Cross-shaped connecting joint, A-type boom assembly and hoisting equipment
By setting a detachable extension frame in the cross connection byte, the problem of poor force transmission effect when the main arm length of the A-type arm frame changes, and effective force transmission and material savings are achieved under different main arm lengths.
Patent Information
- Application Number
- CN202422263010.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-14
AI Technical Summary
When the length of the main arm of the existing A-type arm is changed, it is difficult to maintain the opposite angle of the two rods in the same straight line, which affects the force transmission effect.
A cross connection byte is designed, including four connecting frames and a removable extension frame. By adding or replacing the extension frame at the other end of the connecting frame, the relative connecting frame is kept in the same line, thereby improving the force transmission effect.
When adjusting the main arm length, the alignment of the connecting frame can be effectively maintained, the force transmission effect can be improved, material waste can be reduced, and the needs of different main arm lengths can be adapted to the needs of different main arm lengths.
Smart Images
Figure CN223073733U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lifting equipment, in particular to a cross joint, an A-type boom assembly and a lifting equipment. Background Art
[0002] To meet the lifting requirements of lifting equipment in projects such as petroleum, petrochemical, nuclear power, wind power, and steel, the lifting and hoisting equipment has developed rapidly. There are more and more types of lifting equipment, and the structure is becoming more and more complex. The newly emerged split A-type boom structure has a larger cross-section and better lifting performance compared with the traditional boom structure, and has higher requirements for the structure.
[0003] For the existing cross joint of the A-type boom, the length is adjusted by a telescopic tube to adapt to the change of the main boom length. Since it is hinged at one point in the middle and only two rods on one side are adjustable, the angles of the opposite two rods are difficult to maintain on the same straight line, which will affect the force transmission effect of the cross joint.
[0004] Therefore, how to ensure the force transmission effect of the cross joint when the length of the main boom of the A-type boom changes is an urgent problem to be solved in the industry. Summary of the Utility Model
[0005] The utility model provides a cross joint, an A-type boom assembly and a lifting equipment, so as to solve the defect of poor force transmission effect existing in the cross joint in the prior art.
[0006] The first aspect of the utility model provides a cross joint, comprising:
[0007] A cross joint body, the cross joint body comprising four connecting frames and a connecting component; the four connecting frames are arranged in a cross shape around the connecting component, and one end of each connecting frame is connected to the connecting component;
[0008] An extension frame, one end of the extension frame is detachably connected to the other end of the connecting frame, and the other end of the extension frame is used for detachably connecting to the main boom of the A-type boom.
[0009] According to the cross joint provided by the utility model, the connecting frame comprises:
[0010] Two first cross bars, along the first direction, the two first cross bars are parallel and spaced from each other, and the two first cross bars are respectively connected to the two ends of the connecting component;
[0011] A first reinforcing member, the two ends of the first reinforcing member are respectively detachably connected to the two first cross bars.
[0012] According to the cross joint provided by the utility model, the connecting component comprises:
[0013] Two connecting members are arranged at intervals along the first direction, and the two connecting members are respectively connected to the two first cross bars of the connecting frame.
[0014] According to the cross joint provided by the present utility model, the connecting member includes four connecting parts; the four connecting parts are arranged in a cross shape, and the four connecting parts are respectively connected to the four first cross bars on the same side.
[0015] According to the cross joint provided by the present utility model, the extension frame includes:
[0016] Two second cross bars are arranged parallel to and at intervals from each other along the first direction. One ends of the two second cross bars are respectively detachably connected to the ends of the two first cross bars of the same connecting frame away from the connecting component, and the other ends of the two second cross bars are used for detachable connection with the main arm.
[0017] According to the cross joint provided by the present utility model, the radial dimension of the second cross bar is equal to the radial dimension of the first cross bar.
[0018] According to the cross joint provided by the present utility model, the extension frame further includes:
[0019] A second reinforcing member, and two ends of the second reinforcing member are respectively detachably connected to the two second cross bars.
