Gearbox gearshift oil cylinder device
A technology for shifting cylinders and gearboxes, which is applied in the field of cylinder devices for controlling gear positions of gearboxes, can solve the problems of complex mechanical structure, high manufacturing cost, and large space occupation, and achieve simple mechanical structure, low manufacturing cost, and The effect of taking up little space
Active Publication Date: 2014-08-06
SHENJI GRP KUNMING MACHINE TOOL
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Problems solved by technology
The entire shifting part requires three shafts and two oil cylinders, the mechanical structure is more complex, it takes up a lot of space, the manufacturing cost is high, and the reliability is low
Method used
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Embodiment Construction
[0021] Such as figure 1 with Figure 7 As shown, the gear shift cylinder device of the present invention comprises: a main cylinder 1 having an annular flange 101 at both ends of the main cylinder 1; the left auxiliary cylinder 3 and the right auxiliary cylinder 4 pass through the left two-way connecting cover 5 and the right respectively. The two-way connection cover 6 is connected with the main oil cylinder 1, and their interior forms a cavity 102; the side of the left auxiliary oil cylinder 3 and the right end auxiliary oil cylinder 4 that are not connected to the two-way connection cover has openings 301, 401, and the cylinder body at the opening is bent inward. Fold to form the limiting part 302,402. In this way, the diameter of the opening is smaller than the bore diameter of the auxiliary oil cylinder;
[0022] The double-extended piston rod 2 passes through the left two-way connection cover 5 and the right two-way connection cover 6 and is arranged in the cavity 102 ...
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The invention discloses a gearbox gearshift oil cylinder device. The gearbox gearshift oil cylinder device comprises an oil cylinder and a double-stretching piston rod (2). Openings are formed in the two ends of the oil cylinder, the double-stretching piston rod (2) stretches out of the openings in the two ends of the oil cylinder, and one end of the double-stretching piston rod (2) is fixedly connected with a shifting fork (8). The oil cylinder is provided with a first oil port (P1), a second oil port (P2), a third oil port (P3) and a fourth oil port (P4), the double-stretching piston rod (2) is provided with a main piston (201), a left end auxiliary piston (12) and a right end auxiliary piston (13), and the four oil ports and the three pistons are arranged alternately. Only one double-stretching piston rod is needed for driving a set of sliding gears, four-gear speed change can be achieved with one shaft, and the gearbox gearshift oil cylinder device is simple in mechanical structure, small in occupied space and low in manufacturing cost. Through real-time control of a numerical control system of a lathe, it is guaranteed that a main gearbox achieves the four-gear automatic speed change function, and gears can be shifted accurately, reliably and safely.
Description
technical field [0001] The invention relates to a gearbox device of a machine tool, in particular to an oil cylinder device for controlling gear positions of the gearbox. Background technique [0002] In recent years, the requirements of high-end CNC boring and milling machines for the main drive system are mainly high power, high torque, high speed, wide range stepless speed regulation, etc. In order to achieve these requirements, the spindle box of the CNC milling and boring machine generally needs to be equipped with an automatic transmission device with two to four gears. In the case of constant power of the main motor, as the number of gears increases, it is easier for the spindle to achieve high torque and wide speed range, so as to ensure that a reasonable cutting amount is selected during processing, so as to obtain the best productivity, processing accuracy and surface. quality. [0003] In the main gearbox of the four-speed variable speed of the boring and millin...
Claims
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IPC IPC(8): F16H61/30F16H61/40F16H61/68
CPCB23Q5/048F16H61/0204F16H61/30
Inventor 王全宝杨甫武记超马文俊徐贵善李军张力余光怀
Owner SHENJI GRP KUNMING MACHINE TOOL