CN218670308U - Transmission structure with main and auxiliary driving automatic switching - Google Patents
Transmission structure with main and auxiliary driving automatic switching Download PDFInfo
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- CN218670308U CN218670308U CN202223073310.5U CN202223073310U CN218670308U CN 218670308 U CN218670308 U CN 218670308U CN 202223073310 U CN202223073310 U CN 202223073310U CN 218670308 U CN218670308 U CN 218670308U
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- overrunning
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Abstract
The utility model provides a transmission structure for automatic switching of main drive and auxiliary drive, which is used between a main drive device and an auxiliary drive device and comprises a main drive overrunning coupler, an output shaft, an auxiliary drive overrunning clutch, a variable transmission pair, an auxiliary drive input shaft and a coupler; the front end of the output shaft is connected with a main driving device through a main driving overrunning coupler, and the tail end shaft diameter of the output shaft is provided with an auxiliary driving overrunning clutch and is connected with the tail end of an auxiliary driving input shaft through a variable speed transmission pair so as to realize the transmission between the output shaft and the auxiliary driving input shaft; the front end of the auxiliary drive input shaft is connected with an auxiliary drive device through a coupler; the main driving overrunning coupler and the main driving device are kept static when the auxiliary driving device drives; and when the main driving device drives, the synchronous rotation with the main driving device is kept. Implement the utility model discloses, can solve the rotation problem of following of main drive arrangement among the auxiliary drive process.
Description
Technical Field
The utility model relates to a mechanical transmission technical field especially relates to a main transmission structure of assisting drive automatic switch-over.
Background
In the prior art, a main oil pump and an electric oil pump are generally matched for horizontal water pump bearing bush lubrication. Before the water pump is started, the electric oil pump needs to be started to lubricate the bearing bush, after the water pump is started, the main oil pump driven by the water pump driving device starts to work to provide lubricating oil for the bearing bush, and further after the main oil pump runs stably, the electric oil pump is stopped. However, the simultaneous operation of the main oil pump and the electric oil pump before the electric oil pump is stopped may generate a fluctuation in the oil pressure of the lubricating oil or a waste of energy.
At present, a transmission mechanism is adopted to connect a main drive and an auxiliary drive to drive the same oil pump, so that the oil pressure fluctuation phenomenon of the operation of the double pumps is avoided, but the main drive device has the problem of rotation following in the auxiliary drive process. For example, the utility model patent with the title of main and auxiliary driving gear box transmission structure and the utility model patent with the title of rotary kiln main and auxiliary transmission automatic switching device with the title of CN209705217U with the title of CN 202792926U with the title of CN 209are all given the installation of the overrunning clutch between the auxiliary driving motor and the input shaft, but still cannot solve the following rotation problem of the main driving device in the auxiliary driving process.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem that will solve lies in, provides a main and auxiliary drive automatic switch-over's transmission structure, can solve the rotation problem of following of main drive arrangement among the auxiliary drive process.
In order to solve the technical problem, an embodiment of the present invention provides a transmission structure for automatically switching between a main drive device and an auxiliary drive device, which includes a main drive overrunning coupler, an output shaft, an auxiliary drive overrunning clutch, a variable transmission pair, an auxiliary drive input shaft and a coupler; wherein the content of the first and second substances,
the front end of the output shaft is connected with the main driving device through the main driving overrunning coupler, and the tail end shaft diameter of the output shaft is provided with the auxiliary driving overrunning clutch and is connected with the tail end of the auxiliary driving input shaft through the variable speed transmission pair so as to realize the transmission between the output shaft and the auxiliary driving input shaft;
the front end of the auxiliary driving input shaft is connected with the auxiliary driving device through the coupler;
the main driving overrunning coupler keeps static with the main driving device when the auxiliary driving device drives; and the main driving overrunning coupler keeps synchronous rotation with the main driving device when the main driving device drives.
The rotating speed of the speed change transmission pair on the side facing the auxiliary drive overrunning clutch is lower than that on the side far away from the auxiliary drive overrunning clutch.
The auxiliary driving overrunning clutch and the auxiliary driving input shaft are kept static when the main driving device drives, so that the auxiliary driving device is in an idle state.
The auxiliary driving device is manually stopped or triggered to stop running through a newly-added speed measuring device.
Implement the embodiment of the utility model provides a, following beneficial effect has:
1. compared with the prior art, the transmission structure of the utility model keeps the output shaft static when the auxiliary driving device drives through the main driving overrunning coupler, so that the main driving device keeps static, thereby solving the following rotation problem of the main driving device in the auxiliary driving process;
2. the utility model discloses a transmission structure surmounts the shaft coupling through the main drive when the main drive device drive, when giving the output shaft with the operation moment of torsion of main drive device in step, surmounts the clutch through the auxiliary drive and keeps auxiliary drive input shaft static to make auxiliary drive device be in idle state, thereby avoid main auxiliary drive to export simultaneously, practiced thrift the energy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.
