CN114165564A - Six-gear rear-drive transmission shafting structure - Google Patents

Six-gear rear-drive transmission shafting structure Download PDF

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Publication number
CN114165564A
CN114165564A CN202111532915.3A CN202111532915A CN114165564A CN 114165564 A CN114165564 A CN 114165564A CN 202111532915 A CN202111532915 A CN 202111532915A CN 114165564 A CN114165564 A CN 114165564A
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CN
China
Prior art keywords
shaft
gear
bearing
assembly
input shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111532915.3A
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Chinese (zh)
Inventor
唐云
庄周
周武君
李先平
胡佳会
胡敏
陈瑶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Tsingshan Industrial Co Ltd
Original Assignee
Chongqing Tsingshan Industrial Co Ltd
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Filing date
Publication date
Application filed by Chongqing Tsingshan Industrial Co Ltd filed Critical Chongqing Tsingshan Industrial Co Ltd
Priority to CN202111532915.3A priority Critical patent/CN114165564A/en
Publication of CN114165564A publication Critical patent/CN114165564A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/091—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft
    • F16H3/0915—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft with coaxial input and output shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0018—Shaft assemblies for gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0018—Shaft assemblies for gearings
    • F16H57/0025—Shaft assemblies for gearings with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H2003/0822—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the arrangement of at least one reverse gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0052—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising six forward speeds

Abstract

The invention discloses a six-gear rear-drive transmission shafting structure.A middle shaft is positioned at one side of an input shaft, a middle shaft fourth-gear is meshed with a middle shaft fourth-gear assembly, a middle shaft third-gear is meshed with a middle shaft third-gear assembly, a middle shaft second-gear assembly is meshed with a middle shaft second-gear, a middle shaft first-gear assembly is meshed with a middle shaft first-gear of the input shaft, and a middle shaft sixth-gear assembly is meshed with a middle shaft sixth-gear assembly; the output shaft is meshed with the intermediate shaft, a containing cavity is formed in one end of the output shaft, the input shaft and the output shaft are arranged coaxially, the end portion of the input shaft is rotatably matched in the containing cavity of the output shaft, and the five-gear teeth are fixed to one end of the output shaft. The invention has the advantages of compact structure and low cost.

