CN214879885U - Shear type lifting device with mechanical lever type boosting mechanism - Google Patents
Shear type lifting device with mechanical lever type boosting mechanism Download PDFInfo
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- CN214879885U CN214879885U CN202120022963.7U CN202120022963U CN214879885U CN 214879885 U CN214879885 U CN 214879885U CN 202120022963 U CN202120022963 U CN 202120022963U CN 214879885 U CN214879885 U CN 214879885U
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- type lifting
- bearing platform
- scissor
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Abstract
The utility model discloses a scissor type lifting device with a mechanical lever type power assisting mechanism, which comprises a chassis, a bearing platform, a scissor type lifting mechanism, a power assisting mechanism and a hydraulic cylinder horizontally fixed at the rear end of the chassis; the shear type lifting mechanism comprises a plurality of groups of shear type lifting arms which are hinged, wherein the first group of shear type lifting arms which are connected with the chassis in a sliding mode comprise cross rods which are connected with the chassis in a sliding mode, the cross rods are hinged with piston rods of the hydraulic cylinders, and the power assisting mechanism comprises power assisting rods connected with the cross rods and lifting rollers which can be in rolling contact with the bottom of the bearing platform; when the scissor type lifting hanging device is at the lowest point, the scissor type lifting mechanism and the bearing platform are jacked up through the power assisting mechanism, the scissor type lifting mechanism which avoids the dead point when the power assisting rod reaches the limit position and is separated from the bearing platform starts to work, the scissor type lifting mechanism drives the bearing platform to continuously lift under the driving of the hydraulic cylinder, namely, the horizontal layout of the hydraulic cylinder is met through the addition of the power assisting mechanism, and the dead point of the scissor type lifting mechanism is effectively avoided.
Description
Technical Field
The utility model relates to a cut formula elevating gear field, specific cut formula elevating gear with mechanical lever assist drive device that says so.
Background
At present, a lifting device is often used for hanging or conveying materials, and a shear type lifting device is widely used due to high lifting height. The disadvantage of the prior art scissor lifts is that the size of the hydraulic cylinders limits the height of the lowest point when the lift bottoms out. In special industries, hydraulic cylinders are required to be in a horizontal layout, so that the size limitation of the hydraulic cylinders is completely avoided, but the horizontal layout enables the stress condition of the hydraulic cylinders to be severer, the stress condition is reflected in a hydraulic system, and the operation force of personnel is very large.
SUMMERY OF THE UTILITY MODEL
In order to solve not enough among the prior art, the utility model provides a cut formula elevating gear with mechanical lever assist drive, cut formula and rise when hanging the device at the minimum, will cut formula elevating gear and load-bearing platform jack-up through assist drive, the formula elevating gear that cuts of the dead point has been avoided when helping hand pole reaches extreme position and load-bearing platform separation begins work, cut formula elevating gear and drive load-bearing platform under the drive of pneumatic cylinder and continue to rise to the target location, satisfy the horizontal overall arrangement of pneumatic cylinder through increasing assist drive promptly, cut formula elevating gear's mechanical dead point has been avoided effectively.
In order to achieve the above object, the utility model discloses a concrete scheme does:
a scissor type lifting device with a mechanical lever type power-assisted mechanism comprises a chassis, a bearing platform, a scissor type lifting mechanism which is supported on the chassis and can drive the bearing platform to ascend in a high position, a power-assisted mechanism which is connected with the scissor type lifting mechanism and can drive the bearing platform to ascend in a low position, and a hydraulic cylinder which is horizontally fixed at the rear end of the chassis and provides power for the scissor type lifting mechanism and the power-assisted mechanism;
the shear type lifting mechanism comprises a plurality of groups of shear type lifting arms which are hinged and connected, wherein a first group of shear type lifting arms which are connected with the chassis in a sliding mode comprise two first shear fork arms, two second shear fork arms and a cross rod which is hinged with one end of each second shear fork arm;
the original state of the power-assisted rod extends upwards in an inclined mode, under the driving of the hydraulic cylinder, the cross rod slides from the front end of the chassis to the middle of the chassis, so that the power-assisted rod is gradually straightened relative to the bearing platform in an inclined mode, the shear type lifting mechanism and the bearing platform are driven to gradually rise, when the power-assisted rod reaches the limit position and is separated from the bearing platform, the shear type lifting mechanism which avoids the dead point starts to work, and the shear type lifting mechanism drives the bearing platform to continuously rise to the target position under the driving of the hydraulic cylinder.
Furthermore, the inner side of the chassis is provided with a sliding rail for mounting a first group of shear type lifting arms, and two ends of the cross rod are provided with rotary rollers matched with the sliding rail.
