CN221216911U - Downhill damper of pneumatic monorail crane - Google Patents

Abstract

The utility model discloses a downhill damper of a pneumatic monorail crane, which relates to the technical field of pneumatic dampers and comprises a monorail, wherein sliding grooves are formed in two sides of the monorail, a supporting component is arranged outside the monorail, a damping component is arranged on the side surface of the supporting component, the supporting component comprises an L-shaped mounting plate, an L-shaped butt joint plate is arranged on the side surface of the L-shaped mounting plate, a limiting component is arranged on the side surface of the L-shaped butt joint plate, a butt joint groove is formed in the side surface of the L-shaped butt joint plate, and an L-shaped connecting plate is arranged at the top of the L-shaped mounting plate. According to the utility model, damping buffering of the lifting appliance in downhill is realized through the damping component, and the tensioning arm is pushed by the cylinder, so that the tensioning arm drives the connecting rod and the damping brake wheels to be clamped in the sliding grooves on two sides of the monorail, and the damping brake wheels are contacted with the inner walls of the sliding grooves, thereby realizing damping buffering of the lifting appliance in downhill and improving the stability of the lifting appliance.

Description

Downhill damper of pneumatic monorail crane

Technical Field

The utility model relates to the technical field of pneumatic dampers, in particular to a downhill damper of a pneumatic monorail crane.

Background

The damper is mainly used for conveying systems such as push rod type catenary chains, hanging rails and the like, and aims to prevent a lifting appliance from sliding in some places and colliding with a lifting appliance or a chain pushing head and the like in front, or cause turning over, shutdown and the like due to too high descending speed during descending.

The existing damper is mostly installed inside a track, when the lifting appliance passes through the damper, the damping effect on the lifting appliance is not ideal, so that the lifting appliance is easy to roll over and damage, and the installation is complex, and when the lifting appliance is damaged, the damper is inconvenient to detach and overhaul, so that the pneumatic monorail crane downhill damper is required to be provided for solving the problem.

Disclosure of utility model

The utility model mainly aims to provide a pneumatic monorail crane downhill damper which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

The downhill damper of the pneumatic monorail crane comprises a monorail, wherein sliding grooves are formed in two sides of the monorail, a supporting component is arranged outside the monorail, and a damping component is arranged on the side face of the supporting component;

The support assembly comprises an L-shaped mounting plate, wherein an L-shaped abutting plate is arranged on the side face of the L-shaped mounting plate, a limiting assembly is arranged on the side face of the L-shaped abutting plate, an abutting groove is formed in the side face of the L-shaped abutting plate, an L-shaped connecting plate is arranged at the top of the L-shaped mounting plate, a T-shaped mounting sliding rail is arranged at the bottom of the L-shaped connecting plate, and an abutting rod is arranged on the side face of the L-shaped mounting plate;

The limiting assembly comprises a limiting rod, one end of the limiting rod is provided with a pulling plate, and the side surface of the pulling plate is provided with a connecting spring;

The damping assembly comprises a connecting plate, a mounting frame is arranged at the bottom of the connecting plate, an air cylinder is arranged in the mounting frame, a tensioning arm is arranged at one end of the air cylinder, and a connecting rod and a damping brake wheel are arranged at the bottom of the tensioning arm.

Preferably, the L-shaped mounting plate is located on the side face of the monorail, the L-shaped mounting plate is arranged opposite to the sliding groove on the side face of the monorail, the top inner wall of the L-shaped mounting plate is in sliding connection with the top of the monorail, the L-shaped mounting plate and the L-shaped abutting plate are arranged opposite to each other at the top of the monorail, and the top inner wall of the L-shaped abutting plate is in sliding connection with the top of the monorail.

Preferably, the bottom of L shape connecting plate is connected at the top of L shape butt joint board, and T shape installation slide rail and L shape connecting plate fixed connection, the installation spout has been seted up at the top of L shape butt joint board, and T shape installation slide rail sliding connection is inside the installation spout at L shape butt joint board top, the one side bottom that the T shape installation slide rail was kept away from to L shape connecting plate passes through bolted connection at the top of L shape mounting panel, one side that the L shape mounting panel is close to L shape butt joint board and butt joint pole fixed connection, and the limit groove has been seted up to the one end that the L shape mounting panel was kept away from to the butt joint pole, the butt joint pole is pegged graft inside the butt joint groove that the L shape butt joint board is close to L shape mounting panel one side.

