CN115010044B - Improved generation high lift formula screw jack - Google Patents
Improved generation high lift formula screw jack Download PDFInfo
- Publication number
- CN115010044B CN115010044B CN202210474672.0A CN202210474672A CN115010044B CN 115010044 B CN115010044 B CN 115010044B CN 202210474672 A CN202210474672 A CN 202210474672A CN 115010044 B CN115010044 B CN 115010044B
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- Prior art keywords
- fixedly connected
- jack
- mounting
- fan
- transmission shaft
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- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims description 72
- 229920001875 Ebonite Polymers 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 10
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
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- 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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
- B66F7/14—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks screw operated
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- 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
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/16—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through bevel-wheel gearings
-
- 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
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/20—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through multiple or change-speed gearings
-
- 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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- 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
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- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention discloses an improved high-lift type screw jack in the technical field of screw jacks, which comprises a trolley, a mounting rail and a jack, wherein the mounting rail is fixedly arranged at the upper end of the trolley, the mounting rail is provided with a steering mechanism, the jack is fixedly arranged at the upper end of the steering mechanism, the upper end of the jack is fixedly connected with a supporting plate, and the steering mechanism can be kept parallel to a stress surface of a heavy object in the process of supporting the heavy object by the jack; the jack can directly work on the premise of the work of the inclined ground or the stressed surface of the inclined weight in the working process, the ground or the stressed surface is not required to be changed manually, the use difficulty of the jack is greatly reduced, and the application range of the jack is increased.
Description
Technical Field
The invention relates to the technical field of screw jacks, in particular to an improved high-lift screw jack.
Background
The jack is simple and practical lifting equipment, brings great convenience to life and work of people, and is widely applied to various fields.
The existing jack can not automatically adjust the parallelism between the supporting surface and the working surface in the use process, the inclination of the supporting surface and the working surface are required to be manually adjusted, the use scene of the jack is limited, and the error of the manual adjustment mode is overlarge, so that the jack can be subjected to radial force except the axial force for pushing the working surface in the use process, the extrusion force of a transmission part is increased in the jack opening process and the supporting process, the loss is increased, the transmission part of the jack is damaged, and the service life of the jack is influenced.
Based on the above, the present invention has devised an improved high lift type screw jack to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide an improved high-lift screw jack, which aims to solve the problems that in the prior art, the parallelism between a supporting surface and a working surface cannot be automatically regulated in the use process of the existing jack, the inclination of the supporting surface and the working surface needs to be manually regulated, the use scene of the jack is limited, the error of the manual regulation mode is overlarge, the jack can be subjected to radial force besides the axial force for pushing the working surface in the use process, the extrusion force of a transmission part is increased in the opening process and the supporting process of the jack, the loss is increased, the transmission part of the jack is damaged, and the service life of the jack is influenced.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an improved generation high lift formula screw jack, includes shallow, mounting rail and jack, mounting rail fixed mounting is in the shallow upper end, the mounting rail is provided with steering mechanism, the jack is fixed to be set up in steering mechanism upper end, jack upper end fixedly connected with backup pad, steering mechanism can keep parallelism with the atress face of heavy object at the in-process that the jack supported the heavy object.
As a further scheme of the invention, the lower end of the supporting plate is vertically and fixedly connected with a plurality of telescopic rods which are arranged in a circumferential array with the jack as an axle center, and the lower ends of the telescopic rods are fixedly arranged on the steering mechanism.
As a further scheme of the invention, a mounting groove is formed in the center of the lower end of the supporting plate, a first shaft sleeve is arranged in the mounting groove, a plurality of first springs which are in a circumferential array are fixedly connected to the outer wall of the first shaft sleeve, the first springs are fixedly connected with the inner wall of the mounting groove, and the upper end of the jack is vertically and slidably clamped with the inner wall of the first shaft sleeve.
