CN204533388U - A kind of Novel tractor facility dynamic retarding case - Google Patents

A kind of Novel tractor facility dynamic retarding case Download PDF

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Publication number
CN204533388U
CN204533388U CN201520179318.0U CN201520179318U CN204533388U CN 204533388 U CN204533388 U CN 204533388U CN 201520179318 U CN201520179318 U CN 201520179318U CN 204533388 U CN204533388 U CN 204533388U
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China
Prior art keywords
shaft
pto
gear
clutch
input shaft
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CN201520179318.0U
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Chinese (zh)
Inventor
巫硕琦
谢素莲
白承晖
王赵良
庞莲香
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GUANGXI LANGUANG TECHNOLOGY CO LTD
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GUANGXI LANGUANG TECHNOLOGY CO LTD
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Abstract

The utility model discloses a kind of Novel tractor facility dynamic retarding case, it comprises PTO power input shaft, jack shaft, PTO pto=power take-off, declutch shift shaft, gearshift mechanism, PTO power input shaft is provided with clutch operating mechanism, clutch and input shaft gear, jack shaft is provided with countershaft-gear I, middle shaft helical teeth wheel II and middle shaft helical teeth wheel III, countershaft-gear I engages with input shaft gear; PTO pto=power take-off there are output shaft gear, duplicate gear I, duplicate gear II and change gear.Duplicate gear I and middle shaft helical teeth wheel II engagement, duplicate gear II and middle shaft helical teeth wheel III engagement, PTO pto=power take-off has spline shaft joint stretching out casing outer end, and left end is provided with initiatively duplex chain wheel.Clutch fork assembly and gearshift mechanism is provided with in casing.The utility model speed reducer can realize third gear conversion, and two gear power speed changings steadily export, and can realize the double dynamical output in front and back, can independent gear shift operation, reliable, can meet the multipurpose demand of tractor.

Description

A kind of Novel tractor facility dynamic retarding case
Technical field
The utility model belongs to agricultural mechanical field, specifically relates to a kind of Novel tractor facility dynamic retarding case being applied to 30-70 horsepower tractor.
Background technique
The tractor dynamic power output unit of domestic current appearance is generally drawn through main transmission, clutch, gearbox, rear axle box, PTO power output speed changing box, this tractor for conventional construction is a kind of arrangement reliably, but complicated structure, maintenance difficulty are large, and traditional speed reducer only has a clutch end, because PTO power output speed changing box is not directly connected with tractor engine, affect the outfitting tool expansion of Multipurpose tractor.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of Novel tractor facility dynamic retarding case, double dynamical output before and after realizing, and makes the operation of tractor more steady, reliable, keeps in repair more convenient.
The utility model solves the problems of the technologies described above with following technological scheme:
The utility model tractor facility dynamic retarding case, comprise PTO Gearbox 32 and be arranged on the PTO power input shaft 1 on PTO Gearbox 32, jack shaft 8, PTO pto=power take-off 13, declutch shift shaft 47, gearshift mechanism 33, PTO power input shaft 1 in described casing is provided with clutch operating mechanism 3 and clutch 4, clutch 4 can be engaged with PTO power input shaft 1 by clutch operating mechanism 3, the outboard end of clutch 4 is fixedly connected with clutch compressing disc 5 and input shaft gear 6, clutch compressing disc 5 and input shaft gear 6 are connected as a single entity, slide bushing 7 is had between input shaft gear 6 and PTO power input shaft 1, described jack shaft 8 is installed with countershaft-gear I9, major diameter middle shaft helical teeth wheel II 11 and minor diameter middle shaft helical teeth wheel III21, countershaft-gear I9 engages with input shaft gear 6, PTO pto=power take-off 13 is provided with the output shaft gear 56 be connected with PTO pto=power take-off, and be arranged on the little duplicate gear I16 of output shaft gear 56 left and right sides, large duplicate gear II 19, little duplicate gear I16, be respectively equipped with needle bearing 15 between duplicate gear II19 and PTO pto=power take-off 13 greatly, change gear 18 is connected with output shaft gear 56 by inner spline housing 17, little duplicate gear I16 and major diameter middle shaft helical teeth take turns that II11 is meshed, large duplicate gear II19 takes turns III21 with minor diameter middle shaft helical teeth and is meshed, and change gear 18 drives it to engage with large duplicate gear II 19 or little duplicate gear I16 by the reverse shift fork 40 be arranged on declutch shift shaft 47, PTO pto=power take-off 13 is provided with initiatively duplex chain wheel 54 in the one end of stretching out casing, the other end is provided with spline shaft joint 49, can be connected realize rear Power output by spline shaft joint 49 and active duplex chain wheel 54 with other agricultural equipments.
