A spiral feeder

Abstract

This utility model discloses a screw feeder, belonging to the technical field of transportation equipment. It includes a first feeding pipe with a central rod inside. A screw plate is fixed to the outer wall of the central rod, and one end of the central rod extends outside the first feeding pipe. A support plate is fixed to the outer end of the first feeding pipe, and a power motor is fixed to the support plate. The output shaft of the power motor is poweredly connected to the central rod. The first feeding pipe has a break, and a sleeve assembly is provided at the break. The sleeve assembly includes an adjusting cylinder that is rotatably engaged within the break. An inlet is opened on the outer wall of the adjusting cylinder, and an external toothed ring is fixed to the outer wall of one end edge of the adjusting cylinder. A drive motor is fixed to the outer wall of the first feeding pipe, and the output shaft of the drive motor is poweredly engaged with the external toothed ring. This feeder separates the first and second feeding pipes through a telescopic mechanism, facilitating maintenance and cleaning. The adjusting cylinder can flexibly adjust the position of the inlet, supporting reverse discharge. A braking device fixes the central rod to ensure maintenance safety.

Description

Technical Field

[0001] This utility model specifically relates to a spiral feeder, belonging to the technical field of cam dividers. Background Technology

[0002] In mining operations, efficient material transport is a key link to ensure smooth production processes and improve mining efficiency. With the continuous expansion of mining scale and the increasing demands for mining efficiency, there are higher requirements for the performance, reliability and adaptability of material transport equipment.

[0003] Screw conveyors are a commonly used transportation equipment for ore loading and transportation. The material is propelled by the continuously rotating screw blades, thereby achieving transportation.

[0004] For example, Chinese invention patent application CN119821955A proposes an inclined screw feeder. Its technical solution includes a base plate and a feeding mechanism fixed to the top of the base plate. The feeding mechanism includes a feeding box located at the top of the base plate. A damping mechanism is provided on one side of the outer wall of the feeding box, and a support plate is fixedly connected to the bottom of the feeding box. An angle adjustment mechanism is provided at the bottom of the support plate. The damping mechanism includes a second damping disc fixed to one side of the feeding box. The side of the second damping disc away from the feeding box is fixedly connected to a first damping disc via multiple threaded connecting rods. This inclined screw feeder invention dampens the vibration generated by the threaded conveying rod, preventing damage to the external structure, creating gaps, affecting conveying efficiency, and providing more stable conveying. It also has an angle adjustment function, making it more convenient to convey materials to containers at different angles.

[0005] In mining, it is difficult to control the uniformity of ore particle size, and the material itself has a certain mass. Therefore, blockages may occur during transportation, especially in the working scenario shown in the above document. Adjusting the feeding angle will change the transportation state of the material. Blockage of the material will greatly affect production. Moreover, traditional equipment is enclosed, and disassembly and maintenance are cumbersome and difficult. Therefore, this utility model is proposed. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of the existing technology by providing a screw feeder that can solve the problems of cumbersome disassembly and maintenance in the existing technology.

[0007] A spiral feeder includes a first feeding pipe with a central rod inside. A spiral plate is fixed on the outer wall of the central rod. One end of the central rod extends outside the first feeding pipe, and a support plate is fixed to the outer end of the first feeding pipe. A power motor is fixed on the support plate. The output shaft of the power motor is poweredly connected to the central rod. The power motor can drive the central rod to rotate, thereby realizing the transportation of materials through the spiral plate. The support plate is also spaced between the power motor and the first feeding pipe, as well as a base component for mounting a stabilizing frame on one side.

[0008] The first feeding pipe has a break, the upper and lower parts of which are through or completely disconnected. A sleeve assembly is provided at the break, the sleeve assembly including an adjusting cylinder that is rotatably engaged in the break. An inlet is provided on the outer wall of the adjusting cylinder for receiving falling ore material. In application, an external toothed ring is fixed on the outer wall of one end edge of the adjusting cylinder, and a drive motor is fixed on the outer wall of the first feeding pipe. The output shaft of the drive motor and the external toothed ring are dynamically engaged.

[0009] The two sides of the fracture are fixed with a stabilizing frame by bolt connection. The first feeding pipe is fixed with a base component for installation with the stabilizing frame. The outer wall of the first feeding pipe is cylindrical. The base component is used to fix the stabilizing frame. The stabilizing frame is used to assist in fixing the structure on both sides of the fracture.

[0010] One end of the first feeding pipe is open and connected to the second feeding pipe via a telescopic mechanism. One end of the central rod passes through the second feeding pipe, and the other end of the central rod extends out of the second feeding pipe.

