CN214141456U - Lifting mechanism - Google Patents
Lifting mechanism Download PDFInfo
- Publication number
- CN214141456U CN214141456U CN202022261424.7U CN202022261424U CN214141456U CN 214141456 U CN214141456 U CN 214141456U CN 202022261424 U CN202022261424 U CN 202022261424U CN 214141456 U CN214141456 U CN 214141456U
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- China
- Prior art keywords
- connecting rod
- gear set
- lifting mechanism
- hinge
- fixing base
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- 230000003028 elevating effect Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The application discloses elevating system, it is including being used for with the fixed fixing base in ground, set up the jacking board that is provided with the multiunit connecting rod on motor, the fixing base of fixing base upper surface and is connected and keep away from fixing base one end with the connecting rod, connecting rod intercrossing and connecting rod junction are provided with the hinge pin, keep away from the hinge pin of fixing base is first hinge pin, is close to the hinge pin of fixing base is the second hinge pin, distance between the first hinge pin is less than the distance between the second hinge pin, two distance between the first hinge pin is L1, two distance between the second hinge pin is L2, the high design of jacking board is L1+ 0.5L 2. The utility model discloses the effect of steady support piece is realized at the lift in-process to have this elevating system.
Description
Technical Field
The utility model belongs to the technical field of elevating machinery and specifically relates to a lifting mechanism is related to.
Background
The existing lifting mechanism is special equipment for high-altitude operation, and a scissor fork mechanical structure of the lifting mechanism enables a lifting platform to be lifted to have higher stability, an operation platform and higher bearing capacity, so that the high-altitude operation range is larger, the lifting mechanism is suitable for simultaneous operation of multiple persons, the working efficiency is higher, and the safety is more guaranteed.
The existing lifting mechanism can refer to the Chinese patent of the invention with the publication number of CN104129734B, and discloses a scissor arm group for a scissor-fork type lifting mechanism, which comprises a fixed seat, a base, a first scissor arm and a second scissor arm, wherein the first scissor arm and the second scissor arm are arranged between the fixed seat and the base, the second scissor arm is formed by hinging a second upper arm and a second lower arm, the tail ends of the first upper arm and the second upper arm and the tail ends of the first lower arm and the second lower arm are respectively provided with gears which are meshed with each other, an output shaft of a motor for driving the scissor arm group to work is provided with a wire spool, and the motor drives the wire spool to rotate, so that scissors are closed, and the base is lifted.
In view of the above-mentioned related art, since the lifting mechanism is a single equilateral parallelogram, the distance between the power part and the lifting part is relatively large during the lifting or descending process, and a shaking condition may occur during the lifting process, which results in a defect that a stable support cannot be achieved.
SUMMERY OF THE UTILITY MODEL
In order to enable the lifting mechanism to achieve the effect of stably supporting the piece in the lifting process, the application provides the lifting mechanism.
The application provides a lifting mechanism adopts following technical scheme:
a lifting mechanism is used for a fixed seat fixed with the ground, a motor arranged on the upper surface of the fixed seat, a plurality of groups of connecting rods and a lifting plate connected with the connecting rods and far away from one end of the fixed seat are arranged on the fixed seat, the connecting rods are mutually crossed, hinge shafts are arranged at the connecting positions of the connecting rods and the connecting rods, the hinge shafts far away from the fixed seat are first hinge shafts, the hinge shafts close to the fixed seat are second hinge shafts, the distance between the first hinge shafts is smaller than the distance between the second hinge shafts, the distance between the two first hinge shafts is L1, the distance between the two second hinge shafts is L2, and the height of the lifting plate is designed to be L1+ 0.5L 2.
Through adopting above-mentioned technical scheme, elevating system includes the fixing base, sets up the motor on the fixing base and rotates the multiunit connecting rod of being connected with the fixing base, and the connecting rod intercrossing sets up, and the output shaft and the connecting rod of motor are connected, and when the output shaft of motor rotated, drive the connecting rod motion, the jacking board of setting on the connecting rod can be close to or keep away from the fixing base. The hinge joint of the connecting rod and the connecting rod is provided with a first hinge shaft and a second hinge shaft, the first hinge shaft is far away from the fixed seat, the second hinge shaft is close to the fixed seat, the distance between the first hinge shafts is smaller than that between the second hinge shafts, and the lifting mechanism is more stable in the operation process.
