Performance test bench for engine starting and loading operation

Abstract

The present invention relates to the technical field of performance test bench technology, and discloses a performance test bench for engine start-up and loading operation, comprising four support rods, a fixed rod is arranged between the four support rods, the four support rods are divided into two groups on the left and right, a placement plate is slidably arranged between the two groups of support rods, sliders are fixedly connected to the left and right sides of the placement plate, a second wedge-shaped groove is provided on the adjacent side of the two groups of support rods, the slider is clamped in the second wedge-shaped groove, and a second wedge block is slidably arranged in the second wedge-shaped groove. The present invention can greatly reduce the vibration of the engine during operation, keep the test bench stable, and make the performance test of engine start-up and loading operation more accurate; the clamp block can clamp the engine, and then the upper pressure plate can be lowered through the inclined groove of the fixed block and the sliding of the inclined plate, so that the upper pressure plate presses the engine to prevent the movement of the engine.

Description

Technical Field

[0001] The invention relates to the technical field of performance testing benches, in particular to a performance testing bench for engine starting and loading operation. Background Art

[0002] At present, engine manufacturers have strict factory test procedures for their engines to ensure that the performance indicators and parts of the engine are working properly. The existing test bench support tooling supports the middle and rear ends of the engine. It is difficult to align the engine test bench with the dynamometer during installation, and the alignment takes a long time. The engine vibrates greatly after running and has poor stability. Therefore, there is an urgent need for a test bench for engine starting and loading performance. Summary of the invention

[0003] The object of the present invention is to provide a performance testing bench for engine starting and loading operation to solve the problems raised in the above-mentioned background technology.

[0004] The cam is connected with the second support rod by the spring, and the second support rod is connected with the second support rod by the spring. The cam is provided with a plurality of clamping blocks, and the plurality of clamping blocks pass through the plurality of clamping blocks, and the plurality of clamping blocks are provided with a plurality of clamping blocks, and the plurality of clamping blocks are provided with a plurality of clamping blocks.

[0005] Preferably, there are four fixing rods, and the four fixing rods are respectively fixed between four supporting rods by bolts.

[0006] Preferably, the second spring at the upper end of the second wedge-shaped block contacts the sliding block, and the second spring at the lower end of the second wedge-shaped block contacts the inner wall of the second wedge-shaped groove.

[0007] Preferably, the first springs on the left and right sides of the first wedge-shaped block are fixedly connected to the left and right inner walls of the first wedge-shaped groove respectively.

[0008] Preferably, the widths of the upper and lower ends of the clamping block are greater than the width of the sliding groove, and the clamping block is in an I-shape.

[0009] Preferably, the threads on the left and right sides of the bidirectional lead screw are symmetrically arranged, and the threads on the left and right sides of the bidirectional lead screw are respectively threadedly connected to the two clamping blocks.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] (1) The present invention slides a placing plate between four supporting rods through sliders on both sides of the placing plate. The second spring exerts an elastic force on the placing plate, so that the vibration of the engine can be reduced during operation. Secondly, the first spring at the lower end of the placing plate and the two ends of the inclined rod are respectively hinged with the first wedge block and the second wedge block, so that the vibration of the engine is greatly reduced during operation, the detection bench remains stable, and the performance detection of the engine start-up and loading operation is more accurate.

[0012] (2) The present invention drives the bidirectional lead screw to rotate through a motor, so that the two clamping blocks are close to each other and the engine placed on the placement plate is clamped. Then, the upper pressure plate can be lowered through the inclined groove of the fixed block and the inclined plate sliding, so that the upper pressure plate presses the engine to prevent the engine from moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0014] Figure 2 It is a partial cross-sectional view of the main view of the present invention;

[0015] Figure 3 It is a bottom view structural schematic diagram of the present invention;

[0016] Figure 4 This is a top view of the placement board of the present invention.

