Engine roll-over stand for engineering machinery

By designing an engine flip frame for engineering machinery that uses a combination of lift main support, lift secondary support and slip mechanism, the problem of lack of suitable for multiple types of engine flip frames in the prior art is solved, and the height adjustment of the engine flip frame and the adaptation of different models of engines is realized, and maintenance efficiency is improved.

CN222874543UActive Publication Date: 2025-05-16JINAN TIANZHONG IND & TRADE CO LTD
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Patent Information

Application Number
CN202421804928.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-29
Publication Date
2025-05-16
Estimated Expiration
2034-07-29

AI Technical Summary

Technical Problem

The lack of flip frames suitable for multiple types of engines in the prior art, making it difficult to achieve unified flip disassembly and assembly operations during engine maintenance.

Method used

An engine flip frame for construction machinery is designed, using a combination of lifting main support and lifting secondary support and a sliding mechanism. Through the sliding movement of hydraulic cylinders and sliders, the height adjustment of the engine flip frame and the adaptation of different models of engines is achieved.

Benefits of technology

The height adjustment of the engine flip frame and the adaptation of different models of engines are realized, which simplifies the engine flip disassembly and assembly process and improves maintenance efficiency.

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Abstract

The utility model relates to an engine roll-over stand for engineering machinery, which comprises a base, two groups of sliding mechanisms, a lifting main support, a main roll-over stand, a lifting auxiliary support, an auxiliary roll-over stand and a power mechanism, the two groups of sliding mechanisms are respectively arranged at two ends of the base, and the lifting main support and the lifting auxiliary support are respectively and fixedly connected with one group of sliding mechanisms. The main turnover frame is fixedly installed on the upper portion of the lifting main support, the auxiliary turnover frame is fixedly installed on the upper portion of the lifting auxiliary support, and the power mechanism is fixedly installed on the lifting main support and is in driving connection with the main turnover frame. The lifting main support and the lifting auxiliary support can adjust the height of the engine overturning frame so as to be suitable for fixed installation of engines with different heights. The sliding mechanism can drive the lifting main support and the lifting auxiliary support to slide and adjust the distance between the lifting main support and the lifting auxiliary support so as to adapt to fixed installation of engines of different types and different models.
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Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing auxiliary equipment, in particular to an engine turnover frame for engineering machinery. Background Art

[0002] An engine is a machine that can convert other forms of energy into mechanical energy. Engines have a wide range of applications and play a vital role in both electricity production and power transmission. Generally speaking, engines on construction machinery will require major overhauls if they run for more than 8,000 hours. During the maintenance process, the engine needs to be turned over, disassembled, and assembled, so an engine maintenance turning stand is needed. However, there are many types and models of engines, and there is no engine turning stand on the market that can be suitable for multiple categories. Summary of the invention

[0003] In order to overcome the above technical problems, the utility model provides an engine turning frame for engineering machinery.

[0004] The utility model provides an engine tilting frame for engineering machinery adopts the following technical solution:

[0005] An engine turning frame for engineering machinery comprises a base, a sliding mechanism, a lifting main support, a main turning frame, a lifting sub-support, a sub-turning frame and a power mechanism, wherein the sliding mechanism is arranged on the base, and two groups of the sliding mechanisms are respectively arranged at two ends of the base, the lifting main support and the lifting sub-support are respectively fixedly connected to one group of sliding mechanisms, the main turning frame is fixedly installed on the upper part of the lifting main support, the sub-turning frame is fixedly installed on the upper part of the lifting sub-support, and the power mechanism is fixedly installed on the lifting main support, and the power mechanism drives and connects the main turning frame.

[0006] By adopting the above technical solution, by setting a lifting main support and a lifting auxiliary support, the engine flip frame can be adjusted in height to suit the fixed installation of engines of different heights; the lifting main support and the lifting auxiliary support are fixedly connected to a set of sliding mechanisms, and the sliding mechanism can drive the lifting main support and the lifting auxiliary support to slide, thereby adjusting the distance between the lifting main support and the lifting auxiliary support to adapt to the fixed installation of engines of different categories and models.

