Electro-hydraulic combined control workbin unloading electrical system of crawler-type sugarcane cutting and piling machine

Abstract

The utility model provides an electro-hydraulic combined control workbin unloading electrical system of a crawler-type sugarcane cutting and piling machine. The electro-hydraulic combined control workbin unloading electrical system comprises a sugarcane cutting and piling machine body, an electro-hydraulic combined control workbin unloading hydraulic system and an electro-hydraulic combined control workbin unloading electrical system. The sequence valve is composed of a two-linkage reversing valve set, an electrical system (comprising a relay, a proximity switch and the like), a hopper lifting oil cylinder and a material door opening and closing oil cylinder, the electrical system is controlled by a rocker switch, the relay and the proximity switch which are mature elements, cost is low, work is reliable, a relay control circuit of the electrical system is combined, sequence valve actions can be achieved through one set of switches, and the sequence valve is convenient to operate. The electro-hydraulic combined control material box unloading system formed by combining an electrical system with a hydraulic system can realize full-sequence action according to use requirements, is simple and convenient to operate, can avoid misoperation, is low in scheme cost and reliable in work, and can efficiently complete unloading action control of the pile cutting machine.

Description

Technical Field

[0001] The utility model relates to the field of sugarcane harvester and buncher, in particular to an electric and hydraulic combined control material box unloading electrical system of a crawler type sugarcane harvester and buncher. Background Art

[0002] At present, the material box of the sugarcane harvester on the market can only unload on one side. Due to this limitation, the harvester cannot perform reciprocating harvesting, which increases the cost of the vehicle and greatly reduces the efficiency of harvesting. To solve this problem, we improved the material box to unload in the same direction as the harvesting direction. At this time, the unloading action required increases and the actions that require manual control are also more. This solution is designed to simplify the control action and avoid misoperation.

[0003] The material box lifting cylinder and the material door opening and closing cylinder are two groups of cylinders. The general operation method is to use manual two-way valve or electric two-way valve to control them separately. According to the working requirements of the material box, during the unloading process, the two groups of cylinders need to act in sequence, that is, after the material box is full, first lift the material box to the top, and then open the material door to unload; after unloading, first close the material door, and then retract the material box. Manual or electric two-way valve control, because there are two joysticks or two groups of buttons, it is easy to cause misoperation; if the unloading and retraction actions are not completed in sequence, the material in the material box will not be unloaded cleanly or cannot be unloaded, the material box will hit the chassis, causing damage to the material box, etc. Utility Model Content

[0004] The utility model aims to provide an electric and hydraulic combined control material box unloading electrical system of a crawler type sugarcane harvester and buncher to overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is specifically implemented as follows:

[0006] The utility model provides a crawler type sugarcane harvester and buncher electro-hydraulic combined control material box unloading electrical system, comprising a sugarcane harvester and buncher body, an electro-hydraulic combined control material box unloading hydraulic system and an electro-hydraulic combined control material box unloading electrical system;

[0007] The sugarcane buncher body comprises a chassis, a material box, left and right material doors, a material door cylinder and a material box lifting cylinder. A material box is installed on the top of the chassis. Material box lifting cylinders for controlling the lifting of the material box are installed on the chassis and on both sides of the material box. Two symmetrical left and right material doors are arranged at the bottom of the material box. Material door opening and closing cylinders are installed on both sides of the material box. A material door opening proximity switch is installed on the front side of the material box, and a material box retracting proximity switch is installed on the rear side of the material box.

