Floating mechanism and lifting appliance

Abstract

The utility model discloses a floating mechanism and a lifting appliance. The floating mechanism comprises a first mounting assembly and a second mounting assembly, the rotating assembly comprises a first rotating part and a second rotating part, the first rotating part is rotationally connected with the first mounting assembly, the second rotating part is rotationally connected with the first rotating part, and the rotating direction of the first rotating part is different from that of the second rotating part; and the second mounting assembly is connected with the second rotating piece. According to the technical scheme, the first rotating assembly and the second rotating assembly can provide floating of at least two degrees of freedom for the second mounting assembly, and due to the fact that the second mounting assembly is connected with the grabbing assembly, the grabbing assembly can float in at least two directions so as to adapt to the angle deviation of the materials, and therefore the materials can be grabbed conveniently.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of conveying, and particularly relates to a floating mechanism and a lifting appliance. BACKGROUND

[0002] When the grabbing assembly of the lifting appliance grabs materials in the material box, the materials cannot be accurately grabbed due to a certain deviation of the size of the material box.

[0003] At present, there is no separate floating mechanism suitable for the grabbing assembly to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The application aims to provide a floating mechanism and a lifting appliance.

[0005] According to a first aspect of the application, a floating mechanism is provided, comprising:

[0006] a first mounting assembly;

[0007] a rotating assembly, the rotating assembly comprising a first rotating member and a second rotating member, the first rotating member being rotationally connected with the first mounting assembly, the second rotating member being rotationally connected with the first rotating member, the rotating direction of the first rotating member being different from the rotating direction of the second rotating member;

[0008] a second mounting assembly, the second mounting assembly being connected with the second rotating member.

[0009] Optionally, the first mounting assembly comprises a first mounting plate, the first mounting plate being provided with a first through hole in a second direction;

[0010] the first rotating member comprises a joint bearing, an outer ring of the joint bearing being connected with the first through hole;

[0011] the second rotating member comprises a rotating shaft, the rotating shaft being connected with an inner ring of the joint bearing, the rotating shaft being capable of rotating around the first direction and / or the second direction.

[0012] Optionally, the first mounting assembly comprises a first mounting plate, the first mounting plate being provided with a first through hole in a second direction;

[0013] the first rotating member comprises a bearing, the surface of an outer ring of the bearing being spherical, the outer ring of the bearing being rotationally connected with the first through hole, the bearing being capable of rotating around the first direction;

[0014] the second rotating member comprises a rotating shaft, the rotating shaft being connected with an inner ring of the bearing, the rotating shaft being capable of rotating around the second direction.

[0015] Optionally, the second mounting assembly comprises:

[0016] a second mounting plate, the second mounting plate being provided with a second through hole in the third direction;

[0017] a support frame, the support frame comprising a support plate and a connecting plate, the support plate being located below the second mounting plate in the third direction, and the connecting plate connecting the second rotating member and the support plate through the second through hole.

[0018] Optionally, the connecting plate is provided with a mounting hole in the second direction, and the second rotating member is partially embedded in the mounting hole.

[0019] Optionally, the floating mechanism comprises a driving assembly and an abutting portion, and a driving end of the driving assembly is connected with the abutting portion.

[0020] The driving assembly is capable of driving the abutting portion to move in the third direction towards the second mounting plate to abut against the second mounting plate; or

[0021] The driving assembly is capable of driving the abutting portion to move in the third direction away from the second mounting plate.

[0022] Optionally, the second mounting plate is provided with a third through hole in the third direction.

[0023] The driving assembly comprises:

[0024] a driving member, the driving member being arranged on the first mounting assembly.

[0025] The floating mechanism further comprises a connecting rod and a detection assembly, one end of the connecting rod being connected with the abutting portion, the other end of the connecting rod being arranged through the third through hole, and the detection assembly being arranged on the other end of the connecting rod away from the abutting portion.

[0026] Optionally, the diameter of the connecting rod is smaller than the diameter of the third through hole.

