CN203040228U - Hydraulic control device capable of adjusting density of straw bales and applicable to picking-up round baler - Google Patents
Hydraulic control device capable of adjusting density of straw bales and applicable to picking-up round baler Download PDFInfo
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- CN203040228U CN203040228U CN 201320077206 CN201320077206U CN203040228U CN 203040228 U CN203040228 U CN 203040228U CN 201320077206 CN201320077206 CN 201320077206 CN 201320077206 U CN201320077206 U CN 201320077206U CN 203040228 U CN203040228 U CN 203040228U
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Abstract
The utility model relates to a hydraulic control device capable of adjusting the density of straw bales and applicable to a picking-up round baler. The hydraulic control device comprises a hydraulic cylinder, a low-pressure safety valve, an adjustable high-pressure safety valve, a hydraulic control one-way valve, a hydraulic pressure gauge, an oil path D2 and an oil path D1, wherein the starting end of the oil path D2 is connected with a hydraulic joint of a tractor, and the tail end of the oil path D2 is communicated with a rodless inner cavity of the hydraulic cylinder; the starting end of the oil path D1 is connected with a hydraulic joint of the tractor, the tail end of the oil path D1 is communicated with a rod inner cavity of the hydraulic cylinder and the oil path D1 is connected with a hydraulic control one-way valve; and the position of a node b on the oil path D2 is connected with a control oil path of the hydraulic control one-way valve through an oil pipe. The hydraulic control device has the advantages that in working, the pressure of a compressing roll at the end part of a connecting rod on the outer cylindrical surface of the round straw bale can be adjusted by setting the back pressure of the adjustable high-pressure safety valve, and the larger the pressure is, the larger the density of the round straw bale is, so that the function of the picking-up round baler for adjusting the density of the round straw bale is realized.
Description
Technical field
The utility model relates to the pick-up round baler of agricultural mechanical field, particularly a kind of hydraulic control device that is applicable to the adjustable knotweed bundle density of pick-up round baler.
Background technology
Machine for forming cylindrical bale is used commonplace equipment in now farming and animal husbandry is produced, it is mainly used in flexible crops such as herbage are picked up and breaks into circular bale after entering machine for forming cylindrical bale.But traditional machine for forming cylindrical bale is that the press-box volume is certain, be that the press-box volume does not change with the bale size, be equivalent in press-box, fill herbage, thereby make the bale core of getting loose, outer closely knit, and its density of getting bale of traditional machine for forming cylindrical bale is certain, according to demand the required bale density of regulated at will; We design a kind of machine for forming cylindrical bale of interior wound form, its press-box volume can be followed the bale size and be changed, the bale density that this kind machine for forming cylindrical bale is got is inside and outside consistent, the bale global density is big, and can satisfy the function that machine for forming cylindrical bale is got the bale of different densities by its hydraulic control device is set, here said a kind of hydraulic control device of the adjustable knotweed bundle density of pick-up round baler that is applicable to be applicable to this type of machine for forming cylindrical bale exactly.
Related to the hydraulic control check valve in this invention, its principle is to rely on the control fluid pressure, can make the valve of check valve reverse circulated.Hydraulic control check valve and common check valve difference have been many control oil circuit, when control oil circuit access failure pressure oil liquid, the hydraulic control check valve is worked just as common check valve, and pressure oil only flows to oil-out from oil-in, can not reverse flow.When control oil circuit cut-in pressure oil, the piston mandril of hydraulic control check valve backs down check valve under the pressure oil effect, oil inlet and outlet is connected.If the oil pressure of oil-out just can make the hydraulic oil reverse flow greater than the oil pressure of oil-in end.
The utility model content
Technical problem to be solved in the utility model provides a kind of hydraulic control device that is applicable to the adjustable knotweed bundle density of pick-up round baler, it can realize the opening of pick-up round baler bonnet, closure, can also realize the difference of the bundle density of beating the grass by hydraulic control device is set.
