Upper and lower rack device for diesel engine test vehicle

Abstract

The utility model relates to the technical field of diesel engine test run, in particular to an upper and lower rack device for a diesel engine test run, which can effectively improve the test run efficiency and simplify the operation, and comprises a horizontal transport vehicle arranged on a ground transport track, the horizontal conveying vehicle comprises a bottom moving vehicle body and an upper supporting frame, a lifting driving device used for lifting the upper supporting frame is arranged on the bottom moving vehicle body, diesel engine supporting legs are arranged on the upper supporting frame, and the positioning clamping device comprises positioning mounting seats arranged on the two sides. And pressing parts used for pressing the two sides of the horizontal transport vehicle are arranged on the positioning mounting seats.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engine test running, in particular to an upper and lower bench device for a diesel engine test vehicle. Background Art

[0002] Diesel engine test is a very important part of the diesel engine manufacturing process. During the test, the diesel engine must be connected to the dynamometer each time, and the dynamometer and other equipment are used to test whether the diesel engine's working load is normal. In order to ensure the quality of the diesel engine, the test and running-in inspection process of medium and large diesel engines takes a long time, and its test process is the longest in the entire installation and testing cycle. Generally speaking, in order to ensure production capacity, multiple test benches will be considered for construction, but medium and large diesel engines have high power, heavy weight, and large appearance. The cost of facilities and equipment invested in the construction of the bench is relatively high and occupies a large area. The traditional way of getting on and off the bench for medium and large diesel engines is generally to use a crane to lift and transport them on and off the bench. The process is not only inefficient, but also cumbersome to operate, and requires a lot of investment in facilities and equipment, and there are also greater safety risks in the lifting process. Summary of the invention

[0003] In order to solve the problems of low efficiency and complicated operation in existing test runs, the utility model provides an upper and lower test bench device for a diesel engine test vehicle, which can effectively improve the test run efficiency and simplify the operation.

[0004] The technical solution is as follows: a diesel engine test vehicle upper and lower platform device, characterized in that it includes a horizontal transport vehicle arranged on a ground conveying track, a positioning clamping device is installed on the horizontal transport vehicle, the horizontal transport vehicle includes a bottom moving vehicle body and an upper support frame, the bottom moving vehicle body is provided with a lifting drive device for lifting the upper support frame, the upper support frame is provided with a diesel engine support leg, the positioning clamping device includes a positioning mounting seat arranged on both sides, and the positioning mounting seat is provided with a clamping component for pressing the two sides of the horizontal transport vehicle.

[0005] It is further characterized in that the ground transport track includes a front track section and a rear track section, the front track section includes a light rail buried in a reinforced concrete layer, and the rear track section includes a flat rail fixed to an iron bottom plate;

[0006] The bottom moving vehicle body comprises two left and right main beams, the two main beams are connected by a cross beam, and the lifting drive devices are respectively arranged at the front and rear ends of the two main beams;

[0007] The lifting drive device includes a synchronous hydraulic jack and a guide device, and the guide device includes a guide sleeve and a guide column;

[0008] Flat guide rails are provided on both sides of the horizontal transport vehicle, the positioning mounting seat is installed on the rear section of the track and is equipped with a V-shaped guide rail pair that matches the flat guide rail, and the clamping component is clamped with the upper end surface of the flat guide rail;

[0009] The clamping component comprises a column, on which a clamping block and a locking bolt are mounted, an outer end of the clamping block is provided with a limiting bolt, and an inner section is a clamping end.

[0010] After the utility model is adopted, the diesel engine to be tested is fixed on the upper support frame and can be moved to the test position with the bottom moving vehicle body. The lifting drive device can lift and adjust the height of the diesel engine. The test operation can be carried out after the clamping component presses the horizontal transport vehicle, which simplifies the operation and effectively improves the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the main view of the ground transport track;

[0012] Figure 2 It is a top view of the ground transport track;

[0013] Figure 3 This is a cross-sectional view of the front section of the track;

[0014] Figure 4 This is a cross-sectional view of the rear section of the track;

[0015] Figure 5 This is the main view of the horizontal transport vehicle;

[0016] Figure 6 The top view of the moving vehicle body for the bottom;

[0017] Figure 7 It is a schematic diagram of the positioning clamping device;

[0018] Figure 8 It is a schematic diagram of the pressing component;

[0019] Fig. 9 This is a schematic diagram of the test run status. DETAILED DESCRIPTION

[0020] See Figures 1 to 9As shown, a diesel engine trial vehicle upper and lower platform device comprises a horizontal transport vehicle 1 arranged on a ground conveying track 2, a positioning clamping device 3 is installed on the horizontal transport vehicle 1, the horizontal transport vehicle 1 comprises a bottom moving vehicle body 1-1 and an upper support frame 1-2, a lifting drive device for lifting the upper support frame 1-2 is arranged on the bottom moving vehicle body 1-1, a diesel engine support leg 1-3 is arranged on the upper support frame 1-2, the base of the diesel engine 4 can be installed on the upper support frame 1-2 by positioning bolts and fastening bolts, the positioning clamping device 3 comprises positioning mounting seats 3-1 arranged on both sides, and the positioning mounting seats 3-1 are provided with clamping components for pressing down the two sides of the horizontal transport vehicle 1.

[0021] The ground conveying track 2 includes a front section and a rear section. The front section includes a light rail 2-2 buried in a reinforced concrete layer 2-1. The light rail 2-2 is supported by an I-beam 2-3. An embedded iron 2-4 is arranged at the lower part of the I-beam 2-3. An adjustment pad 2-5 can be arranged between the light rail 2-2 and the I-beam 2-3 as needed. Secondary concrete pouring can be performed at the light rail 2-2. In order to facilitate the guidance of the wheels 1-4 of the bottom mobile vehicle body 1-1, a notch is provided on the secondary concrete pouring, and the overall strength is high. The rear section includes a flat rail 2-7 fixed to an iron bottom plate 2-6 and fixed by fastening bolts. A transition block is arranged between the front section and the rear section.

