Test run rack

Abstract

The invention provides a test run rack, which belongs to the technical field of aero-engine test equipment and comprises a plane sliding plate, a supporting module and at least two adjusting mechanisms, and the supporting module and the at least two adjusting mechanisms are arranged on the upper surface of the plane sliding plate. The supporting module comprises a cantilever and a supporting rod, the cantilever is fixedly installed on the upper surface of the plane sliding plate, and the supporting rod is installed in a round hole of the cantilever in a sliding mode; the adjusting mechanism comprises a limiting bottom plate, a sliding plate and a height adjusting mechanism which are sequentially connected in a sliding mode, the limiting bottom plate is fixedly installed on the upper surface of the plane sliding plate, the height adjusting mechanism comprises an L-shaped plate and an adjusting sliding block, the L-shaped plate is installed on the upper surface of the sliding plate in a sliding mode, and the adjusting sliding block is installed in a sliding groove of the L-shaped plate in a sliding mode. The supporting rod and the adjusting sliding block are configured to be connected with the engine, and the supporting rod and the adjusting sliding block are connected with the engine, so that multi-angle adjustment of the supporting rod and the adjusting sliding block is achieved, and connection with engines of different models can be more convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of aero-engine test equipment, and particularly relates to a test stand. Background Art

[0002] The three-point support type multi-degree-of-freedom adjustable test stand is generally used for installing and aligning a three-point support type aero-engine. When the engine is installed on the test stand, the installation position of the engine is adjusted through the support module and the adjustment mechanism on the test stand, so that the output shaft of the engine is coaxial with the power absorption device. At the same time, the test stand has the function of absorbing the thermal expansion of the engine.

[0003] The three-point support type multi-degree-of-freedom adjustable test stand generally consists of an installation chassis, manual pulleys, axial slide rails, planar slides, an adjustment mechanism, and a support module. Among them, the adjustment mechanism and the support module are fixedly connected to the engine. The adjustment mechanism is connected to the front mounting section of the engine and can adjust the axial position, radial position, and height position of the engine. The support module is connected to the rear mounting section of the engine and can adjust the axial position and height position of the engine, thereby realizing the position adjustment of the engine with multiple degrees of freedom.

[0004] Currently, when adjusting the coaxiality of the commonly used three-point support type test stand, it is often necessary to combine methods such as copper gaskets and knocking. The centering work has repeated phenomena, indirectly increasing the labor cost. Therefore, a three-point support type multi-degree-of-freedom adjustable test stand is needed, which can optimize the centering scheme, reduce the repeated operation situation, and achieve successful centering at one time. Summary of the Invention

[0005] In view of the above problems, the present invention provides a test stand, which includes a planar slide and a support module and at least two adjustment mechanisms arranged on the upper surface of the planar slide;

[0006] The support module includes a cantilever and a support rod. The cantilever is fixedly installed on the upper surface of the planar slide; the support rod is slidably installed in the round hole of the cantilever;

[0007] The adjustment mechanism includes a limit bottom plate, a sliding plate, and a height adjustment mechanism that are sequentially and slidably connected to each other. The limit bottom plate is fixedly installed on the upper surface of the planar slide; the height adjustment mechanism includes an L-shaped plate and an adjustment slider. The L-shaped plate is slidably installed on the upper surface of the sliding plate. The adjustment slider is slidably installed in the chute of the L-shaped plate. The support rod and the adjustment slider are configured to be connected to the engine.

[0008] Further, a card slot is provided at the top of the support rod. The card slot is in an inverted "T" shape and always faces the same direction as the engine axis.

[0009] Further, the adjustment sliders and the support rods of the two adjustment mechanisms are arranged in an isosceles triangle.

[0010] Further, a groove is provided on the upper surface of the adjusting slider, and a limiting pressing plate is installed on the upper surface of the adjusting slider, and the limiting pressing plate is used to limit the engine.

[0011] Further, the adjusting mechanism further includes a second adjusting lead screw, the second adjusting lead screw passes through the first raised plate on the upper surface of the limiting bottom plate and is threadedly connected to the nut on the lower surface of the sliding plate, and the second adjusting lead screw is rotatably connected to the first raised plate.