[0020] According to the cross joint provided by the present utility model, the connecting frame is detachably connected to the connecting component.
[0021] In the second aspect of the present utility model, an A-type boom assembly is provided, which includes the cross joint described in any one of the above.
[0022] In the third aspect of the present utility model, a lifting device is provided, which includes the cross joint described in any one of the above, or includes the A-type boom assembly described above
[0023] For the cross joint provided by the present utility model, by providing a connecting component connected to four connecting frames and an extension frame detachably connected between the connecting frame and the A-type boom, when the length of the main boom of the A-type boom is adjusted, the relative connecting frames can be kept as straight as possible by adding or reducing the extension frame at the other end of the connecting frame or by replacing the extension frame, thereby improving the force transmission effect of the cross joint and solving the problem of poor force transmission effect of the cross joint in the prior art.
[0024] The A-type boom assembly and the lifting device provided by the present utility model include the above cross joint, and thus at least have the above advantages. Description of the Drawings
[0025] To more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0026] Figure 1 It is a schematic three-dimensional structure diagram of a cross joint provided by the present utility model.
[0027] Figure 2 It is a schematic three-dimensional structure diagram of a connection assembly of the cross joint provided by the present utility model.
[0028] Figure 3 It is Figure 1 An enlarged structure diagram of part A in
[0029] Figure 4 It is Figure 1 An enlarged structure diagram of part B in
[0030] Figure 5 It is a schematic structure diagram of a type A boom assembly provided by the present utility model.
[0031] Reference numerals:
[0032] 10. Cross joint; 20. Type A boom;
[0033] 100. Cross joint body; 110. Connecting frame; 120. Connection assembly; 111. First cross bar; 112. First reinforcing member; 121. Connecting member; 101. First metal plate; 102. First connecting head; 103. First mounting part; 104. First reinforcing pipe; 105. Second connecting head; 106. Connecting part;
[0034] 200. Extension frame; 210. Second cross bar; 220. Second reinforcing member; 211. Second metal plate; 212. Third connecting head; 213. Second mounting part; 221. Second reinforcing pipe; 222. Fourth connecting head. Detailed implementation manners
[0035] To make the objectives, technical solutions, and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model in conjunction with the drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.
[0036] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0037] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0038] In the embodiments of the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0039] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0040] As Figures 1 to 4As shown, the present utility model provides a cross joint 10. The cross joint 10 includes a cross joint body 100 and an extension bracket 200. The cross joint body 100 includes four connecting brackets 110 and a connecting component 120; the four connecting brackets 110 are arranged in a cross around the connecting component 120, and one end of the connecting bracket 110 is connected to the connecting component 120. One end of the extension bracket 200 is detachably connected to the other end of the connecting bracket 110, and the other end of the extension bracket 200 is used for detachably connecting to the main arm of the A-type boom 20.
[0041] In this embodiment, by providing the connecting component 120 connected to the four connecting brackets 110 and the extension bracket 200 detachably connected between the connecting bracket 110 and the A-type boom 20, when the length of the main arm of the A-type boom 20 is adjusted, the extension bracket 200 can be increased or decreased at the other end of the connecting bracket 110, or the extension bracket 200 can be replaced, so that the oppositely arranged connecting brackets 110 can be kept as much as possible in the same straight line, thereby improving the force transmission effect of the cross joint 10 and solving the problem of poor force transmission effect existing in the cross joint 10 in the prior art.
[0042] It can be understood that the cross joint 10 includes multiple series of extension brackets 200, and the lengths of the extension brackets 200 in each series are different. The lengths of the extension brackets 200 in the same series are equal. According to the adjustment of the main arm length, an appropriate series of extension brackets 200 is selected so that the oppositely arranged connecting brackets 110 can be kept as much as possible in the same straight line.
[0043] Furthermore, each series includes at least two extension brackets 200, and the lengths of the extension brackets 200 in the same series are equal.
