Round Baler Net Wrapping Device

Abstract

The present invention is a net wrapping device for a round baler, belonging to the technical field of agricultural and animal husbandry machinery, and mainly consists of a net wrapping device frame, a driving pulley, a net wrapping amount control mechanism, an upper mesh mechanism, a support shaft I, a support shaft II, a net stretching roller, a pressure roller I, a pressure roller II, a net feeding rubber roller, a net roll brake device, a net cutting knife, a guide plate and a net cutting knife frame, etc. The invention is used for a round baler, and the net wrapping device adopts an electronic counting rubber roller circle number and an electric push rod to start the net cutting working mode, which is convenient to adjust the net wrapping circle number and has high reliability; the upper mesh mechanism and the net roll brake device can continuously provide constant friction resistance to the net roll, which does not change with the diameter of the net roll, and the electromagnetic brake can ensure that the wire mesh is not easy to loosen when the net is cut, thereby improving the baling efficiency and reliability of the round baler.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural and animal husbandry machinery, in particular to a round baler net wrapping device, which can improve the baling efficiency and reliability of the round baler. Background Art

[0002] Round bale baler is a main machine used for harvesting grass and straw. It has been widely used in my country. It can bundle grass strips or materials laid in the field into cylindrical bales with neat and regular shapes through conveying, feeding, rotating compression, rope and net winding and other processes. After the cylindrical bale is formed, in order to prevent the bale from scattering, the outer surface of the round bale formed in the baling chamber must be evenly wound with rope or wire mesh. Practice has proved that net winding is more efficient than rope winding. The net winding process has gradually replaced the rope winding process and is widely used in various types of balers. Through the analysis and research of the net winding mechanism of the existing round baler, it is found that there are problems such as the net roll is easy to loosen when cutting the net, the number of net winding circles is inconvenient to measure, and the reliability is low. Summary of the invention

[0003] In view of the above problems, the object of the present invention is to provide a convenient and reliable round baler net wrapping device in view of the above technical problems.

[0004] The present invention is implemented in detail by the following technical scheme: the net wrapping device of the round baler of the present invention mainly comprises a net wrapping device frame, a driving pulley, a net wrapping amount control mechanism, an upper-threading mechanism, a support shaft I, a support shaft II, a net stretching roller, a pressure roller I, a pressure roller II, a net feeding rubber roller, a net roll brake device, a net cutting knife, a guide plate and a net cutting knife frame, etc. The net wrapping device frame is located on both sides of the net wrapping device and is fixed by welding a steel pipe. At the same time, the upper-threading mechanism, the support shaft I, the support shaft II, the net stretching roller, the pressure roller I, the pressure roller II, the net feeding rubber roller and the guide plate are also installed between the two side plates of the net wrapping device frame. A driving pulley and a net winding amount control mechanism are respectively installed on both sides of the frame of the net winding device. The driving pulley drives the net feeding rubber roller through an electromagnetic clutch. An electromagnetic brake is installed at the other end of the net feeding rubber roller. Rubber is attached to the surface of the net feeding rubber roller. Pressure roller I, pressure roller II and a net cutting knife frame are jointly installed on the net cutting knife main shaft above the net feeding rubber roller. Pressure roller I and pressure roller II are respectively pressed on the net feeding rubber roller under the action of springs, and the net cutting knife is installed on the net cutting knife frame.

[0005] The net winding amount control mechanism is mainly composed of a net winding metering plate, an electromagnetic brake, a counting proximity switch, a reset proximity switch, an electric push rod, a hook, a reset tension rod and a reset pull rope. The net winding metering plate is fixed on the shaft end of the net feeding rubber roller by a set screw, and a counting proximity switch is installed on one side of the net winding metering plate to measure the length of the net winding. The reset tension rod is fixed on the shaft end of the net cutting knife spindle by a key connection. One end of the hook is hinged on the frame of the net winding device, and the middle is hinged with the electric push rod. The reset tension rod is hung on the hook in the idle and net winding state. When the net winding amount reaches the set value, the electric push rod drives the hook to release the reset tension rod, and the net cutting knife falls under the action of the spring to complete the net cutting. A reset proximity switch is installed below the reset tension rod in the net winding state, and a reset pull rope is installed at the other end of the reset tension rod. The reset pull rope is connected to the rear bin of the round baler.

[0006] The net-climbing mechanism mainly includes a net-climbing frame, a net-climbing sleeve, a nylon sleeve, a locking sleeve, a guide ring, a spring card, a support ring, a brake sleeve, and a brake ring. The net-climbing sleeve is sleeved on the net-climbing frame, and the net roll is sleeved on the net-climbing sleeve, which is connected by a nylon sleeve, a locking sleeve, and a brake sleeve. The brake sleeve is equipped with a guide ring, a spring card, a support ring, and a brake ring. The spring card is installed on the brake sleeve by bolt connection.

