CN203610575U - Full-hydraulic electro-hydraulic hammer with main control valve positioned aside and vertically placed - Google Patents
Full-hydraulic electro-hydraulic hammer with main control valve positioned aside and vertically placed Download PDFInfo
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- CN203610575U CN203610575U CN201320657534.2U CN201320657534U CN203610575U CN 203610575 U CN203610575 U CN 203610575U CN 201320657534 U CN201320657534 U CN 201320657534U CN 203610575 U CN203610575 U CN 203610575U
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Abstract
The utility model discloses a full-hydraulic electro-hydraulic hammer with a main control valve positioned aside and vertically placed, relating to a forging hammer used in the forging industry and particularly relating to a forging hammer which utilizes hydraulic drive and operation. The utility model aims to provide a full-hydraulic electro-hydraulic hammer with the main control valve positioned aside and vertically placed, wherein a control valve is conveniently dismantled and maintained. The full-hydraulic electro-hydraulic hammer with the main control valve positioned aside and vertically placed comprises a machine body (1), a hydraulic source and the control valve, wherein a cylinder liner (11) is arranged in the machine body (1), a hammer rod piston (12) is slidingly connected into the cylinder liner (11), the cylinder liner (11) is divided into an upper cylinder chamber (111) and a lower cylinder chamber (112) by the hammer rod piston (12), the lower cylinder chamber (112) is communicated to the hydraulic source through the control valve, and the upper cylinder chamber (111) is communicated with an oil drainage channel or the hydraulic source through the control valve in a switchable manner, wherein the control valve is connected to the bottom of the side edge of the machine body.
Description
Technical field
The utility model relates to the forging hammer using in a kind of forging industry, particularly relates to a kind of forging hammer that utilizes hydraulic-driven and operation.
Background technology
At present, existing oil-to-oil electro-hydraulic hammer, general is all that a hammer stem piston is set in the cylinder liner in fuselage, cylinder liner is divided into He Xiagang chamber, upper cylinder half chamber by hammer stem piston, lower cylinder chamber leads to hydraulic oil, the control of the controlled valve in upper cylinder half chamber can be connected respectively hydraulic oil or oil drain passage, and hammer stem piston moves downward or upward because of the stressed difference of both sides.Current oil-to-oil electro-hydraulic hammer has the demand that uses new equipment, but also have very large demand is to transform on the basis of original steaming hollow hammer or liquid pneumatic hammer equipment simultaneously, this kind equipment of transformation generally can run into two problems at present, if one is exactly the top that control valve is arranged on to equipment, can be not easy to workman and keeps in repair and safeguard.Another one problem is, little compared with the general hydraulic system hydraulic flow adopting of the forging hammer of small dimension, so the control valve diameter that they use is also less, stir the required power of control valve also less, can pass through lever direct pull control valve, but the hammer that need to carry out high-pressure high-flow conversion for some, the diameter of control valve and size will be larger, handle the required power of control valve also larger, will become very difficult so manipulate them directly with manpower.The applicant is 201220344615.2 at the application number proposing before, Granted publication number for CN202725910U, Granted publication day be that the Chinese utility model patent on February 13rd, 2013 discloses a kind of main control valve side putting type oil-to-oil electro-hydraulic hammer, it is arranged on control valve the tip position of fuselage side, spool stretches out down, although it can reduce the power for handling control valve, but, the height of control valve is higher, is not easy to carry out detachable maintaining in the time breaking down.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of other vertical-type oil-to-oil electro-hydraulic hammer of putting of main control valve of being convenient to control valve to carry out detachable maintaining.
The other vertical-type oil-to-oil electro-hydraulic hammer of putting of the utility model main control valve, comprise fuselage, hydraulic power source and control valve, in described fuselage, be provided with cylinder liner, in cylinder liner, slidably connect hammer stem piston, cylinder liner is divided into He Xiagang chamber, upper cylinder half chamber by hammer stem piston, described lower cylinder chamber is communicated to described hydraulic power source through described control valve, and described upper cylinder half chamber is switchably communicated with oil drain passage or described hydraulic power source through described control valve, and wherein said control valve is connected to the bottom position of described fuselage side.
The other vertical-type oil-to-oil electro-hydraulic hammer of putting of the utility model main control valve, wherein said control valve comprises valve body, on the lateral wall of valve body, be provided with successively from top to bottom and drive inlet, liquid outlet, execution the first through hole, on the lower surface of described valve body, be also provided with and carry out the second through hole;
In described valve body, slidably connect driving servo valve, drive servo valve to comprise interconnective driving servo valve upper boom, piston and driving servo valve lower beam from top to bottom, between the upper surface of driving servo valve upper boom and described valve body, form and drive servo valve epicoele, the inherent medium position side that drives servo valve upper boom of valve body is provided with driving servo valve lumen, drives inlet to be communicated to and drives servo valve lumen; Between the both sides up and down of piston and the inwall of valve body, form respectively piston upper chamber and piston cavity of resorption, piston cavity of resorption is communicated to liquid outlet, and described driving servo valve upper boom is provided with and drives servo valve upper boom hole, drives servo valve upper boom hole to be communicated to and drives servo valve lumen; Drive on servo valve upper boom and be provided with intercommunicating pore on piston in the position near piston upside; Drive on servo valve lower beam and be provided with intercommunicating pore under piston in the position near piston underside;
In described driving servo valve, be provided with spool chamber, slidably connect spool in spool chamber, spool upper end passes valve body; Spool lower end is provided with the spool hollow channel of lower ending opening, is provided with successively the spool connectivity slot of spool intercommunicating pore and an indent on spool sidewall from top to bottom, and spool intercommunicating pore is communicated with driving servo valve epicoele and spool hollow channel; The width of spool connectivity slot is greater than the distance between intercommunicating pore on driving servo valve upper boom hole and piston;
In described valve body, also slidably connect execution servo valve, carry out servo valve and be positioned at the below that drives servo valve, between the lower end of execution servo valve and valve interior wall, form and carry out servo valve cavity of resorption, carry out the second through hole and be communicated to execution servo valve cavity of resorption, between the upper end of execution servo valve and valve interior wall, form and carry out servo valve epicoele, the sidewall of carrying out servo valve is provided with the execution servo valve groove of an indent, carrying out servo valve groove is communicated with described execution the first through hole, carry out the execution servo valve hollow channel that is provided with lower ending opening in servo valve, the upper surface of carrying out servo valve is provided with to be communicated with carries out servo valve epicoele and the execution servo valve intercommunicating pore of carrying out servo valve hollow channel, on the upper surface of execution servo valve, protrude upward and carried out servo valve push rod, between piston cavity of resorption and execution servo valve epicoele, be provided with and be communicated with Ding road each other, carrying out servo valve push rod sealed sliding is automatically connected in road, described top, annular projection's area of described execution servo valve groove upper side wall is greater than annular projection's area of carrying out servo valve groove lower wall, and the difference that annular projection's area of carrying out servo valve groove upper side wall deducts annular projection's area of carrying out servo valve groove lower wall is less than annular projection's area of described piston upper side,
On the wall that described valve body is inherent and execution servo valve is slidably connected, be provided with from top to bottom and carry out third through-hole and carry out fourth hole, carrying out third through-hole is communicated with upper cylinder half chamber liquid in-out mouth, carrying out fourth hole is communicated with lower cylinder chamber, described liquid outlet and execution the second through hole are all communicated to oil drain passage, and described driving inlet and execution the first through hole are all communicated to described hydraulic power source.
