Coarse mineral aggregate crushing device

Abstract

The utility model discloses a coarse mineral aggregate crushing device, which relates to the technical field of mineral aggregate crushing and comprises a rack, a mineral aggregate static clamping plate, a mineral aggregate movable clamping plate, a driving device and an elastic resetting component, the elastic reset assembly comprises a pull rod and a reset spring. A discharge port is formed between the lower ends of the fixed mineral aggregate clamping plate and the movable mineral aggregate clamping plate, a mineral aggregate sieve plate is obliquely arranged under the discharge port, a support is arranged under the mineral aggregate sieve plate, a sliding groove is formed in the support, a sliding block is arranged on the sliding groove in a matched mode, the upper end of the sliding block extends to the position above the sliding groove and is fixedly connected with the mineral aggregate sieve plate, and the sliding block is further fixedly connected with a protective cover covering the sliding groove. The mineral aggregate sieve plates are fixedly connected with pull rods; when the driving device drives the movable mineral aggregate clamping plate to move forwards, the pull rod moves forwards along with the movable mineral aggregate clamping plate to drive the mineral aggregate sieve plate to move forwards; when the reset spring of the elastic reset assembly drives the pull rod to reset and move backwards, the mineral aggregate sieve plate is driven to move backwards, and the screening action is achieved. The device can effectively screen the crushed mineral aggregate and improve the production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mineral crushing technology, and more specifically, to a coarse ore crushing device. Background Technology

[0002] In existing coarse ore crushing technologies, jaw crushers or other similar crushing equipment are typically used. However, existing technologies have the following problems: the crushed ore needs to be further screened to ensure that it reaches the required particle size; traditional screening processes usually require additional equipment, increasing production costs and operational complexity; in addition, problems such as screen plate clogging and low screening efficiency may occur during the screening process, affecting overall production efficiency and product quality. Utility Model Content

[0003] The present invention provides a coarse ore crushing device that can solve the above-mentioned problems.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] A coarse ore crushing device includes a frame on which a stationary ore clamping plate and a movable ore clamping plate are mounted. The frame also includes a drive device and an elastic reset assembly. The drive device drives the movable ore clamping plate to move toward the stationary ore clamping plate. The elastic reset assembly includes a pull rod and a reset spring. The pull rod is connected to the movable ore clamping plate, and the reset spring drives the pull rod to reset, causing the movable ore clamping plate to move away from the stationary ore clamping plate. A discharge port is formed between the lower ends of the stationary and movable ore clamping plates. A ore screen plate is inclinedly arranged directly below the discharge port, and a support is provided below the ore screen plate. A groove is formed on the support, and a slider is slidably fitted in the groove. The upper end of the slider extends out of the groove and is fixedly connected to the ore screen plate. A protective cover is also fixedly connected to the slider, covering the groove. The ore screen plate is fixedly connected to the pull rod.

[0006] Preferably, the ore screen plate is a rectangular structure with four edges: front, back, left, and right. The left, right, and back edges are all equipped with enclosures, and the front edge is its lowest point.

[0007] Preferably, the ore screen plate is fixedly connected to the tail end of the pull rod via a connecting assembly; the connecting assembly includes a connecting plate, a support rod detachably connected to the rear end of the connecting plate, and a nut welded to the support rod and threadedly connected to the pull rod, and the front end of the connecting plate is detachably connected to the surrounding plate at the rear edge of the ore screen plate.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] 1) Combining crushing and screening functions into one device reduces the number of equipment and floor space required, thereby lowering production costs;

[0010] 2) Dynamic screening is achieved by moving the ore screen plate back and forth, which effectively avoids screen plate blockage and improves screening efficiency.

[0011] 3) The screening and crushing actions are linked, eliminating the need for an additional power source, simplifying the operation process, and improving the degree of automation;

[0012] 4) The device has a compact structure and reasonable design, making it easy to install and maintain, thus reducing maintenance costs.

