Multi-stage combined type breakage-proof telescopic chute tube
Through the design of a multi-stage combined anti-breaking telescopic roller, the use of breathable soft sealing ring and a cushioning plate wear-resistant lining plate has solved the problem of poor anti-breaking effect of existing telescopic rollers under high drop and large output, and achieved low-cost and efficient material transportation and environmental protection effects.
Patent Information
- Application Number
- CN202421752984.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-23
AI Technical Summary
The existing telescopic rollers have poor anti-breaking function under high drop and large output conditions, and have problems such as poor environmental protection, high cost and high maintenance costs.
It adopts a multi-stage combined structure, including a power system, a guide cone bucket, A-type shank and B-type shank. A breathable soft sealing ring is installed between adjacent shanks. The inner wall is equipped with a buffer plate and a wear-resistant lining plate. When the material flow passes, it buffers and speed reductions are performed multiple times, and the air pressure balance is maintained through the breathable soft sealing ring to reduce dust spillage.
It achieves good anti-broken effect under large output, reduces manufacturing costs and maintenance costs, improves equipment stability and environmental protection, and reduces dust diffusion.
Smart Images
Figure CN223133065U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of telescopic chute, in particular to a multi-stage combined anti-breakage telescopic chute. Background Technique
[0002] Telescopic chutes are widely used in the unloading and transfer operations of bulk materials in ports, warehouses, mines, processing plants and other places. Its main function is to realize the transportation and loading and unloading of materials. In occasions where there are strict requirements for the breakage rate of bulk materials during operations, there are still some deficiencies in existing various telescopic chutes:
[0003] 1. Eccentric cone hopper telescopic chute ( Figure 4 ): The telescopic section is an eccentric cone hopper. One plane of the eccentric cone hopper is not perpendicular to the center line of the cone hopper. This type of telescopic chute has the following problems:
[0004] ① In order to achieve the function of buffering and decelerating, the upper cone opening surface of the eccentric cone hopper after hoisting is in an inclined state. When the material flow passes through the cone hopper, the pressure on one side of the inner wall of the cone hopper is much greater than that on the other side. The cone hopper has a tendency to shift horizontally, and the horizontal shift tendency directions of two adjacent cone hoppers are opposite. When the material flow fluctuates, due to the asynchronous change of the horizontal forces on two adjacent cone hoppers, the cone hopper will vibrate. The vibration will instantaneously increase the tension borne by the hoisting rope (belt), accelerate the fatigue of the hoisting rope (belt), shorten the service life, and pose a safety hazard. To reduce the vibration of the cone hopper when the material fluctuates, it is necessary to increase the counterweight of the cone hopper, thus increasing the manufacturing cost.
[0005] ② Since there is a very large gap between two adjacent cone hoppers, in order to prevent the dust overflowing from the gap of the cone hopper from diffusing into the atmosphere, it is necessary to install a dust-proof canvas cover outside the telescopic chute, increasing the manufacturing cost and maintenance cost.
[0006] ③ Since the buffering and decelerating of the material flow completely rely on the side wall of the cone hopper, in order to prevent the material from being broken and the erosion and wear of the side wall by the material flow, it is necessary to install wear-resistant lining plates on the inner surface of the cone hopper, increasing the manufacturing cost.
[0007] ④ Due to the complex structure and high failure rate, it affects normal production and the maintenance cost is high.
[0008] 2. Central orifice cone hopper telescopic chute ( Figure 5 ): The telescopic section is a central orifice cone hopper. This type of telescopic chute has the following problems:
[0009] ① The cone hopper is generally designed so that the material flows as a whole in the hopper, and the material flow erodes and wears the inner wall of the cone hopper severely. Therefore, it is necessary to install wear-resistant lining plates on the inner wall of the cone hopper.
[0010] ② To obtain a larger relative maximum throughput, the material flows out of the hopper at a relatively high speed, resulting in a large extrusion pressure between the material particles, and the extrusion pressure changes violently, exacerbating the material breakage. Therefore, the anti-breakage function of the central port hopper is poor.
[0011] ③ Since there is a very large gap between two adjacent hoppers, in order to prevent the dust overflowing from the hopper gap from spreading into the atmosphere, a dust-proof canvas cover must be installed outside the telescopic chute.
[0012] 3. Fold-back type fixed straight telescopic chute ( Figure 6 ): The chute consists of an upper fixed part with a fold-back buffer baffle and a lower telescopic chute. This type of telescopic chute has the following problems:
[0013] ① Only the upper fixed part has a buffer and speed reduction function, so the buffer and speed reduction effect is limited, and the material breakage degree is relatively high.
