Roadway hoisting device and vehicle

Abstract

The application relates to the technical field of hoisting devices, and provides a roadway hoisting device and a vehicle. The roadway hoisting device comprises a hoisting arm assembly and a connecting assembly, the connecting assembly connects the hoisting arm assembly and a plate car, the connecting assembly comprises a limiting part and a driving part; the hoisting arm assembly is connected with the limiting part, and the driving part can drive the hoisting arm assembly to move along the width direction of the plate car, so as to adjust the rotation center of the hoisting arm assembly. The connecting assembly comprises the limiting part and the driving part, the driving part cooperates with the limiting part to drive the hoisting arm assembly to move transversely, the rotation center of the hoisting arm assembly is adjusted, the limitation of the hoisting radius and the rotation angle of the hoisting device by the roadway is reduced, the hoisting working condition of the roadway is suitable for change, and the flexibility of the roadway hoisting device is improved.

Description

Technical Field

[0001] This application relates to the field of lifting device technology, and in particular to a roadway lifting device and vehicle. Background Technology

[0002] Roadways are common working spaces in mining and underground engineering construction. Equipment installation and material transfer inside roadways usually require the use of lifting equipment. However, due to the narrow space of the roadway working environment, it is difficult to install conventional truck cranes and gantry cranes and other large lifting equipment in roadways.

[0003] In related technologies, lifting devices suitable for construction operations in tunnels are usually mounted on flatbed trucks, which allows for flexible movement within the tunnel along its extension direction. However, the narrow working space within the tunnel limits the rotation radius and angle of the lifting arm, which is not conducive to improving the flexibility of the tunnel lifting device. Summary of the Invention

[0004] In view of this, the present application aims to provide a roadway lifting device to improve the flexibility of roadway lifting devices.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows: A tunnel lifting device, suitable for mounting on a flatbed truck, includes a boom assembly and a connecting assembly, the connecting assembly connecting the boom assembly and the flatbed truck, the connecting assembly including a limiting part and a driving part; The boom assembly is connected to the limiting part, and the driving part can drive the boom assembly to move along the width direction of the trolley so as to adjust the rotation center of the boom assembly.

[0006] Furthermore, the limiting portion includes a slider, and the boom assembly is connected to the slider; the slider is connected to the driving portion, and the driving portion can drive the slider to slide along the width direction.

[0007] Furthermore, the connecting component includes a counterweight portion, which is disposed on one side of the limiting portion along the length direction of the boardcart. The counterweight portion includes a counterweight support member. The driving portion is connected to the counterweight support member so that the slider and the counterweight support member can move to different sides along the width direction.

[0008] Furthermore, the limiting portion includes a limiting cylinder that extends along the width direction and has a limiting groove. The slider is disposed within the cavity of the limiting cylinder, and a portion of the slider protrudes out of the cavity through the limiting groove and connects to the boom assembly. The counterweight portion includes a guide cylinder and a guide block. The guide cylinder extends along the width direction and has a guide groove. The guide block is slidably disposed within the cavity of the guide cylinder, and a portion of the guide block extends out of the guide cylinder through the guide groove to form the counterweight support member.

[0009] Furthermore, the driving component includes a driving member, a first lead screw, a first lead screw nut, a second lead screw, a second lead screw nut, and a transmission member; the first lead screw passes through the limiting cylinder, the first lead screw nut is configured to cooperate with the first lead screw and is connected to the slider; the second lead screw passes through the guide cylinder, the second lead screw nut is configured to cooperate with the second lead screw and is connected to the guide block; the driving member is connected to one end of the first lead screw, the transmission member is located at the other end of the first lead screw, the transmission member connects the first lead screw and the second lead screw, and drives the first lead screw to rotate with the driving member, and the transmission member enables the second lead screw to rotate synchronously.

[0010] Furthermore, the counterweight portion includes counterweight blocks; multiple counterweight blocks are provided, and the multiple counterweight blocks are detachably connected to the counterweight support member.

[0011] Furthermore, the boom assembly includes a slewing section, a base section, and a luffing telescopic section; the base section extends along the height direction of the flatbed truck, the slewing section is rotatably connected to the base section and a limiting section, and one end of the luffing telescopic section is hinged to the base section; a telescopic member is provided between the luffing telescopic section and the base section, and the telescopic member is hinged to the luffing telescopic section and the base section to adjust the pitch angle of the luffing telescopic section.

