CN108706502B

CN108706502B - Table top structure for adjusting gravity center of shear type lifter

Info

Publication number: CN108706502B
Application number: CN201810523486.5A
Authority: CN
Inventors: 余龙胜; 李明忠; 徐峰
Original assignee: Hefei Yihang Mechanical Polytron Technologies Inc
Current assignee: Hefei Yihang Mechanical Polytron Technologies Inc
Priority date: 2018-05-28
Filing date: 2018-05-28
Publication date: 2020-01-03
Anticipated expiration: 2038-05-28
Also published as: CN108706502A

Abstract

The invention discloses a table top structure for adjusting the gravity center of a shear type lifter, and relates to the technical field of lifting equipment. The invention comprises a support plate; the upper surface of the supporting plate is in sliding fit with an adjusting plate; the lower surfaces of the supporting plates are provided with first channels in parallel; the inner surfaces of the two first channels are fixedly connected with second racks respectively; a second channel is formed on the lower surface of the adjusting plate in a position corresponding to the first rack; the inner side surface of the second channel is rotatably connected with a first walking gear and a second walking gear through a connecting shaft; the first walking gear is connected with a second driving wheel through a connecting shaft. According to the invention, power is transmitted to the first walking gear and the second walking gear through the power gear, the first driving wheel and the second driving wheel, and the second walking gear is meshed with the first rack to realize rolling, so that the adjusting plate is driven to move, and the problems that the existing shear type lifting machine has no gravity center adjusting structure and has great potential safety hazard are solved.

Description

Table top structure for adjusting gravity center of shear type lifter

Technical Field

The invention belongs to the technical field of lifting equipment, and particularly relates to a table top structure for adjusting the gravity center of a shear type lifter.

Background

The scissor lift is an automobile repairing machine used in automobile repairing industry; the lifting is driven by a hydraulic system, and the lifting is also called as a hydraulic lifter; one end of one group of supporting rods slides on the lower surface of a lifting table top in the lifting process of the scissor type lifting machine, one end of the other group of supporting rods slides on a base, the distance between the supporting rods is smaller and smaller along with the lifting height, so that the gravity center of a lifted heavy object cannot be guaranteed between the two supporting rods, when the heavy object such as an automobile is in a bad stop position, the gravity center of the automobile can be possibly transferred to the outside of the supporting points of the supporting rods along with the lifting height, and the existing scissor type lifting machine is not provided with a gravity center adjusting structure, so that great potential safety hazards exist.

Disclosure of Invention

The invention aims to provide a table top structure for adjusting the gravity center of a scissor lift, which transmits power to a first walking gear and a second walking gear through a power gear, a first transmission wheel and a second transmission wheel, wherein the second walking gear is meshed with a first rack to realize rolling, so that an adjusting plate is driven to move, and the problem that the existing scissor lift is not provided with a gravity center adjusting structure and has great potential safety hazard is solved.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a table top structure for adjusting the gravity center of a shear type lifter, which comprises a supporting plate;

the upper surface of the supporting plate is in sliding fit with an adjusting plate; the lower surface of the supporting plate is connected with a supporting rod;

the upper surfaces of the supporting plates are fixedly connected with first racks side by side; the lower surfaces of the supporting plates are provided with first channels in parallel; the inner surfaces of the two first channels are fixedly connected with second racks respectively;

the two second racks are respectively meshed with a power gear; the two power gears are connected in series through a transmission shaft; the circumferential side surfaces of two ends of the transmission shaft are respectively and fixedly connected with a first transmission wheel;

a second channel is formed in the lower surface of the adjusting plate corresponding to the first rack; the inner side surface of the second channel is rotatably connected with a first walking gear and a second walking gear through a connecting shaft; the first walking gear is connected with a second transmission wheel through a connection shaft;

the first walking gear is meshed with the second walking gear;

the second walking gear is meshed with the first rack;

the first driving wheel is connected with the second driving wheel through a driving part;

one end of the supporting rod is rotatably connected with the transmission shaft through a connecting hole.

Further, the first driving wheel is a chain wheel or a synchronous belt wheel.

Further, the second transmission wheel is a chain wheel or a synchronous belt wheel.

Furthermore, the first transmission wheel and the second transmission wheel are equal in size.

The invention has the following beneficial effects:

1. the gravity center of the heavy object is adjusted in the lifting process, and the lifting safety is effectively ensured.

2. The invention can synchronize the movement of the supporting rod and the movement of the adjusting plate through gear transmission, has good stability and ensures that the center of gravity is at the optimal position in real time.

3. The invention is driven by the gear piece without additional power drive and artificial adjustment, so that the invention is simple, efficient and accurate in adjustment.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a table top structure for center of gravity adjustment of a scissor lift according to the present invention;

FIG. 2 is a front view of the structure of FIG. 1;

FIG. 3 is a schematic structural view of a support plate;

FIG. 4 is a schematic bottom view of the support plate;

FIG. 5 is a front view of the structure of the adjustment plate;

FIG. 6 is a bottom view of the structure of FIG. 5;

FIG. 7 is a cross-sectional view taken at A-A of FIG. 5;

in the drawings, the components represented by the respective reference numerals are listed below:

1-a support plate, 2-an adjusting plate, 3-a support rod, 101-a first rack, 102-a first channel, 103-a second rack, 104-a power gear, 105-a first transmission wheel, 201-a second channel, 202-a first walking gear, 203-a second walking gear, 204-a second transmission wheel and 1041-a transmission shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening", "upper", "lower", "one end", "side", "inner", "peripheral side", and the like, indicate orientations or positional relationships for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.

