Building mortar crushing device

Abstract

A building mortar crushing device belongs to the field of crushing devices and comprises a box body, supporting legs are arranged on the box body, a discharging opening is formed in the bottom of the box body, a feeding opening is formed in the upper portion of the box body, two crushing rollers are rotatably installed in the box body, a filter cartridge is rotatably installed in the box body, and the crushing rollers are located in the filter cartridge. A plurality of spiral material lifting plates are uniformly arranged on the inner circumference of the filter cartridge, and an arc-shaped baffle fixed on the box body is arranged in the filter cartridge. The gravel crushing device is simple in structure and ingenious in conception, gravel is preliminarily screened through the material leakage holes, extrusion of the same distance is applied to the gravel according to the size of the gravel, extrusion force of the same size is generated, and therefore the problems that small-size gravel is not thoroughly crushed, and too many chippings are caused by excessive crushing of large-size gravel are solved; and the rotating filter cartridge is used for dynamically screening the gravel, blockage of the filter cartridge is reduced, meanwhile, the gravel which is not thoroughly crushed is lifted until the gravel is thoroughly crushed, the actual requirement is met, and the device is suitable for popularization.

Description

Technical Field

[0001] The invention belongs to the field of crushing devices, in particular to a building mortar crushing device. Background Art

[0002] Building mortar is a mortar that bonds masonry block materials (bricks, stones, blocks) into a whole. It is composed of inorganic cementitious materials, fine aggregates and water, and sometimes certain admixtures. Compressive strength is often used as the most important technical performance indicator. In the process of producing building mortar, it is necessary to use a crushing device to crush the raw materials so that the raw materials reach the required mixed state. When the existing crushing roller crushes sand and gravel, the extrusion distance of the sand and gravel is the same regardless of the size of the sand and gravel, resulting in small-volume sand and gravel being incompletely crushed due to too small an extrusion distance, or large-volume sand and gravel being over-crushed due to too large an extrusion distance, resulting in too much debris. Incomplete sand and gravel crushing and too much crushed debris will affect the quality of the mortar. In order to solve the above problems, we have invented a building mortar crushing device. Summary of the invention

[0003] The invention provides a building mortar crushing device to solve the defects in the prior art.

[0004] The present invention is achieved through the following technical solutions: A construction mortar crushing device comprises a box body, the box body is provided with supporting legs, a discharge port is provided at the bottom of the box body, a feeding port is provided at the upper part of the box body, two crushing rollers are rotatably installed in the box body, a filter cartridge is rotatably installed in the box body, the crushing rollers are located inside the filter cartridge, a plurality of spiral lifting plates are evenly provided on the inner periphery of the filter cartridge, an arc-shaped baffle plate fixed on the box body is provided in the filter cartridge, the inner side of the lifting plate is in sliding contact with the outer periphery of the arc-shaped baffle plate, the middle part of the crushing roller is a conical roller whose diameter gradually decreases from back to front, a conveying shaft rotatably installed on the box body is provided above the crushing roller, a spiral blade is fixedly provided on the outer periphery of the conveying shaft, the front part of the conveying shaft is a conical rod whose diameter gradually decreases from back to front, the spiral pitch of the front part of the spiral blade gradually increases from back to front, and a baffle plate fixed on the box body is provided in parallel on the side of the conveying shaft.

[0005] In the construction mortar crushing device as described above, a crushing protrusion is provided along the conical surface in the middle of the outer circumference of the conical roller.

[0006] In the construction mortar crushing device as described above, a material guide inclined plate is fixedly provided on the upper end of the arc-shaped baffle plate, and the front and rear ends of the material guide inclined plate are respectively fixedly connected to the corresponding side walls of the box body.

[0007] In the construction mortar crushing device as described above, two arc-shaped baffles and two material guide inclined plates are respectively provided and symmetrically distributed inside the filter cylinder. The material guide inclined plate on one side is fixedly connected to the baffle, and the material guide inclined plate on the other side is located above the conveying shaft.

