Suspension arm supporting structure

Abstract

The invention relates to the technical field of engineering machinery, and discloses a suspension arm supporting structure which comprises a carrying platform and a supporting frame. The supporting frame is arranged on the carrying platform and can move relative to the carrying platform, the supporting frame comprises a first supporting part and a second supporting part, the supporting frame can move relative to the carrying platform to have a first position and a second position, when the supporting frame is located at the first position, the first supporting part is in a supporting state, and when the supporting frame is located at the second position, the second supporting part is in a supporting state; when the second supporting part is in a retracted state, the first supporting part supports the telescopic arm; when the supporting frame is located at the second position, the second supporting part is in the supporting state, the first supporting part is in the retracting state, and the second supporting part is used for supporting the fly boom. Therefore, in a transportation state, the fly boom can be supported and limited by the second supporting part under the condition that the fly boom is kept to be mounted on the telescopic boom, so that the fly boom and the main boom form an integral structure, and the fly boom and the main boom are transported to a construction site along with a vehicle.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, specifically to a boom support structure. Background Technology

[0002] Knuckle boom cranes typically include two types of boom structures: telescopic boom and flying boom. The telescopic boom has a larger cross-section and more telescopic sections, and mainly bears the load; the flying boom is detachably installed at the end of the telescopic boom section, has a smaller cross-section, and mainly plays an auxiliary load-bearing role.

[0003] In actual operation, when the working space is relatively open, only the telescopic boom is generally used for lifting operations. When the working space is limited (such as inside a factory, under a bridge, or in a tunnel), a jib needs to be installed at the end of the telescopic boom to assist in lifting. When the vehicle travels to the work site, the telescopic boom travels with the vehicle, while the jib needs to be transported by a separate trailer, resulting in higher transportation costs. At the same time, for construction scenarios where the work sites are scattered and multiple relocations are required, the jib needs to be installed and dismantled before and after each operation, which is not only time-consuming and labor-intensive but also significantly reduces the overall work efficiency. Summary of the Invention

[0004] This invention provides a boom support structure to solve the above-mentioned technical problems.

[0005] This invention provides a boom support structure, comprising: Transport platform; A support frame is mounted on a transport platform and is movable relative to the transport platform. The support frame includes a first support part and a second support part. The support frame is designed to move relative to the transport platform to have a first position and a second position. When the support frame is in the first position, the first support part is in a supported state and the second support part is in a retracted state, with the first support part supporting the telescopic arm. When the support frame is in the second position, the second support part is in a supported state and the first support part is in a retracted state, with the second support part supporting the flying arm.

[0006] Beneficial effects: Therefore, during transport, the boom, while still mounted on the telescopic boom, is supported and restrained by the second support unit, forming an integral structure with the main boom, and is transported to the construction site along with the vehicle. Simultaneously, when the equipment needs to be moved between multiple sites, there is no need for repeated disassembly and reassembly of the boom, thus reducing the time and labor costs associated with loading and unloading operations. Compared to related technologies that require separate transport of the boom, no additional dedicated trailer is needed, effectively reducing transportation costs and simplifying the organization and scheduling of equipment transfer. Furthermore, the stable support provided by the second support unit ensures reliable support and restraint for the boom during transport, reducing swaying or uneven stress on the boom, thereby improving the overall stability and safety of the transport process. This not only improves the reliability of equipment transport but also further enhances the convenience and operational efficiency of the equipment in actual use.

[0007] In one alternative embodiment, a first support is rotatably connected to a transport platform and rotates about a first direction, and a second support is connected to one side of the first support along a second direction and is set at an angle to the first support, wherein the first direction is perpendicular to the second direction.

[0008] Beneficial effects: Therefore, by driving the first support part to rotate in a direction away from the second support part, the included angle between the first and second support parts can be rotated so that the second support part rotates to be parallel to the vertical, thereby achieving support for the flying arm. This provides stable and reliable support and constraint for the flying arm during transportation, reducing swaying or uneven force distribution, and further improving the stability and safety of the overall transportation process.

[0009] In one alternative embodiment, the boom support structure further includes: The stop is provided on the transport platform. Along the second direction, the stop is located on the side of the first support that is away from the second support. When the second support is in the support position, the first support rotates to abut against the stop.

[0010] Beneficial effects: When the first support rotates toward the stop at approximately the aforementioned angle and abuts against the stop, the second support rotates to a vertical position, thereby forming a new support point on the side of the support frame facing the transport platform. This allows the boom to be stably supported on the second support. Through the limiting effect of the stop, not only can the second support be accurately rotated to the predetermined support position, but the support frame can also be prevented from rotating excessively, thereby improving the reliability and stability of the structure during use.

