A connecting mechanism of a bucket wheel drive reduction gear and a bucket wheel shaft

Abstract

The utility model relates to the field of bucket wheel stacker-reclaimer, especially relates to a connecting mechanism of bucket wheel drive speed reducer and bucket wheel shaft, including speed reducer, bucket wheel shaft sets up in one side of speed reducer, first clamping plate, sets up in the surface of bucket wheel shaft, second clamping plate, sets up in the surface of bucket wheel shaft and is located first clamping plate one side, bolt, passes in first clamping plate and second clamping plate, the nut is connected with screw thread on bolt surface, the utility model has the beneficial effect as follows: the corresponding installation side of bucket wheel shaft is accurately butt-jointed to speed reducer, and the stable connection of bucket wheel shaft and speed reducer can be realized with cooperation first clamping plate, second clamping plate, bolt and bolt, through the above-mentioned assembly design not only can effectively release the shear force and torsion that produce in the operation process, can make bolt need not bear shear load simultaneously, further prevent speed reducer from sliding off from bucket wheel shaft, and moreover, the maintenance operation is very convenient, only needs to disassemble bolt to quickly take down speed reducer and maintain.

Description

Technical Field

[0001] This utility model relates to the field of bucket wheel stacker-reclaimers, and in particular to a connection mechanism between a bucket wheel drive reducer and a bucket wheel shaft. Background Technology

[0002] Currently, over 90% of bucket wheel stacker-reclaimers are driven by motors and reducers. The connection between the reducer output and the bucket wheel shaft is quite unique. Because the bucket wheel shaft is at a certain angle to the horizontal, the reducer is suspended on the bucket wheel shaft via a torque arm and the output end. The connection method at this point is particularly important.

[0003] In the existing technology, the reducer and the bucket wheel shaft are mostly connected by spline connection, which is usually connected by clamping bolts. Normally, the bolts are not subjected to shear force, and the clamping plate can slide in the groove to release stress. However, over time, due to the accumulation of dust on site, the clamping plate is prone to jamming, which causes the bolts to be sheared off, resulting in the reducer sliding off the bucket wheel shaft. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a connection mechanism between the bucket wheel drive reducer and the bucket wheel shaft. This addresses the problem mentioned in the background technology that the reducer and bucket wheel shaft are mostly connected by splines, which, with the increase of usage time, are prone to jamming due to the accumulation of dust on site, causing the bolts to be sheared off, resulting in the reducer sliding off the bucket wheel shaft.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a connection mechanism between a bucket wheel drive reducer and a bucket wheel shaft, comprising: Gearbox; The bucket wheel shaft is located on one side of the reducer. The first clamping plate is fitted onto the surface of the bucket wheel shaft; The second clamping plate is fitted onto the surface of the bucket wheel shaft, located on one side of the first clamping plate; Bolts are inserted into the first and second clamping plates, and nuts are threaded onto the surface of the bolts. A protective sleeve is provided on the surface of the first clamping plate, located outside the nut.

[0006] Optionally, a plurality of connecting rings are fixedly connected to the surface of the first card plate, and a limiting groove is formed on the surface of the connecting ring. A plurality of sliding grooves are formed on the inner side of the protective sleeve. A return spring is fixedly connected to the inner wall of the sliding groove. A slide block is fixedly connected to one end of the return spring. The slide block and the sliding groove are slidably connected. A limiting block is fixedly connected to the side of the slide block near the connecting ring.

[0007] Optionally, a positioning groove is provided on the surface of the connecting ring on one side of the limiting groove, and a positioning block is fixedly connected to the inner wall of the protective sleeve on one side of the slide.

[0008] Optionally, the limiting groove is in the shape of a broken line, which includes a first inclined section, a horizontal transition section, a second inclined section and a third inclined section in sequence, with smooth connections between each section, and the end of the limiting block near the connecting ring is triangular.

[0009] Optionally, the slide groove is T-shaped, and the end of the slide block near the slide groove is configured to fit the contour of the slide groove.

[0010] Optionally, a sealing ring is fitted onto the surface of the connecting ring, and the sealing ring fits into the protective sleeve.

[0011] Optionally, a grip ring is fixedly connected to the surface of the protective cover, and the outer side of the grip ring is provided with anti-slip texture.

[0012] Optionally, a washer is fitted on the surface of the bolt, and the inner diameter of the washer is adapted to the outer diameter of the bolt shank.