The invention relates to a table top structure for adjusting the gravity center of a scissor lift, which comprises a supporting plate 1;

as shown in fig. 1 and 2, an adjusting plate 2 is slidably fitted on the upper surface of a supporting plate 1 through a guide rail or a dovetail groove or a T-shaped groove; the lower surface of the supporting plate 1 is connected with a supporting rod 3;

as shown in fig. 3 and 4, two first racks 101 are fixedly connected to the upper surface of the support plate 1 side by side; the lower surface of the support plate 1 is provided with a first channel 102 in parallel; the inner surfaces of the two first channels 102 are respectively welded or fixedly connected with a second rack 103 through screws;

as shown in fig. 2, the two second racks 103 are respectively engaged with power gears 104; the two power gears 104 are connected in series through the transmission shaft 1041, so that the rotation and the movement of the two power gears 104 are synchronous; the circumferential sides of the two ends of the transmission shaft 1041 are respectively and fixedly connected with a first transmission wheel 105; the first drive wheel 105 is a sprocket or a timing pulley; the power gear 104 and the first driving wheel 105 can synchronously keep rotating through the driving shaft 1041, the power gear 104 rotates more stably in a mode that the second rack 103 is meshed with the power gear 104, and the phenomenon of slipping is avoided, so that the rotating stability of the first driving wheel 105 and the synchronism with the power gear 104 are ensured;

as shown in fig. 5-7, the lower surface of the adjusting plate 2 is provided with a second channel 201 at a position corresponding to the first rack 101; the inner side surface of the second groove 201 is rotatably connected with a first walking gear 202 and a second walking gear 203 which are meshed with each other through a connecting shaft; the first walking gear 202 is connected with a second transmission wheel 204 through a connecting shaft, the second transmission wheel 204 is a chain wheel or a synchronous belt wheel, and the first walking gear 202 and the second transmission wheel 204 can keep synchronous rotation through the connection of the connecting shaft;

the second walking gear 203 is meshed with the first rack 101;

the first driving wheel 105 is connected with the second driving wheel 204 through a chain or a synchronous belt, the chain or the synchronous belt is used, so that the rotation of the first driving wheel 105 and the rotation of the second driving wheel 204 can be kept synchronous, the phenomenon of slipping is avoided, the first driving wheel 105 and the second driving wheel 204 are equal in size, and the moving stability and the position accuracy are guaranteed;

one end of the support rod 3 is provided with a hinged support and is rotatably connected with the transmission shaft 1041 through a connecting hole;

as shown in fig. 1-2, when the lifter starts to lift, the upper end of the support rod 3 starts to move rightwards; thereby driving the power gear 104 to move through the transmission shaft; the power gear 104 starts to rotate due to the engagement with the second rack 103; the first transmission wheel 105 is driven to rotate by the transmission shaft 1041; the first driving wheel 105 drives the second driving wheel 204 to synchronously rotate through a chain or a synchronous belt;

as shown in fig. 5-7, the second transmission wheel 204 transmits power to the first travel gear 202 through the connection shaft; the first traveling gear 202 and the second traveling gear 203 are engaged; so that the rotation directions of the first and second traveling gears 202 and 203 are opposite;

as shown in fig. 2, 3, 5 and 7, the second traveling gear 203 is engaged with the first rack 101, and a rightward thrust is generated by the rotation of the second traveling gear 203, so that the adjusting plate 2 starts to move rightward, thereby moving in synchronization with the supporting points of the supporting rods 3, so that the center of the weight on the adjusting plate 2 is always maintained between the supporting points of the two supporting rods 3, thereby ensuring the lifting stability.

The gravity center of the heavy object is synchronously adjusted in real time along with the change of the supporting point in the lifting process, the lifting safety and the stability in the lifting process are effectively ensured, and the power transmission is more stable and stable through the transmission among the gear, the rack, the chain wheel or the synchronous wheel; meanwhile, power is transmitted by means of movement of the supporting point, and additional power driving and manual adjustment are not needed, so that the device is simple and efficient in structure and accurate in adjustment.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a mesa structure for cutting formula machine of lifting focus is adjusted which characterized in that: comprises a support plate (1);

the upper surface of the support plate (1) is in sliding fit with an adjusting plate (2); the lower surface of the supporting plate (1) is connected with a supporting rod (3);

the upper surface of the support plate (1) is fixedly connected with a first rack (101) side by side; a first channel (102) is arranged on the lower surface of the support plate (1) side by side; the inner surfaces of the two first channels (102) are fixedly connected with second racks (103) respectively;

the two second racks (103) are respectively meshed with a power gear (104); the two power gears (104) are connected in series through a transmission shaft (1041); the peripheral side surfaces of two ends of the transmission shaft (1041) are respectively and fixedly connected with a first transmission wheel (105);

a second channel (201) is formed in the lower surface of the adjusting plate (2) in a position corresponding to the first rack (101); the inner side surface of the second channel (201) is rotatably connected with a first walking gear (202) and a second walking gear (203) through a connecting shaft; the first walking gear (202) is connected with a second transmission wheel (204) through a connection shaft;

the first walking gear (202) is meshed with the second walking gear (203);

the second walking gear (203) is meshed with the first rack (101);

the first driving wheel (105) is connected with the second driving wheel (204) through a driving part;

one end of the support rod (3) is rotatably connected with the transmission shaft (1041) through a connecting hole.

2. A table top structure for adjustment of the centre of gravity of a scissor lift according to claim 1, wherein the first driving wheel (105) is a sprocket or a timing pulley.

3. A table top construction for the centre of gravity adjustment of a scissor lift according to claim 1, wherein the second transmission wheel (204) is a sprocket or a timing pulley.

4. A table top construction for the centre of gravity adjustment of a scissor lift according to claim 1, wherein the first drive wheel (105) and the second drive wheel (204) are of equal size.