Lifting steel wire wheel braking device
By using a wire wheel braking device composed of support components and brake components in small cranes, the problems of limited friction, severe wear and complex maintenance in the prior art are solved, and faster and more stable braking effects and reduced maintenance costs are achieved.
Patent Information
- Application Number
- CN202411904476.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-03-18
AI Technical Summary
The existing wire wheel brake devices of small cranes have problems such as limited friction, slow response speed, severe wear, complex maintenance and high cost.
A wire wheel braking device composed of a support assembly and a brake assembly is adopted to provide power to the wire wheel through the support assembly, and a large area of friction is applied to the inner wall of the wire wheel through the brake assembly to brake.
Faster and more stable braking effects are achieved, reducing wear, reducing maintenance and replacement costs, and simplifying the maintenance process.
Smart Images
Figure CN119637760A_ABST
Abstract
Description
Technical Field
[0001] The present invention discloses a lifting wire wheel brake device, which relates to a wire wheel brake device capable of braking a wire wheel of a small crane, and belongs to the technical field of crane braking, and particularly relates to a wire wheel brake device for a small crane, which supports the wire wheel through a support component to provide power for the rotation of the wire wheel, and brakes the wire wheel by applying friction force to a large area of the inner wall of the wire wheel through a brake component. Background Art
[0002] In the field of small cranes, the wire wheel brake device is a key component to ensure the safe operation of the equipment. The existing small crane wire wheel brake device usually adopts the traditional mechanical friction braking method. The common method is to use belt brake, which is wrapped around the brake belt on the wire wheel drive shaft. The brake belt is tightened under the action of the tensioning device to generate friction to prevent the wire wheel from rotating. However, this braking method has many disadvantages. First, due to the small contact area between the brake belt and the drive shaft, the friction force is limited, which affects the braking effect and response speed. This may lead to untimely braking in an emergency and increase the risk of accidents. Secondly, the small contact area means that when braking, Concentrated pressure can easily cause rapid wear of the brake band and drive shaft, which not only shortens the service life of the brake band, but also increases the cost of replacement and repair. For small cranes, such maintenance costs are especially important, because small cranes are usually used in small construction sites or temporary work with limited budgets. Frequent maintenance and replacement will put a greater pressure on operating costs. Finally, the adjustment and maintenance of the brake band are also relatively complicated. Since a certain friction force needs to be maintained to ensure the braking effect, the brake band needs to be checked and adjusted frequently, which consumes time and manpower. In an emergency, if the brake band is not adjusted correctly, it may result in insufficient braking force and increase the risk of accidents.
[0003] Publication No. CN111765182B discloses a crane braking device, including a brake wheel coaxially arranged with the crane wheel and a brake assembly movable to the center axis of the brake wheel during braking, the brake assembly including a brake shaft coaxial with the center axis of the brake wheel during braking, a brake arc plate uniformly distributed around the brake shaft by springs, a brake steel block located at one end of the brake shaft and rotatable, and a support rod with one end connected to the brake arc plate and the other end infinitely close to or in contact with the side of the brake steel block in an initial state; during braking, the brake assembly moves to the center axis of the brake wheel, the brake steel block rotates, the side of the brake steel block contacts and pushes the support rod, and the support rod drives the brake arc plate to press against the brake wheel to generate friction to prevent the rotation of the crane wheel; Publication No. CN101235856A discloses an emergency brake for a gantry crane, which is characterized in that it is composed of two clamping arms and an electric hydraulic pusher The two clamp arms are formed by a protrusion on the inner side, an axial hole on the protrusion, and the two clamp arms are connected together by a hinge shaft. The head shape of the two clamp arms is a cut ring shape adapted to the rim of the traveling wheel exposed outside, and a brake pad is arranged on the cut ring surface in contact with the rim of the traveling wheel. The inner side of the tail of the two clamp arms is connected to an electric hydraulic pusher, and the outer side of the tail of the two clamp arms is provided with a connecting shaft, which is movably connected to the head bracket of the crane end beam through the connecting shaft. During the braking process, the crane braking device works on a smaller area to generate friction, thereby braking the wire wheel. However, during the working process, the braking area will be subjected to excessive pressure, thereby aggravating wear, which not only shortens the service life of the device, but also increases the cost of replacement and maintenance. Secondly, this unbalanced force distribution not only affects the stability and reliability of the braking effect, but also may cause braking failure, increasing the risk of operation. Summary of the invention
[0004] In order to improve the above situation, a lifting wire wheel brake device of the present invention provides a wire wheel brake device which supports the wire wheel through a support component to provide power for the rotation of the wire wheel, and applies friction force to a large area of the inner wall of the wire wheel through a brake component to perform braking.