[0044] In some embodiments, the connecting bracket 110 is fixedly connected to the connecting component 120. For example, the connecting bracket 110 and the connecting component 120 are connected together by welding, which can improve the assembly efficiency.
[0045] Such as Figure 1As shown, in some other embodiments, the connecting frame 110 is detachably connected to the connecting component 120. For example, the connecting frame 110 and the connecting component 120 are detachably connected by a pin shaft. When installing the cross joint 10, the installation angle of the connecting frame 110 can be adjusted according to the angle of the main boom first. At this time, the opposite connecting frames 110 are generally in the same straight line, and then the connecting frame 110 and the connecting component 120 are detachably connected together by a pin shaft to prevent relative movement between the connecting frame 110 and the connecting component 120. When the angle of the main boom changes, the pin shaft can be removed, the installation angle of the connecting frame 110 can be adjusted, and finally the adjusted connecting frame 110 and the connecting component 120 are detachably connected together by a pin shaft, so that the cross joint 10 can still be applicable to the A-type boom 20, which can improve the applicable range of the cross joint 10. In addition, detachably connecting the connecting frame 110 and the connecting component 120 can also solve the problem that the transportation size limits the component size.
[0046] As Figure 1 shown, in some embodiments, the connecting frame 110 includes two first cross bars 111 and a first reinforcing member 112. Along the first direction, the two first cross bars 111 are parallel and spaced apart from each other, and the two first cross bars 111 are respectively connected to both ends of the connecting component 120; both ends of the first reinforcing member 112 are detachably connected to the two first cross bars 111 respectively. Specifically, the two first cross bars 111 are respectively detachably connected to both ends of the connecting component 120 by a pin shaft, and both ends of the first reinforcing member 112 are respectively detachably connected to the two first cross bars 111 by a pin shaft. By detachably connecting the first reinforcing member 112 and the first cross bar 111, the problem that the transportation size limits the component size can be solved. By providing the first reinforcing member 112, the strength of the connecting frame 110 can be improved.
[0047] It should be noted that the first direction can be the vertical direction, as Figure 1 shown. It can also be the horizontal direction.
[0048] Furthermore, the first cross bar 111 includes two first metal plates 101 and two first connectors 102; the two first metal plates 101 are arranged parallel and spaced apart from each other along the first direction; one end of the two first metal plates 101 is detachably connected to the connecting component 120 through a first connector 102, and the other end of the two first metal plates 101 can be detachably connected to the extension frame 200 through another first connector 102. Compared with the solution of using a pipe as the main part of the first cross bar 111, in this embodiment, a plate is used as the main part of the first cross bar 111, which can save materials and reduce material costs. In the actual production process, the length of the first cross bar 111 is relatively long. In order to adapt to the length of the first cross bar 111, pipes usually need to be processed separately. Therefore, using plates can save the pipe processing cost.
[0049] Preferably, the metal plate is a steel plate.
[0050] Preferably, the first connector 102 and the metal rod can be connected by welding.
[0051] Furthermore, a first mounting portion 103 is provided on the side surface of the first cross bar 111; the first reinforcing member 112 includes a first reinforcing pipe 104 and two second connectors 105; the first reinforcing pipe 104 is a pipe, and since the length of the first reinforcing member 112 is short, existing standard pipes can meet the requirements. Both ends of the first reinforcing pipe 104 are detachably connected to the first mounting portions 103 of the two first cross bars 111 through the two second connectors 105 respectively.
[0052] It can be understood that the first reinforcing member 112 can be arranged obliquely with respect to the first cross bar 111 or perpendicular to the first cross bar 111.
[0053] In some embodiments, the connecting assembly 120 includes a connecting member; the central axis of the connecting member is parallel to the first direction, and the upper end and the lower end of the connecting member are respectively detachably connected to the two first cross bars 111 of the same connecting frame 110. Specifically, the upper end of the connecting member can be detachably connected to the four first cross bars 111 through pins respectively, and the four first cross bars are arranged in a cross shape around the central axis of the connecting member. The lower end of the connecting member can be detachably connected to the remaining four first cross bars 111 through pins respectively, and the remaining four first cross bars 111 are arranged in a cross shape around the central axis of the connecting member.
