Realized by a brake pad pressed on the brake braking the brake wheel

Realized by a brake pad pressed on the brake braking the brake wheel. Single axle braking pressure to the brake block and uneven, it is usually more than offset by a pair of brake pads, the pressure on the brake axle suffered brake pad.
Outside hold block brake: it operated device according to the length of the trip is divided into short stroke and long stroke block brake block brake block brake short trip magnet mounted directly on the brake arm. When working around moving core pin rotation to achieve loose brake; tight against the main spring brake when the magnet energized. This brake structure compact, tight and loose brake brake fast action, but the impact force. Long stroke brake block brake lever system can produce large loose brake force, but slow braking action, suitable for large brakes. Within Zhang block brake: Brake blocks located inside the brake wheel through pedal, the brake lever and bumps block open, pressing the inner surface of the brake drum and brake application, the brake pedal is released back to the spring block The brake release. This brake can also be used, such as hydraulic valve or pneumatic operation. Zhang style within a compact block brake structure, dust, and can be used to install space-constrained applications, a wide variety of vehicles.

Hydraulic Manifold occupy a larger market share

Hydraulic Manifold occupy a larger market share
Hydraulic increasingly fierce market competition, capacity oversupply, high raw material prices have squeezed profit margins industry is extremely narrow, and users will be more concerned about the overall cost of products, poor quality, not high-tech products have not to meet the growing needs of the user, if the hydraulic blocks circuit block competition at only a low level of competition in the primary level, the enterprise market is bound to be ruthlessly eliminated. But so far, most of HMB companies seeking market share in the most direct and most effective way of construction machinery industry price war. In today's competitive market situation, in addition to the competition in terms of product quality, reliability and service, the contest of intangible assets is another invisible war. Brand to stand the market of training, in order to enjoy a high reputation in the minds of users. hydraulic testing machine system design industry price war weapon to deal with is the value of marketing, the product value, service value and brand value for a triple. Implementation of leading technology development strategy, always emphasizing technological innovation and product development in the company's development strategy primacy of. Through innovative product differentiation, reformate value, get rid of the price of product homogeneity caused
Competition, we should focus on providing customers with a full range of services in a timely manner, by increasing the value-added products and services, has introduced a hydraulic circuit block new technology, new products, new technologies and new services to attract a wider customer, and constantly develop new markets, only so can only get rid of a few years wandering margins and
Downward trend in performance.

Hydraulic components and systems solutions to the problem of leakage

Hydraulic components and systems solutions to the problem of leakage
There are the main method to solve the problem of leakage of hydraulic components and systems of "blocking", "lead", "anti" and "use" four ways. Blocking the way, on the site of leakage and fixed the leak is very effective, as in the leaking part coated sealant. Guided approach is mainly within the conductivity method, such as hydraulic couplers block baffle plate, drain line, so that the leak oil tank. Anti-catch approach primarily designed, radical leak. Seals using both blocking, anti-two effects, so to design hydraulic power units and hydraulic systems must understand the sealing technology. For example, a gap seal of the Department, it is not necessary to use the contact seal structure. The leak is to use the method for the benefit of victims turn, is an important research topic, such as such as hydrostatic guides and bearings. Leakage from the formula and technical design perspective and field observation, the main reason for the gap caused by the leakage control issues, problems and hydraulic cartridge valves shock temperature heat problems, the main leak case study provides us with a specific method to solve the leakage problem.

If an empty load or light load heavy steering light and heavy steering

If an empty load or light load heavy steering light and heavy steering, it may be less than the pressure relief valve block working pressure or relief valve core is stuck dirt or spring failure or damage caused by seals. First, adjust the pressure relief valve should work when adjusting invalid decomposition cleaning relief, such as spring failure, damaged seals should be replaced. 4) If you turn the steering wheel does not move when you move when the hydraulic cutting machine cylinder and the issue of irregular sound, it might be steering system with air or hydraulic steering cylinder leakage caused by too much. Should open the tank lid to see if there is a bubble in the tank, if the first check whether the leak at the suction tank, and then check the piping connections are intact, and the exclusion of air from the system. Such as hydraulic cylinders move when the time is still not moving the piston seal status should check and replace the seal if necessary.
Stacking manifold way hydraulic valve systems integration approach with a variety of specially designed according to the requirements of ordinary plate connected system stacked together, collectively referred to as the superposition of HMB integration technology. This way to integrate a hydraulic system, which can be seen superimposed valves, valve and connection block plate connected components. Superimposed valve in the hydraulic circuit block, named because of its structure and shape, as the name suggests it is a hydraulic valve can be stacked with each other, and to adapt to this integrated approach is specifically designed. Rather, stacking valve is connected to a hydraulic coupling valve superimposed manner. It is a new type of hydraulic components developed in the hydraulic valve plate connected to an integrated basis. Which itself contains from 1 to 2 separate valve, its internal structure and general hydraulic valve similar. The valve between the upper and lower surfaces of the joint surface, the valve surface in both imports and exports, respectively. In addition, there is only for internal valve connector channel. Therefore, both acts superposition of hydraulic valves, valve underway between the role of a valve in the connecting passage.

