Crushing groove body suitable for soft-bottom crossheading roadway, reversed loader and crusher system

Abstract

The invention discloses a crushing groove body suitable for a soft-bottom crossheading roadway, a reversed loader and a crusher system.The crushing groove body comprises a base connected with the soft-bottom crossheading roadway, one end of the bottom of the base is of a streamline inclined face structure, and a thickened chain pressing plate is detachably installed above the end, of the streamline inclined face structure, of the base; and a thickened middle plate is detachably mounted at one end, far away from the streamline inclined plane structure, of the base. According to the brand-new crushing groove body, one end of the base is designed to be of the streamline inclined face structure, so that the resistance of the contact face between the crushing groove body and a soft-bottom gate roadway during pushing is reduced, and the crushing groove body is prevented from being pricked into the soft-bottom gate roadway; meanwhile, the positions, prone to abrasion, of the chain pressing plates and the middle plates are designed to be detachable thickened chain pressing plates and detachable thickened middle plates, the thickening design is beneficial to prolonging the service life of the single thickened chain pressing plate and the single thickened middle plate, the detachable design facilitates replacement after the thickened chain pressing plates or the thickened middle plates are damaged, and equipment maintenance is facilitated.

Description

Technical Field

[0001] This invention belongs to the technical field of crushing equipment, specifically relating to a crushing trough, transfer machine, and crushing system suitable for soft-bottom roadways. Background Technology

[0002] In coal mining, the crushing system consists of two parts: the roadway scraper conveyor and the crusher. The crusher is generally installed in the middle of the landing section of the roadway scraper conveyor. The roadway scraper conveyor and the crusher usually work together to crush and transport large pieces of coal and gangue, so that the large pieces of coal and gangue are crushed by the crusher and then transferred to the coal transportation system for transportation, preventing blockage of the coal transportation system.

[0003] Currently, existing crusher systems such as Figure 1 As shown, the chute scraper conveyor includes an input chute 3, an output chute 4, an inclined chute 5, and a crushing trough 1 located in the middle of the landing section. A crusher 2 is installed inside the crushing trough 1 of the conveyor. The structure of the crushing trough 1 is as follows: Figure 2 As shown, the system includes a right-angled bottom plate 6 connecting to the roadway, a middle plate 7 above the right-angled bottom plate 6, and chain plates 8 on both sides of the middle plate 7. The right-angled bottom plate 6, the middle plate 7, and the chain plates 8 are welded together with channel steel to form a robust self-supporting bridge body, enabling smooth material transport. When this crusher system operates in the roadway, due to the complex and variable conditions of the roadway, especially under "soft bottom" conditions, the right-angled bottom plate 6 of the crusher system's base, i.e., the crushing trough 1, is prone to embedding into the soft roadway when pushed by the heavy scraper conveyor, causing huge pushing resistance, difficulty in moving the equipment, and even damage to the roadway. Secondly, the crusher's hammers, under high-speed impact, are prone to severe wear on the middle plate 7 and chain plates 8 of the crushing trough 1 below. Once the integral structure of the crushing trough 1, welded with channel steel, is worn, the replacement cost is high and the downtime is long, seriously affecting the mining efficiency of the coal mine.

[0004] Therefore, the coal mining industry urgently needs a crusher system that can adapt to soft-bottom roadways and whose middle plate and chain clamping plate are easy to replace, in order to ensure the safety of the working face and the efficient mining of coal. Summary of the Invention

[0005] The purpose of this invention is to provide a crushing trough, transfer machine, and crushing system suitable for soft-bottom roadways, which solves the problems of existing crushing troughs having bottom plates that easily penetrate soft-bottom roadways and their middle plates and chain plates that are easily worn and inconvenient to replace.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a crushing trough suitable for soft bottom roadways, including a base at the junction with the soft bottom roadway, one end of the bottom of the base having a streamlined inclined structure, a thickened pressure chain plate being detachably installed on the base above the streamlined inclined structure, and a thickened middle plate being detachably installed on the base at the end away from the streamlined inclined structure.

