A feed shoe leak prevention device
Patent Information
- Application Number
- CN202521867927.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-29
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-08-29
AI Technical Summary
[0003]为了解决进料靴后部无挡板设计时，物料易从进料靴后部溢出；进料靴后部有固定式挡板设计时，无法适应输送带抖动，导致密封不严或过度摩擦，并且维护频繁；以及进料靴后部靠物料自身堆积被动密封时，物料流量波动时泄漏会加剧的技术问题，本实用新型提供了一种进料靴防漏装置，柔性后挡板和两个柔性侧挡板的结构简单，实现柔性耐磨密封，自适应密封、密封性好，有效阻止物料泄漏
[0013]This utility model's feed shoe leak-proof device addresses the issue that during material feeding onto the conveyor belt, some material or dust may accumulate between the flexible rear baffle and the two flexible side baffles. As the material volume increases instantaneously, it compresses these baffles. Since the bottoms of the flexible rear baffle and the two flexible side baffles are in contact with the conveyor belt, material leakage from the rear end of the feed shoe is prevented. Material and dust cannot reach the tail section of the conveyor or the sides of the conveyor belt, thus ensuring the material always moves in the direction of the conveyor belt's movement. Because the flexible rear baffle and the two flexible side baffles are made of flexible material, they possess two advantages: first, elastic deformation capability, adapting to conveyor belt movement and providing self-sealing when their bottoms contact the conveyor belt, resulting in excellent sealing; second, extremely high wear resistance, with a wear rate <80mm compared to traditional fixed baffle designs. 3 Furthermore, it can effectively reduce material breakage. The feed boot anti-leakage device of this utility model has a simple structure of flexible rear baffle and two flexible side baffles, achieving flexible and wear-resistant sealing, self-adaptive sealing, good sealing performance, and effectively preventing material leakage.
Smart Images
Figure CN224691048U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of feed boot leak prevention devices, and specifically to a feed boot leak prevention device. Background Technology
[0002] The feed shoe is a transitional component connecting the hopper and the conveyor equipment, ensuring that (granular) materials smoothly enter the conveyor belt without leakage. During the conveying process, leakage easily occurs at the rear of the feed shoe (near the rear of the outlet) due to material accumulation and the return motion of the conveyor belt. Traditional solutions have the following drawbacks: First, the lack of a baffle design allows material to easily overflow from the rear of the feed shoe, causing dust and material waste (measured leakage >5 kg / h). Second, the fixed baffle design cannot adapt to conveyor belt vibration (±1-2 mm), leading to poor sealing or excessive friction (wear rate 0.2 mm / 100 h); furthermore, maintenance is frequent, as the fixed baffle has hard contact with the conveyor belt, requiring weekly gap adjustments, which consumes manpower. Third, passive sealing relies on material accumulation, which exacerbates leakage during material flow fluctuations (such as instantaneous 30% overload), resulting in material loss; leakage at the rear of the material (such as flour) accounts for more than 40% of the total leakage. Therefore, a feed shoe leak-proof device is urgently needed to solve the above problems. Utility Model Content
[0003] To address the technical problems of material overflowing from the rear of the feed shoe when there is no baffle; the inability to adapt to conveyor belt vibration when there is a fixed baffle, leading to poor sealing or excessive friction and frequent maintenance; and the increased leakage when the rear of the feed shoe relies on material accumulation for passive sealing, which is exacerbated by fluctuations in material flow, this utility model provides a feed shoe leak-proof device. The flexible rear baffle and two flexible side baffles have a simple structure, achieving flexible and wear-resistant sealing, self-adaptive sealing, and good sealing performance, effectively preventing material leakage.
[0004] This utility model provides a feed boot leak-proof device, including a flexible rear baffle and two flexible side baffles. The flexible rear baffle is fixedly installed at the end of the feed boot, and the two flexible side baffles are symmetrically arranged on both sides of the feed boot and are inclined. The flexible rear baffle is located to the side of the two flexible side baffles, and the bottom of the flexible rear baffle and the two flexible side baffles are in contact with the conveyor belt.
[0005] Furthermore, the feeding shoe includes a feeding hopper and a triangular plate. A notch is provided on the triangular plate. The lower part of the feeding hopper is fixedly disposed at the notch of the triangular plate and the two are connected. The flexible rear baffle is fixedly disposed at the lower part of the feeding hopper. The two flexible side baffles are respectively fixedly disposed on the two side walls of the triangular plate and are symmetrical to each other.
[0006] Furthermore, it also includes a pressure plate, which is fixedly disposed on the side of the flexible rear baffle; a first screw hole is provided at the lower part of the feed hopper, a second screw hole is provided on the flexible rear baffle, and a third screw hole is provided on the pressure plate; a first bolt passes through the first screw hole, the second screw hole, and the third screw hole and is fixedly connected to a first nut. The pressure plate ensures that the flexible rear baffle is stably connected to the lower part of the feed hopper.
