CN209247358U - A kind of engine testing system - Google Patents

Abstract

The utility model relates to a kind of engine testing systems, including system ontology, system ontology includes workbench, motor positioned at workbench side, with the first rotating wheel of the output axis connection of motor, the second rotating wheel above the first rotating wheel, one end is entangled in the chain that the other end is entangled on the second rotating wheel on the first rotating wheel and is mounted on chain for fixing the fixed mechanism of start rope handle, engine is placed on the table, the handle of start rope is fixed on fixed mechanism on engine, electric motor starting, chain is driven to move one on the other, so just fixed mechanism is driven to move up and down, to generate the movement that start rope pulls one on the other, instead of the driving method of the cylinder in original technology in such a way that motor cooperates chain, without continuously supplying, machine loss would not be also generated in this way, and motor can The accurately travel speed that control start rope pulls, precision is high, can accurately reflect the practical endurance life of start rope.

Description

A kind of engine testing system

Technical field

The utility model relates to Engine Block Test technical fields, more particularly, to a kind of engine testing system.

Background technique

It is currently used for the petrol engines such as grass trimmer, agricultural machinery on startup, is to draw petrol engine to pull using outer manually Starting knob on disc type starter, starts work (being commonly called as " burning ") to realize, so the engine produced on assembly line It requires that starting is drawn to do tensile test one by one before factory, whether the engine after test assembling is normal.Engine does tensile test When, generally require starter endurance life not less than 5000-10000 times, if manually drawing starter, labor intensity Greatly.Initially, factory is tested using swing-bar mechanism, i.e. engine start rope is tied up on swing rod, and swing rod rotation drives start rope It pulls out and puts back to.There are own shortcomings for this mode: 1, not can determine that the length that start rope pulls out；2, swing rod cannot be guaranteed to start The direction that rope pulls out；3, the power that swing rod pulls out is too big, not can accurately reflect the practical endurance life of start rope.In order to make up these Defect, factory use cylinder force to test to draw start rope immediately, although compensating for swing rod institute by the way of cylinder starting Existing some disadvantages, but this scheme or existing defects: 1, cylinder needs continuous gas supply, big to the loss of machine；2, By the way of cylinder starting, the travel speed of start rope is difficult to control, and precision is low, can not accurately reflect the reality of start rope Border endurance life.

Summary of the invention

The technical problem to be solved by the utility model is to provide one kind can replace manpower, without continuous gas supply, will not It generates loss, travel speed and engine testing system with high accuracy can be controlled.

The utility model is the technical scheme adopted is that a kind of engine testing system, including system ontology, system ontology Including workbench, positioned at the motor of workbench side, with the first rotating wheel of the output axis connection of motor, positioned at the first rotating wheel Second rotating wheel of top, one end are entangled in the chain that the other end is entangled on the second rotating wheel on the first rotating wheel and are mounted on chain For fixing the fixed mechanism of start rope handle on item.

The beneficial effects of the utility model are: engine testing system using the above structure, is placed on work for engine To make on platform, the handle of start rope is fixed on fixed mechanism on engine, electric motor starting, and drive chain to move one on the other, by It is fixed on chain in fixed mechanism, then just fixed mechanism is driven to move up and down, is pulled one on the other to generate start rope Movement, instead of the driving method of the cylinder in original technology in such a way that motor cooperates chain, without continuous gas supply, this Sample would not also generate machine loss, and motor can accurately control the travel speed of start rope pulling, and precision is high, can Accurately reflect the practical endurance life of start rope, and this kind of test macro is tested without manpower, saves manpower.

As preferential, fixed mechanism includes the positioning table being fixedly connected with chain, fixes on positioning table and with chain The fixed block of connection, the through-hole on fixed block and one end are connected to the channel that the other end is in communication with the outside with through-hole.Using The structure, start rope are entered in through-hole and through through-hole by channel, then ride over the handle on start rope on fixed block, this One end of start rope is just fixed on fixed mechanism by sample, and structure is simple, easy to operate.

As preferential, system ontology further includes cabinet and the cover cabinet positioned at cabinet upper surface side, and workbench is located at machine The upper surface other side of cabinet, motor are located on the bottom surface inside cover cabinet, and using the structure, system ontology is used to the form of cabinet body It designs, convenient for being placed in factory floor, and motor-driven noise can be reduced and generated.

