Automatic parking device of pneumatic monorail hoist

Abstract

The invention discloses an automatic parking device of a pneumatic monorail hoist, and relates to the technical field of pneumatic monorail hoists. The problem of parking errors of the pneumatic monorail hoist is solved. The device specifically comprises a mounting plate and wheels, parking mechanisms are arranged on one side of the mounting plate, the output ends of the parking mechanisms are fixedly connected with speed reducing plates, the speed reducing plates are located on the outer sides of the circumferences of the wheels, the outer walls of the centers of the wheels are connected with mounting shafts through threads, and hydraulic cylinders are arranged at the driving ends of the parking mechanisms; fixing parts are fixedly connected to one sides of the four corners of the mounting plate, and the parking mechanism comprises a U-shaped base, a first guide rod, an L-shaped support, a guide shaft, a transverse rod, a first support, a second support, a first supporting rod, a second supporting rod, a fixing shaft, a fixing hole, a moving plate, a fixing block, a spring, a second guide rod and a pressure sensor. According to the invention, the parking quality of the wheel is effectively ensured, the wheel is ensured to accurately stop rotating and reach a specified buffer position, and the effect of protecting the parking safety of the pneumatic monorail hoist is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of pneumatic monorail cranes, and in particular to an automatic parking device for pneumatic monorail cranes. Background Art

[0002] Pneumatic monorail crane is a kind of equipment commonly used for material handling and loading and unloading on industrial production lines. It usually consists of a beam, a hook, a pulley, a pneumatic system, etc. The characteristics of pneumatic monorail crane include simple structure, easy operation, smooth operation, safety and reliability, etc. The crossbeam of the pneumatic monorail crane is installed on an elevated track, and the movement on the track is achieved through pulleys and pneumatic systems. The hook can move up and down for lifting materials. The pneumatic system controls the movement and operation of the crane through air pressure, which can achieve fast and accurate handling operations. Pneumatic monorail cranes are generally suitable for the handling and loading and unloading of light materials, such as transporting materials from one station to another on a production line. In the marine field, pneumatic monorail cranes are often used in docks, ports, docks and other places for cargo loading and unloading and transportation. Automatic parking technology can improve the operating efficiency and safety of pneumatic monorail cranes, especially in busy dock environments. The automatic parking function can reduce human operation errors and improve the accuracy and stability of the crane. The application of automatic parking technology can improve the efficiency and safety of crane operation, which is particularly important in complex marine environments and busy loading and unloading needs.

[0003] After searching, the invention with Chinese patent publication number CN216004960U discloses a pneumatic monorail crane automatic parking device, including a crane guide rail, a crane is slidably connected inside the crane guide rail, a pneumatic pump is welded on the top of the crane, a guide rail inner cavity is welded on the front and back inner walls of the crane guide rail, a fixing plate that penetrates and extends into the guide rail inner cavity is sleeved on the front and back of the guide rail inner cavity, and a fixing bracket is welded on one end of the fixing plate that is close to each other. The pneumatic monorail crane automatic parking device in the above invention has the following shortcomings: Although the overall device changes the originally closed and energized state of the conductive block, thereby disconnecting the current of the external power supply from the access end of the air pressure pump, it is difficult to accurately control the subsequent wheel deceleration and parking positions by turning the power on and off to perform deceleration and parking operations, which can easily lead to errors and affect the operating efficiency of the equipment. Therefore, there is an urgent need for an automatic parking device for a pneumatic monorail crane. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an automatic parking device for a pneumatic monorail crane.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A pneumatic monorail crane automatic parking device comprises a mounting plate and a wheel, a parking mechanism is arranged on one side of the mounting plate, and a speed reducer is fixedly connected to the output end of the parking mechanism, and the speed reducer is located outside the circumference of the wheel, a mounting shaft is threadedly connected to the central outer wall of the wheel, a hydraulic cylinder is arranged on the driving end of the parking mechanism, fixing parts are fixedly connected to one side of the four corners of the mounting plate, an auxiliary braking mechanism is arranged on the side of the mounting plate close to the center of the parking mechanism, and the auxiliary braking mechanism is located on one side of the wheel.

