Installation structure, linear telescopic mechanism, telescopic boom assembly and construction machinery

Abstract

This application provides an installation structure, a linear telescopic mechanism, a telescopic boom assembly, and engineering machinery, relating to the field of mechanical assembly structure technology. The installation structure includes an installation base and a locking module. The installation base has a receiving cavity extending along its length, which houses the linear telescopic mechanism. Two opposite side walls of the receiving cavity are provided with installation side plates, each with an open slot for a clamping plate seat to engage. The open slots extend inward from the end face of the installation base along its length. A locking module is provided for each open slot. After the clamping plate seat engages with the open slot, the locking module is inserted into the corresponding open slot, forming a clamping space between itself and the installation side plate for holding and fixing the clamping plate seat. The installation structure disclosed in this application is simple in structure, easy to install, and does not occupy axial installation space.

Description

Technical Field

[0001] This application belongs to the field of mechanical assembly structure technology, specifically relating to an installation structure, a linear telescopic mechanism, a telescopic boom assembly, and engineering machinery. Background Technology

[0002] Linear telescopic mechanisms are used to output linear telescopic movement and are typically installed in confined spaces, such as inside a telescopic boom or outrigger. A linear telescopic mechanism has a fixed end and a corresponding movable end, both of which have protruding lugs. During assembly, a pin needs to be inserted into the corresponding lug before connecting to the corresponding hinge. Due to limited installation space, installing a linear telescopic mechanism is relatively difficult, and the hinge requires a significant amount of axial space. Utility Model Content

[0003] The purpose of this application is to provide an installation structure, a linear telescopic mechanism, a telescopic boom assembly, and engineering machinery to solve the problems of installation difficulties and axial space occupation in the existing linear telescopic mechanism installation structure.

[0004] To achieve the above objectives, the first aspect of this application provides an installation structure for mounting a linear telescopic mechanism, wherein the linear telescopic mechanism is provided with a retaining plate seat, and the installation structure includes: The mounting base has an internal receiving cavity extending along its length to accommodate the linear telescopic mechanism. Two opposite side walls of the receiving cavity are each provided with a mounting side plate. Each mounting side plate has an open slot for the locking plate seat to engage, and the open slot extends inward from the end face of the mounting base along its length. A locking module is provided for each of the opening slots; Wherein, after the card plate seat is engaged with the open card slot, the locking module is assembled into the corresponding open card slot, and a clamping space for clamping and fixing the card plate seat is formed between the locking module and the mounting side plate.

[0005] As a further improvement to the above technical solution: In some embodiments, the open slot is provided with an open section, a backstop section and a positioning section in sequence along the length of the mounting base; The opening section is used to allow the card holder to pass through, and the positioning section is used to accommodate the card holder's mounting part; Wherein, the width of the opening segment is less than the width of the stop segment, and the width of the positioning segment is less than or equal to the width of the opening segment.

[0006] In some embodiments, the locking module includes: During installation, the anti-reverse assembly is placed on the anti-reverse section along the extending direction of the open slot. One side of the anti-reverse assembly forms a clamping space with the positioning section for clamping the card holder, and the other side of the anti-reverse assembly abuts against the shoulder formed by the straight groove between the anti-reverse section and the open section. During installation, the limiting component is inserted into the opening segment and connected to the anti-reverse component. The limiting component forms an insert fit with the corresponding mounting side plate to limit the degree of freedom of movement of the anti-reverse component in the thickness direction of the mounting side plate.

[0007] In some embodiments, the backstop component includes: Adjusting shims; and During installation, the anti-reverse block is disposed in the anti-reverse section. Along the extension direction of the opening slot, the side of the anti-reverse block facing away from the positioning section abuts against the shoulder. A preset number of adjusting shims are sequentially disposed on the side of the anti-reverse block facing the positioning section. The adjusting shims are detachably connected to the anti-reverse block. The outermost adjusting shim is used to form a clamping space between itself and the positioning segment for clamping the card holder.

[0008] In some embodiments, the adjusting shim includes an abutment portion and a mounting portion integrally connected, the abutment portion and the mounting portion being at a preset angle, the mounting portion being connected to the anti-reverse block by a fastener, and the abutment portion being located on the side of the anti-reverse block facing the positioning segment.

[0009] In some embodiments, the limiting component includes a limiting block body; The limiting block body has a first insertion groove at both ends of the opening section in the width direction, and the width of the mounting side plate is clearance-fitted with the width of the first insertion groove; or, the limiting block body has an insertion protrusion at both ends of the opening section in the width direction, and the mounting side plate of the opening section has a second insertion groove that is clearance-fitted with the insertion protrusion.

