CN218062477U

CN218062477U - Servo-actuated rotating shaft type composite linkage accelerator control device of crane

Info

Publication number: CN218062477U
Application number: CN202222813586.6U
Authority: CN
Inventors: 吴文通; 刘明; 陈天阳; 徐林; 查心宇; 余冰冰
Original assignee: Jiangsu Hongchang Tianma Logistics Equipment Co ltd
Current assignee: Jiangsu Hongchang Tianma Logistics Equipment Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2022-12-16
Anticipated expiration: 2032-10-25

Abstract

A follow-up rotating shaft type composite linkage accelerator control device for a crane relates to engineering machinery. The method comprises the following steps: the magnetic pin shaft is hinged on the single-chip valve; the bottom of the valve rod is hinged with the end part of the main valve core of the single chip valve, the middle part of the valve rod is fixedly connected with the magnetic pin shaft, the top of the valve rod extends out of the single chip valve, and the magnetic pin shaft is driven to rotate and is pulled to horizontally move by pushing or pulling the valve rod forwards; and the induction chip is fixedly arranged on the side part of the magnetic pin shaft, and the magnetic field flux is changed through the rotation of the magnetic pin shaft. The utility model discloses give chassis engine with composite signal transmission after handling each action signal synthesis, the engine gives further response according to received signal to accomplish the purpose of control throttle.

Description

Servo-actuated rotating shaft type composite linkage accelerator control device of crane

Technical Field

The utility model relates to an engineering machine tool especially relates to compound linkage throttle control device of hoist follow-up pivot formula.

Background

The lorry-mounted crane is equipment which is arranged on an automobile chassis and realizes lifting and hoisting of goods through a hydraulic lifting and telescopic system, has the advantages of good maneuverability, rapid transfer and integration of lifting and transporting functions, and is widely applied to lifting, loading and transporting working conditions such as equipment transportation, emergency rescue, municipal construction and the like.

In the use process of the existing automobile crane adopting the electric control proportional multi-way valve and the load sensitive pump system, in order to obtain better fuel economy of the engine, the inclination angle of a handle and the inclination angle of an accelerator need to be matched by experience, the operation difficulty of a driver is high, and the engine is difficult to work under the working condition of optimal fuel economy.

Aiming at the problems, part of enterprises use the operation of a handle and an accelerator and a power matching algorithm to ensure that the engine always works under the working condition with the best fuel economy, thereby avoiding the working condition that the engine works under a low-speed large load or a high-speed small load. But the design structure between the handle and the valve core is complex, the manufacturing cost is high, the failure rate is also high, and the maintenance and overhaul cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to above problem, provide a compact structure, with low costs, the compound linkage throttle control device of easy operation efficient hoist follow-up pivot formula.

The technical scheme of the utility model is that: compound linkage throttle controlling means of hoist follow-up pivot formula includes:

the magnetic pin shaft is hinged to the single-piece valve;

the bottom of the valve rod is hinged with the end part of the main valve core of the single chip valve, the middle part of the valve rod is fixedly connected with the magnetic pin shaft, the top of the valve rod extends out of the single chip valve, and the magnetic pin shaft is driven to rotate and is pulled to horizontally move by pushing or pulling the valve rod forwards; and

the induction chip is fixedly arranged on the side part of the magnetic pin shaft, and the magnetic field flux is changed through the rotation of the magnetic pin shaft.

Specifically, the magnetic pin shaft comprises a shaft rod and a magnet fixedly arranged at the end part of the shaft rod.

Specifically, the magnet is of a circular structure.

The four single-chip valves are used for controlling the lifting of the arm support of the crane, the stretching of the arm support, the left-right rotation of the crane and the lifting of the lifting hook.

Specifically, the four single-piece valves form a multi-way valve.

Specifically, the model of the multi-way valve is as follows: DCV95.

Specifically, the model of the induction chip is XR-WX-XY.

The utility model comprises a magnetic pin shaft, a valve rod and an induction chip; the bottom of the valve rod is hinged with the end part of the main valve core of the single-chip valve, the middle part of the valve rod is fixedly connected with the magnetic pin shaft, the top part of the valve rod extends out of the single-chip valve, and the magnetic pin shaft is driven to rotate and pull the main valve core to move horizontally by pushing or pulling the valve rod forwards; the induction chip is fixedly arranged on the side part of the magnetic pin shaft. The rotating angle of the valve rod is controlled, a rotating signal is transmitted to an ECU of a chassis engine through an induction chip fixed at the end of the magnetic pin, the signal is processed through an internal program, a composite signal is transmitted to the chassis engine after all action signals are comprehensively processed, and the engine gives further response according to the received signal, so that the purpose of controlling the accelerator is fulfilled.

