Stone crushing device

Abstract

The utility model discloses a stone crushing device which comprises a box body, a damping structure, a crushing structure capable of controlling the crushing distance and an auxiliary structure, through cavities are formed in the two sides of the interior of the box body respectively, two sets of moving structures are arranged in the two through cavities, and two sets of crushing structures are arranged between the two sets of moving structures. Two auxiliary structures for assisting crushing are arranged on the two sides of the top in the box body correspondingly, a damping structure is fixedly connected to the bottom of the box body, and universal self-locking wheels are fixedly connected to the four corners of the bottom of the damping structure correspondingly. According to the stone crushing device, the distance between the two crushing rollers can be adjusted through cooperation of the moving structure and the crushing structure, stone crushing work with different diameter requirements can be completed in sequence, when redundant stones fall to the two sides of the crushing rollers, the stones are crushed through cooperation of the crushing rollers, baffles and crushing cutters, and the stone crushing efficiency is improved. Friction between stones and the inner wall of the crushing box is avoided, the crushing quality of the crusher is improved, and the service life of the crusher is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of earthwork engineering construction, in particular to a stone crushing device. Background Art

[0002] Earthwork is a type of civil engineering, including site leveling, foundation pit and trench excavation, roadbed excavation, civil air defense excavation, ground filling, roadbed filling and foundation pit backfilling. In the construction process of earthwork, it is often necessary to use relevant equipment to crush stones, and it is often necessary to crush stones into gravel of different diameters according to needs to meet landfill requirements.

[0003] A stone crushing device for earthwork construction with announcement number CN217725683U includes a box body and a water pump. The inside of the box body is provided with a crushing chamber, a drainage chamber and a water storage chamber from top to bottom in sequence. A crushing mechanism is provided inside the crushing chamber, and a nozzle is fixedly installed inside the crushing chamber. A second motor is fixedly installed outside the box body. The output end of the second motor is fixedly connected to a rotating shaft through a coupling. The end of the rotating shaft away from the second motor is passed through the inside of the box body and is rotatably connected to the inner wall of the drainage chamber. A section of spiral sheet is welded on the rotating shaft. A group of through holes are provided between the drainage chamber and the water storage chamber. A support plate is provided below the through hole. A group of plug rods are fixedly connected to the top of the support plate, and each plug rod is respectively passed through the corresponding through hole. By using a nozzle to spray water, dust can be reduced in the process of crushing stones, and the water can be recycled using the through hole to save water resources. In addition, the existing crushing device also has the following disadvantages in use:

[0004] (1) The existing crushing device cannot adjust the spacing between the crushing rollers according to the needs, so that the crushed stones of different diameters need to be assisted by other crushing devices to meet the crushing requirements, which reduces the practicality of the crushing device and increases the crushing cost of the construction party;

[0005] (2) The existing crushing device is not equipped with an auxiliary crushing device. When there is a lot of gravel between the crushing rollers, the excess gravel will fall from both sides of the crushing rollers. If the gravel is small, it can fall directly, affecting the crushing quality of the gravel. If the gravel is large, it will cause the gravel to rub against the inner wall of the crushing box, thereby reducing the service life of the crushing device. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a stone crushing device.

[0007] In order to solve the above problems, the technical solution of the utility model is as follows: it includes a box body, a shock-absorbing structure, a crushing structure capable of controlling the crushing spacing, and an auxiliary structure, wherein through cavities are respectively provided on both sides of the interior of the box body, two groups of moving structures are provided inside the two through cavities, two groups of crushing structures are provided in the middle of the two groups of moving structures, two groups of auxiliary structures for auxiliary crushing are respectively provided on both sides of the top of the box body, the bottom of the box body is fixedly connected to the shock-absorbing structure, and the four corners of the bottom of the shock-absorbing structure are respectively fixedly connected to universal self-locking wheels.

[0008] Furthermore, each group of the shock absorbing structure includes a fixing frame 1, a fixing frame 2, a telescopic rod 1 and a spring 1. The fixing frame 2 is provided at the bottom of the fixing frame 1, and a number of equidistant telescopic rods 1 are provided between the fixing frame 1 and the fixing frame 2. One end of the several telescopic rods 1 is fixedly connected to the fixing frame 1, and the other end is fixedly connected to the fixing frame 2. The outer walls of the several telescopic rods 1 are sleeved with the spring 1.

