CN201129447Y - Combined variable speed control mechanism - Google Patents

Combined variable speed control mechanism Download PDF

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Publication number
CN201129447Y
CN201129447Y CNU200720157328XU CN200720157328U CN201129447Y CN 201129447 Y CN201129447 Y CN 201129447Y CN U200720157328X U CNU200720157328X U CN U200720157328XU CN 200720157328 U CN200720157328 U CN 200720157328U CN 201129447 Y CN201129447 Y CN 201129447Y
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CN
China
Prior art keywords
speed
speed change
change
rod
shifting block
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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
CNU200720157328XU
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Chinese (zh)
Inventor
苑凤山
Original Assignee
苑凤山
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 苑凤山 filed Critical 苑凤山
Priority to CNU200720157328XU priority Critical patent/CN201129447Y/en
Application granted granted Critical
Publication of CN201129447Y publication Critical patent/CN201129447Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a combined speed-change control mechanism, which comprises a control rod, speed-change shifting forks, a main speed-change sliding rod, an auxiliary speed-change sliding rod, a main speed-change gear shift block and an auxiliary speed-change gear shift block. The combined speed-change control mechanism is characterized in that the mechanism further comprises a tie rod and a speed-change rod, two ends of the tie rod are respectively connected with screw rods via ball heads, the screw rods are fixedly connected with the lower end of the control rod and the upper end of the speed-change rod respectively, the control rod is connected with a control rod base spherical surface which is fixed on a speed changer, the speed-change rod is connected with a speed-change rod base spherical surface which is fixedly mounted on the front cover of a speed-change case, the lower end of the speed-change rod is fixedly connected with the speed-change shifting forks which are placed in cavities formed by the main speed-change gear shift block and the auxiliary speed-change shift block, and the axial length along the speed-change sliding rod of the cavity of the auxiliary speed-change gear shift block is longer than that of the cavity of the main speed-change gear shift block. The combined speed change control mechanism realizes shift between high speed and low speed and shift among different gears by operating the control rod, which is simple in structure and convenient in operation.

