CN211004360U - Cross type lifting mechanism - Google Patents
Cross type lifting mechanism Download PDFInfo
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- CN211004360U CN211004360U CN201921251788.8U CN201921251788U CN211004360U CN 211004360 U CN211004360 U CN 211004360U CN 201921251788 U CN201921251788 U CN 201921251788U CN 211004360 U CN211004360 U CN 211004360U
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Abstract
The utility model discloses a crossing elevating system relates to jacking equipment technical field. The utility model discloses a crossed lifting mechanism, including base, plummer, fork type frame includes first connecting rod and second connecting rod, the middle part of first connecting rod and the middle part rotatable coupling of second connecting rod, the one end of first connecting rod and base rotatable coupling, the other end and plummer sliding connection, the one end and the base sliding connection of second connecting rod, the other end and plummer rotatable coupling; a telescopic driving device; and one end of the vertical jacking device is connected with the base, the other end of the vertical jacking device is connected with the bearing table, and the jacking direction of the vertical jacking device is perpendicular to the sliding direction of the first connecting rod and/or the second connecting rod. The utility model discloses a crossing elevating system can utilize less drive power to realize elevating system at the smooth rising of extreme lower position, avoids the energy extravagant, and spare part bears the too high problem of load.
Description
Technical Field
The utility model relates to a jacking equipment technical field especially relates to a crossing elevating system.
Background
The crossed lifting mechanism has large bearing capacity, stable lifting, installation and maintenance and good retractability, and the crossed lifting mechanism has small volume and small occupied space after being retracted, so that the rack can be lowered into a ground groove or an installation groove of some equipment, the top of the rack is parallel and level to the ground or a working table surface of the equipment, and the crossed lifting mechanism is widely applied. For example, the lifting device is used for lifting a vehicle during vehicle maintenance, is used for conveying goods up and down between working floors, is used for jacking a workpiece to be tested from a low position which is convenient for positioning and installation to a vacuum chamber of mass spectrum leakage detection equipment at a higher position, and the like.
At the initial stage of the lifting from the lowest height position of the currently adopted crossed lifting mechanism, two connecting rods of the fork-shaped frame are at the position close to the horizontal position, and the vertical upward component force acting on the connecting rods is the minimum at the moment, so that at the initial stage of the lifting from the lowest position of the fork-shaped lifting mechanism, the driving device needs to provide a large driving force to ensure the smooth lifting of the lifting mechanism, the energy is greatly wasted, and the load born by related parts is also greatly increased.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a cross type lifting mechanism for solving the problem that the cross type lifting mechanism in the prior art needs a large driving force to smoothly rise at the initial stage of rising from the lowest position, thereby causing energy waste and causing the bearing load of the components to be too high.
The utility model discloses a crossing elevating system, include:
a base;
a bearing table;
the fork-shaped frame comprises a first connecting rod and a second connecting rod, the middle part of the first connecting rod is rotatably connected with the middle part of the second connecting rod, one end of the first connecting rod is rotatably connected with the base, the other end of the first connecting rod is slidably connected with the bearing table, one end of the second connecting rod is slidably connected with the base, and the other end of the second connecting rod is rotatably connected with the bearing table;
the telescopic driving device is used for driving one end of the first connecting rod connected with the bearing table and/or one end of the second connecting rod connected with the base to slide along the horizontal direction;
and one end of the vertical jacking device is connected with the base, the other end of the vertical jacking device is connected with the bearing table, and the jacking direction of the vertical jacking device is perpendicular to the sliding direction of the first connecting rod and/or the second connecting rod.
Preferably, a first slide rail is arranged on the bearing table, the crossed lifting mechanism further comprises a first slide block matched with the first slide rail, and the first slide block is rotatably connected with a first connecting rod;
the base is provided with a second sliding rail, the crossed lifting mechanism further comprises a second sliding block matched with the second sliding rail, and the second sliding block is rotatably connected with a second connecting rod.
