Water cutting machine and jet generating apparatus thereof
Technical field
The present invention relates to a kind of water cutting machine and jet generating apparatus thereof, especially a kind of super-flow high-pressure water cutting machine and jet generating apparatus thereof.
Background technology
Existing water cutting machine is provided with the jet generating apparatus, and existing ultra-high pressure water fluid jet generating apparatus mainly is divided into two kinds of two plunger high-pressure water shot stream generating apparatus and three plunger high-pressure water shot stream generating apparatus.
Two plunger high-pressure water shot stream generating apparatus are shown in Fig. 7 A; Its operation principle is to adopt hydraulic system to promote two plunger rods in two hydraulic cylinders, to do straight reciprocating motion respectively; Water is compressed the back have only the nozzle of 0.22-0.35mm to penetrate, thereby produce the water jet of a high-speed motion through a diameter.
The performance indications of this two plungers high-pressure water shot stream generating apparatus are following: power of motor: 37Kw; Plunger rod diameter: 22.2mm; Plunger rod stroke: 102mm; Plunger rod moves back and forth number of times: 50 times min; Flow: 3.7 liters min; Maximum pressure: 55000psi.And the fluctuation of the jet pressure of this two plungers high-pressure water shot stream generating apparatus is higher than 30%, and efficient is very low.
Still all adopt hydraulic system to drive two plunger high-pressure water shot stream generating apparatus more than 95% in the world at present at the high-pressure water cutting machine that uses.Because two plunger high-pressure water shot stream generating apparatus will reach the flow of 3 liters of pressure and the per minutes of 55000psi, must adopt the motor more than the power 30kw to drive powerful jet generating apparatus, energy consumption is very high.Reach more than 100,000 according to conservative water cutting machine quantity of adding up this two plunger high-pressure water shot stream generating apparatus that using in the whole world, China has just accounted for the wherein quantity more than 1/2nd, and therefore the waste of this energy is huge.The water under high pressure pressure oscillation that simultaneously this two plunger high-pressure water shot stream generating apparatus produce is very big, need regulate the pressure oscillation of water under high pressure through high pressure accumulator, and the casualty accident of high pressure accumulator blast often takes place, and potential safety hazard is very serious.
Three plunger high-pressure water shot stream generating apparatus its operation principle shown in Fig. 7 B is to adopt the motor direct-drive crankshaft connecting rod system, makes three plunger rods in three hydraulic cylinders, do straight reciprocating motion respectively.After three plunger rods compress water at atmospheric pressure, have only the nozzle of 0.26-0.35mm to penetrate through a diameter, thereby produce the water jet of a high-speed motion, three plunger high-pressure water shot stream generating apparatus claim direct-drive type three plunger high-pressure water shot stream generating apparatus again.
The performance indications of this three plunger high-pressure water shot stream generating apparatus are following: power of motor: 22Kw; Plunger rod diameter: 8mm; Plunger rod stroke: 40mm; Plunger rod move back and forth number of times 750 times min; Flow: 3.7 liters min; Maximum pressure: 55000psi.The high-pressure water jet pressure oscillation 5% of these crank type three plunger high-pressure water shot stream generating apparatus, but jet flow is less, be confined to 3.7 liters in, efficient improves about 40% than two plunger high-pressure water shot stream generating apparatus.
Hence one can see that, and the operating efficiency of direct-drive type three plunger high-pressure water shot stream generating apparatus and energy consumption all are superior to two plunger high-pressure water shot stream generating apparatus.But the volume ratio of existing direct-drive type three plunger high-pressure water shot stream generating apparatus is less; Very thin (diameter 8mm) stroke very short (40mm) of plunger rod; Flow for 3.7 liters of the pressure that reaches 55000psi and per minutes; The reciprocating number of times of plunger rod must reach per minute 750 times, and therefore, the material requirements of hardness, abrasion resistance and the high-pressure seal ring above the plunger rod of direct-drive type three plunger high-pressure water shot stream generating apparatus coupled columns stopper rods is very high; Manufacture difficulty is big, and equipment uses, maintenance cost is higher.