[0012] Furthermore, the telescopic component includes a hydraulic cylinder; and / or, the rotating portion includes a slewing bearing.

[0013] Furthermore, the variable amplitude telescopic section includes a basic arm and a telescopic joint slidably sleeved within the basic arm. The telescopic joint can extend out of the basic arm or be retracted into the basic arm along the extension direction of the basic arm.

[0014] Compared with related technologies, this application has the following advantages: (1) The roadway lifting device described in this application, by setting a connecting component including a limiting part and a driving part, enables the driving part to cooperate with the limiting part to drive the boom assembly to move laterally, thereby adjusting the rotation center of the boom assembly, which helps to reduce the roadway's restrictions on the lifting radius and rotation angle of the lifting device, and is suitable for the varied lifting conditions in the roadway, thus improving the flexibility of the roadway lifting device.

[0015] (2) By using a slider as the sliding limit carrier of the boom assembly, the slider constrains the sliding trajectory of the boom assembly and receives the power output of the drive part, thereby avoiding boom deviation and ensuring a smooth and reliable adjustment process of the slewing center.

[0016] (3) By setting a counterweight bearing component and enabling the counterweight bearing component to slide in different directions with the slider, the counterweight offsets in the opposite direction during lifting operations to counteract the overturning moment of the boom and balance the load of the whole machine. At the same time, by enabling the counterweight bearing component to move in opposite directions with the slider under the action of the drive part, the counterweight changes adaptively with the lifting position of the boom, which helps to ensure the balanced force on the flatbed and improve the stability of operation.

[0017] (4) By setting a limiting cylinder with a limiting groove to accommodate the slider, and making the slider exposed through the limiting groove to connect to the boom assembly, the limiting cylinder and the limiting groove constrain the slider to slide only in the width direction of the trolley, thereby limiting the sliding trajectory of the boom, preventing the slider from moving or tilting, and ensuring the precise and smooth adjustment of the boom rotation center. At the same time, the limiting cylinder and the guide cylinder respectively realize the separate guiding and limiting of the slider and the guide block, and with the drive, the slider and the counterweight bearing component slide in opposite directions, so that the boom adjustment and counterweight adjustment are carried out simultaneously, the force on the whole machine is always balanced, and the safety and stability of the roadway lifting device are greatly improved.

[0018] (5) The transmission structure, which uses a single set of drive components in conjunction with transmission components to synchronously drive the first and second lead screws to rotate synchronously, requires only one power source to synchronously drive the boom-side slider and the counterweight-side guide block to move in opposite directions. This simplifies the drive power layout, reduces the number of power components, and lowers the assembly difficulty and overall production cost of the device. Furthermore, this configuration can utilize the self-locking characteristic of the screw pair's threads to automatically lock the slider and counterweight load-bearing components after they are adjusted to the target position, which helps improve operational stability.

[0019] (6) By setting counterweights, the total weight of the counterweights can be changed according to the lifting load, and different lifting weights can be flexibly matched to avoid uneven loads on the boom.

[0020] (7) By rotating the slewing part to connect the base part and the limiting part, the base is arranged vertically and the luffing telescopic part is hinged to the base, and a hinged telescopic component is installed between the two. The telescopic component's extension and retraction movement causes the luffing telescopic part to swing around the hinge point, thereby achieving the effect of controllably adjusting the pitch angle of the luffing telescopic part and changing the lifting height and working radius. At the same time, the slewing part can drive the luffing telescopic part to rotate. In conjunction with the luffing telescopic part, it can achieve multi-angle and multi-dimensional adjustment of the lifting point, which is conducive to further increasing the operating coverage of the lifting device.

[0021] (8) By setting up telescopic components including hydraulic cylinders, it is beneficial to design and implement telescopic components. Hydraulic cylinders have the characteristics of stable power output and strong load bearing capacity, which is beneficial to adjusting the pitch angle.

[0022] By including a slewing bearing in the slewing section, the design and implementation of the slewing section are facilitated, and the boom can rotate smoothly without jamming.

[0023] (9) By sliding the telescopic joint inside the basic arm, the telescopic joint can extend or retract along the extension direction of the basic arm, thereby changing the overall effective arm length of the luffing telescopic part as needed and flexibly adjusting the lifting operation radius.