The utility model main control valve is other puts vertical-type oil-to-oil electro-hydraulic hammer, and wherein said control valve comprises valve body, is provided with successively from top to bottom and drives inlet and carry out the first through hole on the lateral wall of valve body, is also provided with and carries out the second through hole on the lower surface of described valve body;
In described valve body, slidably connect driving servo valve, drive servo valve to comprise interconnective driving servo valve upper boom, piston and driving servo valve lower beam from top to bottom, between the upper surface of driving servo valve upper boom and described valve body, form and drive servo valve epicoele, the inherent medium position side that drives servo valve upper boom of valve body is provided with driving servo valve lumen, drives inlet to be communicated to and drives servo valve lumen; Between the both sides up and down of piston and the inwall of valve body, form respectively piston upper chamber and piston cavity of resorption, described driving servo valve upper boom is provided with and drives servo valve upper boom hole, drives servo valve upper boom hole to be communicated to and drives servo valve lumen; Drive on servo valve upper boom and be provided with intercommunicating pore on piston in the position near piston upside; Drive on servo valve lower beam and be provided with intercommunicating pore under piston in the position near piston underside;
In described driving servo valve, be provided with spool chamber, slidably connect spool in spool chamber, spool upper end passes valve body; Spool lower end is provided with the spool hollow channel of lower ending opening, is provided with successively the spool connectivity slot of spool intercommunicating pore and an indent on spool sidewall from top to bottom, and spool intercommunicating pore is communicated with driving servo valve epicoele and spool hollow channel; The width of spool connectivity slot is greater than the distance between intercommunicating pore on driving servo valve upper boom hole and piston;
In described valve body, also slidably connect execution servo valve, carry out servo valve and be positioned at the below that drives servo valve, between the lower end of execution servo valve and valve interior wall, form and carry out servo valve cavity of resorption, carry out the second through hole and be communicated to execution servo valve cavity of resorption, between the upper end of execution servo valve and valve interior wall, form and carry out servo valve epicoele, the sidewall of carrying out servo valve is provided with the execution servo valve groove of an indent, carrying out servo valve groove is communicated with described execution the first through hole, carry out the execution servo valve hollow channel that is provided with lower ending opening in servo valve, the upper surface of carrying out servo valve is provided with to be communicated with carries out servo valve epicoele and the execution servo valve intercommunicating pore of carrying out servo valve hollow channel, on the upper surface of execution servo valve, protrude upward and carried out servo valve push rod, in servo valve push rod, be provided with and be communicated with spool chamber and the servo valve push rod passage of carrying out servo valve hollow channel, between piston cavity of resorption and execution servo valve epicoele, be provided with and be communicated with Ding road each other, carrying out servo valve push rod sealed sliding is automatically connected in road, described top, annular projection's area of described execution servo valve groove upper side wall is greater than annular projection's area of carrying out servo valve groove lower wall, and the difference that annular projection's area of carrying out servo valve groove upper side wall deducts annular projection's area of carrying out servo valve groove lower wall is less than annular projection's area of described piston upper side,
On the wall that described valve body is inherent and execution servo valve is slidably connected, be provided with from top to bottom and carry out third through-hole and carry out fourth hole, carrying out third through-hole is communicated with upper cylinder half chamber liquid in-out mouth, carrying out fourth hole is communicated with lower cylinder chamber, described execution the second through hole is communicated to oil drain passage, and described driving inlet and execution the first through hole are all communicated to described hydraulic power source.
The utility model main control valve is other puts vertical-type oil-to-oil electro-hydraulic hammer, wherein:
In the time that described execution servo valve is positioned at medium position in described valve body, described execution third through-hole is by the shutoff of described execution servo valve, and described execution fourth hole is communicated with described execution servo valve groove;
After described execution servo valve is up by medium position in described valve body, described execution third through-hole and execution fourth hole are all communicated with described execution servo valve groove;
After described execution servo valve is descending by medium position in described valve body, described execution fourth hole is communicated with described execution servo valve groove, and described execution third through-hole is communicated with described execution servo valve epicoele.
The utility model main control valve is other puts vertical-type oil-to-oil electro-hydraulic hammer, wherein:
In the time that described execution servo valve is positioned at medium position in described valve body, described execution third through-hole and execution fourth hole are all by the shutoff of described execution servo valve;
After described execution servo valve is up by medium position in described valve body, described execution third through-hole is communicated with described execution servo valve groove, and described execution fourth hole is communicated with described execution servo valve cavity of resorption;
After described execution servo valve is descending by medium position in described valve body, described execution fourth hole is communicated with described execution servo valve groove, and described execution third through-hole is communicated with described execution servo valve epicoele.
The utility model main control valve is other puts vertical-type oil-to-oil electro-hydraulic hammer, between wherein said execution the second through hole and oil drain passage, is connected with hydraulic control one-way valve.
