Improved pressure diaphragm pump for pressure spray granulation of soft magnetic ferrite
Technical Field
The utility model belongs to soft magnetic ferrite pressure spray granulation manufacturing process, especially an improved generation soft magnetic ferrite pressure diaphragm pump for spray granulation.
Background
In the process of pressure spray granulation of the soft magnetic ferrite, parameters of ferrite molding particles are required to be controlled in a certain refined parameter process in order to obtain a high-quality ferrite product, and the parameters comprise: loose specific gravity, particle size distribution, water content and ferrite molding particle fluidity; the existing mechanical granulation can not ensure that ferrite particles can reach the four refined parameters, and a pressure diaphragm pump is usually adopted to spray-dry slurry of ferrite products to obtain formed particles. In the in-service use process pressure diaphragm pump drives the plunger and makes back and forth movement under the drive of speed reducer, when the plunger return stroke through hydraulic oil extrusion diaphragm, hydraulic oil drives the diaphragm and returns and inhales the pump head with the ground paste from the feed valve, after the return stroke, the feed valve is closed, extrude the ground paste from the bleeder valve during the process, consequently lack the device to diaphragm speed governing and to the ground paste pressure regulating consequently long-term use can cause the indefinite breakdown of diaphragm, seriously influence normal production process, and the pressure in the spray granulation in-process ground paste pipe is big with the inside pressure difference in the spray back material pipe before the spraying, make the dispersion of granulation granule particle diameter and flow parameter be difficult to the control.
Disclosure of Invention
The purpose of the invention is as follows: the improved pressure diaphragm pump for pressure spray granulation of the soft magnetic ferrite is provided to solve the problems in the prior art.
The technical scheme is as follows: the improved pressure diaphragm pump for pressure spray granulation of the soft magnetic ferrite comprises:
the four pump body assemblies are symmetrically arranged at two ends of the top of the frame, the feeding pipes are fixedly arranged on the frame and are communicated with the four pump body assemblies, the discharging pipes are fixedly arranged at output ports of the four pump body assemblies, the crankcase group is fixedly arranged between the two pump bodies, the speed reducing assembly is fixedly arranged at the center of the top of the frame, the couplers are arranged at two sides of the speed reducing assembly and are connected with the crankcase, and the air buffer is fixedly connected to one end of the discharging pipes;
the four pump body assemblies respectively comprise a first pump body, a second pump body, a third pump body and a fourth pump body which are fixedly installed on the rack.
In a further embodiment, the first, second, third and fourth pumps each comprise therein: the device comprises a pump body shell, a plunger rod, a diaphragm return in-place crank arm, a diaphragm positioning screen, a diaphragm sheet and a pump head assembly, wherein the plunger rod is inserted into one end of the pump body shell;
in a further embodiment, the pump head assembly comprises: the pump head casing at pump body casing edge is fixed to the spiro union, set up in pump head casing bottom and with the feeding disk seat of inlet pipe intercommunication to and cup joint at pump head casing top one end and with the ejection of compact disk seat of discharging pipe intercommunication.
In a further embodiment, the crankcase assembly comprises: a first crankcase disposed between the first pump body and the second pump body, and a second crankcase disposed between the third pump body and the fourth pump body.
In a further embodiment, overflow valve groups are fixedly arranged at the tops of the four pump body assemblies, and each overflow valve group comprises an overflow valve group; the oil replenishing pump comprises a mounting shell fixedly mounted on four pump body assemblies, a pressure relief valve pressure spring embedded in the shell, a pressure relief valve piston connected to one end of the pressure relief valve pressure spring, a pressure one-way valve sleeved at the output end of the pressure relief valve piston and an oil replenishing valve ejector rod sleeved at the output end of the pressure one-way valve; the inside of overflow valves is filled with hydraulic oil, the other end fixed connection diaphragm return stroke of oil supplementing valve ejector pin puts in place the turning arm, and when pump body internal pressure was less than the pressure check valve, and then the diaphragm return stroke put in place the turning arm drive oil supplementing valve ejector pin downstream, and then drive pressure check valve and relief valve piston and the motion of relief valve pressure spring, replenish hydraulic oil to pump body inside fast, finally realize the adjustment to the pressure value of diaphragm.