[0010] A second aspect of this application also provides a linear telescopic mechanism, including a card plate base, a fixed end, and a telescopic end that telescopically extends and retracts relative to the fixed end; The clamping plate seat is disposed on the fixed end or the telescopic end, and the clamping plate seat is used to clamp and cooperate with the mounting structure provided in the first aspect.

[0011] As a further improvement to the above technical solution: In some embodiments, the linear telescopic mechanism is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0012] A third aspect of this application also provides a telescopic boom assembly, including the mounting structure provided according to the first aspect and the linear telescopic mechanism provided according to the second aspect. The mounting base is a basic arm.

[0013] The fourth aspect of this application also provides an engineering machine, including a telescopic boom assembly according to the third aspect above.

[0014] Compared with existing technologies, the installation structure, linear telescopic mechanism, telescopic boom assembly, and engineering machinery provided in this application have at least the following beneficial effects: The installation structure provided in this application, when installing a linear telescopic mechanism, inserts the retaining plate seat of the linear telescopic mechanism into the corresponding opening slot of the mounting base. Then, a locking module is assembled into the corresponding opening slot and fixedly connected to the mounting side plate. A clamping space is formed between the locking module and the mounting side plate to hold and fix the retaining plate seat, thereby completing the fixed installation of the linear telescopic mechanism. The installation structure provided in this application is simple in structure and easy to install. Since the opening slots are located on the mounting side plates of the two opposite side walls of the receiving cavity, there is no need to arrange a hinge seat in the receiving cavity of the mounting base, thus avoiding the occupation of axial installation space.

[0015] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0016] 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 This is a partial structural diagram of an installation structure provided in this embodiment; Figure 2 for Figure 1 Right view of the installation structure shown; Figure 3 for Figure 2 A structural diagram of the mounting base in the mounting structure shown; Figure 4 This is an exploded view of the anti-reverse component in the installation structure provided in this embodiment; Figure 5 This is a schematic diagram of the structure of the adjusting shim in the anti-reverse assembly provided in this embodiment; Figure 6 for Figure 1 Schematic diagram of the structure at point A; Figure 7 This is a schematic diagram of the card plate seat on the linear telescopic mechanism provided in this embodiment; Figure 8 This is a schematic diagram of a linear telescopic mechanism provided in this embodiment; Figure 9 This is a schematic diagram of another linear telescopic mechanism provided in this embodiment.

[0017] Explanation of reference numerals in the attached figures 100. Mounting base; 110. Receiving cavity; 120. Mounting side plate; 121. Opening slot; 1210. Opening section; 1211. Anti-reverse section; 1212. Positioning section; 1213. Shoulder; 122. Through hole; 200. Locking module; 210. Anti-reverse assembly; 211. Adjusting shim; 2110. Abutment part; 2111. Mounting part; 212. Anti-reverse block; 2120. Threaded hole; 213. Second fastener; 220. Limiting assembly; 221. Limiting block body; 222. First insertion slot; 230. First fastener; 240. Third fastener; 300. Linear telescopic mechanism; 310. Card plate seat; 311. Mounting part; 312. Oil port connector; 320. Fixed end; 330. Telescopic end. Detailed Implementation

[0018] 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.

[0019] The present application will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0020] Example 1 Please see Figure 1 and Figure 2 This embodiment provides an installation structure for mounting the linear telescopic mechanism 300. This embodiment also provides a linear telescopic mechanism 300 (such as...). Figure 8 or Figure 9 As shown), the linear telescopic mechanism 300 can output telescopic movement along a straight direction, and the linear telescopic mechanism 300 is provided with a card plate seat 310.

[0021] The mounting structure provided in this embodiment includes a mounting base 100 and a locking module 200. The mounting base 100 has a receiving cavity 110 extending through its own length. The receiving cavity 110 is used to receive the linear telescopic mechanism 300. The two opposite side walls of the receiving cavity 110 are provided with mounting side plates 120. The mounting side plates 120 are provided with open slots 121 for the locking plate seat 310 to be engaged. The open slots 121 extend inward from the end face of the mounting base 100 along the length of the mounting base 100.

[0022] Each open slot 121 is equipped with a locking module 200, meaning the number of locking modules 200 corresponds to the number of open slots 121. During installation, after the card plate base 310 is inserted into the open slot 121, the locking module 200 is inserted into the corresponding open slot 121. A clamping space is formed between the locking module 200 and the mounting side plate 120 to hold and fix the card plate base 310, thereby clamping and fixing the card plate base 310 and completing the fixed installation of the linear telescopic mechanism.

