Suspension type trolley
By setting up guide rails on the top of the coal mine tunnel, the trolley group can actively walk on the guide rails, which solves the problem of existing trolleys being disturbed by slag when walking at the bottom of the tunnel, improves walking stability and efficiency, and reduces the failure rate.
Patent Information
- Application Number
- CN202420285571.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-06
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-02-06
AI Technical Summary
Existing trolleys are easily disturbed by slag accumulation when walking at the bottom of coal mine tunnels, and require slag cleaning operations. They are unstable in walking, which can easily lead to equipment failure.
A suspended trolley is designed. By setting guide rails on the top of the coal mine tunnel, using walking mechanisms, power mechanisms and clamping components, the trolley group can actively walk on the guide rails and avoid direct contact with the bottom of the tunnel.
It effectively avoids interference from the tunnel slag accumulation on the trolley group, improves the walking stability and efficiency of the trolley group, reduces the failure rate, and simplifies the transfer process during dismantling and transition.
Smart Images
Figure CN222501803U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to mining equipment technology, and in particular to a suspended trolley. Background Art
[0002] In the coal mining industry, various types of transportation equipment are usually used, especially the tunnel boring machine (TBM) used in coal mines, which is a transportation trolley with a supporting system.
[0003] Currently, there are three main types of trolley traveling equipment: first, locomotive tracks are laid in the tunnel, and the trolley runs on the tracks through pulleys; second, the trolley is a platform type and is directly dragged at the bottom of the tunnel; third, the trolley is a platform wheel pair structure, and the trolley is equipped with rubber wheels or steel wheels with larger diameters and runs directly on the tunnel.
[0004] However, the above three types of trolley structures are all ground-moving trolleys, so the movement of the three types of trolley structures will be disturbed by the waste slag at the bottom of the tunnel; therefore, the above three types of trolley structures all need to perform slag cleaning operations on the bottom of the tunnel when walking. Utility Model Content
[0005] The present application provides a suspended trolley to solve the problem of interference from accumulated slag when the trolley is traveling at the bottom of a tunnel.
[0006] The present application provides a suspended trolley, which is applied to a coal mine tunnel, and includes a guide rail, a traveling mechanism, a power mechanism, a clamping assembly and a trolley assembly, wherein the guide rail is used to be arranged at the top of the coal mine tunnel;
[0007] The walking mechanism includes at least two rollers, which are rotatably connected to the trolley assembly and are rollingly arranged on the guide rails. The two opposite sides of the guide rails each have at least one roller to mount the trolley assembly on the guide rails.
[0008] The clamping assembly includes a first clamping member, the first clamping member is used to clamp or release the guide rail, and the first clamping member is connected to the trolley assembly through a power mechanism;
[0009] The power mechanism is configured to drive the first clamping member to move along the guide rail when the first clamping member releases the guide rail; and to drive the trolley group to move along the guide rail toward the first clamping member when the first clamping member clamps the guide rail.
[0010] In a possible implementation, the suspended trolley provided in the present application, the traveling mechanism also includes a hanger, the hanger is connected to the trolley assembly, and the roller is rotatably connected to the hanger.
[0011] In a possible implementation, in the suspended trolley provided in the present application, rolling grooves are provided on opposite sides of the guide rail, and the rollers are correspondingly arranged in the rolling grooves for rolling.
[0012] In a possible implementation, the suspended trolley provided in the present application has a first inclined surface on the side of the rolling groove facing the trolley assembly, and the first inclined surface is inclined downward from the inside to the outside;
[0013] The wheel surface of the roller is a second inclined surface matching the first inclined surface.
[0014] In a possible implementation, the suspended trolley provided in the present application, the traveling mechanism further includes at least one anti-sway wheel;
[0015] The anti-swing wheel is rotatably arranged on the hanger, and the anti-swing wheel is configured so that when the roller rolls in the rolling groove, the anti-swing wheel rolls on the side wall of the guide rail to prevent the hanger from swinging in the thickness direction of the guide rail.
