CN111316779B - Tractor position adjusting lifter capable of adjusting descending speed - Google Patents

Tractor position adjusting lifter capable of adjusting descending speed Download PDF

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Publication number
CN111316779B
CN111316779B CN202010181664.8A CN202010181664A CN111316779B CN 111316779 B CN111316779 B CN 111316779B CN 202010181664 A CN202010181664 A CN 202010181664A CN 111316779 B CN111316779 B CN 111316779B
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China
Prior art keywords
rotating shaft
adjusting
tractor
pivot
gear
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CN202010181664.8A
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Chinese (zh)
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CN111316779A (en
Inventor
李松燕
王兆华
李春瑜
王松浩
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Shandong Hongyu Agricultural Machinery Co ltd
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Shandong Hongyu Agricultural Machinery Co ltd
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Priority to CN202010181664.8A priority Critical patent/CN111316779B/en
Publication of CN111316779A publication Critical patent/CN111316779A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B71/00—Construction or arrangement of setting or adjusting mechanisms, of implement or tool drive or of power take-off; Means for protecting parts against dust, or the like; Adapting machine elements to or for agricultural purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F13/00—Common constructional features or accessories
    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H1/222—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Lifting Devices For Agricultural Implements (AREA)

Abstract

The utility model provides a can adjust pull-up mechanism is adjusted to decline speed, includes raiser main part and bottom plate, the one end of the first pivot of decline speed control valve fixed connection of raiser main part, the first bevel gear of the other end fixed mounting of first pivot, the both sides of first bevel gear are equipped with the second pivot respectively, the one end of second pivot all is equipped with the gear, the recess is all seted up to the opposite face of two gears, the one end of second pivot all is located the recess that corresponds and rather than the end bearing is connected. The invention does not need a user to bend down to rotate a hand wheel to adjust the descending speed adjusting valve, the pedal is arranged near the driving position, the user can adjust the descending speed when sitting at the driving position, the comfort level is greatly improved, the arrangement mode can be adjusted in the advancing process of the tractor, the user can use the eye corner residual light to find the position of the pedal and can press the pedal by hands or feet, the influence on the advancing of the tractor is little, and the operation safety is more favorable.