For solving the problems of the technologies described above, the utility model is realized as follows: a kind of hydraulic control device of the adjustable knotweed bundle density of pick-up round baler that is applicable to described in the utility model comprises hydraulic jack, low-pressure safety valve, adjustable high-pressure safety valve, hydraulic control check valve, hydralic pressure gauge, oil circuit D2 and oil circuit D1; The initiating terminal of described oil circuit D2 is connected with the hydraulic interface of tractor, and the end of oil circuit D2 is communicated with the no bar inner chamber of hydraulic jack, and oil circuit D2 is provided with node a, node b and node c; The initiating terminal of described oil circuit D1 is connected with the hydraulic interface of tractor, the end of oil circuit D1 is communicated with the bar inner chamber that has of hydraulic jack, be connected with the hydraulic control check valve on the oil circuit D1, oil circuit D1 is provided with node d and node e, described node d is positioned at the oil-in end of hydraulic control check valve, and described node e is positioned at the oil-out end of hydraulic control check valve; Described low-pressure safety valve is arranged between node a and the node d; Described adjustable high-pressure safety valve is arranged between node c and the node e; Described oil circuit D2 goes up the node b place that arranges and is connected with the control oil circuit of hydraulic control check valve by oil pipe.
Described hydraulic jack is left and right two, and the end of oil circuit D2 is communicated with the no bar inner chamber of left and right hydraulic jack respectively, and the end of oil circuit D1 is communicated with the bar inner chamber that has of left and right hydraulic jack respectively.
Described hydralic pressure gauge is arranged at having on the bar inner chamber pipeline of connection hydraulic jack, is used for showing the oil pressure of adjustable high-voltage safety opening of valves, thereby measures bale density.
Described hydraulic jack comprises cylinder wall and cylinder putter, and the bonnet formation of described cylinder putter and pick-up round baler is hinged, and it can promote bonnet and open and close; The one end formation of the connecting rod of described cylinder wall and pick-up round baler is hinged, connecting rod is " 7 " font, the other end of connecting rod is connected with compression roll, compression roll is abutted against on the external cylindrical surface of circle bale, the middle part of connecting rod is hinged by the frame formation of fulcrum and pick-up round baler, and connecting rod can rotate around fulcrum.
The back pressure of described low-pressure safety valve setting is lower than the back pressure that adjustable high-pressure safety valve arranges.
The control principle of hydraulic control device that is applicable to the adjustable knotweed bundle density of pick-up round baler is:
1) in the process that control pick-up round baler bonnet is opened, oil circuit D2 is pressure oil, and its hydraulic interface that connects tractor is oil-out, and pressure oil enters the no bar inner chamber of hydraulic jack by oil circuit D2; Simultaneously, pressure oil is communicated with the control oil circuit of hydraulic control check valve by oil pipe at node b place, thereby makes the hydraulic control one-way valve opens; The hydraulic oil in the bar inner chamber that has of hydraulic jack flows back to the tractor hydraulic fuel tank by oil circuit D1; Hydraulic jack oil pressure in the bar inner chamber is arranged less than the oil pressure in the no bar inner chamber, thereby promoting cylinder putter travels forward, open the pick-up round baler bonnet, open to the hydraulic jack stroke during long position at the pick-up round baler bonnet, tractor is continuously oil circuit D2 fuel feeding, oil pressure in the oil circuit D2 will be greater than the back pressure of low-pressure safety valve, thereby low-voltage safety opening of valves, hydraulic oil flows back to the tractor hydraulic fuel tank by oil circuit D1, by controlling Lock for tractor dead oil road D1 and oil circuit D2, the pick-up round baler bonnet will remain on opening this moment;
2) in the process that control pick-up round baler bonnet is closed, oil circuit D1 is pressure oil, its hydraulic interface that connects tractor is oil-out, and the hydraulic control check valve be to be opening under the effect of pressure oil, and pressure oil has a bar inner chamber by what oil circuit D1 entered hydraulic jack; Hydraulic oil in the no bar inner chamber of hydraulic jack flows back to the tractor hydraulic fuel tank by oil circuit D2; Hydraulic jack oil pressure in the bar inner chamber is arranged greater than the oil pressure in the no bar inner chamber, thereby promoting cylinder putter moves backward, close the pick-up round baler bonnet, close to the hydraulic jack stroke during short position at the pick-up round baler bonnet, tractor is continuously oil circuit D1 fuel feeding, oil pressure in the oil circuit D1 is greater than the back pressure of low-pressure safety valve, thereby low-voltage safety opening of valves, hydraulic oil flows back to the tractor hydraulic fuel tank by oil circuit D2, by controlling Lock for tractor dead oil road D1 and oil circuit D2, the pick-up round baler bonnet will remain on closed condition this moment;