In a further embodiment, the speed reduction assembly comprises: the transmission device comprises a driving motor fixedly arranged on the rack, a transmission device sleeved on an output wheel of the driving motor, and a speed reducer case fixedly arranged on the rack; the speed reducer case is provided with double output shafts; the input shaft of the speed reducer case is sleeved at the other end of the transmission device; two groups of output shafts of the speed reducer case are in transmission connection with the crank case groups on two sides through couplers; and then the power of the driving motor drives the crankcase to transmit through the transmission device and the speed reducer case.
In a further embodiment, the first and second crankcases each comprise: with pump body casing fixed mounting at the box, alternate at the box and with the transmission shaft that the shaft coupling transmission is connected to and the camshaft box of fixed connection in the one end of transmission shaft, the opening that can supply the plunger rod to alternate is seted up to the both sides of camshaft box, and the top dead center position of camshaft staggers 90 each other in two sets of camshaft boxes, and then two sets of transmission shafts drive two sets of camshafts respectively and rotate in the camshaft box, and then drive four groups plunger rod alternate effects at two sets of camshafts both ends, finally realize four pump body subassemblies and work in turn.
Has the advantages that: the utility model discloses a 90 stagger each other in the top dead center position of camshaft in two sets of camshaft boxes, and then two sets of transmission shafts drive two sets of camshafts respectively and rotate in the camshaft box, and then drive four group's plunger rod alternate action at two sets of camshaft both ends, stabilize the flow velocity of flow and the regular pressure fluctuation of ground paste in inlet pipe and the discharging pipe, improve the quality of granule material, improve granule material mobility, improve the shaping qualification rate of dysmorphism blank. Secondly, the pressure of the diaphragm between the four pump bodies is controlled through the overflow valve group, so that the diaphragm works in a balanced state all the time, the operation stability of equipment is improved, the influence of equipment faults on the production progress is eliminated, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a pressure diaphragm pump for pressure spray granulation of the improved soft magnetic ferrite.
Fig. 2 is a front view of the improved pressure diaphragm pump for pressure spray granulation of soft magnetic ferrite.
Fig. 3 is a right side view of the improved pressure diaphragm pump for pressure spray granulation of soft magnetic ferrite.
Fig. 4 is a sectional view of the improved pressure diaphragm pump for pressure spray granulation of soft magnetic ferrite.
The reference signs are: the pump comprises a frame 1, a pump body assembly 2, a first pump body 20, a pump body shell 200, a plunger rod 201, a diaphragm return-to-position crank arm 202, a diaphragm positioning screen 203, a diaphragm 204, a second pump body 21, a third pump body 22, a fourth pump body 23, a pump head assembly 24, a pump head shell 240, a feeding valve seat 241, a discharging valve seat 242, a feeding pipe 3, a discharging pipe 4, a first crankcase 50, a second crankcase 51, a box body 52, a transmission shaft 53, a camshaft box 54, a speed reducing assembly 6, a driving motor 60, a transmission device 61, a speed reducing box 62, a coupler 7, an air buffer 8, a overflow valve group 9, a mounting shell 90, a pressure relief valve pressure spring 91, a pressure relief valve piston 92, a pressure one-way valve 93 and an oil supplementing valve ejector rod 94.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
The four parameters of loose specific gravity, particle size distribution, water content and ferrite molding particle fluidity are key factors for manufacturing high-quality special-shaped blanks; the applicant finds that the existing mechanical granulation can not ensure that ferrite particles can reach the four refined parameters, and a pressure diaphragm pump drives a plunger to move back and forth under the driving of a speed reducer in the actual use process by adopting a conventional spray granulator, when the plunger returns through hydraulic oil extrusion of the diaphragm, the hydraulic oil drives the diaphragm to return to suck slurry to a pump head from a feed valve, after the return stroke is finished, the feed valve is closed, and the slurry is extruded from a discharge valve in the process, so that a device for regulating the speed of the diaphragm and the pressure of the slurry is lacked, and the long-term use of the device can cause the irregular breakdown of the diaphragm, the normal production process is seriously influenced, and the difference between the internal pressures of a slurry pipe before and after the spraying in the spray granulation process is large, so that the particle size of the granulated particles at a discharge pipe is dispersed, and the flowing parameters are difficult to monitor.