[0012] Further, the adjusting mechanism further includes a first precision slider and a first hexagon socket head bolt, the first hexagon socket head bolt passes through the round hole on the sliding plate and is threadedly connected to the first precision slider, and the first precision slider is slidably installed in the first chute of the limiting bottom plate.

[0013] Further, the adjusting mechanism further includes a first adjusting lead screw, a second precision slider and a second hexagon socket head bolt, the first adjusting lead screw passes through the second raised plate on the upper surface of the sliding plate and is threadedly connected to the nut under the height adjusting mechanism, and the first adjusting lead screw is rotatably connected to the second raised plate; the second hexagon socket head bolt passes through the round hole on the height adjusting mechanism and is threadedly connected to the second precision slider, and the second precision slider is slidably installed in the second chute of the sliding plate.

[0014] Further, the height adjusting mechanism further includes a wedge block, a third adjusting lead screw and a clearance pressing plate, the wedge block is slidably installed in the chute on the first surface of the L-shaped plate, the inclined surface of the wedge block is attached to the lower surface of the adjusting slider, the adjusting slider is located on the side of the wedge block away from the limiting bottom plate, the third adjusting lead screw passes through the L-shaped plate and is rotatably connected to the wedge block, and the third adjusting lead screw is threadedly connected to the L-shaped plate, and the clearance pressing plate is installed on the first surface of the L-shaped plate.

[0015] Further, the height adjusting mechanism further includes a locking bolt, the locking bolt passes through the L-shaped plate, the adjusting slider and the clearance pressing plate and is threadedly connected to the nut.

[0016] Further, a first nut and a second nut are threadedly installed on the support rod, the first nut and the second nut are respectively located at both ends of the cantilever, a clamping plate is provided on the support rod, and the clamping plate is slidably installed in the chute of the round hole of the cantilever.

[0017] Further, the test bench further includes an installation chassis, a handwheel and an axial slide rail, an axial slide rail is provided on the installation chassis, and the planar slide plate is slidably installed on the axial slide rail; a lead screw is provided on the handwheel, the lead screw passes through the fixed seat on the installation chassis and is threadedly connected to the nut on the lower surface of the planar slide plate; the lead screw is rotatably installed on the fixed seat on the upper surface of the installation chassis.

[0018] Advantages of the present invention:

[0019] 1. The supporting rod of the present invention is slidably installed in the round hole of the cantilever, and the limiting bottom plate is fixedly installed on the upper surface of the planar sliding plate; the sliding plate is slidably installed on the upper surface of the limiting bottom plate; the height adjusting mechanism is slidably installed on the upper surface of the sliding plate; the adjusting slider is slidably installed in the chute of the L-shaped plate. The supporting rod and the adjusting slider are respectively connected to the engine, without interfering with the engine pipeline components, thus realizing the multi-angle adjustment of the supporting rod and the adjusting slider, and further facilitating the connection with engines of different models.

[0020] 2. The present invention drives the height adjusting mechanism to slide on the sliding plate through the first adjusting lead screw to realize the free sliding of the engine position along the axial direction of the first adjusting lead screw, and the coaxiality between the engine and the work-absorbing device can be ensured not to change at any axial position.

[0021] 3. The card slot on the supporting rod of the present invention is an inverted "T" - shaped chute, and the card slot is always in the same direction as the engine axis, thus meeting the displacement caused by the thermal expansion during the engine operation.

[0022] 4. A groove is provided on the upper surface of the adjusting slider of the present invention, and a limiting pressure plate is installed on the upper surface of the adjusting slider. The limiting pressure plate is used to limit the engine. After the engine completes the centering work, it protects the engine mounting section to prevent accidents caused by the fracture of the mounting section during the engine test.

[0023] 5. The adjusting mechanism of the present invention further includes a first adjusting lead screw, a second precision slider and a second hexagon socket head bolt. The first adjusting lead screw passes through the second raised plate on the upper surface of the sliding plate and is threadedly connected to the nut below the height adjusting mechanism. The second precision slider is slidably installed in the second chute of the sliding plate. By tightening the second hexagon socket head bolt, the second precision slider is brought into contact with the sliding plate for locking. There is a small gap between the second precision slider and the second chute, thus realizing the precise sliding installation of the second precision slider in the second chute, and further ensuring that the height adjusting mechanism does not sway back and forth during the sliding process. Other features and advantages of the present invention will be described in the subsequent specification, and some of them will become obvious from the specification or be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures pointed out in the specification and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 shows the working schematic diagram of the test bench in the embodiment of the present invention.

