Carrying device

Abstract

The present application relates to the technical field of warehouse logistics, and particularly to a carrying device, which aims to solve the problem of inconvenience in terms of the carrying and taking and placing of goods. The carrying device comprises: a vehicle body (1), on which a rack (2) is fixed, a supporting structure (3) being transversely connected to the rack (2); a telescopic arm (4), which is arranged on the supporting structure (3); and a telescopic-arm deviation rectifying mechanism (5), which is connected to each of the telescopic arm (4) and the supporting structure (3), wherein the telescopic-arm deviation rectifying mechanism (5) takes action so as to enable the telescopic arm (4) to move relative to the supporting structure (3) in a direction perpendicular to an extension direction of the telescopic arm (4).

Description

Transport device Technical Field

[0001] The present application relates to the technical field of warehousing and logistics, and in particular to a transporting device. Background Art

[0002] A handling device typically consists of a chassis, a gantry, and a telescopic arm. To transport goods placed high on shelves, the telescopic arm is typically attached to the gantry. However, due to factors such as the gantry's strength and bending stiffness, the weight of the telescopic arm, and the flatness of the floor, the gantry often bends or tilts when the handling device is stationary. Consequently, when the handling device moves to its desired position to transport goods from the shelves, the telescopic arm may become misaligned with the goods, making it difficult to carry and retrieve goods.

[0003] Summary of the Invention

[0004] In view of this, an embodiment of the present application provides a transport device that is convenient for transporting, picking up and placing goods.

[0005] To achieve the above objectives, the embodiments of the present application provide the following technical solutions.

[0006] An embodiment of the present application provides a transport device, comprising: a vehicle body, a frame being fixed on the vehicle body, and a support structure being laterally connected to the frame; a telescopic arm, the telescopic arm being arranged on the support structure; a telescopic arm correction mechanism, the telescopic arm correction mechanism being respectively connected to the telescopic arm and the support structure; the telescopic arm correction mechanism being actuated so that the telescopic arm moves relative to the support structure along a direction perpendicular to the extension direction of the telescopic arm.

[0007] According to a specific implementation of the present application, a slide rail is provided on the support structure, and a slide groove is provided on the side of the slide rail; a sliding connection block is provided on the telescopic arm, and the sliding connection block has an assembly groove, and a protrusion is provided on the inner wall of the assembly groove; the telescopic arm is supported on the slide rail of the support structure through the sliding connection block, wherein the protrusion on the inner wall of the assembly groove is located in the slide groove.

[0008] According to a specific implementation of the present application, the telescopic arm correction mechanism includes a driving part and a guiding part, the driving part is arranged on the telescopic arm, the guiding part is arranged on the supporting structure, and the guiding part and the driving part form a kinematic pair.

[0009] According to a specific implementation of the present application, the driving part includes a motor, a reducer and a driving gear, the motor is connected to the reducer, and the driving gear is connected to the output shaft of the reducer; the guiding part is a rack, and the driving gear is meshed with the rack.

[0010] According to a specific implementation of the present application, the telescopic arm is connected to a drive part connecting frame, and the drive part is detachably arranged on the drive part connecting frame through a fastener; the drive part connecting frame is provided with a tightness maintaining mechanism for maintaining the tightness of the engagement between the drive gear and the rack.

[0011] According to a specific implementation of the present application, a slot is provided on the drive unit connecting frame, the reducer is arranged in the slot, and there is a gap between the outer wall of the reducer and the inner wall of the slot; the tightness maintaining mechanism includes a sheet metal connected to the drive unit connecting frame, a threaded hole is provided on the sheet metal, a screw that is threadedly matched with the threaded hole is passed through the threaded hole, and one end of the screw is pressed against the side of the reducer away from the rack.

[0012] According to a specific implementation of the present application, a photoelectric switch is provided on the telescopic arm, and the photoelectric switch includes a transmitting part and a receiving part arranged opposite to each other; a shielding member is provided on the supporting structure, and the shielding member is located between the transmitting part and the receiving part of the photoelectric switch; the telescopic arm correction mechanism is activated, and the telescopic arm moves forward or reverse relative to the starting position relative to the supporting structure along a direction perpendicular to the extension direction of the telescopic arm.

