Parallel transmission case

Abstract

The utility model relates to the technical field of transmission cases, in particular to a parallel transmission case which comprises a gear case and a driving motor, a first bevel gear is sleeved on the periphery of a first output shaft, a second bevel gear is sleeved on the periphery of a second output shaft, and the first bevel gear is meshed with the second bevel gear. The front end and the rear end of the first cavity are provided with a first opening and a second opening respectively, the front end of the first output shaft extends out of the first opening, the output end of the driving motor is connected with the first output shaft, the front end of the second cavity is provided with a third opening, and the front end of the second output shaft extends out of the third opening. The first output shaft is directly connected with the driving motor, the two output shafts are meshed with each other through the bevel gear, efficient torque transmission and parallel output can be achieved, vibration and noise are reduced, the overall structure is more compact, the transmission case has a double-output function due to the arrangement of the first output shaft and the second output shaft, and the transmission case is more compact in structure. And the application flexibility of the equipment is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to transmission case technical field, in particular to a parallel transmission case. BACKGROUND

[0002] In the traditional power transmission system, a single motor drives a corresponding output shaft to work. In some application occasions, such as industrial equipment, engineering machinery and automatic production line, the power of the motor needs to be efficiently distributed to two working points, which puts forward higher requirements for the transmission device.

[0003] The existing parallel transmission case can realize power distribution of double output shafts to a certain extent, but there is still room for improvement in structure compactness, transmission stability and efficiency. Especially in the case of high-speed operation, due to the friction loss and vibration between gears, energy loss will increase, which will affect the performance of the whole system. SUMMARY

[0004] The utility model aims at least solve the technical problem existing in prior art. For this, the utility model provides a parallel transmission case, improves transmission efficiency, reduces vibration and noise, and makes the overall structure more compact, easy to install and maintain.

[0005] According to some embodiments of the utility model, a parallel transmission case comprises a gear box and a driving motor, a first cavity and a second cavity are arranged in the gear box, the first cavity and the second cavity are communicated, a first output shaft is rotatably arranged in the first cavity, a second output shaft is rotatably arranged in the first cavity, a first helical gear is sleeved on the outer periphery of the first output shaft, a second helical gear is sleeved on the outer periphery of the second output shaft, the first helical gear is engaged with the second helical gear, a first opening and a second opening are respectively arranged at the front and rear ends of the first cavity, the front end of the first output shaft is arranged to extend from the first opening, a connecting hole is arranged at the rear end of the first output shaft, the connecting hole is arranged at the second opening, the output end of the driving motor is connected with the connecting hole, a third opening is arranged at the front end of the second cavity, and the front end of the second output shaft extends from the third opening.

[0006] According to some embodiments of the utility model, a parallel transmission case has at least the following beneficial effects:

[0007] The utility model discloses a first cavity and second cavity are set up in gear box, first cavity and second cavity intercommunication, first cavity can rotatablely set up first output shaft, first cavity can rotatablely set up second output shaft, the outer periphery of first output shaft is equipped with first helical gear, the outer periphery of second output shaft is equipped with second helical gear, first helical gear and second helical gear engage, through with first output shaft and drive motor direct connection, and make two output shafts through helical gear interlock, can realize efficient torque transmission and parallel output, reduce vibration and noise, the whole structure is more compact, the setting of first output shaft and second output shaft makes transmission box have double output function, strengthens the application flexibility of equipment.

[0008] According to some embodiments of the utility model discloses a parallel transmission box, the inner wall of first opening is equipped with the first lug, the one end of first output shaft is equipped with the second lug near first opening, the inner wall of first opening is equipped with first bearing, first bearing is located between first lug and second lug, first output shaft is arranged in first bearing.

[0009] According to some embodiments of the utility model discloses a parallel transmission box, the outer side of gear box is equipped with connecting piece, the outer periphery of connecting piece is equipped with a plurality of fixed holes, the middle part of connecting piece is equipped with through -hole, through -hole is in intercommunication with second opening.

[0010] According to some embodiments of the utility model discloses a parallel transmission box, the one side of connecting piece is equipped with first stopper near first cavity, first stopper is in second opening, the inner wall of second opening is equipped with second bearing, first output shaft is arranged in second bearing, first output shaft is equipped with first baffle ring, first baffle ring is arranged between second bearing and first helical gear, first lug, first bearing, second lug, first helical gear, first baffle ring, second bearing and first stopper are in turn abutted from front to back.

