Anti-impact car body for mine car

Abstract

The utility model discloses a kind of anti-impact car hopper for mine car, it is related to mine car hopper technical field, including car hopper body, detachably connected with inner liner in the car hopper body, the both sides inner wall of car hopper body is all set with storage groove, the both sides wall of car hopper body is all provided with buffer bracket, the buffer bracket can be slid into the storage groove, when the buffer bracket is completely removed from the storage groove, it can be turned over to the above of the inner liner;Several screening comb teeth are fixedly installed in the buffer bracket, the upper wall surface of screening comb teeth is set with guide inclination, the utility model is intercepted by screening comb teeth Large ore, cooperate rebound damper rod to relieve impact, avoid large ore from high place to fall and damage inner liner, then guide large ore after impact relief to inner liner by guide inclination, solve the existing mine car hopper without loading buffering device, large ore is relatively large to the impact inside car hopper, cause abrasion is more serious, lead to the problem of short service life of car hopper.

Description

Technical Field

[0001] This utility model relates to the field of mining car bucket technology, specifically to an anti-impact mining car bucket. Background Technology

[0002] Tipper mine cars are core equipment in mine transportation, specifically designed for the transfer of bulk materials such as ore and slag. They mainly consist of a frame, a tipper car body, wheelsets, and an unloading mechanism. Made of high-strength steel, they are wear-resistant and impact-resistant, making them suitable for harsh mining conditions. During operation, they are towed to a designated location via rails or traction equipment. The unloading mechanism, driven manually, hydraulically, or pneumatically, causes the car body to tip over, completing the automatic unloading process quickly and thoroughly. With their strong load-bearing capacity, simple structure, and convenient operation, they are widely used in underground roadways and open-pit mines, significantly improving the efficiency of bulk material transportation and unloading. For example, utility model patent CN116811935B discloses an ore conveying device, including: an I-shaped track and a hopper that rolls on the track. The bottom plate of the hopper has a discharge hole, and the bottom of the hopper has two opposing baffles. The direction in which the baffles open is perpendicular to the side of the track. Rollers are provided on the outer sides of the baffles. When the rollers contact the inner wall of the track, the inner walls of the two baffles fit together. The discharge hole can be automatically opened and closed, which not only realizes automatic discharge but also has a simple overall structure and effectively improves the operational stability of the hopper. However, the hopper of this ore conveying device lacks a loading buffer, and large pieces of ore have a greater impact on the inside of the hopper, causing more severe wear and resulting in a shorter service life. Furthermore, this type of hopper does not have a replaceable liner, so once the inner wall is damaged, the entire hopper structure needs to be replaced, resulting in waste. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an anti-impact truck bucket for mining cars. It solves the technical problems of existing devices lacking a loading buffer device, resulting in significant impact from large pieces of ore on the inside of the bucket, causing severe wear and a short service life. Furthermore, these buckets lack replaceable linings, requiring the entire bucket structure to be replaced once the inner wall is damaged, leading to waste.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an anti-impact mine car bucket, comprising a bucket body, a liner detachably connected to the bucket body, storage slots on both sides of the inner wall of the bucket body, and buffer frames on both sides of the bucket body, the buffer frames being slidable into the storage slots, and flipping over to be above the liner when completely removed from the storage slots; a plurality of screening combs are fixedly installed inside the buffer frames, the upper wall of the screening combs being provided with a guide angle, and support frames are fixedly installed on both sides of the inner wall of the liner, with a plurality of rebound damping rods fixedly installed on the upper wall of the support frames.

[0005] Preferably, a slide rail is fixedly installed in the storage slot, and sliding rods that are adapted to slide along the slide rail are fixedly installed at both ends of the buffer frame, with handles fixedly installed on the outer wall of the sliding rods.

[0006] Preferably, a plurality of guide blocks are fixedly installed at intervals on the upper wall edge of the truck bed body, and a load-bearing frame is fixedly installed on the upper wall edge of the inner lining, wherein the load-bearing frame has guide holes that correspond to and are inserted into the guide blocks.

