Concrete accelerator grinding device

Abstract

The utility model discloses a concrete accelerator grinding device, including the machine case, the inner wall of machine case both sides all is connected with support frame in screw thread, the top fixedly connected with telescopic component of support frame, the top fixedly connected with filter screen of telescopic component, the inner wall fixedly connected with two groups of fixed blocks of machine case, the bottom fixedly connected with fixed plate of fixed block, the one side fixedly connected with support component of fixed plate, one end fixedly connected with the shovel board of support component, telescopic component includes the telescopic spring of fixed connection in support frame top. The utility model discloses through the setting of support frame, telescopic component and filter screen, reaches the effect of secondary grinding big particle concrete accelerator, prevents in the grinding process, and the accelerator particle is not adjusted due to the extrusion uneven or the grinding roller gap, leads to part of particle to fail to fully break, ensures the re -extrusion and breakage of grinding roller, makes it reach the fineness required.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete accelerator grinding device, specifically a concrete accelerator grinding device. Background Technology

[0002] A concrete accelerator grinding device is a specialized piece of equipment used to grind concrete accelerators. Its main purpose is to refine the raw materials of the accelerator to improve its solubility and reaction rate in concrete, thereby enhancing the setting speed and strength of the concrete. Accelerators are commonly used in concrete projects requiring rapid hardening, such as tunnel construction, underground engineering, and emergency repairs. The raw materials for accelerators typically include calcium chloride, sodium sulfate, and aluminates. These materials are precisely proportioned and then fed into the grinding device for processing. The performance of the concrete accelerator grinding device directly affects the quality of the accelerator, and consequently, the performance of the concrete.

[0003] Patent document CN216459071U discloses a grinding device for finished concrete accelerator, including a feeding box with a feeding chamber at the top and a drive box fixedly installed on the side of the feeding box. An electric motor is fixedly installed inside the drive box, and a first rotating shaft is fixedly mounted on the output shaft of the electric motor. A drive gear and a first grinding roller are fixedly mounted on the surface of the first rotating shaft, and a driven gear is meshed on the surface of the drive gear. In this solution, the finished accelerator inevitably clumps during transportation and storage. Large particles of the accelerator are difficult to mix completely with the concrete after being added, reducing the efficiency of the accelerator. This device addresses this by pressing the accelerator between two grinding rollers, turning the larger clumps into smaller particles. A scraper prevents the accelerator from sticking to the grinding rollers and being carried into the device, achieving both grinding the accelerator and protecting the device.

[0004] However, when using this device, the accelerator particles are prone to uneven extrusion or improper adjustment of the grinding roller gap, resulting in some particles not being fully crushed. This makes it difficult to grind large-particle concrete accelerator particles for secondary grinding, thus making it difficult for the accelerator particles to reach the required fineness. Utility Model Content

[0005] The main purpose of this utility model is to provide a concrete accelerator grinding device, which can effectively solve the problem in the background art where, during use, accelerator particles are easily damaged due to uneven extrusion or improper adjustment of the grinding roller gap, resulting in some particles not being fully crushed, making it difficult to grind large concrete accelerator particles for secondary grinding, and thus making it difficult for accelerator particles to achieve the required fineness.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A concrete accelerator grinding device includes a casing. Support frames are threaded onto the inner walls of both sides of the casing. A telescopic assembly is fixedly connected to the top of each support frame. A filter screen is fixedly connected to the top of the telescopic assembly. Two sets of fixing blocks are fixedly connected to the inner wall of the casing. A fixing plate is fixedly connected to the bottom of each fixing block. A support assembly is fixedly connected to one side of each fixing plate. A shovel plate is fixedly connected to one end of each support assembly. The telescopic assembly includes a telescopic spring fixedly connected to the top of the support frame. A support seat is fixedly connected to the top of the telescopic spring, and a positioning rod is fixedly connected to the bottom of the support seat. The support assembly also includes a support spring fixedly connected to one side of the fixing plate, and a sliding rod is sleeved inside the support spring.

[0008] Furthermore, a connecting plate is fixedly connected to the bottom of the filter screen, and a vibration motor is fixedly connected to the bottom of the connecting plate.