As a further scheme of the invention, the mounting rail comprises a first rail which is arranged in a front-back symmetrical way, the first rail is fixedly connected with the trolley, the upper end of the first rail is fixedly connected with a supporting rod, and the upper end of the supporting rod is fixedly connected with a second rail; the steering mechanism comprises a first mounting plate, the first mounting plate upper end is connected with the jack lower extreme rotation, first mounting plate upper end and telescopic link lower extreme fixed connection, both sides are equal fixedly connected with slide bar around the first mounting plate left side, slide bar and second track sliding connection, the equal fixedly connected with connecting block of end around the first mounting plate right side, fixedly connected with pivot between the connecting block, the pivot rotates and is connected with the second mounting plate, the threaded rod has vertically been cup jointed to the second mounting plate, the threaded rod lower extreme rotates and is connected with the third mounting plate, the equal fixedly connected with slider of third mounting plate front and back end, slider and first track sliding connection are provided with actuating mechanism on the first mounting plate, actuating mechanism is used for controlling jack extension and the relative threaded rod upward movement of second mounting plate.
As a further scheme of the invention, the driving mechanism comprises a first gear, the first gear is rotationally connected with the upper end of a second mounting plate, the inner wall of the first gear is in threaded connection with a threaded rod, a tooth is arranged at the bottom of the jack, a second gear is arranged between the tooth and the first gear, the upper end of the second gear is fixedly connected with a first transmission shaft, the upper end of the first transmission shaft is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixedly connected with a second transmission shaft, the second transmission shaft is rotationally connected with a second sleeve, the upper end and the lower end of the second sleeve are rotationally connected with a mounting shaft, the mounting shaft is rotationally connected with a mounting frame, the mounting frame is fixedly connected with the first mounting plate, the second transmission shaft is fixedly connected with a rocker, the second transmission shaft is provided with a switching mechanism, the engagement state between the first gear and the tooth can be changed according to the fitting state of a supporting plate and a supporting surface, the first transmission shaft and the second transmission shaft are rotationally connected with a connecting sleeve, and the connecting sleeve is used for keeping the engagement state of the first bevel gear and the second bevel gear.
As a further scheme of the invention, the switching mechanism comprises a first fan-shaped installation shell, the left side and the right side of the lower end of the inner wall of the first fan-shaped installation shell are respectively and fixedly connected with an elastic telescopic rod in a slotting mode, the upper ends of the elastic telescopic rods are respectively and fixedly connected with an arc-shaped clamping block, one side, close to the center position of the first fan-shaped installation shell, of each arc-shaped clamping block is provided with a chamfer, the middle position of the upper end of the inner wall of the first fan-shaped installation shell is provided with a first transmission tooth, the outer wall of each second transmission shaft is fixedly connected with a bevel gear, the bevel gear can be meshed with the first transmission tooth, the middle position of the lower end of the inner wall of each second fan-shaped installation shell is fixedly connected with a second transmission tooth, the end of each second transmission shaft is fixedly connected with a second spring, the second springs are fixedly connected with a second sleeve, the first fan-shaped installation shell and the second fan-shaped installation shell are respectively and fixedly connected with the first installation plate, the first fan-shaped installation shell is provided with a clamping mechanism, and the clamping mechanism is used for being aligned with a support plate at the back position of the second transmission shaft.
As a further aspect of the invention, the tread of the wheel of the cart is made of hard rubber.
As a further scheme of the invention, the crank of the rocker is rotatably connected with the rocker.
Compared with the prior art, the invention has the beneficial effects that:
1. the jack can be parallel to the stress surface of the heavy object in the process of supporting the heavy object by the steering mechanism, so that the jack and the stress surface of the heavy object are kept in a vertical state, the jack is further only subjected to the action of axial force in the working process, the jack is protected by the steering mechanism, and meanwhile, the jack can work under the premise of directly inclining the ground or the stress surface of the heavy object in the working process by the steering mechanism, the ground or the stress surface is not required to be changed manually, the use difficulty of the jack is greatly reduced, and the application range of the jack is increased.
2. Through the setting of telescopic link, make the radial force that the jack received in the course of the work, bear by the telescopic link to reduce the wearing and tearing of driving medium in the jack, further improved the life of jack.
3. Through the setting of first axle sleeve, make jack upper end can slide in the mounting groove, further make the transverse force between jack and the backup pad reduce, make the lateral force that the backup pad received can be supported by the telescopic link basically, further guarantee that the jack can not receive the interference of radial force in the course of the work to reduce the wearing and tearing of driving medium in the jack, further improved the life of jack.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
FIG. 3 is a schematic elevation view in cross-section of a rail of the general structure of the present invention;
FIG. 4 is a schematic view of the overall structure of the present invention in a top-down section;
FIG. 5 is a schematic rear view of FIG. 4;
FIG. 6 is an enlarged schematic view of FIG. 5 at B;
FIG. 7 is a schematic view of the first fan-shaped mounting shell and its internal components of FIG. 5 removed;
FIG. 8 is an enlarged schematic view of FIG. 7 at C;
FIG. 9 is a schematic elevation view in cross-section of a jack of the general construction of the present invention;
fig. 10 is an enlarged schematic view of fig. 9 at D.