[0024] Another object of this application is to provide a vehicle, including a flatbed truck equipped with the tunnel lifting device described above.

[0025] The vehicle described in this application, by being equipped with the tunnel lifting device as described above, can help improve the efficiency of material hoisting and transfer within the tunnel. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of the tunnel lifting device described in the embodiments of this application; Figure 2 for Figure 1 Front view of the structure shown; Figure 3 for Figure 1 Top view of the structure shown; Figure 4 This is a cross-sectional view of the connection component described in an embodiment of this application; Figure 5 This is a part drawing of the boom assembly described in the embodiments of this application; Explanation of reference numerals in the attached figures: 1. Boom assembly; 101. Slewing part; 1011. Slewing bearing; 102. Base part; 103. Luffing and telescopic part; 1031. Main boom; 1032. Telescopic joint; 104. Telescopic component; 1041. Hydraulic cylinder; 2. Connecting components; 201. Limiting part; 2011. Slider; 2012. Limiting cylinder; 2012a. Limiting groove; 2012b. Cavity; 202. Driving part; 2021. Driving component; 2022. First lead screw; 2023. First lead screw nut; 2024. Second lead screw; 2025. Second lead screw nut; 2026. Transmission component; 20261. First gear; 20262. Second gear; 203. Counterweight part; 2031. Counterweight bearing component; 2032. Guide cylinder; 2032a. Guide groove; 2032b. Cavity; 2033. Guide block; 2034. Counterweight block; 3. Flatbed cart. Detailed Implementation

[0027] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0029] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not 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 on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0031] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is 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. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0033] An embodiment of the first aspect of this application provides a roadway lifting device suitable for mounting on a flatbed cart 3, capable of lifting and transferring workpieces and materials in a roadway. Furthermore, through innovative design, this roadway lifting device can also improve the flexibility of the roadway lifting device.

[0034] In related technologies, lifting devices suitable for construction operations within roadways are typically mounted on a flatbed cart 3, which moves along the track within the roadway, allowing for flexible movement of the lifting device along the roadway's extension direction. However, the limited working space within the roadway can restrict the rotation radius and angle of the lifting arm, hindering the improvement of the roadway lifting device's flexibility.

[0035] In view of this, in order to overcome the shortcomings of related technologies, the roadway lifting device in this embodiment combines... Figures 1 to 5 As shown, the overall design includes a boom assembly 1 and a connecting assembly 2. The connecting assembly 2 connects the boom assembly 1 and the flatbed trolley 3. The connecting assembly 2 includes a limiting part 201 and a driving part 202.

[0036] The boom assembly 1 is connected to the limiting part 201, and the driving part 202 can drive the boom assembly 1 to move along the width direction of the trolley 3 so as to adjust the rotation center of the boom assembly 1.

[0037] Therefore, by setting the connecting component 2 to include a limiting part 201 and a driving part 202, the driving part 202, in conjunction with the limiting part 201, can drive the boom assembly 1 to move laterally, thereby adjusting the rotation center of the boom assembly 1. This helps to reduce the limitations of the roadway on the lifting radius and rotation angle of the lifting device, and is suitable for the varied lifting conditions in the roadway, thus improving the flexibility of the roadway lifting device.

[0038] Based on the above overview, it is worth noting that, in specific implementations, the boom assembly 1 in this embodiment preferably has a slewing function. This makes the boom assembly 1 more suitable for the varied lifting conditions within the roadway. Of course, it is also understandable that, in specific implementations, the boom assembly 1 can be configured not to slew. In this case, the connecting assembly 2 can still effectively adjust the lifting position of the boom assembly 1. However, in this preferred embodiment, the boom assembly 1 is configured to slew.

[0039] In some of the exemplary implementations, combined with Figure 1 and Figure 4 As shown, the limiting part 201 includes a slider 2011, and the boom assembly 1 is connected to the slider 2011. The slider 2011 is connected to the driving part 202, which can drive the slider 2011 to slide along the width direction.

[0040] Therefore, by using the slider 2011 as the sliding limit carrier of the boom assembly 1, the slider 2011 constrains the sliding trajectory of the boom assembly 1 and receives the power output of the drive part 202, thus achieving the effect of avoiding boom deviation and ensuring a smooth and reliable adjustment process of the slewing center.

