CN213239459U - Loading test bed for agricultural machinery complete machine engine - Google Patents

Abstract

A loading test stand for a complete machine engine of agricultural machinery comprises: the device comprises a guide rail, a lifter, an inclined supporting beam, a sliding block, a lifting platform, a loading assembly, a transmission shaft, a base and a connecting beam; the base is fixed on the foundation through pre-buried rag screw, on four guide rails are fixed in the base, on the machine of lifting is fixed in the base, four bearing diagonal beams are connected with four guide rails and base respectively, through tie-beam interconnect between four guide rails, lift platform passes through the slider and is connected with the guide rail, the loading assembly passes through the clamp plate and is connected with lift platform, the transmission shaft is fixed in on the loading assembly. The utility model realizes that the engine on the whole machine does not need to be disassembled from the whole machine when the performance test is carried out, and the power transmission system of the whole machine is included when the engine test is carried out, thereby being capable of simulating the actual use condition of the engine; the dynamometer can realize stepless movement in the up-down direction, the front-back direction and four degrees of freedom; the power test, the speed change test, the load change test under the engine calibration rotating speed and the like of the engine can be completed in sequence.

Description

Loading test bed for agricultural machinery complete machine engine

Technical Field

The utility model belongs to test equipment detection area relates to an agricultural machine complete machine load test platform, especially relates to a load test platform for agricultural machine complete machine engine.

Background

At present, the performance test and inspection are carried out on the whole agricultural machine in China before the whole agricultural machine leaves a factory, the test target is generally to carry out loading test and inspection on a traveling system, a transmission system and the like of the whole agricultural machine, but the engine which is a provider of the power of the whole agricultural machine is rarely carried out on the loading test after being installed on the whole agricultural machine, and the quality of the product of the engine installed on the whole agricultural machine is difficult to accurately judge.

The national intellectual property office of the related Art discloses in 2008 utility model patent application "engine test bench" 10 month 15 days, the patent application number is: 200720116763.8, the filing date of the patent is: day 14, 8/2007, publication No.: CN201133873Y, which is close to the content of the present invention. This rack comprises dynamometer, transmission shaft, engine base and basic platform, and this rack can only carry out the performance test to solitary engine, need pull down the engine and just can test on this test bench when testing again after the engine installation to the complete machine, and it is inconvenient to use, has shortcomings such as test cost height, cycle length, unable measurement complete machine driving system.

Based on the situation, the loading test bed for the whole agricultural machine engine comprises the power transmission system of the whole machine when the engine is subjected to performance test, the actual use condition of the engine can be simulated, and the test bed is not limited by the installation position of the engine. Meanwhile, the test bed is conveniently and quickly connected with the engine, and the automation degree of the test process is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a loading test bench for agricultural machine complete machine engine, this test bench can carry out the performance test to the engine after the engine is installed to the complete machine, and is experimental not restricted by engine mounting position, and the test bench has characteristics such as connection convenience, degree of automation height, measurement accuracy.

The utility model discloses reach above-mentioned purpose by following technical scheme: a loading test stand for a complete machine engine of agricultural machinery comprises: the device comprises a guide rail, a lifter, an inclined supporting beam, a sliding block, a lifting platform, a loading assembly, a transmission shaft, a base and a connecting beam; the base is fixed on the foundation through pre-buried rag screw, on four guide rails pass through the fix with screw and are fixed in the base, on the machine of lifting passes through the fix with screw and is fixed in the base, four oblique supporting beam pass through the screw respectively with four guide rails and base be connected, through tie-beam interconnect between four guide rails, lift platform passes through the slider and is connected with the guide rail, the loading assembly passes through the clamp plate and is connected with lift platform, the transmission shaft passes through the fix with screw and is connected on the loading assembly.

The loading assembly comprises: a dynamometer; a shaft sleeve; a torque sensor; a transition plate; a supporting seat; a dynamometer fixing platform; a lead screw; a nut block; an encoder; the encoder is connected with the dynamometer through the coupler, the dynamometer is fixed on the dynamometer fixing platform through screws, the torque sensor is connected with the dynamometer through the shaft sleeve, the transition plate is fixed on the torque sensor through screws, the torque sensor is fixed on the dynamometer fixing platform through a supporting seat, and the lead screw is connected with the dynamometer fixing platform through the nut block.

The utility model adopts the above technical scheme can reach following beneficial effect after: the performance detection of the engine installed on the whole agricultural machine is realized, and the reliability of the performance of the engine in the whole agricultural machine is ensured; when the engine on the whole machine is subjected to a performance test, the engine does not need to be disassembled from the whole machine, and the engine test comprises a power transmission system of the whole machine, so that the actual use condition of the engine can be simulated; the dynamometer can realize stepless movement in the upper and lower directions, the front and back directions and four degrees of freedom, and completely meets the requirements of various types of agricultural machinery; the test content is wide, and the power test, the maximum power test, the variable speed test, the variable load test under the engine calibration rotating speed and the like of the engine can be completed in sequence; the detection content is wide, and multiple performance parameters of the engine can be acquired simultaneously.

