A chain tension adjustment device for a bucket elevator

Abstract

This utility model provides a chain tension adjustment device for a bucket elevator, including a bucket elevator and a chain tension adjustment structure mounted on the bucket elevator; and a rotating structure mounted on the chain tension adjustment structure. Tension adjustment is achieved by rotating a rotating disc below the bucket elevator to move downwards. A pressure sensor detects the transmitted tension force, facilitating accurate adjustment of the bucket elevator chain tension and preventing excessive or insufficient chain tension. The fixing bolts effectively secure the chain tension adjustment structure, preventing changes in tension due to the rotation of the bevel gear during operation. Rotating the rotating block moves the fixing bolts, allowing the limiting structure to effectively fix and restrict the rotating plate at any rotation angle.

Description

Technical Field

[0001] This utility model relates to the field of bucket elevator technology, and in particular to a chain tension adjustment device for a bucket elevator. Background Technology

[0002] A bucket elevator is an industrial device that continuously and vertically transports powdery, granular, and small lump materials using buckets. The buckets are fixed in place by a traction mechanism (ring chain, plate chain, or belt) to lift the material. Its core structure includes a traction mechanism, buckets, a drive unit, and a sealed housing. It is suitable for use in building materials, coal, and chemical industries, and commonly handles materials such as cement, coal powder, and limestone. During long-term operation or temperature changes, the chain in the traction mechanism of a bucket elevator may elongate. To prevent insufficient tension in the traction mechanism, bucket elevators are typically equipped with a chain tension adjustment device.

[0003] Conventional chain tensioning devices cannot accurately determine whether the tension adjustment is appropriate, relying solely on the experience of the adjuster. This can lead to the tension being set too tight or too loose, affecting the operation of the bucket elevator. Therefore, how to accurately adjust the chain tension of a bucket elevator is a crucial issue that needs to be addressed in the design of its chain tensioning device. Utility Model Content

[0004] This invention provides a chain tension adjustment device for bucket elevators to solve the problem of not being able to accurately determine whether the tension of the traction mechanism is appropriate.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides a chain tension adjustment device for a bucket elevator, including a bucket elevator and further comprising:

[0007] A chain tension adjustment structure is installed on the bucket elevator;

[0008] A rotating structure is provided on the chain tension adjustment structure;

[0009] A limiting structure is provided above the rotating structure to fix and restrict the rotation of the rotating structure.

[0010] Preferably, sliding grooves are provided on the side walls on both sides of the bucket elevator. The sliding grooves are located on both sides of the rotating wheel below the bucket elevator, and the rotating shaft of the rotating wheel below the bucket elevator is slidably connected in the sliding grooves.

[0011] Preferably, a fixed housing is fixedly connected to the side wall of the inner ring of the bucket elevator housing, and a display is fixedly connected to the side wall of the front of the bucket elevator.

[0012] Preferably, the chain tension adjustment structure includes a first fixed plate, a second fixed plate, a first threaded rod, a first bevel gear, and a first connecting rod. The first connecting rod is rotatably connected to the side wall at the bottom of the fixed housing. The first bevel gear is fixedly connected to the top of the first connecting rod, and the first threaded rod is fixedly connected to the bottom of the first connecting rod. The bottom of the first threaded rod is rotatably connected to the side wall of the inner ring of the bucket elevator. The second fixed plate is threadedly connected to the first threaded rod. The second fixed plate is slidably connected to the side wall of the inner ring of the bucket elevator. Two first fixed plates are fixedly connected to the bottom side wall of the second fixed plate. The other ends of the two first fixed plates are rotatably connected to the two ends of the rotating shaft of the rotating wheel below the bucket elevator.

[0013] In this technical solution, the rotation of the bevel gear drives the rotation of the connecting rod, which in turn drives the rotation of the threaded rod. The rotation of the threaded rod causes the second fixed plate to descend, which in turn drives the two fixed plates to descend. The two fixed plates then cause the rotating wheel below the bucket elevator to move downward for tension adjustment.

[0014] Preferably, a pressure sensor is fixedly installed inside the top side wall of the first fixing plate, and an infrared rangefinder is fixedly connected to the top side wall of the second fixing plate. The pressure sensor and the infrared rangefinder are electrically connected to the display.