[0041] In some of the exemplary implementations, combined with Figure 1 , Figure 2 and Figure 4 As shown, the connecting component 2 includes a counterweight part 203, which is located on one side of the limiting part 201 along the length direction of the flatbed 3. The counterweight part 203 includes a counterweight bearing member 2031.

[0042] The drive unit 202 is connected to the counterweight support member 2031 so that the slider 2011 and the counterweight support member 2031 can move to different sides along the width direction.

[0043] Therefore, by setting up a counterweight bearing component 2031 and enabling it to slide in different directions with the slider 2011, the counterweight's reverse offset can counteract the boom's overturning moment and balance the overall load during lifting operations. Simultaneously, by enabling the counterweight bearing component 2031 to move in opposite directions with the slider 2011 under the action of the drive unit 202, the counterweight adapts to the lifting position of the boom, which helps ensure balanced force distribution on the flatbed trolley 3 and improves operational stability.

[0044] In some of the exemplary implementations, combined with Figure 1 , Figure 3 and Figure 4As shown, the limiting part 201 includes a limiting cylinder 2012, which extends along the width direction. A limiting groove 2012a is formed on the limiting cylinder 2012. A slider 2011 is disposed in the cavity 2012b of the limiting cylinder 2012. Part of the slider 2011 protrudes out of the cavity 2012b through the limiting groove 2012a and is connected to the boom assembly 1.

[0045] The counterweight part 203 includes a guide cylinder 2032 and a guide block 2033. The guide cylinder 2032 extends along the width direction and has a guide groove 2032a. The guide block 2033 is slidably disposed in the cavity 2032b of the guide cylinder 2032. Part of the guide block 2033 extends to the outside of the guide cylinder 2032 through the guide groove 2032a to form a counterweight bearing member 2031.

[0046] Therefore, by setting a limiting cylinder 2012 with a limiting groove 2012a to accommodate the slider 2011, and making the slider 2011 exposed and connected to the boom assembly 1 through the limiting groove 2012a, the limiting cylinder 2012 and the limiting groove 2012a constrain the slider 2011 to slide only along the width direction of the trolley 3, thereby limiting the sliding trajectory of the boom, preventing the slider 2011 from moving or tilting, and ensuring that the boom rotation center adjustment action is precise and smooth.

[0047] At the same time, the limiting cylinder 2012 and the guide cylinder 2032 respectively realize the separate guiding and limiting of the slider 2011 and the guide block 2033. With the help of the drive, the slider 2011 and the counterweight bearing 2031 slide in opposite directions, so that the boom adjustment and counterweight adjustment are carried out simultaneously, the whole machine is always under balanced force, and the safety and stability of the roadway lifting device are greatly improved.

[0048] In some of the exemplary implementations, combined with Figures 1 to 4 As shown, the drive unit 202 includes a drive component 2021, a first lead screw 2022, a first lead screw nut 2023, a second lead screw 2024, a second lead screw nut 2025, and a transmission component 2026.

[0049] In specific implementation, the first lead screw 2022 is inserted into the limiting cylinder 2012, the first lead screw nut 2023 is configured to cooperate with the first lead screw 2022 and is connected to the slider 2011; the second lead screw 2024 is inserted into the guide cylinder 2032, the second lead screw nut 2025 is configured to cooperate with the second lead screw 2024 and is connected to the guide block 2033.

[0050] The driving component 2021 is connected to one end of the first lead screw 2022, and the transmission component 2026 is located at the other end of the first lead screw 2022. The transmission component 2026 connects the first lead screw 2022 and the second lead screw 2024. As the driving component 2021 drives the first lead screw 2022 to rotate, the transmission component 2026 enables the second lead screw 2024 to rotate synchronously.

[0051] Therefore, by using a single drive unit 2021 in conjunction with a transmission unit 2026 to synchronously drive the first lead screw 2022 and the second lead screw 2024 to rotate synchronously, only one power source is needed to synchronously drive the boom-side slider 2011 and the counterweight-side guide block 2033 to move in opposite directions. This simplifies the drive power layout, reduces the number of power components, and lowers the assembly difficulty and overall production cost of the device. Furthermore, this configuration can utilize the self-locking characteristic of the screw pair's threads, allowing the slider 2011 and the counterweight bearing 2031 to automatically lock after being adjusted to the target position, which helps improve operational stability.

