Steel wire lifting belt hopper anti-falling bolt

By improving the thread fit and self-locking structure, the problem of loosening and falling off the connecting bolts of the wire rope conveyor belt hopper was solved, achieving a stable connection between the hopper and the wire rope conveyor belt, ensuring production safety and efficiency.

CN223648276UActive Publication Date: 2025-12-09WEIFANG DABEN RUBBER PLASTIC TECH CO LTD
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Patent Information

Application Number
CN202520331358.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2025-12-09
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

The existing steel wire conveyor belt hopper connecting bolts are prone to loosening and falling off during long-term use, leading to material leakage and safety hazards.

Method used

The structure uses a threaded stud and nut, combined with the self-locking function of the wedge block and wedge groove, the high-strength material of the locking plate, and the anti-slip limit design to enhance the connection stability between the hopper and the wire rope lifting belt.

Benefits of technology

It effectively prevents nuts from loosening and falling off, improves the connection reliability between the hopper and the wire rope conveyor belt, avoids material leakage and safety hazards, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a steel wire lifting belt hopper anti-falling bolt, which relates to the technical field of material lifting equipment and comprises a stud and a nut which are in threaded fit, one end of the stud is provided with a cylindrical smooth section, one end of the outer side of the smooth section is provided with a nut, the outer diameter of the smooth section is larger than that of the stud, and a first gasket is arranged between the nut and a hopper. A plurality of clamping grooves are formed in the upper portion of the smooth section, and a plurality of clamping protrusions matched with the clamping grooves are arranged on the inner side of the first gasket. A locking piece is arranged on the outer side of the nut, a plurality of blocking grooves are formed in the inner wall of the locking piece, blocking protrusions matched with the blocking grooves are arranged on the outer side of the nut, a plurality of inserting rods are arranged on the lower portion of the locking piece, and inserting grooves matched with the inserting rods are formed in the upper portion of the first gasket. When the nut tends to loosen, the locking piece can limit rotation of the nut, the nut is effectively prevented from loosening and falling off, reliability of hopper connection is guaranteed, and material leakage and potential safety hazards are avoided.
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Description

Technical Field

[0001] This utility model relates to the field of material lifting equipment technology, specifically to an anti-detachment bolt for a steel wire lifting belt hopper. Background Technology

[0002] In material lifting systems, wire rope conveyor belts with buckets are commonly used conveying components. The buckets are bolted to the wire rope conveyor belt to achieve stable material lifting. However, existing wire rope conveyor belt bucket connecting bolts have encountered numerous problems during long-term use.

[0003] Currently, traditional connecting bolts rely solely on the tightening force of the nuts to secure the hopper. During equipment operation, due to frequent vibrations of the wire rope conveyor belt and changes in the weight of the material inside the hopper, the nuts are prone to loosening or even falling off. Once the nuts fall off, the hopper will separate from the wire rope conveyor belt, which will not only lead to material leakage and affect production efficiency, but may also pose serious safety hazards to the equipment and operators. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a steel wire lifting belt hopper anti-detachment bolt that addresses the shortcomings of the existing technology, which has a good fixing effect on the hopper and the steel wire lifting belt and is not easy to fall off.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A wire rope lifting belt hopper anti-loosening bolt includes a threaded stud and a nut. One end of the stud is provided with a cylindrical smooth section, and the outer end of the smooth section is provided with a nut. The outer diameter of the smooth section is larger than the outer diameter of the stud. A first washer is provided between the nut and the hopper. The upper part of the smooth section is provided with several grooves, and the inner side of the first washer is provided with several protrusions that are adapted to the grooves.

[0007] The nut has a locking plate on its outer side, and the inner wall of the locking plate has several grooves. The outer side of the nut has a protrusion that corresponds to the grooves. The lower part of the locking plate has several rods, and the upper part of the first washer has a slot that corresponds to the rods.

[0008] As an improved technical solution, the stop protrusion is a wedge-shaped block, the inclined surface of the wedge-shaped block is set towards the head of the stud, and the stop groove is a wedge-shaped groove adapted to the wedge-shaped block.

[0009] As an improved technical solution, the inclined angle of the wedge block and the wedge groove is 10°-30°.

[0010] As an improved technical solution, the locking piece is a high-strength plastic or metal locking piece.

[0011] As an improved technical solution, a second washer is provided between the nut and the wire lifting belt.

[0012] As an improved technical solution, the inner side of the nut is provided with several anti-slip limiters adapted to the steel wire lifting belt.

[0013] As a preferred technical solution, the anti-slip limiter includes a base, and the upper part of the base is provided with two limiting protrusions with triangular cross sections, both of which are inclined outwards.