Description

Combined type speed change operating mechanism
Technical field
The utility model relates to a kind of gear controller of tractor, specifically a kind of combined type speed change operating mechanism.
Background technique
Existing tractor speed-changing operation device comprises main shift lever, secondary speed change lever, be connected gear shift fork, the slide bar on the major and minor speed change lever and be fixedly mounted on gear shifting block on the slide bar.Handle the conversion that the gear shifting block is realized high, low speed by secondary speed change lever, handle the conversion that the gear shifting block is realized gear by main shift lever.Like this, in the tractor traveling process, the driver need realize the conversion of different gears, friction speed by manipulation main shift lever, secondary speed change lever respectively, operates cumbersome.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, easy to operate combined type speed change operation equipment.
For achieving the above object, the utility model is by the following technical solutions:
A kind of combined type speed change operating mechanism described in the utility model, comprise operating handle, gear shift fork, main transformer ski-running bar, secondary speed change slide bar and be fixedly mounted on the main transformer speed gear shifting block on main transformer ski-running bar, the secondary speed change slide bar, secondary speed change gear shifting block respectively, its characteristics are: this mechanism also comprises drag link and speed change lever, and the two ends of drag link are connected with screw rod by bulb respectively; Screw rod is fixedlyed connected with the lower end of operating handle, the upper end of speed change lever respectively; Operating handle is connected with operating rod bearing sphere on being fixed on speed changer; Speed change lever is connected with speed change pole socket sphere on being fixedly mounted on the gearbox protecgulum; The fixedly connected gear shift fork in the lower end of speed change lever, gear shift fork place in the cavity of major and minor speed change gear shifting block formation; The cavity of secondary speed change gear shifting block along the speed change sliding pole axis to length greater than the cavity of main transformer speed gear shifting block along the speed change sliding pole axis to length.
The cavity of described secondary speed change gear shifting block along sliding pole axis to length be main transformer speed gear shifting block cavity along sliding pole axis to three times of length.
Be provided with Returnning spring in the described operating rod bearing, Returnning spring is arranged on the both sides of operating handle, and they are parallel with the speed change slide bar.
Operating handle of the utility model employing replaces main shift lever and the secondary speed change lever in traditional speed changing operating mechanism, realizes the conversion of high low speed and the conversion of different gears by the manipulation bar, and is simple in structure, easy to operate.
Description of drawings
Fig. 1 is an a kind of embodiment's of the present utility model structural representation;
Fig. 2 is the structural representation of major and minor speed change slide bar and major and minor gear shifting block among Fig. 1;
Fig. 3 is the structural representation of operating handle and drag link joint among Fig. 1;
Fig. 4 is the structural representation of speed change lever and drag link joint among Fig. 1.
Embodiment
The utility model will be further described below in conjunction with the drawings and specific embodiments.
A kind of combined type speed change operating mechanism, as shown in Figure 1 and Figure 2, comprise operating handle 1, gear shift fork 6, main transformer ski-running bar 7,10, secondary speed change slide bar 11, be fixedly mounted on the main transformer speed gear shifting block 8,9 on main transformer ski-running bar, the secondary speed change slide bar, secondary speed change gear shifting block 12, drag link 3 and speed change lever 4 respectively.Operating handle 1 is connected with operating rod bearing 2 spheres on being fixed on speed changer, is provided with Returnning spring 15 in the operating rod bearing 2, and Returnning spring is arranged on the both sides of operating handle 1, and they are parallel with major and minor speed change slide bar.As shown in Figure 3, Figure 4, the two ends of drag link 3 are connected with screw rod 32,22 by bulb 13,14 respectively, and screw rod 32,22 keeps vertical with drag link 3; Bulb 13,14 places in the ball-and-socket at drag link 3 two ends; The lower end of operating handle 1 has cone shape hole 21, and the upper end of speed change lever 4 also has cone shape hole 31; Screw rod 22,32 passes the cone shape hole 21,31 on operating handle and the speed change lever respectively, and passes through bolt.Speed change lever 4 is connected with speed change pole socket 5 spheres on being fixedly mounted on the gearbox protecgulum; The fixedly connected gear shift fork 6 in the lower end of speed change lever 4, gear shift fork 6 place in the cavity of major and minor speed change gear shifting block formation; The cavity of secondary speed change gear shifting block 12 along the speed change sliding pole axis to length be main transformer speed gear shifting block 8,9 cavity along the speed change sliding pole axis to three times of length.
Use tractor of the present utility model when advancing, the driver major and minor speed change slide bar axially on stir operating handle 1, operating handle 1 drive drag link 3 major and minor speed change slide bar axially on rotate, drag link 3 drives the axial runout of speed change lever 4 at major and minor speed change slide bar, speed change lever 4 drives gear shift forks 6 and stirs the conversion that secondary speed change gear shifting block 12 is realized high, low speeds: 12 groups of secondary speed change gear shifting blocks are when L holds, and low-speed tractor travels; 12 groups of secondary speed change gear shifting blocks are when H holds, and tractor is run at high speed.Since the cavity of secondary speed change gear shifting block 12 along the speed change sliding pole axis to length be main transformer speed gear shifting block 8,9 cavity along the speed change sliding pole axis to three times of length, after gear shift fork 6 was stirred secondary speed change gear shifting block 12, operating handle 1 can be got back to neutral position automatically under the effect of Returnning spring 15.
After finishing the operation of high, low speed, operating handle 1 is got back to neutral position automatically.At this moment, the driver stirs operating handle 1 earlier on the direction vertical with major and minor speed change slide bar, operating handle 1 drive drag link major and minor speed change slide bar axially on move, drag link 3 drives speed change lever 4 in the direction swing vertical with major and minor speed change slide bar, and gear shift fork 6 is placed in the cavity of main transformer speed gear shifting block 8 or main transformer speed gear shifting block 9; Then, the driver major and minor speed change slide bar axially on stir operating handle 1, operating handle 1 drive drag link 3 major and minor speed change slide bar axially on rotate, drag link 3 drives the axial runout of speed change lever 4 at major and minor speed change slide bar, speed change lever 4 drives gear shift fork 6 and stirs main transformer speed gear shifting block 8 or main transformer speed gear shifting block 9, realize the conversion of gear: dialled when I holds when main transformer speed gear shifting block 8, the gait of march of tractor is 1 gear speed; Dialled when II holds when main transformer speed gear shifting block 8, the gait of march of tractor is 2 gear speed; Dialled when III holds when main transformer speed gear shifting block 9, the gait of march of tractor is 3 gear speed; When tractor need be moveed backward, 9 groups of main transformer speed gear shifting blocks are held to R.
Certainly, the utility model also can be applied in the Motor Vehicle of more gears.