[0023] The mounting structure provided in this embodiment is simple and easy to install. Since the opening slots are set on the mounting side plates 120 of the two opposite side walls of the receiving cavity 110, there is no need to arrange the hinge seat in the receiving cavity 110 of the mounting base 100, so it does not occupy axial installation space.

[0024] To more clearly describe the technical solution of this application, the installation structure provided in this embodiment is described in detail below: Please see Figure 1 , Figure 2 and Figure 3 In this embodiment, the opening slot 121 is provided with an opening section 1210, a stop section 1211, and a positioning section 1212 sequentially along the length direction of the mounting base 100. The opening section 1210 is used for the passage of the card holder 310, and the positioning section 1212 is used to receive the card holder 310's mounting part 311 (e.g., ...). Figure 7 (As shown).

[0025] The width of the opening segment 1210 is less than the width of the stop segment 1211, thus forming a shoulder 1213 between the opening segment 1210 and the stop segment 1211. The width of the positioning segment 1212 is less than or equal to the width of the opening segment 1210, so that the clamping plate holder 310 can pass smoothly through the opening segment 1210 and then be engaged with the positioning segment 1212 via the stop segment 1211.

[0026] Optionally, the opening slot 121 is shaped like a cross.

[0027] Please see Figure 1 and Figure 2The aforementioned locking module 200 includes a backstop component 210 and a limiting component 220. The backstop component 210 and the limiting component 220 are detachably connected for easy installation and removal. During installation, the backstop component 210 is positioned in the backstop section 1211, and along the extending direction of the open slot 121, one side of the backstop component 210 forms a clamping space with the positioning section 1212 for clamping the card holder 310. The other side of the backstop component 210 abuts against the shoulder 1213 formed between the backstop section 1211 and the open section 1210 to restrict the card holder 310 from exiting the positioning section 1212. During installation, the limiting component 220 is inserted into the opening section 1210 and connected to the anti-reverse component 210. Specifically, the limiting component 220 and the corresponding mounting side plate 120 form an insert fit to limit the degree of freedom of movement of the anti-reverse component 210 in the thickness direction of the mounting side plate 120.

[0028] In some embodiments, the limiting component 220 and the anti-reverse component 210 are detachably connected by a first fastener 230. Optionally, the first fastener 230 is a screw, bolt, or rivet.

[0029] Please refer to the following: Figure 4 Furthermore, the anti-reverse assembly 210 includes adjusting shims 211 and anti-reverse blocks 212. During installation, the anti-reverse block 212 is positioned within the anti-reverse section 1211, and along the extending direction of the open slot 121, the side of the anti-reverse block 212 facing away from the positioning section 1212 abuts against the shoulder 1213. A predetermined number of adjusting shims 211 are sequentially arranged on the side of the anti-reverse block 212 facing the positioning section 1212, and the adjusting shims 211 are detachably connected to the anti-reverse block 212. The outermost adjusting shim 211 forms a clamping space with the positioning section 1212 for clamping the card holder 310.

[0030] It is understandable that the number of adjusting shims 211 can be one, two, or multiple stacked shims. The specific number of adjusting shims 211 mainly depends on their own thickness and the distance from the side of the anti-reverse stop 212 facing the positioning section 1212 to the clamping plate seat 310. It is also understandable that when multiple adjusting shims 211 are required, the thickness of the different adjusting shims 211 can be equal or unequal. It is only necessary to fill the distance from the side of the anti-reverse stop 212 facing the positioning section 1212 to the clamping plate seat 310 to facilitate clamping of the clamping plate seat 310.

[0031] Please refer to the following: Figure 5The adjusting shim 211 includes an abutting part 2110 and a mounting part 2111 connected as one piece. The abutting part 2110 and the mounting part 2111 are at a preset angle. The mounting part 2111 is connected to the anti-reverse block 212 by a second fastener 213. The abutting part 2110 is located on the side of the anti-reverse block 212 facing the positioning section 1212.

[0032] In this embodiment, the adjusting shim 211 is bent, and the included angle between the abutting part 2110 and the mounting part 2111 is a right angle.

[0033] Optionally, the second fastener 213 is a screw, bolt, or rivet.