As preferential, cover cabinet includes bracket on cover cabinet, the fixed plate being fixed on bracket, is arranged in fixed plate for the The location hole that two rotating wheels pass through and the fixing axle across the second rotating wheel, the both ends of the fixing axle ride over location hole respectively Two sides the second rotating wheel is fixed on using the structure by the top of cover cabinet, motor is located at cover bottom of cabinet portion, passes through motor driven Chain is driven to move round the first rotating wheel and the second rotating wheel, structure is simple, and rotation precision is high.

As preferential, system ontology further includes the placement mechanism placed on workbench for engine, placement mechanism packet Pedestal, the mounting table near pedestal and the press block above mounting table placed for engine are included, using the knot Structure puts engine bottom on the base, and the head of engine is placed on mounting table and is pressed against by press block, in this way can be with Engine is fixed on the table, and when carrying out endurance test, the phenomenon that engine will not generate shaking generation ensure that survey The firm stability of test system.

As preferential, system ontology further includes that lid closes the top cover on bracket, using the structure, can prevent dust and Ambiguous barriers enter in cover cabinet, influence the working efficiency of motor.

Detailed description of the invention

Fig. 1 is a kind of left side view of engine testing system of the utility model.

Fig. 2 is a kind of right side view of engine testing system of the utility model.

Fig. 3 is the enlarged drawing in Fig. 2 at A.

Fig. 4 is a kind of overall schematic of engine testing system of the utility model.

Fig. 5 is the structure chart of engine testing system when being placed with engine in the utility model.

It is as shown in the figure: 1, workbench；2, motor；3, the first rotating wheel；4, the second rotating wheel；5, chain；6, start rope handle Hand；7, fixed mechanism；8, positioning table；9, fixed block；10, through-hole；11, channel；12, cabinet；13, cover cabinet；14, bracket；15, solid Fixed board；16, location hole；17, fixing axle；18, engine；19, pedestal；20, mounting table；21, press block；22, top cover.

Specific embodiment

Utility model is further described referring to the drawings and in conjunction with specific embodiment, to enable those skilled in the art Refer to the instruction text can be implemented accordingly, and scope of protection of the utility model is not limited to the specific embodiment.

The utility model relates to a kind of engine testing systems, as shown in Figure 1, including system ontology, system ontology includes Workbench 1 is rotated positioned at the motor 2 of 1 side of workbench, with the first rotating wheel 3 of the output axis connection of motor 2, positioned at first Second rotating wheel 4 of 3 top of wheel, one end be entangled in chain 5 that the other end on the first rotating wheel 3 is entangled on the second rotating wheel 4 and It is mounted on chain 5 for fixing the fixed mechanism 7 of start rope handle 6.

As shown in figure 3, fixed mechanism 7 includes the positioning table 8 being fixedly connected with chain 5, is located on positioning table 8 and and chain 5 fixed block 9, the through-hole 10 on fixed block 9 and one end being fixedly connected are connected to the other end with through-hole 10 and are in communication with the outside Channel 11.

As depicted in figs. 1 and 2, system ontology further includes cabinet 12 and the cover cabinet 13 positioned at 12 upper surface side of cabinet, Workbench 1 is located at the upper surface other side of cabinet 12, and motor 2 is located on the bottom surface inside cover cabinet 13.

As shown in Fig. 1 Fig. 2, cover cabinet 13 includes the bracket 14 on cover cabinet 13, fixed fixed plate 15 on the support 14, setting The location hole 16 for supplying the second rotating wheel 4 to pass through in fixed plate 15 and the fixing axle 17 across the second rotating wheel 4, the fixation The both ends of axis 17 ride over the two sides of location hole 16 respectively, and the second rotating wheel 4 is fixed on to the top of cover cabinet 13, and motor 2 is located at cover 13 bottom of cabinet is driven by motor 2 and chain 5 is driven to move round the first rotating wheel 3 and the second rotating wheel 4, and structure is simple, rotation Precision is high.