Fig. 1 is a schematic plan view of a transmission structure for automatically switching between main and auxiliary driving provided in an embodiment of the present invention;
in the figure, 1-a main drive overrunning coupler, 2-an output shaft, 3-an auxiliary drive overrunning clutch, 4-a variable speed transmission pair, 41-a first belt wheel, 42-a belt, 43-a second belt wheel, 5-an auxiliary drive input shaft, 6-a coupler and an F-auxiliary drive device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, in an embodiment of the present invention, a transmission structure for automatically switching between main and auxiliary driving is provided, which is used between a main driving device (not shown, and should be installed at the lower left side of fig. 1) and an auxiliary driving device F (located at the lower right side of fig. 1), and includes a main driving overrunning coupler 1, an output shaft 2, an auxiliary driving overrunning clutch 3, a speed change transmission pair 4, an auxiliary driving input shaft 5 and a coupler 6; wherein the content of the first and second substances,
the front end of the output shaft 2 is connected with a main driving device through a main driving overrunning coupler 1, and the shaft diameter of the tail end of the output shaft is provided with an auxiliary driving overrunning clutch 3 and is connected with the tail end of an auxiliary driving input shaft 2 through a variable speed transmission pair 4 so as to realize the transmission between the output shaft and the auxiliary driving input shaft 2;
the front end of the auxiliary driving input shaft 2 is connected with an auxiliary driving device F through a coupler 6;
when the auxiliary driving device F drives, the main driving overrunning coupler 1 keeps static with the main driving device, and only the auxiliary driving device F drives the output shaft 2 through the variable-speed transmission pair 4, so that the operation torque of the auxiliary driving device F is transmitted to the output shaft 2; and the main drive overrunning coupler 1 keeps synchronous rotation with the main drive device when the main drive device drives, and synchronizes the operation torque of the main drive device to the output shaft 2.
It should be noted that the front end and the rear end are referred to a drive device (e.g., a main drive device or an auxiliary drive device F), and one end facing the drive device is referred to as the front end and the other end away from the drive device is referred to as the rear end.
It should be noted that the main drive overrunning coupler 1 adopts a common structure, and is kept static or synchronously rotated with the main drive device through two states. For example, the device comprises a wedging state and an overrunning state, wherein the overrunning state is realized to be kept static with the main driving device, and the wedging state is realized to be kept synchronous with the main driving device for rotation.
In one example, the main drive overrunning coupler 1 is a wedge overrunning coupler, and comprises an outer ring raceway, an inner ring raceway, a wedge, a spring, a roller, an end cover, a retainer ring and the like, wherein the wedge comprises two non-concentric circular arcs to form a working surface, and the working surface is in contact with the circular arcs of the inner ring raceway and the outer ring raceway. When the inner race rotates clockwise relative to the outer race, frictional and spring forces tend to cause the sprags to rotate about their centers in a counterclockwise direction, since the sprag rollers exceed the radial distance between the raceways, the sprags wedge between the inner and outer races and lock the inner and outer races together for rotation to transmit torque (wedging condition); if the inner ring rotates anticlockwise relative to the outer ring, friction force between the wedge block and the inner ring and the outer ring enables the wedge block to rotate around the center of the wedge block clockwise to counteract stretching force of the spring, at the moment, the size of the wedge block is smaller than the radial distance between runways, the wedge block cannot be wedged tightly and is in a loose state, and the inner ring and the outer ring can respectively rotate freely and cannot transmit torque (an overrunning state). The spring force maintains the sprag rollers in contact with the two raceways during the overrunning condition. The normal working process of the wedge type one-way clutch is as follows: overrun-automatic dynamic wedging-static engagement-automatic disengagement (de-wedging) -overrun. Therefore, the inner ring is a driving part, the outer ring is a driven part, the power transmission and power cut-off functions of the auxiliary transmission device can be realized without manual operation, and unnecessary time consumption, labor consumption and risks of manual operation are avoided.
Similarly, the auxiliary driving overrunning clutch 3 is designed by a similar structure of the main driving overrunning coupler 1, and specific reference is made above and will not be described again by way of example.
In the embodiment of the present invention, the rotation speed of the speed change transmission pair 4 facing one side of the auxiliary drive overrunning clutch 3 is less than the rotation speed of the auxiliary drive overrunning clutch 3 away from one side thereof. At this time, the speed change transmission pair 4 adopts belt transmission, and comprises a first belt wheel 41, a second belt wheel 43 and a belt 42; the first belt pulley 41 is arranged on the tail end shaft diameter of the output shaft 2 and is matched with the auxiliary driving overrunning clutch 3; the second pulley 43 is mounted on the distal end shaft diameter of the auxiliary drive input shaft 5; a belt 42 is bridged over the first pulley 41 and the second pulley 43; the diameter of the first belt wheel 41 is larger than that of the second belt wheel 43, so that when the main driving device and the auxiliary driving device F are driven simultaneously, the rotating speed transmitted to the output shaft 2 by the main driving device is higher than that transmitted to the output shaft 2 by the auxiliary driving device F, and the speed reduction effect is achieved in the transmission process from the auxiliary driving device F to the output shaft 2. Meanwhile, the auxiliary driving overrunning clutch 3 and the auxiliary driving input shaft 5 are kept static (namely in an overrunning state) when the main driving device drives, so that the auxiliary driving device F is in an idle state, the simultaneous output of the main driving device and the auxiliary driving device is avoided, and the energy is saved.