[0006] Preferably: the parking mechanism includes a U-shaped seat, a guide rod 1, an L-shaped bracket, a guide shaft, a cross bar, a support 1, a support 2, a support rod 1, a support rod 2, a fixed shaft, a fixed hole, a movable plate, a fixed block, a spring, a guide rod 2 and a pressure sensor, and the U-shaped seat is fixedly connected to one side of the bottom of the speed reducer, and one end of the guide rod is rotatably connected to the inner side of the U-shaped seat through a rotating shaft, the L-shaped bracket is rotatably connected to the other end of guide rod 1, a connecting plate is fixedly connected between every two L-shaped brackets, and the guide shaft rotates and passes through the connecting plate, and the cross bar is integrally formed on one side of the L-shaped bracket.

[0007] When the hydraulic cylinder extends, it pushes the top of the L-shaped bracket outward. At this time, the bottom of the L-shaped bracket is inward, and the end of the cross bar close to the moving plate tilts upward. The cross bar pulls the guide rod 2 to swing, so that the moving plate slides upward on the support rods 1 and 2. The auxiliary brake mechanism is driven by the moving moving plate. In the meantime, the bottom end of the L-shaped bracket pushes the guide rod 1 to move, so that the speed reducer on the U-shaped seat on one side of the end of the guide rod completes the friction parking work of the wheel. When the hydraulic cylinder contracts, the top of the L-shaped bracket is pushed inward and the bottom of the L-shaped bracket is pushed outward. The end of the cross bar close to the movable plate tilts downward, and the cross bar pulls the guide rod 2 to swing, so that the movable plate slides downward on the support rod 1 and the support rod 2. The moving movable plate drives the auxiliary braking mechanism to reset, and the bottom end of the L-shaped bracket pushes the guide rod 1 to move, so that the speed reducer on the U-shaped seat on one side of the end of the guide rod is reset.

[0008] Furthermore: the support one and the support two are respectively rotatably connected to the opposite sides of the top ends of the two pairs of L-shaped brackets, the support one is rotatably connected to the piston end of the hydraulic cylinder, the support two is rotatably connected to one side of the base of the hydraulic cylinder, and the guide rod two is rotatably connected to the end of the cross bar.

[0009] On the basis of the above scheme: the movable plate is rotatably connected to the bottom end of the second guide rod, the first support rod is connected to the middle side of the mounting plate by bolts, and the second support rod is fixedly connected to one side of the first support rod.

[0010] A better solution in the above solution is: the fixed shaft is fixedly connected to the bottom side of the support rod one, and the fixing hole is opened on the top side of the support rod one.

[0011] As a further solution of the present invention: the support rod one and the support rod two are inserted in the middle of the movable plate, and the movable plate forms a sliding fit with one side of the support rod and the other side of the support rod, and the pressure sensor is fixedly connected to the bottom outer wall of the mounting plate close to both sides of the support rod one; during the upward movement of the movable plate, the springs on the top of the fixed blocks on both sides of the movable plate are compressed and squeezed to the pressure sensor, and at this time the pressure sensor can monitor and record the squeezing force to ensure that the pressure required for the movable plate 712 to move upward each time is recorded, thereby obtaining the safety range value for automatic parking through a large number of tests.

[0012] At the same time, the fixed block is fixedly connected to both sides of the moving plate, the spring is fixedly connected to the top of the fixed block, and a notch is opened on one side of the moving plate.

[0013] As a preferred embodiment of the present invention: the auxiliary braking mechanism includes a clamping plate, a screw, a connecting rod, a gear, a rack plate, a cross guide groove and a slider, and the connecting rod is fixedly connected to the circumference of the fixed shaft, the screw is rotatably connected to the bottom end of the connecting rod, and the gear is connected to the end circumference of the screw through a thread, and the top end of the rack plate is fixedly connected to the notch.

[0014] At the same time, the rack plate and the gear are meshed with each other, and the clamping plate is sleeved on the circumference of the screw rod, and the sliding block is fixedly connected to the top middle of the clamping plate.

[0015] As a more preferred solution of the present invention: the cross guide groove is provided at the bottom of the support rod 1 and the support rod 2, and the sliding block forms a sliding fit with the cross guide groove.