Description

Six-gear rear-drive transmission shafting structure
Technical Field
The invention relates to a large-torque rear-drive manual transmission, in particular to a six-gear rear-drive transmission shafting structure.
Background
With the policy of allowing pickup to enter cities, more and more consumers are using pickup as a passenger and cargo dual-purpose vehicle, with the dual requirements of torque and performance of the rear drive manual transmission.
The rear-drive large-torque manual transmission on the current market almost adopts a short input shaft scheme, an input shaft assembly transmits torque to a middle shaft assembly through a normally meshed gear, and transmits the torque and the rotating speed to an output shaft assembly through gear pairs of all gears on the middle shaft assembly. CN201265640Y discloses a six-speed automotive transmission in which a two-speed synchronizer is disposed on an intermediate axle assembly, the torque of which has been increased by a factor of about 1.5 through a constantly meshing gear pair. The third-fourth gear synchronizer and the fifth-sixth gear synchronizer are arranged on the output shaft assembly, and the torque of the third-fourth gear synchronizer and the fifth-sixth gear synchronizer is increased to the maximum torque of each gear of the third, fourth, fifth and sixth gears, so that except that the ratio of the sixth gear is less than 1, the requirements on the corresponding gear strength, synchronizer strength and bearing strength of other gears are higher, the corresponding center distance is correspondingly increased, and the defects of large gear shifting impact and poor gear shifting performance exist.
Disclosure of Invention
The invention provides a six-gear rear-drive transmission shafting structure which is compact in structure and low in cost.
The six-gear rear-drive transmission shafting structure comprises an input shaft assembly, a middle shaft assembly, an output shaft assembly and a reverse shaft assembly, wherein the input shaft assembly comprises an input shaft, and an input shaft four-gear assembly, a three-four-gear synchronizer assembly, an input shaft three-gear assembly, an input shaft two-gear tooth, an input shaft one-gear tooth, an input shaft six-gear assembly and a five-six-gear synchronizer assembly are sequentially arranged on the input shaft from left to right;
the middle shaft component comprises a middle shaft, and a middle shaft four-gear, a middle shaft three-gear, a middle shaft two-gear assembly, a two-gear synchronizer component, a middle shaft one-gear assembly and a middle shaft six-gear assembly are sequentially arranged on the middle shaft from left to right; the middle shaft is positioned at one side of the input shaft, the middle shaft fourth-gear is meshed with the input shaft fourth-gear assembly, the middle shaft third-gear is meshed with the input shaft third-gear assembly, the middle shaft second-gear assembly is meshed with the input shaft second-gear teeth, the middle shaft first-gear assembly is meshed with the input shaft first-gear teeth, and the middle shaft sixth-gear assembly is meshed with the input shaft sixth-gear assembly;
the output shaft assembly comprises an output shaft and five-gear teeth for forming a fifth forward gear when being combined with the fifth-sixth gear synchronizer assembly, the output shaft is meshed with the intermediate shaft, one end of the output shaft is provided with a containing cavity, the input shaft and the output shaft are coaxially arranged, the end part of the input shaft is rotatably matched in the containing cavity of the output shaft, and the five-gear teeth are fixed at one end of the output shaft;
the reverse bearing assembly comprises a reverse shaft, a reverse synchronizer assembly and a reverse gear assembly, wherein the reverse synchronizer assembly and the reverse gear assembly are arranged on the reverse shaft; the reverse gear shaft is positioned on the other side of the input shaft, the reverse gear shaft is meshed with the intermediate shaft, and the gear assembly is meshed with the first gear of the input shaft.
The invention has the following advantages:
compared with the scheme of the existing pickup truck or light truck large-torque rear-drive transmission on the market, the invention adopts the scheme of the long input shaft, all the forward gears except the fifth gear (direct gear) are arranged on the input shaft, the first-stage speed reduction and torque increase are not carried out, and the smaller center distance can be realized under the same torque; because the gear pair on the long input shaft is not subjected to speed reduction and torque increase, the gear shifting impulse of the synchronizer is much smaller than that of the short input shaft scheme on the market at present, and the problem of poor gear shifting performance of the product on the market is solved.
The scheme improves the bearing arrangement scheme of the existing product scheme on the market, abandons the scheme that two ball bearings or one ball and one column are arranged at the front bearing position to bear the axial force, adopts the scheme of one ball and one column at the front bearing position and one ball and one column at the middle bearing position, can increase the model of the ball bearings, reduces the damage rate of the ball bearings bearing the axial force, and avoids the failure of the ball bearings bearing the axial force to generate medium-term mileage.
The scheme adopts the scheme that the reverse gear and the reverse synchronizer are arranged on the reverse shaft, the arrangement of four, three, two, one, six and five is adopted from the engine end to the output end, and the reverse gear of the middle shaft is shared by one reverse gear, so that the length of the reverse shaft can be reduced, and the integral weight reduction is realized.
Drawings
FIG. 1 is a schematic diagram of a six-gear rear-drive transmission shafting structure according to the invention.
Reference numbers in the drawings:
