Automatic gap adjusting structure and method for discharge gate of conical sand making machine

Abstract

The application relates to an automatic gap adjusting structure and method of a discharging gate of a conical sand making machine, which comprises the conical sand making machine and a controller. The broken wall profile of the conical sand making machine is in the shape of an eagle hook nose, the nose tip of the eagle hook nose is an inflection point, the initial closed edge discharge port width formed by the broken wall surface below the inflection point and the mill wall surface is 14-15 mm, the inflection point of the mill wall is located below the inflection point of the broken wall, and the lower part of the inflection point is an annular notch. The initial height of the oil cavity of the hydraulic control main shaft system of the driving main shaft of the conical sand making machine is 79.5-80.5 mm. The advantages are that the problems of the discharging gate blockage of the conical sand making machine caused by the wear and groove of the discharge gate formed by the broken wall and the mill wall during the sand making process can be fundamentally solved, and the phenomenon of the accelerated wear of the broken wall caused by the broken wall groove and the rotation of the stones in the groove (concave arc-shaped groove) to form a vortex can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of both can avoid the discharge of conical sand making machine mouth block, also can pass through the automatic adjustment of conical sand making machine discharge gap, avoid sandstone to the accelerated wear of broken wall in conical sand making machine, conical sand making machine discharge gap automatic adjustment structure and automatic adjustment method of adjusting gap, belong to conical sand making machine manufacturing field. BACKGROUND

[0002] The applicant's all previous patents CN103599822B, name "immortal machine conical sand making machine and the method of immortal machine", the rotation direction of main shaft in conical sand making machine is clockwise rotation (eccentric rotation), sandstone in the sand making cavity formed by anti-wear movable sleeve and anti-wear fixed sleeve during sand making process, once block occurs due to large amount of material, since the upper casing of conical sand making machine and adjusting screw nut are counterclockwise rotation, the rotation direction of main shaft driven anti-wear movable sleeve in conical sand making machine is clockwise rotation, therefore, anti-wear movable sleeve is forced to rotate clockwise under the drive of main shaft and dynamic cone, which forces the upper casing of conical sand making machine and adjusting screw nut to rotate clockwise, and the result of clockwise rotation forces adjusting screw nut to rotate upward, so that anti-wear fixed sleeve on adjusting screw nut rises with adjusting screw nut, thereby causing the gap of sand making cavity formed by anti-wear fixed sleeve and anti-wear movable sleeve to automatically increase according to the amount of feed, to prevent the occurrence of conical sand making machine blockage due to large amount of sandstone feed. Advantage: first, it fundamentally solves the problem that the sand making cavity of conical sand making machine cannot automatically adjust the size of sand making cavity gap according to the amount of feed, which leads to the occurrence of conical sand making machine shutdown, motor current increase and motor burnout; Second, it avoids damage to sand making cavity anti-wear fixed sleeve and anti-wear movable sleeve caused by sandstone blockage.

[0003] However, in the implementation process, both anti-wear movable sleeve (broken wall) and anti-wear fixed sleeve (mill wall) will be worn by stone during sand making process to form concave arc groove (gou), which will form a relatively closed stone cavity, and the stone will rotate in the groove (concave arc groove) to form a vortex, which not only makes it difficult to discharge, but also accelerates the wear of broken wall. SUMMARY

[0004] Design purpose: to avoid the shortcomings in the background art, a kind of both can avoid the discharge of conical sand making machine mouth block, also can pass through the automatic adjustment of conical sand making machine discharge gap, avoid sandstone to the accelerated wear of broken wall in conical sand making machine, conical sand making machine discharge gap automatic adjustment structure and automatic adjustment method of adjusting gap.