[0026] Figure 2 shows the overall structural schematic diagram of the test bench in the embodiment of the present invention.

[0027] Figure 3 shows the structural schematic diagram of the support module of the test bench in the embodiment of the present invention.

[0028] Figure 4 shows the structural schematic diagram of the adjustment mechanism of the test bench in the embodiment of the present invention.

[0029] Figure 5 shows the cross-sectional schematic diagram of the adjustment mechanism of the test bench in the embodiment of the present invention.

[0030] Figure 6 shows the structural schematic diagram of the height adjustment mechanism of the test bench in the embodiment of the present invention.

[0031] Figure 7 shows Figure 6 the A-A cross-sectional schematic diagram of

[0032] Figure 8 shows Figure 6 the B-B cross-sectional schematic diagram of

[0033] Figure 9 shows the structural schematic diagram of the cantilever of the test bench in the embodiment of the present invention.

[0034] Figure 10 shows the structural schematic diagram of the support rod of the test bench in the embodiment of the present invention.

[0035] In the figure, 1, mounting chassis; 2, handwheel; 3, axial slide rail; 4, planar slide plate;

[0036] 5, support module; 51, cantilever; 52, first nut; 53, support rod; 531, card slot; 532, card plate; 54, second nut;

[0037] 6, adjustment mechanism; 61, limit bottom plate; 611, first chute; 62, first adjustment lead screw; 63, sliding plate; 631, second chute; 64, second adjustment lead screw; 65, height adjustment mechanism; 651, L-shaped plate; 652, limit pressure plate; 653, locking bolt; 654, wedge block; 655, adjustment slider; 656, third adjustment lead screw; 657, clearance pressure plate; 66, first precision slider; 67, second precision slider; 68, first hexagon socket head bolt; 69, second hexagon socket head bolt;

[0038] 7, engine. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] Reference Figure 1 , Figure 1 shows a working schematic diagram of a test bench in an embodiment of the present invention. A test bench includes a flat slide plate 4 and a support module 5 and at least two adjustment mechanisms 6 arranged on the upper surface of the flat slide plate 4; the support module 5 includes a cantilever 51 and a support rod 53, the cantilever 51 is fixedly installed on the upper surface of the flat slide plate 4; the support rod 53 is slidably installed in the round hole of the cantilever 51.

[0041] The adjustment mechanism 6 includes a limit bottom plate 61, a sliding plate 63 and a height adjustment mechanism 65 that are sequentially slidably connected to each other. The limit bottom plate 61 is fixedly installed on the upper surface of the flat slide plate 4; the sliding plate 63 is slidably installed on the upper surface of the limit bottom plate 61; the height adjustment mechanism 65 is slidably installed on the upper surface of the sliding plate 63; the height adjustment mechanism 65 includes an L-shaped plate 651, a limit pressing plate 652 and an adjustment slider 655. The L-shaped plate 651 is slidably installed on the upper surface of the sliding plate 63, and the adjustment slider 655 is slidably installed in the chute of the L-shaped plate 651. The support rod 53 and the adjustment slider 655 are configured to be connected to the engine 7.

[0042] Specifically, the engine 7 is installed on the support module 5 and the adjustment mechanism 6. The adjustment mechanism 6 is used to install the front mounting section of the engine 7. Among them, the adjustment slider 655 can achieve a height adjustment of the engine (7±2) mm, the L-shaped plate 651 can achieve a linear adjustment of ±5 mm in the axial direction of the engine 7, the sliding plate 63 can achieve a linear adjustment of ±5 mm in the radial direction of the engine 7, and the card slot 531 of the support module 5 installs the rear mounting section of the engine 7, which can achieve a height adjustment of the engine (7±5) mm. The card slot 531 is an inverted "T" shape, and the card slot 531 is always in the same direction as the axis of the engine 7, so as to meet the displacement caused by the thermal expansion during the operation of the engine 7. As Figure 1 shown.

