Coal mine scraper conveyor

Abstract

The utility model discloses a coal mine scraper conveyor which comprises a support, and a driving machine is arranged on the right side of the support. The driving machine is connected with a chain through a gear, the chain is connected with the outer side of a conveying plate, and the conveying plate is slidably connected to the support. The rear end of the driving machine is connected with the rear end of a rotating rod through a belt pulley set, the rotating rod is connected to the right side of the support through a bearing, the middle of the rotating rod is in key connection with a cam, the right end of the cam is attached to the left end of an ejector rod, and the right end of the ejector rod extends into the infusion tube to form a sealing mechanism. The coal mine scraper conveyor is provided with the flow guide pipe, the ejector rod is extruded by the cam to move, so that the ejector rod can drive lubricating liquid to be conveyed to the flow guide pipe, then the lubricating liquid can be conveyed to the chain through the flow guide pipe to play a lubricating role, impurities adsorbed on the chain are prevented from influencing the lubricating liquid, and therefore the lubricating liquid is prevented from being polluted.

Description

Technical Field

[0001] This utility model relates to the field of scraper conveyor technology, specifically a scraper conveyor for coal mines. Background Technology

[0002] Coal mine scraper conveyors are the core equipment of the integrated mechanized coal mining system in underground coal mines. They continuously and stably transport the coal cut by the coal mining machine to the transfer machine or belt conveyor, realizing automated transportation from the working face to the transportation roadway.

[0003] Existing coal mine scraper conveyors are driven by chains. However, the operating environment of coal mine scraper conveyors is relatively harsh. In order to avoid damage to the chain, it is necessary to manually lubricate the chain regularly so that the chain can be used normally. However, manual regular lubrication is inefficient, which leads to inconvenience in use.

[0004] To address the aforementioned shortcomings, a slag self-sealing scraper conveyor with publication number CN220011000U is disclosed. By activating an electric telescopic rod, the baffle can be moved, allowing the leakage hole on the left side of the baffle to enter the interior of the lubrication frame. This allows the lubricant in the lubrication frame cavity to enter the lubrication groove cavity. When the chain passes the second sprocket, it will be lubricated, making the chain run more smoothly. By designing the feeding hopper with a side-sloping design, direct contact between the material and the chain can be avoided, thereby preventing the chain from getting stuck and falling off.

[0005] In actual use, although the above-mentioned device can facilitate chain lubrication, due to the harsh operating environment, impurities will be adsorbed on the surface of the chain. As a result, after the chain passes through the lubrication groove, the impurities on the surface of the chain will fall into the lubricating oil, which will cause the lubricating oil to be contaminated and thus affect the next use of the lubricating oil.

[0006] Therefore, we proposed a scraper conveyor for coal mines that can effectively solve the above problems. Summary of the Invention

[0007] The purpose of this utility model is to provide a scraper conveyor for coal mines to solve the problem mentioned in the background art: the harsh operating environment in the current market causes impurities to be absorbed on the surface of the chain, which in turn causes the chain to drop impurities into the lubricating oil after passing through the lubrication groove, thus contaminating the lubricating oil and affecting its subsequent use.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a coal mine scraper conveyor, including a support frame, wherein a drive motor is provided on the right side of the support frame;

[0009] The drive motor is connected to the chain via gears, and the chain is connected to the outer side of the conveyor plate, and the conveyor plate is slidably connected to the bracket;

[0010] The rear end of the drive motor is connected to the rear end of the rotating rod via a pulley assembly. The rotating rod is connected to the right side of the bracket via a bearing, and a cam is keyed to the middle of the rotating rod. The right end of the cam is attached to the left end of the push rod, and the right end of the push rod extends into the interior of the infusion tube to form a sealing mechanism. The infusion tube is fixed to the right side of the bracket. A first spring is nested at the left end of the push rod, and the right side of the first spring is connected to the left side of the infusion tube. A guide tube is connected to the right side of the infusion tube, and a storage tank is connected to the top of the infusion tube. The storage tank is mounted on the bracket.

[0011] Preferably, the bottom of the liquid storage tank and the top rod form a sliding sealing mechanism, and the right side of the top rod is made of rubber material.

[0012] Preferably, the bottom of the guide tube is perpendicular to the chain, and the top of the guide tube contains a one-way valve.