[0007] Preferably, the sliding mechanism includes a hydraulic cylinder, a slide rail and a slider, the hydraulic cylinder is fixedly arranged at the bottom of the base, the slide rail is fixedly installed at the upper part of the base, a through groove is opened on the base, the extended end of one group of the hydraulic cylinders passes through the through groove through a connecting block and is fixedly connected to the lifting main support, and the extended end of another group of the hydraulic cylinders passes through the through groove through a connecting block and is fixedly connected to the lifting auxiliary support, the slider is slidably connected to the slide rail, the upper part of the slider of one group of the sliding mechanisms is fixedly installed with the lifting main support, and the upper part of the slider of another group of the sliding mechanisms is fixedly installed with the lifting auxiliary support.

[0008] Preferably, the lifting main support includes a main base plate, a cylinder, a main support shell and a main support inner box, the main base plate is fixedly mounted on the upper part of the slider, the cylinder is fixedly mounted on the main base plate, the main support shell is fixedly mounted on the main base plate, the main support inner box is sleeved inside the main support shell, the main support inner box is slidably connected to the main support shell, the cylinder is arranged inside the main support inner box, the protruding end of the cylinder is fixedly connected to the inner wall of the main support inner box through a plate, and the top of the main support inner box is fixedly connected to a main flip frame.

[0009] Preferably, the lifting sub-support includes a sub-base plate, a sub-support shell, a sub-support inner box, a worm gear screw drive and a hand crank, the sub-base plate is fixedly mounted on the upper part of the slider, the sub-support shell is fixedly mounted on the sub-base plate, the sub-support inner box is sleeved inside the sub-support shell, the sub-support inner box is slidably connected to the sub-support shell, the worm gear screw drive is fixedly mounted on the sub-base plate, the worm gear screw drive is arranged inside the sub-support inner box, the output end of the worm gear screw drive is fixedly connected to the inner wall of the sub-support inner box, and the hand crank is fixedly connected to the input shaft of the worm gear screw drive.

[0010] By adopting the above technical scheme, the slider is driven to slide on the slide rail through the extension and contraction of the hydraulic cylinder, thereby driving the sliding movement of the lifting main support or the lifting auxiliary support, and the lifting main support and the lifting auxiliary support are moved closer to or farther away from each other to adapt to different categories and models of engines; the protruding end of the cylinder is fixedly connected to the inner wall of the main support inner box, that is, the cylinder can drive the main support inner box to move up and down, so that the main flip frame fixed on the main support inner box can move up and down; similarly, the worm gear screw drive can drive the auxiliary support inner box to move up and down, so that the auxiliary flip frame fixedly installed on the auxiliary support inner box can move up and down, so that the engine flip frame can be adjusted in height to be suitable for the fixed installation of engines of different heights.

[0011] Preferably, the main flip frame includes a main case body, a main rotating shaft and a flywheel housing connecting part. The main case body is fixedly mounted on the main supporting inner box. The main rotating shaft is rotatably connected to the main case body. One end of the main rotating shaft is fixedly connected to the output end of the power mechanism, and the other end is fixedly connected to the flywheel housing connecting part. A plurality of flywheel housing connecting holes are provided on the flywheel housing connecting part.

[0012] Preferably, the auxiliary flip frame includes an auxiliary box body, an auxiliary shaft, a ball shaft head connecting part and a hand wheel turntable. The auxiliary box body is fixedly mounted on the auxiliary support inner box. The auxiliary shaft is rotatably connected to the auxiliary box body. One end of the auxiliary shaft is fixedly connected to the hand wheel turntable, and the other end is fixedly connected to the ball shaft head connecting part. A plurality of ball shaft head connecting holes are provided on the ball shaft head connecting part.

