CN102261360B - Multi-waveform hydraulic rotary valve for hydraulic vibration exciter - Google Patents
Multi-waveform hydraulic rotary valve for hydraulic vibration exciter Download PDFInfo
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- CN102261360B CN102261360B CN201110191990.8A CN201110191990A CN102261360B CN 102261360 B CN102261360 B CN 102261360B CN 201110191990 A CN201110191990 A CN 201110191990A CN 102261360 B CN102261360 B CN 102261360B
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Abstract
The invention discloses a multi-waveform hydraulic rotary valve for a hydraulic vibration exciter. The hydraulic rotary valve comprises a valve seat and a valve core, wherein the valve seat is internally provided with an inner cavity, and the side wall of the inner cavity is respectively provided with a channel B and a channel D which radially penetrate through the inner cavity; the parts, corresponding to the channel B and the channel D, of the valve core are respectively provided with a guide groove B and a guide groove D which are radially extended to penetrate through the valve core; the valve core cross section faced to the left end of the valve core is frontage, and one notch of the guide groove B is anti-clockwise staggered pi/8 relative to a first upper through hole; one notch of the guide groove D is anti-clockwise staggered pi/8 relative to a second upper through hole; the side wall of the inner cavity is also provided with a channel C which radially penetrates through the inner cavity, and the axis of the channel C is placed and the axis of the channel B are positioned on a same plane and are mutual parallel; and the part, corresponding to the channel C, of the valve core is provided with a guide groove C which is radially extended to penetrate through the valve core. The hydraulic rotary valve provided by the invention can be used for increasing or closing the corresponding oil way to generate different forms of pulsating waves according to the practical work requirements and has a wide application range.
Description
Technical field
The present invention relates to a kind of hydraulic reversing valve that is used to hydraulic vibration exciter that vibration source is provided.
Background technique
Vibration exciter is to produce excitation force, and this excitation force can be applied to the device on other structures and equipment.Existing vibration exciter has the various structures forms such as inertia-type, electrodynamic type, electromagnetic type, electrolyte type, pneumatic type, hydraulic type, wherein the principle of hydraulic type vibration exciter is to utilize the break-make shunting of fluid to produce vibration, it has, and volume is little, lightweight, power large, compact structure, and can provide high pressure oil with hydraulic station independently, be beneficial to separating of the energy and actuator, reduce the advantages such as rate of fault, hydraulic vibration exciter becomes the main flow of this application gradually, is widely used in the industrial departments such as mine, traffic, building, building materials, metallurgy.
The existing hydraulic reversing valve of many waveforms for hydraulic vibration exciter, as on March 9th, 2005 disclosed publication number be disclosed four stopcocks for hydraulic vibration exciter of CN2683910Y utility model patent, it comprise there is liquid entering hole, the valve seat of liquid return hole, oil hydraulic cylinder connection mouth, be actively tied in the axis in valve seat, axis middle part is set and is engaged in the cylindrical body spool of valve base cavity, on spool, offer two cross guiding gutters of 45 ° that mutually stagger.When work, axis is driven by motor, make Spool rotating, spool cylndrical surface makes liquid entering hole or liquid return hole block, by cross guiding gutter, liquid entering hole or liquid return hole are connected with oil hydraulic cylinder connection mouth simultaneously with oil hydraulic cylinder connection mouth according to this, forms in turn high pressure liquid, reflux liquid passage; Like this, spool often turns over 45 ° of vibrations once, and four sinuous pulsation ripples of output rotate a circle.But this four stopcocks for hydraulic vibration exciter, can only export four continuous sinuous pulsation ripples when work, the form of the pulsating wave of its output is comparatively single, and Applicable scope is little.
In view of above-mentioned reason, the inventor conducts in-depth research the structure of the hydraulic reversing valve for hydraulic vibration exciter, and this case produces thus.
Summary of the invention
The object of this invention is to provide a kind of hydraulic reversing valve of many waveforms for hydraulic vibration exciter, its exportable multi-form pulsating wave, applied widely.