3) in the process of control pick-up round baler bundling, the pick-up round baler bonnet is in closed condition, oil circuit D1 and oil circuit D2 are in locking state, one end and the cylinder wall formation of picking up the connecting rod of machine for forming cylindrical bale are hinged, the compression roll that the other end connects is abutted against on the external cylindrical surface of circle bale, in the process of machine for forming cylindrical bale work, the diameter of circle bale can be more and more big, thereby promotion is picked up the compression roll of the interlinking lever end of machine for forming cylindrical bale and is rotated around its fulcrum, when rotating, be hinged because an end of connecting rod and cylinder wall constitute, move backward thereby will spur cylinder wall; This moment, hydraulic jack oil pressure in the bar inner chamber is arranged greater than the oil pressure in the no bar inner chamber, adjustable high-voltage safety opening of valves, hydraulic jack hydraulic oil in the bar inner chamber is arranged by pipeline and adjustable high-pressure safety valve, will flow into the no bar inner chamber of hydraulic jack, realize circulation in the hydraulic oil of hydraulic jack inside, when the diameter of the round bale of pick-up round baler inside reaches setting value, alarm will be arranged, and control the pick-up round baler bonnet and open, will justify bale and unload; In the process of machine for forming cylindrical bale bundling, by setting the back pressure of adjustable high-pressure safety valve, the compression roll that can adjust interlinking lever end is pressed in the pressure on the external cylindrical surface of round bale, pressure is more big, its density of beating the circle bale is also just more big, thereby has realized that pick-up round baler can regulate institute and beat the function of justifying bale density.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the schematic diagram of hydraulic control device
Fig. 2 is the working state schematic representation a of binder fluid,matching pressure control device
Fig. 3 is the working state schematic representation b of binder fluid,matching pressure control device
Fig. 4 is the view that unloads round bale of binder fluid,matching pressure control device
Among the figure, 1 has bar inner chamber 2 hydraulic jacks 3 no bar inner chambers
4 adjustable high-pressure safety valve 5 low-pressure safety valves 6 hydraulic control check valves
7 hydralic pressure gauges, 8 cylinder putters, 9 connecting rods
10 bonnets, 11 circle bales, 12 node a
13 node b, 14 node c, 15 node d
16 node e
Embodiment
As shown in Figures 1 to 4, a kind of hydraulic control device of the adjustable knotweed bundle density of pick-up round baler that is applicable to described in the utility model comprises hydraulic jack (2), low-pressure safety valve (5), adjustable high-pressure safety valve (4), hydraulic control check valve (6), hydralic pressure gauge (7), oil circuit D2 and oil circuit D1; Described hydraulic jack (2) is left and right two, and the end of oil circuit D2 is communicated with the no bar inner chamber (3) of left and right hydraulic jack (2) respectively, and the end of oil circuit D1 is communicated with the bar inner chamber (1) that has of left and right hydraulic jack (2) respectively; The initiating terminal of described oil circuit D2 is connected with the hydraulic interface of tractor, and the end of oil circuit D2 is communicated with the no bar inner chamber (3) of hydraulic jack (2), and oil circuit D2 is provided with node a (12), node b (13) and node c (14); The initiating terminal of described oil circuit D1 is connected with the hydraulic interface of tractor, the end of oil circuit D1 is communicated with the bar inner chamber (1) that has of hydraulic jack (2), be connected with hydraulic control check valve (6) on the oil circuit D1, oil circuit D1 is provided with node d (15) and node e (16), described node d (15) is positioned at the oil-in end of hydraulic control check valve (6), and described node e (16) is positioned at the oil-out end of hydraulic control check valve (6); Described low-pressure safety valve (5) is arranged between node a (12) and the node d (15); Described adjustable high-pressure safety valve (4) is arranged between node c (14) and the node e (16); The back pressure that described low-pressure safety valve (5) arranges is lower than the back pressure that adjustable high-pressure safety valve (4) arranges; Described oil circuit D2 goes up the node b (13) that arranges and locates to be connected by the control oil circuit of oil pipe with hydraulic control check valve (6).
Described hydralic pressure gauge (7) is arranged at having on bar inner chamber (1) pipeline of connection hydraulic jack (2), is used for showing the oil pressure of adjustable high-pressure safety valve (4) unlatching, thereby measures bale density.
Described hydraulic jack (2) comprises cylinder wall and cylinder putter (8), and described cylinder putter (8) is hinged with bonnet (10) formation of pick-up round baler, and it can promote bonnet (10) and open and close; As Fig. 2, Fig. 3 and shown in Figure 4, the one end formation of the connecting rod of described cylinder wall and pick-up round baler (9) is hinged, connecting rod (9) is " 7 " font, the other end of connecting rod (9) is connected with compression roll, compression roll is abutted against on the external cylindrical surface of circle bale (11), the middle part of connecting rod (9) is hinged by the frame formation of fulcrum and pick-up round baler, and connecting rod can rotate around fulcrum.
