Power system of shearing machine of wirecord fabric cutting machine

Abstract

The utility model discloses a shearing machine power system of a wirecord fabric cutting machine, which comprises a transmission mechanism, and the transmission mechanism comprises a general speed reducer with a left output shaft I and a right output shaft I. The general speed reducer is arranged between a left crank connecting rod mechanism and a right crank connecting rod mechanism of the shearing machine. Output shafts I of the universal speed reducer are connected with crankshafts of the corresponding crank-link mechanisms through couplings; the universal speed reducer is driven by a servo motor, and a rotating shaft of the servo motor is directly connected with an input shaft of the universal speed reducer. All functions of a traditional power device are achieved through the mode of the servo motor and the universal speed reducer, and the power device is safer, more reliable and more efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tire production line equipment, concretely is a steel cord cutting machine shear bed power system. BACKGROUND

[0002] The steel cord cutting machine shear bed is the key equipment of the radial tire production, and the power device of the shear bed is the power source of the shear bed, and stable work of the power device is the guarantee that the production line can normally operate.

[0003] The traditional shear bed power device includes an ordinary alternating current motor, a flywheel, a special speed reducer with a built-in hydraulic clutch and a hydraulic station, and the following problems exist in the operation process of the traditional shear bed power device:

[0004] 1. Complex structure and redundancy. The device has many structure links and components, and the installation and control precision are difficult to guarantee.

[0005] 2. High machining precision requirement. In order to continuously and stably output kinetic energy, the system must be equipped with a high-speed flywheel, and the machining, dynamic balance and installation precision of the flywheel are very high, so as to guarantee the stable operation of the flywheel, otherwise it will be a disaster to the system.

[0006] 3. Slow action response. The start and stop of the system are realized by controlling the engagement and disengagement of the clutch through the reversing valve of the hydraulic system, and the size and length of the oil way will affect the speed of the action response; if the oil is supplied too fast, the clutch will respond fast and impact will be large, which will cause great vibration of the equipment; if the oil is supplied too slowly, the clutch will be abnormally engaged and cannot normally transmit power; all these are not the normal working state of the equipment, and how to balance the relationship between the two is also a control difficulty.

[0007] 4. Poor control precision of the shear bed beam position and troublesome adjustment. The accurate fixing of the start and stop positions of the beam is one of the key factors for the normal work of the shear bed, and the position and response of the detection switch and the working state of the hydraulic station will all affect the precision.

[0008] 5. Large manufacturing and maintenance difficulty. Since the clutch needs to be built into the speed reducer to work together, a suitable speed reducer needs to be specially manufactured for normal use, and if the speed reducer has a big problem, there is no corresponding standard speed reducer to replace, and only the factory can be repaired; in addition, after the equipment is used for several years, the clutch friction plate is worn out, and the replacement of the clutch is also a troublesome thing.

[0009] 6. The work area is prone to oil contamination. The clutch requires stable oil pressure, and the gears in the reducer also require good lubrication. This requires stable oil quality, and the temperature and impurities need to be controlled within a certain range. Therefore, filters, coolers, and other devices need to be added to the oil circuit. The increase in connection points will inevitably increase the risk of oil leakage. At the same time, in order to ensure the good working condition of the power system, the hydraulic oil and filters must be replaced regularly, which increases the maintenance work.

[0010] 7. High energy consumption and waste. As soon as the production line starts, the power system must be turned on and run continuously, always in a standby state, resulting in low energy utilization. Utility Model Content

[0011] To address the shortcomings of existing technologies, this utility model proposes a power system for the shear bed of a steel wire cord cutting machine that stabilizes equipment operation, reduces maintenance, and improves efficiency.

[0012] The power system for the shearing bed of the steel wire cord cutting machine, which can solve the problems of existing technologies, includes a transmission mechanism, but the difference is:

[0013] 1. The transmission mechanism includes a general-purpose reducer with left and right dual output shafts I. The general-purpose reducer is located between the left and right crank-connecting rod mechanisms of the shearing machine. Each output shaft I of the general-purpose reducer is connected to the crankshaft of the corresponding crank-connecting rod mechanism through a coupling.

[0014] 2. The universal reducer is driven by a servo motor, and the shaft of the servo motor is directly connected to the input shaft of the universal reducer.

[0015] The beneficial effects of this utility model are:

[0016] 1. The power system of the steel wire cord cutting machine adopts a new structure of servo motor + general reducer to realize all the functions of traditional power devices, and is safer, more reliable and more efficient.

[0017] 2. This utility model overturns the traditional structure, makes full use of the inherent characteristics of servo motors, and constructs a simple but more efficient system structure, making it more socially beneficial. Attached Figure Description

[0018] Figure 1 This is a simplified structural diagram of a traditional power system.