[0027] Optionally, one end of the first mounting assembly towards the second mounting assembly is provided with a first limiting rod, one end of the second mounting plate towards the first mounting assembly is provided with a second limiting rod, and the projections of the first limiting rod and the second limiting rod in the third direction are coincident.

[0028] Optionally, the first limiting rod is threadedly connected with the first mounting assembly, and the distance between the first limiting rod and the second limiting rod can be adjusted; and / or

[0029] the second limiting rod is threadedly connected with the second mounting plate, and the distance between the second limiting rod and the first limiting rod can be adjusted.

[0030] According to a second aspect of the embodiments of the present application, a lifting tool is provided, comprising the floating mechanism as described above.

[0031] One technical effect of the embodiments of the present application is that the first rotating assembly and the second rotating assembly can provide the second mounting assembly with at least two degrees of freedom of floating, and since the second mounting assembly is connected to the grabbing assembly, the grabbing assembly can float in at least two directions to adapt to the angle deviation of the material, thereby facilitating the grabbing of the material.

[0032] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0034] Figure 1 is a structural schematic view of the floating mechanism in the embodiments of the present application;

[0035] Figure 2 is a structural schematic view of the floating mechanism in the embodiments of the present application;

[0036] Figure 3 is a structural schematic view of the floating mechanism in the embodiments of the present application;

[0037] Figure 4 is a sectional view of the floating mechanism in the embodiments of the present application;

[0038] Figure 5 is a partial enlarged view of A in Figure 4

[0039] Reference signs: first mounting assembly 1; first mounting plate 11; first through hole 111; third mounting plate 12; rotating assembly 2; first rotating piece 21; second rotating piece 22; second mounting assembly 3; second mounting plate 31; second through hole 311; third through hole 312; support frame 32; support plate 321; connecting plate 322; mounting hole 3221; connecting part 33; driving assembly 4; abutting part 41; connecting rod 42; detection assembly 43; first limiting rod 5; second limiting rod 6. DETAILED DESCRIPTION

[0040] Various exemplary embodiments of the present application will now be described in detail below with reference to the accompanying drawings. Note that the relative arrangement, numerical expressions, and numerical values of the components and steps set forth in these embodiments are not limiting to the scope of the present application unless otherwise specifically stated.

[0041] ​The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application or its application and uses.

[0042] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and devices can be viewed as part of the specification.

[0043] In all of the compositions and methods shown and discussed herein, any specific values should be interpreted as merely exemplary, and are not intended to be limiting. Thus, other examples of the exemplary embodiments can have different values.

[0044] It should be noted that like reference numerals and letters refer to like items throughout the several views of the drawings and as such, definitions of those items need not be repeated with each instance in which they are discussed.

[0045] Firstly, the first direction, the second direction and the third direction mentioned in the embodiments of the present application refer to the directions marked in the drawings. Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The first direction, the second direction and the third direction are perpendicular to each other.

[0046] As shown in Figures 1-5 , according to a first aspect of the embodiments of the present application, a floating mechanism is provided, which comprises a first mounting assembly 1, a rotating assembly 2 and a second mounting assembly 3; the rotating assembly 2 comprises a first rotating member 21 and a second rotating member 22, the first rotating member 21 is rotationally connected with the first mounting assembly 1, the second rotating member 22 is rotationally connected with the first rotating member 21, the rotating direction of the first rotating member 21 is different from the rotating direction of the second rotating member 22; the second mounting assembly 3 is connected with the second rotating member 22.

[0047] The floating mechanism of the present application is suitable to be arranged in a lifting appliance to provide an angle deviation for a grabbing assembly of the lifting appliance, so that the grabbing assembly of the lifting appliance can adapt to the angle deviation of the material, accurately position and grab the material.

[0048] As shown in Figures 1-5 , the floating mechanism comprises a first mounting assembly 1, a rotating mechanism and a second mounting assembly 3; wherein the first mounting assembly 1 is used to be connected with a driving assembly 4 of the lifting appliance, and the second mounting assembly 3 is used to be connected with a grabbing assembly of the lifting appliance.