[0005] Design scheme: in order to realize the above design purpose, the present application is based on the existing cone sand making machine, the driving main shaft of the cone sand making machine is designed to be able to automatically adjust the height of the hydraulic control main shaft system according to the amount of the cone sand making machine discharging dragon material, which is the main technical feature of the present application. The purpose of such design is that the initial height of the hydraulic oil cavity in the hydraulic control main shaft system is 14-15mm, and the crushing wall is fixed on the moving cone, the moving cone is fixed on the driving main shaft, the driving main shaft is connected with the hydraulic piston in the hydraulic control main shaft system, when the height of the oil cavity in the hydraulic control main shaft system changes, the driving main shaft moves up and down synchronously, and then drives the moving cone and the crushing wall to move up and down, and the roller wall in the cone sand making machine is a fixed part, which constitutes the rolling pressure sand together with the crushing wall, at this time, the width of the sand making dragon mouth (discharge port) 5 formed by the crushing wall 1 and the roller wall 3 needs to be kept between 14-15mm. In the process of sand making, the crushing wall 1 and the roller wall 3 are worn by sand and stone in the process of rolling and pressing stone sand, and the corresponding grooves are formed on the crushing wall and the roller wall at the same time, the two corresponding groove edges relatively form a relatively closed sandstone cavity, which not only directly leads to the sharp reduction of the crushing sand discharge, but also the sand cannot be discharged, and the sand material rotating in the concave arc groove of the crushing wall not only is not easy to discharge, but also accelerates the wear of the crushing wall, at this time, the crushing wall 1 rises 19.5-20.5mm under the drive of the hydraulic control main shaft system 7, the grooves on the crushing wall after rising are just opposite to the grooves on the roller wall, so that the stone material in the concave arc groove of the crushing wall cannot form vortex, at this time, the sand and stone in the groove of the roller wall are held by the lower edge of the groove and the dragon mouth formed by the crushing wall, and the rolling and pressing sand of the stone material is completed, since the sand and stone in the groove of the roller wall are held by the lower edge of the groove, the roller wall is directly worn by the stone material in the dragon mouth during the process of rolling and pressing sand of the stone material with the dragon mouth formed by the crushing wall, so that the stone material in the groove of the roller wall prevents the direct wear of the roller wall by the stone material in the dragon mouth, thereby greatly prolonging the service life of the crushing wall and the roller wall; similarly, the width of the new sand making dragon mouth (discharge port) 5 formed by the crushing wall 1 and the roller wall 3 after the crushing wall 1 rises still keeps between 14-15mm, at this time, the crushing wall 1 and the roller wall 3 are still worn by sand and stone in the process of rolling and pressing stone sand, and the grooves are formed on the crushing wall and the roller wall at the same time, (at this time, the wear of the roller wall is smaller than that of the crushing wall due to the indirect wear, but the wear groove formed on the crushing wall is concave arc, and the concave arc edge is opposite to the roller wall, which still leads to the sharp reduction of the crushing sand discharge, even the sand cannot be discharged, at this time, the crushing wall 1 rises 30±1mm under the drive of the hydraulic control main shaft system 7, the grooves on the crushing wall after rising are just opposite to the grooves on the roller wall, at this time, the sand and stone in the groove below the non-wearing roller wall are still held by the lower edge of the groove and the dragon mouth formed by the crushing wall, and the rolling and pressing sand of the stone material is completed, until the crushing wall is worn out and replaced.

[0006] Technical solution 1: A kind of automatic gap adjusting structure of discharge gate of conical sand making machine, including conical sand making machine, the broken wall profile in the conical sand making machine is hawk nose shape, hawk nose tip is inflection point, the initial closed edge discharge port width formed by the broken wall surface below inflection point and millstone wall surface is 14-15mm, millstone wall inflection point is located in the lower part of broken wall inflection point, and the inflection point below is annular notch;The driving main shaft in the conical sand making machine is connected with the piston in hydraulic control main shaft system, and the initial height of oil cavity below piston is 79.5-80.5mm.