[0007] The beneficial effects of this invention are as follows: Compared with the prior art, this invention provides a novel crushing trough. This crushing trough has a streamlined inclined structure at one end of its base to reduce the resistance between the crushing trough and the soft-bottom roadway during movement, thus preventing the crushing trough from piercing the soft-bottom roadway. At the same time, the wear-prone positions of the chain pressure plate and the middle plate are designed as detachable thickened chain pressure plates and detachable thickened middle plates. The thickening design helps to extend the service life of a single thickened chain pressure plate and a single thickened middle plate, and the detachable design facilitates replacement after the thickened chain pressure plate or the thickened middle plate is damaged, which is convenient for equipment maintenance.

[0008] The invention is further characterized in that: Furthermore, the base has a U-shaped cross-section and a bow-shaped bottom plate.

[0009] Furthermore, the base is provided with connecting lugs on both sides at the end away from the bow-shaped bottom plate.

[0010] Furthermore, a thickened middle plate is installed between the connecting ear plates on both sides of the base via a detachable structure.

[0011] Furthermore, a thickened pressure chain plate is installed above one end of the bow-shaped bottom plate of the base via a detachable structure.

[0012] Furthermore, the detachable structure can be any one of a high-strength bolt, a lock nut, or a thread-locking compound.

[0013] Furthermore, transition chamfers are provided at the joints of the thickened middle plate and the thickened pressure chain plate.

[0014] Furthermore, the base is a welded integral structure of channel steel.

[0015] To achieve the above objectives, another technical solution adopted by the present invention is: a transfer machine suitable for soft-bottom roadways, comprising the above-mentioned crushing trough, as well as an input trough, an output trough, and an inclined trough, wherein the crushing trough is disposed between the input trough and the output trough, and the inclined trough is disposed on one side of the output trough.

[0016] The beneficial effects of this invention are as follows: Compared with the prior art, this invention provides an improved transfer machine suitable for soft-bottom roadways. The crushing trough of this transfer machine is designed with a streamlined inclined structure for the base to be suitable for soft-bottom roadways. The design of the chain plate and the middle plate, which are prone to wear, is based on the design concept of "local thickening" and "local detachability". This makes the crushing trough of the transfer machine of this invention standardized and modularized, thereby extending the service life of the transfer machine and simplifying the maintenance process.

[0017] The invention is further characterized in that: Furthermore, the base has a U-shaped cross-section and a bow-shaped bottom plate.

[0018] Furthermore, the base is provided with connecting lugs on both sides at the end away from the bow-shaped bottom plate.

[0019] Furthermore, a thickened middle plate is installed between the connecting ear plates on both sides of the base via a detachable structure.

[0020] Furthermore, a thickened pressure chain plate is installed above one end of the bow-shaped bottom plate of the base via a detachable structure.

[0021] Furthermore, the detachable structure can be any one of a high-strength bolt, a lock nut, or a thread-locking compound.

[0022] Furthermore, transition chamfers are provided at the joints of the thickened middle plate and the thickened pressure chain plate.

[0023] Furthermore, the base is a welded integral structure of channel steel.

[0024] To achieve the above objectives, another technical solution adopted by the present invention is: a crusher system suitable for soft-bottom roadways, including the above-mentioned transfer machine and crusher body, wherein the crusher body is disposed in the crushing trough of the transfer machine.

[0025] The beneficial effects of this invention are as follows: The crusher system designed in this invention optimizes the crusher trough based on the existing crusher system, so that the base of the crusher trough of the crusher system has a streamlined inclined structure, so as to improve the traditional right-angle front end "plowing" into the soft bottom roadway; at the same time, the middle plate and the chain pressure plate in the easily worn parts of the crusher system are designed with "local thickening" and "local detachability", so that the crusher system of this invention is easy to maintain and extends its service life.

[0026] The invention is further characterized in that: Furthermore, the base has a U-shaped cross-section and a bow-shaped bottom plate.

[0027] Furthermore, the base is provided with connecting lugs on both sides at the end away from the bow-shaped bottom plate.

[0028] Furthermore, a thickened middle plate is installed between the connecting ear plates on both sides of the base via a detachable structure.

[0029] Furthermore, a thickened pressure chain plate is installed above one end of the bow-shaped bottom plate of the base via a detachable structure.

