Electromagnetic clutch brake for automatic packing machine and cotton picker

Abstract

The utility model discloses an electromagnetic clutch brake for an automatic packing machine and a cotton picker. Comprising a rack, a rotating shaft rotationally arranged on the rack and used for being connected with a film wrapping shaft, a shaft sleeve fixedly arranged on the rotating shaft in a sleeving mode, a movable disc rotationally arranged on the shaft sleeve in a sleeving mode and used for being connected with a power source, a fixed disc installed on the rack and an armature arranged between the movable disc and the fixed disc, and the rotating shaft, the shaft sleeve, the movable disc, the fixed disc and the armature are coaxially arranged; the armature is connected with the shaft sleeve through an internal spline and can slide in the axial direction of the shaft sleeve, and a movable disc electromagnet used for attracting or releasing the armature, a spring used for abutting against the armature and pushing the armature to the fixed disc and an electric brush used for supplying power to the movable disc electromagnet are arranged on the movable disc. The fixed disc is provided with a fixed disc electromagnet used for attracting or releasing the armature and a power connection plug-in used for supplying power to the fixed disc electromagnet. The electromagnetic clutch brake is compact in structure, the service life of the electromagnetic clutch brake can be prolonged, the manpower and material resource cost is reduced, and the precision of automatic packaging film covering and automatic film breaking of the packaging machine is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular, to an electromagnetic clutch brake for an automatic baler. In addition, the utility model also relates to a cotton picker including the electromagnetic clutch brake for the automatic baler. Background Art

[0002] The baler on the cotton picker automatically bales, covers and cuts the collected cotton bales. An electromagnetic clutch brake is usually used to drive and brake the film wrapping shaft. When baling, the moving plate electromagnet is energized to attract the armature to transmit torque, drive the film wrapping shaft, and wrap the film around the cotton bale. When baling is completed, the moving plate electromagnet is de-energized, and at the same time, the fixed plate electromagnet is energized to attract the armature to brake the film wrapping shaft, and the film is cut off to complete automatic baling.

[0003] As the operating time of the electromagnetic clutch brake increases, the distance between the moving plate and the armature, as well as the distance between the fixed plate and the armature, will increase due to the wear between the components, causing the electromagnetic attraction torque of the moving plate electromagnet and the fixed plate electromagnet on the armature to decrease, resulting in an increase in the delay time for switching back and forth between the clutch transmission and the brake, affecting the accuracy of the baling machine's automatic baling and automatic film cutting. Frequent replacement of the moving plate, armature and fixed plate of the electromagnetic clutch brake will not only increase downtime, but also lead to increased labor and material costs, affecting the economic benefits of cotton picking. Utility Model Content

[0004] The utility model provides an electromagnetic clutch brake and a cotton picking machine for an automatic baling machine, so as to solve the technical problems that the service life of the existing electromagnetic clutch brake is short, the accuracy of automatic baling film coating and automatic film cutting of the baling machine is affected if the parts are not replaced, and the replacement of parts will increase the downtime and increase the labor cost and material cost, thus affecting the economic benefits of cotton picking.

[0005] According to one aspect of the utility model, an electromagnetic clutch brake for an automatic baling machine is provided, comprising a frame, a rotating shaft rotatably arranged on the frame for connecting to a coating shaft, a sleeve fixedly mounted on the rotating shaft, a moving plate rotatably mounted on the sleeve for connecting to a power source, a fixed plate installed on the frame, and an armature arranged between the moving plate and the fixed plate, the rotating shaft, the sleeve, the moving plate, the fixed plate and the armature are coaxially arranged, the armature is connected to the sleeve by an internal spline and can slide along the axial direction of the sleeve, the moving plate is provided with a moving plate electromagnet for adsorbing or releasing the armature, a spring for abutting the armature and pushing the armature toward the fixed plate, and a brush for supplying power to the moving plate electromagnet, the fixed plate is provided with a fixed plate electromagnet for adsorbing or releasing the armature and a power connector for supplying power to the fixed plate electromagnet.

