Anti-skid crane trolley brake

Abstract

This invention discloses an anti-slip crane trolley brake, relating to the field of crane braking technology. It includes a brake disc and a central controller. A worktable is placed on one side of the brake disc, and two magnetic plates are symmetrically fixed to the arc surface of the brake disc. A vertical plate is fixed to the top of the worktable, and two vertically distributed detection sensors are fixed to the vertical plate facing the arc surface of the brake disc. A clamping mechanism is provided on the top of the worktable, including a fixed platform, a push plate, and two Z-shaped rods, each with a mounting assembly at its end. This invention includes a central controller, a clamping mechanism, hydraulic rods, an infrared ranging sensor, and an adjustment mechanism. During braking, the infrared ranging sensor measures the distance between two connecting blocks. When the distance between the two connecting blocks is less than a set maximum difference, the central controller controls the adjustment mechanism to adjust the distance between the two connecting blocks, promptly compensating for brake pad wear and keeping it within the normal braking range.

Description

Technical Field

[0001] This invention relates to the field of crane braking technology, specifically to an anti-slip crane trolley brake. Background Technology

[0002] A crane consists of a trolley and a hoist. The trolley runs on a track laid on the main beam of the crane. The trolley and electric hoist in a crane are used to lift or move objects left and right. The other rotating wheels are called the trolley. Overhead cranes are usually equipped with a hoist, which includes a drum. The drum rotates around its axis via a hoisting motor and a gear reducer. A brake disc is installed on the drum, and a brake is installed on the brake disc.

[0003] During braking, both brake pads and discs wear down. As their thickness decreases, the braking stroke increases during emergency braking, leading to a longer braking response time. This is because existing crane brakes cannot readily adjust the distance between the brake pads and discs based on wear. Increased braking stroke during emergency braking raises the probability of accidents, such as increased cable slippage during crane cable travel, potentially causing dangerous incidents. Furthermore, cranes often operate continuously, frequently using the braking system. Prolonged contact and friction between brake pads and discs generate significant heat, which cannot be dissipated like in automobiles. Overheated brake pads and discs affect braking performance, compromising safety during emergency braking. Current crane brakes generally lack dedicated cooling devices, making it difficult to effectively maintain the temperature of brake pads and discs. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-slip crane trolley brake to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an anti-slip crane trolley brake, comprising a brake disc and a central controller. A workbench is placed on one side of the brake disc, and two magnetic plates are symmetrically fixed to the arc surface of the brake disc. A vertical plate is fixed to the top of the workbench, and two vertically distributed detection sensors are fixed to the side of the vertical plate facing the arc surface of the brake disc. A clamping mechanism is provided on the top of the workbench, comprising a fixed platform, a push plate, and two Z-shaped rods. Each end of the two Z-shaped rods is provided with a mounting assembly, which includes a connecting block. The connecting block is fixed to the end of the Z-shaped rod, and a brake pad assembly is provided inside the connecting block. The brake pad assembly is located on both sides of the brake disc. An infrared ranging sensor is fixed inside one of the connecting blocks. A mounting box is fixed to the left end face of the fixed platform, and an adjustment mechanism is provided inside the mounting box. A cooling mechanism is provided on the top of the mounting assembly. A secondary braking mechanism is provided on the right side of the workbench, and a power mechanism is provided on the side of the secondary braking mechanism. The power mechanism includes a push shaft, and the end of the push shaft is fixed to the inside of the push plate.

[0006] Furthermore, the clamping mechanism also includes a hydraulic rod, the telescopic rod of which passes through the fixed platform and is fixed to the outside of the push plate. Movable sleeves are movably fitted on both sides of the push plate. A support rod is movably connected to the top of the movable sleeve through a fixed pin. The other end of the support rod is movably connected to a fixed pin at the top of the fixed platform. A push rod is movably connected to the bottom of the movable sleeve through a fixed pin. The other end of the push rod is movably connected to a fixed pin fixed at the bottom of the Z-shaped rod.

[0007] Furthermore, the adjustment mechanism includes a lead screw that is rolledly connected to the inner wall of the mounting box, a movable block that is movably screwed onto the body of the lead screw, a motor that is fixed to the outside of the mounting box, the output end of the motor being fixed to the end of the lead screw, and a hydraulic rod being fixed to the end of the movable block.