[0043] Further, it includes two adjustment mechanisms 6, and the adjustment sliders 655 and the support rods 53 of the two adjustment mechanisms 6 are arranged in an isosceles triangle. Specifically, as Figure 1 shown, the engine 7 is supported by the limit pressing plate 652 and the support rod 53 in an isosceles triangle or an equilateral triangle, thereby improving the stability of the engine 7.

[0044] Reference Figure 4 The upper surface of the adjustment slider 655 is provided with a groove, and a limit pressing plate 652 is installed on the upper surface of the adjustment slider 655. The limit pressing plate 652 is used to limit the engine 7.

[0045] Specifically, the limit pressing plate 652 is used to fix the front mounting section of the engine 7 on the adjustment slider 655. After the engine 7 completes the centering work, the mounting section of the engine 7 can be protected to prevent accidents caused by the fracture of the mounting section during the engine 7 test.

[0046] Reference Figure 5 The adjustment mechanism 6 further includes a second adjustment lead screw 64. The second adjustment lead screw 64 passes through the first raised plate on the upper surface of the limit base plate 61 and is threadedly connected to the nut on the lower surface of the sliding plate 63, and the second adjustment lead screw 64 is rotatably connected to the first raised plate.

[0047] Furthermore, the adjustment mechanism 6 further includes a first precision slider 66 and a first hexagon socket head bolt 68. The first hexagon socket head bolt 68 passes through the round hole on the sliding plate 63 and is threadedly connected to the first precision slider 66. The first precision slider 66 is slidably installed in the first chute 611 of the limit base plate 61. The first precision slider 66 and the first hexagon socket head bolt 68 jointly form a lock. During adjustment, by slightly loosening the first hexagon socket head bolt 68, the position of the sliding plate 63 in the front-rear direction can be adjusted by rotating the second adjustment lead screw 64 ( Figure 4 for reference). After adjustment, by tightening the first hexagon socket head bolt 68, the first precision slider 66 is brought into contact with the limit base plate 61 for locking. Specifically, the first chute 611 is an inverted T-shaped groove, the first precision slider 66 is a cube or a cuboid block, and there is a small gap between the first precision slider 66 and the first chute 611. Thus, the first precision slider 66 can be accurately slidably installed in the first chute 611, and the sliding plate 63 will not sway left and right during the sliding process.

[0048] In the above embodiment, optionally, another implementation manner is that the adjustment mechanism 6 further includes a first adjustment lead screw 62, a second precision slider 67, and a second hexagon socket head bolt 69. The first adjustment lead screw 62 passes through the second raised plate on the upper surface of the sliding plate 63 and is threadedly connected to the nut below the height adjustment mechanism 65, and the first adjustment lead screw 62 is rotatably connected to the second raised plate; the adjustment mechanism 6 further includes a second precision slider 67 and a second hexagon socket head bolt 69. The second hexagon socket head bolt 69 passes through the round hole on the height adjustment mechanism 65 and is threadedly connected to the second precision slider 67. The second precision slider 67 is slidably installed in the second chute 631 of the sliding plate 63.

[0049] Specifically, the second precision slider 67 and the second hexagon socket head bolt 69 jointly form a locking mechanism. When adjusting, slightly loosen the second hexagon socket head bolt 69, and by rotating the first adjusting lead screw 62, the position of the height adjusting mechanism 65 in the left-right direction can be adjusted (for reference Figure 3 ), after adjustment, tighten the second hexagon socket head bolt 69 to make the second precision slider 67 contact with the sliding plate 63 for locking. Specifically, the second chute 631 is an inverted T-shaped groove, the second precision slider 67 is a cube or cuboid block, and there is a small gap between the second precision slider 67 and the second chute 631, thus enabling the second precision slider 67 to be accurately slidably installed in the second chute 631, and further preventing the height adjusting mechanism 65 from swaying back and forth during the sliding process.

