A kind of hydraulic power station flow manual switching device
Technical field
The utility model relates to hydraulic power station technical fields more particularly to a kind of hydraulic power station flow manual switching to fill
It sets.
Background technique
Hydraulic power station is to provide the pumping plant of hydraulic power in hydraulic system, its general uses meets hydraulic system requirement
Hydraulic oil makees medium, is pumped (vane pump, gear pump, drum pump, plunger pump etc.) by motive power (motor or other power) and sent out
The medium for flow and the pressure of meeting the requirements is used for hydraulic system.Hydraulic power station working principle: hydraulic pump pressure is driven by motor
Out hydraulic after pressure reducing valve reduces to operating pressure, is connect by oil outlet with fluid pressure line, is mentioned for the hydraulic cylinder of hydraulic control valve group
For hydraulic driving force, the oil return river rising in Ningxia and flowing into central Shaanxi fluid pressure line of hydraulic cylinder returns to pumping plant oil return opening, and fuel tank is returned after return filter.To mention
The reliability of high hydraulic power unit, hydraulic system use the collocation form that two-shipper electric pump group adds accumulator, and two electromechanical pump groups can be mutual
It is spare, interlocking work, in the case where motor or pump break down, accumulator can continue to provide suitable hydraulic-driven power,
Guarantee the opening and closing of important valve in hydraulic control valve group.
Existing hydraulic power station flow manual switching device is in use in place of Shortcomings, first is that can only be single
A kind of output flow is provided, such as 20L/min or 30L/min, not can be carried out a certain range of adjustment, using being restricted;Two
It is to need out of service when periodically being overhauled to switching device, is unable to on-bne repair.
Utility model content
The purpose of the utility model is to overcome the above-mentioned problems in the prior art, provide a kind of hydraulic power station stream
Measure manual switching device.
To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions:
A kind of hydraulic power station flow manual switching device, input pipe, the second U-tube of band including the first U-tube of band
Efferent duct and the flow control tube between the first U-tube, the second U-tube, first U-tube, the second U-tube are respective
It is connected to respectively with input pipe, efferent duct on the outside of middle part, first U-tube, the respective both ends of the second U-tube pass through flange knot
Structure is fixedly connected with two flow control tubes, and flowmeter is housed on the efferent duct, and two flow control tubes pass through connection
Plate is fixedly connected, and butterfly valve is installed on the flow control tube, manual actuation part is installed on the connecting plate;
The butterfly valve includes disk butterfly plate, valve shaft and driven turntable, and one end of the valve shaft is protruded into flow control tube simultaneously
It is connected, is connected at the bottom center of the other end and driven turntable, the outer peripheral surface of the driven turntable is uniformly distributed with disk butterfly plate
There is tooth socket;
The manual actuation part includes fixed block, drive rod, locking cap, retaining ring, driving handle and drives turntable, described
The upper end of drive rod is fixed with locking cap, and lower end is equipped with positioning ball, and lower end and the connecting plate of the fixed block are fixed, and upper end opens up
There is with positioning ball and drive the locating slot of club shaft cooperation, offers threaded portion, and threaded portion on the outside of the body of rod of the drive rod
Place is bolted with retaining ring, and the perforation with drive rod cooperation is offered at the center of the driving turntable, is equipped with just at bottom center
Double wedge, the double wedge and two sides driven turntable are evenly distributed in the outer peripheral surface of the notch that retaining ring is pressed into, the driving turntable
Tooth socket intermeshing, be fixed with driving handle on the outside of the locking cap;
When the driving handle of the manual actuation part is by can be manually rotated, driving turntable rotates and drives the slave turn of two sides
Disc spins, the disk butterfly when disk butterfly plate below one of driven turntable fully opens, below another driven turntable
Plate completely closes.
Preferably, in above-mentioned hydraulic power station flow manual switching device, the flow control tube, which is equipped with, is convenient for valve shaft
The positioning sleeve of insertion, the positioning sleeve are welded as a whole with flow control tube, and between the positioning sleeve and valve shaft, it is close to be plugged with rotation
Seal.
Preferably, in above-mentioned hydraulic power station flow manual switching device, the input pipe is with the first U-tube thereon
Integral structure, the efferent duct are structure as a whole with the second U-tube thereon.
Preferably, in above-mentioned hydraulic power station flow manual switching device, the upper end of the drive rod is by welding and admittedly
Determine cap to fix, the positioning bulb diameter of lower end is greater than external diameter of rod body.
Preferably, in above-mentioned hydraulic power station flow manual switching device, the outer diameter of the locking cap is greater than driving turntable
Penetration hole diameter.
