Gravel crushing equipment for civil engineering

Abstract

The invention discloses gravel crushing equipment for civil engineering. The gravel crushing equipment comprises a rack, a feeding plate, a belt, a driven wheel, a machine shell, a fixed jaw plate, a movable jaw plate, a fixed shaft, a crushing plate, a convex block, an eccentric shaft, a first rotating shaft, a fixed seat, a dust shield, an impact shell, a second rotating shaft, a hammer disc, a hammer head, a positioning shaft and a sieve plate. The multi-stage crushing structure is designed, firstly, large-size gravel raw materials are preliminarily crushed through the jaw type crushing structure, the large-size gravel raw materials are effectively decomposed into small blocks, and then the small gravel blocks are further refined and crushed through the crushing hammer structure; the device can flexibly cope with and adapt to gravel raw materials of various sizes, dust generated by the device is sucked and removed through the dust suction structure, so that the dust concentration of the operation environment is remarkably reduced, the cleanliness and safety of the operation environment are guaranteed, the dust isolation cover is easy to open and close, and a user can conveniently check and maintain the crushing opening.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering, in particular to a sand and gravel crushing device used in civil engineering. Background Art

[0002] As basic building materials in civil engineering, sand and gravel are mainly used in the preparation of building materials such as concrete and mortar. In concrete structures, sand and gravel mainly play the role of skeleton, stabilizing the volume of concrete, transferring stress, and at the same time inhibiting shrinkage and preventing cracking; therefore, the quality and supply of sand and gravel have an important impact on the quality, progress and cost of civil engineering. In civil engineering, sand and gravel aggregates are mainly used to prepare building materials such as concrete and mortar. The aggregates obtained by sand and gravel crushing technology have better stability and strength, and can improve the safety and durability of buildings.

[0003] The existing sand and gravel crushing equipment has the following defects: First, a single sand and gravel crushing device cannot be suitable for sand and gravel raw materials of different sizes, and it is necessary to equip a variety of crushing equipment of different specifications to meet the processing requirements of different raw materials. The material transfer process consumes manpower; Second, in the sand and gravel crushing process, a large amount of dust will be generated due to the crushing of raw materials and the mutual collision between particles; This dust will not only cause serious pollution to the production environment and affect the health of operators, but may also cause wear and corrosion to the equipment, shortening the service life of the equipment; Third, it is often impossible to directly obtain sand and gravel materials of the required particle size in a single crushing process; This means that after crushing, manual screening is required to screen out the particle size that meets the requirements, and the sand and gravel that do not meet the requirements after screening are crushed for the second time, which not only increases production costs, but also reduces production efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a sand and gravel crushing equipment used in civil engineering to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sand and gravel crushing equipment used in civil engineering, comprising a frame, a feed plate is fixedly connected to the outer wall of one side of the frame, a casing is arranged on one side of the feed plate, and the casing is fixedly connected to the frame, slide rails are fixedly connected to the outer walls of both sides of the casing, a dust cover is slidably connected to the slide rails, a centrifugal fan is arranged on one side of the frame, a dust suction pipe is fixedly connected to the centrifugal fan, and the dust suction pipe is sleeved on the dust cover.

[0006] As a further technical solution of the present invention, a positioning baffle is provided on one side of the dust cover, and the positioning baffle is provided on the slide rail. A fixing bolt is sleeved on the positioning baffle, and the other end of the fixing bolt is threadedly connected to the slide rail.

[0007] As a further technical solution of the present invention, a first rotating shaft is sleeved on the casing, an eccentric shaft is fixedly connected to the first rotating shaft, a movable jaw plate is arranged on one side of the eccentric shaft, a protrusion is arranged on the outer wall of one side of the movable jaw plate at the position corresponding to the eccentric shaft, a fixed jaw plate is arranged on one side of the movable jaw plate, and the fixed jaw plate is fixedly connected to the inner wall of the casing.

[0008] As a further technical solution of the present invention, a first motor is fixedly connected to an outer wall of one side of the casing, a driving wheel is fixedly connected to the output end of the first motor, a belt is sleeved on the driving wheel, a driven wheel is provided on one side of the driving wheel, and the belt is sleeved on the driven wheel, and the driven wheel is fixedly connected to the first rotating shaft.

[0009] As a further technical solution of the present invention, a fixing seat is fixedly connected to an inner wall of one side of the casing, a spring pull rod is fixedly connected to an outer wall of one side of the fixing seat, and the other end of the spring pull rod is fixedly connected to the movable jaw plate.

[0010] As a further technical solution of the present invention, a crushing plate is fixedly connected to an outer wall on one side of the movable jaw plate, a fixed shaft is fixedly connected to an outer wall on the other side of the movable jaw plate, and the fixed shaft is sleeved on the casing.