[0011] In one alternative embodiment, when the first support rotates to abut against the stop, the stop and the connection between the first support and the second support are vertically spaced apart.

[0012] Beneficial effects: When the second support is used to support the boom, the new support point formed on the side of the support frame facing the transport platform can be located directly below the connection, thus providing more stable support to the support frame. This allows the load from the connection between the first and second support parts to be directly transferred vertically to the stop, preventing the connection from being suspended under stress, thereby reducing the possibility of bending deformation at the connection point and minimizing the risk of deformation of the first support part.

[0013] In one alternative embodiment, the stop includes: Fixing blocks are installed onto the transport platform; Limiting plates are provided on both sides of the fixing block along the first direction. The first support part abuts against the fixing block, and the limiting plates abut against both sides of the first support part.

[0014] Beneficial effects: Therefore, while providing support to the first support part, it can also limit its movement laterally, thereby preventing the first support part from shifting during the stress process.

[0015] In one optional embodiment, the limiting plate is provided with a first locking hole, the first support part includes a second locking hole corresponding to the first locking hole, and the stop part also includes a locking member, which is inserted and fixed to the first locking hole and the second locking hole.

[0016] Beneficial effects: The locking member can be connected to the first locking hole and the second locking hole to lock the first support portion onto the stop portion, so as to prevent the first support portion from disengaging from the stop portion.

[0017] In one alternative embodiment, a drive structure is installed on the transport platform, the drive structure is connected to the first support part, and the drive structure is adapted to drive the first support part to rotate.

[0018] Beneficial effects: Therefore, when the operator determines that a boom needs to be installed, the first support unit can be rotated relative to the transport platform via the drive structure before heading to the construction site, causing the second support unit to move to the support position. Subsequently, the boom is installed on the telescopic boom, and the second support unit supports the boom, allowing it to be transported to the construction site along with the telescopic boom. In other words, by driving the first support unit to rotate towards the stop at the aforementioned angle and abut against the stop, the second support unit rotates to a vertical position, thus forming a new support point on the side of the support frame facing the transport platform, allowing the boom to be stably supported on the second support unit.

[0019] In one alternative implementation, the driving structure includes: Support base, installed onto the transport platform; The flip seat is rotatably connected to the support seat. The end of the flip seat has a connecting end face. The first support part is connected to the connecting end face. The flip seat is connected to the drive source for transmission.

[0020] Beneficial effects: Therefore, the drive motor applies torque to the flipping seat through the rotating shaft, which can drive the support frame to rotate relative to the support seat in the first direction, thereby selectively switching the first support part and the second support part to the support position or the storage position.

[0021] In one alternative embodiment, a recess is formed on the top surface of the support base, and a flip seat is rotatably connected to the recess. The periphery of the two side walls of the recess along the first direction is arc-shaped, and a flange is formed on the flip seat to abut against the two side walls. The flange is configured to slide along the periphery of the side walls of the recess around the first direction.

[0022] Beneficial effects: The load is directly transferred to the support seat through the flange, avoiding excessive shear stress on the rotating bearing and thus preventing deformation. At the same time, since the top of the second and third side plates and the outer periphery on the side opposite to the first side plate are all arc-shaped, the flange can slide along the arc-shaped outer periphery throughout the rotation, achieving smooth and unobstructed rotation.

[0023] In one alternative embodiment, the first support portion includes: The first support rod and the second support rod are arranged opposite to each other and inclined towards each other. The end of the first support rod is provided with a first support seat and the end of the second support rod is provided with a second support seat. When the first support part is in the support state, the first support seat and the second support seat support the end of the telescopic arm. Beneficial effects: This allows the telescopic boom to receive balanced support during transport or parking, reducing eccentric loading or localized stress concentration caused by unilateral force, and further improving the overall stability and reliability of the support.

[0024] In one alternative embodiment, the second support includes: The third and fourth support rods are arranged opposite each other and inclined towards each other. The end of the third support rod is provided with a third support seat, and the end of the fourth support rod is provided with a fourth support seat. When the second support part is in the support state, the third and fourth support seats support the end of the flying arm.

[0025] Beneficial effects: This allows the boom to receive balanced support during transport or parking, reducing eccentric loading or localized stress concentration caused by unilateral force, and further improving the overall stability and reliability of the support. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of a boom support structure supporting a flying boom according to one embodiment; Figure 2 This is a schematic diagram of a boom support structure according to one embodiment; Figure 3 This is a side view of a boom support structure according to one embodiment; Figure 4 This is a schematic diagram of a support frame, a stop, and a drive structure according to one embodiment; Figure 5 This is a schematic diagram of a support frame according to one embodiment; Figure 6 This is a partial schematic diagram of the driving structure of one embodiment; Figure 7 This is a schematic diagram of the stop portion in one embodiment; Figure 8 This is a schematic diagram of a boom support structure supporting a telescopic boom, as shown in one embodiment.