[0034] Please see Figure 1 , Figure 2 and Figure 6 In this embodiment, the limiting component 220 includes a limiting block body 221; the limiting block body 221 is provided with a first insertion groove 222 at both ends of the width direction of the opening section 1210, and the width of the mounting side plate 120 and the width of the first insertion groove 222 are in clearance fit.

[0035] In some embodiments, the limiting block body 221 is provided with insertion protrusions at both ends of the opening section 1210 in the width direction, and the mounting side plate 120 of the opening section 1210 is provided with a second insertion groove that is clearance-fitted with the insertion protrusions.

[0036] Please see Figure 1 , Figure 4 and Figure 6 Furthermore, to improve the stability of the anti-reverse assembly 210 after installation, this embodiment also provides a through hole 122 extending along the direction of the opening slot 121 to the anti-reverse section 1211 on the end face of the mounting side plate 120. The side of the anti-reverse block 212 of the anti-reverse assembly 210 is provided with a threaded hole 2120, so that the third fastener 240 is connected to the anti-reverse block 212 through the through hole 122. Optionally, the third fastener 240 is selected as a screw or bolt.

[0037] Example 2 Please see Figure 1 , Figure 7 , Figure 8 and Figure 9 This embodiment provides a linear telescopic mechanism 300. The linear telescopic mechanism 300 includes a clamping plate base 310, a fixed end 320, and a telescopic end 330 that can linearly extend and retract relative to the fixed end 320. The clamping plate base 310 is disposed on the fixed end 320 or the telescopic end 330, and the clamping plate base 310 is used for clamping and cooperating with the installation structure provided in the first embodiment.

[0038] The card holder 310 has a mounting part 311 protruding at both ends along its length. The mounting part 311 can be accommodated in the positioning section 1212 of the corresponding open slot 121.

[0039] In some embodiments, the linear telescopic mechanism 300 is a hydraulic cylinder, the fixed end 320 is the cylinder barrel of the hydraulic cylinder, and the movable end is the piston rod of the hydraulic cylinder.

[0040] Optionally, the clamping plate seat 310 is disposed on the cylinder body; more preferably, the clamping plate seat 310 is disposed at any end of the cylinder. When the clamping plate seat 310 is disposed at the bottom of the cylinder, an oil port connector 312 is provided on the clamping plate to facilitate the installation of the oil supply pipe; when the clamping plate seat 310 is disposed on the piston rod, in order to reduce the exposed length of the piston rod, the clamping plate seat 310 is disposed at the end of the piston rod away from the cylinder.

[0041] It should be noted that the stability calculation of the hydraulic cylinder adopts the constant section calculation method, and the critical load is calculated according to Euler's formula. .at this time: (1) In the formula: —Critical load (N) for longitudinal bending failure of piston rod; n—End condition coefficient (when both ends of the cylinder are hinged: n=1; when one end of the cylinder is hinged and the other end is fixed: n=2; when both ends of the cylinder are fixed: n=4;). —The elastic modulus of the piston rod material, for steel, is taken as... ; —Moment of inertia of the piston rod section ( ); solid piston rod Hollow piston rod ; —Piston rod outer diameter (m); — Piston rod inner diameter (m); —Calculated length of piston rod, i.e., the distance (m) between the piston rod end fulcrum and the hydraulic cylinder mounting point when the piston rod is at its maximum extension. —Radius of inertia of the piston rod section ( ); solid piston rod Hollow piston rod ; — Piston rod cross-sectional area ( ); Taking a solid piston rod as an example: Solid piston rod ; According to formula (1):

[0042] It can be deduced that the piston rod diameter is:

[0043] Thus, it can be known that when , , At a given time, the terminal condition coefficient The larger the diameter, the more piston rod diameter is required. The smaller the diameter, the better. Therefore, the piston rod diameter of the hydraulic cylinder provided in this embodiment is smaller than that of the existing structure, thereby saving costs.

[0044] In other embodiments, the linear telescopic mechanism 300 may also be a pneumatic cylinder or an electric cylinder. It should be understood that the above are merely illustrative examples and are not intended to limit the scope of protection of this application.

[0045] Example 3 Please see Figures 1 to 9 This embodiment provides a telescopic boom assembly. The telescopic boom assembly includes the mounting structure provided according to Embodiment 1 above and the linear telescopic mechanism 300 provided according to Embodiment 2 above. The mounting base 100 is the base boom, and the telescopic end 330 of the linear telescopic mechanism 300 is connected to the telescopic arm disposed on the base boom. Thus, the linear telescopic mechanism 300 outputs telescopic motion to drive the telescopic arm to perform telescopic movements relative to the base boom.

