13 spare parts of jaw crusher machine
Jaw Crusher is a common crushing mechanical equipment, mainly used for crushing granular materials in small and medium-sized mining, metallurgy, chemical industry, cement and construction industries. Jaw crusher consists of multiple parts, among which wearing parts mainly include the following aspects.
Jaw plate
It is the most common wearing part in jaw crusher. It is one of the crushing parts of the whole crusher and is directly responsible for crushing materials. The life of the jaw plate is generally 3-6 months, and its wear state will directly affect the crushing efficiency and product quality of the whole crusher. The jaw plate is the main crushing part of the jaw crusher, which is directly involved in the crushing process of the material. The jaw plate is usually made of high-strength and high-hardness alloy steel material, with strong wear resistance and impact resistance, can resist the wear of high-hardness materials, and maintain a stable crushing effect. The design and manufacturing process of the jaw plate directly affect the production capacity and service life of the crusher.
Crusher bearings (Bearings)
Crusher bearings are used to support the rotating parts of the movable jaw and fixed jaw, so that the movable jaw can reciprocate smoothly in the crusher. The quality of the bearing directly affects the operating stability and service life of the jaw crusher. The life of the jaw crusher bearing usually depends on the lubrication and load. Under normal circumstances, the service life of the bearing is 4000-5000 hours, but if the lubrication is insufficient or the load is too large, it will cause premature damage. Regular lubrication and inspection of the bearing is the key to ensure its long-term use.
Jaw crusher-jaw seat
The jaw seat is the supporting structure of the jaw crusher, which plays the role of connecting and supporting the jaw plate. The jaw seat is usually made of high-quality cast iron or welded steel plate, with sufficient strength and rigidity to withstand the impact and vibration generated by the jaw plate. The stable jaw seat ensures the stability and safety of the jaw crusher during operation.
Tooth plate of jaw crusher:
Tooth Plate is a component with uniform raised teeth on the jaw plate. It is located on both sides of the crusher. Its main function is to protect the body of the crusher and prevent it from being directly impacted by the crushed material. It can improve the crushing efficiency of the jaw plate. Because it is in direct contact with the jaw plate, it is also one of the vulnerable parts. Generally, its life is equivalent to that of the jaw plate.
Toggle plate of jaw crusher:
The toggle plate is a component used to connect the two jaw plates. It can make the operation of the crusher more stable and can play a certain protective role. But it is also one of the vulnerable parts because it is subject to huge pressure and vibration and is prone to fatigue damage.
Tension rod of jaw crusher:
The tension rod is a supporting component that connects the toggle plate to the jaw plate, which can make the power of the entire crusher more stable. Just like the toggle plate, it is subject to huge pressure and vibration and is prone to fatigue damage.
Backing Plate of Jaw Crusher:
The backing plate is a structural component closely connected with the jaw plate and the tooth plate. It is coated behind the jaw plate and the tooth plate to give them a certain degree of protection. The backing plate is also one of the vulnerable parts, but its life is relatively long compared to other vulnerable parts.
Jaw Crusher–Eccentric Shaft
Eccentric Shaft is the core component of the movable jaw movement. The movable jaw swings back and forth in the crushing chamber through the rotation of the eccentric shaft. It bears great impact and pressure and is responsible for transmitting power to the movable jaw. The service life of the eccentric shaft is usually long, but if it is subjected to excessive load or abnormal vibration during use, fatigue damage may occur. In general, the service life of the eccentric shaft is about 10,000 hours.
Jaw Crusher–Connecting Rod
Toggle Plate or “connecting rod plate” is an important component connecting the movable jaw and the drive system. Its function is to adjust the crusher’s discharge particle size through cooperation with the movable jaw and provide support for the movable jaw. The connecting rod plate of the crusher is usually durable, but it will break when it is subjected to sudden impact or overload, especially when crushing hard materials. Generally speaking, the life of the connecting rod is about 2000-3000 hours.
Jaw Crusher–Belt
The belt is mainly used to transmit power in the jaw crusher, connecting the motor and the various moving parts of the crusher. Crusher Belts transmit the rotational motion of the motor to the movable jaw and other parts. The service life of the belt is affected by factors such as ambient temperature, humidity and load. Under normal circumstances, the service life of the belt is 1000-1500 hours. Excessive wear will cause the belt to slip or break, so it needs to be checked regularly and replaced according to the wear.
Jaw Crusher–Spring
The spring plays a buffering and protective role in the jaw crusher. When the crusher is subjected to excessive load or material jam, the spring will play a protective role to prevent damage to other parts of the crusher. The service life of the crusher spring is long, usually up to 5000-7000 hours. However, if it encounters excessive impact or material jam, the spring may break or deform. It is very important to check the elasticity and integrity of the spring regularly.
Crusher Liner
The liner is used in the crushing chamber of the crusher to prevent the crushing chamber from being worn by the impact of materials. It is usually made of wear-resistant materials, which can reduce the wear inside the crushing chamber and extend the service life of the equipment. The service life of the liner is usually long, depending on the crushed material and the workload. It can generally be used for about 4000 hours, but the wear needs to be checked regularly.
Crusher Flywheel
The flywheel plays the role of energy storage and smooth operation in the jaw crusher. It plays a balancing role in the movement of the movable jaw, helping to reduce vibration and maintain a stable working state. The service life of the flywheel is relatively long, usually more than 5000 hours, but it may be damaged if it encounters abnormal loads or long-term abnormal operation.
As a very important crushing equipment, the life of its wearing parts of the jaw crusher has a huge impact on the working efficiency, stability, crushing quality and other aspects of the crusher. Therefore, in daily use, special attention should be paid to the protection and maintenance of these wearing parts.