Mining dust removal fan

Abstract

The mining dust removal fan comprises an impeller assembly, a discharge port adjusting mechanism, a position fixing mechanism and a fixing auxiliary mechanism, the discharge port adjusting mechanism comprises a discharge hopper, an adjusting disc, a rotating shaft, a rotating plate, a rotating handle and an adjusting hole, and the position fixing mechanism comprises a clamping pipe, a clamping rod, an extending rod, a limiting ring and a spiral plate. The exhaust port adjusting mechanism can flexibly adjust the flow area of an exhaust port according to actual needs, through annular arrangement of multiple sets of adjusting holes, the fan can effectively adjust the flow area under different working conditions, the dust removal effect and the high efficiency of fan operation are ensured, the position fixing mechanism can effectively lock the positions of the rotating handle and the rotating shaft in the adjusting process, and the adjusting effect is good. It is ensured that the flow area of the exhaust port is kept stable and unchanged when needed, and adjustment position drifting caused by vibration or external force interference is prevented.

Description

Technical Field

[0001] This utility model relates to the field of dust removal fan technology, and more specifically, to a dust removal fan for mining. Background Technology

[0002] In existing mining dust removal fan technology, the flow area of ​​the discharge outlet is often fixed and cannot be flexibly adjusted according to actual needs. This design is particularly inconvenient in some special situations. For example, in different working environments, mining fans may need to adjust the air volume and airflow speed according to the dust concentration, emission standards, or the working status of the fan, resulting in insufficient dust removal effect or energy waste.

[0003] In addition, the frequent adjustments in existing technologies also present some inconveniences. During the use of mining dust collectors, the discharge flow rate often needs to be adjusted according to production conditions, especially when the load changes significantly. Furthermore, the installation and removal of the discharge outlet adjustment device is also a major problem for operators. Traditional mining dust collectors often require the disassembly or replacement of discharge outlet components to adjust the flow rate, which not only increases the complexity of maintenance and operation but also brings safety hazards. Especially in high-temperature, high-dust, or high-pressure working environments, workers are easily exposed to dangerous working conditions when performing loading and unloading operations. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a mining dust removal fan to solve the technical problems mentioned in the background art, such as the inconvenience of adjusting the flow area of ​​the discharge outlet and the inconvenience of frequent adjustment and loading and unloading.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a mining dust removal fan, comprising an impeller assembly, a discharge outlet adjustment mechanism, a position fixing mechanism, and a fixing auxiliary mechanism. The discharge outlet adjustment mechanism includes a discharge hopper, an adjustment disc, a rotating shaft, a rotating plate, a handle, and adjustment holes. The discharge hopper is installed at the bottom end of the impeller assembly, the adjustment disc is installed on the discharge hopper, the rotating shaft is installed inside the discharge hopper, the rotating plate is installed on the rotating shaft and rotatably disposed inside the discharge hopper, multiple sets of adjustment holes are arranged annularly on the adjustment disc, and the handle is installed on the rotating shaft. The position fixing mechanism... The fixing mechanism includes a clamping tube, a clamping rod, an extension rod, a limiting ring, and a spiral plate. The clamping tube is fixedly installed on the throttle. The clamping rod can extend through different adjustment holes and through the throttle to engage with the clamping tube, fixing the throttle and shaft in the desired position. The extension rod is laterally slidably installed on the side wall of the clamping tube and spirally distributed on the outer wall of the clamping tube. The limiting ring is installed on the outer wall of the clamping tube to limit rotation. The spiral plate is installed at the bottom end of the limiting ring and can press against one end of the extension rod, causing the extension rod to extend into the clamping rod and fix the clamping rod inside the clamping tube.

[0008] The present invention is further configured such that the fixing auxiliary mechanism includes a rotating block, a winding rod, a return spring, a threaded ring, and a linkage block. The rotating block is installed at the top end of the limiting ring, the winding rod is fixedly installed on the outer wall of the clamping tube, the return spring is sleeved on the winding rod, the rotating block is rotatably and slidably installed on the winding rod, one end of the return spring is connected to the rotating block, the threaded ring is threadedly connected to the outer wall of the clamping tube, and the linkage block is installed on the outer surface of the threaded ring. The rotation of the linkage block locks and pushes the rotating block step by step, causing it to rotate on the winding rod.

[0009] The present invention is further provided that a mounting bracket is installed on the side of the impeller assembly, and the device is fixed in the required position through the mounting bracket. The mounting bracket ensures that the entire device can be firmly fixed in the required position, and avoids the device from changing position due to vibration or external interference during operation.