[0013] According to a specific implementation of the present application, a photoelectric switch fixing sheet metal is provided on the telescopic arm, and a second threaded hole is provided on the photoelectric switch fixing sheet metal and the photoelectric switch respectively, and a second screw that is threadedly matched with the second threaded hole is passed through the second threaded hole.

[0014] According to a specific implementation of the present application, a movable wiring harness is further included, wherein the movable wiring harness includes a movable end and a fixed end, the movable end of the movable wiring harness is fixed on the telescopic arm, and the fixed end of the movable wiring harness is fixed on the support structure.

[0015] According to a specific implementation of the present application, a chain transmission assembly is provided on the frame, and the support structure is laterally connected to the chain links of the chain transmission assembly.

[0016] The transport device provided in the embodiment of the present application, after the vehicle body moves to the specified position, the telescopic arm moves relative to its supporting structure in a direction perpendicular to the extension direction through the telescopic arm correction mechanism to eliminate the position deviation between the telescopic arm and the goods to be transported caused by the tilt of the frame of the load-bearing support structure, thereby facilitating the telescopic arm to transport and pick up and place goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] FIG1 is a schematic structural diagram of a transport device according to an embodiment of the present application;

[0019] FIG2 is a schematic structural diagram of the telescopic arm, the supporting structure, and the telescopic arm deviation correction mechanism in the embodiment shown in FIG1 ;

[0020] FIG3 is a schematic structural diagram of the support structure and the telescopic arm correction mechanism in the embodiment shown in FIG1 ;

[0021] FIG4 is a schematic structural diagram of a transport device according to an embodiment of the present application moving to a safe position during the process of transporting goods;

[0022] FIG5 is a schematic structural diagram of a transport device according to an embodiment of the present application moving to a plane where a target position is located during the process of transporting goods;

[0023] FIG6 is a structural diagram of the operation of the telescopic arm deviation correction mechanism during the cargo transporting process of the transport device according to an embodiment of the present application;

[0024] FIG7 is a structural diagram of the telescopic arm delivering the cargo to be transported to the target position after eliminating deviation during the cargo transporting process of the transport device according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0026] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] The embodiments of the present application provide a transport device that is convenient for carrying goods.

[0028] The following further describes the implementation of the present application in conjunction with Figures 1 to 7.

[0029] Figure 1 shows a schematic structural diagram of a transport device according to an embodiment of the present application. Referring to Figure 1 , the transport device of this embodiment may include a vehicle body 1, a frame 2, a support structure 3, a telescopic arm 4, and a telescopic arm correction mechanism (details of which are shown in Figures 2 and 3 , including the telescopic arm correction mechanism 5).

[0030] Among them, the vehicle body 1 can also be called a mobile base, a driving platform, etc., the frame 2 can also be called a gantry, a support frame, etc., the supporting structure 3 can also be called a support platform, a support plate, a support arm, etc., and the telescopic arm 4 can also be called a picking arm, a carrying arm, etc.

[0031] A frame 2 is fixed on the vehicle body 1, and a support structure 3 is laterally connected to the frame 2. In other words, the support structure 3 is perpendicular to the frame 2 and is connected to the frame 2 in a roughly horizontal manner. For example, the support structure 3 can be fixedly connected to the frame 2 via screws.

[0032] The telescopic arm 4 is mounted on the support structure 3 and can be extended and retracted relative to the support structure 3 to handle cargo. The telescopic arm 4's extension and retraction directions are shown in Figure 7 , which shows the telescopic arm extended. The extension direction is perpendicular to the long side of the vehicle body 1, and the retraction direction is opposite to the extension direction.

[0033] The telescopic arm correction mechanism 5 is connected to the telescopic arm 4 and the support structure 3, respectively. When the correction mechanism 5 is activated, the telescopic arm 4 moves relative to the support structure 3 in a direction perpendicular to the extension direction of the telescopic arm 4 (for example, the movement direction of the telescopic arm 4 is parallel to the ground). The correcting mechanism's operating direction is shown in Figure 6 . Specifically, when the correction mechanism 5 is used to adjust the position of the telescopic arm 4, it operates to move the telescopic arm 4 relative to the support structure 3 so that the extension direction of the telescopic arm 4 is aligned with the cargo to be transported.