[0008] A construction mortar crushing device as described above, the filter cylinder includes rotating rings at the front and rear ends, the rotating rings are rotatably mounted on the housing through sealed bearings, the two rotating rings are connected through a filter mesh cylinder, the two ends of the lifting plate are also connected to the corresponding rotating rings, a coaxial tooth groove is provided on the outer periphery of the rotating ring on one side, and a driving gear is provided through the tooth groove meshing cooperation, a driving motor is fixedly provided on the housing, and the driving gear is fixedly mounted on the output shaft of the driving motor.

[0009] As described above, a construction mortar crushing device, the front and rear ends of the crushing roller are both cylinders, the outer circumference of the cylinder is slidably mounted with a slip ring, the corresponding slip rings on the box body are respectively provided with reserved holes, the slip rings are respectively rotatably installed in the corresponding reserved holes through sealed bearings, one end of the crushing roller is respectively provided with a slot, a plug rod is slidably installed in the slot, the plug rod can only slide back and forth relative to the slot, the plug rod is fixedly connected to the output shaft of the motor, the motor is fixed on the box body, the other end of the crushing roller is rotatably connected to the same moving plate through a bearing, a threaded hole is provided on the moving plate, the inner thread of the threaded hole cooperates with the installation bolt, and the bolt is rotatably installed on the box body through the bearing.

[0010] In the construction mortar crushing device as described above, coaxial gear rings are fixedly installed on the insertion rods, the two gear rings are meshed with each other, coaxial support shafts are fixedly installed at both ends of the transmission shaft, the support shafts are rotatably installed in reserved grooves on the box body through sealed bearings, a coaxial gear is fixedly installed on one end of one of the support shafts, and the gear is meshed with one of the gear rings.

[0011] In the construction mortar crushing device as described above, a discharge hole is provided at the upper portion of the front side of the box body, the discharge hole is located above the conveying shaft, and a discharge plate fixed to the box body is provided on the side of the discharge hole.

[0012] In the construction mortar crushing device as described above, a feeding hopper fixed on the box body is provided outside the feeding port.

[0013] The advantages of the present invention are: the present invention has a simple structure and an ingenious design. The sand and gravel are preliminarily screened through the leakage hole, and the sand and gravel are squeezed at the same distance according to the size of the sand and gravel to generate the same extrusion force, thereby avoiding the problem of incomplete crushing of small-volume sand and gravel and excessive crushing of large-volume sand and gravel causing a large amount of debris. The rotating filter drum is used to dynamically screen the sand and gravel to reduce the blockage of the filter drum, and at the same time, the sand and gravel that are not completely crushed are lifted until the sand and gravel are completely crushed, meeting actual needs and being suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Left view of Figure 3 yes Figure 1 A view from point A; Figure 4 yes Figure 2 The view from point B; Figure 5 yes Figure 2 A partial enlarged view of location Ⅰ.