The utility model main control valve is other puts vertical-type oil-to-oil electro-hydraulic hammer, between wherein said execution the second through hole and oil drain passage, is connected with hydraulic control one-way valve.
The other vertical-type oil-to-oil electro-hydraulic hammer of putting of the utility model main control valve, wherein said hydraulic power source comprises the fuel tank, pump, check valve, accumulator stop valve and the accumulator that connect successively, the turnover two ends of described pump are parallel with unloading electromagnetic valve, and described driving inlet and execution the first through hole are all communicated to the connecting line between check valve and accumulator stop valve;
Described accumulator stop valve comprises stop valve body, in stop valve body, be provided with stop valve spool chamber and liquid in-out passage, the axis that liquid in-out passage runs through stop valve spool chamber and liquid in-out passage is vertical with the axis of stop valve spool chamber, in stop valve spool chamber, slidably connect stop valve spool, stop valve spool comprises the round plate connecting successively, connecting rod portion, cylindrical portion, projecting ring section and extension, the equal diameters of round plate and cylindrical portion, and the diameter of cylindrical portion is greater than the diameter of described liquid in-out passage, the diameter of projecting ring section is less than the diameter of cylindrical portion and is greater than the diameter of extension, the width of cylindrical portion is greater than the diameter of liquid in-out passage, extension is from protruding in described stop valve body, round plate away from forming the first chamber between the end face of connecting rod portion and the inwall of stop valve body, stop valve body is provided with the first accessory channel that is communicated to the first chamber, between the end face of the close projecting ring section of cylindrical portion and the inwall of stop valve body, form the second chamber, stop valve body is provided with the second accessory channel that is communicated to the second chamber, one end of described liquid in-out passage and the first accessory channel are all communicated with the outlet end of described check valve, the other end of described liquid in-out passage and the second accessory channel are all communicated to described accumulator.
The other vertical-type oil-to-oil electro-hydraulic hammer of putting of the utility model main control valve, wherein said hydraulic power source comprises the fuel tank, pump, check valve, accumulator stop valve and the accumulator that connect successively, the turnover two ends of described pump are parallel with unloading electromagnetic valve, and described driving inlet and execution the first through hole are all communicated to the connecting line between check valve and accumulator stop valve;
Described accumulator stop valve comprises stop valve body, in stop valve body, be provided with stop valve spool chamber and liquid in-out passage, the axis that liquid in-out passage runs through stop valve spool chamber and liquid in-out passage is vertical with the axis of stop valve spool chamber, in stop valve spool chamber, slidably connect stop valve spool, stop valve spool comprises the round plate connecting successively, connecting rod portion, cylindrical portion, projecting ring section and extension, the equal diameters of round plate and cylindrical portion, and the diameter of cylindrical portion is greater than the diameter of described liquid in-out passage, the diameter of projecting ring section is less than the diameter of cylindrical portion and is greater than the diameter of extension, the width of cylindrical portion is greater than the diameter of liquid in-out passage, extension is from protruding in described stop valve body, round plate away from forming the first chamber between the end face of connecting rod portion and the inwall of stop valve body, stop valve body is provided with the first accessory channel that is communicated to the first chamber, between the end face of the close projecting ring section of cylindrical portion and the inwall of stop valve body, form the second chamber, stop valve body is provided with the second accessory channel that is communicated to the second chamber, one end of described liquid in-out passage and the first accessory channel are all communicated with the outlet end of described check valve, the other end of described liquid in-out passage and the second accessory channel are all communicated to described accumulator.
The other vertical-type oil-to-oil electro-hydraulic hammer difference from prior art of putting of the utility model main control valve is that the other control valve of putting in vertical-type oil-to-oil electro-hydraulic hammer of the utility model main control valve is connected to the bottom position of fuselage side, reduce like this height of control valve, thereby be convenient to control valve to carry out dismounting, maintenance.
Other the putting in vertical-type oil-to-oil electro-hydraulic hammer of the utility model main control valve withstands by driving servo valve and these two discrete parts of execution servo valve the switching that promotes to realize hydraulic path in control valve mutually, can reduce the requirement to parts axiality while manufacture.Carry out can reduce to promote hammer stem while being connected with hydraulic control one-way valve between the second through hole and oil drain passage time the inertia of hydraulic oil emptying.Other the putting in vertical-type oil-to-oil electro-hydraulic hammer of the utility model main control valve improved hydraulic power source, used the more simple accumulator stop valve of structure.
Below in conjunction with accompanying drawing, vertical-type oil-to-oil electro-hydraulic hammer being put in the utility model main control valve side is described further.
Accompanying drawing explanation
Fig. 1 is the other cutaway view of putting first embodiment of vertical-type oil-to-oil electro-hydraulic hammer of the utility model main control valve;
Fig. 2 is the other cutaway view of putting control valve in first embodiment of vertical-type oil-to-oil electro-hydraulic hammer of the utility model main control valve;
Fig. 3 is that the control valve cutaway view after the spool of stirring control valve in first embodiment of vertical-type oil-to-oil electro-hydraulic hammer is downwards put on the utility model main control valve side;
Fig. 4 is that the control valve cutaway view after the spool of upwards stirring control valve in first embodiment of vertical-type oil-to-oil electro-hydraulic hammer is put on the utility model main control valve side;
Fig. 5 is the other cutaway view of putting accumulator stop valve in first embodiment of vertical-type oil-to-oil electro-hydraulic hammer of the utility model main control valve;
Fig. 6 is the other cutaway view of putting second embodiment of vertical-type oil-to-oil electro-hydraulic hammer of the utility model main control valve;
Fig. 7 is the other cutaway view of putting control valve in second embodiment of vertical-type oil-to-oil electro-hydraulic hammer of the utility model main control valve;
Fig. 8 is the other cutaway view of putting control valve in the 3rd embodiment of vertical-type oil-to-oil electro-hydraulic hammer of the utility model main control valve.