[0019] Figure 2 This is a simplified structural diagram of one embodiment of the present invention.

[0020] Figure number mark: 1, general speed reducer; 1-1, output shaft I; 2, shaft coupling; 3, crankshaft; 4, servo motor; 5, hydraulic clutch; 6, special speed reducer; 6-1, output shaft II; 7, ordinary AC motor; 8, flywheel; 9, hydraulic station; 10, filter; 11, cooler. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be further explained in connection with the embodiment shown in the drawings.

[0022] As Figure 1 shown is a structure diagram of the traditional power system of the steel cord fabric cutting machine shear, the transmission mechanism of the power system comprises a special speed reducer 6 with a hydraulic clutch 5 built-in, the special speed reducer 6 has left and right double output shafts II 6-1, the special speed reducer 6 is arranged between the crank link mechanisms on the left and right of the shear, and each output shaft II 6-1 of the special speed reducer 6 is connected with the crankshaft 3 of the corresponding crank link mechanism through the shaft coupling 2; the drive of the special speed reducer 6 is an ordinary AC motor 7, the ordinary AC motor 7 is connected with the input shaft of the special speed reducer 6 through the flywheel 8; the hydraulic station 9 is arranged corresponding to the hydraulic clutch 5, and the filter 10 and the cooler 11 are arranged on the hydraulic pipeline in communication with the hydraulic clutch 5.

[0023] As Figure 2 shown is a structure diagram of the traditional power system of the steel cord fabric cutting machine shear, the transmission mechanism of the power system comprises a special speed reducer 6 with a hydraulic clutch 5 built-in, the special speed reducer 6 has left and right double output shafts II 6-1, the special speed reducer 6 is arranged between the crank link mechanisms on the left and right of the shear, and each output shaft II 6-1 of the special speed reducer 6 is connected with the crankshaft 3 of the corresponding crank link mechanism through the shaft coupling 2; the drive of the special speed reducer 6 is an ordinary AC motor 7, the ordinary AC motor 7 is connected with the input shaft of the special speed reducer 6 through the flywheel 8; the hydraulic station 9 is arranged corresponding to the hydraulic clutch 5, and the filter 10 and the cooler 11 are arranged on the hydraulic pipeline in communication with the hydraulic clutch 5.

[0024] The utility model can realize the power input demand of the shear through the servo motor 4+general speed reducer 1, and the characteristics are as follows:

[0025] 1, the servo motor 4 has high precision and high stability, can realize very accurate positioning and movement, by utilizing this characteristic, the shear can save many peripheral detection switches, the positioning is more accurate, and through the change program, the horizontal beam start-stop position can be easily adjusted, so that the equipment debugging becomes simple, convenient and efficient.

[0026] 2, the servo motor 4 has smooth torque output, can realize higher load capacity, by utilizing this characteristic, the shear power system can save the flywheel 8, hydraulic clutch 5, filter 10, cooler 11, hydraulic station 9 and other supporting components, so that the whole system is more simple, processing is convenient and simple, and the trouble of oil pollution in the work site is also saved, and the maintenance is more convenient.

[0027] 3、Servo motor 4 has the characteristics of fast response speed, high efficiency and low energy consumption, and the efficiency can be as high as 90% or more during operation. It starts and stops immediately without running on standby at all times, so it can significantly reduce energy waste and increase economic benefits.

[0028] 4、The interchangeability of the special reducer 6 of the general speed reducer 1 is stronger, and the maintenance and repair is more convenient.

[0029] In summary, in the structure of the utility model, the new structure of servo motor 4+general speed reducer 1 replaces the traditional structure of ordinary AC motor+flywheel+special reducer 6+hydraulic station 9 of the traditional power system, servo motor 4 is used as an executing element in the automatic control system, which can convert electrical signals into angular displacement or angular velocity output, has high control accuracy and fast response ability; the general speed reducer 1 replaces the special reducer 6, which can realize the interchangeability of the transmission components, reduce the risk of long-time shutdown of the production line caused by the special reducer 6 failure, improve the equipment startup rate, and thus realize economic benefits.

Claims

1. Steel cord cutting machine shear power system, comprising a transmission mechanism, characterized in that: the transmission mechanism comprises a universal speed reducer (1) with left and right double output shafts (1-1), the universal speed reducer (1) is arranged between the left and right crank connecting rod mechanisms of the shear, and each output shaft (1-1) of the universal speed reducer (1) is connected with a crankshaft (3) of the corresponding crank connecting rod mechanism through a shaft coupling (2); the drive of the universal speed reducer (1) is a servo motor (4), and the rotating shaft of the servo motor (4) is directly connected with the input shaft of the universal speed reducer (1).

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