[0007] Technical solution 2: A kind of automatic gap adjusting method of discharge gate of conical sand making machine, the width of sand making gate formed by broken wall and millstone wall in the conical sand making machine needs to be kept between 14-15mm in the process of sand making, broken wall and millstone wall are worn in the process of stone crushing sand making, and the concave groove is formed on the broken wall while the concave groove is formed on the millstone wall, at this time, the broken wall is lifted by 19.5-20.5mm under the drive of hydraulic control main shaft system, the concave groove on the broken wall after lifting is just opposite to the concave groove on the millstone wall, at this time, the sand stone in the concave groove of millstone wall is held by the lower edge of concave groove and cooperates with the gate formed by broken wall to complete the stone crushing sand making;Similarly, the width of new sand making gate formed by broken wall after lifting and millstone wall still keeps between 14-15mm, at this time, broken wall and millstone wall are still worn in the process of stone crushing sand making, and the concave groove is formed on the broken wall while the concave groove is formed on the millstone wall, at this time, the broken wall is lifted by 30±1mm under the drive of hydraulic control main shaft system, the concave groove on the broken wall after lifting is just opposite to the concave groove on the millstone wall, at this time, the sand stone in the concave groove below non-worn millstone wall is still held by the lower edge of concave groove and cooperates with the gate formed by broken wall to complete the stone crushing sand making, until the broken wall is worn out.

[0008] Compared with the background art, the design of driving main shaft driving broken wall lifting system in the conical sand making machine can fundamentally solve the problem of discharge gate blockage caused by the wear of discharge gate formed by broken wall and millstone wall in the process of sand making in the background art, and avoid the phenomenon of accelerated wear of broken wall caused by the rotation of stone in the groove (concave arc groove). BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the schematic diagram of broken wall and millstone wall in the conical sand making machine without wear.

[0010] Figure 2 It is the schematic diagram of broken wall and millstone wall in the conical sand making machine after the first lifting of driving main shaft.

[0011] Figure 3Fig. 2 is a schematic diagram of the second time driving main shaft rising after the crushing wall and the grinding wall wear in the conical sand making machine.

[0012] Figure 4 Fig. 3 is a schematic diagram of the third time driving main shaft rising after the crushing wall and the grinding wall wear in the conical sand making machine.

[0013] Figure 5 Fig. 4 is a schematic diagram of the fourth time driving main shaft rising after the crushing wall and the grinding wall wear in the conical sand making machine. DETAILED DESCRIPTION

[0014] Example 1: refer to the attached drawings Figures 1-3 The application discloses a kind of automatic gap adjusting structures of conical sand making machine discharge gate, including conical sand making machine and PLC controller, whether the increasing amplitude of the working current of conical sand making machine is determined by detecting, driving driving main shaft system driving driving main shaft is instructed by hydraulic control, and the amplitude of rising.The implementation of the technology is prior art, the present application utilizes prior art and the present application, solve the defects in the background art, so that conical sand making machine can reach industrialization uninterrupted sand making.Therefore, based on all prior art conical sand making machines of the present applicant, the crushing wall 1 in the conical sand making machine is hawk hook nose shape, hawk hook nose 4 nose tip is inflection point 2, the initial closed edge discharge gate width 5 formed by the crushing wall surface below inflection point 2 and grinding wall 3 surface is 14-15mm, grinding wall inflection point 2' is located in the lower part of crushing wall inflection point 2, and the annular notch below grinding wall inflection point 2';The driving main shaft 9 in the conical sand making machine is connected with the piston in the hydraulic control main shaft system 7, and the initial height of the hydraulic oil cavity 6 below the piston is 79.5-80.5mm.Crushing wall inflection point 2 is the highest point of crushing wall.Because the crushing wall and the grinding wall form the crushing sand gate (discharge gate) initially, when the crushing wall 1 is worn to form concave groove (gully) from inflection point, the inflection point height on crushing wall 2 is reduced to form new inflection point, and when the driving main shaft is raised, the new inflection point 2 height is also moved up, but because the cross-sectional structure of the grinding wall is narrow at the top and wide at the bottom (see Figure 1}, so when the crushing wall moves up, the width of the discharge gate formed between the new inflection point of the crushing wall and the grinding wall is always kept at the set width, so the defects in the background art are fundamentally solved.

[0015] Example 2: on the basis of example 1, the initial height of the oil cavity 6 of the hydraulic control main shaft system 7 of the driving main shaft 9 in the conical sand making machine is 80mm.Crushing wall inflection point 2 is the highest point of crushing wall.