Technological scheme of the present invention is such: a kind of hydraulic reversing valve of many waveforms for hydraulic vibration exciter, comprise valve seat and spool, in this valve seat, be provided with inner chamber, the sidewall of this inner chamber is provided with the B passage and the D passage that radially run through respectively inner chamber, B passage and D passage are formed with and are symmetricly set on respectively on inner chamber, and each aperture is through hole on identical first all, through hole on the first lower through-hole and second, the second lower through-hole, the axis of the axis of B passage and D passage is in the same plane and be parallel to each other, on first, on through hole and second, through hole extension merges together, and be jointly opened on and on valve seat, form oil hydraulic cylinder connection mouth, the first lower through-hole and the second lower through-hole extend separately respectively valve seat and form liquid entering hole, liquid return hole, spool activity accumbency is installed in the inner chamber of valve seat, and one end of spool extends to outside valve seat, this spool offers respectively the B guiding gutter and the D guiding gutter that radially extend through spool on the position corresponding with B passage and D passage, and this B guiding gutter and D guiding gutter are the identical cross recess of internal diameter of through hole on the internal diameter and first of its each notch, take the spool cross section towards spool left side as positive, the one notch of this B guiding gutter is with respect to π/8 of staggering counterclockwise of through hole on first, and the one notch of this D guiding gutter is with respect to π/8 of staggering clockwise of through hole on second, on the sidewall of above-mentioned inner chamber, be also provided with and radially run through above-mentioned inner chamber, and the axis of its axis and above-mentioned B passage is in the same plane and the C-channel that is parallel to each other, this C-channel is formed with and is symmetricly set on above-mentioned inner chamber, and its aperture its be 1/2 times of aperture of through hole on first the 3rd on through hole and the 3rd lower through-hole, on the above-mentioned the 3rd, through hole is connected with above-mentioned oil hydraulic cylinder connection mouth, above-mentioned the 3rd lower through-hole is connected with above-mentioned liquid entering hole, above-mentioned spool offers the C guiding gutter that radially extends through spool on the position corresponding with above-mentioned C-channel, it is identical with the internal diameter of through hole on the 3rd that above-mentioned C guiding gutter includes each notch internal diameter, and the little cross recess of the first little cross recess second that intersection connects each other, above-mentioned the first little cross recessed one notch is with respect to π/16 of staggering counterclockwise of through hole on the above-mentioned the 3rd, above-mentioned the second little cross recessed one notch is with respect to through hole on the above-mentioned the 3rd stagger counterclockwise 3 π/16 or π/4, above-mentioned valve seat is provided with B switch valve and the C switch valve of controlling respectively above-mentioned B passage and above-mentioned C-channel conducting or cut-off.
On the sidewall of above-mentioned inner chamber, be also provided with and radially run through above-mentioned inner chamber, and the axis of its axis and above-mentioned B passage is in the same plane and the A channel that is parallel to each other, this A channel is formed with and is symmetricly set on above-mentioned inner chamber, and the aperture of its aperture and through hole on first identical the 4th on through hole and the 4th lower through-hole, on the 4th, through hole is connected with above-mentioned oil hydraulic cylinder connection mouth, above-mentioned the 4th lower through-hole is connected with above-mentioned liquid entering hole, above-mentioned spool offers the A guiding gutter that radially extends through spool on the position corresponding with above-mentioned A channel, above-mentioned A guiding gutter is the cross recess of 2 times in its each notch internal diameter aperture that is through hole footpath on the 4th, and this cross recessed one notch is with respect to 3 π/16 of staggering counterclockwise of through hole on the above-mentioned the 4th, above-mentioned valve seat is provided with the A switch valve of controlling above-mentioned A channel conducting or cut-off.
Above-mentioned C-channel is provided with two, all corresponding above-mentioned C-channel settings of through hole, above-mentioned the 3rd lower through-hole, above-mentioned C guiding gutter and above-mentioned C switch valve on the above-mentioned the 3rd, and the first little cross recessed one notch of above-mentioned one C guiding gutter is with respect to π/16 of staggering counterclockwise of through hole on the above-mentioned the 3rd, the second little cross recessed one notch is with respect to 3 π/16 of staggering counterclockwise of through hole on the above-mentioned the 3rd; The first little cross recessed one notch of above-mentioned another C guiding gutter is with respect to π/16 of staggering counterclockwise of through hole on the above-mentioned the 3rd, and the second little cross recessed one notch is with respect to π/4 of staggering counterclockwise of through hole on the above-mentioned the 3rd.
