An adjustable feed box

Abstract

This utility model relates to the field of cement clinker production technology, specifically to an adjustable spreading box. It solves the problems of inconvenient adjustment and unstable support structure by using diamond-shaped jacks to support the spreading plate, greatly improving stability and robustness. Both the drive screw and the adjusting rod can be adjusted from the rear of the box, making adjustment convenient. The box includes a top surface with a feed inlet and a front surface with a discharge outlet. Inside the box are spreading plates facing the discharge outlet and inclined. Below the spreading plates, there is an adjusting plate that can move back and forth. A diamond-shaped jack is mounted on the adjusting plate, with its upper end hinged to the bottom surface of the spreading plate. The rear end of the drive screw of the diamond-shaped jack penetrates the rear side wall of the box. At least one adjusting rod is located on the exterior of the rear side wall of the box, with its front end penetrating the rear side wall and fixedly connected to the adjusting plate.

Description

Technical Field

[0001] This utility model relates to the field of cement clinker production technology, specifically to an adjustable spreading box. Background Technology

[0002] In cement clinker production, the rising flue of each stage of the cyclone preheater and the decomposition furnace are equipped with a spreading box with a spreading plate. After the material is separated and collected by the cyclone, it falls onto the spreading plate through the airlock valve, the discharge pipe and the special guide pipe, and then the material is scattered and dispersed into the next equipment.

[0003] The prior art, patent number CN201820323666.4, discloses a device for improving the feeding homogenization of a rotary kiln preheater. It includes a wide-angle, adjustable-impact spreading box (2), with an inlet at the top and an outlet (6) on its side. The bottom plate inside the spreading box (2) is fitted with spreading plates (5) facing the outlet (6) by inserting length and angle adjustment devices. However, this technology has a drawback: when adjusting the spreading plates, adjustments must be made from the rear and bottom of the box. In production lines, other equipment is often located below the spreading box, making adjustments from below inconvenient and limiting the adjustment range. Furthermore, since the spreading plates directly bear the impact force of the material, this force is transmitted to their supporting structure, leading to instability and increased maintenance costs. Utility Model Content

[0004] This utility model provides an adjustable material spreading box, which solves the problems of inconvenient adjustment and unstable support structure. The material spreading plate is supported by a diamond-shaped jack, which greatly improves stability and firmness. Both the drive screw and the adjusting rod can be adjusted from the rear of the box, making adjustment convenient.

[0005] This utility model is achieved through the following technical solution:

[0006] An adjustable material spreading box includes a box body, the top surface of which is provided with a material inlet and the front side of which is provided with a material outlet. The box body is provided with a spreading plate that faces the material outlet and is inclinedly distributed. The box body is provided with an adjustment plate that can move back and forth below the spreading plate. The adjustment plate is provided with a diamond-shaped jack. The upper end of the diamond-shaped jack is hinged to the bottom surface of the spreading plate. The rear end of the drive screw of the diamond-shaped jack passes through the rear side wall of the box body.

[0007] At least one adjusting rod is provided on the outside of the rear side wall of the box, and the front end of the adjusting rod passes through the rear side wall of the box and is fixedly connected to the adjusting plate.

[0008] Furthermore, there are two adjusting rods, and U-shaped ear plates are respectively provided on the front ends of the left and right sides of the adjusting plate. The bottom of the spreading plate is rotatably connected to the U-shaped ear plates through the ear plates and the pin shaft. The front end of the adjusting rod is fixedly connected to the bottom of the U-shaped ear plates.

[0009] The upper end of the diamond-shaped jack is hinged to a connecting rod, and the other end of the connecting rod is hinged to the bottom of the spreading plate.

[0010] Furthermore, the bottom of the housing is provided with two sets of auxiliary guiding devices corresponding to the U-shaped ear plates;

[0011] The auxiliary guiding device includes two upright plates symmetrically distributed on the left and right. The upright plates are provided with guide holes distributed on the front and back. The pins mounted on the U-shaped ear plate are slidably connected at both ends to the guide holes of the two upright plates.

[0012] Furthermore, the bottom of the housing is provided with two supporting vertical plates, which are located on the left and right sides of the adjustment plate, respectively. The side of the supporting vertical plate near the adjustment plate is provided with a guide rail groove, and the side of the adjustment plate is slidably connected in the guide rail groove.

