Bidirectional quantitative feeding device

Abstract

The utility model discloses a two-way quantitative feeding device, and belongs to the technical field of mine beneficiation production equipment. Comprising two discharging hopper discharging ports formed in the bottom of a discharging hopper and further comprises two feeding trolleys and a double-output-shaft variable-frequency transmission set, two output shafts of the double-output-shaft variable-frequency transmission set are each fixedly provided with a rotating disc, and the rotating discs are connected with the feeding trolleys through rotating arms; and the two feeding trolleys are respectively arranged below the discharge holes of the two blanking funnels. The double-output-shaft speed reducer is adopted, and the two feeding trolleys are used for feeding materials to one or two ball mills at the same time, so that the production efficiency is improved. The feeding amount can be changed according to production requirements by adopting frequency conversion control; the feeding trolley performs one-time reciprocating motion to complete one-time quantitative feeding, quantitative feeding is adopted, material distribution on the surface of the belt is uniform and regular, the replacement and maintenance frequency of the belt is reduced, and the service life of the belt is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mine beneficiation production equipment, in particular to the feeding and conveying links of ore crushing and ore grinding in the beneficiation production process, and specifically to a two-way quantitative feeding device. Background Art

[0002] The ore dressing plant has high requirements for grinding particle size. Reducing the grinding particle size is the key to improving economic benefits. However, crushing is the previous link of grinding. Quantitatively and continuously conveying the material that reaches a certain particle size after crushing to the ball mill can effectively increase the grinding particle size, achieve more crushing and less grinding, and obtain the best economic benefits.

[0003] The materials entering the silo after crushing are quantitatively conveyed to the belt conveyor and then supplied to the ball mill for grinding. The use of two-way quantitative feeding equipment can supply one or two ball mills for grinding at the same time, which not only improves the grinding efficiency and increases the service life of the belt conveyor, but also reduces the production site of crushing and grinding, saving the transportation cost between sites. Utility Model Content

[0004] The utility model aims to provide a two-way quantitative feeding device, which uses simple mechanical principles to complete the two-way quantitative feeding of a ball mill, improves the grinding particle size and efficiency, reduces the damage of the belt conveyor due to uneven force, and rationally plans the use site.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A bidirectional quantitative feeding device comprises two discharge ports 1 arranged at the bottom of the discharge port, two feeding trolleys 4 and a double-output shaft frequency conversion transmission group 5, a rotating disc 6 is fixedly installed on the two output shafts of the double-output shaft frequency conversion transmission group 5, and the rotating disc 6 is connected to the feeding trolley 4 through a rotating arm 8. The two feeding trolleys 4 are respectively placed under the two discharge ports 1 of the discharge port.

[0007] The feeding trolley 4 includes a carriage 9, and axles are arranged on the left and right sides of the bottom of the carriage 9 through axle clamps 10, and wheels 15 are arranged on both ends of the axles. A hanging ear 16 is welded on the side wall of the carriage 9 close to the double-output shaft frequency conversion transmission group 5, and the hanging ear 16 is hinged to one end of the rotating arm 8 through a rotating shaft 14, and the other end of the rotating arm 9 is hinged to the edge of the rotating disc 6.

[0008] A bearing seat is fixed on one end of the rotating arm 9 connected to the rotating disc 6, and a sealing ring 12 and a bearing 13 are installed in the bearing seat. A connecting shaft 11 is fixed on the edge of the rotating disc 6. The outer end of the connecting shaft 11 is inserted into the inner ring of the bearing 13 and fixed by a shaft end retaining ring 17 arranged thereon, and a pressure cover 18 is arranged on the outer side of the bearing seat through a fastener 7.

[0009] Two discharge port baffles 3 are welded on the front and rear sides of the bottom of the discharge port 1 of the discharge hopper, and the lower ends of the two discharge port baffles 3 are inserted into the feeding trolley 4.

[0010] A track is arranged below the discharge port 1 of the feeding hopper, the wheels 15 of the feeding trolley 4 are located on the track, and a track bracket 2 is arranged on the track.

[0011] The double-output shaft variable frequency transmission group 5 is composed of a variable frequency motor, a double-output shaft reducer and a frequency converter, and the two rotating discs 6 are respectively installed on the two output shafts of the double-output shaft reducer.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. The utility model adopts a double-output shaft reducer, and two feeding trolleys feed one or two ball mills at the same time, thereby improving production efficiency.

[0014] 2. The utility model adopts frequency conversion control to change the feeding amount according to production needs; the feeding trolley is set to perform a reciprocating motion to complete a quantitative feeding, and the quantitative feeding is adopted to make the surface of the belt even and regular, reduce the frequency of belt replacement and maintenance, and increase the service life of the belt.

[0015] 3. The utility model has a simple structure, low manufacturing cost, and convenient maintenance and replacement. It uses simple mechanical principles to complete the two-way quantitative feeding of the ball mill, improves the grinding particle size and efficiency, reduces the damage of the belt conveyor due to uneven force, and rationally plans the use site for easy promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 This is a front view of the feeding trolley part of the utility model;

[0019] Figure 4 It is a top view of the feeding trolley part of the utility model;

[0020] In the figure: 1. discharge port of the feeding funnel; 2. track bracket; 3. discharge port baffle; 4. feeding trolley; 5. double-output shaft frequency conversion transmission group; 6. rotating disc; 7. fasteners; 8. rotating arm; 9. carriage; 10. shaft clamp; 11. connecting shaft; 12. sealing ring; 13. bearing; 14. rotating shaft; 15. wheel; 16. hanging ear; 17. shaft end retaining ring; 18. pressure cover. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Example

[0025] like Figure 1-4 The present embodiment provides a bidirectional quantitative feeding device, including two discharge ports 1 arranged at the bottom of the discharge port, the discharge port 1 is a square tube, and the two discharge ports 1 are symmetrical about the longitudinal center line of the upper silo and are welded on the discharge port at a designed distance in the transverse direction; it also includes two feeding carts 4 and a double-output shaft frequency conversion transmission group 5, and a rotating disc 6 is fixedly installed on the two output shafts of the double-output shaft frequency conversion transmission group 5, and the rotating disc 6 is connected to the feeding cart 4 through a rotating arm 8. The rotating disc 6 rotates to drive the feeding cart 4 to reciprocate, and the two feeding carts 4 are respectively placed under the two discharge ports 1 of the discharge port.

