Concrete raw material crushing equipment

Abstract

The utility model belongs to the technical field of crushing equipment, and particularly relates to concrete raw material crushing equipment which comprises a machine shell, the inner side wall of the machine shell is rotationally connected with a pair of rotating shafts, the outer side walls of the rotating shafts are fixedly connected with evenly-distributed splines, and rotating rollers are inserted into the outer side walls of the rotating shafts. The outer side wall of the rotating roller is fixedly connected with inner teeth which are evenly distributed, and the outer side walls of the inner teeth are sleeved with crushing teeth. When a certain crushing tooth needs to be replaced, the locking bolt is firstly screwed off, the connection between the locking plate and the machine shell is released, the pull block is pulled to enable the connecting box to rotate, the nut is screwed off through a tool, the mounting bolt is pulled out, the crushing tooth and the inner tooth can be separated, and a new crushing tooth can be replaced, and the rotating shaft and the rotating roller can also be detached, so that replacement is convenient; and the spline can prevent slipping, the damaged part can be independently replaced, the cost is reduced, later maintenance and replacement are facilitated, the integrity of the crushing teeth is kept, and the crushing quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing equipment, in particular to a concrete raw material crushing equipment. Background Art

[0002] Concrete refers to an artificial stone made by mixing cement as the main cementitious material with water, sand, gravel, and chemical admixtures and mineral admixtures when necessary, in appropriate proportions, and through uniform mixing, compacting, forming, and curing and hardening. Concrete has the characteristics of abundant raw materials, low price, and simple production process, so its usage is increasing. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades. These characteristics make it widely used. It is not only used in various civil engineering projects, but also in shipbuilding, machinery industry, marine development, geothermal engineering, etc. Concrete is also an important material;

[0003] China Public Invention: CN202020351618.3 provides an improved raw material crushing device for concrete production, including: a crushing box, the crushing box is fixed on a processing platform, a feed hopper is provided on the feed port of the crushing box, a discharge guide plate is provided on the discharge port of the crushing box, two groups of crushing tooth assemblies arranged alternately with each other are provided in the crushing box, both ends of the crushing tooth assemblies are installed on the crushing box through crushing tooth mounting bearing seats, one end of one group of crushing tooth assemblies is provided with a driving gear, and one end of the other group of crushing tooth assemblies is provided with a driven gear, and the driving gear and the driven gear are meshed for transmission, the crushing tooth assembly includes a crushing tooth drive shaft, a crushing tooth mounting boss is provided in the middle of the crushing tooth drive shaft, a plurality of crushing teeth are installed on the crushing tooth mounting boss, and both sides of the crushing teeth are installed on the crushing tooth mounting boss through crushing tooth fixing nuts. The utility model can achieve uniform crushing, provide relatively uniform production raw materials, and can avoid material leakage and ensure processing quality;

[0004] After the crushing equipment has been used for a period of time, the crushing teeth are prone to wear or breakage, resulting in inconsistent crushing quality. When replacing, the entire crushing tooth assembly needs to be dismantled, which is costly and inconvenient for subsequent maintenance and replacement. Therefore, a concrete raw material crushing equipment is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a concrete raw material crushing device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete raw material crushing equipment, comprising a casing, an inner side wall of the casing is rotatably connected to a pair of rotating shafts, the outer side wall of the rotating shaft is fixedly connected to evenly distributed splines, the outer side wall of the rotating shaft is inserted with a rotating roller, the outer side wall of the rotating roller is fixedly connected to evenly distributed inner teeth, the outer side wall of the inner teeth is sleeved with crushing teeth, the inner teeth and the inner side wall of the crushing teeth are inserted with mounting bolts, the outer side wall of the mounting bolts is threadedly connected with a nut, the upper surface of the casing is hinged with a connecting box, the right side wall of the connecting box is installed with a feed hopper, the front surface of the casing is installed with a reduction motor, the front end of one of the rotating shafts is fixedly connected to the output end of the reduction motor, and the outer side wall of the rotating shaft is fixedly connected with a gear.

[0007] As a further preferred embodiment of the technical solution: a pull block is fixedly connected to the upper surface of the connection box.

[0008] As a further preferred embodiment of the technical solution: a locking plate is fixedly connected to the right side wall of the connection box, a locking hole is opened on the right side wall of the housing, and a locking bolt is threadedly connected to the inner side wall of the locking hole.