[0013] Furthermore, the rear exterior of the housing is provided with two C-shaped plates, the adjusting rod is a threaded rod, the rear end of the adjusting rod passes through the C-shaped plate, and two locking nuts are threadedly connected to the adjusting rod, the two locking nuts being located on the front and rear sides of the C-shaped plate.

[0014] Furthermore, two C-shaped plates are provided on the rear exterior of the housing, the adjusting rod is a lead screw, the rear end of the adjusting rod passes through the C-shaped plate, a hand-cranked worm gear screw jack is fixed on the C-shaped plate, and the rear section of the adjusting rod is assembled into the housing of the hand-cranked worm gear screw jack to serve as a lifting lead screw.

[0015] Furthermore, the rear side of the housing has an operating port that extends vertically, and the outer side of the operating port is provided with a sealing door that can be opened and closed. The rear end of the drive screw extends into the operating port.

[0016] Furthermore, the rear end of the drive screw is provided with transversely distributed through holes.

[0017] The beneficial effects achieved by this utility model compared with the prior art are as follows:

[0018] 1. The diamond-shaped jack not only allows for easy adjustment of the tilt angle of the spreading plate, but also improves stability and robustness, making it suitable for environments with material impact. The adjusting rod controls the front and rear positions of the adjusting plate and the diamond-shaped jack, and adjusts the extension length of the spreading plate. The adjusting ends of the drive screw and the adjusting rod are located on the rear side of the housing, allowing operators to make adjustments from the rear of the housing, making adjustments convenient and quick.

[0019] This utility model has a compact and stable overall structure and a long service life;

[0020] 2. U-shaped ear plates are provided on the left and right front ends of the adjustment plate. The bottom of the spreading plate is rotatably connected to the U-shaped ear plates through the ear plates and the pin shaft. The left and right ends of the pin shaft mounted on the U-shaped ear plates are slidably connected in the guide holes of the two vertical plates. At the same time, the spreading plate is hinged with the diamond jack, which greatly improves the stability of the spreading plate and ensures that the spreading plate has good impact resistance.

[0021] 3. Two locking nuts are threaded onto the adjusting rod. The two locking nuts are located on the front and rear sides of the C-shaped plate. The adjusting rod can be fixed by the two locking nuts. The operation is simple and convenient and the use is flexible.

[0022] 4. A hand-cranked worm gear screw jack is fixed on the C-shaped plate. The rear section of the adjusting rod is assembled into the housing of the hand-cranked worm gear screw jack to serve as the lifting screw. The adjusting rod is moved back and forth by controlling the hand-cranked worm gear screw jack, making it more flexible and convenient to use.

[0023] 5. A sealing door that can be opened and closed is provided on the outside of the operating port to prevent serious air leakage from the box. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the adjustable feed box described in this utility model;

[0025] Figure 2 This is a three-dimensional view of the back of the adjustable feed box described in this utility model;

[0026] Figure 3 This is a side view of the internal structure of the adjustable feed box described in this utility model;

[0027] Figure 4 This is a schematic diagram showing the connection between the adjusting plate and the U-shaped ear plate described in this utility model;

[0028] Figure 5 This is a schematic diagram of the rhomboid jack described in this utility model;

[0029] Figure 6 This is a schematic diagram showing the connection between the hand-cranked worm gear screw jack and the C-shaped plate described in this utility model;

[0030] In the diagram: 1. Box body, 2. Spreading plate, 3. Adjusting plate, 4. Diamond-shaped jack, 5. Drive screw, 6. Adjusting rod, 7. U-shaped ear plate, 8. Connecting rod, 9. Vertical plate, 10. Supporting vertical plate, 11. C-shaped plate, 12. Locking nut, 13. Operating port, 14. Sealing door, 15. Hand-cranked worm gear screw jack, 16. Handwheel. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] In the description of the utility model, it should be understood that the terms "front", "rear", "up", "down", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0033] Example 1

[0034] like Figures 1-5 As shown, this embodiment discloses an adjustable material spreading box, which mainly includes a box body 1, a spreading plate 2, a diamond-shaped jack 4, an adjusting plate 3, and an adjusting rod 6. The top surface of the box body 1 is set as a material inlet, and the front side is set as a material outlet. The spreading plate 2 is set inside the box body 1 and is inclined towards the material outlet.