[0028] Explanation of reference numerals in the attached figures: 100. Transport platform; 110. Load-bearing plate; 120. Load-bearing frame; 200, Support frame; 210, First support part; 211, First support rod; 212, Second support rod; 213, First support seat; 214, Second support seat; 220, Second support part; 221, Third support rod; 222, Fourth support rod; 223, Third support seat; 224, Fourth support seat; 230, First connecting rib; 240, Second connecting rib; 250, Second locking hole; 300. Telescopic boom; 400, Flying Arm; 500, Stop; 510, Fixing block; 520, Limiting plate; 530, Pad; 540, First locking hole; 600, Drive structure; 610, Support base; 611, Third locking hole; 620, Flip base; 621, Rotating shaft; 622, Connecting plate; 623, Flat plate; 630, Connecting end face; 631, Flange; 640, Recess; 641, Outer periphery; 642, First side plate; 643, Second side plate; 644, Third side plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] refer to Figures 1 to 7 The boom support structure includes a transport platform 100 and a support frame 200. The transport platform 100 supports the boom structure and can be formed by the load-bearing structure of the boom transport equipment itself, such as the load-bearing frame on the chassis of a folding boom crane; alternatively, it can be other suitable load-bearing structures additionally installed or added to the transport equipment. The support frame 200 is connected to the transport platform 100 and is movable relative to the transport platform 100.

[0031] Specifically, the support frame 200 includes a first support portion 210 and a second support portion 220. The first support portion 210 is used to support the telescopic boom 300 (i.e., the main boom) of the boom, and the second support portion 220 is used to support the jib 400 portion of the boom.

[0032] The support frame 200 is configured to move relative to the transport platform 100 to have a first position and a second position. When the support frame 200 is in the first position, the first support portion 210 is in a supported state, that is, the support frame 200 moves relative to the transport platform 100 until the first support portion 210 is in the supported position, while the second support portion 220 is in a retracted state, that is, the second support portion 220 is moved to a position other than the supported position. At this time, refer to... Figure 8 The telescopic boom 300 of the crane without the boom 400 installed can be lowered to abut against the first support 210.

[0033] When the support frame 200 is in the second position, that is, when the support frame 200 has moved relative to the transport platform 100 to the second support portion 220 being in the supported position, while the first support portion 210 is in the retracted state, that is, when the first support portion 210 has been moved to a position different from the supported position. At this time, refer to Figure 1 The telescopic boom 300 and the flying boom 400 mounted thereon can be lowered to abut against the second support 220, thereby obtaining reliable support.

[0034] Therefore, during transport, the boom 400, while still mounted on the telescopic boom 300, is supported and restrained by the second support unit 220, forming an integral structure with the main boom, and is transported to the construction site along with the vehicle. Furthermore, when the equipment needs to be moved between multiple sites, there is no need to repeatedly disassemble and reassemble the boom 400, thus reducing the time and labor costs associated with loading and unloading operations.

[0035] Compared to related technologies that require separate transportation of the boom 400, this embodiment eliminates the need for a dedicated trailer, effectively reducing transportation costs and simplifying the organization and scheduling of equipment transfer. Furthermore, the second support 220 provides stable support for the boom 400, ensuring reliable support and constraint during transportation and reducing swaying or uneven stress on the boom 400, thereby improving the overall stability and safety of the transportation process. This not only enhances the reliability of equipment transportation but also further improves the convenience and operational efficiency of the equipment in actual use.

[0036] It should also be noted that due to differences in structural design and lifting performance between the telescopic boom 300 and the boom 400, their cross-sectional dimensions along their respective axial vertical directions are not the same. Typically, the cross-sectional dimension of the boom 400 is smaller than that of the telescopic boom 300. This means that a structure capable of supporting the telescopic boom 300 cannot be directly used to support the boom 400. However, the support frame 200 of this embodiment, through its first support portion 210 and second support portion 220, can respectively support the telescopic boom 300 and the boom 400, effectively solving the problem of the incompatibility of support structures between different structural components.

[0037] Therefore, operators can determine whether the boom 400 needs to be installed based on the actual application conditions of the construction site. When it is confirmed that the boom 400 needs to be installed, the second support 220 can be moved to the support position by adjusting the position of the support frame 200 relative to the transport platform 100 before heading to the construction site. Subsequently, the boom 400 is installed on the telescopic boom 300, and the second support 220 supports the boom 400, so that the boom 400 can be transported to the construction site together with the telescopic boom 300.