[0049] Further, the rotating assembly 2 comprises a first rotating part 21 and a second rotating part 22; the first rotating part 21 is rotatably connected with the first mounting assembly 1, the second rotating part 22 is rotatably connected with the first rotating part 21, the second rotating part 22 is connected with the second mounting assembly 3, and the rotating direction of the first rotating part 21 is different from the rotating direction of the second rotating part 22. Therefore, the first rotating assembly 2 and the second rotating assembly 2 can provide the second mounting assembly 3 with floating in at least two degrees of freedom, that is, the rotating direction of the first rotating part 21 and the rotating direction of the second rotating part 22, and since the second mounting assembly 3 is connected with the grabbing assembly, the grabbing assembly connected with the second mounting assembly 3 can float in at least two directions, so that the grabbing assembly connected with the second mounting assembly 3 can adapt to the angle deviation of the material, so as to facilitate the grabbing of the material.

[0050] In a specific embodiment, the first mounting assembly 1 comprises a first mounting plate 11, the first mounting plate 11 is provided with a first through hole 111 in the second direction; the first rotating part 21 comprises a spherical bearing, the outer ring of the spherical bearing is connected with the first through hole 111; the second rotating part 22 comprises a rotating shaft, the rotating shaft is connected with the inner ring of the spherical bearing, and the rotating shaft can rotate around the first direction and / or the second direction.

[0051] As shown in Figure 2 , Figure 4 and Figure 5 , the first mounting assembly 1 comprises a first mounting plate 11, the first mounting plate 11 is provided with a first through hole 111, and the axial direction of the first through hole 111 and the thickness direction of the second mounting plate 31 are both the second direction.

[0052] Further, the first rotating part 21 comprises a spherical bearing, the spherical bearing comprises an inner ring and an outer ring, the surface of the inner ring is spherical, the inner ring is arranged inside the outer ring and can rotate relative to the outer ring; wherein the outer ring of the spherical bearing is arranged in the first through hole 111, the outer ring of the spherical bearing can be rotatably connected with the first through hole 111, the spherical bearing can rotate around the second direction, or the outer ring of the spherical bearing is fixedly connected with the first through hole 111, and the outer ring of the spherical bearing cannot rotate relative to the first through hole 111; the second rotating part 22 comprises a rotating shaft, the rotating shaft is connected with the inner ring of the spherical bearing, since the inner ring of the spherical bearing can rotate around the outer ring, specifically, the surface of the inner ring is spherical, so the inner ring of the spherical bearing can rotate around the first direction and / or the second direction relative to the outer ring, and therefore the rotating shaft can rotate around the first direction and / or the second direction. In this embodiment, the spherical bearing and the rotating shaft can provide the second mounting assembly 3 with floating in two degrees of freedom, and the structure is simple, easy to install and low in cost.

[0053] In another specific embodiment, the first mounting assembly 1 comprises a first mounting plate 11, the first mounting plate 11 is provided with a first through hole 111 in the second direction; the first rotating part 21 comprises a bearing, the surface of the outer ring of the bearing is spherical, the outer ring of the bearing is rotationally connected with the first through hole 111, and the bearing can rotate in the first direction; the second rotating part 22 comprises a rotating shaft, the rotating shaft is connected with the inner ring of the bearing, and the rotating shaft can rotate in the second direction.

[0054] As shown in Figure 2 , Figure 4 and Figure 5 , the first mounting assembly 1 comprises a first mounting plate 11, the first mounting plate 11 is provided with a first through hole 111, the axial direction of the first through hole 111 and the thickness direction of the second mounting plate 31 are both the second direction.

[0055] Further, the first rotating part 21 comprises a bearing, the bearing comprises an inner ring and an outer ring, the surface of the outer ring is spherical, the inner ring is arranged inside the outer ring and can rotate relative to the outer ring; wherein the outer ring of the bearing is arranged in the first through hole 111, the outer ring of the bearing is rotationally connected with the first through hole 111, and the bearing can rotate in the first direction; the second rotating part 22 comprises a rotating shaft, the rotating shaft is connected with the inner ring of the bearing, since the inner ring of the bearing can rotate around the outer ring, the rotating shaft can rotate around the outer ring of the bearing, and the rotating shaft can rotate in the second direction, and the rotating shaft is connected with the second mounting assembly 3. In this embodiment, the bearing and the rotating shaft can make the two degrees of freedom of the second mounting assembly 3 float, and the structure is simple, easy to install and low in cost.

