Transition mounting plate, telescopic boom and engineering machine
Patent Information
- Application Number
- CN202522366751.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-07
AI Technical Summary
[0004]本申请的目的是提供一种过渡安装板、伸缩臂架及工程机械，用于解决现有拖链结构与位于末节的伸缩节臂之间的存在拆装难度大，拆装效率低的问题
本申请提供的过渡安装板通过第一安装侧板上的第一安装孔将第一安装侧板与位于末节的伸缩节臂的臂尾连接，并由延长板体实现延长作用，使得第二安装侧板更加靠近基本臂的臂尾，再通过第二安装侧板上的第二安装孔实现与拖链装置的拖链导向架的连接。相比于传统直接将拖链导向架与位于末节的伸缩节臂的臂尾连接方案，本申请利用过渡安装板的延长作用使拖链导向架的安装位向基本臂的臂尾靠近，在进行拖链导向架的拆装时，可以使用普通的通用工具伸入进行拆装作业，安装位更靠近基本臂的臂尾操作视野更好，如此方便操作人员进行拖链装置的拆装工作，从而有效解决现有安装拖链装置位置内部空间小且较为狭长拆装难度大的问题。并且第二安装侧板的宽度小于第一安装侧板的宽度，可以进一步避免第二安装侧板对第一安装侧板的遮挡，进而实现避让，便于过渡安装板自身的拆装更换。
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Abstract
Description
Technical Field
[0001] This application belongs to the field of engineering machinery technology, specifically relating to a transition mounting plate, a telescopic boom, and engineering machinery. Background Technology
[0002] To avoid the aging and damage of external cable chain devices, existing telescopic booms typically use an internal cable chain structure. In this internal structure, one end of the cable chain guide is directly mounted on the last telescopic arm section, while the movable cable chain assembly is mounted on the outermost base arm. Consequently, disassembling and assembling the cable chain requires manual intervention: a hand-held tool must be inserted into the base arm from its tail to remove the fasteners connecting the cable chain to the tail of the last telescopic arm section, and then the other connections must be removed.
[0003] However, when the telescopic boom has multiple telescopic sections (such as four-section or five-section booms), the internal space where the cable chain is installed at the tail of the last telescopic section is small and relatively long. During later maintenance and replacement, the line of sight will be affected, and general-purpose tools cannot be used. This makes the installation and removal of the cable chain difficult and affects the efficiency of installation and removal. Utility Model Content
[0004] The purpose of this application is to provide a transition mounting plate, a telescopic boom, and engineering machinery to solve the problems of difficult disassembly and assembly and low efficiency between the existing cable chain structure and the telescopic boom located at the end section.
[0005] To achieve the above objectives, a first aspect of this application provides a transition mounting plate for use with a telescopic boom, the telescopic boom including a base boom and a multi-section telescopic boom and a cable chain device disposed within the base boom, the transition mounting plate including: Extend the plate; A first mounting side plate is disposed at one end of the extension plate and is used to correspond to the arm tail of the telescopic joint arm located at the end section. The first mounting side plate is provided with at least two spaced first mounting holes. The second mounting side plate is disposed at the other end of the extension plate and is used to correspond to the drag chain guide frame of the drag chain device. The second mounting side plate is provided with at least two spaced second mounting holes. The first mounting side plate and the second mounting side plate are aligned and arranged, and along the width direction of the extended plate, the width of the second mounting side plate is smaller than the width of the first mounting side plate.
[0006] As a further improvement to the above technical solution: In some embodiments, the distance between the two first mounting holes is greater than or equal to the width of the second mounting side plate.
[0007] In some embodiments, the first mounting hole is a smooth hole, and the second mounting hole is a threaded hole.
[0008] In some embodiments, the first mounting side plate and the second mounting side plate are welded to the extension plate or are an integral structure.
[0009] In some embodiments, the transition mounting plate further includes a support rib, which is arranged between the first mounting side plate and the second mounting side plate; The supporting stiffeners are welded to the first mounting side plate, the second mounting side plate, and the extension plate, respectively.