[0016] Figure numerals: 1, box body, 2, discharge port, 3, feeding port, 4, crushing roller, 5, filter cylinder, 6, lifting plate, 7, arc baffle, 8, conveying shaft, 9, spiral blade, 10, baffle, 20, crushing protrusion, 30, guide inclined plate, 50, rotating ring, 51, filter cylinder, 52, driving gear, 53, driving motor, 60, slip ring, 61, reserved hole, 62, slot, 63, plug rod, 64, motor, 65, movable plate, 66, threaded hole, 67, bolt, 70, gear ring, 71, support shaft, 72, gear, 80, discharge hole, 81, discharge plate, 90, feeding hopper. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] A building mortar crushing device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, it includes a box body 1, which is cylindrical and has supporting legs. A discharge port 2 is provided at the bottom of the box body 1, and a feeding port 3 is provided at the upper part of the box body 1. Two crushing rollers 4 are rotatably installed in the box body 1, and a filter cartridge 5 is rotatably installed in the box body 1. The crushing rollers 4 are located inside the filter cartridge 5. Several spiral lifting plates 6 are evenly arranged on the inner periphery of the filter cartridge 5. The spiral angle of the lifting plates 6 is less than 90 degrees. In this embodiment, the spiral angle of the lifting plates 6 is 30 degrees. 6 As the filter cartridge 5 rotates forward, the large particles of sand and gravel in the filter cartridge 5 slide along the lifting plate 6 to the rear end of the lifting plate 6 and fall to the rear side above the crushing roller 4 again. The filter cartridge 5 is provided with an arc-shaped baffle 7 fixed to the box body 1. The inner side of the lifting plate 6 is in sliding contact with the outer periphery of the arc-shaped baffle 7. The outer side of the lifting plate 6 is fixedly connected to the inner periphery of the filter cartridge 5. The front and rear ends of the arc-shaped baffle 7 are fixedly connected to the corresponding side walls of the box body 1. The axis of the circle where the arc-shaped baffle 7 is located is It is colinear with the axis of the filter cylinder 5, the axis of the spiral where the lifting plate 6 is located is colinear with the axis of the filter cylinder 5, the middle part of the crushing roller 4 is a tapered roller that gradually decreases in diameter from back to front, and the spacing between the two tapered rollers gradually increases from back to front. The axes of the two crushing rollers 4 are arranged in parallel, and the two crushing rollers 4 have the same height. A conveying shaft 8 rotatably mounted on the box body 1 is provided above the crushing roller 4, and a spiral blade 9 is fixedly provided on the periphery of the conveying shaft 8. The spiral blade 9 is coaxially arranged with the conveying shaft 8. The front part of the conveying shaft 8 is a tapered rod that gradually decreases in diameter from back to front, and the spiral spacing of the front part of the spiral blade 9 gradually increases from back to front. The spiral spacing of the rear part of the spiral blade 9 is the same, and the spacing is the smallest. A baffle 10 fixed on the box body 1 is provided in parallel on the side of the conveying shaft 8, and the interval between the conveying shaft 8 and the baffle 10 is divided into several leakage holes by the spiral blade 9, and the leakage holes at the rear of the conveying shaft 8 are the same in size, and the size of the leakage holes at the front gradually increases from back to front. The present invention has a simple structure and an ingenious design. Sand and gravel are preliminarily screened through the leakage holes, and the sand and gravel are squeezed at the same distance according to the size of the sand and gravel to generate the same extrusion force, thereby avoiding the problem of incomplete crushing of small-volume sand and gravel and excessive crushing of large-volume sand and gravel resulting in a large amount of debris. The rotating filter cartridge 5 is used to dynamically screen the sand and gravel to reduce the blockage of the filter cartridge 5, and at the same time, the sand and gravel that are not completely crushed are lifted until the sand and gravel are completely crushed, thereby meeting actual needs and being suitable for promotion.When using the present invention, first drive the filter drum 5 to rotate along the axis of the filter drum 5, drive the transmission shaft 8 to rotate along the axis of the transmission shaft 8, drive the two crushing rollers 4 to rotate, the two crushing rollers 4 rotate in opposite directions, and the crushing roller on the left rotates clockwise. At this time, the sand and gravel to be crushed are put into the filter drum 5 inside the box body 1 through the feeding port 3, and the sand and gravel fall to the rear between the baffle 10 and the transmission shaft 8. When the transmission shaft 8 rotates, it drives the spiral blade 9 to rotate. When the spiral blade 9 rotates, it can form a forward thrust for the sand and gravel. Friction is formed between the baffle 10 and the sand and gravel to prevent the sand and gravel from rotating with the spiral blade 9. The spiral pitch of the rear part of the spiral blade 9 is the same. At this time, the sand and gravel falling through the leakage hole is small, and the sand and gravel are transmitted forward, spread out, and the accumulation of sand and gravel is reduced. Small-volume sand and gravel fall downward through the small leakage hole. At this time, the corresponding The distance between the two crushing rollers 4 is small, so small-volume sand and gravel can be crushed completely. The sand and gravel are transmitted forward with the spiral blades 9. The small-volume sand and gravel first fall from the leakage hole to between the two crushing rollers 4, and the large-volume sand and gravel finally fall between the front parts of the two crushing rollers 4. The crushing rollers 4 have a small extrusion distance for large-volume sand and gravel, so the sand and gravel will not be completely crushed, reducing debris. The large-volume sand and gravel are not completely crushed after crushing, and the sand and gravel with crushed particle size that meets the standard falls into the box 1 through the filter holes of the filter cylinder 5 and is discharged from the box 1 through the discharge port 2. The sand and gravel with crushed particle size that does not meet the standard rotates with the filter cylinder 5, and the lifting plate 6 drives the sand and gravel to rotate with the filter cylinder 5. The sand and gravel slide along the spiral surface of the lifting plate 6 to the rear end of the filter cylinder 5, and fall to the rear end of the spiral blade 9 again. The above process is repeated until all the crushed sand and gravel particle sizes meet the standard.