[0016] Example 3: On the basis of example 1, a method for automatically adjusting the gap of the discharge opening of a conical sand making machine. In the process of sand making, the width of the sand making discharge opening (discharge opening) 5 formed by the crushing wall 1 and the mill wall 3 in the conical sand making machine needs to be maintained between 14-15 mm. The crushing wall 1 and the mill wall 3 are worn by sand and stone during the process of crushing and rolling the stone to make sand, and the crushing wall is concave at the same time as the mill wall is worn concave (the two corresponding concaves form a relative closed cavity, which directly leads to a sharp decrease in the discharge capacity of the crushed sand, and even the sand cannot be discharged). At this time, the crushing wall 1 is raised 19.5-20.5 mm under the drive of the hydraulic control main shaft system 7 (the hydraulic control main shaft system 7 works to raise the oil cavity of the hydraulic control main shaft system by 99-101 mm from the initial height of 79.5-80.5 mm, and then drives the main shaft to rise by 19.5-20.5 mm. Since the crushing wall 1 is fixed on the moving cone 8, and the moving cone 8 is fixed on the drive main shaft 9, the crushing wall 1 is raised by 19.5-20.5 mm, and the mill wall is fixed), the concave on the raised crushing wall is just opposite to the concave on the mill wall (i.e. the inflection point on the crushing wall is opposite to the concave part formed by the wear on the mill wall after wear, not the concave on the crushing wall opposite to the concave on the mill wall), at this time the sand and stone in the concave of the mill wall is held by the lower edge of the concave and cooperates with the discharge opening formed by the crushing wall to complete the rolling and sand making of the stone, (since the sand and stone in the concave of the mill wall is held by the lower edge of the concave, the stone in the concave of the mill wall prevents the direct wear of the mill wall by the stone in the discharge opening during the process of rolling and sand making of the stone with the discharge opening, thus greatly prolonging the service life of the mill wall); similarly, the width of the new sand making discharge opening (discharge opening) 5 formed by the crushing wall 1 and the mill wall 3 after the crushing wall 1 is raised still maintains between 14-15 mm, at this time the crushing wall 1 and the mill wall 3 are still worn by sand and stone during the process of crushing and rolling the stone to make sand, and the crushing wall is concave at the same time as the mill wall is worn, (at this time the wear of the mill wall is in a state of indirect wear, so the amount of wear is less than that of the crushing wall, but the concave formed by the wear on the crushing wall is in the form of a concave arc, and the concave arc side still forms a relative closed cavity with the mill wall, which directly leads to a sharp decrease in the discharge capacity of the crushed sand, and even the sand cannot be discharged), at this time the crushing wall 1 is raised 30±1 mm under the drive of the hydraulic control main shaft system 7, the concave on the raised crushing wall is just opposite to the concave on the mill wall, at this time the sand and stone in the concave below the non-worn mill wall is still held by the lower edge of the concave and cooperates with the discharge opening formed by the crushing wall to complete the rolling and sand making of the stone, until the crushing wall is worn out.