[0010] The present invention is further configured such that a drive motor is mounted on the side of the mounting bracket, and a transmission belt assembly is mounted on the output end of the drive motor. The drive motor provides power to the fan and drives the impeller assembly to rotate, ensuring that the fan can continuously generate airflow.

[0011] The present invention is further configured such that an output shaft is installed at one end of the transmission belt assembly, and the output shaft is rotatably mounted on the mounting bracket. One end of the output shaft is connected to the impeller assembly. As a key component for power transmission, the output shaft ensures that the power of the transmission belt assembly is effectively transmitted to the impeller assembly.

[0012] The present invention is further configured such that a connecting plate is installed at the bottom end of the side wall of the clamping pipe, and the connecting plate is fixedly installed on the throttle handle, thereby ensuring a stable connection between the throttle handle and the clamping pipe, which helps to adjust and fix the state of the outlet.

[0013] The present invention is further configured such that a tension spring is installed between one end of the extension rod and the inner wall of the locking tube. The tension spring pulls the extension rod away from the locking rod. By installing a tension spring between the extension rod and the inner wall of the locking tube, it can be ensured that the extension rod remains away from the locking rod when locking.

[0014] The present invention is further configured such that a linkage groove is provided on the rotating block, and the linkage block can extend into the linkage groove to make the rotating block rotate on the rod. The linkage groove and the linkage block can achieve precise adjustment and locking, ensuring the precise coordination and stable operation of each component of the fan during operation.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a dust removal fan for mining, which has the following beneficial effects:

[0017] This utility model is equipped with an outlet adjustment mechanism. The outlet can be flexibly adjusted according to actual needs through the design of components such as adjustment disc, rotating shaft, and rotating plate. Through the annular arrangement of multiple sets of adjustment holes, the fan can effectively adjust the flow area under different operating conditions, ensuring dust removal effect and high efficiency of fan operation. Users can quickly adjust the outlet flow rate, avoiding the cumbersome steps of disassembling or replacing parts required by traditional fans.

[0018] This utility model is equipped with a position fixing mechanism. The design of components such as the locking tube, locking rod, and extension rod can effectively lock the position of the throttle and shaft during the adjustment process, ensuring that the flow area of ​​the outlet remains stable when needed, and preventing the adjustment position from drifting due to vibration or external force interference. The position is fixed by the cooperation of the locking tube and locking rod, and the sliding function of the extension rod makes it easy to quickly unlock after adjustment, which greatly improves the convenience of operation.

[0019] This utility model is equipped with a fixed auxiliary mechanism. The cooperative action of components such as the rotating block, the winding rod, and the return spring enables each component to be locked more precisely and operate stably during the adjustment process. This prevents the equipment from loosening or shifting due to external forces or vibrations, ensuring the reliability of the equipment during long-term operation. The linkage groove on the rotating block and the cooperation of the linkage block ensure the accuracy of adjustment and locking, thereby enabling precise control when adjusting the flow area of ​​the outlet and avoiding the impact of improper adjustment on the fan performance. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0021] Figure 2 This is a schematic diagram of the device from a side view.

[0022] Figure 3 This is a schematic diagram of the outlet adjustment mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the position fixing mechanism and the fixing auxiliary mechanism in this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the position fixing mechanism and the fixing auxiliary mechanism in this utility model.