Further, the number of the boosting rods is two.
Furthermore, the bottom of the bearing platform is provided with a sliding rail matched with the lifting roller.
Has the advantages that:
1. the utility model provides a cut formula elevating gear will cut formula elevating system and one section distance of bearing platform jack-up through assist drive device when initial position, the assist pole has avoided the formula elevating system that cuts of dead point to begin work when reaching extreme position and bearing platform separation, cuts formula elevating system and drives bearing platform under the drive of pneumatic cylinder and continue to rise to the target location, and this design has greatly improved the atress condition of the pneumatic cylinder that the level set up among the prior art.
2. The utility model provides a cut formula elevating gear and can make load-bearing platform fall to the minimum, be favorable to bearing the transport of thing, and can effectively avoid cutting formula elevating system's mechanical dead point through assist drive device, simple structure, convenient operation, the commonality is strong, has fine using value widely.
The present invention will be described in further detail with reference to the drawings and specific examples.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the middle shear type lifting device of the present invention.
Fig. 2 is a schematic structural diagram of a low point position of a scissor lift mechanism in the scissor lift device.
FIG. 3 is a schematic diagram of the location of a "separation point" of a power assist mechanism in a scissor lift device.
FIG. 4 is a schematic view of the "fully disengaged" position of the power assist mechanism in the scissor lift device.
Fig. 5 is a schematic structural diagram of a power-assisted mechanism in the scissor lift device.
The device comprises graphic marks, 1, a chassis, 2, a loading platform, 3, a power assisting mechanism, 301, a power assisting rod, 302, a lifting roller, 4, a scissor type lifting mechanism, 401, a first scissor arm, 402, a second scissor arm, 403, a cross rod, 5, a hydraulic cylinder, 6 and a rotary roller.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following specific embodiments, and it should be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
A scissor type lifting device with a mechanical lever type power-assisted mechanism is disclosed, please refer to fig. 1-5, and comprises a chassis 1, a bearing platform 2, a scissor type lifting mechanism 4 which is supported on the chassis 1 and can drive the bearing platform 2 to ascend in a high position, a power-assisted mechanism 3 which is connected with the scissor type lifting mechanism 4 and can drive the bearing platform 2 to ascend in a low position, and a hydraulic cylinder 5 which is horizontally fixed at the rear end of the chassis 1 and provides power for the scissor type lifting mechanism 4 and the power-assisted mechanism 3; the scissor lifting mechanism 4 comprises a plurality of groups of scissor lifting arms which are hinged to each other, wherein a first group of scissor lifting arms which are connected with the chassis 1 in a sliding mode comprise two first scissor arms 401, two second scissor arms 402 and a cross rod 403 which is hinged to one end of each of the two second scissor arms 402, the cross rod 403 which is connected with the chassis 1 in a sliding mode is hinged to a piston rod of the hydraulic cylinder 5, the boosting mechanism 3 comprises a plurality of boosting rods 301 which are connected with the cross rod 403, and a plurality of lifting rollers 302 which are arranged at one ends, far away from the cross rod 403, of the boosting rods 301 and can be in rolling contact with the bottom of the bearing platform 2. The original state of the boosting rod 301 is that the boosting rod extends obliquely upwards, under the drive of the hydraulic cylinder 5, the cross rod 403 slides from the front end of the chassis 1 to the middle of the chassis 1, so that the boosting rod 301 is gradually straightened relative to the bearing platform 2 from the inclination, the scissor type lifting mechanism 4 and the bearing platform 2 are driven to gradually rise, when the boosting rod 301 reaches the limit position and is separated from the bearing platform 2, the scissor type lifting mechanism 4 which avoids the dead point starts to work, and the scissor type lifting mechanism 4 drives the bearing platform 2 to continuously rise to the target position under the drive of the hydraulic cylinder 5. The scissor type lifting device mainly realizes the lifting of the bearing platform 2 by a lever principle and a dead point balance principle.
In detail, the inner side of the chassis 1 is provided with a slide rail for mounting a first set of scissor lift arms, and two ends of the cross bar 403 are provided with rotary rollers 6 matched with the slide rail.
In detail, referring to fig. 5, the number of the boosting rods 301 is two. Wherein, helping hand pole 301 and horizontal pole 403 are all formed by 45 steel welding.
As the utility model discloses an optimal scheme, 2 bottoms of load-bearing platform are equipped with and play to rise gyro wheel 302 complex slide rail to guarantee assist drive device 3 and load-bearing platform 2's contact stability.