[0011] As a further technical solution of the present invention, the lower surface of the casing is fixedly connected with a counter-attack shell, a second rotating shaft is arranged in the counter-attack shell, and the second rotating shaft is sleeved on the counter-attack shell, the second rotating shaft is fixedly connected with a hammer disc, and the hammer disc is fixedly connected with a hammer head.

[0012] As a further technical solution of the present invention, a positioning shaft is sleeved on the hammer disc at a position corresponding to the hammer head, and the positioning shaft is sleeved on the hammer head.

[0013] As a further technical solution of the present invention, a sieve plate is provided at the bottom end of the impact shell, and the sieve plate is fixedly connected to the frame, a second bracket is provided at the bottom end of the sieve plate, and a second conveyor belt is fixedly connected to the second bracket, and a first bracket is provided on one side of the sieve plate, and a first conveyor belt is fixedly connected to the first bracket.

[0014] As a further technical solution of the present invention, a fixing plate is fixedly connected to an outer wall of one side of the counter-attack shell, a second motor is fixedly connected to an upper surface of the fixing plate, and the second rotating shaft is fixedly connected to an output end of the second motor.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is designed with a multi-stage crushing structure, which firstly performs preliminary crushing operations on large-volume sand and gravel raw materials through a jaw crushing structure, effectively decomposing them into smaller blocks, and then these small pieces of sand and gravel are further refined and crushed through a crushing hammer structure, ensuring that the equipment can flexibly respond to and adapt to sand and gravel raw materials of various sizes, and the dust generated by the equipment is removed through a dust suction structure, thereby significantly reducing the dust concentration in the working environment and ensuring the cleanliness and safety of the operating environment, and the dust cover is easy to open and close, which is convenient for users to inspect and maintain the crushing port, and a screening material circulation structure is designed, which can screen and transport sand and gravel according to demand, and send sand and gravel particles that fail to meet the engineering requirements back through a conveyor belt for secondary crushing, and this mechanism significantly improves the overall production efficiency and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of the A area in the middle;

[0018] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0019] Figure 4 It is a front view structural schematic diagram of the present invention;

[0020] Figure 5 It is a side view structural schematic diagram of the present invention;

[0021] Figure 6 It is a schematic diagram of the three-dimensional cutaway structure of the present invention;

[0022] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of area B in the middle.