[0013] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, embodiments of this utility model are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural diagram of the coarse ore crushing device in the embodiment;

[0016] Figure 2 This is a cross-sectional view of the coarse ore crushing device in the embodiment;

[0017] Figure 3 This is a diagram showing the installation structure of the ore screen plate in the embodiment;

[0018] In the diagram: 1. Frame; 2. Support; 3. Protective cover; 4. Slider; 5. Moving clamp for ore; 6. Clamp mounting shaft; 7. Synchronous belt drive mechanism; 8. Return spring; 9. Connecting plate; 10. First limit plate; 11. Pull rod; 12. Eccentric shaft; 13. Push plate assembly; 14. Stationary clamp for ore; 15. Second limit plate; 16. Motor; 17. Ore screen plate; 18. Support rod; 19. Nut; 20. Slide groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0020] Please refer to Figure 1 , Figure 2 and Figure 3 This embodiment provides a coarse ore crushing device, including a frame 1, on which a stationary ore clamping plate 14 and a movable ore clamping plate 5 are mounted, and a driving device and an elastic reset assembly are provided. The driving device is used to drive the movable ore clamping plate 5 to move toward the stationary ore clamping plate 14. The elastic reset assembly includes a pull rod 11 and a reset spring 8, and the pull rod 11 is connected to the movable ore clamping plate 5.

[0021] A discharge port is formed between the lower ends of the stationary clamping plate 14 and the moving clamping plate 5. A sieve plate 17 is inclinedly arranged directly below the discharge port, and a support 2 is provided below the sieve plate 17. A sliding groove 20 is provided on the support 2, and a slider 4 is slidably fitted in the sliding groove 20. The upper end of the slider 4 extends outside the sliding groove 20 and is fixedly connected to the sieve plate 17. A protective cover 3 is also fixedly connected to the slider 4, and the protective cover 3 covers the sliding groove 20. The sieve plate 17 is fixedly connected to the pull rod 11.

[0022] The system utilizes a drive mechanism to move the ore clamping plate 5 forward, which in turn moves the pull rod 11 and the ore screen plate 17 forward synchronously. When the return spring 8 returns to its original position, the drive rod 11 moves backward, causing the ore screen plate 17 to move backward, thus creating a reciprocating screening motion. The forward and backward movement of the ore screen plate 17 is synchronized with the crushing action, eliminating the need for an additional power source and reducing energy consumption. The reciprocating motion of the screen plate effectively prevents screen hole clogging and improves screening efficiency. The screen plate is placed directly below the discharge port, integrating crushing and screening and reducing equipment space requirements.

[0023] In this embodiment, the ore screen plate 17 is a rectangular structure with four edges: front, back, left, and right. Each of its left, right, and back edges is fitted with a surrounding plate, and its front edge is its lowest point, forming an inclined guiding surface. The inclined screen plate guides unscreened coarse material to slide forward and downward, facilitating centralized collection or secondary crushing; the surrounding plates limit lateral splashing of the ore, reducing material loss and improving screening accuracy.

[0024] Specifically, such as Figure 2 and Figure 3 As shown, the tail end of the pull rod 11 is fixedly connected to the ore screen plate 17 via a connecting assembly. The connecting assembly includes a connecting plate 9, a support rod 18 detachably connected to the rear end of the connecting plate 9, and a nut 19 welded to the support rod 18 and threadedly connected to the pull rod 11. The front end of the connecting plate 9 is detachably connected to the rear edge of the ore screen plate 17. The detachable connecting assembly fixes the pull rod 11 to the rear edge of the ore screen plate 17, reducing maintenance difficulty.

[0025] In this embodiment, the upper end of the moving clamping plate 5 is rotatably mounted on the frame 1 via the clamping plate mounting shaft 6; the front end of the pull rod 11 is rotatably connected to the lower end of the moving clamping plate 5; the driving device includes a motor 16, an eccentric shaft 12 rotatably mounted on the frame 1, a synchronous belt transmission mechanism 7 that drives the eccentric shaft 12 and the motor 16, and a push plate assembly 13.

