Energy-saving electric waste sand crushing and grinding machine

Abstract

The present application relates to waste sand crushing technical field, specifically said is a kind of energy-saving electric waste sand crushing grinder, including base and fixed cylinder, fixed cylinder bottom and the top of base are fixedly connected with support seat, fixed cylinder is provided in, and one end of crushing cylinder is provided with driving mechanism, driving mechanism includes the driving shaft that passes through crushing cylinder, first crushing mechanism is arranged in the side wall of crushing cylinder, second crushing mechanism is arranged between crushing cylinder and fixed cylinder, and one end of crushing cylinder away from driving mechanism is provided with adjusting mechanism. By driving motor, the rotation of crushing cylinder is realized, and the impact of casting waste sand in the rotating process makes the casting waste sand realize preliminary crushing, and part of waste sand falls into fixed cylinder, and the first blade of the outer wall of crushing cylinder cooperates with the second blade and umbrella-shaped blade on fixed cylinder during the rotation of crushing cylinder, and waste sand is cut and crushed multiple times, so that the blade is not directly crushed large waste sand, thereby causing the blade to be damaged too fast, so that the crushing effect is guaranteed while saving energy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste sand crushing, in particular to an energy-saving electric waste sand crushing and grinding machine. BACKGROUND

[0002] Casting waste sand is a waste produced during the preparation of sand and core sand molding materials in sand casting, mainly made of high-temperature-resistant and corrosion-resistant quartz sand or quartz sand combined with clay, and if the casting waste sand is abandoned or treated by simple methods such as landfill and incineration, not only a large amount of land resources will be occupied, but also environmental pollution may be caused. With the development of recycling technology and policy encouragement, the recycling of casting waste sand has been further developed. From the aspect of resource saving, the quartz sand and other resources in the casting waste sand have certain recycling value, and through recycling, the demand for raw materials can be reduced; from the aspect of environmental benefits, recycling of casting waste sand can reduce waste emissions and reduce environmental pollution, in line with the concept of sustainable development.

[0003] In the current common crushing equipment for casting waste sand, some equipment only crushes the casting waste sand to be treated once, and the crushed waste sand is directly discharged, so that the size of the waste sand after crushing may be greatly different, which cannot be directly recycled and may need to be treated additionally. In order to obtain the required crushing particle size, the casting waste sand may need to be crushed repeatedly by the crushing equipment, so that the working process and time of the crushing equipment need to be increased, resulting in high crushing energy consumption and low crushing efficiency.

[0004] Therefore, the present application provides an energy-saving electric waste sand crushing and grinding machine. SUMMARY

[0005] In view of the problem of high energy consumption in the crushing of casting waste sand in the prior art, the present application provides an energy-saving electric waste sand crushing and grinding machine.

[0006] The technical scheme adopted by the present application to solve its technical problems is: an energy-saving electric waste sand crushing and grinding machine, comprising a base and a fixed cylinder, a support seat is fixedly connected between the bottom of the fixed cylinder and the top of the base, a crushing cylinder is arranged in the fixed cylinder, a driving mechanism is arranged at one end of the crushing cylinder, the driving mechanism comprises a driving shaft penetrating through the crushing cylinder, a first crushing mechanism is arranged on the side wall of the crushing cylinder, a second crushing mechanism is arranged between the crushing cylinder and the fixed cylinder, and an adjusting mechanism is arranged at the end of the crushing cylinder away from the driving mechanism; the driving mechanism is assembled to drive the crushing cylinder to rotate through the rotation of the driving shaft, and provides power for the first crushing mechanism and the second crushing mechanism; the first crushing mechanism is assembled to make the cast waste sand entering the crushing cylinder be impacted in rotation under the action of the driving mechanism, so as to preliminarily screen and crush the cast waste sand; the second crushing mechanism is assembled to further crush and grind the cast waste sand subjected to preliminary treatment through the cooperation between the rotating crushing cylinder and the fixed fixed cylinder; and the adjusting mechanism is assembled to adjust the position of the crushing cylinder according to the weight of the cast waste sand in the crushing cylinder during the crushing process of the equipment, so as to change the crushing effect of the second crushing mechanism.

