CN210012541U

CN210012541U - Jacking device

Info

Publication number: CN210012541U
Application number: CN201920982664.0U
Authority: CN
Inventors: 甄辉; 万海兵; 贺利彬; 梁燕平; 李青松
Original assignee: Huzhou Institute Of International Innovation Harbin University Of Technology Robot
Current assignee: Huzhou Institute Of International Innovation Harbin University Of Technology Robot
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-02-04
Anticipated expiration: 2029-06-27

Abstract

The utility model provides a jacking device. The jacking device comprises a platform, two groups of link mechanisms and a driving mechanism. The platform is used for holding the object of treating the jacking, and two sets of link mechanism connect respectively in the left and right sides of platform, and link mechanism is used for jacking platform. The driving mechanism comprises a driving piece and two transmission cranks in driving connection with the driving piece, and the two transmission cranks are respectively in driving connection with the two groups of connecting rod mechanisms. Use the technical scheme of the utility model, two transmission cranks through actuating mechanism are connected with two sets of link mechanism drives simultaneously, when drive link mechanism realizes raising and lowering functions, can provide better stability of maintaining, avoid the platform when bearing heavy load because one side link mechanism does not have the mechanism to provide the holding power and the decline of being pressed, guaranteed the levelness of platform, prevent that unstable situations such as toppling from taking place in the goods shelves handling.

Description

Jacking device

Technical Field

The utility model relates to a mechanical equipment technical field particularly, relates to a jacking device.

Background

A jacking device is a mechanical apparatus for moving an object from a low position to a high position. In the prior art, a connecting rod mechanism is driven by a single-crank driving mechanism, so that the connecting rod mechanism realizes the lifting function of a platform. Specifically, the platform can realize stable lifting through the motion of two groups of link mechanisms, wherein one group of link mechanisms is a driving link mechanism, the driving link mechanism is in driving connection with the single-crank driving mechanism, and the other group of link mechanisms is a driven link mechanism.

When the jacking device bears a heavy load, the jacking device mainly provides supporting force by means of single-crank driving of the driving connecting rod mechanism driving link. However, a heavy load also acts on the side where the driven link mechanism is located, and because the side where the driven link mechanism is located is not provided with a mechanism for providing supporting force, the side is pressed by the heavy load to be lowered, so that the platform is inclined, and further the goods shelves on the platform overturn in the conveying process.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a jacking device to solve the unsafe problem that the jacking device is easy to be pressed by heavy load and then toppled in the prior art.

In order to achieve the above object, the utility model provides a jacking device, include: the platform is used for containing an object to be jacked; the two groups of link mechanisms are respectively connected to the left side and the right side of the platform and are used for jacking the platform; and the driving mechanism comprises a driving piece and two transmission cranks in driving connection with the driving piece, and the two transmission cranks are respectively in driving connection with the two groups of connecting rod mechanisms.

In one embodiment, the driving mechanism further comprises a gear set, wherein the input end of the gear set is connected with the driving piece, and the output end of the gear set is respectively connected with the two transmission cranks.

In one embodiment, the drive member is a motor, and an output of the motor is connected to an input of the gear set.

In one embodiment, the drive member is a movable cylinder.

In one embodiment, the jacking device further comprises two first fixing seats, and the two first fixing seats are respectively installed on the left side and the right side of the driving mechanism.

In one embodiment, the jacking device further comprises two limiting rods, first ends of the two limiting rods are hinged to the two first fixing seats respectively, and second ends of the two limiting rods are hinged to the left side and the right side of the platform respectively.

In one embodiment, the jacking device further comprises a second fixed seat, and the two groups of link mechanisms are installed on the second fixed seat.

In one embodiment, the linkage mechanism comprises a lower parallel four-bar mechanism and an upper parallel four-bar mechanism, the lower parallel four-bar mechanism is mounted on the second fixed seat, the upper parallel four-bar mechanism is hinged to the lower parallel four-bar mechanism, the upper parallel four-bar mechanism and the lower parallel four-bar mechanism share one transmission connecting rod, and the transmission connecting rod is connected with the transmission crank.

In one embodiment, the drive mechanism further comprises a drive rod, a first end of the drive rod being articulated to the drive crank and a second end of the drive rod being articulated to the drive link.