Summary of the invention
In order to make the jet generating apparatus have bigger flow and high pressure more; Meanwhile again can be significantly energy-conservation, the invention provides a kind of significantly energy-conservation big flow ultra-high pressure water fluid jet generating apparatus and super-pressure super-flow water cutting machine with this jet generating apparatus.
For realizing this purpose, the invention provides a kind of jet generating apparatus, it comprises: frame; Drive unit, it is arranged on the frame; The acting wheel, it is arranged on the frame and rotation under the driving of drive unit; And pressurizing pack; Wherein, this pressurizing pack comprises rocking arm, connecting rod, push rod and supercharging part; Rocking arm is arranged on the acting wheel and upward and with acting takes turns rotation, and it is through connecting rod drive pushrod movement, and this push rod links to each other with the plunger rod of supercharging part, with the motion of drive plunger rod; This plenum branch is provided with delivery outlet, is used to export jet.
Preferably, this pressurizing pack also comprises line slideway, and this line slideway is arranged on the frame, so that push rod is done linear reciprocating motion along this line slideway.
Preferably; This jet generating apparatus also comprises driving wheel, drive and driven pulley; Driving wheel is arranged on the frame and by drive unit and drives down rotation; Drive and driven pulley are provided with on the driving wheel and with driving wheel and rotate around first power transmission shaft, rotate around second power transmission shaft in order to drive the acting wheel; This drive unit comprises motor and decelerator; This pressurizing pack also comprises the acting lever, and this acting lever one end is connected an end of this connecting rod, and the other end of this acting lever is hinged on the frame, and push rod one end is arranged on this acting lever, and the other end of this connecting rod is connected on the rocking arm.
Preferably; This plenum branch comprises left pressurized cylinder and right pressurized cylinder; And plunger rod comprises left plunger rod and right plunger rod, and this left side plunger rod and right plunger rod are separately positioned in left pressurized cylinder and the right pressurized cylinder, and all links to each other with push rod; With with pushrod movement, realize the supercharging of left pressurized cylinder and right pressurized cylinder.
Preferably, this jet generating apparatus is provided with three groups of said pressurizing packs, and these three groups of said pressurizing packs comprise first group of pressurizing pack, second group of pressurizing pack and the 3rd group of pressurizing pack; This first group of pressurizing pack comprises first rocking arm, first connecting rod, first push rod and the first supercharging part; First rocking arm is arranged on the acting wheel and upward and with acting takes turns rotation, and it is through first connecting rod drive pushrod movement, and this first push rod links to each other with first plunger rod of first supercharging part, moves to drive first plunger rod; This first plenum branch is provided with delivery outlet, is used to export jet; This second group of pressurizing pack comprises second rocking arm, second connecting rod, second push rod and the second supercharging part; Second rocking arm is arranged on the acting wheel and upward and with acting takes turns rotation, and it is through second connecting rod drive pushrod movement, and this second push rod links to each other with second plunger rod of second supercharging part, moves to drive second plunger rod; This second plenum branch is provided with delivery outlet, is used to export jet; The 3rd group of pressurizing pack comprises the 3rd rocking arm, third connecting rod, the 3rd push rod and the 3rd supercharging part; The 3rd rocking arm is arranged on the acting wheel and upward and with acting takes turns rotation, and it is through third connecting rod drive pushrod movement, and the 3rd push rod links to each other with the 3rd plunger rod of the 3rd supercharging part, moves to drive the 3rd plunger rod; The 3rd plenum branch is provided with delivery outlet, is used to export jet.
Preferably; It is evenly distributed that said first rocking arm, second rocking arm and the 3rd rocking arm are 120 degree with respect to said acting wheel; Said acting wheel comprises the first acting wheel and the second acting wheel, the outside that first rocking arm, second rocking arm and the 3rd rocking arm are separately positioned between the first acting wheel and the second acting wheel, do work and take turns in the outside and second of the first acting wheel.
Preferably; This first group of pressurizing pack, second group of pressurizing pack and the 3rd group of pressurizing pack comprise line slideway respectively; Said line slideway all is arranged on the frame, so that first push rod, second push rod and the 3rd push rod are done linear reciprocating motion along corresponding line slideway respectively.