The top of described PTO power input shaft 1 is provided with the clutch fork assembly 26 that can promote clutch operating mechanism 3, the both sides of clutch fork assembly 26 connect back shaft I28 and back shaft II30 respectively, back shaft I28 and back shaft II30 is arranged on the both sides, front and back of casing respectively, two back shaft one end in casing are located by expanding ring I29 respectively and are prevented from moving forward and backward, each back shaft is sealed by two O RunddichtringO I31 respectively, prevent hydraulic fluid leak, it is outer and be fixedly connected with clutch driving lever 27 that one of them back shaft stretches out casing.
Described gearshift mechanism 33 is arranged on the front side of PTO Gearbox 32, it comprises the arm of force 34, arm of force back shaft 37, driving lever 44, gear shift fork 40, adjustment bolt 42, adjusting nut 43, Compress Spring 45, declutch shift shaft 47, steel ball 48, declutch shift shaft 47 two ends are sleeved on PTO Gearbox 32, the two ends of declutch shift shaft 47 are respectively provided with O RunddichtringO III46 and seal, and wherein one end is provided with pressing plate 55 and fixes spacing; Arm of force back shaft 37 is positioned on casing by expanding ring II36, and sealed by two O RunddichtringO II35, arm of force back shaft 37 is fixedly connected with the arm of force 34 on the one end of stretching out casing, driving lever 44 is installed in one end in casing, the other end of driving lever 44 is shelved in the U-type groove of reverse shift fork 40, reverse shift fork 40 to be slidably installed on declutch shift shaft 47 and can to clamp change gear 18, realizes stirring change gear 18 and moves left and right.
The middle part of described declutch shift shaft 47 is provided with the groove of three semicircles, reverse shift fork 40 is provided with the passage stretching into groove, the steel ball 48 that can fall into groove and the Compress Spring 45 heading on steel ball are installed on that channel, the outboard end of Compress Spring 45 is provided with adjustment bolt 42 and adjusting nut 43, for the elasticity regulating Compress Spring 45.
The top of described PTO Gearbox 32 is provided with clutch adjustment window cover 50, and clutch adjustment window cover 50 is provided with bleeder screw 51; The bottom of PTO Gearbox 32 is provided with oil return apparatus 41.
Described PTO Gearbox 32 is fixed in tractor Rear frame 38 by connecting bolt 39.
Described PTO power input shaft 1 stretches out the front end of casing by installing adpting flange 24, spline belt pulley shaft joint 25, roller chain shaft joint 23 inside lateral successively, and the other end is provided with oil duct I52; Be provided with slide bushing 7 between input shaft gear 6 and PTO power input shaft 1, input shaft gear 6 be provided with oil duct II53.
Be provided with spacer I 14 between described little duplicate gear I16 and PTO Gearbox 32, between large duplicate gear II19 and PTO Gearbox 32, be provided with spacer II20.
The profile of tooth of described little duplicate gear I16, major diameter middle shaft helical teeth wheel I11, large duplicate gear II19 and minor diameter middle shaft helical teeth wheel II21 is helical teeth.