[0038] In an optional embodiment, refer to Figure 2 and Figure 3 The first support portion 210 is rotatably connected to the support platform and can rotate around a first direction. The second support portion 220 is connected to the first support portion 210 on one side along a second direction and is set at an angle to the first support portion 210, wherein the first direction and the second direction are perpendicular to each other. Thus, when the first support portion 210 rotates at an angle relative to the support platform, the second support portion 220 can move to a supporting position, thereby providing support for the flying arm 400.

[0039] In this embodiment, the first direction and the second direction are horizontal. In this embodiment, the second direction can be the axial direction of the boom, and the first direction is perpendicular to the second direction.

[0040] Specifically, in this embodiment, the support direction of both the first support portion 210 and the second support portion 220 is vertical. In other words, when the first support portion 210 is used to support the telescopic arm 300, the first support portion 210 is rotated to be parallel to the vertical, that is, the support frame 200 is rotated to the first position; when the second support portion 220 is used to support the flying arm 400, the second support portion 220 is rotated to a position parallel to the vertical, that is, the support frame 200 is rotated to the second position.

[0041] Therefore, by driving the first support part 210 to rotate from a vertical direction away from the second support part 220, the included angle between the first support part 210 and the second support part 220 can be rotated to be parallel to the vertical, thereby achieving support for the flying arm 400. This provides stable and reliable support and constraint for the flying arm 400 during transportation, reducing swaying or uneven stress on the flying arm 400, thus further improving the stability and safety of the overall transportation process.

[0042] The first support portion 210 described above can have any suitable structure. (See reference) Figure 5 In the illustrated embodiment, the first support portion 210 may include a first support rod 211 and a second support rod 212. The first support rod 211 and the second support rod 212 are arranged opposite to each other to provide stable support for the telescopic arm 300. That is, the first support rod 211 and the second support rod 212 may be symmetrically arranged along the axial center plane of the telescopic arm 300, which is parallel to the vertical axis. This allows the telescopic arm 300 to receive a balanced support force during transportation or parking, reducing the phenomenon of eccentric loading or local stress concentration caused by unilateral force, and further improving the stability and reliability of the overall support.

[0043] A first support seat 213 may be provided at the end of the first support rod 211, and a second support seat 214 may be provided at the end of the second support rod 212. Similarly, the first support seat 213 and the second support seat 214 may also be arranged opposite to each other. When the first support part 210 is in a supported state, the first support seat 213 and the second support seat 214 support the end of the telescopic arm 300, thereby increasing the support area of ​​the ends of the first support rod 211 and the second support rod 212, thereby improving the support stability of the telescopic arm 300. That is to say, the first support seat 213 and the second support seat 214 may also be symmetrically arranged along the axial center plane of the telescopic arm 300 that is parallel to the vertical.

[0044] Among them, reference Figure 7 The first support rod 211 and the second support rod 212 can be inclined towards each other. Similarly, the surface of the first support seat 213 supporting the telescopic arm 300 and the surface of the second support seat 214 supporting the telescopic arm 300 are both perpendicular to the extension direction of the corresponding first support rod 211 and the second support rod 212, so that the telescopic arm 300 can be simultaneously subjected to vertical and horizontal limiting support, thereby forming multi-directional constraints on the telescopic arm 300 and preventing the telescopic arm 300 from swaying along the first direction during transportation.

[0045] Therefore, this embodiment not only increases the contact area between the support and the telescopic boom 300, reducing the force per unit area, but also provides a more stable limiting and supporting effect for the telescopic boom 300 through the opposing inclined structure of the first support rod 211 and the second support rod 212. This effectively reduces swaying or displacement of the telescopic boom 300 during transportation, further improving the overall stability and safety of the boom during transport.

[0046] In this embodiment, a first connecting rib 230 extending along a first direction and connecting the first support rod 211 and the second support rod 212 can be provided between the first support rod 211 and the second support rod 212, thereby enhancing the stability of the support provided by the first support rod 211 and the second support rod 212 to the telescopic arm 300. Similarly, a second connecting rib 240 can be provided between the third support rod 221 and the fourth support rod 222.

[0047] The second support portion 220 described above can have any suitable structure. (See reference) Figure 5 In the illustrated embodiment, the second support portion 220 may include a third support rod 221 and a fourth support rod 222. The third support rod 221 and the fourth support rod 222 are arranged opposite to each other to provide stable support for the boom 400. That is, the third support rod 221 and the fourth support rod 222 can be symmetrically arranged along the central plane of the boom 400, which is parallel to the vertical axis. This allows the boom 400 to receive a balanced support force during transportation or parking, reducing eccentric loading or localized stress concentration caused by unilateral force, and further improving the overall stability and reliability of the support. It should be noted that the axis of the boom 400 is parallel to the axis of the telescopic boom 300.