[0007] Preferably, one end of the crushing cylinder is fixedly connected with a connecting plate, the end of the crushing cylinder away from the connecting plate is fixedly connected with a feeding hopper, the inner wall of the feeding hopper is fixedly connected with a fixed plate, the fixed plate and the connecting plate are arranged in parallel, and a discharge port is formed in one side of the support seat.

[0008] Preferably, the driving mechanism further comprises an inner gear ring fixedly connected with the connecting plate and the fixed plate respectively, a fixed tooth is fixedly connected to the outer wall of the driving shaft, the fixed tooth is engaged with the inner gear ring, a driving motor is arranged at the end of the crushing cylinder close to the connecting plate, and the output end of the driving motor is fixedly connected with the driving shaft.

[0009] Preferably, the first crushing mechanism comprises a discharging groove uniformly formed in the side wall of the crushing cylinder, a fixed nail is fixedly connected in the discharging groove, and the tip of the fixed nail faces the inside of the crushing cylinder.

[0010] Preferably, the second crushing mechanism comprises a first blade fixedly connected to the outer wall of the crushing cylinder, a screen is fixedly connected to the bottom of the fixed cylinder, two groups of second blades are arranged on the two sides of the screen respectively, the second blades are fixedly connected with the inner wall of the fixed cylinder, a group of umbrella-shaped blades are fixedly connected to the top of the screen, the blade gap of the second blades is the same as the blade gap of the umbrella-shaped blades, and the second blades and the umbrella-shaped blades are staggered with the first blades.

[0011] Preferably, the diameter of the crushing cylinder is smaller than the diameter of the fixed cylinder, the distance between the two fixed nails is greater than the distance between the two umbrella-shaped blades, and the distance between the two umbrella-shaped blades is greater than the screen hole size of the screen.

[0012] Preferably, the adjusting mechanism comprises a movable rod rotationally connected with the fixed plate, a bearing is arranged between the movable rod and the fixed plate, and a first sliding block is fixedly connected with one end of the movable rod away from the fixed plate.

[0013] Preferably, a fixed seat is fixedly connected with the top of the base, a second sliding groove is formed in one side of the fixed seat close to the movable rod, an active slot is formed in the inner upper end of the fixed seat, an electric telescopic rod is fixedly connected with the bottom of the active slot, a second sliding block is fixedly connected with the top of the electric telescopic rod, a first sliding groove is formed in the top of the second sliding block, a gravity sensor is fixedly installed on the outer wall of the connecting plate, and the electric telescopic rod is electrically connected with the gravity sensor.

[0014] Preferably, the first sliding block is in sliding connection with the first sliding groove, and the contact surfaces of the movable rod and the second sliding block are both arranged as inclined surfaces.

[0015] Preferably, the driving motor and the fixed seat are respectively located at two ends of the crushing cylinder.

[0016] The present application has the following beneficial effects:

[0017] (1) The energy-saving electric waste sand crushing and grinding machine can make the crushing cylinder rotate through the driving motor, the cast waste sand in the crushing cylinder is impacted in the rotating process, so that the cast waste sand is preliminarily crushed, part of the waste sand falls into the fixed cylinder, and the first blade on the outer wall of the crushing cylinder cooperates with the second blade and the umbrella-shaped blade on the fixed cylinder to cut and crush the waste sand for multiple times, so as to avoid that the large waste sand is directly crushed by the blade, thereby the blade is not damaged too fast, the crushing effect is ensured, and energy is saved.

[0018] (2) The energy-saving electric waste sand crushing and grinding machine can also block the relatively large waste sand when the second blade and the umbrella-shaped blade cooperate with the first blade to cut, so as to avoid that the waste sand falling into the fixed cylinder is accumulated at the lowest part of the fixed cylinder, thereby affecting the crushing effect, and the waste sand passing through multiple blocks can be cut and crushed for multiple times when the first blade rotates, so as to improve the crushing efficiency.

[0019] (3) The energy-saving electric waste sand crushing and grinding machine can trigger the gravity sensor to transmit information to the electric telescopic rod according to the weight of the waste sand in the crushing cylinder, so as to control the extension and contraction of the electric telescopic rod, so that the crushing cylinder can move back and forth in the rotating process, so as to change the gap between the first blade and the second blade and the gap between the first blade and the umbrella-shaped blade, and the waste sand is crushed more carefully. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in combination with the drawings and examples.

