Belt conveyor belt load flexible starting speed regulating device

Abstract

This utility model relates to the field of conveyor technology, and particularly to a flexible starting and speed regulating device for belt conveyors under load. It includes a power motor, with the motor end and a gearbox fixedly connected. An output shaft is located at the end of the gearbox furthest from the power motor. An oil tank is located on the upper side of the gearbox, and a regulating valve is located at the lower end of the gearbox. Using oil as the power transmission medium, the transmission is in a flexible connection, achieving slow power output. Simultaneously, the valve core enables stepless power regulation, allowing for load-bearing starting of the power motor.

Description

Technical Field

[0001] This utility model relates to the field of conveyor technology, and in particular to a flexible start-up and speed regulation device for belt conveyors. Background Technology

[0002] Belt conveyors primarily use conveyor belts to transport materials. The materials fall onto the conveyor belt from the upstream feeding system and are transported to the other end of the conveyor. Due to their advantages such as large conveying capacity, simple structure, convenient maintenance, low cost, and strong versatility, they are widely used in industries and fields such as metallurgy, coal, and transportation.

[0003] Existing belt conveyors require no-load startup, especially in emergency shutdown situations, where the material on the belt needs to be cleared before starting.

[0004] Therefore, a flexible starting and speed regulation device for belt conveyors is needed to solve the above problems. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a belt conveyor with flexible starting speed regulation device under load, which can realize the starting of the conveyor under load.

[0006] This utility model provides a flexible starting and speed regulation device for belt conveyors, including a power motor, with the end of the power motor and the gearbox fixedly connected. An output shaft is provided at the end of the gearbox away from the power motor, an oil tank is provided on the upper side of the gearbox, and a regulating valve is provided at the lower end of the gearbox.

[0007] Furthermore, the transmission includes a first housing, a partition, and a second housing that are bolted together in sequence. The partition and the first housing form a first sealed cavity, and the partition and the second housing form a second sealed cavity. Two meshing first gears and second gears are rotatably disposed inside the first housing, and the second gear is fixedly connected to the shaft of the power motor.

[0008] The second housing contains two meshing third and fourth gears, with the third gear coaxially and fixedly connected to the output shaft.

[0009] Furthermore, the first housing has a first oil inlet on its upper side and a first oil outlet on its lower side; the partition has a second oil outlet and a second oil inlet that are interconnected on its upper and lower sides; and the second housing has a third oil outlet and a third oil inlet on its upper and lower sides.

[0010] The first oil inlet, the second oil outlet, and the third oil outlet are all connected to the oil tank.

[0011] Furthermore, the regulating valve includes a valve body, within which are provided a fourth oil inlet, a fourth oil outlet, and a fifth oil outlet that are interconnected. The fourth oil inlet is connected to the first oil outlet, the fourth oil outlet is connected to the second oil inlet, and the fifth oil outlet is connected to the third oil inlet; a valve core is provided inside the fourth oil outlet.

[0012] Furthermore, a servo motor is installed on the side of the valve housing, and a worm gear is fixedly connected to the shaft of the servo motor. The worm gear meshes with a worm wheel, and a lead screw is fixedly connected to the worm wheel on the same axis. The lead screw is threadedly connected to the valve core, and the valve core is slidably connected inside the valve housing. The valve core and the fourth oil outlet are set perpendicular to each other.

[0013] Furthermore, the valve core includes a blocking part and a flow part, both of which are cylindrical, with the diameter of the flow part being smaller than that of the blocking part.

[0014] The beneficial effects of this utility model using the above structure are that, by using oil as the power transmission medium, the transmission is in a soft connection, realizing the slow output of power, and at the same time, by using the valve core to realize stepless adjustment of power, it is possible to realize the starting of the power motor under load. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0017] Figure 3 This is a schematic diagram of the partial explosion structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the present invention from another perspective of a localized explosion;

[0019] Figure 5 This is another exploded structural diagram of the present invention;

[0020] Figure 6 This is a schematic diagram of the regulating valve structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the partially exploded structure of the regulating valve of this utility model;

[0022] Figure 8 This is a cross-sectional view of the regulating valve of this utility model.

[0023] Among them, 1 is a power motor;

[0024] 2. Transmission; 21. First housing; 211. First oil inlet; 212. First oil outlet; 213. First gear; 214. Second gear; 22. Partition; 221. Second oil outlet; 222. Second oil inlet; 23. Second housing; 231. Third oil outlet; 232. Third oil inlet; 233. Third gear; 234. Fourth gear; 24. Output shaft;

[0025] 3. Regulating valve, 31. Valve body, 311. Fourth oil inlet, 312. Fourth oil outlet, 313. Fifth oil outlet, 32. Servo motor, 321. Worm gear, 322. Worm wheel, 323. Lead screw, 33. Valve core, 331. Blocking part, 332. Flow part;

[0026] 4. Fuel tank.