[0014] As a preferred technical solution, the included angle between the two limiting protrusions is 90-120°.

[0015] As a preferred technical solution, the top of both limiting protrusions is provided with several anti-slip teeth.

[0016] Due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] This utility model discloses an anti-loosening bolt for a wire rope conveyor belt hopper, comprising a threaded stud and a nut. One end of the stud has a cylindrical smooth section, and the outer end of the smooth section has a nut. The outer diameter of the smooth section is larger than the outer diameter of the stud. A first washer is provided between the nut and the hopper. The upper part of the smooth section has several grooves, and the inner side of the first washer has several protrusions that correspond to the grooves. The outer side of the nut has a locking plate, the inner wall of which has several grooves. The outer side of the nut has protrusions that correspond to the grooves. The lower part of the locking plate has several inserts, and the upper part of the first washer has slots that correspond to the inserts. Through the engagement of the grooves and protrusions, the first washer can be stably fixed on the smooth section of the stud. When the equipment vibrates during operation, the first washer will not rotate or shift arbitrarily, thus limiting the nut and reducing the possibility of loosening due to vibration, thereby improving the stability of the connection between the hopper and the wire rope conveyor belt. The locking plate is tightly connected to the nut through the cooperation of the retaining groove and the retaining protrusion, while the insert rod is inserted into the slot to further fix the locking plate and the first washer together. This structure forms an integrated anti-loosening system. When the nut tends to loosen, the locking plate can restrict its rotation, effectively preventing the nut from loosening and falling off, ensuring the reliability of the hopper connection, and avoiding material leakage and safety hazards.

[0018] The stop protrusion of this utility model is a wedge-shaped block, with the inclined surface of the wedge-shaped block facing the head of the stud. The stop groove is a wedge-shaped groove adapted to the wedge-shaped block. The cooperation between the wedge-shaped block and the wedge-shaped groove has a self-locking function. When the nut shows signs of loosening due to external forces such as vibration, the inclined surfaces between the wedge-shaped block and the wedge-shaped groove interact to generate a reverse force that prevents the nut from loosening. This enhances the locking effect of the locking plate on the nut, further improves the anti-loosening performance, and ensures the stable connection of the hopper on the wire rope conveyor belt.

[0019] The bevel angle of the wedge block and wedge groove is 10°-30°. This angle range ensures sufficient self-locking force between the wedge block and the wedge groove to effectively prevent the nut from loosening, while also facilitating the installation and removal of the locking plate. If the angle is too large, the self-locking effect may be poor; if the angle is too small, installation and removal will become difficult. This design achieves a good balance between anti-loosening performance and ease of operation.

[0020] The locking plate is made of high-strength plastic or metal. High-strength plastic or metal materials possess sufficient strength and toughness to withstand vibration and impact forces during equipment operation. During long-term use, it will not be damaged or deformed due to stress, ensuring the locking plate's continuous locking effect on the nut, improving the reliability and service life of the anti-loosening bolt, and thus guaranteeing the stability of the connection between the hopper and the wire rope conveyor belt.

[0021] A second washer is provided between the nut and the wire lifting belt. The second washer increases the contact area between the nut and the wire lifting belt, disperses the pressure of the nut on the wire lifting belt, and prevents the nut from damaging the wire lifting belt during vibration. At the same time, the second washer also plays a certain role in buffering, reducing the impact of vibration on the stud and nut connection, further improving the stability of the connection, and reducing the risk of nut loosening.

[0022] The inner side of the nut is provided with several anti-slip limiters adapted to the wire rope conveyor belt. These anti-slip limiters increase the friction between the nut and the wire rope conveyor belt, preventing the nut from sliding on the belt. Even during equipment operation, factors such as vibration and changes in material weight ensure the nut remains fixed in place, thus guaranteeing the connection between the stud and the nut. This avoids the problem of the nut loosening due to slippage and improves the safety of the hopper connection.

[0023] The anti-slip limiting device includes a base, the upper part of which has two triangular limiting protrusions, both of which are inclined outwards. The triangular limiting protrusions provide good stability and anti-slip performance. The outward inclination design allows for better contact with the surface of the wire rope lifting belt, increasing friction while also limiting the nut to prevent horizontal movement. This structural design effectively improves the connection stability between the nut and the wire rope lifting belt, thereby reducing the possibility of the nut loosening.

[0024] The included angle between the two limiting protrusions is 90-120°. This angle range allows for a suitable contact angle and friction between the limiting protrusions and the wire rope lifting belt. If the angle is too small, the squeezing force of the limiting protrusions on the wire rope lifting belt may be too strong, easily damaging it; if the angle is too large, the anti-slip effect may be poor. This design finds the optimal balance between protecting the wire rope lifting belt and improving anti-slip performance, enhancing the overall performance of the anti-loosening bolt.