[0019] Specifically, if Figure 2 and Figure 4 As shown, in this embodiment, the middle part of the outer circumference of the tapered roller is provided with a crushing protrusion 20 along the tapered surface. The crushing protrusion 20 increases the crushing effect of the tapered roller and reduces the slipping of sand and gravel between the tapered rollers.

[0020] Specifically, Figure 1 and Figure 2 As shown, the upper end of the arc-shaped baffle plate 7 in this embodiment is fixedly provided with a guide inclined plate 30, and the front and rear ends of the guide inclined plate 30 are respectively fixedly connected to the corresponding side walls of the box body 1. When the sand and gravel lifted by the lifting plate 6 falls from the upper end of the arc-shaped baffle plate 7, it slides along the guide inclined plate 30 and falls to the upper part between the conveying shaft 8 and the baffle plate 10.

[0021] Further, such as Figure 1As shown, the arc-shaped baffles 7 and the guide inclined plates 30 of this embodiment are provided with two each, and are symmetrically distributed inside the filter cylinder 5. The guide inclined plates 30 on one side are fixedly connected to the baffle 10, and the guide inclined plates 30 on the other side are located above the conveying shaft 8. The arc-shaped baffles 7 and the guide inclined plates 30 on both sides can make the sand and gravel fall again to the upper part between the conveying shaft 8 and the baffle 10 regardless of whether the filter cylinder 5 rotates forward or backward.

[0022] Furthermore, Figure 1 and Figure 2 As shown, the filter cartridge 5 described in this embodiment includes a rotating ring 50 at both ends, the rotating ring 50 is rotatably mounted on the housing 1 through a sealed bearing, and the two rotating rings 50 are connected through a filter screen cartridge 51, which is a horizontal cylinder with filter holes uniformly arranged on the outer circumference. The rotating ring 50, the filter screen cartridge 51 and the corresponding sealed bearing are coaxially arranged, and the two ends of the lifting plate 6 are also connected to the corresponding rotating ring 50, respectively. The outer circumference of the rotating ring 50 on one side is provided with a coaxial tooth groove, and a driving gear 52 is provided through the meshing of the tooth groove. A driving motor 53 is fixedly provided on the housing 1, and the driving gear 52 is fixedly mounted on the output shaft of the driving motor 53. The driving motor 53 is coaxially arranged with the driving gear 52. When the driving motor 53 is powered on and rotated, its output shaft drives the driving gear 52 to rotate, and the driving gear 52 drives the rotating ring 50 and the filter screen cartridge 51 to rotate, thereby driving the filter cartridge 5 to rotate.