[0009] Furthermore, two sets of grinding rollers are rotatably connected to the inner wall of the chassis, and two sets of transmission gears are fixedly connected to one end of each grinding roller. The grinding rollers are rotatably connected to one side of the fixed block.

[0010] Furthermore, one end of one set of transmission gears is fixedly connected to a drive motor, and a motor housing is fitted onto the surface of the drive motor.

[0011] Furthermore, a collection box is fixedly connected to the back of the chassis, a connecting pipe is connected to the top of the collection box, one end of the connecting pipe is connected to a conveying pump, and the output end of the conveying pump is connected to a conveying pipe.

[0012] Furthermore, a feed hopper is fixedly connected to the top of the chassis, and two sets of protective plates are fixedly installed on one side of the chassis by bolts.

[0013] Furthermore, the bottom of the chassis is provided with an outlet, and a discharge groove is fixedly connected inside the outlet. Threaded holes are provided on the inner wall of the chassis and the surface of the support frame, and threaded bolts pass through the inside of the threaded holes.

[0014] Furthermore, two sets of limiting plates are fixedly connected to the top of the filter screen, and an extension plate is fixedly connected to one side of the filter screen.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model, through the setting of a support frame, telescopic components, and a filter screen, utilizes a grinding roller to squeeze the concrete accelerator during use. The squeezing causes the concrete accelerator to be crushed and fall, thereby activating a vibration motor to drive the filter screen to vibrate. The telescopic spring deforms under force, generating elastic force, which allows the filter screen to filter out larger particles. With the vibration, the larger particles are carried along the extension plate into the collection box, thereby activating a delivery pump and conveying the large-particle concrete accelerator back to the grinding roller through a connecting pipe. The large-particle concrete accelerator is then re-grinded, thus achieving the effect of secondary grinding of large-particle concrete accelerator. This prevents some particles from not being fully crushed due to uneven squeezing or improper adjustment of the grinding roller gap during the grinding process, ensuring that the accelerator particles reach the required fineness through the re-squeezing and crushing of the grinding roller.

[0017] 2. This utility model, through the setting of the support component and the shovel plate, allows the drive motor to be started during use, driving the transmission gear to make the two sets of grinding rollers run relative to each other. During the grinding process, some concrete accelerator may stick to the grinding rollers due to excessive pressure. The shovel plate then scrapes off the concrete accelerator from the upper surface of the grinding rollers as the grinding rollers rotate. The pressure of the shoveling action causes the shovel plate to squeeze the support spring. The support spring, under stress, expands and contracts, generating elastic force that pushes the shovel plate in the opposite direction. This causes the sliding rod to slide within the fixed plate and maintain its position, thereby relieving some of the pressure on the shovel plate and preventing excessive wear caused by excessive force during use, thus improving the service life of the concrete accelerator grinding device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the grinding roller and transmission gear structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the support frame, telescopic component, and filter screen structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the support component and shovel plate structure of this utility model.

[0023] In the diagram: 1. Chassis; 2. Support frame; 3. Telescopic assembly; 301. Telescopic spring; 302. Support base; 303. Positioning rod; 4. Filter screen; 5. Fixing block; 6. Fixing plate; 7. Support assembly; 701. Support spring; 702. Sliding rod; 8. Shovel plate; 9. Connecting plate; 10. Vibrating motor; 11. Grinding roller; 12. Transmission gear; 13. Drive motor; 14. Motor housing; 15. Collection box; 16. Connecting pipe; 17. Conveying pump; 18. Conveying pipe; 19. Feed hopper; 20. Protective plate; 21. Discharge trough; 22. Threaded bolt; 23. Limiting plate; 24. Extension plate. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-5 This utility model provides a technical solution: a concrete accelerator grinding device, including a housing 1. Support frames 2 are threadedly connected to the inner walls of both sides of the housing 1. A telescopic component 3 is fixedly connected to the top of the support frame 2. Through the arrangement of the support frame 2, telescopic component 3, and filter screen 4, the device achieves the effect of secondary grinding of large-particle concrete accelerator, preventing some particles from failing to be fully crushed due to uneven extrusion or improper adjustment of the gap between the grinding rollers 11 during the grinding process. This ensures that the particles reach the required fineness through further extrusion and crushing by the grinding rollers 11. A filter screen 4 is fixedly connected to the top of the telescopic component 3. Two sets of fixing blocks 5 are fixedly connected to the inner wall of the housing 1, and the bottom of the fixing blocks 5 is fixedly connected to... A fixed plate 6 is attached, and a support component 7 is fixedly connected to one side of the fixed plate 6. The setting of the support component 7 and the shovel plate 8 can relieve some of the pressure on the shovel plate 8, avoid excessive force on the shovel plate 8 during use and cause accelerated wear, and improve the service life of the concrete quick-setting agent grinding device. The shovel plate 8 is fixedly connected to one end of the support component 7. The telescopic component 3 includes a telescopic spring 301 fixedly connected to the top of the support frame 2. A support seat 302 is fixedly connected to the top of the telescopic spring 301, and a positioning rod 303 is fixedly connected to the bottom of the support seat 302. The support component 7 includes a support spring 701 fixedly connected to one side of the fixed plate 6. A sliding rod 702 is sleeved inside the support spring 701.