[0008] Furthermore, the mounting assembly also includes a trapezoidal block integrally formed with the inner side of the connecting block and a first dovetail groove formed on the inner side of the connecting block. The connecting block has a cavity inside and a protrusion integrally formed at the bottom end of the connecting block. The protrusion is adapted to a sliding groove formed on the top of one side of the workbench.

[0009] Furthermore, the brake pad assembly includes a first dovetail block, which is adapted to a first dovetail groove. A first brake pad is fixed to the inner side of the first dovetail block, and a trapezoidal groove is integrally formed on the outer side of the first brake pad. The trapezoidal groove is adapted to the trapezoidal block, and a screw is fixed to the outer side of the first dovetail block. The screw is fixed to the connecting block by a nut on the screw.

[0010] Furthermore, the cooling mechanism includes an inlet pipe and an outlet pipe that are fixedly connected to the inner cavity of the connecting block. The ends of the two outlet pipes are fixedly connected to a hot water inlet pipe, and the ends of the two inlet pipes are fixedly connected to a cold water outlet pipe. A water pump is connected to the body of the cold water outlet pipe, and a heat exchanger is fixedly connected to one side of both the cold water outlet pipe and the hot water inlet pipe.

[0011] Furthermore, the secondary braking mechanism includes two second dovetail grooves and a U-shaped brake plate on the right side of the worktable. A second dovetail block is integrally formed on the left end face of the U-shaped brake plate. The second dovetail block is adapted to the second dovetail groove. A fixed shaft is fixed between the side walls of the second dovetail groove on the left side. The fixed shaft is movably inserted into the second dovetail block. A second spring is fixed between the side wall of the second dovetail groove on the left side and the second dovetail block. A movable shaft is movably inserted into the left plate of the U-shaped brake plate. A connecting shaft is fixed to the inner wall of the right plate of the U-shaped brake plate. A second brake pad is fixed to the end of both the connecting shaft and the movable shaft.

[0012] Furthermore, the power mechanism also includes a first piston cylinder, a return oil tank, and a second piston cylinder. A first piston is movably connected to the inner wall of the first piston cylinder, and a push shaft is fixed to the first piston. An oil main pipe is fixedly connected to the side of the first piston cylinder. An oil outlet pipe and an oil return pipe are fixedly connected to the body of the oil main pipe. A first solenoid valve and a second solenoid valve are respectively connected to the bodies of the oil outlet pipe and the oil return pipe. The oil return pipe is fixedly connected to the return oil tank, and the oil outlet pipe is fixedly connected to the second piston cylinder. A second piston is movably connected inside the second piston cylinder. A first spring is fixed between the second piston and the side wall of the second piston cylinder. The right end face of the second piston is fixed to the movable shaft.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This anti-slip crane trolley brake is equipped with a central controller, clamping mechanism, hydraulic rod, infrared ranging sensor, and adjustment mechanism. During braking, the infrared ranging sensor measures the distance between two connecting blocks. When the distance between the two connecting blocks is less than the set maximum difference, the central controller controls the adjustment mechanism to adjust the distance between the two connecting blocks. This promptly compensates for the gap caused by brake pad wear, keeping it within the normal braking range. In the event of a cable slippage accident, the braking stroke time is reduced, thereby reducing the distance the cable slips and improving the safety of crane operation.

[0015] In addition, by installing components, brake pad assemblies and cooling mechanisms, liquid cooling can promptly exchange the heat generated by friction between the brake pads and brake disc during braking, stabilize the temperature of the contact area between the brake pads and brake disc, and ensure the temperature of the brake pads and brake disc during continuous operation of the crane. This effectively reduces the probability of loss of braking effect due to overheating during emergency braking, further improving safety.