Preferably, the distance between the two first hinge shafts is L1, the distance between the two second hinge shafts is L2, and the height of the jacking plate is designed to be L1+0.5 × L2.
By adopting the technical scheme, the distance between the first hinge shafts is L1, the distance between the second hinge shafts is L2, the height of the jacking plate is designed to be L1+ 0.5L 2, and the lower limit position of the lifting mechanism is required to be limited.
Preferably, the connecting rod includes the first connecting rod of being connected with the jacking board rotation, keeps away from the one end of jacking board with first connecting rod and rotates and be connected with the second connecting rod and one end and second connecting rod rotate and be connected the other end and the third connecting rod of fixing base rotation connection.
Through adopting above-mentioned technical scheme, the connecting rod includes first connecting rod, second connecting rod and third connecting rod, the one end that the second connecting rod was kept away from to first connecting rod rotates with the jacking board to be connected, the one end that the second connecting rod was kept away from to the third connecting rod rotates with the fixing base to be connected, second connecting rod cross arrangement, first connecting rod and second connecting rod, the second connecting rod forms two activity spaces respectively with the third connecting rod, when motor output shaft rotates, first connecting rod, second connecting rod and third connecting rod can be close to each other or keep away from each other, the elevating system who sets up like this is more stable.
Preferably, the first hinge shaft and the second hinge shaft are connected by a flat key.
Through adopting above-mentioned technical scheme, all adopt the parallel key to connect in the hinge pin department of connecting rod, realize that only a movable joint rotates, reduce later stage maintenance and extravagant scheduling problem.
Preferably, the fixed seat and the jacking plate are provided with gear sets, and the gear sets comprise a first gear set arranged on the jacking plate and a second gear set arranged on the fixed seat.
Through adopting above-mentioned technical scheme, be provided with the gear train in fixing base and jacking board and first connecting rod and third connecting rod junction, the gear train includes first gear train and second gear train, first gear train and second gear train are two gears of intermeshing, it rotates to drive second gear train when the motor rotates, after the third connecting rod motion on the second gear train, drive second connecting rod and first connecting rod motion in proper order, last first connecting rod drives first gear train motion, the controllable effect in the high optional position of elevating system can be realized in the setting like this.
Preferably, bearing seats are arranged between the fixed seat and the second gear set and between the jacking plate and the first gear set, and gear shafts are arranged between the fixed seat and the second gear set and between the first gear set and the jacking plate.
Through adopting above-mentioned technical scheme, be provided with the bearing frame on fixing base and jacking board, first gear train and second gear train are fixed on the bearing frame to be provided with the gear shaft at fixing base and jacking board, first gear train and second gear train pass and establish on the gear shaft, can solve the problem of elevating system wearing and tearing.
Preferably, the motor is a servo motor.
Through adopting above-mentioned technical scheme, the motor sets up to servo motor, and the precision is high, stability is good.
In summary, the present application includes at least one of the following beneficial technical effects:
a first hinge shaft and a second hinge shaft are arranged at the hinged position of the connecting rod and the connecting rod, and the horizontal distance between the first hinge shafts is smaller than that between the second hinge shafts, so that the arranged lifting mechanism is more stable;
the distance between the first hinge shafts is L1, the distance between the second hinge shafts is L2, the lifting height of the jacking plate is designed to be L1+ 0.5L 2, and the lifting plate can limit the lower limit position of the jacking plate;
the connecting rod includes first connecting rod, second connecting rod and third connecting rod, and the second connecting rod sets up alternately, and under the drive of motor, first connecting rod, second connecting rod and third connecting rod can be close to each other or keep away from each other, realize the rising or the decline of jacking board.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a front view of the overall structure of the present invention.
Fig. 3 is a left side view of the overall structure diagram of the present invention.
