CN202327058U - Automatic gear shift mechanism of power output shaft of tractor - Google Patents
Automatic gear shift mechanism of power output shaft of tractor Download PDFInfo
- Publication number
- CN202327058U CN202327058U CN2011204597121U CN201120459712U CN202327058U CN 202327058 U CN202327058 U CN 202327058U CN 2011204597121 U CN2011204597121 U CN 2011204597121U CN 201120459712 U CN201120459712 U CN 201120459712U CN 202327058 U CN202327058 U CN 202327058U
- Authority
- CN
- China
- Prior art keywords
- power output
- gear
- output shaft
- head
- 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.)
- Expired - Fee Related
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- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model provides an automatic gear shift mechanism of a power output shaft of a tractor. The automatic gear shift mechanism comprises a low-speed power output shaft head, a high-speed power output shaft head, a shaft head nut, a shaft head bolt, a gear shifting ejector rod, a driven power output shaft, a low-speed driven gear, a meshing sleeve, a fixed gear seat, a gear shifting fork, a high-speed driven gear, a shifting fork shaft, a hinge pin and a gear shifting spring plate, wherein the fixed gear seat is sleeved on the driven power output shaft, the low-speed driven gear and the high-speed driven gear are sleeved on the driven power output shaft, are respectively arranged at two sides of the fixed gear seat, and can rotate around the driven power output shaft, and splines on the low-speed driven gear and the high-speed driven gear abutt the fixed gear seat; the meshing sleeve is sleeved on the fixed gear seat, a fork mouth of the gear shifting fork is arranged in a groove of the meshing sleeve, the shifting fork shaft is fixedly connected with the gear shifting fork, the fork mouth of the gear shifting spring plate is arranged on the shifting fork shaft in an inserted manner, and the upper end of the gear shifting spring plate is rolled and is sleeved on the hinge pin; a spherical head part of the gear shifting ejector rod props against the gear shifting spring plate; and the low-speed power output shaft head and the high-speed power output shaft head are fixedly connected with the driven power output shaft.
Description
Technical field
The utility model belongs to the tractor field, relates to a kind of tractor motive power output shaft self shifter mechanism.
Background technique
At present, on the big-and-middle-sized wheeled tractor of producing at home, the most mechanical handling bars that adopt of its power output shift control mechanism are shifted gears, and need the loaded down with trivial details mechanical handling mechanism of a cover.Especially when conversion power output speed, should change the pto spindle nose,, bring many difficulties for the layout of tractor complete machine again with the operating handle gearshift.Simultaneously, because the component universality of operating mechanism is relatively poor between the various tractor types, thereby manufacturing, assembling, maintenance and user cost have been increased.Therefore be necessary to develop a kind of simple in structure, make things convenient for the shift control mechanism that complete machine is arranged, component universality is high, can reduce manufacturing, assembling, maintenance and user cost.
The model utility content
The purpose of the utility model be to provide a kind of simple in structure, make things convenient for the tractor motive power output shaft self shifter mechanism that complete machine is arranged, component universality is high, make things convenient for tractor dynamic power output gear shift operation.
The technological scheme of the utility model is: tractor motive power output shaft self shifter mechanism comprises: low speed pto head, high speed pto head, axis head nut, spindle nose bolt, gearshift push rod, power output driven shaft, low speed driven gear, engagement cover, fixedly toothholder, selector fork, high speed driven gear, declutch shift shaft, bearing pin, gearshift latch plate.Fixedly toothholder is connected on the power output driven shaft through spline housing, and low speed driven gear and high speed driven gear are enclosed within on the power output driven shaft, lay respectively at fixedly toothholder both sides, can export driven shaft around power and rotate, and the spline on the gear is pressed close to fixedly toothholder; Engagement cover through spline housing be connected on the fixing toothholder, the prong of selector fork is contained in the groove of engagement cover, declutch shift shaft is fixedly connected with selector fork, the prong of the latch plate of shifting gears is inserted on the declutch shift shaft, rolls and be enclosed within on the bearing pin on it; The spherical head of gearshift push rod withstands on the gearshift latch plate; Low speed pto head is fixedly connected with power output driven shaft with the spindle nose bolt through axis head nut with high speed pto head.
The utility model can reach following beneficial effect after adopting technique scheme: adopt the PTO of the utility model for two gears; Can directly between two gears, switch through changing spindle nose; And the different tractor spindle noses of power can be general; The utility model is easy to use and reliable, and cost is low, and part universality is high.