[0021] Figure 1The overall structural schematic diagram provided by the present application;

[0022] Figure 2 The connection schematic diagram of the fixed cylinder and the second crushing mechanism provided by the present application;

[0023] Figure 3 The enlarged view of A of Figure 2

[0024] Figure 4 The connection schematic diagram of the crushing cylinder and the adjusting mechanism provided by the present application;

[0025] Figure 5 The internal structural schematic diagram of the crushing cylinder provided by the present application;

[0026] Figure 6 The enlarged view of B of Figure 5

[0027] Figure 7 The crushing cylinder sectional view provided by the present application;

[0028] Figure 8 The connection schematic diagram of the fixed plate and the driving shaft provided by the present application;

[0029] Figure 9 The connection sectional view of the fixed plate and the driving shaft provided by the present application;

[0030] Figure 10 The connection schematic diagram of the movable rod and the fixed plate provided by the present application;

[0031] Figure 11 The internal sectional view of the fixed seat provided by the present application;

[0032] Figure 12 The connection schematic diagram of the second sliding block and the movable rod provided by the present application.

[0033] In the figure: 1, base; 2, crushing cylinder; 21, connecting plate; 3, feeding hopper; 31, fixed plate; 4, fixed cylinder; 5, supporting seat; 51, discharging port; 6, driving mechanism; 61, driving motor; 62, driving shaft; 63, inner gear ring; 64, fixed tooth; 7, first crushing mechanism; 71, discharging groove; 72, fixed nail; 8, second crushing mechanism; 81, first blade; 82, second blade; 83, screen; 84, umbrella-shaped blade; 9, adjusting mechanism; 91, movable rod; 92, bearing; 93, first sliding block; 94, fixed seat; 95, movable groove; 96, electric telescopic rod; 97, second sliding block; 98, first sliding groove; 99, second sliding groove. DETAILED DESCRIPTION

[0034] ​​To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] Example: Figures 1-12 As shown, the energy-saving electric waste sand crushing and grinding machine of the present invention includes a base 1 and a fixed cylinder 4. A support 5 is fixedly connected between the bottom of the fixed cylinder 4 and the top of the base 1. A crushing cylinder 2 is disposed inside the fixed cylinder 4. A driving mechanism 6 is disposed at one end of the crushing cylinder 2. The driving mechanism 6 includes a driving shaft 62 that passes through the crushing cylinder 2. A first crushing mechanism 7 is disposed on the side wall of the crushing cylinder 2. A second crushing mechanism 8 is disposed between the crushing cylinder 2 and the fixed cylinder 4. An adjusting mechanism 9 is disposed at the end of the crushing cylinder 2 away from the driving mechanism 6. The driving mechanism 6 is configured to drive the crushing cylinder 2 to rotate through the rotation of the driving shaft 62, and is the first crushing mechanism. The first crushing mechanism 7 provides power to the second crushing mechanism 8. The first crushing mechanism 7 is configured to cause the foundry waste sand entering the crushing cylinder 2 to be impacted during rotation under the action of the drive mechanism 6, thereby performing preliminary screening and crushing of the foundry waste sand. The second crushing mechanism 8 is configured to further crush and grind the pre-treated foundry waste sand through the cooperation between the rotating crushing cylinder 2 and the fixed cylinder 4, thereby enhancing the crushing effect. The adjusting mechanism 9 is configured to adjust the position of the crushing cylinder 2 according to the weight of the foundry waste sand in the crushing cylinder 2 during the crushing process, thereby changing the crushing effect of the second crushing mechanism 8.