[0013] The beneficial effects of this utility model are as follows: By precisely aligning the bucket wheel shaft to the corresponding mounting side of the reducer, and cooperating with the first clamping plate, the second clamping plate, bolts, and bolts, a stable connection between the bucket wheel shaft and the reducer can be achieved. Through the above assembly design, not only can the free clamping plate formed by the combination of the first clamping plate and the second clamping plate slide flexibly in the clamping groove, effectively releasing the shear force and torque generated during operation, but it also allows the bolts to be free from shear load, avoiding bolt breakage and thus preventing the reducer from slipping off the bucket wheel shaft, ensuring the safe operation of the equipment. Moreover, the maintenance operation is extremely convenient. Only the bolts need to be removed to quickly remove the reducer for maintenance, greatly shortening downtime for maintenance and improving equipment operation and maintenance efficiency. The protective sleeve is placed on the surface of the bolt, and with the help of the sliding groove, return spring, slide block, limit block and limit groove, the protective sleeve can be fixed to the outside of the connecting ring. The protective sleeve can completely cover the shank of the bolt and the nut, thereby effectively isolating external impurities such as dust and moisture, and preventing thread corrosion and jamming. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of the connection mechanism between the bucket wheel drive reducer and the bucket wheel shaft according to the present invention; Figure 2 This is an enlarged structural diagram of point A of the connection mechanism between the bucket wheel drive reducer and the bucket wheel shaft according to this utility model; Figure 3This is a cross-sectional view of the protective sleeve structure of the connection mechanism between the bucket wheel drive reducer and the bucket wheel shaft according to this utility model. Figure 4 This is a schematic diagram of the connecting ring structure of the connection mechanism between the bucket wheel drive reducer and the bucket wheel shaft according to this utility model; Figure 5 This is a schematic diagram of the sliding block structure of the connection mechanism between the bucket wheel drive reducer and the bucket wheel shaft according to the present invention; Figure label: 1. Gear reducer; 1. Bucket wheel axle; 2. First clamping plate; 301. Connecting ring; 3011. Limiting groove; 3012. Positioning groove; 302. Sealing ring; 3. Second pallet; 4. Bolts; 501. Nuts; 502. Washers; 5. Protective cover; 601. Slide groove; 602. Return spring; 603. Slide block; 604. Limit block; 605. Positioning block; 606. Grip ring. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] Please see Figures 1 to 3 This utility model provides a technical solution: a connection mechanism between a bucket wheel drive reducer and a bucket wheel shaft, comprising: a reducer 1, a bucket wheel shaft 2 disposed on one side of the reducer 1, a first clamping plate 3 sleeved on the surface of the bucket wheel shaft 2, a second clamping plate 4 sleeved on the surface of the bucket wheel shaft 2 on one side of the first clamping plate 3, a bolt 5 passing through the first clamping plate 3 and the second clamping plate 4, a nut 501 threadedly connected to the surface of the bolt 5, and a protective sleeve 6 disposed on the surface of the first clamping plate 3 outside the nut 501.

[0017] First, precisely align the bucket wheel shaft 2 to the corresponding mounting side of the reducer 1. Then, symmetrically place the first clamping plate 3 and the second clamping plate 4 onto the designated mounting positions of the bucket wheel shaft 2, ensuring they precisely fit into the grooves on the surface of the bucket wheel shaft 2. Next, insert the bolts 5 sequentially into the first clamping plate 3 and the second clamping plate 4. Finally, screw the nut 501 onto the exposed end of the bolt 5 and tighten it to the specified preload. This achieves a stable connection between the bucket wheel shaft 2 and the reducer 1. This assembly design not only allows the free clamping plates formed by the combination of the first clamping plate 3 and the second clamping plate 4 to slide flexibly within the grooves, effectively releasing the shearing and torque forces generated during operation, but also prevents the bolts 5 from bearing shear loads, thus avoiding bolt breakage and preventing the reducer 1 from slipping off the bucket wheel shaft 2, ensuring safe equipment operation. Furthermore, maintenance is extremely convenient; simply removing the bolts 5 allows for quick removal of the reducer 1 for maintenance, significantly shortening downtime for maintenance and improving equipment operation and maintenance efficiency. Finally, the protective sleeve 6 is placed on the surface of the bolt 5, which can completely cover the shank of the bolt 5 and the nut 501, thereby effectively isolating external impurities such as dust and moisture, and preventing thread corrosion and jamming.

[0018] Preferably, a washer 502 is fitted on the surface of the bolt 5, and the inner diameter of the washer 502 is adapted to the outer diameter of the bolt shank 5.

[0019] Gasket 502 can use its elasticity to compensate for the risk of loosening caused by vibration, thereby improving the fastening reliability of the connection structure.

[0020] Please see Figures 2 to 5 This utility model provides a technical solution: a plurality of connecting rings 301 are fixedly connected to the surface of the first card plate 3, and a limiting groove 3011 is formed on the surface of the connecting ring 301. A plurality of sliding grooves 601 are formed on the inner side of the protective sleeve 6. A return spring 602 is fixedly connected to the inner wall of the sliding groove 601. A slide block 603 is fixedly connected to one end of the return spring 602. The slide block 603 and the sliding groove 601 are slidably connected. A limiting block 604 is fixedly connected to the side of the slide block 603 near the connecting ring 301. The limiting groove 3011 is in the shape of a broken line and includes a first inclined section, a horizontal transition section, a second inclined section and a third inclined section in sequence. The sections are smoothly connected. The end of the limiting block 604 near the connecting ring 301 is triangular.