[0016] In a possible implementation, the suspended trolley provided in the present application has a mounting hole on the mounting frame, the anti-swing wheel is inserted into the mounting hole, and the axis of the anti-swing wheel is perpendicular to the axis of the roller; preferably, the mounting hole is a square hole.
[0017] In a possible implementation, the suspended trolley provided in the present application, the hanger includes a first support plate and a second support plate connected to the first support plate, and the first support plate and the second support plate are parallel;
[0018] The first support plate and the second support plate are both rotatably connected with rollers, and each roller is located between the first support plate and the second support plate;
[0019] The first support plate and the second support plate are both provided with mounting holes.
[0020] In a possible implementation, the suspended trolley provided in the present application, the clamping assembly also includes a second clamping member, the trolley group is connected to the guide rail through the second clamping member, and the second clamping member is configured to release the guide rail when the trolley group moves along the guide rail toward the first clamping member.
[0021] In a possible implementation, the suspended trolley provided in the present application has two power mechanisms and two first clamping members, and both ends of the trolley group are connected to the first clamping members through the power mechanisms, respectively.
[0022] In a possible implementation, the suspended trolley provided in the present application, the trolley group includes at least two trolley bodies and at least one first connecting member, and two adjacent trolley bodies are connected by the first connecting member;
[0023] Alternatively, the trolley assembly includes at least two trolley bodies, at least one first connecting member and at least one second connecting member, two adjacent trolley bodies are connected via the first connecting member, and two adjacent trolley bodies are connected via the second connecting member.
[0024] The present application provides a suspended trolley, which is applied to coal mine tunnels. The suspended trolley is provided with guide rails, a traveling mechanism, a power mechanism, a clamping assembly and a trolley group. The guide rails are used to be arranged at the top of the coal mine tunnel. The trolley group realizes rolling displacement on the guide rails through rollers, so as to realize the stability and smooth travel of the trolley group. In addition, by switching the first clamping member between the clamping and release states, the driving part uses the first clamping member as a fulcrum to realize the drive transfer of the trolley group on the guide rail. The waste slag at the bottom of the coal mine tunnel will not interfere with the travel of the trolley group, and there is no need to perform slag cleaning operations. At the same time, the stability of the travel of the trolley group is improved. In addition, the smoothness of the transportation of the trolley group during dismantling and transfer is realized, thereby improving the transfer efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0026] Figure 1 A schematic diagram of the structure of a suspended trolley provided in an embodiment of the present application;
[0027] Figure 2 for Figure 1 Schematic diagram of the structure of the middle guide rail and the walking mechanism;
[0028] Figure 3 for Figure 2 Schematic diagram of the structure from another perspective.
[0029] Description of reference numerals:
[0030] 100-guide rail; 110-rolling groove; 111-first inclined plane; 112-second inclined plane;
[0031] 200-travel mechanism; 210-roller;
[0032] 220-hanging frame; 221-first supporting plate; 222-second supporting plate; 230-anti-sway wheel;
[0033] 300-power mechanism;
[0034] 400-clamping assembly; 410-first clamping member; 420-second clamping member;
[0035] 600-trolley set;
[0036] 610 - trolley body; 620 - first connecting member; 630 - second connecting member.
[0037] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0038] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.
[0039] As in the prior art, there are three main working modes of the rear-end trolleys used in coal mine tunnels: first, locomotive tracks are laid in the tunnels, and the trolleys run on the tracks via pulleys; second, the trolleys are platform-type and are directly towed at the bottom of the tunnel; third, the trolleys are platform-wheel-pair structures, and the trolleys are equipped with rubber wheels or steel wheels with larger diameters, and run directly on the tunnels; however, the first type requires laying tracks; the trolleys of the second and third structures are difficult to move when there is too much slag in the tunnels, and slag cleaning operations are required; and during the movement of the trolley, the posture of the trolley is not controlled, and the equipment and pipelines on it are easily scratched against the tunnel wall, and the belt conveyor arranged in the trolley frame will also be affected, increasing the failure rate; in addition, the trolley is also inconvenient to transfer when the machine is dismantled and transferred.