[0030] Furthermore, the detachable structure can be any one of a high-strength bolt, a lock nut, or a thread-locking compound.

[0031] Furthermore, transition chamfers are provided at the joints of the thickened middle plate and the thickened pressure chain plate.

[0032] Furthermore, the base is a welded integral structure of channel steel. Attached Figure Description

[0033] Figure 1 This is a structural diagram of an existing crusher system; Figure 2 This is a schematic diagram of the structure of the crushing trough in an existing crusher system; Figure 3 This is a schematic diagram of the structure of the crushing trough for soft-bottom roadways according to the present invention; Figure 4 yes Figure 3 The main view; Figure 5 yes Figure 3 Side view; Figure 6 yes Figure 3 Top view; Figure 7 This is a schematic diagram of the crusher system of the present invention applicable to soft-bottom roadways.

[0034] In the diagram, 1. Crushing trough, 2. Crusher, 3. Input trough, 4. Output trough, 5. Inclined trough, 6. Bottom plate, 7. Middle plate, 8. Chain press plate, 9. Bow-shaped bottom plate, 10. Thickened chain press plate, 11. Thickened middle plate, 12. High-strength bolt, 13. Connecting lug plate. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0036] The crushing trough, transfer conveyor, and crushing system provided by this invention are optimized designs for crushing systems used in coal mining. The crushing system includes a crusher body and a transfer conveyor for the roadway. The crusher body is installed in the crushing trough of the transfer conveyor. The crusher body is mainly responsible for crushing large pieces of coal and gangue in the transfer conveyor, while the transfer conveyor is mainly responsible for transporting the coal and gangue. In the prior art, the crushing system operates within the roadway, where the environment is complex and variable. When the roadway has a "soft bottom," the right-angled base of the crushing trough, pushed by the transfer conveyor, will "plow" into the soft-bottomed roadway, increasing the pushing resistance of the crushing system and causing difficulties in movement. It can also damage the soft-bottomed roadway. Furthermore, the middle plate and the chain plate at the beginning of the arc section below the crusher hammer are easily worn under the high-speed impact of the crusher hammer, and the integral design makes replacement inconvenient. These problems seriously affect the service life of the crushing system and the efficiency of coal mining.

[0037] To address the aforementioned issues, this application provides a novel crushing trough suitable for soft-bottom roadways. The main design concept is as follows: First, a bow-shaped crushing trough is designed to reduce resistance and facilitate smooth movement of the crusher system during transport, effectively preventing the crushing trough from embedding into the soft roadway floor. Second, the middle plate below the crusher hammer and the chain guard plate at the beginning of the arc section are designed as replaceable, segmented, thickened structures, increasing the wear resistance of the middle plate and chain guard plate. The replaceable structure also improves the repairability of the crushing trough, effectively solving the problem of replacing the middle plate and chain guard plate after wear.

[0038] Based on the above concept, the present invention provides the following embodiments for illustration: Crushing troughs suitable for soft-bottom roadways, such as... Figure 3As shown, the base includes a foundation at the junction with the soft-bottom roadway. One end of the base has a streamlined inclined structure. When the base encounters obstacles such as loose coal or broken gangue during its movement, the streamlined inclined structure will lift them and guide them to the top or sides of the crushing trough, reducing the resistance to the crushing trough's movement and preventing the base from "plowing" into the soft-bottom roadway, thus avoiding damage to the roadway. A thickened pressure chain plate 10 is detachably installed above the streamlined inclined structure at one end of the base. The base is further away from the streamlined inclined structure at the other end. A thickened middle plate 11 is detachably installed at one end. In this embodiment, the thickened pressure chain plate 10 and the thickened middle plate 11 are designed at the wear-prone position of the crushing trough. The wear-prone position refers to the position of the middle plate and the arc-shaped pressure chain plate below the crushing hammer. The middle plate and the arc-shaped pressure chain plate below the crushing hammer are separated from the integral crushing trough and designed as standardized and modular wear-resistant blocks. The purpose of partial replacement is achieved by "partial thickening" and "partial detachability", which extends the service life of the crushing trough of the present invention and facilitates maintenance and replacement.