[0027] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1-8 As shown, this utility model provides a flexible starting speed regulation device for a belt conveyor, including a power motor 1, with the end of the power motor 1 and a gearbox 2 fixedly connected. An output shaft 24 is provided at the end of the gearbox 2 away from the power motor 1. The output shaft 24 is connected to the drum of the conveyor and is used to drive the drum to rotate, thereby driving the conveyor belt to rotate. An oil tank 4 is provided on the upper side of the gearbox 2, and a regulating valve 3 is provided at the lower end of the gearbox 2.

[0030] The oil tank 4 is used to store oil, which serves as the power transmission medium to realize the power transmission between the power motor 1 and the output shaft 24. The regulating valve 3 is used to regulate the flow rate of the oil to realize the speed change of the output shaft 24.

[0031] See Figure 2 and Figure 5 The transmission 2 includes a first housing 21, a partition 22, and a second housing 23 that are bolted together in sequence. The partition 22 and the first housing 21 form a first sealed cavity, and the partition 22 and the second housing 23 form a second sealed cavity. Two meshing first gears 213 and second gears 214 are rotatably disposed inside the first housing 21. The second gears 214 are fixedly connected to the rotating shaft of the power motor 1.

[0032] The second housing 23 contains two meshing third gears 233 and fourth gears 234, with the third gear 233 coaxially and fixedly connected to the output shaft 24.

[0033] The rotation of the power motor 1 drives the first gear 213 and the second gear 214 to rotate, which in turn drives the oil to flow into the second housing 23. The oil drives the third gear 233 and the fourth gear 234 inside the second housing 23 to rotate. The third gear 233 outputs power through the output shaft 24.

[0034] See Figure 3 and Figure 4 The first housing 21 has a first oil inlet 211 on its upper side and a first oil outlet 212 on its lower side; the partition 22 has a second oil outlet 221 and a second oil inlet 222 that are interconnected on its upper and lower sides; the second housing 23 has a third oil outlet 231 and a third oil inlet 232 on its upper and lower sides.

[0035] The first oil inlet 211, the second oil outlet 221, and the third oil outlet 231 are all connected to the oil tank 4.

[0036] During operation, the first gear 213 and the second gear 214 inside the first housing 21 drive the oil from the oil tank 4 through the first oil inlet 211 into the first housing 21, and out through the first oil outlet 212. After being regulated by the regulating valve 3, when the oil enters the oil tank 4 through the second oil inlet 222 and the second oil outlet 221 of the partition 22, it does not pass through the second housing 23 and does not drive the third gear 233 and the fourth gear 234 inside the second housing 23 to rotate, so the output shaft 24 has no power output.

[0037] When the oil enters the second housing 23 through the third inlet 232 and flows into the oil tank 4 through the third outlet 231, it drives the third gear 233 and the fourth gear 234 inside the second housing 23 to rotate. The third gear 233 drives the output shaft 24 to rotate, thereby realizing power output.

[0038] See Figures 6-8 The regulating valve 3 includes a valve housing 31, and a fourth oil inlet 311, a fourth oil outlet 312 and a fifth oil outlet 313 that are interconnected. The fourth oil inlet 311 is connected to the first oil outlet 212, the fourth oil outlet 312 is connected to the second oil inlet 222, and the fifth oil outlet 313 is connected to the third oil inlet 232.

[0039] A valve core 33 is installed inside the fourth oil outlet 312. The valve core 33 controls the opening and closing of the fourth oil outlet 312, thereby controlling whether the oil flows out from the fourth oil outlet 312 or the fifth oil outlet 313 after entering from the fourth oil inlet 311. When the fourth oil outlet 312 is in the connected state, the oil flows from the fourth oil outlet 312 into the baffle 22 and then flows back into the oil tank 4, realizing oil circulation.

[0040] When the fourth oil outlet 312 is disconnected, the oil flows into the second housing 23 through the fifth oil outlet 313 and into the oil tank 4 through the third oil outlet 231. During this process, the third gear 233 and the fourth gear 234 in the second housing 23 will rotate, thereby achieving power output.

