CN202719084U - Final transmission reduction box for high-horsepower tractor - Google Patents

Final transmission reduction box for high-horsepower tractor Download PDF

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Publication number
CN202719084U
CN202719084U CN 201220320489 CN201220320489U CN202719084U CN 202719084 U CN202719084 U CN 202719084U CN 201220320489 CN201220320489 CN 201220320489 CN 201220320489 U CN201220320489 U CN 201220320489U CN 202719084 U CN202719084 U CN 202719084U
Authority
CN
China
Prior art keywords
shaft assembly
gear
output shaft
output
assembly
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.)
Expired - Fee Related
Application number
CN 201220320489
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Chinese (zh)
Inventor
李翊
殷浩东
孙大峰
刘冬梅
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.)
Xuzhou Liangyu Technology Co Ltd
Original Assignee
Xuzhou Liangyu Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xuzhou Liangyu Technology Co Ltd filed Critical Xuzhou Liangyu Technology Co Ltd
Priority to CN 201220320489 priority Critical patent/CN202719084U/en
Application granted granted Critical
Publication of CN202719084U publication Critical patent/CN202719084U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a final transmission reduction box for a high-horsepower tractor, and belongs to a final transmission reduction box. The final transmission reduction box comprises a box body, a box cover, an input shaft assembly, an intermediate shaft assembly and an output shaft assembly; the box body is connected with the box cover through bolts and positioning pins; the input shaft assembly, the intermediate shaft assembly and the output shaft assembly are sequentially connected to the box body and arranged on the box body and the box cover through bearings; and the input shaft assembly, the intermediate shaft assembly and the output shaft assembly are engaged through gears. The utility model has the advantages that the final transmission reduction box can realize final transmission reduction of double-speed output of single shafts, is applied to the 130 to 270-horsepower tractor, and is simple in structure, reliable in work and long in service life, and realizes double-speed output of the single shafts. Each shaft assembly is arranged on the box body, so the reduction box is high in bearing capacity. By adopting small-diameter centering connection of rectangular splines, the bearing capacity is high; by adopting a grinding method, the centering precision and the centering stability are high; and by adopting the grinding method, heat treatment deformation is eliminated.

