Jiaozuo brake

The working principle of the electric hydraulic push rod brake is that this series of hydraulic push rod brakes consists of two parts: a brake frame and a matching yt1 electric hydraulic thruster. When powered on, the electric hydraulic thruster acts, and its push rod quickly rises, and the brake shoe is opened (released) through the action of a lever; When the power is cut off, the push rod of the electric hydraulic thruster rapidly descends under the action of spring force and closes the brake shoe (holding brake) through lever action. Installation and adjustment of the brake: Vertical installation: Loosen nuts 4 and 5 to make the main spring in a free state, loosen nuts 6 and 8, rotate screw 7 to open the brake arm, and then install the brake on the spring base of brake wheel joint 9- spring seat. 10- Horizontal installation of spring frame scale machine: When the brake wheel is already installed between the motor and other components, loosen nuts 4, 5, 6, 7, and 8, turn the screw to remove screws 3 and 7, and lower the brake arm. Install from the side south onto the brake wheel. The adjustment of the working stroke of the actuator ensures that the working stroke of the actuator is ideal as long as the brake shoe has a small backlash. Therefore, it is necessary to adjust its installation height h1. The adjustment method is to loosen nuts 6 and 8 (as shown in the figure), rotate screw 7, and ensure that the installation size of h1 meets the requirements of Table 1. After adjustment, tighten nuts 6 and 8. Loosen the nut 4 for adjusting the braking torque, clamp the square end of the screw, turn the nut 5 to make the square spring seat within the groove of the spring frame, and tighten the nuts 4 and 5 after adjustment. When the brake shoe is opened, adjust bolt 1 to ensure that the back distance on both sides is basically consistent. The nut for fixing the brake shoe (as shown in the figure) should be appropriately tightened in the exterior diagram of YWZ13, so that the brake shoe and brake wheel can be aligned. Regularly check the working condition of the brake during use and maintenance. During the inspection, the following items shall be emphasized: whether the components of the brake can move normally and whether the adjusting nuts are fastened. Whether the components of the thruster are normal and whether the hydraulic oil is sufficient. Is there any oil leakage or seepage. Check if the insulation of the incoming wires is good. The size h1 shall not be less than the small dimensions listed in Table 1. If it exceeds the requirements, it must be adjusted immediately, otherwise the braking effect will be lost. Check whether the brake shoe rests on the brake wheel normally, whether the friction surface is in good condition, and whether there is greasy dirt. When the thickness of the brake pad reaches the values in Table 2, the brake pad should be replaced. The temperature of the brake wheel should not exceed 200 ℃. If cracks are found on the lever and spring, they should be replaced. Chapter 2: Brake Manual (Reference) 1 Introduction 1.1 Project Background and Purpose The popularization of automobiles has been accompanied by an increase in energy consumption, and nowadays, automobiles have become an essential tool in people's daily lives. The electric hydraulic block brake consists of two parts: an electric hydraulic thruster and a block brake frame. It involves mechanical, Fluid mechanics, hydraulic, electromagnetic and other disciplines. Its working principle is to convert the electrical energy of the driving device into mechanical energy, and through the rotation of the impeller, the liquid flow in the cylinder forms a high and low pressure chamber to push the piston upward, thereby transforming the vertical movement into left and right swing of the brake arm through the lever mechanism, and completing the brake release. The main auxiliary function of the product is the automatic equalizing device for backtracking. The technical working principle is to rigidly connect the equidistant device to the brake arm, and maintain the automatic equalizing of backtracking on both sides when the brake arm is opened through the transmission pairs of the left and right connecting plates. The technical research results of this project carried out by our company are at the domestic advanced level, especially in the key technical indicators of temperature rise and rise Fall time. Under the background of energy-efficient efforts, the requirements for energy saving of cars are increasing. The emergence of Compact car just adapts to the development of the times. The displacement is only 2.0. Compared with other types of household cars, Compact car are obviously economical in terms of energy saving and other costs. In order to meet the requirements of the times, the graduation design of Compact car is proposed. It is required to complete the development and design of the braking system on the basis of mutual cooperation among the same group of personnel. The aim is to cultivate the practical work ability to comprehensively apply the learned and basic theoretical knowledge in product system development and design. On the basis of collecting and analyzing relevant data, it is required to reasonably determine the braking mode and system layout scheme of Compact car, design and calculate the strength and fatigue life of main parts, draw system assembly drawings and parts drawings, and prepare design calculation instructions. 1.2 Research status at home and abroad Since the birth of automobiles, vehicle braking systems have played a crucial role in vehicle safety.

The electric hydraulic block brake project involves machinery, Fluid mechanics, hydraulics and other disciplines. The working principle of the YWZ9 electric hydraulic block brake is mainly to convert the electrical energy of the driving device into mechanical energy, and through the rotation of the impeller, the liquid flow in the cylinder forms a high and low pressure chamber to push the piston upward, thereby transforming the vertical movement into left and right swing of the brake arm through the lever mechanism, completing the brake release task. When the driving device is powered off, the mechanism amplifies and transmits the force to the brake shoe through the lever ratio under the action of spring force, completing the holding brake. The main auxiliary function of the product is the automatic equalizing device for backtracking. The technical action principle is to connect the equal backtracking device with the brake arm, and maintain the automatic equalizing of backtracking on both sides when the brake arm is opened through the rotation of the low pair of the left and right connecting plates.

2、 Main features:

Safe and reliable performance, smooth braking, and high action frequency.

Equipped with an interlocking equal distance device, it maintains an equal distance between the two pads during use, avoiding the phenomenon of one brake pad floating against the brake wheel due to uneven distance.

The main swing hinge point of the electric hydraulic block brake is equipped with self-lubricating bearings, which have high transmission efficiency and long service life, and do not require lubrication during use.

The brake spring is arranged inside the spring tube and is equipped with a brake torque scale on one side, making adjustment convenient and intuitive.

The asbestos free brake pad and brake pad adopt a plug-in type, which is safe and reliable, and easy and fast to replace.

Additional devices can be added according to customer requirements, as shown in the Additional Function Table.

Usage conditions: Environmental temperature: -20 ℃~50 ℃. The relative humidity of the air shall not exceed 90%. The surrounding working environment must not contain flammable, explosive, or corrosive gases. The altitude of the location of use complies with GB755-2000. Outdoor rain and snow erosion or corrosive gases and media should be corrosion-resistant products.

3、 Prospects for the Promotion and Application of Electric Hydraulic Block Brakes

The successful development of electric hydraulic block brakes has changed the situation where brake products in China do not have auxiliary performance, greatly improving the overall performance of the machine, reducing the labor intensity of manual installation, adjustment, and maintenance. It is an ideal replacement product for the domestic brake industry. In terms of replacing imports and exporting supporting hosts to earn foreign exchange, the demand for them is also increasing day by day, and the market prospects are broad.