an input shaft 1, a collar 2, an input shaft fourth gear assembly 4, an input shaft front bearing 3, a third and fourth gear synchronizer assembly 5, an input shaft third gear assembly 6, an input shaft middle bearing 7, a reverse shaft front bearing 8, an input shaft second gear tooth 9, a reverse gear synchronizer assembly 10, a reverse gear assembly 11, an input shaft first gear tooth 12, a reverse shaft 13, a reverse shaft rear bearing 14, an output shaft 15, an output flange 16, an output shaft rear bearing 17, an output shaft bearing spacer 18, an output shaft front bearing 19, an intermediate shaft rear bearing 20, an intermediate shaft 21, a fifth and sixth gear synchronizer assembly 22, an input shaft sixth gear assembly 23, an intermediate shaft first gear assembly 24, a second and fourth gear synchronizer assembly 25, an intermediate shaft second gear assembly 26, an intermediate shaft middle bearing 27, an intermediate shaft third gear 28, a spacer 29, an intermediate shaft fourth gear 30, an intermediate shaft front bearing 31, a lock nut 32, bearing 33, intermediate shaft six-gear assembly 34, five-gear tooth 35.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention are described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below by referring to the drawings are exemplary and intended to explain the present invention and are not to be construed as simply limiting the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the invention without making creative efforts, shall fall within the protection scope of the invention. Embodiments of the present invention are described in detail below with reference to the accompanying drawings:
in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations and positional relationships based on those illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present invention.
As shown in fig. 1, the six-gear rear-drive transmission shafting structure of the present invention includes an input shaft assembly, a middle shaft assembly, an output shaft assembly and a reverse shaft assembly, wherein the input shaft assembly includes an input shaft 1, and an input shaft four-gear assembly 4, a three-four-gear synchronizer assembly 5, an input shaft three-gear assembly 6, an input shaft two-gear tooth 9, an input shaft one-gear tooth 12, an input shaft six-gear assembly 23 and a five-six-gear synchronizer assembly 22 are sequentially arranged on the input shaft 1 from left to right.
The intermediate shaft components comprise an intermediate shaft 21, and an intermediate shaft four-gear 30, an intermediate shaft three-gear 28, an intermediate shaft two-gear assembly 26, a two-gear synchronizer component 25, an intermediate shaft first-gear assembly 24 and an intermediate shaft six-gear assembly 34 are sequentially arranged on the intermediate shaft 21 from left to right; the intermediate shaft 21 is positioned on one side of the input shaft 1, the intermediate shaft fourth-gear 30 is meshed with the input shaft fourth-gear assembly 4, the intermediate shaft third-gear 28 is meshed with the input shaft third-gear assembly 6, the intermediate shaft second-gear assembly 26 is meshed with the input shaft second-gear teeth 9, the intermediate shaft first-gear assembly 24 is meshed with the input shaft first-gear teeth 12, and the intermediate shaft sixth-gear assembly 34 is meshed with the input shaft sixth-gear assembly 23.
The output shaft assembly comprises an output shaft 15 and a fifth gear tooth 35 used for forming a fifth forward gear when being combined with the fifth-sixth gear synchronizer assembly 22, the output shaft 15 is meshed with the intermediate shaft 21, one end of the output shaft 15 is provided with a receiving cavity, the input shaft 1 and the output shaft 15 are coaxially arranged, the end part of the input shaft 1 is rotatably matched in the receiving cavity of the output shaft 15, preferably, a bearing 33 is arranged in the receiving cavity of the output shaft 15, and the input shaft 1 is matched with the bearing 33. The fifth-gear tooth 35 is fixed at one end of the output shaft 15. The fifth gear 35 is a gear ring welded to the output shaft 15, and when the sleeve of the fifth-sixth gear synchronizer assembly 22 is connected to the fifth gear 35 as a whole, the fifth gear output is formed.
The reverse bearing assembly comprises a reverse shaft 13, a reverse synchronizer assembly 10 and a reverse gear assembly 11 which are arranged on the reverse shaft 13; the reverse gear shaft 13 is positioned at the other side of the input shaft 1, the reverse gear shaft 13 is meshed with the intermediate shaft 21, and the reverse gear assembly 11 is meshed with the first gear teeth 12 of the input shaft.
According to the gear arrangement, the input shaft 1 is sequentially provided with a fourth gear, a third gear, a second gear, a first gear, a sixth gear and a fifth gear from left to right. Because the fifth gear 35 is directly welded and fixed on the output shaft 15, it is a diameter gear, the intermediate shaft first gear assembly 24 is used as a reverse gear idle wheel at the same time, and forms a reverse gear pair with the input shaft first gear 12 and the reverse gear assembly 11. The shaft teeth on the reverse gear shaft 13 are used as a normally meshed gear in the reverse gear working condition and are matched with the shaft teeth of the output shaft 15 to realize the reverse gear power output. The first gear and the second gear are arranged close to the output shaft, so that when a reverse gear shares the middle shaft to reverse, the length of the reverse gear shaft can be shortened, and the integral weight reduction is realized.
All the forward gear gears and reverse gear input shaft teeth except for the direct gear fifth gear are arranged on the input shaft assembly, the structure of the input shaft assembly is a long input shaft structure, the input torque of all gear pairs on the input shaft assembly is the engine torque, and the gears on the intermediate shaft 21 only pass through one-stage boosting torque, so that the synchronizer gear shifting impulse of the transmission shafting arrangement scheme is much smaller than that of the short input shaft scheme of other existing manufacturers on the market, the gear shifting performance is improved, and the gear shifting quality of the manual transmission is improved.