[0040] Based on this, the suspended trolley provided in the present application sets the guide rails in the coal mine tunnel, and the trolley group walks on the guide rails, thereby avoiding the influence of coal slag on the ground of the coal mine tunnel on the walking of the trolley group; at the same time, through the interaction between the walking mechanism, the power mechanism and the clamping assembly, the active walking of the trolley group on the guide rails is realized, and the posture control of the trolley group during the walking process is better realized, avoiding the equipment pipelines from easily scratching the cave wall, and at the same time, the belt conveyor in the trolley group frame will not be affected, thereby improving the stability of the trolley group walking and reducing the failure rate; in addition, when dismantling the machine and transferring it, the convenience of transferring the trolley group is improved.
[0041] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application.
[0042] Figure 1 A schematic diagram of the structure of a suspended trolley provided in an embodiment of the present application; Figure 2 for Figure 1 Schematic diagram of the structure of the middle guide rail and the walking mechanism; Figure 3 for Figure 2Schematic diagram of the structure from another perspective.
[0043] See also Figures 1 to 3 As shown, the embodiment of the present application provides a suspended trolley, comprising:
[0044] The guide rail 100, the traveling mechanism 200, the power mechanism 300, the clamping assembly 400 and the trolley assembly 600, the guide rail 100 is used to be arranged on the top of the coal mine tunnel.
[0045] The walking mechanism 200 includes at least two rollers 210 rotatably connected to the trolley assembly 600 , and the rollers 210 are rollingly arranged on the guide rail 100 . The guide rail 100 has at least one roller 210 on both opposite sides to mount the trolley assembly 600 on the guide rail 100 .
[0046] The clamping assembly 400 includes a first clamping member 410, which is used to clamp or release the guide rail 100. The first clamping member 410 is connected to the trolley group 600 through a power mechanism 300. More specifically, the power mechanism 300 is connected to the end of the trolley group 600. The power mechanism 300 is configured to drive the first clamping member 410 to move along the guide rail 100 when the first clamping member 410 releases the guide rail 100; and to drive the trolley group 600 to move along the guide rail 100 toward the first clamping member 410 when the first clamping member 410 clamps the guide rail 100.
[0047] Exemplarily, one or more trolley groups 600 may be provided. The present application does not limit the number of trolley groups 600 and can be provided according to actual needs.
[0048] Specifically, the trolley set 600 is rollingly connected to the guide rail 100 through the roller 210. In this embodiment, the trolley set 600 is mounted below the guide rail 100, and the trolley set 600 can slide along the extension direction of the guide rail 100 (that is, Figure 1 In this way, the trolley group 600 does not walk directly on the ground, and thus will not be affected by the slag accumulation in the lane, thereby improving the working efficiency of the trolley group 600.
[0049] In the present application, the trolley group 600 is driven by the power mechanism 300 and the first clamping member 410 to move along the extension direction of the guide rail 100. The power mechanism 300 may be a manual drive member or an electric drive member, and exemplarily, the power mechanism 300 is a hydraulic cylinder or a linear motor.
[0050] Specifically, in the initial state, the hydraulic cylinder is in a retracted state, and the first clamping member 410 clamps the guide rail 100. When the trolley assembly 600 starts to move, the first clamping member 410 releases the guide rail 100, and the hydraulic cylinder extends to drive the first clamping member 410 to move along the +X direction relative to the guide rail 100. After the hydraulic cylinder reaches the maximum stroke, the first clamping member 410 clamps the guide rail 100. At this time, the reversing valve drives the hydraulic cylinder to retract, so as to drive the trolley assembly 600 to move along the +X direction on the guide rail 100, thereby completing the forward movement of the trolley assembly 600.
[0051] It is understandable that if the trolley assembly 600 needs to retreat relative to the guide rail 100, in the initial state, the hydraulic cylinder is in a retracted state, and the first clamping member 410 clamps the guide rail 100. When the trolley assembly 600 starts to move, the hydraulic cylinder extends to drive the trolley assembly 600 to move relative to the guide rail 100 along the -X direction. After the hydraulic cylinder reaches the maximum stroke, the first clamping member 410 releases the guide rail 100. At this time, the reversing valve drives the hydraulic cylinder to retract, so as to drive the first clamping member 410 to move along the -X direction on the guide rail 100. When the hydraulic cylinder is fully retracted, the first clamping member 410 clamps the guide rail 100 again, thereby completing the retreat action of the trolley assembly 600.
