Quantitative hydraulic system with propulsion and forward flow distribution functions
By introducing propulsion and forward rotation flow distribution functions into the quantitative hydraulic system, and using adjustable sequence valves and check valves to combine excess flow, the problem of mismatch between the number of pumps and flow demand is solved, achieving a compact system and energy-saving effect.
Patent Information
- Application Number
- CN202520139686.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing quantitative hydraulic systems have a large number of pumps, which are difficult to arrange, and the flow requirements for propulsion and rotation are mismatched, resulting in energy loss and heat consumption.
A quantitative hydraulic system with propulsion and forward rotation flow distribution functions is adopted. It utilizes a gear pump with two oil outlets, a propulsion valve and a rotary valve, and achieves flow merging through an adjustable sequence valve and a check valve to reduce energy loss.
This resulted in a compact system structure, reduced energy loss, improved energy utilization efficiency, and lower heat consumption.
Smart Images
Figure CN223594572U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hydraulic control technical field especially relates to a kind of quantitative hydraulic system with propulsion and positive rotation flow distribution function. BACKGROUND
[0002] In quantitative system, to realize normal propulsion, fast propulsion and rotation, the traditional method adopts 3 pump form, 1 pump pipe normal propulsion, 1 pump pipe rotation and 1 pump pipe confluence guarantee fast propulsion. Plus dust collection pump, the number of pump will be many, especially when PTO port less diesel engine is arranged, it is very difficult. The pump displacement of normal propulsion cannot be too small, and it is operated complicatedly by confluence each time, and the flow requirement is very small during drilling process, and the excess flow is overflowed with high pressure, which generates heat consumption and brings pressure to heat dissipation system. UTILITY MODEL CONTENT
[0003] In order to solve the above technical problems, the utility model aims at providing a quantitative hydraulic system with propulsion and positive rotation flow distribution function, which is compact in structure, energy-saving and environment-friendly.
[0004] In order to realize the above utility model purpose, the utility model adopts the following technical scheme:
[0005] The quantitative hydraulic system with propulsion and positive rotation flow distribution function comprises an oil tank, a gear pump, a propulsion valve, a rotation valve, a propulsion oil cylinder and a rotation motor, the gear pump comprises two oil inlets T1 and T2 and two oil outlets P1 and P2, the oil inlets T1 and T2 are connected with the oil tank, the oil outlets P1 and P2 of the gear pump are respectively communicated with P1 and P2 ports through the propulsion valve and the rotation valve, two output ports A1 and B1 of the propulsion valve are respectively communicated with B port and A port of the propulsion oil cylinder, two output ports A2 and B2 of the rotation valve are respectively communicated with positive rotation port and reverse rotation port of the rotation motor, an adjustable pressure reducing valve is further arranged in front of the output port A1 of the propulsion valve, and an overflow port of the adjustable pressure reducing valve is communicated with the output port A2 of the rotation valve through an adjustable sequence valve.
[0006] As a preferred scheme, an adjustable throttle valve is further arranged between the adjustable sequence valve and the output port A2 of the rotation valve.
[0007] As a preferred scheme, a one-way valve is further arranged between the adjustable sequence valve and the adjustable throttle valve.
[0008] As a preferred scheme, a pressure measuring port M1 is arranged on the propulsion valve, and a pressure measuring port M12 is further arranged at the output port A1 of the propulsion valve.
[0009] As a preferred scheme, a pressure measuring port M2 is arranged on the rotation valve, and a pressure measuring port M22 is further arranged at the output port A2 of the rotation valve.
[0010] As a preferred solution, the overflow port of the propulsion valve is connected to the oil tank or the gear pump inlet T1, and the overflow port of the adjustable sequence valve is connected to the oil tank.
[0011] As a preferred solution, the overflow port of the rotation valve is connected to the oil tank or the gear pump inlet T2.
[0012] As a preferred solution, the connection pipeline between the rotation valve output port A2 and the rotation motor positive rotation port is further connected with an electromagnetic valve and an overflow valve, and the overflow valve is connected to the oil tank.