Above-mentioned B switch valve be with above-mentioned first on the suitable bolt-type switch of through hole, above-mentioned valve seat is positioned at the position of through hole on first and offers the mounting hole suitable with B switch valve, and this mounting hole is vertical with through hole on first to be arranged, the afterbody of this B switch valve embeds on above-mentioned first and is isolated into two chambers that are not conducted mutually in through hole and by through hole on first, the head of above-mentioned B switch valve stretches out outside above-mentioned mounting hole, and above-mentioned B switch valve is positioned at towards the position of above-mentioned one chamber and is concaved with short slot.
Above-mentioned C switch valve be with the above-mentioned the 3rd on the suitable bolt-type switch of through hole, the position that above-mentioned valve seat is positioned at through hole on the 3rd offers the mounting hole suitable with C switch valve, and this mounting hole arranges with on the 3rd, through hole is vertical, the afterbody of this C switch valve embeds on the above-mentioned the 3rd and is isolated into two chambers that are not conducted mutually in through hole and by through hole on the 3rd, the head of above-mentioned C switch valve stretches out outside above-mentioned mounting hole, and above-mentioned C switch valve is positioned at towards the position of above-mentioned one chamber and is concaved with short slot.
Above-mentioned A switch valve be with the above-mentioned the 4th on the suitable bolt-type switch of through hole, the position that above-mentioned valve seat is positioned at through hole on the 4th offers the mounting hole suitable with A switch valve, and this mounting hole arranges with on the 4th, through hole is vertical, the afterbody of this A switch valve embeds on the above-mentioned the 4th and is isolated into two chambers that are not conducted mutually in through hole and by through hole on the 4th, the head of above-mentioned A switch valve stretches out outside above-mentioned mounting hole, and above-mentioned A switch valve is positioned at towards the position of above-mentioned one chamber and is concaved with short slot.
Adopt after such scheme, the invention has the beneficial effects as follows: when use, can increase or close corresponding oil circuit according to need of work, make spool can export continuous sawtooth pulsating wave and continuous sinuous pulsation ripple, and sawtooth wave is applicable to the fixed pulse vibration of thump, sine wave is applicable to stationarity and requires high impulse oscillation, applied widely.
Accompanying drawing explanation
Fig. 1 is partial sectional view of the present invention;
Fig. 2 is the plan view of upper connection piece in the present invention;
Fig. 3 is the cut-away view along A-B direction in Fig. 2;
Fig. 4 is the structural representation of B switch valve in the present invention;
Fig. 5 is the initial phase bitmap of A, B, C1, C2, D in the present invention;
Fig. 6 is the phase diagram of high-pressure oil passage and low pressure oil way when the first working state in the present invention;
Fig. 7 is the phase diagram of high-pressure oil passage and low pressure oil way when the second working state in the present invention;
Fig. 8 is the phase diagram of high-pressure oil passage and low pressure oil way when the 3rd working state in the present invention;
Fig. 9 is sawtooth wave flow periodogram;
Figure 10 is continuous sinuous pulsation wave current amount periodogram;
Figure 11 is rectangular wave flow periodogram;
Figure 12 is the partial sectional view of the present invention's the first service condition;
Figure 13 is the partial sectional view of the present invention's the second service condition.
Embodiment
Many waveforms for hydraulic vibration exciter hydraulic reversing valve of the present invention, as Figure 1-3, comprises valve seat and spool 1, wherein:
Valve seat comprises upper connection piece 2, lower contact piece 3, protecgulum 4, bonnet 5, and the hollow cylinder 6 of both ends open, upper connection piece 2, lower contact piece 3 is installed in respectively on the both sides outer wall of hollow cylinder 6, on upper connection piece 2, offer oil hydraulic cylinder connection mouth 21, on lower contact piece 3, offer liquid entering hole 31 and liquid return hole 32, protecgulum 4, bonnet 5 is covered in respectively on the both ends open of hollow cylinder 6, and on protecgulum 4, offer the axial hole that connects protecgulum 4, spool 1 activity is embedded in the cavity of hollow cylinder 6, and be accumbency place, a left side for spool 1, right-hand member is by bearing 71, 72 are actively tied in protecgulum 4, on bonnet 5, and the right-hand member of spool 1 passes the axial center hole of protecgulum 4 to valve seat, and seal by the seal ring 81 being set on spool 1 between the right-hand member of spool 1 and axial center hole, this seal ring 81 coordinates spacing in axial center hole by loose rib 82 with check ring 83.