[0056] In an alternative embodiment, the second mounting assembly 3 comprises a second mounting plate 31 and a support frame 32; the second mounting plate 31 is provided with a second through hole 311 in the third direction; the support frame 32 comprises a support plate 321 and a connecting plate 322, the support plate 321 is located below the second mounting plate 31 in the third direction, and the connecting plate 322 connects the second rotating part 22 with the support plate 321 through the second through hole 311.

[0057] As shown in Figure 4 , the second mounting assembly 3 comprises a second mounting plate 31 and a support frame 32; wherein the second mounting plate 31 is used to be connected with the grabbing assembly of the spreader, specifically, a plurality of connecting parts 33 are arranged on the side of the second mounting plate 31 away from the first mounting assembly 1, and the connecting parts 33 are used to be connected with the grabbing assembly.

[0058] Further, as shown in Figure 4As shown, the second mounting plate 31 is provided with a second through hole 311 in the second direction, and the second through hole 311 is in the same direction as the third direction; the support frame 32 comprises a support plate 321 and a connecting plate 322, the support plate 321 is below the second mounting plate 31 in the third direction, and the support plate 321 can abut or separate from the second mounting plate 31; in the third direction, one end of the connecting plate 322 is above the second mounting plate 31, and the other end of the connecting plate 322 is below the second mounting plate 31, that is, the other end of the connecting plate 322 passes through the second through hole 311 and is connected with the support plate 321, and the second rotating part 22 is connected with the connecting plate 322.

[0059] In an alternative embodiment, as shown in Figure 3 As shown, the connecting plate 322 is provided with a mounting hole 3221 in the second direction, and part of the second rotating part 22 is embedded in the mounting hole 3221; in particular, the connecting plate 322 is provided with a mounting hole 3221 in the second direction, and the mounting hole 3221 is in the same direction as the second direction, and the second rotating part 22 comprises a rotating shaft, and the end of the rotating shaft is embedded in the mounting hole 3221, so as to realize the connection between the second rotating part 22 and the second mounting assembly 3.

[0060] Preferably, the connecting plate 322 comprises two, namely a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate are arranged in the second direction, and the second rotating part 22 is located between the first connecting plate and the second connecting plate, that is, one end of the rotating shaft is embedded in the mounting hole 3221 of the first connecting plate, and the other end of the rotating shaft is embedded in the mounting hole 3221 of the second connecting plate. By arranging the first connecting plate and the second connecting plate, the connection stability between the second rotating part 22 and the second mounting assembly 3 can be improved.

[0061] In an alternative embodiment, as shown in Figure 1 and Figure 2 As shown, the floating mechanism comprises a driving assembly 4 and an abutting portion 41, the driving end of the driving assembly 4 is connected with the abutting portion 41, and the driving assembly 4 can drive the abutting portion 41 to move in the third direction to the direction close to the second mounting plate 31 to abut against the second mounting plate 31; or, the driving assembly 4 can drive the abutting portion 41 to move in the third direction to the direction away from the second mounting plate 31.

[0062] Specifically, since the support plate 321 is located below the second mounting plate 31, when the driving assembly 4 drives the abutting portion 41 to move along the third direction towards the support plate 321, the abutting portion 41 abuts against the second mounting plate 31, under the action of the abutting portion 41, the rotating assembly 2 can no longer make the second mounting plate 31 float in the first direction and / or the second direction, so the grabbing assembly connected with the second mounting plate 31 can no longer float; when the driving assembly 4 drives the abutting portion 41 to move along the third direction away from the second mounting plate 31, there is a gap between the abutting portion 41 and the second mounting plate 31, in this state, the rotating assembly 2 can provide the second mounting plate 31 with the floating in the first direction and / or the second direction, so the grabbing assembly connected with the second mounting plate 31 can also float. In this embodiment, by setting the driving assembly 4 and the abutting portion 41, the floating of the floating mechanism can be adjusted, and the flexibility is higher.