[0025] In the diagram: 1. Impeller assembly; 2. Discharge hopper; 3. Adjusting disc; 4. Rotating shaft; 5. Rotating plate; 6. Turning handle; 7. Adjusting hole; 8. Snap-fit ​​pipe; 9. Snap-fit ​​rod; 10. Extension rod; 11. Limiting ring; 12. Spiral plate; 13. Rotating block; 14. Winding rod; 15. Return spring; 16. Threaded ring; 17. Linkage block; 18. Mounting bracket; 19. Drive motor; 20. Transmission belt assembly; 21. Output shaft; 22. Connecting plate; 23. Tension spring; 24. Linkage groove. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5A mining dust collector fan includes an impeller assembly 1, a discharge outlet adjustment mechanism, a position fixing mechanism, and a fixing auxiliary mechanism. The discharge outlet adjustment mechanism includes a discharge hopper 2, an adjustment disc 3, a rotating shaft 4, a rotating plate 5, a handle 6, and adjustment holes 7. The discharge hopper 2 is installed at the bottom end of the impeller assembly 1, the adjustment disc 3 is installed on the discharge hopper 2, the rotating shaft 4 is installed inside the discharge hopper 2, the rotating plate 5 is installed on the rotating shaft 4 and is rotatably disposed inside the discharge hopper 2, multiple sets of adjustment holes 7 are arranged annularly on the adjustment disc 3, and the handle 6 is installed on the rotating shaft 4. The position fixing mechanism includes a clamping pipe 8, a clamping rod 9, and an extension rod 10. The limiting ring 11 and the spiral plate 12, and the clamping tube 8 are fixedly installed on the throttle 6. The clamping rod 9 can extend through different adjustment holes 7 and extend through the throttle 6 to engage with the clamping tube 8, fixing the throttle 6 and the rotating shaft 4 in the required position. The extension rod 10 is laterally slidably installed on the side wall of the clamping tube 8. The extension rod 10 is spirally distributed on the outer wall of the clamping tube 8. The limiting ring 11 is installed on the outer wall of the clamping tube 8 to limit rotation. The spiral plate 12 is installed at the bottom end of the limiting ring 11. The spiral plate 12 can press against one end of the extension rod 10, so that the extension rod 10 extends into the clamping rod 9, and the clamping rod 9 is fixed in the clamping tube 8.

[0030] In this embodiment, the discharge hopper 2 is fixed to the bottom of the impeller assembly 1 and is mainly responsible for collecting the dust-laden gas discharged by the impeller. The adjusting disc 3 is installed on the discharge hopper 2, providing a base for adjustable angle. When the size of the ventilation opening of the discharge hopper 2 needs to be adjusted, the operator can manually rotate the handle 6 installed on the outside. The handle 6 drives the rotating shaft 4 to rotate, and the rotating shaft 4 drives the rotating plate 5 to rotate inside the discharge hopper 2, thereby changing the flow area. The adjusting disc 3 is pre-set with multiple adjusting holes 7 arranged in a ring. Different angles correspond to different adjusting holes 7, which facilitates quick and accurate adjustment of the internal state. When the handle 6 is rotated to the target angle, the precise positioning and locking are completed by the snap-fit ​​structure to prevent angle deviation during operation. After placement, the locking rod 9 passes through the adjustment hole 7, and further through the throttle 6 and the locking tube 8 fixed on the throttle 6, thereby locking the angle of the rotating shaft 4 and the throttle 6 and keeping the fan outlet in the specified direction. The extension rod 10 installed on the side wall of the locking tube 8 can slide laterally under the action of the spring. Under normal conditions, the tension spring 23 causes it to disengage from the locking rod 9. When it needs to be fixed, the extension rod 10 is pressed to extend into the inside of the locking rod 9, strengthening the cooperation between the locking rod 9 and the locking tube 8 and forming a double lock. The limiting ring 11 is sleeved on the locking tube 8, and a spiral plate 12 is provided at its bottom. The spiral plate 12 further limits the position of the extension rod 10 by pressing it, so that the extension rod 10 will not loosen due to vibration or rebound.

[0031] The fixed auxiliary mechanism includes a rotating block 13, a winding rod 14, a return spring 15, a threaded ring 16, and a linkage block 17. The rotating block 13 is installed on the top end of the limiting ring 11. The winding rod 14 is fixedly installed on the outer wall of the retaining tube 8. The return spring 15 is fitted on the winding rod 14. The rotating block 13 is rotatably and slidably installed on the winding rod 14. One end of the return spring 15 is connected to the rotating block 13. The threaded ring 16 is threadedly connected to the outer wall of the retaining tube 8. The linkage block 17 is installed on the outer surface of the threaded ring 16. The rotation of the linkage block 17 locks and pushes the rotating block 13 step by step, causing it to rotate on the winding rod 14.

[0032] In this embodiment, the rotating block 13 is located at the top of the retaining tube 8, the winding rod 14 is fixed to the outer wall of the retaining tube 8, and the return spring 15 is sleeved on the winding rod 14. One end of the return spring 15 is connected to the rotating block 13 to provide initial restoring force. The external rotating threaded ring 16 drives the external linkage block 17 to rotate. The linkage block 17 is inserted into the linkage groove 24 on the rotating block 13 to achieve synchronous rotation of the two. The rotation of the threaded ring 16 pushes the rotating block 13 step by step, causing it to rotate on the winding rod 14. When it is necessary to release the adjustment mechanism, simply rotate the threaded ring 16 in the opposite direction, and the linkage block 17 will exit the linkage groove 24. Under the action of the return spring 15, the rotating block 13 automatically returns to its initial position, and the auxiliary structure reset is completed.