[0017] In the figure: 1. support rod; 2. placement plate; 3. clamping block; 4. tilting plate; 5. fixing rod; 6. upper pressure plate; 7. fixing block; 8. motor; 9. slide groove; 10. bidirectional screw; 11. second wedge-shaped groove; 12. inclined rod; 13. inclined groove; 14. first wedge-shaped block; 15. first spring; 16. first wedge-shaped groove; 17. second spring; 18. second wedge-shaped block; 19. baffle; 20. slider. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-4The present invention provides a technical solution: a performance test bench for engine starting and loading operation, comprising four support rods 1, a fixing rod 5 is arranged between the four support rods 1, the number of the fixing rods 5 is four, the four fixing rods 5 are respectively fixedly installed between the four support rods 1 by bolts, the four support rods 1 can be vertically and stably maintained by the four fixing rods 5, the four support rods 1 are divided into two groups on the left and right, a placement plate 2 is slidably arranged between the two groups of support rods 1, the left and right sides of the placement plate 2 are fixedly connected with sliders 20, a second wedge-shaped groove 11 is opened on the adjacent side of the two groups of support rods 1, the slider 20 is clamped in the second wedge-shaped groove 11, a second wedge block 18 is slidably arranged in the second wedge-shaped groove 11, a second spring 17 at the upper end of the second wedge block 18 is connected to the slider 20 The second spring 17 at the lower end of the second wedge block 18 contacts the inner wall of the second wedge groove 11, and the two ends of the upper end of the second wedge block 18 are fixedly connected with the second spring 17. The lower end of the placement plate 2 is provided with a first wedge groove 16, and the first wedge block 14 is slidably provided in the first wedge groove 16. The first springs 15 on the left and right sides of the first wedge block 14 are respectively fixedly connected with the inner walls of the left and right sides of the first wedge groove 16. When the second wedge block 18 is subjected to impact force, the second wedge block 18 is kept stable by the second springs 17 at the upper and lower ends. At the same time, when the first wedge block 14 is subjected to impact force, it is kept stable by the first springs 15 on both sides of the first wedge block 14. The left and right sides of the first wedge block 14 are fixedly connected with the first spring 15, and the lower end of the first wedge block 14 is hingedly connected with The inclined rod 12, the lower end of the inclined rod 12 is hingedly connected to one side of the second wedge block 18, so that the vibration of the engine is greatly reduced during operation, the detection bench remains stable, and the performance detection of the engine start-up and loading operation is more accurate. A slide groove 9 is provided on the upper end of the placement plate 2, and the slide groove 9 passes through the placement plate 2. A clamping block 3 is slidably arranged in the slide groove 9 of the placement plate 2. The width of the upper and lower ends of the clamping block 3 is greater than the width of the slide groove 9. The clamping block 3 is I-shaped, and the clamping block 3 passes through the slide groove 9 of the placement plate 2. At the same time, the clamping block 3 is fitted with the placement plate 2 so that the clamping block 3 can move under the rotation of the bidirectional lead screw 10. There are two clamping blocks 3, and the two clamping blocks 3 pass through the slide groove 9. The upper end of the clamping block 3 is fixedly installed with an inclined plate 4, and the upper end of the inclined plate 4 is provided with an upper pressure plate 6. The fixed block 7 passes through the upper pressure plate 6, and the fixed block 7 is fixedly connected to the upper pressure plate 6. An inclined groove 13 is opened on the upper end of the fixed block 7, and the inclined groove 13 passes through the lower end surface of the fixed block 7. The inclined plate 4 is inserted in the inclined groove 13 of the fixed block 7, and the inclined plate 4 is slidably connected to the slide groove 9. Baffles 19 are fixedly installed on both sides of the lower end of the placement plate 2. A motor 8 is fixedly installed on one side of the baffle 19 on the left side of the placement plate 2. The output end of the motor 8 passes through the baffle 19 on the left side, and the output end of the motor 8 is rotatably connected to the baffle 19 on the left side. A bidirectional screw 10 is provided between the two baffles 19. The threads on the left and right sides of the bidirectional screw 10 are symmetrically arranged, and the threads on the left and right sides of the bidirectional screw 10 are respectively threadedly connected to the two clamping blocks 3. The bidirectional screw 10 passes through the two clamping blocks 3.The bidirectional lead screw 10 is threadedly connected to the two clamping blocks 3, one end of the bidirectional lead screw 10 is fixedly connected to the output end of the motor 8, and the other end of the bidirectional lead screw 10 is rotatably connected to the baffle 19 through the bearing seat. The motor 8 drives the bidirectional lead screw 10 to rotate, so that the two clamping blocks 3 are close to each other, and the engine placed on the placement plate 2 is clamped. Then, the upper pressure plate 6 can be lowered through the inclined groove 13 of the fixed block 7 and the sliding of the inclined plate 4, so that the upper pressure plate 6 can press the engine to prevent the engine from moving.