[0034] The transport device provided in the embodiment of the present application, after being moved to a specified position by the vehicle body 1, can move the telescopic arm 4 on the supporting structure 3 on the frame 2 of the vehicle body 1 relative to the supporting structure 3 through the telescopic arm correction mechanism 5, along the extension direction perpendicular to the telescopic arm 4, thereby eliminating the horizontal lateral deviation between the telescopic arm 4 and the goods to be transported caused by the tilt of the frame 2, so as to facilitate the telescopic arm 4 to carry the goods.

[0035] As shown in FIG2 , the telescopic arm 4 is slidably connected to the support structure 3. In one embodiment, the support structure 3 may be provided with a slide rail 31. The slide rail 31 is a linear slide rail extending parallel to the width of the support structure 3. The side of the slide rail 31 may be provided with a slide groove 32 (shown in FIG3 ). The slide rail 31 may also be referred to as a guide rail, and the slide groove 32 may also be referred to as a guide groove.

[0036] The telescopic arm 4 may be provided with a sliding connection block 41, and the telescopic arm 4 is supported on the slide rail 31 of the support structure 3 through the sliding connection block 41. The sliding connection block 41 may also be called a guide block.

[0037] Specifically, the sliding connection block 41 can slide on the slide rail 31 along a direction perpendicular to the extension direction of the telescopic arm 4, and the moving direction of the sliding connection block 41 is parallel to the ground, thereby driving the telescopic arm 4 to move relative to the support structure 3 along a direction perpendicular to the extension direction of the telescopic arm 4.

[0038] As an optional embodiment, the sliding connection block 41 may have a mounting groove, and a protrusion may be provided on the inner wall of the mounting groove. When the telescopic arm 4 is supported on the support structure 3, the protrusion on the inner wall of the mounting groove may be located in the slide groove 32. In this way, when the telescopic arm 4 is supported on the support structure 3, the protrusion on the inner wall of the mounting groove of the telescopic arm 4 may abut against the side wall of the slide groove 32. The side wall of the slide groove 32 may limit the movement of the protrusion in a direction perpendicular to the slide groove 32, thereby preventing the telescopic arm 4 from tipping over relative to the slide rail 31 when the telescopic arm 4 moves relative to the support structure 3.

[0039] In order to realize the movement of the telescopic arm 4 relative to the supporting structure 3, in one embodiment, the telescopic arm correction mechanism 5 includes a driving part and a guiding part, the driving part is arranged on the telescopic arm 4, and the guiding part is arranged on the supporting structure 3, and the guiding part and the driving part form a kinematic pair.

[0040] A kinematic pair is a movable connection between two components that are in direct contact and can produce relative motion. In this embodiment, the guide part is in direct contact with the driving part, and the relative motion between the driving part and the guide part is achieved through the movement of the driving part itself, thereby converting the movement of the driving part itself into the movement of the telescopic arm 4 relative to the support structure 3.

[0041] Referring to Figure 2 or Figure 3, as an optional embodiment, the driving part may include a motor 51, a reducer 52 and a driving gear 53. The motor 51 is connected to the reducer 52, and the driving gear 53 is connected to the output shaft of the reducer 52. In this way, the power of the motor 51 can be transmitted to the driving gear 53 through the reducer 52, so that the driving gear 53 rotates.

[0042] The reducer 52 can reduce the impact load on the driving gear 53 and increase the torque acting on the driving gear 53. For example, the reducer 52 can be built into the motor 51.

[0043] The guide portion can be a rack 54, and the drive gear 53 meshes with the rack 54. The rack 54 is fixed to the support structure 3. In this way, when the motor 51 rotates, the drive gear 53 moves along the length of the rack 54, thereby driving the movement of the telescopic arm 4 relative to the support structure 3. The direction of movement of the drive gear 53 along the length of the rack 54 can be adjusted by rotating the motor 51 forward and reverse.

[0044] In some embodiments, the speed at which the drive gear 53 moves along the length direction of the rack 54 can be adjusted by controlling the speed of the motor 51 .

[0045] 2 or 3 , in one embodiment, the telescopic arm 4 is connected to a drive unit connection frame 6 , and the drive unit is detachably mounted on the drive unit connection frame 6 via a fastener (not shown in the figure).