[0036] In this embodiment, the driving motor 61 is started to drive the driving shaft 62 to rotate the crushing cylinder 2, and the cast sand inside the crushing cylinder 2 collides with each other and the tips of the fixed nails 72 during the rotation of the crushing cylinder 2. The large pieces of waste sand are broken under the impact until they can fall from the discharge slots 71 into the fixed cylinder 4. The small particles of waste sand directly fall from the screen 83 into the fixed cylinder 4. The gap between the two fixed nails 72 is larger than the gap between the two second blades 82 and the two umbrella-shaped blades 84. When the waste sand falls into the fixed cylinder 4, the cast waste sand to be treated is preliminarily crushed in the crushing cylinder 2, so that the large pieces of waste sand that cannot pass through the discharge slots 71 are broken in the impact until they form a size that can pass through the discharge slots 71, avoiding direct cutting of large-size waste sand by the blades, which can damage the blades and affect the efficiency. When the waste sand falls into the fixed cylinder 4 during the rotation of the crushing cylinder 2, the waste sand that meets the size requirements can fall out of different discharge slots 71, so that the large pieces of waste sand that fall into the fixed cylinder 4 are not accumulated in the same place due to the blocking of the second blades 82 and the umbrella-shaped blades 84, avoiding affecting the crushing effect of the second crushing mechanism 8. When the crushing cylinder 2 drives the first blades 81 to rotate, the second blades 82 and the umbrella-shaped blades 84 are in a static state. A plurality of first blades 81 are in turn coincided with and cut two second blades 82, one umbrella-shaped blade 84 and two second blades 82. The waste sand that cannot pass through the screen 83 is further cut and crushed. At the same time, the gravity sensor detects the weight of the waste sand in the crushing cylinder 2 and transmits information according to the weight to control the extension state of the electric telescopic rod 96. During the crushing process, the crushing cylinder 2 can be continuously fed. When the electric telescopic rod 96 is extended, the feeding device can pause feeding to avoid affecting the crushing effect of the second crushing mechanism 8 due to too much waste sand in the crushing cylinder 2. The electric telescopic rod 96 is extended to push the movable rod 91 to move towards the fixed cylinder 4, thereby moving the crushing cylinder 2, changing the distance between the first blades 81, the second blades 82 and the umbrella-shaped blades 84, and making the crushing effect more detailed, until the waste sand particles form a size that can pass through the screen 83.

[0037] In this embodiment, a group of steel balls can be placed in the crushing cylinder 2 to assist in crushing. If steel balls are placed, the length of the fixed nails 72 needs to be matched with the steel balls. The tips of the fixed nails 72 avoid contacting the steel balls to avoid damaging the fixed nails 72. The diameter of the steel balls needs to be larger than the gap between the two fixed nails 72 to avoid the steel balls falling out of the crushing cylinder 2. During the rotation of the crushing cylinder 2, the steel balls break the blocky waste sand to make it fall from the discharge slots 71 into the fixed cylinder 4.

[0038] As Figures 1-9As shown, the one end of the crushing cylinder 2 is fixedly connected with the connecting plate 21, the other end of the crushing cylinder 2 away from the connecting plate 21 is fixedly connected with the feeding hopper 3, the inner wall of the feeding hopper 3 is fixedly connected with the fixed plate 31, the fixed plate 31 is parallel to the connecting plate 21, the support seat 5 is provided with the discharge port 51 on one side; the driving mechanism 6 further comprises the inner gear ring 63 fixedly connected with the connecting plate 21 and the fixed plate 31 respectively, the fixed teeth 64 are fixedly connected on the outer wall of the driving shaft 62, the fixed teeth 64 are engaged with the inner gear ring 63, the one end of the crushing cylinder 2 close to the connecting plate 21 is provided with the driving motor 61, the output end of the driving motor 61 is fixedly connected with the driving shaft 62; the driving motor 61 and the fixed seat 94 are respectively located at the two ends of the crushing cylinder 2.

[0039] In the embodiment, the fixed cylinder 4 is supported by the support seat 5, the crushing cylinder 2 is supported by the driving shaft 62 and the movable rod 91, the driving shaft 62 penetrates through the connecting plate 21, the inner gear ring 63 on the connecting plate 21 and the inner gear ring 63 on the fixed plate 31 are respectively engaged with the two fixed teeth 64 on the driving shaft 62, thus the driving shaft 62 can drive the crushing cylinder 2 to rotate when the driving shaft 62 rotates, and the rotation of the crushing cylinder 2 is not affected when the crushing cylinder 2 moves, the fixed teeth 64 are always engaged with the inner gear ring 63, the feeding device throws the castings waste sand to be treated into the crushing cylinder 2 from the feeding hopper 3, the inclined inner wall of the feeding hopper 3 can prevent the waste sand from being accumulated in the feeding hopper 3, the waste sand can directly roll into the crushing cylinder 2, and the waste sand can be continuously fed during the crushing process, the waste sand falls from the screen mesh 83 after being crushed by the first crushing mechanism 7 and the second crushing mechanism 8, and the castings waste sand after crushing can be taken out from the discharge port 51.