[0010] In some embodiments, the middle portion of the extension plate has recesses on both sides that are recessed inward along its width direction to avoidance recesses.
[0011] In some embodiments, the extension plate has a hollowed-out area.
[0012] To achieve the above objectives, a second aspect of this application provides a telescopic boom, including a base boom and a multi-section telescopic boom and a cable chain device disposed within the base boom. The cable chain device includes a movable cable chain assembly and a cable chain guide frame. One end of the movable cable chain assembly is connected to the cable chain guide frame, and the other end is mounted on the base boom. The cable chain guide frame is detachably connected to the tail of the telescopic boom located at the end section via a transition mounting plate provided according to the first aspect above.
[0013] As a further improvement to the above technical solution: In some embodiments, the cable chain guide frame has an extension plate at one end near the tail of the telescopic joint arm located at the end section, and the extension plate has a bent portion at the end away from the cable chain guide frame that cooperates with the second mounting side plate. The bent portion is provided with a third mounting hole corresponding to the second mounting hole.
[0014] To achieve the above objectives, a third aspect of this application provides an engineering machine including a telescopic boom provided according to the second aspect above.
[0015] Compared to existing technologies, the transition mounting plate, telescopic boom, and engineering machinery provided in this application have at least the following beneficial effects: The transition mounting plate provided in this application connects the first mounting side plate to the tail of the telescopic arm located at the end section via a first mounting hole on the first mounting side plate. An extension plate extends the second mounting side plate, bringing it closer to the tail of the base arm. The second mounting side plate then connects to the cable chain guide frame of the cable chain device via a second mounting hole. Compared to the traditional method of directly connecting the cable chain guide frame to the tail of the telescopic arm at the end section, this application utilizes the extension of the transition mounting plate to bring the installation position of the cable chain guide frame closer to the tail of the base arm. This allows for the use of common tools for disassembly and assembly of the cable chain guide frame. The closer installation position to the tail of the base arm provides better visibility, facilitating the disassembly and assembly of the cable chain device and effectively solving the problems of limited internal space and difficult disassembly / assembly in existing cable chain device installation locations. Furthermore, the width of the second mounting side plate is smaller than the width of the first mounting side plate, further preventing the second mounting side plate from obstructing the first mounting side plate and facilitating the disassembly and replacement of the transition mounting plate itself.
[0016] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 A three-dimensional structural diagram of a transition mounting plate provided in an embodiment of this application; Figure 2 A partial structural diagram of a telescopic boom with a transition mounting plate provided for an embodiment of this application, showing only the telescopic arm located at the end section; Figure 3 for Figure 2 A magnified view of a portion of point A in the middle; Figure 4 for Figure 1 The front view of the transition mounting plate is shown. Figure 5 for Figure 4 Right view of the transition mounting plate shown; Figure 6 A three-dimensional structural diagram of a cable chain device and a transition mounting plate provided in this application; Figure 7 This is a partial structural diagram of the boom head of a telescopic boom in the retracted state, as provided in this application.
[0018] Explanation of reference numerals in the attached figures 100. Telescopic boom; 110. Basic Arm; 120. Telescopic boom; 130. Transition mounting plate; 131. Extension plate; 1310. Recessed area; 1311. Cutout area; 132. First mounting side plate; 1320. First mounting hole; 133. Second mounting side plate; 1330. Second mounting hole; 134. Supporting rib plate; 140. Cable chain assembly; 141. Cable chain guide frame; 1410. Extension plate; 1411. Bending section; 142. Movable cable chain assembly; 1420. First cable chain body; 1421. Movable frame; 1422. Second cable chain body. Detailed Implementation
[0019] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.
[0020] The present application will now be described in detail with reference to the accompanying drawings and exemplary embodiments.
[0021] Example Please see Figure 1 and Figure 2 On the one hand, this embodiment provides a transition mounting plate 130. The transition mounting plate 130 can be applied to the telescopic boom 100.