[0009] Furthermore, a sliding hole is provided at the inner top of the two movable seats, and a threaded hole is provided at the inner bottom of the two movable seats. The two sliding holes are respectively slidably connected to the sliding rod, the threads inside the two threaded holes are opposite, and the two threaded holes are respectively threadedly connected to the threaded rod.

[0010] Furthermore, each group of the auxiliary structures includes a rotating shaft, a baffle, a crushing knife, two telescopic rods, and two springs. The two ends of the rotating shaft are respectively connected to the inner wall of the box body by bearings, the outer wall of the rotating shaft is fixedly connected to the baffle, a side of the baffle close to the crushing structure is provided with a plurality of equidistant crushing knives, a side of the baffle away from the crushing knife is fixedly connected to the two telescopic rods, the top end of the two telescopic rods is fixedly connected to the inner wall of the box body, and the outer wall of the two telescopic rods is sleeved with the two springs.

[0011] Furthermore, the top of the box body is fixedly connected to a feed hopper, and the bottom end of the box body is fixedly connected to a discharge hopper.

[0012] Furthermore, each group of the movable structure includes a threaded rod, a sliding rod, a motor 1 and a movable seat. The inner bottom of the through cavity is provided with a threaded rod, and the inner top of the through cavity is provided with a sliding rod. One end of the threaded rod is movably connected to the inner wall of the through cavity, and the other end passes through the box and is fixedly connected to the output end of motor 1. The moving seat is threadedly connected to both sides of the center of the threaded rod.

[0013] Furthermore, each group of the crushing structure includes a crushing roller, a transmission shaft and a second motor. The crushing roller is provided with a transmission shaft, one end of the transmission shaft is movably connected to a movable seat, and the other end passes through the movable seat and is fixedly connected to the output end of the second motor.

[0014] The advantages of the utility model compared with the existing technology are:

[0015] 1. The utility model provides a stone crushing device. Through the cooperation of the mobile structure and the crushing structure, the motor drives the threaded rod to rotate, and the threaded rod drives the two moving seats to move closer or farther, so as to adjust the distance between the two crushing rollers, and complete the crushing work of stones with different diameter requirements in turn, which greatly increases the practicality of the utility model and reduces the crushing cost of the construction party;

[0016] 2. The utility model provides a stone crushing device, which is provided with an auxiliary structure. When excess stones fall to both sides of the crushing roller, the crushing roller cooperates with the baffle and the crushing knife to crush the stones, thereby avoiding the friction between the stones and the inner wall of the crushing box, which not only increases the crushing quality of the utility model, but also increases the service life of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereogram of the utility model.

[0018] Figure 2 yes Figure 1 Schematic diagram of the mobile structure.

[0019] Figure 3 yes Figure 1 Enlarged view of the internal structure of the middle box.

[0020] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0021] As shown in the figure: 1. Box body; 2. Shock-absorbing structure; 201. Fixed frame 1; 202. Fixed frame 2; 203. Telescopic rod 1; 204. Spring 1; 3. Universal self-locking wheel; 4. Discharge funnel; 5. Feed funnel; 6. Through cavity; 7. Moving structure; 701. Threaded rod; 702. Sliding rod; 703. Motor 1; 704. Moving seat; 705. Sliding hole; 706. Threaded hole; 8. Crushing structure; 801. Crushing roller; 802. Transmission shaft; 803. Motor 2; 9. Auxiliary structure; 901. Rotating shaft; 902. Baffle; 903. Crushing knife; 904. Telescopic rod 2; 905. Spring 2. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] like Figure 1As shown, it includes a box body 1, a shock absorbing structure 2, a crushing structure 8 and an auxiliary structure 9 that can control the crushing distance. Through cavities 6 are respectively arranged on both sides of the box body 1. Two groups of moving structures 7 are arranged inside the two through cavities 6. Two groups of crushing structures 8 are arranged between the two groups of moving structures 7. Two groups of auxiliary structures 9 for auxiliary crushing are respectively arranged on both sides of the top of the box body 1. The bottom of the box body 1 is fixedly connected to the shock absorbing structure 2. The four corners of the bottom of the shock absorbing structure 2 are respectively fixedly connected to the universal self-locking wheels 3. The top of the box body 1 is fixedly connected to the feeding funnel 5. The bottom end of the box body 1 is fixedly connected to the discharge funnel 4, and each group of shock absorbing structures 2 includes a fixed frame 201, a fixed frame 202, a telescopic rod 203 and a spring 204. The bottom of the fixed frame 201 is provided with a fixed frame 202, and a plurality of equidistant telescopic rods 203 are provided between the fixed frame 201 and the fixed frame 202. One end of the plurality of telescopic rods 203 is fixedly connected to the fixed frame 201, and the other end is fixedly connected to the fixed frame 202. The outer walls of the plurality of telescopic rods 203 are sleeved with a spring 204.