[0013] By adopting the above technical scheme, the main shaft is driven by the power mechanism to rotate the flywheel housing connection part, and the flywheel housing connection part is connected to the flywheel housing of the engine, so that the engine can be flipped over; the auxiliary shaft is driven by rotating the handwheel dial to rotate the ball shaft head connection part, and the ball shaft head connection part is connected to the ball shaft head of the engine. The overall flipping of the engine is mainly achieved by the power mechanism driving the flywheel housing connection part. When the engine is connected to the flip frame, the flywheel housing of the engine is first connected to the flywheel housing connection part, and then the handwheel dial is turned to drive the ball shaft head connection part to rotate, so as to adjust the ball shaft head connection part so that it can be aligned with the engine ball shaft head.

[0014] Preferably, the flywheel housing connecting hole and the ball shaft head connecting hole are both elongated holes.

[0015] By adopting the above technical solution and setting the flywheel housing connection hole and the ball shaft head connection hole as long holes, it is possible to adapt to the connection of engines of different varieties and models.

[0016] Preferably, an oil receiving box and a jack are fixedly provided on the base, the oil receiving box is arranged between the lifting main support and the lifting auxiliary support, and the four groups of jacks are respectively arranged outside the four corners of the oil receiving box.

[0017] By adopting the above technical solution, waste oil can be collected in the oil collecting box by setting up the oil collecting box, so as to avoid oil leakage during engine maintenance and causing the flip frame to become dirty. The jack can help support the engine when needed.

[0018] In summary, the utility model has the following beneficial effects:

[0019] 1. The utility model discloses an engine turning frame for engineering machinery, which can be adjusted in height by setting a lifting main support and a lifting auxiliary support, so as to be suitable for the fixed installation of engines of different heights; the lifting main support and the lifting auxiliary support are fixedly connected with a set of sliding mechanisms, and the sliding mechanisms can drive the lifting main support and the lifting auxiliary support to slide, so as to adjust the distance between the lifting main support and the lifting auxiliary support, so as to be suitable for the fixed installation of engines of different categories and models.

[0020] 2. The utility model is an engine turning frame for engineering machinery, which drives the sliding block to slide on the sliding rail through the extension and retraction of the hydraulic cylinder, thereby driving the sliding movement of the lifting main support or the lifting auxiliary support, and the lifting main support and the lifting auxiliary support are moved closer to or farther away from each other to adapt to different categories and models of engines; the protruding end of the cylinder is fixedly connected to the inner wall of the main support inner box, that is, the cylinder can drive the main support inner box to move up and down, so that the main turning frame fixed on the main support inner box can move up and down; similarly, the worm gear screw transmission can drive the auxiliary support inner box to move up and down, so that the auxiliary turning frame fixedly installed on the auxiliary support inner box can move up and down, so that the engine turning frame can be height-adjusted to be suitable for the fixed installation of engines of different heights.

[0021] 3. The utility model is an engine flipping frame for engineering machinery, which drives the main shaft through a power mechanism to drive the flywheel housing connection part to rotate, and the flywheel housing connection part is connected to the flywheel housing of the engine, so as to realize the flipping of the engine; the auxiliary shaft is driven by rotating the handwheel dial to drive the ball shaft head connection part to rotate, and the ball shaft head connection part is connected to the ball shaft head of the engine. The overall flipping of the engine is mainly realized by the power mechanism driving the flywheel housing connection part. When the engine is connected to the flipping frame, the flywheel housing of the engine is first connected to the flywheel housing connection part, and then the handwheel dial is turned to drive the ball shaft head connection part to rotate, so as to adjust the ball shaft head connection part so that it can be aligned with the engine ball shaft head.

[0022] 4. The utility model provides an engine flip stand for construction machinery, which can adapt to the connection of engines of different varieties and models by setting the flywheel housing connection hole and the ball shaft head connection hole as long holes.

