Adjustable centrifugal speed limiter of monorail crane

Abstract

The invention relates to the technical field of monorail cranes, in particular to an adjustable centrifugal speed limiter of a monorail crane. The speed measuring mechanism is fixedly mounted on the mounting plate; the speed measuring mechanism is used for detecting the moving speed of the monorail crane; the control mechanism is fixedly mounted on the mounting plate, and the control mechanism is used for limiting the speed of the monorail crane; the centrifugal mechanism is connected with the speed measuring mechanism in a sliding mode, the centrifugal mechanism is connected with the control mechanism in a separable mode, and the centrifugal mechanism is used for driving the control mechanism; and the cleaning mechanism is fixedly connected with the speed measuring mechanism. The cleaning device has the effects of cleaning the running track of the centrifugal speed governor of the monorail crane and prolonging the service life of the monorail crane.

Description

Technical Field

[0001] The present application relates to the technical field of monorail cranes, and in particular to an adjustable centrifugal speed limiter for a monorail crane. Background Art

[0002] As an auxiliary transportation equipment running on the suspended monorail system, the monorail crane is widely used because of its strong maneuverability, high speed and large load-bearing capacity. When the monorail crane is running on the monorail, its running speed needs to be strictly controlled to prevent derailment due to excessive speed. Existing monorail cranes mainly use centrifugal speed limiters on the carrying trolley.

[0003] When the centrifugal speed limiter of a monorail crane is used outdoors, sand and silt are likely to accumulate on the track. Long-term sand and silt accumulation will affect the operation of the monorail crane, increase the wear and tear of the monorail crane during operation, and reduce the service life of the monorail crane.

[0004] In summary, it is currently impossible to clean the track on which the monorail crane centrifugal speed limiter travels, which affects the service life of the monorail crane. Summary of the invention

[0005] In order to clean the track on which the centrifugal speed limiter of the monorail crane travels and extend the service life of the monorail crane, the present application provides an adjustable centrifugal speed limiter for the monorail crane.

[0006] The present application provides an adjustable centrifugal speed limiter for a monorail crane, which adopts the following technical solution: An adjustable centrifugal speed limiter for a monorail crane, comprising: Mounting plate; A speed measuring mechanism, the speed measuring mechanism is fixedly mounted on the mounting plate; the speed measuring mechanism is used to detect the moving speed of the monorail crane; A control mechanism, the control mechanism is fixedly mounted on the mounting plate, and the control mechanism is used to limit the speed of the monorail crane; A centrifugal mechanism, wherein the centrifugal mechanism is slidably connected to the speed measuring mechanism, the centrifugal mechanism is detachably connected to the control mechanism, and the centrifugal mechanism is used to drive the control mechanism; A cleaning mechanism, the cleaning mechanism is fixedly connected to the speed measuring mechanism, and the cleaning mechanism comprises: A mounting seat, the mounting seat is fixedly connected to the speed measuring mechanism, and the mounting seat is slidably mounted on a track; a first sliding plate, the first sliding plate being slidably mounted on the mounting seat; Two brush wheels, the two brush wheels are rotatably mounted on two ends of the first sliding plate respectively; Two scrapers, one end of each of the scrapers is fixedly mounted on one end of the first sliding plate close to the track, and the scraper forms an angle less than 90° with the first sliding plate; a first spring, one end of which is fixedly mounted on the mounting seat, and the other end of which is fixedly connected to the first sliding plate; A separation component is connected to the speed measuring mechanism, and is used to separate the scraper and the brush wheel from the track.

[0007] By adopting the above technical solution, the brush wheel and the scraper installed on the first sliding plate abut against the track under the elastic force of the first spring, so as to clean the track and further extend the service life of the monorail crane.