[0008] The material box lifting cylinder and the material door cylinder are controlled by an electro-hydraulic combined control material box unloading hydraulic system, and the electro-hydraulic combined control material box unloading hydraulic system includes a two-link solenoid valve group, and the two-link solenoid valve group is provided with a hopper lifting electromagnet DT1, a hopper retracting electromagnet DT2, a material door closing electromagnet DT3 and a material door opening electromagnet DT4 to control the A1 port, B1 port, A2 port and B2 port of the two-link solenoid valve group;

[0009] The electro-hydraulic combined control material box unloading electrical system includes a material door opening proximity switch, a material box retraction proximity switch, a relay 1, a relay 2, a relay 3, a relay 4, a unloading retraction rocker switch, a hopper lifting electromagnet DT1, a hopper retraction electromagnet DT2, a material door closing electromagnet DT3 and a material door opening electromagnet DT4. The relay 1 is electrically connected to the material door opening proximity switch and connected in series with the unloading retraction rocker switch. The relay 4 is connected in series with the material box retraction proximity switch and the unloading and retraction rocker switch. The relay 1 is also electrically connected to the material door opening electromagnet DT4, the relay 2 is electrically connected to the hopper lifting electromagnet DT1, the relay 3 is electrically connected to the material door closing electromagnet DT3, the relay 2 is also electrically connected to the material door opening proximity switch, the relay 3 is also electrically connected to the material box retraction proximity switch, and the relay 4 is electrically connected to the hopper retraction electromagnet DT2. The material door opening proximity switch is installed on the front side of the material box, and the material box retraction proximity switch is installed on the rear side of the material box.

[0010] As a further solution of the utility model, the material door opening proximity switch and the material box retracting proximity switch are both NPN type.

[0011] The utility model provides an electrical system for unloading material box of a crawler type sugarcane harvester and buncher with electric and hydraulic combined control, and the beneficial effects are:

[0012] 1. This system consists of a two-way reversing valve group, an electrical system (including relays, proximity switches, etc.), a hopper lifting cylinder, and a door opening and closing cylinder. The electrical system is controlled by a rocker switch + relay + proximity switch, which are all mature components with low cost and reliable operation. Combined with the relay control circuit of the electrical system, a set of switches can realize sequential valve action and avoid false action.

[0013] 2. The electro-hydraulic combined control material box unloading system composed of the electrical system and the hydraulic system can realize the full sequence action according to the use requirements. The operation is simple and convenient, which can avoid misoperation. The solution cost is low, the operation is reliable, and the unloading action control of the cutter and stacker can be completed efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a three-dimensional view of the initial position of the material box of the utility model.

[0016] Figure 2 This is a three-dimensional view of the state in which the material box of the utility model is raised to the highest position and the material door has not yet been opened.

[0017] Figure 3 This is a three-dimensional view of the state in which the material box of the utility model is raised to the highest position and the material door is opened for unloading.

[0018] Figure 4 This is the principle diagram of the hydraulic system for the electro-hydraulic combined control of material box unloading in the utility model.

[0019] Figure 5 This is the electrical schematic diagram of the electro-hydraulic combined control material box unloading in the utility model.

[0020] Figure 6 This is the control block diagram of the electro-hydraulic combined control box unloading control in the utility model.

[0021] In the figure: 1. chassis; 2. material box; 3. left and right material doors; 4. material door cylinder; 5. material box lifting cylinder; 6. material door opening proximity switch; 7. material box retracting proximity switch; 8. two-way solenoid valve group. DETAILED DESCRIPTION

[0022] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0023] See also Figure 1-6 The utility model provides a crawler type sugarcane harvester and buncher electro-hydraulic combined control material box unloading electrical system, including a sugarcane harvester and buncher body, an electro-hydraulic combined control material box unloading hydraulic system and an electro-hydraulic combined control material box unloading electrical system;

[0024] The sugarcane buncher body includes a chassis 1, a material box 2, left and right material doors 3, a material door cylinder 4 and a material box lifting cylinder 5. The material box 2 is installed on the top of the chassis 1. The material box lifting cylinders 5 for controlling the lifting of the material box 2 are installed on the chassis 1 and on both sides of the material box 2. Two symmetrical left and right material doors 3 are arranged at the bottom of the material box 2. Material door opening and closing cylinders are installed on both sides of the material box 2. A material door opening proximity switch 6 is installed on the front side of the material box 2, and a material box retracting proximity switch 7 is installed on the rear side of the material box 2.

