A single-input, double-output, three-speed gearbox

Abstract

The present application discloses a single-input dual-output three-speed gearbox, comprising a housing, a first input shaft is arranged in the housing, a first intermediate shaft, a first output shaft, a second intermediate shaft and a second output shaft are symmetrically arranged along both sides of the first input shaft, the first input shaft is gear-connected to the first input shaft through the first intermediate shaft, the second output shaft is gear-connected to the first input shaft through the second intermediate shaft, a first shifting mechanism is arranged on the first intermediate shaft, through which the first intermediate shaft is driven to the first output shaft through the fifth gear; a second shifting mechanism is arranged on the first output shaft, through which the first intermediate shaft is driven to the first output shaft through the third gear and the eighth gear, or the first intermediate shaft is driven to the first output shaft through the fourth gear and the seventh gear. The single-input dual-output three-speed gearbox of the present application has a speed ratio error within 5% by reasonable parts arrangement.

Description

Technical Field

[0001] The invention mainly relates to the technical field of gear boxes, and in particular to a single-input double-output three-speed gear box. Background Art

[0002] In the prior art, a gearbox with variable speed regulation is a gearbox with a variable speed ratio, generally with two speed ratios; however, in some cases, two output shafts are required to output three speed ratios, so a reasonable arrangement of internal parts becomes the key. Summary of the invention

[0003] The purpose of the present invention is to provide a single-input double-output three-speed gearbox to overcome the deficiencies in the prior art.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a single-input double-output three-speed gearbox, comprising a housing, a first input shaft is arranged in the housing, a first intermediate shaft, a first output shaft, a second intermediate shaft and a second output shaft are symmetrically arranged along both sides of the first input shaft, the first input shaft is gear-connected with the first input shaft through the first intermediate shaft, the second output shaft is gear-connected with the first input shaft through the second intermediate shaft, a first gear is arranged on the first input shaft, a second gear, a third gear, a fourth gear and a fifth gear are arranged on the first intermediate shaft, the first gear is meshed with the second gear, a sixth gear, a seventh gear and an eighth gear are arranged on the first output shaft, the third gear is meshed with the eighth gear, the fourth gear is meshed with the seventh gear, the fifth gear is meshed with the sixth gear, the first intermediate shaft and the second intermediate shaft are mirror-arranged on both sides of the first input shaft, and the first output shaft and the second output shaft are arranged on both sides of the first input shaft; a first shifting mechanism is arranged on the first intermediate shaft, and the first shifting mechanism enables the first intermediate shaft to be transmitted to the first output shaft through the fifth gear;

[0005] The first output shaft is provided with a second shifting mechanism, through which the first intermediate shaft is transmitted to the first output shaft through the third gear and the eighth gear, or the first intermediate shaft is transmitted to the first output shaft through the fourth gear and the seventh gear.

[0006] Preferably, the first shifting mechanism includes an R shifter, tooth A and a first inner ring gear, the first inner ring gear is installed on the first intermediate shaft through the first outer ring gear, and when the R shifter is driven to make the first inner ring gear slide to tooth A, the first intermediate shaft is transmitted to the first output shaft through the fifth gear and the sixth gear.

[0007] Preferably, the second shifting mechanism includes a T shifter, gear B, gear C and a second inner ring gear, the second inner ring gear is installed on the first output shaft through a second outer ring gear, and when the T shifter is driven to make the second inner ring gear slide to gear B, the first intermediate shaft is transmitted to the first output shaft through the third gear and the eighth gear; when the T shifter is driven to make the second inner ring gear slide to gear C, the first intermediate shaft is transmitted to the first output shaft through the fourth gear and the seventh gear.

[0008] Preferably, the number of teeth on the first gear is 57, the number of teeth on the second gear is 58, the number of teeth on the third gear is 51, the number of teeth on the fourth gear is 60, the number of teeth on the fifth gear is 66, the number of teeth on the sixth gear is 65, the number of teeth on the seventh gear is 80, and the number of teeth on the eighth gear is 71.

[0009] Compared with the prior art, the single-input, double-output, three-speed gearbox of the present application has a speed ratio error within 0.5% through reasonable parts arrangement. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 The present invention is a schematic structural diagram of a single-input, double-output, three-speed transmission gearbox according to a specific embodiment of the present invention.