[0026] Please see Figure 4 A connecting plate 9 is fixedly connected to the bottom of the filter screen 4, and a vibration motor 10 is fixedly connected to the bottom of the connecting plate 9.

[0027] When in use, the vibration motor 10 is started to drive the filter screen 4 to vibrate. The extension spring 301 is deformed by the force to generate elastic force, which makes the filter screen 4 filter larger particles. With the vibration, the larger particles are carried along the extension plate 24 into the collection box 15, thereby achieving the effect of conveniently separating large particles of concrete quick-setting agent and improving the fineness and quality of concrete quick-setting agent.

[0028] Please see Figure 3 Two sets of grinding rollers 11 are rotatably connected to the inner wall of the casing 1. Two sets of transmission gears 12 are fixedly connected to one end of the grinding rollers 11. The grinding rollers 11 are rotatably connected to one side of the fixed block 5. One end of one set of transmission gears 12 is fixedly connected to a drive motor 13. A motor housing 14 is sleeved on the surface of the drive motor 13.

[0029] When in use, the drive motor 13 is started to drive the transmission gear 12. The two sets of transmission gears 12 make the corresponding two sets of grinding rollers 11 run relative to each other, thereby grinding the concrete quick-setting agent. At the same time, the motor housing 14 protects and supports the drive motor 13, and the drive motor 13 provides power.

[0030] Please see Figure 2 A collection box 15 is fixedly connected to the back of the chassis 1. A connecting pipe 16 is connected to the top of the collection box 15. One end of the connecting pipe 16 is connected to a delivery pump 17. The output end of the delivery pump 17 is connected to a delivery pipe 18.

[0031] When the filter screen 4 filters larger particles, the vibration drives the larger particles along the extension plate 24 into the collection box 15, and then the delivery pump 17 is started, and the large particle concrete quick-setting agent is transported back to the grinding roller 11 through the connecting pipe 16, and then the large particle concrete quick-setting agent is re-ground.

[0032] Please see Figure 2 and Figure 4 The top of the casing 1 is fixedly connected to the feed hopper 19, and two sets of protective plates 20 are fixedly installed on one side of the casing 1 by bolts; the bottom of the casing 1 is provided with an outlet, and a discharge groove 21 is fixedly connected inside the outlet; threaded holes are provided on the inner wall of the casing 1 and the surface of the support frame 2, and threaded bolts 22 pass through the inside of the threaded holes; two sets of limiting plates 23 are fixedly connected to the top of the filter screen 4, and an extension plate 24 is fixedly connected to one side of the filter screen 4.

[0033] The feed hopper 19 facilitates the input of concrete accelerator raw materials for grinding, the protective plate 20 seals the machine box 1 to prevent concrete accelerator leakage, the discharge port facilitates the discharge of the ground concrete accelerator, the discharge trough 21 has a smooth surface for easy discharge, and the threaded bolt 22 facilitates the fixing and installation of the support frame 2.