[0006] Furthermore, a first friction ring is arranged between the movable disc and the armature, and the first friction ring is arranged on the movable disc or the armature.

[0007] Furthermore, a second friction ring is arranged between the fixed plate and the armature, and the second friction ring is arranged on the fixed plate or the armature.

[0008] Furthermore, the power source includes a transmission pulley and a driving device for driving the transmission pulley, and the transmission pulley is coaxially arranged with the moving plate and fixedly connected.

[0009] Furthermore, it also includes a sensor for monitoring the axial distance between the moving disk and the armature or between the fixed disk and the armature and a controller for receiving the axial distance signal monitored by the sensor, and the controller is electrically connected to the moving disk electromagnet and the fixed disk electromagnet.

[0010] Furthermore, a retaining ring for preventing the armature from falling out is arranged on the shaft sleeve.

[0011] Furthermore, a first bearing is sleeved on the shaft sleeve, and the movable plate is rotatably connected to the shaft sleeve via the first bearing.

[0012] Furthermore, the first bearing and the retaining ring are respectively arranged on two sides of the armature.

[0013] Furthermore, a second bearing is arranged on the frame, and the rotating shaft is rotatably connected to the frame via the second bearing.

[0014] According to another aspect of the utility model, a cotton picker is also provided, which includes the above-mentioned electromagnetic clutch brake for the automatic baler.

[0015] The utility model has the following beneficial effects:

[0016] The utility model discloses an electromagnetic clutch brake for an automatic baling machine, wherein a shaft sleeve is provided on a fixed sleeve on a rotating shaft, an external spline is arranged on the outer circumference of the shaft sleeve, an internal spline is arranged on the center hole of an armature, and the armature is sleeved on the shaft sleeve so that the internal spline is meshed with the external spline, and the armature can both drive the shaft sleeve to rotate and slide along the axial direction of the shaft sleeve; when the moving plate electromagnet is energized and the fixed plate electromagnet is de-energized, the armature is attracted by the passive plate electromagnet to slide toward the moving plate, and finally the armature overcomes the elastic force of the spring and is adsorbed on the moving plate. At this time, the armature is disengaged from the fixed plate, and the power source drives the armature to rotate through the moving plate, thereby causing the shaft sleeve to rotate, and then driving the rotating shaft to rotate for power output; when the moving plate electromagnet is de-energized and the fixed plate electromagnet is energized, the armature is attracted by the fixed plate electromagnet to slide toward the fixed plate. At this time, the armature is disengaged from the moving plate, and the fixed plate brakes the armature, and finally the armature is adsorbed on the fixed plate, the moving plate rotates idly, and the rotating shaft stops rotating; the utility model discloses an electromagnetic clutch brake for an automatic baling machine, wherein the armature is mounted on the shaft sleeve, and the internal spline is meshed with the external spline, and the armature can both drive the shaft sleeve to rotate and slide along the axial direction of the shaft sleeve; when the moving plate electromagnet is energized and the fixed plate electromagnet is de-energized, the armature is attracted by the fixed plate electromagnet to slide toward the fixed plate, the moving plate rotates idly, and the rotating shaft stops rotating; the utility model discloses an electromagnetic clutch brake for an automatic baling machine, and the electromagnetic clutch brake for an automatic baling machine The armature is attracted to realize the switching between transmission and braking. The electrical automatic control logic is simple and can shorten the delay time of switching back and forth between clutch transmission and braking, so as to accurately control the rotation amount of the film coating shaft, and then ensure the accuracy of automatic film coating and automatic film cutting of the baler. On the one hand, the spring can assist the fixed plate in braking and shorten the braking time. On the other hand, when the power is off or the machine is shut down, the spring can make the armature abut against the fixed plate, so as to maintain the braking state and prevent the rotating shaft from driving the film coating shaft to rotate, resulting in automatic unwinding or rewinding of the film on the film coating shaft. In addition, with the wear of the automatic baler during long-term operation, the distance between the moving plate and the armature and the distance between the fixed plate and the armature will gradually increase, which will cause changes in the braking force and time. At this time, the machine can be shut down to increase or decrease the number of springs according to the situation to compensate for the braking force, thereby extending the service life of the electromagnetic clutch brake, reducing manpower and material costs, and ensuring the accuracy of automatic film coating and automatic film cutting of the automatic baler.