The structure of the utility model tractor facility dynamic retarding case is simple, can realize third gear conversion, reach double speed and steadily export, can independent gear shift operation, makes the operation of tractor more reliable, can meet the multipurpose demand of tractor.
Accompanying drawing explanation
Fig. 1 is the cutting facade structures schematic diagram of the utility model tractor facility dynamic retarding case.
Fig. 2 be Fig. 1 overlook cut-away illustration.
Fig. 3 is that cut-away illustration is looked on a left side of Fig. 1.
In figure: 1-PTO power input shaft, 2-bearing I, 3-clutch operating mechanism, 4-clutch, 5-clutch compressing disc, 6-input shaft gear, 7-slide bushing, 8-jack shaft, 9-countershaft-gear I, 10-bearing I I, 11-major diameter middle shaft helical teeth wheel II, 12-bearing I II, 13-PTO pto=power take-off, 14-spacer I, 15-needle bearing, the little duplicate gear I of 16-, 17-inner spline housing, 18-power shift gear, the large duplicate gear II of 19-, 20-spacer II, 21-minor diameter middle shaft helical teeth wheel III, 22-bearing I V, 23-roller chain shaft joint, 24-adpting flange, 25-spline belt pulley shaft joint 26-clutch shifter assembly, 27-clutch dead man, 28-back shaft I, 29-expanding ring I, 30-back shaft II, 31-O RunddichtringO I, 32-PTO Gearbox, 33-gearshift mechanism, the 34-arm of force, 35-O RunddichtringO II, 36-expanding ring II, 37-arm of force back shaft, 38-Rear frame, 39-connecting bolt, 40-reverse shift fork, 41-oil return apparatus, 42-adjusts bolt, 43-adjusting nut, 44-driving lever, 45-Compress Spring, 46-O RunddichtringO III, 47-declutch shift shaft, 48-steel ball, 49-spline shaft joint, 50-clutch adjustment window cover, 51-bleeder screw, 52-oil duct I, 53-oil duct II, 54-is duplex chain wheel initiatively, 55-pressing plate, 56-output shaft gear.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1, Figure 2 and Figure 3, the utility model tractor facility dynamic retarding case is fixed in tractor Rear frame 38 by connecting bolt 39, PTO Gearbox 32 comprises PTO Gearbox 32 and is arranged on the PTO power input shaft 1 on PTO Gearbox 32, jack shaft 8, PTO pto=power take-off 13, declutch shift shaft 47, gearshift mechanism 33, PTO Gearbox 32 installs PTO power input shaft 1 by bearing I 2, by bearing I I 10 and bearing I V22, jack shaft 8 is installed, by bearing I II12, PTO pto=power take-off 13 is installed, the two ends of declutch shift shaft 47 are sleeved on the both sides, front and back of PTO Gearbox 32, adpting flange 24 is installed successively by inside lateral in the front end that PTO power input shaft 1 stretches out casing, spline belt pulley shaft joint 25, roller chain shaft joint 23, the rear end of stretching out casing is provided with oil duct I52, in casing, PTO power input shaft 1 is provided with the clutch operating mechanism 3 and clutch 4 that can slide on PTO power input shaft 1 from left to right, clutch 4 is connected with PTO power input shaft 1 by spline, the outboard end of clutch 4 is fixedly connected with clutch compressing disc 5 and input shaft gear 6, clutch compressing disc 5 and input shaft gear 6 are connected as a single entity, slide bushing 7 is had between input shaft gear 6 and PTO power input shaft 1, clutch compressing disc 5 rotates with clutch 4 with input shaft gear 6, input shaft gear 6 is provided with oil duct II53, jack shaft 8 is installed with countershaft-gear I9, major diameter middle shaft helical teeth wheel II11 and minor diameter middle shaft helical teeth wheel III21 by spline, and countershaft-gear I9 engages with input shaft gear 6, PTO pto=power take-off 13 is provided with the output shaft gear 56 be connected with PTO pto=power take-off 13, and be arranged on can taking turns II11 and middle shaft helical teeth with middle shaft helical teeth respectively and taking turns the little duplicate gear I16 and large duplicate gear II19 that III21 is meshed of output shaft gear 56 left and right sides, and the inner spline housing 17 to engage with output shaft gear 56, power shift gear 18 engages with inner spline housing 17 external tooth.Little duplicate gear I16, be greatly respectively equipped with needle bearing 15. change gear 18 between duplicate gear II19 with PTO pto=power take-off 13 and drive it to engage with large duplicate gear II19 or little duplicate gear I16 by the reverse shift fork 40 be arranged on declutch shift shaft 47, realize the conversion of low high speed double speed.Be provided with spacer I14 between little duplicate gear I16 and PTO Gearbox 32, between large duplicate gear II19 and PTO Gearbox 32, be provided with spacer II20.PTO pto=power take-off 13 is provided with initiatively duplex chain wheel 54 in the one end of stretching out casing, the other end is provided with spline shaft joint 49, can be connected realize rear Power output by spline shaft joint 49 and active duplex chain wheel 54 with other agricultural equipments.