[0054] As Figure 1 and Figure 2 shown, in some other embodiments, the connecting assembly 120 includes two connecting members 121; along the first direction, the two connecting members 121 are arranged at intervals, and the two connecting members 121 are respectively connected to the two first cross bars 111 of the connecting frame 110. Specifically, each connecting member 121 is detachably connected to the four first cross bars 111. The four first cross bars 111 connected to the same connecting member 121 are arranged in a cross shape. By designing the connecting assembly 120 into two separate connecting members 121, the weight of the cross joint 10 can be reduced.
[0055] Further, the connecting member 121 includes four connecting portions 106; the four connecting portions 106 are arranged in a cross shape, and the four connecting portions 106 are respectively connected to four first cross bars 111 on the same side. Specifically, a first mounting hole is formed in the connecting portion 106 in the vertical direction, and a second mounting hole is formed in the first cross bar 111 in the vertical direction. By installing a pin shaft in the first mounting hole and the second mounting hole, the purpose of detachably connecting the connecting member 121 and the first cross bar 111 is achieved. By providing four connecting portions 106 arranged in a cross shape, and the four connecting portions 106 are connected to the four first cross bars 111, a mounting foundation can be provided for the first cross bar 111.
[0056] As Figure 1 shown, in some embodiments, the extension frame 200 includes two second cross bars 210; along the first direction, the two second cross bars 210 are parallel and spaced apart from each other, one end of the second cross bar 210 is detachably connected to one end of the first cross bar 111 away from the connecting assembly 120, and the other end of the second cross bar 210 is used for detachably connecting to the main arm. By providing the second cross bar 210, the first cross bar 111 can be extended, so that the cross connection joint 10 is applicable to the A-type boom 20 with different main arm lengths, and as much as possible to ensure that the two connection frames 110 opposite to each other on the cross connection joint body 100 are in the same straight line, improving the force transmission effect.
[0057] As Figure 1 shown, preferably, the structure of the second cross bar 210 is the same as that of the first cross bar 111. Specifically, the second cross bar 210 includes two second metal plates 211 and two third connection heads 212; the two second metal plates 211 are parallel and spaced apart from each other along the first direction; one end of the two second metal plates 211 is detachably connected to the first connection head 102 of the first metal plate 101 away from the connecting assembly 120 through a third connection head 212, and the other end of the two second metal plates 211 can be detachably connected to the main arm through another third connection head 212.
[0058] For the cross connection joint of the existing A-type boom, the length is adjusted by the telescopic tube to adapt to the change of the main arm length. The overall strength of the cross connection joint depends on the strength of the thinnest part of the telescopic tube. Therefore, for other thicker rod bodies, there is strength waste and material waste.
[0059] Further, the radial dimension of the second cross bar 210 is equal to that of the first cross bar 111. In other words, the width of the second cross bar 210 is equal to the width of the first cross bar 111, which can make the cross connection joint 10 as small as possible under the required dimensions, with good strength and reduced material waste.
[0060] As Figure 1As shown, further, the extension frame 200 further includes a second reinforcement member 220; both ends of the second reinforcement member 220 are detachably connected to two second cross bars 210 respectively. Specifically, both ends of the second reinforcement member 220 are detachably connected to the sides of the two second cross bars 210 through a pin shaft. By providing the second reinforcement member 220, the strength of the extension frame 200 can be ensured, so as to ensure that the strength of the entire cross joint 10 meets the design requirements. By detachably connecting the second reinforcement member 220 to the second cross bar 210, the problem that the transportation size limits the member size can be solved.
[0061] Preferably, the second reinforcement member 220 has the same structure as the first reinforcement member 112. Specifically, a second installation portion 213 is provided on the side of the second cross bar 210; the second reinforcement member 220 includes a second reinforcement pipe 221 and two fourth connection heads 222; both ends of the second reinforcement pipe 221 are detachably connected to the second installation portions 213 of the two second cross bars 210 through the two fourth connection heads 222 respectively.