[0052] It is worth noting that, in specific implementation, the first lead screw 2022 and the first lead screw nut 2023, as well as the second lead screw 2024 and the second lead screw nut 2025, can all be lead screw and nut pairs, as long as they can enable the lead screw to rotate and drive the lead screw nut to move along the lead screw axis.

[0053] Understandably, in practice, the first lead screw 2022 is configured to pass through the slider 2011. Specifically, the first lead screw 2022 and the slider 2011 can be threaded together, or a clearance hole can be provided on the slider 2011 to allow the first lead screw 2022 to pass through. Similarly, the second lead screw 2024 is configured to pass through the guide block 2033. Specifically, the second lead screw 2024 and the guide block 2033 can be threaded together, or a clearance hole can be provided on the guide block 2033 to allow the second lead screw 2024 to pass through.

[0054] It is also worth noting that, in specific implementations, as an optional embodiment of the driving component 2021, in this example, the driving component 2021 can be configured as a drive motor. When the driving component 2021 is configured as a drive motor, the motor body is fixedly connected to the limiting cylinder 2012, and the output shaft of the drive motor is connected to the first lead screw 2022, so that the drive motor can drive the first lead screw 2022 to rotate. Of course, as another embodiment, it is also possible to connect the drive motor to the second lead screw 2024.

[0055] To achieve synchronous rotation of the second lead screw 2024 while the first lead screw 2022 rotates, as an optional implementation of the transmission component 2026, in this embodiment, the transmission component 2026 may include a first gear 20261 and a second gear 20262 that mesh with each other. The first gear 20261 is coaxially and fixedly connected to the first lead screw 2022, and the second gear 20262 is coaxially and fixedly connected to the second lead screw 2024, so that the rotation of the first lead screw 2022 can drive the rotation of the second lead screw 2024. Of course, it is understood that the transmission component 2026 may be set to other transmission structures so that the second lead screw 2024 rotates synchronously with the rotation of the first lead screw 2022, and the slider 2011 and the counterweight 2034 can move to different sides along the width direction.

[0056] In some of the exemplary implementations, combined with Figure 1 and Figure 2 As shown, the counterweight part 203 includes counterweight blocks 2034. Multiple counterweight blocks 2034 are provided, and multiple counterweight blocks 2034 are detachably connected to the counterweight support member 2031.

[0057] Therefore, by setting the counterweight block 2034, the total weight of the counterweight can be changed according to the lifting load, flexibly matching different lifting weights and avoiding uneven loading of the boom.

[0058] In some of the exemplary implementations, combined with Figure 1 and Figure 5 As shown, the boom assembly 1 includes a slewing part 101, a base part 102, and a luffing telescopic part 103.

[0059] In practice, the base part 102 extends along the height direction of the flatbed 3, the slewing part 101 rotatably connects the base part 102 and the limiting part 201, and one end of the luffing telescopic part 103 is hinged to the base part 102.

[0060] Therefore, a telescopic member 104 is provided between the luffing telescopic part 103 and the base part 102. The telescopic member 104 is hinged to the luffing telescopic part 103 and the base part 102 so as to adjust the pitch angle of the luffing telescopic part 103.

[0061] Therefore, by rotatably connecting the slewing part 101 to the base part 102 and the limiting part 201, with the base arranged vertically and the luffing telescopic part 103 hinged to the base and a hinged telescopic component 104 installed between them, the telescopic component 104's extension and retraction movement causes the luffing telescopic part 103 to swing around the hinge point, achieving the effect of controllably adjusting the pitch angle of the luffing telescopic part 103 and changing the lifting height and working radius. At the same time, the slewing part 101 can drive the luffing telescopic part 103 to rotate, and in conjunction with the luffing telescopic part 103, it is possible to adjust the lifting point position from multiple angles and dimensions, which is beneficial to further increase the operating coverage of the lifting device.

[0062] In some of the exemplary implementations, combined with Figure 5 As shown, the telescopic component 104 includes a hydraulic cylinder 1041. Therefore, by including a hydraulic cylinder 1041 in the telescopic component 104, the design and implementation of the telescopic component 104 are facilitated, and the hydraulic cylinder 1041 has the characteristics of stable power output and strong load-bearing capacity, which is beneficial for adjusting the pitch angle.

[0063] In some of the exemplary implementations, combined with Figure 5 As shown, the rotating part 101 includes a slewing bearing 1011.