[0050] Reference Figure 6 , the height adjusting mechanism 65 further includes a wedge block 654, a third adjusting lead screw 656 and a clearance pressing plate 657. The wedge block 654 is slidably installed in the chute on the first surface of the L-shaped plate 651, and the inclined surface of the wedge block 654 is in contact with the lower surface of the adjusting slider 655 (for reference Figure 7 ), the adjusting slider 655 is slidably installed in the chute of the L-shaped plate 651, and the adjusting slider 655 is located on the side of the wedge block 654 away from the limit bottom plate 61 (for reference Figure 7 ), the third adjusting lead screw 656 passes through the L-shaped plate 651 and is rotationally connected to the wedge block 654, and the third adjusting lead screw 656 is threadedly connected to the L-shaped plate 651. The clearance pressing plate 657 is installed on the first surface of the L-shaped plate 651, and there is a gap between the clearance pressing plate 657 and the wedge block 654 and the adjusting slider 655. The wedge block 654 and the adjusting slider 655 adopt the principle of self-locking of the inclined surface to ensure the stability of the height position. The clearance pressing plate 657 ensures that the wedge block 654, the adjusting slider 655 and the two sides are in a small clearance fit state, which can not only realize the free sliding of the wedge block 654 and the adjusting slider 655, but also realize the accuracy within the required range within the sliding range (for reference Figure 8 ).

[0051] Combined with the embodiments of the present invention, the height adjusting mechanism 65 further includes a locking bolt 653. The locking bolt 653 passes through the L-shaped plate 651, the adjusting slider 655 and the clearance pressing plate 657 and is threadedly connected to the nut. The two-way paired wedge sliders are used to adjust the height position, and at the same time, the final position is locked by the locking bolt 653. The locking bolt 653 is in a tight fit with the adjusting slider 655. At this time, the clearance pressing plate 657 contacts with the wedge block 654 and the adjusting slider 655 to generate friction, thereby fixing the adjusting slider 655. After the height adjustment is completed, tighten the locking bolt 653 to complete the final fixation of the height position.

[0052] Reference Figure 3, a first nut 52 and a second nut 54 are threadedly mounted on the support rod 53. The first nut 52 and the second nut 54 are respectively located at both ends of the cantilever 51. A clamping plate 532 is provided on the support rod 53, and the clamping plate 532 is slidably mounted in the chute of the circular hole of the cantilever 51. By simultaneously screwing the first nut 52 and the second nut 54, the support rod 53 is moved up and down. That is, when it is necessary to move the support rod 53 upward, by screwing the second nut 54, the second nut 54 is moved away from the first nut 52, and then the support rod 53 is lifted so that the second nut 54 contacts the cantilever 51, and then the first nut 52 is screwed so that the first nut 52 contacts the cantilever 51, thereby completing the adjustment of the height position of the support rod 53. When it is necessary to move the support rod 53 downward, by screwing the first nut 52, the first nut 52 is moved away from the second nut 54, and then the support rod 53 is lifted so that the first nut 52 contacts the cantilever 51, and then the second nut 54 is screwed so that the second nut 54 contacts the cantilever 51, thereby completing the adjustment of the height position of the support rod 53.

[0053] Specifically, the cantilever 51 is of a cantilever structure and is a support device for the rear mounting section of the engine 7. The support rod 53 uses two handwheels with reverse threads to adjust the height position of the rear mounting section of the engine 7. The inverted "T" - shaped card slot structure at its top can support the rear mounting section of the engine 7 and realize the axial sliding of the rear mounting section of the engine 7, only restricting the height, and being able to freely extend in the axial and radial directions, and at the same time can preferably absorb the thermal expansion when the engine 7 is working. The cantilever 51 adopts an inner - outer ring flat - push card slot structure (as Figure 9 shown), and at the same time, a clamping plate 532 (as Figure 10 shown) is adopted at the middle position of the support rod 53. The clamping plate 532 is slidably mounted in the inner - outer ring flat - push card slot structure of the cantilever 51, which can prevent the support rod 53 from rotating when the cantilever 51 is adjusted. The cantilever 51 combines the inner - outer ring flat - push card slot structure with left - and right - hand threads to realize the function of continuous adjustment of the height position without changing the direction of the card slot 531 of the support rod 53.