[0022] The telescopic boom 100 includes a basic boom 110 and a multi-section telescopic boom (such as...) disposed within the basic boom 110. Figure 7 (As shown) 120 and cable chain device 140, the cable chain device 140 includes cable chain guide 141 and movable cable chain assembly 142 connected to cable chain guide 141.
[0023] The cable chain guide frame 141 is connected to the telescopic joint arm 120 located at the end section, and one end of the movable cable chain assembly 142 is connected to the cable chain guide frame 141, while the other end is installed on the base arm 110.
[0024] The transition mounting plate 130 provided in this embodiment includes an extension plate 131, a first mounting side plate 132, and a second mounting side plate 133.
[0025] The first mounting side plate 132 and the second mounting side plate 133 are arranged along the length of the extension plate 131, wherein the first mounting side plate 132 is disposed at one end of the extension plate 131 and the second mounting side plate 133 is disposed at the other end of the extension plate 131.
[0026] Please see Figure 2 and Figure 3 When the transition mounting plate 130 is installed into the telescopic boom 100, the first mounting side plate 132 corresponds to the tail of the telescopic boom 120 located at the end section and is connected by fasteners, and the second mounting side plate 133 corresponds to the drag chain guide frame 141 in the drag chain device 140 and is connected by fasteners.
[0027] Please refer to the following: Figure 4 and Figure 5 The first mounting side plate 132 has at least two spaced first mounting holes 1320. Specifically, the tail of the telescopic arm 120 has a fourth mounting hole corresponding to the first mounting holes 1320. By passing a fastener through the first mounting hole 1320 and engaging with the fourth mounting hole, the transition mounting plate 130 can be installed on the tail of the corresponding telescopic arm 120. The second mounting side plate 133 has at least two spaced second mounting holes 1330. Specifically, the cable chain guide frame 141 has a third mounting hole. By passing a fastener through the third mounting hole and engaging with the second mounting hole 1330, the cable chain guide frame 141 can be detachably installed.
[0028] In this embodiment, as Figure 5 As shown, the first mounting side plate 132 and the second mounting side plate 133 are aligned and arranged, and along the width direction of the extended plate 131, the width of the second mounting side plate 133 is smaller than the width of the first mounting side plate 132.
[0029] It is understood that the transition mounting plate 130 provided in this embodiment connects the first mounting side plate 132 to the arm tail of the telescopic joint arm 120 located at the end section through the first mounting hole 1320 on the first mounting side plate 132, and the extension plate 131 achieves the extension function, so that the second mounting side plate 133 is closer to the arm tail of the basic arm 110, and then the second mounting hole 1330 on the second mounting side plate 133 achieves the connection with the drag chain guide frame 141 of the drag chain device 140.
[0030] Thus, compared to the traditional structure that directly connects the cable chain guide frame to the tail of the telescopic arm located at the end section, this embodiment utilizes the extension effect of the transition mounting plate 130 to bring the mounting position of the cable chain guide frame 141 closer to the tail of the basic arm 110. When disassembling and assembling the cable chain guide frame 141, ordinary general-purpose tools can be used to reach in and perform the disassembly and assembly work. The closer the mounting position is to the tail of the basic arm 110, the better the operating field of vision. This makes it easier for operators to disassemble and assemble the cable chain device 140, thereby effectively solving the problem of the small internal space and the relatively long and narrow shape of the existing cable chain device 140 mounting position, which makes disassembly and assembly difficult.
[0031] Furthermore, the width of the second mounting side plate 133 is smaller than the width of the first mounting side plate 132, which can further prevent the second mounting side plate 133 from obstructing the first mounting side plate 132, thereby achieving space avoidance and facilitating the disassembly and replacement of the transition mounting plate 130 itself.
[0032] Furthermore, both the first mounting side plate 132 and the second mounting side are perpendicular to the wide surface of the extension plate 131. This allows the first mounting hole 1320 and the second mounting hole 1330 on the first mounting side plate 132 and the second mounting side plate 133 to face the tail of the basic arm 110. Thus, during disassembly and assembly, the first mounting hole 1320 and the second mounting hole 1330 face the operator, facilitating disassembly and assembly operations.