[0040] In the embodiment, as shown in the figure, Figure 9 the fixed teeth 64 at the end of the driving shaft 62 away from the driving motor 61 is not completely coincided with the inner gear ring 63, under the condition that the position of the driving shaft 62 is unchanged, the crushing cylinder 2 can move towards the driving motor 61.

[0041] As shown in the figure, Figures 2-7 the first crushing mechanism 7 comprises the discharging grooves 71 uniformly provided on the side wall of the crushing cylinder 2, the fixed nails 72 are fixedly connected in the discharging grooves 71, the tips of the fixed nails 72 are towards the inside of the crushing cylinder 2; the second crushing mechanism 8 comprises the first blades 81 fixedly connected on the outer wall of the crushing cylinder 2, the screen mesh 83 is fixedly connected on the bottom of the fixed cylinder 4, two groups of the second blades 82 are respectively provided on the two sides of the screen mesh 83, the second blades 82 are fixedly connected with the inner wall of the fixed cylinder 4, a group of the umbrella-shaped blades 84 are fixedly connected on the top of the screen mesh 83, the blade gap of the second blades 82 is same with the blade gap of the umbrella-shaped blades 84, the second blades 82 and the umbrella-shaped blades 84 are staggered with the first blades 81; the diameter of the crushing cylinder 2 is smaller than the diameter of the fixed cylinder 4, the distance between the two fixed nails 72 is greater than the distance between the two umbrella-shaped blades 84, and the distance between the two umbrella-shaped blades 84 is greater than the screen hole size of the screen mesh 83.

[0042] In the present embodiment, the casting waste sand to be treated enters the inside of the crushing cylinder 2 from the feeding hopper 3, and when the crushing cylinder 2 rotates, the smaller size waste sand directly falls from the discharge slots 71 to the fixed cylinder 4, and the large waste sand that cannot pass through the discharge slots 71 is driven to move upward under the rotation of the crushing cylinder 2, and then falls under the action of gravity, so that the waste sand collides with the waste sand, and the waste sand collides with the inner wall of the crushing cylinder 2. The tip of the fixed nail 72 is closer to the center of the crushing cylinder 2 than the inner wall of the crushing cylinder 2, so that the large waste sand is more likely to collide with the tip of the fixed nail 72, so that the large waste sand is broken, and the part of the waste sand that is preliminarily broken in the crushing cylinder 2 cannot pass through the large waste sand in the discharge slots 71 and continues to stay in the crushing cylinder 2. The waste sand generated in the crushing cylinder 2 is directly dropped from the discharge slots 71 into the fixed cylinder 4 during the rotation of the crushing cylinder 2, and in this part of the waste sand, the waste sand particles meeting the size of the screen 83 directly pass through the screen 83 and fall from the fixed cylinder 4. The waste sand block that cannot pass through the screen 83 is left in the fixed cylinder 4 to continue further crushing; the small size waste sand falls from the crushing cylinder 2, and falls from different discharge slots 71. The second blade 82 and the umbrella-shaped blade 84 can play a blocking role. According to the different falling positions, the larger waste sand is blocked at different positions by the second blade 82 and the umbrella-shaped blade 84, so as to avoid that the waste sand is all stacked at the lowest part of the fixed cylinder 4. The umbrella-shaped blade 84 makes the larger waste sand unable to reach the lowest part of the fixed cylinder 4, so that while the crushing cylinder 2 preliminarily crushes the waste sand, the first blade 81 cooperates with the second blade 82 and the umbrella-shaped blade 84 to further crush the waste sand on the fixed cylinder 4. When the first blade 81 coincides with the first group of second blades 82, the larger waste sand intercepted by the group of second blades 82 is crushed and rolled to the lowest part of the fixed cylinder 4, and then the next larger waste sand intercepted is crushed. The waste sand meeting the size of the screen 83 falls from the fixed cylinder 4, and the waste sand that cannot pass through the screen 83 continues to be crushed. In the initial state, when the first blade 81 coincides with the second blade 82, the single first blade 81 is located in the middle of the gap between the two second blades 82.