[0007] The beneficial effects of the present invention are as follows: it can overcome the drawbacks of the prior art, the mechanism design is reasonable and novel, and the working mode of electronically counting the number of turns of the mesh feeding rubber roller and the electric push rod starting the mesh cutting is adopted, and the number of turns of the mesh winding is convenient to adjust; the mesh feeding mechanism and the mesh roll brake device can continuously provide constant friction resistance to the mesh roll, which does not change with the diameter of the mesh roll; the electromagnetic brake installed on the mesh feeding rubber roller ensures that the wire mesh is not easy to loosen when the mesh is cut, thereby improving the baling efficiency and reliability of the round baler. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the net wrapping device of the round baler of the present invention;

[0009] Figure 2 It is a longitudinal cross-sectional schematic diagram of the net wrapping device of the round baler of the present invention;

[0010] Figure 3 It is a structural schematic diagram of the web-entanglement amount control mechanism of the present invention;

[0011] Figure 4 It is a schematic transverse cross-sectional view of the web access mechanism of the present invention.

[0012] In the accompanying drawings: 1 is a frame of the net winding device, 2 is a driving pulley, 3 is a net winding amount control mechanism, 4 is an online mechanism, 5 is a support shaft I, 6 is a support shaft II, 7 is a net stretching roller, 8 is a pressure roller I, 9 is a pressure roller II, 10 is a net feeding rubber roller, 11 is a net roll brake device, 12 is a net cutting knife, 13 is a guide plate, 14 is a net cutting knife frame, 3-1 is a net winding metering plate, 3-2 is an electromagnetic brake, 3-3 is a counting proximity switch, 3-4 is a reset proximity switch, 3-5 is an electric push rod, 3-6 is a hook, 3-7 is a reset tension rod, 3-8 is a reset pull rope, 4-1 is an online rack, 4-2 is an online sleeve, 4-3 is a nylon sleeve, 4-4 is a locking sleeve, 4-5 is a guide ring, 4-6 is a spring card, 4-7 is a support ring, 4-8 is a brake sleeve, and 4-9 is a brake ring. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings:

[0014] like Figure 1-4 As shown, this specific embodiment adopts the following technical scheme: it mainly comprises a net winding device frame (1), a driving pulley (2), a net winding amount control mechanism (3), a net feeding mechanism (4), a support shaft I (5), a support shaft II (6), a net stretching roller (7), a pressure roller I (8), a pressure roller II (9), a net feeding rubber roller (10), a net roll brake device (11), a net cutting knife (12), a guide plate (13) and a net cutting knife frame (14). The net winding device frame (1) is located on both sides of the net winding device and is connected and fixed by welding a steel pipe. At the same time, the net feeding mechanism (4), the support shaft I (5), the support shaft II (6), the net stretching roller (7), the pressure roller I (8), the pressure roller II (9), the net feeding rubber roller (10) and the guide plate (13) are also installed between the two side plates of the net winding device frame (1). A driving pulley (2) and a net winding amount control mechanism (3) are respectively installed on both sides of a net winding device frame (1); the driving pulley (2) drives a net feeding rubber roller (10) through an electromagnetic clutch; an electromagnetic brake (3-2) is installed at the other end of the net feeding rubber roller (10); rubber is attached to the surface of the net feeding rubber roller (10); a pressure roller I (8), a pressure roller II (9) and a net cutting knife frame (14) are jointly installed on a net cutting knife main shaft above the net feeding rubber roller (10); the pressure roller I (8) and the pressure roller II (9) are respectively pressed on the net feeding rubber roller (10) under the action of a spring; and the net cutting knife (12) is installed on the net cutting knife frame (14).

[0015] The web winding amount control mechanism (3) mainly consists of a web winding metering plate (3-1), an electromagnetic brake (3-2), a counting proximity switch (3-3), a reset proximity switch (3-4), an electric push rod (3-5), a hook (3-6), a reset tension rod (3-7) and a reset pull rope (3-8). The web winding metering plate (3-1) is fixed on the shaft end of the web feeding rubber roller (10) by means of a set screw, the electromagnetic brake (3-2) is installed on the web winding device frame (1) and connected to the web feeding rubber roller (10), and the counting proximity switch (3-3) is installed on one side of the web winding metering plate (3-1). The reset tension rod (3-7) is fixedly mounted on the main shaft end of the net cutting knife (12) through a key connection, one end of the hook (3-6) is hinged on the net winding device frame (1), and the middle is hinged with the electric push rod (3-5). The reset tension rod (3-7) is hung on the hook (3-6) in the idle and net winding state. When the net winding amount reaches the set value, the electric push rod (3-5) drives the hook (3-6) to release the reset tension rod (3-7). The reset tension rod (3-7) and the net cutting knife (12) fall down at the same time under the action of the spring to complete the net cutting. A reset proximity switch (3-4) is installed below the reset tension rod (3-7) in the net winding state, and a reset pull rope (3-8) is installed at the other end of the reset tension rod (3-7). The reset pull rope (3-8) is connected to the rear bin of the round baler.