[0062] All in all, the length of the cross joint 10 in this embodiment is adjustable, and the opposite connecting frames 110 can be kept on the same straight line as much as possible, which can improve the force transmission effect. The first cross bar 111 and the second cross bar 210 have the same width, and under the condition of determined strength, material waste can be reduced. Designing the cross joint 10 into a detachable structure can meet the transportation requirements and solve the problem that the transportation size limits the product size.
[0063] As Figure 5 shown, in a specific embodiment of the second aspect of the present utility model, an A-type boom assembly is provided. The A-type boom assembly includes the cross joint 10 of any of the above embodiments.
[0064] Since this embodiment includes the cross joint 10 of any of the above embodiments, it has at least the above advantages.
[0065] Further, the A-type boom assembly further includes an A-type boom 20; the cross joint 10 is located between the two main booms of the A-type boom 20, and both ends of the extension frame 200 of the cross joint 10 facing the main boom are detachably connected to the main boom. Specifically, the extension frame 200 is detachably connected to the main boom through a pin shaft.
[0066] A specific embodiment of the third aspect of the present utility model provides a lifting device. The lifting device includes the cross joint 10 of any of the above embodiments or the A-type boom assembly in any of the above embodiments. Therefore, the lifting device in this embodiment has at least the above advantages, which will not be elaborated here.
[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A cross joint, characterized in that, Comprising: A cross joint body (100), the cross joint body (100) comprising four connecting brackets (110) and a connecting component (120); the four connecting brackets (110) are arranged in a cross shape around the connecting component (120), and one end of each connecting bracket (110) is connected to the connecting component (120); An extension bracket (200), one end of the extension bracket (200) is detachably connected to the other end of the connecting bracket (110), and the other end of the extension bracket (200) is for detachably connecting to the main arm of the A-type boom (20).
2. The cross-connecting joint according to claim 1, characterized in that, The connecting bracket (110) comprises: Two first cross bars (111), along a first direction, the two first cross bars (111) are parallel and spaced apart from each other, and the two first cross bars (111) are respectively connected to both ends of the connecting component (120); A first reinforcing member (112), both ends of the first reinforcing member (112) are detachably connected to the two first cross bars (111) respectively.
3. The cross joint according to claim 2, characterized in that, The connecting component (120) comprises: Two connecting members (121), along the first direction, the two connecting members (121) are spaced apart, and the two connecting members (121) are respectively connected to the two first cross bars (111) of the connecting bracket (110).
4. The cross joint according to claim 3, characterized in that, The connecting member (121) comprises four connecting parts (106); the four connecting parts (106) are arranged in a cross shape, and the four connecting parts (106) are respectively connected to the four first cross bars (111) on the same side.
5. The cross joint according to claim 2, characterized in that, The extension bracket (200) comprises: Two second cross bars (210), along the first direction, the two second cross bars (210) are parallel and spaced apart from each other, one end of each of the two second cross bars (210) is detachably connected to the other end of the two first cross bars (111) of the same connecting bracket (110) away from the connecting component (120), and the other end of the two second cross bars (210) is for detachably connecting to the main arm.
6. The cross joint according to claim 5, characterized in that, The radial dimension of the second cross bar (210) is equal to the radial dimension of the first cross bar (111).
7. The cross joint (10) according to claim 5, characterized in that, The extension bracket (200) further comprises: A second reinforcing member (220), both ends of the second reinforcing member (220) are detachably connected to the two second cross bars (210) respectively.
8. The cross joint according to any one of claims 1 to 7, characterized in that, The connecting bracket (110) is detachably connected to the connecting component (120).
9. An A-type boom assembly, characterized in that, Comprising the cross joint (10) according to any one of claims 1 to 8.
10. A lifting device, characterized in that, Comprising the cross joint (10) according to any one of claims 1 to 8, or comprising the A-type boom assembly according to claim 9.