Preferably, the rotating shaft is arranged on one side, close to the sliding groove, of the L-shaped mounting plate, the sliding wheel is arranged at one end, far away from the L-shaped mounting plate, of the rotating shaft through the bearing, the sliding wheels are arranged corresponding to the rotating shaft, two sliding wheels are symmetrically distributed on the opposite sides of the L-shaped mounting plate and the L-shaped butt plate respectively, the sliding wheels are located inside the sliding groove, and the sliding wheels are in sliding connection with the sliding groove.

Preferably, the gag lever post sliding connection keeps away from one side of L shape connecting plate at L shape butt joint board, and the gag lever post runs through the inside at L shape butt joint board, the one end that L shape butt joint board was kept away from to the gag lever post and pulling board fixed connection, the connection spring housing is established on the outer wall of gag lever post, and the both ends of connection spring joint respectively in the side of pulling board and the side of L shape butt joint board, connection spring is located between pulling board and the L shape butt joint board, the one end that the pulling board was kept away from to the gag lever post is pegged graft in the spacing inslot of butt joint pole one end.

Preferably, the bottom of connecting plate passes through bolted connection at the top of L shape connecting plate, and the connecting plate is located the top intermediate position of L shape connecting plate, one side that the connecting plate kept away from L shape connecting plate passes through the bolt and is connected with the installing frame, and the installing frame is located the bottom of connecting plate, the side of installing frame is laminated mutually with the side of L shape connecting plate, there is the installation riser through bolted connection in the middle of the bottom of installing frame, and the bottom of installation riser is located single track's top.

Preferably, the side of installation riser passes through the bolt and installs the cylinder, and the cylinder has two, and the symmetrical distribution is in the both sides of installation riser respectively, the cylinder is kept away from the one end of installation riser and is articulated with the tensioning arm, the tensioning arm corresponds the setting with the cylinder, and the tensioning arm is located single track both sides, the connecting rod is installed to one side bottom that the tensioning arm is close to single track, and the damping braking wheel is installed to the one end that the tensioning arm was kept away from to the connecting rod, damping braking wheel is located the inside of sliding tray, and damping braking wheel corresponds the setting with the movable pulley.

Preferably, the side of installing the frame has the installation piece through bolted connection, and the installation piece has four, and respectively symmetric distribution is on the both sides inner wall of installing the frame, every two install the bull stick in the middle of installation piece, and the bull stick runs through the tensioning arm, bull stick and tensioning arm sliding connection, the side joint of tensioning arm has the spring, and the spring is located single track's top, the one end joint of tensioning arm is kept away from to the spring is in the side bottom of installing the riser, and the spring has two, respectively symmetric distribution is in the both sides of installing the riser.

Compared with the prior art, the utility model has the following beneficial effects:

1. the support and the installation of the damping component are realized through the support component, the support frame of the damping component is installed through the L-shaped mounting plate and the L-shaped abutting plate in a clamping manner, the limiting rod is arranged to limit the abutting rod, the stability of the connection of the L-shaped mounting plate and the L-shaped abutting plate is improved, the dismounting and the installation of the device are facilitated, and the using convenience of the device is improved;

2. Damping buffering to hoist when downhill path is realized to the damping subassembly that sets up, promotes the tensioning arm through the cylinder that sets up, makes the tensioning arm drive the connecting rod and the damping brake wheel centre gripping is inside the sliding tray of single track both sides, makes the damping brake wheel contact with the inner wall of sliding tray to realize the damping buffering to hoist when downhill path, improve the stability of hoist, prevent downhill path speed too fast, lead to hoist roll-over, bump, shorten life.

Drawings

FIG. 1 is a perspective view of the device of the present utility model from a first perspective as a whole;

FIG. 2 is a perspective view of the entire second view of the device of the present utility model;

FIG. 3 is a schematic view of the structure of the damping assembly of the present utility model;

FIG. 4 is a schematic view of the structure of the support assembly of the present utility model;

fig. 5 is a schematic structural view of the limiting assembly of the present utility model.