The sidewall of hollow casing 6 is provided with the A that radially runs through respectively inner chamber, B, C1, C2, D passage, A, B, C1, C2, D passage is formed with the upper through hole 22 on the sidewall that symmetric coaxial is respectively arranged on hollow casing 6, 23, 24, 25, 26 and lower through- hole 33, 34, 35, 36, 37, and upper through hole 22, 23, 26 with each lower through- hole 33, 34, 37 aperture is all identical, upper through hole 24, 25 and lower through- hole 35, 36 aperture is 1/2 times of aperture of through hole 22, A, B, C1, C2, the axis of D passage is all in the same plane and be parallel to each other, the upper aperture of upper through hole 22, the upper aperture of upper through hole 23, the upper aperture of upper through hole 24, the upper aperture of upper through hole 25 and the upper aperture of upper through hole 26 extend upwardly to respectively in upper connection 2 and are connected with the oil hydraulic cylinder connection mouth 21 of upper connection 2, the lower aperture of lower through-hole 33, the lower aperture of lower through-hole 34, the lower aperture of lower through-hole 35 and the lower aperture of lower through-hole 36 extend downward respectively in lower contact 3 and are connected with the liquid entering hole 31 of lower contact 3, and the lower aperture of lower through-hole 37 extends downward in lower contact 3 and is connected with the liquid return hole 32 of lower contact 3.
Spool 1 and A, B, C1, C2, D passage offers respectively the A that radially extends through spool on corresponding position, B, C1, C2, D guiding gutter, the internal diameter that wherein A guiding gutter is its each notch is the cross recess 61 of 2 times in the aperture of through hole 22, B, the internal diameter that D guiding gutter is its each notch all with upper through hole 23, 26 the identical cross recess 62 of internal diameter, 63, C1 guiding gutter includes all cross recesses 64 identical with the internal diameter of upper through hole 24 of two its each notch internal diameters, 65, and cross recess 64, cross recess 65 mutually intersects and connects, C2 guiding gutter includes all cross recesses 66 identical with the internal diameter of upper through hole 25 of two its each notch internal diameters, 67, between cross recess 66 and cross recess 67, mutually intersect perforation, take the spool cross section towards spool 1 left side as positive, the one notch of cross recess 61 is with respect to upper through hole 22 3 π/16 of staggering counterclockwise, the one notch of cross recess 62 is with respect to upper through hole 23 π/8 of staggering counterclockwise, the one notch of cross recess 63 is with respect to upper through hole 26 π/8 of staggering clockwise, the one notch of cross recess 64 is with respect to upper through hole 24 π/16 of staggering counterclockwise, the one notch of cross recess 65 is with respect to upper through hole 24 3 π/16 of staggering counterclockwise, the one notch of cross recess 66 is with respect to upper through hole 25 π/16 of staggering counterclockwise, the one notch of cross recess 67 is with respect to upper through hole 25 π/4 of staggering counterclockwise.
The B switch valve 8 that on upper connection piece 2 is provided with and controls, through hole 23 and hydraulic connecting mouth 21 are conducted or end, this B switch valve 8 is bolt-type switch, this bolt-type switch is all identical with the principle of the structure of the bolt-type switch of hydraulic vibration exciter in prior art.The present embodiment is simply described at this, as shown in Figure 4, the position that upper connection piece 2 is positioned at through hole 23 offers the mounting hole (not shown) suitable with B switch valve 8, and this mounting hole setting vertical with upper through hole 23, the afterbody of this B switch valve 8 embeds in the upper through hole 23 of upper connection piece 2 and upper through hole 23 is isolated into the upper chamber and the lower chambers that are not conducted between the two, the head of this B switch valve 8 stretches out outside upper connection piece 2, and this B switch valve 8 is positioned at towards the position of the upper chamber of upper through hole 23 and is concaved with short slot 81; When use, clockwise or be rotated counterclockwise B switch valve 90 and spend, now can make upper and lower two chambers of upper through hole 23 on state by the short slot 81 of this B switch valve 8, thereby through hole 23 can be connected with hydraulic connecting mouth 21.On upper connection piece 2, be also provided with A switch valve, C1 switch valve and the C2 switch valve of controlling respectively upper through hole 22,24,25 conductings or cut-off, this A switch valve, C1 switch valve are all identical with structure and the working principle of B switch valve with structure and the working principle of C2 switch valve, and the applicant will be not repeated at this.