[0024] like Figure 2 As shown, each group of moving structures 7 includes a threaded rod 701, a slide rod 702, a motor 703 and a moving seat 704. The inner bottom of the through cavity 6 is provided with a threaded rod 701, and the top and bottom of the through cavity 6 are respectively provided with slide grooves. The inner top of the through cavity 6 is provided with a slide rod 702. One end of the threaded rod 701 is movably connected to the inner wall of the through cavity 6, and the other end passes through the box body 1 and is fixedly connected to the output end of the motor 703. The two sides of the center of the threaded rod 701 are respectively threadedly connected to the moving seats 704. The top and bottom ends of the two moving seats 704 are respectively fixedly connected to the slide blocks. The four slide blocks are respectively adapted to be connected with the slide grooves. The inner tops of the two moving seats 704 are provided with slide holes 705 , threaded holes 706 are provided at the inner bottom of the two movable seats 704, and the two sliding holes 705 are respectively slidably connected to the sliding rod 702, and the threads inside the two threaded holes 706 are opposite, and the two threaded holes 706 are respectively threadedly connected to the threaded rod 701. Through the cooperation of the movable structure 7 and the crushing structure 8, the threaded rod 701 is driven to rotate by the motor 1 703, and the two movable seats 704 are driven to move closer or farther through the threaded rod 701, so as to adjust the distance between the two crushing rollers 801, and complete the crushing work of gravel with different diameter requirements in turn, which greatly increases the practicality of the utility model and reduces the crushing cost of the construction party.

[0025] like Figure 3 and Figure 4As shown, each group of crushing structures 8 includes a crushing roller 801, a transmission shaft 802 and a second motor 803. The crushing roller 801 is provided with a transmission shaft 802. One end of the transmission shaft 802 is movably connected to the moving seat 704, and the other end passes through the moving seat 704 and is fixedly connected to the output end of the second motor 803. The gears of the two crushing rollers 801 can mesh. Each group of auxiliary structures 9 includes a rotating shaft 901, a baffle 902, a crushing knife 903, a second telescopic rod 904, and a second spring 905. The two ends of the rotating shaft 901 are respectively connected to the inner wall of the box body 1 by bearings, and the outer wall of the rotating shaft 901 is fixedly connected to the baffle 902. The baffle A plurality of equidistant crushing knives 903 are provided on the side of 902 close to the crushing structure 8, and a side of the baffle 902 away from the crushing knives 903 is fixedly connected to a telescopic rod 904, the top of the telescopic rod 904 is fixedly connected to the inner wall of the box body 1, and the outer wall of the telescopic rod 904 is sleeved with a spring 905. Through the auxiliary structure 9, when excess stones fall to both sides of the crushing roller 801, the crushing roller 801 cooperates with the baffle 902 and the crushing knives 903 to crush the stones, thereby avoiding friction between the stones and the inner wall of the box body 1, which not only increases the crushing quality of the utility model, but also increases the service life of the utility model.