It should be noted that when the auxiliary driving device F is in the idle state, the auxiliary driving device F may be stopped manually or triggered by adding a speed measuring device.
In one example, main drive is main lubricated oil pump, and auxiliary drive F is supplementary electronic lubricated oil pump, makes the utility model discloses in the embodiment transmission structure of main and supplementary drive automatic switch-over can be applicable to in the lubricated scene of main lubricated oil pump and supplementary electronic lubricated oil pump's slide bearing.
The embodiment of the utility model provides an in the theory of operation of main auxiliary drive automatic switch-over's transmission structure does, at first, sets up auxiliary drive freewheel clutch 3, lets auxiliary drive freewheel clutch 3 be in the wedging state, starts auxiliary drive device F back, is rotated through the vice 4 drive output shafts 2 of variable speed transmission by auxiliary drive device F.
Secondly, set up main drive and surmount shaft coupling 1, let main drive surmount shaft coupling 1 be in the state of surmounting, when the outer lane was rotatory, the inner circle with main drive arrangement cooperation kept static to make main drive keep static.
And then, starting the main driving device, and after the main driving device is started, automatically enabling the main driving overrunning coupler 1 to be in a wedging state, namely enabling the inner ring and the outer ring to synchronously rotate along with the main driving device, and automatically enabling the auxiliary driving overrunning clutch 3 to be in an overrunning state, namely enabling the inner ring matched with the auxiliary driving input shaft 5 to be kept static when the outer ring rotates.
At the moment, due to the speed reduction effect of the variable-speed transmission pair 4, the rotating speed transmitted to the output shaft 2 by the main drive is higher than the rotating speed transmitted to the output shaft 2 by the auxiliary drive device F, and the effect that the auxiliary drive overrunning clutch 3 is in an overrunning state is superposed, so that the auxiliary drive device F is in an idle state, the simultaneous output of the main drive and the auxiliary drive is avoided, and the energy is saved.
Finally, the auxiliary driving device 7 is stopped manually or the additional speed measuring device triggers the auxiliary driving device F to stop running
Implement the embodiment of the utility model provides a, following beneficial effect has:
1. compared with the prior art, the transmission structure of the utility model keeps the output shaft static when the auxiliary driving device drives through the main driving overrunning coupler, so that the main driving device keeps static, thereby solving the following rotation problem of the main driving device in the auxiliary driving process;
2. the utility model discloses a transmission structure surmounts the shaft coupling through the main drive when the main drive device drive, when giving the output shaft with the operation moment of torsion of main drive device in step, surmounts the clutch through the auxiliary drive and keeps auxiliary drive input shaft static to make auxiliary drive device be in idle state, thereby avoid main auxiliary drive to export simultaneously, practiced thrift the energy.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (4)
1. A transmission structure with automatic switching of main drive and auxiliary drive is used between a main drive device and an auxiliary drive device, and is characterized by comprising a main drive overrunning coupler, an output shaft, an auxiliary drive overrunning clutch, a variable-speed transmission pair, an auxiliary drive input shaft and a coupler; wherein the content of the first and second substances,
the front end of the output shaft is connected with the main driving device through the main driving overrunning coupler, and the tail end shaft diameter of the output shaft is provided with the auxiliary driving overrunning coupler and is connected with the tail end of the auxiliary driving input shaft through the variable speed transmission pair so as to realize the transmission between the output shaft and the auxiliary driving input shaft;
the front end of the auxiliary driving input shaft is connected with the auxiliary driving device through the coupler;
the main driving overrunning coupler keeps static with the main driving device when the auxiliary driving device drives; and the main driving overrunning coupler keeps synchronous rotation with the main driving device when the main driving device drives.
2. The primary-secondary drive automatic shifting transmission structure of claim 1, wherein the speed of the transmission pair on the side toward the secondary drive overrunning clutch is lower than the speed of the transmission pair on the side away from the secondary drive overrunning clutch.
3. The main-auxiliary drive automatic switching transmission structure as claimed in claim 2, wherein the auxiliary drive overrunning clutch remains stationary with the auxiliary drive input shaft when the main drive is driven, so that the auxiliary drive is in an unloaded state.
4. The transmission structure for automatic switching of main and auxiliary drives as claimed in claim 3, wherein the auxiliary drive is stopped manually or triggered by adding a speed measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223073310.5U CN218670308U (en) | 2022-11-18 | 2022-11-18 | Transmission structure with main and auxiliary driving automatic switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223073310.5U CN218670308U (en) | 2022-11-18 | 2022-11-18 | Transmission structure with main and auxiliary driving automatic switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218670308U true CN218670308U (en) | 2023-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223073310.5U Active CN218670308U (en) | 2022-11-18 | 2022-11-18 | Transmission structure with main and auxiliary driving automatic switching |
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| Country | Link |
|---|---|
| CN (1) | CN218670308U (en) |
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2022
- 2022-11-18 CN CN202223073310.5U patent/CN218670308U/en active Active
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