[0025] Both of the aforementioned limiting protrusions have several anti-slip teeth on their tops. These anti-slip teeth further increase the friction between the limiting protrusions and the wire rope lifting belt, making the connection between the nut and the wire rope lifting belt more secure. During equipment operation, the anti-slip teeth effectively prevent the nut from sliding and rotating, thus ensuring the reliability of the connection between the stud and the nut, greatly reducing the risk of the nut loosening and falling off, and guaranteeing the normal operation of the hopper and production safety. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0028] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0029] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0030] Figure 4 This is an exploded view of an embodiment of the present utility model;

[0031] The components are: 1. Stud; 2. Nut; 3. Smooth section; 4. Nut; 5. First washer; 6. Slot; 7. Protrusion; 8. Locking piece; 9. Retaining groove; 10. Retaining protrusion; 11. Insert rod; 12. Slot; 13. Second washer; 14. Anti-slip limit; 15. Base; 16. Limiting protrusion; 17. Anti-slip tooth. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] like Figure 1-4 As shown, a wire rope conveyor hopper anti-loosening bolt includes a threaded stud 1 and a nut 2. One end of the stud 1 is provided with a cylindrical smooth section 3, and the outer end of the smooth section 3 is provided with a nut 4. The outer diameter of the smooth section 3 is larger than the outer diameter of the stud 1. A first washer 5 is provided between the nut 2 and the hopper. The upper part of the smooth section 3 is provided with several grooves 6, and the inner side of the first washer 5 is provided with several protrusions 7 that are adapted to the grooves 6. The outer side of the nut 2 is provided with a locking plate 8, the inner wall of the locking plate 8 is provided with several retaining grooves 9, and the outer side of the nut 2 is provided with several retaining protrusions 10 that are adapted to the retaining grooves 9. The lower part of the locking plate 8 is provided with several insert rods 11, and the upper part of the first washer 5 is provided with slots 12 that are adapted to the insert rods 11. The engagement of the slot 6 and the protrusion 7 ensures that the first washer 5 is stably fixed to the smooth section 3 of the stud 1. When the equipment vibrates during operation, the first washer 5 will not rotate or shift arbitrarily, thus limiting the nut 2 and reducing the possibility of it loosening due to vibration, thereby improving the stability of the connection between the hopper and the wire rope conveyor belt. The locking plate 8 is tightly connected to the nut 2 through the engagement of the groove 9 and the protrusion 10. Simultaneously, the insertion rod 11 further secures the locking plate 8 to the first washer 5 by inserting it into the slot 12. This structure forms an integrated anti-loosening system. When the nut 2 shows signs of loosening, the locking plate 8 restricts its rotation, effectively preventing the nut 2 from loosening and falling off, ensuring the reliability of the hopper connection, and avoiding material leakage and safety hazards.

[0034] The stop protrusion 10 is a wedge-shaped block, with its inclined surface facing the head of the stud 1. The stop groove 9 is a wedge-shaped groove adapted to the wedge-shaped block. The cooperation between the wedge-shaped block and the wedge-shaped groove has a self-locking function. When the nut 2 shows signs of loosening due to external forces such as vibration, the inclined surfaces between the wedge-shaped block and the wedge-shaped groove interact to generate a reverse force that prevents the nut 2 from loosening. This enhances the locking effect of the locking piece 8 on the nut 2, further improves the anti-loosening performance, and ensures the stable connection of the hopper on the wire rope conveyor belt.

[0035] The bevel angle of the wedge block and wedge groove is 10°-30°. This angle range ensures sufficient self-locking force between the wedge block and the wedge groove to effectively prevent the nut 2 from loosening, while also facilitating the installation and removal of the locking piece 8. If the angle is too large, the self-locking effect may be poor; if the angle is too small, installation and removal will become difficult. This design achieves a good balance between anti-loosening performance and ease of operation.

[0036] The locking piece 8 is made of high-strength plastic or metal. The high-strength plastic or metal material has sufficient strength and toughness to withstand vibration and impact during equipment operation. During long-term use, it will not be damaged or deformed due to stress, ensuring the continuous locking effect of the locking piece 8 on the nut 2, improving the reliability and service life of the anti-loosening bolt, and thus ensuring the stability of the connection between the hopper and the wire rope conveyor belt.

