gear, the input first-stage gear 23 'and the first-stage turbine 24' are connected through a spline to output power, the right end of the input first-stage gear 23 'is supported by a first ball bearing 25', the left end of the input first-stage gear is supported by the spline of the first-stage turbine 24', and the first rotary oil seal 26' is used for sealing hydraulic transmission oil of the hydraulic torque converter; the right end of the input secondary gear 21 'is supported by the second ball bearing 27', the left end is supported by the spline of the secondary turbine 22', and the hydraulic transmission oil of the torque converter is sealed by the second rotary oil seal 28'. Since the left ends of the input primary gear 23 'and the input secondary gear 21' are supported by the splines of the primary turbine 24 'and the secondary turbine 22', and the spline connection is a gap and is actually a floating support, the input primary gear 23 'and the input secondary gear 21' will jump when transmitting the torque of the primary turbine 24 'and the secondary turbine 22', which will generate excessive axial force to the input primary gear 23 'and the input secondary gear 21', and the excessive axial force will be transmitted to the outer ring gear 14 'of the overrunning clutch assembly engaged with the input primary gear 23' and the middle input shaft 11 'of the overrunning clutch assembly engaged with the input secondary gear 21'. The generation of excessive axial force can cause the inclination of the balls 15 'between the inner ring cam 12' and the outer ring gear 14 'in the overrunning clutch assembly when the balls are wedged to transmit torque, so that the overrunning clutch fails, which is mainly caused by the high failure rate of the existing overrunning clutch of the planetary hydraulic transmission gearbox, the jumping of the input secondary gear 21' can cause the leakage amount of hydraulic transmission oil to increase due to the untight sealing of the second rotary seal of the guide wheel seat and the input secondary gear 21', the jumping of the input primary gear 23' and the input secondary gear 21 'can cause the untight sealing of the first rotary oil seal 26' between the input primary gear 23 'and the input secondary gear 21' to increase the leakage amount of hydraulic transmission oil, the increase of the leakage amount of hydraulic transmission oil can cause the insufficient lubricating oil amount of the whole gearbox and influence the output torque characteristic of the hydraulic torque converter, and cause the early damage of parts and the reduction of the transmission efficiency. In view of the above problems, the present inventors have conducted extensive studies and have made the present invention.
[ Utility model ] content
The technical problem to be solved by the utility model is to provide a positioning device of a hydraulic torque converter, which solves the problems that in the existing hydraulic torque converter, because one end of an input primary gear and one end of an input secondary gear are only supported by a spline, the torque can jump when being transmitted, an overrunning clutch is easy to lose efficacy, the service life of a gearbox is shortened, and the transmission efficiency is reduced.
The utility model is realized by the following steps: a positioning device of a hydraulic torque converter comprises an input primary gear and an input secondary gear sleeved outside the input primary gear; one end of the input primary gear is connected with the first ball bearing, and the other end of the input primary gear is connected with the primary turbine; a first rotary support is arranged between the input primary gear and the input secondary gear and is located at one end of the input primary gear spline support.
Further, the device also comprises a guide wheel seat sleeved outside the input secondary gear; one end of the input secondary gear is connected with the second ball bearing, and the other end of the input secondary gear is connected with the secondary turbine; and a second rotary support is arranged between the guide wheel seat and the input secondary gear, and the second rotary support is positioned at one end of the spline support of the input secondary gear.
Further, the first rotary support is a first roller pin annularly arranged between the input primary gear and the input secondary gear.
Further, the outer surface of the input primary gear is provided with a first finish machining locating surface matched with the first rolling needle.
Further, the inner surface of the input secondary gear is provided with a second fine machining positioning surface matched with the first rolling needle.
Further, the second rotary support is a second roller pin annularly arranged between the guide wheel seat and the input secondary gear.
Further, the outer surface of the input secondary gear is provided with a third fine machining positioning surface matched with the second rolling needle.
Further, the inner surface of the guide wheel seat is provided with a fourth finish machining positioning surface matched with the second rolling needle.
Furthermore, a first rotary oil seal for sealing hydraulic transmission oil is arranged between the input primary gear and the input secondary gear.
Furthermore, a second rotary oil seal for sealing hydraulic transmission oil is arranged between the guide wheel seat and the input secondary gear.
The utility model has the advantages that:
1. the first rotary support is arranged between the input primary gear and the input secondary gear, so that two ends of the input primary gear can be effectively supported through the first ball bearing and the first rotary support, the stability of the input primary gear in the process of transmitting torque and the reliability of an overrunning clutch assembly meshed with the input primary gear are improved, and the input primary gear is ensured not to jump when transmitting the torque of the input primary gear; therefore, the excessive axial force generated by the input first-stage gear and the failure of the overrunning clutch assembly can be avoided, and the service life of the overrunning clutch assembly is prolonged; meanwhile, hydraulic transmission oil leakage between the input primary gear and the input secondary gear caused by jumping is avoided, early damage to parts of the gearbox and reduction of transmission efficiency are caused, and the service life of the whole gearbox is prolonged.