[0026] In specific use, refer to Figures 1 to 4 As shown, first, the utility model is moved to a suitable position by the universal self-locking wheel 3, and then the motor 703 is started, and the threaded rod 701 is driven to rotate by the motor 703, and the two moving seats 704 are driven to move to a suitable position by the rotation of the threaded rod 701, so as to adjust the distance between the two crushing rollers 801, and then the stones to be crushed are put into the interior of the box body 1 through the feeding funnel 5, and the stones are crushed by the two crushing rollers 801. When the excess stones fall on both sides of the crushing roller 801, the crushing roller 801 cooperates with the baffle 902, the crushing knife 903, the telescopic rod 904 and the spring 905 to crush the stones, so as to avoid the friction between the stones and the inner wall of the box body 1, and the crushed stones are discharged through the discharging funnel 4.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0029] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A stone crushing device, characterized in that: The invention comprises a box body (1), a shock absorbing structure (2), a crushing structure (8) capable of controlling the crushing interval, and an auxiliary structure (9); through cavities (6) are respectively arranged on both sides of the box body (1); two groups of movable structures (7) are arranged inside the two through cavities (6); two groups of crushing structures (8) are arranged between the two groups of movable structures (7); two groups of auxiliary structures (9) for auxiliary crushing are respectively arranged on both sides of the top of the box body (1); the bottom of the box body (1) is fixedly connected to the shock absorbing structure (2); and the four corners of the bottom of the shock absorbing structure (2) are respectively fixedly connected to universal self-locking wheels (3); Each group of the auxiliary structures (9) comprises a rotating shaft (901), a baffle (902), a crushing knife (903), a second telescopic rod (904), and a second spring (905). The two ends of the rotating shaft (901) are respectively connected to the inner wall of the box body (1) by bearings, the outer wall of the rotating shaft (901) is fixedly connected to the baffle (902), a side of the baffle (902) close to the crushing structure (8) is provided with a plurality of equidistant crushing knives (903), a side of the baffle (902) away from the crushing knife (903) is fixedly connected to the second telescopic rod (904), the top end of the second telescopic rod (904) is fixedly connected to the inner wall of the box body (1), and the outer wall of the second telescopic rod (904) is sleeved with the second spring (905).

2. A stone crushing device according to claim 1, characterized in that: The top of the box body (1) is fixedly connected to a feed hopper (5), and the bottom of the box body (1) is fixedly connected to a discharge hopper (4).

3. A stone crushing device according to claim 1, characterized in that: Each group of the shock absorbing structures (2) comprises a fixing frame 1 (201), a fixing frame 2 (202), a telescopic rod 1 (203) and a spring 1 (204); a fixing frame 2 (202) is arranged at the bottom of the fixing frame 1 (201); a plurality of equidistant telescopic rods 1 (203) are arranged between the fixing frame 1 (201) and the fixing frame 2 (202); one end of the plurality of telescopic rods 1 (203) is fixedly connected to the fixing frame 1 (201), and the other end is fixedly connected to the fixing frame 2 (202); and the outer walls of the plurality of telescopic rods 1 (203) are sleeved with the spring 1 (204).

4. A stone crushing device according to claim 1, characterized in that: Each group of the movable structure (7) comprises a threaded rod (701), a sliding rod (702), a motor (703) and a movable seat (704); the inner bottom of the through cavity (6) is provided with a threaded rod (701); the inner top of the through cavity (6) is provided with a sliding rod (702); one end of the threaded rod (701) is movably connected to the inner wall of the through cavity (6); the other end passes through the box body (1) and is fixedly connected to the output end of the motor (703); the two sides of the center of the threaded rod (701) are respectively threadedly connected to the movable seat (704).

5. A stone crushing device according to claim 4, characterized in that: The inner top of the two movable seats (704) is provided with a sliding hole (705), and the inner bottom of the two movable seats (704) is provided with a threaded hole (706). The two sliding holes (705) are respectively slidably connected to the sliding rod (702). The threads inside the two threaded holes (706) are opposite, and the two threaded holes (706) are respectively threadedly connected to the threaded rod (701).

6. A stone crushing device according to claim 1, characterized in that: Each group of the crushing structures (8) comprises a crushing roller (801), a transmission shaft (802) and a second motor (803); the crushing roller (801) is provided with a transmission shaft (802) passing through the interior of the crushing roller (801); one end of the transmission shaft (802) is movably connected to a movable seat (704), and the other end passes through the movable seat (704) and is fixedly connected to the output end of the second motor (803).

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