The specific embodiment
Other first embodiment of vertical-type oil-to-oil electro-hydraulic hammer that puts of the utility model main control valve as shown in Figure 1, in fuselage 1, be provided with cylinder liner 11, in cylinder liner 11, slidably connect hammer stem piston 12, cylinder liner 11 is interior is divided into upper cylinder half chamber 111 and lower cylinder chamber 112 by hammer stem piston 12, on the lower surface of hammer stem piston 12, be connected with hammer stem 121, hammer stem 121 stretches out downwards fuselage 1 from fuselage 1 is interior, the lower end of hammer stem 121 is connected with tup (tup is not shown in the drawings), cylinder liner 11 is provided with upper cylinder half chamber liquid in-out mouth 113, upper cylinder half chamber liquid in-out mouth 113 is communicated with upper cylinder half chamber 111, the top of the inherent cylinder liner 11 of fuselage 1 is provided with damper piston chamber 13, in damper piston chamber 13, slidably connect damper piston 131, on damper piston 131, be extended with fore-set 1311 downwards, fore-set 1311 stretches in upper cylinder half chamber 111, the bottom position of fuselage 1 side is connected with control valve, control valve comprises valve body 21, as shown in Figure 2, on the lateral wall of valve body 21, be provided with successively from top to bottom and drive inlet 211, liquid outlet 212, carry out the first through hole 213, the lower surface of valve body 21 is provided with carries out the second through hole 214, in valve body 21, slidably connect and drive servo valve 22, drive servo valve 22 to comprise interconnective driving servo valve upper boom 221 from top to bottom, piston 222 and driving servo valve lower beam 223, between the upper surface of driving servo valve upper boom 221 and valve body 21, form and drive servo valve epicoele 25, the inherent medium position side that drives servo valve upper boom 221 of valve body 21 is provided with driving servo valve lumen 26, drive inlet 211 to be communicated to and drive servo valve lumen 26, between the both sides up and down of piston 222 and the inwall of valve body 21, form respectively piston upper chamber 27 and piston cavity of resorption 28, piston cavity of resorption 28 is communicated to liquid outlet 212, drive servo valve upper boom 221 to be provided with and drive servo valve upper boom hole 2211, drive servo valve upper boom hole 2211 to be communicated to and drive servo valve lumen 26, drive on servo valve upper boom 221 and be provided with intercommunicating pore 2212 on piston in the position near piston 222 upsides, drive on servo valve lower beam 223 and be provided with intercommunicating pore 2231 under piston in the position near piston 222 downsides, drive in servo valve 22 and be provided with spool chamber, slidably connect spool 23 in spool chamber, spool 23 upper ends pass valve body 21, spool 23 lower ends are provided with the spool hollow channel 231 of lower ending opening, are provided with successively the spool connectivity slot 233 of spool intercommunicating pore 232 and an indent on spool 23 sidewalls from top to bottom, and spool intercommunicating pore 232 is communicated with driving servo valve epicoele 25 and spool hollow channel 231, the width of spool connectivity slot 233 is greater than the distance between intercommunicating pore 2212 on driving servo valve upper boom hole 2211 and piston.In valve body 21, also slidably connect and carry out servo valve 24, carry out servo valve 24 and be positioned at the below that drives servo valve 22, between the lower end of execution servo valve 24 and valve body 21 inwalls, form and carry out servo valve cavity of resorption 29, carry out the second through hole 214 and be communicated to execution servo valve cavity of resorption 29, between the upper end of execution servo valve 24 and valve body 21 inwalls, form and carry out servo valve epicoele 210, the sidewall of carrying out servo valve 24 is provided with the execution servo valve groove 241 of an indent, carrying out servo valve groove 241 is communicated with execution the first through hole 213, carry out the execution servo valve hollow channel 242 that is provided with lower ending opening in servo valve 24, the upper surface of carrying out servo valve 24 is provided with to be communicated with carries out servo valve epicoele 210 and the execution servo valve intercommunicating pore 243 of carrying out servo valve hollow channel 242, on the upper surface of execution servo valve 24, protrude upward and carried out servo valve push rod 244, between piston cavity of resorption 28 and execution servo valve epicoele 210, be provided with and be communicated with Ding road each other, carrying out servo valve push rod 244 sealed sliding is automatically connected in Gai Ding road, on the wall that valve body 21 is inherent and execution servo valve 24 is slidably connected, be provided with from top to bottom and carry out third through-hole 215 and carry out fourth hole 216, carrying out third through-hole 215 is communicated with upper cylinder half chamber liquid in-out mouth 113, carrying out fourth hole 216 is communicated with lower cylinder chamber 112.Referring to Fig. 2, in the present embodiment, also have as after position relationship: when carrying out servo valve 24 be positioned at medium position in valve body 21 time, carry out third through-hole 215 and be performed servo valve 24 shutoff, carry out fourth hole 216 and be communicated with execution servo valve groove 241; After execution servo valve 24 is up by medium position in valve body 21, carries out third through-hole 215 and execution fourth hole 216 and be all communicated with execution servo valve groove 241; After execution servo valve 24 is descending by medium position in valve body 21, carry out fourth hole 216 and be communicated with execution servo valve groove 241, carry out third through-hole 215 and be communicated with execution servo valve epicoele 210.
Also comprise hydraulic power source, hydraulic power source comprises the fuel tank 31, pump 32, check valve 33, accumulator stop valve 34 and the accumulator 35 that connect successively, also comprises the unloading electromagnetic valve in parallel with pump 32 36,
Normally work in order to make control valve, annular projection's area of carrying out servo valve groove 241 upper side walls is greater than annular projection's area of carrying out servo valve groove 241 lower wall, and annular projection's area of carrying out servo valve groove 241 upper side walls difference of deducting annular projection's area of carrying out servo valve groove 241 lower wall is less than annular projection's area of piston 222 upper sides.