The working principle of the hydraulic reversing valve of the many waveforms for hydraulic vibration exciter of the present invention is: the right-hand member of spool 1 is driven by motor, spool 1 is rotated in hollow casing 6 is interior, now the sidewall of hollow casing 6 can stop up according to this or conducting upper connection piece 2 on each upper through hole and the each lower through-hole on lower contact piece 3, thereby form in turn high-pressure oil passage and low pressure oil way.
Wherein high-pressure oil passage has tetra-groups of A, B, C1, C2, wherein A group high-pressure oil passage is: high pressure liquid enters from the liquid entering hole 31 of lower contact piece 3, flow into a notch of the cross recess 61 of spool 1 by the lower through-hole 33 being communicated with it, and through another notch of symmetrically arranged cross recess 61, flow in the upper through hole 22 of upper connection piece 2, finally flow out from the oil hydraulic cylinder connection mouth 21 being connected with through hole 22; B group high-pressure oil passage is: high pressure liquid enters from the liquid entering hole 31 of lower contact piece 3, flow into a notch of the cross recess 62 of spool 1 by the lower through-hole 34 being communicated with it, and through another notch of symmetrically arranged cross recess 62, flow in the upper through hole 23 of upper connection piece 2, finally flow out from the oil hydraulic cylinder connection mouth 21 being connected with through hole 23; C1 group high-pressure oil passage is: high pressure liquid enters from the liquid entering hole 31 of lower contact piece 3, flow into by the lower through-hole 35 being communicated with it in the one notch of cross recess 64 or the one notch of cross recess 65 of spool 1, and warp is to another notch of symmetrically arranged cross recess 64 or another notch of cross recess 65, flow in the upper through hole 24 of upper connection piece 2, last from flowing out with the oil hydraulic cylinder connection mouth 21 of through hole 24; C2 group high-pressure oil passage is: high pressure liquid enters from the liquid entering hole 31 of lower contact piece 3, flow into by the lower through-hole 36 being communicated with it in the one notch of cross recess 66 or the one notch of cross recess 67 of spool 1, and warp is to another notch of symmetrically arranged cross recess 66 or another notch of cross recess 67, flow in the upper through hole 25 of upper connection piece 2, last from flowing out with the oil hydraulic cylinder connection mouth 21 of through hole 25.
Low pressure oil way is that the low hydraulic fluid in oil hydraulic cylinder flows into from the oil hydraulic cylinder connection mouth 21 of upper connection piece 2, through flowing in a notch of cross recess 63 of spool 1 by the upper through hole 26 being communicated with it, and through another notch of symmetrically arranged cross recess 63, flow in the lower through-hole 37 of lower contact piece 3, finally flow out from the liquid return hole 32 being connected with lower through-hole 37, be back in hydraulic oil container.
Many waveforms for hydraulic vibration exciter hydraulic reversing valve of the present invention, be decided to be the original state of spool with the phase place of each guiding gutter in shown in Fig. 5, in figure, A-A represents the phase diagram of A guiding gutter, B-B represents the phase diagram of B guiding gutter, C1-C1 represents the phase diagram of C1 guiding gutter, C2-C2 represents the phase diagram of C2 guiding gutter, and D-D represents the phase diagram of D guiding gutter, in figure 1 of each phase diagram, 2,3,4...... represents that oilhole connects in proper order.