As shown in Figure 1, system ontology further includes the placement mechanism placed on workbench 1 for engine 18, machine is placed Structure includes pedestal 19, the mounting table 20 near pedestal 19 and the supporting above mounting table 20 placed for engine 18 Briquetting 21.

As shown in figure 4, system ontology further includes the top cover 22 of lid conjunction on the support 14, dust and unknown barrier can be prevented Hinder object to enter in cover cabinet 13, influences the working efficiency of motor.

Illustrate for engine to be placed in schematic diagram when carrying out durability experiment in system in Fig. 5, in Fig. 5, by engine 18 bottoms are placed on pedestal 19, and the head of engine 18 is placed on mounting table 20 and is pressed against by press block 21, in this way can be with Engine 18 is fixed on workbench 1, when carrying out endurance test, the phenomenon that engine 18 will not generate shaking generation is protected The firm stability of test macro is demonstrate,proved.The start rope of engine 18 is entered in through-hole 10 by channel 11 and runs through through-hole 10, start rope handle 6 just rides on fixed block 9, and thus one end of start rope is fixed on fixed mechanism 7, structure letter It is single, it is easy to operate.When motor 2 rotates forward, the output shaft rotation of motor 2 drives the rotation of the first rotating wheel 3, and the movement of chain 5 drives Fixed mechanism 7 moves upward, and the pulling start rope of fixed mechanism 7 moves upward to the position of setting；Motor 2 invert, motor 2 it is defeated Shaft rotation drives the reversion of the first rotating wheel 3, and the movement of chain 5 drives fixed mechanism 7 to move downward, and fixed mechanism 7 pulls starting Rope is moved downwardly to the position of setting.The starting of motor 2 drives that chain 5 is clockwise, alternating movement counterclockwise, due to fixed mechanism 7 It is fixed on chain 5, then just fixed mechanism 7 is driven to move up and down, to generate the movement that start rope pulls one on the other, adopts Cooperate the mode of chain instead of the driving method of the cylinder in original technology with motor 2, without continuous gas supply, so also just not Machine loss can be generated, and motor 2 can accurately control the travel speed of start rope pulling, precision is high, can be accurately Reflect the practical endurance life of start rope.

Claims (6)

1. a kind of engine testing system, including system ontology, it is characterised in that: system ontology includes workbench (1), is located at work Make the first rotating wheel (3) of the motor (2) of platform (1) side and the output axis connection of motor (2), be located on the first rotating wheel (3) Side the second rotating wheel (4), one end be entangled in the chain (5) that the other end on the first rotating wheel (3) is entangled on the second rotating wheel (4) with And it is mounted on chain (5) for fixing the fixed mechanism (7) of start rope handle (6).

2. a kind of engine testing system according to claim 1, it is characterised in that: fixed mechanism (7) includes and chain (5) positioning table (8) that is fixedly connected is located at the fixed block (9) being fixedly connected on positioning table (8) and with chain (5), is located at and fixes Through-hole (10) and one end on block (9) are connected to the channel (11) that the other end is in communication with the outside with through-hole (10).

3. a kind of engine testing system according to claim 1, it is characterised in that: system ontology further includes cabinet (12) And it is located at the cover cabinet (13) of cabinet (12) upper surface side, workbench (1) is located at the upper surface other side of cabinet (12), motor (2) it is located on cover cabinet (13) internal bottom surface.

4. a kind of engine testing system according to claim 3, it is characterised in that: cover cabinet (13) includes on cover cabinet (13) Bracket (14), be fixed on bracket (14) fixed plate (15), be arranged on fixed plate (15) and pass through for the second rotating wheel (4) Location hole (16) and pass through the fixing axle (17) of the second rotating wheel (4), it is fixed that the both ends of the fixing axle (17) ride over respectively The two sides in position hole (16).

5. a kind of engine testing system according to claim 1, it is characterised in that: system ontology further includes being located at work The placement mechanism placed on platform (1) for engine (18), placement mechanism include the pedestal (19) placed for engine (18), are located at The mounting table (20) of pedestal (19) nearby and the press block (21) above mounting table (20).

6. a kind of engine testing system according to claim 4, it is characterised in that: system ontology further includes that lid conjunction is being propped up Top cover (22) on frame (14).