CN114635791A

CN114635791A - Hinged constraint piston engine

Info

Publication number: CN114635791A
Application number: CN202210225653.4A
Authority: CN
Inventors: 鲁力群; 孙萌; 张铁柱; 赵静; 柏鑫; 宋雅婷; 杨彬彬
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-06-17

Abstract

The invention provides a hinged constraint piston type hydraulic engine capable of simultaneously outputting mechanical energy and hydraulic energy, which mainly comprises a combustion chamber, a piston, plungers, plunger cylinders, ball pins, a crank, a crankshaft, a flywheel and other structures, wherein four plunger cylinders hinged by the ball pins are connected between a connecting rod and the crank, the ball pins are respectively fixed on a vertical connecting rod and a middle fixed support, a cylinder body is connected outside the fixed support, the piston reciprocates to drive the upper and lower groups of plungers to respectively compress and extend, oil absorption and oil pressing are completed, and hydraulic energy is output in an external circulation mode; meanwhile, the force generated by the motion of the piston is transmitted to the crank, and is transmitted to the crankshaft by the crank and converted into torque to be output outwards, so that the function of simultaneously outputting mechanical energy and hydraulic energy outwards by the engine is realized.

Description

Hinged constraint piston type engine

Technical Field

The invention provides a hinged constraint piston type hydraulic engine, and belongs to the technical field of composite energy power.

Background

The traditional hydraulic transmission system of the walking machinery mostly adopts an internal combustion engine to drive a hydraulic pump (a plunger pump) to provide power under non-electric drive, the mode is technically mature and reliable in work, but has the defects of multiple energy conversion and transmission links, low efficiency, high matching difficulty of optimal working characteristics, complex system structure, high manufacturing cost and the like.

Disclosure of Invention

The technical problems solved by the invention are as follows: the piston engine used by the automobile in the current market can only output mechanical energy singly, and the utilization efficiency of the energy is too low.

The invention aims to provide an articulated constraint piston engine which can output mechanical energy singly and hydraulic energy simultaneously.

The technical problem solved by the invention can be realized by the following technical scheme.

The invention relates to a hinged constraint piston type engine mechanism, which comprises a combustion chamber, a piston, a plunger cylinder, a ball pin, a crank, a crankshaft and a flywheel, wherein the traditional mechanical energy output mode is that a connecting rod transmits the reciprocating force of the piston to the crank, and then transmits the reciprocating force to the crankshaft and converts the reciprocating force into torque for external output.

The invention outputs hydraulic energy in a working mode, namely when the piston drives the vertical connecting rod to do reciprocating motion, the plunger connected with the ball head pin compresses or extends along with the motion, so that oil absorption and oil pressing are completed, and hydraulic energy is output in an external circulation mode.

Compared with the prior art, the invention has the following advantages:

(1) the hinged constraint piston type hydraulic engine does not need to use an internal combustion engine to drive a plunger pump to output hydraulic energy, and the reciprocating motion of a piston can drive a plunger to output hydraulic energy;

(2) the hinged constraint piston type hydraulic engine simplifies the structure of the output hydraulic energy of the traditional internal combustion engine-plunger pump, and improves the energy utilization efficiency.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an articulated constraint piston engine; FIG. 2 is an oil replenishment arrangement for an articulated restrained piston engine; fig. 3 is a flow diagram of the energy conversion of an articulated constrained piston engine.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following description is further combined with the specific drawings for further explanation.

Referring to fig. 1, when the mechanism realizes mechanical energy output, the piston 1 can generate reciprocating motion when doing work, the force generated by the reciprocating motion can be transmitted to the crank, then transmitted to the crankshaft 6 by the crank, and finally converted into torque by the crankshaft 7 and transmitted to the flywheel 8 connected with the crank, so as to complete mechanical energy output.

Referring to fig. 1, when the mechanism realizes the pressure energy output, the piston 1 can drive the plunger 3 connected with the ball pin 5 to compress or extend in the plunger cylinder when reciprocating, when the piston moves downwards, the plungers connected with the ball pin in the two plunger cylinders above can compress, the hydraulic oil in the plungers can be pressed out from the port P under the action of pressure, meanwhile, the plungers connected with the ball pin in the two plunger cylinders below can extend, and the external hydraulic oil can press the oil in from the port T under the action of pressure. On the contrary, when the piston moves upwards, the plungers in the two plunger cylinders at the upper part can extend, hydraulic oil is pressed in from the T port, the two plungers at the lower part can compress, the hydraulic oil is pressed out from the P port, and the pressure energy is output outwards in a circulating mode.

Referring to fig. 2, when the oil supplementing device works, a rated pressure value is usually set, when the external pressure is higher than the rated pressure value, the pilot sequence valve 1 is opened, the plunger pump 7 can press oil to flow into the pressure storage cavity 2, after a certain value is reached, the unloading valve 3 below the plunger pump can be opened, the hydraulic oil flows into the oil cylinder 4, when the external pressure value is lower, the direct-current two-position two-way electromagnetic directional valve 5 is communicated and moves to the right, the hydraulic oil in the pressure storage cavity can be supplied to the outside, and the two oil paths are provided with the one-way valve 6 to prevent the hydraulic oil from flowing backwards.

Referring to fig. 3, when the mechanism works, various energies participate in conversion, and when the piston is used for manufacturing by utilizing chemical energy in fuel, the chemical energy is converted into mechanical energy under the influence of friction and temperature and then sequentially transmitted to the connecting rod and the vertical connecting rod, and then the mechanical energy is converted into hydraulic energy through the plunger and then is output, and on the one hand, the mechanical energy is output after being converted into the mechanical energy through the crank and the crankshaft.

The foregoing has described the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention has been described in detail herein for purposes of illustration only and is not to be construed as limited to the embodiments disclosed herein. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an articulated restraint piston engine, includes structures such as combustion chamber, piston, plunger cylinder, bulb round pin, crank, bent axle, flywheel, the plunger passes through the bulb round pin to be fixed on vertical connecting rod, and the other end of plunger cylinder utilizes bulb round pin connection on the fixed bolster, and the external cylinder body of fixed bolster, the reciprocating motion of piston drive the plunger extension on the one hand and compress output hydraulic energy, transmits for bent axle output mechanical energy on the one hand.

2. An articulated constrained piston engine according to claim 1, the articulated structure of which is characterized in that: the axisymmetric revolving body ball stud consisting of the rod part and the ball head is convenient to mount, and the spherical hinge can eliminate the clearance generated by the surface abrasion of the hinge and can also meet the complex relative motion of two hinge parts.

3. An articulated constrained piston engine according to claim 1, of the type operating as: when the piston drives vertical connecting rod downstream, the plunger in two plunger jars on the higher authority of bulb pin junction also can compress downwards thereupon, hydraulic oil in the jar is extruded from the P mouth, the plunger in two plunger jars below can extend simultaneously, hydraulic oil will be followed T mouth and impressed in two plunger jars below, on the contrary, the piston upward movement, the operating condition of upper and lower two sets of plunger jars is opposite, so external cyclic output hydraulic energy, and the benefit oil installation that is located P mouth top plays the steady voltage effect when the piston moves to lower dead center, the power that the piston transmitted the bent axle turns into the external mechanical energy of output of moment.