[0054] Refer to Figure 2 , the test bench also includes a mounting chassis 1, a handwheel 2 and an axial slide rail 3. An axial slide rail 3 is provided on the mounting chassis 1, and a planar slide plate 4 is slidably mounted on the axial slide rail 3; a lead screw is provided on the handwheel 2, and the lead screw passes through the fixed seat on the mounting chassis 1 and is threadedly connected to the nut on the lower surface of the planar slide plate 4; the lead screw is rotatably mounted on the fixed seat on the upper surface of the mounting chassis 1.

[0055] Specifically, the flat slide plate 4 achieves precise movement in the axial direction of the engine 7's axis through the axial slide rail 3. The handwheel 2 connects the mounting chassis 1 and the flat slide plate 4 into one body. Moving the entire flat slide plate 4 to one end away from the handwheel 2 allows the output shaft of the engine 7 to be installed and connected to the testing or output mechanism. The mounting chassis 1 is the fixed foundation for the entire structure. A lead screw is provided on the handwheel 2, and a push nut is provided under the flat slide plate 4. The lead screw and the push nut are in threaded engagement. The two ends of the lead screw are respectively rotatably installed on the fixed seats on the mounting chassis 1. By loosening the 4 fixing bolts of the flat slide plate 4 and manually turning the handwheel 2, the engine 7 can be moved along the axis direction of the engine 7. By tightening the fixing bolts, the flat slide plate 4 can be locked at any position on the axial guide rail of the axial slide rail 3.

[0056] The handwheel 2, the flat slide plate 4, and the axial slide rail 3 form a complete slideway mechanism, realizing the function of continuously adjusting the overall axial position of the engine 7.

[0057] Working principle: When the present invention is in use, by loosening the 4 fixing bolts of the flat slide plate 4 and manually turning the handwheel 2, the handwheel 2 drives the lead screw to rotate, and thus the engine 7 can be moved along the axis direction of the engine 7. By tightening the fixing bolts, the flat slide plate 4 can be locked at any position on the axial guide rail of the axial slide rail 3.

[0058] Next, by installing the rear mounting section of the engine 7 into the card slot 531 of the cantilever 51 and installing the front mounting section of the engine 7 onto the adjustment slider 655 of the adjustment mechanism 6, the rear mounting section of the engine 7 is fixed by the limit pressing plate 652. Then, by slightly loosening the first inner hexagon bolt 68 and rotating the second adjustment lead screw 64, the axial slide rail 3 of the mounting chassis 1 can be adjusted in the front and rear directions. After adjustment, by tightening the first inner hexagon bolt 68, the first precision slider 66 is brought into contact with the limit bottom plate 61 for locking.

[0059] By slightly loosening the second inner hexagon bolt 69 and rotating the first adjustment lead screw 62, the height adjustment mechanism 65 can be adjusted in the left and right directions. After adjustment, by tightening the second inner hexagon bolt 69, the second precision slider 67 is brought into contact with the sliding plate 63 for locking.

[0060] By rotating the third adjustment lead screw 656 to drive the wedge block 654 and then drive the adjustment slider 655 to adjust the height of the engine 7. When the height is adjusted, tighten the locking bolt 653 to complete the final fixation of the height position.

[0061] The adjustment mechanism 6 adopts two sets of symmetric structures to synchronously install the front mounting node of the engine 7. Under the action of the sliding plate 63, the height adjustment mechanism 65, and the adjustment slider 655, the target component can achieve synchronous displacement in the front-back, left-right, and height directions at a single point or two points. After the target component completes centering, the position is finally fixed by the locking bolt 653, thereby realizing the function of linear fine adjustment in three directions of the front fulcrum of the engine 7.

[0062] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A test stand, characterized in that, It includes a flat skateboard (4), a support module (5) arranged on the upper surface of the flat skateboard (4), and at least two adjusting mechanisms (6); The support module (5) includes a cantilever (51) and a support rod (53). The cantilever (51) is fixedly installed on the upper surface of the flat skateboard (4); the support rod (53) is slidably installed in the round hole of the cantilever (51); The adjusting mechanism (6) includes a limit bottom plate (61), a sliding plate (63), and a height adjusting mechanism (65) that are sequentially slidably connected to each other. The limit bottom plate (61) is fixedly installed on the upper surface of the flat skateboard (4); the height adjusting mechanism (65) includes an L-shaped plate (651) and an adjusting slider (655). The L-shaped plate (651) is slidably installed on the upper surface of the sliding plate (63), and the adjusting slider (655) is slidably installed in the chute of the L-shaped plate (651). The support rod (53) and the adjusting slider (655) are configured to be connected to the engine (7).

