Spiral classifier convenient to maintain

Abstract

The spiral classifier convenient to maintain comprises a supporting frame, a groove body is fixedly installed at the top end of the supporting frame, fixing shafts are installed at the two ends of the groove body in an embedded mode, rotating rods are connected to the interiors of the fixing shafts in a penetrating mode, and spiral blade assemblies are installed on the outer rings of the rotating rods. And a driving gear is fixedly installed at the front end of the rotating rod, water injection mechanisms are connected to the two sides of the driving gear, and flow dividing spray heads are connected to the top ends of the water injection mechanisms. According to the spiral classifier convenient to maintain, the spiral blade assembly and the rotating rod are connected in a clamping connection mode, so that the spiral blade body can be disassembled, assembled, maintained and replaced conveniently when the spiral blade body is abraded, the maintenance convenience of the spiral classifier is improved, and in the process that the servo motor drives the rotating rod to rotate, the rotating rod can rotate conveniently. The driving gear can be synchronously driven to rotate, so that the driving gear can drive the water injection mechanism to perform piston motion to continuously inject water into the tank body.

Description

Technical Field

[0001] This utility model relates to the field of mineral processing equipment technology, specifically to a spiral classifier that is easy to maintain. Background Technology

[0002] Spiral classifiers are commonly used mineral processing equipment that mechanically classifies solid particles based on their different specific gravities, which cause them to settle at different rates in a liquid. They are widely used in coal and metal ore sorting and classification operations. However, existing spiral classifiers still have certain shortcomings in their use.

[0003] A spiral classifier, as proposed in application number CN202022118753.6, includes a classification tank, a spiral device rotatably disposed within the classification tank, a drive mechanism for driving the spiral device to rotate, and an overflow weir disposed at the end of the classification tank. The overflow weir is slidably connected to the classification tank, and the classification tank is also provided with an adjustment mechanism for adjusting the height of the overflow weir. The adjustment mechanism includes a bearing seat and a mounting seat, a first rotating shaft, a reel, a lifting belt wound on the reel, a first gear, a second rotating shaft, and a second gear. In actual use, the spiral blades in this spiral classifier are prone to wear during long-term ore lifting. Since the spiral device in this spiral classifier is an integrated structure, it is inconvenient to disassemble and repair the worn spiral blades. Furthermore, a separate drive structure is required during the water injection process inside the tank, preventing linkage with the internal structure and reducing the utilization efficiency of drive resources.

[0004] Therefore, we propose a spiral classifier that is easy to maintain in order to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a spiral classifier that is easy to maintain, in order to solve the problems mentioned in the background art, such as the inconvenience of disassembling and repairing worn spiral blades and the reduced efficiency of drive resource utilization.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a spiral classifier that is easy to maintain, including a support frame.

[0007] A groove is fixedly installed at the top of the support frame, and fixed shafts are fitted at both ends of the groove. A rotating rod is connected through the inside of the fixed shaft. A spiral blade assembly is installed on the outer ring of the rotating rod. A servo motor is connected to the rear end of the rotating rod. The servo motor is fixedly connected to the rear end of the groove through a connecting plate.

[0008] A drive gear is fixedly installed at the front end of the rotating rod. Water injection mechanisms are connected to both sides of the drive gear. A diversion nozzle is connected to the top of the water injection mechanism. The diversion nozzle is fixedly connected to the tank body. An overflow trough is fixedly installed at the front end of the tank body.

[0009] Preferably, the helical blade assembly includes a limiting seat spirally distributed on the outer ring of the rotating rod, a docking block is movably connected inside the limiting seat, a limiting groove is formed inside the docking block, a locking block is slidably installed inside the limiting groove, a spring is connected between the locking block and the limiting groove, a locking groove is formed inside the limiting seat, a connecting rod is fixedly installed on the outer side of the docking block, and the helical blade body is fixedly connected to the outer ring of the connecting rod.

[0010] Preferably, the locking block is telescopically connected to the limiting groove via a spring, and the locking block is engaged with the limiting seat via the locking groove.