Many waveforms for hydraulic vibration exciter hydraulic reversing valve of the present invention, it has three kinds of working staties, and the first working state is: close A switch valve and C switch valve, open B switch valve, be B high-pressure oil passage, low pressure oil way work, be spool forward direction in a clockwise direction, as shown in Fig. 6 (a), when spool goes to (4n+1) π/8 (n=0,1,2,3......) B group high-pressure oil passage is connected when the moment, low pressure oil way cut-off; As shown in Fig. 6 (b), in the time that spool goes to (4n+3) π/8 (n=0,1,2,3......) moment, low pressure oil way is connected, the cut-off of B group high-pressure oil passage; As shown in Figure 9, in the time of valve core rotation one week, according to the principle of geometric superposition in fluid mechanics, can calculate the now flow cyclic curve of oil hydraulic cylinder is sawtooth wave, because sawtooth wave is relatively precipitous, forward to and can produce larger oil shock at spool, now the hydraulic reversing valve of working state is applicable in the fixed pulse vibration of thump.
When the second working state, close A switch valve, open B switch valve and C1 switch valve, i.e. B high-pressure oil passage, C1 high-pressure oil passage and low pressure oil way work, be spool forward direction in a clockwise direction, as shown in Fig. 7 (a), when spool goes to n π/16 (n=1,3,9,11,17......) moment, now high-pressure oil passage started to connect in order to pulse the zero hour; As shown in Fig. 7 (b), be the maximum moment of flow when spool goes to (4n+1) π/8 (n=0,1,2,3......) moment, now B group high-pressure oil passage is connected completely, and C1 group high-pressure oil passage and low pressure oil way are obstructed; As shown in Fig. 7 (c), when going to n π/4 (n=0,1,2, the 3......) moment, spool stops the moment for pulsing, and now B group, C1 group high-pressure oil passage are closed completely.Like this, in the time of valve core rotation one week, according to the principle of geometric superposition in fluid mechanics, the sine wave that the flow cyclic curve that can calculate oil hydraulic cylinder is, as shown in figure 10, the hydraulic reversing valve of this kind of working state is applicable to stationarity and requires in high impulse oscillation.
When the third working state, close B switch valve, open A switch valve and C2 switch valve, i.e. A high-pressure oil passage, C2 high-pressure oil passage and low pressure oil way work, is spool forward direction in a clockwise direction, as shown in Fig. 8 (a), when spool goes to (4n+1) π/16 (n=0,1,2,3......) moment is the pulsation zero hour, and now A, C2 group high-pressure oil passage starts to connect; As shown in Fig. 8 (b), when spool goes to (n
1+ 8n
2) π/8 (n
1=2,3,4; n
2=0,1,2,3......) moment is the maximum moment of flow, and now A group high-pressure oil passage is connected completely, and C2 group high-pressure oil passage and low tension oil circuit are obstructed; As shown in Fig. 8 (c), when spool goes to (6+8n) π/16 (n=0,1,2,3......) moment for pulsing the finish time, now A, C2 group high-pressure oil passage is closed completely.Like this, in the time of valve core rotation one week, according to the principle of geometric superposition in fluid mechanics, the flow cyclic curve that can calculate oil hydraulic cylinder is rectangular wave, and as shown in figure 11, the hydraulic reversing valve of this kind of working state is applicable to require in impulse oscillation that stage oil pressure keeps.
In the present invention, in order to increase the sealing of valve seat, the joint being connected with hollow casing 6 at upper connection piece 2, lower contact piece 3, protecgulum 4, bonnet 5 is all established transposition seal ring.
In the present invention, in use, for the shearing stress that prevents spool is weakened, C1 guiding gutter and C2 guiding gutter can be separately positioned on two spools, as shown in Figure 12,13, one spool is provided with A, B, C1, D guiding gutter, and another spool is provided with A, B, C2, D guiding gutter, like this, can change spool according to different operating occasion.
In the present invention, need to increase or to close corresponding oil circuit according to real work and produce sawtooth wave, sine wave and Continuous Rectangular ripple.
The present invention is the many waveforms hydraulic pressure shock wave device that uses the geometric superposition principle design in fluid mechanics, can be advantageously applied to high frequency, high pressure, the removable workplace of many waveforms.In hydraulic exciting, reversing arrangement application, the present invention has good application prospect and value.