[0008] Optionally, the separation component includes: A rotating plate, which is arranged on the speed measuring mechanism and is a hollow circular plate; a first gear, the first gear being coaxially rotatably mounted on the rotating plate; A plurality of first centrifugal blocks, wherein the plurality of first centrifugal blocks are slidably mounted inside the rotating plate, the sliding directions of the plurality of first centrifugal blocks are all along the radial direction of the rotating plate, and the first centrifugal blocks can abut against the first gear; A plurality of second springs, one end of each of the second springs corresponds to and is fixedly connected to the first centrifugal block, and the other end of each of the second springs is fixedly connected to the rotating plate; a second gear, the second gear meshing with the first gear, the second gear being rotatably mounted on the mounting seat; A rack is meshed with the second gear, the rack is fixedly connected to the first sliding plate, and the length direction of the rack is the same as the sliding direction of the first sliding plate.

[0009] By adopting the above technical solution, the centrifugal force generated by the rotation of the speed measuring mechanism is used to drive the first centrifugal block, and the first gear is driven to rotate by the first centrifugal block abutting against the first gear. After the power is transmitted by the second gear and the rack, the brush wheel and the scraper are separated from the track, avoiding the situation where the brush wheel and the scraper are severely worn when the monorail crane moves at too high a speed, which is beneficial to extending the service life of the scraper and the brush wheel.

[0010] Optionally, the speed measuring mechanism includes: A shaft sleeve, the shaft sleeve is fixedly mounted on the mounting plate, the shaft sleeve is fixedly connected to the mounting seat, and the shaft sleeve is rotatably connected to the rotating plate; A rotating shaft, the rotating shaft is coaxially rotatably mounted in the shaft sleeve, and the rotating shaft is fixedly connected to the rotating plate; A speed measuring wheel is coaxially fixedly mounted on the rotating shaft.

[0011] By adopting the above technical solution, the travel speed of the monorail crane is detected by using a speed measuring wheel, and the travel speed of the monorail crane is transmitted to the centrifugal mechanism through the rotating shaft.

[0012] Optionally, the centrifugal mechanism comprises: Two second centrifugal blocks, both of which are slidably mounted on the rotating shaft, and the sliding directions of the second centrifugal blocks are along the radial direction of the rotating shaft; A mounting groove, the mounting groove being provided on an end opposite to the second centrifugal block; Two mounting studs, the two mounting studs are respectively threadedly connected to the second centrifugal block, and one end of the mounting stud is located in the mounting groove; Two hanging spring pins, the two hanging spring pins are respectively fixedly connected to one end of the mounting stud located in the mounting groove; Two third springs, both ends of the two third springs are respectively fixedly mounted on the two ends of the hanging spring pin shaft, and both the third springs are connected between the two second centrifugal blocks.

[0013] By adopting the above technical solution, the preload force of the third spring connected between the two second centrifugal blocks can be adjusted by rotating the installation stud, thereby achieving the adjustment of the factory safety value, optimizing the debugging process, and shortening the debugging time.

[0014] Optionally, the control mechanism includes: A cam, wherein the cam is rotatably connected to the mounting plate, the cam is sleeved on the second centrifugal block, and a gap is left between the inner side wall of the cam and the side wall of the second centrifugal block; A connecting rod, one end of which is capable of abutting against the convex end of the cam; A mechanical reversing valve is fixedly mounted on the mounting plate, one end of the connecting rod away from the cam is fixedly connected to the control end of the mechanical reversing valve, and the output end of the mechanical reversing valve is connected to the braking system of the monorail crane.

[0015] By adopting the above technical solution, the cam is rotated, and the cam protrusion end is used to drive the connecting rod to move, thereby manipulating the control end of the mechanical reversing valve, so that the output of the mechanical reversing valve is changed, and then fed back to the braking system of the monorail crane, thereby reducing the travel speed of the monorail crane and achieving the purpose of speed limiting.

[0016] Optionally, the mounting plate is slidably connected with an adjustment mechanism, and the adjustment mechanism includes: A sliding plate, the sliding plate being slidably connected to the mounting plate; A through slot, the through slot being formed on the sliding plate and the shaft sleeve passing through the through slot; A fourth spring, one end of the fourth spring is fixedly mounted on the sliding plate, and the other end of the fourth spring is fixedly mounted on the mounting plate.