[0012] Among them: 1: housing 2: input shaft 3: first bearing 4: gear Z57 5: second bearing 6: first blind cover 7: third bearing 8: first intermediate shaft 9: gear Z58 10: gear Z51 11: gear Z60 12: first inner gear ring 13: first outer gear ring 14: fourth bearing 15: fifth bearing 16: first blind cover 17: gear Z66 18: second output shaft 19: first transparent cover 20: sixth bearing 21: gear Z65 22: seventh bearing 23: gear Z71 24: second inner gear ring 25: second outer gear ring 26: eighth bearing 27: gear Z80 28: ninth bearing 29: second blind cover 30: second transparent cover. DETAILED DESCRIPTION

[0013] The following will describe the technical solutions in the embodiments of the present invention in detail in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] Combination Figure 1 As shown, a single-input dual-output three-speed gearbox of the present application includes:

[0015] First input shaft assembly:

[0016] 1. The first bearing 3 is installed on the first input shaft 2, the first bearing 3 is installed in the hole of the box body 1, and the second transparent cover 30 is installed on the box body 1 for sealing;

[0017] 2. The second bearing 5 is installed on the first input shaft 2, and the second bearing 5 is installed in the hole of the housing 1;

[0018] 3. The first gear 4 is mounted on the first input shaft 2.

[0019] First intermediate shaft assembly:

[0020] 1. The third bearing 7 is installed in the hole of the housing 1, the third bearing 7 is installed on the first intermediate shaft 8, and the first cover 6 is installed on the housing 1 for sealing;

[0021] 2. The fifth bearing 15 is installed in the hole of the housing 1, the fifth bearing 15 is installed on the first intermediate shaft 8, and the second cover 16 is installed on the housing 1 for sealing;

[0022] 3. The fourth bearing 14 is installed on the first intermediate shaft 8, and the fourth bearing 14 is installed in the hole of the fifth gear 17;

[0023] 4. The first outer gear ring 13 is mounted on the first intermediate shaft 8, and the first inner gear ring 12 is mounted on the first outer gear ring 13 and can slide through the R shifter. When the first inner gear ring 12 slides onto the tooth A, the motor power is transmitted to the sixth gear 25 through the fifth gear 17;

[0024] 5. When the first inner gear ring 12 does not slip, it is in neutral, and the fifth gear 17 does not transmit power to the sixth gear 25;

[0025] 6. The fourth gear 11 is mounted on the first intermediate shaft 8;

[0026] 7. The third gear Z51 is mounted on the first intermediate shaft 8;

[0027] 8. The second gear Z58 is mounted on the first intermediate shaft 8;

[0028] First output shaft assembly:

[0029] 1. The sixth bearing 20 is installed in the hole of the box body 1, the sixth bearing 20 is installed on the first output shaft 18, and the first transparent cover 19 is installed on the box body 1 for sealing;

[0030] 2. The ninth bearing 28 is installed in the hole of the housing 1, the ninth bearing 28 is installed on the first output shaft 18, and the third cover 29 is installed on the housing 1 for sealing;

[0031] 3. The sixth gear 25 is mounted on the first output shaft 18;

[0032] 4. The seventh bearing 22 is installed on the first output shaft 18, and the seventh bearing 22 is installed in the hole of the eighth gear 23;

[0033] 5. The eighth bearing 26 is installed on the first output shaft 18, and the eighth bearing 26 is installed in the hole of the seventh gear 27;

[0034] 6. The second outer gear ring 25 is mounted on the first output shaft 18, and the second inner gear ring 24 is mounted on the second outer gear ring 25, and can slide through the S shifter. When the second inner gear ring 24 slides onto the tooth B, the eighth gear 23 is transmitted to the first output shaft 18, and when the second inner gear ring 24 slides onto the tooth C, the seventh gear 27 is transmitted to the first output shaft 18;

[0035] 7. When the second inner gear ring 24 does not slip, it is in neutral, and neither the eighth gear 23 nor the seventh gear 27 is transmitted to the first output shaft 18 .

[0036] The second intermediate shafting assembly is identical to the first intermediate shafting assembly; the second output shafting assembly is identical to the first output shafting assembly.

[0037] As a preferred embodiment, in this application, the first gear 4 has 57 teeth, the second gear 9 has 58 teeth, the third gear 10 has 51 teeth, the fourth gear 11 has 60 teeth, the fifth gear 17 has 66 teeth, the sixth gear 21 has 65 teeth, the seventh gear 27 has 80 teeth, and the eighth gear 23 has 71 teeth.