Description

Tractor position adjusting lifter capable of adjusting descending speed
Technical Field
The invention belongs to the field of tractor lifters, and particularly relates to a tractor position adjusting lifter capable of adjusting descending speed.
Background
In order to lift or lower the farm tool behind the tractor, a lifter is provided behind the tractor, and the lowering speed of the farm tool needs to be controlled by a lowering speed adjusting device. The invention with publication number CN207460763U discloses a descending speed adjusting device, a tractor lifter and a tractor. It is operated with convenience of customers in with the speed governing hand wheel immigration driver's cabin, but it needs a hand to visit floor direction and rotate the hand wheel when adjusting, and this kind of mode is only applicable to vehicle quiescent condition, because when being in driving condition, the first half of user can be drawn in above-mentioned action, very easily leads to the direction of travel to change and even takes place the incident, and in addition, the mode of manual regulation lacks the reference, mostly relies on user's experience, unable accurate adjustment.
Disclosure of Invention
The invention provides a tractor position adjusting lifter capable of adjusting descending speed, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme:
a tractor position adjusting lifter capable of adjusting descending speed comprises a lifter main body and a bottom plate, wherein a descending speed adjusting valve of the lifter main body is fixedly connected with one end of a first rotating shaft, a first bevel gear is fixedly installed at the other end of the first rotating shaft, second rotating shafts are respectively arranged on two sides of the first bevel gear, gears are respectively arranged at one ends of the second rotating shafts, grooves are respectively formed in opposite surfaces of the two gears, one end of each second rotating shaft is positioned in the corresponding groove and is connected with an end face bearing in the corresponding groove, a second bevel gear is respectively arranged at the other end of each second rotating shaft and is meshed with the first bevel gear, a plurality of pawls which can be turned and folded are respectively arranged on inner rings of the grooves, a ratchet wheel is fixedly installed at the end part of each second rotating shaft, two pedals are installed on the top surface of the bottom plate through a hinge seat and a torsion spring, arc-shaped racks are respectively fixedly installed at movable ends of the pedals, two arc-shaped through grooves are formed in the top surface of the bottom plate, the arc-shaped racks respectively penetrate through the corresponding through grooves, the top surface of the bottom plate is fixedly installed on the top of the barrel body made of transparent materials, a third rotating shaft is arranged in the barrel body, scales are arranged on the top surface of the barrel body, a pointer is fixedly installed on the periphery of the top of the third rotating shaft, and the third rotating shaft is connected with the first rotating shaft through a transmission mechanism.
According to the tractor position adjusting lifter capable of adjusting the descending speed, the transmission mechanism comprises a large gear and a small gear, a shaft hole is formed in the top surface of the bottom plate, the third rotating shaft penetrates through the shaft hole and is connected with the third rotating shaft through a bearing, the large gear is fixedly installed at the bottom of the third rotating shaft, the small gear is fixedly installed at the other end of the first rotating shaft, and the large gear is meshed with the small gear.
According to the tractor position adjusting lifter capable of adjusting the descending speed, one end of each pawl is connected with the corresponding groove through the hinge seat and the torsion spring, the other end of each pawl is fixedly connected with one end of a wire rope, and the other end of the wire rope is fixedly connected with the inner ring of the corresponding groove.
According to the tractor position adjusting lifter capable of adjusting the descending speed, the top surface of the pedal is provided with the strip-shaped through groove, the strip-shaped through groove is internally provided with the foldable supporting rod, and the supporting rod and the strip-shaped through groove are connected through the locking piece.
According to the tractor position adjusting lifter capable of adjusting the descending speed, the locking piece is a bolt, one side of the pedal is provided with a screw hole communicated with the inside of the strip-shaped through groove, the bolt is installed in the screw hole through threads, the movable end of the supporting rod is provided with a blind hole, and one end of the bolt can be located in the blind hole.
The tractor position adjusting lifter capable of adjusting the descending speed is characterized in that the other end of the bolt is provided with an anti-skid thread.