[0052] In some embodiments, the walking mechanism 200 further includes a hanger 220 , the hanger 220 is connected to the trolley assembly 600 , and the roller 210 is rotatably connected to the hanger 220 .
[0053] It should be noted that the roller 210 can adjust its installation position on the bracket 220 to adjust the final distance between the roller 210 and the top of the trolley assembly 600 to avoid the roller 210 being too close to the top of the trolley assembly 600, thereby hindering the slag transportation of the trolley assembly 600.
[0054] In some embodiments, rolling grooves 110 are provided on opposite sides of the guide rail 100, and the rollers 210 are correspondingly rolled in the rolling grooves 110; more specifically, the guide rail 100 at this time is an I-shaped steel section.
[0055] It can be known from the above that at least one roller 210 is disposed in each rolling groove 110 , and the roller 210 rolls in the corresponding rolling groove 110 . Thus, the rolling groove 110 not only provides a rolling space for the roller 210 , but also effectively surrounds and protects the roller 210 .
[0056] In some embodiments, the side of the rolling groove 110 facing the trolley assembly 600 is a first inclined surface 111 , and the first inclined surface 111 is inclined downward from the inside to the outside; the wheel surface of the roller 210 is a second inclined surface 112 matching the first inclined surface 111 .
[0057] Specifically, the bottom surface of the rolling groove 110 is the first inclined surface 111, and the angle between the first inclined surface 111 and the horizontal plane is between 0° and 10°. The angle can be selected according to actual conditions, and the present application does not impose any limitation on this.
[0058] In addition, the purpose of setting the bottom surface of the rolling groove 110 as an inclined surface is that when waste residue enters the rolling groove 110 , the waste residue can be discharged outward from the inclined surface to avoid the waste residue from interfering with the rolling of the roller 210 .
[0059] In some embodiments, the walking mechanism 200 further includes at least one anti-sway wheel 230;
[0060] The anti-sway wheel 230 is rotatably disposed on the hanger 220. The anti-sway wheel 230 is configured such that when the roller 210 rolls in the rolling groove 110, the anti-sway wheel 230 rolls on the side wall of the guide rail 100 to prevent the hanger 220 from rolling in the thickness direction of the guide rail 100 ( Figure 3 Specifically, the anti-sway wheel 230 is arranged on the side of the guide rail 100, and the wheel surface thereof abuts against the side wall of the guide rail 100. In addition, an anti-sway wheel 230 is provided on at least one side wall of the guide rail 100, and anti-sway wheels 230 are respectively provided on the two side walls of the guide rail 100. In this way, the anti-sway wheel 230 can form an abutment limit on both sides of the guide rail 100 to prevent the trolley group 600 from swinging in the thickness direction of the guide rail 100; moreover, the number of the anti-sway wheels 230 on the same side of the guide rail 100 can be one or more.
[0061] In some embodiments, a mounting hole is provided on the bracket 220, and the anti-swing wheel 230 is inserted into the mounting hole, and the axis of the anti-swing wheel 230 is perpendicular to the axis of the roller 210; specifically, a mounting hole is provided on the bracket 220, and the anti-swing wheel 230 is rotatably provided in the mounting hole, and at the same time, the axis of the roller 210 is horizontally set, and the axis of the anti-swing wheel 230 is vertically set; in this way, the horizontal roller 210 and the vertical anti-swing wheel 230 provide a good installation angle, thereby improving the convenience of installation.
[0062] In some embodiments, the bracket 220 includes a first support plate 221 and a second support plate 222 connected to the first support plate 221, the first support plate 221 and the second support plate 222 are parallel; the first support plate 221 and the second support plate 222 are both rotatably connected to rollers 210, and each roller 210 is located between the first support plate 221 and the second support plate 222; mounting holes are set on the first support plate 221 and the second support plate 222.