[0046] In one example, a sliding plate 42 may be provided at the bottom of the telescopic arm 4, and the drive unit connecting frame 6 may be connected side by side to the sliding plate 42. For example, the drive unit connecting frame 6 and the sliding plate 42 may be fixedly connected via a connecting plate, with fixing holes provided at both ends of the connecting plate, through which connecting fasteners are respectively fixed to the sliding plate 42 and the drive unit connecting frame, wherein the connecting fasteners may be fastening screws.

[0047] In another example, the driving part may be provided with a connecting hole, and a fastener may pass through the connecting hole to fix the driving part to the driving part connecting frame 6. The driving part can be removed from the driving part connecting frame 6 by removing the fastener, wherein the fastener may be a fastening screw, a fastening bolt, etc.

[0048] As a specific embodiment, a slot may be provided on the driving unit connecting frame 6, and the reducer 52 is provided in the slot, and there is a gap between the outer wall of the reducer 52 and the inner wall of the slot. In this way, the position of the reducer 52 of the driving unit in the slot can be adjusted through the gap, thereby adjusting the relative position between the driving gear 53 of the driving unit and the rack 54 on the supporting structure 3, so as to adjust the meshing tightness between the driving gear 53 and the rack 54, obtain the appropriate meshing tightness, and ensure the reliability of the operation between the gear and the rack 54.

[0049] When the driving part includes a motor 51, a reducer 52 and a driving gear 53, and the guiding part is a rack 54, in one embodiment, a tightness maintaining mechanism for maintaining the tightness of the engagement between the driving gear 53 and the rack 54 may be provided on the driving part connecting frame 6. In this way, as the engagement transmission time between the driving gear 53 and the rack 54 increases, or under the influence of other external factors, when the connection between the driving part and the driving part connecting frame 6 becomes loose, the appropriate tightness of the engagement between the driving gear 53 and the rack 54 can still be maintained by the tightness maintaining mechanism, thereby ensuring the reliability of the operation between the gear and the rack 54.

[0050] Referring to Figure 2 or Figure 3, as an optional embodiment, the tightness maintaining mechanism may include a sheet metal 7 connected to the drive part connecting frame 6, and a threaded hole may be provided on the sheet metal 7. A screw that matches the thread of the threaded hole may be passed through the threaded hole, and one end of the screw may be pressed against the side of the reducer 52 away from the rack 54.

[0051] Specifically, after adjusting the distance between the driving gear 53 and the rack 54 of the driving part to obtain the appropriate meshing tightness, the driving part is fixed on the driving part connecting frame 6, a screw can be inserted into the threaded hole so that one end of the screw is pressed against the side of the reducer 52 away from the rack 54. In this way, when the connection between the driving part and the driving part connecting frame 6 is loose, the screw can apply a force to the reducer 52 to maintain the meshing tightness between the driving gear 53 connected to the reducer 52 and the rack 54, thereby ensuring the reliability of the operation between the gear and the rack 54.

[0052] In one example, one side of the driving portion connecting frame 6 may be subjected to a stamping and bending process to form the sheet metal 7 in this embodiment.

[0053] In the process of moving the goods to the designated location after the telescopic arm 4 picks up the goods, in order to eliminate the horizontal lateral deviation between the telescopic arm 4 and the designated goods moving position caused by the tilt of the frame 2, the telescopic arm 4 can be returned to the starting position first, and then the goods are moved to the designated location by the telescopic arm 4, so as to improve the efficiency of moving the goods to the designated location.

[0054] 2 , in one embodiment, a photoelectric switch 8 is provided on the telescopic arm 4 . The photoelectric switch 8 includes a transmitting portion (not shown in the figure) and a receiving portion (not shown in the figure) that are arranged opposite to each other.

[0055] Specifically, the transmitting portion of the photoelectric switch 8 can generate signal light, and the receiving portion of the photoelectric switch 8 can collect the signal light. In one example, when the receiving portion of the photoelectric switch 8 collects the signal light generated by the transmitting portion of the photoelectric switch 8, a first electrical feedback can be generated. When the receiving portion of the photoelectric switch 8 cannot collect the signal light generated by the transmitting portion of the photoelectric switch 8, a second electrical feedback can be generated. Exemplarily, the first electrical feedback of the photoelectric switch 8 can connect the signal feedback circuit in which the photoelectric switch 8 is located, and the second electrical feedback of the photoelectric switch 8 can disconnect the signal feedback circuit in which the photoelectric switch 8 is located.