[0016] The beneficial effects of the present invention are: 1. This pneumatic monorail crane automatic parking device completes the telescopic movement by starting the hydraulic cylinder. When the hydraulic cylinder is extended, it pushes the top of the L-shaped bracket outward. At this time, the bottom of the L-shaped bracket is inward, and the end of the cross bar close to the movable plate is tilted upward. The cross bar pulls the guide rod 2 to swing, so that the movable plate slides upward on the support rod 1 and the support rod 2, and the auxiliary braking mechanism is driven to work through the moving movable plate. In the meantime, the bottom end of the L-shaped bracket pushes the guide rod 1 to move, so that the speed reducer on the U-shaped seat on one side of the end of the guide rod completes the friction parking work of the wheel, effectively ensuring the parking quality of the wheel, ensuring that the wheel stops rotating accurately, and reaches the designated buffer position, which plays a role in protecting the parking safety of the pneumatic monorail crane.

[0017] 2. This is an automatic parking device for a pneumatic monorail crane. During this period, when the movable plate moves upward, the springs on the top of the fixed blocks on both sides of the movable plate are compressed and squeezed to the pressure sensor. At this time, the pressure sensor can monitor and record the squeezing force to ensure that the pressure required for the movable plate to move up the distance each time is recorded. The safety range value for automatic parking is obtained through a large number of tests, thereby improving the accuracy of automatic parking of the pneumatic monorail crane.

[0018] 3. This is an automatic parking device for a pneumatic monorail crane. When the hydraulic cylinder contracts, it pushes the top of the L-shaped bracket inward and the bottom of the L-shaped bracket outward. The end of the cross bar close to the movable plate tilts downward, and the cross bar pulls the guide rod 2 to swing, so that the movable plate slides downward on the support rod 1 and the support rod 2. The moving movable plate drives the auxiliary braking mechanism to reset, and the bottom end of the L-shaped bracket pushes the guide rod 1 to move, so that the speed reducer on the U-shaped seat on one side of the end of the guide rod is reset, which effectively improves the automation level of the pneumatic monorail crane.

[0019] 4. This pneumatic monorail crane automatic parking device, when the moving plate is moving, it drives the rack plate at one corner to move vertically, and the moving rack plate drives the gear on one side to complete the rotation, the rotating gear drives the screw on its inner circumference to rotate, and the clamping plate on the circumference of the rotating screw completes the horizontal displacement, so that the clamping plate approaches the rotating wheel side and gradually fits it. During this period, the slider located on the top of the clamping plate performs limited sliding in the cross guide groove, thereby completing the clamping and braking of the wheel by the clamping plate through the moving moving plate, which promotes the auxiliary braking effect of the wheel during movement, ensures the stability of the wheel, and avoids the problem of lateral deviation of the wheel during parking and parking failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of a pneumatic monorail crane automatic parking device proposed by the present invention; Figure 2 A schematic side view of the structure of a pneumatic monorail crane automatic parking device proposed by the present invention; Figure 3 A schematic diagram of the top view of the automatic parking device for a pneumatic monorail crane proposed by the present invention; Figure 4 This is a schematic diagram of the structure of the support rod 1 and the support rod 2 in the pneumatic monorail crane automatic parking device proposed by the present invention; Figure 5 This is a schematic diagram of the back structure of a pneumatic monorail crane automatic parking device proposed by the present invention; Figure 6 This is a partial structural schematic diagram of the back side of a moving plate in a pneumatic monorail crane automatic parking device proposed by the present invention; Figure 7 This is a schematic diagram of the partial structure of the front side of a moving plate in a pneumatic monorail crane automatic parking device proposed by the present invention; Figure 8 The present invention provides a partial structural schematic diagram of an auxiliary braking mechanism in an automatic parking device for a pneumatic monorail crane.

[0021] In the figure: 1, mounting plate; 2, hydraulic cylinder; 3, fixing piece; 4, connecting plate; 5, deceleration plate; 6, wheel; 7, parking mechanism; 8, mounting shaft; 9, rotating shaft; 10, auxiliary braking mechanism; 701, U-shaped seat; 702, guide rod 1; 703, L-shaped bracket; 704, guide shaft; 705, cross bar; 706, support 1; 707, support 2; 708, support rod 1; 709, support rod 2; 710, fixed shaft; 711, fixing hole; 712, moving plate; 713, fixing block; 714, spring; 715, guide rod 2; 716, pressure sensor; 1001, clamping plate; 1002, screw rod; 1003, connecting rod; 1004, gear; 1005, rack plate; 1006, cross guide groove; 1007, slider. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1:

