Gravel crushing device for constructional engineering

Abstract

The utility model relates to the technical field of gravel crushing, in particular to a gravel crushing device for constructional engineering. The crusher comprises a case, a crushing assembly and an impacting assembly. Supports are arranged on the two sides of the machine box, a feeding port is formed in the upper end, and a discharging port is formed in the lower end. And the crushing assembly is arranged in the machine box and is used for crushing the gravel. And the impact assembly is arranged at the upper end of the feeding opening and impacts large-size sand and stones, so that the sand and stones are helped to be crushed. The impact assembly comprises an impact piece for impacting the gravel; the swinging piece pushes the impact piece to swing back and forth; and the lifting piece drives the impact piece and the swing piece to lift. The telescopic mechanism I is started to drive the rack to slide, so that the gear and the oscillating rod II are driven to rotate in a reciprocating manner, and the oscillating rod I and the pendulum bob are driven to lift. And then the pendulum bob falls down under the inertia effect, and the gravel can be knocked. And the plate hammer is assisted to enable the gravels to collide with the impact frame, so that the crushing speed of the large gravels is increased, and the crushing efficiency is improved.

Description

Technical Field

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

[0002] The sand and gravel crushing device is a device used to crush various materials such as stones, ores or construction waste into the required particle size. It includes an impact crusher, which is generally used for secondary and tertiary crushing of stones with low hardness and is widely used in the field of construction engineering.

[0003] A Chinese patent document with authorization announcement number CN217527659U proposes an impact crusher, including a box body, a rotating shaft is provided inside the box body, a plurality of plate hammers are fixedly provided on the outer wall surface of the rotating shaft, two lining plates are provided on one side of the rotating shaft, the outer wall of each lining plate is connected to the box body through a connecting assembly, support plates are provided on the front and rear sides of the box body, and a base is fixedly provided on the bottom of the support plate.

[0004] In the application, although the material is repeatedly crushed into fine particles by the high-speed rotation of the plate hammer, and the ring plate and the entire box body rotate between the two support plates to fully break up the material inside the box body, when larger sand and gravel enter the inside of the box body, the sand and gravel may be blocked above the plate hammer, making it difficult for the plate hammer to hit the sand and gravel, thereby making it difficult to crush the sand and gravel. Utility Model Content

[0005] In view of the problems existing in the background technology, a sand and gravel crushing device for construction engineering is proposed.

[0006] The utility model proposes a sand and gravel crushing device for construction engineering, comprising a chassis, a crushing assembly and an impact assembly. Brackets are arranged on both sides of the chassis, a feed inlet is opened at the upper end, and a discharge inlet is opened at the lower end. The crushing assembly is arranged in the chassis to crush the sand and gravel. The impact assembly is arranged at the upper end of the feed inlet to impact the larger sand and gravel, thereby helping to crush them. The impact assembly includes an impact member for impacting the sand and gravel; a swing member for driving the impact member to swing back and forth; and a lifting member for driving the impact member and the swing member to rise and fall.

[0007] Preferably, the crushing assembly includes a rotor rotatably connected to the inner wall of the chassis; a plurality of plate hammers are provided on the side wall of the rotor, and a driving mechanism is also connected to one end; a plurality of impact frames cooperating with the plate hammers are provided on the inner wall of the chassis.

[0008] Preferably, the impact member includes a protective box; the lower end of the protective box is open, and the top end is connected to a fixed plate; a swing rod is rotatably connected to the fixed plate; the lower end of the swing rod passes through the opening on the protective box, and is connected to a pendulum that cooperates with the impact frame, and a connecting column is also connected to one side wall of the swing rod.

[0009] Preferably, the end of the pendulum facing the inside of the chassis is tapered.

[0010] Preferably, the swinging member includes a slide rail arranged at the top of the protective box; the lower end of the slide rail is slidably connected to a rack; one end of the rack is connected to the telescopic end of a telescopic mechanism 1 arranged on the inner wall of the protective box, and the lower side is also meshed with a gear; one end of the gear is rotatably connected to the inner wall of the protective box, and the other end is connected to a swing rod 2; the swing rod 2 cooperates with the connecting column to push the swing rod 1 and the pendulum.

[0011] Preferably, through slots for the first swing rod and the second swing rod to pass through are symmetrically provided at both ends of the protection box.