Preferably, the telescopic driving device further comprises a push plate connected with one end of the telescopic driving device, the push plate is connected with the second sliding block, and the second connecting rod is rotatably connected with the push plate.
Preferably, the telescopic driving device is a hydraulic cylinder, one end of the hydraulic cylinder is fixed with the base, and the other end of the hydraulic cylinder is connected with the push plate.
Preferably, the two ends of the push plate are provided with connecting seats, the connecting seats are provided with two connecting lugs, the bottoms of the two connecting lugs are connected through a bottom plate to form a U-shaped groove, the connecting lugs and the second connecting rod are provided with through holes, and the first connecting rod is rotatably connected with the connecting lugs through a rotating shaft which penetrates through the connecting lugs and the through holes in the second connecting rod.
Preferably, the vertical jacking device is a cylinder, one end of the cylinder is connected with the base, and the other end of the cylinder is connected with the bearing table.
Preferably, the two groups of the fork-shaped frames are symmetrical about a central line of the telescopic driving device.
Preferably, the crossed lifting mechanism further comprises a controller and a distance sensor, the distance sensor is arranged on the base or the bearing table and used for measuring the distance between the base or the bearing table in the vertical direction, and the output end of the distance sensor is connected with the input end of the controller.
Preferably, the crossed lifting mechanism further comprises a proximity switch, the proximity switch is installed on the bearing table, a probe of the proximity switch is arranged upwards along the vertical direction, and a signal output end of the proximity switch is connected with a signal input end of the controller.
Preferably, the base and/or the bearing platform are provided with a weight-reducing cavity in the middle.
Has the advantages that: the utility model discloses a crossing elevating system adopts vertical jacking device to replace flexible drive arrangement to drive at the fork frame at the initial stage that rises by the extreme lower position, utilizes vertical jacking device directly to follow vertical direction jacking certain distance with mounting platform. Because the vertical jacking device directly acts on the mounting platform, and the acting force is vertical and upward, the vertical jacking device can not be influenced by mechanical dead points of the fork-shaped frame, the platform can be jacked to a certain height only by very small jacking force in the vertical direction, the energy waste is avoided, the component is prevented from bearing overlarge load, and the service life of the component is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a three-dimensional block diagram of the present invention viewed from a first perspective;
FIG. 2 is a three-dimensional structure view from a second perspective of the present invention
Part name and number in the figure: the device comprises a base 1, a bearing platform 2, a first connecting rod 3, a second connecting rod 4, a vertical jacking device 5, a push plate 6, a first sliding rail 7, a first sliding block 8, a second sliding rail 9, a second sliding block 10, a telescopic driving device 11, a connecting seat 12 and a connecting lug 13.
Detailed Description
The features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make the objects, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Example 1
Referring to fig. 1 and fig. 2, the present embodiment provides a cross type lifting mechanism, including:
a base 1 as a bearing base and a main component mounting base of the whole lifting mechanism;
the bearing table 2 is used for bearing an object to be lifted;
the fork-shaped frame comprises a first connecting rod 3 and a second connecting rod 4, the middle part of the first connecting rod 3 is rotatably connected with the middle part of the second connecting rod 4, one end of the first connecting rod 3 is rotatably connected with the base 1, the other end of the first connecting rod 3 is slidably connected with the bearing table 2, one end of the second connecting rod 4 is slidably connected with the base 1, and the other end of the second connecting rod 4 is rotatably connected with the bearing table 2; the rotatable connection means that the two components can rotate around a fixed axis after being connected, and the rotatable connection can be hinged, pin-connected, rotary shaft-connected, hinge-connected and the like. The sliding connection means that one of the two members can slide along a certain direction relative to the other member after the two members are connected, and the sliding connection mode can be a guide rail sliding block, a sliding block guide groove, a guide sleeve and the like.