[0033] Please see Figure 1 , Figure 4 and Figure 5 In this embodiment, two first mounting holes 1320 are provided, and the distance between the two first mounting holes 1320 is greater than or equal to the width of the second mounting side plate 133. This ensures that the disassembly and assembly tools can smoothly avoid the second mounting side plate 133 and reach the second mounting hole 1330 to disassemble and assemble the fasteners, further achieving obstacle avoidance during disassembly and assembly.
[0034] Furthermore, such as Figure 4 As shown, the first mounting hole 1320 is a smooth hole, and the corresponding fourth mounting hole is a threaded hole, so that the fastener can pass through the first mounting hole 1320 and mate with the threaded pair of the corresponding fourth mounting hole. The second mounting hole 1330 is a threaded hole, and the corresponding third mounting hole is set as a smooth hole (the third mounting hole is set on the cable chain guide 141, which will be described below), so that the fastener can pass through the third mounting hole and mate with the threaded pair of the corresponding second mounting hole 1330.
[0035] Optionally, the fastener can be a screw or bolt. Specifically, the screw or bolt head has an internal hexagonal structure, which facilitates disassembly using a tool (internal hexagonal wrench), which occupies little space. If there is sufficient space for disassembly and assembly, the screw or bolt head can also be made with an external hexagonal structure, and a socket wrench can be used for disassembly and assembly.
[0036] In some embodiments, the head of the screw or bolt may also be configured to be non-circular, requiring corresponding disassembly and assembly tools.
[0037] In some embodiments, the first mounting side plate 132 and the second mounting side plate 133 are welded to the extension plate 131.
[0038] In other embodiments, the first mounting side plate 132 and the second mounting side plate 133 are integral with the extension plate 131, for example, integrally cast, integrally bent, or integrally milled.
[0039] The transition mounting plate 130 also includes a support rib 134, which is arranged between the first mounting side plate 132 and the second mounting side plate 133. The support rib 134 is welded to the first mounting side plate 132, the second mounting side plate 133, and the extension plate 131, respectively. Thus, the support rib 134 further enhances the structural strength of the entire transition mounting plate 130 and improves the reliability of the cable chain installation device 140.
[0040] Please see Figure 1 The extension plate 131 has recesses 1310 on both sides of its middle section, recessed inwards along its width. These recesses 1310 allow for clearance from fasteners (such as those exposed after other components are installed on the cable chain guide frame 141) that may be exposed. Figure 3 (As shown).
[0041] Please see Figure 1 The extension plate 131 has a hollow area 1311, which can further save materials and reduce weight.
[0042] Please see Figure 2 , Figure 3 , Figure 6 and Figure 7 On the other hand, this embodiment also provides a telescopic boom 100. The telescopic boom 100 includes a base boom 110 and a multi-section telescopic boom 120 disposed within the base boom 110, as well as a cable chain device 140.
[0043] Please see Figure 2 and Figure 6 The cable chain assembly 140 includes a movable cable chain assembly 142 and a cable chain guide frame 141. One end of the movable cable chain assembly 142 is connected to the cable chain guide frame 141, and the other end of the movable cable chain assembly 142 is mounted on the base arm 110. The cable chain guide frame 141 is detachably connected to the tail of the telescopic joint arm 120 located at the end section via the aforementioned transition mounting plate 130.
[0044] Please refer to the following: Figure 3 The cable chain guide frame 141 is provided with an extension plate 1410 at one end of the telescopic arm 120 located at the end of the last section. The extension plate 1410 is provided with a bent portion 1411 at one end away from the cable chain guide frame 141, which cooperates with the second mounting side plate 133. The bent portion 1411 is provided with the third mounting hole corresponding to the second mounting hole 1330.