[0011] According to some embodiments of the utility model discloses a parallel transmission box, the inner wall of third opening is equipped with third lug, the one end of second output shaft is equipped with fourth lug near second opening, the inner wall of third opening is equipped with third bearing, third bearing is located between third lug and fourth lug, second output shaft is arranged in third bearing.

[0012] According to some embodiments of the utility model discloses a parallel transmission box, the rear end of first cavity is equipped with accommodating groove, the inner wall of accommodating groove is equipped with fourth bearing, the rear end of second output shaft is arranged in fourth bearing.

[0013] According to some embodiments of the utility model, a parallel transmission box, the rear end inner wall of accommodating groove protrude with second stopper, the second output shaft is equipped with second fender ring, second fender ring set between fourth bearing and second helical gear, third protruding piece, third bearing, fourth protruding piece, second helical gear, second fender ring, fourth bearing and second stopper are in order from front to back abut.

[0014] According to some embodiments of the utility model, a parallel transmission box, the first opening and the second opening are provided with first skeleton oil seal.

[0015] According to some embodiments of the utility model, a parallel transmission box, the third opening is provided with second skeleton oil seal.

[0016] According to some embodiments of the utility model, a parallel transmission box, the gear box includes box body and box cover, the box cover with the box body detachable connection, the box cover with the box body combine and form the first cavity and the second cavity.

[0017] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the utility model will become apparent and more readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0019] Figure 1 It is structural schematic drawing of the utility model embodiment.

[0020] Figure 2 It is structural schematic drawing of the utility model embodiment after hiding drive motor.

[0021] Figure 3 It is top view of the utility model embodiment.

[0022] Figure 4 It is Figure 3 It is sectional view along A-A line.

[0023] Figure 5 It is Figure 3 It is sectional view along B-B line.

[0024] Reference numerals: 1. Gearbox; 2. Drive motor; 3. First cavity; 4. Second cavity; 5. First output shaft; 6. Second output shaft; 7. First helical gear; 8. Second helical gear; 9. First opening; 10. Second opening; 11. Connecting hole; 12. Third opening; 13. First protrusion; 14. Second protrusion; 15. First bearing; 16. Connector; 17. Fixing hole; 18. Through hole; 19. First stop block; 20. Second bearing; 21. First retaining ring; 22. Third protrusion; 23. Fourth protrusion; 24. Third bearing; 25. Receiving groove; 26. Fourth bearing; 27. Second stop block; 28. Second retaining ring; 29. ​​First skeleton oil seal; 30. Second skeleton oil seal; 31. Housing; 32. Housing cover. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] like Figures 1-5 As shown, this utility model embodiment provides a parallel transmission box.

[0030] A kind of parallel transmission box, including gear box 1 and drive motor 2, first cavity 3 and second cavity 4 are provided in the gear box 1, the first cavity 3 with the second cavity 4 communicate, first output shaft 5 is rotatably arranged in the first cavity 3, second output shaft 6 is rotatably arranged in the first cavity 3, the outer periphery of the first output shaft 5 is equipped with first helical gear 7, the outer periphery of the second output shaft 6 is equipped with second helical gear 8, the first helical gear 7 is engaged with the second helical gear 8, the front, rear ends of the first cavity 3 are respectively provided with first opening 9 and second opening 10, the front end of the first output shaft 5 is from the first opening 9, the rear end of the first output shaft 5 is provided with connecting hole 11, the connecting hole 11 is located at the second opening 10, the output end of the drive motor 2 is connected with the connecting hole 11, the front end of the second cavity 4 is provided with third opening 12, the front end of the second output shaft 6 is from the third opening 12.

[0031] The utility model discloses a first cavity 3 and second cavity 4 are set up in gear box 1, first cavity 3 with second cavity 4 communicate, first output shaft 5 is rotatably arranged in first cavity 3, second output shaft 6 is rotatably arranged in first cavity 3, the outer periphery of the first output shaft 5 is equipped with first helical gear 7, the outer periphery of the second output shaft 6 is equipped with second helical gear 8, the first helical gear 7 is engaged with the second helical gear 8, by the direct connection of first output shaft 5 with drive motor 2, and make two output shafts engage each other through helical gear, can realize efficient torque transmission and parallel output, reduce vibration and noise, the whole structure is more compact, the setting of first output shaft 5 and second output shaft 6 makes the transmission box have double output function, strengthens the application flexibility of equipment.