[0011] The above-mentioned structural design allows for the positioning and connection between the limit seat and the docking block by controlling the engagement and disengagement between the card block and the card slot. This facilitates the disassembly and assembly of the docking block and the spiral blade body, and improves the maintenance convenience of the spiral classifier.

[0012] Preferably, the water injection mechanism is symmetrically distributed about the center line of the drive gear and the tank, and the pistons of the water injection mechanisms on both sides travel in opposite directions.

[0013] The above-mentioned structural design allows the water injection mechanisms on both sides to continuously draw water from the external source and inject it into the tank through the diversion nozzles. This facilitates the structural linkage between the rotating rod and the spiral blade assembly and the water injection mechanism, thereby improving the utilization efficiency of the driving resources.

[0014] Preferably, the water injection mechanism includes piston boxes fixedly installed on both sides of the front end of the tank. A sealed bearing is embedded in the front end of the piston box. A reciprocating screw is connected through the inside of the sealed bearing. A piston plate is sleeved on the reciprocating screw. The piston plate is slidably connected to the piston box. A driven gear is fixedly installed at the front end of the reciprocating screw. The driven gear meshes with the driving gear. A one-way water inlet pipe and a liquid outlet valve are vertically distributed at the front end of the piston plate. A connecting pipe is installed on one side of the liquid outlet valve. The top end of the connecting pipe is fixedly connected to the diverter nozzle.

[0015] Preferably, the reciprocating screw forms a limiting reciprocating structure with the piston plate and the piston box, and the two ends of the connecting pipe are respectively connected to the liquid outlet valve and the diverting nozzle.

[0016] The above-mentioned structural design facilitates the reciprocating piston motion of the water injection mechanism driven by the active gear. This allows for the extraction of external water sources during the piston motion and its injection into the tank of the easy-to-maintain spiral classifier, thereby improving the structural linkage of the easy-to-maintain spiral classifier.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the spiral classifier is easy to maintain;

[0018] 1. The spiral blade assembly and the rotating rod are connected by a snap-fit ​​connection, which facilitates disassembly, repair and replacement when the spiral blade body is worn, thus improving the maintenance convenience of the spiral classifier;

[0019] 2. During the rotation of the drive rod, the servo motor can synchronously drive the drive gear to rotate. In turn, the drive gear can drive the water injection mechanism to move the piston. The pistons of the two water injection mechanisms move in opposite directions. Therefore, the water injection mechanism can draw water from the external source and spray it continuously through the diversion nozzle. This is beneficial for continuous water injection into the tank, improves the structural linkage between the drive rod and the water injection mechanism, and improves the utilization of drive resources. Attached Figure Description

[0020] Figure 1 This is a side view of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the distribution structure of the spiral blade assembly of this utility model;

[0022] Figure 3 This is a side sectional view of the spiral blade assembly of this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the drive gear and the water injection mechanism of this utility model;

[0024] Figure 5 This is a side sectional view of the water injection mechanism of this utility model.

[0025] In the diagram: 1. Support frame; 2. Tank; 3. Fixed shaft; 4. Rotating rod; 5. Spiral blade assembly; 501. Limit seat; 502. Connecting block; 503. Limit groove; 504. Locking block; 505. Spring; 506. Locking slot; 507. Connecting rod; 508. Spiral blade body; 6. Servo motor; 7. Drive gear; 8. Water injection mechanism; 801. Piston box; 802. Sealed bearing; 803. Reciprocating screw; 804. Piston plate; 805. Driven gear; 806. One-way water inlet pipe; 807. Discharge valve; 808. Connecting pipe; 9. Diverting nozzle; 10. Overflow tank. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a spiral grading machine that is easy to maintain, including a support frame 1, a groove 2 fixedly installed at the top of the support frame 1, fixed shafts 3 fitted at both ends of the groove 2, a rotating rod 4 passing through the inside of the fixed shaft 3, a spiral blade assembly 5 installed on the outer ring of the rotating rod 4, a servo motor 6 connected to the rear end of the rotating rod 4, the servo motor 6 being fixedly connected to the rear end of the groove 2 via a connecting plate, the spiral blade assembly 5 including a limiting seat 501 spirally distributed on the outer ring of the rotating rod 4, a docking block 502 movably connected inside the limiting seat 501, a limiting groove 503 formed inside the docking block 502, a locking block 504 slidably installed inside the limiting groove 503, a spring 505 connecting the locking block 504 and the limiting groove 503, the locking block 504 being connected by the spring 505 The 05 is telescopically connected to the limiting groove 503. The limiting seat 501 has a slot 506 inside, and the locking block 504 is engaged with the limiting seat 501 through the slot 506. The connecting rod 507 is fixedly installed on the outside of the docking block 502, and the spiral blade body 508 is fixedly connected to the outer ring of the connecting rod 507. The above structure design allows the locking block 504 to telescopically move inside the limiting groove 503 by squeezing the locking block 504 and the elastic reset of the locking block 504 by the spring 505, thereby controlling the engagement and disengagement between the locking block 504 and the slot 506, realizing the positioning connection and disengagement of the limiting seat 501 and the docking block 502, which is beneficial for the disassembly and assembly of the docking block 502, the connecting rod 507 and the spiral blade body 508 and the maintenance of the spiral blade body 508.