The course of work of the present embodiment is such: by pump 32, the hydraulic oil in fuel tank 31 is sent into accumulator 35 by check valve 33 through accumulator stop valve 34, between check valve 33 and accumulator stop valve 34, forming can be for the hydraulic power source of forging hammer work.As shown in Figure 3, stir spool 23 downwards, piston upper chamber 27 is successively by intercommunicating pore on piston 2212, spool connectivity slot 233, drive servo valve upper boom hole 2211, drive servo valve lumen 26 to be communicated to drive under inlet 211 and piston the passage between intercommunicating pore 2212 on intercommunicating pore 2231 and piston to be closed by spool 23, so piston upper chamber 27 is communicated with hydraulic oil, be communicated with hydraulic oil and carry out servo valve groove 241 through carrying out the first through hole 213, owing to carrying out annular projection's area of servo valve groove 241 upper side walls and deduct the difference of annular projection's area of carrying out servo valve groove 241 lower wall and be less than annular projection's area of piston 222 upper sides, so it is descending to drive servo valve will head on execution servo valve, after execution servo valve is descending, carry out third through-hole 215 by carrying out servo valve epicoele 210, carry out servo valve intercommunicating pore 243, carry out servo valve hollow channel 242 and be communicated to execution the second through hole 214, so upper cylinder half chamber 111 is just communicated to fuel tank 31 through hydraulic control one-way valve 4, and this at present cylinder chamber 112 through carrying out servo valve groove 241, carry out the first through hole 213 and be communicated with hydraulic oil, therefore hammer stem piston 12 is by up, because it is emptying that the existence of hydraulic control one-way valve 4 can reduce the inertia of upper cylinder half chamber 111.As shown in Figure 4, upwards stir spool 23, piston upper chamber and piston cavity of resorption all can be communicated to oil drain passage, because annular projection's area of carrying out servo valve groove 241 upper side walls is greater than annular projection's area of carrying out servo valve groove 241 lower wall, therefore carry out servo valve will head on drive servo valve up, after execution servo valve is up, upper cylinder half chamber 111 and lower cylinder chamber 112 all can be communicated with hydraulic oil by carrying out servo valve groove 241 and carrying out the first through hole 213, due to the difference in areas of hammer stem piston 12 upper and lower sides, hammer stem piston 12 is by descending.So move in circles and realize mentioning and hitting downwards of tup.
Because control valve in the present embodiment is positioned at the bottom position of fuselage side, highly lower, therefore, can be convenient to the detachable maintaining of control valve.Servo valve in the present embodiment in control valve is divided into driving servo valve and carries out servo valve two parts, can reduce the axiality of parts and manufacture requirement, is convenient to manufacture.
In the prior art, the structure of fuel tank 31, pump 32, check valve 33, accumulator 35 and unloading electromagnetic valve 36 and annexation dawn known to those skilled in the art in hydraulic power source, as the Chinese utility model patent that can be 201220344615.2 referring to application number.The present embodiment is further improved hydraulic power source, because accumulator 35 connects in the pipeline of check valve 33 pipeline near check valve 33 because high pressure is easier to occur damaging, in the present embodiment, in this pipeline, be connected with accumulator stop valve 34 near on the pipeline of accumulator 35, as shown in Figure 5, accumulator stop valve comprises stop valve body 341, in stop valve body 341, be provided with stop valve spool chamber and liquid in-out passage, the axis that liquid in-out passage runs through stop valve spool chamber and liquid in-out passage is vertical with the axis of stop valve spool chamber, in stop valve spool chamber, slidably connect stop valve spool, stop valve spool comprises the round plate 3421 connecting successively, connecting rod portion 3422, cylindrical portion 3423, projecting ring section 3424 and extension 3425, the equal diameters of round plate 3421 and cylindrical portion 3423, and the diameter of cylindrical portion 3423 is greater than the diameter of liquid in-out passage, the diameter of projecting ring section 3424 is less than the diameter of cylindrical portion 3423 and is greater than the diameter of extension 3425, the width of cylindrical portion 3423 is greater than the diameter of liquid in-out passage, extension 3425 is interior protruding from stop valve body 341, between the end face away from connecting rod portion 3422 of round plate 3421 and the inwall of stop valve body 341, form the first chamber 343, stop valve body 341 is provided with the first accessory channel 3411 that is communicated to the first chamber 343, between the end face of the close projecting ring section 3424 of cylindrical portion 3423 and the inwall of stop valve body 341, form the second chamber 344, stop valve body 341 is provided with the second accessory channel 3412 that is communicated to the second chamber 344, simultaneously referring to Fig. 1 and Fig. 5, one end 3414 of liquid in-out passage and the first accessory channel 3411 are all communicated with the outlet end of check valve 33, the other end 3413 of liquid in-out passage and the second accessory channel 3412 are all communicated to accumulator 35.
Referring to Fig. 5, the operation principle of the accumulator stop valve in the present embodiment is such, in the time that pipeline does not break down, the anchor ring that is greater than cylindrical portion 3423 its right end face due to the area of a circle of round plate 3421 left end face is long-pending, so stop valve spool is the right-hand member in stop valve spool chamber under hydraulic action, at this moment hydraulic oil flows through from accumulator stop valve through liquid in-out passage.When be connected with the outlet end of check valve conduit failure time, hydraulic fluid pressure in one end 3414 of liquid in-out passage and the first accessory channel 3411 reduces rapidly, at this moment in accumulator, also keeping high pressure, so higher hydraulic pressure of the interior all maintenances of the other end 3413 of liquid in-out passage and the second accessory channel 3412, so stop valve spool can move to the left end of stop valve spool chamber left under the effect of hydraulic oil, at this moment cylindrical portion 3423 is understood liquid in-out carrier frequency channel break, thereby makes the hydraulic oil in accumulator not leak in a large number and keep high pressure conditions.The accumulator stop valve structure adopting in the present embodiment is comparatively simple, convenient manufacture.
Figure 6 shows that other second embodiment that puts vertical-type oil-to-oil electro-hydraulic hammer of the utility model main control valve, the difference of itself and first embodiment is control valve part, specifically as shown in Figure 7, the difference of the control valve in the control valve in the present embodiment and first embodiment is: the lateral wall of valve body 21 is not provided with liquid outlet, the substitute is in servo valve push rod 244 and is provided with and is communicated with spool chamber and the servo valve push rod passage 2441 of carrying out servo valve hollow channel 242.28 of piston cavity of resorptions change into via intercommunicating pore under piston 2231, spool chamber, servo valve push rod passage 2441, execution servo valve hollow channel 242, execution servo valve cavity of resorption 29, execution the second through hole 214 and are communicated to oil drain passage like this.Control valve in its course of work and first embodiment identical, does not repeat them here.