[0013] Compared with the prior art, the utility model has the beneficial effects that:
[0014] The gear pump has two oil outlets, simple structure, and the adjustable sequence valve is arranged in communication between the output port A1 of the propulsion valve and the output port A2 of the rotation valve, so that when the propulsion pressure is higher than the sequence valve set pressure, the excess flow is combined to the rotation through the sequence valve. The utility model has the advantages of compact structure, and the original propulsion overflow flow is combined to the rotation, energy loss is reduced, and energy saving and environmental protection are achieved. BRIEF DESCRIPTION OF DRAWINGS
[0015] The drawings accompanying the specification are used to provide further understanding of the application, and the illustrative embodiments of the application and their descriptions are used to explain the application, and do not constitute limitations on the application.
[0016] Figure 1 It is a structural schematic view of the utility model.
[0017] The figure signs are: 1, oil tank; 2, gear pump; 3, propulsion valve; 4, adjustable pressure reducing valve; 5, rotation valve; 6, adjustable sequence valve; 7, check valve; 8, adjustable throttle valve; 9, propulsion oil cylinder; 10, rotation motor. DETAILED DESCRIPTION
[0018] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the application pertains.
[0019] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and in addition, it should be understood that when the terms "comprise" and / or "include" are used in the specification, they refer to the presence of a feature, step, operation, device, component and / or combination thereof.
[0020] Further, in the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0021] Further, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more, unless otherwise explicitly limited.
[0022] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0023] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0024] The utility model will be further described below in combination with the drawings and examples:
[0025] As Figure 1The quantitative hydraulic system with propelling and positive rotation flow distribution function shown includes an oil tank 1, a gear pump 2, a propelling valve 3, a rotation valve 5, a propelling cylinder 9 and a rotation motor 10, the gear pump 2 includes two oil inlets T1, T2 and two oil outlets P1, P2, the oil inlets T1, T2 are connected with the oil tank 1, the oil outlets P1, P2 of the gear pump 2 are respectively communicated with P1, P2 ports through the propelling valve 3 and the rotation valve 5, two output ports A1, B1 of the propelling valve 3 are respectively communicated with B port and A port of the propelling cylinder 9, two output ports A2, B2 of the rotation valve 5 are respectively communicated with positive rotation port and reverse rotation port of the rotation motor 10, an adjustable pressure reducing valve 4 is further arranged in front of the output port A1 of the propelling valve 3, and an overflow port of the adjustable pressure reducing valve 4 is communicated with the output port A2 of the rotation valve 5 through an adjustable sequence valve 6.
[0026] An adjustable throttle valve 8 is further arranged between the adjustable sequence valve 6 and the output port A2 of the rotation valve 5.
[0027] The propelling rotation and fast propelling adopt a 2-pump system, and the structure is simple, the adjustable pressure reducing valve is arranged in the output port A1 of the propelling valve 3 to meet the required pressure during propelling, the adjustable overflow valve is arranged in the output port A2 of the rotation valve 5 to meet the required pressure during positive rotation, the adjustable sequence valve, the one-way valve and the adjustable throttle valve are arranged between the A1 port and the A2 port, when the propelling pressure is higher than the set pressure of the sequence valve, the excess flow during propelling is guided to the positive rotation through the sequence valve. The one-way valve ensures that the oil liquid can only flow from the propelling to the positive rotation, and the adjustable throttle valve can adjust the flow of the confluence.
[0028] The propelling valve 3 is provided with a pressure measuring port M1, and the output port A1 of the propelling valve 3 is further provided with a pressure measuring port M12. The rotation valve 5 is provided with a pressure measuring port M2, and the output port A2 of the rotation valve 5 is further provided with a pressure measuring port M22. The above structure can meet the requirement of convenient temporary pressure measurement.
[0029] The overflow port of the propelling valve 3 is connected to the oil tank 1 or the oil inlet T1 of the gear pump 2, and the overflow port of the adjustable sequence valve 6 is connected to the oil tank 1. The overflow port of the rotation valve 5 is connected to the oil tank 1 or the oil inlet T2 of the gear pump 2.
[0030] The positive rotation port of the rotation motor 10 and the connecting pipeline of the output port A2 of the rotation valve 5 are further connected with an electromagnetic valve and an overflow valve, and the overflow valve is connected to the oil tank 1.