[0048] A third support 223 may be provided at the end of the third support section, and a fourth support 224 may be provided at the end of the fourth support rod 222. Similarly, the third support 223 and the fourth support 224 may be arranged opposite to each other. When the second support section 220 is in a supported state, the third support 223 and the fourth support 224 support the end of the flying arm 400, thereby increasing the supporting area of ​​the ends of the third support rod 221 and the fourth support rod 222, thus improving the support stability of the flying arm 400. In other words, the third support 223 and the fourth support 224 may also be symmetrically arranged along the axial center plane of the flying arm 400, which is parallel to the vertical axis.

[0049] Among them, reference Figure 7The third support rod 221 and the fourth support rod 222 can be inclined towards each other. Similarly, the surface of the third support 223 supporting the flying arm 400 and the surface of the fourth support 224 supporting the flying arm 400 are perpendicular to the extension direction of the corresponding third support rod 221 and the fourth support rod 222, so that the flying arm 400 can be simultaneously subjected to vertical and horizontal limiting support, thereby forming multi-directional constraints on the flying arm 400 and preventing the flying arm 400 and the telescopic arm 300 on which the flying arm 400 is installed from shaking along the first direction during transportation.

[0050] Therefore, this embodiment not only increases the contact area between the support and the boom 400, reducing the force per unit area, but also provides a more stable limiting and supporting effect for the boom 400 and the telescopic boom 300 on which the boom 400 is mounted, through the opposing inclined structure of the third support rod 221 and the fourth support rod 222. This effectively reduces swaying or displacement of the boom 400 and the telescopic boom 300 during transportation, further improving the overall stability and safety of the crane boom during transport.

[0051] In this embodiment, a second connecting rib 240 extending along the first direction and connecting the third support rod 221 and the fourth support rod 222 can also be provided between the third support rod 221 and the fourth support rod 222, thereby enhancing the stability of the support provided by the third support rod 221 and the fourth support rod 222 to the flying arm 400.

[0052] In an optional embodiment, combined with Figure 2 and Figure 3 The boom support structure also includes a stop 500. When the support frame 200 rotates to the second support portion 220 in the supported position, the first support portion 210 can abut against the stop 500, thereby restricting the first support portion 210 from continuing to rotate. The stop 500 is located on the side of the first support portion 210 opposite to the second support portion 220. When the support frame 200 is rotated toward the stop 500, the first support portion 210 gradually approaches the stop 500 and eventually abuts against it, at which point the second support portion 220 is in the supported position. That is, when combined with... Figure 2As shown, when the first support portion 210 rotates approximately at the aforementioned included angle toward the stop portion 500 and abuts against the stop portion 500, the second support portion 220 rotates accordingly to a vertical position, thereby forming a new support point on the side of the support frame 200 facing the transport platform 100. This allows the flying arm 400 to be stably supported on the second support portion 220. Through the limiting effect of the stop portion 500, not only is it ensured that the second support portion 220 accurately rotates to the predetermined support position, but excessive rotation of the support frame 200 is also prevented, thus improving the reliability and stability of the structure during use. Therefore, a new support point is formed on the side of the support frame 200 facing the transport platform 100 to provide stable support for the flying arm 400.

[0053] In an optional embodiment, refer to Figure 1 When the first support portion 210 rotates to abut against the stop portion 500, the stop portion 500 can be arranged vertically and spaced apart from the connection between the first support portion 210 and the second support portion 220. When the second support portion 220 is used to support the boom 400, the new support point formed on the side of the support frame 200 facing the transport platform 100 can be located directly below the connection, thereby providing more stable support to the support frame 200. This allows the load from the connection between the first support portion 210 and the second support portion 220 to be directly transmitted vertically to the stop portion 500, preventing the connection from being suspended under stress. This reduces the possibility of bending deformation at the connection point and the risk of deformation of the first support portion 210. It also reduces the lateral swaying or overturning tendency of the support frame 200 during the stress process, allowing the boom 400 to maintain a more stable posture when supported by the second support portion 220, thereby further improving the safety of the boom during transportation.

[0054] In an optional embodiment, refer to Figure 3 and Figure 7 The aforementioned stop portion 500 may include a fixing block 510 and a limiting plate 520. The fixing block 510 may be fixedly connected to the transport platform 100 by any suitable means such as plugging, snapping, or welding, to form a fixed connection structure between the stop portion 500 and the transport platform 100. Figure 4 It can be seen that the fixing block 510 is provided with limiting plates 520 on both sides along the first direction. The limiting plates 520 are configured to abut against both sides of the first support portion 210 after the first support portion 210 abuts against the fixing block 510, thereby constraining the first support portion 210 between the two limiting plates 520.