[0063] In a specific embodiment, as shown in Figure 1 the second mounting plate 31 is provided with a third through hole 312 along the third direction; the floating mechanism further comprises a connecting rod 42 and a detection assembly 43, one end of the connecting rod 42 is connected with the abutting portion 41, the other end of the connecting rod 42 passes through the third through hole 312, and the detection assembly 43 is arranged at the end of the connecting rod 42 away from the abutting portion 41.

[0064] As shown in Figure 1 the second mounting plate 31 is provided with a third through hole 312, and the third through hole 312 is in the same axial direction as the third direction.

[0065] The floating mechanism further comprises a connecting rod 42 and a detection assembly 43; the driving assembly 4 is arranged on the first mounting assembly 1, and specifically, the first mounting assembly 1 further comprises a third mounting plate 12, the first mounting plate 11 is connected with the third mounting plate 12, the third mounting plate 12 is arranged in the third direction away from the second mounting plate 31, the first mounting plate 11 is located between the third mounting plate 12 and the second mounting plate 31, the driving assembly 4 is arranged at one end of the third mounting plate 12 towards the second mounting plate 31, one end of the connecting rod 42 is connected with the abutting portion 41, the other end of the connecting rod 42 passes through the third through hole 312 and is located below the second mounting plate 31, and the detection assembly 43 is arranged at the end of the connecting rod 42 away from the abutting portion 41, that is, below the second mounting plate 31; when the driving assembly 4 drives the abutting portion 41 to move along the third direction, the connecting rod 42 also moves, the detection assembly 43 is arranged on the connecting rod 42, so the detection assembly 43 also moves, and therefore the detection assembly 43 can detect the position between the abutting portion 41 and the second mounting plate 31.

[0066] The detection assembly 43 can adopt a distance measuring sensor or a displacement sensor.

[0067] The driving assembly 4 can be a cylinder, a hydraulic cylinder or a linear motor.

[0068] In an alternative embodiment, the diameter of the connecting rod 42 is smaller than the diameter of the third through hole 312; in particular, the diameter of the connecting rod 42 is smaller than the diameter of the third through hole 312, so that there is a gap between the outer wall of the connecting rod 42 and the inner wall of the third through hole 312, so that when the second mounting plate 31 abuts against the supporting plate 321, the second mounting plate 31 has a certain amount of rotation, thereby avoiding the influence of the connecting rod 42 on the rotation of the second mounting plate 31.

[0069] In another specific embodiment, the driving end of the driving assembly 4 is rotationally connected with the second mounting plate 31, and the second mounting plate 31 has a certain amount of rotation with the driving end of the driving assembly 4, thereby avoiding the influence of the driving assembly 4 on the rotation of the second mounting plate 31.

[0070] In an alternative embodiment, as shown in Figure 4 the first mounting assembly 1 is provided with a first limiting rod 5 at one end thereof facing the second mounting assembly 3, and the second mounting plate 31 is provided with a second limiting rod 6 at one end thereof facing the first mounting assembly 1, and the projection of the first limiting rod 5 and the second limiting rod 6 in the third direction coincides; in particular, the first limiting rod 5 is provided at one end of the third mounting plate 12 facing the second mounting plate 31; when the second mounting plate 31 rotates under the action of the rotating assembly 2, the first limiting rod 5 and the second limiting rod 5 have a certain gap therebetween, thereby limiting the rotation angle of the second mounting plate 31, and limiting the rotation angle of the grabbing assembly connected with the second mounting plate 31.

[0071] In an alternative embodiment, the first limiting rod 5 is threadedly connected with the first mounting assembly 1, so as to adjust the distance between the first limiting rod 5 and the second limiting rod 6; and / or the second limiting rod 6 is threadedly connected with the second mounting plate 31, so as to adjust the distance between the second limiting rod 6 and the first limiting rod 5.

[0072] In a specific embodiment, the first limiting rod 5 is threadedly connected with the first mounting assembly 1.