[0014] ② Due to the excessive blocking effect of the fold-back mechanism on the material flow, the relative maximum throughput of this type of chute is relatively small.
[0015] ③ Since the upper fixed part of this type of chute occupies a relatively large height, the telescopic height of the telescopic part is limited.
[0016] In view of the fact that all types of anti-breakage telescopic chutes currently in use have imperfections, there is an urgent need in the market for a telescopic chute that also has excellent anti-breakage function under the conditions of high drop and large output, and has the advantages of environmental protection, low cost, and low maintenance cost. Summary of the Utility Model
[0017] The utility model provides a multi-stage combined anti-breakage telescopic chute, which can effectively solve the problems mentioned in the above background technology that the telescopic chute not only has a poor anti-breakage function, but also is not environmentally friendly, has a high cost, and has a high maintenance cost under the conditions of high drop and large output.
[0018] To achieve the above object, the utility model provides the following technical solution: A multi-stage combined anti-breakage telescopic chute, including a power system, a guiding hopper, a type A chute and a type B chute. The type A chute is sleeved outside the guiding hopper, the bottom end of the type A chute is sleeved with the type B chute, and a breathable soft sealing ring is installed between adjacent type A chutes and type B chutes;
[0019] The output end of the power system is connected to the type B chute at the bottom end of the telescopic chute through a power steel wire rope. Reinforcing flanges are installed at the tops of both the type A chute and the type B chute, and limiting flanges are installed below the reinforcing flanges on both the type A chute and the type B chute;
[0020] Two buffer plates are welded to the inner wall of the type A chute, and two flat buffer plates are welded to the inner wall of the type B chute. Wear-resistant liners are installed on the outer surfaces of the buffer plates and the flat buffer plates.
[0021] According to the above technical solution, the guiding conical hopper receives the material from the upper feeding port or the feeding boot, and a breathable flexible connection is provided between the guiding conical hopper and the upper feeding port or the feeding boot.
[0022] According to the above technical solution, a pair of adjacent type A chutes and type B chutes form a basic unit for buffer, speed reduction and anti-breakage. According to actual production requirements, a telescopic chute is composed of n basic units for buffer, speed reduction and anti-breakage, where n is a positive integer, and its size is determined according to the actual production situation. The type A chutes and the type B chutes are arranged at equal intervals and symmetrically at intervals.
[0023] According to the multi-stage combined anti-breakage telescopic chute described in the claims, it is characterized in that: the buffer plate is V-shaped or arc-shaped, and the cross-sections of the type A chute and the type B chute are rectangular or circular.
[0024] According to the above technical solution, the two buffer plates welded to the inner wall of the type A chute are symmetrically arranged along the center line of the chute, and the two flat buffer plates welded to the inner wall of the type B chute are symmetrically arranged along the center line of the chute.
[0025] According to the above technical solution, four lifting lugs are provided below the reinforcing flange, and the lifting lugs are connected to the barrel connecting steel wire rope through U-shaped clamps;
[0026] The four lifting lugs are evenly distributed along the circumference, and the lifting lugs are located between the reinforcing flange and the limiting flange. Compared with the prior art, the beneficial effects of the present utility model are: the structure of the present utility model is scientific and reasonable, and it is safe and convenient to use.
[0027] 1. The output range is large, the relative throughput is large, the weight of the chute is light, and the manufacturing material cost can be greatly saved.
[0028] 2. The anti-breakage effect is good. The material flow is buffered and decelerated twice in a basic unit for buffer, speed reduction and anti-breakage, and wear-resistant liners with good wear resistance and excellent vibration absorption are installed on the buffer device, so as to realize the anti-breakage function from two aspects of buffer, speed reduction and vibration mitigation.
[0029] 3. Since each section of the chute adopts a rectangular column barrel or a cylindrical barrel, the internal buffer device is designed symmetrically along the center line of the chute, and the material flow channel is symmetrically arranged. When the material flow passes through each section of the chute, especially when the material flow fluctuates, the horizontal component forces in all directions acting on the chute by the material are very small, and the magnitudes are equal and the directions are opposite. Therefore, the telescopic chute is very stable and the safety factor is very high.
[0030] 4. Two adjacent chutes are connected by a special breathable soft sealing ring. The sealing material can maintain the air pressure balance inside and outside the chute, reduce dust generation and almost block all dust overflow.
[0031] 5. Due to the excellent sealing between the chutes, there is no need to add a dust-proof cover on the outside of the telescopic chutes, which reduces the production cost.
[0032] 6. This type of telescopic chute is simple to manufacture, has a very low failure rate, and has very low maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.