[0005] The invention discloses a lifting wire wheel brake device, which is implemented as follows: the lifting wire wheel brake device is composed of a support assembly and a brake assembly. The support assembly is composed of a wire wheel motor, a wire rope wheel brake fixing frame, a wire wheel motor support frame, a wire wheel support fixing frame, a wire wheel support fixing ring, a wire wheel baffle, a wire wheel transmission plate, a wire wheel and a wire wheel groove. The wire wheel motor is fixed on one end of the wire rope wheel brake fixing frame. Preferably, the wire rope pulley brake fixing frame is a U-shaped structure, and the wire rope pulley brake fixing frame is composed of a bottom plate and two vertical plates. The wire wheel motor support frame is fixed on the bottom plate of the wire rope wheel brake fixing frame and is placed close to the wire wheel motor. The wire wheel support bracket is fixed on the bottom plate of the wire rope wheel brake bracket. Preferably, the wire wheel support and fixing frame is a rectangular parallelepiped structure, the bottom surface of the wire wheel support and fixing frame coincides with the bottom surface of the wire rope wheel brake fixing frame, and the top surface of the wire wheel support and fixing frame is provided with an arc-shaped groove. The wire wheel support fixing ring is fixedly placed on the wire wheel support fixing frame, and the wire wheel support fixing ring is in a circular ring structure. Preferably, the outer ring surface of the wire wheel support fixing ring and the arc-shaped groove on the top surface of the wire wheel support fixing frame fit together. The wire wheel baffle is rotatably connected and placed on the inner ring surface of the wire wheel support fixing ring, and a support bearing is placed between the wire wheel baffle and the wire wheel support fixing ring. The wire wheel baffle is a circular ring structure. The wire wheel transmission plate axle passes through the wire wheel motor support frame and is connected to the wire wheel motor motor shaft, and a support bearing is arranged between the wire wheel motor support frame. Preferably, the diameter of the wire wheel transmission plate is the same as the diameter of the outer annular surface of the wire wheel baffle. One end of the wire wheel is fixedly connected to the wire wheel transmission plate, and the other end of the wire wheel is fixedly connected to the wire wheel baffle. Preferably, the wire wheel is in a cylindrical structure, the inner ring diameter of the wire wheel is the same as the inner ring diameter of the wire wheel baffle, and the outer ring diameter of the wire wheel is smaller than the diameter of the wire wheel transmission plate. The outer ring surface of the wire wheel is provided with a wire wheel groove, and the wire wheel groove is wound around the outer ring surface of the wire wheel in a threaded shape. Preferably, the inner ring surface of the wire wheel is uneven. The brake assembly is composed of a brake mechanism motor, a brake cylinder crank, a fixed hinge column fixing frame, a fixed hinge column, an incomplete circular ring brake rocker, a brake connecting rod and a triangular friction tooth. The brake mechanism motor is fixedly placed at the other end of the wire rope pulley brake fixing frame. The wheel shaft at one end of the brake cylindrical crank is connected to the motor shaft of the brake mechanism motor, and the wheel shaft at the other end of the brake cylindrical crank is rotatably connected to the wire wheel transmission plate, and a supporting bearing is arranged between the wire wheel transmission plate and the brake cylindrical crank. Preferably, the brake cylindrical crank is a cylindrical structure, and the brake cylindrical crank is a hollow structure. The fixed hinge column fixing frame is fixed on the wire rope pulley brake fixing frame. Preferably, one end of the fixed hinge column fixing frame extends from the side of the wire rope wheel brake fixing frame to one-fifth, bends from the one-fifth and vertically extends upward to the other end, and two fixed hinge column fixing frames are provided, and the two fixed hinge column fixing frames are symmetrically arranged with respect to the wire rope wheel brake fixing frame. One end of the fixed hinge column is fixedly placed on the fixed hinge column fixing frame. One end of the incomplete ring brake rocker is hinged on a fixed hinge column. Preferably, the incomplete circular brake rocker has an arc-shaped structure. Preferably, the two incomplete annular brake rockers surround the side edges of the brake cylindrical crank and are symmetrical about the center of the brake cylindrical crank. The incomplete annular brake rockers are located between the brake cylindrical crank and the wire wheel. Preferably, the width of the incomplete circular brake rocker is equal to the length of the brake cylinder crank, and the width of the incomplete circular brake rocker is less than the length of the wire wheel. Preferably, the arc-shaped concave surface of the incomplete circular