[0007] Furthermore, the bottom of both the flexible back baffle and the pressure plate is curved.
[0008] Furthermore, it also includes two connecting plates, which are respectively fixedly mounted on the sidewalls of the triangular plate and inclined, and two flexible side baffles are respectively fixedly mounted on the two connecting plates and symmetrically opposite each other. The connecting plates ensure that the flexible side baffles are stably connected to the sidewalls of the triangular plate.
[0009] Furthermore, each of the connecting plates includes a horizontal plate, a first vertical plate, and a second vertical plate. The horizontal plate is fixedly mounted on the side wall of the triangular plate, and the first and second vertical plates are fixedly connected to both ends of the horizontal plate and are inclined. The flexible side baffle is fixedly mounted on the first vertical plate.
[0010] Furthermore, each of the horizontal plates is provided with a fourth screw hole, and each of the two side walls of the triangular plate is provided with a fifth screw hole. The second bolt passes through the fourth and fifth screw holes and is fixedly connected with the second nut. The horizontal plates and the triangular plates are fixedly connected by the second bolt and the second nut.
[0011] Furthermore, each of the first upright plates is provided with a sixth screw hole, and each of the flexible side baffles is provided with a seventh screw hole. The third bolt passes through the sixth and seventh screw holes and is fixedly connected with the third nut. The flexible side baffles and the first upright plates are fixedly connected by the third bolt and the third nut.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This utility model's feed shoe leak-proof device addresses the issue that during material feeding onto the conveyor belt, some material or dust may accumulate between the flexible rear baffle and the two flexible side baffles. As the material volume increases instantaneously, it compresses these baffles. Since the bottoms of the flexible rear baffle and the two flexible side baffles are in contact with the conveyor belt, material leakage from the rear end of the feed shoe is prevented. Material and dust cannot reach the tail section of the conveyor or the sides of the conveyor belt, thus ensuring the material always moves in the direction of the conveyor belt's movement. Because the flexible rear baffle and the two flexible side baffles are made of flexible material, they possess two advantages: first, elastic deformation capability, adapting to conveyor belt movement and providing self-sealing when their bottoms contact the conveyor belt, resulting in excellent sealing; second, extremely high wear resistance, with a wear rate <80mm compared to traditional fixed baffle designs. 3 Furthermore, it can effectively reduce material breakage. The feed boot anti-leakage device of this utility model has a simple structure of flexible rear baffle and two flexible side baffles, achieving flexible and wear-resistant sealing, self-adaptive sealing, good sealing performance, and effectively preventing material leakage. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a feed boot anti-leakage device according to this utility model;
[0015] Figure 2 This is a utility model Figure 1 Enlarged structural diagram of A in the middle;
[0016] Figure 3 This is a schematic diagram of the external structure of the flexible side baffle of this utility model;
[0017] Figure 4 This is a structural schematic diagram of the flexible rear baffle and flexible side baffle of this utility model;
[0018] Figure 5 This is a utility model Figure 4 Enlarged structural diagram of B in the middle;
[0019] The numbers in the attached diagram are:
[0020] 1. Feed shoe; 11. Feed hopper; 12. Triangular plate; 2. Flexible rear baffle; 3. Flexible side baffle; 4. Pressure plate; 41. First bolt; 42. First nut; 5. Connecting plate; 51. Horizontal plate; 52. First vertical plate; 53. Second vertical plate; 54. Second bolt; 55. Second nut; 56. Third bolt; 57. Third nut; 6. Conveyor belt. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0022] like Figures 1-5As shown, a leak-proof device for a feed shoe includes a flexible rear baffle 2 and two flexible side baffles 3. The flexible rear baffle 2 is fixedly installed at the end of the feed shoe 1. The two flexible side baffles 3 are symmetrically arranged on both sides of the feed shoe 1 and are inclined. The flexible rear baffle 2 is located to the side of the two flexible side baffles 3, and the bottoms of the flexible rear baffle 2 and the two flexible side baffles 3 are in contact with the conveyor belt 6. Specifically, the flexible rear baffle 2 is located to the right of the two flexible side baffles 3, and the bottoms of the flexible rear baffle 2 and the two flexible side baffles 3 are in contact with the conveyor belt 6.