[0012] Preferably, the lifting member includes a fixed box arranged at the top of the chassis; an entrance and exit are jointly opened between the lower end of the fixed box and the chassis, and a telescopic mechanism 2 is provided at the upper end of the fixed box; the telescopic end of the telescopic mechanism 2 is connected to the protective box, thereby driving the protective box in and out of the entrance and exit.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] The sand and gravel crushing device for construction projects starts the telescopic mechanism 1 to drive the rack to slide back and forth on the slide rail, thereby driving the gear and swing rod 2 to rotate back and forth, and then driving the swing rod 1 and the pendulum to rise. Then the pendulum falls under the action of inertia, which can knock the sand and gravel. It also assists the plate hammer to make the sand and gravel collide with the impact frame, thereby speeding up the crushing of large sand and gravel and improving the crushing efficiency. At the same time, it also reduces the situation where large sand and gravel block the feed port, preventing other sand and gravel from entering, thereby slowing down the progress of sand and gravel crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the impact assembly of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the impact member and the swing member of the utility model.

[0019] Figure numerals: 1. chassis; 2. bracket; 3. feed port; 4. discharge port; 5. crushing assembly; 51. rotor; 52. plate hammer; 53. driving mechanism; 54. impact frame; 6. impact assembly; 61. lifting member; 611. fixed box; 612. inlet and outlet; 613. telescopic mechanism 2; 62. impact member; 621. protective box; 622. through groove; 623. fixed plate; 624. swing rod 1; 625. connecting column; 626. pendulum; 63. swing member; 631. slide rail; 632. rack; 633. telescopic mechanism 1; 634. gear; 635. swing rod 2. DETAILED DESCRIPTION

[0020] like Figure 1-4 As shown, the utility model proposes a sand and gravel crushing device for construction engineering, including a chassis 1, a crushing assembly 5 and an impact assembly 6. Brackets 2 are provided on both sides of the chassis 1, a feed port 3 is provided at the upper end, and a discharge port 4 is provided at the lower end. The crushing assembly 5 is arranged in the chassis 1 to crush the sand and gravel. The impact assembly 6 is arranged at the upper end of the feed port 3 to impact the larger sand and gravel, thereby helping to crush them. The impact assembly 6 includes an impact member 62 for impacting the sand and gravel; a swinging member 63 for pushing the impact member 62 to swing back and forth; and a lifting member 61 for driving the impact member 62 and the swinging member 63 to rise and fall.

[0021] Further explanation, the crushing assembly 5 includes a rotor 51 rotatably connected to the inner wall of the case 1; a plurality of plate hammers 52 are provided on the side wall of the rotor 51, and a driving mechanism 53 is also connected to one end; the driving mechanism 53 is a motor; a plurality of impact racks 54 cooperating with the plate hammers 52 are provided on the inner wall of the case 1. The plate hammers 52 sequentially hit the sand and gravel on the plurality of impact racks 54 through the rotation of the rotor 51, so that the sand and gravel are crushed.

[0022] Further explanation, the impact member 62 includes a protection box 621; the protection box 621 can provide protection for its internal structure to prevent gravel from entering and damaging its internal structure; the lower end of the protection box 621 is open, and a fixed plate 623 is connected to the top; a swing rod 624 is rotatably connected to the fixed plate 623; the lower end of the swing rod 624 passes through the opening on the protection box 621, and is connected to a pendulum 626 that cooperates with the impact frame 54, and a connecting column 625 is also connected to the side wall of the swing rod 624. The end of the pendulum 626 facing the inside of the chassis 1 is conical. When large sand and gravel appear, it is difficult to beat the sand and gravel on the impact frame 54 only by the plate hammer 52, the pendulum 626 can be made to swing back and forth to knock the sand and gravel, and assist the plate hammer 52 to make the sand and gravel collide with the impact frame 54, thereby accelerating the crushing speed of large sand and gravel and improving the crushing efficiency. At the same time, it also reduces the possibility that large sand and gravel block the feed port 3, preventing other sand and gravel from entering, thereby slowing down the progress of sand and gravel crushing.

[0023] Further explanation, the swing member 63 includes a slide rail 631 arranged at the top of the protection box 621; the lower end of the slide rail 631 is slidably connected with a rack 632; one end of the rack 632 is connected to the telescopic end of a telescopic mechanism 1 633 arranged on the inner wall of the protection box 621, and the lower side is also meshed with a gear 634; the telescopic mechanism 1 633 is a cylinder; one end of the gear 634 is rotatably connected to the inner wall of the protection box 621, and the other end is connected to a swing rod 2 635; the swing rod 2 635 cooperates with the connecting column 625 to push the swing rod 1 624 and the pendulum 626. The swing rod 1 624 and the pendulum 626 are pushed by the swing rod 2 635 and the connecting column 625, so that the pendulum 626 is lifted up, and then the pendulum 626 falls under the action of inertia to knock the sand and gravel. When falling, the swing rate of the swing rod 2 635 is higher than the swing rate of the swing rod 1 624.

[0024] Further explanation, two ends of the protection box 621 are symmetrically provided with through slots 622 for the swing rod 1 624 and the swing rod 2 635 to pass through, so that the swing rod 1 624 and the fixing plate 623 will not collide with the protection box 621 when swinging.