[0039] In one embodiment, such as Figure 5 As shown, the base has a U-shaped cross-section and a bow-shaped bottom plate 9. In this embodiment, the base is a welded steel structure with a U-shaped cross-section to withstand the impact of coal and gangue, as well as the vibration of the equipment. The bow-shaped bottom plate 9, i.e., a streamlined inclined structure, optimizes the traditional right-angle bottom plate of the crushing trough and the soft-bottom roadway into a bow-shaped bottom plate 9, which is designed to ensure sufficient guiding height without losing strength due to excessive angle. This bow-shaped bottom plate 9 design greatly changes the interaction between the crushing trough and the soft-bottom roadway during the movement of the crushing trough. When the crushing trough moves, the bow-shaped bottom plate 9 will not "plow" directly into the soft-bottom roadway like the traditional right-angle bottom plate, but will "slide" along the surface of the soft-bottom roadway. When it encounters obstacles such as floating coal or broken gangue, it will be lifted and guided to the top or sides of the crushing trough under the inclined surface of the bow-shaped bottom plate 9, instead of accumulating in front of the equipment and forming huge resistance, effectively avoiding damage to the soft-bottom roadway.

[0040] In one embodiment, such as Figure 5 and Figure 6As shown, the base has connecting lugs 13 on both sides at the end away from the bow-shaped bottom plate 9. The main function of the connecting lugs 13 is to support a detachable thickened middle plate 11, which is located below the easily worn breaker hammer. There are two connecting lugs 13, which are respectively arranged along the groove direction of the base. The thickened middle plate 11 is connected between the two connecting lugs 13 through a detachable structure. The thickness of a conventional middle plate is 50mm, and the length of the middle plate in the easily worn area, i.e., below the breaker hammer, is 1200mm. In this embodiment, the thickness of the thickened middle plate 11 is 80mm, and the length of the thickened middle plate 11 is the easily worn area, i.e., 1200mm.

[0041] In one embodiment, such as Figure 4 and Figure 6 As shown, a thickened pressure chain plate 10 is installed above one end of the bow-shaped bottom plate 9 of the base via a detachable structure. The conventional thickness of the pressure chain plate at the arc section is 60mm, and the wear-prone area, i.e., the length of the pressure chain plate at the arc section, is 3000mm. In this embodiment, the thickened pressure chain plate 10 is designed at the wear-prone arc section position, i.e., the length of the thickened pressure chain plate 10 is 3000mm. The thickened pressure chain plate 10 is an irregular wear-resistant cast pressure chain plate, with the thickness gradually transitioning from 60mm to 135mm. The middle plate is thickened in the area where the impact with the breaker hammer and the material is most severe, namely below the working trajectory of the breaker hammer. The pressure plate is also thickened in the arc section. This targeted thickening maximizes the service life of the wear-resistant areas. The pressure plate and middle plate in the easily worn parts are designed with a detachable structure, so that the thickened pressure plate and middle plate can be installed on the base of the crushing trough of this application through the detachable structure. This extends the service life of the crushing trough of this application, and at the same time facilitates maintenance and replacement, making it more widely applicable.

[0042] In one embodiment, such as Figures 4 to 6 As shown, the detachable structure is a high-strength bolt 12. The thickened middle plate 11 and the thickened pressure chain plate 10 are detachably mounted on the base of the crushing trough of this application via the high-strength bolt 12. In this embodiment, the detachable structure is designed as a high-strength bolt 12. Compared with ordinary bolts, high-strength bolts have higher material strength and greater preload, resulting in a more stable connection. This facilitates the adaptation to the high-speed impact of coal and gangue, as well as the strong vibration of the equipment, making the crushing trough of this application more stable and reliable. In other embodiments, the detachable structure can also be a lock nut or thread-locking agent to ensure that the thickened pressure chain plate 10 and the thickened middle plate 11 do not loosen under the high-speed impact of coal and gangue and the strong vibration of the equipment.

[0043] In one embodiment, a transition chamfer is provided at the joint between the thickened middle plate 11 and the thickened pressure plate 10. In this embodiment, by processing the joint into a transition chamfer, the smooth operation of the scraper chain of the crusher system is ensured, and scraping and jamming are prevented.