Preferably, in above-mentioned hydraulic power station flow manual switching device, the caliber of the flow control tube is 600~
700mm。
The beneficial effects of the utility model are:
The utility model controls the opening and closing of butterfly valve 8 on two flow control tubes by setting manual actuation part, on the one hand
When the rotation of manual actuation part, the opening and closing degree of two butterfly valves changes, and then realizes the adjustment of flow in certain amplitude, adjustment
When suitable opening and closing degree is determined according to the display numerical value of flowmeter;On the other hand when needing to overhaul, using manual actuation
Part alternately completely closes a butterfly valve, another butterfly valve fully opens, and realizes on-line maintenance.
Certainly, implement any product of the utility model it is not absolutely required to and meanwhile reach above all advantages.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the structural schematic diagram of butterfly valve, manual actuation part in the utility model;
In attached drawing, parts list represented by the reference numerals are as follows:
1- input pipe, the first U-tube of 2-, 3- efferent duct, the second U-tube of 4-, 5- flowmeter, 6- flow control tube, 7- connect
Fishplate bar, 8- butterfly valve, 801- disk butterfly plate, 802- valve shaft, 803- driven turntable, 804- tooth socket, 9- actuator, 901- fixed block,
902- drive rod, 903- locking cap, the threaded portion 904-, 905- retaining ring, 906- drive turntable, 907- double wedge, and 908- drives handle
Hand.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
It please refers to shown in Fig. 1-2, the present embodiment is a kind of hydraulic power station flow manual switching device, and device includes band the
The input pipe 1 of one U-tube 2, the efferent duct 3 of the second U-tube of band 4 and the flow between the first U-tube 2, the second U-tube 4
Control pipe 6.First U-tube 2, the second U-tube 4 are connected to input pipe 1, efferent duct 3 respectively on the outside of respective middle part.First is U-shaped
Pipe 2, the respective both ends of the second U-tube 4 are fixedly connected by flange arrangement with two flow control tubes 6.It is equipped on efferent duct 3
Flowmeter 5.Two flow control tubes 6 are fixedly connected by connecting plate 7, are installed with butterfly valve 8 on flow control tube, on connecting plate 7
It is installed with manual actuation part 9.The design feature that butterfly valve 8, manual actuation part 9 are preferably shown in attached drawing 2, to connecting plate 7
It is simplified in terms of structure especially length.
Butterfly valve 8 includes disk butterfly plate 801, valve shaft 802 and driven turntable 803, and flow control tube is protruded into one end of valve shaft 802
It is connected in 6 and with disk butterfly plate 801, is connected at the bottom center of the other end and driven turntable 803, the periphery of driven turntable 803
Face is evenly distributed with tooth socket 804, and the external port of tooth socket 804 is in rectangle, carries out chamfered at rectangular edges.
Manual actuation part 9 includes fixed block 901, drive rod 902, locking cap 903, retaining ring 905, driving 908 and of handle
Drive turntable 906.The upper end of drive rod 902 is fixed with locking cap 903, and lower end is equipped with positioning ball.The lower end of fixed block 901 and company
Fishplate bar 7 is fixed, and upper end offers the locating slot with positioning ball and the cooperation of 902 body of rod of drive rod.It is opened on the outside of the body of rod of drive rod 902
Equipped with threaded portion 904, and retaining ring 905 is bolted at threaded portion 904.It drives and is offered and drive rod at the center of turntable 906
The perforation of 902 cooperations, place, bottom center, which is equipped with, is convenient for the notch that is pressed into of retaining ring 905.The outer peripheral surface of driving turntable 906 uniformly divides
It is furnished with double wedge 907, the intermeshing of tooth socket 804 of double wedge 907 and two sides driven turntable 803, double wedge 907 is in rectangular plate-like structure.
Flow control tube 6 is equipped with the positioning sleeve being inserted into convenient for valve shaft 802.Input pipe 1 is with the first U-tube 2 thereon
Integral structure, efferent duct 3 are structure as a whole with the second U-tube 4 thereon.The upper end of drive rod 902 passes through welding and locking cap
903 is fixed, and the positioning bulb diameter of lower end is greater than external diameter of rod body.The perforation that the outer diameter of locking cap 903 is greater than driving turntable 906 is straight
Diameter.The caliber of flow control tube 6 is 600~700mm.
The outside of locking cap 903 is fixed with driving handle 908, when driving handle 908 by can be manually rotated, drives turntable
906 rotate and the driven turntable 803 of two sides are driven to rotate.When the disk butterfly plate 801 of one of 803 lower section of driven turntable is complete
When unlatching, the disk butterfly plate 801 of another 803 lower section of driven turntable is completely closed.
One concrete application of the present embodiment are as follows: the utility model controls two flows by setting manual actuation part 9
The opening and closing of butterfly valve 8 on pipe 6 is controlled, on the one hand when manual actuation part 9 rotates, the opening and closing degree of two butterfly valves 8 changes, in turn
Realize the adjustment of flow in certain amplitude, when adjustment determines suitable opening and closing degree according to the display numerical value of flowmeter 5;Another party
Face alternately completely closes a butterfly valve 8 when needing to overhaul, using manual actuation part 9, another butterfly valve 8 fully opens,
Realize on-line maintenance.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.