[0023] Before conveying materials, preparations must be made. The feed shoe 1 is installed on the conveyor, positioned above the right end (i.e., rear end) of the conveyor belt 6. Material enters the conveyor through the feed shoe 1 and falls onto the conveyor belt 6. The conveyor belt 6 rotates counter-clockwise, propelling the material forward in the direction of its movement (the upper part of the conveyor belt 6 moves the material from right to left). It should be noted that the conveyor belt 6 will droop downwards while conveying materials. See also... Figure 4 The center position of conveyor belt 6 has a large sag, and the sag from the center position of conveyor belt 6 to its side gradually decreases. Therefore, the height of the bottom horizontal plane of flexible rear baffle 2 is lower than the height of the bottom horizontal plane of flexible side baffle 3.
[0024] As the material falls onto the conveyor belt 6, some material or dust will reach the flexible rear baffle 2 and the two flexible side baffles. As the material increases instantaneously, the material will squeeze the flexible rear baffle 2 and the two flexible side baffles 3. Since the bottom of the flexible rear baffle 2 and the two flexible side baffles 3 are in contact with the conveyor belt 6, the material is prevented from leaking from the rear end of the feed shoe 1. The material and dust cannot reach the tail of the conveyor or the sides of the conveyor belt 6, so that the material always moves in the direction of the conveyor belt 6.
[0025] Because the flexible rear baffle 2 and the two flexible side baffles 3 are made of flexible material, they have two advantages: First, they have elastic deformation capability with a compression rate of 15%-20%. When the bottom of the flexible rear baffle 2 and the two flexible side baffles 3 comes into contact with the conveyor belt 6, they adapt to the vibration of the conveyor belt 6 (±2mm), resulting in adaptive sealing and good sealing performance. Second, they have the advantage of ultra-high wear resistance. Compared with the traditional fixed baffle design, the wear amount is <80mm. 3 It conforms to the GB / T 9867 standard and can effectively reduce material breakage.
[0026] The feed boot leak-proof device of this embodiment has a simple structure of flexible rear baffle 2 and two flexible side baffles 3, which achieves flexible wear-resistant sealing, self-adaptive sealing, good sealing performance, effectively prevents material leakage, and is economical and practical.
[0027] In one possible implementation, the feed shoe 1 includes a feed hopper 11 and a triangular plate 12. The triangular plate 12 has a notch. The lower part of the feed hopper 11 is fixedly disposed at the notch of the triangular plate 12, and the two are connected. The feed hopper 11 and the triangular plate 12 can be welded together or integrally manufactured. Specifically, the material sequentially enters the conveyor through the feed hopper 11 and the triangular plate 12 and falls onto the conveyor belt 6. The flexible rear baffle 2 is fixedly disposed at the lower part of the feed hopper 11, and the two flexible side baffles 3 are respectively fixedly disposed on the two side walls of the triangular plate 12 and are symmetrically opposite each other. See also Figure 2 The bottoms of the flexible rear baffle 2 and the two flexible side baffles 3 are all located below the feed shoe 1. It should be noted that the flexible rear baffle 2 is relatively large, with its length exceeding the distance between the two flexible side baffles 3.
[0028] As one possible implementation, a pressure plate 4 is also included, which is fixedly disposed on the side of the flexible rear baffle 2. A first screw hole is provided at the lower part of the feed hopper 11, a second screw hole is provided on the flexible rear baffle 2, and a third screw hole is provided on the pressure plate 4. A first bolt 41 passes through the first, second, and third screw holes and is fixedly connected to a first nut 42. The pressure plate 4 is made of a rigid material, and its use ensures that the flexible rear baffle 2 is stably connected to the lower part of the feed hopper 11. The pressure plate 4 and the flexible rear baffle 2 are fixed to the lower part of the feed hopper 11 by the first bolt 41 and the first nut 42. Preferably, a washer is also provided between the first nut 42 and the pressure plate 4 to ensure stability during connection.
[0029] As one possible implementation, both the flexible back baffle 2 and the pressure plate 4 have curved bottoms. The curvature of the bottom of the flexible back baffle 2 is to ensure close contact between the bottom of the flexible back baffle 2 and the conveyor belt 6. The curvature of the bottom of the pressure plate 4 is solely for reducing its own weight.
[0030] As one possible implementation, it also includes two connecting plates 5, which are respectively fixedly mounted on the sidewalls of the triangular plate 12 and are inclined. Two flexible side baffles 3 are respectively fixedly mounted on the two connecting plates 5 and are symmetrically positioned. The connecting plates 5 are made of rigid material, ensuring that the flexible side baffles 3 are stably connected to the sidewalls of the triangular plate 12. Since the sidewalls of the triangular plate 12 are inclined, the connecting plates 5 are also inclined.