[0023] In the figure: 1. frame; 2. feed plate; 3. first motor; 4. driving wheel; 5. belt; 6. driven wheel; 7. casing; 8. fixed jaw plate; 9. movable jaw plate; 10. fixed shaft; 11. crushing plate; 12. bump; 13. eccentric shaft; 14. first rotating shaft; 15. fixed seat; 16. spring pull rod; 17. dust cover; 18. slide rail; 19. positioning baffle; 20. fixing bolt; 21. dust suction pipe; 22. centrifugal fan; 23. impact shell; 24. second rotating shaft; 25. hammer disc; 26. hammer head; 27. positioning shaft; 28. sieve plate; 29. ​​first bracket; 30. first conveyor belt; 31. second bracket; 32. second conveyor belt; 33. fixed plate; 34. second motor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Please refer to the attached Figure 1 -Attached Figure 7An embodiment of the present invention is as follows: a sand and gravel crushing device used in civil engineering comprises a frame 1, a feed plate 2 is fixedly connected to an outer wall of one side of the frame 1, a housing 7 is arranged on one side of the feed plate 2, and the housing 7 is fixedly connected to the frame 1, a slide rail 18 is fixedly connected to the outer walls of both sides of the housing 7, a dust cover 17 is slidably connected to the slide rail 18, a centrifugal fan 22 is arranged on one side of the frame 1, a dust suction pipe 21 is fixedly connected to the centrifugal fan 22, and the dust suction pipe 21 is sleeved on the dust cover 17; a positioning baffle 19 is arranged on one side of the dust cover 17, and the positioning baffle 19 is arranged on the slide rail 18, and a fixing bolt 2 is sleeved on the positioning baffle 19 0, and the other end of the fixing bolt 20 is threadedly connected to the slide rail 18, and the positioning baffle 19 is used to fix the dust cover 17; the housing 7 is sleeved with a first rotating shaft 14, and the first rotating shaft 14 is fixedly connected to the eccentric shaft 13, and a movable jaw plate 9 is provided on one side of the eccentric shaft 13, and a protrusion 12 is provided on the outer wall of one side of the movable jaw plate 9 at a position corresponding to the eccentric shaft 13, and a fixed jaw plate 8 is provided on one side of the movable jaw plate 9, and the fixed jaw plate 8 is fixedly connected to the inner wall of the housing 7, and the movable jaw plate 9 and the fixed jaw plate 8 are used for extruding and crushing sand and stone raw materials; a first motor 3 is fixedly connected to the outer wall of one side of the housing 7, and a driving wheel 4 is fixedly connected to the output end of the first motor 3, and a Belt 5, a driven wheel 6 is provided on one side of the driving wheel 4, and the belt 5 is sleeved on the driven wheel 6, and the driven wheel 6 is fixedly connected to the first rotating shaft 14. The first motor 3, the driving wheel 4, the belt 5 and the driven wheel 6 are used to drive the movable jaw plate 9 to move; a fixing seat 15 is fixedly connected to the inner wall of one side of the casing 7, and a spring pull rod 16 is fixedly connected to the outer wall of one side of the fixing seat 15, and the other end of the spring pull rod 16 is fixedly connected to the movable jaw plate 9. The spring pull rod 16 is used to transmit power so that the movable jaw plate 9 can periodically approach and leave the fixed jaw plate 8, thereby forming an extrusion and splitting effect on the sand and stone raw materials; a crushing plate 11 is fixedly connected to the outer wall of one side of the movable jaw plate 9, A fixed shaft 10 is fixedly connected to the outer wall of the other side of the jaw plate 9, and the fixed shaft 10 is sleeved on the casing 7, and the fixed shaft 10 is used to fix the movable jaw plate 9; a counter-attack housing 23 is fixedly connected to the lower surface of the casing 7, a second rotating shaft 24 is arranged in the counter-attack housing 23, and the second rotating shaft 24 is sleeved on the counter-attack housing 23, a hammer disc 25 is fixedly connected to the second rotating shaft 24, and a hammer head 26 is fixedly connected to the hammer disc 25, and the hammer disc 25 is fixedly connected to the hammer head 26, and the hammer disc 25, the hammer head 26 and the counter-attack housing 23 are used to hit and impact sand and gravel for crushing; a positioning shaft 27 is sleeved at the position of the hammer disc 25 corresponding to the hammer head 26, and the positioning shaft 27 is sleeved on the hammer head 26, and the positioning shaft 27 is used to fix the hammer head 26;A sieve plate 28 is provided at the bottom end of the impact shell 23, and the sieve plate 28 is fixedly connected to the frame 1. A second bracket 31 is provided at the bottom end of the sieve plate 28, and a second conveyor belt 32 is fixedly connected to the second bracket 31. A first bracket 29 is provided on one side of the sieve plate 28, and a first conveyor belt 30 is fixedly connected to the first bracket 29. The sieve plate 28 is used to screen sand and gravel, the second conveyor belt 32 is used to convey qualified sand and gravel, and the first conveyor belt 30 is used to convey unqualified sand and gravel for secondary circulation crushing; a fixed plate 33 is fixedly connected to the outer wall of one side of the impact shell 23, and a second motor 34 is fixedly connected to the upper surface of the fixed plate 33, and the second rotating shaft 24 is fixedly connected to the output end of the second motor 34, and the second motor 34 is used to drive the second rotating shaft 24. ;

[0026] Working principle: When the present invention is used for crushing sand and gravel for civil engineering, firstly, large pieces of sand and gravel raw materials are fed into the casing 7 on the frame 1 through the feed plate 2, and the first motor 3 drives the driving wheel 4 to rotate, and the driving wheel 4 drives the driven wheel 6 to rotate through the belt 5, and the driven wheel 6 further drives the eccentric shaft 13 on the first rotating shaft 14 to rotate, and the movable jaw plate 9 is always in contact with the eccentric shaft 13 through the protrusion 12 under the pulling force of the spring pull rod 16 on the fixed seat 15, and the eccentric shaft 13 rotates, driving the movable jaw plate 9 to reciprocate around the fixed shaft 10 as the center, and the large pieces of sand and gravel raw materials are crushed by the vibration and extrusion of the fixed jaw plate 8 on one side through the crushing plate 11 thereon, and the dust generated in the process is isolated by the dust cover 17, and is sucked out by the suction action of the centrifugal fan 22 through the dust suction pipe 21 for subsequent treatment, and the fixing bolts 20 can be removed to remove the positioning baffle 19 and slide the dust cover 17 to both sides along the slide rail 18 The dust cover 17 is opened to inspect and maintain the crushing port. The sand and gravel after preliminary crushing fall into the impact shell 23. The second motor 34 on the fixed plate 33 drives the second rotating shaft 24 to rotate, and then drives the hammer head 26 on the hammer plate 25 to rotate at high speed, and the sand and gravel sent into the impact shell 23 is impacted at high speed to crush it. The crushed sand and gravel are thrown to the impact shell 23 again, and are impacted again to be further crushed. This repeated action of impact and impact gradually breaks the raw materials into sand and gravel of the particle size required for the project. The fallen sand and gravel fall onto the inclined screen plate 28, and are screened under the action of gravity and the vibration generated by the operation of the equipment. Qualified sand and gravel fall onto the second conveyor belt 32 on the second bracket 31 and are sent out, and unqualified sand and gravel fall onto the first conveyor belt 30 on the first bracket 29 for collection, and then undergo secondary circulation crushing; wherein the positioning shaft 27 is used to fix the hammer head 26 on the hammer plate 25.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A sand and gravel crushing device for civil engineering, comprising a frame (1), characterized in that: A feed plate (2) is fixedly connected to an outer wall of one side of the frame (1); a housing (7) is provided on one side of the feed plate (2), and the housing (7) is fixedly connected to the frame (1); slide rails (18) are fixedly connected to the outer walls of both sides of the housing (7); a dust cover (17) is slidably connected to the slide rails (18); a centrifugal fan (22) is provided on one side of the frame (1); a dust suction pipe (21) is fixedly connected to the centrifugal fan (22), and the dust suction pipe (21) is sleeved on the dust cover (17).