[0017] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 It is a structural schematic diagram of an electromagnetic clutch brake for an automatic baler according to a preferred embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of a moving disk in a preferred embodiment of the utility model.

[0021] Legend:

[0022] 100, encapsulating shaft; 1, frame; 11, second bearing; 2, rotating shaft; 3, bushing; 31, shift ring; 32, first bearing; 4, moving plate; 41, moving plate electromagnet; 42, spring; 43, brush; 5, fixed plate; 51, fixed plate electromagnet; 52, electrical connector; 6, armature; 61, internal spline; 62, first friction ring; 63, second friction ring; 7, drive pulley; 8, sensor. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0024] like Figure 1 and Figure 2 As shown, the electromagnetic clutch brake for the automatic baling machine of this embodiment includes a frame 1, a rotating shaft 2 rotatably arranged on the frame 1 for connecting to the film coating shaft 100, a sleeve 3 fixedly sleeved on the rotating shaft 2, a moving plate 4 rotatably sleeved on the sleeve 3 for connecting to a power source, a fixed plate 5 installed on the frame 1 and an armature 6 arranged between the moving plate 4 and the fixed plate 5, the rotating shaft 2, the sleeve 3, the moving plate 4, the fixed plate 5 and the armature 6 are coaxially arranged, the armature 6 is connected to the sleeve 3 through an internal spline 61 and can slide along the axial direction of the sleeve 3, the moving plate 4 is provided with a moving plate electromagnet 41 for adsorbing or releasing the armature 6, a spring 42 for abutting the armature 6 and pushing the armature 6 toward the fixed plate 5, and a brush 43 for supplying power to the moving plate electromagnet 41, and the fixed plate 5 is provided with a fixed plate electromagnet 51 for adsorbing or releasing the armature 6 and a power connector 52 for supplying power to the fixed plate electromagnet 51.

[0025] The electromagnetic clutch brake for the automatic baler of this embodiment has a shaft sleeve 3 fixed on the rotating shaft 2, an outer spline is arranged on the outer circumference of the shaft sleeve 3, an inner spline 61 is arranged on the center hole of the armature 6, and the armature 6 is sleeved on the shaft sleeve 3 so that the inner spline 61 is meshed with the outer spline. The armature 6 can drive the shaft sleeve 3 to rotate and slide along the axial direction of the shaft sleeve 3; when the moving plate electromagnet 41 is energized and the fixed plate electromagnet 51 is de-energized, the armature 6 is attracted to the moving plate 4 by the passive plate electromagnet 41. The armature 6 slides, and finally the armature 6 overcomes the elastic force of the spring 42 and is adsorbed on the movable plate 4. At this time, the armature 6 is out of contact with the fixed plate 5, and the power source drives the armature 6 to rotate through the movable plate 4, thereby causing the shaft sleeve 3 to rotate, and then drives the rotating shaft 2 to rotate for power output; when the movable plate electromagnet 41 is powered off and the fixed plate electromagnet 51 is powered on, the armature 6 is attracted by the fixed plate electromagnet 51 to slide toward the fixed plate 5. At this time, the armature 6 is out of contact with the movable plate 4, and the fixed plate 5 brakes the armature 6, and finally the armature 6 is adsorbed On the fixed plate 5, the movable plate 4 is idle and the rotating shaft 2 is stopped; its structure is compact, and the switching of transmission and braking can be realized by electrically controlling the movable plate 4 or the fixed plate 5 to attract the armature 6. The electrical automatic control logic is simple, and the delay time of switching back and forth between the clutch transmission and the brake can be shortened, so as to accurately control the rotation amount of the film coating shaft 100, thereby ensuring the accuracy of the automatic film coating and automatic film cutting of the baler; on the one hand, the spring 42 can assist the fixed plate 5 in braking and shorten the braking time; on the other hand, when the power is off or the machine is shut down, the spring 42 can make the armature 6 abut against the fixed plate 5, so as to maintain the braking state, and prevent the rotating shaft 2 from driving the film coating shaft 100 to rotate, resulting in automatic unwinding or rewinding of the film on the film coating shaft 100; in addition, with the wear of the automatic baler during long-term operation, the distance between the movable plate 4 and the armature 6 and the distance between the fixed plate 5 and the armature 6 will gradually increase, which will cause the braking force and time to change. At this time, the machine can be shut down to increase or decrease the number of springs 42 according to the situation to compensate for the braking force.