[0026] like Figure 2 As shown, the pusher plate assembly 13 has two sections, front and rear. The front section connects to the lower part of the moving clamp plate 5 near the top of the pull rod 11, and the rear section has a sleeve structure that fits onto the eccentric rotating shaft 12. This sleeve structure and the eccentric rotating shaft 12 are connected by a bearing. The front and rear sections are connected, and there is a gap as shown in the figure at the connection point. This gap is the eccentric movement gap of the rear section to prevent jamming. The frame 1 is equipped with a first limiting plate 10, and the pull rod 11 is equipped with a second limiting plate 15. The return spring 8 is sleeved on the pull rod 11, with its front end abutting against the first limiting plate 10 and its rear end abutting against the second limiting plate 15.

[0027] Among them, the eccentric rotating shaft 12 converts the rotational motion into reciprocating linear motion, thereby increasing the impact force of the moving clamp plate; the sleeve structure with bearings reduces the frictional loss between the eccentric rotating shaft 12 and the push plate, extending its service life; the synchronous belt drive ensures smooth power transmission and avoids jamming during the crushing process.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A coarse ore crushing device, comprising a frame (1), wherein a stationary ore clamping plate (14) and a movable ore clamping plate (5) are mounted on the frame (1), and the frame (1) is further provided with a driving device and an elastic reset assembly; the driving device is used to drive the movable ore clamping plate (5) to move toward the stationary ore clamping plate (14), and the elastic reset assembly comprises a pull rod (11) and a reset spring (8), wherein the pull rod (11) is connected to the movable ore clamping plate (5), and the reset spring (8) is used to drive the pull rod (11) to reset so that the movable ore clamping plate (5) moves away from the stationary ore clamping plate (14); a discharge port is formed between the lower ends of the stationary ore clamping plate (14) and the movable ore clamping plate (5), characterized in that, A mineral screen plate (17) is inclinedly arranged directly below the discharge port, and a support (2) is provided below the mineral screen plate (17); a sliding groove (20) is provided on the support (2), and a slider (4) is slidably fitted in the sliding groove (20). The upper end of the slider (4) extends outside the sliding groove (20) and is fixedly connected to the mineral screen plate (17). A protective cover (3) is also fixedly connected to the slider (4), and the protective cover (3) covers the sliding groove (20); the mineral screen plate (17) is fixedly connected to the pull rod (11).

2. The coarse ore crushing device according to claim 1, characterized in that, The ore screen plate (17) is a rectangular structure with four edges: front, back, left, and right. The left, right, and back edges are all equipped with surrounding plates, and the front edge is its lowest point.

3. The coarse ore crushing device according to claim 2, characterized in that, The ore screen plate (17) is fixedly connected to the tail end of the pull rod (11) by a connecting assembly; the connecting assembly includes a connecting plate (9), a support rod (18) detachably connected to the rear end of the connecting plate (9), and a nut (19) welded to the support rod (18) and threadedly connected to the pull rod (11); the front end of the connecting plate (9) is detachably connected to the surrounding plate of the rear edge of the ore screen plate (17).

4. The coarse ore crushing device according to claim 1, characterized in that, The upper end of the moving ore clamp (5) is rotatably mounted on the frame (1) via a clamp mounting shaft (6); the front end of the pull rod (11) is rotatably connected to the lower end of the moving ore clamp (5); the driving device includes a motor (16), an eccentric shaft (12) rotatably mounted on the frame (1), a synchronous belt drive mechanism (7) that drives the eccentric shaft (12) and the motor (16) to drive each other, and a push plate assembly (13). The front end of the push plate assembly (13) is connected to the lower part of the moving ore clamp (5) above the pull rod (11), and the rear end of the push plate assembly (13) is a sleeve structure sleeved on the eccentric shaft (12). The sleeve structure and the eccentric shaft (12) are connected by a bearing.

5. The coarse ore crushing device according to claim 1, characterized in that, The frame (1) is provided with a first limiting plate (10), the pull rod (11) is provided with a second limiting plate (15), the reset spring (8) is sleeved on the pull rod (11), and the front end abuts against the first limiting plate (10) and the rear end abuts against the second limiting plate (15).

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