Claims (3)

1, a kind of combined type speed change operating mechanism, comprise operating handle (1), gear shift fork (6), main transformer ski-running bar (7,10), secondary speed change slide bar (11) and be fixedly mounted on main transformer speed gear shifting block (8,9), secondary speed change gear shifting block (12) on main transformer ski-running bar, the secondary speed change slide bar respectively, it is characterized in that: this mechanism also comprises drag link (3) and speed change lever (4), and the two ends of drag link (3) are connected with screw rod (32,22) by bulb (13,14) respectively; Screw rod (22,32) is fixedlyed connected with the lower end of operating handle (1), the upper end of speed change lever (4) respectively; Operating handle (1) is connected with operating rod bearing (2) sphere on being fixed on speed changer; Speed change lever (4) is connected with speed change pole socket (5) sphere on being fixedly mounted on the gearbox protecgulum; The fixedly connected gear shift fork in lower end (6) of speed change lever (4), gear shift fork (6) place in the cavity of major and minor speed change gear shifting block formation; The cavity of secondary speed change gear shifting block (12) along the speed change sliding pole axis to length greater than the cavity of main transformer speed gear shifting block (8,9) along the speed change sliding pole axis to length.
2, combined type speed change operating mechanism according to claim 1 is characterized in that: the cavity of described secondary speed change gear shifting block (12) along the speed change sliding pole axis to length be main transformer speed gear shifting block (8,9) cavity along the speed change sliding pole axis to three times of length.
3, combined type speed change operating mechanism according to claim 2, it is characterized in that: be provided with Returnning spring (15) in the described operating rod bearing (2), Returnning spring is arranged on the both sides of operating handle (1), and they are parallel with the speed change slide bar.
CNU200720157328XU 2007-11-22 2007-11-22 Combined variable speed control mechanism Expired - Fee Related CN201129447Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU200720157328XU CN201129447Y (en) 2007-11-22 2007-11-22 Combined variable speed control mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU200720157328XU CN201129447Y (en) 2007-11-22 2007-11-22 Combined variable speed control mechanism

Publications (1)

Publication Number Publication Date
CN201129447Y true CN201129447Y (en) 2008-10-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU200720157328XU Expired - Fee Related CN201129447Y (en) 2007-11-22 2007-11-22 Combined variable speed control mechanism

Country Status (1)

Country Link
CN (1) CN201129447Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103072481A (en) * 2012-12-21 2013-05-01 荣成市海山机械制造有限公司 Power output operating device for tractor
CN103711886A (en) * 2012-09-29 2014-04-09 北汽福田汽车股份有限公司 Shifter, vehicle transmission operating mechanism, and vehicle
CN105333136A (en) * 2015-11-30 2016-02-17 常州东风农机集团有限公司 Roller tractor speed changing box remote-operating mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103711886A (en) * 2012-09-29 2014-04-09 北汽福田汽车股份有限公司 Shifter, vehicle transmission operating mechanism, and vehicle
CN103072481A (en) * 2012-12-21 2013-05-01 荣成市海山机械制造有限公司 Power output operating device for tractor
CN105333136A (en) * 2015-11-30 2016-02-17 常州东风农机集团有限公司 Roller tractor speed changing box remote-operating mechanism

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Legal Events

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: 20081008

Termination date: 20121122