[0032] The utility model discloses a parallel transmission box, the inner wall of first opening 9 is ringed with first lug 13, one end of first output shaft 5 is ringed with second lug 14 close to first opening 9, first bearing 15 is arranged on the inner wall of first opening 9, first bearing 15 is located between first lug 13 and second lug 14, first output shaft 5 is threaded in first bearing 15. Specifically, by setting first lug 13 and second lug 14, first bearing 15 can be limited, ensure the stability and rotation accuracy of first output shaft 5, reduce the influence of radial load to shaft, thereby improve the service life and reliability of first output shaft 5.

[0033] The parallel transmission box described in this example, the outer side of the gear box 1 is provided with a connecting piece 16, the outer periphery of the connecting piece 16 is provided with a plurality of fixing holes 17, the middle part of the connecting piece 16 is provided with a through hole 18, and the through hole 18 is communicated with the second opening 10. Specifically, the setting of the connecting piece 16 facilitates the installation of the driving motor 2, the multiple fixing holes 17 provide a multi-point fixing mode, and the connection stability of the driving motor 2 is enhanced; and the through hole 18 on the connecting piece 16 is communicated with the second opening 10, and the driving motor 2 extends into the second opening 10 from the through hole 18 and is connected with the first output shaft 5.

[0034] The parallel transmission box described in this example, the connecting piece 16 is provided with a first stop block 19 on one side close to the first cavity 3, the first stop block 19 extends into the second opening 10, a second bearing 20 is arranged on the inner wall of the second opening 10, the first output shaft 5 is arranged in the second bearing 20, a first retainer ring 21 is arranged on the first output shaft 5, the first retainer ring 21 is arranged between the second bearing 20 and the first bevel gear 7, and the first protrusion 13, the first bearing 15, the second protrusion 14, the first bevel gear 7, the first retainer ring 21, the second bearing 20 and the first stop block 19 are sequentially abutted from front to back. Specifically, the use of components such as the first stop block 19 and the first retainer ring 21 further enhances the stability of the shafting, prevents axial movement, ensures stable connection between components, is not prone to axial movement, and improves the stability of the overall structure.

[0035] The parallel transmission box described in this example, a third protrusion 22 is arranged on the inner wall of the third opening 12, a fourth protrusion 23 is arranged on one end of the second output shaft 6 close to the second opening 10, a third bearing 24 is arranged on the inner wall of the third opening 12, the third bearing 24 is located between the third protrusion 22 and the fourth protrusion 23, and the second output shaft 6 is arranged in the third bearing 24. Specifically, the combination of the third protrusion 22 and the fourth protrusion 23 effectively fixes the third bearing 24, and ensures the rigidity and stable operation of the second output shaft 6.

[0036] The parallel transmission box described in this example, the rear end of the first cavity 3 is provided with a containing groove 25, the fourth bearing 26 is arranged on the inner wall of the containing groove 25, and the rear end of the second output shaft 6 is arranged in the fourth bearing 26. Specifically, the containing groove 25 and the fourth bearing 26 at the rear end provide additional support for the second output shaft 6, further enhancing the carrying capacity and running stability of the second output shaft 6.

[0037] The parallel transmission box described in the example, the rear end inner wall of the accommodating groove 25 is provided with a second stop block 27, the second output shaft 6 is provided with a second retaining ring 28, the second retaining ring 28 is arranged between the fourth bearing 26 and the second helical gear 8, the third protrusion 22, the third bearing 24, the fourth protrusion 23, the second helical gear 8, the second retaining ring 28, the fourth bearing 26 and the second stop block 27 are sequentially abutted from front to back. Specifically, the above structure avoids unnecessary vibration and displacement, which helps to improve the overall performance of the mechanical system.

[0038] The parallel transmission box described in the example, the first opening 9 and the second opening 10 are provided with a first skeleton oil seal 29. Specifically, the setting of the first skeleton oil seal 29 effectively prevents the leakage of lubricating oil, maintains the cleanliness of the inside of the gear box 1, and also prevents external pollutants from entering, prolonging the service life of the transmission box.