[0007] Preferably, the outer wall of the truck body is provided with a number of stepped threaded holes at intervals on both sides and the bottom. The outer wall of the inner liner is provided with a number of pin holes corresponding to the stepped threaded holes. The small end of the stepped threaded hole is internally threaded with a stepped threaded pin. The stepped threaded pin passes through the stepped threaded hole and is inserted and fixed in the pin hole.

[0008] Preferably, the large end of the stepped threaded hole is threaded with a limiting cap to prevent the stepped threaded pin from loosening and disengaging, and the inner wall of the limiting cap abuts against the end of the stepped threaded pin.

[0009] Preferably, the internal thread at the large end of the stepped threaded hole has the opposite rotation direction to the internal thread at the small end.

[0010] Preferably, the inner wall corners of the lining are provided with clean chamfers.

[0011] Beneficial effects This utility model provides an impact-resistant car bucket for mining cars, which has the following beneficial effects: Large pieces of ore are intercepted by the screening comb, and the impact is mitigated by the rebound damping rod, preventing large pieces of ore from falling from a height and damaging the inner lining. The large pieces of ore after impact is then guided into the inner lining by the guide angle. This solves the problem that the existing mine car buckets do not have a loading buffer device, large pieces of ore have a large impact on the inside of the bucket, causing severe wear and resulting in a short service life of the bucket. The stepped threaded pins connect the car body and the inner lining, allowing for replacement of the inner lining if it is damaged. During use, the stepped threaded pins are prevented from loosening by using a limit cover. This solves the problem that existing mine car bodies do not have replaceable inner linings, and once the inner wall is damaged, the entire car body structure needs to be replaced, resulting in waste. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the stepped threaded pin structure of this utility model; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the inner lining structure of this utility model; Figure 5 This is a schematic diagram of the buffer frame structure of this utility model.

[0013] In the diagram: 1. Truck body; 2. Lining; 3. Storage slot; 4. Buffer frame; 5. Screening comb; 6. Guide tilt angle; 7. Support frame; 8. Rebound damping rod; 9. Slide rail; 10. Sliding rod; 11. Handle; 12. Guide block; 13. Load-bearing frame; 14. Guide hole; 15. Stepped threaded hole; 16. Pin hole; 17. Stepped threaded pin; 18. Limiting cover; 19. Cleaning chamfer. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] Please see Figures 1-4 An anti-impact mine car bucket includes a bucket body 1, a liner 2 detachably connected inside the bucket body 1, storage slots 3 on both sides of the inner wall of the bucket body 1, and buffer frames 4 on both sides of the bucket body 1. The buffer frames 4 can slide into the storage slots 3 and can flip over to the top of the liner 2 when they are completely removed from the storage slots 3. Several screening combs 5 are fixedly installed inside the buffer frames 4, and the upper wall of the screening combs 5 is provided with a guide angle 6. Support frames 7 are fixedly installed on both sides of the inner wall of the liner 2, and several rebound damping rods 8 are fixedly installed on the upper wall of the support frames 7. When in use, the buffer frame 4 can slide and flip open flexibly. When opened, it can initially withstand the impact of ore. When stored, it does not occupy the effective volume of the truck bed. The guide angle 6 of the screening comb 5 can guide the ore to slide down. Combined with the elastic buffering effect of the rebound damping rod 8, it greatly reduces the impact force of ore on the truck bed and extends the service life of the truck bed.

[0016] Please see Figure 1 and Figure 5The storage slot 3 is fixedly equipped with a slide rail 9, and both ends of the buffer frame 4 are fixedly equipped with sliding rods 10 that are adapted to slide along the slide rail 9. A handle 11 is fixedly installed on the outer wall of the sliding rod 10. In use, the sliding cooperation between the slide rail 9 and the sliding rod 10 provides precise guidance for the movement and flipping of the buffer frame 4, ensuring that the buffer frame 4 is stable when unfolded and smooth and unobstructed when folded up. The handle 11 provides a convenient force point for the operator to operate the buffer frame 4, and the unfolding and folding of the buffer frame 4 can be easily completed without the need for additional tools, thus improving the efficiency of operation.