Preferably; This jet generating apparatus also comprises driving wheel, drive and driven pulley; Driving wheel is arranged on the frame and by drive unit and drives down rotation; Drive and driven pulley are provided with on the driving wheel and with driving wheel and rotate around first power transmission shaft, and first acting is taken turns and the second acting wheel rotates around second power transmission shaft in order to drive; This drive unit comprises motor and decelerator; First group of pressurizing pack also comprises the first acting lever; This first acting lever, one end is connected an end of this first connecting rod; The other end of this first acting lever is hinged on the frame; First push rod, one end is arranged on this first acting lever, and the other end of this first connecting rod is connected on first rocking arm; Second group of pressurizing pack also comprises the second acting lever; This second acting lever, one end is connected an end of this second connecting rod; The other end of this second acting lever is hinged on the frame; Second push rod, one end is arranged on this second acting lever, and the other end of this second connecting rod is connected on second rocking arm; The 3rd group of pressurizing pack also comprises the acting lever; The 3rd acting lever one end is connected an end of this third connecting rod; The other end of the 3rd acting lever is hinged on the frame, and the 3rd push rod one end is arranged on the 3rd acting lever, and the other end of this third connecting rod is connected on the 3rd rocking arm.
Preferably; The first plenum branch comprises the first left pressurized cylinder and the first right pressurized cylinder; First push rod comprises the first left push rod and the first right push rod; This first plunger rod comprises the first left plunger rod and the first right plunger rod, and the first left plunger rod of the first left pressurized cylinder links to each other with the first left push rod, and the first right plunger rod of the first right pressurized cylinder links to each other with the first right push rod; The second plenum branch comprises the second left pressurized cylinder and the second right pressurized cylinder; Second push rod comprises the second left push rod and the second right push rod; This second plunger rod comprises the second left plunger rod and the second right plunger rod; The second left plunger rod of the second left pressurized cylinder links to each other with the second left push rod, and the second right plunger rod of the second right pressurized cylinder links to each other with the second right push rod; The 3rd plenum branch comprises the 3rd left pressurized cylinder and the 3rd right pressurized cylinder; The 3rd push rod comprises the 3rd left push rod and the 3rd right push rod; The 3rd plunger rod comprises the 3rd left plunger rod and the 3rd right plunger rod; The 3rd left plunger rod of the 3rd left pressurized cylinder links to each other with the 3rd left push rod, and the 3rd right plunger rod of the 3rd right pressurized cylinder links to each other with the 3rd right push rod; The jet of the first left pressurized cylinder, the second left pressurized cylinder and the 3rd left pressurized cylinder output converges formation first jet; The jet of the first right pressurized cylinder, the second right pressurized cylinder and the 3rd right pressurized cylinder output converges formation second jet, and said first jet and second jet converge the final jet of formation.
The present invention also provides a kind of water cutting machine, and it is provided with this jet generating apparatus.
Adopt jet generating apparatus of the present invention; Its flow maximum can reach per minute more than 10 liters; Pressure can reach more than the 55000psi; Adopt ultra-high pressure high flow water cutting machine of the present invention, its cutting speed is existing more than a times of water cutting machine with direct-drive type three plunger high-pressure water shot stream generating apparatus; Be more than 3~4 times of water cutting machine with two plunger high-pressure water shot stream generating apparatus; And energy consumption be have direct-drive type three plunger high-pressure water shot stream generating apparatus water cutting machine 1/2; Be have two plunger high-pressure water shot stream generating apparatus water cutting machine 1/4, the energy-saving effect highly significant is effectively realized energy-saving and emission-reduction.Simultaneously,, make switching-over (reciprocating motion) frequency significantly reduce, only need per minute 20-50 time owing to strengthened the diameter (22mm) and the stroke (108mm) of plunger rod.Therefore; Jet flow generating apparatus of the present invention reduces the hardness of employed plunger rod and the material requirements of abrasion resistance and high-pressure seal ring greatly; And the fault rate of jet generating apparatus of the present invention and consumable accessory significantly reduce, and its use cost and maintenance cost also reduce significantly.Because jet generating apparatus of the present invention need not be provided with accumulator, therefore, adopt the safety coefficient of ultra-high pressure high flow water cutting machine of jet generating apparatus of the present invention higher.