[0016] Furthermore, it is equipped with a two-stage braking mechanism and a power mechanism. When the crane's lifting motor fails and the crane's lifting hook or electric hoist slides rapidly, the cooperation between the two-stage braking mechanism and the power mechanism can initially brake the brake disc, avoiding potential brake failure due to sudden braking or causing the crane to be subjected to a large impact force due to emergency braking, thus protecting the crane's components. Attached Figure Description

[0017] Figure 1 This is the left-side axial view of the present invention;

[0018] Figure 2 This is the right-side axial view of the present invention;

[0019] Figure 3 This is a top view of the present invention;

[0020] Figure 4 This is a detailed view of the clamping mechanism and adjusting mechanism of the present invention;

[0021] Figure 5 This is another side axial view of the clamping mechanism and adjusting mechanism of the present invention;

[0022] Figure 6 This is an exploded view of the mounting assembly and brake pad assembly of the present invention;

[0023] Figure 7 This is a detailed view of the power assembly of the present invention;

[0024] Figure 8 This is a detailed view of the two-stage braking mechanism of the present invention;

[0025] Figure 9 This is a detailed view of the cooling mechanism of the present invention;

[0026] Figure 10 This is a control diagram for the present invention;

[0027] Figure 11 This is a control diagram for the first and second solenoid valves.

[0028] In the diagram: 1. Brake disc; 2. Worktable; 201. Slide groove; 3. Clamping mechanism; 301. Fixed platform; 302. Hydraulic rod; 303. Push plate; 304. Movable sleeve; 305. Support rod; 306. Z-shaped rod; 307. Push rod; 4. Mounting assembly; 401. Connecting block; 402. Trapezoidal block; 403. Cavity; 404. First dovetail groove; 5. Brake pad assembly; 501. First dovetail block; 502. First brake pad; 503. Trapezoidal groove; 504. Screw; 6. Infrared ranging sensor; 7. Mounting box; 8. Cooling mechanism; 801. Inlet pipe; 802. Outlet pipe; 803. Cold water outlet pipe; 804. Hot water inlet pipe; 805. Heat exchanger; 806. Water pump; 9. Secondary braking mechanism; 901, second dovetail groove; 902, U-shaped brake plate; 903, fixed shaft; 904, second spring; 905, connecting shaft; 906, second brake pad; 10, power mechanism; 101, first piston cylinder; 102, push shaft; 103, first piston; 104, oil main pipe; 105, oil outlet pipe; 106, oil return pipe; 107, oil return tank; 108, first solenoid valve; 109, second solenoid valve; 1010, second piston cylinder; 1011, second piston; 1012, first spring; 1013, movable shaft; 11, adjusting mechanism; 111, lead screw; 112, movable block; 113, motor; 12, magnetic sheet; 13, vertical plate; 14, detection sensor. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that in the description of this invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale; for example, the thickness or width of some layers may be exaggerated relative to other layers.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.

[0033] The crane trolley is typically used to load and unload the main load-bearing steel cables during the overall operation of the crane. During crane operation, the steel cables on the trolley will bear heavy objects within their load range. To ensure the safety of the crane during lifting, in addition to the steel cable meeting the required quality, a braking device is also required to cope with the deceleration and emergency braking of the trolley during lifting. In the event of loss of torque and cable slippage of the trolley, the braking device needs to be used for emergency braking to ensure the safety of the lifting operation and reduce the probability of safety accidents. This invention makes innovative improvements to some problems in the use of existing braking devices, and the specific description is as follows.