[0026] A pneumatic monorail crane automatic parking device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, it includes a parking mechanism 7 and a wheel 6 fixed to one side of a mounting plate 1, the output end of the parking mechanism 7 is fixedly connected with a deceleration plate 5, and the deceleration plate 5 is located outside the circumference of the wheel 6, the central outer wall of the wheel 6 is connected with a mounting shaft 8 through a thread, the driving end of the parking mechanism 7 is provided with a hydraulic cylinder 2, one side of the four corners of the mounting plate 1 is fixedly connected with a fixing member 3, and the mounting plate 1 is provided with an auxiliary braking mechanism 10 on the side close to the center of the parking mechanism 7, and the auxiliary braking mechanism 10 is located on one side of the wheel 6; In order to effectively and safely park the wheel 6 and ensure the parking quality of the pneumatic monorail crane; Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the parking mechanism 7 includes a U-shaped seat 701, a guide rod 1 702, an L-shaped bracket 703, a guide shaft 704, a cross bar 705, a support 1 706, a support 2 707, a support rod 1 708, a support rod 2 709, a fixed shaft 710, a fixed hole 711, a movable plate 712, a fixed block 713, a spring 714, a guide rod 2 715 and a pressure sensor 716, and the U-shaped seat 701 is fixedly connected to one side of the bottom of the deceleration plate 5, and the end of the guide rod 1 702 is rotatably connected to the inner side of the U-shaped seat 701 through the rotating shaft 9, the L-shaped bracket 703 is rotatably connected to the other end of the guide rod 1 702, a connecting plate 4 is fixedly connected between every two L-shaped brackets 703, and the guide shaft 704 rotates and passes through the connecting plate 4, and the cross bar 705 is integrally formed on one side of the L-shaped bracket 703; The support 1 706 and the support 2 707 are respectively rotatably connected to the opposite sides of the top of the two pairs of L-shaped brackets 703, the support 1 706 is rotatably connected to the piston end of the hydraulic cylinder 2, the support 2 707 is rotatably connected to one side of the base of the hydraulic cylinder 2, the guide rod 2 715 is rotatably connected to the end of the cross bar 705, the movable plate 712 is rotatably connected to the bottom end of the guide rod 2 715, the support rod 1 708 is connected to the middle side of the mounting plate 1 by bolts, the support rod 2 709 is fixedly connected to one side of the support rod 1 708, the fixed shaft 710 is fixedly connected to the bottom side of the support rod 1 708, and the fixing hole 711 is opened on the top side of the support rod 1 708; The support rod 1 708 and the support rod 2 709 are inserted in the middle of the movable plate 712, and the movable plate 712 forms a sliding fit with the side of the support rod 1 708 and the side of the support rod 2 709. The pressure sensor 716 is fixedly connected to the bottom outer wall of the mounting plate 1 close to both sides of the support rod 1 708. The fixed block 713 is fixedly connected to both sides of the movable plate 712. The spring 714 is fixedly connected to the top of the fixed block 713. A notch is opened on one side of the movable plate 712. The model of the pressure sensor 716 is ASDX005D44R-EX. During operation, the telescopic movement is completed by starting the hydraulic cylinder 2. When the hydraulic cylinder 2 is extended, the top of the L-shaped bracket 703 is pushed outward. At this time, the bottom of the L-shaped bracket 703 is inward, and the end of the cross bar 705 close to the movable plate 712 is tilted upward. The cross bar 705 pulls the guide rod 2 715 to swing, so that the movable plate 712 slides upward on the support rod 1 708 and the support rod 2 709, and the auxiliary braking mechanism 10 is driven to work through the moving movable plate 712. In the meantime, the bottom end of the L-shaped bracket 703 pushes the guide rod 1 702 to move, so that the speed reducer 5 of the U-shaped seat 701 on one side of the end of the guide rod 1 702 completes the friction parking of the wheel 6, effectively ensuring the parking quality of the wheel 6, ensuring that the wheel 6 stops rotating accurately, and reaches the specified buffer position, which plays a role in protecting the parking safety of the pneumatic monorail crane.

[0027] During this period, as the movable plate 712 moves upward, the springs 714 on the top of the fixed blocks 713 on both sides of the movable plate 712 are compressed and squeezed to the pressure sensors 716. At this time, the pressure sensors 716 can monitor and record the squeezing force to ensure that the pressure required for the movable plate 712 to move upward each time is recorded. The safety range value for automatic parking is obtained through a large number of tests, thereby improving the accuracy of automatic parking of the pneumatic monorail crane.

