Anti-cracking cement stabilized macadam mixture proportioning structure

Abstract

The utility model relates to anti -crack type cement mixing arrangement technical field provides a kind of anti -crack type cement stabilized macadam mixture proportioning structure, including tank, the edge position of tank bottom end is all fixed with support leg, the bottom end of tank is fixed with discharge pipe, the both sides of tank are all fixed with feeding structure, the inside installation of tank has stirring structure.The utility model is provided with feeding structure, by setting filter screen and brush plate in macadam feeding barrel inside, brush plate can be stirred when rotating, and the macadam that meets the requirement is made to pass through filter screen, and excessive impurity is intercepted on filter screen, effectively avoid that impurity mixes in mixture, guarantee the purity of raw material, and then help to improve the quality of mixture, and by the cooperation of scraping rod and stirring rod in cement feeding barrel, scraping rod can scrape the cement attached on the inner wall of barrel, and stirring rod stirs cement, which can prevent cement caking and improve the performance of mixture.

Description

Technical Field

[0001] This utility model relates to the technical field of crack-resistant cement mixing equipment, and in particular to a crack-resistant cement-stabilized crushed stone mixture proportioning structure. Background Technology

[0002] Crack-resistant cement-stabilized crushed stone mixture is a cement-stabilized semi-rigid base course material that significantly reduces the risk of shrinkage cracks through optimized material composition, mix design, and construction technology. A specific mix design for crack-resistant cement-stabilized crushed stone mixture refers to a mix proportion scheme for a semi-rigid base course material that significantly reduces shrinkage cracks by optimizing material composition, gradation design, cement content, and the use of crack-resistant additives. Its core objective is to balance strength and crack resistance, meeting the mechanical requirements of the road base course while reducing the risk of cracking caused by drying shrinkage and thermal shrinkage, thereby improving the durability and service life of the pavement.

[0003] To this end, patent CN222079652U discloses a cement-stabilized crushed stone mixture proportioning device, relating to the field of cement processing technology. This utility model includes a tank assembly, inside which is a stirring mechanism for mixing materials. A mounting frame is installed on the top surface of the tank assembly, and a hopper is hinged inside the mounting frame. Four sets of weighing sensors are installed on the bottom inner side of the hopper for weighing materials. This utility model weighs materials through the weighing sensors between the pressure plate and the hopper. Different materials are weighed separately using the pressure plate and weighing sensors in multiple hoppers. When a set weight is reached, a controller extends an electric push rod to tilt the hopper, causing the material in the hopper to pour into the tank assembly. The stirring mechanism then mixes and stirs the materials in the tank assembly, ensuring thorough mixing.

[0004] The cement-stabilized crushed stone mixture proportioning equipment mentioned above is not convenient for filtering impurities during the material feeding process, which may lead to impurities being mixed into the mixture and affecting the quality. Also, it is not convenient to scrape off the material adhering to the inner wall of the hopper during feeding. Discharging the material by turning the hopper over may result in uneven feeding, thus affecting the proportioning accuracy. Utility Model Content

[0005] The purpose of this invention is to provide a crack-resistant cement-stabilized crushed stone mixture proportioning structure to solve the problem of uneven feeding in existing cement-stabilized crushed stone mixture proportioning equipment.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a crack-resistant cement-stabilized crushed stone mixture proportioning structure, including a tank body;

[0007] Support legs are fixed at the bottom edge of the tank body, a discharge pipe is fixed at the bottom of the tank body, and feeding structures are fixed on both sides of the tank body. The feeding structure includes a first support cylinder fixed to one side of the tank body and a second support cylinder fixed to the other side of the tank body. A first motor is fixed at the top of both the first and second support cylinders. A first rotating shaft is installed inside both the first and second support cylinders. Spiral blades are fixed to the outside of the first rotating shaft. A drop pipe is fixed to one side of the bottom of both the first and second support cylinders. A feed pipe is fixed to one side of the top of both the first and second support cylinders. A crushed stone feed hopper is installed at the top of the drop pipe on one side of the first support cylinder, and a cement feed hopper is installed at the top of the drop pipe on one side of the second support cylinder.

[0008] A liquid feed cylinder is fixed to one side of the top of the tank, and a stirring structure is installed inside the tank.