The telescopic driving device 11 is used for driving one end of the first connecting rod 3 connected with the bearing platform 2 and/or one end of the second connecting rod 4 connected with the base 1 to slide along the horizontal direction so that the fork-shaped frame can be stretched in the vertical direction; when the ends of the first connecting rod 3 and the second connecting rod 4 horizontally slide relative to the base 1 or the bearing platform 2 under the driving of the telescopic driving device 11, the two connecting rods also rotate along with the horizontal sliding. The first connecting rod 3 and the second connecting rod 4 drive the bearing platform 2 to move upwards relative to the base 1 in the rotating process, so that the lifting function is realized. The telescopic driving device 11 may be a hydraulic cylinder, an air cylinder, a linear motor, a lead screw nut driven by a rotating motor, etc.
The lifting device comprises a vertical lifting device 5, one end of the vertical lifting device 5 is connected with the base 1, the other end of the vertical lifting device is connected with the bearing table 2, and the lifting direction of the vertical lifting device 5 is perpendicular to the sliding direction of the first connecting rod 3 and/or the second connecting rod 4. The vertical jacking device 5 can be a hydraulic cylinder, an air cylinder, an electric cylinder, a lead screw nut driven by a rotating motor and the like. In the initial stage of the lifting mechanism lifting from the lowest position, the vertical lifting device 5 is used instead of the telescopic driving device 11. And directly jacking the mounting platform for a certain distance along the vertical direction by using the vertical jacking device 5. Because the vertical jacking device 5 directly acts on the mounting platform, and the acting force is vertical and upward, the vertical jacking device can not be influenced by mechanical dead points of the fork-shaped frame, the platform can be jacked to a certain height only by using very small jacking force in the vertical direction, the energy waste is avoided, the component is prevented from bearing overlarge load, and the service life of the component is prolonged. After the first connecting rod 3 and the second connecting rod 4 rotate to the angular positions far away from the mechanical dead point, the telescopic driving device 11 is used for driving the end parts of the first connecting rod 3 and/or the second connecting rod 4 to slide relative to the bearing platform 2 or the base 1, at this time, the component force acting on the first connecting rod 3 and the second connecting rod 4 along the vertical direction is large, and the mounting platform can be smoothly lifted by using the telescopic driving device 11.
Example 2
As shown in fig. 1, this embodiment is a preferred embodiment of embodiment 1, in this embodiment, a first slide rail 7 is disposed on the carrier 2, the cross type lifting mechanism further includes a first slide block 8 engaged with the first slide rail 7, and the first slide block 8 is rotatably connected to the first link 3; when the mounting platform goes up and down, the first sliding block 8 drives the first connecting rod 3 to slide along the first sliding rail 7 of the mounting platform, and meanwhile, the two connecting rods rotate relatively to achieve the stretching and retracting of the fork-shaped frame in the vertical direction.
The base 1 is provided with a second slide rail 9, the crossed lifting mechanism further comprises a second slide block 10 matched with the second slide rail 9, and the second slide block 10 is rotatably connected with the second connecting rod 4. When the mounting platform goes up and down, the second sliding block 10 drives the second connecting rod 4 to slide along the second sliding rail 9 of the base 1, and meanwhile, the two connecting rods rotate relatively to achieve the stretching and retracting of the fork-shaped frame in the vertical direction.
In this embodiment, the two connecting rods slide relative to the base 1 or the bearing platform 2 through the cooperation of the sliding blocks and the sliding rails, so that the sliding process is more accurate and stable.
Example 3
As shown in fig. 1 and 2, in this embodiment, the device further includes a push plate 6 connected to one end of the telescopic driving device 11, the push plate 6 is connected to a second slider 10, and the second link 4 is rotatably connected to the push plate 6. The telescopic driving device 11 drives the push plate 6 to move along the horizontal direction, the push plate 6 drives the end part of the second connecting rod 4 to slide along the horizontal direction, and meanwhile, the second connecting rod 4 rotates relative to the push plate 6 to jack the bearing platform 2 upwards.