[0009] As a further preferred embodiment of the present technical solution: a guide plate is fixedly connected to the left side of the inner wall of the connection box.

[0010] As a further preferred embodiment of the technical solution: the inner side wall of the connection box is fixedly connected with a fixing rod, and the outer side wall of the fixing rod is rotatably connected with evenly distributed blocking pieces.

[0011] As a further preferred embodiment of the technical solution: the outer side wall of the casing is fixedly connected to a frame, and the lower surface of the casing is fixedly connected to a lower hopper.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model discloses that when it is found that a certain crushing tooth needs to be replaced, the locking bolt is first unscrewed, the connection between the locking plate and the casing is released, the pulling block is pulled to rotate the connecting box, the nut is unscrewed by a tool, and the mounting bolt is pulled out to separate the crushing tooth and the inner tooth, and a new crushing tooth can be replaced. The rotating shaft and the rotating roller can also be disassembled for easy replacement. The spline can prevent slipping, and the damaged part can be replaced separately, which reduces the cost and is convenient for later maintenance and replacement, keeps the integrity of the crushing tooth, and improves the crushing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the gear, locking hole and locking bolt in the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the rotating shaft, spline and rotating roller in the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the inner teeth, crushing teeth and mounting bolts in the utility model;

[0018] Figure 5 It is a schematic cross-sectional structural diagram of the guide plate, the fixing plate and the baffle in the utility model.

[0019] In the figure: 1. casing; 2. shaft; 3. spline; 4. roller; 5. internal teeth; 6. crushing teeth; 7. mounting bolts; 8. nuts; 9. connecting box; 10. feed hopper; 11. reduction motor; 12. gear; 13. pull block; 14. locking plate; 15. locking hole; 16. locking bolt; 17. guide plate; 18. fixing rod; 19. baffle; 20. frame; 21. lower hopper. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limitations on the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] See also Figure 1-5The utility model provides a technical solution: a concrete raw material crushing equipment, including a casing 1, the inner side wall of the casing 1 is rotatably connected with a pair of rotating shafts 2, the outer side wall of the rotating shaft 2 is fixedly connected with evenly distributed splines 3, the outer side wall of the rotating shaft 2 is inserted with a rotating roller 4, the outer side wall of the rotating roller 4 is fixedly connected with evenly distributed inner teeth 5, the outer side wall of the inner teeth 5 is sleeved with crushing teeth 6, the inner side walls of the inner teeth 5 and the crushing teeth 6 are inserted with mounting bolts 7, the outer side wall of the mounting bolts 7 is threadedly connected with nuts 8, the upper surface of the casing 1 is hinged with a connecting box 9, the right side wall of the connecting box 9 is installed with a feeding hopper 10, the front surface of the casing 1 is installed with a reduction motor 11, the front end of a rotating shaft 2 is fixedly connected to the output end of the reduction motor 11, and the outer side wall of the rotating shaft 2 is fixedly connected with a gear 12 When in use, the concrete raw material is put into the connecting box 9 through the feed hopper 10, and the reduction motor 11 is started to drive one shaft 2 to rotate. The two gears 12 are meshed with each other to drive the other shaft 2 to rotate, so that the two rollers 4 rotate in the opposite direction, and the large pieces of concrete raw materials are crushed by multiple crushing teeth 6. When it is found that a certain crushing tooth 6 needs to be replaced, the connecting box 9 is rotated, the nut 8 is unscrewed by a tool, and the mounting bolt 7 is pulled out to separate the crushing tooth 6 and the inner tooth 5, and a new crushing tooth 6 can be replaced. The rotating shaft 2 and the roller 4 can also be disassembled for easy replacement. The spline 3 can prevent slipping, thereby constituting a concrete raw material crushing equipment, and the damaged part can be replaced separately, which reduces the cost and is convenient for later maintenance and replacement, keeps the integrity of the crushing tooth 6, and improves the crushing quality.

[0023] In this embodiment, specifically: a pull block 13 is fixedly connected to the upper surface of the connection box 9 ; the pull block 13 is convenient for the user to manually move the connection box 9 .

[0024] In this embodiment, specifically: a locking plate 14 is fixedly connected to the right side wall of the connection box 9, a locking hole 15 is opened on the right side wall of the casing 1, and a locking bolt 16 is threadedly connected to the inner wall of the locking hole 15; the locking bolt 16 is screwed into the locking hole 15 to lock the connection box 9 and the casing 1.