Claims (6)
1. the hydraulic reversing valve of the many waveforms for hydraulic vibration exciter, comprise valve seat and spool, in this valve seat, be provided with inner chamber, the sidewall of this inner chamber is provided with the B passage and the D passage that radially run through respectively inner chamber, B passage and D passage are formed with and are symmetricly set on respectively on inner chamber, and each aperture is through hole on identical first all, through hole on the first lower through-hole and second, the second lower through-hole, the axis of the axis of B passage and D passage is in the same plane and be parallel to each other, on first, on through hole and second, through hole extension merges together, and be jointly opened on and on valve seat, form oil hydraulic cylinder connection mouth, the first lower through-hole and the second lower through-hole extend separately respectively valve seat and form liquid entering hole, liquid return hole, spool activity accumbency is installed in the inner chamber of valve seat, and one end of spool extends to outside valve seat, this spool offers respectively the B guiding gutter and the D guiding gutter that radially extend through spool on the position corresponding with B passage and D passage, and this B guiding gutter and D guiding gutter are the identical cross recess of internal diameter of through hole on the internal diameter and first of its each notch, it is characterized in that: take the spool cross section towards spool left side as positive, the one notch of this B guiding gutter is with respect to π/8 of staggering counterclockwise of through hole on first, the one notch of this D guiding gutter is with respect to π/8 of staggering clockwise of through hole on second, on the sidewall of above-mentioned inner chamber, be also provided with and radially run through above-mentioned inner chamber, and the axis of its axis and above-mentioned B passage is in the same plane and the C-channel that is parallel to each other, this C-channel is formed with and is symmetricly set on above-mentioned inner chamber, and its aperture be 1/2 times of aperture of through hole on first the 3rd on through hole and the 3rd lower through-hole, on the above-mentioned the 3rd, through hole is connected with above-mentioned oil hydraulic cylinder connection mouth, above-mentioned the 3rd lower through-hole is connected with above-mentioned liquid entering hole, above-mentioned spool offers the C guiding gutter that radially extends through spool on the position corresponding with above-mentioned C-channel, it is identical with the internal diameter of through hole on the 3rd that above-mentioned C guiding gutter includes each notch internal diameter, and the little cross recess of the first little cross recess second that intersection connects each other, above-mentioned the first little cross recessed one notch is with respect to π/16 of staggering counterclockwise of through hole on the above-mentioned the 3rd, above-mentioned the second little cross recessed one notch is with respect to through hole on the above-mentioned the 3rd stagger counterclockwise 3 π/16 or π/4, above-mentioned valve seat is provided with B switch valve and the C switch valve of controlling respectively above-mentioned B passage and above-mentioned C-channel conducting or cut-off.
2. the hydraulic reversing valve of the many waveforms for hydraulic vibration exciter according to claim 1, it is characterized in that: on the sidewall of above-mentioned inner chamber, be also provided with and radially run through above-mentioned inner chamber, and the axis of its axis and above-mentioned B passage is in the same plane and the A channel that is parallel to each other, this A channel is formed with and is symmetricly set on above-mentioned inner chamber, and the aperture of its aperture and through hole on first identical the 4th on through hole and the 4th lower through-hole, on the 4th, through hole is connected with above-mentioned oil hydraulic cylinder connection mouth, above-mentioned the 4th lower through-hole is connected with above-mentioned liquid entering hole, above-mentioned spool offers the A guiding gutter that radially extends through spool on the position corresponding with above-mentioned A channel, above-mentioned A guiding gutter is the cross recess of 2 times in its each notch internal diameter aperture that is through hole footpath on the 4th, and this cross recessed one notch is with respect to 3 π/16 of staggering counterclockwise of through hole on the above-mentioned the 4th, above-mentioned valve seat is provided with the A switch valve of controlling above-mentioned A channel conducting or cut-off.
3. the hydraulic reversing valve of the many waveforms for hydraulic vibration exciter according to claim 1, it is characterized in that: above-mentioned C-channel is provided with two, all corresponding above-mentioned C-channel settings of through hole, above-mentioned the 3rd lower through-hole, above-mentioned C guiding gutter and above-mentioned C switch valve on the above-mentioned the 3rd, and the first little cross recessed one notch of above-mentioned one C guiding gutter is with respect to π/16 of staggering counterclockwise of through hole on the above-mentioned the 3rd, the second little cross recessed one notch is with respect to 3 π/16 of staggering counterclockwise of through hole on the above-mentioned the 3rd; The first little cross recessed one notch of above-mentioned another C guiding gutter is with respect to π/16 of staggering counterclockwise of through hole on the above-mentioned the 3rd, and the second little cross recessed one notch is with respect to π/4 of staggering counterclockwise of through hole on the above-mentioned the 3rd.