[0056] As shown in Figure 3, a shielding member 33 may be provided on the supporting structure 3, and the shielding member 33 may be located between the transmitting part and the receiving part of the photoelectric switch 8; the telescopic arm correction mechanism 5 is activated, so that the telescopic arm 4 moves forward or reverse relative to the starting position relative to the supporting structure 3, along the extension direction perpendicular to the telescopic arm 4.

[0057] As shown in Figure 3, the shielding member 33 on the support structure 3 can be arranged side by side with the rack 54. In one example, the first end of the shielding member 33 and one end of the rack 54 are on the same straight line, and the second end of the shielding member 33 and the center point of the rack 54 are on the same straight line. In other words, the length of the shielding member 33 can be half the length of the rack 54.

[0058] The starting position can be set according to the actual project. For example, in this embodiment, the edge of the shielding member 33 on one side inside the support structure 3 can be set as the starting position, which also corresponds to the center point of the rack 54.

[0059] In one example, the direction of the shield 33 along the length of the rack 54 can be set as the forward direction, and the other direction along the length of the rack 54 can be set as the reverse direction. In this way, when the photoelectric switch 8 moves with the telescopic arm 4, so that the shield 33 is located between the transmitting and receiving parts of the photoelectric switch 8, the receiving part of the photoelectric switch 8 cannot collect the signal light generated by the transmitting part of the photoelectric switch 8, and the telescopic arm 4 can be determined to be moving in the forward direction. Conversely, the telescopic arm 4 can be determined to be moving in the reverse direction. In this way, by setting up the photoelectric switch 8 and the shield 33, the direction of the telescopic arm 4 relative to the starting position can be easily determined, thereby causing the telescopic arm 4 to move toward the starting position and quickly return to the initial position.

[0060] In one embodiment, a photoelectric switch fixing sheet metal 9 is provided on the telescopic arm 4, and a second threaded hole is provided on the photoelectric switch fixing sheet metal 9 and the photoelectric switch 8 respectively, and a second screw threadedly matched with the second threaded hole is passed through the second threaded hole.

[0061] The plate-like sheet metal can be stamped and bent to obtain a photoelectric switch fixing sheet metal 9 with a recessed main body. The photoelectric switch fixing sheet metal 9 can be connected to the side of the telescopic arm 4 facing the support structure 3 through the connecting parts at both ends. A second threaded hole can be provided on the recessed main body of the photoelectric switch fixing sheet metal 9, so that the second screw can pass through the recessed main body of the photoelectric switch fixing sheet metal 9 and enter the threaded holes on the photoelectric switch fixing sheet metal 9 and the photoelectric switch 8 to fix the photoelectric switch 8 on the telescopic arm 4.

[0062] As an optional embodiment, the photoelectric switch fixing sheet metal 9 can be arranged on the driving part connecting frame 6. Specifically, it can be arranged on the side of the driving part connecting frame 6 facing the supporting structure 3.

[0063] As shown in Figure 3, when the components move relative to each other, in order to avoid damaging the connecting wires between the components, in one embodiment, the handling device also includes a movable wire harness 10, and the movable wire harness 10 includes a movable end and a fixed end. The movable end of the movable wire harness 10 is fixed on the telescopic arm 4, and the fixed end of the movable wire harness 10 is fixed on the support structure 3.

[0064] Connecting wires of the various components of the transport device may be provided in the movable wiring harness 10. For example, the connecting wires of the telescopic arm 4 and the motor 51 of the driving unit may be provided in the movable wiring harness 10. In this way, when the telescopic arm 4 of the transport device moves relative to the supporting structure 3 along the extending direction perpendicular to the telescopic arm 4, the movable end of the movable wiring harness 10 can drive the part of the movable wiring harness 10 other than the fixed end to move, thereby driving the connecting wires of the telescopic arm 4 and the motor 51 of the driving unit to move together, avoiding relative movement between the connecting wires, thereby avoiding entanglement and pulling between the connecting wires, and further avoiding damage to the connecting wires between the components.