[0037] A second washer 13 is provided between the nut 4 and the wire lifting belt. The second washer 13 increases the contact area between the nut 4 and the wire lifting belt, disperses the pressure of the nut 4 on the wire lifting belt, and prevents the nut 4 from damaging the wire lifting belt during vibration. At the same time, the second washer 13 also plays a certain role in buffering, reducing the impact of vibration on the connection between the stud 1 and the nut 2, further improving the stability of the connection and reducing the risk of the nut 2 loosening.

[0038] The inner side of the nut 4 is provided with several anti-slip limiters 14 adapted to the wire rope conveyor belt. The anti-slip limiters 14 can increase the friction between the nut 4 and the wire rope conveyor belt, preventing the nut 4 from sliding on the wire rope conveyor belt. When the equipment is running, even if there are factors such as vibration and changes in material weight, the anti-slip limiters 14 can ensure that the nut 4 is fixed in its original position, thereby ensuring the connection state of the stud 1 and the nut 2, avoiding the problem of the nut 2 loosening due to the slippage of the nut 4, and improving the safety of the hopper connection.

[0039] The anti-slip limiting 14 includes a base 15, the upper part of which is provided with two limiting protrusions 16 with triangular cross-sections, both of which are inclined outwards. The triangular limiting protrusions 16 have good stability and anti-slip performance. The outwardly inclined design allows for better contact with the surface of the wire rope lifting belt, increasing friction while also limiting the nut 4 to prevent it from moving horizontally. This structural design effectively improves the connection stability between the nut 4 and the wire rope lifting belt, thereby reducing the possibility of the nut 2 loosening.

[0040] The included angle between the two limiting protrusions 16 is 90-120°. This angle range allows for a suitable contact angle and friction between the limiting protrusions 16 and the wire rope lifting belt. If the angle is too small, the squeezing force of the limiting protrusions 16 on the wire rope lifting belt may be too strong, easily damaging the belt; if the angle is too large, the anti-slip effect may be poor. This design finds the optimal balance between protecting the wire rope lifting belt and improving anti-slip performance, enhancing the overall performance of the anti-loosening bolt.

[0041] Both limiting protrusions 16 have several anti-slip teeth 17 on their tops. The anti-slip teeth 17 further increase the friction between the limiting protrusions 16 and the wire lifting belt, making the connection between the nut 4 and the wire lifting belt more secure. During equipment operation, the anti-slip teeth 17 effectively prevent the nut 4 from sliding and rotating, thereby ensuring the reliability of the connection between the stud 1 and the nut 2, greatly reducing the risk of the nut 2 loosening and falling off, and ensuring the normal operation of the hopper and production safety.

[0042] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A wire rope conveyor hopper anti-detachment bolt, comprising a threaded stud and a nut, wherein one end of the stud has a cylindrical smooth section, and the outer end of the smooth section has a nut, characterized in that: The outer diameter of the smooth section is larger than the outer diameter of the stud. A first washer is provided between the nut and the hopper. The upper part of the smooth section is provided with several slots. The inner side of the first washer is provided with several protrusions that are adapted to the slots. The nut has a locking plate on its outer side, and the inner wall of the locking plate has several grooves. The outer side of the nut has a protrusion that corresponds to the grooves. The lower part of the locking plate has several rods, and the upper part of the first washer has a slot that corresponds to the rods.

2. The anti-loosening bolt for a wire rope conveyor hopper as described in claim 1, characterized in that: The stop protrusion is a wedge-shaped block, the inclined surface of the wedge-shaped block is set towards the head of the stud, and the stop groove is a wedge-shaped groove adapted to the wedge-shaped block.

3. The anti-loosening bolt for a wire rope conveyor hopper as described in claim 2, characterized in that: The The inclined angle of the wedge block and the wedge groove is 10°-30°.

4. The anti-loosening bolt for a wire rope conveyor hopper as described in claim 1, characterized in that: The locking piece is a high-strength plastic or metal locking piece.

5. The anti-loosening bolt for a wire rope conveyor hopper as described in claim 1, characterized in that: A second washer is provided between the nut and the wire lifting belt.

6. The anti-loosening bolt for a wire rope conveyor hopper as described in claim 1, characterized in that: The inner side of the nut is provided with several anti-slip limiters adapted to the wire lifting belt.

7. The anti-loosening bolt for a wire rope conveyor hopper as described in claim 6, characterized in that: The anti-slip limiter includes a base, and the upper part of the base is provided with two limiting protrusions with triangular cross sections, both of which are inclined outwards.

8. The anti-loosening bolt for a wire rope conveyor hopper as described in claim 7, characterized in that: The included angle between the two limiting protrusions is 90-120°.

9. The anti-loosening bolt for a wire rope conveyor hopper as described in claim 7, characterized in that: Both of the aforementioned limiting protrusions have several anti-slip teeth on their tops.