[0013] Preferably, the top of the liquid storage tank is slidably connected to a sealing cover, and the inside of the sealing cover is slidably connected to a locking block, and the bottom of the inner end of the locking block is arc-shaped.

[0014] Preferably, the inner end of the card block extends into the inside of the card slot to form a locking mechanism, and the card slot is opened inside the liquid storage tank.

[0015] Preferably, the outer end of the card block is connected to a second spring, and the outer end of the second spring is connected to the inside of the sealing cover.

[0016] Preferably, the outer end of the card block is connected to a pull ring, and the outer end of the pull ring extends out of the interior of the sealing cover through a roller to form a sliding mechanism, and the roller is connected to the interior of the sealing cover through a bearing.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the coal mine scraper conveyor avoids contamination of lubricating oil and facilitates the addition of lubricating fluid. The use of the guide pipe allows lubricating fluid to drip onto the chain, thus providing lubrication and preventing contamination. The movement of the locking block allows for quick disassembly and assembly of the sealing cover, facilitating the addition of lubricating fluid. The specific details are as follows:

[0018] It is equipped with a guide tube, and the push rod is moved by the cam, so that the push rod can drive the lubricant to be delivered to the guide tube. Then, the lubricant can be delivered to the chain through the guide tube to play a lubricating role. This prevents impurities adsorbed on the chain from affecting the lubricant, thus avoiding the lubricant from being contaminated.

[0019] Equipped with a sealing cap, the sealing cap can be disengaged from the slot by moving the locking block, thus allowing the sealing cap to be easily and quickly installed and removed from the liquid storage tank, making it convenient to add lubricant into the liquid storage tank.

[0020] A second spring is provided, which is connected to the outer end of the locking block and the outer end of the second spring is connected to the inside of the sealing cover. This allows the second spring to limit the locking block, thereby improving the stability of the locking block.

[0021] A one-way valve is installed, which is vertically positioned between the bottom of the guide tube and the chain, and the top of the guide tube contains a one-way valve. This one-way valve can seal the lubricant, thereby preventing the lubricant from dripping continuously.

[0022] The device is equipped with rollers, and a pull ring is connected to the outer end of the locking block. The outer end of the pull ring extends out of the interior of the sealing cover through the rollers to form a sliding mechanism. The rollers are connected to the interior of the sealing cover through bearings, which reduces the wear of the pull rings and improves their service life. Attached Figure Description

[0023] Figure 1 This is a front view structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the connection structure between the bracket and the drive motor of this utility model;

[0025] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0026] Figure 4 This is a schematic diagram of the connection structure between the push rod and the infusion tube of this utility model;

[0027] Figure 5 This is a schematic diagram of the connection structure between the flow guide tube and the one-way valve of this utility model;

[0028] Figure 6 This is a schematic diagram of the connection structure between the card block and the card slot of this utility model.

[0029] In the diagram: 1. Support; 2. Drive motor; 3. Chain; 4. Conveyor plate; 5. Liquid storage tank; 6. Infusion pipe; 7. Guide pipe; 8. Check valve; 9. Pulley assembly; 10. Rotating rod; 11. Cam; 12. Push rod; 13. First spring; 14. Sealing cover; 15. Locking block; 16. Locking groove; 17. Second spring; 18. Pull ring; 19. Roller. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1: A coal mine scraper conveyor solves the problem that in existing operating environments, impurities accumulate on the surface of the chain 3, causing these impurities to fall into the lubricating oil after passing through the lubrication trough, thus contaminating the lubricating oil and affecting its subsequent use. The use of the infusion pipe 6 avoids this contamination of the lubricating oil. The following is disclosed:

[0032] A drive motor 2 is located on the right side of the support 1. The drive motor 2 is connected to a chain 3 via gears, and the chain 3 is connected to the outer side of the conveyor plate 4, which is slidably connected to the support 1. The rear end of the drive motor 2 is connected to the rear end of a rotating rod 10 via a pulley group 9. The rotating rod 10 is connected to the right side of the support 1 via a bearing, and a cam 11 is keyed to the middle of the rotating rod 10. The right end of the cam 11 is attached to the left end of a push rod 12, and the right end of the push rod 12 extends into the inside of the infusion tube 6 to form a sealing mechanism. The infusion tube 6 is fixed to the right side of the support 1. The left end of the top rod 12 is nested with a first spring 13, and the right side of the first spring 13 is connected to the left side of the infusion tube 6. The right side of the infusion tube 6 is connected to a guide tube 7. The top of the infusion tube 6 is connected to a storage tank 5, and the storage tank 5 is installed on the support 1. The bottom of the storage tank 5 and the top rod 12 form a sliding sealing mechanism. The right side of the top rod 12 is made of rubber material. The bottom of the guide tube 7 is perpendicular to the chain 3, and the top of the guide tube 7 contains a one-way valve 8.