A tractor position adjustment hoist as described above capable of adjusting a lowering speed, said hoist body comprising a housing, an outer lift arm, an inner lift arm, a drive means and a lift shaft; the outer lifting arm is fixedly connected with the lifting shaft, and the inner lifting arm is fixedly connected with the lifting shaft; the driving device is arranged in a mounting cavity in the shell and is used for enabling the inner lifting arm to rotate around the axis of the lifting shaft; the shell is provided with a chassis oil filling port, and the chassis oil filling port is communicated with a lifting arm accommodating cavity in the shell and is used for enabling oil flowing from the chassis oil filling port to enter a rear axle shell body of the tractor; the bottom of the shell is provided with a connecting bottom plate which is used for being connected with a tractor chassis; the upper surface of the connecting bottom plate is provided with a plurality of steps with different heights.
The invention has the advantages that: the bottom plate can be a tractor floor with a cab or a tractor rear wheel guard plate without the cab, a user can step on the floor by feet when the pedals are arranged on the floor, and the user needs to press the rear wheel guard plate by hands when the pedals are arranged on the floor, the two pedals respectively drive the first rotating shaft to rotate, and the two pedals respectively drive the first rotating shaft to rotate in opposite directions, so that the effect of adjusting the descending speed of the lifter main body is achieved, as shown in the figure, in a natural state, the arc-shaped rack is not meshed with the gear, the arc-shaped rack is positioned on the right side of the gear, when the user enables the arc-shaped rack in front to be meshed with the gear, the gear in front rotates clockwise, the pawl is meshed with the ratchet to drive the second rotating shaft in front to rotate clockwise, and similarly, the second bevel gear in front rotates clockwise to drive the first bevel gear to rotate clockwise, and at the moment, the second bevel gear in rear, the second rotating shaft and the gear rotate anticlockwise, but because the arc rack in rear does not mesh with the gear, so can not drive the arc rack and turn over and roll over, first bevel gear passes through first pivot promptly adjustable descent speed governing valve, first pivot passes through the pinion, the gear wheel drives the rotation of third pivot, the pointer rotates the directional scale that corresponds along with the third pivot, the scale is the descent speed of lifting mechanism main part, can provide clear and definite deceleration information for the user, no longer rely on experience and observation to judge whether the deceleration satisfies the demand, and after the user loosens the footboard, the gear anticlockwise rotation, the pawl can turn over and roll over, thereby can't drive the ratchet and rotate. The invention does not need the user to bend down to rotate the hand wheel to adjust the descending speed adjusting valve, the pedal is arranged near the driving position, the user can adjust the descending speed by sitting at the driving position, the comfort level is greatly improved, the arrangement mode can be adjusted in the advancing process of the tractor, the user can use the eye corner residual light to find the position of the pedal and can press the pedal by hands or feet, the influence on the advancing of the tractor is little, and the operation safety is more facilitated; the transmission mechanism is arranged to drive the pointer to rotate so as to provide reference for a user, and the adjustment of the descending speed is more accurate; each time one of the pedals is fully pressed down, the first rotating shaft is rotated by the same angle, and the user can also keep the descending speed within a certain interval by calculating the number of the steps.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of the view from the direction A of FIG. 1; FIG. 3 is an enlarged view of the view of FIG. 2 taken in the direction B; FIG. 4 is an enlarged view of the view of FIG. 1 taken along line C; figure 5 is a schematic deployment view of the strut.