2. The test stand according to claim 1, characterized in that, A card slot (531) is provided at the top of the support rod (53). The card slot (531) is an inverted "T" shape, and the card slot (531) is always in the same direction as the axis of the engine (7).

3. A test bench according to claim 1, characterized in that The adjusting sliders (655) and the support rods (53) of the two adjusting mechanisms (6) are arranged in an isosceles triangle.

4. A test bench according to claim 3, characterized in that, A groove is provided on the upper surface of the adjusting slider (655), and a limit pressing plate (652) is installed on the upper surface of the adjusting slider (655). The limit pressing plate (652) is used to limit the engine (7).

5. A test bench according to claim 1, characterized in that, The adjusting mechanism (6) further includes a second adjusting lead screw (64). The second adjusting lead screw (64) passes through the first raised plate on the upper surface of the limit bottom plate (61) and is threadedly connected to the nut on the lower surface of the sliding plate (63), and the second adjusting lead screw (64) is rotatably connected to the first raised plate.

6. The test bench according to claim 5, characterized in that, The adjusting mechanism (6) further includes a first precision slider (66) and a first hexagon socket head bolt (68). The first hexagon socket head bolt (68) passes through the round hole on the sliding plate (63) and is threadedly connected to the first precision slider (66). The first precision slider (66) is slidably installed in the first chute (611) of the limit bottom plate (61).

7. A test bench according to claim 1, characterized in that, The adjusting mechanism (6) further includes a first adjusting lead screw (62), a second precision slider (67), and a second hexagon socket head bolt (69). The first adjusting lead screw (62) passes through the second raised plate on the upper surface of the sliding plate (63) and is threadedly connected to the nut below the height adjusting mechanism (65), and the first adjusting lead screw (62) is rotatably connected to the second raised plate; the second hexagon socket head bolt (69) passes through the round hole on the height adjusting mechanism (65) and is threadedly connected to the second precision slider (67). The second precision slider (67) is slidably installed in the second chute (631) of the sliding plate (63).

8. A test bench according to claim 1, characterized in that, The height adjustment mechanism (65) further includes a wedge block (654), a third adjustment lead screw (656), and a clearance pressing plate (657). The wedge block (654) is slidably installed in a chute on the first surface of the L-shaped plate (651). The inclined surface of the wedge block (654) is in contact with the lower surface of the adjustment slider (655). The adjustment slider (655) is located on the side of the wedge block (654) away from the limit bottom plate (61). The third adjustment lead screw (656) passes through the L-shaped plate (651) and is rotatably connected to the wedge block (654), and the third adjustment lead screw (656) is threadedly connected to the L-shaped plate (651). The clearance pressing plate (657) is installed on the first surface of the L-shaped plate (651).

9. The test bench according to claim 8, characterized in that, The height adjustment mechanism (65) further includes a locking bolt (653). The locking bolt (653) passes through the L-shaped plate (651), the adjustment slider (655), and the clearance pressing plate (657) and is threadedly connected to a nut.

10. A test bench according to claim 1, characterized in that, A first nut (52) and a second nut (54) are threadedly installed on the support rod (53). The first nut (52) and the second nut (54) are respectively located at both ends of the cantilever (51). A clamping plate (532) is provided on the support rod (53). The clamping plate (532) is slidably installed in a chute of a circular hole of the cantilever (51).

11. A test bench according to claim 1, characterized in that, The test bench further includes a mounting chassis (1), a handwheel (2), and an axial slide rail (3). An axial slide rail (3) is provided on the mounting chassis (1). The planar slide plate (4) is slidably installed on the axial slide rail (3). A lead screw is provided on the handwheel (2). The lead screw passes through a fixed seat on the mounting chassis (1) and is threadedly connected to a nut on the lower surface of the planar slide plate (4). The lead screw is rotatably installed on a fixed seat on the upper surface of the mounting chassis (1).

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