[0022] The bottom mobile body 1-1 includes two left and right main beams 1-5, and the two main beams 1-5 are connected by a cross beam 1-6. The front and rear ends of the two main beams 1-5 are respectively provided with lifting drive devices; the lifting drive device includes a synchronous hydraulic jack 1-7 and a guide device 1-8, and the guide device includes a guide sleeve and a guide column. Four synchronous hydraulic jacks 1-7 are used in conjunction with the guide device 1-8 to ensure that the load of each jack is balanced to prevent unbalanced loading and keep the lifting speed of the body synchronized.

[0023] Flat guide rail pairs 1-9 are arranged on both sides of the horizontal transport vehicle 1, the positioning mounting seat 3-1 is installed on the rear section of the track and is installed with a V-shaped guide rail pair 3-2 that cooperates with the flat guide rail pair 1-9, the clamping component cooperates with the upper end surface of the flat guide rail 1-9 for clamping, the clamping component includes a column 3-3, and a clamping block 3-4 and a locking bolt 3-5 are mounted on the column 3-3. A limiting bolt 3-6 is installed on the outer end of the clamping block 3-4, and the inner section is the clamping end. When the horizontal transport vehicle 1 moves into place, the clamping block 3-4 is pressed onto the flat guide rail 1-9, and the locking bolt 3-5 is tightened to fix it.

[0024] The bottom moving vehicle body 1-1 in the present application is provided with a driving motor and a control cabinet.

[0025] When the diesel engine needs to be put on the platform, the horizontal transport vehicle 1 drives to the transport track outside the platform, and after the diesel engine 4 is placed on the upper support frame 1-2 of the horizontal transport vehicle 1, the diesel engine 4 is installed with positioning bolts and fastening bolts, so that the diesel engine 4 and the upper support frame 1-2 are fastened together. The horizontal transport vehicle 1 drives along the track to the rear section of the track, so that the diesel engine 4 and the dynamometer connection plate 5 are initially fitted, and the synchronous hydraulic jack 1-7 releases pressure. The upper support frame 1-2 of the horizontal transport vehicle 1 slowly descends under the influence of its own weight, so that the flat guide rail pair and the V-shaped guide rail pair in the positioning clamping device fit up and down. At this time, the vehicle body support is slowly transformed from the chassis component to the flat guide rail pair 1-9 and the V-shaped guide rail pair 3-2, and the vehicle body is positioned. The four wheels and the transport track do not bear the weight of the vehicle body and the diesel engine. The clamping bolts on the manual clamping component are firmly connected to the vehicle body and the iron bottom plate to achieve the fixation of the diesel engine. When the diesel engine needs to be removed from the test bench after the test, repeat the previous operation to complete the removal from the bench. During the first installation, the coaxiality of the rotation center of the diesel engine and the dynamometer is ensured by adjusting the position of the positioning mounting seat in the positioning clamping device. When the diesel engine is subsequently removed from the bench, the two positioning bolts equipped with the diesel engine and the vehicle body base are combined with the flat guide pair and the V-shaped guide pair to ensure the repetitive accuracy of the rotation center. The actual use of this device shows that it can not only meet the requirements for repeated alignment of the rotation center of the diesel engine and the dynamometer during the factory test and running-in of medium and large diesel engines, but also meet the requirements for removing and removing from the bench. The operation is simple and convenient, with high efficiency and high safety.

Claims

1. A diesel engine test vehicle upper and lower test bench device, characterized in that: It includes a horizontal transport vehicle arranged on a ground conveying track, a positioning clamping device is installed on the horizontal transport vehicle, the horizontal transport vehicle includes a bottom moving vehicle body and an upper support frame, the bottom moving vehicle body is provided with a lifting drive device for lifting the upper support frame, the upper support frame is provided with a diesel engine support leg, the positioning clamping device includes a positioning mounting seat arranged on both sides, and the positioning mounting seat is provided with a clamping component for pressing the two sides of the horizontal transport vehicle.

2. The diesel engine test vehicle upper and lower platform device according to claim 1, characterized in that: The ground transport track comprises a track front section and a track rear section, wherein the track front section comprises a light rail buried in a reinforced concrete layer, and the track rear section comprises a flat rail fixed to an iron bottom plate.

3. The diesel engine test vehicle upper and lower platform device according to claim 1, characterized in that: The bottom moving vehicle body comprises two left and right main beams, the two main beams are connected by a cross beam, and the lifting drive devices are respectively arranged at the front and rear ends of the two main beams.

4. The diesel engine test vehicle upper and lower platform device according to claim 3, characterized in that: The lifting drive device comprises a synchronous hydraulic jack and a guide device, and the guide device comprises a guide sleeve and a guide column.

5. The diesel engine test vehicle upper and lower platform device according to claim 2, characterized in that: Flat guide rail pairs are arranged on both sides of the horizontal transport vehicle, the positioning mounting seat is installed on the rear section of the track and is equipped with a V-shaped guide rail pair that matches the flat guide rail pair, and the clamping component is clamped with the upper end surface of the flat guide rail.

6. The diesel engine test vehicle upper and lower platform device according to claim 1, characterized in that: The clamping component comprises a column, on which a clamping block and a locking bolt are mounted, an outer end of the clamping block is provided with a limiting bolt, and an inner section is a clamping end.

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