[0034] like Figure 1 - Figure 9 As shown, the present invention provides a technical solution: an anti-slip crane trolley brake, including a brake disc 1 and a central controller. A workbench 2 is placed on one side of the brake disc 1, and support feet are fixed at the four corners of the bottom of the workbench 2. The support feet are fixed to the mounting frame. Two magnetic plates 12 are symmetrically fixed on the arc surface of the brake disc 1. A vertical plate 13 is fixed on the top of the workbench 2. Two vertically distributed detection sensors 14 are fixed on the side of the vertical plate 13 facing the arc surface of the brake disc 1. The detection sensors 14 can sense the magnetic plates 12 to measure the rotation speed of the brake disc 1. The speed of the detection sensors 14 and the speed of the rotating wheel on the side of the magnetic plates 12 are existing technologies and will not be described in detail in this solution. A clamping mechanism 3 is provided on the top of the workbench 2. The clamping mechanism 3 includes a fixed platform 301, a push plate 303 and two Z-shaped rods 306. A mounting assembly 4 is provided at the end of each of the two Z-shaped rods 306. In addition, the mounting assembly 4 includes a connecting block 401. It is known that the connecting block 401... 1. The end of the Z-shaped rod 306 is fixed. Brake pad assembly 5 is provided on the inner side of the connecting block 401 and the brake pad assembly 5 is located on both sides of the brake disc 1. An infrared distance sensor 6 is fixed on the inner side of one of the connecting blocks 401 and is located on the outer side of the brake disc 1. The infrared distance sensor 6 is set to measure the distance between the two connecting blocks 401. A mounting box 7 is fixed on the left end face of the fixed platform 301 and an adjustment mechanism 11 is set inside the mounting box 7. The adjustment mechanism 11 is set to adjust the distance between the two connecting blocks 401. A cooling mechanism 8 is set on the top of the mounting assembly 4. A secondary braking mechanism 9 is set on the bottom right side of the worktable 2. A power mechanism 10 is set on the side of the secondary braking mechanism 9. The power mechanism 10 provides braking power to the secondary braking mechanism 9. The power mechanism 10 includes a push shaft 102 and the end of the push shaft 102 is fixed to the inner side of the push plate 303.

[0035] To enable the two connecting blocks 401 to move horizontally towards each other, such as Figure 4 As shown, the clamping mechanism 3 also includes a hydraulic rod 302. The telescopic rod of the hydraulic rod 302 passes through the fixed platform 301 and is fixed to the outside of the push plate 303. Movable sleeves 304 are movably sleeved on both sides of the push plate 303. A support rod 305 is movably connected to the top of the movable sleeve 304 by a fixing pin. The other end of the support rod 305 is movably connected to the fixing pin at the top of the fixed platform 301. A push rod 307 is movably connected to the bottom of the movable sleeve 304 by a fixing pin. The other end of the push rod 307 is movably connected to the fixing pin fixed at the bottom of the Z-shaped rod 306.

[0036] Specifically, when braking, the hydraulic rod 302 extends, and the telescopic rod of the hydraulic rod 302 drives the push plate 303 to move forward. Since the top and bottom of the movable sleeve 304 are respectively provided with movable support rods 305 and push rods 307, the push rods 307 can push the two Z-shaped rods 306 to move towards each other, thereby realizing the two connecting blocks 401 to move towards each other, realizing the pressure of the brake pad assembly 5 on the brake disc 1, and thus realizing braking.

[0037] To compensate for the wear of the first brake pad 502, the distance between the two first brake pads 502 is adjusted, such as... Figure 4 As shown, the adjustment mechanism 11 includes a lead screw 111 that is rolledly connected to the inner wall of the mounting box 7. A movable block 112 is movably screwed onto the body of the lead screw 111. A motor 113 is fixed on the outside of the mounting box 7, and the output end of the motor 113 is fixed to the end of the lead screw 111. Since the servo motor can control the speed and has very accurate position, in this embodiment, it is necessary to accurately adjust the distance between the two connecting blocks 401. Therefore, the motor 113 is preferably a servo motor, and the hydraulic rod 302 is fixed to the end of the movable block 112.

[0038] refer to Figure 10 During braking, the infrared ranging sensor 6 measures the distance between the two connecting blocks 401 and then transmits the measurement data to the central controller. The central controller calculates the difference between the distance between the two connecting blocks 401 and the initial distance. When the difference is greater than or equal to the threshold preset by the central controller, it indicates that the wear of the first brake pad 502 has affected the braking distance. After a braking operation, the connecting blocks 401 are reset. At this time, the central controller controls the motor 113 to start. When the motor 113 rotates, it drives the movable block 112 to move forward, thereby adjusting the distance between the two connecting blocks 401 until the distance between the two connecting blocks 401 has compensated for the difference, so that the distance between the end faces of the two first brake pads 502 is within the appropriate braking range of the brake.