[0009] Preferably, a valve is installed on the outside of the discharge pipe, a scale line and an observation port are provided on the outside of the liquid feed cylinder, and a valve is installed at the bottom of the liquid feed cylinder.

[0010] Preferably, a second rotating shaft is installed on one side of the first support cylinder inside the crushed stone feeding hopper, and a third rotating shaft is installed on one side of the second support cylinder inside the cement feeding hopper. A transmission wheel is fixed to the top of the second rotating shaft, the third rotating shaft, and the first rotating shaft. A transmission belt is installed on the outer side of the transmission wheel. Brush plates are fixed on both sides of the bottom of the second rotating shaft inside the crushed stone feeding hopper. A filter screen is installed inside the crushed stone feeding hopper at the bottom of the brush plate. Scraper rods are fixed on both sides of the bottom of the third rotating shaft inside the cement feeding hopper. A stirring rod is fixed on one side of the scraper rod.

[0011] Preferably, the first and second support cylinders are symmetrically distributed on both sides of the tank body, the top end of the first rotating shaft is fixedly connected to the output end of the first motor, a valve is installed on the outside of the discharge pipe, one end of each feed pipe extends through one side of the tank body into the interior of the tank body, and scale lines and observation windows are provided on the outside of the crushed stone feed hopper and the cement feed hopper.

[0012] With the above structure, during use, the first motor drives the first rotating shaft to rotate, which in turn drives the spiral blades on the outside of the first rotating shaft to rotate, thereby realizing the upward conveying of crushed stone and cement entering the first and second support cylinders, ensuring the material is conveyed, and the scale lines and observation window facilitate precise proportioning, ensuring that the two raw materials enter the tank according to the set ratio.

[0013] Preferably, the brush plates are symmetrically distributed on both sides of the bottom of the second rotating shaft, and the bottom end of the brush plate abuts against the top end of the filter screen.

[0014] With the above structure, the brush plates are symmetrically distributed on both sides of the bottom of the second rotating shaft during use. When rotating, they can apply a stirring force to the crushed stone from both sides at the same time, so that the crushed stone rolls and disperses evenly on the filter screen, ensuring that the crushed stone is fully filtered. The brush plates also scrape off the crushed stone particles stuck in the filter screen pores, preventing the filter screen from clogging.

[0015] Preferably, the scraper rods are symmetrically distributed on both sides of the bottom of the third rotating shaft, one side of the scraper rod abuts against the inner wall of the cement feeding bucket, one side of the scraper rod is made of rubber material, and the stirring rods are evenly distributed on one side of the scraper rod.

[0016] With the above structure, when in use, the scraper rotates to scrape the cement inside the feed hopper, which avoids the cement from sticking to the inner wall and reducing the accuracy of the mix proportion. At the same time, while the scraper scrapes the cement off the hopper wall, the mixing rod disperses the falling cement particles evenly, preventing the cement from accumulating at the bottom of the hopper and reducing the feeding efficiency.

[0017] Preferably, the stirring structure includes a second motor fixed to the top of the tank, a fourth rotating shaft installed inside the tank, a stirring paddle fixed to the outside of the fourth rotating shaft, a scraper fixed to one side of the top of the fourth rotating shaft, and a spiral rod fixed to the outside of the bottom of the fourth rotating shaft.

[0018] Preferably, the top end of the fourth rotating shaft is fixedly connected to the output end of the second motor, the stirring paddles are evenly distributed on the outside of the fourth rotating shaft, one side of the scraper abuts against the inner wall of the tank, and one side of the scraper is made of rubber.

[0019] With the above structure, the mixing paddles are evenly distributed on the outside of the fourth rotating shaft during use. When rotating, they can form a multi-layer mixing zone, covering materials at different heights in the tank. Combined with the action of the screw rod, a three-dimensional circulating mixing is formed, ensuring that the crushed stone, cement and liquid are fully mixed, and improving the uniformity and crack resistance of the mixture.

[0020] The present invention provides a crack-resistant cement-stabilized crushed stone mixture mix proportion structure, the advantages of which are:

[0021] The feeding structure includes a filter screen and brush plate inside the crushed stone feeding hopper. When the brush plate rotates, it can agitate the crushed stone, allowing the qualified crushed stone to pass through the filter screen, while excessively large impurities are intercepted on the filter screen. This effectively prevents impurities from mixing into the mixture, ensuring the purity of the raw materials and thus helping to improve the quality of the mixture. In addition, the scraper and agitator inside the cement feeding hopper work together. The scraper can scrape off the cement adhering to the inner wall of the hopper, and the agitator can agitate the cement, which can prevent cement from clumping and help improve the performance of the mixture.