[0065] 3 , for example, the movable harness 10 may be a drag chain, the movable end of the drag chain may be fixedly connected to the sliding plate 42 of the telescopic arm 4 via the drag chain fixing sheet metal 12 , and the fixed end of the drag chain may be fixedly connected to the support structure 3 via the drag chain fixing sheet metal 12 .

[0066] As shown in Figure 3, in one embodiment, a wire hole 34 corresponding to the movable wire harness 10 may be provided on the support structure 3. The connecting wires of the various components of the transport device in the movable wire harness 10 can pass through the wire hole 34 and be led from the bottom side of the support structure 3 to the portal frame, and then be led along the portal frame to the vehicle body 1.

[0067] The transport device can transport cargo to be transported from a first location to a second location (target location). The first location and the second location can be different locations on the same plane or different locations on different planes. When the first location and the second location are different locations on different planes, the distance between the first location and the second location includes both the horizontal distance and the vertical distance.

[0068] In order to enable the telescopic arm 4 on the support structure 3 to move along the vertical direction of the frame 2, in one embodiment, a chain transmission assembly (not shown in the figure) is provided on the frame 2, and the support structure 3 is laterally connected to the chain links of the chain transmission assembly.

[0069] For example, sprockets may be provided at the top and bottom ends of the frame 2 , respectively. A chain consisting of a plurality of chain links may be provided around the sprockets, and the transversely provided support structure 3 may be connected to the chain links.

[0070] In one example, the frame 2 is a gantry structure, two chain transmission assemblies are oppositely arranged on the gantry, and two ends of the transversely arranged support structure 3 are respectively connected to two opposite chain links on the gantry.

[0071] In order to make the body 1 of the transport device move more smoothly and safely when grabbing the goods to be transported on the telescopic arm 4 on the body 1, after the telescopic arm 4 grabs the goods to be transported and moves to the initial position, the support structure 3 can be moved vertically along the door frame on the body 1 to a safe position at a preset distance from the body 1. For example, the preset distance can be 18-22 mm.

[0072] The handling device provided in this embodiment can move cargo from a first position to a second position by moving the handling device via the vehicle body 1 to a ground-projected position corresponding to a first designated position of the first position. The chain drive assembly and support structure 3 on the frame 2 can then move the telescopic arm 4 to the plane of the first position. The telescopic arm deviation correction mechanism 5 can then eliminate the error between the initial position of the telescopic arm 4 and the first designated position corresponding to the first position, thereby enabling the telescopic arm 4 to pick up the cargo. In some examples, the first designated position and the first position are in the same horizontal plane parallel to the ground and are close to the first position to facilitate the handling device to grab the cargo from the first position.

[0073] After the telescopic arm 4 grabs the goods to be transported, it can be moved back to the initial position under the drive of the telescopic arm correction mechanism 5, wherein the photoelectric switch 8 moves back to the initial position together with the telescopic arm 4, as shown in Figure 4, and can be moved back to a safe position under the drive of the support structure 3.

[0074] As shown in FIG5 , the transport device can then be moved via the vehicle body 1 to a ground projection position corresponding to the second designated position of the second position. The chain drive assembly and support structure 3 on the frame 2 can then move the telescopic arm 4 to the plane of the second position. As shown in FIG6 , the telescopic arm deviation correction mechanism 5 can be used to eliminate the error between the initial position of the telescopic arm 4 and the second designated position corresponding to the second position. The two arrows in FIG6 indicate the movement direction of the telescopic arm. As shown in FIG7 , the cargo to be transported can then be transported to the second position via the telescopic arm 4. In some examples, the second designated position and the second position are in the same horizontal plane parallel to the ground and are close to the second position to facilitate the transport device to move the cargo to the second position.

[0075] After the telescopic arm 4 has carried the goods, it can be moved back to the initial position under the drive of the telescopic arm correction mechanism 5 and moved back to the safe position under the drive of the support structure 3, wherein the photoelectric switch 8 moves back to the initial position together with the telescopic arm 4.