[0023] Furthermore, Figure 2 and Figure 4As shown, the front and rear ends of the crushing roller 4 described in this embodiment are both cylinders, and the outer circumference of the cylinder is slidably mounted with a slip ring 60, and the cylinder can slide forward and backward in the slip ring 60. The housing 1 is provided with a reserved hole 61 corresponding to the slip ring 60, and the slip ring 60 is rotatably installed in the corresponding reserved hole 61 through a sealed bearing. One end of the crushing roller 4 is provided with a slot 62, and a plug rod 63 is slidably installed in the slot 62. The plug rod 63 can only slide forward and backward relative to the slot 62, and the plug rod 63 cannot rotate relative to the slot 62. The crushing roller 4, the slip ring 60, the reserved hole 61, the slot 62 and the plug rod 63 are coaxially arranged, and the plug rod 63 is fixedly connected to the output shaft of the motor 64. The motor 64 is fixed on the housing 1, and the output shaft of the motor 64 is coaxially arranged with the plug rod 63. The other end of the crushing roller 4 is rotatably connected to the same moving plate 65 through a bearing. A threaded hole 66 is provided on the moving plate 65, and the inner thread of the threaded hole 66 cooperates with the installation bolt 67, and the bolt 67 is rotatably installed on the housing 1 through a bearing. By tightening the bolt 67, the movable plate 65 moves forward and backward, and the movable plate 65 drives the crushing roller 4 to move forward and backward, and the insertion rod 63 slides in the slot 62. When the motor 64 is energized, its output shaft drives the insertion rod 63 to rotate, and the insertion rod 63 drives the crushing roller 4 to rotate through the slot 62; the crushing roller 4 can be adjusted forward and backward, so that sand and gravel of the same size can fall between the crushing rollers 4 with different spacings, thereby changing the crushing effect of the crushing roller 4 on the sand and gravel, that is, the large spacing of the crushing roller 4 corresponds to a large volume of sand and gravel, and the crushing effect is increased when the crushing roller 4 is adjusted to a small spacing corresponding to a large volume of sand and gravel, and the amount of debris increases; conversely, the large spacing of the crushing roller 4 corresponds to a small volume of sand and gravel, the crushing effect is reduced, and the amount of debris is reduced.

[0024] Furthermore, Figure 2 As shown, the plug rod 63 of this embodiment is respectively fixed with coaxial toothed rings 70, the two toothed rings 70 mesh with each other, the two ends of the transmission shaft 8 are respectively fixed with coaxial support shafts 71, the support shafts 71 are respectively rotatably mounted in the reserved grooves on the box body 1 through sealed bearings, one end of one of the support shafts 71 is fixed with a coaxial gear 72, the gear 72 meshes with one of the toothed rings 70. When the plug rod 63 rotates, the gear 72 is driven to rotate through the toothed ring 70, and the gear 72 drives the transmission shaft 8 to rotate through the support shaft 71.

[0025] Furthermore, Figure 2 As shown, in this embodiment, a discharge hole 80 is provided at the upper part of the front side of the box body 1, and the discharge hole 80 is located above the conveying shaft 8. A discharge plate 81 fixed to the box body 1 is provided on the side of the discharge hole 80. Sand and gravel with too large a volume cannot fall onto the crushing roller 4 through the leakage hole, and under the conveying action of the spiral blade 9, it is discharged from the box body 1 through the discharge hole 80 and slides down along the discharge plate 81.

[0026] Furthermore, Figure 2As shown, the outer side of the feeding port 3 in this embodiment is provided with a feeding hopper 90 fixed on the box body 1. The feeding hopper 90 facilitates feeding into the box body 1.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A construction mortar crushing device, comprising a box (1), the box (1) being provided with supporting legs, a discharge port (2) being provided at the bottom of the box (1), a feeding port (3) being provided at the top of the box (1), two crushing rollers (4) being rotatably mounted in the box (1), characterized in that: A filter cartridge (5) is rotatably mounted in the housing (1), a crushing roller (4) is located inside the filter cartridge (5), a plurality of spiral material lifting plates (6) are evenly arranged on the inner circumference of the filter cartridge (5), an arc-shaped baffle plate (7) fixed on the housing (1) is arranged inside the filter cartridge (5), the inner side of the material lifting plate (6) is in sliding contact with the outer circumference of the arc-shaped baffle plate (7), the middle portion of the crushing roller (4) is a tapered roller whose diameter gradually decreases from the back to the front, a conveying shaft (8) rotatably mounted on the housing (1) is arranged above the crushing roller (4), a spiral blade (9) is fixedly arranged on the outer circumference of the conveying shaft (8), the front portion of the conveying shaft (8) is a tapered rod whose diameter gradually decreases from the back to the front, the spiral pitch of the front portion of the spiral blade (9) gradually increases from the back to the front, and a baffle plate (10) fixed on the housing (1) is arranged parallel to the side of the conveying shaft (8).