Description of drawings
Through the description of a preferred embodiment of the present invention being carried out below in conjunction with accompanying drawing, it is clearer that technical scheme of the present invention and technique effect thereof will become, and should be readily appreciated that more.Wherein:
Fig. 1 shows the front view of the jet generating apparatus of the first embodiment of the present invention;
Fig. 2 shows the vertical view of the jet generating apparatus among Fig. 1;
Fig. 3 shows the left view of the jet generating apparatus among Fig. 1;
Fig. 4 shows the arrangement sketch map of the first, second, third supercharging part of the jet generating apparatus among Fig. 1;
Fig. 5 shows the front view of the jet generating apparatus of the second embodiment of the present invention;
Fig. 6 shows the left view of the jet generating apparatus among Fig. 5;
Fig. 7 A shows two plunger high-pressure water shot stream generating apparatus structural representations in the prior art;
Fig. 7 B shows three plunger high-pressure water shot stream generating apparatus structural representations in the prior art.
Reference numeral is following:
1 drive unit; 2 driving wheels; 3 drives; 31 first power transmission shafts; 4 driven pulleys; 41 first driven pulleys; 42 second driven pulleys; 5 acting wheels; 51 first acting wheels; 52 second acting wheels; 53 second power transmission shafts; 6 rocking arms; 61 first rocking arms; 62 second rocking arms; 63 the 3rd rocking arms; 7 connecting rods; 71 first connecting rods; 72 second connecting rods; 73 third connecting rods; 8 acting levers; 81 first acting levers; 82 second acting levers; 83 the 3rd acting levers; 9 push rods; The 91A first right push rod; The 92A first left push rod; The 91B second right push rod; The 92B second left push rod; 91C the 3rd right push rod; 92C the 3rd left push rod; 10 supercharging parts; 101 first supercharging parts; 102 second supercharging parts; 103 the 3rd supercharging parts; 11 frames; 12 plunger rods; The 121A first right plunger rod; The 122A first left plunger rod; The 121B second right plunger rod; The 122B second left plunger rod; 121C the 3rd right plunger rod; 122C the 3rd left plunger rod.
The specific embodiment
Below will combine appended accompanying drawing that the preferred embodiments of the present invention are described.What need indicate is, wherein " left side ", ", and the right side " only is in order to combine accompanying drawing to be convenient to explanation and purpose of description, to be not limited only to this.
First embodiment
Fig. 1,2,3 shows front view, vertical view, the left view of the jet generating apparatus of the first embodiment of the present invention respectively.
This jet generating apparatus comprises frame 11; Be arranged on the drive unit 1 on the frame 11; Be arranged on the driving wheel 2 on the drive unit 1; Be arranged on first power transmission shaft 31 of frame 11; Be arranged on drive 3 and driven pulley 4 (this driven pulley 4 comprises first driven pulley 41 and second driven pulley 42) on first power transmission shaft 31; Be arranged on the acting wheel 5 (this acting wheel comprises the first acting wheel, the 51 and second acting wheel 52) on the frame 11; Second power transmission shaft 53; (this rocking arm 6 comprises first rocking arm 61 to be arranged on rocking arm 6 on the acting wheel 5; Second rocking arm 62 and the 3rd rocking arm 63); Connecting rod 7; Acting lever 8; Push rod 9; Supercharging part 10 and plunger rod 12.
This drive unit comprises motor and speed reducer.
The first acting wheel, 51, the second acting wheel, 52 and first rocking arm 61, second rocking arm 62, the 3rd rocking arm 63 form the eccentric mechanism that can increase moment of torsion, and first rocking arm, second rocking arm and the 3rd rocking arm wheel 5 that does work relatively is 120 and spends and be uniformly distributed with arrangement.The connecting rod 7 that links to each other with first rocking arm, second rocking arm and the 3rd rocking arm (this connecting rod comprises first connecting rod 71, second connecting rod 72 and third connecting rod 73).Acting lever 8 comprises that the first acting lever 81, the second acting lever 82 and the 3rd acting lever 83, the first acting levers, the second acting lever and the 3rd acting lever link to each other with first connecting rod 71, second connecting rod 72 and third connecting rod 73 respectively.