[0028] A drive gear 7 is fixedly installed at the front end of the rotating rod 4. Water injection mechanisms 8 are connected to both sides of the drive gear 7. The water injection mechanisms 8 are symmetrically distributed about the center line of the drive gear 7 and the tank 2, and the pistons of the water injection mechanisms 8 on both sides travel in opposite directions. A diverter nozzle 9 is connected to the top of the water injection mechanism 8. The water injection mechanism 8 includes piston boxes 801 fixedly installed on both sides of the front end of the tank 2. A sealed bearing 802 is embedded in the front end of the piston box 801. A reciprocating screw is connected through the inside of the sealed bearing 802. A piston plate 804 is sleeved on the reciprocating screw 803. The piston plate 804 is slidably connected to the piston box 801. The reciprocating screw 803 and the piston box 801 form a limiting reciprocating structure through the piston plate 804. A driven gear 805 is fixedly installed at the front end of the reciprocating screw 803. The driven gear 805 meshes with the driving gear 7. A one-way water inlet pipe 806 and a liquid outlet valve 807 are vertically distributed at the front end of the piston plate 804. A connecting pipe 80 is installed on one side of the liquid outlet valve 807. 8. The top end of the connecting pipe 808 is fixedly connected to the diversion nozzle 9. The two ends of the connecting pipe 808 are respectively connected to the outlet valve 807 and the diversion nozzle 9. The diversion nozzle 9 is fixedly connected to the tank body 2. An overflow groove 10 is fixedly installed at the front end of the tank body 2. The above structure design allows the rotating rod 4 to drive the drive gear 7 to rotate when rotating. Then, the meshing connection between the drive gear 7 and the driven gear 805 drives the reciprocating screw 803 to rotate. The reciprocating screw 803 rotates inside the piston box 801 through the sealed bearing 802, and drives the sealed bearing 802 to reciprocate forward and backward inside the piston box 801. This facilitates the extraction of external water source through the one-way water inlet pipe 806 when retracting, and the spraying of water through the outlet valve 807, connecting pipe 808 and diversion nozzle 9 when advancing, so as to achieve continuous water injection inside the tank body 2. Since the pistons on both sides move in opposite directions, continuous and uninterrupted water injection can be achieved inside the tank body 2.

[0029] Working principle: When using this easy-to-maintain spiral classifier, firstly as follows... Figure 1-5As shown, a suitable amount of water is continuously injected into the front end of the tank 2. Then, the servo motor 6 is started to drive the rotating rod 4 and the spiral blade assembly 5 to rotate inside the tank 2. At this time, mineral materials are added into the water at the front end of the tank 2. The rotation of the spiral blade assembly 5 can stir the water and mineral materials to accelerate stratification. During the rotation of the rotating rod 4, it will also drive the drive gear 7 to rotate, so that the drive gear 7 drives the driven gear 805 and the reciprocating screw 803 to rotate. This facilitates the reciprocating screw 803 to rotate through the sealed bearing 802 in the piston box 801. The piston moves, drawing water from the external source through the one-way inlet pipe 806 during the piston's movement. Water is continuously injected into the tank 2 through the outlet valve 807, connecting pipe 808, and diversion nozzle 9. When the water level is higher than the overflow tank 10, it will automatically flow out. At this time, the upper layer of ore will flow out synchronously with the overflow water, while the lower layer of ore will be deposited at the bottom of the front end of the tank 2. This allows the spiral blade assembly 5 to lift the ore during rotation, facilitating subsequent discharge and completing the spiral grading of the ore.