As shown in fig. 1 to 4, an improved pressure diaphragm pump for pressure spray granulation of soft magnetic ferrite comprises: the pump comprises a frame 1, a pump body assembly 2, a first pump body 20, a pump body shell 200, a plunger rod 201, a diaphragm return-to-position crank arm 202, a diaphragm positioning screen 203, a diaphragm 204, a second pump body 21, a third pump body 22, a fourth pump body 23, a pump head assembly 24, a pump head shell 240, a feeding valve seat 241, a discharging valve seat 242, a feeding pipe 3, a discharging pipe 4, a first crankcase 50, a second crankcase 51, a box body 52, a transmission shaft 53, a camshaft box 54, a speed reducing assembly 6, a driving motor 60, a transmission device 61, a speed reducing box 62, a coupler 7, an air buffer 8, a overflow valve group 9, a mounting shell 90, a pressure relief valve pressure spring 91, a pressure relief valve piston 92, a pressure one-way valve 93 and an oil supplementing valve ejector rod 94.
The pump comprises four pump body assemblies 2 symmetrically arranged at two ends of the top of a frame 1, feed pipes 3 fixedly arranged on the frame 1 and communicated with the four pump body assemblies 2, discharge pipes 4 fixedly arranged at outlets of the four pump body assemblies 2, a crankcase group fixedly arranged between the two pump body assemblies 2, a speed reduction assembly 6 fixedly arranged at the center of the top of the frame 1, couplers 7 arranged at two sides of the speed reduction assembly 6 and connected with a crankcase, and an air buffer 8 fixedly connected to one end of each discharge pipe 4;
the four pump body assemblies 2 respectively comprise a first pump body 20, a second pump body 21, a third pump body 22 and a fourth pump body 23 which are fixedly installed on the frame 1.
The first pump body 20, the second pump body 21, the third pump body 22 and the fourth pump body 23 are symmetrically arranged on two sides of the crankcase in pairs; the first pump body 20, the second pump body 21, the third pump body 22 and the fourth pump body 23 each include: the pump body shell 200, the plunger rod 201 inserted into one end of the pump body shell 200, the diaphragm return in-place crank arm 202 fixedly installed inside the pump body shell 200, the diaphragm positioning screen 203 sleeved at the bottom of the diaphragm return in-place crank arm 202, the diaphragm sheet 204 arranged at the bottom of the diaphragm return in-place crank arm 202 and fixedly connected inside the pump body shell 200, and the pump head assembly 24 fixedly installed on one side of the diaphragm sheet 204; the pump body shell 200 is hollow and is fixedly connected with a corresponding crankcase through a screw assembly;
the pump head assembly 24 includes: the pump head casing 240 fixed at the edge of the pump body casing 200 by screw joint, the feeding valve seat 241 arranged at the bottom of the pump head casing 240 and communicated with the feeding pipe 3, and the discharging valve seat 242 sleeved at one end of the top of the pump head casing 240 and communicated with the discharging pipe 4. The slurry flowing from the feed tube 3 passes through the feed valve seat 241 and into the pump head housing 240.
Overflow valve banks 9 are fixedly arranged at the tops of the four pump body assemblies 2, and the overflow valve banks 9 comprise; the four pump body assemblies 2 are fixedly arranged on the mounting shell 90, the pressure release valve compression springs 91 are embedded in the shell, the pressure release valve pistons 92 are connected to one ends of the pressure release valve compression springs 91, the pressure one-way valves 93 are sleeved at the output ends of the pressure release valve pistons 92, and the oil supplementing valve ejector rods 94 are sleeved at the output ends of the pressure one-way valves 93; the other end of the oil replenishing valve ejector rod 94 is fixedly connected with the diaphragm return-to-position crank arm 202, so that the oil replenishing valve ejector rod 94 is driven by the pressure one-way valve 93 and the pressure release valve piston 92 to realize the angle adjustment of the diaphragm return-to-position crank arm 202, and finally the position adjustment of the diaphragm 204 is realized.