[0011] The bottom of the second feeding pipe is provided with a discharge port, and a braking device is installed on the outside of the second feeding pipe. The discharge port is used to discharge the transported material.

[0012] The braking device includes a mounting back plate fixed to the second feeding pipe, an electric telescopic rod fixed to the mounting back plate, a braking pad fixed to one end of the electric telescopic rod, a sliding rod fixed to the side wall of the braking pad, a sliding hole opened on the mounting back plate, and one end of the sliding rod passing through the sliding hole. The braking device is used to fix the center rod, thereby preventing the center rod from rotating.

[0013] The central rod is provided with a plug-in joint, which is located between the first feeding pipe and the second feeding pipe. The central rod and the spiral plate at the plug-in joint are both in a broken state, while the central rods at the interface are mutually locked and can be separated and reconnected.

[0014] The telescopic mechanism includes a hydraulic push rod fixed to the outer wall of the first feeding pipe. One end of the hydraulic push rod is fixed to the outer wall of the second feeding pipe via a connecting block. The telescopic mechanism is used to push away the second feeding pipe, thereby causing the second feeding pipe, along with a section of the central rod inside, to move away from the first feeding pipe. To ensure the stability of the central rod's position, one end of the central rod is rotatably engaged with the second feeding pipe. The mechanism can also increase the auxiliary engagement and fixation of the central rod by the second feeding pipe, such as by thickening the corresponding engagement range or adding an additional fixing cylinder to limit the position of the central rod. When the pipe is closed again, it needs to be manually cleaned to ensure that there are no impurities before it can be used again.

[0015] A limiting rod is fixed at the upper part of the first feeding tube, and one end of the limiting rod extends along the length of the second feeding tube. A limiting shell is fixed on the second feeding tube, and the limiting shell is snapped onto the limiting rod. The limiting rod is used to stabilize the movement trajectory of the second feeding tube.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. Convenient maintenance: The telescopic mechanism between the first and second feeding pipes drives the second feeding pipe away from the first feeding pipe, simultaneously causing the central rod to separate at the insertion point. The structural design of the central rod and spiral plate at the insertion point, which break but are locked and limited, makes it easy for personnel to clean or observe the separated first and second feeding pipes. Compared with the traditional closed structure equipment that requires overall disassembly for maintenance, this significantly reduces the difficulty and time cost of maintenance operations.

[0018] 2. Flexible feeding adjustment: A rotating locking adjustment cylinder is set at the break point of the first feeding pipe. The position of the feeding port can be flexibly adjusted by driving the external gear ring through the drive motor. When it is necessary to discharge the contents, the material can be discharged in reverse. The two sides of the break point are fixed with the seat components by bolt-connected stabilizing brackets, which not only ensures the structural stability of the break point, but also facilitates the quick separation of the two sides of the break point by removing the bolts, providing operating space for the maintenance of internal components.

[0019] 3. Maintenance Safety Assurance: The braking device installed on the outside of the second feeding pipe drives the braking pad to abut the center rod through an electric telescopic rod. With the guidance of the sliding rod along the sliding hole, the center rod can be quickly fixed to prevent accidental rotation. When separating or connecting the center rod, it effectively prevents component collisions or operational errors caused by the rotation of the center rod, thus improving the safety of maintenance operations.

[0020] 4. Stable telescopic trajectory: The limiting rod at the top of the first feeding tube engages with the limiting shell of the second feeding tube. When the hydraulic push rod drives the second feeding tube to telescopically move, it restricts its radial deviation and maintains its axial movement trajectory. This ensures that the center rod insertion point is precisely aligned when the second feeding tube and the first feeding tube rejoin, avoiding jamming or installation difficulties caused by positional deviations and improving the efficiency of reassembly after equipment maintenance. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the sleeve assembly structure of this utility model;

[0023] Figure 3 This is a cross-sectional view of the sleeve assembly of this utility model;

[0024] Figure 4 This is a schematic diagram of the telescopic mechanism structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the insertion point structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the braking device of this utility model.