Example 4
The telescopic driving device 11 in this embodiment is a hydraulic cylinder, one end of the hydraulic cylinder is fixed to the base 1, and the other end of the hydraulic cylinder is connected to the push plate 6. The hydraulic cylinder is adopted to drive the push plate 6, so that the lifting mechanism has strong load capacity and stable driving process.
Example 5
As shown in fig. 1 and 2, in this embodiment, two ends of the push plate 6 are provided with connecting seats 12, the connecting seats 12 are provided with two connecting lugs 13, the bottoms of the two connecting lugs 13 are connected through a bottom plate to form a U-shaped groove, the connecting lugs 13 and the second connecting rod are provided with through holes, and the second connecting rod is rotatably connected with the connecting lugs 13 at the U-shaped groove through a rotating shaft passing through the connecting lugs 13 and the through holes in the second connecting rod. The end of the second connecting rod 4 is connected with the connecting seat 12 by the rotating shaft, and the second connecting rod slides along the horizontal direction under the driving action of the telescopic driving device 11 and rotates around the rotating shaft to lift the bearing table 2 upwards.
Example 6
In this embodiment, the vertical jacking device 5 is a cylinder, one end of the cylinder is connected with the base 1, and the other end is connected with the bearing table 2. Because the action distance of the vertical jacking device 5 is short, a cylinder with quick response can be adopted to jack when the fork-shaped frame is at the lowest height.
Example 7
As shown in fig. 1, the present embodiment provides two sets of fork frames, and the two sets of fork frames are symmetrical about the center line of the telescopic driving means 11. Wherein the centre line of the telescopic drive 11 is the axial symmetry line of the telescopic device. Adopt the mode that two sets of fork type framves symmetry set up, can form four effectual strong points to plummer 2, the atress of plummer 2 is comparatively even like this in the lift process, is favorable to improving the stability of elevating platform.
Example 8
In this embodiment, the cross type elevating mechanism further includes a controller and a distance sensor, the distance sensor is disposed on the base 1 or the carrier 2 for measuring a distance between the base 1 or the carrier 2 in a vertical direction, an output end of the distance sensor is connected to an input end of the controller, the distance sensor measures a distance between the carrier 2 and the base 1 in real time, and transmits a detected distance value to the controller, when the carrier 2 ascends, if the distance between the carrier 2 and the base 1 is relatively short, it is described that the first link 3 and the second link 4 are in a relative position relatively close to a mechanical dead point, and at this time, the controller controls the vertical lifting device 5 to move to lift the carrier 2 upward, when the distance sensor detects that the mounting platform is relatively far from the base 1, the controller controls the telescopic driving device 11 to operate, the driving fork-type frame to extend in the vertical direction, and drives the mounting platform to move upward, wherein the controller is preferably P L C, in other embodiments, the controller may also be a Central Processing Unit (CPU), or A Specific Integrated Circuit (ASIC), or a plurality of the present invention may be configured as one or a plurality of the present invention.
Example 9
In this embodiment, crossing elevating system still includes proximity switch, proximity switch installs on plummer 2, proximity switch's probe is arranged up along vertical direction, proximity switch's signal output part is connected with the signal input part of controller. When the object to be lifted is arranged on the bearing table 2, the proximity switch is triggered and sends a trigger signal to the controller, and the controller can control the lifting mechanism to lift or control other related equipment on the production line to prepare for the next operation after receiving the trigger signal
Example 10
In this embodiment, the weight reduction cavity is disposed in the middle of the base 1 and/or the bearing table 2, so that the weight of the base 1 and/or the bearing table 2 can be reduced, the material is saved, the power consumption of the lifting process of the bearing table 2 is reduced, and the operation space of an operator is increased when the parts are installed.
As described above, only the specific embodiments of the present invention are provided, and those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working processes of the system, the module and the unit described above can refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered by the scope of the present invention.