[0063] Specifically, the first support plate 221 and the second support plate 222 are relatively arranged on both sides of the guide rail 100, and the anti-sway wheels 230 are respectively arranged on the first support plate 221 and the second support plate 222; the anti-sway wheels 230 can be independently arranged between each support plate, which is more convenient for the installation of the anti-sway wheels 230.
[0064] In some embodiments, the clamping assembly 400 further includes a second clamping member 420 , and the trolley assembly 600 is connected to the guide rail 100 via the second clamping member 420 . The second clamping member 420 is configured to release the guide rail 100 when the trolley assembly 600 moves along the guide rail 100 toward the first clamping member 410 .
[0065] Exemplarily, the second clamping member 420 is disposed on the side of the trolley assembly 600 facing the guide rail 100, that is, the top of the trolley assembly 600; one or more second clamping members 420 may be provided, and at least one trolley assembly 600 is provided with the second clamping member 420;
[0066] It should be noted that the first clamping member 410 and the second clamping member 420 alternately clamp or release the guide rail 100 to prevent the trolley assembly 600 from sliding or slipping when changing steps.
[0067] Specifically, when the first clamping member 410 releases the guide rail 100, the second clamping member 420 clamps the guide rail 100, and the power mechanism 300 drives the first clamping member 410 to move on the guide rail 100. After the first clamping member 410 stops moving, it clamps the guide rail 100 again. At this time, the second clamping member 420 is released, and the power mechanism 300 drives the trolley group 600 to move toward the first clamping member 410; after the trolley group 600 stops, the second clamping member 420 clamps the guide rail 100 again; this reciprocating process is used to achieve continuous stepping of the trolley group 600.
[0068] In some embodiments, the number of the power mechanism 300 and the first clamping member 410 is two, and both ends of the trolley assembly 600 are connected to the first clamping member 410 through the power mechanism 300 respectively.
[0069] It should be noted that one power mechanism 300 and one first clamping member 410 constitute one power unit. Therefore, in this embodiment, one power unit is respectively disposed at the front end and the rear end of the trolley assembly 600. Figure 1 As shown, for ease of description, the left end of the trolley group 600 is the front end ( Figure 1 The right end is the back end ( Figure 1 The B end in the ).
[0070] Specifically, when the first clamping member 410 at the front end releases the guide rail 100, the second clamping member 420 and the first clamping member 410 at the rear end clamp the guide rail 100, and the power mechanism 300 at the rear end is in a retracted state; the power mechanism 300 at the front end drives the first clamping member 410 at the front end to move on the guide rail 100, and after the first clamping member 410 at the front end stops moving, it clamps the guide rail 100 again, and at this time, the second clamping member 420 is released, and the power mechanism 300 at the front end drives the trolley group 600 to the front end. The first clamping member 410 moves, and the power mechanism 300 at the rear end follows the expansion of the trolley group 600; after the trolley group 600 stops, the second clamping member 420 clamps the guide rail 100 again, and finally, the first clamping member 410 at the rear end is released, and the power mechanism 300 at the rear end drives the first clamping member 410 at the rear end to move toward the trolley group 600. After the power mechanism 300 at the rear end is completely retracted, the first clamping member 410 at the rear end clamps the guide rail 100; this reciprocating process is repeated to realize continuous stepping of the trolley group 600.
[0071] In addition, the first clamping member 410 and the second clamping member 420 are rail clamps; it should be noted that the rail clamps may include manual rail clamps or electric rail clamps; the types of rail clamps are not limited here.
[0072] In some embodiments, the trolley group 600 includes at least two trolley bodies 610 and at least one first connecting member 620, and two adjacent trolley bodies 610 are connected by the first connecting member 620, or the trolley group 600 also includes at least one second connecting member 630, and two trolley bodies 610 are connected by the second connecting member 630.
[0073] The first connecting member 620 may be a ball-twisted tie rod, and at least one first connecting member 620 is disposed between two adjacent trolley bodies 610 .
[0074] The second connecting member 630 may be a fall prevention chain, and the second connecting member 630 is disposed below the first connecting member 620 , and at least one second connecting member 630 is disposed between two adjacent trolley bodies 610 .
[0075] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.