As shown in Figure 8, the 3rd embodiment of vertical-type oil-to-oil electro-hydraulic hammer put on the utility model main control valve side and the difference of first embodiment is also control valve part, specifically be to carry out servo valve groove 241 and carry out third through-hole 215 and carry out the position relationship between fourth hole 216, in the present embodiment, in the time that execution servo valve 24 is positioned at medium position in valve body 21, carry out third through-hole 215 and carry out fourth hole 216 being all performed servo valve 24 shutoff; After execution servo valve 24 is up by medium position in valve body 21, carry out third through-hole 215 and be communicated with execution servo valve groove 241, carry out fourth hole 216 and be communicated with execution servo valve cavity of resorption 29; After execution servo valve 24 is descending by medium position in valve body 21, carry out fourth hole 216 and be communicated with execution servo valve groove 241, carry out third through-hole 215 and be communicated with execution servo valve epicoele 210.Like this, in the time that the present embodiment is worked, after execution servo valve 24 is up, carry out third through-hole 215 by carrying out servo valve groove 241, carry out the first through hole 213 and be communicated with hydraulic power source, carry out fourth hole 216 through carrying out servo valve cavity of resorption 29, carry out the second through hole 214 and be communicated with oil drain passage, therefore the upper cylinder half chamber in cylinder liner is communicated with hydraulic oil, lower cylinder chamber is communicated with oil drain passage, hydraulic oil makes hammer stem descent of piston to hammer stem piston action like this, this point is different from first embodiment, in first embodiment, be that He Xiagang chamber, upper cylinder half chamber is communicated with hydraulic oil simultaneously and makes hammer stem descent of piston.In the present embodiment, after execution servo valve 24 is descending, carry out fourth hole 216 and be communicated with hydraulic power source by execution servo valve groove 241, execution the first through hole 213, carry out third through-hole 215 and be communicated with execution servo valve epicoele 210, and execution servo valve epicoele 210 is always communicated with oil drain passage, so now, the lower cylinder chamber in cylinder liner has been communicated with hydraulic oil, and upper cylinder half chamber has been communicated with oil drain passage, so hammer stem piston is up under the effect of hydraulic oil.
Above-described embodiment is described preferred embodiment of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (9)
1. the other vertical-type oil-to-oil electro-hydraulic hammer of putting of main control valve, comprise fuselage (1), hydraulic power source and control valve, in described fuselage (1), be provided with cylinder liner (11), in cylinder liner (11), slidably connect hammer stem piston (12), cylinder liner (11) is divided into upper cylinder half chamber (111) and lower cylinder chamber (112) by hammer stem piston (12), described lower cylinder chamber (112) is communicated to described hydraulic power source through described control valve, described upper cylinder half chamber (111) is switchably communicated with oil drain passage or described hydraulic power source through described control valve, it is characterized in that: described control valve is connected to the bottom position of described fuselage side.
2. the other vertical-type oil-to-oil electro-hydraulic hammer of putting of main control valve according to claim 1, it is characterized in that: described control valve comprises valve body (21), on the lateral wall of valve body (21), be provided with successively from top to bottom and drive inlet (211), liquid outlet (212), carry out the first through hole (213), on the lower surface of described valve body (21), be also provided with and carry out the second through hole (214);
In described valve body (21), slidably connect and drive servo valve (22), drive servo valve (22) to comprise interconnective driving servo valve upper boom (221), piston (222) and driving servo valve lower beam (223) from top to bottom, between the upper surface of driving servo valve upper boom (221) and described valve body (21), form and drive servo valve epicoele (25), the inherent medium position side that drives servo valve upper boom (221) of valve body (21) is provided with driving servo valve lumen (26), drives inlet (211) to be communicated to and drives servo valve lumen (26); Between the inwall of the both sides up and down of piston (222) and valve body (21), form respectively piston upper chamber (27) and piston cavity of resorption (28), piston cavity of resorption (28) is communicated to liquid outlet (212), described driving servo valve upper boom (221) is provided with and drives servo valve upper boom hole (2211), drives servo valve upper boom hole (2211) to be communicated to and drives servo valve lumen (26); Drive the upper position at close piston (222) upside of servo valve upper boom (221) to be provided with intercommunicating pore on piston (2212); Drive the upper position at close piston (222) downside of servo valve lower beam (223) to be provided with intercommunicating pore under piston (2231);
In described driving servo valve (22), be provided with spool chamber, slidably connect spool (23) in spool chamber, spool (23) upper end passes valve body (21); Spool (23) lower end is provided with the spool hollow channel (231) of lower ending opening, on spool (23) sidewall, be provided with successively the spool connectivity slot (233) of spool intercommunicating pore (232) and an indent from top to bottom, spool intercommunicating pore (232) is communicated with driving servo valve epicoele (25) and spool hollow channel (231); The width of spool connectivity slot (233) is greater than the distance between intercommunicating pore (2212) on driving servo valve upper boom hole (2211) and piston;
In described valve body (21), also slidably connect and carry out servo valve (24), carry out servo valve (24) and be positioned at the below that drives servo valve (22), between the lower end of execution servo valve (24) and valve body (21) inwall, form and carry out servo valve cavity of resorption (29), carry out the second through hole (214) and be communicated to execution servo valve cavity of resorption (29), between the upper end of execution servo valve (24) and valve body (21) inwall, form and carry out servo valve epicoele (210), the sidewall of carrying out servo valve (24) is provided with the execution servo valve groove (241) of an indent, carrying out servo valve groove (241) is communicated with described execution the first through hole (213), carry out the execution servo valve hollow channel (242) that is provided with lower ending opening in servo valve (24), the upper surface of carrying out servo valve (24) is provided with to be communicated with carries out servo valve epicoele (210) and the execution servo valve intercommunicating pore (243) of carrying out servo valve hollow channel (242), on the upper surface of execution servo valve (24), protrude upward and carried out servo valve push rod (244), between piston cavity of resorption (28) and execution servo valve epicoele (210), be provided with and be communicated with Ding road each other, carrying out servo valve push rod (244) sealed sliding is automatically connected in road, described top, annular projection's area of described execution servo valve groove (241) upper side wall is greater than annular projection's area of carrying out servo valve groove (241) lower wall, and the difference that annular projection's area of carrying out servo valve groove (241) upper side wall deducts annular projection's area of carrying out servo valve groove (241) lower wall is less than annular projection's area of described piston (222) upper side,
On the wall that described valve body (21) is inherent and execution servo valve (24) is slidably connected, be provided with from top to bottom and carry out third through-hole (215) and carry out fourth hole (216), carrying out third through-hole (215) is communicated with upper cylinder half chamber liquid in-out mouth (113), carrying out fourth hole (216) is communicated with lower cylinder chamber (112), described liquid outlet (212) and execution the second through hole (214) are all communicated to oil drain passage, and described driving inlet (211) and execution the first through hole (213) are all communicated to described hydraulic power source.