The input shaft assembly further comprises an input shaft front bearing 3 and an input shaft middle bearing 7 which are arranged on the input shaft 1, the intermediate shaft assembly further comprises a front bearing 31, an intermediate shaft middle bearing 27 and an intermediate shaft rear bearing 20 which are arranged on an intermediate shaft 21, and the reverse shaft assembly further comprises a reverse shaft front bearing 8 and a reverse shaft rear bearing 14 which are arranged on a reverse shaft 13; wherein: the front bearing 3 of the input shaft is a deep groove ball bearing, the middle bearing 7 of the input shaft is a cylindrical bearing, and the front bearing 31 of the intermediate shaft is a cylindrical bearing; the intermediate shaft bearing 27 is a deep groove ball bearing. The advantages of the structure are that: the two ball bearings which bear axial force can be designed to be larger and stronger in size specification under the condition of smaller center distance, so that the requirements of load spectrum are met.
And the device also comprises a middle connecting plate (not shown in the figure), wherein the input shaft middle bearing 7 is positioned between the input shaft third gear assembly 6 and the input shaft second gear 9, the intermediate shaft middle bearing 27 is positioned between the intermediate shaft third gear assembly 28 and the intermediate shaft second gear assembly 26, and the input shaft middle bearing 7, the intermediate shaft middle bearing 27 and the reverse shaft front bearing 8 are installed on the middle connecting plate together.
The input shaft middle bearing 7 and the middle shaft middle bearing 27 are arranged between the second gear pair and the third gear pair and are supported by the middle connecting plate together with the reverse shaft front bearing 8, so that the supporting rigidity of the third gear pair and the fourth gear pair is ensured, meanwhile, the reverse bearing is better supported, the reverse shaft is prevented from becoming a cantilever beam structure, and the gear strength under the reverse working condition is ensured.
The middle connecting plate is provided with a bearing hole, a middle bearing 27 of the middle shaft and a front bearing 8 of the reverse shaft are arranged in the bearing hole of the middle connecting plate and are fixed through the first pressing plate and the second bolt. The two ball bearings are subjected to axial forces.
The middle shaft four-gear synchronizer assembly further comprises a locking nut 32 and a spacer bush 29, wherein the middle shaft four-gear 30 and the middle shaft three-gear 28 are pressed on the middle shaft 21 in a spline large-diameter centering mode and are axially fixed by the locking nut 32 together with the middle shaft front bearing 31, the spacer bush 29, a gear hub of the first-gear synchronizer assembly 25 and the middle shaft middle bearing 27.
The transmission also comprises a second pressure plate (not shown in the figure) and a second bolt (not shown in the figure), the inner ring of the front input shaft bearing 3 and the gear hub of the third-fourth gear synchronizer assembly 5 are axially fixed by the clamping ring 2, and the outer ring of the front input shaft bearing 3 is fixed on the box body of the transmission through the second pressure plate and the second bolt.
The output shaft assembly further comprises an output shaft front bearing 19, an output shaft bearing spacer 18, an output shaft rear bearing 17 and an output flange 16 which are sequentially arranged on the output shaft 15 from left to right, the output shaft front bearing 19 and the output shaft rear bearing 17 are installed on a box body of the transmission, two ends of the output shaft bearing spacer 18 respectively abut against the output shaft front bearing 19 and the output shaft bearing spacer 18, and the output flange 16 is fixed with the output shaft 15 through a locking nut.
The output shaft front bearing 19 and the output shaft rear bearing 17 are cone bearings, the outer rings of the two cone bearings are axially supported through an output shaft bearing spacer 18, the left end face of the outer ring of the output shaft front bearing 19 is fixed on the box body through a third pressing plate and a third bolt, and the inner ring of the output shaft rear bearing 17 and the output flange 16 are fixedly screwed through a locking nut.
Compared with the scheme of the existing large-torque rear-drive six-gear transmission on the market, the scheme of the long input shaft is adopted, all the forward gears except for the fifth gear (direct gear) are arranged on the input shaft, the first-stage speed reduction and torque increase are not carried out, and the smaller center distance can be realized under the same torque; because the gear pair on the long input shaft is not subjected to speed reduction and torque increase, the gear shifting impulse of the synchronizer is much smaller than that of the short input shaft scheme on the market at present, and the problem of poor gear shifting performance of the product on the market is solved.
The scheme improves the bearing arrangement scheme of the existing product scheme on the market, abandons the scheme that two ball bearings or one ball and one column are arranged at the front bearing position to bear the axial force, adopts the scheme of one ball and one column at the front bearing position and one ball and one column at the middle bearing position, can increase the model of the ball bearings, reduces the damage rate of the ball bearings bearing the axial force, and avoids the failure of the ball bearings bearing the axial force to generate medium-term mileage.
The scheme adopts the scheme that the reverse gear and the reverse synchronizer are arranged on the reverse shaft, the arrangement of four, three, two, one, six and five is adopted from the engine end to the output end, and the reverse gear of the middle shaft is shared by one reverse gear, so that the length of the reverse shaft can be reduced, and the integral weight reduction is realized.