The top of described PTO power input shaft 1 is provided with the clutch fork assembly 26 that can promote clutch operating mechanism 3, the both sides of clutch fork assembly 26 connect back shaft I28 and back shaft II30 respectively, back shaft I28 and back shaft II30 is arranged on the both sides, front and back of casing respectively, two back shaft one end in casing are located by expanding ring I29 respectively and are prevented from moving forward and backward, each back shaft is sealed by two O RunddichtringO I31 respectively, prevent hydraulic fluid leak, it is outer and be fixedly connected with clutch driving lever 27 that one of them back shaft stretches out casing.
Described gearshift mechanism 33 is arranged on the front side of PTO Gearbox 32, it comprises the arm of force 34, arm of force back shaft 37, driving lever 44, gear shift fork 40, adjustment bolt 42, adjusting nut 43, Compress Spring 45, declutch shift shaft 47, steel ball 48, declutch shift shaft 47 two ends are sleeved on PTO Gearbox 32, the two ends of declutch shift shaft 47 are respectively provided with O RunddichtringO III46 and seal, and wherein one end is provided with pressing plate 55 and fixes spacing; Arm of force back shaft 37 is positioned on casing by expanding ring II36, and sealed by two O RunddichtringO II35, arm of force back shaft 37 is fixedly connected with the arm of force 34 on the one end of stretching out casing, driving lever 44 is installed in one end in casing, the other end of driving lever 44 is shelved in the U-type groove of reverse shift fork 40, reverse shift fork 40 to be slidably installed on declutch shift shaft 47 and can to clamp change gear 18, move left and right by stirring reverse shift fork 40, power shift gear 18 is engaged with little duplicate gear 16 and large duplicate gear 19 respectively.
The middle part of described declutch shift shaft 47 is provided with the groove of three semicircles, reverse shift fork 40 is provided with the passage stretching into groove, the steel ball 48 that can fall into groove and the Compress Spring 45 heading on steel ball are installed on that channel, the outboard end of Compress Spring 45 is provided with adjustment bolt 42 and adjusting nut 43, for the elasticity regulating Compress Spring 45.
The utility model is when shift operates, by selector device in operator cabin control gearshift mechanism 33 the arm of force 34 swing time, driving lever 44 is made to drive reverse shift fork 40 to move left and right, when reverse shift fork 40 engages toward power shift gear 18 when moving right with little duplicate gear I16, steel ball 48 also moves toward the right, the right groove falling into declutch shift shaft 47 is located, makes PTO pto=power take-off 13 realize speedy carding process.When reverse shift fork 40 engages toward power shift gear 18 when moving left with large duplicate gear II19, steel ball 48 also moves toward the left side, the left side groove falling into declutch shift shaft 47 is located, makes PTO pto=power take-off 13 realize low speed output.When making power shift gear 18 in neutral position, when the intermediate groove that steel ball 48 falls into declutch shift shaft 47 is located, PTO pto=power take-off does not have Power output.Thus realize third gear conversion, two gear power speed changings export, and after reverse shift fork 40 moves into place, and make steel ball 48 fall into corresponding groove on declutch shift shaft 47 stick declutch shift shaft 47 and make it not move by Compress Spring 45, thus complete gear shift, make power realize steadily exporting.