[0039] Regarding the installation of mounting component 4 and brake pad assembly 5, as follows: Figure 6 As shown, the mounting assembly 4 also includes a trapezoidal block 402 integrally formed with the inner side of the connecting block 401 and a first dovetail groove 404 formed on the inner side of the connecting block 401. A cavity 403 is formed inside the connecting block 401. A protrusion is integrally formed at the bottom end of the connecting block 401, and the protrusion is adapted to the slide groove 201 formed at the top of one side of the workbench 2. The brake pad assembly 5 includes a first dovetail block 501, and the first dovetail block 501 and the first dovetail groove 404 are adapted to each other. A first brake pad 502 is fixed to the inner side of 01. A trapezoidal groove 503 is integrally formed on the outer side of the first brake pad 502. The trapezoidal groove 503 is adapted to the trapezoidal block 402. The trapezoidal groove 503 and the trapezoidal block 402 are designed to increase the contact area between the cavity 403 and the first brake pad 502, thereby improving the heat dissipation speed and efficiency. A screw 504 is fixed to the outer side of the first dovetail block 501. The screw 504 and the connecting block 401 are fixed together by a nut on the screw 504.

[0040] During installation, the first dovetail block 501 is inserted into the first dovetail groove 404, and then the nut is tightened on the side of the connecting block 401 to achieve quick installation of the first brake pad 502.

[0041] To achieve cooling of the first brake pad 502, prevent brake failure due to overheating, and improve system safety, such as... Figure 4 and Figure 9 As shown, the cooling mechanism 8 includes an inlet pipe 801 and an outlet pipe 802 that are fixedly connected to the inner cavity of the connecting block 401. Hot water inlet pipes 804 are fixedly connected to the ends of the two outlet pipes 802. A flexible hose is also connected to the pipe body of the inlet pipe 801 and the outlet pipe 802. Cold water outlet pipes 803 are fixedly connected to the ends of the two inlet pipes 801. A water pump 806 is connected to the pipe body of the cold water outlet pipe 803. The water pump 806 provides power for hot water exchange. A heat exchanger 805 is fixedly connected to both the cold water outlet pipe 803 and the hot water inlet pipe 804. The heat exchanger 805 is preferably a plate heat exchanger.

[0042] Specifically, the water pump 806 pumps the cooling water that has been heated by the heat exchanger 805 into the inlet pipe 801 and the cavity 403. When the cooling water flows in the cavity 403, it exchanges heat with the heat generated by friction on the outside of the first brake pad 502. After the heat exchange, the water enters the heat exchanger 805 through the outlet pipe 802 and the hot water inlet pipe 804 for further cooling, thus circulating for reuse. The cooling mechanism 8 can promptly exchange heat with the first brake pad 502 and the brake disc 1 generated by friction during braking, thereby cooling the first brake pad 502 in a timely manner, preventing brake failure, and further improving safety.

[0043] To prevent crane lifting motor failure, when the crane's lifting hook or electric hoist slips rapidly, the brake disc 1 is initially applied to prevent brake failure that may occur due to sudden braking. Figure 7 and Figure 8 As shown, the secondary braking mechanism 9 includes two second dovetail grooves 901 and a U-shaped brake plate 902 located on the right side of the worktable 2. It is known that the brake disc 1 is located in the U-shaped groove of the U-shaped brake plate 902. A second dovetail block is integrally formed on the left end face of the U-shaped brake plate 902, and the second dovetail block is adapted to the second dovetail groove 901. A fixed shaft 903 is fixed between the side walls of the second dovetail groove 901 on the left side, and the fixed shaft 903 is movably inserted into the second dovetail block. A second spring 904 is fixed between the side wall of the second dovetail groove 901 on the left side and the second dovetail block. The fixed shaft 903 is located in the spiral ring of the second spring 904. A movable shaft 1013 is movably inserted into the left plate of the U-shaped brake plate 902. A connecting shaft 905 is fixed on the inner wall of the right plate of the U-shaped brake plate 902, and a second brake pad 906 is fixed to the ends of both the connecting shaft 905 and the movable shaft 1013.