In the figure: 1. a single rail; 2. a sliding groove; 3. a support assembly; 4. an L-shaped mounting plate; 5. an L-shaped butt plate; 6. a rotating shaft; 7. a sliding wheel; 8. an L-shaped connecting plate; 9. a T-shaped mounting slide rail; 10. a butt joint rod; 11. a butt joint groove; 12. a limit component; 13. a limit rod; 14. pulling the plate; 15. a connecting spring; 16. a damping assembly; 17. a connecting plate; 18. a mounting frame; 19. installing a vertical plate; 20. a cylinder; 21. a tensioning arm; 22. a connecting rod; 23. damping brake wheels; 24. a mounting block; 25. a rotating rod; 26. and (3) a spring.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1-5, a pneumatic monorail crane downhill damper comprises a monorail 1, sliding grooves 2 are formed in two sides of the monorail 1, a supporting component 3 is arranged outside the monorail 1, and damping components 16 are arranged on the side surfaces of the supporting component 3;

Referring to fig. 1, 2 and 4, the supporting component 3 comprises an L-shaped mounting plate 4, an L-shaped abutting plate 5 is arranged on the side surface of the L-shaped mounting plate 4, a limit component 12 is arranged on the side surface of the L-shaped abutting plate 5, an abutting groove 11 is arranged on the side surface of the L-shaped abutting plate 5, an L-shaped connecting plate 8 is arranged at the top of the L-shaped mounting plate 4, a T-shaped mounting sliding rail 9 is arranged at the bottom of the L-shaped connecting plate 8, an abutting rod 10 is arranged on the side surface of the L-shaped mounting plate 4, the L-shaped mounting plate 4 is arranged opposite to the sliding groove 2 on the side surface of the monorail 1, the top inner wall of the L-shaped mounting plate 4 is in sliding connection with the top of the monorail 1, the L-shaped mounting plate 4 is arranged opposite to the L-shaped abutting plate 5 on the top of the monorail 1, the top inner wall of the L-shaped abutting plate 5 is in sliding connection with the top of the monorail 1, the bottom of the L-shaped connecting plate 8 is connected to the top of the L-shaped abutting plate 5, and the T-shaped mounting sliding rail 9 is fixedly connected with the L-shaped connecting plate 8, the top of the L-shaped abutting plate 5 is provided with a mounting sliding groove, the T-shaped mounting sliding rail 9 is slidingly connected in the mounting sliding groove at the top of the L-shaped abutting plate 5, the bottom of one side of the L-shaped connecting plate 8, which is far away from the T-shaped mounting sliding rail 9, is connected at the top of the L-shaped mounting plate 4 through bolts, one side of the L-shaped mounting plate 4, which is near to the L-shaped abutting plate 5, is fixedly connected with the abutting rod 10, one end of the abutting rod 10, which is far away from the L-shaped mounting plate 4, is provided with a limit groove, the abutting rod 10 is spliced in the abutting groove 11, which is near to the L-shaped mounting plate 4, one side of the L-shaped mounting plate 4, which is near to the sliding groove 2, is provided with a rotating shaft 6, one end of the rotating shaft 6, which is far away from the L-shaped mounting plate 4, is provided with a sliding wheel 7 through a bearing, and the sliding wheel 7 is correspondingly arranged with the rotating shaft 6, the two sliding wheels 7 are symmetrically distributed on the opposite sides of the L-shaped mounting plate 4 and the L-shaped abutting plate 5 respectively, the sliding wheels 7 are positioned in the sliding groove 2, and the sliding wheels 7 are in sliding connection with the sliding groove 2;

Referring to fig. 1, fig. 2, fig. 4 and fig. 5, the limiting component 12 comprises a limiting rod 13, one end of the limiting rod 13 is provided with a pulling plate 14, the side surface of the pulling plate 14 is provided with a connecting spring 15, the limiting rod 13 is slidably connected to one side of the L-shaped abutting plate 5 far away from the L-shaped connecting plate 8, the limiting rod 13 penetrates through the inside of the L-shaped abutting plate 5, one end of the limiting rod 13 far away from the L-shaped abutting plate 5 is fixedly connected with the pulling plate 14, the connecting spring 15 is sleeved on the outer wall of the limiting rod 13, two ends of the connecting spring 15 are respectively clamped between the side surface of the pulling plate 14 and the side surface of the L-shaped abutting plate 5, the connecting spring 15 is positioned between the pulling plate 14 and the L-shaped abutting plate 5, one end of the limiting rod 13 far away from the pulling plate 14 is spliced in a limiting groove at one end of the abutting plate 10, the supporting component 16 is supported and installed through the supporting component 3, the supporting frame of the damping component 16 is installed through the L-shaped mounting plate 4 and the L-shaped abutting plate 5 in a clamping way, the limiting rod 13 is arranged to limit the limiting rod 10, the limiting rod 4 and the L-shaped abutting plate 5 is increased, the stability of the abutting plate is convenient to detach and use of the abutting plate is improved;