[0031] In one possible implementation, each connecting plate 5 includes a horizontal plate 51, a first vertical plate 52, and a second vertical plate 53, wherein the length of the first vertical plate 52 is greater than the length of the second vertical plate 53. The horizontal plate 51 is fixedly mounted on the side wall of the triangular plate 12. The connecting plate 5 is integrally formed, and the first vertical plate 52 and the second vertical plate 53 are fixedly connected to both ends of the horizontal plate 51 and are inclined. The flexible side baffle 3 is fixedly mounted on the first vertical plate 52. Because the side wall of the triangular plate 12 is inclined, the horizontal plate 51 is also inclined.
[0032] In one possible implementation, each of the horizontal plates 51 is provided with a fourth screw hole, and each of the two side walls of the triangular plate 12 is provided with a fifth screw hole. The second bolt 54 passes through the fourth and fifth screw holes and is fixedly connected to the second nut 55. The horizontal plates 51 and the triangular plates 12 are fixedly connected by the second bolt 54 and the second nut 55. Preferably, a washer is also provided between the second nut 55 and the triangular plate 12 to ensure stability during connection.
[0033] In one possible implementation, each of the flexible side baffles 3 is provided with a sixth screw hole, and each of the first upright plates 52 is provided with a seventh screw hole. A third bolt 56 passes through the sixth and seventh screw holes and is fixedly connected to a third nut 57. The flexible side baffles 3 and the first upright plates 52 are fixedly connected by the third bolt 56 and the third nut 57. Preferably, a washer is also provided between the third nut 57 and the flexible side baffle 3 to ensure stability during connection.
[0034] The embodiments described above are merely preferred embodiments of this utility model and are only used to explain this utility model. They are not intended to limit the scope of implementation of this utility model. For those skilled in the art, other implementation methods can be easily made by substitution or modification based on the technical content disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of this utility model should be included within the scope of the patent application of this utility model.
Claims
1. A leak-proof device for a feed boot, characterized in that, It includes a flexible rear baffle (2) and two flexible side baffles (3). The flexible rear baffle (2) is fixedly installed at the end of the feed shoe (1). The two flexible side baffles (3) are symmetrically arranged on both sides of the feed shoe (1) and are inclined. The flexible rear baffle (2) is located to the side of the two flexible side baffles (3). The bottom of the flexible rear baffle (2) and the two flexible side baffles (3) are in contact with the conveyor belt.
2. The feed boot leak-proof device according to claim 1, characterized in that, The feed shoe (1) includes a feed hopper (11) and a triangular plate (12). The triangular plate (12) has a notch. The lower part of the feed hopper (11) is fixedly installed at the notch of the triangular plate (12) and the two are connected. The flexible rear baffle (2) is fixedly installed at the lower part of the feed hopper (11). The two flexible side baffles (3) are respectively fixedly installed on the two side walls of the triangular plate (12) and are symmetrical to each other.
3. The feed boot leak-proof device according to claim 2, characterized in that, It also includes a pressure plate (4), which is fixedly disposed on the side of the flexible rear baffle (2); the lower part of the feed hopper (11) is provided with a first screw hole, the flexible rear baffle (2) is provided with a second screw hole, the pressure plate (4) is provided with a third screw hole, and the first bolt (41) passes through the first screw hole, the second screw hole and the third screw hole and is fixedly connected to the first nut (42).
4. The feed boot leak-proof device according to claim 3, characterized in that, The bottom of both the flexible rear baffle (2) and the pressure plate (4) are curved.
5. The feed boot leak-proof device according to claim 2, characterized in that, It also includes two connecting plates (5), which are respectively fixedly mounted on the side wall of the triangular plate (12) and are inclined, and two flexible side baffles (3) are respectively fixedly mounted on the two connecting plates (5) and are symmetrical to each other.
6. The feed boot leak-proof device according to claim 5, characterized in that, Each of the connecting plates (5) includes a horizontal plate (51), a first vertical plate (52) and a second vertical plate (53). The horizontal plate (51) is fixedly mounted on the side wall of the triangular plate (12). The first vertical plate (52) and the second vertical plate (53) are fixedly connected to the two ends of the horizontal plate (51) and are inclined. The flexible side baffle (3) is fixedly mounted on the first vertical plate (52).
7. The feed boot leak-proof device according to claim 6, characterized in that, Each of the horizontal plates (51) is provided with a fourth screw hole, and each of the two side walls of the triangular plate (12) is provided with a fifth screw hole. The second bolt (54) passes through the fourth screw hole and the fifth screw hole and is fixedly connected to the second nut (55).
8. The feed boot leak-proof device according to claim 6, characterized in that, Each of the first upright plates (52) is provided with a sixth screw hole, and each of the flexible side baffles (3) is provided with a seventh screw hole. The third bolt (56) passes through the sixth screw hole and the seventh screw hole and is fixedly connected to the third nut (57).