Drawings

Figure 1 is a schematic perspective view of a single-piece valve,

figure 2 is a front view of a single-piece valve,

FIG. 3 is a schematic view of the structure in the direction A in FIG. 2

FIG. 4 is a perspective view of the multi-way valve

FIG. 5 is a schematic perspective view of a valve stem;

in the figure, 100 is a single chip valve, 110 is a main valve core, 200 is a valve rod, 300 is a magnetic pin shaft, and 400 is an induction chip.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model is shown in figures 1-5; compound linkage throttle controlling means of hoist follow-up pivot formula includes:

the magnetic pin shaft is hinged to the single-piece valve;

the bottom of the valve rod is hinged with the end part of the main valve core of the single-chip valve, the middle part of the valve rod is fixedly connected with the magnetic pin shaft, the top of the valve rod extends out of the single-chip valve, and the valve rod is pushed forwards or pulled backwards to drive the magnetic pin shaft to rotate and pull the main valve core to move horizontally; and

the induction chip is fixedly arranged on the side part of the magnetic pin shaft, the magnetic field flux is changed through the rotation of the magnetic pin shaft, a voltage signal is generated through the change of the magnetic field flux, the induction chip generates 0.5-4.5V voltage and transmits the voltage to the controller connected with the induction chip, and therefore the accelerator is controlled through the controller.

The control method of the scheme comprises the following steps:

1. firstly, the distance L1 of the main valve core moving transversely and the valve core opening Q form a corresponding relation through valve body parameter design, namely: q = L1 × K1 (K1 is a valve element opening amount corresponding to a valve element horizontal movement distance, and is generally an actual test value), and then a relationship between the distance L1 of the main valve element moving in the lateral direction and the angle amount α of the valve rod rotation is converted: l1= alpha x K2 (K2 is related to the distance between the fixed hinge point and the movable hinge point of the valve rod), and the quantized relation of Q = alpha x K1 x K2 can be obtained through a quantized relational expression, so that the conversion of the relation between the rotation angle value of the operating handle and the opening size of the hydraulic valve core is solved.

2. The rotation angle signal of the control valve rod is transmitted to an ECU of a chassis engine through an induction chip (a Hall sensor is adopted in the scheme) fixed at the end of a magnetic pin shaft, the rotation signal is processed, after all action signals are comprehensively processed, a composite signal is transmitted to the chassis engine, and the engine gives further response according to the received coincidence signal. Therefore, the purpose of controlling the accelerator through the opening size of the main valve core is achieved.

3. Calculating the rotating speed n of the required engine through a control program according to the numerical value of the flow Q = alpha x K1 x K2 required by the crane hydraulic system in the first step and the fixed value discharge V of the corresponding hydraulic pump; i.e. n = Q/V × η (η is the volumetric efficiency of the pump). According to the calculation, the real-time output of the engine can be matched with the real-time requirement of a crane hydraulic system, and the purposes of saving energy and improving efficiency are achieved.

Further defined, the magnetic pin comprises a shaft and a magnet fixedly disposed at an end of the shaft.

The magnet is of a circular structure.

And four single-chip valves are further arranged, and the lifting of the arm support of the crane, the stretching of the arm support, the left-right rotation of the crane and the lifting of the lifting hook are controlled through the corresponding single-chip valves.

The four single valves form a multi-way valve.

The model of the multi-way valve is as follows: DCV95 series

Further, the model of the induction chip is XR-WX-XY.

The general working flow of the scheme is as follows:

1. manually operating one or more valve stems in the multiple-way valve;

2.1, the rotation of the magnetic pin shaft is realized through the rotation of the valve rod, so that the magnetic field flux of the induction chip is changed, and the induction chip generates 0.5-4.5V voltage and transmits the voltage to a controller connected with the induction chip in the scheme; the internal controller algorithm can output a voltage signal to control the rotating speed of the engine so as to respond to the power requirement of the hydraulic system.

The disclosure of the present application also includes the following points:

(1) The drawings of the embodiments disclosed herein only relate to the structures related to the embodiments disclosed herein, and other structures can refer to general designs;

(2) The embodiments and features of the embodiments disclosed herein can be combined with each other to arrive at new embodiments without conflict;

the above embodiments are only embodiments disclosed in the present disclosure, but the scope of the disclosure is not limited thereto, and the scope of the disclosure should be determined by the scope of the claims.

Claims

1. Compound linkage throttle controlling means of hoist follow-up pivot formula, its characterized in that includes:

the magnetic pin shaft is hinged to the single-piece valve;

2. The crane follow-up rotating shaft type composite linkage throttle control device according to claim 1, wherein a positioning groove is formed at the end part of the magnetic pin shaft;

and magnets which are matched and fixedly connected are arranged in the positioning grooves.

3. The crane follow-up rotating shaft type composite linkage throttle control device according to claim 2, characterized in that the magnet is of a circular structure.

4. The crane follow-up rotating shaft type compound linkage accelerator control device as claimed in claim 1, wherein four single-chip valves are provided, and the lifting of the boom of the crane, the extension and contraction of the boom, the left and right rotation of the crane and the lifting of the hook are controlled through the corresponding single-chip valves.

5. The compound linkage throttle control device of the follow-up rotating shaft of the crane as claimed in claim 4, wherein four single valves constitute a multi-way valve.

6. The crane follow-up rotating shaft type composite linkage throttle control device as claimed in claim 5, wherein the model of the multi-way valve is DCV95.

7. The crane follow-up rotating shaft type composite linkage throttle control device as claimed in claim 1, wherein the model of the sensing chip is XR-WX-XY.