[0028] When the embodiment is working, the hydraulic cylinder 2 is started to complete the telescopic movement. When the hydraulic cylinder 2 is extended, the top of the L-shaped bracket 703 is pushed outward. At this time, the bottom of the L-shaped bracket 703 is inward, and the end of the cross bar 705 close to the movable plate 712 is tilted upward. The cross bar 705 pulls the guide rod 2 715 to swing, so that the movable plate 712 slides upward on the support rod 1 708 and the support rod 2 709. The auxiliary brake mechanism 10 is driven to work through the moving movable plate 712. In the meantime, the bottom end of the L-shaped bracket 703 pushes the guide rod 1 702 to move, so that the speed reducer 5 of the U-shaped seat 701 on one side of the end of the guide rod 1 702 completes the friction parking work of the wheel 6. When the hydraulic cylinder 2 contracts, the top of the L-shaped bracket 703 is pushed inward, the bottom of the L-shaped bracket 703 is pushed outward, and the end of the cross bar 705 close to the movable plate 712 tilts downward. The cross bar 705 pulls the guide rod 2 715 to swing, so that the movable plate 712 slides downward on the support rod 1 708 and the support rod 2 709. The auxiliary brake mechanism 10 is reset by the moving movable plate 712. The bottom end of the L-shaped bracket 703 pushes the guide rod 1 702 to move, so that the speed reducer 5 of the U-shaped seat 701 on one side of the end of the guide rod 1 702 is reset; During the upward movement of the movable plate 712, the springs 714 on the top of the fixed blocks 713 on both sides of the movable plate 712 are compressed and squeezed to the pressure sensors 716. At this time, the pressure sensors 716 can monitor and record the squeezing force to ensure that the pressure required for each upward movement distance of the movable plate 712 is recorded, thereby obtaining the safety range value for automatic parking through a large number of tests. Embodiment 2:

[0029] A pneumatic monorail crane automatic parking device, such as Figure 8 As shown, in order to assist the braking of the wheel 6 and ensure the parking stability of the wheel 6; this embodiment makes the following improvements on the basis of embodiment 1: the auxiliary braking mechanism 10 includes a clamping plate 1001, a screw rod 1002, a connecting rod 1003, a gear 1004, a rack plate 1005, a cross guide groove 1006 and a slider 1007, and the connecting rod 1003 is fixedly connected to the circumference of the fixed shaft 710, the screw rod 1002 is rotatably connected to the bottom end of the connecting rod 1003, and the gear 1004 is connected to the end circumference of the screw rod 1002 by a thread, and the top end of the rack plate 1005 is fixedly connected to the notch; The rack plate 1005 and the gear 1004 are meshed with each other, and the clamping plate 1001 is sleeved on the circumference of the screw rod 1002, the slider 1007 is fixedly connected to the top middle of the clamping plate 1001, the cross guide groove 1006 is opened at the bottom of the support rod 1 708 and the support rod 2 709, and the slider 1007 and the cross guide groove 1006 form a sliding fit; When the movable plate 712 moves, it drives the rack plate 1005 at one corner to move vertically, and the moving rack plate 1005 drives the gear 1004 on one side to complete the rotation, and the rotating gear 1004 drives the screw 1002 on its inner circumference to rotate, and the clamping plate 1001 on the circumference of the rotating screw 1002 completes the horizontal displacement, so that the clamping plate 1001 approaches and gradually fits to the side of the rotating wheel 6. During this period, the slider 1007 located on the top of the clamping plate 1001 performs a limited sliding in the cross guide groove 1006. Thus, the clamping and braking of the wheel 6 by the clamping plate 1001 is completed through the moving movable plate 712, which promotes the auxiliary braking effect of the wheel 6 during movement, ensures the stability of the wheel 6, and avoids the problem of lateral deviation and parking failure of the wheel 6 during parking.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pneumatic monorail crane automatic parking device, comprising a mounting plate (1) and a wheel (6), characterized in that: A parking mechanism (7) is provided on one side of the mounting plate (1), and a deceleration plate (5) is fixedly connected to the output end of the parking mechanism (7), and the deceleration plate (5) is located outside the circumference of the wheel (6). The central outer wall of the wheel (6) is connected to a mounting shaft (8) via a thread. A hydraulic cylinder (2) is provided on the driving end of the parking mechanism (7), and fixing parts (3) are fixedly connected to one side of the four corners of the mounting plate (1). An auxiliary braking mechanism (10) is provided on the side of the mounting plate (1) close to the center of the parking mechanism (7), and the auxiliary braking mechanism (10) is located on one side of the wheel (6).