2. The sand and gravel crushing equipment used in civil engineering according to claim 1, characterized in that: A positioning baffle (19) is provided on one side of the dust cover (17), and the positioning baffle (19) is arranged on the slide rail (18). A fixing bolt (20) is sleeved on the positioning baffle (19), and the other end of the fixing bolt (20) is threadedly connected to the slide rail (18).

3. The sand and gravel crushing equipment according to claim 1, characterized in that: The casing (7) is sleeved with a first rotating shaft (14), an eccentric shaft (13) is fixedly connected to the first rotating shaft (14), a movable jaw plate (9) is arranged on one side of the eccentric shaft (13), a protrusion (12) is arranged on an outer wall of one side of the movable jaw plate (9) at a position corresponding to the eccentric shaft (13), a fixed jaw plate (8) is arranged on one side of the movable jaw plate (9), and the fixed jaw plate (8) is fixedly connected to the inner wall of the casing (7).

4. The sand and gravel crushing equipment according to claim 1, characterized in that: A first motor (3) is fixedly connected to an outer wall of one side of the housing (7); a driving wheel (4) is fixedly connected to the output end of the first motor (3); a belt (5) is sleeved on the driving wheel (4); a driven wheel (6) is provided on one side of the driving wheel (4); the belt (5) is sleeved on the driven wheel (6); and the driven wheel (6) is fixedly connected to the first rotating shaft (14).

5. The sand and gravel crushing equipment according to claim 1, characterized in that: A fixing seat (15) is fixedly connected to an inner wall of one side of the casing (7), a spring pull rod (16) is fixedly connected to an outer wall of one side of the fixing seat (15), and the other end of the spring pull rod (16) is fixedly connected to the movable jaw plate (9).

6. The sand and gravel crushing equipment according to claim 3, characterized in that: A crushing plate (11) is fixedly connected to an outer wall on one side of the movable jaw plate (9), and a fixed shaft (10) is fixedly connected to an outer wall on the other side of the movable jaw plate (9), and the fixed shaft (10) is sleeved on the casing (7).

7. The sand and stone crushing equipment according to claim 1, characterized in that: The lower surface of the housing (7) is fixedly connected to a counter-attack housing (23), a second rotating shaft (24) is arranged inside the counter-attack housing (23), and the second rotating shaft (24) is sleeved on the counter-attack housing (23), a hammer disc (25) is fixedly connected to the second rotating shaft (24), and a hammer head (26) is fixedly connected to the hammer disc (25).

8. The sand and stone crushing equipment according to claim 7, characterized in that: A positioning shaft (27) is sleeved on the hammer disc (25) at a position corresponding to the hammer head (26), and the positioning shaft (27) is sleeved on the hammer head (26).

9. The sand and stone crushing equipment according to claim 7, characterized in that: A sieve plate (28) is provided at the bottom end of the impact shell (23), and the sieve plate (28) is fixedly connected to the frame (1); a second bracket (31) is provided at the bottom end of the sieve plate (28), and a second conveyor belt (32) is fixedly connected to the second bracket (31); a first bracket (29) is provided on one side of the sieve plate (28), and a first conveyor belt (30) is fixedly connected to the first bracket (29).

10. The sand and stone crushing equipment according to claim 7, characterized in that: A fixing plate (33) is fixedly connected to an outer wall of one side of the counter-attack shell (23), a second motor (34) is fixedly connected to an upper surface of the fixing plate (33), and the second rotating shaft (24) is fixedly connected to an output end of the second motor (34).

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