the development of hydraulic technology

With the development of hydraulic technology, engineering machinery hydraulic drive system has been very common. From a technical point of view, any kind of hydraulic drive system should meet the reusable hydraulic hose fittings design, simple structure, easy to use, high efficiency requirements. The quality of the hydraulic system of a direct impact on the performance of the pros and cons of construction machinery, paper, hydraulic steering system uses a common Troubleshooting talk about some understanding and practices. Hydraulic steering system steering heavy one) if fast forward or turn the steering wheel are heavy and slow turn without pressure, it may be the tank level is low, the oil viscosity is too high or the valve body check valve failure. First check the viscosity of the oil tank and hydraulic oil. If the oil level is lower than the standard height of hydraulic oil is added, it should be replaced as much oil viscosity hydraulik monoblock oil viscosity is appropriate, such as the viscosity of the oil level should be decomposed normal steering. If you lose the ball check valve body into the new ball, if the ball should be cleaned of dirt stuck, if the one-way valve seal with the ball and the ball is bad impact of the application, so that reliable sealing.

Hydraulic valve stent, the working environment

Hydraulic valve stent, the working environment is very bad. In the coal face, the total length of over 1000 meters tubing, 1 bsp fittings socket up to more than 4000, no special dust tank facilities. Emulsion in a large number of floating impurities in the column Bottom and valve chamber, leaving more coal, grain and iron rock. Inlet valve and seat, due to open and close more frequently, liquid flow rate is high, the seal will soon fail. Practice has proved that reduce contaminants hydraulic system fluid, it is very difficult, it was once envisaged in the emulsion pump high pressure filter, while increasing small filters on each stand at the entrance. But soon be blocked at work, forming a stop.
On the other hand, with the development of technology. The use of performance and service life of the valve valve put forward higher requirements. Currently, under the conditions when provided with a 120 mesh filter and a magnetic filter device, by using the test valve is opening and closing times of the total flow of the emulsion and the valve, to measure the life of the hydraulic valve. But in fact the actual downhole indoor type test results of the work vary greatly. Many countries are now in the form of experiments, an increase of anti-pollution requirements, or the incorporation of appropriate pulverized in emulsion, some added mechanical impurities. To do this, you need to use the new, anti-pollution and strong, suitable for underground working conditions manifold seal pair.

cold and hot water piping systems Plastic Testing Machine

Plastics piping systems for hot and cold water test machine for hot and cold water with a variety of plastic pipes and fittings (PP, PEX, PVC-C, PB), according to the requirements of assembly and withstand a certain pressure at a temperature after the number of alternating Check pipes and fittings for leaks, the instrument is mainly used for hydraulic hose and fittings pipe fittings after assembly system tests. Hot and cold water systems for thermoplastic pipe fittings system test requirements. Test device using foreign advanced pressure control device for controlling, preventing the pressure fluctuations with temperature and time, the test pressure circulation pump imported from abroad provided to ensure that the pressure of the long-term effectiveness. Temperature conditions under which detection device automatically opens the appropriate return valve, reduce energy consumption, reduce the cost of test. Instrument with a special device greatly eliminates piping noise, are imported refrigeration equipment, power consumption, cooling capacity; reliable security guards and comprehensive level measurement devices to ensure that the high and low liquid level in the tank, When the test fails, the pipeline has ruptured, the time of shutdown; personnel can effectively protect against experimental tests and easy to observe the process of product design fully simulate the real product practical application scenarios, design ideas unique in the country.
) Pressure control range: 0.4MPa ~ 1.0MPa can be arbitrarily set
2) Pressure control precision: the set value ± 0.05MPa (alternating hot and cold water when no water hammer phenomenon)
3) Hot and cold water alternating time: less than 1 minute
4) Hot and cold water, each cycle: 15 minutes
5) cycles: 1 ~ 10000 arbitrarily set between.
6) Temperature indication error: 0.5 ℃
7) thermostatic bath temperature uniformity: ≤ ± 1 ℃
8) Temperature control range: Cold water: 15 ℃ ~ Hot water temperature: room temperature ~ 95 ℃
9) the applicable maximum diameter: Ф63
10) Test Station number: 6 channels (12 channels to be special orders)
11) Power supply: 380VAC/220VAC mix
12) Standard Rated Power: 25kW
13) Instrument Size: 5550mm × 2800mm × 1800mm
14) Instrument Installation size: 8000mm × 7000mm × 1800mm