[0076] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.
Claims
1. A suspended trolley, used in coal mine tunnels, characterized in that: It comprises a guide rail (100), a walking mechanism (200), a power mechanism (300), a clamping assembly (400) and a trolley assembly (600), wherein the guide rail (100) is used to be arranged at the top of the coal mine tunnel; The walking mechanism (200) comprises at least two rollers (210), the rollers (210) are rotatably connected to the trolley assembly (600), and the rollers (210) are rollingly arranged on the guide rail (100), and at least one roller (210) is provided on opposite sides of the guide rail (100) so as to mount the trolley assembly (600) on the guide rail (100); The clamping assembly (400) comprises a first clamping member (410), the first clamping member (410) being used to clamp or release the guide rail (100), and the first clamping member (410) being connected to the trolley assembly (600) via the power mechanism (300); The power mechanism (300) is configured to drive the first clamping member (410) to move along the guide rail (100) when the first clamping member (410) releases the guide rail (100); and to drive the trolley group (600) to move along the guide rail (100) toward the first clamping member (410) when the first clamping member (410) clamps the guide rail (100).
2. The suspended trolley according to claim 1, characterized in that: The walking mechanism (200) further comprises a hanging frame (220), the hanging frame (220) is connected to the trolley assembly (600), and the roller (210) is rotatably connected to the hanging frame (220).
3. The suspended trolley according to claim 2, characterized in that: Rolling grooves (110) are provided on opposite sides of the guide rail (100), and the rollers (210) are correspondingly arranged in the rolling grooves (110) for rolling.
4. The suspended trolley according to claim 3, characterized in that: The side surface of the rolling groove (110) facing the trolley assembly (600) is a first inclined surface (111), and the first inclined surface (111) is inclined downward from the inside to the outside; The wheel surface of the roller (210) is a second inclined surface (112) matching the first inclined surface (111).
5. The suspended trolley according to claim 3 or 4, characterized in that: The walking mechanism (200) further includes at least one anti-sway wheel (230); The anti-sway wheel (230) is rotatably disposed on the hanger (220), and the anti-sway wheel (230) is configured such that when the roller (210) rolls in the rolling groove (110), the anti-sway wheel (230) rolls on the side wall of the guide rail (100), so as to prevent the hanger (220) from swinging in the thickness direction of the guide rail (100).
6. The suspended trolley according to claim 5, characterized in that: The hanger (220) is provided with a mounting hole, the anti-sway wheel (230) is inserted into the mounting hole, and the axis of the anti-sway wheel (230) is perpendicular to the axis of the roller (210).
7. The suspended trolley according to claim 6, characterized in that: The rack (220) comprises a first support plate (221) and a second support plate (222) connected to the first support plate (221), and the first support plate (221) and the second support plate (222) are parallel; The first support plate (221) and the second support plate (222) are both rotatably connected with the rollers (210), and each of the rollers (210) is located between the first support plate and the second support plate; The mounting holes are provided on both the first supporting plate (221) and the second supporting plate (222).
8. The suspended trolley according to any one of claims 1 to 4, characterized in that: The clamping assembly (400) further includes a second clamping member (420), and the trolley assembly (600) is connected to the guide rail (100) via the second clamping member (420), and the second clamping member (420) is configured to release the guide rail (100) when the trolley assembly (600) moves along the guide rail (100) toward the first clamping member (410).
9. The suspended trolley according to any one of claims 1 to 4, characterized in that: The number of the power mechanism (300) and the first clamping member (410) is two, and the two ends of the trolley assembly (600) are respectively connected to the first clamping member (410) through the power mechanism (300).
10. The suspended trolley according to any one of claims 1 to 4, characterized in that: The trolley assembly (600) comprises at least two trolley bodies (610) and at least one first connecting member (620), and two adjacent trolley bodies (610) are connected via the first connecting member (620); Alternatively, the trolley assembly (600) includes at least two trolley bodies (610), at least one first connecting member (620) and at least one second connecting member (630), two adjacent trolley bodies (610) are connected via the first connecting member (620), and two adjacent trolley bodies (610) are connected via the second connecting member (630).