[0043] As Figures 8-12As shown, the adjusting mechanism 9 comprises a movable rod 91 rotatably connected with the fixed plate 31, a bearing 92 is arranged between the movable rod 91 and the fixed plate 31, and a first sliding block 93 is fixedly connected to an end of the movable rod 91 away from the fixed plate 31; a fixed seat 94 is fixedly connected to the top of the base 1, a second sliding groove 99 is formed in a side of the fixed seat 94 close to the movable rod 91, an active slot 95 is formed in the inner upper end of the fixed seat 94, an electric telescopic rod 96 is fixedly connected to the bottom of the active slot 95, a second sliding block 97 is fixedly connected to the top of the electric telescopic rod 96, a first sliding groove 98 is formed in the top of the second sliding block 97, a gravity sensor is fixedly installed on the outer wall of the connecting plate 21, and the electric telescopic rod 96 is electrically connected with the gravity sensor; the first sliding block 93 is in sliding connection with the first sliding groove 98, and the contact surfaces of the movable rod 91 and the second sliding block 97 are both arranged as inclined surfaces.

[0044] In the present embodiment, the feeding device continuously feeds during the waste sand crushing process, and when the gravity sensor detects that the weight of the waste sand in the crushing cylinder 2 is too heavy, the electric telescopic rod 96 is controlled to be elongated to push the second sliding block 97 to move upward, the positions where the second sliding block 97 and the movable rod 91 contact each other are both inclined surfaces, so that when the second sliding block 97 moves upward, the first sliding block 93 on the movable rod 91 slides downward in the first sliding groove 98 formed in the second sliding block 97, so that the movable rod 91 translates toward the fixed cylinder 4 and pushes the crushing cylinder 2 to move, which drives the first blade 81 to move, so that the distance between the first blade 81 and the second blade 82 and the umbrella-shaped blade 84 changes, so that the crushing effect also changes, and smaller waste sand particles can be crushed compared to when the position of the first blade 81 does not move, and the position of the first blade 81 repeatedly moves back and forth under the change of the weight of the waste sand in the crushing cylinder 2, so that the waste sand is more finely crushed.

[0045] Working principle: in use, the feeding device puts the casting waste sand to be treated into the crushing cylinder 2, the driving shaft 62 rotates to drive the crushing cylinder 2 to rotate, so that the smaller size waste sand falls from the discharge chute 71 to the fixed cylinder 4, and the large waste sand is broken in the rotation of the crushing cylinder 2 and falls into the waste sand on the fixed cylinder 4, the waste sand meeting the specification size of the screen 83 falls from the screen 83, and the waste sand that cannot pass through the screen 83 is intercepted at different positions by the second blade 82 and the umbrella-shaped blade 84, avoiding accumulation at the same place to affect the crushing effect, the crushing cylinder 2 rotates to drive the first blade 81 and the second blade 82 and the umbrella-shaped blade 84 to overlap in turn, cutting and crushing the waste sand intercepted by the second blade 82 and the umbrella-shaped blade 84, during the crushing process, the small particle waste sand generated moves to the screen 83 under the action of gravity and falls, the waste sand that cannot pass through the screen 83 continues to be crushed between the crushing cylinder 2 and the fixed cylinder 4, when the waste sand in the crushing cylinder 2 is too much, the feeding device stops feeding, the gravity sensor controls the electric telescopic rod 96 to extend, so that the second sliding block 97 pushes the movable rod 91 to move towards the fixed cylinder 4, so that the crushing cylinder 2 is displaced during rotation, so that the distance between the first blade 81 and the second blade 82 and the umbrella-shaped blade 84 changes, so that the size of the waste sand produced after crushing is smaller than before, and the crushing effect is enhanced, when the weight of the waste sand in the crushing cylinder 2 is too small, the feeding device continues to feed, the electric telescopic rod 96 is shortened, and the movable rod 91 pulls the crushing cylinder 2 to reset, so that the waste sand can quickly fall from the screen 83.