[0073] In another specific embodiment, the second limiting rod 6 is threadedly connected with the second mounting plate 31.

[0074] In another specific embodiment, as shown in Figure 4As shown, the first limiting rod 5 is threadedly connected with the first mounting assembly 1, and the second limiting rod 6 is threadedly connected with the second mounting plate 31. In this embodiment, the first limiting rod 5 is threadedly connected with the third mounting plate 12, and the second limiting rod 6 is threadedly connected with the second mounting plate 31, so that the distance between the first limiting rod 5 and the second limiting rod 6 can be adjusted as needed, and the rotation angle of the second mounting plate 31 can be adjusted.

[0075] According to a second aspect of the embodiments of the present application, a lifting device is provided, which comprises the floating mechanism described above.

[0076] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, but not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A floating mechanism, characterized by, The floating mechanism comprises: a first mounting assembly; a rotating assembly, the rotating assembly comprising a first rotating member and a second rotating member, the first rotating member being rotatably connected with the first mounting assembly, the second rotating member being rotatably connected with the first rotating member, the first rotating member having a different rotating direction from the second rotating member; a second mounting assembly, the second mounting assembly being connected with the second rotating member.

2. The float mechanism of claim 1, wherein, The first mounting assembly comprises a first mounting plate, the first mounting plate being provided with a first through hole in a second direction; The first rotating member comprises a spherical bearing, an outer ring of the spherical bearing being connected with the first through hole; The second rotating member comprises a rotating shaft, the rotating shaft being connected with an inner ring of the spherical bearing, the rotating shaft being rotatable in a first direction and / or the second direction.

3. The float mechanism of claim 1, wherein, The first mounting assembly comprises a first mounting plate, the first mounting plate being provided with a first through hole in a second direction; The first rotating member comprises a bearing, a surface of an outer ring of the bearing being spherical, the outer ring of the bearing being rotatably connected with the first through hole, the bearing being rotatable in a first direction; The second rotating member comprises a rotating shaft, the rotating shaft being connected with an inner ring of the bearing, the rotating shaft being rotatable in a second direction.

4. The float mechanism of claim 1, wherein The second mounting assembly comprises: a second mounting plate, the second mounting plate being provided with a second through hole in a third direction; a support frame, the support frame comprising a support plate and a connecting plate, the support plate being located below the second mounting plate in the third direction, the connecting plate connecting the second rotating member with the support plate through the second through hole.

5. The float mechanism of claim 4, wherein, The connecting plate is provided with a mounting hole in the second direction, the second rotating member being partially embedded in the mounting hole.

6. The float mechanism of claim 4, wherein, The floating mechanism further comprises a driving assembly and an abutting portion, a driving end of the driving assembly being connected with the abutting portion; The driving assembly is capable of driving the abutting portion to move in a third direction towards the second mounting plate to abut against the second mounting plate; or The driving assembly is capable of driving the abutting portion to move in the third direction away from the second mounting plate.

7. The float mechanism of claim 6, wherein, The second mounting plate is provided with a third through hole in the third direction; The floating mechanism further comprises a connecting rod and a detection assembly, one end of the connecting rod being connected with the abutting portion, the other end of the connecting rod being inserted into the third through hole, the detection assembly being arranged at the end of the connecting rod away from the abutting portion.

8. The float mechanism of claim 7, wherein, The diameter of the connecting rod is smaller than the diameter of the third through hole.

9. The float mechanism of claim 4, wherein, An end of the first mounting assembly towards the second mounting assembly is provided with a first limiting rod, an end of the second mounting plate towards the first mounting assembly is provided with a second limiting rod, projections of the first limiting rod and the second limiting rod in the third direction coincide.

10. The float mechanism of claim 9, wherein, The first limiting rod is threadedly connected with the first mounting assembly, the distance between the first limiting rod and the second limiting rod being adjustable; and / or The second limiting rod is threadedly connected with the second mounting plate, the distance between the second limiting rod and the first limiting rod being adjustable.

11. A spreader, characterized in that The floating mechanism comprises any one of claims 1-10.

Images