Use the technical scheme of the utility model, two transmission cranks through actuating mechanism are connected with two sets of link mechanism drives simultaneously, when drive link mechanism realizes raising and lowering functions, can provide better stability of maintaining, avoid the platform when bearing heavy load because one side link mechanism does not have the mechanism to provide the holding power and the decline of being pressed, guaranteed the levelness of platform, prevent that unstable situations such as toppling from taking place in the goods shelves handling.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of a jacking device according to the present invention;

FIG. 2 shows a schematic top view of the jacking device of FIG. 1;

FIG. 3 shows a schematic perspective view of a drive mechanism of the jacking device of FIG. 1;

FIG. 4 shows a front view of the jacking device of FIG. 1;

fig. 5 shows a schematic view of the raised platform of the jacking device of fig. 4.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances for describing embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Fig. 1, 2 and 3 show an embodiment of a jacking device of the present invention, which comprises a platform 10, two sets of linkage mechanisms 20 and a driving mechanism 30. Platform 10 is used for holding the object of treating the jacking, and two sets of link mechanism 20 are connected respectively in the left and right sides of platform 10, and link mechanism 20 is used for jacking platform 10. The driving mechanism 30 includes a driving member 31 and two transmission cranks 32 in driving connection with the driving member 31, and the two transmission cranks 32 are respectively in driving connection with the two sets of link mechanisms 20.

Use the technical scheme of the utility model, two transmission cranks 32 through actuating mechanism 30 are connected with two sets of link mechanism 20 drives simultaneously, when drive link mechanism 20 realizes elevating function, can provide better stability of maintaining, avoid platform 10 because one side link mechanism does not have the mechanism to provide the holding power and the decline of being pressed when bearing heavy load, guaranteed platform 10's levelness, prevent that unstable situations such as the emergence is toppled in the goods shelves handling.

The technical scheme of the utility model, compare in utilizing lead screw mechanism to provide stable technical scheme, manufacturing cost is lower, the vertical height is low more is suitable for current goods shelves bottom space, simple structure easy maintenance.

More preferably, as shown in fig. 2 and 3, the driving mechanism 30 further includes a gear set 33, an input end of the gear set 33 is connected to the driving member 31, and output ends of the gear set 33 are respectively connected to the two transmission cranks 32. The output torque of the driving member 31 can be adjusted by the gear set 33, so that the driving mechanism 30 can drive the link mechanism 20 to achieve the lifting function more conveniently. Optionally, in the technical solution of this embodiment, the driving member 31 is a motor, and an output end of the motor is connected to an input end of the gear set 33. As a further alternative, the driver 31 also rotates the cylinder.

As another alternative, a movable cylinder such as a linear cylinder, a linear hydraulic cylinder, or an electric push rod may be used to directly drive the transmission crank 32 to rotate, so as to implement the lifting function of the link mechanism 20.

As shown in fig. 1 and 3, as a preferred embodiment, the jacking device further includes two first fixing seats 41, and the two first fixing seats 41 are respectively installed at the left and right sides of the driving mechanism 30. The driving mechanism 30 is fixed by the two first fixing seats 41, so that a more stable supporting force can be provided for the driving mechanism 30, the driving mechanism 30 can support the link mechanism 20 more stably, and the levelness of the platform 10 is ensured.

As a more preferable embodiment, as shown in fig. 1, 4 and 5, in the present embodiment, the jacking device further includes two limiting rods 50, first ends of the two limiting rods 50 are respectively hinged to the two first fixing seats 41, and second ends of the two limiting rods 50 are respectively hinged to left and right sides of the platform 10. Because the platform 10 moves in the vertical direction, the first end of the limiting rod 50 is hinged to the first fixing seat 41, and the second end of the limiting rod 50 is hinged to the platform 10, the second end of the limiting rod 50 can only move in the vertical direction along with the platform 10, and the theoretical movement track of the second end of the limiting rod 50 should be a curve, so that the elasticity of the limiting rod 50 can be applied, when the platform 10 is located at the lowest position shown in fig. 4, the limiting function is performed on the platform 10, and when the platform 10 is located at the highest position shown in fig. 5, the limiting function is also performed on the platform 10.