[0022] The equipment is equipped with a stirring structure. The scraper can scrape off the material adhering to the inner wall of the tank, preventing the material from accumulating on the inner wall. The rotating screw can push the material at the bottom of the tank downwards, preventing the material from clogging inside the discharge pipe. This ensures smooth discharge of the mixture and improves the working efficiency of the equipment. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the second rotating shaft of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the third rotating shaft of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the stirring structure of this utility model.

[0028] The following are the annotations in the diagram: 1. Tank body; 2. Support leg; 3. Discharge pipe; 4. Feeding structure; 401. First support cylinder; 402. Second support cylinder; 403. First motor; 404. First rotating shaft; 405. Spiral blade; 406. Drop pipe; 407. Feed pipe; 408. Crushed stone feed hopper; 409. Cement feed hopper; 410. Second rotating shaft; 411. Third rotating shaft; 412. Drive wheel; 413. Drive belt; 414. Brush plate; 415. Filter screen; 416. Scraper; 417. Stirring rod; 5. Liquid feed cylinder; 6. Stirring structure; 601. Second motor; 602. Fourth rotating shaft; 603. Stirring paddle; 604. Scraper; 605. Spiral rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-5 The present invention provides a crack-resistant cement-stabilized crushed stone mixture proportioning structure, including a tank body 1.

[0031] Reference Figures 1-4As shown, support legs 2 are fixed at the bottom edge of the tank body 1. A discharge pipe 3 is fixed at the bottom of the tank body 1, and a valve is installed on the outside of the discharge pipe 3. A feeding structure 4 is fixed on both sides of the tank body 1. The feeding structure 4 includes a first support cylinder 401 fixed on one side of the tank body 1 and a second support cylinder 402 fixed on the other side of the tank body 1. A first motor 403 is fixed at the top of both the first support cylinder 401 and the second support cylinder 402. A first rotating shaft 404 is installed inside both the first support cylinder 401 and the second support cylinder 402. A spiral blade 405 is fixed on the outside of the first rotating shaft 404. A dropper is fixed on one side of the bottom of both the first support cylinder 401 and the second support cylinder 402. Feed pipes 407 are fixed to one side of the top of the material pipe 406, the first support cylinder 401, and the second support cylinder 402. A crushed stone feed hopper 408 is installed at the top of the material drop pipe 406 on one side of the first support cylinder 401, and a cement feed hopper 409 is installed at the top of the material drop pipe 406 on one side of the second support cylinder 402. A second rotating shaft 410 is installed on one side of the first support cylinder 401 inside the crushed stone feed hopper 408, and a third rotating shaft 411 is installed on one side of the second support cylinder 402 inside the cement feed hopper 409. A drive wheel 412 is fixed to the top of the second rotating shaft 410, the third rotating shaft 411, and the first rotating shaft 404. A drive belt 413 is installed on the outside of the drive wheel 412. Inside the crushed stone feeding hopper 408, brush plates 414 are fixed on both sides of the bottom of the second rotating shaft 410. A filter screen 415 is installed inside the crushed stone feeding hopper 408 at the bottom of the brush plates 414. Inside the cement feeding hopper 409, scraper rods 416 are fixed on both sides of the bottom of the third rotating shaft 411. A stirring rod 417 is fixed on one side of the scraper rod 416. The first support cylinder 401 and the second support cylinder 402 are symmetrically distributed on both sides of the tank body 1. The top of the first rotating shaft 404 is fixedly connected to the output end of the first motor 403. A valve is installed on the outside of the discharge pipe 406. One end of the feed pipe 407 extends through one side of the tank body 1 into the interior of the tank body 1. Both the outer sides of the bucket 408 and the cement feeding bucket 409 are equipped with scale lines and observation windows. The brush plates 414 are symmetrically distributed on both sides of the bottom of the second rotating shaft 410. The bottom of the brush plates 414 abuts against the top of the filter screen 415. The scraper rods 416 are symmetrically distributed on both sides of the bottom of the third rotating shaft 411. One side of the scraper rods 416 abuts against the inner wall of the cement feeding bucket 409. One side of the scraper rods 416 is made of rubber. The stirring rods 417 are evenly distributed on one side of the scraper rods 416. A liquid feeding cylinder 5 is fixed on one side of the top of the tank body 1. The outer side of the liquid feeding cylinder 5 is equipped with scale lines and observation ports. A valve is installed at the bottom of the liquid feeding cylinder 5.