brake rocker is provided with a plurality of reinforcing ribs. A rotating shaft is fixed at the edge of one end of the brake cylindrical crank. The rotating shaft is provided in two groups, and each group has two rotating shafts. The two rotating shafts in each group are symmetrical about the center of the brake cylindrical crank. The two groups of rotating shafts are respectively fixed at both ends of the brake cylindrical crank. One end of the brake connecting rod is rotatably connected to the upper shaft of the brake cylindrical crank, and the other end of the brake connecting rod is rotatably connected to the side of the incomplete circular brake rocker. The triangular friction teeth are fixed on the arc-shaped raised surface of the incomplete circular brake rocker. Preferably, the triangular friction teeth are provided in multiple groups, each of the incomplete circular brake rocker corresponds to a group of triangular friction teeth, and multiple triangular friction teeth are provided in each group. The multiple triangular friction teeth in the same group are arranged equidistantly along the arc direction of the incomplete circular brake rocker. The width of the triangular friction teeth gradually decreases from one end in contact with the incomplete circular brake rocker to the other end, and the other end of the triangular friction teeth is an arc-shaped structure. Furthermore, the brake connecting rod, the incomplete circular brake rocker, the fixed hinged column and a group of triangular friction teeth constitute a brake structure, and the brake structure is increased to have three groups, and the three groups of brake structures are arranged equidistantly along the circumference of the brake cylinder crank. Furthermore, a plurality of energy-saving holes are formed on the wire wheel baffle, and the plurality of energy-saving holes are arranged equidistantly along the circumference of the wire wheel baffle. Beneficial Effects
[0006] 1. Apply friction force to the inner wall of the wire wheel over a large area, avoiding excessive pressure and wear on the traditional brake belt in a specific area.
[0007] 2. The wide range of friction can improve the braking effect, make braking faster and more stable, help to more effectively control the stopping of equipment in an emergency, and improve overall safety.
[0008] 3. The whole device has a long service life, which reduces the cost of replacement and maintenance.
[0009] Fourth, the simplified mechanical structure makes inspection, adjustment and replacement of parts easier, greatly reducing the burden on maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a three-dimensional structural diagram of a lifting wire wheel brake device of the present invention; Figure 2 It is a three-dimensional structural diagram of a lifting wire wheel brake device of the present invention; Figure 3 It is a structural schematic diagram of a lifting wire wheel brake device of the present invention; Figure 4 It is a structural schematic diagram of a lifting wire wheel brake device of the present invention; Figure 5 This is a structural schematic diagram of a second embodiment of a lifting wire wheel brake device of the present invention; Figure 6 This is a structural schematic diagram of Example 3 of a lifting wire wheel braking device of the present invention. Attached photos
[0011] The components include: a wire rope wheel brake fixing frame (1), a wire wheel motor (2), a fixed hinged column (3), a wire wheel groove (4), a wire wheel baffle (5), an incomplete ring brake rocker (6), a brake connecting rod (7), a wire wheel (8), a brake cylindrical crank (9), a brake mechanism motor (10), a fixed hinged column fixing frame (11), a wire wheel transmission plate (12), a wire wheel support fixing ring (13), a wire wheel support fixing frame (14), a triangular friction tooth (15), a wire wheel motor support frame (16), a brake structure (17), and an energy-saving hole (18). DETAILED DESCRIPTION Example 1
[0012] A lifting wire wheel (8) braking device of the present invention is implemented as follows: A lifting wire wheel (8) braking device of the present invention is composed of a support component and a brake component. The support assembly comprises a wire wheel motor (2), a wire rope wheel brake fixing frame (1), a wire wheel motor support frame (16), a wire wheel support fixing frame (14), a wire wheel support fixing ring (13), a wire wheel baffle (5), a wire wheel transmission plate (12), a wire wheel (8) and a wire wheel groove (4). The wire wheel motor (2) is fixed on one end of the wire rope wheel brake fixing frame (1). Preferably, the wire rope pulley brake fixing frame (1) is a U-shaped structure, and the wire rope pulley brake fixing frame (1) is composed of a bottom plate and two vertical plates. The wire wheel motor support frame (16) is fixedly placed on the bottom plate of the wire rope wheel brake fixing frame (1) and is placed close to the wire wheel motor (2). The wire wheel support fixing frame (14) is fixedly placed on the bottom plate of the wire rope wheel brake fixing