The control principle of hydraulic control device that is applicable to the adjustable knotweed bundle density of pick-up round baler is:
1) in the process that control pick-up round baler bonnet (10) is opened, oil circuit D2 is pressure oil, and its hydraulic interface that connects tractor is oil-out, and pressure oil enters the no bar inner chamber (3) of hydraulic jack by oil circuit D2; Simultaneously, pressure oil is located to be communicated with by the control oil circuit of oil pipe with hydraulic control check valve (6) at node b (13), thereby makes hydraulic control check valve (6) open; The hydraulic oil in the bar inner chamber (1) that has of hydraulic jack (2) flows back to the tractor hydraulic fuel tank by oil circuit D1; Hydraulic jack (2) oil pressure in the bar inner chamber (1) is arranged less than the interior oil pressure of no bar inner chamber (3), thereby promoting cylinder putter (8) travels forward, open pick-up round baler bonnet (10), open to hydraulic jack (2) stroke during long position at pick-up round baler bonnet (10), tractor is continuously oil circuit D2 fuel feeding, oil pressure in the oil circuit D2 will be greater than the back pressure of low-pressure safety valve (5), thereby low-pressure safety valve (5) is opened, hydraulic oil flows back to the tractor hydraulic fuel tank by oil circuit D1, by controlling Lock for tractor dead oil road D1 and oil circuit D2, pick-up round baler bonnet (10) will remain on opening this moment;
2) in the process that control pick-up round baler bonnet (10) is closed, oil circuit D1 is pressure oil, its hydraulic interface that connects tractor is oil-out, hydraulic control check valve (6) be under the effect of pressure oil for opening, pressure oil has a bar inner chamber (1) by what oil circuit D1 entered hydraulic jack (2); Hydraulic oil in the no bar inner chamber (3) of hydraulic jack (2) flows back to the tractor hydraulic fuel tank by oil circuit D2; Hydraulic jack (2) oil pressure in the bar inner chamber (1) is arranged greater than the interior oil pressure of no bar inner chamber (3), thereby promoting cylinder putter (8) moves backward, close pick-up round baler bonnet (10), close to hydraulic jack (2) stroke during short position at pick-up round baler bonnet (10), tractor is continuously oil circuit D1 fuel feeding, oil pressure in the oil circuit D1 is greater than the back pressure of low-pressure safety valve (5), thereby low-pressure safety valve (5) is opened, hydraulic oil flows back to the tractor hydraulic fuel tank by oil circuit D2, by controlling Lock for tractor dead oil road D1 and oil circuit D2, pick-up round baler bonnet (10) will remain on closed condition this moment;
3) extremely shown in Figure 4 as Fig. 2, in the process of control pick-up round baler bundling, pick-up round baler bonnet (10) is in closed condition, oil circuit D1 and oil circuit D2 are in locking state, one end and the cylinder wall formation of picking up the connecting rod (9) of machine for forming cylindrical bale are hinged, the compression roll that the other end connects is abutted against on the external cylindrical surface of circle bale (11), in the process of machine for forming cylindrical bale work, the diameter of circle bale (11) can be more and more big, thereby promotion is picked up the compression roll of connecting rod (9) end of machine for forming cylindrical bale and is rotated around its fulcrum, when rotating, be hinged because an end of connecting rod (9) and cylinder wall constitute, move backward thereby will spur cylinder wall; This moment, hydraulic jack (2) oil pressure in the bar inner chamber (1) is arranged greater than the interior oil pressure of no bar inner chamber (3), adjustable high-pressure safety valve (4) is opened, hydraulic jack (2) hydraulic oil in the bar inner chamber (1) is arranged by pipeline and adjustable high-pressure safety valve (4), to flow into the no bar inner chamber (3) of hydraulic jack (2), realize circulation in the inner hydraulic oil of hydraulic jack (2), when the diameter of the round bale (11) of pick-up round baler inside reaches setting value, alarm will be arranged, and control pick-up round baler bonnet (10) and open, will justify bale (11) and unload; In the process of machine for forming cylindrical bale bundling, by setting the back pressure of adjustable high-pressure safety valve (4), the compression roll that can adjust connecting rod (9) end is pressed in the pressure on the external cylindrical surface of round bale (11), pressure is more big, its density of beating circle bale (11) is also just more big, thereby has realized that pick-up round baler can regulate institute and beat the function of justifying bale density.