The utility model is provided with clutch adjustment window cover 50 at the top of PTO Gearbox 32, clutch adjustment window cover 50 is provided with bleeder screw 51.After having assembled, clutch 4 adjustment clutch can be adjusted window cover remove after carry out.When the air pressure produced in PTO Gearbox is excessive, gas can be unloaded by bleeder screw 51, make the external and internal pressure of casing reach balance.
The utility model arranges oil duct I52 at the right-hand member of PTO power input shaft 1, makes external dedicated hydraulic oil enter in PTO dynamic retarding casing by oil duct I52, realizes the main driven friction of lubrication clutch 4.Described input shaft gear 6 arranges oil duct II53, specific hydraulic fluid is entered by oil duct II53 and realizes lubricating to slide bushing 7.The bottom of PTO Gearbox 32 is provided with oil return apparatus 41, and hydraulic oil gets back to the hydraulic oil container of tractor by oil return apparatus 41.
The utility model attainable power transmission route is as follows:
Spline belt pulley shaft joint 25 is connected with diesel engine output terminal by adpting flange 24 by the power of PTO power input shaft, and output power to roller chain shaft joint 23 and PTO power input shaft 1, clutch 3 is connected with PTO power input shaft 1 by spline.Clutch driving lever 27 on clutch shifter assembly 26 controls it by the steering force of the gearshift mechanism that links and swings, and drive clutch operating mechanism 3 to promote clutch 4, make the active friction plate on clutch 3 and driven friction under the effect of thrust, be in engagement or unclamp disengaged position.Being applied on clutch operating mechanism 3 when there being steering force makes it toward when moving right, make along with PTO power input shaft 1 rotationally the main driven friction of clutch 4 be in compression fit-state, and driving clutch compressing disc 5, the input shaft driving gear 6 be fixedly connected with clutch compressing disc 5 realizes rotating with PTO power input shaft 1 simultaneously.Make it toward when moving right when steering force is not applied on clutch operating mechanism 3, when the main driven friction of clutch 4 is in and unclamps disengaged position, do not drive clutch compressing disc 5, input shaft driving gear 6 can not realize rotating with PTO power input shaft 1 simultaneously, does not have Power output.When input shaft driving gear 6 rotates, drive the countershaft-gear I9 that is engaged with, with the major diameter middle shaft helical teeth that jack shaft 8 is fixed together take turns II 11 and minor diameter middle shaft helical teeth take turns III21 also together with rotate.By gearshift mechanism 33, reverse shift fork 40 is moved left and right on declutch shift shaft 47, and make the steel ball 48 in declutch shift shaft 47 groove oppress Compress Spring 45 to move up and down, make steel ball 45 fall into another corresponding groove of declutch shift shaft 47 and stick declutch shift shaft 47 and make it not move.When reverse shift fork 40 engages toward power shift gear 18 internal tooth when moving right with little duplicate gear I16, steel ball 48 also moves toward the right, the right groove falling into declutch shift shaft 47 is located, makes PTO pto=power take-off 13 realize speedy carding process.When reverse shift fork 40 engages toward power shift gear 18 internal tooth when moving left with large duplicate gear II19, steel ball 48 also moves toward the left side, the left side groove falling into declutch shift shaft 47 is located, makes PTO pto=power take-off 13 realize low speed output.When making power shift gear 18 in neutral position, when the intermediate groove that steel ball 48 falls into declutch shift shaft 47 is located, PTO pto=power take-off does not have Power output.Realize third gear conversion, two gear power speed changings steadily export.Power is reached PTO pto=power take-off 13, its one end realizes the output of rear power by spline shaft joint 49, and the other end realizes front Power output by active duplex chain wheel 54.