[0017] Please see Figure 4 Several guide blocks 12 are fixedly installed at intervals on the upper wall edge of the truck bed body 1, and a load-bearing frame 13 is fixedly installed on the upper wall edge of the inner liner 2. The load-bearing frame 13 has guide holes 14 that correspond to and are inserted into the guide blocks 12. In use, the insertion and engagement of the guide blocks 12 and the guide holes 14 can achieve precise positioning of the inner liner 2 and the truck bed body 1, avoid the inner liner 2 from shifting during installation, ensure that the inner liner 2 and the truck bed body 1 fit tightly, and at the same time, the load-bearing frame 13 can disperse the impact force borne by the inner liner 2 and transfer it to the truck bed body 1, thereby improving the overall load-bearing stability.

[0018] Please see Figures 2-3 The outer wall of the truck body 1 has several stepped threaded holes 15 spaced apart on both sides and bottom. The outer wall of the inner liner 2 has several pin holes 16 corresponding to the stepped threaded holes 15. The small end of the stepped threaded hole 15 is internally threaded with a stepped threaded pin 17. The stepped threaded pin 17 passes through the stepped threaded hole 15 and is inserted and fixed in the pin hole 16. In use, the stepped threaded pin 17, through the cooperation of the stepped threaded hole 15 and the pin hole 16, firmly fixes the inner liner 2 to the body 1 of the car body. The stepped hole structure adopts a multi-point distribution fixing method to make the inner liner 2 evenly stressed and prevent the inner liner 2 from loosening when the mine car is moving bumpy.

[0019] Please see Figure 3 The large end of the stepped threaded hole 15 is threadedly connected to a limiting cover 18 to prevent the stepped threaded pin 17 from loosening and falling off. The inner wall of the limiting cover 18 abuts against the end of the stepped threaded pin 17. In use, the limiting cover 18 covers the large end of the stepped threaded hole 15 through the threaded connection and abuts against the stepped threaded pin 17 from the end, preventing the stepped threaded pin 17 from loosening and falling off due to long-term vibration of the mine car. This forms a double fixing structure of "stepped threaded pin 17 plus limiting cover 18", which further improves the connection reliability between the inner liner 2 and the car body 1.

[0020] Please see Figure 3The internal thread at the large end of the stepped threaded hole 15 has the opposite rotation direction to the internal thread at the small end. In use, the opposite rotation direction design makes the locking direction of the limit cover 18 and the stepped threaded pin 17 opposite. When the mine car vibrates, the two will not loosen at the same time due to the force in the same direction. The structure blocks the transmission of loosening, greatly improves the anti-loosening effect of the fixing structure, and adapts to the harsh bumpy working environment of the mine car.

[0021] Please see Figure 4 The inner wall corners of the liner 2 are all provided with cleaning chamfers 19. When in use, the cleaning chamfers 19 can eliminate the right-angle dead corners of the inner wall of the liner 2, and prevent ore residue from accumulating at the corners and being difficult to clean. At the same time, it reduces the impact and wear of ore at the corners, extends the service life of the liner 2, and reduces the difficulty and workload of cleaning during daily maintenance.

[0022] Example 1: In this example, large pieces of ore are intercepted by the screening comb 5, and the impact is mitigated by the rebound damping rod 8 to prevent large pieces of ore from falling from a height and damaging the inner lining 2. The large pieces of ore after the impact is mitigated are then guided into the inner lining 2 by the guide tilt angle 6.

[0023] Specifically, during loading, the operator pulls the sliding rod 10 using handle 11, causing the buffer frame 4 to slide and rotate along the slide rail 9 in the storage slot 3 until it stabilizes. When loading ore, large pieces of ore first fall onto the screening comb 5 of the buffer frame 4. The screening comb 5 intercepts the large pieces of ore to prevent them from directly impacting the inner liner 2. At the same time, the rebound damping rod 8 buffers the impact force of the falling ore through elastic deformation. The guide angle 6 on the upper wall of the screening comb 5 guides the buffered ore to slide smoothly to the bottom of the inner liner 2. The entire process, through the coordinated action of "interception-buffering-guidance," significantly reduces the impact damage of ore on the truck bed, extending its service life without the need for additional protective measures. When not in use, the buffer frame 4 can be stored in the storage slot 3 by reversing the handle 11, without occupying the effective volume of the truck bed.