[0033] Please see Figures 1-5 As a supplementary embodiment of a mining dust removal fan with an outlet adjustment mechanism, a position fixing mechanism, and a fixing auxiliary mechanism: A mounting bracket 18 is installed on the side of the impeller assembly 1, and the device is fixed in the required position through the mounting bracket 18. A drive motor 19 is installed on the side of the mounting bracket 18, and a transmission belt assembly 20 is installed at the output end of the drive motor 19. An output shaft 21 is installed at one end of the transmission belt assembly 20, and the output shaft 21 is rotatably mounted on the mounting bracket 18. One end of the output shaft 21 is connected to the impeller assembly 1. A connecting plate 22 is installed at the bottom end of the side wall of the clamping pipe 8, and the connecting plate 22 is fixedly installed on the throttle 6. A tension spring 23 is installed between one end of the extension rod 10 and the inner wall of the clamping pipe 8. The tension spring 23 pulls the extension rod 10 away from the clamping rod 9. A linkage groove 24 is opened on the rotating block 13, and the linkage block 17 can extend into the linkage groove 24 to make the rotating block 13 rotate on the winding rod 14.

[0034] More specifically, after power is supplied, the drive motor 19 installed on the side of the mounting bracket 18 starts to run. The drive motor 19 drives the output shaft 21 to rotate through the transmission belt assembly 20. The output shaft 21 is connected to the impeller assembly 1, and the impeller starts to rotate, forming a suction and dust removal effect. The dust-laden air is sucked into the impeller, accelerated by the impeller, and discharged from the discharge hopper 2 at the bottom. The discharged air is guided to the dust removal pipeline or filtration system through the adjusted discharge outlet. According to the operation requirements, the flow area is adjusted by rotating the handle 6. The position fixing mechanism completes the locking of the rotating shaft 4, and the fixing auxiliary mechanism further locks it to ensure stable operation.

[0035] In summary, during the use or operation of the overall equipment: When the outlet adjustment mechanism is required, the discharge hopper 2 is fixed at the bottom of the impeller assembly 1 and is mainly responsible for collecting the dust-laden gas discharged by the impeller. The adjustment disc 3 is installed on the discharge hopper 2, providing a base for adjustable angle. When the size of the ventilation opening of the discharge hopper 2 needs to be adjusted, the operator can manually rotate the externally mounted handle 6. The handle 6 drives the rotating shaft 4 to rotate, and the rotating shaft 4 drives the rotating plate 5 to rotate inside the discharge hopper 2, thereby changing the flow area. The adjustment disc 3 is pre-set with multiple adjustment holes 7 arranged in a ring. Different angles correspond to different adjustment holes 7, which facilitates quick and accurate adjustment of the internal state. When the handle 6 is rotated to the target angle, the locking structure completes the precise positioning and locking to prevent angle deviation during operation.

[0036] When the position fixing mechanism is in operation, after the throttle 6 is turned to the target position, the locking rod 9 passes through the adjustment hole 7, and further passes through the throttle 6 and the locking tube 8 fixed on the throttle 6, thereby locking the angle of the rotating shaft 4 and the throttle 6 and keeping the fan outlet in the specified direction. The extension rod 10 installed on the side wall of the locking tube 8 can slide laterally under the action of the spring. Under normal conditions, the tension spring 23 acts to disengage it from the locking rod 9. When fixing is required, the extension rod 10 is pressed to extend into the inside of the locking rod 9, strengthening the cooperation between the locking rod 9 and the locking tube 8, forming a double lock. The limiting ring 11 is sleeved on the locking tube 8, and a spiral plate 12 is provided at its bottom. The spiral plate 12 further limits the position of the extension rod 10 by pressing it, so that the extension rod 10 will not loosen due to vibration or rebound.

[0037] When the auxiliary mechanism needs to be fixed during operation, the rotating block 13 is located at the top of the retaining tube 8, the winding rod 14 is fixed to the outer wall of the retaining tube 8, and the return spring 15 is sleeved on the winding rod 14. One end of the return spring 15 is connected to the rotating block 13 to provide initial restoring force. The external rotating threaded ring 16 drives the external linkage block 17 to rotate. The linkage block 17 is inserted into the linkage groove 24 on the rotating block 13 to achieve synchronous rotation of the two. The rotation of the threaded ring 16 pushes the rotating block 13 step by step, causing it to rotate on the winding rod 14. When the adjustment mechanism needs to be released, simply rotate the threaded ring 16 in the opposite direction, and the linkage block 17 exits the linkage groove 24. Under the action of the return spring 15, the rotating block 13 automatically returns to its initial position, and the auxiliary structure reset is completed.