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A tractor position adjusting lifter capable of adjusting descending speed comprises a lifter body 1 and a bottom plate 2, wherein a descending speed adjusting valve of the lifter body 1 is fixedly connected with one end of a first rotating shaft 3, the first rotating shaft 3 is vertically arranged, a universal joint can be additionally arranged between the descending speed adjusting valve and the first rotating shaft 3 to adapt to different shapes of tractor structures, the other end of the first rotating shaft 3 is fixedly provided with a first bevel gear 4, two sides of the first bevel gear 4 are respectively provided with a second rotating shaft 5, the second rotating shafts 5 are distributed on the front side and the rear side of the first bevel gear 4, the second rotating shafts 5 are respectively connected with the bottom surface of the bottom plate 2 through bearing seats, one end of each second rotating shaft 5 is provided with a gear 6, the opposite surfaces of the two gears 6 are respectively provided with a groove 7, one end of each second rotating shaft 5 is positioned in the corresponding groove 7 and is connected with an inner end surface bearing thereof, the other end of each second rotating shaft 5 is provided with a second bevel gear 8, the second bevel gear 8 is connected with the second rotating shaft 5 in a key mode, the second bevel gear 8 is meshed with the first bevel gear 4, a plurality of foldable pawls 9 are arranged on inner rings of the grooves 7 respectively, ratchet wheels 10 are fixedly installed at the end portions, located in the grooves 7, of the second rotating shaft 5, the pawl 9 can be meshed with the corresponding ratchet wheels 10 respectively, the two ratchet wheels 10 and the corresponding pawl 9 face the same direction, the movable ends of the pawl 9 face the clockwise direction, two pedals 11 are installed on the top surface of the bottom plate 2 through hinge seats and torsion springs, one end of each pedal 11 tilts and faces the direction of the lifter main body 1, each pedal 11 is enabled to have the trend of being folded upwards through the torsion springs, arc-shaped racks 12 are fixedly installed at the movable ends of the pedals 11, two arc-shaped through grooves 13 are formed in the top surface of the bottom plate 2, the arc-shaped racks 12 penetrate through the corresponding through grooves 13 respectively, and when the pedals 11 take hinge joints as centers to turn downwards, the arc-shaped racks 12 are meshed with the corresponding gears 6, the top surface fixed mounting top of bottom plate 2 is transparent staving 14, and staving 14 back-off is equipped with third pivot 15 in the staving 14 on bottom plate 2, and the top surface of staving 14 is equipped with the scale, and the top periphery fixed mounting pointer 16 of third pivot 15 is connected through drive mechanism between third pivot 15 and the first pivot 3. The bottom plate 2 can be a tractor floor with a cab or a tractor rear wheel guard plate without the cab, the pedals 11 are arranged on the floor, a user can step on the floor by feet, and the rear wheel guard plate can be arranged on the floor by the user by pressing with hands, the two pedals 11 are arranged to respectively drive the first rotating shaft 3 to rotate, the two pedals 11 respectively drive the first rotating shaft 3 to rotate in opposite directions, so that the effect of adjusting the descending speed of the lifter main body 1 is achieved, as shown in figure 1, in a natural state, the arc-shaped rack 12 is not meshed with the gear 6, the arc-shaped rack 12 is positioned on the right side of the gear 6, when the arc-shaped rack 12 in front is meshed with the gear 6 by the user, the gear 6 in front rotates clockwise, the pawl 9 is meshed with the ratchet 10 to drive the second rotating shaft 5 in front to rotate clockwise, and similarly, the second bevel gear 8 in front rotates clockwise to drive the first bevel gear 4 to rotate clockwise (seen from top to bottom), at this time, the rear second bevel gear 8, the rear second rotating shaft 5 and the rear gear 6 all rotate anticlockwise, but the rear arc-shaped rack 12 is not meshed with the gear 6, so that the arc-shaped rack 12 cannot be driven to turn over, the first bevel gear 4 can adjust the descending speed adjusting valve through the first rotating shaft 3, the first rotating shaft 3 drives the third rotating shaft 15 to rotate through the pinion 18 and the bull gear 17, the pointer 16 rotates along with the third rotating shaft 15 and points to the corresponding scale, the scale is the descending speed of the lifter main body 1, so that clear descending speed information can be provided for a user, whether the descending speed meets requirements is judged no longer through experience and observation, and after the user loosens the pedal 11, the gear 6 rotates anticlockwise, the pawl 9 can turn over, and the ratchet 10 cannot be driven to rotate. According to the invention, a user does not need to bend down to rotate a hand wheel to adjust the descending speed adjusting valve, the pedal 11 is arranged near a driving position, the user can adjust the descending speed by sitting at the driving position, the comfort level is greatly improved, the arrangement mode can be adjusted in the advancing process of the tractor, the user can find the position of the pedal 11 by using the eye corner residual light and can press the pedal by hands or feet, the influence on the advancing of the tractor is very small, and the operation safety is more facilitated; the transmission mechanism is arranged to drive the pointer 16 to rotate so as to provide reference for a user, and the adjustment of the descending speed is more accurate; each time one of the pedals 11 is fully depressed, the first rotating shaft 3 is rotated by the same angle, and the user can also keep the descending speed within a certain interval by calculating the number of the depressions.