In the drawings, the list of components represented by the various numbers is as follows:
the trolley 1, the jack 2, the support plate 3, the telescopic rod 4, the mounting groove 51, the first shaft sleeve 52, the first spring 53, the first rail 61, the support rod 62, the second rail 63, the first mounting plate 71, the slide rod 72, the connecting block 73, the rotating shaft 74, the second mounting plate 75, the threaded rod 76, the third mounting plate 77, the slide block 78, the first gear 81, the tooth 82, the second gear 83, the first transmission shaft 84, the first helical gear 85, the second helical gear 86, the second transmission shaft 87, the second shaft sleeve 88, the mounting shaft 89, the mounting frame 810, the rocker 811, the connecting sleeve 812, the first fan-shaped mounting shell 91, the elastic telescopic rod 92, the arc-shaped clamping block 93, the first transmission tooth 94, the bevel gear 95, the second fan-shaped mounting shell 96, the second transmission tooth 97, the stop 98, and the second spring 99.
Detailed Description
Referring to fig. 1-10, the present invention provides a technical solution: the utility model provides an improved generation high lift formula screw jack, includes shallow 1, mounting rail and jack 2, mounting rail fixed mounting is in shallow 1 upper end, the mounting rail is provided with steering mechanism, jack 2 is fixed to be set up in steering mechanism upper end, jack 2 upper end fixedly connected with backup pad 3, steering mechanism can keep parallelism with the atress face of heavy object at the in-process that jack 2 supported the heavy object.
The jack 2 and the stress surface of the heavy object can be kept parallel in the process of supporting the heavy object by the steering mechanism, so that the jack 2 and the stress surface of the heavy object are kept in a vertical state, the jack 2 is only subjected to the action of axial force in the working process, the jack 2 is protected, meanwhile, the jack 2 can directly work on the inclined ground or the inclined stress surface of the heavy object under the premise of working by the steering mechanism in the working process, the ground or the stress surface is not required to be changed manually, the use difficulty of the jack 2 is greatly reduced, and the application range of the jack 2 is increased.
As a further scheme of the invention, the lower end of the supporting plate 3 is vertically and fixedly connected with a plurality of telescopic rods 4 which are arranged in a circumferential array and take the jack 2 as an axle center, and the lower end of each telescopic rod 4 is fixedly arranged on the steering mechanism.
Through the setting of telescopic link 4, make jack 2 receive radial force in the course of the work, bear by telescopic link 4 to reduce the wearing and tearing of driving medium in the jack 2, further improved jack 2's life.
As a further scheme of the invention, a mounting groove 51 is formed in the center of the lower end of the supporting plate 3, a first shaft sleeve 52 is arranged in the mounting groove 51, a plurality of first springs 53 which are in a circumferential array are fixedly connected to the outer wall of the first shaft sleeve 52, the first springs 53 are fixedly connected with the inner wall of the mounting groove 51, and the upper end of the jack 2 is vertically and slidably clamped with the inner wall of the first shaft sleeve 52.
Through the setting of first axle sleeve 52, make jack 2 upper end can slide in mounting groove 51, further make the transverse force between jack 2 and the backup pad 3 reduce, make the transverse force that backup pad 3 received can be supported by telescopic link 4 basically, further guarantee jack 2 can not receive the interference of radial force in the course of the work to reduce the wearing and tearing of driving medium in the jack 2, further improved the life of jack 2.