Claims (10)
1. Crossing elevating system, its characterized in that includes:
a base;
a bearing table;
the fork-shaped frame comprises a first connecting rod and a second connecting rod, the middle part of the first connecting rod is rotatably connected with the middle part of the second connecting rod, one end of the first connecting rod is rotatably connected with the base, the other end of the first connecting rod is slidably connected with the bearing table, one end of the second connecting rod is slidably connected with the base, and the other end of the second connecting rod is rotatably connected with the bearing table;
the telescopic driving device is used for driving one end of the first connecting rod connected with the bearing table and/or one end of the second connecting rod connected with the base to slide along the horizontal direction;
and one end of the vertical jacking device is connected with the base, the other end of the vertical jacking device is connected with the bearing table, and the jacking direction of the vertical jacking device is perpendicular to the sliding direction of the first connecting rod and/or the second connecting rod.
2. The cross-bar lifting mechanism of claim 1, wherein: the crossed lifting mechanism further comprises a first sliding block matched with the first sliding rail, and the first sliding block is rotatably connected with a first connecting rod;
the base is provided with a second sliding rail, the crossed lifting mechanism further comprises a second sliding block matched with the second sliding rail, and the second sliding block is rotatably connected with a second connecting rod.
3. The cross-bar lifting mechanism of claim 2, wherein: the telescopic driving device comprises a first sliding block, a second sliding block and a telescopic driving device, and is characterized by further comprising a push plate connected with one end of the telescopic driving device, the push plate is connected with the second sliding block, and the second connecting rod is rotatably connected with the push plate.
4. The cross-bar lifting mechanism of claim 3, wherein: the telescopic driving device is a hydraulic cylinder, one end of the hydraulic cylinder is fixed with the base, and the other end of the hydraulic cylinder is connected with the push plate.
5. The cross-bar lifting mechanism of claim 3, wherein: the two ends of the push plate are provided with connecting seats, the connecting seats are provided with two connecting lugs, the bottoms of the two connecting lugs are connected through a bottom plate to form a U-shaped groove, the connecting lugs and the second connecting rod are provided with through holes, and the first connecting rod passes through the connecting lugs and a rotating shaft of the through holes in the second connecting rod to form rotatable connection with the connecting lugs.
6. The cross-bar lifting mechanism of claim 1, wherein: the vertical jacking device is an air cylinder, one end of the air cylinder is connected with the base, and the other end of the air cylinder is connected with the bearing table.
7. The cross-bar lifting mechanism of claim 1, wherein: the two groups of fork-shaped frames are symmetrical about the central line of the telescopic driving device.
8. The cross-bar lifting mechanism of claim 1, wherein: the crossed lifting mechanism further comprises a controller and a distance sensor, the distance sensor is arranged on the base or the bearing table and used for measuring the distance between the base or the bearing table in the vertical direction, and the output end of the distance sensor is connected with the input end of the controller.
9. The cross-bar lifting mechanism of claim 8, wherein: crossing elevating system still includes proximity switch, proximity switch installs on the plummer, proximity switch's probe is arranged up along vertical direction, proximity switch's signal output part is connected with the signal input part of controller.
10. The cross-bar lifting mechanism of any one of claims 1 to 9, wherein: and a weight reduction cavity is arranged in the middle of the base and/or the bearing platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921251788.8U CN211004360U (en) | 2019-08-02 | 2019-08-02 | Cross type lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921251788.8U CN211004360U (en) | 2019-08-02 | 2019-08-02 | Cross type lifting mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN211004360U true CN211004360U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921251788.8U Active CN211004360U (en) | 2019-08-02 | 2019-08-02 | Cross type lifting mechanism |
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| CN (1) | CN211004360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114572664A (en) * | 2022-02-25 | 2022-06-03 | 湖北中科产业技术研究院有限公司 | Climbing frame net piece renovates automatic feeding device for building |
-
2019
- 2019-08-02 CN CN201921251788.8U patent/CN211004360U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114572664A (en) * | 2022-02-25 | 2022-06-03 | 湖北中科产业技术研究院有限公司 | Climbing frame net piece renovates automatic feeding device for building |
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