[0041] See Figure 7 A servo motor 32 is mounted on the side of the valve housing 31. A worm gear 321 is fixedly connected to the shaft of the servo motor 32. The worm gear 321 meshes with a worm wheel 322, which is coaxially fixedly connected to a lead screw 323. The lead screw 323 is threadedly connected to the valve core 33, which is slidably connected inside the valve housing 31. The valve core 33 and the fourth oil outlet 312 are arranged perpendicularly to each other. The rotation of the lead screw 323 drives the valve core 33 to move within the valve housing 31, thereby controlling the opening and closing of the fourth oil outlet 312.

[0042] The valve core 33 includes a blocking part 331 and a flow part 332. Both the blocking part 331 and the flow part 332 are cylindrical, and the diameter of the flow part 332 is smaller than the diameter of the blocking part 331.

[0043] During operation, when the power motor 1 rotates, the valve core 33 controls the fourth oil outlet 312 to be in a connected state, and the oil flows into the oil tank 4 through the partition 22. At this time, the third gear 233 and the output shaft 24 in the second housing 23 are in a connected load state, and the output shaft 24 does not rotate.

[0044] After the power motor 1 starts, the servo motor 32 controls the worm 321, worm wheel 322 and lead screw 323 to rotate. The lead screw 323 drives the valve core 33 to move. The valve core 33 gradually disconnects the fourth oil outlet 312. The oil gradually flows into the oil tank 4 through the second housing 23. The oil gradually drives the third gear 233 and the fourth gear 234 to rotate, driving the output shaft 24 to output power.

[0045] Since oil is used as the power transmission medium, its transmission is not a rigid connection, realizing the slow output of power. At the same time, the power is steplessly regulated through the valve core 33, enabling the power motor 1 to start under load.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible starting speed regulating device for a belt conveyor, comprising a power motor (1), characterized in that: The power motor (1) is fixedly connected to the gearbox (2). The output shaft (24) is provided at the end of the gearbox (2) away from the power motor (1). An oil tank (4) is provided on the upper side of the gearbox (2). A regulating valve (3) is provided at the lower end of the gearbox (2).

2. The belt conveyor with flexible starting speed regulation device according to claim 1, characterized in that: The transmission (2) includes a first housing (21), a partition (22), and a second housing (23) that are bolted together in sequence. The partition (22) and the first housing (21) form a first sealed cavity, and the partition (22) and the second housing (23) form a second sealed cavity. Two meshing first gears (213) and second gears (214) are rotatably arranged inside the first housing (21). The second gears (214) are fixedly connected to the shaft of the power motor (1). The second housing (23) is provided with two meshing third gears (233) and fourth gears (234), and the third gears (233) are coaxially fixedly connected to the output shaft (24).

3. The belt conveyor with flexible starting speed regulation device according to claim 2, characterized in that: The first housing (21) has a first oil inlet (211) on its upper side and a first oil outlet (212) on its lower side; the partition (22) has a second oil outlet (221) and a second oil inlet (222) that are interconnected on its upper and lower sides; the second housing (23) has a third oil outlet (231) and a third oil inlet (232) on its upper and lower sides. The first oil inlet (211), the second oil outlet (221), and the third oil outlet (231) are all connected to the oil tank (4).

4. The belt conveyor with flexible starting speed regulation device according to claim 3, characterized in that: The regulating valve (3) includes a valve body (31), and a fourth oil inlet (311), a fourth oil outlet (312) and a fifth oil outlet (313) are provided in the valve body (31). The fourth oil inlet (311) is connected to the first oil outlet (212), the fourth oil outlet (312) is connected to the second oil inlet (222), and the fifth oil outlet (313) is connected to the third oil inlet (232). A valve core (33) is provided in the fourth oil outlet (312).

5. The belt conveyor with flexible starting and speed regulation device according to claim 4, characterized in that: A servo motor (32) is installed on the side of the valve housing (31). A worm gear (321) is fixedly connected to the shaft of the servo motor (32). The worm gear (321) is meshed with a worm wheel (322). The worm wheel (322) is coaxially fixedly connected to a lead screw (323). The lead screw (323) is threadedly connected to the valve core (33). The valve core (33) is slidably connected inside the valve housing (31). The valve core (33) and the fourth oil outlet (312) are arranged perpendicularly to each other.

6. The belt conveyor with flexible starting speed regulation device according to claim 5, characterized in that: The valve core (33) includes a blocking part (331) and a flow part (332). Both the blocking part (331) and the flow part (332) are cylindrical, and the diameter of the flow part (332) is smaller than the diameter of the blocking part (331).

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