As a further scheme of the invention, the mounting rail comprises a first rail 61 which is symmetrically arranged in front and back, the first rail 61 is fixedly connected with the cart 1, the upper end of the first rail 61 is fixedly connected with a supporting rod 62, and the upper end of the supporting rod 62 is fixedly connected with a second rail 63; the steering mechanism comprises a first mounting plate 71, the upper end of the first mounting plate 71 is rotationally connected with the lower end of a jack 2, the upper end of the first mounting plate 71 is fixedly connected with the lower end of a telescopic rod 4, sliding rods 72 are fixedly connected to the front side and the rear side of the left side of the first mounting plate 71, the sliding rods 72 are slidably connected with a second track 63, connecting blocks 73 are fixedly connected to the front end and the rear side of the right side of the first mounting plate 71, a rotating shaft 74 is fixedly connected between the connecting blocks 73, a second mounting plate 75 is rotationally connected to the rotating shaft 74, a threaded rod 76 is vertically sleeved on the second mounting plate 75, a third mounting plate 77 is rotationally connected to the lower end of the threaded rod 76, sliding blocks 78 are fixedly connected to the front end and the rear end of the third mounting plate 77, the sliding blocks 78 are slidably connected with the first track 61, and a driving mechanism is arranged on the first mounting plate 71 and used for controlling the jack 2 to stretch and the second mounting plate 75 to move upwards relative to the threaded rod 76.
As a further scheme of the invention, the driving mechanism comprises a first gear 81, the first gear 81 is rotationally connected with the upper end of a second mounting plate 75, the inner wall of the first gear 81 is in threaded connection with a threaded rod 76, the bottom of the jack 2 is provided with a tooth 82, the tooth 82 is fixedly connected with the first gear 81, the upper end of the second gear 83 is fixedly connected with a first transmission shaft 84, the upper end of the first transmission shaft 84 is fixedly connected with a first bevel gear 85, the first bevel gear 85 is meshed with a second bevel gear 86, the second bevel gear 86 is fixedly connected with a second transmission shaft 87, the second transmission shaft 87 is rotationally connected with a second sleeve 88, the upper end and the lower end of the second sleeve 88 are rotationally connected with a mounting shaft 89, the mounting shaft 89 is rotationally connected with a mounting frame 810, the mounting frame 810 is fixedly connected with the first mounting plate 71, the second transmission shaft 87 is fixedly connected with a rocker 811, the second transmission shaft 87 is provided with a switching mechanism, the switching mechanism can change the fitting state between the first gear 81 and the second gear 82 and the second bevel gear 83 according to the fitting state of a supporting plate 3 and a supporting surface, the second bevel gear 85 is in a state of the first connection sleeve 812 and the second connection sleeve 812 is kept in rotation, and the second connection between the first bevel gear 85 and the second transmission shaft 812 is meshed with the second bevel gear 85.
By changing the engagement state between the first gear 81 and the teeth 82 and the second gear 83, the inclination of the first mounting plate 71 and the elongation of the jack 2 are controlled, so that the whole alignment and supporting work is completed at one time, the working links are reduced, the labor intensity of workers is reduced, and the operation difficulty of equipment is reduced.
As a further scheme of the invention, the switching mechanism comprises a first fan-shaped mounting shell 91, the left side and the right side of the lower end of the inner wall of the first fan-shaped mounting shell 91 are respectively and fixedly connected with an elastic telescopic rod 92, the upper end of the elastic telescopic rod 92 is respectively and fixedly connected with an arc-shaped clamping block 93, one side, close to the central position of the first fan-shaped mounting shell 91, of the arc-shaped clamping block 93 is provided with a chamfer, the middle position of the upper end of the inner wall of the first fan-shaped mounting shell 91 is provided with a first transmission tooth 94, the outer wall of the second transmission shaft 87 is fixedly connected with a bevel gear 95, the bevel gear 95 can be meshed with the first transmission tooth 94, the front end of the first fan-shaped mounting shell 91 is provided with a second fan-shaped mounting shell 96, the middle position of the lower end of the inner wall of the second fan-shaped mounting shell 96 is fixedly connected with a second transmission tooth 97, the second transmission tooth 97 can be meshed with the bevel gear 95, the rear end of the second transmission tooth 97 is fixedly connected with a stop block 98, the end of the second transmission shaft 87 is fixedly connected with a second spring 99, the second spring 99 is fixedly connected with a second shaft 88, the first support plate 91 is fixedly connected with the second fan-shaped mounting shell and the first support plate 71 and the first fan-shaped mounting shell is fixedly connected with the second fan-shaped mounting shell 71, and the second fan-shaped mounting shell is fixedly connected with the second fan-shaped mounting plate 71, and the second support plate is fixedly connected with the first fan-shaped mounting mechanism and the fan-shaped mounting plate 71.