Description

A kind of big-powered tractor is with whole transmission speed reducer
Technical field
The utility model relates to a kind of whole transmission speed reducer, particularly a kind of big-powered tractor with whole transmission speed reducer.
Background technique:
Tractor is compared with other vehicle as the main traction drive system of farm machinery, and its service condition is complicated, needs continually conversion operating mode, and tractor stagnation of movement, engine idling time are long.Secondly tractor travel inclement condition requires to increase power output during agricultural operation, and is large to the allocating power requirement of motor; And farm work needs to utilize the damping of motor to brake when turning, and motor enters the towing astern operating mode, causes that discharging increases.Existing internal combustion engine power plant and transmission system can not satisfy these requirements well.Current along with Tractor Products develops to high-power, multiple gear ratios, require whole transmission speed reducer compact dimensions, output torque large, and the final gearbox that adopts on the present tractor is mostly owing to adopting the output of single shaft single speed or twin shaft double speed export structure, output power taking unreasonable structure can't satisfy main frame and user's specific (special) requirements.
The model utility content
The purpose of this utility model is to provide a kind of big-powered tractor with whole transmission speed reducer, solves the final gearbox that adopts on the present tractor most owing to adopting the output of single shaft single speed or twin shaft double speed export structure, the problem of output power taking unreasonable structure.
The purpose of this utility model is achieved in that this transmission at end speed reducer comprises casing, case lid, input shaft assembly, countershaft assembly and output shaft assembly, casing is connected by bolt, locating stud with case lid, in casing, be linked in sequence input shaft assembly, countershaft assembly and output shaft assembly, input shaft assembly, countershaft assembly, output shaft assembly by bearings on casing and case lid; Mesh by gear between input shaft assembly, countershaft assembly and the output shaft assembly.
Described input shaft assembly comprises: input flange, the first power shift gear, gearshift tooth cover and the second power shift gear, end at input shaft passes casing and is connected with input flange, input flange is positioned at outside the casing, be connected with gearshift tooth cover in the neutral position of input shaft, overlap two sides at the gearshift tooth and be connected with respectively the first power shift gear and the second power shift gear; Two change gear sides oil groove is arranged, at cylindrical oilhole is arranged.
Described countershaft assembly comprises: the first intermediate gear and the second intermediate gear, the first intermediate gear and the second intermediate gear all are connected on the jack shaft, and the position of the first intermediate gear and the second intermediate gear is corresponding with the first power shift gear and the second power shift gear.
Described output shaft assembly has output gear, and output gear is connected on the output shaft, and the position of output gear on output shaft is corresponding with the second intermediate gear, and an end of output shaft passes casing.
Beneficial effect, owing to having adopted such scheme, by being contained in the input flange input power on the input shaft, when speed ratio is 1.188, be combined with the first power shift gear by gearshift tooth cover, transmitting torque is delivered to the first intermediate gear, be delivered at last output gear, outputting power by the second intermediate gear again; When speed ratio is 1.86, to be combined with the second power shift gear by gearshift tooth cover, transmitting torque is delivered to the second intermediate gear, is delivered at last output gear, outputting power; Casing adopts weldment, is used for supporting input shaft assembly, countershaft assembly, output shaft assembly.Adopt multi-stage speed-reducing, realize the output of single shaft double speed; By the cover of the gear shift tooth on the input shaft or synchronizer gearshift, the switching of control output shaft rotating speed; The change gear side is milled with oil groove, is drilled with oilhole on the cylindrical, guarantees the normal lubricated of inner needle bearing.Solved the final gearbox that adopts on the present tractor most owing to adopting the output of single shaft single speed or twin shaft double speed export structure, the problem of output power taking unreasonable structure has reached the purpose of this utility model.
Advantage: the whole transmission that can realize single shaft double speed output is slowed down, and is applicable to 130 ~ 270 horsepowers of tractors, simple in structure, reliable operation, life-span long, has realized that the single shaft double speed exports.Each axle assembly is installed on the casing, and bearing capacity is strong.Countershaft assembly adopts the centering of rectangular spline path to connect with output shaft assembly middle gear and axle, and bearing capacity is high, adopts the method for grinding, and centering precision is high, and the good stability of centering adopts the method for grinding to eliminate heat treatment deformation.Input shaft assembly gearshift mechanism adopts tooth cover or synchronizer shift.The change gear side is milled with oil groove, is drilled with oilhole on the cylindrical, guarantees the normal lubricated of inner needle bearing.
Description of drawings
Fig. 1 is structural drawing of the present utility model.
Fig. 2 is the utility model front shape assumption diagram.
Fig. 3 is the utility model side shape assumption diagram.
Among the figure, 1, casing; 2, case lid; 3, input shaft assembly; 4, countershaft assembly; 5, output shaft assembly; 3-1, input flange; 3-2, the first power shift gear; 3-3, gearshift tooth cover; 3-4, the second power shift gear; 4-1, the first intermediate gear; 4-2, the second intermediate gear; 5-1, output gear.
Embodiment
Embodiment 1: this transmission at end speed reducer comprises casing 1, case lid 2, input shaft assembly 3, countershaft assembly 4 and output shaft assembly 5, casing 1 is connected by bolt, locating stud with case lid 2, in casing, be linked in sequence input shaft assembly, countershaft assembly and output shaft assembly, input shaft assembly 3, countershaft assembly 4, output shaft assembly 5 by bearings on casing 1 and case lid 2; Mesh by gear between input shaft assembly, countershaft assembly and the output shaft assembly.
Described input shaft assembly comprises: input flange 3-1, the first power shift gear 3-2, gearshift tooth cover 3-3 and the second power shift gear 3-4, end at input shaft is connected with input flange 3-1, input flange 3-1 is positioned at outside the casing 1, be connected with gearshift tooth cover 3-3 in the neutral position of input shaft, be connected with respectively the first power shift gear 3-2 and the second power shift gear 3-4 in gearshift tooth cover 3-3 two sides; Two change gear sides oil groove is arranged, at cylindrical oilhole is arranged.
Described countershaft assembly comprises: the first intermediate gear 4-1 and the second intermediate gear 4-2, the first intermediate gear 4-1 and the second intermediate gear 4-2 all are connected on the jack shaft, and the position of the first intermediate gear 4-1 and the second intermediate gear 4-2 is corresponding with the first power shift gear 3-2 and the second power shift gear 3-4.
Described output shaft assembly has output gear 5-1, and output gear 5-1 is connected on the output shaft, and the position of output gear 5-1 on output shaft is corresponding with the second intermediate gear 4-2, and an end of output shaft protrudes casing.
The secondary Involute Gear Pair that adopts of speed reducer active and passive gear.Casing 1, case lid 2 adopt foundry goods or welding structural element.Each axle assembly is installed on the casing, and bearing capacity is strong.Countershaft assembly is felt relieved with axle employing rectangular spline path with the gear in the output shaft assembly and is connected, and bearing capacity is high, adopts the method for grinding, and centering precision is high, and the good stability of centering adopts the method for grinding to eliminate heat treatment deformation.Input shaft assembly gearshift mechanism adopts the gear shift of tooth cover.The change gear side is milled with oil groove, is drilled with oilhole on the cylindrical, guarantees the normal lubricated of inner needle bearing.
The speed ratio of Involute Gear Pair may be selected to be according to need of work: 1.86,1.188 or 1.77,2.855.