As shown in fig. 4 and 5, in the present embodiment, it is more preferable that the jacking device further includes a second fixing seat 42, and the two sets of linkage mechanisms 20 are mounted on the second fixing seat 42. The two sets of linkage mechanisms 20 can be supported more firmly by the second fixing base 42. Optionally, in the technical solution of this embodiment, the link mechanism 20 includes a lower parallel four-bar mechanism and an upper parallel four-bar mechanism, the lower parallel four-bar mechanism is installed on the second fixing seat 42, the upper parallel four-bar mechanism is hinged to the lower parallel four-bar mechanism, the upper parallel four-bar mechanism and the lower parallel four-bar mechanism share one transmission link 22, and the transmission link 22 is connected to the transmission crank 32. Specifically, as shown in fig. 4 and 5, the lower parallel four-bar mechanism includes a connecting rod 21, a transmission connecting rod 22 and a connecting rod 23 which are sequentially hinged, wherein the connecting rod 21 and the connecting rod 23 are respectively hinged with the second fixing seat 42; the upper parallel four-bar mechanism comprises a connecting rod 24, a transmission connecting rod 22 and a connecting rod 25 which are sequentially hinged, wherein the connecting rod 24 and the connecting rod 25 are respectively hinged with the platform 10. When the platform is used, the upper parallel four-bar mechanism and the lower parallel four-bar mechanism can be driven to realize the up-and-down displacement of the platform 10 through the left-and-right displacement of the transmission connecting rod 22.

Optionally, in the technical solution of the present embodiment, the driving mechanism 30 further includes a transmission rod 34, a first end of the transmission rod 34 is hinged to the transmission crank 32, and a second end of the transmission rod 34 is hinged to the transmission link 22. I.e., the drive crank 32 displaces the drive link 22 from side to side via the drive rod 34.

Specifically, when the platform is used, the driving member 31 drives the transmission crank 32 to rotate through the gear set 33, and then drives the transmission connecting rod 22 to move left and right through the transmission rod 34, and the transmission connecting rod 22 can drive the upper parallel four-bar mechanism and the lower parallel four-bar mechanism to move so as to realize the up-and-down displacement of the platform 10. The platform 10 descends when the driving member 31 rotates the driving crank 32 counterclockwise, and the platform 10 descends to the lowest position when the driving link 22 and the driving crank 32 are parallel to each other. The raising of the platform 10 is the reverse of the lowering of the platform 10.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A jacking device, comprising:

the platform (10) is used for containing an object to be jacked;

two groups of link mechanisms (20) are respectively connected to the left side and the right side of the platform (10), and the link mechanisms (20) are used for jacking the platform (10);

the driving mechanism (30) comprises a driving piece (31) and two transmission cranks (32) in driving connection with the driving piece (31), and the two transmission cranks (32) are respectively in driving connection with the two groups of connecting rod mechanisms (20).

2. Jacking device according to claim 1, wherein said driving mechanism (30) further comprises a gear set (33), the input of said gear set (33) being connected to said driving member (31), the output of said gear set (33) being connected to two of said transmission cranks (32), respectively.

3. Jacking device according to claim 2, wherein said driving member (31) is a motor, the output of which is connected to the input of said gear set (33).

4. Jacking device according to claim 1, wherein said driving member (31) is a movable cylinder.

5. Jacking device according to claim 1, further comprising two first fixed seats (41), the two first fixed seats (41) being respectively mounted on the left and right sides of the driving mechanism (30).

6. The jacking device as claimed in claim 5, further comprising two limiting rods (50), wherein first ends of the two limiting rods (50) are respectively hinged to the two first fixing seats (41), and second ends of the two limiting rods (50) are respectively hinged to the left side and the right side of the platform (10).

7. Jacking device according to claim 1, further comprising a second fixed seat (42), said two sets of linkage mechanisms (20) being mounted on said second fixed seat (42).

8. Jacking apparatus according to claim 7, wherein said linkage (20) comprises a lower parallelogram linkage mounted on said second fixed seat (42) and an upper parallelogram linkage articulated to said lower parallelogram linkage, said upper parallelogram linkage and said lower parallelogram linkage sharing a single transmission link (22), said transmission link (22) being connected to said transmission crank (32).

9. Jacking device according to claim 8, wherein said driving mechanism (30) further comprises a transmission rod (34), a first end of said transmission rod (34) being hinged to said transmission crank (32), a second end of said transmission rod (34) being hinged to said transmission link (22).