[0035] The adjusting plate 3 is located inside the box 1 and below the spreading plate 2, and can move back and forth. To facilitate its movement, two supporting vertical plates 10 are welded to the bottom of the box 1. The two supporting vertical plates 10 are located on the left and right sides of the adjusting plate 3, respectively. A guide rail groove is machined on the side of the supporting vertical plate 10 closest to the adjusting plate 3, so that the side of the adjusting plate 3 is slidably connected in the guide rail groove, thereby facilitating the back and forth movement of the adjusting plate 3.

[0036] The bottom of the rhomboid jack 4 is fixed to the adjusting plate 3 by bolts. The rhomboid jack 4 includes a drive screw 5, which controls the overall lifting and lowering. A connecting rod 8 is hinged to the upper end of the rhomboid jack 4, and the other end of the connecting rod 8 is hinged to the bottom of the spreading plate 2. An operating port 13 extending vertically is provided on the rear side of the housing 1. A sealing door 14 that can be opened and closed is installed on the outer side of the operating port 13 by a hinge. The rear end of the drive screw 5 extends into the operating port 13. In order for the operator to control the rotation of the drive screw 5, a horizontally distributed through hole is machined at the rear end of the drive screw 5. The operator can insert a long handle into the through hole to rotate it.

[0037] U-shaped ear plates 7 are welded to the front ends of the left and right sides of the adjusting plate 3, respectively. The bottom of the spreading plate 2 is rotatably connected to the U-shaped ear plates 7 through the ear plates and the pin shaft. There are two adjusting rods 6, located on the outside of the rear side wall of the box 1. The front end of the adjusting rod 6 passes through the rear side wall of the box 1 and is fixedly connected to the bottom of the U-shaped ear plates 7 of the adjusting plate 3. Two C-shaped plates 11 are welded to the outside of the rear side of the box 1. In this embodiment, the adjusting rod 6 is a threaded rod. A light hole is reserved on the C-shaped plate 11 so that the rear end of the adjusting rod 6 passes through the C-shaped plate 11. Two locking nuts 12 are threadedly connected to the adjusting rod 6. The two locking nuts 12 are located on the front and rear sides of the C-shaped plate 11, thereby fixing the adjusting rod 6 to the C-shaped plate 11.

[0038] To improve the stability of the spreading plate 2, two sets of auxiliary guiding devices corresponding to the U-shaped ear plates 7 are installed at the bottom of the housing 1. The auxiliary guiding devices include two symmetrically distributed vertical plates 9, each with guide holes distributed front and back. The pins mounted on the U-shaped ear plates 7 are slidably connected at both ends to the guide holes of the two vertical plates 9. This design allows the vertical plates 9 to share some of the impact force.

[0039] The specific adjustment process of the adjustable feed box described in this embodiment is as follows:

[0040] When it is necessary to adjust the angle and forward extension distance of the spreading plate, open the sealing door 14, then loosen the locking nut 12, control the adjusting rod 6 to move back and forth, so that the adjusting plate 3 and the diamond jack slide back and forth together, changing the front and back position of the spreading plate 2. When it reaches the designated position, tighten the locking nut 12 again to fix the adjusting rod 6 on the C-shaped plate 11.

[0041] Then, control the drive screw 5 to rotate, thereby causing the diamond-shaped jack 4 to lift and lower the rear of the spreading plate 2, thereby changing the overall tilt angle of the spreading plate 2. After the angle adjustment is completed, close the sealing door 14.

[0042] The above solution not only allows for convenient adjustment of the tilt angle of the spreading plate using a diamond-shaped jack, but also improves stability and robustness, making it suitable for environments with material impact. The adjusting rod controls the front and rear position of the adjusting plate and adjusts the extension length of the spreading plate. The adjusting ends of the drive screw and adjusting rod are located on the rear side of the housing, allowing operators to make adjustments from the rear of the housing, making adjustments convenient and quick.