[0017] By adopting the above technical solution, the deformation of the fourth spring is used to absorb the impact on the mounting plate and the mechanical components fixedly mounted on the mounting plate, thereby improving the safety of the adjustable centrifugal speed limiter of the monorail crane.

[0018] Optionally, an end cap is rotatably mounted on one end of the cam away from the mounting plate.

[0019] By adopting the above technical solution, dust accumulation in the gap between the second centrifugal block and the cam is avoided to affect the separation of the second centrifugal block and the cam, thereby improving the stability of the adjustable centrifugal speed limiter of a monorail crane.

[0020] Optionally, a debugging hole is opened on the side wall of the cam, and the debugging hole can be coaxial with the mounting stud.

[0021] By adopting the above technical solution, the preload of the second spring can be adjusted without disassembling mechanical components, thereby optimizing the adjustment process, shortening the time required for adjustment, and improving the convenience of the adjustable centrifugal speed limiter of the monorail crane.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: The brush wheel and the scraper installed on the first sliding plate can abut against the track under the elastic force of the first spring to clean the track; The first centrifugal block is driven by centrifugal force, and the first centrifugal block abuts against the first gear to drive the first gear to rotate. After the power is transmitted by the second gear and the rack, the brush wheel and the scraper are separated from the track, so as to avoid the situation that the brush wheel and the scraper are seriously worn when the monorail crane moves at too high a speed, which is conducive to extending the service life of the scraper and the brush wheel; The preload of the second spring can be adjusted without disassembling mechanical components, which optimizes the adjustment process, shortens the time required for adjustment, and improves the convenience of the adjustable centrifugal speed limiter of the monorail crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 is a structural cross-sectional view of an embodiment of the present application; Figure 3 is a structural cross-sectional view of the centrifugal mechanism of an embodiment of the present application; Figure 4 This is an embodiment of the present application Figure 3A magnified view of point A; Figure 5 It is a schematic diagram of the structure of the adjustment mechanism of the embodiment of the present application.

[0024] Description of reference numerals: 1. Mounting plate; 2. Cleaning mechanism; 21. Mounting seat; 22. First sliding plate; 23. Brush wheel; 24. Scraper; 25. First spring; 261. Rotating plate; 262. First gear; 263. First centrifugal block; 264. Second spring; 265. Second gear; 266. Rack; 3. Speed ​​measuring mechanism; 31. Bushing; 32. Rotating shaft; 33. Speed ​​measuring wheel; 41. Second centrifugal block; 42. Mounting groove, 43. Mounting stud; 44. Spring pin; 45. Third spring; 5. Control mechanism; 51. Cam; 52. Connecting rod; 53. Mechanical reversing valve; 61. Sliding plate; 62. Through groove; 63. Fourth spring; 7. End cover; 8. Debugging hole. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-5 This application is described in further detail.

[0026] The embodiment of the present application discloses an adjustable centrifugal speed limiter for a monorail crane.

[0027] Reference Figures 1 to 3 The adjustable centrifugal speed limiter of the monorail crane includes a mounting plate 1, which is fixedly connected to the monorail crane; a speed measuring mechanism 3 is fixedly installed on the mounting plate 1, and the speed measuring mechanism 3 is used to detect the speed of the monorail crane; a control mechanism 5 is fixedly installed on the mounting plate 1, and the control mechanism 5 is used to limit the speed of the monorail crane; the speed measuring mechanism 3 is slidably connected to a centrifugal mechanism, and the centrifugal mechanism is detachably connected to the control mechanism 5, and the centrifugal mechanism is used to drive the control mechanism 5; the speed measuring mechanism 3 is fixedly connected to a cleaning mechanism 2.