[0045] Please see Figure 6The movable cable chain assembly 142 includes a first cable chain body 1420, a movable frame 1421, and a second cable chain body 1422. One end of the movable frame 1421 is mounted on the tail of the telescopic arm 120 located in the middle, and the other end of the movable frame 1421 extends into the telescopic arm 120 located at the end section. One end of the first cable chain body 1420 is mounted on the base arm 110, and the other end is connected to the end of the movable frame 1421 near the tail of the base arm 110. One end of the second cable chain body 1422 is mounted on the cable chain guide frame 141, and the other end is mounted on the end of the movable frame 1421 away from the tail of the base arm 110.
[0046] Please see Figures 1 to 7 Furthermore, this embodiment also provides a piece of construction machinery. The construction machinery includes the telescopic boom 100 provided above. Optionally, the construction machinery can be an aerial work platform or a crane.
[0047] It should be noted that, in this application, unless otherwise stated, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" used to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or 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 construed as a limitation of this application.
[0048] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0051] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A transition mounting plate applied to a telescopic boom (100), the telescopic boom (100) comprising a base boom (110) and a multi-section telescopic boom (120) disposed within the base boom (110) and a cable chain device (140), characterized in that, The transition mounting plate (130) includes: Extended plate (131); A first mounting side plate (132) is disposed at one end of the extension plate (131) and is used to correspond to the arm tail of the telescopic joint arm (120) located at the end section. The first mounting side plate (132) is provided with at least two spaced first mounting holes (1320). The second mounting side plate (133) is disposed at the other end of the extension plate (131) and is used to correspond to the drag chain guide frame (141) of the drag chain device (140). The second mounting side plate (133) is provided with at least two spaced second mounting holes (1330). The first mounting side plate (132) and the second mounting side plate (133) are aligned and arranged, and along the width direction of the extended plate (131), the width of the second mounting side plate (133) is smaller than the width of the first mounting side plate (132).
2. The transition mounting plate according to claim 1, characterized in that, There are two first mounting holes (1320), and the hole spacing between the two first mounting holes (1320) is greater than or equal to the width of the second mounting side plate (133).
3. The transition mounting plate according to claim 1, characterized in that, The first mounting hole (1320) is a smooth hole, and the second mounting hole (1330) is a threaded hole.
4. The transition mounting plate according to claim 1, characterized in that, The first mounting side plate (132) and the second mounting side plate (133) are welded to the extension plate (131) or are an integral structure.
5. The transition mounting plate according to claim 1, characterized in that, The transition mounting plate (130) further includes a support rib (134), which is arranged between the first mounting side plate (132) and the second mounting side plate (133); The supporting stiffener (134) is welded to the first mounting side plate (132), the second mounting side plate (133) and the extension plate (131) respectively.
6. The transition mounting plate according to claim 1, characterized in that, The extension plate (131) has recesses (1310) on both sides of the middle part, which are recessed inward along its width direction.
7. The transition mounting plate according to claim 1, characterized in that, The extension plate (131) has a hollow area (1311) on its upper surface.
8. A telescopic boom, characterized in that, The device includes a base arm (110), a multi-section telescopic arm (120) disposed within the base arm (110), and a cable chain device (140). The cable chain device (140) includes a movable cable chain assembly (142) and a cable chain guide frame (141). One end of the movable cable chain assembly (142) is connected to the cable chain guide frame (141), and the other end is mounted on the base arm (110). The cable chain guide frame (141) is detachably connected to the tail of the telescopic arm (120) located at the end section via a transition mounting plate (130) according to any one of claims 1-7.
9. The telescopic boom according to claim 8, characterized in that, The cable chain guide frame (141) has an extension plate (1410) at one end near the end of the telescopic joint arm (120) located at the end section. The extension plate (1410) away from the cable chain guide frame (141) has a bent portion (1411) that cooperates with the second mounting side plate (133). The bent portion (1411) is provided with a third mounting hole corresponding to the second mounting hole (1330).
10. An engineering machinery, characterized in that, Includes the telescopic boom (100) according to any one of claims 8-9.