2. The automatic parking device for pneumatic monorail crane according to claim 1, characterized in that: The parking mechanism (7) comprises a U-shaped seat (701), a guide rod 1 (702), an L-shaped bracket (703), a guide shaft (704), a cross bar (705), a support 1 (706), a support 2 (707), a support rod 1 (708), a support rod 2 (709), a fixed shaft (710), a fixed hole (711), a movable plate (712), a fixed block (713), a spring (714), a guide rod 2 (715) and a pressure sensor (716), and the U The U-shaped seat (701) is fixedly connected to one side of the bottom of the speed reducer (5), and the end of the guide rod (702) is rotatably connected to the inner side of the U-shaped seat (701) through a rotating shaft (9). The L-shaped bracket (703) is rotatably connected to the other end of the guide rod (702). A connecting plate (4) is fixedly connected between every two L-shaped brackets (703), and the guide shaft (704) rotatably passes through the connecting plate (4). The cross bar (705) is integrally formed on one side of the L-shaped bracket (703).

3. The automatic parking device for pneumatic monorail crane according to claim 2, characterized in that: The support 1 (706) and the support 2 (707) are respectively rotatably connected to opposite sides of the top ends of the two pairs of L-shaped brackets (703); the support 1 (706) is rotatably connected to the piston end of the hydraulic cylinder (2); the support 2 (707) is rotatably connected to one side of the base of the hydraulic cylinder (2); and the guide rod 2 (715) is rotatably connected to the end of the cross rod (705).

4. The automatic parking device for pneumatic monorail crane according to claim 2, characterized in that: The movable plate (712) is rotatably connected to the bottom end of the second guide rod (715), the first support rod (708) is connected to the middle side of the mounting plate (1) by bolts, and the second support rod (709) is fixedly connected to one side of the first support rod (708).

5. The automatic parking device for pneumatic monorail crane according to claim 2, characterized in that: The fixed shaft (710) is fixedly connected to a bottom side of the support rod (708), and the fixing hole (711) is opened on a top side of the support rod (708).

6. The automatic parking device for pneumatic monorail crane according to claim 5, characterized in that: The support rod 1 (708) and the support rod 2 (709) are inserted in the middle of the movable plate (712), and the movable plate (712) forms a sliding fit with the side of the support rod 1 (708) and the side of the support rod 2 (709), and the pressure sensor (716) is fixedly connected to the bottom outer wall of the mounting plate (1) close to both sides of the support rod 1 (708).

7. The automatic parking device for pneumatic monorail crane according to claim 2, characterized in that: The fixed block (713) is fixedly connected to both sides of the movable plate (712), the spring (714) is fixedly connected to the top of the fixed block (713), and a notch is provided on one side of the movable plate (712).

8. The automatic parking device for pneumatic monorail crane according to claim 1, characterized in that: The auxiliary braking mechanism (10) comprises a clamping plate (1001), a screw rod (1002), a connecting rod (1003), a gear (1004), a rack plate (1005), a cross guide groove (1006) and a slider (1007), wherein the connecting rod (1003) is fixedly connected to the circumference of a fixed shaft (710), the screw rod (1002) is rotatably connected to the bottom end of the connecting rod (1003), the gear (1004) is threadedly connected to the end circumference of the screw rod (1002), and the top end of the rack plate (1005) is fixedly connected to the notch.

9. The automatic parking device for pneumatic monorail crane according to claim 8, characterized in that: The rack plate (1005) and the gear (1004) are meshed with each other, and the clamping plate (1001) is sleeved on the circumference of the screw rod (1002), and the slider (1007) is fixedly connected to the middle of the top of the clamping plate (1001).

10. The automatic parking device for pneumatic monorail crane according to claim 8, characterized in that: The cross guide groove (1006) is provided at the bottom of the first support rod (708) and the second support rod (709), and the sliding block (1007) forms a sliding fit with the cross guide groove (1006).

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