[0033] refer to Figures 1 to 5The drive motor 2 drives the chain 3 to rotate, which in turn drives the conveyor plate 4 to rotate cyclically within the support 1, thus enabling the conveyor plate 4 to transport coal. The rotation of the drive motor 2, via the pulley group 9, drives the rotating rod 10 to rotate, which in turn drives the cam 11 to rotate. The rotation of the cam 11 then compresses the push rod 12, causing it to slide inside the infusion tube 6. The movement of the push rod 12 compresses the first spring 13, causing it to be compressed. Furthermore, the movement of the push rod 12 also blocks the storage tank 5. The squeezing action can transport the lubricant in the infusion tube 6 to the guide tube 7, and the lubricant will squeeze the one-way valve 8, thereby opening the one-way valve 8. Thus, the lubricant can drip onto the chain 3 through the guide tube 7 to play a lubricating role. After the cam 11 disengages from squeezing the push rod 12, the first spring 13 can push the push rod 12 to reset. The reset push rod 12 will disengage from the seal of the reservoir 5, and then the lubricant in the reservoir 5 will be transported to the inside of the infusion tube 6. This process is repeated, so that the chain 3 can be automatically lubricated, thereby improving the convenience of lubrication and preventing contamination of the lubricant.

[0034] Example 2: A coal mine scraper conveyor solves the problem of inconvenient disassembly caused by the threaded connection between the existing liquid storage tank 5 and the sealing cover 14. The use of the locking block 15 facilitates the easy disassembly of the sealing cover 14. The following is disclosed:

[0035] The top of the liquid storage tank 5 is slidably connected to a sealing cover 14, and the inside of the sealing cover 14 is slidably connected to a locking block 15. The bottom of the inner end of the locking block 15 is arc-shaped. The outer end of the locking block 15 is connected to a pull ring 18, and the outer end of the pull ring 18 extends out of the inside of the sealing cover 14 through a roller 19 to form a sliding mechanism. The roller 19 is connected to the inside of the sealing cover 14 through a bearing.

[0036] refer to Figure 2 and Figure 6 When lubricant needs to be added, by pulling the pull ring 18, the pull ring 18 can drive the locking block 15 to move via the roller 19. This movement of the locking block 15 disengages from the locking groove 16, and the movement of the locking block 15 compresses the second spring 17. This compression causes the second spring 17 to be compressed, and then the sealing cover 14 is pulled, thus separating the sealing cover 14 from the reservoir 5. This allows lubricant to be injected into the reservoir 5, thereby improving the convenience of adding lubricant.

[0037] Example 3: A coal mine scraper conveyor solves the problem of inconvenient installation of the sealing cover 14 in Example 2. The installation of the sealing cover 14 can be facilitated by using the second spring 17. The following is disclosed:

[0038] The outer end of the locking block 15 is connected to the second spring 17, and the outer end of the second spring 17 is connected to the inside of the sealing cover 14. The inner end of the locking block 15 extends into the inside of the locking groove 16 to form a locking mechanism, and the locking groove 16 is opened inside the liquid storage tank 5.

[0039] refer to Figure 2 and Figure 6 By attaching the sealing cap 14 to the liquid storage tank 5 and pressing the sealing cap 14, the movement of the sealing cap 14 can drive the locking block 15 to move. The locking block 15 then moves and presses against the outer wall of the liquid storage tank 5, causing the locking block 15 to slide inwards from the sealing cap 14. The movement of the locking block 15 also compresses the second spring 17, causing the second spring 17 to be compressed. After the sealing cap 14 moves to the position, the force of the second spring 17 will push the locking block 15 into the slot 16 to form a lock, thereby enabling a stable connection between the sealing cap 14 and the liquid storage tank 5.