[0034] Working principle: During use, the grinding roller 11 is used to squeeze the concrete quick-setting agent. The squeezing causes the concrete quick-setting agent to be crushed and fall, which then starts the vibration motor 10 to drive the filter screen 4 to vibrate. The extension spring 301 is deformed by the force to generate elastic force, which causes the filter screen 4 to filter out larger particles. With the vibration, the larger particles are carried along the extension plate 24 into the collection box 15, which then starts the delivery pump 17 and transports the large particles of concrete quick-setting agent back to the grinding roller 11 through the connecting pipe 16, and then re-grinds the large particles of concrete quick-setting agent.

[0035] In use, the drive motor 13 is started to drive the transmission gear 12, so that the two sets of grinding rollers 11 run relative to each other. When the grinding rollers 11 are grinding, some concrete quick-setting agent will stick to the grinding rollers 11 if the pressure is too high. Then, the scraper plate 8 is used to scrape off the concrete quick-setting agent on the upper surface of the grinding rollers 11 as the grinding rollers 11 rotate. The pressure of scraping will cause the scraper plate 8 to squeeze the support spring 701. The support spring 701 is stretched and contracted under force to generate elastic force to push the scraper plate 8 in the opposite direction. Then, the sliding rod 702 slides in the fixed plate 6 to maintain the position. The above is the working process of the whole device. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concrete quick-setting agent grinding device, comprising a housing (1), characterized in that: The inner walls on both sides of the chassis (1) are threaded with support frames (2). A telescopic assembly (3) is fixedly connected to the top of the support frame (2). A filter screen (4) is fixedly connected to the top of the telescopic assembly (3). Two sets of fixing blocks (5) are fixedly connected to the inner wall of the chassis (1). A fixing plate (6) is fixedly connected to the bottom of the fixing block (5). A support assembly (7) is fixedly connected to one side of the fixing plate (6). A shovel plate (8) is fixedly connected to one end of the support assembly (7). The telescopic assembly (3) includes a telescopic spring (301) fixedly connected to the top of the support frame (2), a support base (302) fixedly connected to the top of the telescopic spring (301), and a positioning rod (303) fixedly connected to the bottom of the support base (302). The support assembly (7) includes a support spring (701) fixedly connected to one side of the fixed plate (6), and a sliding rod (702) is sleeved inside the support spring (701).

2. The concrete accelerator grinding device according to claim 1, characterized in that: A connecting plate (9) is fixedly connected to the bottom of the filter screen (4), and a vibration motor (10) is fixedly connected to the bottom of the connecting plate (9).

3. The concrete accelerator grinding device according to claim 1, characterized in that: The inner wall of the casing (1) is rotatably connected to two sets of grinding rollers (11), one end of the grinding rollers (11) is fixedly connected to two sets of transmission gears (12), and the grinding rollers (11) are rotatably connected to one side of the fixed block (5).

4. The concrete accelerator grinding device according to claim 3, characterized in that: One end of one of the transmission gears (12) is fixedly connected to a drive motor (13), and a motor housing (14) is fitted onto the surface of the drive motor (13).

5. The concrete accelerator grinding device according to claim 1, characterized in that: A collection box (15) is fixedly connected to the back of the chassis (1). A connecting pipe (16) is connected to the top of the collection box (15). One end of the connecting pipe (16) is connected to a conveying pump (17). The output end of the conveying pump (17) is connected to a conveying pipe (18).

6. The concrete accelerator grinding device according to claim 1, characterized in that: The top of the machine casing (1) is fixedly connected to a feed hopper (19), and two sets of protective plates (20) are fixedly installed on one side of the machine casing (1) by bolts.

7. The concrete accelerator grinding device according to claim 1, characterized in that: The bottom of the chassis (1) is provided with an outlet, and a discharge groove (21) is fixedly connected inside the outlet. The inner wall of the chassis (1) and the surface of the support frame (2) are provided with threaded holes, and a threaded bolt (22) passes through the inside of the threaded hole.

8. The concrete accelerator grinding device according to claim 1, characterized in that: Two sets of limiting plates (23) are fixedly connected to the top of the filter screen (4), and an extension plate (24) is fixedly connected to one side of the filter screen (4).

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