[0055] The fixing block 510 can be configured as two, respectively supporting the first support plate and the second support plate. That is, the two limiting plates 520 on each fixing block 510 form a limiting groove, and the two limiting grooves are adapted to the shapes of the first support plate and the second support plate of the first support part 210, allowing the first support plate and the second support plate to be inserted into the corresponding limiting grooves. Thus, while providing support to the first support part 210, it can also be laterally limited, thereby preventing the first support part 210 from shifting under force.

[0056] In an optional embodiment, refer to Figure 5 as well as Figure 7 The limiting plate 520 has a first locking hole 540, the first support portion 210 includes a second locking hole 250 corresponding to the first locking hole 540, and the stop portion 500 also includes a locking member. The locking member can be inserted and fixed into the first locking hole 540 and the second locking hole 250, thereby locking the first support portion 210 onto the stop portion 500 to prevent the first support portion 210 from disengaging from the stop portion 500.

[0057] Both the first locking hole 540 and the second locking hole 250 can be constructed as a strip-shaped waist-shaped hole structure. The second locking hole 250 can be formed at corresponding positions on the first support rod 211 and the second support rod 212, and is disposed through the first support rod 211 and the second support rod 212, while extending along their rod length direction. Each limiting plate 520 can be formed with a first locking hole 540, and the first locking hole 540 can be disposed vertically. In this embodiment, the locking member can be inserted from the first locking hole 540 of one limiting plate 520, and sequentially pass through the second locking hole 250 through the first support part 210 and the first locking hole 540 on the other limiting plate 520, thereby realizing the locking of the first support part 210.

[0058] The locking components include, but are not limited to, pin structures and bolt-nut structures. The limiting plates 520 on both sides can be integrally formed, for example, by bending both sides of a deformable plate upwards. This deformable plate has a portion that fits against the top surface of the fixing block 510, and this portion can be fixed to the fixing block 510 by any suitable method such as welding. A pad 530 can be installed on its surface opposite to the fixing block 510, and the aforementioned first support portion 210 can abut against the fixing block 510.

[0059] In an optional embodiment, a drive structure 600 may also be installed on the transport platform 100. This drive structure 600 is connected to the first support portion 210 and is adapted to drive the first support portion 210 to rotate. Thus, when the operator determines that a flying boom 400 needs to be installed, the drive structure 600 can be used to drive the first support portion 210 relative to the transport platform 100 before heading to the construction site, causing the second support portion 220 to move to the supporting position. Subsequently, the flying boom 400 is installed on the telescopic boom 300, and the second support portion 220 supports the flying boom 400, allowing the flying boom 400 to be transported to the construction site along with the telescopic boom 300. That is, in combination with... Figure 2 As shown, the first support part 210 is driven to rotate toward the stop part 500 at the aforementioned angle by the drive structure 600 and abut against the stop part 500. The second support part 220 then rotates to a vertical position, thereby forming a new support point on the side of the support frame 200 facing the transport platform 100, so that the flying arm 400 can be stably supported on the second support part 220.

[0060] The aforementioned drive structure 600 can have any suitable structural form. (See reference) Figure 2 , Figure 3 as well as Figure 4 In the embodiment shown, the drive structure 600 may include a support base 610 and a tilting base 620. The support base 610 serves as the mounting connection between the drive structure 600 and the transport platform 100, while the tilting base 620 serves as the connection structure between the drive structure 600 and the first support portion 210, thereby enabling the first support portion 210 to rotate by rotating the tilting base 620.

[0061] Specifically, combined Figure 6 The support base 610 can be fixedly connected to the transport platform 100 by any suitable means such as plugging, snapping, or welding. The tilting base 620 is rotatably connected to the support base 610 so that the tilting base 620 can rotate relative to the support base 610 about a first direction. The end of the tilting base 620 is formed with a connecting end face 630, which is used to connect with the first support part 210. Thus, the tilting base 620 can be rotatably connected to the drive end of a drive source (e.g., a drive motor). The drive source applies torque to the tilting base 620, causing the tilting base 620 to drive the first support part 210 to rotate relative to the transport platform 100, thereby realizing the tilting action of the support frame 200.

[0062] Therefore, two support bases 610 and flip bases 620 can be provided, and each can be fixedly connected to the first support rod 211 and the second support rod 212 respectively. Taking the fixed connection between the first support rod 211 and the flip base 620 as an example, refer to... Figure 4The first support rod 211 can be fixedly connected to the end of the flip base 620 forming the connecting end face 630 by welding, bolting, or any other suitable method. Similarly, the second support rod 212 can be fixedly connected to the corresponding flip base 620 by the same structure.