3. the other vertical-type oil-to-oil electro-hydraulic hammer of putting of main control valve according to claim 1, it is characterized in that: described control valve comprises valve body (21), on the lateral wall of valve body (21), be provided with successively from top to bottom and drive inlet (211) and carry out the first through hole (213), on the lower surface of described valve body (21), be also provided with and carry out the second through hole (214);
In described valve body (21), slidably connect and drive servo valve (22), drive servo valve (22) to comprise interconnective driving servo valve upper boom (221), piston (222) and driving servo valve lower beam (223) from top to bottom, between the upper surface of driving servo valve upper boom (221) and described valve body (21), form and drive servo valve epicoele (25), the inherent medium position side that drives servo valve upper boom (221) of valve body (21) is provided with driving servo valve lumen (26), drives inlet (211) to be communicated to and drives servo valve lumen (26); Between the inwall of the both sides up and down of piston (222) and valve body (21), form respectively piston upper chamber (27) and piston cavity of resorption (28), described driving servo valve upper boom (221) is provided with and drives servo valve upper boom hole (2211), drives servo valve upper boom hole (2211) to be communicated to and drives servo valve lumen (26); Drive the upper position at close piston (222) upside of servo valve upper boom (221) to be provided with intercommunicating pore on piston (2212); Drive the upper position at close piston (222) downside of servo valve lower beam (223) to be provided with intercommunicating pore under piston (2231);
In described driving servo valve (22), be provided with spool chamber, slidably connect spool (23) in spool chamber, spool (23) upper end passes valve body (21); Spool (23) lower end is provided with the spool hollow channel (231) of lower ending opening, on spool (23) sidewall, be provided with successively the spool connectivity slot (233) of spool intercommunicating pore (232) and an indent from top to bottom, spool intercommunicating pore (232) is communicated with driving servo valve epicoele (25) and spool hollow channel (231); The width of spool connectivity slot (233) is greater than the distance between intercommunicating pore (2212) on driving servo valve upper boom hole (2211) and piston;
In described valve body (21), also slidably connect and carry out servo valve (24), carry out servo valve (24) and be positioned at the below that drives servo valve (22), between the lower end of execution servo valve (24) and valve body (21) inwall, form and carry out servo valve cavity of resorption (29), carry out the second through hole (214) and be communicated to execution servo valve cavity of resorption (29), between the upper end of execution servo valve (24) and valve body (21) inwall, form and carry out servo valve epicoele (210), the sidewall of carrying out servo valve (24) is provided with the execution servo valve groove (241) of an indent, carrying out servo valve groove (241) is communicated with described execution the first through hole (213), carry out the execution servo valve hollow channel (242) that is provided with lower ending opening in servo valve (24), the upper surface of carrying out servo valve (24) is provided with to be communicated with carries out servo valve epicoele (210) and the execution servo valve intercommunicating pore (243) of carrying out servo valve hollow channel (242), on the upper surface of execution servo valve (24), protrude upward and carried out servo valve push rod (244), in servo valve push rod (244), be provided with and be communicated with spool chamber and the servo valve push rod passage (2441) of carrying out servo valve hollow channel (242), between piston cavity of resorption (28) and execution servo valve epicoele (210), be provided with and be communicated with Ding road each other, carrying out servo valve push rod (244) sealed sliding is automatically connected in road, described top, annular projection's area of described execution servo valve groove (241) upper side wall is greater than annular projection's area of carrying out servo valve groove (241) lower wall, and the difference that annular projection's area of carrying out servo valve groove (241) upper side wall deducts annular projection's area of carrying out servo valve groove (241) lower wall is less than annular projection's area of described piston (222) upper side,
On the wall that described valve body (21) is inherent and execution servo valve (24) is slidably connected, be provided with from top to bottom and carry out third through-hole (215) and carry out fourth hole (216), carrying out third through-hole (215) is communicated with upper cylinder half chamber liquid in-out mouth (113), carrying out fourth hole (216) is communicated with lower cylinder chamber (112), described execution the second through hole (214) is communicated to oil drain passage, and described driving inlet (211) and execution the first through hole (213) are all communicated to described hydraulic power source.
4. put vertical-type oil-to-oil electro-hydraulic hammer according to the main control valve described in claim 2 or 3 is other, it is characterized in that:
In the time that described execution servo valve (24) is positioned at medium position in described valve body (21), described execution third through-hole (215) is by described execution servo valve (24) shutoff, and described execution fourth hole (216) is communicated with described execution servo valve groove (241);
After described execution servo valve (24) is up by medium position in described valve body (21), described execution third through-hole (215) and execution fourth hole (216) are all communicated with described execution servo valve groove (241);
After described execution servo valve (24) is descending by medium position in described valve body (21), described execution fourth hole (216) is communicated with described execution servo valve groove (241), and described execution third through-hole (215) is communicated with described execution servo valve epicoele (210).