Description of reference numerals: 1. a fixed seat; 11. a bearing seat; 2. a jacking plate; 3. a servo motor; 4. a connecting rod; 41. a first link; 42. a second link; 43. a third link; 5. a hinge axis; 51. a first hinge axis; 52. a second hinge axis; 6. a gear set; 61. a first gear set; 62. a second gear set; 7. a gear shaft; 8. a first four-bar linkage; 9. and a second four-bar linkage.
Detailed Description
The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.
The embodiment of the utility model discloses elevating system. Referring to fig. 1, elevating system includes fixing base 1 with ground fixed connection, is provided with the motor on fixing base 1, and in this embodiment, the motor is servo motor 3, sets up the precision height like this, stability is good, the controllable function in high optional position of control elevating system in the operation that can be better. The lifting mechanism further comprises a connecting rod 4 arranged on the fixed seat 1 and a jacking plate 2 arranged at one end, far away from the fixed seat 1, of the connecting rod 4. The connecting rod 4 comprises a first connecting rod 41 rotatably connected with the jacking plate 2, a second connecting rod 42 connected with the first connecting rod 41 and a third connecting rod 43 arranged between the fixed seat 1 and the second connecting rod 42, wherein the first connecting rod 41, the second connecting rod 42 and the third connecting rod 43 are respectively provided with two groups, and each group is provided with two groups. One ends of the first connecting rod 41 and the third connecting rod 43 are arranged on the jacking plate 2 and the fixed seat 1, the other ends are close to each other or far away from each other, and the second connecting rods 42 are arranged in a cross mode. The hinge shafts 5 are arranged at the hinged positions of the first connecting rod 41, the second connecting rod 42 and the third connecting rod 43, the hinge shafts 5 comprise first hinge shafts 51 far away from the fixed seat 1 and second hinge shafts 52 close to the fixed seat 1, and the horizontal distance between the first hinge shafts 51 is smaller than that between the second hinge shafts 52 on the lifting mechanism, so that the lifting mechanism is of a structure which is small at the top and large at the bottom and is more stable when supporting the piece. In the embodiment, the first hinge shaft 51 and the second hinge shaft 52 are connected by adopting a flat key, so that only one movable joint rotates, and the problems of later maintenance and waste are reduced.
Referring to fig. 2, the second link 42 and the third link 43 constitute the first four-bar linkage 8, the first link 41 and the second link 42 constitute the second four-bar linkage 9, the first four-bar linkage 8 and the second four-bar linkage 9 are both equilateral parallelograms, and the space of the first four-bar linkage 8 is larger than the space of the second four-bar linkage 9. Because the first four-bar linkage 8 is positioned below the second four-bar linkage 9, the problem that the head and feet of the lifting mechanism are light is solved, and the lifting mechanism is more stable in the operation process. In the embodiment, the horizontal distance between the first hinge shafts 51 is L1, the horizontal distance between the second hinge shafts 52 is L2, and the lifting height of the lifting plate 2 is designed to be L1+0.5 × L2, so that the second four-bar linkage is arranged to have a limiting function on the lower limit position of the first four-bar linkage.
In order to ensure that the output directions of the first four-bar linkage 8 and the second four-bar linkage 9 are unique and stable, referring to fig. 2 and 3, a bearing seat 11 and a gear set 6 are respectively arranged on the fixed seat 1 and the jacking plate 2, the gear set 6 comprises a first gear set 61 arranged on the jacking plate 2 and a second gear set 62 arranged on the fixed seat 1, and the first gear set 61 and the second gear set 62 are respectively provided with two gears which are meshed with each other. And a gear shaft 7 is arranged on the fixed seat 1 and the lifting plate 2, and the gear shaft 7 penetrates through the fixed seat 1, the lifting plate 2, the first gear set 61 and the second gear set 62. The first gear set 61 is connected to the first link 41, and the second gear set 62 is connected to the third link 43. The fixed seat 1 and the jacking plate 2 both adopt a transmission mode of the bearing seat 11, and the problems of mechanism abrasion and short practical life are solved.