[0034] In the attached picture:
[0035] Figure 1 It is a schematic diagram of the structure of the utility model in a stretched state;
[0036] Figure 2 It is a schematic diagram of the structure of the utility model in a contracted state;
[0037] Figure 3 It is a structural schematic diagram of the A-type chute and the B-type chute of the utility model;
[0038] Figure 4 It is a structural schematic diagram of an eccentric cone bucket telescopic chute;
[0039] Figure 5 This is a schematic diagram of the structure of a telescopic chute with a center-mouth cone bucket;
[0040] Figure 6 It is a structural schematic diagram of a return type fixed straight tube telescopic chute;
[0041] Numbers in the figure: 1. Power system; 2. Guide cone bucket; 3. Type A chute; 4. Type B chute; 5. Breathable soft sealing ring; 6. chute connecting wire rope; 7. Power wire rope; 8. Reinforcement flange; 9. Limit flange; 10. Wear-resistant lining; 11. Buffer plate; 12. Flat buffer plate. DETAILED DESCRIPTION
[0042] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0043] Example: Figures 1-6As shown in the figure, the present utility model provides a technical solution for a multi-stage combined anti-breakage telescopic chute, which includes a power system 1 and a guiding conical hopper 2. The guiding conical hopper 2 receives the material from the upper feeding port or the feeding boot. There is a breathable flexible connection between the guiding conical hopper 2 and the upper feeding port or the feeding boot. An A-type chute 3 is sleeved outside the guiding conical hopper 2, and a B-type chute 4 is sleeved at the bottom end of the A-type chute 3. An adjacent pair of the A-type chute 3 and the B-type chute 4 form a basic unit for buffer deceleration and anti-breakage. According to the actual production requirements, a set of telescopic chutes is composed of n basic units for buffer deceleration and anti-breakage, where n is a positive integer and its size is determined by the actual production situation. The A-type chute 3 and the B-type chute 4 are arranged at equal intervals and symmetrically at intervals. A breathable soft sealing ring 5 is installed between the adjacent A-type chute 3 and B-type chute 4, and the breathable soft sealing ring 5 can prevent dust from overflowing.
[0044] The output end of the power system 1 is connected to the B-type chute 4 at the bottom end of the telescopic chute through a power steel wire rope 7 to realize the overall up and down movement of the telescopic chute. Reinforcing flanges 8 are installed at the tops of both the A-type chute 3 and the B-type chute 4. Four lifting lugs are arranged adjacent to the lower part of the reinforcing flange 8. The lifting lugs are connected to the chute connecting steel wire rope 6 through U-shaped clamps. Limiting flanges 9 are installed on the A-type chute 3 and the B-type chute 4 below the reinforcing flange 8. The limiting flanges 9 are used for limiting when the telescopic chute contracts. The four lifting lugs are evenly distributed along the circumference, and the lifting lugs are located between the reinforcing flange 8 and the limiting flange 9.
[0045] Two buffer plates 11 are welded to the inner wall of the A-type chute 3, and two flat buffer plates 12 are welded to the inner wall of the B-type chute 4. The buffer plates 11 are V-shaped or arc-shaped. The A-type chute 3 and the B-type chute 4 are square or circular. The two buffer plates 11 welded to the inner wall of the A-type chute 3 are symmetrically arranged along the center line of the chute. The two flat buffer plates 12 welded to the inner wall of the B-type chute 4 are symmetrically arranged along the center line of the chute. Wear-resistant linings 10 are installed on the outer surfaces of both the buffer plates 11 and the flat buffer plates 12. The wear-resistant linings 10 are used for buffering, decelerating the material flow and buffering vibration to extend the service life of the buffer plates 11 and the flat buffer plates 12.
[0046] The working principle and usage process of the present utility model: Before use, first unwind and unfold the telescopic chute, start the power system 1. The power system 1 drives the B-type chute 4 at the bottom end of the telescopic chute to move downward through the power steel wire rope 7. The downward movement of the B-type chute 4 at the bottom end of the telescopic chute drives the chute connecting steel wire rope 6 to move downward and stretch, thereby driving the chute to move downward and making the chute unfold from the nested state.
[0047] During use, the guiding conical hopper 2 receives the material from the upper feeding port or the feeding boot. The material flow forms a centered and vertically falling material flow through the guiding conical hopper 2 and enters the A-type chute 3. When the material flow falls to the buffer plate 11, it will be divided into three parts, namely the part perpendicular to the projection plane of the buffer plate 11 and the parts vertically falling on both sides of it.