Referring to fig. 1, 2 and 3, the damping assembly 16 includes a connection plate 17, a mounting frame 18 is disposed at the bottom of the connection plate 17, a cylinder 20 is disposed in the mounting frame 18, one end of the cylinder 20 is provided with a tensioning arm 21, a connection rod 22 and a damping brake wheel 23 are disposed at the bottom of the tensioning arm 21, the bottom of the connection plate 17 is connected to the top of the L-shaped connection plate 8 through bolts, the connection plate 17 is located at the middle position of the top of the L-shaped connection plate 8, one side of the connection plate 17 away from the L-shaped connection plate 8 is connected with the mounting frame 18 through bolts, the mounting frame 18 is located at the bottom of the connection plate 17, the side of the mounting frame 18 is attached to the side of the L-shaped connection plate 8, a mounting riser 19 is connected in the middle of the bottom of the mounting frame 18 through bolts, the bottom of the mounting riser 19 is located above the monorail 1, the side of the mounting riser 19 is provided with the cylinder 20 through bolts, and the cylinder 20 has two, the two sides of the installation vertical plate 19 are symmetrically distributed respectively, one end of the air cylinder 20, which is far away from the installation vertical plate 19, is hinged with the tensioning arm 21, the tensioning arm 21 is correspondingly arranged with the air cylinder 20, the tensioning arm 21 is positioned at two sides of the single rail 1, the bottom end of one side of the tensioning arm 21, which is close to the single rail 1, is provided with the connecting rod 22, one end of the connecting rod 22, which is far away from the tensioning arm 21, is provided with the damping brake wheel 23, the damping brake wheel 23 is positioned in the sliding groove 2, the damping brake wheel 23 is correspondingly arranged with the sliding wheel 7, the side surface of the installation frame 18 is connected with the installation blocks 24 through bolts, the four installation blocks 24 are symmetrically distributed on the inner walls of the two sides of the installation frame 18 respectively, the rotating rod 25 is arranged in the middle of each two installation blocks 24, the rotating rod 25 penetrates through the tensioning arm 21, the rotating rod 25 is in sliding connection with the tensioning arm 21, the side surface of the tensioning arm 21 is clamped with the spring 26, and the spring 26 is positioned above the single rail 1, the one end joint that tensioning arm 21 was kept away from to spring 26 is in the side bottom of installation riser 19, and spring 26 has two, and the symmetry distributes respectively in the both sides of installation riser 19, realize the damping buffering when downhill path to the hoist through the damping subassembly 16 that set up, promote tensioning arm 21 through the cylinder 20 that sets up, make tensioning arm 21 drive connecting rod 22 and damping brake wheel 23 centre gripping in the sliding tray 2 inside of single track 1 both sides, make damping brake wheel 23 contact with the inner wall of sliding tray 2, thereby realize the damping buffering when downhill path to the hoist, improve the stability of hoist, prevent that downhill path speed from being too fast, lead to the hoist to roll over, collide, reduce life.

It should be noted that, the utility model is a pneumatic monorail downhill damper, when in use, the L-shaped mounting plate 4 and the L-shaped abutting plate 5 are oppositely arranged at two sides of the monorail 1, the sliding wheels 7 and the L-shaped connecting plates 8 at the sides of the L-shaped mounting plate 4 and the L-shaped abutting plate 5 are in sliding connection with the insides of the sliding grooves 2 at the two sides of the monorail 1, the abutting rods 10 at the sides of the L-shaped mounting plate 4 are inserted into the abutting grooves 11 at the sides of the L-shaped abutting plate 5, meanwhile, the L-shaped connecting plates 8 at the top of the L-shaped mounting plate 4 correspond to the L-shaped abutting plates 5, the T-shaped mounting sliding rails 9 at the bottom of the L-shaped connecting plates 8 are in sliding connection with the inside the mounting sliding grooves at the top of the L-shaped abutting plates 5, thus realizing the further positioning of the L-shaped abutting plates 5, the T-shaped mounting sliding rails 9 are positioned in the insides of the L-shaped abutting plates 5, the L-shaped connecting plates 8 are positioned at the top of the L-shaped abutting plates 5, thus realizing the limit of the L-shaped abutting plates 5, the T-shaped mounting sliding rail 9 and the L-shaped connecting plate 8 are used for clamping the L-shaped abutting plate 5, the pulling plate 14 on the side surface of the L-shaped abutting plate 5 is pulled, the pulling plate 14 drives the limiting rod 13 to slide in the L-shaped abutting plate 5, after the abutting rod 10 is inserted into the abutting groove 11, the pulling plate 14 is loosened, the connecting spring 15 drives the limiting rod 13 to slide in the L-shaped abutting plate 5, one end of the limiting rod 13 far away from the pulling plate 14 is inserted into the limiting groove at one end of the abutting rod 10, limiting of the abutting rod 10 is realized, the L-shaped mounting plate 4 and the L-shaped abutting plate 5 are prevented from being separated when in use, the use stability is affected, the L-shaped mounting plate 4 and the L-shaped abutting plate 5 are assembled together to form a supporting frame of the damping component 16, the mounting frame 18 is connected to the bottom of the connecting plate 17 through bolts, the mounting frame 18 is connected with the L-shaped connecting plate 8, when downhill, the cylinders 20 arranged in the mounting frame 18 run, so that the two groups of cylinders 20 synchronously eject the tensioning arms 21 in opposite directions, the bottom ends of the tensioning arms 21 drive the connecting rods 22 and the damping brake wheels 23 to tension the inside of the sliding grooves 2, the damping brake wheels 23 are attached to the inner walls of the sliding grooves 2, damping buffering of the lifting appliance is achieved in the using process, stability of the lifting appliance is improved, the middle of the tensioning arms 21 is connected with the mounting blocks 24 through the rotating rods 25, and after one ends of the tensioning arms 21 are ejected out, the middle of the tensioning arms 21 is subjected to angle adjustment around the rotating rods 25, so that the clamping of the tensioning arms 21 is prevented, and the use is affected.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a pneumatic monorail crane downhill damper, includes monorail (1), its characterized in that: the two sides of the single rail (1) are provided with sliding grooves (2), a supporting component (3) is arranged outside the single rail (1), and a damping component (16) is arranged on the side face of the supporting component (3);

The support assembly (3) comprises an L-shaped mounting plate (4), an L-shaped butt joint plate (5) is arranged on the side face of the L-shaped mounting plate (4), a limit assembly (12) is arranged on the side face of the L-shaped butt joint plate (5), a butt joint groove (11) is formed in the side face of the L-shaped butt joint plate (5), an L-shaped connecting plate (8) is arranged at the top of the L-shaped mounting plate (4), a T-shaped mounting sliding rail (9) is arranged at the bottom of the L-shaped connecting plate (8), and a butt joint rod (10) is arranged on the side face of the L-shaped mounting plate (4);

The limiting assembly (12) comprises a limiting rod (13), one end of the limiting rod (13) is provided with a pulling plate (14), and the side surface of the pulling plate (14) is provided with a connecting spring (15);

The damping assembly (16) comprises a connecting plate (17), a mounting frame (18) is arranged at the bottom of the connecting plate (17), an air cylinder (20) is arranged in the mounting frame (18), a tensioning arm (21) is arranged at one end of the air cylinder (20), and a connecting rod (22) and a damping brake wheel (23) are arranged at the bottom of the tensioning arm (21).

2. A pneumatic monorail crane downhill damper as defined in claim 1, wherein: l shape mounting panel (4) are located the side of single track (1), and the relative setting of sliding tray (2) of L shape mounting panel (4) and single track (1) side, the top inner wall of L shape mounting panel (4) and the top sliding connection of single track (1), L shape mounting panel (4) and L shape butt joint board (5) set up at the top of single track (1) relatively, and the top inner wall of L shape butt joint board (5) and the top sliding connection of single track (1).