[0028] Reference Figure 2 and Figure 3 The cleaning mechanism 2 includes a mounting seat 21, which is slidably mounted on the track and fixedly connected to the speed measuring mechanism 3; a first sliding plate 22 is slidably mounted on the mounting seat 21, and the sliding direction of the first sliding plate 22 is along the height direction of the mounting seat 21; brush wheels 23 are rotatably mounted on both ends of the first sliding plate 22, and two scrapers 24 are fixedly mounted on one end of the first sliding plate 22 close to the track, and the two scrapers 24 form an angle less than 90° with the sliding plate 61, and the two scrapers 24 are located between the two brush wheels 23; a first spring 25 is fixedly mounted on the sliding plate 61, and the other end of the first spring 25 is fixedly connected to the first sliding plate 22; and also includes a separation component, which is fixedly connected to the speed measuring mechanism 3, and the separation component is used to separate the scraper 24 and the brush wheel 23 from the track.

[0029] When in use, the speed measuring mechanism 3 detects the moving speed of the monorail crane. When the moving speed of the monorail crane exceeds the set safety value, the centrifugal mechanism is connected to the control mechanism 5. Under the action of the control mechanism 5, the speed of the monorail crane can be reduced, thereby achieving the purpose of speed limit. The monorail crane travels on the track, and the mounting seat 21 also slides on the track. The brush wheel 23 and the scraper 24 installed on the first sliding plate 22 abut against the track under the elastic force of the first spring 25 to clean the track, thereby further extending the service life of the monorail crane.

[0030] Reference Figure 2 , Figure 3 and Figure 4 The separation component includes a rotating plate 261, which is arranged on the speed measuring mechanism 3 and is a hollow circular plate; a plurality of first centrifugal blocks 263 are slidably installed in the rotating plate 261, and the sliding directions of the plurality of first centrifugal blocks 263 are all along the radial direction of the rotating plate 261; a second spring 264 is fixedly installed on the plurality of first centrifugal blocks 263, and one end of the second spring 264 away from the first centrifugal block 263 is fixedly connected to the rotating plate 261; a first gear 262 is rotatably installed on the side wall of the rotating plate 261, and the first centrifugal block 263 can abut against the inner ring of the first gear 262; the first gear 262 is meshed with a second gear 265, and the second gear 265 is rotatably installed on the side wall of the mounting seat 21, and the second gear 265 is meshed with a rack 266, and the rack 266 is fixedly connected to the first sliding plate 22, and the length direction of the rack 266 is in the same direction as the sliding direction of the first sliding plate 22.

[0031] When the moving speed of the monorail crane exceeds the set safety value, the first centrifugal block 263 is thrown to the position abutting against the first gear 262 under the action of centrifugal force and drives the first gear 262 to rotate, and the first gear 262 rotates to drive the second gear 265 to rotate, and the second gear 265 rotates to drive the rack 266 to move away from the track, and the first sliding plate 22 fixedly connected to the rack 266 also moves accordingly, so that the brush wheel 23 and the scraper 24 are separated from the track, avoiding the situation where the brush wheel 23 and the scraper 24 are severely worn when the monorail crane moves at an excessively high speed, which is beneficial to extending the service life of the scraper 24 and the brush wheel 23.

[0032] Reference Figure 3 The speed measuring mechanism 3 includes a sleeve 31, which is fixedly mounted on the mounting plate 1. A rotating shaft 32 is coaxially mounted in the sleeve 31. The rotating plate 261 is rotationally connected to the sleeve 31. The rotating plate 261 is fixedly connected to the rotating shaft 32. A speed measuring wheel 33 is fixedly mounted on the rotating shaft 32. The linear speed of the speed measuring wheel 33 is consistent with the traveling speed of the monorail crane.

[0033] The travel speed of the monorail crane is detected by the speed measuring wheel 33, and the travel speed of the monorail crane is transmitted to the centrifugal mechanism through the rotating shaft 32.