[0027] In the diagram: 1. First feeding pipe; 2. Center rod; 201. Spiral plate; 202. Insertion point; 3. Power motor; 4. Sleeve assembly; 401. Adjusting cylinder; 402. Feed inlet; 403. Drive motor; 404. Stabilizing frame; 5. Second feeding pipe; 501. Discharge outlet; 6. Braking device; 601. Mounting back plate; 602. Electric telescopic rod; 603. Braking pad; 604. Sliding rod; 7. Telescopic mechanism; 701. Hydraulic push rod; 702. Limiting rod; 703. Limiting shell. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6 As shown, a screw feeder includes a first feeding pipe 1, a central rod 2 inside the first feeding pipe 1, a screw plate 201 fixed on the outer wall of the central rod 2, one end of the central rod 2 extending to the outside of the first feeding pipe 1, and a support plate fixed to the outside of the end of the first feeding pipe 1. A power motor 3 is fixed on the support plate, and the output shaft of the power motor 3 is poweredly connected to the central rod 2. The power motor 3 can drive the central rod 2 to rotate, thereby realizing the transportation of materials through the screw plate 201. A support plate is also spaced between the power motor 3 and the first feeding pipe 1, as well as a seat component for mounting a stabilizing frame 404 on one side.

[0030] The first feeding pipe 1 has a break, the upper and lower parts of which are in a through state or completely disconnected. A sleeve assembly 4 is provided at the break. The sleeve assembly 4 includes an adjusting cylinder 401 that is rotatably engaged in the break. An inlet 402 is opened on the outer wall of the adjusting cylinder 401. The inlet 402 is used to receive the falling ore material. In application, an external toothed ring is fixed on the outer wall of one end edge of the adjusting cylinder 401. A drive motor 403 is fixed on the outer wall of the first feeding pipe 1. The output shaft of the drive motor 403 and the external toothed ring are dynamically engaged.

[0031] Stabilizing brackets 404 are fixed on both sides of the fracture by bolt connection. A base component is fixed on the first feeding pipe 1 to cooperate with the installation of the stabilizing bracket 404. The outer wall of the first feeding pipe 1 is cylindrical. The base component is used to cooperate with and fix the stabilizing bracket 404. The stabilizing bracket 404 is used to assist in fixing the structure on both sides of the fracture.

[0032] One end of the first feeding pipe 1 is open and connected to the second feeding pipe 5 through the telescopic mechanism 7. One end of the central rod 2 passes through the second feeding pipe 5, and the other end of the central rod 2 passes out of the second feeding pipe 5.

[0033] The bottom of the second feeding pipe 5 is provided with a discharge port 501, and a braking device 6 is installed on the outside of the second feeding pipe 5. The discharge port 501 is used to discharge the transported material.

[0034] The braking device 6 includes a mounting back plate 601 fixed on the second feeding pipe 5. An electric telescopic rod 602 is fixed on the mounting back plate 601. A braking pad 603 is fixed to one end of the electric telescopic rod 602. A sliding rod 604 is fixed on the side wall of the braking pad 603. A sliding hole is provided on the mounting back plate 601. One end of the sliding rod 604 passes through the sliding hole. The braking device 6 is used to fix the center rod 2, thereby preventing the center rod 2 from rotating.

[0035] The center rod 2 is provided with a plug-in 202, which is located between the first feeding pipe 1 and the second feeding pipe 5. The center rod 2 and the spiral plate 201 of the plug-in 202 are both in a broken state, while the center rods 2 at the interface are mutually locked and can be separated and reconnected.

[0036] The telescopic mechanism 7 includes a hydraulic push rod 701 fixed on the outer wall of the first feeding pipe 1. One end of the hydraulic push rod 701 is fixed to the outer wall of the second feeding pipe 5 via a connecting block. The telescopic mechanism 7 is used to push away the second feeding pipe 5, thereby causing the second feeding pipe 5, together with a section of the central rod 2 inside, to move away from the first feeding pipe 1. In order to ensure the stability of the position of the central rod 2, one end of the central rod 2 is rotated and locked with the second feeding pipe 5, and the auxiliary locking and fixing of the second feeding pipe 5 to the central rod 2 can be increased, such as thickening the corresponding locking range and adding an additional fixing cylinder to limit the position of the central rod 2. When re-closing, manual cleaning is required to confirm that there are no impurities before use.

[0037] A limiting rod 702 is fixed at the upper part of the first feeding pipe 1. One end of the limiting rod 702 extends in the length direction of the second feeding pipe 5. A limiting shell 703 is fixed on the second feeding pipe 5. The limiting shell 703 is snapped onto the outside of the limiting rod 702. The limiting rod 702 is used to stabilize the movement trajectory of the second feeding pipe 5.

[0038] During material transportation, the power motor 3 starts and drives the center rod 2 to rotate. The spiral plate 201 on the outer wall of the center rod 2 rotates synchronously. The material enters the first feeding pipe 1 from the inlet 402 on the outer wall of the adjusting cylinder 401. Under the propulsion of the spiral plate 201, it is transported along the first feeding pipe 1 to the second feeding pipe 5, and finally discharged through the outlet 501 at the bottom of the second feeding pipe 5.