Drawings

FIG. 1 is a schematic view of a mechanical structure assembly of a loading test bed for a complete machine engine of an agricultural machine according to the present invention;

fig. 2 is the loading assembly schematic diagram of the loading test bed for the whole engine of the agricultural machine of the utility model.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. As shown in fig. 1 to 2, a loading test stand for a complete machine engine of an agricultural machine comprises:

the method comprises the following steps: the device comprises a guide rail 1, a lifter 2, an inclined supporting beam 3, a sliding block 4, a lifting platform 5, a loading assembly 6, a transmission shaft 7, a base 8 and a connecting beam 9; base 8 is fixed in on the ground through pre-buried rag screw, four guide rail 1 are on base 8 through the fix with screw, play the guide effect when lift platform 5 goes up and down, lift machine 2 is on base 8 through the fix with screw, be used for lift and decline of lift platform 5, four bearing diagonal beam 3 are connected with four guide rail 1 and base 8 respectively through the screw, be used for strengthening four guide rail 1's stability, through tie-beam 9 interconnect between four guide rail 1, make four guide rail 1 make up into a whole, stable and reliable. Lifting platform 5 passes through slider 4 and is connected with guide rail 1, and lifting platform 5 passes through slider 4 and can slide from top to bottom with guide rail 1, and the stability of removal and the stability when the test bench is experimental have been guaranteed in the existence of slider 4. The loading assembly 6 is connected with the lifting platform 5 through a pressing plate, and the transmission shaft 7 is fixed on the loading assembly 6 through a screw. The position of the transmission shaft 7 can be adjusted to realize the diversification of tested machine types and the quick and convenient connection, the transmission shaft 7 is provided with an elastic body to reduce the influence of the vibration of the engine on the transmission shaft 7, and the service life of the transmission shaft is prolonged.

The loading assembly 6 includes: a dynamometer 10; a shaft sleeve 11; a torque sensor 12; a transition plate 13; a support base 14; a dynamometer fixing platform 15; a lead screw 16; a nut block 17; an encoder 18; the encoder 18 is connected with the dynamometer 10 through a coupler, the encoder 18 is mainly used for measuring the rotating speed of the dynamometer 10 and providing a feedback signal for a measuring system, and the measured rotating speed is the rotating speed of the engine because the dynamometer 10 and the engine are at the same speed. The dynamometer 10 is fixed on a dynamometer fixing platform 15 through screws, the torque sensor 12 is connected with the dynamometer 10 through a shaft sleeve 11, the transition plate 13 is fixed on the torque sensor 12 through screws, the torque sensor 12 is fixed on the dynamometer fixing platform 15 through a supporting seat 14, and the torque sensor 12 is used for measuring real-time torque of an engine during testing. The lead screw 16 is connected with the dynamometer fixing platform 15 through a nut block 17. Stepless movement of the dynamometer 10 in the horizontal position may be achieved using the lead screw 16.

When the test platform is in work, the lifting platform 5 is lowered, the whole machine to be tested is placed on the test platform lifting platform 5, the lifting platform 5 is controlled to ascend to a required height, and the loading assembly 6 is moved on the lifting platform 5 to the position where the transmission shaft 7 is connected with an engine of the whole machine to be tested, so that a loading performance test can be carried out.

The utility model discloses a dynamometer 10 loading, the dependable performance. The transmission shaft 7 is a transmission shaft special for engine test, and the transmission shaft 7 can automatically move in four directions, namely up and down, front and back, so that the connection between the transmission shaft 7 and an engine output shaft is facilitated. The test bed has high automation degree, more test contents and more measurement parameters, and provides reliable test equipment for the loading performance test of the whole engine of the agricultural machine.

Finally, it should be noted that: while the present invention has been described with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. All changes, modifications, equivalents and the like which come within the spirit of the invention are intended to be embraced therein.

Claims (2)

1. A loading test stand for a complete machine engine of agricultural machinery comprises: the device comprises a guide rail (1), a lifting machine (2), an inclined supporting beam (3), a sliding block (4), a lifting platform (5), a loading assembly (6), a transmission shaft (7), a base (8) and a connecting beam (9); the method is characterized in that: base (8) are fixed in on the ground through pre-buried lower margin screw, four guide rails (1) are fixed in on base (8) through the screw, lift machine (2) are fixed in on base (8) through the screw, four oblique supporting beam (3) are connected with four guide rails (1) and base (8) respectively through the screw, through tie-beam (9) interconnect between four guide rails (1), lift platform (5) are connected with guide rail (1) through slider (4), loading assembly (6) are connected with lift platform (5) through the clamp plate, transmission shaft (7) are fixed in on loading assembly (6) through the screw.

2. The loading test bed for the whole agricultural machine engine according to claim 1, characterized in that: the loading assembly (6) comprises: the device comprises a dynamometer (10), a shaft sleeve (11), a torque sensor (12), a transition plate (13), a supporting seat (14), a dynamometer fixing platform (15), a lead screw (16), a nut block (17) and an encoder (18); encoder (18) are connected with dynamometer (10) through the shaft coupling, dynamometer (10) are fixed on dynamometer fixed platform (15) through the fix with screw, torque sensor (12) are connected with dynamometer (10) through axle sleeve (11), cross cab apron (13) and pass through the fix with screw on torque sensor (12), torque sensor (12) are fixed on dynamometer fixed platform (15) through supporting seat (14), lead screw (16) are connected with dynamometer fixed platform (15) through nut block (17).

Images