Description of drawings
Fig. 1 is the structural representation of the utility model tractor motive power output shaft self shifter mechanism.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified; As shown in Figure 1; A tractor motive power output shaft self shifter mechanism comprises: low speed pto head 1, high speed pto head 2, axis head nut 3, spindle nose bolt 4, gearshift push rod 5, power output driven shaft 6, low speed driven gear 7, engagement cover 8, fixedly toothholder 9, selector fork 10, high speed driven gear 11, declutch shift shaft 12, bearing pin 13, the latch plate 14 of shifting gears.Fixedly toothholder 9 is connected on the power output driven shaft 6 through spline housing; Low speed driven gear 7 is enclosed within on the power output driven shaft 6 with high speed driven gear 11; Lay respectively at fixedly toothholder 9 both sides, can export driven shaft 6 around power and rotate, the spline on the gear is pressed close to fixedly toothholder 9; Engagement cover 8 is connected on fixedly on the toothholder 9 through spline housing, can articulate with the spline on low speed driven gear 7 or the high speed driven gear 11 when horizontally slipping, and the prong of selector fork 10 is inserted in the groove of engagement cover 8, can stir engagement and overlap 8 move left and right; Declutch shift shaft 12 is fixedly connected with selector fork 10, and the prong of gearshift latch plate 14 is inserted on the declutch shift shaft 12, and its upper end rolls and is enclosed within on the bearing pin 13; The spherical head of gearshift push rod 5 withstands on the gearshift latch plate 14.Gearshift latch plate 14 can rotate around bearing pin 13, and prong pulling this moment declutch shift shaft 12 moves, and makes selector fork 10 stir engagement cover 8 and moves, and realizes gearshift.Low speed pto head 1 is fixedly connected with power output driven shaft 6 with spindle nose bolt 4 through axis head nut 3 with high speed pto head 2.
As shown in Figure 1; When loading onto low speed pto head 1, because a hole is arranged in the middle of the flanged surface, gearshift push rod 5 puts in the hole under the 14 elastic force effects of gearshift latch plate; Gearshift latch plate 14 is in vertical position; Promote declutch shift shaft 12 in the low order end position, this moment, selector fork 10 overlapped 8 also in the least significant with engagement, articulated low speed driven gear 7.
When loading onto high speed pto head 2; Owing to there is not the hole in the middle of the flanged surface, the plane promotes gearshift push rod 5 and is moved to the left, and moves to left thereby promote gearshift latch plate 14; Gearshift latch plate 14 pulling declutch shift shafts 12 are moved to the left; Selector fork 10 is stirred engagement cover 8 and is moved, and articulates high speed driven gear 11, realizes switching from low speed to high speed.
Claims (1)
1. tractor motive power output shaft self shifter mechanism comprises: low speed pto head (1), high speed pto head (2), axis head nut (3), spindle nose bolt (4), gearshift push rod (5), power output driven shaft (6), low speed driven gear (7), engagement cover (8), fixedly toothholder (9), selector fork (10), high speed driven gear (11), declutch shift shaft (12), bearing pin (13), the latch plate (14) of shifting gears; It is characterized in that: fixedly toothholder (9) is connected on the power output driven shaft (6) through spline housing; Low speed driven gear (7) and high speed driven gear (11) are enclosed within on the power output driven shaft (6); Lay respectively at fixedly toothholder (9) both sides; Can export driven shaft (6) around power and rotate, the spline on the gear is pressed close to fixedly toothholder (9); Engagement cover (8) is connected on through spline housing that fixing toothholder (9) is gone up, the prong of selector fork (10) is contained in the groove of engagement cover (8); Declutch shift shaft (12) is fixedly connected with selector fork (10); The prong of gearshift latch plate (14) is inserted on the declutch shift shaft (12), and its upper end rolls and is enclosed within on the bearing pin (13); The spherical head of gearshift push rod (5) withstands on the gearshift latch plate (14); Low speed pto head (1) is fixedly connected with power output driven shaft (6) with spindle nose bolt (4) through axis head nut (3) with high speed pto head (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204597121U CN202327058U (en) | 2011-11-18 | 2011-11-18 | Automatic gear shift mechanism of power output shaft of tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204597121U CN202327058U (en) | 2011-11-18 | 2011-11-18 | Automatic gear shift mechanism of power output shaft of tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327058U true CN202327058U (en) | 2012-07-11 |
Family
ID=46439037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204597121U Expired - Fee Related CN202327058U (en) | 2011-11-18 | 2011-11-18 | Automatic gear shift mechanism of power output shaft of tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108162752A (en) * | 2017-12-05 | 2018-06-15 | 安徽农业大学 | A kind of double gear variable-ratio front-mounted power output devices of tractor |
-
2011
- 2011-11-18 CN CN2011204597121U patent/CN202327058U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108162752A (en) * | 2017-12-05 | 2018-06-15 | 安徽农业大学 | A kind of double gear variable-ratio front-mounted power output devices of tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20181118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |