A speed regulator for a cable crane stay guider

Abstract

The application relates to the technical field of cable crane support cable devices, in particular to a speed regulator for a cable crane support cable device, which comprises a driving shaft, at least two traction sheave sets, the traction sheave set comprising a speed regulating wheel, the speed regulating wheel being provided with a first wheel groove, the speed regulating wheel being drivenly connected with the driving shaft through a transmission mechanism, the driving shaft being capable of driving the speed regulating wheels in the at least two traction sheave sets to rotate, the first wheel grooves on the at least two speed regulating wheels having different linear speeds, and a rope, the first wheel groove on each speed regulating wheel being matched with the rope. The speed regulator for the cable crane support cable device can adapt to the different motion speed requirements of different ropes when the rope is used as a support cable traction rope, so that the walking speed of the support cable device can be adapted.

Description

Technical Field

[0001] This invention relates to the field of cable crane support technology, and in particular to a speed regulator for cable crane support. Background Technology

[0002] Traditional cable-stayed bridge systems for long-span arch bridges employ passive support cables and lack a power traction system. The support cables are positioned in front of and behind the trolley of the cable crane, and the trolley propels each support cable. This results in significant sag of the cables, which are prone to tangling, leading to low construction efficiency and high construction risks.

[0003] In the research process of active support devices, when the sports car is moving, there are support traction ropes to pull the active support devices to move, and the sports car no longer needs to push each support device to move. However, since the movement speed of the support devices on one side of the sports car needs to be different, the speed of the different support traction ropes needs to be different. Summary of the Invention

[0004] The purpose of this invention is to address the problem in the prior art where different support cables require different speeds, and to provide a speed regulator for cable crane support cables.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A speed regulator for a cable crane support cable assembly, comprising:

[0007] Drive shaft;

[0008] At least two traction pulley sets, each traction pulley set including a speed regulating wheel, the speed regulating wheel having a first groove, the speed regulating wheel being driven to cooperate with the drive shaft via a transmission mechanism, the drive shaft being able to drive the speed regulating wheel in at least two of the traction pulley sets to rotate, and the linear velocities of the first grooves on at least two of the speed regulating wheels being different;

[0009] The rope is fitted into the first groove of each of the speed regulating wheels.

[0010] The present application describes a speed regulating machine for a cable crane support device. The drive shaft drives the speed regulating wheel to rotate through a transmission mechanism. During operation, the drive shaft drives the speed regulating wheel in at least two of the traction pulley groups to rotate, thereby achieving synchronous speed regulation of at least two speed regulating wheels. The speed regulating wheel is correspondingly arranged with the rope. A single rope passes around the speed regulating wheel, and the rotation of the speed regulating wheel drives the rope to move. When the rope is used as a support traction rope, the first groove linear speeds on the at least two speed regulating wheels are different to adapt to the different movement speed requirements of different ropes, thereby achieving the purpose of adapting to different travel speeds of the support device.

[0011] Preferably, all the speed regulating wheels have the same diameter, and at least two of the speed regulating wheels have different rotational angular velocities.

[0012] Because the rope limits the minimum diameter of the speed-regulating wheel when it is in contact with the speed-regulating wheel, the diameter of the speed-regulating wheel must be larger than its minimum diameter during design. Under this condition, when there are at least three speed-regulating wheels, if different diameters are used to achieve different groove speeds on the first groove of each speed-regulating wheel, the diameters of the other speed-regulating wheels will be gradually increased based on the smallest diameter wheel. This results in a very large diameter for the speed-regulating wheel with the highest groove speed on the first groove, leading to a very large base for mounting the speed-regulating wheels. This significantly increases the structural cost of the speed-regulating mechanism for cable crane support described in this application. Furthermore, different diameter speed-regulating wheels will cause significant differences in the service life of the ropes they are in contact with, increasing the frequency of rope repair and replacement, and thus increasing maintenance costs.

[0013] The speed regulating mechanism for cable crane support described in this application uses all speed regulating wheels with the same diameter. By utilizing the different rotational angular velocities of the different speed regulating wheels, the linear speeds of the first grooves on at least two of the speed regulating wheels are different. Furthermore, only the diameter of the speed regulating wheel needs to be greater than the minimum diameter of the speed regulating wheel. Compared to a scheme with different speed regulating wheel diameters, the scheme with the same speed regulating wheel diameter allows for a smaller base for mounting the speed regulating wheels, effectively reducing the structural cost of the speed regulating mechanism for cable crane support described in this application. Moreover, since all speed regulating wheels have the same diameter, the service life of different ropes is not significantly different, allowing different ropes to be replaced collectively at the same time, thereby greatly reducing the frequency of rope repair and replacement, and thus reducing maintenance costs.

[0014] Preferably, at least two transmission mechanisms have different transmission ratios.

[0015] Under the condition that all the speed regulating wheels have the same diameter, the purpose of achieving different groove speeds on the first wheel of at least two speed regulating wheels is to utilize the different transmission ratios of at least two transmission mechanisms.

[0016] Preferably, the transmission mechanism includes a driving sprocket and a follower sprocket. The driving sprocket drives the follower sprocket to rotate via a chain. The follower sprocket is coaxially arranged with the corresponding speed regulating wheel, and the follower sprocket rotates together with the corresponding speed regulating wheel. The driving sprocket is sleeved and connected to the drive shaft.

[0017] The driving sprockets of at least two transmission mechanisms have different diameters, or the follower sprockets of at least two transmission mechanisms have different diameters. This is to achieve the goal of having different transmission ratios for at least two transmission mechanisms while all the speed regulating wheels have the same diameter.

[0018] Preferably, the transmission mechanism includes a driving gear and a follower gear. The driving gear drives the follower gear to rotate. The follower gear is coaxially arranged with the corresponding speed regulating wheel and rotates together with the corresponding speed regulating wheel. The driving gear is sleeved and connected to the drive shaft. The diameters of the driving gears or follower gears of at least two transmission mechanisms are different.

[0019] Preferably, the traction pulley group further includes a steering pulley, the steering pulley and the speed regulating pulley are spaced apart and arranged parallel to each other, the speed regulating pulley is provided with at least two first wheel grooves, the steering pulley is provided with second wheel grooves, and the number of second wheel grooves is one less than the number of first wheel grooves.

[0020] To ensure that the rope's infeed and outfeed forces allow for effective rope movement, the rope must pass over the speed-regulating wheel at least twice. Therefore, at least two first wheel grooves are provided on the speed-regulating wheel, and a steering pulley is also provided to cooperate in ensuring that the rope passes over the speed-regulating wheel at least twice.

[0021] Preferably, there are two first wheel grooves, and the rope passes through one of the first wheel grooves, then passes through the second wheel groove, and then passes through the other first wheel groove.

[0022] Preferably, a first double-wheel structure is provided on the side of the steering pulley away from the speed regulating wheel. The first double-wheel structure includes a first roller and a second roller. The groove of the first roller is opposite to the groove of the second roller. The groove of the first roller and the groove of the second roller together form a first limiting space for radial limiting of the support cable. After the rope passes through the first limiting space, it cooperates with the first groove.

[0023] A first double-wheel structure is provided at the rope inlet or outlet position of the speed regulating wheel to ensure that the rope inlet angle or outlet angle of the rope entering or exiting the speed regulating wheel remains consistent, preventing the rope, which serves as the traction rope of the support cable, from jumping out of the first wheel groove due to changes in the rope inlet angle or outlet angle.

[0024] Preferably, the drive shaft includes at least two coaxially arranged axles, and a clutch is connected between adjacent axles. The clutch can disengage adjacent axles from each other, and at least two axles are respectively driven by the transmission mechanism.

[0025] This application describes a speed regulator for cable crane support devices. It achieves synchronous speed regulation among the various ropes by driving at least two speed regulating wheels via a drive shaft. Due to factors such as the sag of the main cable, trolley movement, and the engineering environment, the distance between the support devices on the cable crane changes. To prevent unforeseen circumstances during construction, a clutch is installed to adjust the speed of each rope. During operation, when the clutch lever is disengaged, the interlocking gears on the clutch disengage, and each speed regulating wheel rotates freely without providing speed. When the clutch is closed, the gears connecting adjacent axles on the drive shaft mesh, causing all axles to operate at a common angular velocity. The axles drive the speed regulating wheels through a transmission mechanism, ensuring that the speed of each rope meets the construction requirements.

[0026] Preferably, the clutch is a jaw clutch.

[0027] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0028] 1. The speed regulating machine for a cable crane support as described in this application, wherein the drive shaft drives the speed regulating wheel to rotate through a transmission mechanism. During operation, the drive shaft drives the speed regulating wheel in at least two of the traction pulley groups to rotate, thereby achieving synchronous speed regulation of at least two speed regulating wheels. The speed regulating wheel is correspondingly arranged with the rope. A single rope passes around the speed regulating wheel, and the rotation of the speed regulating wheel drives the rope to move. When the rope is used as a support traction rope, the first groove linear speeds on at least two of the speed regulating wheels are different to adapt to the different movement speed requirements of different ropes, thereby achieving the purpose of adapting to different travel speeds of the support. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural schematic diagram of a speed regulating machine for a cable crane support cable according to the present invention.

[0030] Figure 2 This is a top view schematic diagram of the structure of a speed regulator for a cable crane support device according to the present invention.

[0031] Figure 3 This is an appendix to the present invention. Figure 2 Schematic diagram of sectional view AA.

[0032] Figure 4 This is a schematic diagram of the speed regulating wheel of the present invention.

[0033] Figure 5 This is a schematic diagram of the steering pulley of the present invention.

[0034] Figure 6 This is a schematic diagram of the first double-wheel structure of the present invention.

[0035] Figure 7 This is a schematic diagram of the first double-wheel structure of the present invention from the left.

[0036] Figure 8 This is a schematic diagram showing the cooperation of the clutch, axle, and transmission mechanism of the present invention.

[0037] Icons: 10-Support traction rope; 11-Speed ​​regulating wheel; 12-Clutch; 13-Traction pulley block; 14-Transmission mechanism; 15-Drive shaft; 16-Follower sprocket; 17-Chain; 18-Steering pulley; 19-First wheel groove; 110-Second wheel groove; 111-First double wheel structure; 112-Wheel axle; 113-First roller; 114-Second roller; 115-First limiting space; 116-Operating handle; 117-Gear; 118-U-shaped limiter; 119-Drive sprocket. Detailed Implementation

[0038] The present invention will now be described in detail with reference to the accompanying drawings.

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] Example 1

[0041] like Figure 1-8 As shown in this embodiment, a speed regulator for a cable crane support includes:

[0042] Drive shaft 15;

[0043] At least two traction pulley sets 13, each traction pulley set 13 including a speed regulating wheel 11, the speed regulating wheel 11 having a first wheel groove 19, the speed regulating wheel 11 being driven and engaged with the drive shaft 15 via a transmission mechanism 14, the drive shaft 15 being able to drive the speed regulating wheel 11 in at least two of the traction pulley sets 13 to rotate, and the first wheel groove 19 on at least two of the speed regulating wheels 11 having different linear velocities;

[0044] The rope 10 is fitted with the first groove 19 on each of the speed regulating wheels 11.

[0045] The linear velocities of the first grooves 19 on at least two of the speed-regulating wheels 11 are different, that is, the running speeds of the ropes 10 that are coupled on at least two of the speed-regulating wheels 11 are different.

[0046] This embodiment describes a speed regulating machine for a cable crane support. The drive shaft 15 drives the speed regulating wheel 11 to rotate via a transmission mechanism 14. During operation, the drive shaft 15 drives the speed regulating wheel 11 in at least two of the traction pulley groups 13 to rotate, thereby achieving synchronous speed regulation of at least two speed regulating wheels 11. The speed regulating wheel 11 is correspondingly arranged with the rope 10. A single rope 10 passes around the speed regulating wheel 11, and the rotation of the speed regulating wheel 11 drives the rope 10 to move. When the rope 10 is used as a support traction rope, the linear speed of the first groove 19 on at least two of the speed regulating wheels 11 is different to adapt to the different movement speed requirements of different ropes 10, thereby achieving the purpose of adapting to different travel speeds of the support.

[0047] The rotational power of the drive shaft 15 can come from a dedicated drive device, such as a motor, which is connected to the drive shaft 15 via a gear transmission mechanism; or the drive shaft 15 can be rotated by a drive pulley. In actual construction, the drive traction rope is pulled out from the trolley of the cable crane and is connected to the drive pulley. When working, the trolley moves on the load-bearing cable, which drives the drive pulley to rotate, thereby driving the drive shaft 15 to rotate.

[0048] Based on the above, a further preferred embodiment is that all the speed regulating wheels 11 have the same diameter, and at least two of the speed regulating wheels 11 have different rotational angular velocities.

[0049] Because the rope 10 limits the minimum diameter of the speed regulating wheel 11 when it is engaged with the speed regulating wheel 11, the diameter of the speed regulating wheel 11 is designed to be larger than its minimum diameter. Under this condition, when there are at least three speed regulating wheels 11, if different diameters of the speed regulating wheels 11 are used to achieve different linear velocities in the first groove 19 of the different speed regulating wheels 11, the speed regulating wheel 11 with the largest linear velocity in the first groove 19 will have a very large diameter, resulting in a very large base for mounting the speed regulating wheels 11. This significantly increases the structural cost of the speed regulating machine for cable crane support described in this application. Furthermore, different diameters of the speed regulating wheels 11 will result in significant differences in the service life of the different ropes 10 they engage with, increasing the frequency of rope repair and replacement, and consequently increasing maintenance costs.

[0050] The speed regulating mechanism for cable crane support described in this application uses all speed regulating wheels 11 with the same diameter. By utilizing the different rotational angular velocities of the different speed regulating wheels 11, the linear velocities of the first groove 19 on at least two of the speed regulating wheels 11 are different. Furthermore, only the diameter of each speed regulating wheel 11 needs to be greater than its minimum diameter. Compared to a scheme where the speed regulating wheels 11 have different diameters, the scheme where the speed regulating wheels 11 have the same diameter allows for a smaller base for mounting the speed regulating wheels 11, effectively reducing the structural cost of the speed regulating mechanism for cable crane support described in this application. Moreover, since all speed regulating wheels 11 have the same diameter, the service life of different ropes 10 is not significantly different, allowing different ropes 10 to be replaced collectively at the same time, thereby greatly reducing the frequency of rope 10 repairs and replacements, and thus reducing maintenance costs.

[0051] Based on the above, a further preferred method is that at least two transmission mechanisms 14 have different transmission ratios. Under the condition that all the speed regulating wheels 11 have the same diameter, the different transmission ratios of at least two transmission mechanisms 14 are used to achieve the purpose of different linear velocities on the first grooves 19 of at least two speed regulating wheels 11.

[0052] In one specific embodiment, the transmission mechanism 14 includes a drive sprocket 119 and a follower sprocket 16. The drive sprocket 119 drives the follower sprocket 16 to rotate via a chain 17. The follower sprocket 16 is coaxially arranged with the corresponding speed regulating wheel 11, and the follower sprocket 16 and the corresponding speed regulating wheel 11 rotate together. The drive sprocket 119 is sleeved and connected to the drive shaft 15.

[0053] The driving sprockets 119 of at least two transmission mechanisms 14 have different diameters, or the follower sprockets 16 of at least two transmission mechanisms 14 have different diameters. This is to achieve the purpose of having different transmission ratios for at least two transmission mechanisms 14 while all the speed regulating wheels 11 have the same diameter.

[0054] In one specific embodiment, the transmission mechanism 14 includes a driving gear and a follower gear. The driving gear drives the follower gear to rotate. The follower gear is coaxially arranged with the corresponding speed regulating wheel 11, and the follower gear rotates together with the corresponding speed regulating wheel 11. The driving gear is sleeved and connected to the drive shaft 15. The diameters of the driving gears or follower gears of at least two transmission mechanisms 14 are different.

[0055] Based on the above, in a further preferred embodiment, the traction pulley group 13 further includes a steering pulley 18, the steering pulley 18 being spaced apart from the speed regulating wheel 11, the steering pulley 18 being parallel to the speed regulating wheel 11, the speed regulating wheel 11 being provided with at least two first wheel grooves 19, and the steering pulley 18 being provided with second wheel grooves 110, the number of second wheel grooves 110 being one less than the number of first wheel grooves 19.

[0056] To ensure that the rope 10 of the connecting support cable can move effectively due to the rope inlet and outlet forces, the rope 10 is passed around the speed regulating wheel 11 at least twice. Therefore, at least two first wheel grooves 19 are provided on the speed regulating wheel 11, and a steering pulley 18 is provided to cooperate so that the rope 10 can pass around the speed regulating wheel 11 at least twice.

[0057] In typical construction scenarios, there are two first wheel grooves 19. The rope 10 passes around one of the first wheel grooves 19, then around the second wheel groove 110, and then around the other first wheel groove 19.

[0058] Specifically, a first double-wheel structure 111 is provided on the side of the steering pulley 18 away from the speed regulating wheel 11. The first double-wheel structure 111 includes a first roller 113 and a second roller 114. The groove of the first roller 113 is opposite to the groove of the second roller 114. The groove of the first roller 113 and the groove of the second roller 114 together form a first limiting space 115 for radial limiting of the support cable. After the rope 10 passes through the first limiting space 115, it cooperates with the first groove 19.

[0059] A first double wheel structure 111 is provided at the rope inlet or rope outlet position of the speed regulating wheel 11 so that the rope inlet angle or rope outlet angle of the rope 10 entering or exiting the speed regulating wheel 11 remains consistent, preventing the rope 10, which serves as the traction rope of the support cable, from jumping out of the first wheel groove 19 due to changes in the rope inlet angle or rope outlet angle.

[0060] Based on the above, in a further preferred embodiment, the drive shaft 15 includes at least two coaxially arranged axles 112, and a clutch 12 is connected between adjacent axles 112. The clutch 12 can disengage adjacent axles 112 from each other, and at least two axles 112 are respectively driven and connected to the transmission mechanism 14.

[0061] This embodiment describes a speed regulator for cable crane support devices. It achieves synchronous speed regulation among the various ropes 10 by driving at least two speed regulating wheels 11 via a drive shaft 15. Due to the influence of the cable crane's main cable sag, trolley movement, and the engineering environment, the distance between the support devices on the cable crane changes. To prevent special situations during construction, a clutch 12 is provided to adjust the speed of each rope 10. The clutch 12 is preferably a jaw clutch or an electromagnetic clutch. Taking a jaw clutch as an example: during operation, when the operating handle 116 of the clutch 12 is released, the interlocking gears 117 on the clutch 12 disengage, and each speed regulating wheel 11 does not provide speed, allowing it to rotate freely. When the clutch 12 is closed, the gears 117 connecting adjacent wheel axles 112 on the drive shaft 15 interlock, causing each wheel axle 112 to operate at a common angular velocity. The wheel axles 112 drive the speed regulating wheels 11 to rotate through a transmission mechanism 14, ensuring that the speed of each rope 10 meets the construction requirements.

[0062] Specifically, during normal use, the clutch 12 is engaged, and all axles 112 rotate coaxially, thereby driving each traction pulley group 13 to rotate. The traction pulley group 13 drives the corresponding first support cable traction rope 102 to move, and the first support cable traction rope 102 drives the mid-span support cable 4 to move, thereby precisely controlling the position of the mid-span support cable 4. When there is a certain deviation between the actual position of some mid-span support cable 4 and the predetermined design position, the axle 112 corresponding to the mid-span support cable 4 with the deviation is disengaged from the adjacent axle 112 through the clutch 12. Then, the axle 112 corresponding to the mid-span support cable 4 with the deviation is driven to rotate independently by manual or auxiliary power equipment to adjust the mid-span support cable 4 with the deviation to the predetermined design position. After that, the clutch 12 is engaged, so that all axles 112 rotate coaxially, and then normal operation continues. The position of some mid-span support cable 4 is adjusted independently by using the clutch 12, so that the deviation of the position of the mid-span support cable 4 can be corrected in time to ensure a better support effect.

[0063] Meanwhile, when the speed regulating device 1 of the support cable malfunctions, each mid-span support cable 4 cannot travel at the prescribed speed, causing adjacent mid-span support cables 4 to collide, the clutch 12 at the corresponding position can be opened so that the corresponding wheel axle 112 does not provide traction speed to the traction pulley block 13, so as to avoid the situation of continuous squeezing and collision of adjacent mid-span support cables 4, thereby ensuring the working safety of the mid-span support cable 4.

[0064] The speed regulator for cable crane support cables described in this embodiment has a transmission mechanism 14 that can be a chain and sprocket transmission mechanism, a gear transmission mechanism, or a synchronous belt transmission mechanism. The position of each support cable is efficiently adjusted through the speed regulation control of the support cable speed regulating traction machine.

[0065] Traditional cable stays lack a powered traction system, relying on a trolley for movement. This lack of a powered traction system results in poor flexibility during operation, and the connecting ropes of the cable stays exhibit significant deflection during construction, making them prone to tangling and posing a high construction risk. Therefore, a speed-regulating traction machine for cable stays was developed.

[0066] Rope 10 can specifically be a support cable traction cable.

[0067] This embodiment describes a speed regulator for cable crane support devices. It achieves synchronous speed regulation among the various ropes 10 by rationally configuring the drive shaft 15 to drive all speed regulating wheels 11. Due to the influence of the cable crane's main cable sag, trolley movement, and engineering environment, the distance between the support devices on the cable crane changes. To prevent special situations from occurring during construction, a clutch 12 is provided to adjust the speed of each rope 10. During operation, when the operating handle 116 of the clutch 12 is released, the interlocking gears 117 on the clutch 12 disengage, and each speed regulating wheel 11 does not provide speed, allowing it to rotate freely. When the clutch 12 is closed, the gears 117 connecting adjacent wheel axles 112 on the drive shaft 15 interlock, causing each wheel axle 112 to operate at a common angular velocity. The drive sprocket 119 on the axle 112 transmits kinetic energy to the follower sprocket 16 via the chain 17. The follower sprocket 16 then drives the speed regulating wheel 11 to rotate. Based on the principle that the angular velocity of the same drive shaft 15 is the same and the linear velocity of the meshing gears 117 is the same, as well as the transmission ratio requirements of the transmission mechanism 14, the diameters of each drive sprocket 119 and follower sprocket 16 are set to ensure that the speed of each rope 10 meets the construction requirements.

[0068] To ensure that the rope 10 connected to the support cable can move effectively due to the force of its input and output, the rope 10 is wrapped around the speed regulating wheel 11 twice. Therefore, the speed regulating wheel 11 near the clutch 12 is provided with a double groove, that is, two first grooves 19 are provided. The two grooves are preferably provided on one speed regulating wheel 11. The two first grooves 19 use the same positioning reference, which results in higher machining accuracy.

[0069] To prevent the ropes 10 from deviating and running out of the first pulley groove 19 or the second pulley groove 110 during construction, a U-shaped limiter 118 is installed above or on one side of the first pulley groove 19 or the second pulley groove 110 to prevent the rope 10, which serves as the traction rope of the support cable, from jumping out of the first pulley groove 19. In addition, a first double pulley structure 111 is installed at both the rope entry and exit positions to ensure that the rope 10 enters or exits the speed regulating wheel 11 at a consistent angle, preventing the rope 10, which serves as the traction rope of the support cable, from jumping out of the first pulley groove 19 due to changes in the rope entry or exit angle. Thus, the U-shaped limiter 118 and the first double pulley structure 111 work together to prevent the rope 10, which serves as the traction rope of the support cable, from jumping out of the first pulley groove 19.

[0070] The speed regulating machine for cable crane support described in this application uses a speed regulating wheel 11 to drive the speed regulating wheel 11 to provide power traction to the support cable traction cable, which can realize the orderly and efficient operation of the support cable, greatly reduce the sag of each cable during construction, avoid the problem of mutual entanglement between cables, and improve construction safety and efficiency.

[0071] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A speed regulator for a cable crane support cable, characterized in that, include: Drive shaft (15); at least two traction pulley sets (13), each traction pulley set (13) including a speed regulating wheel (11), the speed regulating wheel (11) having a first groove (19), the speed regulating wheel (11) being driven and engaged with the drive shaft (15) via a transmission mechanism (14), the drive shaft (15) being able to drive the speed regulating wheel (11) in at least two of the traction pulley sets (13) to rotate, and the linear velocities of the first groove (19) on at least two of the speed regulating wheels (11) being different; rope (10), the rope (10) being engaged with the first groove (19) on each of the speed regulating wheels (11); all the speed regulating wheels (11) having the same diameter, and at least two of the speed regulating wheels (11) having different rotational angular velocities; at least two transmission mechanisms (14) having different transmission ratios; in: The transmission mechanism (14) includes a drive sprocket (119) and a follower sprocket (16). The drive sprocket (119) drives the follower sprocket (16) to rotate via a chain (17). The follower sprocket (16) is coaxially arranged with the corresponding speed regulating wheel (11), and the follower sprocket (16) rotates together with the corresponding speed regulating wheel (11). The drive sprocket (119) is sleeved and connected to the drive shaft (15). The diameters of the drive sprockets (119) of at least two transmission mechanisms (14) are different, or the diameters of the follower sprockets (16) of at least two transmission mechanisms (14) are different. or The transmission mechanism (14) includes a drive gear and a follower gear. The drive gear drives the follower gear to rotate. The follower gear is coaxially arranged with the corresponding speed regulating wheel (11) and rotates together with the corresponding speed regulating wheel (11). The drive gear is sleeved and connected to the drive shaft (15). The diameters of the drive gears or follower gears of at least two transmission mechanisms (14) are different.

2. A speed regulator for a cable crane support as described in claim 1, characterized in that, The traction pulley group (13) also includes a steering pulley (18), which is spaced apart from the speed regulating wheel (11) and is arranged parallel to the speed regulating wheel (11). The speed regulating wheel (11) is provided with at least two first wheel grooves (19), and the steering pulley (18) is provided with a second wheel groove (110). The number of second wheel grooves (110) is one less than the number of first wheel grooves (19).

3. A speed regulator for a cable crane support as described in claim 2, characterized in that, There are two first wheel grooves (19). The rope (10) goes around one of the first wheel grooves (19), then around the second wheel groove (110), and then around the other first wheel groove (19).

4. A speed regulator for a cable crane support as described in claim 3, characterized in that, The steering pulley (18) is provided with a first double wheel structure (111) on the side away from the speed regulating wheel (11). The first double wheel structure (111) includes a first roller (113) and a second roller (114). The groove of the first roller (113) is opposite to the groove of the second roller (114). The groove of the first roller (113) and the groove of the second roller (114) together form a first limiting space (115) for radial limiting of the support cable. After the rope (10) passes through the first limiting space (115), it cooperates with the first groove (19).

5. A speed regulating device for a cable crane support as described in any one of claims 1-4, characterized in that, The drive shaft (15) includes at least two coaxially arranged axles (112), and a clutch (12) is connected between adjacent axles (112). The clutch (12) can disengage adjacent axles (112) from each other, and at least two axles (112) are respectively driven by the transmission mechanism (14).

6. A speed regulator for a cable crane support as described in claim 5, characterized in that, The clutch (12) is a toothed clutch.

Images