[0025] Further explanation, the lifting member 61 includes a fixed box 611 arranged at the top of the chassis 1; an inlet and outlet 612 is provided between the lower end of the fixed box 611 and the chassis 1, and a telescopic mechanism 613 is provided at the upper end of the fixed box 611; the telescopic mechanism 613 is a cylinder; the telescopic end of the telescopic mechanism 613 is connected to the protective box 621, thereby driving the protective box 621 to enter and exit the inlet and outlet 612. When there is no large sand and gravel, the impact member 62 and the swing member 63 can be stored in the fixed box 611 to prevent the impact member 62 and the swing member 63 from blocking the feed port 3 and hindering the entry of sand and gravel.

[0026] The working principle of the utility model is as follows: when large sand and gravel appear, first start the telescopic mechanism 2 613 to drive the protective box 621 to descend, and then start the telescopic mechanism 1 633 to drive the rack 632 to slide back and forth on the slide rail 631, thereby driving the gear 634 and the swing rod 2 635 to rotate back and forth. When the swing rod 2 635 contacts the connecting column 625, it will drive the swing rod 1 624 and the pendulum 626 to rise. When it is lifted to a certain height, the swing rod 2 635 swings back, thereby releasing the restriction of the swing rod 2 635 on the connecting column 625, and then the pendulum 626 falls under the action of inertia to knock the sand and gravel. And assist the plate hammer 52 to make the sand and gravel collide with the impact frame 54, thereby accelerating the speed of crushing large sand and gravel and improving the crushing efficiency. At the same time, it also reduces the situation where large sand and gravel block the feed port 3, causing other sand and gravel to be unable to enter, thereby slowing down the progress of sand and gravel crushing.

[0027] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A sand and gravel crushing device for construction engineering, characterized in that: include A chassis (1); brackets (2) are arranged on both sides of the chassis (1); a feed inlet (3) is provided at the upper end, and a discharge outlet (4) is provided at the lower end; A crushing assembly (5) disposed in the chassis (1) and configured to crush sand and gravel; and an impact component (6) disposed at the upper end of the feed inlet (3) for impacting larger sand and gravel to help break them; The impact assembly (6) includes an impact member (62) for impacting sand and gravel; A swinging member (63) that drives the impact member (62) to swing back and forth; And a lifting member (61) driving the impact member (62) and the swing member (63) to rise and fall.

2. A sand and stone crushing device for construction engineering according to claim 1, characterized in that: The crushing assembly (5) comprises a rotor (51) rotatably connected to the inner wall of the casing (1); a plurality of plate hammers (52) are arranged on the side wall of the rotor (51), and a driving mechanism (53) is connected to one end; a plurality of impact racks (54) cooperating with the plate hammers (52) are arranged on the inner wall of the casing (1).

3. A sand and stone crushing device for construction engineering according to claim 2, characterized in that: The impact member (62) comprises a protection box (621); the lower end of the protection box (621) is open, and the top end is connected to a fixing plate (623); a swing rod (624) is rotatably connected to the fixing plate (623); the lower end of the swing rod (624) passes through the opening on the protection box (621), and is connected to a pendulum (626) that cooperates with the impact frame (54); and a connecting column (625) is also connected to the side wall of the swing rod (624).

4. A sand and stone crushing device for construction engineering according to claim 3, characterized in that: One end of the pendulum (626) facing the inside of the housing (1) is in a cone shape.

5. A sand and stone crushing device for construction engineering according to claim 3, characterized in that: The swing member (63) comprises a slide rail (631) arranged at the top of the protection box (621); the lower end of the slide rail (631) is slidably connected to a rack (632); one end of the rack (632) is connected to the telescopic end of a telescopic mechanism (633) arranged on the inner wall of the protection box (621), and the lower side is also meshedly connected to a gear (634); one end of the gear (634) is rotatably connected to the inner wall of the protection box (621), and the other end is connected to a swing rod (635); the swing rod (635) cooperates with the connecting column (625) to push the swing rod (624) and the pendulum (626).

6. A sand and stone crushing device for construction engineering according to claim 5, characterized in that: Through slots (622) for the first swing rod (624) and the second swing rod (635) to pass through are symmetrically formed at both ends of the protection box (621).

7. A sand and stone crushing device for construction engineering according to claim 5, characterized in that: The lifting member (61) comprises a fixed box (611) arranged at the top of the chassis (1); an inlet and outlet (612) is provided between the lower end of the fixed box (611) and the chassis (1); a second telescopic mechanism (613) is provided at the upper end of the fixed box (611); the telescopic end of the second telescopic mechanism (613) is connected to the protective box (621), thereby driving the protective box (621) to enter and exit the inlet and outlet (612).

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