[0034] Reference Figure 3 The centrifugal mechanism includes two second centrifugal blocks 41, which are both slidably mounted on the rotating shaft 32, and the sliding direction of the second centrifugal blocks 41 is along the radial direction of the rotating shaft 32; a mounting groove 42 is provided on one end of the two second centrifugal blocks 41 close to each other, and a mounting stud 43 is provided in the mounting groove 42, and the mounting stud 43 is threadedly connected to the second centrifugal block 41, and a hanging spring pin shaft 44 is fixedly mounted on one end of the mounting stud 43 located in the mounting groove 42, and one end of the third spring 45 is fixedly mounted on both ends of the hanging spring pin shaft 44, respectively, and the two third springs 45 are fixedly connected between the two second centrifugal blocks 41.

[0035] When the speed measuring wheel 33 detects that the speed of the monorail crane exceeds the preset safety speed, the second centrifugal block 41 slidably mounted on the rotating shaft 32 is thrown away from the rotating shaft 32. At this time, the second centrifugal block 41 is connected to the control mechanism 5 under the action of centrifugal force and friction. At the same time, the preload force of the spring connected between the two second centrifugal blocks 41 can be adjusted by rotating the mounting stud 43, so as to adjust the factory safety value, optimize the debugging process, and shorten the debugging time.

[0036] Reference Figure 1 The control mechanism 5 includes a cam 51, which is rotatably mounted on the mounting plate 1. The cam 51 is sleeved on the second centrifugal block 41, and a gap is left between the inner wall of the cam 51 and the side wall of the second centrifugal block 41; it also includes a mechanical reversing valve 53, which is fixedly mounted on the mounting plate 1. The output end of the mechanical reversing valve 53 is connected to the braking system of the monorail crane, and the control end of the mechanical reversing valve 53 is fixedly connected to one end of a connecting rod 52, and the other end of the connecting rod 52 can abut against the raised end of the cam 51.

[0037] When the second centrifugal block 41 is thrown away from the rotating shaft 32, the outer wall of the second centrifugal block 41 abuts against the inner wall of the cam 51, and can drive the cam 51 to rotate. When the raised end of the cam 51 rotates to abut against the connecting rod 52, the cam 51 drives the connecting rod 52 to move. The movement of the connecting rod 52 can control the control end of the mechanical reversing valve 53, so that the output of the mechanical reversing valve 53 is changed, and then fed back to the braking system of the monorail crane, reducing the travel speed of the monorail crane, thereby achieving the purpose of speed limit.

[0038] Reference Figure 1 — Figure 5The mounting plate 1 is slidably connected with an adjustment mechanism, which includes a sliding plate 61, which is slidably connected to the mounting plate 1; a through slot 62 is provided on the sliding plate 61, and the shaft sleeve 31 passes through the through slot 62; one end of a fourth spring 63 is fixedly mounted on the sliding plate 61, and the other end of the fourth spring 63 is fixedly connected to the mounting plate 1.

[0039] When the track surface is uneven, the sliding plate 61 and the mounting plate 1 slide relative to each other. At the same time, the fourth spring 63 fixedly installed between the sliding plate 61 and the mounting plate 1 is deformed to absorb the impact on the mounting plate 1 and the mechanical components fixedly installed on the mounting plate 1, thereby improving the safety of the adjustable centrifugal speed limiter of the monorail crane.

[0040] Reference Figure 1 An end cover is rotatably mounted on one end of the cam away from the mounting plate.

[0041] The end cover 7 can prevent dust from accumulating in the gap between the second centrifugal block 41 and the cam 51, which would affect the separation of the second centrifugal block 41 and the cam 51, thereby improving the stability of the adjustable centrifugal speed limiter of the monorail crane and helping to extend the service life of the monorail crane.

[0042] Reference Figure 1 A debugging hole 8 is provided on the side wall of the cam 51 , and the debugging hole 8 can be coaxial with the mounting stud 43 .

[0043] The preload of the second spring 264 can be adjusted without disassembling mechanical components, which optimizes the adjustment process, shortens the time required for adjustment, and improves the convenience of the adjustable centrifugal speed limiter of the monorail crane.