[0016] The net-climbing mechanism (4) is mainly composed of a net-climbing frame (4-1), a net-climbing sleeve (4-2), a nylon sleeve (4-3), a locking sleeve (4-4), a guide ring (4-5), a spring card (4-6), a support ring (4-7), a brake sleeve (4-8) and a brake ring (4-9). The net-climbing sleeve (4-2) is sleeved on the net-climbing frame (4-1), and the net roll is sleeved on the net-climbing sleeve (4-2), and is connected through the nylon sleeve (4-3), the locking sleeve (4-4) and the brake sleeve (4-8). The guide ring (4-5), the spring card (4-6), the support ring (4-7) and the brake ring (4-9) are installed on the brake sleeve (4-8). The spring card (4-6) is installed on the brake sleeve (4-8) by bolt connection.

Claims

1. Round baler net wrapping device, characterized by: It comprises a net winding device frame (1), a driving pulley (2), a net winding amount control mechanism (3), an upper web mechanism (4), a support shaft I (5), a support shaft II (6), a net stretching roller (7), a pressure roller I (8), a pressure roller II (9), a net feeding rubber roller (10), a net roll brake device (11), a net cutting knife (12), a guide plate (13) and a net cutting knife frame (14). The net winding device frame (1) is located on both sides of the net winding device and is connected and fixed by welding a steel pipe. At the same time, the upper web mechanism (4), the support shaft I (5), the support shaft II (6), the net stretching roller (7), the pressure roller I (8), the pressure roller II (9), the net feeding rubber roller (10) and the guide plate (13) The net winding device is also installed between two side plates of the net winding device frame (1). The two sides of the net winding device frame (1) are respectively installed with a driving pulley (2) and a net winding amount control mechanism (3). The driving pulley (2) drives the net feeding rubber roller (10) through an electromagnetic clutch. The other end of the net feeding rubber roller (10) is installed with an electromagnetic brake (3-2). The surface of the net feeding rubber roller (10) is attached with rubber. The pressure roller I (8), the pressure roller II (9) and the net cutting knife frame (14) are jointly installed on the net cutting knife main shaft above the net feeding rubber roller (10). The pressure roller I (8) and the pressure roller II (9) are respectively pressed on the net feeding rubber roller (10) under the action of a spring. The net cutting knife (12) is installed on the net cutting knife frame (14); The net winding amount control mechanism (3) is composed of a net winding metering plate (3-1), an electromagnetic brake (3-2), a counting proximity switch (3-3), a reset proximity switch (3-4), an electric push rod (3-5), a hook (3-6), a reset tension rod (3-7) and a reset pull rope (3-8). The net winding metering plate (3-1) is fixed on the shaft end of the net feeding rubber roller (10) by means of a set screw, the electromagnetic brake (3-2) is installed on the net winding device frame (1) and connected to the net feeding rubber roller (10), the counting proximity switch (3-3) is installed on one side of the net winding metering plate (3-1), and the reset tension rod (3-7) is fixed on the shaft end of the main shaft of the net cutting knife (12) by means of a key connection. One end of the hook (3-6) is hinged on the frame (1) of the net winding device, and the middle is hinged with the electric push rod (3-5). The reset tension rod (3-7) is hung on the hook (3-6) in the idle and net winding states. When the net winding amount reaches the set value, the electric push rod (3-5) drives the hook (3-6) to release the reset tension rod (3-7). The reset tension rod (3-7) and the net cutting knife (12) fall down at the same time under the action of the spring to complete the net cutting. A reset proximity switch (3-4) is installed below the reset tension rod (3-7) in the net winding state. A reset pull rope (3-8) is installed at the other end of the reset tension rod (3-7). The reset pull rope (3-8) is connected to the rear bin of the round baler;The net-climbing mechanism (4) is composed of a net-climbing frame (4-1), a net-climbing sleeve (4-2), a nylon sleeve (4-3), a locking sleeve (4-4), a guide ring (4-5), a spring card (4-6), a support ring (4-7), a brake sleeve (4-8) and a brake ring (4-9). The net-climbing sleeve (4-2) is sleeved on the net-climbing frame (4-1), and the net roll is sleeved on the net-climbing sleeve (4-2), and connected through the nylon sleeve (4-3), the locking sleeve (4-4) and the brake sleeve (4-8). The brake sleeve (4-8) is equipped with a guide ring (4-5), a spring card (4-6), a support ring (4-7) and a brake ring (4-9), and the spring card (4-6) is installed on the brake sleeve (4-8) through bolt connection.

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