Specifically, as shown in fig. 1 or 2, the transmission mechanism according to this embodiment includes a large gear 17 and a small gear 18, a shaft hole 19 is formed in the top surface of the bottom plate 2, the bottom surface of the shaft hole 19 is communicated with the outside, the third rotating shaft 15 penetrates through the shaft hole 19 and is connected with the shaft, the large gear 17 is fixedly installed at the bottom of the third rotating shaft 15, the small gear 18 is fixedly installed at the other end of the first rotating shaft 3, and the large gear 17 is engaged with the small gear 18. When this structure makes first pivot 3 rotate, third pivot 15 also rotates thereupon, and has reduced the drive ratio through the cooperation of gear wheel 17 and pinion 18, and first pivot 3 rotates several weeks promptly, and third pivot 15 just can rotate a week, is favorable to the more accurate directional corresponding scale of pointer 16.
Specifically, as shown in fig. 3, one end of the pawl 9 described in this embodiment is connected to the corresponding groove 7 through the hinge seat and the torsion spring, the other end of the pawl 9 is fixedly connected to one end of the cord 20, and the other end of the cord 20 is fixedly connected to the inner ring of the corresponding groove 7. The torsion spring enables the pawl 9 to have a tendency of turning towards the inside of the groove 7, the rope 20 can prevent the pawl 9 from turning too much, and therefore the working reliability is further improved, and the rope 20 is preferably a steel wire rope, is wear-resistant and has long service life.
Further, as shown in fig. 4 or 5, the top surface of footboard 11 set up the strip and pass through groove 21, the strip passes through groove 21 and follows the length direction of footboard 11, the strip is equipped with the branch 22 that can turn over and roll over in passing through groove 21, the one end both sides of branch 22 are passed through the articulated shaft connection strip respectively and pass through groove 21, set up the torsional spring on the articulated shaft, the torsional spring makes branch 22 turn over and roll over down, branch 22 and strip pass through between the groove 21 and be connected through the locking piece. The user opens the locking piece when the falling speed that need not to adjust the lifting mechanism, then turns over branch 22 and turns over a year, and the expansion end of branch 22 can contact with the top surface of bottom plate 2 to form the support to footboard 11, the user can't step on footboard 11 again, can play the technological effect of preventing the mistake and touching.
Furthermore, as shown in fig. 4, the locking member in this embodiment is a bolt 24, one side of the pedal 11 is provided with a screw hole 23 communicating with the inside of the strip-shaped through groove 21, the bolt 24 is installed in the screw hole 23 through a thread, the movable end of the support rod 22 is provided with a blind hole 25, and one end of the bolt 24 can be located in the blind hole 25. The user can realize the effect of locking branch 22 through elasticity bolt 24, convenient operation, and the required cost of structure is also low.
Furthermore, the other end of the bolt 24 according to this embodiment is provided with an anti-slip thread. This structure can increase the frictional force with the user's hand, prevents skidding when screwing up bolt 24.
Further, the lifter body 1 of the present embodiment includes a housing, an outer lifting arm, an inner lifting arm, a driving device, and a lifting shaft; the outer lifting arm is fixedly connected with the lifting shaft, and the inner lifting arm is fixedly connected with the lifting shaft; the driving device is arranged in a mounting cavity in the shell and is used for enabling the inner lifting arm to rotate around the axis of the lifting shaft; the shell is provided with a chassis oil filling port, and the chassis oil filling port is communicated with a lifting arm accommodating cavity in the shell and is used for enabling oil flowing from the chassis oil filling port to enter a rear axle shell body of the tractor; the bottom of the shell is provided with a connecting bottom plate which is used for being connected with a tractor chassis; the upper surface of the connecting bottom plate is provided with a plurality of steps with different heights. This tractor lifting mechanism can reduce the interference to the driver's cabin floor, still is convenient for assemble and maintain to and be favorable to guaranteeing the stability of connecting, improved the reliability of controlling, reduced the fault rate.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (7)