[0046] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An energy-saving electric waste sand crushing and grinding machine, comprising a base and a fixed cylinder, wherein a support seat is fixedly connected between the bottom of the fixed cylinder and the top of the base, a crushing cylinder is disposed inside the fixed cylinder, a driving mechanism is disposed at one end of the crushing cylinder, the driving mechanism includes a driving shaft passing through the crushing cylinder, and a first crushing mechanism is disposed on the side wall of the crushing cylinder, characterized in that: The connecting plate is fixedly connected to one end of the crushing cylinder, a feeding hopper is fixedly connected to the other end of the crushing cylinder away from the connecting plate, a fixed plate is fixedly connected to the inner wall of the feeding hopper, the fixed plate is parallel to the connecting plate, a discharge port is formed in one side of the supporting seat, a second crushing mechanism is arranged between the crushing cylinder and the fixed cylinder, and an adjusting mechanism is arranged at the end of the crushing cylinder away from the driving mechanism; The driving mechanism is assembled to drive the crushing cylinder to rotate through the rotation of the driving shaft, and provides power for the first crushing mechanism and the second crushing mechanism, the driving mechanism further comprises an inner gear ring fixedly connected to the connecting plate and the fixed plate respectively, and a fixed tooth is fixedly connected to the outer wall of the driving shaft and engaged with the inner gear ring, a driving motor is arranged at the end of the crushing cylinder close to the connecting plate, and the output end of the driving motor is fixedly connected to the driving shaft; The first crushing mechanism is assembled to make the cast sand waste in the crushing cylinder receive impact in rotation and be preliminarily screened and crushed under the action of the driving mechanism, the first crushing mechanism comprises a discharging groove uniformly formed in the side wall of the crushing cylinder, and a fixed nail is fixedly connected in the discharging groove, and the tip of the fixed nail faces the inside of the crushing cylinder; The second crushing mechanism is assembled to further crush and grind the cast sand waste preliminarily processed through the cooperation between the rotating crushing cylinder and the fixed fixed cylinder, the second crushing mechanism comprises a first blade fixedly connected to the outer wall of the crushing cylinder, a screen mesh fixedly connected to the bottom of the fixed cylinder, two groups of second blades arranged on the two sides of the screen mesh respectively, the second blades fixedly connected to the inner wall of the fixed cylinder, a group of umbrella-shaped blades fixedly connected to the top of the screen mesh, the blade gap of the second blades being the same as the blade gap of the umbrella-shaped blades, the second blades and the umbrella-shaped blades being staggered with the first blade, the diameter of the crushing cylinder being smaller than the diameter of the fixed cylinder, the distance between the two fixed nails being greater than the distance between the two umbrella-shaped blades, and the distance between the two umbrella-shaped blades being greater than the screen hole size of the screen mesh; The adjusting mechanism is assembled to adjust the position of the crushing cylinder according to the weight of the cast sand waste in the crushing cylinder during the crushing process of the equipment, and change the crushing effect of the second crushing mechanism, the adjusting mechanism comprises a movable rod rotationally connected to the fixed plate, a bearing arranged between the movable rod and the fixed plate, a first sliding block fixedly connected to the end of the movable rod away from the fixed plate, a fixed seat fixedly connected to the top of the base, a second sliding groove formed in the side of the fixed seat close to the movable rod, an active slot formed in the inner top of the fixed seat, an electric telescopic rod fixedly connected to the bottom of the active slot, a second sliding block fixedly connected to the top of the electric telescopic rod, a first sliding groove formed in the top of the second sliding block, a gravity sensor fixedly installed on the outer wall of the connecting plate, the gravity sensor being electrically connected to the electric telescopic rod, the first sliding block being slidingly connected to the first sliding groove, and the contact surfaces of the movable rod and the second sliding block being both arranged as inclined surfaces.

2. The energy-saving electric waste sand crushing and grinding machine according to claim 1, characterized in that: The driving motor and the fixed seat are respectively located at the two ends of the crushing cylinder.

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