[0044] The implementation principle of the adjustable centrifugal speed limiter of a monorail crane in the embodiment of the present application is as follows: first, the speed measuring wheel 33 and the mounting seat 21 are set on the track. When the speed measuring wheel 33 travels on the track, it will drive the mounting seat 21 fixedly mounted on the shaft sleeve 31 to move accordingly. At the same time, the brush wheel 23 and the scraper 24 mounted on the first sliding plate 22 abut against the track under the elastic force of the first spring 25 to clean the track. When the moving speed of the monorail crane exceeds the set safety value, the second centrifugal block 41 slidably mounted on the rotating shaft 32 is thrown away from the rotating shaft 32, and the outer side wall of the second centrifugal block 41 abuts against the inner side wall of the cam 51, and can drive the cam 51 to rotate. When the raised end of the cam 51 rotates to abut against the connecting rod 52, the cam 51 drives the connecting rod 52 to move. The movement of the connecting rod 52 can control the control end of the mechanical reversing valve 53, so that the output of the mechanical reversing valve 53 is changed, and then fed back to the braking system of the monorail crane, the travel speed of the monorail crane is reduced, and the purpose of speed limit is achieved. At the same time, under the action of centrifugal force, the first centrifugal block 263 is thrown to the position abutting against the first gear 262 and drives the first gear 262 to rotate. The first gear 262 rotates to drive the second gear 265 to rotate. The second gear 265 rotates to drive the rack 266 to move away from the track. The first sliding plate 22 fixedly connected to the rack 266 by the first connecting rod 52 also moves accordingly, so that the brush wheel 23 and the scraper 24 are separated from the track. The track is cleaned under the premise of limiting the speed of the monorail crane, which is beneficial to extending the service life of the monorail crane.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable centrifugal speed governor for a monorail crane, characterized in that: include: Mounting plate (1); A speed measuring mechanism (3), the speed measuring mechanism (3) being fixedly mounted on the mounting plate (1); the speed measuring mechanism (3) being used to detect the moving speed of the monorail crane; A control mechanism (5), the control mechanism (5) being fixedly mounted on the mounting plate (1), and the control mechanism (5) being used to limit the speed of the monorail crane; a centrifugal mechanism, the centrifugal mechanism being slidably connected to the speed measuring mechanism (3), the centrifugal mechanism being detachably connected to the control mechanism (5), and the centrifugal mechanism being used to drive the control mechanism (5); A cleaning mechanism (2), wherein the cleaning mechanism (2) is fixedly connected to the speed measuring mechanism (3), and the cleaning mechanism (2) comprises: A mounting seat (21), the mounting seat (21) being fixedly connected to the speed measuring mechanism (3), and the mounting seat (21) being slidably mounted on a track; A first sliding plate (22), the first sliding plate (22) being slidably mounted on the mounting seat (21); Two brush wheels (23), the two brush wheels (23) being rotatably mounted on two ends of the first sliding plate (22) respectively; Two scrapers (24), one end of each of the scrapers (24) being fixedly mounted on an end of the first sliding plate (22) close to the track, and the scrapers (24) and the first sliding plate (22) forming an angle less than 90°; a first spring (25), one end of the first spring (25) being fixedly mounted on the mounting seat (21), and the other end of the first spring (25) being fixedly connected to the first sliding plate (22); A separation component, the separation component is connected to the speed measuring mechanism (3), and the separation component is used to separate the scraper (24) and the brush wheel (23) from the track.

2. The adjustable centrifugal speed limiter for monorail crane according to claim 1 is characterized in that: The separation component comprises: A rotating plate (261), the rotating plate (261) being arranged on the speed measuring mechanism (3), the rotating plate (261) being a hollow circular plate; a first gear (262), the first gear (262) being coaxially sleeved on the rotating plate (261), the first gear (262) being rotationally connected to the speed measuring mechanism (3); a plurality of first centrifugal blocks (263), wherein the plurality of first centrifugal blocks (263) are slidably mounted inside the rotating plate (261), the sliding directions of the plurality of first centrifugal blocks (263) are all along the radial direction of the rotating plate (261), and the first centrifugal blocks (263) are capable of abutting against the first gear (262); a plurality of second springs (264), one end of each of the plurality of second springs (264) corresponding one-to-one to and fixedly connected to the first centrifugal block (263), and the other end of each of the second springs (264) fixedly connected to the rotating plate (261); a second gear (265), the second gear (265) being meshed with the first gear (262), and the second gear (265) being rotatably mounted on the mounting seat (21); A rack (266), the rack (266) meshing with the second gear (265), the rack (266) being fixedly connected to the first sliding plate (22), and the length direction of the rack (266) being the same as the sliding direction of the first sliding plate (22).