[0015] In this technical solution, during the process of adjusting the tension of the chain by the movement of the rotating wheel, the force is transmitted in the reverse direction to the first fixed plate, and then from the first fixed plate to the second fixed plate. The pressure sensor is set between the first and second fixed plates to detect the transmitted force and display it on the display. The operator can accurately adjust the tension by observing the value on the display.

[0016] Preferably, the rotating structure includes a rotating disk, a rotating block, a second bevel gear, a rotating rod, and a rotating plate. The rotating block is rotatably connected to the side wall of the fixed housing. One end of the rotating block is fixedly connected to the rotating disk, and the other end of the rotating block is fixedly connected to the rotating rod. The other end of the rotating rod passes through the side wall of the fixed housing and is fixedly connected to the rotating plate. A second bevel gear is fixedly connected to the side wall of the rotating rod.

[0017] In this technical solution, the rotating rod is rotatably connected to the side wall of the fixed housing. Rotating the rotating disk drives the rotating block to rotate, the rotating block drives the rotating rod to rotate, and the rotating rod drives the bevel gear II and the rotating plate to rotate.

[0018] Preferably, the second bevel gear meshes with the first bevel gear.

[0019] In this technical solution, the rotation of bevel gear two drives the rotation of bevel gear one.

[0020] Preferably, threaded grooves are provided at equal intervals on the side wall of the rotating plate.

[0021] Preferably, the limiting structure includes a movable block, a second threaded rod, a rotating handle, a fixed block, a second connecting rod, and a fixing bolt. The second threaded rod is rotatably connected to the top side wall of the fixed housing. The movable block is threadedly connected to the side wall of the second threaded rod. The movable block is slidably connected to the side wall of the inner ring of the bucket elevator. The rotating handle is fixedly connected to the top of the second threaded rod. The fixed block is fixedly connected to the bottom side wall of the movable block. One end of the second connecting rod is rotatably connected to the side wall of the fixed block. The other end of the second connecting rod is threadedly connected to the fixing bolt.

[0022] Preferably, the fixing bolt and the threaded groove cooperate with each other.

[0023] In this technical solution, the fixing bolt is threaded into the corresponding threaded groove on the rotating plate. Since the length of the connecting rod is fixed, the rotation of the rotating plate can be restricted by the connecting rod. The inability of the rotating plate to rotate causes the bevel gear to be synchronously restricted.

[0024] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0025] The positive and progressive effects of this utility model are as follows:

[0026] 1. By rotating the rotating disc, the disc drives the second bevel gear to rotate, which in turn drives the first bevel gear to rotate. The first bevel gear drives the first threaded rod to rotate, which in turn drives the second fixed plate to descend. The second fixed plate then moves the rotating wheel below the bucket elevator downwards for tension adjustment. A pressure sensor is installed between the first and second fixed plates to detect the transmitted tension force and display it on a monitor. The operator can accurately adjust the tension by observing the values ​​on the monitor, thus ensuring accurate adjustment of the bucket elevator chain tension and preventing the chain from being too tight or too loose.

[0027] 2. By threading the fixing bolt into the corresponding threaded groove on the rotating plate, the rotation of the rotating plate can be restricted by the fixed length of the connecting rod 2. The rotating plate cannot rotate, so the bevel gear 2 is synchronously restricted, and the bevel gear 1 that meshes with the bevel gear 2 cannot rotate. Thus, the movement of the fixing plate 1 is fixed and restricted, which makes it easier to fix and restrict the chain tension adjustment structure and avoid changes in tension caused by the rotation of the bevel gear 1 during operation.

[0028] 3. By rotating the rotating block, the rotating block drives the threaded rod two to rotate, and the threaded rod two drives the moving block to move up and down. The moving block drives the fixing bolt to move and adjust through the connecting rod two. At the same time, the connecting rod two can be rotated at a certain angle so that the fixing bolt corresponds with the adjacent thread groove, thereby achieving the purpose of fixing the rotating plate. This makes it easier for the limiting structure to fix and limit the rotating plate at any angle of rotation. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0030] Figure 2 This is a schematic diagram of the overall internal three-dimensional structure of this utility model.

[0031] Figure 3 This is a three-dimensional structural diagram of the tension adjustment device of this utility model.

[0032] Figure 4 This is a three-dimensional structural diagram of the chain tension adjustment structure of this utility model.

[0033] Figure 5 This is a three-dimensional structural diagram of the rotating structure of this utility model.