[0038] After power is supplied, the drive motor 19 installed on the side of the mounting bracket 18 starts to run. The drive motor 19 drives the output shaft 21 to rotate through the transmission belt assembly 20. The output shaft 21 is connected to the impeller assembly 1, and the impeller starts to rotate, forming a suction and dust removal effect. Dust-laden air is sucked into the impeller, accelerated by the impeller, and discharged from the discharge hopper 2 at the bottom. The discharged air is guided to the dust removal pipeline or filtration system through the adjusted discharge outlet. According to the operation requirements, the flow area is adjusted by rotating the handle 6. The position fixing mechanism completes the locking of the rotating shaft 4, and the fixing auxiliary mechanism further locks it to ensure stable operation.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dust removal fan for mining, comprising an impeller assembly (1), an outlet adjustment mechanism, a position fixing mechanism, and a fixing auxiliary mechanism, characterized in that: The discharge adjustment mechanism includes a discharge hopper (2), an adjustment disc (3), a rotating shaft (4), a rotating plate (5), a handle (6), and adjustment holes (7). The discharge hopper (2) is installed at the bottom end of the impeller assembly (1), the adjustment disc (3) is installed on the discharge hopper (2), the rotating shaft (4) is installed inside the discharge hopper (2), the rotating plate (5) is installed on the rotating shaft (4), and the rotating plate (5) is rotatably disposed inside the discharge hopper (2). Multiple sets of adjustment holes (7) are arranged in a ring on the adjustment disc (3), and the handle (6) is installed on the rotating shaft (4). The position fixing mechanism includes a locking mechanism. The connector (8), the snap-fit ​​rod (9), the extension rod (10), the limiting ring (11), and the spiral plate (12) are arranged in a spiral pattern on the outer wall of the connector (8). The snap-fit ​​rod (8) is fixedly installed on the throttle (6). The extension rod (10) is slidably installed on the side wall of the connector (8). The extension rod (10) is spirally distributed on the outer wall of the connector (8). The limiting ring (11) is installed on the outer wall of the connector (8) to limit rotation. The spiral plate (12) is installed at the bottom end of the limiting ring (11) so that the extension rod (10) extends into the snap-fit ​​rod (9) and the snap-fit ​​rod (9) is fixed in the connector (8).

2. A dust removal fan for mining according to claim 1, characterized in that: The fixed auxiliary mechanism includes a rotating block (13), a winding rod (14), a return spring (15), a threaded ring (16), and a linkage block (17). The rotating block (13) is installed on the top end of the limiting ring (11). The winding rod (14) is fixedly installed on the outer wall of the retaining tube (8). The return spring (15) is fitted on the winding rod (14). The rotating block (13) is rotatably and slidably installed on the winding rod (14). One end of the return spring (15) is connected to the rotating block (13). The threaded ring (16) is threadedly connected to the outer wall of the retaining tube (8). The linkage block (17) is installed on the outer surface of the threaded ring (16).

3. A dust removal fan for mining according to claim 1, characterized in that: The impeller assembly (1) is provided with a mounting bracket (18) on its side, and the device is fixed in the required position by the mounting bracket (18).

4. A dust removal fan for mining according to claim 3, characterized in that: A drive motor (19) is mounted on the side of the mounting bracket (18), and a transmission belt assembly (20) is mounted on the output end of the drive motor (19).

5. A dust removal fan for mining according to claim 4, characterized in that: One end of the transmission belt assembly (20) is provided with an output shaft (21), and the output shaft (21) is rotatably mounted on the mounting bracket (18). One end of the output shaft (21) is connected to the impeller assembly (1).

6. A dust removal fan for mining according to claim 1, characterized in that: A connecting plate (22) is installed at the bottom of the side wall of the card tube (8), and the connecting plate (22) is fixedly installed on the throttle (6).

7. A dust removal fan for mining according to claim 1, characterized in that: A tension spring (23) is installed between one end of the insertion rod (10) and the inner wall of the locking tube (8), and the tension spring (23) pulls the insertion rod (10) away from the locking rod (9).

8. A dust removal fan for mining according to claim 2, characterized in that: The rotating block (13) is provided with a linkage groove (24), and the linkage block (17) can extend into the linkage groove (24) to make the rotating block (13) rotate on the winding rod (14).

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