A kind of constant pressure hydrostatic guideway restrictor
Technical field
The present invention relates to the auxiliary equipment of slide block type hydrostatic slideway, especially flow controller is combined with a kind of constant-pressure type hydrostatic slideway
It is relevant.
Background technology
Traditional hydrostatic slideway flow controller is all scattered installation, and flow controller and pressure oil cavity are distant, is influenceed quiet
Press stability.Flow controller is one of key technology of constant-pressure type hydrostatic slideway, and the key technology of flow controller can not break through, and static pressure is steady
It is qualitative to be difficult to realize, it can not just meet seriation, the standardisation requirements of constant-pressure type hydrostatic slideway.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of constant-pressure type hydrostatic slideway section that can guarantee that static pressure stability
Flow device, be hydrostatic slideway seriation, standardization realization create conditions.
To solve the above problems, be provided with throttle block of the invention in four throttle orifices, each throttle orifice has two respectively
Flow regulator pieces, i.e., focus on multiple flow regulator pieces in one throttle block, install concentratedly, enhance the stability of static pressure, reduce
Volume, it is that throttle block creates condition close to pressure oil cavity as far as possible.
Base plate, flow regulator pieces, pad are respectively charged into the throttle orifice, is tightened, is then entered with plug screw with a point oily trip bolt
Row sealing, it is ensured that oil will not leak pollution environment, impurity will not also enter contaminated oil in throttle orifice and influence guide rail performance and oil
Service life.
The flow controller is provided with two fuel feed holes and four oil-outs, and fuel feed hole is connected with oil-feed hydraulic tube, it is ensured that pressure
Oil smoothly enters throttle block, and oil-out is connected with static pressure pressure oil cavity respectively, it is ensured that the pressure oil after throttling enters hydrostatic slideway
Pressure oil cavity.
The flow controller profile of constant-pressure type hydrostatic slideway is consistent with the sliding block of hydrostatic guide rail, it is ensured that with slide block type hydrostatic slideway
Match.
The present invention can use disk crevice throttle piece or orifice restriction piece two ways, expand application.
Brief description of the drawings:
Fig. 1 is the sectional view of the present invention.
Fig. 2 is the sectional view of flow regulator pieces of the present invention.
Fig. 3 is the front view of the present invention.
Fig. 4 is the present invention and hydrostatic slideway sliding block scheme of installation.
Fig. 5 is flow regulator pieces schematic diagram of the present invention.
Embodiment
The specific implementation to the present invention is described in detail below in conjunction with the accompanying drawings.
As Figure 1-3, it is provided with throttle block 1 in four throttle orifices 2,3,4,5, throttle orifice and is respectively provided with two sections successively
Flow 11 a, base plate 12, two pads 13 are tightened with a point oily trip bolt 14, then sealed with plug screw 15 so that many
Individual flow regulator pieces are focused in a throttle block.
Fuel feed hole 6 in throttle block 1 is connected with oil-feed fluid pressure line, four oil-outs 7,8,9,10 respectively with static pressure pressure
Oil pocket is connected, and the pressure oil of oil supply system enters throttle orifice 2,3,4,5 from fuel feed hole 6, pressure oil is produced pressure drop, is reached design
The requirement (Throttling ratio=charge oil pressure/oil pocket pressure) of Throttling ratio, is flowed into by the pressure oil of flow controller from oil-out 7,8,9,10
The pressure oil cavity formation static pressure of sliding block is supported.To ensure that pressure oil enters throttle block, the oil circuit pipe joint on fuel feed hole 6 is built-in,
Fuel feed hole is set to be connected with oil-feed fluid pressure line.
The guide rail 16 of present invention soket head cap screw and hydrostatic slideway as shown in Figure 4 tightens composition constant-pressure type hydrostatic slideway.