4. the hydraulic reversing valve of the many waveforms for hydraulic vibration exciter according to claim 1, it is characterized in that: above-mentioned B switch valve be with above-mentioned first on the suitable bolt-type switch of through hole, above-mentioned valve seat is positioned at the position of through hole on first and offers the mounting hole suitable with B switch valve, and this mounting hole is vertical with through hole on first to be arranged, the afterbody of this B switch valve embeds on above-mentioned first and is isolated into two chambers that are not conducted mutually in through hole and by through hole on first, the head of above-mentioned B switch valve stretches out outside above-mentioned mounting hole, above-mentioned B switch valve is positioned at towards the position of above-mentioned one chamber and is concaved with short slot.
5. according to the hydraulic reversing valve of the many waveforms for hydraulic vibration exciter described in claim 1 or 3, it is characterized in that: above-mentioned C switch valve be with the above-mentioned the 3rd on the suitable bolt-type switch of through hole, the position that above-mentioned valve seat is positioned at through hole on the 3rd offers the mounting hole suitable with C switch valve, and this mounting hole arranges with on the 3rd, through hole is vertical, the afterbody of this C switch valve embeds on the above-mentioned the 3rd and is isolated into two chambers that are not conducted mutually in through hole and by through hole on the 3rd, the head of above-mentioned C switch valve stretches out outside above-mentioned mounting hole, and above-mentioned C switch valve is positioned at towards the position of above-mentioned one chamber and is concaved with short slot.
6. the hydraulic reversing valve of the many waveforms for hydraulic vibration exciter according to claim 2, it is characterized in that: above-mentioned A switch valve be with the above-mentioned the 4th on the suitable bolt-type switch of through hole, the position that above-mentioned valve seat is positioned at through hole on the 4th offers the mounting hole suitable with A switch valve, and this mounting hole arranges with on the 4th, through hole is vertical, the afterbody of this A switch valve embeds on the above-mentioned the 4th and is isolated into two chambers that are not conducted mutually in through hole and by through hole on the 4th, the head of above-mentioned A switch valve stretches out outside above-mentioned mounting hole, and above-mentioned A switch valve is positioned at towards the position of above-mentioned one chamber and is concaved with short slot.
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| CN201110191990.8A CN102261360B (en) | 2011-07-08 | 2011-07-08 | Multi-waveform hydraulic rotary valve for hydraulic vibration exciter |
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| CN201110191990.8A CN102261360B (en) | 2011-07-08 | 2011-07-08 | Multi-waveform hydraulic rotary valve for hydraulic vibration exciter |
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| CN102261360B true CN102261360B (en) | 2014-06-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102840193B (en) * | 2012-09-10 | 2015-01-14 | 太原理工大学 | Water pressure fluctuation excitation device |
| CN102966643B (en) * | 2012-11-22 | 2015-06-17 | 裕东（中山）机械工程有限公司 | Mechanical rotary type pulse gas generator |
| CN104747520B (en) * | 2015-03-20 | 2017-11-28 | 辽东学院 | Hydraulic exciting rotates reversal valve |
| CN108204469B (en) * | 2017-12-10 | 2019-09-10 | 浙江伟星新型建材股份有限公司 | The dual-purpose high frequency rotary valve of novel gas-liquid |
| CN111828439B (en) * | 2020-06-16 | 2022-08-09 | 浙大城市学院 | High-frequency hydraulic vibration exciter |
| CN113669318B (en) * | 2021-08-03 | 2023-05-05 | 华侨大学 | Hydraulic device with hydraulic control check valve flow distribution radial plunger controlled by rotating shaft |
| CN114811117B (en) * | 2022-02-24 | 2022-12-02 | 浙江工业大学 | High-frequency one-way sinusoidal flow control valve |
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