Below the feature that the utility model product has:
1. the utility model gearbox structure is simple, realizes transforming gear reposefully, reach double speed and steadily export by clutch and interlock gearshift mechanism.Change gear stirred by reverse shift fork, and when being linked into high gear, output shaft obtains 1000 revs/min of operating rates; When being linked into low speed gear, output shaft obtains 540 revs/min of operating rates; When change gear is in room, output shaft does not work.Double speed exports, and meets the initialization speed requirement of different agricultural machinery and implement, reduces the load shock of motor to tractor and PTO speed reducer, improves PTO speed reducer functional reliability and operating life.
2. the utility model speed reducer can realize front and back Power output.
3. the utility model is at the spline belt pulley shaft joint 25 of reduction box input shaft 1 front-end configuration, can provide good overload protection for reducing gear, and structure is simple, easy to process, is convenient to maintenance.
4. the utility model casing reduction box input shaft 1 on be configured with wet clutch, when clutch cuts off or connect power, power is engaged more steady, reduce the load shock to PTO speed reducer, improve PTO speed reducer functional reliability and operating life.
5. the little duplicate gear I16 of the utility model tractor facility dynamic retarding case, major diameter middle shaft helical teeth wheel I11, large duplicate gear II19 and minor diameter middle shaft helical teeth wheel II21 all adopt helical teeth manufacture, make the shifted operation of speed reducer more steady, ensure that velocity ratio is constant.

Claims (9)

1. a Novel tractor facility dynamic retarding case, comprise PTO Gearbox (32) and be arranged on the PTO power input shaft (1) on PTO Gearbox (32), jack shaft (8), PTO pto=power take-off (13), declutch shift shaft (47), gearshift mechanism (33), it is characterized in that, PTO power input shaft (1) in described casing is provided with clutch operating mechanism (3) and clutch (4), clutch (4) can be engaged with PTO power input shaft (1) by clutch operating mechanism (3), the outboard end of clutch (4) is fixedly connected with clutch compressing disc (5) and input shaft gear (6), clutch compressing disc (5) and input shaft gear (6) are connected as a single entity, slide bushing (7) is had between input shaft gear (6) and PTO power input shaft (1), described jack shaft (8) is installed with countershaft-gear I (9), major diameter middle shaft helical teeth wheel II (11) and minor diameter middle shaft helical teeth wheel III (21), countershaft-gear I (9) engages with input shaft gear (6), PTO pto=power take-off (13) is provided with the output shaft gear (56) be connected with PTO pto=power take-off, and be arranged on the little duplicate gear I (16) of output shaft gear (56) left and right sides, large duplicate gear II (19), little duplicate gear I (16), be respectively equipped with needle bearing (15) between duplicate gear II (19) and PTO pto=power take-off (13) greatly, change gear (18) is connected with output shaft gear (56) by inner spline housing (17), little duplicate gear I (16) and major diameter middle shaft helical teeth take turns that II (11) is meshed, large duplicate gear II (19) takes turns III (21) with minor diameter middle shaft helical teeth and is meshed, and change gear (18) drives it to engage with large duplicate gear II (19) or little duplicate gear I (16) by the reverse shift fork (40) be arranged on declutch shift shaft (47), PTO pto=power take-off (13) is provided with initiatively duplex chain wheel (54) in the one end of stretching out casing, the other end is provided with spline shaft joint (49), can be connected realize rear Power output by spline shaft joint (49) and active duplex chain wheel (54) with other agricultural equipments.