According to the invention, the first transmission gear 94, the bevel gear 95 and the second transmission gear 97 are arranged to rotate the second transmission shaft 87, so that the meshing state of the second gear 83 is further changed, the equipment can be automatically shifted through a mechanical structure, the operation difficulty is reduced, and the accuracy of the movement of the second transmission shaft 87 is improved.
As a further aspect of the invention, the tread of the wheels of the cart 1 is made of hard rubber.
The wheel surface of the wheel is made of hard rubber, so that when the device is used, after the wheel is clamped, the cart is not easy to displace due to the elasticity of the wheel.
As a further aspect of the invention, the crank of the rocker 811 is rotatably connected to the rocker 811.
Through the crank that rotates the setting, make the workman be difficult for grinding the hand in the in-process of carrying out the operation.
Working principle: during operation, the cart 1 is moved to the lower part of a heavy object, then the cart 1 is fixed (refer to fig. 1), then the rocker 811 is manually rotated anticlockwise, so that the second transmission shaft 87 rotates anticlockwise, at the moment, under the limitation of the left arc-shaped clamping block 93, the second transmission shaft 87 is leftwards biased, the corresponding second gear 83 is meshed with the tooth 82 at the lower end of the jack 2, the second transmission shaft 87 drives the lower end of the jack 2 to rotate clockwise through the first helical gear 85 and the second helical gear 86, the jack 2 is stretched until the left end of the supporting plate 3 contacts the heavy object (when the equipment is required to be used, the left end of the supporting plate 3 is enabled to be shortest in distance with the stressed surface of the heavy object by adjusting the direction of the cart 1), at the moment, the required force required by the second gear 83 for driving the tooth 82 is increased, the rightward reaction force borne by the corresponding second gear 83 is increased (the rightward reaction force borne by the second gear 83 causes the second transmission shaft 87 to have a rightward rotation trend, the second transmission shaft 87 overcomes the limitation of the left arc-shaped clamping block 93, further causes the bevel gear 95 to be meshed with the first transmission gear 94, and then the second gear 83 is enabled to move anticlockwise under the action of the first gear 93, and the second gear 83 is meshed with the right arc-shaped clamping block 94; the second gear 83 drives the first gear 81 to rotate, so that the first gear 81 moves upwards along the threaded rod 76; further tilting the right side of the first mounting plate 71, and tilting the jack 2; at this time, the first mounting plate 71 drives the slide bar 72 and the second mounting plate 75 to move rightward until the support plate 3 is flush with the support surface, the force required for continuing to incline the support plate 3 is increased, the force required for driving the first gear 81 to rotate by the second gear 83 is increased, the reaction force applied to the corresponding second gear 83 to the right front is increased, since the second transmission shaft 87 has reached the rightmost end of the first fan-shaped mounting shell 91, the right movement cannot be continued, the second transmission shaft 87 moves forward (the second spring 99 is compressed), and drives the bevel gear 95 to enter the second fan-shaped mounting shell 96 to be meshed with the second transmission gear 97, then as the second transmission shaft 87 rotates counterclockwise, the second transmission shaft 87 moves leftward under the action of the second transmission gear 97, the stop 98 limits the bevel gear 95 from entering the first fan-shaped mounting shell 91 in the moving process, until the second transmission shaft 87 moves to the leftmost end, the bevel gear 95 is not contacted with the stop dog 98 any more, under the action of the elasticity of the second spring 99, the second transmission shaft 87 moves backward and drives the bevel gear 95 to enter the arc-shaped clamping block 93 at the left end of the first fan-shaped installation shell 91 (by arranging a chamfer on the end face of the arc-shaped clamping block 93 or the bevel gear 95, the bevel gear 95 can pass through the arc-shaped clamping block 93), meanwhile, the second gear 83 moves to the left end along with the second transmission shaft 87 and is meshed with the tooth 82, then the position of the second transmission shaft 87 is fixed through a clamping mechanism, the second gear 83 is kept meshed with the tooth 82, finally, the second gear 83 drives the jack 2 to stretch through the tooth 82 along with manual anticlockwise rotation of the rocker 811, and the weight is jacked;
after the equipment is used, the limit of the clamping mechanism is contacted, and then the rocking rod 811 is rotated clockwise to reset the equipment for the next use.