[0044] To provide power to the secondary braking mechanism 9, such as Figure 7 and Figure 8 As shown, the power mechanism 10 further includes a first piston cylinder 101, an oil return tank 107, and a second piston cylinder 1010. A first piston 103 is movably connected to the inner wall of the first piston cylinder 101, and a push shaft 102 is fixed to the first piston 103. An oil main pipe 104 is fixedly connected to the side of the first piston cylinder 101. An oil outlet pipe 105 and an oil return pipe 106 are fixedly connected to the body of the oil main pipe 104. A first solenoid valve 10 is connected to the body of the oil outlet pipe 105 and the oil return pipe 106, respectively. 8 and the second solenoid valve 109 are controlled by the central controller to open and close the first solenoid valve 108 and the second solenoid valve 109. The return oil pipe 106 is fixedly connected to the return oil tank 107, and the oil outlet pipe 105 is fixedly connected to the second piston cylinder 1010. The second piston 1011 is movably connected inside the second piston cylinder 1010, and the first spring 1012 is fixed between the second piston 1011 and the side wall of the second piston cylinder 1010. The right end face of the second piston 1011 is fixed to the movable shaft 1013.

[0045] The working principles and related working steps of clamping mechanism 3, mounting component 4, adjusting mechanism 11 and brake pad assembly 5 have been explained above. The working principles of secondary braking mechanism 9 and power mechanism 10 will now be explained.

[0046] like Figure 10 and Figure 11As shown, the speed of the brake disc 1 is monitored by the detection sensor 14, and the detection data is transmitted to the central controller in real time. When the speed of the brake disc 1 is below the threshold originally set by the system (including the stopped state), the central controller always controls the second solenoid valve 109 to open and the first solenoid valve 108 to close (when the adjusting mechanism 11 is adjusting, the second solenoid valve 109 is open and the first solenoid valve 108 is closed), that is, the secondary braking mechanism 9 does not operate. When the detection sensor 14 detects that the speed of the brake disc 1 reaches or exceeds the speed threshold, the system judges that the motor has failed and the crane has slipped. At this time, the central controller controls the second solenoid valve 109 to close and the first solenoid valve 108 to open, and the hydraulic rod 302 extends to make Oil from the first piston cylinder 101 is forced into the second piston cylinder 1010, thereby driving the movable shaft 1013 and the second brake pad 906 fixed at the end of the movable shaft 1013 to squeeze the brake disc 1 under oil pressure. When the pressure is continuously applied, the second spring 904 is compressed, and the U-shaped brake plate 902 moves to the left, thereby squeezing the side of the brake disc 1 with another second brake pad 906, thus reducing the size of the brake disc 1. Finally, after the hydraulic rod 302 continues to extend, the first brake pad 502 brakes the brake disc 1. This device enables the initial braking of the brake disc 1, avoiding brake failure that may be caused by sudden braking, or causing the crane to be subjected to a large impact force due to emergency braking, thus protecting the crane components.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A type of anti-slip crane trolley brake, comprising a brake disc (1) and a central controller, characterized in that: A workbench (2) is placed on one side of the brake disc (1). Two magnetic plates (12) are symmetrically fixed on the arc surface of the brake disc (1). A vertical plate (13) is fixed on the top of the workbench (2). Two vertically distributed detection sensors (14) are fixed on the side of the vertical plate (13) facing the arc surface of the brake disc (1). A clamping mechanism (3) is provided on the top of the workbench (2). The clamping mechanism (3) includes a fixed platform (301), a push plate (303), and two Z-shaped rods (306). The ends of the two Z-shaped rods (306) are provided with mounting components (4). The mounting components (4) include connecting blocks (401). The connecting blocks (401) are fixed to the ends of the Z-shaped rods (306). Brake pad assemblies (5) are provided on the inner side of each block (401). The brake pad assemblies (5) are located on both sides of the brake disc (1). An infrared ranging sensor (6) is fixed on the inner side of one of the connecting blocks (401). An installation box (7) is fixed on the left end face of the fixed platform (301). An adjustment mechanism (11) is provided inside the installation box (7). A cooling mechanism (8) is provided on the top of the installation assembly (4). A secondary braking mechanism (9) is provided on the right side of the workbench (2). A power mechanism (10) is provided on the side of the secondary braking mechanism (9). The power mechanism (10) includes a push shaft (102). The end of the push shaft (102) is fixed to the inner side of the push plate (303). The clamping mechanism (3) further includes a hydraulic rod (302). The telescopic rod of the hydraulic rod (302) passes through the fixed platform (301) and is fixed to the outside of the push plate (303). Movable sleeves (304) are movably sleeved on both sides of the push plate (303). The top of the movable sleeve (304) is movably connected to a support rod (305) through a fixed pin. The other end of the support rod (305) is movably connected to a fixed pin at the top of the fixed platform (301). The bottom of the movable sleeve (304) is movably connected to a push rod (307) through a fixed pin. The other end of the push rod (307) is movably connected to a fixed pin fixed at the bottom of the Z-shaped rod (306). The adjustment mechanism (11) includes a lead screw (111) that is rolled to the inner wall of the mounting box (7). A movable block (112) is movably screwed onto the body of the lead screw (111). A motor (113) is fixed to the outside of the mounting box (7). The output end of the motor (113) is fixed to the end of the lead screw (111). The hydraulic rod (302) is fixed to the end of the movable block (112).