frame (1). Preferably, the wire wheel support fixing frame (14) is a rectangular parallelepiped structure, the bottom surface of the wire wheel support fixing frame (14) coincides with the bottom surface of the wire rope wheel brake fixing frame (1), and the top surface of the wire wheel support fixing frame (14) is provided with an arc-shaped groove. The wire wheel support fixing ring (13) is fixedly placed on the wire wheel support fixing frame (14), and the wire wheel support fixing ring (13) is in a circular ring structure. Preferably, the outer ring surface of the wire wheel support fixing ring (13) and the arc-shaped groove on the top surface of the wire wheel support fixing frame (14) are in contact with each other. The wire wheel baffle (5) is rotatably connected and placed on the inner ring surface of the wire wheel support fixing ring (13), and a support bearing is placed between the wire wheel baffle (5) and the wire wheel support fixing ring (13). The wire wheel baffle (5) is a circular ring structure. The wheel shaft of the wire wheel transmission plate (12) passes through the wire wheel motor support frame (16) and is connected to the motor shaft of the wire wheel motor (2), and a support bearing is arranged between the wire wheel transmission plate (12) and the wire wheel motor support frame (16). Preferably, the diameter of the wire wheel transmission plate (12) is the same as the diameter of the outer annular surface of the wire wheel baffle (5). One end of the wire wheel (8) is fixedly connected to the wire wheel transmission plate (12), and the other end of the wire wheel (8) is fixedly connected to the wire wheel baffle (5). Preferably, the wire wheel (8) has a cylindrical structure, the inner ring surface diameter of the wire wheel (8) is the same as the inner ring surface diameter of the wire wheel baffle (5), and the outer ring surface diameter of the wire wheel (8) is smaller than the diameter of the wire wheel transmission plate (12). The outer ring surface of the wire wheel (8) is provided with a wire wheel groove (4), and the wire wheel groove (4) is wound around the outer ring surface of the wire wheel (8) in a threaded shape. Preferably, the inner annular surface of the wire wheel (8) is uneven. The brake assembly is composed of a brake mechanism motor (10), a brake cylindrical crank (9), a fixed hinge column fixing frame (11), a fixed hinge column (3), an incomplete circular brake rocker (6), a brake connecting rod (7) and a triangular friction tooth (15). The brake mechanism motor (10) is fixedly placed on the other end of the wire rope wheel brake fixing frame (1). The wheel shaft at one end of the brake cylindrical crank (9) is connected to the motor shaft of the brake mechanism motor (10), and the wheel shaft at the other end of the brake cylindrical crank (9) is rotatably connected to the wire wheel transmission plate (12), and a support bearing is arranged between the brake cylindrical crank (9) and the wire wheel transmission plate (12). Preferably, the brake cylindrical crank (9) is a cylindrical structure, and the brake cylindrical crank (9) is a hollow structure. The fixed hinge column fixing frame (11) is fixedly placed on the wire rope pulley brake fixing frame (1). Preferably, one end of the fixed hinged column fixing frame (11) extends from the side of the wire rope wheel brake fixing frame (1) to one-fifth of the position, bends from the one-fifth position and extends vertically upward to the other end, and two fixed hinged column fixing frames (11) are provided, and the two fixed hinged column fixing frames (11) are symmetrically arranged with respect to the wire rope wheel brake fixing frame (1). One end of the fixed hinge column (3) is fixedly placed on the fixed hinge column fixing frame (11). One end of the incomplete circular brake rocker (6) is hingedly mounted on a fixed hinge column (3). Preferably, the incomplete circular brake rocker (6) is in an arc-shaped structure. Preferably, the two incomplete annular brake rockers (6) surround the side edges of the brake cylindrical crank (9) and are symmetrical about the center of the brake cylindrical crank (9). The incomplete annular brake rockers (6) are located between the brake cylindrical crank (9) and the wire wheel (8). Preferably, the width of the incomplete circular brake rocker (6) is equal to the length of the brake cylindrical crank (9), and the width of the incomplete circular brake rocker (6) is less than the length of the wire wheel (8). Preferably, the arc-shaped concave surface of the incomplete circular brake rocker (6) is provided with a plurality of reinforcing ribs. A rotating shaft is fixedly disposed at the edge of one end of the brake cylindrical crank (9), and the rotating shaft is provided in two groups, with two rotating shafts in each group. The two rotating shafts in each group are symmetrical about the center of the brake cylindrical crank (9), and the two groups of rotating shafts are respectively fixed at both ends of the brake cylindrical crank (9). One end of the brake connecting rod (7) is