2. Novel tractor facility dynamic retarding case according to claim 1, it is characterized in that, the top of described PTO power input shaft (1) is provided with the clutch fork assembly (26) that can promote clutch operating mechanism (3), the both sides of clutch fork assembly (26) connect back shaft I (28) and back shaft II (30) respectively, back shaft I (28) and back shaft II (30) is arranged on the both sides, front and back of casing respectively, two back shaft one end in casing are located by expanding ring I (29) respectively and are prevented from moving forward and backward, each back shaft is sealed by two O RunddichtringO I (31) respectively, prevent hydraulic fluid leak, it is outer and be fixedly connected with clutch driving lever (27) that one of them back shaft stretches out casing.
3. Novel tractor facility dynamic retarding case according to claim 1, it is characterized in that, described gearshift mechanism (33) is arranged on the front side of PTO Gearbox (32), it comprises the arm of force (34), arm of force back shaft (37), driving lever (44), gear shift fork (40), adjustment bolt (42), adjusting nut (43), Compress Spring (45), declutch shift shaft (47), steel ball (48), declutch shift shaft (47) two ends are sleeved on PTO Gearbox (32), the two ends of declutch shift shaft (47) are respectively provided with O RunddichtringO III (46) sealing, wherein to be provided with pressing plate (55) fixing spacing in one end, arm of force back shaft (37) is positioned on casing by expanding ring II (36), and sealed by two O RunddichtringO II (35), arm of force back shaft (37) is fixedly connected with the arm of force (34) on the one end of stretching out casing, driving lever (44) is installed in one end in casing, the other end of driving lever (44) is shelved in the U-type groove of reverse shift fork (40), reverse shift fork (40) is slidably installed upper and can clamp change gear (18) at declutch shift shaft (47), realizes stirring change gear (18) and moves left and right.
4. Novel tractor facility dynamic retarding case according to claim 3, it is characterized in that, the middle part of described declutch shift shaft (47) is provided with the groove of three semicircles, reverse shift fork (40) is provided with the passage stretching into groove, the steel ball (48) that can fall into groove and the Compress Spring (45) heading on steel ball are installed on that channel, the outboard end of Compress Spring (45) is provided with adjustment bolt (42) and adjusting nut (43), for the elasticity regulating Compress Spring (45).
5. Novel tractor facility dynamic retarding case according to claim 1, it is characterized in that, the top of described PTO Gearbox (32) is provided with clutch adjustment window cover (50), and clutch adjustment window cover (50) is provided with bleeder screw (51); The bottom of PTO Gearbox (32) is provided with oil return apparatus (41).
6. Novel tractor facility dynamic retarding case according to claim 1, it is characterized in that, described PTO Gearbox (32) is fixed in tractor Rear frame (38) by connecting bolt (39).
7. Novel tractor facility dynamic retarding case according to claim 1, it is characterized in that, described PTO power input shaft (1) stretches out the front end of casing by installing adpting flange (24), spline belt pulley shaft joint (25), roller chain shaft joint (23) inside lateral successively, and the other end is provided with oil duct I (52); Be provided with slide bushing (7) between input shaft gear (6) and PTO power input shaft (1), input shaft gear (6) be provided with oil duct II (53).
8. Novel tractor facility dynamic retarding case according to claim 1, it is characterized in that, be provided with spacer I (14) between described little duplicate gear I (16) and PTO Gearbox (32), between large duplicate gear II (19) and PTO Gearbox (32), be provided with spacer II (20).
9. Novel tractor facility dynamic retarding case according to claim 1, it is characterized in that, the profile of tooth that described little duplicate gear I (16), major diameter middle shaft helical teeth wheel I (11), large duplicate gear II (19) and minor diameter middle shaft helical teeth take turns II (21) is helical teeth.
CN201520179318.0U 2015-03-27 2015-03-27 A kind of Novel tractor facility dynamic retarding case Active CN204533388U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104896032A (en) * 2015-03-27 2015-09-09 广西澜光科技有限公司 A novel tractor implement power reduction gearbox

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104896032A (en) * 2015-03-27 2015-09-09 广西澜光科技有限公司 A novel tractor implement power reduction gearbox

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