The first right push rod 91A and the first left push rod 92A all link to each other with the first acting lever 81; The second right push rod 91B and the second left push rod 92B all link to each other with the second acting lever 82; The 3rd right push rod 91C and the 3rd left push rod 92C all link to each other with the 3rd acting lever 83;
The first right plunger rod 121A of the first supercharging part 101 and the first left plunger rod 122A link to each other with the first right push rod 91A and the first left push rod 92A respectively; The second right plunger rod 121B of the second supercharging part 102 and the second left plunger rod 122B link to each other with the second right push rod 91B and the second left push rod 92B respectively; The 3rd right plunger rod 121C of the 3rd supercharging part 103 and the 3rd left plunger rod 122C link to each other with the 3rd right push rod 91C and the 3rd left push rod 92C respectively.
The first right push rod, the first left push rod, the second right push rod, the second left push rod, the 3rd right push rod and the 3rd left push rod are respectively arranged with line slideway; So that it carries out linear reciprocating motion; This linear reciprocating motion drives the first right plunger rod, the first left plunger rod, the second right plunger rod, the second left plunger rod, the 3rd right plunger rod and the 3rd left plunger rod and moves back and forth; Accomplish the supercharging action of water under high pressure, produce the high-pressure water jet that users such as supplying cutting off machine and high-pressure cleaning device uses.
As shown in Figure 4, it shows the arrangement of jet generating apparatus first supercharging part, second supercharging part and the 3rd supercharging part of the first embodiment of the present invention.The first plenum branch comprises the first left pressurized cylinder and the first right pressurized cylinder, and the second plenum branch comprises the second left pressurized cylinder and the second right pressurized cylinder, and the 3rd plenum branch comprises the 3rd left pressurized cylinder and the 3rd right pressurized cylinder.The first left pressurized cylinder links to each other with the first left plunger rod, and the first right pressurized cylinder links to each other with the first right plunger rod; The second left pressurized cylinder links to each other with the second left plunger rod, and the second right pressurized cylinder links to each other with the second right plunger rod; The 3rd left pressurized cylinder links to each other with the 3rd left plunger rod, and the 3rd right pressurized cylinder links to each other with the 3rd right plunger rod.The jet of the first left pressurized cylinder, the second left pressurized cylinder and the 3rd left pressurized cylinder output at first converges; The first right pressurized cylinder, the second right pressurized cylinder and the 3rd right pressurized cylinder respectively the jet of output also at first converge, both converge as high-pressure water jet again and export afterwards.
During work; Motor via reducer drives the driving wheel action, and driving wheel drives drive and driven pulley rotates; Driven pulley rotates and drives the rotation of acting wheel; Acting wheel rotating band shakes arm and moves back and forth through connecting rod promotion acting lever, and the reciprocating motion of acting lever drives push rod and then drives supercharging plunger rod partly and moves back and forth, thereby accomplishes the supercharging of water under high pressure.
Because first supercharging part, the first right plunger rod and the first left plunger rod; Second supercharging part, the second right plunger rod and the second left plunger rod; The 3rd supercharging part, the 3rd right plunger rod and the 3rd left plunger rod are constant evenly stressed in reciprocating motion, thereby guarantee to continue to produce stable big-flow high-pressure water.
In first embodiment, the main performance index of this jet flow generating apparatus is following:
Plunger rod diameter: 22.22mm
Plunger rod stroke: 102mm
Used nozzle: 0.35mm
Maximum pressure: 60000psi
Pressurized cylinder: three groups 6
Plunger rod move back and forth number of times be 50 times min the time, corresponding flow be 11.4 liters min.
Plunger rod move back and forth number of times be 30 times min the time, corresponding flow be 4.56 liters min.
The plunger rod required thrust: cm
First rocking arm, second rocking arm and the 3rd rocking arm are 120 degree with respect to the acting wheel and are uniformly distributed with arrangement, make the high-pressure water jet pressure oscillation be lower than 5%, realize the jet of big flow, and efficient are very high.