[0046] This embodiment also provides an engineering machine, including the telescopic boom assembly provided above.

[0047] Among them, construction machinery can be cranes, aerial work platforms, etc.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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 mounting structure characterized by comprising: For mounting a linear telescopic mechanism (300), the linear telescopic mechanism (300) is provided with a retaining plate seat (310), the mounting structure includes: The mounting base (100) has an internal receiving cavity (110) extending along its length. The receiving cavity (110) is used to house the linear telescopic mechanism (300). Each of the two opposite side walls of the receiving cavity (110) has a mounting side plate (120). The mounting side plate (120) has an open slot (121) for the locking plate seat (310) to engage. The open slot (121) extends inward from the end face of the mounting base (100) along its length. A locking module (200) is provided for each of the opening slots (121); Wherein, after the card plate seat (310) is inserted into the open card slot (121), the locking module (200) is installed into the corresponding open card slot (121), and a clamping space for clamping and fixing the card plate seat (310) is formed between the locking module (200) and the mounting side plate (120).

2. The mounting structure according to claim 1, characterized by The open slot (121) is provided with an open section (1210), a stop section (1211) and a positioning section (1212) in sequence along the length direction of the mounting base (100). The opening section (1210) is used to allow the card holder (310) to pass through, and the positioning section (1212) is used to receive the card holder (311) of the card holder (310). The width of the opening segment (1210) is less than the width of the stop segment (1211), and the width of the positioning segment (1212) is less than or equal to the width of the opening segment (1210).

3. The mounting structure according to claim 2, characterized by The locking module (200) includes: During installation, the anti-reverse assembly (210) is placed on the anti-reverse section (1211). Along the extending direction of the open slot (121), one side of the anti-reverse assembly (210) forms a clamping space for clamping the card holder (310) between itself and the positioning section (1212). The other side of the anti-reverse assembly (210) abuts against the shoulder (1213) formed by the straight line between the anti-reverse section (1211) and the open section (1210). During installation, the limiting component (220) is inserted into the opening section (1210) and connected to the anti-reverse component (210). The limiting component (220) and the corresponding mounting side plate (120) form an insert fit to limit the degree of freedom of movement of the anti-reverse component (210) in the thickness direction of the mounting side plate (120).

4. The mounting structure according to claim 3, wherein The backstop component (210) includes: Adjusting shims (211); and During installation, the anti-reverse block (212) is disposed in the anti-reverse section (1211). Along the extension direction of the opening slot (121), the side of the anti-reverse block (212) facing away from the positioning section (1212) abuts against the shoulder (1213). A preset number of adjusting shims (211) are sequentially disposed on the side of the anti-reverse block (212) facing the positioning section (1212). The adjusting shims (211) are detachably connected to the anti-reverse block (212). The outermost adjusting shim (211) is used to form a clamping space between itself and the positioning section (1212) for clamping the card holder (310).

5. The mounting structure according to claim 4, wherein The adjusting shim (211) includes an abutment part (2110) and an mounting part (2111) connected as one piece. The abutment part (2110) and the mounting part (2111) are at a preset angle. The mounting part (2111) is connected to the anti-reverse block (212) by a fastener. The abutment part (2110) is located on the side of the anti-reverse block (212) facing the positioning section (1212).

6. The mounting structure according to claim 3, wherein The limiting component (220) includes a limiting block body (221); The limiting block body (221) is provided with first insertion grooves (222) at both ends of the opening section (1210) in the width direction, and the width of the mounting side plate (120) is clearance-fitted with the width of the first insertion grooves (222); or, the limiting block body (221) is provided with insertion protrusions at both ends of the opening section (1210) in the width direction, and the mounting side plate (120) located in the opening section (1210) is provided with a second insertion groove that is clearance-fitted with the insertion protrusions.

7. A linear extension mechanism, characterized by, It includes a card holder (310), a fixed end (320), and a telescopic end (330) that extends linearly relative to the fixed end (320). The clamping plate seat (310) is disposed on the fixed end (320) or the telescopic end (330), and the clamping plate seat (310) is used to clamp and cooperate with the installation structure according to any one of claims 1-6.

8. The linear telescoping mechanism of claim 7, wherein, The linear telescopic mechanism (300) is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

9. A telescoping boom assembly characterized by, Includes the mounting structure according to any one of claims 1-6 and the linear telescopic mechanism (300) according to any one of claims 7-8; The mounting base (100) is the basic arm.

10. A working machine, characterized in that Includes the telescopic boom assembly according to claim 9.

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