[0026] In this embodiment, a first friction ring 62 is arranged between the moving disk 4 and the armature 6, and the first friction ring 62 is arranged on the moving disk 4 or the armature 6; the first friction ring 62 can increase the friction force between the moving disk 4 and the armature 6, avoid relative rotation between the moving disk 4 and the armature 6, and ensure that the transmission torque can meet the use requirements.

[0027] In this embodiment, a second friction ring 63 is arranged between the fixed plate 5 and the armature 6. The second friction ring 63 is arranged on the fixed plate 5 or the armature 6. The second friction ring 63 can increase the friction force between the fixed plate 5 and the armature 6, thereby ensuring the braking effect and shortening the braking time.

[0028] In this embodiment, the power source includes a driving pulley 7 and a driving device for driving the driving pulley 7. The driving pulley 7 is coaxially arranged and fixedly connected with the moving plate 4. The driving pulley 7 can drive the moving plate 4 to rotate around its axis. Optionally, the driving device is an electric motor, a hydraulic motor or an engine.

[0029] In this embodiment, it also includes a sensor 8 for monitoring the axial spacing between the moving disk 4 and the armature 6 or between the fixed disk 5 and the armature 6 and a controller for receiving the axial spacing signal monitored by the sensor 8, and the controller is electrically connected to the moving disk electromagnet 41 and the fixed disk electromagnet 51; the spacing between the armature 6, the fixed disk 5, and the moving disk 4 increases with the friction loss, so that the electromagnetic attraction torque of the moving disk electromagnet 41 and the fixed disk electromagnet 51 on the armature 6 becomes smaller, and after the sensor 8 detects that the spacing exceeds the set value, the voltage of the electromagnetic coil on the moving disk electromagnet 41 and the fixed disk electromagnet 51 can be automatically adjusted through electrical control to ensure that the electromagnetic attraction torque is reliable, thereby ensuring the accuracy of the braking time and torque. There is no need to adjust the spacing through the mechanical structure, which can extend the life of the electromagnetic clutch brake, reduce the shutdown time for adjustment, and reduce the manpower and material costs; when the wear reaches the limit value and the adjusted voltage cannot meet the electromagnetic attraction torque requirement, the controller prompts manual shutdown to adjust the mechanical structure gap.

[0030] In this embodiment, a retaining ring 31 is disposed on the shaft sleeve 3 to prevent the armature 6 from falling out, thereby reducing the difficulty of assembly.

[0031] In this embodiment, a first bearing 32 is sleeved on the sleeve 3, and the movable plate 4 is rotatably connected to the sleeve 3 via the first bearing 32. The first bearing 32 can enable the movable plate 4 to rotate relative to the sleeve 3 on the one hand, and prevent the armature 6 from falling off the sleeve 3 on the other hand.

[0032] In this embodiment, the first bearing 32 and the retaining ring 31 are respectively arranged on both sides of the armature 6 to prevent the armature 6 from falling off the shaft sleeve 3 during assembly. The structure is simple and the difficulty of assembly can be reduced.

[0033] In this embodiment, a second bearing 11 is disposed on the frame 1 , and the rotating shaft 2 is rotatably connected to the frame 1 via the second bearing 11 .