[0048] This part of the material flow perpendicular to the projection plane of the buffer plate 11 will be blocked by the buffer plate 11, resulting in a significant reduction in speed. Under the guidance of the buffer plate 11, this part of the material flow will uniformly flow to the material flows falling vertically on both sides along the inclined surface or arc surface of the buffer plate 11, forming two vertically falling material flows with equal flow rates and symmetrically distributed along the center line of the chute, and entering the B-type chute 4. During this process, the material flows falling vertically on both sides are blocked and the speed is reduced.
[0049] When the material flow enters the B-type chute 4 and falls to the flat buffer plate 12, the two material flows will be blocked by the flat buffer plate 12 respectively, resulting in a significant reduction in speed, and flow out along the inclined surface direction of the flat buffer plate 12. The two material flows flowing out along the inclined surface direction of the flat buffer plate 12 will converge into a material flow that gathers vertically in the middle and enters the next A-type chute 3. In this way, the material flow is repeatedly buffered and decelerated in a cycle, and the purpose of fully buffering and decelerating the material flow in the telescopic chute can be achieved. Since wear-resistant liners 10 with good wear resistance and excellent vibration absorption are installed on both the buffer plate 11 and the flat buffer plate 12, the anti-breakage function can be realized from two aspects of buffer deceleration and vibration mitigation.
[0050] A breathable soft sealing ring 5 is installed between two adjacent A-type chutes 3 and B-type chutes 4, which keeps the air pressure balance inside and outside the chute, reduces dust generation and can almost block all dust overflow, thus meeting the requirements for environmental protection and safety.
[0051] After use, the telescopic chute is contracted, and the power system 1 is started. The power system 1 drives the B-type chute 4 at the bottom of the telescopic chute to move upward through the power steel wire rope 7. The upward movement of the B-type chute 4 at the bottom of the telescopic chute drives the cylinder connection steel wire rope 6 to move upward and contract, thereby driving the chute to move upward, making the chute present a nested state.
[0052] Finally, it should be noted that the above are only preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A multi-stage combined anti-breakage telescopic chute, comprising a power system (1), a guiding conical hopper (2), a type A chute (3) and a type B chute (4), characterized in that: An A-shaped chute (3) is sleeved outside the guiding conical hopper (2), a B-shaped chute (4) is sleeved at the bottom end of the A-shaped chute (3), and a breathable soft sealing ring (5) is installed between the adjacent A-shaped chute (3) and B-shaped chute (4); The output end of the power system (1) is connected to the B-shaped chute (4) at the bottom end of the telescopic chute through a power steel wire rope (7). Reinforcing flanges (8) are installed at the top ends of the A-shaped chute (3) and the B-shaped chute (4), and limit flanges (9) are installed below the reinforcing flanges (8) on the A-shaped chute (3) and the B-shaped chute (4); Two buffer plates (11) are welded to the inner wall of the A-shaped chute (3), two flat buffer plates (12) are welded to the inner wall of the B-shaped chute (4), and wear-resistant liners (10) are installed on the outer surfaces of the buffer plates (11) and the flat buffer plates (12).
2. The multi-stage combined anti-breakage telescopic chute according to claim 1, characterized in that: The guiding conical hopper (2) receives the material from the upper feeding port or the feeding boot, and a breathable flexible connection is provided between the guiding conical hopper (2) and the upper feeding port or the feeding boot.
3. A multi-stage combined anti-break telescopic chute according to claim 1, characterized in that: An adjacent pair of the A-shaped chute (3) and the B-shaped chute (4) form a basic unit for buffer, speed reduction and anti-breakage. According to the actual production requirements, a set of telescopic chutes is composed of n basic units for buffer, speed reduction and anti-breakage, where n is a positive integer, and the size is determined according to the actual production situation. The A-shaped chute (3) and the B-shaped chute (4) are arranged at equal intervals and symmetrically at intervals.
4. A multi-stage combined anti-breakage telescopic chute according to claim 1, characterized in that: The buffer plate (11) is V-shaped or arc-shaped, and the cross-sections of the A-shaped chute (3) and the B-shaped chute (4) are rectangular or circular.
5. A multi-stage combined anti-breakage telescopic chute according to claim 1, characterized in that: The two buffer plates (11) welded to the inner wall of the A-shaped chute (3) are symmetrically arranged along the center line of the chute, and the two flat buffer plates (12) welded to the inner wall of the B-shaped chute (4) are symmetrically arranged along the center line of the chute.
6. A multi-stage combined anti-breakage telescopic chute according to claim 1, characterized in that: Four lifting lugs are provided below the reinforcing flange (8), and the lifting lugs are connected to the barrel connecting steel wire rope (6) through U-shaped clamps; The four lifting lugs are evenly distributed along the circumference, and the lifting lugs are located between the reinforcing flange (8) and the limit flange (9).