Claims (5)
1. An improved generation high lift formula jack screw, its characterized in that: the lifting device comprises a trolley (1), a mounting rail and a jack (2), wherein the mounting rail is fixedly arranged at the upper end of the trolley (1), the mounting rail is provided with a steering mechanism, the jack (2) is fixedly arranged at the upper end of the steering mechanism, the upper end of the jack (2) is fixedly connected with a supporting plate (3), and the steering mechanism can be parallel to a stress surface of a heavy object in the process of supporting the heavy object by the jack (2);
the lower end of the supporting plate (3) is vertically and fixedly connected with a plurality of telescopic rods (4) which are arranged in a circumferential array and take the jack (2) as an axle center, and the lower end of each telescopic rod (4) is fixedly arranged on the steering mechanism;
the center of the lower end of the supporting plate (3) is provided with a mounting groove (51), a first shaft sleeve (52) is arranged in the mounting groove (51), a plurality of first springs (53) which are in a circumferential array are fixedly connected to the outer wall of the first shaft sleeve (52), the first springs (53) are fixedly connected with the inner wall of the mounting groove (51), and the upper end of the jack (2) is vertically and slidably clamped with the inner wall of the first shaft sleeve (52);
the mounting rail comprises first rails (61) which are symmetrically arranged front and back, the first rails (61) are fixedly connected with the trolley (1), the upper ends of the first rails (61) are fixedly connected with supporting rods (62), and the upper ends of the supporting rods (62) are fixedly connected with second rails (63); the steering mechanism comprises a first mounting plate (71), the upper end of the first mounting plate (71) is rotationally connected with the lower end of a jack (2), the upper end of the first mounting plate (71) is fixedly connected with the lower end of a telescopic rod (4), sliding rods (72) are fixedly connected to the front side and the rear side of the left side of the first mounting plate (71), the sliding rods (72) are slidably connected with a second rail (63), connecting blocks (73) are fixedly connected to the front side and the rear side of the right side of the first mounting plate (71), a rotating shaft (74) is fixedly connected between the connecting blocks (73), the rotating shaft (74) is rotationally connected with a second mounting plate (75), a threaded rod (76) is vertically sleeved on the second mounting plate (75), a third mounting plate (77) is rotationally connected to the lower end of the threaded rod (76), sliding blocks (78) are fixedly connected to the front side and the rear side of the third mounting plate (77), driving mechanisms are arranged on the first mounting plate (71) and used for controlling the jack (2) to extend upwards relative to the second mounting plate (75).
2. An improved high lift screw jack as claimed in claim 1 wherein: the driving mechanism comprises a first gear (81), the first gear (81) is rotationally connected with the upper end of a second mounting plate (75), the inner wall of the first gear (81) is in threaded connection with a threaded rod (76), a tooth (82) is arranged at the bottom of a jack (2), the tooth (82) is provided with a second gear (83) with the first gear (81), the upper end of the second gear (83) is fixedly connected with a first transmission shaft (84), the upper end of the first transmission shaft (84) is fixedly connected with a first bevel gear (85), the first bevel gear (85) is meshed with a second bevel gear (86), the second bevel gear (86) is fixedly connected with a second transmission shaft (87), the second transmission shaft (87) is rotationally connected with a second sleeve (88), the upper end and the lower end of the second sleeve (88) are rotationally connected with a mounting shaft (89), the mounting shaft (89) is rotationally connected with a mounting frame (810), the mounting frame (810) is fixedly connected with the first mounting plate (71), the second transmission shaft (87) is fixedly connected with a rocker (87), the second transmission shaft (87) is meshed with a second support plate (87), the second transmission shaft (811) is rotatably connected with a second support plate (83), the second support mechanism (811) and the second support mechanism (81) in a state changing state, the first transmission shaft (84) and the second transmission shaft (87) are both rotatably connected with a connecting sleeve (812), and the connecting sleeve (812) is used for keeping the meshing state of the first bevel gear (85) and the second bevel gear (86).