[0034] A cotton picker includes the above-mentioned electromagnetic clutch brake for the automatic baler, wherein the rotating shaft 2 is connected to the film coating shaft 100 of the baler, and the moving plate 4 is attracted with the armature 6 during baling, and the transmission pulley 7 can drive the film coating shaft 100 to rotate through the rotating shaft 2. When baling is completed, the moving plate 4 is separated from the armature 6, and the fixed plate 5 is attracted with the armature 6 to brake the armature 6, thereby stopping the film coating shaft 100. The clutch and brake switching can be realized accurately and reliably. The baler of the cotton picker can realize automatic baling, laminating and automatic film cutting, and meet the requirements of continuous baling without stopping.

[0035] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electromagnetic clutch brake for an automatic baler, characterized in that: The invention comprises a frame (1), a rotating shaft (2) rotatably arranged on the frame (1) and used for connecting with a coating shaft, a shaft sleeve (3) fixedly sleeved on the rotating shaft (2), a moving plate (4) rotatably sleeved on the shaft sleeve (3) and used for connecting with a power source, a fixed plate (5) installed on the frame (1), and an armature (6) arranged between the moving plate (4) and the fixed plate (5). The rotating shaft (2), the shaft sleeve (3), the moving plate (4), the fixed plate (5) and the armature (6) are coaxially arranged; the armature (6) is connected to the shaft sleeve (3) via an internal spline (61) and can slide along the axial direction of the shaft sleeve (3). The movable disk (4) is provided with a movable disk electromagnet (41) for attracting or releasing the armature (6), a spring (42) for abutting against the armature (6) and pushing the armature (6) toward the fixed disk (5), and a brush (43) for supplying power to the movable disk electromagnet (41). The fixed plate (5) is provided with a fixed plate electromagnet (51) for adsorbing or releasing the armature (6) and a power connector (52) for supplying power to the fixed plate electromagnet (51).

2. The electromagnetic clutch brake for an automatic baler according to claim 1, characterized in that: A first friction ring (62) is arranged between the moving disc (4) and the armature (6), and the first friction ring (62) is arranged on the moving disc (4) or the armature (6).

3. The electromagnetic clutch brake for an automatic baler according to claim 1, characterized in that: A second friction ring (63) is arranged between the fixed disk (5) and the armature (6); the second friction ring (63) is arranged on the fixed disk (5) or the armature (6).

4. The electromagnetic clutch brake for an automatic baler according to any one of claims 1 to 3, characterized in that: The power source comprises a transmission pulley (7) and a driving device for driving the transmission pulley (7); the transmission pulley (7) is coaxially arranged with the moving disc (4) and is fixedly connected.

5. The electromagnetic clutch brake for an automatic baler according to claim 4, characterized in that: It also includes a sensor (8) for monitoring the axial spacing between the moving disk (4) and the armature (6) or between the fixed disk (5) and the armature (6) and a controller for receiving the axial spacing signal monitored by the sensor (8), and the controller is electrically connected to the moving disk electromagnet (41) and the fixed disk electromagnet (51).

6. The electromagnetic clutch brake for an automatic baler according to claim 1, 2, 3 or 5, characterized in that: The shaft sleeve (3) is provided with a retaining ring (31) for preventing the armature (6) from falling out.

7. The electromagnetic clutch brake for an automatic baler according to claim 6, characterized in that: The shaft sleeve (3) is sleeved with a first bearing (32), and the movable plate (4) is rotatably connected to the shaft sleeve (3) via the first bearing (32).

8. The electromagnetic clutch brake for an automatic baler according to claim 7, characterized in that: The first bearing (32) and the retaining ring (31) are respectively arranged on both sides of the armature (6).

9. The electromagnetic clutch brake for an automatic baler according to claim 1, characterized in that: A second bearing (11) is arranged on the frame (1), and the rotating shaft (2) is rotatably connected to the frame (1) via the second bearing (11).

10. A cotton picker, characterized in that: An electromagnetic clutch brake for an automatic baling machine comprising any one of claims 1 to 9.

Images