[0025] The material box lifting cylinder 5 and the material door cylinder 4 are controlled by an electro-hydraulic combined control material box unloading hydraulic system, which includes a two-way solenoid valve group 8, on which a hopper lifting electromagnet DT1, a hopper retracting electromagnet DT2, a material door closing electromagnet DT3 and a material door opening electromagnet DT4 are provided to control the A1 port, B1 port, A2 port and B2 port of the two-way solenoid valve group 8;

[0026] The electrical system for electro-hydraulic combined control of material box unloading includes a material door opening proximity switch 6, a material box retraction proximity switch 7, a relay 1, a relay 2, a relay 3, a relay 4, a unloading retraction rocker switch, a hopper lifting electromagnet DT1, a hopper retraction electromagnet DT2, a material door closing electromagnet DT3 and a material door opening electromagnet DT4. Relay 1 is electrically connected to the material door opening proximity switch 6 and is connected in series with the unloading retraction rocker switch. Relay 4 is connected in series with the material box retraction proximity switch 7 and the unloading and retraction rocker switches. Relay 1 is also electrically connected to the material door opening electromagnet DT4. Relay 2 is electrically connected to the hopper lifting electromagnet DT1. Relay 3 is electrically connected to the material door closing electromagnet DT3. Relay 2 is also electrically connected to the material door opening proximity switch 6. Relay 3 is also electrically connected to the material box retraction proximity switch 7. Relay 4 is electrically connected to the hopper retraction electromagnet DT2. The material door opening proximity switch 6 is installed on the front side of the material box 2, and the material box retraction proximity switch 7 is installed on the rear side of the material box 2.

[0027] like Figure 2 As shown, the door opening proximity switch 6 and the box retracting proximity switch 7 are both NPN type.

[0028] Figure 1 , Figure 2 , Figure 3 They are the three main positions for unloading and resetting the material box 2. In the figure, there are one material box lifting cylinder 5 on each side, one material door cylinder 4 on each side, one material box 2, and one material door on each side. Figure 1 The material box 2 is in the state of falling onto the chassis 1, at which time the material box lifting cylinder 5 is retracted and the material door cylinder 4 is extended; Figure 1 The above figure is a plan view of the initial position of the material box 2. Figure 1 The figure below is a three-dimensional view of the initial position of the material box 2.

[0029] Figure 2The material box 2 is raised to the highest position, and the material door has not yet been opened. At this time, the material box lifting cylinder 5 is extended, and the material door cylinder 4 is extended; Figure 2 The above picture is a plan view. Figure 1 The figure below is a stereoscopic view.

[0030] Figure 3 The material box 2 is raised to the highest position, and the material door is opened for unloading. At this time, the material box lifting cylinder 5 extends and the material door cylinder 4 retracts; Figure 3 The above picture is a plan view. Figure 1 The figure below is a stereoscopic view.

[0031] Figure 4 This is the schematic diagram of the hydraulic system for material box unloading with electric and hydraulic combined control.

[0032] When unloading begins, press the unloading switch, the electromagnet DT1 is energized, the two-way solenoid valve group 8B1 port discharges oil, and the material box 2 rises; when the material box 2 rises to Figure 2 When the hopper is in the position, the DT1 solenoid is powered off, the DT4 solenoid is powered on, the valve group A2 port is oiled, the material door cylinder 4 is opened, and the hopper is unloaded. Figure 3 Location.

[0033] When the material box 2 is reset, the hopper closing switch is pressed, the electromagnet DT3 is energized, the two-way solenoid valve group 8B2 port discharges oil, and the material door is closed; when the material door is closed to Figure 2 When the hopper is in the position, the DT3 solenoid is powered off, the DT2 solenoid is powered on, the valve group A1 port discharges oil, and the hopper is retracted. Figure 1 Position, a cycle ends.

[0034] Figure 5 This is the electrical schematic diagram of the electro-hydraulic combined control of material box 2 unloading.

[0035] Figure 6 This is the block diagram of the electro-hydraulic combined control of material box 2 unloading control.

[0036] The middle box contains a self-resetting rocker switch, which controls the hopper unloading and recycling. The two proximity switches are NPN type, which are usually low potential and output high potential when a signal arrives.