[0025] In this embodiment, specifically: a guide plate 17 is fixedly connected to the left side of the inner wall of the connection box 9; the guide plate 17 guides the concrete raw material to fall between the two rollers 4 for easy crushing.

[0026] In this embodiment, specifically: the inner wall of the connection box 9 is fixedly connected with a fixing rod 18, and the outer wall of the fixing rod 18 is rotatably connected with evenly distributed baffles 19; the baffles 19 can block splashing concrete raw materials and dust to a certain extent.

[0027] In this embodiment, specifically: the outer wall of the casing 1 is fixedly connected to a frame 20, and the lower surface of the casing 1 is fixedly connected to a lower hopper 21; the casing 1 is lifted and fixed by the frame 20, and the lower hopper 21 is used to guide the crushed raw materials to be discharged from the casing 1.

[0028] The working principle of the utility model is as follows: when in use, concrete raw materials are put into the connecting box 9 through the feed hopper 10, and the reduction motor 11 is started to drive a rotating shaft 2 to rotate, and the two gears 12 are meshed with each other to drive the other rotating shaft 2 to rotate, so that the two rollers 4 rotate in the opposite direction, and the large pieces of concrete raw materials are crushed by a plurality of crushing teeth 6 and discharged through the lower hopper 21. When it is found that a certain crushing tooth 6 needs to be replaced, the locking bolt 16 is first unscrewed, the connection between the locking plate 14 and the casing 1 is released, and the pulling block 13 is pulled to rotate the connecting box 9, and the nut 8 is unscrewed by a tool, and the mounting bolt 7 is pulled out to separate the crushing tooth 6 from the inner tooth 5, and a new crushing tooth 6 can be replaced, and the rotating shaft 2 and the roller 4 can also be disassembled for easy replacement, and the spline 3 can prevent slipping, thereby constituting a concrete raw material crushing device, and the damaged part can be replaced separately, which reduces the cost and is convenient for later maintenance and replacement, keeps the crushing tooth 6 intact, and improves the crushing quality.

[0029] 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.

Claims

1. A concrete raw material crushing device, comprising a housing (1), characterized in that: The inner side wall of the casing (1) is rotatably connected to a pair of rotating shafts (2), the outer side wall of the rotating shaft (2) is fixedly connected to evenly distributed splines (3), the outer side wall of the rotating shaft (2) is inserted with a rotating roller (4), the outer side wall of the rotating roller (4) is fixedly connected to evenly distributed internal teeth (5), the outer side wall of the internal teeth (5) is sleeved with crushing teeth (6), the inner side walls of the internal teeth (5) and the crushing teeth (6) are inserted with mounting bolts (7), the outer side wall of the mounting bolts (7) is threadedly connected with nuts (8), the upper surface of the casing (1) is hinged with a connecting box (9), the right side wall of the connecting box (9) is installed with a feed hopper (10), the front surface of the casing (1) is installed with a reduction motor (11), the front end of one of the rotating shafts (2) is fixedly connected to the output end of the reduction motor (11), and the outer side wall of the rotating shaft (2) is fixedly connected with a gear (12).

2. The concrete raw material crushing equipment according to claim 1, characterized in that: A pull block (13) is fixedly connected to the upper surface of the connection box (9).

3. The concrete raw material crushing equipment according to claim 1, characterized in that: A locking plate (14) is fixedly connected to the right side wall of the connection box (9), a locking hole (15) is opened on the right side wall of the housing (1), and a locking bolt (16) is threadedly connected to the inner side wall of the locking hole (15).

4. The concrete raw material crushing equipment according to claim 1, characterized in that: A guide plate (17) is fixedly connected to the left side of the inner side wall of the connection box (9).

5. The concrete raw material crushing equipment according to claim 1, characterized in that: The inner wall of the connection box (9) is fixedly connected to a fixing rod (18), and the outer wall of the fixing rod (18) is rotatably connected to evenly distributed blocking pieces (19).

6. The concrete raw material crushing equipment according to claim 1, characterized in that: The outer side wall of the casing (1) is fixedly connected to a frame (20), and the lower surface of the casing (1) is fixedly connected to a lower hopper (21).

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