[0043] Example 2

[0044] like Figure 6 As shown, this embodiment discloses an adjustable feed box. To facilitate the adjustment of the forward and backward movement of the adjusting rod 6, a further improvement is made by welding two symmetrically distributed C-shaped plates 11 to the rear exterior of the box body 1. In this embodiment, the adjusting rod 6 is a lead screw, and a pre-drilled hole is provided on the C-shaped plate 11 so that the rear end of the adjusting rod 6 passes through the C-shaped plate 11. A hand-cranked worm gear screw jack 15 is fixed on the C-shaped plate 11. The rear section of the adjusting rod 6 is assembled into the housing of the hand-cranked worm gear screw jack 15 and cooperates with its worm gear to act as a lifting lead screw. The hand-cranked worm gear screw jack 15 includes a handwheel 16, which drives the worm gear transmission mechanism to control the forward and backward movement of the adjusting rod 6. In this embodiment, a conventional SWL worm gear screw jack can be used for the hand-cranked worm gear screw jack 15.

Claims

1. An adjustable material spreading box, comprising a box body (1), wherein the top surface of the box body (1) is provided with a material inlet and the front side is provided with a material outlet, and the box body (1) is provided with material spreading plates (2) facing the material outlet and inclinedly distributed, characterized in that, Inside the housing (1), below the spreading plate (2), there is an adjustable plate (3) that can move back and forth. The adjustable plate (3) is equipped with a diamond-shaped jack (4). The upper end of the diamond-shaped jack (4) is hinged to the bottom surface of the spreading plate (2). The rear end of the drive screw (5) of the diamond-shaped jack (4) passes through the rear side wall of the housing (1). At least one adjusting rod (6) is provided on the outside of the rear side wall of the box (1), and the front end of the adjusting rod (6) passes through the rear side wall of the box (1) and is fixedly connected to the adjusting plate (3).

2. The adjustable spreader box of claim 1, wherein, The number of the adjusting rods (6) is two. The front ends of the left and right sides of the adjusting plate (3) are respectively provided with U-shaped ear plates (7). The bottom of the spreading plate (2) is rotatably connected to the U-shaped ear plates (7) through the ear plates and the pin shaft. The front end of the adjusting rod (6) is fixedly connected to the bottom of the U-shaped ear plates (7). The upper end of the rhomboid jack (4) is hinged to a connecting rod (8), and the other end of the connecting rod (8) is hinged to the bottom of the spreading plate (2).

3. The adjustable spreader box of claim 2, wherein, The bottom of the box (1) is provided with two sets of auxiliary guide devices corresponding to the U-shaped ear plate (7); The auxiliary guiding device includes two upright plates (9) symmetrically distributed on the left and right. The upright plates (9) are provided with guide through holes distributed in the front and back. The pins mounted on the U-shaped ear plate (7) are slidably connected at both ends in the guide holes of the two upright plates (9).

4. The adjustable spreader box of claim 2, wherein, The bottom of the box (1) is provided with two supporting vertical plates (10), which are located on the left and right sides of the adjusting plate (3) respectively. The supporting vertical plate (10) is provided with a guide rail groove on the side of the adjusting plate (3) and the side of the adjusting plate (3) is slidably connected in the guide rail groove.

5. The adjustable spreader box of claim 2, wherein, The rear side of the housing (1) is provided with two C-shaped plates (11). The adjusting rod (6) is a threaded rod. The rear end of the adjusting rod (6) passes through the C-shaped plate (11). Two locking nuts (12) are threadedly connected to the adjusting rod (6). The two locking nuts (12) are located on the front and rear sides of the C-shaped plate (11).

6. The adjustable spreader box of claim 2, wherein, The rear side of the housing (1) is provided with two C-shaped plates (11). The adjusting rod (6) is a lead screw. The rear end of the adjusting rod (6) passes through the C-shaped plate (11). A hand-cranked worm gear screw jack is fixed on the C-shaped plate (11). The rear section of the adjusting rod (6) is assembled into the housing of the hand-cranked worm gear screw jack to serve as a lifting lead screw.

7. The adjustable spreader box of any one of claims 1-6, wherein, The rear side of the housing (1) is provided with an operating port (13) that extends vertically. A sealing door (14) that can be opened and closed is provided on the outside of the operating port (13). The rear end of the drive screw (5) extends into the operating port (13).

8. The adjustable spreader box of claim 7, wherein, The rear end of the drive screw (5) is provided with transversely distributed through holes.

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