[0064] Therefore, by setting the slewing part 101 to include the slewing bearing 1011, it is beneficial to design and implement the slewing part 101, and it can make the boom rotate smoothly and not easily jammed.

[0065] It is worth noting that, in specific implementation, the oil circuit connection of the hydraulic cylinder 1041 and the hinge connection between the hydraulic cylinder 1041 and the telescopic member 104 and the luffing telescopic part 103 should refer to the relevant technical settings, so as to enable the adjustment of the pitch angle of the telescopic part.

[0066] It is also understandable that the configuration and model of the slewing bearing 1011, as well as the installation and driving method of the slewing bearing 1011, are based on relevant technologies, so that the telescopic luffing part can rotate and the rotation angle of the boom assembly 1 can be adjusted.

[0067] In some exemplary embodiments, the variable amplitude telescopic portion 103 includes a base arm 1031 and a telescopic joint 1032 slidably sleeved within the base arm 1031. The telescopic joint 1032 can extend out of the base arm 1031 or be stored inside the base arm 1031 along the extension direction of the base arm 1031.

[0068] Therefore, by sliding the telescopic joint 1032 inside the basic boom 1031, the telescopic joint 1032 can extend or retract along the extension direction of the basic boom 1031, thereby changing the overall effective boom length of the luffing telescopic section 103 as needed and flexibly adjusting the lifting operation radius.

[0069] It is worth noting that, in specific implementation, the luffing telescopic section 103 can be set with reference to relevant technical settings. That is, in specific implementation, the cooperation relationship between the basic boom 1031 and the telescopic joint 1032, as well as the way to adjust the telescopic joint 1032, can be set with reference to relevant technical settings.

[0070] It is worth noting that, regarding the roadway lifting device of this embodiment, based on the above exemplary embodiments, in specific implementation, as a preferred embodiment, it is still composed of... Figures 1 to 5 As shown, it may include, for example, a boom assembly 1 and a connecting assembly 2. The connecting assembly 2 connects the boom assembly 1 and the trolley 3. The connecting assembly 2 includes a limiting part 201 and a driving part 202. The boom assembly 1 is connected to the limiting part 201, and the driving part 202 can drive the boom assembly 1 to move along the width direction of the trolley 3 so as to adjust the rotation center of the boom assembly 1.

[0071] The boom assembly 1 includes a slewing section 101, a base section 102, and a luffing telescopic section 103. The base section 102 extends along the height direction of the flatbed trolley 3. The slewing section 101 is rotatably connected to the base section 102 and the limiting section 201. One end of the luffing telescopic section 103 is hinged to the base section 102. A telescopic member 104 is provided between the luffing telescopic section 103 and the base section 102. The telescopic member 104 is hinged to the luffing telescopic section 103 and the base section 102 to adjust the pitch angle of the luffing telescopic section 103.

[0072] Furthermore, the limiting part 201 includes a slider 2011, and the boom assembly 1 is connected to the slider 2011; the slider 2011 is connected to the driving part 202, and the driving part 202 can drive the slider 2011 to slide along the width direction.

[0073] In the preferred embodiment of the above-mentioned roadway lifting device, the specific settings and arrangements of the boom assembly 1, the limiting part 201, the driving part 202, etc. can still be referred to the descriptions in the above-mentioned exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the boom assembly 1, the limiting part 201, and the driving part 202, etc., can also be referred to the descriptions in the above-mentioned exemplary embodiments.

[0074] The roadway lifting device of this embodiment adopts the above design. By setting the connecting component 2 including the limiting part 201 and the driving part 202, the driving part 202, in conjunction with the limiting part 201, can drive the boom assembly 1 to move laterally, thereby adjusting the rotation center of the boom assembly 1. This helps to reduce the roadway's restrictions on the lifting radius and rotation angle of the lifting device, and is suitable for the variable lifting conditions in roadways, thus improving the flexibility of the roadway lifting device.

[0075] An embodiment of the second aspect of this application provides a vehicle including a flatbed cart 3, on which a roadway lifting device as described in the first aspect embodiment is provided.

[0076] The vehicle in this embodiment, by being equipped with the tunnel lifting device described above, can help improve the efficiency of material hoisting and transfer within the tunnel.