Claims (4)

1. a big-powered tractor is with whole transmission speed reducer, it is characterized in that: this transmission at end speed reducer comprises casing, case lid, input shaft assembly, countershaft assembly and output shaft assembly, casing is connected by bolt, locating stud with case lid, in casing, be linked in sequence input shaft assembly, countershaft assembly and output shaft assembly, input shaft assembly, countershaft assembly, output shaft assembly by bearings on casing and case lid; Mesh by gear between input shaft assembly, countershaft assembly and the output shaft assembly.
2. a kind of big-powered tractor according to claim 1 is with whole transmission speed reducer, it is characterized in that: described input shaft assembly comprises: input flange, the first power shift gear, gearshift tooth cover and the second power shift gear, end at input shaft passes casing and is connected with input flange, input flange is positioned at outside the casing, be connected with gearshift tooth cover in the neutral position of input, overlap two sides at the gearshift tooth and be connected with respectively the first power shift gear and the second power shift gear; Two change gear sides oil groove is arranged, at cylindrical oilhole is arranged.
3. a kind of big-powered tractor according to claim 1 is with whole transmission speed reducer, it is characterized in that: described countershaft assembly comprises: the first intermediate gear and the second intermediate gear, the first intermediate gear and the second intermediate gear all are connected on the jack shaft, and the position of the first intermediate gear and the second intermediate gear is corresponding with the first power shift gear and the second power shift gear.
4. a kind of big-powered tractor according to claim 1 is with whole transmission speed reducer, it is characterized in that: described output shaft assembly has output gear, output gear is connected on the output shaft, and the position of output gear on output shaft is corresponding with the second intermediate gear, and an end of output shaft passes casing.
CN 201220320489 2012-07-04 2012-07-04 Final transmission reduction box for high-horsepower tractor Expired - Fee Related CN202719084U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220320489 CN202719084U (en) 2012-07-04 2012-07-04 Final transmission reduction box for high-horsepower tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220320489 CN202719084U (en) 2012-07-04 2012-07-04 Final transmission reduction box for high-horsepower tractor

Publications (1)

Publication Number Publication Date
CN202719084U true CN202719084U (en) 2013-02-06

Family

ID=47620908

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220320489 Expired - Fee Related CN202719084U (en) 2012-07-04 2012-07-04 Final transmission reduction box for high-horsepower tractor

Country Status (1)

Country Link
CN (1) CN202719084U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206518A (en) * 2013-04-21 2013-07-17 钟婕 Evenly distributed variable-speed leak-proof container
CN103234026A (en) * 2013-04-26 2013-08-07 钟婕 Power triple speed changer
CN104595423A (en) * 2015-01-22 2015-05-06 中国石油天然气集团公司 Two-gear gear speed reducing box used for top driving well drilling device
CN106641124A (en) * 2017-01-11 2017-05-10 江苏泰隆减速机股份有限公司 Double speed ratio gear reducer for workover rig winch
CN110762185A (en) * 2018-07-26 2020-02-07 江苏泰隆减速机股份有限公司 Speed reducer for steel slag car

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206518A (en) * 2013-04-21 2013-07-17 钟婕 Evenly distributed variable-speed leak-proof container
CN103234026A (en) * 2013-04-26 2013-08-07 钟婕 Power triple speed changer
CN104595423A (en) * 2015-01-22 2015-05-06 中国石油天然气集团公司 Two-gear gear speed reducing box used for top driving well drilling device
CN106641124A (en) * 2017-01-11 2017-05-10 江苏泰隆减速机股份有限公司 Double speed ratio gear reducer for workover rig winch
CN110762185A (en) * 2018-07-26 2020-02-07 江苏泰隆减速机股份有限公司 Speed reducer for steel slag car

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130206

Termination date: 20130704