[0076] In order to simultaneously transport multiple goods on the same shelf, in one embodiment, the transport device further includes a rack 11 provided with multiple material box storage locations, and the rack 11 is fixed to the vehicle body 1. In this way, the goods taken from the shelf by the telescopic arm 4 can be temporarily placed on the rack 11 on the vehicle body 1. After the rack 11 on the vehicle body 1 is filled, they are transported together, thereby improving the efficiency of transporting multiple goods on the same shelf.

[0077] Each embodiment in this specification is described in a related manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0078] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A transport device, comprising: A vehicle body (1), a frame (2) being fixed on the vehicle body (1), and a supporting structure (3) being laterally connected to the frame (2); A telescopic arm (4), wherein the telescopic arm (4) is arranged on the supporting structure (3); A telescopic arm correction mechanism (5), wherein the telescopic arm correction mechanism (5) is connected to the telescopic arm (4) and the supporting structure (3) respectively; when the telescopic arm correction mechanism (5) is actuated, the telescopic arm (4) moves relative to the supporting structure (3) in a direction perpendicular to the extension direction of the telescopic arm (4).

2. The transport device according to claim 1, characterized in that: The support structure (3) is provided with a slide rail (31), and a slide groove (32) is provided on the side of the slide rail (31); The telescopic arm (4) is provided with a sliding connection block (41), the sliding connection block (41) has an assembly groove, and a protrusion is provided on the inner wall of the assembly groove; The telescopic arm (4) is supported on the slide rail (31) of the support structure (3) via the sliding connection block (41), wherein the protrusion on the inner wall of the assembly groove is located in the slide groove (32).

3. The transport device according to claim 1, characterized in that: The telescopic arm deviation correction mechanism (5) comprises a driving part and a guiding part, wherein the driving part is arranged on the telescopic arm (4), and the guiding part is arranged on the supporting structure (3), and the guiding part and the driving part form a kinematic pair.

4. The transport device according to claim 3, characterized in that: The driving unit comprises a motor (51), a reducer (52) and a driving gear (53); the motor (51) is connected to the reducer (52), and the driving gear (53) is connected to the output shaft of the reducer (52); The guiding part is a rack (54), and the driving gear (53) is meshed with the rack (54).

5. The transport device according to claim 4, characterized in that: The telescopic arm (4) is connected to a drive unit connecting frame (6), and the drive unit is detachably arranged on the drive unit connecting frame (6) via a fastener; The driving part connecting frame (6) is provided with a tension maintaining mechanism for maintaining the tension of the meshing between the driving gear (53) and the rack (54).

6. The transport device according to claim 5, characterized in that: The driving part connecting frame (6) is provided with a notch, the reducer (52) is arranged in the notch, and there is a gap between the outer wall of the reducer (52) and the inner wall of the notch; The tension maintaining mechanism comprises a sheet metal (7) connected to the drive unit connecting frame (6), a first threaded hole being provided on the sheet metal (7), a first screw threadably matched with the first threaded hole being passed through the first threaded hole, and one end of the first screw being pressed against a side of the reducer (52) away from the rack (54).

7. The transport device according to claim 1, characterized in that: The telescopic arm (4) is provided with a photoelectric switch (8), and the photoelectric switch (8) comprises a transmitting part and a receiving part which are arranged opposite to each other; The support structure (3) is provided with a shielding member (33), and the shielding member (33) is located between the transmitting part and the receiving part of the photoelectric switch (8); The telescopic arm deviation correction mechanism (5) is actuated, so that the telescopic arm (4) moves relative to the support structure (3) in a positive or negative direction relative to the starting position along a direction perpendicular to the extension of the telescopic arm (4).

8. The transport device according to claim 7, characterized in that: The telescopic arm (4) is provided with a photoelectric switch fixing sheet metal (9), and the photoelectric switch fixing sheet metal (9) and the photoelectric switch (8) are respectively provided with a second threaded hole, and a second screw threadably matched with the second threaded hole is passed through the second threaded hole.

9. The handling device according to claim 1, further comprising a movable cable harness (10), The movable cable harness (10) comprises a movable end and a fixed end. The movable end of the movable cable harness (10) is fixed on the telescopic arm (4). The fixed end of the movable wiring harness (10) is fixed on the supporting structure (3).

10. The transport device according to claim 1, characterized in that: The frame (2) is provided with a chain transmission assembly, and the support structure (3) is transversely connected to the chain links of the chain transmission assembly.

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