[0063] Therefore, the support frame 200 can be automatically tilted with one button via the aforementioned drive structure 600, thus solving the problem of difficulty in manual tilting due to the large weight of the boom bracket. The start and tilt buttons for controlling the drive motor can be located on the control panel of the cab dashboard for easy operation. Pressing the start button connects the vehicle's power supply and powers the drive motor.

[0064] Simultaneously, the motor can be controlled to rotate clockwise or counterclockwise by alternating current, thereby driving the support frame 200 to complete the flipping action. In addition, the drive structure 600 can be adapted to the weight of the support frame 200 and the required output torque, for example, by selecting a single motor drive or a dual motor cooperative drive (i.e., setting two drive motors), thereby improving drive reliability while meeting the flipping requirements.

[0065] In an optional embodiment, refer to Figure 6 The flip-up base 620 includes a rotating shaft 621 and a connecting plate 622. The connecting plate 622 has a through hole that matches the rotating shaft 621, so that the connecting plate 622 and the rotating shaft 621 are fixedly connected.

[0066] Furthermore, the rotating shaft 621 is fixedly connected to the output end of the drive motor, used to transmit the torque of the drive motor to the rotating shaft 621, driving the rotating shaft 621 to rotate. Both ends of the rotating shaft 621 are respectively fitted with corresponding rotating holes on the support base 610, thereby rotatably mounting it on the support base 610. The end of the connecting plate 622 extends out of the support base 610 and is fixedly connected to a flat plate 623. The end face of the flat plate 623 forms the aforementioned connecting end face 630, used for fixed connection with the first support rod 211 and the second support rod 212.

[0067] Therefore, the drive motor applies torque to the flip seat 620 through the rotating shaft 621, which can drive the support frame 200 to rotate relative to the support seat 610 in the first direction, thereby selectively switching the first support part 210 and the second support part 220 to the support position or the storage position.

[0068] In an alternative embodiment, reference is still made to Figure 6The top surface of the support base 610 forms a recess 640. Specifically, the support base 610 includes a base plate, and the top surface of the base plate is sequentially provided with and connected to a first side plate 642, a second side plate 643, and a third side plate 644 along its circumference, which together enclose and form the recess 640. Among them, the second side plate 643 and the third side plate 644 are arranged opposite to each other in a first direction, and the first side plate 642 is located on the opposite side of the flip base 620 rotating toward the stop portion 500, thereby forming an opening on the opposite side, allowing the flip base 620 to rotate accordingly.

[0069] The bottom end of the flip base 620 is housed within the recess 640, and the drive end of the drive motor is connected to the bottom end of the flip base 620 (i.e., the rotating shaft 621 is rotatably disposed within the recess 640, and the connecting plate 622 extends into the recess 640 and is fixed to the rotating shaft 621). The outer periphery 641 of the two side walls (i.e., the second side plate 643 and the third side plate 644) of the recess 640 along the first direction is constructed in an arc shape; correspondingly, the flip base 620 (specifically, the surface of the flat plate 623 facing the rotating shaft 621) is formed with a flange 631, which abuts against the arc-shaped outer periphery 641 to provide vertical support force to the flip base 620 when the first support 210 supports the telescopic arm 300.

[0070] Specifically, two flanges 631 may be provided, and each flange 631 has its end face concave inward to form an arc surface, so as to fit against the arc-shaped outer periphery 641. The two flanges 631 are arranged at intervals along the first direction, respectively abutting against the outer periphery 641 of the second side plate 643 and the third side plate 644. When the flip seat 620 rotates to the position where the connecting rod is vertical (i.e., the first support part 210 is in the vertical support position), the flanges 631 abut against the tops of the second side plate 643 and the third side plate 644, thereby directly transmitting the load to the support seat 610 through the flanges 631, avoiding excessive shear stress on the rotating shaft 621 and causing deformation. At the same time, since the tops of the second side plate 643 and the third side plate 644 and the outer periphery 641 on the side opposite to the first side plate 642 are arc-shaped, the flanges 631 can always slide along the arc-shaped outer periphery 641 during rotation, achieving smooth rotation without obstruction.

[0071] In addition, a third locking hole 611 is provided on both the second side plate 643 and the third side plate 644. The third locking hole 611 can be matched with the second locking hole 250 on the support frame 200. When the first support part 210 is in the vertical position, a locking structure such as a pin is provided to reliably lock the support frame 200 and prevent accidental displacement.

[0072] In an optional embodiment, refer to Figure 3The carrying platform can be formed by the carrying structure of the boom transport equipment itself, such as the carrying frame on the frame of a folding boom crane vehicle; or it can be other suitable carrying structures additionally set or added to the transport equipment. For example, it may include a carrying frame 120 and a carrying plate 110. The carrying frame 120 can be installed on the vehicle body, and the carrying plate 110 is installed on the top of the carrying frame 120. The aforementioned support frame 200 and other structures can be installed on the carrying plate 110.