2. A construction mortar crushing device according to claim 1, characterized in that: A crushing protrusion (20) is provided along the conical surface in the middle of the outer circumference of the conical roller.

3. A construction mortar crushing device according to claim 1, characterized in that: A material guiding inclined plate (30) is fixedly provided at the upper end of the arc-shaped baffle plate (7), and the front and rear ends of the material guiding inclined plate (30) are respectively fixedly connected to the corresponding side walls of the box body (1).

4. A construction mortar crushing device according to claim 3, characterized in that: Two of the arc-shaped baffle plates (7) and two of the material guide inclined plates (30) are respectively provided and are symmetrically distributed inside the filter cylinder (5). The material guide inclined plate (30) on one side is fixedly connected to the baffle plate (10), and the material guide inclined plate (30) on the other side is located above the conveying shaft (8).

5. A construction mortar crushing device according to claim 1, characterized in that: The filter cartridge (5) comprises rotating rings (50) at the front and rear ends. The rotating rings (50) are rotatably mounted on the housing (1) via sealed bearings. The two rotating rings (50) are connected via a filter screen cartridge (51). The two ends of the material lifting plate (6) are also connected to the corresponding rotating rings (50). A coaxial tooth groove is provided on the outer periphery of the rotating ring (50) on one side, and a driving gear (52) is provided through meshing of the tooth grooves. A driving motor (53) is fixedly mounted on the housing (1), and the driving gear (52) is fixedly mounted on the output shaft of the driving motor (53).

6. A construction mortar crushing device according to claim 1, characterized in that: The front and rear ends of the crushing roller (4) are both cylinders, and the outer circumferences of the cylinders are respectively slidably mounted with slip rings (60). The housing (1) is provided with reserved holes (61) corresponding to the slip rings (60). The slip rings (60) are rotatably mounted in the corresponding reserved holes (61) via sealed bearings. A slot (62) is respectively provided at one end of the crushing roller (4). A plug rod (63) is slidably mounted in the slot (62). The plug rod (63) can only slide back and forth relative to the slot (62). The plug rod (63) is fixedly connected to the output shaft of a motor (64). The motor (64) is fixed to the housing (1). The other end of the crushing roller (4) is rotatably connected to a movable plate (65) via a bearing. The movable plate (65) is provided with a threaded hole (66). The inner thread of the threaded hole (66) cooperates with a mounting bolt (67). The bolt (67) is rotatably mounted on the housing (1) via a bearing.

7. A construction mortar crushing device according to claim 6, characterized in that: Coaxial toothed rings (70) are fixedly mounted on the insertion rods (63), and the two toothed rings (70) mesh with each other. Coaxial support shafts (71) are fixedly mounted on both ends of the transmission shaft (8), and the support shafts (71) are rotatably mounted in reserved grooves on the box body (1) via sealed bearings. A coaxial gear (72) is fixedly mounted on one end of one of the support shafts (71), and the gear (72) meshes with one of the toothed rings (70).

8. A construction mortar crushing device according to claim 1, characterized in that: A discharge hole (80) is provided at the upper portion of the front side of the box body (1), the discharge hole (80) being located above the conveying shaft (8), and a discharge plate (81) fixed to the box body (1) is provided on the side of the discharge hole (80).

9. A construction mortar crushing device according to claim 1, characterized in that: A feeding hopper (90) fixed on the box body (1) is provided on the outside of the feeding port (3).

Images