[0044] Based on the above embodiments, the present invention provides another technical solution applicable to transfer machines in soft-bottom roadways, such as... Figure 7 As shown, the invention includes a crushing trough suitable for soft-bottom roadways, as described in the above embodiments, along with an input trough, an output trough, and an inclined trough. The crushing trough is positioned between the input and output troughs, and the inclined trough is positioned on one side of the output trough. In this embodiment, the invention improves upon existing transfer machines by designing the crushing trough for soft-bottom roadways in a bow-shaped configuration. This allows the crushing trough to "slide" as it moves with the transfer machine. When encountering coal or gangue, the bow-shaped base lifts the material and guides it to the top or sides of the transfer machine, reducing resistance and ensuring smooth movement, thus preventing damage to the soft-bottom roadway. Simultaneously, the easily worn chain plates and middle plates are separated from the integrated base through a detachable "partially thickened" and "partially detachable" design, making them modular and standardized. This facilitates the replacement of thickened chain plates and middle plates, simplifying maintenance and extending the service life of the transfer machine for soft-bottom roadways, thus broadening its application prospects.

[0045] Based on the above embodiments, the present invention provides another technical solution applicable to crusher systems in soft-bottom roadways, such as... Figure 7 As shown, the invention includes a transfer conveyor and a crusher body suitable for soft-bottom roadways, as described in the above embodiment. The crusher body is disposed within the crushing trough of the transfer conveyor. In this embodiment, by improving the structure of the transfer conveyor to adapt to the working environment of soft-bottom roadways, the crusher system of the present invention is more suitable for coal mining operations than existing crusher systems, especially for coal mining in soft-bottom roadways. The crushing trough of the bow-shaped base in the crusher system of the present invention can adapt well to soft-bottom roadways. Its bow-shaped inclined structure can lift and guide the material in the pushing direction of the crusher system to both sides, thereby reducing the pushing resistance and preventing the base of the crusher system from digging into the soft bottom of the roadway and damaging it. Secondly, the standardized and modular design of the thickened pressure chain plate and thickened middle plate of the crusher system of the present invention gives it a longer service life and repairability compared to the integrated design in the prior art, making the crusher system of the present application have a wider range of application prospects in coal mines.

Claims

1. A crushing trough suitable for soft-bottom roadways, characterized in that, The base includes a base that connects to the soft bottom roadway. One end of the base has a streamlined inclined structure. A thickened pressure chain plate (10) is detachably installed on the base above the streamlined inclined structure. A thickened middle plate (11) is detachably installed on the base at the end away from the streamlined inclined structure.

2. The crushing tank according to claim 1, characterized in that, The base has a U-shaped cross-section and a bow-shaped bottom plate (9).

3. The crushing tank according to claim 2, characterized in that, The base is provided with connecting lugs (13) on both sides of the end away from the bow-shaped bottom plate (9).

4. The crushing tank according to claim 3, characterized in that, The base has a thickened middle plate (11) installed between the connecting ear plates (13) on both sides via a detachable structure.

5. The crushing tank according to claim 2, characterized in that, The base is provided with the thickened pressure chain plate (10) above one end of the bow-shaped bottom plate (9) via a detachable structure.

6. The crushing tank according to claim 4 or 5, characterized in that, The detachable structure is any one of a high-strength bolt (12), a lock nut, or a thread-locking agent.

7. The crushing tank according to claim 1, characterized in that, Both the thickened middle plate (11) and the thickened pressure chain plate (10) have transition chamfers at their joints.

8. The crushing tank according to claim 2, characterized in that, The base is a welded integral structure of channel steel.

9. A transfer machine suitable for soft-bottom roadways, characterized in that, It includes the crushing tank body as described in any one of claims 1 to 8, as well as the input tank, the output tank and the ramp tank, wherein the crushing tank body is disposed between the input tank and the output tank, and the ramp tank is disposed on one side of the output tank.

10. A crushing system suitable for soft-bottom roadways, characterized in that, It includes the transfer machine and the crusher body as described in claim 9 above, wherein the crusher body is disposed in the crushing trough of the transfer machine.

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