rotatably connected to the upper shaft of the brake cylindrical crank (9), and the other end of the brake connecting rod (7) is rotatably connected to the side of the incomplete circular brake rocker (6). The triangular friction teeth (15) are fixedly placed on the arc-shaped convex surface of the incomplete circular brake rocker (6). Preferably, the triangular friction teeth (15) are provided in a plurality of groups, each of the incomplete circular brake rocker (6) corresponds to a group of triangular friction teeth (15), a plurality of triangular friction teeth (15) are provided in each group, and the plurality of triangular friction teeth (15) in the same group are arranged equidistantly along the arc direction of the incomplete circular brake rocker (6), the width of the triangular friction teeth (15) gradually decreases from one end in contact with the incomplete circular brake rocker (6) to the other end, and the other end of the triangular friction teeth (15) is in an arc-shaped structure. When in use, the wire wheel motor (2) is started to drive the wire wheel (8) to rotate through the wire wheel baffle (5), thereby retracting and releasing the wire rope to achieve the descent or lifting of the lifted object. When it is necessary to stop the lifting of the object, the brake mechanism motor (10) is driven to rotate the brake cylinder crank (9), thereby driving the brake connecting rod (7) to move, so that the incomplete circular brake rocker (6) rotates around the fixed hinge column (3), and the triangular friction teeth (15) above the incomplete circular brake rocker (6) contact the inner wall of the wire wheel (8) to produce The wire wheel (8) is stopped from rotating by friction force, thereby achieving a braking effect. When it is necessary to continue to lift the heavy object, the brake mechanism motor (10) is driven to rotate in the opposite direction, thereby causing the incomplete annular brake rocker (6) to rotate in the opposite direction around the fixed hinge column (3), so that the triangular friction teeth (15) and the inner wall of the wire wheel (8) are separated, thereby releasing the brake. In this way, the wire wheel motor (2) is started and the wire wheel (8) can be driven to rotate through the wire wheel baffle (5), thereby achieving the descent or lifting of the lifted heavy object. Example 2
[0013] The difference between this embodiment and embodiment 1 is that the brake connecting rod (7), the incomplete circular brake rocker (6), the fixed hinge column (3) and a group of triangular friction teeth (15) form a brake structure (17), and the brake structure (17) is increased to three groups, and the three groups of brake structures (17) are arranged equidistantly along the circumference of the brake cylindrical crank (9). When in use, the three brake structures (17) are evenly distributed in a ring shape around the inner wall of the wire wheel (8), and friction force is evenly applied to the inner wall of the wire wheel (8), thereby achieving a more efficient and balanced braking effect. Example 3
[0014] The difference between this embodiment and embodiment 1 is that: the wire wheel baffle (5) is provided with a plurality of energy-saving holes (18), and the plurality of energy-saving holes (18) are arranged equidistantly along the circumference of the wire wheel baffle (5). When in use, the weight of the wire wheel baffle (5) is reduced, which directly reduces the energy required by the drive device during operation, especially the power demand when lifting heavy objects. As the power demand of the system decreases, the corresponding energy consumption is also reduced, which can accumulate into considerable energy savings in long-term operation. The incomplete circular brake rocker (6) is in an arc-shaped structure and is close to the inner wall of the wire wheel (8). The triangular friction teeth (15) are evenly distributed on the outer ring surface of the incomplete circular brake rocker (6), so that each tooth can contact the inner ring surface of the wire wheel (8) during the braking process to generate sufficient friction force. At the same time, the shape and distribution of the teeth are also conducive to improving wear resistance and braking efficiency. The width of the triangular friction tooth (15) gradually decreases from one end in contact with the incomplete circular brake rocker (6) to the other end. The arc-shaped structure of the other end of the triangular friction tooth (15) can make the contact between the friction tooth and the inner ring surface of the wire wheel (8) smoother, reduce the vibration and impact noise caused by friction, and at the same time increase the surface area, improve the heat dissipation capacity of the parts, help reduce the temperature during operation, and extend the life of the tool; The brake cylindrical crank (9) is designed with a hollow structure, which reduces the weight of the entire device and reduces material costs, reduces inertia and resistance during operation, makes the operation more flexible and accurate, reduces the load of the