Introduction: The pulley of the cable car. Is the pulley of the cable car a fixed pulley? 1. The pulley of the cable car 2. Is the pulley of the cable car a fixed pulley? 3. Where are the pulleys of the cable car used? 4. Where are the pulleys of the cable car? 5. The working principle of the cable car pulley 6. The function of the cable car pulley 7. What is the function of the cable car’s pulley? 8. Is the cable car’s pulley a fixed pulley or a movable pulley?
1. Cable car pulley
The cable grippers are installed on two sides of the wire rope in the horizontal direction. When the steel wire rope passes through the wheel on the tower, it either goes over the wheel or under the wheel. The cable gripper on the wire rope does not affect the passing wheel on the tower.
2. Is the cable car pulley a fixed pulley?
Yes
The pulley on the hook of a tower crane that can move with the weight is called a movable pulley. It can change the magnitude of the force, but not its direction. There are also moving pulleys on cranes and cable cars.
3. Where are the cable car pulleys used?
Answer: It is to avoid collision with the fixed pulley on the tower. Because the cable car is fixed on the steel cable through the boom, and the cable is hung on the fixed pulley on the tower, the boom is made into an arc shape so that the fixed pulley on the tower will not collide with the fixed pulley when the cable car passes by. The cable car can smoothly pass through the fixed pulley under the traction of the steel cable, and the cable car can be used to go up and down.
4. Where are the pulleys on the cable car?
You can only ride a zipline from a high place to a low place. It is impossible to use the same zipline to slide back. You need another zipline from a high place to a low place to slide back, or you need to come back in other ways.
5. Working principle of cable car pulley
Examples of fixed pulleys and movable pulleys – ______ fixed pulleys are used on flagpoles, fixed pulleys are also used on clothes drying racks, and movable pulleys are used on cranes.
Give an example of the role of a fixed pulley______ A fixed pulley can change the direction of force, but it cannot save effort. (Regardless of friction), it is equivalent to an equal-arm lever. For example, when we raise a flag, there is a fixed pulley on the pole.
What are the application examples of fixed pulleys? ______ The fixed pulley at the top of the flagpole for raising the flag; the fixed pulley in the pulley block; the fixed pulley in the elevator
Examples of fixed pulleys in daily life______ Lifts, wall hangings during decoration, curtains, sliding doors, cranes, etc.……………………
Common fixed pulleys______ are the fixed pulleys on the top of the flag pole, fixed pulleys on cranes and cranes, fixed pulleys on hand-cranked clothes drying racks, box-type elevators in shopping malls, etc.
Give a few examples of fixed pulleys, movable pulleys and pulley sets – ______ Principle of fixed pulley The fixed pulley is essentially an equal-arm lever. The power arm l1 and the resistance arm l2 are both equal to the radius of the pulley. According to the lever balance condition, it can also be concluded that the fixed pulley is not labor-saving or Effortless conclusion. Like the pulley on the top of the flagpole, a pulley that is fixed in one position and rotates without moving is called a fixed pulley.
6. The function of cable car pulleys
The working principle of the turnable cable car is that the connection between the transport vehicle and the clamping steel rope is above the steel rope, the transport vehicle bypasses the turning pulley, and the frame that fixes the turning pulley is fixed on the other side of the transport vehicle. According to the above working principle, the technical solution is that the turnable cable car of the present invention is composed of a steel rope, a transport vehicle, a frame and a turning pulley. The transport vehicle is composed of a lifting chair, a transverse nut, a movable block, a compression bolt and a compression nut;
7. What is the function of the cable car pulleys?
Moving pulleys can save effort, while fixed pulleys can change the direction of force. Fixed pulleys include: flagpole, elevator; movable pulleys include: sails, cable cars, and cranes
8. Is the pulley of the cable car a fixed pulley or a movable pulley?
The wire rope is one of the important parts of the crane. It is used in the lifting mechanism, luffing mechanism, traction mechanism, and sometimes in the rotating mechanism. Driving tying items also use steel wire ropes. In addition, wire ropes are also used as mast tension ropes for mast cranes and support ropes for cable cranes and aerial ropeways.
In the lifting mechanism of the traveling vehicle.
The pulley plays the role of labor saving, supporting and guiding the wire rope. The material of the pulley is gray cast iron, cast steel, etc.
The drum is used to wind the wire rope in the lifting mechanism or traction mechanism. Convert rotary motion into the required linear motion.
The reels are divided into single-layer winding and multi-layer winding. Generally, most cranes use single-layer winding drums.
The surface of the single-layer winding drum is usually cut with spiral grooves to increase the contact area of the wire rope and prevent adjacent wire ropes from rubbing against each other, thereby increasing the service life of the wire rope.
The crane connects the lifting objects with the lifting mechanism through the fetching device, so that the loading, unloading, lifting and installation of these objects can be carried out. There are many types of retrieval devices. Such as: hooks, rings, ties, clamps, claws, support beams, electromagnetic suction cups, vacuum suction cups, grab buckets, container spreaders, etc.
The most commonly used retrieval device on bridge and gantry cranes is the hook. The breakage of the hook may cause major personal and equipment accidents. Therefore, the material of the hook is required to have no risk of sudden breakage.
The hooks for cranes with small and medium lifting capacity are forged; the hooks for cranes with large lifting capacity are riveted with steel plates, which are called piece hooks. Hooks are divided into single hooks and double hooks. Single hooks are easier to manufacture and use and are used for smaller lifting loads; when the lifting loads are larger, double hooks are often used in order to prevent the hook from being too heavy.
The cross-sectional shapes of the hook body (curved part) include: circular, rectangular, trapezoidal and T-shaped, etc. The inspection of various hooks focuses on the inspection of forged hooks, plate hooks and hook load tests.
In order to prevent decoupling and unexpected accidents. Hooks should be equipped with safety devices to prevent unhooking.
Driving is an intermittent action mechanism, and its working characteristic is frequent starting and braking. Therefore, the brake is both a working device and a safety device during driving. The brake has three functions: support, stop, and weight drop.
Brakes are classified according to their structure: block brakes; band brakes; disc and multi-disc brakes; cone brakes.
It depends on the operating conditions. Brakes are divided into: normally closed, normally open, and comprehensive brakes.
The closed brake is closed when the mechanism is not working, and the brake is separated by the brake release device when the mechanism is working.
Normally closed brakes are generally used when driving, especially the lifting mechanism must use normally closed brakes to ensure safety.
Normally open brakes are always in a released state and are only used to generate braking torque when braking is required.
The integrated brake is a combination of normally closed and normally open brakes.