3. The adjustable centrifugal speed limiter for monorail crane according to claim 2 is characterized in that: The speed measuring mechanism (3) comprises: a shaft sleeve (31), the shaft sleeve (31) being fixedly mounted on the mounting plate (1), the shaft sleeve (31) being fixedly connected to the mounting seat (21), and the shaft sleeve (31) being rotatably connected to the rotating plate (261); a rotating shaft (32), the rotating shaft (32) being coaxially rotatably mounted in the shaft sleeve (31), the rotating shaft (32) being fixedly connected to the rotating plate (261); A speed measuring wheel (33), wherein the speed measuring wheel (33) is coaxially fixedly mounted on the rotating shaft (32).

4. The adjustable centrifugal speed limiter for monorail crane according to claim 3 is characterized in that: The centrifugal mechanism comprises: Two second centrifugal blocks (41), both of which are slidably mounted on the rotating shaft (32), and the sliding directions of the second centrifugal blocks (41) are along the radial direction of the rotating shaft (32); a mounting groove (42), the mounting groove (42) being formed on an end opposite to the second centrifugal block (41); two mounting studs (43), the two mounting studs (43) being respectively threadedly connected to the second centrifugal block (41), and one end of the mounting stud (43) being located in the mounting groove (42); Two hanging spring pins (44), the two hanging spring pins (44) being fixedly connected to one end of the mounting stud (43) located in the mounting groove (42) respectively; Two third springs (45), both ends of the two third springs (45) are respectively fixedly mounted on both ends of the hanging spring pin shaft (44), and both third springs (45) are connected between the two second centrifugal blocks (41).

5. The adjustable centrifugal speed limiter for monorail crane according to claim 4, characterized in that: The control mechanism (5) comprises: A cam (51), the cam (51) being rotatably connected to the mounting plate (1), the cam (51) being sleeved on the second centrifugal block (41), and a gap being left between an inner side wall of the cam (51) and a side wall of the second centrifugal block (41); a connecting rod (52), one end of the connecting rod (52) being capable of abutting against a convex end of the cam (51); A mechanical reversing valve (53), wherein the mechanical reversing valve (53) is fixedly mounted on the mounting plate (1), an end of the connecting rod (52) away from the cam (51) is fixedly connected to a control end of the mechanical reversing valve (53), and an output end of the mechanical reversing valve (53) is connected to a braking system of the monorail crane.

6. The adjustable centrifugal speed limiter for monorail crane according to claim 3, characterized in that: The mounting plate (1) is slidably connected to an adjustment mechanism, the adjustment mechanism comprising: A sliding plate (61), the sliding plate (61) being slidably connected to the mounting plate (1); A through slot (62), the through slot (62) being formed on the sliding plate (61), and the shaft sleeve (31) passing through the through slot (62); A fourth spring (63), one end of the fourth spring (63) being fixedly mounted on the sliding plate (61), and the other end of the fourth spring (63) being fixedly mounted on the mounting plate (1).

7. The adjustable centrifugal speed limiter for monorail crane according to claim 5, characterized in that: An end cover (7) is rotatably mounted on one end of the cam (51) away from the mounting plate (1).

8. The adjustable centrifugal speed limiter for a monorail crane according to claim 5, characterized in that: A debugging hole (8) is provided on the side wall of the cam (51), and the debugging hole (8) and the mounting stud (43) can be coaxial.

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