[0038] This patent is implemented as follows:

[0039] 1. When the first inner gear ring 12 slides onto the tooth A and the second inner gear ring 24 does not slide (maintains neutral), the output speed ratio of the first output shaft 18 is 58 / 57*65 / 66=1.0021;

[0040] 2. When the second inner gear ring 24 slides onto the tooth B and the first inner gear ring 12 does not slide (maintains neutral), the output speed ratio of the first output shaft 18 is 58 / 57*71 / 60=1.2041;

[0041] 3. When the second inner gear ring 24 slides onto the tooth C and the first inner gear ring 12 does not slide (maintains neutral), the output speed ratio of the first output shaft 18 is 58 / 57*80 / 51=1.5961;

[0042] 4. The internal gear ring on the second intermediate shaft system is designed to use the same shift position as the first intermediate shaft system;

[0043] 5. The internal gear ring on the second output shaft system is designed to use the same shift position as the first output shaft system;

[0044] 6. The above speed ratio is for one use case and can be flexibly adjusted by changing the number of teeth according to actual conditions to achieve a wide range of applications.

[0045] Compared with the prior art, this application has at least the following beneficial effects:

[0046] 1. An intermediate shaft system is added, and both the intermediate shaft system and the output shaft system have shifting mechanisms, so that the speed ratio error is strictly controlled within 5% after the number of teeth is adjusted as required.

[0047] 2. The maximum output shaft speed can reach over 5000r / min (rolling bearing), and the maximum input shaft power is 1000KW.

[0048] 3. The gear ratio of each pair of gears can be adjusted according to actual usage, which increases the application range of the gearbox speed ratio adjustment and enables a wide range of applications.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not clearly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the sentence "comprise a..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements.

[0050] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A single-input, double-output, three-speed gearbox, comprising a housing, characterized in that: The housing is provided with a first input shaft, and a first intermediate shaft, a first output shaft, a second intermediate shaft and a second output shaft are symmetrically arranged on both sides of the first input shaft. The first input shaft is gear-connected with the first input shaft through the first intermediate shaft, and the second output shaft is gear-connected with the first input shaft through the second intermediate shaft. The first input shaft is provided with a first gear, and the first intermediate shaft is provided with a second gear, a third gear, a fourth gear and a fifth gear. The first gear is meshed with the second gear. The first output shaft is provided with a sixth gear, a seventh gear and an eighth gear. The third gear is meshed with the eighth gear, the fourth gear is meshed with the seventh gear, and the fifth gear is meshed with the sixth gear. The first intermediate shaft and the second intermediate shaft are mirror-arranged on both sides of the first input shaft, and the first output shaft and the second output shaft are arranged on both sides of the first input shaft. The first intermediate shaft is provided with a first shifting mechanism, and the first intermediate shaft is transmitted to the first output shaft through the fifth gear through the first shifting mechanism. The first output shaft is provided with a second shifting mechanism, through which the first intermediate shaft is transmitted to the first output shaft through the third gear and the eighth gear, or the first intermediate shaft is transmitted to the first output shaft through the fourth gear and the seventh gear. The first shifting mechanism includes an R shifter, a tooth A, and a first inner gear ring. The first inner gear ring is installed on the first intermediate shaft through a first outer gear ring. When the R shifter is driven to make the first inner gear ring slide to the tooth A, the first intermediate shaft is transmitted to the first output shaft through the fifth gear and the sixth gear. The second shifting mechanism includes a T shifter, a tooth B, a tooth C, and a second inner gear ring. The second inner gear ring is installed on the first output shaft through the second outer gear ring. When the T shifter is driven to make the second inner gear ring slide to the tooth B, the first intermediate shaft is transmitted to the first output shaft through the third gear and the eighth gear; when the T shifter is driven to make the second inner gear ring slide to the tooth C, the first intermediate shaft transmits the first output shaft through the fourth gear and the seventh gear.

2. The single-input, double-output, three-speed gearbox according to claim 1, characterized in that: The number of teeth of the first gear is 57, the number of teeth of the second gear is 58, the number of teeth of the third gear is 51, the number of teeth of the fourth gear is 60, the number of teeth of the fifth gear is 66, the number of teeth of the sixth gear is 65, the number of teeth of the seventh gear is 80, and the number of teeth of the eighth gear is 71.

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