2. A second rotary support is also arranged between the guide wheel seat and the input secondary gear, so that two ends of the input secondary gear can be effectively supported through a second ball bearing and the second rotary support, the stability of the input secondary gear in the process of transmitting torque and the reliability of an overrunning clutch assembly meshed with the input secondary gear are improved, and the input secondary gear is ensured not to jump when transmitting the torque of a secondary turbine; therefore, the excessive axial force generated by the input secondary gear and the failure of the overrunning clutch assembly can be avoided, and the service life of the overrunning clutch assembly is prolonged; meanwhile, hydraulic transmission oil leakage between the guide wheel seat and the input secondary gear caused by jumping is avoided, early damage to parts of the gearbox and reduction of transmission efficiency are caused, and the service life of the whole gearbox is prolonged.
3. The first rotary support and the second rotary support are matched to effectively support the two ends of the input first-stage gear and the two ends of the input second-stage gear, so that the service lives of the overrunning clutch assembly and the whole gearbox can be greatly prolonged.
[ description of the drawings ]
The utility model will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a prior art planetary transmission;
FIG. 2 is a schematic illustration of a portion of a prior art torque converter assembly;
FIG. 3 is a schematic view of a portion of a prior art overrunning clutch assembly;
FIG. 4 is a left side elevational view of a portion of a prior art overrunning clutch assembly;
FIG. 5 is a schematic structural diagram of a positioning device of a torque converter according to the present invention;
FIG. 6 is a side view of the positioning device of the present invention;
FIG. 7 is an enlarged view of a portion of the first rotary support of the present invention;
fig. 8 is a partially enlarged view of a second rotation support in the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 5 to 8, a preferred embodiment of a positioning device of a torque converter of the present invention includes an input primary gear 1 and an input secondary gear 2 sleeved outside the input primary gear 1; one end of the input primary gear 1 is connected with a first ball bearing 3, and the other end of the input primary gear 1 is connected with a primary turbine 4; a first rotary support 5 is arranged between the input primary gear 1 and the input secondary gear 2, and the first rotary support 5 is located at one end of the input primary gear 1 in a spline supporting mode.
According to the utility model, the first rotary support 5 is arranged between the input primary gear 1 and the input secondary gear 2, so that when the device works specifically, two ends of the input primary gear 1 can be effectively supported through the first ball bearing 3 and the first rotary support 5, the stability of the input primary gear 1 in the process of transmitting torque and the reliability of an overrunning clutch assembly meshed with the input primary gear 1 are improved, and the input primary gear 1 is ensured not to jump when transmitting the torque of the input primary gear 4; therefore, by adopting the technical scheme of the utility model, the input first-stage gear 1 can be prevented from generating excessive axial force and causing the failure of the overrunning clutch assembly, and the service life of the overrunning clutch assembly is prolonged; meanwhile, hydraulic transmission oil leakage between the input primary gear 1 and the input secondary gear 2 caused by jumping is avoided, early damage to parts of the gearbox and reduction of transmission efficiency are caused, and the service life of the whole gearbox is prolonged.
In this embodiment, the device further comprises a guide wheel seat 6 sleeved outside the input secondary gear 2; one end of the input secondary gear 2 is connected with a second ball bearing 7, and the other end of the input secondary gear 2 is connected with a secondary turbine 8; and a second rotary support 9 is arranged between the guide wheel seat 6 and the input secondary gear 2, and the second rotary support 9 is positioned at one end of the spline support of the input secondary gear 2.
According to the utility model, the second rotary support 9 is arranged between the guide wheel seat 6 and the input secondary gear 2, so that when the device works specifically, two ends of the input secondary gear 2 can be effectively supported through the second ball bearing 7 and the second rotary support 9, the stability of the input secondary gear 2 in transmitting torque and the reliability of an overrunning clutch assembly meshed with the input secondary gear 2 are improved, and the input secondary gear 2 is ensured not to jump when transmitting the torque of the secondary turbine 8; therefore, by adopting the technical scheme of the utility model, the input secondary gear 2 can be prevented from generating excessive axial force and causing the failure of the overrunning clutch assembly, and the service life of the overrunning clutch assembly is prolonged; meanwhile, hydraulic transmission oil leakage between the guide wheel seat 6 and the input secondary gear 2 caused by jumping is avoided, early damage to parts of the gearbox and reduction of transmission efficiency are caused, and the service life of the whole gearbox is prolonged. The two ends of the input first-stage gear 1 and the two ends of the input second-stage gear 2 are effectively supported through the cooperation of the first rotary support 5 and the second rotary support 9, and the service lives of the overrunning clutch assembly and the whole gearbox can be greatly prolonged.