The speed reduction assembly 6 comprises: the device comprises a driving motor 60 fixedly arranged on the frame 1, a transmission device 61 sleeved on an output wheel of the driving motor 60, and a speed reducer case 62 fixedly arranged on the frame 1; the speed reducer case 62 has double output shafts; the input shaft of the speed reducer case 62 is sleeved at the other end of the transmission device 61; two groups of output shafts of the speed reducer case 62 are in transmission connection with the crank case groups on two sides through a coupler 7; the power of the driving motor 60 drives the crankcase through the transmission device 61 and the speed reducer box 62.
The crankcase group includes: a first crankcase 50 provided between the first pump body 20 and the second pump body 21, and a second crankcase 51 provided between the third pump body 22 and the fourth pump body 23. The first crankcase 50 and the second crankcase 51 each include: the plunger rod assembly comprises a pump body shell 200, transmission shafts 53 and cam shaft boxes 54, wherein the pump body shell 200 is fixedly installed in a box body 52, the transmission shafts 53 are inserted in the box body 52 and are in transmission connection with a coupler 7, the cam shaft boxes 54 are fixedly connected to one ends of the transmission shafts 53, through holes for inserting plunger rods 201 are formed in two sides of each cam shaft box 54, the upper dead center positions of cam shafts in the two cam shaft boxes 54 are staggered by 90 degrees, then the two transmission shafts 53 respectively drive the two cam shafts to rotate in the cam shaft boxes 54, then four groups of plunger rods 201 at two ends of the two cam shafts are driven to act in turn, and finally the four pump body assemblies 2 work in turn.
The working principle is as follows:
slurry enters the feed valve from the feed pipe 3, the power of the driving motor 60 drives the crank case to transmit through the transmission device 61 and the speed reducer case 62, the top dead center positions of the cam shafts in the two groups of cam shaft boxes 54 are staggered by 90 degrees, and then the power passes through two sets of transmission shafts 53 of two sets of crank cases to drive two sets of cam shafts to rotate in the cam shaft boxes 54 respectively, and then four groups of plunger rods 201 at two ends of two groups of camshafts act in turn to realize that four pump body assemblies 2 in the device work in turn, when the plunger rods 201 move backwards, hydraulic oil drives the diaphragm plates 204 to return to suck slurry from the feeding valve seats 241 to the pump heads, when the plunger rods 201 continue to move backwards, the diaphragm return in-place crank arm 202 drives the ejector rod 94 of the quick oil supplement valve to open the oil supplement valve, hydraulic oil is quickly supplemented into the pump body, after the supplement is completed, the pressure one-way valve 93 is closed and enters a pressure output state, so that the diaphragm 204 is always in a balanced pressure state in work; when the plunger rod 201 moves forward, the hydraulic oil drives the diaphragm 204 to return to eject the slurry out of the pump head to the discharge valve seat 242 and enter the discharge pipe 4, and an air buffer 8 is arranged at the outlet of the discharge pipe 4 to adjust the pressure in the discharge pipe 4, so that the discharge pipe 4 outputs the slurry with stable flow and pressure parameters.
The utility model discloses a top dead center position of camshaft in two sets of camshaft boxes 54 staggers 90 each other, and then two sets of transmission shafts 53 drive two sets of camshafts respectively and rotate in camshaft boxes 54, and then drive four groups of plunger rods 201 at two ends of two sets of camshafts and act on in turn, stabilize the flow velocity of flow and the regular pressure fluctuation of ground paste in inlet pipe 3 and discharging pipe 4, improve the quality of granule material, improve granule material mobility, improve the shaping qualification rate of special-shaped blank; the diaphragm pressure between the four pump bodies is controlled through the overflow valve group 9, so that the diaphragm works in a balanced state all the time, the operation stability of equipment is improved, the influence of equipment faults on the production progress is eliminated, and the production efficiency is improved.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.