3. A pneumatic monorail crane downhill damper as defined in claim 2, wherein: the bottom of L shape connecting plate (8) is connected at the top of L shape butt joint board (5), and T shape installation slide rail (9) and L shape connecting plate (8) fixed connection, the installation spout has been seted up at the top of L shape butt joint board (5), and T shape installation slide rail (9) sliding connection is inside the installation spout at L shape butt joint board (5) top, the top at L shape mounting panel (4) is passed through bolted connection in one side bottom of L shape connecting plate (8) keeping away from T shape installation slide rail (9), one side that L shape mounting panel (4) are close to L shape butt joint board (5) and butt joint rod (10) fixed connection, and the spacing groove has been seted up to one end that L shape mounting panel (4) was kept away from to butt joint rod (10), butt joint rod (10) are pegged graft inside butt joint groove (11) that are close to L shape mounting panel (4) one side.

4. A pneumatic monorail crane downhill damper as defined in claim 3, wherein: the utility model discloses a sliding tray, including L shape mounting panel (4), sliding tray (2), sliding tray (7), pivot (6) are installed to one side that L shape mounting panel (4) is close to sliding tray (2), sliding tray (7) are installed through the bearing to one end that L shape mounting panel (4) was kept away from to pivot (6), and sliding tray (7) correspond setting with pivot (6), sliding tray (7) have two, and symmetrical distribution is in opposite one side of L shape mounting panel (4) and L shape butt joint board (5) respectively, sliding tray (7) are located the inside of sliding tray (2), and sliding tray (7) and sliding tray (2) sliding connection.

5. A pneumatic monorail crane downhill damper as defined in claim 1, wherein: the utility model discloses a limit lever (13) sliding connection keeps away from one side of L shape connecting plate (8) in L shape butt joint board (5), and gag lever post (13) run through the inside at L shape butt joint board (5), the one end and the pulling board (14) fixed connection of L shape butt joint board (5) are kept away from to gag lever post (13), connecting spring (15) cover is established on the outer wall of gag lever post (13), and the both ends of connecting spring (15) joint respectively in the side of pulling board (14) and the side of L shape butt joint board (5), connecting spring (15) are located between pulling board (14) and L shape butt joint board (5), the one end that pulling board (14) was kept away from to gag lever post (13) is pegged graft inside the spacing groove of butt joint board (10) one end.

6. A pneumatic monorail crane downhill damper as defined in claim 1, wherein: the bottom of connecting plate (17) is through bolted connection at the top of L shape connecting plate (8), and connecting plate (17) are located the top intermediate position of L shape connecting plate (8), one side that L shape connecting plate (8) were kept away from to connecting plate (17) is connected with installing frame (18) through the bolt, and installing frame (18) are located the bottom of connecting plate (17), the side of installing frame (18) is laminated mutually with the side of L shape connecting plate (8), install riser (19) through bolted connection in the middle of the bottom of installing frame (18), and the bottom of installing riser (19) is located the top of single track (1).

7. A pneumatic monorail crane downhill damper as defined in claim 6, wherein: the side of installation riser (19) is installed cylinder (20) through the bolt, and cylinder (20) have two, and the both sides at installation riser (19) are symmetrical distribution respectively, the one end that installation riser (19) was kept away from to cylinder (20) is articulated with tensioning arm (21), tensioning arm (21) correspond the setting with cylinder (20), and tensioning arm (21) are located the both sides of single track (1), connecting rod (22) are installed to one side bottom that tensioning arm (21) is close to single track (1), and damping brake wheel (23) are installed to one end that tensioning arm (21) was kept away from to connecting rod (22), damping brake wheel (23) are located the inside of sliding tray (2), and damping brake wheel (23) correspond setting with movable pulley (7).

8. A pneumatic monorail crane downhill damper as defined in claim 6, wherein: the side of installing frame (18) has installation piece (24) through bolted connection, and installation piece (24) have four, and symmetrical distribution respectively is on the both sides inner wall of installing frame (18), every two install bull stick (25) in the centre of piece (24), and bull stick (25) run through tensioning arm (21), bull stick (25) and tensioning arm (21) sliding connection, the side joint of tensioning arm (21) has spring (26), and spring (26) are located the top of single track (1), the one end joint of tensioning arm (21) is kept away from in the side bottom of installing riser (19) to spring (26), and spring (26) have two, symmetrical distribution respectively in the both sides of installing riser (19).