3. An improved high lift screw jack as claimed in claim 2 wherein: the switching mechanism comprises a first fan-shaped mounting shell (91), grooves are formed in the left side and the right side of the lower end of the inner wall of the first fan-shaped mounting shell (91), an elastic telescopic rod (92) is fixedly connected to the left side and the right side of the lower end of the inner wall of the first fan-shaped mounting shell, an arc-shaped clamping block (93) is fixedly connected to the upper end of the elastic telescopic rod (92), a chamfer is formed in one side, close to the center position of the first fan-shaped mounting shell (91), of the arc-shaped clamping block (93), a first transmission tooth (94) is arranged in the middle position of the upper end of the inner wall of the first fan-shaped mounting shell (91), a bevel gear (95) is fixedly connected to the outer wall of the second transmission shaft (87), a second fan-shaped mounting shell (96) can be meshed with the first transmission tooth (94), a second transmission tooth (97) is fixedly connected to the middle position of the lower end of the second fan-shaped mounting shell (96), a second transmission tooth (97) is fixedly connected to the rear end of the bevel gear (97), the second transmission tooth (97) is fixedly connected to the second fan-shaped mounting shell (99) and the first fan-shaped mounting shell (71) and the first fan-shaped mounting shell (91) and the second fan-shaped mounting shell (99) are fixedly connected to the first fan-shaped mounting shell (71), the clamping mechanism is used for fixing the position of the second transmission shaft (87) after the supporting plate (3) is aligned with the supporting surface.
4. An improved high lift screw jack according to claim 3, wherein: the wheel surface of the wheel of the trolley (1) is made of hard rubber.
5. An improved high lift screw jack as claimed in claim 4 wherein: the crank of the rocker (811) is rotatably connected with the rocker (811).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210474672.0A CN115010044B (en) | 2022-04-29 | 2022-04-29 | Improved generation high lift formula screw jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210474672.0A CN115010044B (en) | 2022-04-29 | 2022-04-29 | Improved generation high lift formula screw jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115010044A CN115010044A (en) | 2022-09-06 |
| CN115010044B true CN115010044B (en) | 2023-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210474672.0A Active CN115010044B (en) | 2022-04-29 | 2022-04-29 | Improved generation high lift formula screw jack |
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| Country | Link |
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| CN (1) | CN115010044B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20013994U1 (en) * | 2000-08-14 | 2001-02-08 | Bauerfeld, Frank, 08527 Plauen | Device for lifting and tensioning motor vehicles |
| CN203558811U (en) * | 2013-11-12 | 2014-04-23 | 国家电网公司 | Lift-type auxiliary emplacement device of high-voltage switch cabinet |
| CN104891385A (en) * | 2015-05-20 | 2015-09-09 | 第一拖拉机股份有限公司 | Electric screw lift platform with vertical guiding and stroke control |
| CN105329461A (en) * | 2015-11-24 | 2016-02-17 | 河北利箭精密仪器有限公司 | Simple aerial bomb hanging trolley |
| CN105502221A (en) * | 2016-01-22 | 2016-04-20 | 蔡婷婷 | Three-dimensional direction self-adaptive plane hydraulic jack |
| CN213865287U (en) * | 2020-11-20 | 2021-08-03 | 瑞安市遵盛汽车零部件有限公司 | Jack support bracket |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6691983B2 (en) * | 2002-05-23 | 2004-02-17 | Harry H. Arzouman | Economical lifting device-jack stand |
-
2022
- 2022-04-29 CN CN202210474672.0A patent/CN115010044B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20013994U1 (en) * | 2000-08-14 | 2001-02-08 | Bauerfeld, Frank, 08527 Plauen | Device for lifting and tensioning motor vehicles |
| CN203558811U (en) * | 2013-11-12 | 2014-04-23 | 国家电网公司 | Lift-type auxiliary emplacement device of high-voltage switch cabinet |
| CN104891385A (en) * | 2015-05-20 | 2015-09-09 | 第一拖拉机股份有限公司 | Electric screw lift platform with vertical guiding and stroke control |
| CN105329461A (en) * | 2015-11-24 | 2016-02-17 | 河北利箭精密仪器有限公司 | Simple aerial bomb hanging trolley |
| CN105502221A (en) * | 2016-01-22 | 2016-04-20 | 蔡婷婷 | Three-dimensional direction self-adaptive plane hydraulic jack |
| CN213865287U (en) * | 2020-11-20 | 2021-08-03 | 瑞安市遵盛汽车零部件有限公司 | Jack support bracket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115010044A (en) | 2022-09-06 |
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