Claims (5)
1. hydraulic control device that is applicable to the adjustable knotweed bundle density of pick-up round baler, comprise hydraulic jack, low-pressure safety valve, adjustable high-pressure safety valve, hydraulic control check valve, hydralic pressure gauge, oil circuit D2 and oil circuit D1, it is characterized in that: the initiating terminal of described oil circuit D2 is connected with the hydraulic interface of tractor, the end of oil circuit D2 is communicated with the no bar inner chamber of hydraulic jack, and oil circuit D2 is provided with node a, node b and node c; The initiating terminal of described oil circuit D1 is connected with the hydraulic interface of tractor, the end of oil circuit D1 is communicated with the bar inner chamber that has of hydraulic jack, be connected with the hydraulic control check valve on the oil circuit D1, oil circuit D1 is provided with node d and node e, described node d is positioned at the oil-in end of hydraulic control check valve, and described node e is positioned at the oil-out end of hydraulic control check valve; Described low-pressure safety valve is arranged between node a and the node d; Described adjustable high-pressure safety valve is arranged between node c and the node e; Described oil circuit D2 goes up the node b place that arranges and is connected with the control oil circuit of hydraulic control check valve by oil pipe.
2. a kind of hydraulic control device that is applicable to the adjustable knotweed bundle density of pick-up round baler according to claim 1, it is characterized in that: described hydraulic jack is left and right two, the end of oil circuit D2 is communicated with the no bar inner chamber of left and right hydraulic jack respectively, and the end of oil circuit D1 is communicated with the bar inner chamber that has of left and right hydraulic jack respectively.
3. a kind of hydraulic control device that is applicable to the adjustable knotweed bundle density of pick-up round baler according to claim 1 is characterized in that: described hydralic pressure gauge is arranged at and is communicated with the having on the bar inner chamber pipeline of hydraulic jack.
4. a kind of hydraulic control device that is applicable to the adjustable knotweed bundle density of pick-up round baler according to claim 1, it is characterized in that: described hydraulic jack comprises cylinder wall and cylinder putter, the bonnet formation of described cylinder putter and pick-up round baler is hinged, and it can promote bonnet and open and close; The one end formation of the connecting rod of described cylinder wall and pick-up round baler is hinged, connecting rod is " 7 " font, the other end of connecting rod is connected with compression roll, compression roll is abutted against on the external cylindrical surface of circle bale, the middle part of connecting rod is hinged by the frame formation of fulcrum and pick-up round baler, and connecting rod can rotate around fulcrum.
5. a kind of hydraulic control device that is applicable to the adjustable knotweed bundle density of pick-up round baler according to claim 1, it is characterized in that: the back pressure of described low-pressure safety valve setting is lower than the back pressure that adjustable high-pressure safety valve arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320077206 CN203040228U (en) | 2013-02-20 | 2013-02-20 | Hydraulic control device capable of adjusting density of straw bales and applicable to picking-up round baler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320077206 CN203040228U (en) | 2013-02-20 | 2013-02-20 | Hydraulic control device capable of adjusting density of straw bales and applicable to picking-up round baler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203040228U true CN203040228U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320077206 Expired - Lifetime CN203040228U (en) | 2013-02-20 | 2013-02-20 | Hydraulic control device capable of adjusting density of straw bales and applicable to picking-up round baler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203040228U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103141229A (en) * | 2013-02-01 | 2013-06-12 | 中机美诺科技股份有限公司 | Hydraulic control device capable of adjusting bale density and applicable to pick-up rotary baler |
| CN104635582B (en) * | 2015-01-15 | 2018-01-16 | 江苏大学 | A kind of car-mounted terminal of round bale baler and control system and method |
| CN109383868A (en) * | 2017-08-02 | 2019-02-26 | 迪尔公司 | Control device, baler and the method for the discharging flashboard of baler |
-
2013
- 2013-02-20 CN CN 201320077206 patent/CN203040228U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103141229A (en) * | 2013-02-01 | 2013-06-12 | 中机美诺科技股份有限公司 | Hydraulic control device capable of adjusting bale density and applicable to pick-up rotary baler |
| CN104635582B (en) * | 2015-01-15 | 2018-01-16 | 江苏大学 | A kind of car-mounted terminal of round bale baler and control system and method |
| CN109383868A (en) * | 2017-08-02 | 2019-02-26 | 迪尔公司 | Control device, baler and the method for the discharging flashboard of baler |
| CN109383868B (en) * | 2017-08-02 | 2022-06-03 | 迪尔公司 | Control device of discharge gate of bundling machine, bundling machine and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |
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| CX01 | Expiry of patent term |