Hybrid power system

Abstract

The utility model provides a hybrid power system which is characterized in that the system comprises an engine (1), and an output shaft of the engine is connected with a shock absorber (2); the other end of the shock absorber (2) is connected with a main clutch (3); the other end of the main clutch (3) is connected with a motor (4); the output end of the motor (4) is connected with an output load (OUT), and the motor can serve as a driving motor and can also serve as a power generation motor; the main clutch can be selectively connected or disconnected to achieve the corresponding working modes of engine independent driving, motor independent driving, engine and motor hybrid driving and engine driving and motor power generation. The power performance is excellent, double-power-source cooperation can be achieved (when high power is needed), smaller engines can be selected, cost is reduced, and power output is efficient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of rotary drilling rig power drive system, and specifically relates to a hybrid power system. BACKGROUND

[0002] The driving scheme of the conventional rotary drilling rig in the prior art is to directly drive a hydraulic pump through an engine, and the scheme has the following defects in actual use:

[0003] 1) Few working modes, and limited adaptability to geology and scenes;

[0004] 2) High noise and large vibration during work;

[0005] 3) High energy consumption and operation cost;

[0006] 4) Inconsistent with the development direction of low-carbon and new energy, and limited in regions, and some places have completely required to ban the rotary drilling rig driven by a pure engine;

[0007] Therefore, a new scheme needs to be designed to solve the defects and deficiencies in the prior art. UTILITY MODEL CONTENT

[0008] In order to solve the defects and deficiencies in the prior art, the utility model provides a hybrid power system.

[0009] The technical scheme provided by the utility model is as follows:

[0010] A hybrid power system, characterized in that the system comprises:

[0011] An engine, wherein an output shaft of the engine is connected with a damper;

[0012] The damper, wherein the other end of the damper is connected with a main clutch;

[0013] The main clutch, wherein the other end of the main clutch is connected with a motor;

[0014] The motor, wherein an output end of the motor is connected with an output load, and the motor can be used as a driving motor or a power generation motor;

[0015] The main clutch can be selectively engaged or disconnected to realize corresponding working modes of engine-only driving, motor-only driving, engine and motor hybrid driving, and engine driving and motor power generation.

[0016] As a further preferred embodiment of the utility model, the damper is a rubber torsional damper.

[0017] As a further preferred embodiment of the utility model, the main clutch is a dog clutch.

[0018] As a further preferred embodiment of the utility model, the motor selects three-phase permanent magnet synchronous motor.

[0019] As a further preferred embodiment of the utility model, the output load at least includes output hydraulic pump.

[0020] As a further preferred embodiment of the utility model, when the engine single drive mode: main clutch engagement, engine single output power, motor with rotation but not start.

[0021] As a further preferred embodiment of the utility model, when the motor single drive mode: main clutch disconnection, motor single output power, engine is in the state of shutdown or idle speed.

[0022] As a further preferred embodiment of the utility model, when the engine and motor hybrid drive mode: main clutch engagement, engine and motor common output power.

[0023] As a further preferred embodiment of the utility model, when the engine drive and motor generation mode: main clutch engagement, engine output power part for motor generation, part directly drives output load, and the proportion of the output power of the engine for driving and generating can be adjusted as required.

[0024] As a further preferred embodiment of the utility model, the motor and output load are further connected with output clutch, and the output clutch selects dog clutch.

[0025] Compared with the prior art, the utility model has the beneficial effects that include:

[0026] 1) The utility model provides a kind of hybrid power system, and power performance is superior, can realize double power source cooperation (when high-power demand), and optional type smaller engine, reduce cost, and power output is efficient.

[0027] 2) The utility model provides a kind of hybrid power system, can select different working modes in combination with actual geology, and oil-saving rate is good, and fuel economy is high.

[0028] 3) The utility model provides a kind of hybrid power system, in multiple mode working conditions, and working condition scene adaptability is strong.

[0029] 4) The utility model provides a kind of hybrid power system, simple structure, easy to realize, and rotary drilling whole machine is convenient to install.

[0030] 5) The utility model provides a kind of hybrid power system, actual use experience is good, low noise in pure electric mode, no emission, more environmentally friendly.

[0031] 6)The utility model provides a kind of hybrid power system, compared with range extending scheme, less one motor, reduce cost, save layout space. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is the logical structure schematic diagram of the first embodiment of the utility model.

[0033] Figure 2 It is the actual installation schematic diagram of the first embodiment of the utility model.