2. The anti-slip crane trolley brake according to claim 1, characterized in that: The mounting assembly (4) also includes a trapezoidal block (402) integrally formed with the inner side of the connecting block (401) and a first dovetail groove (404) opened on the inner side of the connecting block (401). A cavity (403) is opened inside the connecting block (401). A protrusion is integrally formed at the bottom end of the connecting block (401), and the protrusion is adapted to the slide groove (201) opened on the top of one side of the workbench (2).

3. The anti-slip crane trolley brake according to claim 2, characterized in that: The brake pad assembly (5) includes a first dovetail block (501), which is adapted to a first dovetail groove (404). A first brake pad (502) is fixed on the inner side of the first dovetail block (501), and a trapezoidal groove (503) is integrally formed on the outer side of the first brake pad (502). The trapezoidal groove (503) is adapted to the trapezoidal block (402), and a screw (504) is fixed on the outer side of the first dovetail block (501). The screw (504) and the connecting block (401) are fixed together by a nut on the screw (504).

4. The anti-slip crane trolley brake according to claim 2, characterized in that: The cooling mechanism (8) includes an inlet pipe (801) and an outlet pipe (802) that are fixedly connected to the inner cavity of the connecting block (401). The ends of the two outlet pipes (802) are fixedly connected to a hot water inlet pipe (804), and the ends of the two inlet pipes (801) are fixedly connected to a cold water outlet pipe (803). A water pump (806) is connected to the pipe body of the cold water outlet pipe (803). A heat exchanger (805) is fixedly connected to one side of both the cold water outlet pipe (803) and the hot water inlet pipe (804).

5. The anti-slip crane trolley brake according to claim 1, characterized in that: The secondary braking mechanism (9) includes two second dovetail grooves (901) and a U-shaped brake plate (902) on the right side of the workbench (2). The left end face of the U-shaped brake plate (902) is integrally formed with a second dovetail block, which is adapted to the second dovetail groove (901). A fixed shaft (903) is fixed between the side walls of the second dovetail groove (901) on the left side. The fixed shaft (903) is movably inserted into the second dovetail block. A second spring (904) is fixed between the side wall of the second dovetail groove (901) on the left side and the second dovetail block. A movable shaft (1013) is movably inserted into the left plate of the U-shaped brake plate (902). A connecting shaft (905) is fixed to the inner wall of the right plate of the U-shaped brake plate (902). The ends of the connecting shaft (905) and the movable shaft (1013) are both fixed with second brake pads (906).

6. The anti-slip crane trolley brake according to claim 5, characterized in that: The power mechanism (10) further includes a first piston cylinder (101), an oil return tank (107), and a second piston cylinder (1010). A first piston (103) is movably connected to the inner wall of the first piston cylinder (101). A push shaft (102) is fixed to the first piston (103). An oil main pipe (104) is fixedly connected to the side of the first piston cylinder (101). An oil outlet pipe (105) and an oil return pipe (106) are fixedly connected to the body of the oil main pipe (104). The oil outlet pipe (105) and the oil return pipe (106) are connected to each other. The body is connected to a first solenoid valve (108) and a second solenoid valve (109). The return oil pipe (106) is fixedly connected to the return oil tank (107). The oil outlet pipe (105) is fixedly connected to the second piston cylinder (1010). The second piston (1011) is movably connected inside the second piston cylinder (1010). The first spring (1012) is fixed between the second piston (1011) and the side wall of the second piston cylinder (1010). The right end face of the second piston (1011) is fixed to the movable shaft (1013).

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