[0024] Example 2: In this example, the truck body 1 and the inner liner 2 are connected by a stepped threaded pin 17 so that the inner liner 2 can be replaced after damage. When in use, the stepped threaded pin 17 is prevented from loosening by using a limiting cover 18.

[0025] Specifically, when installing the inner liner 2, first align the guide hole 14 of the load-bearing frame 13 with the guide block 12 of the car body 1 to achieve precise positioning, ensuring that the stepped threaded hole 15 and pin hole 16 of the inner liner 2 and the car body 1 correspond respectively; then screw the stepped threaded pin 17 into the small hole end of the stepped threaded hole 15, pass it through the hole and insert it into the pin hole 16 of the inner liner 2. The multi-point distribution fixing method makes the inner liner 2 evenly stressed; then screw the limiting cover 18 into the large hole end of the stepped threaded hole 15, its inner wall pressing against the end of the stepped threaded pin 17, and with the opposite thread direction of the large hole end and the small hole end, a double anti-loosening is formed to prevent the structure from loosening due to the bumps of the mine car. When the inner liner 2 is worn, unscrew the limiting cover 18 and the stepped threaded pin 17 in the opposite direction to remove the inner liner 2 for replacement. Cleaning the chamfer 19 can also reduce ore residue and reduce the difficulty of maintenance and cleaning.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mine car anti-impact bucket, characterized in that, The vehicle includes a truck body (1), a liner (2) is detachably connected inside the truck body (1), storage slots (3) are provided on both sides of the inner wall of the truck body (1), and buffer frames (4) are provided on both sides of the truck body (1). The buffer frames (4) can slide into the storage slots (3) and can flip over to the top of the liner (2) when the buffer frames (4) are completely removed from the storage slots (3). Several screening combs (5) are fixedly installed inside the buffer frames (4), and a guide angle (6) is provided on the upper wall of the screening combs (5). Support frames (7) are fixedly installed on both sides of the inner wall of the liner (2), and several rebound damping rods (8) are fixedly installed on the upper wall of the support frames (7).

2. The anti-impact truck bucket for mining cars according to claim 1, characterized in that, The storage slot (3) is fixedly installed with a slide rail (9), and both ends of the buffer frame (4) are fixedly installed with sliding rods (10) that are adapted to slide on the slide rail (9). The outer wall of the sliding rod (10) is fixedly installed with a handle (11).

3. The anti-impact truck bucket for mining cars according to claim 1, characterized in that, A number of guide blocks (12) are fixedly installed at intervals on the upper wall edge of the truck body (1), and a load-bearing frame (13) is fixedly installed on the upper wall edge of the inner lining (2). The load-bearing frame (13) has guide holes (14) that correspond to and are inserted into the guide blocks (12).

4. The anti-impact car bucket for mining cars according to claim 1, characterized in that, The outer wall of the truck body (1) is provided with a number of stepped threaded holes (15) at intervals on both sides and bottom. The outer wall of the inner liner (2) is provided with a number of pin holes (16) corresponding to the stepped threaded holes (15). The small end of the stepped threaded hole (15) is internally threaded with a stepped threaded pin (17). The stepped threaded pin (17) passes through the stepped threaded hole (15) and is inserted and fixed in the pin hole (16).

5. The anti-impact car bucket for a mining car according to claim 4, characterized in that, The large end of the stepped threaded hole (15) is threaded with a limiting cap (18) to prevent the stepped threaded pin (17) from loosening and disengaging. The inner wall of the limiting cap (18) abuts against the end of the stepped threaded pin (17).

6. The anti-impact car bucket for a mining car according to claim 5, characterized in that, The internal thread at the large end of the stepped threaded hole (15) has the opposite rotation direction to the internal thread at the small end.

7. The anti-impact car bucket for a mining car according to claim 1, characterized in that, The inner wall corners of the lining (2) are all provided with clean chamfers (19).

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