[0073] Therefore, in this embodiment, the operator first makes a judgment based on the actual application conditions of the construction site to determine whether it is necessary to install a flying arm 400.

[0074] When it is determined that the boom 400 is not needed, the first support 210 is driven into a supporting position by adjusting the support frame 200, and the telescopic boom 300 is controlled to retract and lower itself onto the first support 210 before being transported to the construction site. When it is determined that the boom 400 needs to be installed, the second support 220 is moved to a supporting position by adjusting the position of the support frame 200 relative to the transport platform 100 before heading to the construction site. Subsequently, the boom 400 is installed on the telescopic boom 300, and the second support 220 supports the boom 400, so that the boom 400 can be transported to the construction site together with the telescopic boom 300.

[0075] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A boom support structure, characterized in that, include: Transport platform (100); A support frame (200) is disposed on the transport platform (100) and is movable relative to the transport platform (100). The support frame (200) includes a first support part (210) and a second support part (220). The support frame (200) is configured to move relative to the transport platform (100) to have a first position and a second position. When the support frame (200) is in the first position, the first support part (210) is in a supported state and the second support part (220) is in a retracted state, and the first support part (210) supports the telescopic arm (300). When the support frame (200) is in the second position, the second support part (220) is in a supported state and the first support part (210) is in a retracted state, and the second support part (220) is used to support the flying arm (400).

2. The boom support structure according to claim 1, characterized in that, The first support (210) is rotatably connected to the transport platform (100) and rotates about a first direction. The second support (220) is connected to one side of the first support (210) along a second direction and is set at an angle to the first support (210). The first direction is perpendicular to the second direction.

3. The boom support structure according to claim 2, characterized in that, The boom support structure also includes: A stop (500) is provided on the transport platform (100). Along the second direction, the stop (500) is located on the side of the first support (210) away from the second support (220). When the second support (220) is in a supporting state, the first support (210) rotates to abut against the stop (500).

4. The boom support structure according to claim 3, characterized in that, When the first support part (210) rotates to abut against the stop part (500), the stop part (500) and the connection between the first support part (210) and the second support part (220) are arranged vertically at intervals.

5. The boom support structure according to claim 3, characterized in that, The stop (500) includes: The fixing block (510) is installed on the transport platform (100); Limiting plates (520) are provided on both sides of the fixing block (510) along the first direction. The first support part (210) abuts against the fixing block (510), and the limiting plates (520) abut against both sides of the first support part (210).

6. The boom support structure according to claim 5, characterized in that, The limiting plate (520) has a first locking hole (540), the first support part (210) includes a second locking hole (250) corresponding to the first locking hole (540), and the stop part (500) also includes a locking member, which is connected to the first locking hole (540) and the second locking hole (250).

7. The boom support structure according to any one of claims 2-6, characterized in that, A drive structure (600) is installed on the transport platform (100), the drive structure (600) is connected to the first support part (210), and the drive structure (600) is adapted to drive the first support part (210) to rotate.

8. The boom support structure according to claim 7, characterized in that, The drive structure (600) includes: Support base (610) is installed on the transport platform (100). A flip seat (620) is rotatably connected to the support seat (610). A connecting end face (630) is formed at the end of the flip seat (620). The first support part (210) is connected to the connecting end face (630). The flip seat (620) is connected to the drive source.

9. The boom support structure according to claim 8, characterized in that, The top surface of the support base (610) has a recess (640), and the flip base (620) is partially rotatably connected to the recess (640). The outer periphery (641) of the two side walls of the recess (640) along the first direction is arc-shaped. The flip base (620) has a flange (631) that abuts against the two side walls. The flange (631) is configured to slide along the outer periphery (641) of the side wall of the recess (640) around the first direction.

10. The boom support structure according to any one of claims 1-6, characterized in that, The first support portion (210) includes: The first support rod (211) and the second support rod (212) are arranged opposite to each other and inclined towards each other. The end of the first support rod (211) is provided with a first support seat (213), and the end of the second support rod (212) is provided with a second support seat (214). When the first support part (210) is in the support state, the first support seat (213) and the second support seat (214) support the end of the telescopic arm (300). And / or: The second support portion (220) includes: The third support rod (221) and the fourth support rod (222) are arranged opposite to each other and inclined towards each other. The end of the third support rod (221) is provided with a third support seat (223) and the end of the fourth support rod (222) is provided with a fourth support seat (224). When the second support part (220) is in the support state, the third support seat (223) and the fourth support seat (224) support the end of the flying arm (400).

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