brake mechanism motor (10), reduces energy consumption, increases the service life of the device, and improves work efficiency; The design that the outer ring surface diameter of the wire wheel (8) is smaller than the diameter of the wire wheel transmission plate (12), and smaller than the outer ring surface diameter of the wire wheel baffle (5), can limit the range of movement of the wire rope, reduce the risk of the wire rope coming out during high load or intense movement, reduce the risk of accidents that may be caused by the accidental coming out of the wire rope, ensure the safety of operators and equipment, reduce downtime and maintenance costs caused by the coming out of the wire rope, and improve the overall operating efficiency of the equipment; The wire wheel baffle (5) is rotatably connected via a bearing and a wire wheel support fixing ring (13), and the wire wheel support fixing ring (13) is fixedly placed on a wire wheel support fixing frame (14), thereby ensuring the stability of the wire wheel (8) during operation, reducing displacement caused by vibration or external force, and improving the stability and safety of the device; The purpose of supporting the wire wheel (8) through the support assembly to provide power for the rotation of the wire wheel (8) is achieved, and braking is performed by applying friction force to a large area of the inner wall of the wire wheel (8) through the brake assembly.
[0015] It should be noted that, unless otherwise clearly specified and limited, the terms "placed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection method such as a folding connection, a rivet connection, a pin connection, a bonding connection and a welding connection, or a detachable connection method such as a threaded connection, a snap connection and a hinge connection, or an integral connection, or an electrical connection, or a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
Claims
1. A lifting wire wheel brake device, characterized in that: The invention is composed of a support assembly and a brake assembly, wherein the support assembly is composed of a wire wheel motor, a wire rope wheel brake fixing frame, a wire wheel motor support frame, a wire wheel support fixing frame, a wire wheel support fixing ring, a wire wheel baffle, a wire wheel transmission plate, a wire wheel and a wire wheel groove. The wire wheel motor is fixed on one end of the wire rope wheel brake fixing frame, the wire wheel motor support frame is fixed on the bottom plate of the wire rope wheel brake fixing frame and is placed close to the wire wheel motor, the wire wheel support fixing frame is fixed on the bottom plate of the wire rope wheel brake fixing frame, and the wire wheel support The supporting and fixing ring is fixed on the wire wheel supporting and fixing frame, the wire wheel baffle is rotatably connected and placed on the inner ring surface of the wire wheel supporting and fixing ring, and a supporting bearing is arranged between the wire wheel driving plate axle and the wire wheel motor supporting and fixing ring, and a supporting bearing is arranged between the wire wheel motor supporting frame, one end of the wire wheel is fixedly connected to the wire wheel driving plate, and the other end of the wire wheel is fixedly connected to the wire wheel baffle, a wire wheel groove is opened on the outer ring surface of the wire wheel, and the brake assembly consists of a brake mechanism motor, The brake cylinder crank, a fixed hinged column fixing frame, a fixed hinged column, an incomplete circular brake rocker, a brake connecting rod and a triangular friction tooth are composed. The brake mechanism motor is fixedly placed at the other end of the wire rope wheel brake fixing frame. The wheel axle at one end of the brake cylinder crank is connected to the motor shaft of the brake mechanism motor. The wheel axle at the other end of the brake cylinder crank is rotatably connected to the wire wheel transmission plate, and a supporting bearing is placed between the wire wheel transmission plate. The fixed hinged column fixing frame is fixedly placed on the wire rope wheel brake fixing frame, and one end of the fixed hinged column is fixedly placed on the fixed hinged column fixing frame On the top, one end of the incomplete circular brake rocker is hinged on a fixed hinge column, a rotating shaft is fixed at the edge of one end of the brake cylindrical crank, the rotating shaft is provided with two groups, two rotating shafts are provided in each group, and the two rotating shafts in each group are symmetrical about the center of the brake cylindrical crank, and the two groups of rotating shafts are respectively fixed at both ends of the brake cylindrical crank, one end of the brake connecting rod is rotatably connected to the rotating shaft on the brake cylindrical crank, and the other end of the brake connecting rod is rotatably connected to the side of the incomplete circular brake rocker, and the triangular friction teeth are fixed on the arc-shaped convex surface of the incomplete circular brake rocker.