In addition, each node has been realized laborsavingly in this jet flow generating apparatus, and it is laborsaving such as down to be equipped with artis:
Connecting rod place: 6.67: 1;
Acting wheel and rocking arm place: 2.3: 1;
Driving wheel, drive and driven pulley place: 4.94: 1;
Total force rate of economizing: 75.79: 1.
In addition, through strengthening eccentric wheel diameter and the dynamic and static arm of force ratio of laborsaving lever, can obtain bigger moment of torsion, thereby obtain the bigger flow and the high-pressure water jet of high pressure more, range of application is more extensive.
This shows that the realization of above-mentioned performance indications only needs motor output 20NM moment of torsion to get final product, promptly the required motor power controlled is below 7.5Kw, thereby this jet flow generating apparatus can effectively be realized energy-conservation.
In addition, move back and forth 4.56 liters of 30 flows under the state, the efficient of this jet flow generating apparatus improves more than 80% than fluid pressure type two plunger high-pressure water shot stream generating apparatus.Move back and forth 11.4 liters of 50 flows under the state, can supply two above cutting equipments to use simultaneously, its efficient improves nearly 4 times than fluid pressure type two plunger high-pressure water shot stream generating apparatus.
Therefore, jet flow generating apparatus of the present invention has the more significantly characteristics of efficient energy-saving.
Second embodiment
Like accompanying drawing 5, shown in 6, it shows the jet flow generating apparatus of the second embodiment of the present invention.Wherein, with first embodiment in same or analogous parts adopt same or analogous designated.
When the user need low discharge (as less than 4 liters min and pressure: in the time of 55000Psi), can adopt high pulling torque eccentric wheel in the jet flow generating apparatus of the first embodiment of the present invention, directly promote the simple mechanism that three plunger rods produce high-pressure water jets and realize; Also can adopt in the jet flow generating apparatus of the first embodiment of the present invention acting lever construction to realize above-mentioned function.
In a second embodiment, this jet flow generating apparatus comprise frame, be arranged on drive unit 1 on the frame, be arranged on driving wheel 2 on the frame, be arranged on drive 3 and driven pulley 4 on the driving wheel, be arranged on acting wheel 5 on the frame, be arranged on the rocking arm 6 on the acting wheel 5, the plunger rod 12 of the connecting rod 7 that links to each other with rocking arm, the push rod 9 that links to each other with connecting rod 7, the supercharging part 10 that links to each other with push rod 9.
This rocking arm forms the eccentric mechanism that can increase moment of torsion with the acting wheel; This rocking arm be three and relatively the acting wheel be 120 degree article words and be uniformly distributed with arrangement; Three connecting rods link to each other with each rocking arm respectively; Reciprocating action through push rod 9 drives plunger rod 12 reciprocating motions, accomplishes the supercharging of water under high pressure, and then produces the high-pressure water jet that users such as supplying cutting off machine and high-pressure cleaning device use.
During work; Motor via reducer drives the driving wheel action; Driving wheel drives drive and driven pulley rotates; Drive and driven pulley rotate and drive the rotation of acting wheel, and acting wheel rotating band shakes arm and moves back and forth through the plunger rod that connecting rod promotes push rod and supercharging part, thus the supercharging of completion water under high pressure.
Because three plunger rods of supercharging part are constant evenly stressed in the reciprocating motion process under the push rod effect, thereby guarantee to continue to produce stable water under high pressure.
The main performance index of the jet flow generating apparatus of present embodiment is following:
Plunger rod diameter: 22.22mm;
Plunger rod stroke: 102mm;
Used nozzle: 0.35mm;
Maximum pressure: 60000psi;
Pressurized cylinder: 3;
Plunger rod move back and forth number of times be 50 times min, its corresponding flow be 5.7 liters min.
Plunger rod move back and forth number of times be 30 times min, its corresponding flow be 3.42 liters min.
For the person of ordinary skill in the field, along with the development of technology, the present invention's design can realize by different way.Embodiment of the present invention is not limited in the embodiment of above description, and can change within the scope of the claims.