[0034] Figure 6 This is a three-dimensional structural diagram of the limiting structure of this utility model.

[0035] Explanation of reference numerals in the attached figures

[0036] 1. Bucket Elevator; 2. Sliding Groove; 3. Chain Tension Adjustment Structure; 301. Fixed Plate 1; 302. Fixed Plate 2; 303. Threaded Rod 1; 304. Bevel Gear 1; 305. Connecting Rod; 311. Pressure Sensor; 312. Infrared Rangefinder; 4. Rotating Structure; 401. Rotating Disc; 402. Rotating Block; 403. Bevel Gear 2; 404. Rotating Rod; 405. Rotating Plate; 411. Threaded Groove; 5. Display; 6. Limiting Structure; 601. Moving Block; 602. Threaded Rod 2; 603. Rotating Handle; 604. Fixed Block; 605. Connecting Rod; 606. Fixing Bolt; 7. Fixed Housing. Detailed Implementation

[0037] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0038] like Figure 1-6 As shown, a chain tensioning adjustment device for a bucket elevator includes a bucket elevator 1 and further includes:

[0039] Chain tension adjustment structure 3, which is installed on bucket elevator 1;

[0040] Rotating structure 4, which is mounted on chain tension adjustment structure 3;

[0041] A limiting structure 6 is disposed above the rotating structure 4, and the limiting structure 6 fixes and restricts the rotation of the rotating structure 4.

[0042] The bucket elevator 1 has sliding grooves 2 on its side walls on both sides. The sliding grooves 2 are located on both sides of the rotating wheel below the bucket elevator 1, and the rotating shaft of the rotating wheel below the bucket elevator 1 is slidably connected in the sliding grooves 2.

[0043] A fixed housing 7 is fixedly connected to the side wall of the inner ring of the bucket elevator 1, and a display 5 is fixedly connected to the side wall of the front of the bucket elevator 1.

[0044] The chain tension adjustment structure 3 includes a first fixing plate 301, a second fixing plate 302, a first threaded rod 303, a first bevel gear 304, and a first connecting rod 305. The first connecting rod 305 is rotatably connected to the side wall at the bottom of the fixed housing 7. The first bevel gear 304 is fixedly connected to the top of the first connecting rod 305, and the first threaded rod 303 is fixedly connected to the bottom of the first connecting rod 305. The bottom of the first threaded rod 303 is rotatably connected to the side wall of the inner ring of the bucket elevator 1. The second fixing plate 302 is threadedly connected to the first threaded rod 303. The second fixing plate 302 is slidably connected to the side wall of the inner ring of the bucket elevator 1. Two first fixing plates 301 are fixedly connected to the bottom side wall of the second fixing plate 302. The other ends of the two first fixing plates 301 are rotatably connected to the two ends of the rotating shaft of the rotating wheel below the bucket elevator 1.

[0045] The rotation of bevel gear 304 drives the rotation of connecting rod 305, which in turn drives the rotation of threaded rod 303. The rotation of threaded rod 303 causes fixed plate 302 to descend, which in turn causes two fixed plates 301 to descend. The two fixed plates 301 then cause the rotating wheel below the bucket elevator 1 to move downward for tension adjustment.

[0046] A pressure sensor 311 is fixedly installed inside the top side wall of the first fixing plate 301, and an infrared rangefinder 312 is fixedly connected to the top side wall of the second fixing plate 302. The pressure sensor 311 and the infrared rangefinder 312 are electrically connected to the display 5.

[0047] During the process of adjusting the tension of the chain by rotating the wheel, the force is transmitted in the reverse direction to the first fixed plate 301, and then from the first fixed plate 301 to the second fixed plate 302. The pressure sensor 311 is set between the first fixed plate 301 and the second fixed plate 302, which can detect the transmitted force and display it on the display 5. The operator can accurately adjust the tension by observing the value on the display 5.

[0048] The rotating structure 4 includes a rotating disk 401, a rotating block 402, a second bevel gear 403, a rotating rod 404, and a rotating plate 405. The rotating block 402 is rotatably connected to the side wall of the fixed housing 7. One end of the rotating block 402 is fixedly connected to the rotating disk 401, and the other end of the rotating block 402 is fixedly connected to the rotating rod 404. The other end of the rotating rod 404 passes through the side wall of the fixed housing 7 and is fixedly connected to the rotating plate 405. The second bevel gear 403 is fixedly connected to the side wall of the rotating rod 404.