[0032] By pouring crushed stone onto the filter screen 415 inside the crushed stone feed hopper 408, the first motor 403 is started. The first motor 403 drives the first rotating shaft 404 to rotate. The first rotating shaft 404 drives the second rotating shaft 410 to rotate via the transmission belt 413 and the transmission wheel 412. The second rotating shaft 410 drives the brush plate 414 to rotate. The brush plate 414 stirs and filters the crushed stone. The crushed stone enters the interior of the crushed stone feed hopper 408 through the filter screen 415. Excessive impurities remain on the filter screen. By observing the scale lines and observation window on the outside of the crushed stone feed hopper 408, the feed rate of the crushed stone is controlled. Then, the valve of the discharge pipe 406 is opened. Under the action of gravity, the crushed stone enters the first support cylinder 401 through the discharge pipe 406. The spiral blades 405 inside the first support cylinder 401 transport the crushed stone upward and enter the interior of the tank 1 through the feed pipe 407. Simultaneously, cement is poured into the cement feed hopper 409. The cement feed rate is controlled by observing the scale lines and observation window on the outside of the cement feed hopper 409. The first motor 403 drives the first rotating shaft 404 to rotate. The first rotating shaft 404 drives the third rotating shaft 411 to rotate via the transmission belt 413 and the transmission wheel 412. The third rotating shaft 411 drives the scraper 416 and the stirring rod 417 to rotate. The scraper 416 scrapes the cement adhering to the inner wall of the cement feed hopper 409, and the stirring rod 417 stirs the cement to prevent it from clumping. Then, the valve of the discharge pipe 406 is opened, and the cement enters the second support cylinder 402 under the action of gravity through the discharge pipe 406. The spiral blades 405 in the second support cylinder 402 transport the cement upwards and enter the tank 1 through the feed pipe 407. The required amount of liquid is measured through the scale lines and observation window on the outside of the liquid feed cylinder 5. The valve of the liquid feed cylinder 5 is opened, and the liquid enters the tank 1 through the feed pipe. This allows for the proportioning and conveying of raw materials while ensuring the uniformity of the feed.

[0033] Reference Figure 2 and Figure 5 As shown, a stirring structure 6 is installed inside the tank 1. The stirring structure 6 includes a second motor 601 fixed to the top of the tank 1, a fourth rotating shaft 602 installed inside the tank 1, a stirring paddle 603 fixed to the outside of the fourth rotating shaft 602, a scraper 604 fixed to one side of the top of the fourth rotating shaft 602, and a spiral rod 605 fixed to the outside of the bottom of the fourth rotating shaft 602. The top of the fourth rotating shaft 602 is fixedly connected to the output end of the second motor 601. The stirring paddles 603 are evenly distributed on the outside of the fourth rotating shaft 602. One side of the scraper 604 abuts against the inner wall of the tank 1. One side of the scraper 604 is made of rubber.

[0034] By starting the second motor 601, the second motor 601 drives the fourth rotating shaft 602 to rotate, and the fourth rotating shaft 602 drives the stirring paddle 603 to rotate. The stirring paddle 603 fully mixes the gravel, cement and liquid in the tank 1, so that the raw materials are evenly mixed. At the same time, the fourth rotating shaft 602 drives the scraper 604 to rotate, and the scraper 604 scrapes off the material adhering to the inner wall of the tank 1 to prevent material accumulation and ensure sufficient mixing. The rotating screw 605 at the bottom of the fourth rotating shaft 602 pushes the material at the bottom of the tank 1 downward to avoid material blockage inside the discharge pipe 3. After the mixture is mixed, the valve on the discharge pipe 3 is opened, and the mixture is discharged from the discharge pipe 3 under the action of gravity, which facilitates the feeding.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A crack-resistant cement-stabilized crushed stone mixture mix design, comprising a tank (1); Its features are: Support legs (2) are fixed at the bottom edge of the tank (1). A discharge pipe (3) is fixed at the bottom of the tank (1). A feeding structure (4) is fixed on both sides of the tank (1). The feeding structure (4) includes a first support cylinder (401) fixed to one side of the tank (1) and a second support cylinder (402) fixed to the other side of the tank (1). A first motor (403) is fixed at the top of both the first support cylinder (401) and the second support cylinder (402). A first motor (403) is installed inside both the first support cylinder (401) and the second support cylinder (402). A rotating shaft (404) is provided. A spiral blade (405) is fixed on the outer side of the first rotating shaft (404). A material drop pipe (406) is fixed on one side of the bottom of the first support cylinder (401) and the second support cylinder (402). A feed pipe (407) is fixed on one side of the top of the first support cylinder (401) and the second support cylinder (402). A crushed stone feed hopper (408) is installed at the top of the material drop pipe (406) on one side of the first support cylinder (401). A cement feed hopper (409) is installed at the top of the material drop pipe (406) on one side of the second support cylinder (402). A liquid feed cylinder (5) is fixed on one side of the top of the tank (1), and a stirring structure (6) is installed inside the tank (1).