[0030] When the worn spiral blade body 508 needs to be repaired or replaced, the locking block 504 is squeezed and retracted into the limiting groove 503. At this time, the restriction between the docking block 502 and the limiting seat 501 can be released, realizing the disassembly, assembly, repair and replacement of the docking block 502, connecting rod 507 and spiral blade body 508. During installation, the docking block 502 is inserted into the limiting seat 501. At this time, the spring 505 will push the locking block 504 out of the limiting groove 503 and engage with the locking groove 506, so that the limiting seat 501 and the docking block 502 are positioned, realizing the installation and positioning of the connecting rod 507 and spiral blade body 508.

[0031] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spiral classifier that is easy to maintain, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly installed with a groove (2), and the two ends of the groove (2) are fitted with fixed shafts (3). A rotating rod (4) is connected through the inside of the fixed shaft (3). A spiral blade assembly (5) is installed on the outer ring of the rotating rod (4). A servo motor (6) is connected to the rear end of the rotating rod (4). The servo motor (6) is fixedly connected to the rear end of the groove (2) through a connecting plate. The front end of the rotating rod (4) is fixedly installed with a drive gear (7), and the two sides of the drive gear (7) are connected with a water injection mechanism (8). The top of the water injection mechanism (8) is connected with a diversion nozzle (9), and the diversion nozzle (9) is fixedly connected to the tank (2). The front end of the tank (2) is fixedly installed with an overflow trough (10).

2. The spiral classifier with convenient maintenance according to claim 1, characterized in that: The spiral blade assembly (5) includes a limiting seat (501) spirally distributed on the outer ring of the rotating rod (4). A docking block (502) is movably connected inside the limiting seat (501). A limiting groove (503) is opened inside the docking block (502). A locking block (504) is slidably installed inside the limiting groove (503). A spring (505) is connected between the locking block (504) and the limiting groove (503). A locking groove (506) is opened inside the limiting seat (501). A connecting rod (507) is fixedly installed on the outer side of the docking block (502). A spiral blade body (508) is fixedly connected to the outer ring of the connecting rod (507).

3. The spiral classifier with convenient maintenance according to claim 2, characterized in that: The card block (504) is telescopically connected to the limiting groove (503) via a spring (505), and the card block (504) is engaged with the limiting seat (501) via a card groove (506).

4. The spiral classifier with convenient maintenance according to claim 1, characterized in that: The water injection mechanism (8) is symmetrically distributed about the center line of the drive gear (7) and the groove (2), and the pistons of the water injection mechanisms (8) on both sides travel in opposite directions.

5. A spiral classifier that is easy to maintain according to claim 4, characterized in that: The water injection mechanism (8) includes piston boxes (801) fixedly installed on both sides of the front end of the tank (2). A sealed bearing (802) is embedded in the front end of the piston box (801). A reciprocating screw (803) is connected through the inside of the sealed bearing (802). A piston plate (804) is sleeved on the reciprocating screw (803). The piston plate (804) is slidably connected to the piston box (801). A driven gear (805) is fixedly installed at the front end of the reciprocating screw (803). The driven gear (805) meshes with the driving gear (7). A one-way water inlet pipe (806) and a liquid outlet valve (807) are vertically distributed at the front end of the piston plate (804). A connecting pipe (808) is installed on one side of the liquid outlet valve (807). The top end of the connecting pipe (808) is fixedly connected to the diversion nozzle (9).

6. A spiral classifier that is easy to maintain according to claim 5, characterized in that: The reciprocating screw (803) forms a limiting reciprocating structure with the piston box (801) through the piston plate (804), and the two ends of the connecting pipe (808) are respectively connected to the liquid outlet valve (807) and the diverting nozzle (9).

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