Claims (8)

1. Six grades of rear-guard derailleur shafting structures, including input shaft subassembly, intermediate shaft subassembly, output shaft subassembly and reverse gear axle subassembly, its characterized in that: the input shaft assembly comprises an input shaft (1), and an input shaft four-gear assembly (4), a three-four-gear synchronizer assembly (5), an input shaft three-gear assembly (6), an input shaft two-gear tooth (9), an input shaft one-gear tooth (12), an input shaft six-gear assembly (23) and a five-six gear synchronizer assembly (22) are sequentially arranged on the input shaft (1) from left to right;
the middle shaft assembly comprises a middle shaft (21), and a middle shaft four-gear (30), a middle shaft three-gear (28), a middle shaft two-gear assembly (26), a two-gear synchronizer assembly (25), a middle shaft one-gear assembly (24) and a middle shaft six-gear assembly (34) are sequentially arranged on the middle shaft (21) from left to right; the middle shaft (21) is positioned on one side of the input shaft (1), a middle shaft fourth-gear (30) is meshed with the input shaft fourth-gear assembly (4), a middle shaft third-gear (28) is meshed with the input shaft third-gear assembly (6), a middle shaft second-gear assembly (26) is meshed with an input shaft second-gear tooth (9), a middle shaft first-gear assembly (24) is meshed with an input shaft first-gear tooth (12), and a middle shaft sixth-gear assembly (34) is meshed with an input shaft sixth-gear assembly (23);
the output shaft assembly comprises an output shaft (15) and five-gear teeth (35) used for forming a fifth forward gear when being combined with a fifth-sixth gear synchronizer assembly (22), the output shaft (15) is meshed with the intermediate shaft (21), one end of the output shaft (15) is provided with a containing cavity, the input shaft (1) and the output shaft (15) are coaxially arranged, the end part of the input shaft (1) is rotatably matched in the containing cavity of the output shaft (15), and the five-gear teeth (35) are fixed at one end of the output shaft (15);
the reverse bearing assembly comprises a reverse shaft (13), and a reverse synchronizer assembly (10) and a reverse gear assembly (11) which are arranged on the reverse shaft (13); the reverse gear shaft (13) is positioned on the other side of the input shaft (1), the reverse gear shaft (13) is meshed with the intermediate shaft (21), and the reverse gear assembly (11) is meshed with the first-gear teeth (12) of the input shaft.
2. The six-gear rear-drive transmission shafting structure according to claim 1, wherein the input shaft assembly further comprises an input shaft front bearing (3) and an input shaft middle bearing (7) which are arranged on the input shaft (1), the intermediate shaft assembly further comprises a front bearing (31) and an intermediate shaft middle bearing (27) which are arranged on the intermediate shaft (21), and the reverse shaft assembly further comprises a reverse shaft front bearing (8) which is arranged on the reverse shaft (13); wherein:
the front bearing (3) of the input shaft is a deep groove ball bearing, the middle bearing (7) of the input shaft is a cylindrical bearing, and the front bearing (31) of the middle shaft is a cylindrical bearing; the bearing (27) in the intermediate shaft adopts a deep groove ball bearing.
3. The six-speed rear-drive transmission shafting structure according to claim 1, further comprising a middle connecting plate, wherein the input shaft middle bearing (7) is positioned between the input shaft third-speed gear assembly (6) and the input shaft second-speed gear (9), the middle shaft middle bearing (27) is positioned between the middle shaft third-speed gear (28) and the middle shaft second-speed gear assembly (26), and the input shaft middle bearing (7) is mounted on the middle connecting plate together with the middle shaft middle bearing (27) and the reverse shaft front bearing (8).
4. The six-gear rear-drive transmission shafting structure according to claim 1, further comprising a first pressure plate and a first bolt, wherein the middle connecting plate is provided with a bearing hole, and the middle bearing (27) of the middle shaft and the front bearing (8) of the reverse shaft are installed in the bearing hole of the middle connecting plate and fixed through the first pressure plate and the second bolt.
5. The six-gear rear-drive transmission shafting structure according to claim 2, further comprising a lock nut (32) and a spacer (29), wherein the intermediate shaft four-gear (30) and the intermediate shaft three-gear (28) are press-fitted on the intermediate shaft (21) in a spline large-diameter centering manner, and are axially fixed by using the lock nut (32) together with the intermediate shaft front bearing (31), the spacer (29), the gear hub of the first-gear synchronizer assembly (25) and the intermediate shaft middle bearing (27).
6. The six-gear rear-drive transmission shafting structure is characterized by further comprising a second pressure plate and a second bolt, wherein the inner ring of the input shaft front bearing (3) and the gear hub of the third-fourth gear synchronizer assembly (5) are axially fixed by the clamping ring (2), and the outer ring of the input shaft front bearing (3) is fixed on the transmission box body through the second pressure plate and the second bolt.
7. The six-gear rear-drive transmission shafting structure according to claim 1, wherein the output shaft assembly further comprises an output shaft front bearing (19), an output shaft bearing spacer bush (18), an output shaft rear bearing (17) and an output flange (16) which are sequentially arranged on the output shaft (15) from left to right, the output shaft front bearing (19) and the output shaft rear bearing (17) are installed on a box body of the transmission, two ends of the output shaft bearing spacer bush (18) respectively abut against the output shaft front bearing (19) and the output shaft bearing spacer bush (18), and the output flange (16) is fixed with the output shaft (15) through a lock nut.
8. The six-speed rear-drive transmission shafting structure according to claim 1, wherein a bearing (33) is arranged in the receiving cavity of the output shaft (15), and the input shaft (1) is matched with the bearing (33).
CN202111532915.3A 2021-12-15 2021-12-15 Six-gear rear-drive transmission shafting structure Pending CN114165564A (en)