[0026] The feeding trolley 4 includes a carriage 9, and axles are arranged on the left and right sides of the bottom of the carriage 9 through axle clamps 10, and wheels 15 are arranged on both ends of the axles. A hanging ear 16 is welded on the side wall of the carriage 9 close to the double-output shaft frequency conversion transmission group 5, and the hanging ear 16 is hinged to one end of the rotating arm 8 through a rotating shaft 14, and the other end of the rotating arm 8 is hinged to the edge of the rotating disc 6.

[0027] A bearing seat is fixed on one end of the rotating arm 8 connected to the rotating disc 6, and a sealing ring 12 and a bearing 13 are installed in the bearing seat. A connecting shaft 11 is fixed on the edge of the rotating disc 6. The connecting shaft 11 passes through the hole on the edge of the rotating disc 6 and is welded thereon. The outer end of the connecting shaft 11 is inserted into the inner ring of the bearing 13 and is fixed in the bearing by a shaft end retaining ring 17 arranged thereon. A pressure cover 18 is arranged on the outer side of the bearing seat through a fastener 7.

[0028] Two discharge port baffles 3 are longitudinally welded on the front and rear sides of the bottom of the discharge port 1 of the discharge funnel. The lower ends of the two discharge port baffles 3 are inserted into the feeding trolley 4 at a certain height from the bottom plate of the carriage 9. The discharge port baffles 3 are used to control the discharge area.

[0029] A track is provided below the discharge port 1 of the feeding hopper, and the wheels 15 of the feeding trolley 4 are located on the track, and a track bracket 2 is provided on the track. The track bracket 2 is installed according to the actual application. If it is small, it can be directly welded and fixed on the feeding hopper; if it is large, a special bracket and base need to be designed for fixing.

[0030] The double-output shaft variable frequency transmission group 5 is composed of a variable frequency motor, a double-output shaft reducer and a frequency converter, and the two rotating discs 6 are respectively installed on the two output shafts of the double-output shaft reducer.

[0031] The operating principle of the utility model is to use a frequency converter and a variable frequency motor to transmit power to a double-output shaft reducer. The two output shafts of the reducer simultaneously drive two feeding carts to reciprocate and convey materials to one or two ball mills through a belt conveyor, thereby completing the quantitative feeding and grinding work of one or two ball mills at the same time. The frequency conversion control can be used to change the feeding amount according to production needs. The rotating arm eccentrically set on the rotating disc drives the feeding cart to reciprocate, and the feeding cart completes one quantitative feeding with one reciprocating movement. Quantitative feeding makes the surface of the belt even and regular, reduces the frequency of belt replacement and maintenance, and increases the service life of the belt.

Claims

1. A bidirectional quantitative feeding device, comprising two discharge ports (1) of a feeding hopper arranged at the bottom of the feeding hopper, characterized in that: It also includes two feeding trolleys (4) and a double-output shaft variable frequency transmission group (5), wherein a rotating disc (6) is fixedly mounted on the two output shafts of the double-output shaft variable frequency transmission group (5), and the rotating disc (6) is connected to the feeding trolley (4) via a rotating arm (8), and the two feeding trolleys (4) are respectively placed below the discharge ports (1) of the two feeding hoppers.

2. A two-way quantitative feeding device according to claim 1, characterized in that: The feeding trolley (4) comprises a carriage (9), axles are arranged on the left and right sides of the bottom of the carriage (9) through axle clamps (10), wheels (15) are arranged on both ends of the axles, and a hanging ear (16) is welded on the side wall of the carriage (9) close to the double-output shaft variable frequency transmission group (5), the hanging ear (16) is hinged to one end of the rotating arm (8) through a rotating shaft (14), and the other end of the rotating arm (8) is hinged to the edge of the rotating disc (6).

3. A two-way quantitative feeding device according to claim 1, characterized in that: A bearing seat is fixed on one end of the rotating arm (8) connected to the rotating disc (6), and a sealing ring (12) and a bearing (13) are installed in the bearing seat. A connecting shaft (11) is fixed on the edge of the rotating disc (6). The outer end of the connecting shaft (11) is inserted into the inner ring of the bearing (13) and fixed by a shaft end retaining ring (17) arranged thereon. A pressure cover (18) is arranged on the outer side of the bearing seat through a fastener (7).

4. A two-way quantitative feeding device according to claim 1, characterized in that: Two discharge port baffles (3) are welded on the front and rear sides of the bottom of the discharge port (1) of the discharge hopper, and the lower ends of the two discharge port baffles (3) are inserted into the feeding trolley (4).

5. A bidirectional quantitative feeding device according to claim 2, characterized in that: A track is provided below the discharge port (1) of the feeding hopper, the wheels (15) of the feeding trolley (4) are located on the track, and a track bracket (2) is provided on the track.

6. A two-way quantitative feeding device according to claim 1, characterized in that: The double-output shaft variable frequency transmission group (5) is composed of a variable frequency motor, a double-output shaft reducer and a frequency converter, and the two rotating discs (6) are respectively mounted on the two output shafts of the double-output shaft reducer.

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