[0017] Example 4: On the basis of example 3, a method for automatically adjusting the gap of the discharge opening of a conical sand making machine. In the process of sand making, the width of the sand making discharge opening (discharge opening) 5 formed by the crushing wall 1 and the mortar wall 3 in the conical sand making machine needs to be maintained between 14.6mm. The crushing wall 1 and the mortar wall 3 are worn by sand and stone during the process of crushing and grinding stone, and the crushing wall forms a groove at the same time as the mortar wall forms a corresponding groove (the two corresponding grooves form a relatively closed cavity, which directly leads to a sharp decrease in the discharge capacity of the crushed sand, and even the sand cannot be discharged). At this time, the crushing wall 1 rises 20mm under the drive of the hydraulic control main shaft system 7 (the hydraulic control main shaft system 7 works to make the oil cavity of the hydraulic control main shaft system rise 100mm from the initial height of 80mm, and then drives the main shaft to rise 20mm. Since the crushing wall 1 is fixed on the moving cone 8, and the moving cone 8 is fixed on the drive main shaft 9, the crushing wall 1 rises 20mm, and the mortar wall remains stationary). The groove on the raised crushing wall is just opposite to the groove on the mortar wall. At this time, the sand and stone in the groove of the mortar wall are held by the lower edge of the groove and cooperated with the discharge opening formed by the crushing wall to complete the crushing and grinding of the stone. (Since the sand and stone in the groove of the mortar wall are held by the lower edge of the groove, the stone in the groove of the mortar wall prevents the direct wear of the mortar wall by the stone in the discharge opening during the process of crushing and grinding stone cooperated with the discharge opening formed by the crushing wall, thus greatly prolonging the service life of the mortar wall). Similarly, the width of the new sand making discharge opening (discharge opening) 5 formed by the crushing wall 1 and the mortar wall 3 after the crushing wall 1 rises remains between 14.6mm. At this time, the crushing wall 1 and the mortar wall 3 are still worn by sand and stone during the process of crushing and grinding stone, and the crushing wall forms a groove at the same time as the mortar wall is also worn. (At this time, the wear of the mortar wall is in a state of indirect wear, so the amount of wear is less than that of the crushing wall. However, the wear groove formed on the crushing wall is in the form of a concave arc, and the concave arc edge still forms a relatively closed cavity with the mortar wall, which directly leads to a sharp decrease in the discharge capacity of the crushed sand, and even the sand cannot be discharged). At this time, the crushing wall 1 rises 30±1mm under the drive of the hydraulic control main shaft system 7. The groove on the raised crushing wall is just opposite to the groove on the mortar wall. At this time, the sand and stone in the groove below the non-worn mortar wall are still held by the lower edge of the groove and cooperated with the discharge opening formed by the crushing wall to complete the crushing and grinding of the stone. Until the crushing wall is worn out.

[0018] Similarly, Figure 4 is the main shaft rising 70mm after the crushing wall is worn out, and the mortar wall forms a groove. Figure 5 is the main shaft rising 100mm after the crushing wall is worn out, and the tooth plate wear approaches the critical value, and the crushing wall and the mortar wall need to be replaced.

[0019] It should be understood that the above examples, although the design ideas of the present application are described in detail, these descriptions are only simple descriptions of the design ideas of the present application, and are not limitations of the design ideas of the present application, and any combination, addition or modification that does not exceed the design ideas of the present application falls within the protection scope of the present application.

Claims

1. A method for automatically adjusting the gap of the feeding chute of a cone crusher, characterized in that: During the sand making process of a cone crusher, the width of the sand-making opening formed by the crushing wall and the grinding bowl wall needs to be maintained between 14 and 15 mm. As the crushing wall and grinding bowl wall are worn down by the sand and gravel during the crushing and sand-making process, grooves form on both the crushing wall and the grinding bowl wall. At this time, the crushing wall rises 19.5 to 20.5 mm under the drive of the hydraulically controlled main shaft system. The grooves on the risen crushing wall are misaligned with the grooves on the grinding bowl wall. The sand and gravel located in the grooves of the grinding bowl wall are then caught by the lower edge of the grooves, working together with the opening formed by the crushing wall to complete the crushing and sand-making process. Similarly, the width of the sand-making opening formed by the crushing wall (1...) After rising, the width of the new sand-making auger (5) formed by the crushing wall (3) and the mortar wall (3) remains between 14 and 15 mm. At this time, the crushing wall (1) and the mortar wall (3) are still worn by the sand and gravel during the crushing and sand-making process. At the same time as the crushing wall forms grooves, the mortar wall is also worn. At this time, the crushing wall (1) rises 30 ± 1 mm under the drive of the hydraulic control spindle system (7). The groove on the crushing wall after rising is exactly opposite to the top of the mortar wall. At this time, the sand and gravel in the groove below the non-wearing mortar wall are still held by the lower edge of the groove and work together with the auger formed by the crushing wall to complete the crushing and sand-making of the stone until the crushing wall is worn out.

Images