[0049] The rotating rod 404 is rotatably connected to the side wall of the fixed housing 7. Rotating the rotating disk 401 causes the rotating block 402 to rotate, which in turn causes the rotating rod 404 to rotate. The rotating rod 404 then causes the bevel gear 403 and the rotating plate 405 to rotate.

[0050] The bevel gear 403 meshes with the bevel gear 304.

[0051] The rotation of bevel gear 403 drives the rotation of bevel gear 304.

[0052] The rotating plate 405 has threaded grooves 411 evenly spaced on its side wall.

[0053] The limiting structure 6 includes a movable block 601, a threaded rod 602, a rotating handle 603, a fixed block 604, a connecting rod 605, and a fixing bolt 606. The threaded rod 602 is rotatably connected to the top side wall of the fixed housing 7. The movable block 601 is threadedly connected to the side wall of the threaded rod 602. The movable block 601 is slidably connected to the side wall of the inner ring of the bucket elevator 1. The rotating handle 603 is fixedly connected to the top of the threaded rod 602. The fixed block 604 is fixedly connected to the bottom side wall of the movable block 601. One end of the connecting rod 605 is rotatably connected to the side wall of the fixed block 604. The other end of the connecting rod 605 is threadedly connected to the fixing bolt 606.

[0054] The fixing bolt 606 and the threaded groove 411 cooperate with each other.

[0055] The fixing bolt 606 is threaded into the corresponding threaded groove 411 on the rotating plate 405. Since the length of the connecting rod 605 is fixed, the rotation of the rotating plate 405 can be restricted by the connecting rod 605. The rotating plate 405 cannot rotate, so the bevel gear 403 is synchronously restricted.

[0056] In use, all electrical components mentioned in this application are externally connected to a power supply and control switch. When adjusting the chain tension, rotating the rotating disk 401 causes the rotating block 402 to rotate, which in turn causes the rotating rod 404 to rotate. The rotating rod 404 then causes the bevel gear 403 and the rotating plate 405 to rotate. The bevel gear 403 rotates, causing the bevel gear 304 to rotate. The bevel gear 304 then rotates the connecting rod 305, which in turn rotates the threaded rod 303. The threaded rod 303 then causes the fixed plate 302 to descend, which in turn causes the two fixed plates 301 to descend. The two fixed plates 301 then cause the rotating wheel below the bucket elevator 1 to move downwards for tension adjustment.

[0057] During the process of adjusting the tension of the chain by rotating the wheel, the force is transmitted in the reverse direction to the first fixed plate 301, and then from the first fixed plate 301 to the second fixed plate 302. The pressure sensor 311 is set between the first fixed plate 301 and the second fixed plate 302 to detect the transmitted force and display it on the display 5. The operator can accurately adjust the tension by observing the value on the display 5, which facilitates accurate adjustment of the chain tension of the bucket elevator 1 and avoids the chain being too tight or too loose. The infrared distance measurement can detect the distance moved during tension adjustment. If the distance moved is large but the required tension pressure is still not reached, the chain inside the bucket elevator 1 needs to be inspected to prevent chain breakage or other issues that could lead to poor tension.

[0058] After the tension adjustment is completed, the fixing bolt 606 is threaded into the corresponding threaded groove 411 on the rotating plate 405. Since the length of the connecting rod 605 is fixed, the rotation of the rotating plate 405 can be restricted by the connecting rod 605. The rotating plate 405 cannot rotate, so the bevel gear 403 is synchronously restricted. The bevel gear 304 that meshes with the bevel gear 403 cannot rotate, so the movement of the fixing plate 301 is fixed and restricted. This makes it easier to fix and restrict the chain tension adjustment structure 3, and avoid the tension from changing due to the rotation of the bevel gear 304 during the operation.

[0059] If the fixing bolt 606 cannot properly align with the threaded groove 411, the rotating handle can be rotated. Rotating the handle will cause the threaded rod 602 to rotate, and the threaded rod 602 will cause the moving block 601 to move up and down. The moving block 601 will move and adjust the fixing bolt 606 through the connecting rod 605. At the same time, the connecting rod 605 can be rotated at a certain angle so that the fixing bolt 606 aligns with the adjacent threaded groove 411, thereby achieving the purpose of fixing the rotating plate 405.