[0037] When the driver presses the unloading button, the hopper lifting solenoid valve DT1 is energized and the hopper lifting cylinder extends. When it extends until the material door opens and the proximity switch 6 is in place, Figure 2 When the material door is in the open position, the proximity switch 6 outputs a high level, the relay 2 is energized and disconnected, and the hopper lifting solenoid valve DT1 is de-energized; the relay 1 is energized and closed, the bottom door opening solenoid valve is energized, the bottom door cylinder is retracted, and the hopper is opened to realize unloading.

[0038] When the driver presses the button to retract the hopper, the material door closing solenoid valve DT3 is energized, the bottom door cylinder extends, and the hopper is closed. When it is closed until the material box is retracted and the proximity switch 7 is in place, Figure 2 When the material box is retracted to the right position, the proximity switch 7 outputs a high level, the relay 3 is energized and disconnected, and the material door closing solenoid valve DT3 is de-energized; the relay 4 is energized and attracted, the hopper retracting solenoid valve DT2 is energized, the hopper lifting cylinder is retracted, and the hopper descends to achieve retraction.

[0039] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A crawler type sugarcane harvester and buncher electro-hydraulic combined control material box unloading electrical system, characterized in that: It includes a sugarcane buncher body, an electro-hydraulic combined control bin unloading hydraulic system and an electro-hydraulic combined control bin unloading electrical system; The sugarcane buncher body comprises a chassis (1), a material box (2), left and right material doors (3), a material door oil cylinder (4) and a material box lifting oil cylinder (5); the material box (2) is installed at the top of the chassis (1); material box lifting oil cylinders (5) for controlling the lifting of the material box (2) are installed on both sides of the chassis (1) and located on the material box (2); two symmetrical left and right material doors (3) are arranged at the bottom of the material box (2); material door opening and closing oil cylinders are installed on both sides of the material box (2); a material door opening proximity switch (6) is installed on the front side of the material box (2); and a material box retracting proximity switch (7) is installed on the rear side of the material box (2); The material box lifting cylinder (5) and the material door cylinder (4) are controlled by an electro-hydraulic combined control material box unloading hydraulic system, and the electro-hydraulic combined control material box unloading hydraulic system includes a two-link solenoid valve group (8), and the two-link solenoid valve group (8) is provided with a hopper lifting electromagnet DT1, a hopper retracting electromagnet DT2, a material door closing electromagnet DT3 and a material door opening electromagnet DT4 to control the A1 port, B1 port, A2 port and B2 port of the two-link solenoid valve group (8); The electro-hydraulic combined control material box unloading electrical system comprises a material door opening proximity switch (6), a material box retracting proximity switch (7), a relay 1, a relay 2, a relay 3, a relay 4, a material unloading and retracting rocker switch, a hopper lifting electromagnet DT1, a hopper retracting electromagnet DT2, a material door closing electromagnet DT3 and a material door opening electromagnet DT4, wherein the relay 1 is electrically connected to the material door opening proximity switch (6) and is connected in series with the material unloading and retracting rocker switch, the relay 4 is connected in series with the material box retracting proximity switch (7) and the material unloading and retracting rocker switch, and the The relay 1 is also electrically connected to the material door opening electromagnet DT4, the relay 2 is electrically connected to the hopper lifting electromagnet DT1, the relay 3 is electrically connected to the material door closing electromagnet DT3, the relay 2 is also electrically connected to the material door opening proximity switch (6), the relay 3 is also electrically connected to the material box retraction proximity switch (7), the relay 4 is electrically connected to the hopper retraction electromagnet DT2, the material box (2) is equipped with a material door opening proximity switch (6) on the front side, and the material box (2) is equipped with a material box retraction proximity switch (7) on the rear side.

2. The crawler type sugarcane harvester and buncher electro-hydraulic combined control material box unloading electrical system according to claim 1, characterized in that: The door opening proximity switch (6) and the box retracting proximity switch (7) are both NPN type.

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