[0031] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0032] Although the embodiments of the present application have been shown and described above, it should be understood that the above-described embodiments are exemplary, and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application without departing from the principles and spirits of the present application. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above-described embodiments still belong to the scope of the technical scheme of the present application.
Claims
1. A metering hydraulic system with both propelling and positive flow dispensing functions, characterized in that: The hydraulic system comprises an oil tank (1), a gear pump (2), a propulsion valve (3), a rotary valve (5), a propulsion cylinder (9) and a rotary motor (10), the gear pump (2) comprises two oil inlets T1, T2 and two oil outlets P1, P2, the oil inlets T1, T2 are connected with the oil tank (1), the oil outlets P1, P2 of the gear pump (2) are respectively communicated with P1, P2 ports of the propulsion valve (3) and the rotary valve (5), two output ports A1, B1 of the propulsion valve (3) are respectively communicated with B port and A port of the propulsion cylinder (9), two output ports A2, B2 of the rotary valve (5) are respectively communicated with positive rotation port and reverse rotation port of the rotary motor (10), an adjustable pressure reducing valve (4) is further arranged in front of the output port A1 of the propulsion valve (3), an overflow port of the adjustable pressure reducing valve (4) is communicated with the output port A2 of the rotary valve (5) through an adjustable sequence valve (6).
2. The dosing hydraulic system with both propelling and positive rotation flow distribution functions according to claim 1, characterized in that, An adjustable throttle valve (8) is further arranged between the adjustable sequence valve (6) and the output port A2 of the rotary valve (5).
3. The dosing hydraulic system with both propelling and positive rotation flow distribution functions according to claim 2, characterized in that, A one-way valve (7) is further arranged between the adjustable sequence valve (6) and the adjustable throttle valve (8).
4. The metering hydraulic system with both propelling and positive rotation flow distribution functions according to claim 1, wherein, A pressure measuring port M1 is arranged on the propulsion valve (3), and a pressure measuring port M12 is further arranged at the output port A1 of the propulsion valve (3).
5. The metering hydraulic system with both propelling and positive rotation flow distribution functions according to claim 1, wherein, A pressure measuring port M2 is arranged on the rotary valve (5), and a pressure measuring port M22 is further arranged at the output port A2 of the rotary valve (5).
6. The metering hydraulic system with both propelling and positive rotation flow distribution functions according to claim 1, wherein, The overflow port of the propulsion valve (3) is connected to the oil tank (1) or the oil inlet T1 of the gear pump (2), and the overflow port of the adjustable sequence valve (6) is connected to the oil tank (1).
7. The metering hydraulic system with both propelling and positive rotation flow distribution functions according to claim 1, wherein, The overflow port of the rotary valve (5) is connected to the oil tank (1) or the oil inlet T2 of the gear pump (2).
8. The metering hydraulic system with both propelling and positive rotation flow distribution functions according to claim 1, wherein, An electromagnetic valve and an overflow valve are further connected to the connecting pipeline of the positive rotation port of the rotary motor (10) and the output port A2 of the rotary valve (5), and the overflow valve is connected to the oil tank (1). An adjustable throttle valve (8) is further arranged between the adjustable sequence valve (6) and the output port A2 of the rotary valve (5). A one-way valve (7) is further arranged between the adjustable sequence valve (6) and the adjustable throttle valve (8). A pressure measuring port M1 is arranged on the propulsion valve (3), and a pressure measuring port M12 is further arranged at the output port A1 of the propulsion valve (3). A pressure measuring port M2 is arranged on the rotary valve (5), and a pressure measuring port M22 is further arranged at the output port A2 of the rotary valve (5). The overflow port of the propulsion valve (3) is connected to the oil tank (1) or the oil inlet T1 of the gear pump (2), and the overflow port of the adjustable sequence valve (6) is connected to the oil tank (1). The overflow port of the rotary valve (5) is connected to the oil tank (1) or the oil inlet T2 of the gear pump (2). An electromagnetic valve and an overflow valve are further connected to the connecting pipeline of the positive rotation port of the rotary motor (10) and the output port A2 of the rotary valve (5), and the overflow valve is connected to the oil tank (1).