[0060] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A chain tension adjustment device for a bucket elevator, comprising a bucket elevator (1), characterized in that, Also includes: Chain tension adjustment structure (3), said chain tension adjustment structure (3) is installed on bucket elevator (1); Rotating structure (4), the rotating structure (4) is set on chain tension adjustment structure (3); A limiting structure (6) is provided above the rotating structure (4), and the limiting structure (6) fixes and restricts the rotation of the rotating structure (4).

2. The chain tension adjustment device for a bucket elevator as described in claim 1, characterized in that: The bucket elevator (1) has sliding grooves (2) on its side walls. The sliding grooves (2) are located on both sides of the rotating wheel below the bucket elevator (1). The rotating shaft of the rotating wheel below the bucket elevator (1) is slidably connected in the sliding grooves (2).

3. The chain tension adjustment device for a bucket elevator as described in claim 1, characterized in that: A fixed housing (7) is fixedly connected to the side wall of the inner ring of the bucket elevator (1), and a display (5) is fixedly connected to the side wall of the front of the bucket elevator (1).

4. The chain tension adjustment device for a bucket elevator as described in claim 1, characterized in that: The chain tension adjustment structure (3) includes a fixing plate one (301), a fixing plate two (302), a threaded rod one (303), a bevel gear one (304), and a connecting rod one (305). The connecting rod one (305) is rotatably connected to the side wall at the bottom of the fixed housing (7). The top of the connecting rod one (305) is fixedly connected to the bevel gear one (304), and the bottom of the connecting rod one (305) is fixedly connected to the threaded rod one (303). The bottom of the threaded rod (303) is rotatably connected to the side wall of the inner ring of the bucket elevator (1). The threaded rod (303) is threaded with a fixing plate (302). The fixing plate (302) is slidably connected to the side wall of the inner ring of the bucket elevator (1). Two fixing plates (301) are fixedly connected to the bottom side wall of the fixing plate (302). The other ends of the two fixing plates (301) are rotatably connected to the two ends of the rotating shaft of the rotating wheel below the bucket elevator (1).

5. The chain tension adjustment device for a bucket elevator as described in claim 4, characterized in that: A pressure sensor (311) is fixedly installed inside the top side wall of the first fixing plate (301), and an infrared rangefinder (312) is fixedly connected to the top side wall of the second fixing plate (302). The pressure sensor (311) and the infrared rangefinder (312) are electrically connected to the display (5).

6. The chain tension adjustment device for a bucket elevator as described in claim 1, characterized in that: The rotating structure (4) includes a rotating disk (401), a rotating block (402), a second bevel gear (403), a rotating rod (404), and a rotating plate (405). The rotating block (402) is rotatably connected to the side wall of the fixed housing (7). One end of the rotating block (402) is fixedly connected to the rotating disk (401), and the other end of the rotating block (402) is fixedly connected to the rotating rod (404). The other end of the rotating rod (404) passes through the side wall of the fixed housing (7) and is fixedly connected to the rotating plate (405). The second bevel gear (403) is fixedly connected to the side wall of the rotating rod (404).

7. The chain tension adjustment device for a bucket elevator as described in claim 6, characterized in that: The second bevel gear (403) meshes with the first bevel gear (304).

8. The chain tension adjustment device for a bucket elevator as described in claim 6, characterized in that: The rotating plate (405) has threaded grooves (411) evenly spaced on its side wall.

9. The chain tension adjustment device for a bucket elevator as described in claim 1, characterized in that: The limiting structure (6) includes a moving block (601), a threaded rod two (602), a rotating handle (603), a fixed block (604), a connecting rod two (605), and a fixing bolt (606). The threaded rod two (602) is rotatably connected to the top side wall of the fixed housing (7). The moving block (601) is threadedly connected to the side wall of the threaded rod two (602). The moving block (601) is slidably connected to the side wall of the inner ring of the bucket elevator (1). The rotating handle (603) is fixedly connected to the top of the threaded rod two (602). The fixed block (604) is fixedly connected to the bottom side wall of the moving block (601). One end of the connecting rod two (605) is rotatably connected to the side wall of the fixed block (604). The other end of the connecting rod two (605) is threadedly connected to the fixing bolt (606).

10. The chain tension adjustment device for a bucket elevator as described in claim 9, characterized in that: The fixing bolt (606) and the threaded groove (411) cooperate with each other.

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