[0077] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A roadway lifting device, suitable for mounting on a flatbed cart (3), characterized in that: It includes a boom assembly (1) and a connecting assembly (2), the connecting assembly (2) connecting the boom assembly (1) and the flatbed trolley (3), the connecting assembly (2) including a limiting part (201) and a driving part (202); The boom assembly (1) is connected to the limiting part (201), and the driving part (202) can drive the boom assembly (1) to move along the width direction of the trolley (3) so as to adjust the rotation center of the boom assembly (1).

2. The tunnel lifting device according to claim 1, characterized in that: The limiting part (201) includes a slider (2011), and the boom assembly (1) is connected to the slider (2011); The slider (2011) is connected to the driving part (202), and the driving part (202) can drive the slider (2011) to slide along the width direction.

3. The tunnel lifting device according to claim 2, characterized in that: The connecting component (2) includes a counterweight part (203), which is located on one side of the limiting part (201) along the length direction of the flatbed (3). The counterweight part (203) includes a counterweight bearing member (2031). The drive unit (202) is connected to the counterweight support (2031) so that the slider (2011) and the counterweight support (2031) can move to different sides along the width direction.

4. The tunnel lifting device according to claim 3, characterized in that: The limiting part (201) includes a limiting cylinder (2012) that extends along the width direction. A limiting groove (2012a) is provided on the limiting cylinder (2012). The slider (2011) is disposed in the cavity (2012b) of the limiting cylinder (2012). Part of the slider (2011) protrudes out of the cavity (2012b) through the limiting groove (2012a) and is connected to the boom assembly (1). The counterweight part (203) includes a guide cylinder (2032) and a guide block (2033). The guide cylinder (2032) extends along the width direction and has a guide groove (2032a). The guide block (2033) is slidably disposed in the cavity (2032b) of the guide cylinder (2032). Part of the guide block (2033) extends out of the guide cylinder (2032) through the guide groove (2032a) to form the counterweight bearing member (2031).

5. The tunnel lifting device according to claim 4, characterized in that: The drive unit (202) includes a drive component (2021), a first lead screw (2022), a first lead screw nut (2023), a second lead screw (2024), a second lead screw nut (2025), and a transmission component (2026); The first lead screw (2022) passes through the limiting cylinder (2012), and the first lead screw nut (2023) is configured to cooperate with the first lead screw (2022) and is connected to the slider (2011); the second lead screw (2024) passes through the guide cylinder (2032), and the second lead screw nut (2025) is configured to cooperate with the second lead screw (2024) and is connected to the guide block (2033); The driving component (2021) is connected to one end of the first lead screw (2022), and the transmission component (2026) is located at the other end of the first lead screw (2022). The transmission component (2026) connects the first lead screw (2022) and the second lead screw (2024). As the driving component (2021) drives the first lead screw (2022) to rotate, the transmission component (2026) enables the second lead screw (2024) to rotate synchronously.

6. The tunnel lifting device according to claim 4, characterized in that: The counterweight part (203) includes a counterweight block (2034); Multiple counterweights (2034) are provided, and the multiple counterweights (2034) are detachably connected to the counterweight support (2031).

7. The tunnel lifting device according to claim 1, characterized in that: The boom assembly (1) includes a slewing part (101), a base part (102), and a luffing telescopic part (103); The base portion (102) extends along the height direction of the flatbed (3), the rotating portion (101) is rotatably connected to the base portion (102) and the limiting portion (201), and one end of the variable amplitude telescopic portion (103) is hinged to the base portion (102). A telescopic member (104) is provided between the variable amplitude telescopic part (103) and the base part (102). The telescopic member (104) is hinged to the variable amplitude telescopic part (103) and the base part (102) so as to adjust the pitch angle of the variable amplitude telescopic part (103).

8. The tunnel lifting device according to claim 7, characterized in that: The telescopic component (104) includes a hydraulic cylinder (1041); and / or, The rotating part (101) includes a slewing bearing (1011).

9. The tunnel lifting device according to claim 7, characterized in that: The variable amplitude telescopic part (103) includes a basic arm (1031) and a telescopic joint (1032) slidably sleeved in the basic arm (1031). The telescopic joint (1032) can extend out of the basic arm (1031) or be stored in the basic arm (1031) along the extension direction of the basic arm (1031).

10. A vehicle, characterized in that: Includes a flatbed cart (3), which is equipped with a roadway lifting device as described in any one of claims 1 to 9.

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