[0039] The parallel transmission box described in the example, the third opening 12 is provided with a second skeleton oil seal 30. Specifically, the second skeleton oil seal 30 also plays a sealing role, protects the second output shaft 6 from pollution, and ensures the normal working state of the second output shaft 6.

[0040] The parallel transmission box described in the example, the gear box 1 includes a box body 31 and a box cover 32, the box cover 32 is detachably connected with the box body 31, and the box cover 32 and the box body 31 form the first cavity 3 and the second cavity 4. Specifically, the detachable design of the box body 31 and the box cover 32 facilitates the maintenance and repair of the transmission box. When it is necessary to replace or check the internal parts, it can be quickly opened without affecting the structural integrity of the entire equipment.

[0041] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A parallel transmission case, characterized by: The application relates to a gear box and a driving motor, wherein a first cavity and a second cavity are arranged in the gear box, the first cavity communicates with the second cavity, a first output shaft is rotatably arranged in the first cavity, a second output shaft is rotatably arranged in the first cavity, a first helical gear is arranged on the outer periphery of the first output shaft, a second helical gear is arranged on the outer periphery of the second output shaft, the first helical gear meshes with the second helical gear, a first opening and a second opening are respectively arranged at the front end and the rear end of the first cavity, the front end of the first output shaft extends out of the first opening, a connecting hole is arranged at the rear end of the first output shaft, the connecting hole is located at the second opening, the output end of the driving motor is connected with the connecting hole, and a third opening is arranged at the front end of the second cavity, the front end of the second output shaft extends out of the third opening.

2. A parallel transmission case according to claim 1, characterized in that: A first protruding block is annularly arranged on the inner wall of the first opening, a second protruding block is annularly arranged on the end of the first output shaft close to the first opening, a first bearing is arranged on the inner wall of the first opening, and the first bearing is located between the first protruding block and the second protruding block, and the first output shaft penetrates through the first bearing.

3. A parallel drive case according to claim 2, wherein: A connecting piece is arranged on the outer side of the gear box, a plurality of fixing holes are arranged on the outer periphery of the connecting piece, a through hole is arranged in the middle of the connecting piece, and the through hole communicates with the second opening.

4. A gearbox according to claim 3, wherein: A first stop block is annularly arranged on the side of the connecting piece close to the first cavity, the first stop block extends into the second opening, a second bearing is arranged on the inner wall of the second opening, the first output shaft penetrates through the second bearing, a first stop ring is arranged on the first output shaft, the first stop ring is arranged between the second bearing and the first helical gear, and the first protruding block, the first bearing, the second protruding block, the first helical gear, the first stop ring, the second bearing and the first stop block abut in sequence from front to back.

5. A parallel transmission case according to claim 1, characterized in that: A third protruding block is annularly arranged on the inner wall of the third opening, a fourth protruding block is annularly arranged on the end of the second output shaft close to the second opening, a third bearing is arranged on the inner wall of the third opening, and the third bearing is located between the third protruding block and the fourth protruding block, and the second output shaft penetrates through the third bearing.

6. A parallel drive box according to claim 5, characterised in that: A containing groove is arranged at the rear end of the first cavity, a fourth bearing is arranged on the inner wall of the containing groove, and the rear end of the second output shaft penetrates through the fourth bearing.

7. A parallel drive box according to claim 6, characterised in that: A second stop block is protruded on the rear end inner wall of the containing groove, a second stop ring is arranged on the second output shaft, the second stop ring is arranged between the fourth bearing and the second helical gear, and the third protruding block, the third bearing, the fourth protruding block, the second helical gear, the second stop ring, the fourth bearing and the second stop block abut in sequence from front to back.

8. A parallel transmission case according to claim 1, characterized in that: First skeleton oil seals are arranged on the first opening and the second opening.

9. A parallel transmission case according to claim 1, characterized in that: Second skeleton oil seals are arranged on the third opening.

10. A parallel transmission case according to claim 1, characterized in that: The gear box comprises a box body and a box cover, the box cover is detachably connected with the box body, and the box cover and the box body jointly form the first cavity and the second cavity.

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