[0021] When the protective sleeve 6 is put onto the surface of the bolt 5, the limiting block 604 will be squeezed by the first inclined section of the limiting groove 3011, which will cause the slide block 603 to slide along the slide groove 601 and force the return spring 602 to deform. As the protective sleeve 6 continues to move, the limiting block 604 will be inserted between the second and third inclined sections of the limiting groove 3011 under the elastic force of the return spring 602, thus fixing the protective sleeve 6 to the outside of the connecting ring 301. The protective sleeve 6 can completely cover the shank of the bolt 5 and the nut 501, thereby effectively isolating external impurities such as dust and moisture, and preventing thread corrosion and jamming.

[0022] Furthermore, the slide 601 is T-shaped, and the end of the slide block 603 near the slide 601 is set to a shape that matches the contour of the slide 601.

[0023] The slide 601 is T-shaped and the end of the slide block 603 near the slide 601 is set to a shape that matches the contour of the slide 601 to prevent the slide block 603 from dislodging from the slide 601.

[0024] Preferably, a positioning groove 3012 is provided on the surface of the connecting ring 301 on one side of the limiting groove 3011, and a positioning block 605 is fixedly connected to the inner wall of the protective sleeve 6 on one side of the slide block 603.

[0025] By inserting the positioning block 605, which is fixed to the inner wall of the protective sleeve 6, into the positioning groove 3012 opened on the surface of the connecting ring 301, the protective sleeve 6 and the connecting ring 301 can be accurately positioned, thereby ensuring that the protective sleeve 6 is quickly and accurately put into place and avoiding protection failure caused by installation misalignment.

[0026] Preferably, a sealing ring 302 is fitted on the surface of the connecting ring 301, and the sealing ring 302 fits into the protective sleeve 6.

[0027] The sealing ring 302 can fill the gap between the protective sleeve 6 and the connecting ring 301, thereby enhancing the sealing performance and further preventing the intrusion of impurities such as dust, moisture, and salt spray.

[0028] Preferably, a grip ring 606 is fixedly connected to the surface of the protective cover 6, and the outer side of the grip ring 606 is provided with anti-slip texture.

[0029] The grip ring 606 makes it easy to hold the protective sleeve 6, and the anti-slip texture increases the friction between the hand and the protective sleeve 6, preventing the hand from slipping during operation.

[0030] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A connection mechanism between a bucket wheel drive reducer and a bucket wheel shaft, characterized in that, include: Speed ​​reducer (1); The bucket wheel shaft (2) is located on one side of the reducer (1); The first card plate (3) is fitted onto the surface of the bucket wheel shaft (2); The second clamping plate (4) is sleeved on the surface of the bucket wheel shaft (2) and located on one side of the first clamping plate (3); Bolt (5) is inserted into the first clamping plate (3) and the second clamping plate (4), and a nut (501) is threaded onto the surface of the bolt (5). The protective sleeve (6) is located on the surface of the first card plate (3) outside the nut (501).

2. The connection mechanism between the bucket wheel drive reducer and the bucket wheel shaft according to claim 1, characterized in that, The first card plate (3) has several connecting rings (301) fixedly connected to its surface. The connecting rings (301) have a limiting groove (3011) on their surface. The protective sleeve (6) has several sliding grooves (601) on its inner side. The inner wall of the sliding groove (601) is fixedly connected to a return spring (602). One end of the return spring (602) is fixedly connected to a slide block (603). The slide block (603) and the sliding groove (601) are slidably connected. The side of the slide block (603) near the connecting rings (301) is fixedly connected to a limiting block (604).

3. The connection mechanism between the bucket wheel drive reducer and the bucket wheel shaft according to claim 2, characterized in that, The surface of the connecting ring (301) is provided with a positioning groove (3012) on one side of the limiting groove (3011), and the inner wall of the protective sleeve (6) is fixedly connected with a positioning block (605) on one side of the slide (603).

4. The connection mechanism between the bucket wheel drive reducer and the bucket wheel shaft according to claim 2, characterized in that, The limiting groove (3011) is in the shape of a broken line, which includes a first inclined section, a horizontal transition section, a second inclined section and a third inclined section in sequence. The sections are smoothly connected. The end of the limiting block (604) near the connecting ring (301) is triangular.

5. The connection mechanism between the bucket wheel drive reducer and the bucket wheel shaft according to claim 2, characterized in that, The slide (601) is T-shaped, and the end of the slide block (603) near the slide (601) is set to a shape that matches the contour of the slide (601).

6. The connection mechanism between the bucket wheel drive reducer and the bucket wheel shaft according to claim 2, characterized in that, A sealing ring (302) is fitted on the surface of the connecting ring (301), and the sealing ring (302) is in contact with the protective sleeve (6).

7. The connection mechanism between the bucket wheel drive reducer and the bucket wheel shaft according to claim 2, characterized in that, The protective sleeve (6) has a grip ring (606) fixedly connected to its surface, and the grip ring (606) has anti-slip texture on its outer side.

8. The connection mechanism between the bucket wheel drive reducer and the bucket wheel shaft according to claim 1, characterized in that, A washer (502) is fitted on the surface of the bolt (5), and the inner diameter of the washer (502) is adapted to the outer diameter of the bolt (5) shank.

Images