In the present embodiment, in order to improve the supporting effect, the first rotary support 5 is a first needle roller 51 annularly disposed between the input primary gear 1 and the input secondary gear 2. Because the needle roller is slender and compact in radial structure, the outer diameter of the needle roller is the smallest when the inner diameter size and the load capacity of the needle roller are the same as those of other types of bearings, and the needle roller is particularly suitable for a bearing structure with limited radial installation size.
In the present embodiment, in order to ensure that the input primary gear 1 can be effectively engaged with the first needle rollers 51, the outer surface of the input primary gear 1 has a first finish-machined locating surface 11 engaged with the first needle rollers 51.
In the present embodiment, in order to ensure that the input secondary gear 2 can be effectively engaged with the first needle rollers 51, the inner surface of the input secondary gear 2 has a second finished locating surface 21 engaged with the first needle rollers 51.
In this embodiment, in order to improve the supporting effect, the second rotation support 9 is a second needle roller 91 annularly disposed between the guide wheel seat 6 and the input secondary gear 2. Because the needle roller is slender and compact in radial structure, the outer diameter of the needle roller is the smallest when the inner diameter size and the load capacity of the needle roller are the same as those of other types of bearings, and the needle roller is particularly suitable for a bearing structure with limited radial installation size.
In this embodiment, to ensure that the input secondary gear 2 can be effectively engaged with the second roller pins 91, the outer surface of the input secondary gear 2 has a third fine positioning surface 22 engaged with the second roller pins 91.
In the present embodiment, in order to ensure that the guide wheel seat 6 can be effectively engaged with the second roller pin 91, the inner surface of the guide wheel seat 6 has a fourth finish-machined positioning surface 61 engaged with the second roller pin 91.
In the embodiment, a first rotary oil seal 101 for sealing hydraulic transmission oil is arranged between the input primary gear 1 and the input secondary gear 2, so that the hydraulic transmission oil between the input primary gear 1 and the input secondary gear 2 is prevented from leaking.
In this embodiment, a second rotary oil seal 102 for sealing hydraulic transmission oil is provided between the guide wheel seat 6 and the input secondary gear 2, so as to ensure that the hydraulic transmission oil between the guide wheel seat 6 and the input secondary gear 2 does not leak.
Although specific embodiments of the utility model have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the utility model, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the utility model, which is to be limited only by the appended claims.
Claims (10)
1. A positioning device of a torque converter is characterized in that: comprises an input primary gear and an input secondary gear sleeved outside the input primary gear; one end of the input primary gear is connected with the first ball bearing, and the other end of the input primary gear is connected with the primary turbine; a first rotary support is arranged between the input primary gear and the input secondary gear and is located at one end of the input primary gear spline support.
2. The positioning device for a torque converter according to claim 1, wherein: the guide wheel seat is sleeved outside the input secondary gear; one end of the input secondary gear is connected with the second ball bearing, and the other end of the input secondary gear is connected with the secondary turbine; and a second rotary support is arranged between the guide wheel seat and the input secondary gear, and the second rotary support is positioned at one end of the spline support of the input secondary gear.
3. The positioning device for a torque converter according to claim 1, wherein: the first rotary support is a first roller pin annularly arranged between the input primary gear and the input secondary gear.
4. A positioning device of a torque converter according to claim 3, characterized in that: the outer surface of the input primary gear is provided with a first finish machining positioning surface matched with the first rolling needle.
5. The positioning device for a torque converter according to claim 4, wherein: the inner surface of the input secondary gear is provided with a second finish machining positioning surface matched with the first roller pin.
6. The positioning device for a torque converter according to claim 2, wherein: the second rotary support is a second roller pin annularly arranged between the guide wheel seat and the input secondary gear.
7. The positioning device for a torque converter according to claim 6, wherein: the outer surface of the input secondary gear is provided with a third finish machining positioning surface matched with the second rolling needle.
8. The positioning device for a torque converter according to claim 7, wherein: and the inner surface of the guide wheel seat is provided with a fourth finish machining positioning surface matched with the second rolling needle.
9. The positioning device for a torque converter according to claim 1, wherein: and a first rotary oil seal for sealing hydraulic transmission oil is arranged between the input primary gear and the input secondary gear.
10. The positioning device for a torque converter according to claim 2, wherein: and a second rotary oil seal for sealing hydraulic transmission oil is arranged between the guide wheel seat and the input secondary gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120297804.8U CN215334261U (en) | 2021-02-02 | 2021-02-02 | Positioning device of hydraulic torque converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120297804.8U CN215334261U (en) | 2021-02-02 | 2021-02-02 | Positioning device of hydraulic torque converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334261U true CN215334261U (en) | 2021-12-28 |
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ID=79580544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120297804.8U Active CN215334261U (en) | 2021-02-02 | 2021-02-02 | Positioning device of hydraulic torque converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215334261U (en) |
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2021
- 2021-02-02 CN CN202120297804.8U patent/CN215334261U/en active Active
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