[0020] When in use, first place the engine on the placement table, then rotate the motor 8 to drive the bidirectional screw 10 to rotate, then make the two clamping blocks 3 move relative to each other under the rotation of the bidirectional screw 10 to clamp the engine, then the inclined plates 4 at the upper ends of the two clamping blocks 3 can slide in the inclined grooves 13 of the fixing blocks 7, so that the two sides of the upper pressure plate 6 are squeezed, the upper pressure plate 6 is lowered, and the engine is fixed, and finally, during the operation of the engine, the placement plate 2 has a supporting force on the placement plate 2 through the elastic force of the second spring 17, and at the same time, the first wedge block 14 in the first wedge groove 16 at the lower end of the placement plate 2 and the second wedge block 18 in the second wedge groove 11 are both hinged to the two ends of the inclined rod 12, and the impact force generated by the engine is reduced by the two first springs 15 in the first wedge groove 16 and the two second springs 17 in the second wedge groove 11, so that the engine remains stable and the performance detection is accurate.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A performance test bench for engine starting and loading operation, comprising four support rods (1), Features: A fixing rod (5) is arranged between the four support rods (1), and the four support rods (1) are divided into two groups on the left and right. A placement plate (2) is slidably arranged between the two groups of support rods (1), and the left and right sides of the placement plate (2) are fixedly connected with sliders (20). A second wedge-shaped groove (11) is provided on the adjacent sides of the two groups of support rods (1), and the slider (20) is clamped in the second wedge-shaped groove (11). A second wedge block (18) is slidably arranged in the second wedge groove (11), and the upper ends of the second wedge block (18) are fixedly connected with second springs (17). The lower end of the placement plate (2) is fixedly connected with a second spring (17). A first wedge-shaped groove (16) is provided, a first wedge-shaped block (14) is slidably provided in the first wedge-shaped groove (16), the first wedge-shaped block (14) is fixedly connected to first springs (15) on both sides, the lower end of the first wedge-shaped block (14) is hingedly connected to an inclined rod (12), the lower end of the inclined rod (12) is hingedly connected to one side of the second wedge-shaped block (18), the upper end of the placement plate (2) is provided with a slide groove (9), the slide groove (9) passes through the placement plate (2), a clamping block (3) is slidably provided in the slide groove (9) of the placement plate (2), the number of the clamping blocks (3) is two, and the two clamping blocks (3) pass through The upper end of the clamping block (3) is fixedly installed with an inclined plate (4), the upper end of the inclined plate (4) is provided with an upper pressing plate (6), the upper end of the upper pressing plate (6) is provided with a fixed block (7), the fixed block (7) passes through the upper pressing plate (6), and the fixed block (7) is fixedly connected to the upper pressing plate (6), the upper end of the fixed block (7) is provided with an inclined groove (13), and the inclined groove (13) passes through the lower end surface of the fixed block (7), the inclined plate (4) is inserted into the inclined groove (13) of the fixed block (7), and the inclined plate (4) is slidably connected to the sliding groove (9), and the lower end of the placing plate (2) is fixedly installed on both sides. A baffle (19) is provided, and a motor (8) is fixedly installed on one side of the baffle (19) on the left side of the placement plate (2), and the output end of the motor (8) passes through the baffle (19) on the left side, and the output end of the motor (8) is rotatably connected to the baffle (19) on the left side. A bidirectional lead screw (10) is provided between the two baffles (19), and the bidirectional lead screw (10) passes through the two clamping blocks (3), and the bidirectional lead screw (10) is threadedly connected to the two clamping blocks (3), one end of the bidirectional lead screw (10) is fixedly connected to the output end of the motor (8), and the other end of the bidirectional lead screw (10) is rotatably connected to the baffle (19) through a bearing seat.

2. The engine start-up and loading performance test bench according to claim 1, Features: There are four fixing rods (5), and the four fixing rods (5) are respectively fixedly installed between the four support rods (1) by means of bolts.

3. The engine start-up and loading performance test bench according to claim 1, Features: The second spring (17) at the upper end of the second wedge block (18) contacts the slider (20), and the second spring (17) at the lower end of the second wedge block (18) contacts the inner wall of the second wedge groove (11).

4. The engine start-up and loading performance test bench according to claim 1, Features: The first springs (15) on the left and right sides of the first wedge-shaped block (14) are respectively fixedly connected to the left and right inner walls of the first wedge-shaped groove (16).

5. The engine start-up and loading performance test bench according to claim 1, Features: The widths of the upper and lower ends of the clamping block (3) are both greater than the width of the sliding groove (9), and the clamping block (3) is in an I-shape.

6. The engine start-up and loading performance test bench according to claim 1, Features: The threads on the left and right sides of the bidirectional lead screw (10) are symmetrically arranged, and the threads on the left and right sides of the bidirectional lead screw (10) are respectively threadedly connected to the two clamping blocks (3).

Images