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Application Number Priority Date Filing Date Title
CN202111532915.3A CN114165564A (en) 2021-12-15 2021-12-15 Six-gear rear-drive transmission shafting structure

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Application Number Priority Date Filing Date Title
CN202111532915.3A CN114165564A (en) 2021-12-15 2021-12-15 Six-gear rear-drive transmission shafting structure

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Publication Number Publication Date
CN114165564A true CN114165564A (en) 2022-03-11

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CN204175888U (en) * 2014-08-28 2015-02-25 重庆青山工业有限责任公司 A kind of minicar six gear rear driving speed changers
CN204175884U (en) * 2014-10-09 2015-02-25 重庆青山工业有限责任公司 A kind of shafting structure of 5 grades of rear-guard speed changers
CN104896034A (en) * 2015-05-25 2015-09-09 重庆青山工业有限责任公司 6-gear rear-drive transmission
CN108412974A (en) * 2017-12-29 2018-08-17 綦江齿轮传动有限公司 It can be used for 4 speed transmission of combined type of hybrid power system and pure electric system simultaneously
CN213393371U (en) * 2020-06-22 2021-06-08 重庆青山工业有限责任公司 Manual transmission

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CN108412974A (en) * 2017-12-29 2018-08-17 綦江齿轮传动有限公司 It can be used for 4 speed transmission of combined type of hybrid power system and pure electric system simultaneously
CN213393371U (en) * 2020-06-22 2021-06-08 重庆青山工业有限责任公司 Manual transmission

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