2. The crack-resistant cement-stabilized crushed stone mixture mix design according to claim 1, characterized in that: A valve is installed on the outside of the discharge pipe (3), a scale line and an observation port are provided on the outside of the liquid feed cylinder (5), and a valve is installed at the bottom of the liquid feed cylinder (5).

3. The crack-resistant cement-stabilized crushed stone mixture mix design according to claim 1, characterized in that: A second rotating shaft (410) is installed on one side of the first support cylinder (401) inside the crushed stone feed hopper (408). A third rotating shaft (411) is installed on one side of the second support cylinder (402) inside the cement feed hopper (409). A transmission wheel (412) is fixed at the top of the second rotating shaft (410), the third rotating shaft (411) and the first rotating shaft (404). A transmission belt (413) is installed on the outside of the transmission wheel (412). Brush plates (414) are fixed on both sides of the bottom of the second rotating shaft (410) inside the crushed stone feed hopper (408). A filter screen (415) is installed inside the crushed stone feed hopper (408) at the bottom of the brush plate (414). A scraper (416) is fixed on both sides of the bottom of the third rotating shaft (411) inside the cement feed hopper (409). A stirring rod (417) is fixed on one side of the scraper (416).

4. The crack-resistant cement-stabilized crushed stone mixture mix design according to claim 1, characterized in that: The first support cylinder (401) and the second support cylinder (402) are symmetrically distributed on both sides of the tank body (1). The top end of the first rotating shaft (404) is fixedly connected to the output end of the first motor (403). A valve is installed on the outside of the discharge pipe (406). One end of the feed pipe (407) extends through one side of the tank body (1) and into the interior of the tank body (1). The outer sides of the crushed stone feed bucket (408) and the cement feed bucket (409) are provided with scale lines and observation windows.

5. The crack-resistant cement-stabilized crushed stone mixture mix design according to claim 3, characterized in that: The brush plates (414) are symmetrically distributed on both sides of the bottom of the second rotating shaft (410), and the bottom end of the brush plates (414) abuts against the top end of the filter screen (415).

6. The crack-resistant cement-stabilized crushed stone mixture mix design according to claim 3, characterized in that: The scraper (416) is symmetrically distributed on both sides of the bottom of the third rotating shaft (411). One side of the scraper (416) abuts against the inner wall of the cement feed hopper (409). One side of the scraper (416) is made of rubber. The stirring rod (417) is evenly distributed on one side of the scraper (416).

7. The crack-resistant cement-stabilized crushed stone mixture mix design according to claim 1, characterized in that: The stirring structure (6) includes a second motor (601) fixed to the top of the tank (1), a fourth rotating shaft (602) installed inside the tank (1), a stirring paddle (603) fixed to the outside of the fourth rotating shaft (602), a scraper (604) fixed to one side of the top of the fourth rotating shaft (602), and a spiral rod (605) fixed to the outside of the bottom of the fourth rotating shaft (602).

8. The crack-resistant cement-stabilized crushed stone mixture mix design according to claim 7, characterized in that: The top end of the fourth rotating shaft (602) is fixedly connected to the output end of the second motor (601). The stirring paddle (603) is evenly distributed on the outside of the fourth rotating shaft (602). One side of the scraper (604) abuts against the inner wall of the tank (1). One side of the scraper (604) is made of rubber.

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