2. A lifting wire wheel brake device according to claim 1, characterized in that The brake connecting rod, the incomplete circular brake rocker, the fixed hinged column and a group of triangular friction teeth constitute a brake structure. The brake structure is increased to three groups, and the three groups of brake structures are arranged equidistantly along the circumference of the brake cylinder crank.
3. A lifting wire wheel brake device according to claim 1, characterized in that The wire wheel baffle is provided with a plurality of energy-saving holes, and the plurality of energy-saving holes are arranged equidistantly along the circumference of the wire wheel baffle.
4. A lifting wire wheel brake device according to claim 1, characterized in that The wire rope wheel brake fixing frame is a U-shaped structure, and the wire rope wheel brake fixing frame consists of a bottom plate and two vertical plates.
5. A lifting wire wheel brake device according to claim 1, characterized in that The wire wheel support fixing frame is a rectangular parallelepiped structure, the bottom surface of the wire wheel support fixing frame coincides with the bottom surface of the wire rope wheel brake fixing frame, and the top surface of the wire wheel support fixing frame is provided with an arc groove.
6. A lifting wire wheel brake device according to claim 1, characterized in that The wire wheel support fixing ring is in a circular ring structure, and the outer ring surface of the wire wheel support fixing ring fits with the arc-shaped groove on the top surface of the wire wheel support fixing frame.
7. A lifting wire wheel brake device according to claim 1, characterized in that The wire wheel baffle is in a circular ring structure, the diameter of the wire wheel transmission plate is the same as the diameter of the outer ring surface of the wire wheel baffle, the wire wheel groove is threadedly wound on the outer ring surface of the wire wheel, the inner ring surface of the wire wheel is uneven, the wire wheel is in a cylindrical structure, the diameter of the inner ring surface of the wire wheel is the same as the diameter of the inner ring surface of the wire wheel baffle, and the diameter of the outer ring surface of the wire wheel is smaller than the diameter of the wire wheel transmission plate.
8. A lifting wire wheel brake device according to claim 1, characterized in that The brake cylindrical crank has a cylindrical structure and a hollow structure. One end of the fixed hinged column fixing frame extends from the side of the wire rope wheel brake fixing frame to one-fifth, bends from the one-fifth and extends vertically upward to the other end. Two fixed hinged column fixing frames are provided, and the two fixed hinged column fixing frames are symmetrically arranged with respect to the wire rope wheel brake fixing frame.
9. A lifting wire wheel brake device according to claim 1, characterized in that The incomplete circular brake rocker has an arc-shaped structure. The two incomplete circular brake rockers are surrounded by the side edges of the brake cylindrical crank and are symmetrical about the center of the brake cylindrical crank. The incomplete circular brake rocker is located between the brake cylindrical crank and the wire wheel. The width of the incomplete circular brake rocker is equal to the length of the brake cylindrical crank. The width of the incomplete circular brake rocker is smaller than the length of the wire wheel. The arc-shaped concave surface of the incomplete circular brake rocker is provided with multiple reinforcing ribs.
10. A lifting wire wheel brake device according to claim 1, characterized in that There are multiple groups of triangular friction teeth, each of the incomplete circular brake rocker corresponds to a group of triangular friction teeth, and there are multiple triangular friction teeth in each group. The multiple triangular friction teeth in the same group are equidistantly arranged along the arc direction of the incomplete circular brake rocker. The width of the triangular friction teeth gradually decreases from one end in contact with the incomplete circular brake rocker to the other end, and the other end of the triangular friction tooth has an arc structure.
Citation Information
Patent Citations
Gantry crane emergency brake
CN101235856A
Crane braking device
CN111765182B