The implementation principle of the height-controllable stable lifting mechanism in the embodiment of the application is as follows: in the operation process of the lifting mechanism, the servo motor 3 operates, the output shaft of the servo motor 3 is connected with the gear shaft 7 on the fixed seat 1, when the output shaft of the servo motor 3 rotates forwards, the gear shaft 7 on the fixed seat 1 is driven to rotate, the gear shaft 7 drives the gear on the second gear group 62 to rotate, under the drive of the second gear group 62, the third connecting rod 43 connected with the second gear group 62 is driven to move towards the direction away from each other, two ends of the second connecting rod 42 connected with the third connecting rod 43 are close to each other, two ends of the second connecting rod 42 are close to each other and then drive the first connecting rod 41 to move away from each other, the first connecting rod 41 drives the gear on the first gear shaft 7 to rotate, and at the moment, the jacking plate 2 moves downwards; when the output shaft of the servo motor 3 rotates reversely, the output shaft of the servo motor 3 drives the second gear shaft 7 to rotate, the second gear shaft 7 drives the third connecting rod 43 to move, the third connecting rod 43 drives the second connecting rod 42 to move, two ends of the second connecting rod 42 are far away from each other, the first connecting rod 41 is close to each other and drives the first gear set 61 to move under the movement of the second connecting rod 42, and at the moment, the jacking plate 2 moves upwards. When the jacking plate 2 moves to the required height, the servo motor 3 stops working, and the jacking plate 2 can be stably fixed at the current height.
It will be appreciated by persons skilled in the art that the embodiments of the invention shown in the foregoing description are given by way of example only and are not limiting of the invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.
Claims (7)
1. The utility model provides a lifting mechanism for with fixed fixing base (1) in ground, set up and be provided with multiunit connecting rod (4) on motor, the fixing base (1) of fixing base (1) upper surface and be connected and keep away from jacking board (2) of fixing base (1) one end with connecting rod (4), its characterized in that includes: the connecting rods (4) are mutually crossed, hinge shafts (5) are arranged at the connecting positions of the connecting rods (4) and the connecting rods (4), the hinge shafts (5) far away from the fixed seat (1) are first hinge shafts (51), the hinge shafts (5) close to the fixed seat (1) are second hinge shafts (52), and the distance between the first hinge shafts (51) is smaller than that between the second hinge shafts (52).
2. The lifting mechanism according to claim 1, characterized in that the distance between the two first hinge axes (51) is L1, the distance between the two second hinge axes (52) is L2, and the height of the lifting plate (2) is L1+0.5 × L2.
3. The lifting mechanism according to claim 1, characterized in that the connecting rod (4) comprises a first connecting rod (41) rotatably connected to the lifting plate (2), a second connecting rod (42) rotatably connected to one end of the first connecting rod (41) remote from the lifting plate (2), and a third connecting rod (43) having one end rotatably connected to the second connecting rod (42) and the other end rotatably connected to the fixed base (1).
4. The lifting mechanism as recited in claim 2, characterized in that the first hinge axis (51) and the second hinge axis (52) are connected by a flat key.
5. The lifting mechanism according to claim 1, characterized in that a gear set (6) is arranged on the fixed base (1) and the lifting plate (2), and the gear set (6) comprises a first gear set (61) arranged on the lifting plate (2) and a second gear set (62) arranged on the fixed base (1).
6. The lifting mechanism as claimed in claim 4, characterized in that bearing seats (11) are arranged between the fixed seat (1) and the second gear set (62) and between the lifting plate (2) and the first gear set (61), and gear shafts (7) are arranged between the fixed seat (1) and the second gear set (62) and between the first gear set (61) and the lifting plate (2).
7. Lifting mechanism according to claim 1, characterized in that the motor is a servomotor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022261424.7U CN214141456U (en) | 2020-10-12 | 2020-10-12 | Lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022261424.7U CN214141456U (en) | 2020-10-12 | 2020-10-12 | Lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214141456U true CN214141456U (en) | 2021-09-07 |
Family
ID=77558076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022261424.7U Expired - Fee Related CN214141456U (en) | 2020-10-12 | 2020-10-12 | Lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214141456U (en) |
-
2020
- 2020-10-12 CN CN202022261424.7U patent/CN214141456U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210907 |