1. A tractor position adjusting hoist capable of adjusting a lowering speed, comprising a hoist main body (1) and a floor (2), characterized in that: a descending speed regulating valve of the lifter main body (1) is fixedly connected with one end of a first rotating shaft (3), a first bevel gear (4) is fixedly installed at the other end of the first rotating shaft (3), second rotating shafts (5) are respectively arranged on two sides of the first bevel gear (4), gears (6) are respectively arranged at one end of each second rotating shaft (5), grooves (7) are respectively formed in opposite surfaces of the two gears (6), one end of each second rotating shaft (5) is positioned in the corresponding groove (7) and is connected with an inner end surface bearing of the corresponding groove, a second bevel gear (8) is respectively arranged at the other end of each second rotating shaft (5), the second bevel gears (8) are respectively meshed with the first bevel gears (4), a plurality of foldable pawls (9) are respectively arranged on inner rings of the grooves (7), a ratchet wheel (10) is fixedly installed at the end part of each second rotating shaft (5) positioned in the corresponding groove (7), two pedals (11) are installed on the top surface of the bottom plate (2) through a hinged seat and a torsion spring, the equal fixed mounting arc rack (12) of expansion end of footboard (11), two curved through grooves (13) are seted up to the top surface of bottom plate (2), pass in arc rack (12) pass through groove (13) from corresponding respectively, the top surface fixed mounting top of bottom plate (2) is staving (14) of transparent material, be equipped with third pivot (15) in staving (14), the top surface of staving (14) is equipped with the scale, top periphery fixed mounting pointer (16) of third pivot (15), be connected through drive mechanism between third pivot (15) and first pivot (3).
2. A tractor position adjustment hoist capable of adjusting the rate of descent according to claim 1, characterized by: the transmission mechanism comprises a large gear (17) and a small gear (18), a shaft hole (19) is formed in the top surface of the bottom plate (2), the third rotating shaft (15) penetrates through the shaft hole (19) and is connected with a bearing, the large gear (17) is fixedly installed at the bottom of the third rotating shaft (15), the small gear (18) is fixedly installed at the other end of the first rotating shaft (3), and the large gear (17) is meshed with the small gear (18).
3. A tractor position adjustment lift capable of adjusting the lowering speed according to claim 1 or 2, characterized in that: the one end of pawl (9) all through articulated seat and torsional spring connection recess (7) that correspond, the other end of pawl (9) all fixedly connected with the one end of cotton rope (20), the inner circle of the recess (7) that the other end all fixed connection of cotton rope (20) corresponds.
4. A tractor position adjustment lift capable of adjusting the lowering speed according to claim 1 or 2, characterized in that: the top surface of footboard (11) set up the strip and pass through groove (21), the strip is equipped with branch (22) that can turn over in passing through groove (21), branch (22) and strip pass through between groove (21) and be connected through the locking piece.
5. A tractor position adjustment hoist capable of adjusting the lowering speed according to claim 4, characterized in that: the locking piece is a bolt (24), one side of the pedal (11) is provided with a screw hole (23) communicated with the inside of the strip-shaped through groove (21), the bolt (24) is installed in the screw hole (23) through internal threads, the movable end of the supporting rod (22) is provided with a blind hole (25), and one end of the bolt (24) can be located in the blind hole (25).
6. A tractor position adjustment hoist capable of adjusting the rate of descent according to claim 5, characterized by: the other end of the bolt (24) is provided with anti-skid grains.
7. A tractor position adjustment lift capable of adjusting the lowering speed according to claim 1 or 2 or 5 or 6, characterized in that: the lifter main body (1) comprises a shell, an outer lifting arm, an inner lifting arm, a driving device and a lifting shaft; the outer lifting arm is fixedly connected with the lifting shaft, and the inner lifting arm is fixedly connected with the lifting shaft; the driving device is arranged in a mounting cavity in the shell and is used for enabling the inner lifting arm to rotate around the axis of the lifting shaft; the shell is provided with a chassis oil filling port, and the chassis oil filling port is communicated with a lifting arm accommodating cavity in the shell and is used for enabling oil flowing from the chassis oil filling port to enter a rear axle shell body of the tractor; the bottom of the shell is provided with a connecting bottom plate which is used for being connected with a tractor chassis; the upper surface of the connecting bottom plate is provided with a plurality of steps with different heights.
CN202010181664.8A 2020-03-16 2020-03-16 Tractor position adjusting lifter capable of adjusting descending speed Active CN111316779B (en)

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CN202010181664.8A CN111316779B (en) 2020-03-16 2020-03-16 Tractor position adjusting lifter capable of adjusting descending speed

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Application Number Priority Date Filing Date Title
CN202010181664.8A CN111316779B (en) 2020-03-16 2020-03-16 Tractor position adjusting lifter capable of adjusting descending speed

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CN111316779B true CN111316779B (en) 2022-06-07

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Publication number Priority date Publication date Assignee Title
CN112332601A (en) * 2020-10-20 2021-02-05 赵泽碧 Transmission real-time control piece

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Publication number Priority date Publication date Assignee Title
FR1487001A (en) * 1965-07-19 1967-10-13
AT278391B (en) * 1968-02-19 1970-01-26 Philips Nv Device for a recording and / or reproducing device
CN2369899Y (en) * 1998-07-31 2000-03-22 王延玲 Lift machine for small four wheel tractor
CN107789132A (en) * 2017-11-13 2018-03-13 长沙宁湖机械设备有限公司 A kind of auxiliary with lifting device is stood up wheelchair
CN212154362U (en) * 2019-12-26 2020-12-15 庄志娥 Security fence for construction

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