[0034] Figure 3 It is the logical structure schematic diagram of the second embodiment of the utility model. DETAILED DESCRIPTION

[0035] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0036] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "another end" and the like is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected;It can be mechanical connection, can also be electrical connection;It can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0038] [First embodiment]

[0039] As Figures 1-2 The utility model provides a kind of hybrid power system, including:

[0040] Engine 1, the output shaft of the engine is connected to the damper 2, and due to the connection of the motor at the rear end, the selected power of the engine 1 can be appropriately reduced to reduce the cost, and the missing power part can be provided by the motor;

[0041] Damper 2, the other end of the damper is connected to the main clutch 3, and the damper 2 in the embodiment is selected as a rubber torsional damper;

[0042] Main clutch 3, the other end of the main clutch 3 is connected to the motor 4, and the main clutch 3 in the embodiment is selected as a dog clutch, which can be selectively engaged or disconnected to realize different driving modes of the system;

[0043] Motor 4, the output end of the motor 4 is connected to the output load OUT, and the motor 4 in the embodiment is selected as a three-phase permanent magnet synchronous motor, and the output load OUT at least includes an output hydraulic pump, and the motor 4 in the embodiment can be used as a driving motor or a generator to meet the power output demand in different driving modes;

[0044] The main clutch can be selectively engaged or disconnected to realize corresponding engine-only driving, motor-only driving, engine and motor hybrid driving, and engine driving and motor generating. The driving and generating integrated hybrid power system has a compact structure and is easy to arrange in a rotary drilling machine. At the same time, it forms a flexible, variable and adaptable power transmission and energy conversion drive assembly scheme, which aims to flexibly switch to four different working modes according to different working condition requirements, to realize maximum utilization of energy and optimal operation of the system, while reducing energy consumption, being green and environmentally friendly, and having wider scene applicability.

[0045] The driving modes that can be realized by the system include 1) engine-only driving, 2) motor-only driving, 3) engine and motor hybrid driving, and 4) engine driving and motor generating, and the working process is as follows:

[0046] 1) Engine-only driving mode: the main clutch 3 is engaged, the engine 1 outputs power alone, and the motor 4 rotates but does not start. This mode is suitable for scenes where environmental protection and noise requirements are not high. At this time, the driving motor rotates without starting, basically without consuming engine power, which can realize fast response and execution of the engine. In this mode, the engine directly drives the hydraulic pump to work, reducing the energy conversion link and improving the system efficiency, which is suitable for high-load or smooth speed performance working scenes.

[0047] 2) Motor alone driving mode: the main clutch 3 is disconnected, the motor 4 outputs power alone, and the engine 1 is in a stop or idle state, which is suitable for an environment with strict environmental protection requirements or low noise requirements, the motor alone is used as a power source of the system, and the previously stored electric energy is used to drive the output hydraulic pump.

[0048] 3) Engine and motor hybrid driving mode: the main clutch 3 is engaged, the engine 1 and the motor 4 jointly output power, which is suitable for a working mode requiring high power output, the power of the engine 1 and the power of the motor 4 can be directly transmitted to the output hydraulic pump to realize fast response and high energy conversion.

[0049] 4) Engine driving and motor generating mode: the main clutch 3 is engaged, the engine 1 outputs power, part of which is used for the motor 4 to generate electricity, and part of which is directly used to drive the output load OUT, and the proportion of the output power of the engine used for driving and generating can be adjusted as required.

[0050] The hybrid power system provided in the embodiment not only improves energy utilization efficiency, but also enhances the flexibility and adaptability of the system, and provides an efficient and environmentally friendly solution for various application scenarios.

[0051] [Second embodiment]

[0052] As Figure 3 The second embodiment provided by the utility model is different from the first embodiment only in that the motor 4 rear end is further connected with an output clutch 5, the output clutch 5 selects a dog clutch, and by disconnecting the output clutch 5, energy loss caused by the motor 4 rotating with the engine in the engine alone driving mode can be avoided.

[0053] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A hybrid powertrain system characterized by: The system comprises: an engine (1), the output shaft of which is connected to a damper (2); the damper (2), the other end of which is connected to a main clutch (3); the main clutch (3), the other end of which is connected to an electric motor (4); the electric motor (4), the output end of which is connected to an output load (OUT), which can be used as a driving motor or a generating motor; the main clutch can be selectively engaged or disengaged to realize corresponding engine-only driving, motor-only driving, engine-motor hybrid driving, and engine driving and motor generating working modes.

2. A hybrid system according to claim 1, characterized in that: The damper (2) is a rubber torsional damper.

3. The hybrid system of claim 1, wherein: The main clutch (3) is a dog clutch.

4. The hybrid system of claim 1, wherein: The electric motor (4) is a three-phase permanent magnet synchronous motor.

5. The hybrid system of claim 1, wherein: The output load (OUT) at least includes an output hydraulic pump.

6. The hybrid system of claim 1, wherein: In the engine-only driving working mode: the main clutch (3) is engaged, the engine (1) outputs power alone, and the electric motor (4) rotates with the engine (1) but does not start.

7. The hybrid system of claim 1, wherein: In the motor-only driving working mode: the main clutch (3) is disengaged, the electric motor (4) outputs power alone, and the engine (1) is in a shutdown or idling state.

8. The hybrid system of claim 1, wherein: In the engine-motor hybrid driving working mode: the main clutch (3) is engaged, and the engine (1) and the electric motor (4) jointly output power.

9. The hybrid system of claim 1, wherein: In the engine driving and motor generating working mode: the main clutch (3) is engaged, the engine (1) outputs power, part of which is used for the electric motor (4) to generate electricity, and part of which directly drives the output load (OUT), and the proportion of the output power of the engine (1) used for driving and generating electricity can be adjusted as needed.

10. The hybrid system of claim 1, wherein: The electric motor (4) is further connected to an output clutch (5) at the rear end, and the output clutch (5) is a dog clutch.

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