[0040] Working principle: When using this type of coal mine scraper conveyor, firstly, refer to... Figures 1 to 5 The drive motor 2 drives the chain 3 to rotate, which in turn enables the conveyor plate 4 to transport coal. The rotating rod 10 then rotates, causing the cam 11 to rotate. The rotation of the cam 11 compresses the push rod 12, which slides inside the infusion tube 6. The movement of the push rod 12 also blocks the storage tank 5. The compression of the push rod 12 can transport the lubricant in the infusion tube 6 to the guide tube 7, so that the lubricant can drip onto the chain 3 through the guide tube 7 to lubricate it. After the cam 11 releases the compression of the push rod 12, the first spring 13 can push the push rod 12 to reset, which in turn allows the lubricant in the storage tank 5 to be transported to the inside of the infusion tube 6. This process is repeated, which improves the convenience of lubrication and does not contaminate the lubricant.

[0041] refer to Figure 2 and Figure 6 When lubricant needs to be added, by pulling the pull ring 18, the pull ring 18 can move the locking block 15 through the roller 19, and then pull the sealing cover 14, so that the sealing cover 14 can be separated from the reservoir 5, thereby injecting lubricant into the reservoir 5, thus improving the convenience of adding lubricant.

[0042] refer to Figure 2 and Figure 6By attaching the sealing cap 14 to the liquid storage tank 5 and pressing the sealing cap 14, the movement of the sealing cap 14 can drive the locking block 15 to move. The movement of the locking block 15 will compress the second spring 17. After the sealing cap 14 moves to the position, the force of the second spring 17 will push the locking block 15 into the inside of the locking groove 16 to form a lock, thereby enabling a stable connection between the sealing cap 14 and the liquid storage tank 5.

[0043] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coal mine scraper conveyor, comprising a support (1), a drive machine (2) is arranged on the right side of the support (1); characterized in that The drive machine (2) is connected with the chain (3) through a gear, and the chain (3) is connected with the outer side of the conveying plate (4), and the conveying plate (4) is slidingly connected on the support (1); The rear end of the drive machine (2) is connected with the rear end of the rotating rod (10) through the pulley set (9), and the rotating rod (10) is connected on the right side of the support (1) through a bearing, and the middle part of the rotating rod (10) is keyed with the cam (11), the right end of the cam (11) is fitted on the left end of the top rod (12), the right end of the top rod (12) extends into the inside of the infusion tube (6) to form a sealing mechanism, and the infusion tube (6) is fixed on the right side of the support (1), the left end of the top rod (12) is nested with the first spring (13), the right side of the first spring (13) is connected with the left side of the infusion tube (6), and the right side of the infusion tube (6) is connected with the flow guide pipe (7), the top of the infusion tube (6) is connected with the liquid storage tank (5), and the liquid storage tank (5) is installed on the support (1).

2. A coal mine scraper conveyor according to claim 1, characterised in that: The bottom of the liquid storage tank (5) and the top rod (12) form a sliding sealing mechanism, and the right side of the top rod (12) is made of rubber material.

3. A coal mine scraper conveyor according to claim 1, characterised in that: The bottom of the flow guide pipe (7) is vertically arranged between the chain (3), and the top of the flow guide pipe (7) contains a one-way valve (8).

4. A coal mine scraper conveyor according to claim 1, characterised in that: The top of the liquid storage tank (5) is slidingly connected with a sealing cover (14), the inside of the sealing cover (14) is slidingly connected with a clamping block (15), and the bottom of the inner end of the clamping block (15) is arranged in an arc shape.

5. A coal mine scraper conveyor according to claim 4, characterised in that: The inner end of the clamping block (15) extends into the inside of the clamping groove (16) to form a clamping mechanism, and the clamping groove (16) is opened in the inside of the liquid storage tank (5).

6. A coal mine scraper conveyor as claimed in claim 4 wherein: The outer end of the clamping block (15) is connected with a second spring (17), and the outer end of the second spring (17) is connected in the inside of the sealing cover (14).

7. A coal mine scraper conveyor as claimed in claim 6 wherein: The outer end of the clamping block (15) is connected with a pull ring (18), and the outer end of the pull ring (18) extends out of the inside of the sealing cover (14) through a roller (19) to form a sliding mechanism, and the roller (19) is connected in the inside of the sealing cover (14) through a bearing.

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