The specific use method of the scissor type lifting device comprises the following steps: referring to fig. 2, a load is placed on the load-bearing platform 2, the hydraulic cylinder 5 is started, a piston rod of the hydraulic cylinder 5 pulls the cross rod 403 to move towards the middle of the chassis 1, and by the lever principle, the boosting rod 301 fixed on the cross rod 1 is gradually straightened from an inclined state, the boosting rod 301 can drive the scissor type lifting mechanism 4 and the load-bearing platform 2 to ascend in the process, when the boosting rod 301 ascends to a limit position (see fig. 3) (i.e., the boosting rod 301 is separated from the load-bearing platform 2), the scissor type lifting mechanism 4 starts to work, and the scissor type lifting mechanism 4 drives the load-bearing platform 2 to continuously ascend to a target position under the driving of the hydraulic cylinder 5 (see fig. 4).
The utility model provides a shear formula elevating gear has greatly alleviated the atress condition when "the pneumatic cylinder is arranged to the level", and the improvement condition is: the stress is half of that before the non-power-assisted mechanism.
It is right above the utility model provides a cut formula elevating gear with mechanical lever assist drive has carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and concrete implementation mode have explained, and above-mentioned embodiment only is used for helping understanding the utility model discloses a method and core thought. It should be noted that any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are within the scope of the present invention for those skilled in the art.
Claims (4)
1. The utility model provides a cut formula elevating gear with mechanical lever assist drive device which characterized in that: the device comprises a chassis (1), a bearing platform (2), a scissor type lifting mechanism (4) which is supported on the chassis (1) and can drive the bearing platform (2) to ascend in a high position, a power-assisted mechanism (3) which is connected with the scissor type lifting mechanism (4) and can drive the bearing platform (2) to ascend in a low position, and a hydraulic cylinder (5) which is horizontally fixed at the rear end of the chassis (1) and provides power for the scissor type lifting mechanism (4) and the power-assisted mechanism (3);
the scissor type lifting mechanism (4) comprises a plurality of groups of scissor type lifting arms which are hinged and connected, wherein a first group of scissor type lifting arms which are connected with the chassis (1) in a sliding mode comprise two first scissor arms (401), two second scissor arms (402) and a cross rod (403) which is hinged with one end of each second scissor arm (402), the cross rod (403) which is connected with the chassis (1) in a sliding mode is hinged with a piston rod of the hydraulic cylinder (5), and the power assisting mechanism (3) comprises a plurality of power assisting rods (301) which are connected with the cross rods (403) and a plurality of lifting rollers (302) which are arranged at one end, far away from the cross rods (403), of each power assisting rod (301) and can be in rolling contact with the bottom of the bearing platform (2);
the original state of the boosting rod (301) is that the boosting rod extends upwards in an inclined mode, under the driving of the hydraulic cylinder (5), the cross rod (403) slides from the front end of the chassis (1) to the middle of the chassis (1) to enable the boosting rod (301) to be gradually straightened relative to the bearing platform (2) in an inclined mode so as to drive the scissor type lifting mechanism (4) and the bearing platform (2) to gradually rise, the scissor type lifting mechanism (4) which avoids dead points when the boosting rod (301) reaches the limit position and is separated from the bearing platform (2) starts to work, and the scissor type lifting mechanism (4) drives the bearing platform (2) to continuously rise to the target position under the driving of the hydraulic cylinder (5).
2. A scissor lift with mechanical leverage as claimed in claim 1 wherein: the inner side of the chassis (1) is provided with a sliding rail for mounting a first group of shear type lifting arms, and two ends of the cross rod (403) are provided with rotary rollers (6) matched with the sliding rail.
3. A scissor lift with mechanical leverage as claimed in claim 1 wherein: the number of the boosting rods (301) is two.
4. A scissor lift with mechanical leverage as claimed in claim 1 wherein: the bottom of the bearing platform (2) is provided with a sliding rail matched with the lifting roller (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120022963.7U CN214879885U (en) | 2021-01-06 | 2021-01-06 | Shear type lifting device with mechanical lever type boosting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120022963.7U CN214879885U (en) | 2021-01-06 | 2021-01-06 | Shear type lifting device with mechanical lever type boosting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214879885U true CN214879885U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120022963.7U Active CN214879885U (en) | 2021-01-06 | 2021-01-06 | Shear type lifting device with mechanical lever type boosting mechanism |
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| CN (1) | CN214879885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694032A (en) * | 2021-01-06 | 2021-04-23 | 凯迈（洛阳）测控有限公司 | Shear type lifting device with mechanical lever type boosting mechanism |
-
2021
- 2021-01-06 CN CN202120022963.7U patent/CN214879885U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694032A (en) * | 2021-01-06 | 2021-04-23 | 凯迈（洛阳）测控有限公司 | Shear type lifting device with mechanical lever type boosting mechanism |
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