[0039] When it is necessary to discharge the internal material, the feed inlet 402 can be turned downward by rotating the adjusting cylinder 401 in the opposite direction, and then the center rod 2 can be rotated in the opposite direction to achieve reverse discharge of the material; the stabilizing frame 404 on both sides of the break is fixed to the base component by bolts to ensure the structural stability of the first feed pipe 1 on both sides of the break.

[0040] During maintenance, firstly, the braking device 6 is activated. The electric telescopic rod 602 extends, pushing the braking pad 603 to abut the center rod 2. The sliding rod 604 moves along the sliding hole of the mounting back plate 601, fixing the center rod 2 to prevent accidental rotation. Then, the hydraulic push rod 701 of the telescopic mechanism 7 is activated, pushing the second feeding pipe 5 away from the first feeding pipe 1 through the connecting block. A section of the center rod 2 inside the second feeding pipe 5 moves with it, and the center rod 2 separates at the insertion point 202. At the same time, the limiting rod 702 on the upper part of the first feeding pipe 1 engages with the limiting shell 703 of the second feeding pipe 5, limiting the radial displacement of the second feeding pipe 5 and maintaining its axial movement trajectory, ensuring a stable separation process. After separation, personnel can directly clean or observe the internal components of the first feeding pipe 1 and the second feeding pipe 5 to perform unblocking operations. After maintenance is completed, the hydraulic push rod 701 retracts, causing the second feeding pipe 5 to reset, and the insertion point 202 of the center rod 2 reconnects. If there are any impurities adhering to it, manual cleaning is required. Then, the material transport function is restored.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that 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, and 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 screw feeder, characterized by: Includes a first feeding pipe (1), a central rod (2) is provided inside the first feeding pipe (1), a spiral plate (201) is fixed on the outer wall of the central rod (2), one end of the central rod (2) extends to the outside of the first feeding pipe (1), and a support plate is fixed to the outside of the end of the first feeding pipe (1), a power motor (3) is fixed on the support plate, and the output shaft of the power motor (3) is poweredly connected to the central rod (2); The first feeding pipe (1) has a break, and a sleeve assembly (4) is provided at the break. The sleeve assembly (4) includes an adjusting cylinder (401) that is rotatably engaged in the break. An inlet (402) is provided on the outer wall of the adjusting cylinder (401). An external toothed ring is fixed on the outer wall of one end edge of the adjusting cylinder (401). A drive motor (403) is fixed on the outer wall of the first feeding pipe (1). The output shaft of the drive motor (403) and the external toothed ring are dynamically engaged. The two sides of the break are fixed with a stabilizing frame (404) by bolt connection, and the first feeding pipe (1) is fixed with a base component for installation in conjunction with the stabilizing frame (404).

2. A screw feeder as claimed in claim 1, characterized in that: One end of the first feeding pipe (1) is open and connected to the second feeding pipe (5) through the telescopic mechanism (7). One end of the central rod (2) passes through the second feeding pipe (5), and the other end of the central rod (2) passes out of the second feeding pipe (5).

3. A screw feeder as claimed in claim 2, characterized in that: The bottom of the second feeding pipe (5) is provided with a discharge port (501), and a braking device (6) is installed on the outside of the second feeding pipe (5).

4. A screw feeder as claimed in claim 3, characterized in that: The braking device (6) includes a mounting back plate (601) fixed on the second feeding pipe (5), an electric telescopic rod (602) fixed on the mounting back plate (601), a braking pad (603) fixed at one end of the electric telescopic rod (602), a sliding rod (604) fixed on the side wall of the braking pad (603), a sliding hole opened on the mounting back plate (601), and one end of the sliding rod (604) passing through the sliding hole.

5. The screw feeder as described in claim 2, characterized in that: The center rod (2) is provided with a plug (202), which is located between the first feeding pipe (1) and the second feeding pipe (5).

6. The screw feeder as described in claim 5, characterized in that: The telescopic mechanism (7) includes a hydraulic push rod (701) fixed on the outer wall of the first feeding pipe (1), and one end of the hydraulic push rod (701) is fixed to the outer wall of the second feeding pipe (5) through a connecting block.

7. The screw feeder as described in claim 6, characterized in that: A limiting rod (702) is fixed at the upper part of the first feeding pipe (1). One end of the limiting rod (702) extends toward the length direction of the second feeding pipe (5). A limiting shell (703) is fixed on the second feeding pipe (5). The limiting shell (703) is snapped onto the limiting rod (702).

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