5. put vertical-type oil-to-oil electro-hydraulic hammer according to the main control valve described in claim 2 or 3 is other, it is characterized in that:
In the time that described execution servo valve (24) is positioned at medium position in described valve body (21), described execution third through-hole (215) and execution fourth hole (216) are all by described execution servo valve (24) shutoff;
After described execution servo valve (24) is up by medium position in described valve body (21), described execution third through-hole (215) is communicated with described execution servo valve groove (241), and described execution fourth hole (216) is communicated with described execution servo valve cavity of resorption (29);
After described execution servo valve (24) is descending by medium position in described valve body (21), described execution fourth hole (216) is communicated with described execution servo valve groove (241), and described execution third through-hole (215) is communicated with described execution servo valve epicoele (210).
6. main control valve according to claim 4 is other puts vertical-type oil-to-oil electro-hydraulic hammer, it is characterized in that: between described execution the second through hole (214) and oil drain passage, be connected with hydraulic control one-way valve (4).
7. main control valve according to claim 5 is other puts vertical-type oil-to-oil electro-hydraulic hammer, it is characterized in that: between described execution the second through hole (214) and oil drain passage, be connected with hydraulic control one-way valve (4).
8. the other vertical-type oil-to-oil electro-hydraulic hammer of putting of main control valve according to claim 6, it is characterized in that: described hydraulic power source comprises the fuel tank (31), pump (32), check valve (33), accumulator stop valve (34) and the accumulator (35) that connect successively, the turnover two ends of described pump (32) are parallel with unloading electromagnetic valve (36), and described driving inlet (211) and execution the first through hole (213) are all communicated to the connecting line between check valve (33) and accumulator stop valve (34);
Described accumulator stop valve (34) comprises stop valve body (341), in stop valve body (341), be provided with stop valve spool chamber and liquid in-out passage, the axis that liquid in-out passage runs through stop valve spool chamber and liquid in-out passage is vertical with the axis of stop valve spool chamber, in stop valve spool chamber, slidably connect stop valve spool, stop valve spool comprises the round plate (3421) connecting successively, connecting rod portion (3422), cylindrical portion (3423), projecting ring section (3424) and extension (3425), the equal diameters of round plate (3421) and cylindrical portion (3423), and the diameter of cylindrical portion (3423) is greater than the diameter of described liquid in-out passage, the diameter of projecting ring section (3424) is less than the diameter of cylindrical portion (3423) and is greater than the diameter of extension (3425), the width of cylindrical portion (3423) is greater than the diameter of liquid in-out passage, extension (3425) is interior protruding from described stop valve body (341), between the end face away from connecting rod portion (3422) of round plate (3421) and the inwall of stop valve body (341), form the first chamber (343), stop valve body (341) is provided with the first accessory channel (3411) that is communicated to the first chamber (343), between the end face of the close projecting ring section (3424) of cylindrical portion (3423) and the inwall of stop valve body (341), form the second chamber (344), stop valve body (341) is provided with the second accessory channel (3412) that is communicated to the second chamber (344), one end (3414) of described liquid in-out passage and the first accessory channel (3411) are all communicated with the outlet end of described check valve (33), the other end (3413) and second accessory channel (3412) of described liquid in-out passage are all communicated to described accumulator (35).
9. the other vertical-type oil-to-oil electro-hydraulic hammer of putting of main control valve according to claim 7, it is characterized in that: described hydraulic power source comprises the fuel tank (31), pump (32), check valve (33), accumulator stop valve (34) and the accumulator (35) that connect successively, the turnover two ends of described pump (32) are parallel with unloading electromagnetic valve (36), and described driving inlet (211) and execution the first through hole (213) are all communicated to the connecting line between check valve (33) and accumulator stop valve (34);
Described accumulator stop valve (34) comprises stop valve body (341), in stop valve body (341), be provided with stop valve spool chamber and liquid in-out passage, the axis that liquid in-out passage runs through stop valve spool chamber and liquid in-out passage is vertical with the axis of stop valve spool chamber, in stop valve spool chamber, slidably connect stop valve spool, stop valve spool comprises the round plate (3421) connecting successively, connecting rod portion (3422), cylindrical portion (3423), projecting ring section (3424) and extension (3425), the equal diameters of round plate (3421) and cylindrical portion (3423), and the diameter of cylindrical portion (3423) is greater than the diameter of described liquid in-out passage, the diameter of projecting ring section (3424) is less than the diameter of cylindrical portion (3423) and is greater than the diameter of extension (3425), the width of cylindrical portion (3423) is greater than the diameter of liquid in-out passage, extension (3425) is interior protruding from described stop valve body (341), between the end face away from connecting rod portion (3422) of round plate (3421) and the inwall of stop valve body (341), form the first chamber (343), stop valve body (341) is provided with the first accessory channel (3411) that is communicated to the first chamber (343), between the end face of the close projecting ring section (3424) of cylindrical portion (3423) and the inwall of stop valve body (341), form the second chamber (344), stop valve body (341) is provided with the second accessory channel (3412) that is communicated to the second chamber (344), one end (3414) of described liquid in-out passage and the first accessory channel (3411) are all communicated with the outlet end of described check valve (33), the other end (3413) and second accessory channel (3412) of described liquid in-out passage are all communicated to described accumulator (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657534.2U CN203610575U (en) | 2013-10-23 | 2013-10-23 | Full-hydraulic electro-hydraulic hammer with main control valve positioned aside and vertically placed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657534.2U CN203610575U (en) | 2013-10-23 | 2013-10-23 | Full-hydraulic electro-hydraulic hammer with main control valve positioned aside and vertically placed |
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| Publication Number | Publication Date |
|---|---|
| CN203610575U true CN203610575U (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320657534.2U Expired - Fee Related CN203610575U (en) | 2013-10-23 | 2013-10-23 | Full-hydraulic electro-hydraulic hammer with main control valve positioned aside and vertically placed |
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| Country | Link |
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| CN (1) | CN203610575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909417A (en) * | 2019-04-28 | 2019-06-21 | 洛阳轩飞机械设备有限公司 | A kind of assemble method of electromagnetic hammer power head |
-
2013
- 2013-10-23 CN CN201320657534.2U patent/CN203610575U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909417A (en) * | 2019-04-28 | 2019-06-21 | 洛阳轩飞机械设备有限公司 | A kind of assemble method of electromagnetic hammer power head |
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Granted publication date: 20140528 Termination date: 20181023 |