[0023] 5. The utility model provides an engine turning frame for construction machinery. By providing an oil collecting box, waste oil can be collected in the oil collecting box to avoid oil leakage during engine maintenance and causing the turning frame to become dirty. A jack is provided to help support the engine when needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of an engine flip stand for engineering machinery of the utility model;

[0025] Figure 2This is a bottom view of an engine flip stand for engineering machinery according to the utility model;

[0026] Figure 3 It is a front view of the lifting main support and the main turning frame of the engine turning frame for engineering machinery;

[0027] Figure 4 It is a side view of the lifting main support and the main turning frame of the engine turning frame for engineering machinery;

[0028] Figure 5 It is a front view of the lifting auxiliary support and the auxiliary turning frame of the engine turning frame for engineering machinery;

[0029] Figure 6 The diagram shows a side view of the lifting auxiliary support and auxiliary tilting frame of an engine tilting frame for construction machinery.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. base; 11. through groove; 2. sliding mechanism; 21. hydraulic cylinder; 22. slide rail; 23. slider; 3. lifting main support; 31. main bottom plate; 32. cylinder; 33. main support shell; 34. main support inner box; 4. main turning frame; 41. main box body; 42. main rotating shaft; 43. flywheel housing connection; 5. lifting auxiliary support; 51. auxiliary bottom plate; 52. auxiliary support shell; 53. auxiliary support inner box; 54. worm gear screw drive; 55. hand crank; 6. auxiliary turning frame; 61. auxiliary box body; 62. auxiliary rotating shaft; 63. ball shaft head connection; 64. handwheel turntable; 7. power mechanism; 71. motor; 72. reducer; 73. controller; 8. oil receiving box; 9. jack. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-Figure 6 The utility model is described in further detail.

[0032] This embodiment discloses an engine rollover frame for engineering machinery. Figure 1-Figure 6, including a base 1, a sliding mechanism 2, a lifting main support 3, a main flip frame 4, a lifting secondary support 5, a secondary flip frame 6 and a power mechanism 7. The sliding mechanism 2 is arranged on the base 1, and two groups of sliding mechanisms 2 are relatively arranged at the two ends of the base 1. The sliding mechanism 2 includes a hydraulic cylinder 21, a slide rail 22 and a slider 23. The hydraulic cylinder 21 is fixedly arranged at the bottom of the base 1, and the slide rail 22 is fixedly installed on the upper part of the base 1. A through groove 11 is opened on the base 1. The extended end of one group of hydraulic cylinders 21 passes through the through groove 11 through a connecting block and is fixedly connected to the lifting main support 3. The extended end of the other group of hydraulic cylinders 21 passes through the through groove 11 through a connecting block and is fixedly connected to the lifting secondary support 5. The slider 23 is slidably connected to the slide rail 22. The lifting main support 3 and the lifting secondary support 5 are respectively fixedly installed on the sliders 23 of the two groups of sliding mechanisms 2. The two ends of the engine are respectively fixed by the main flip frame 4 and the secondary flip frame 6 On the engine flip frame, the main flip frame 4 is fixedly mounted on the upper part of the lifting main support 3, and the auxiliary flip frame 6 is fixedly mounted on the upper part of the lifting auxiliary support 5. The hydraulic cylinder 21 is telescopically driven to drive the slider 23 to slide on the slide rail 22, so as to adjust the distance between the lifting main support 3 and the lifting auxiliary support 5, and the lifting main support 3 and the lifting auxiliary support 5 can adjust the height of the engine flip frame, so that the engine flip frame can be suitable for the fixed installation of engines of different heights, different categories and different models; the power mechanism 7 is fixedly mounted on the lifting main support 3, and the power mechanism 7 includes a motor 71, a reducer 72 and a controller 73. The motor 71 drives the reducer 72, and the output end of the reducer 72 is connected to the main flip frame 4. The controller 73 controls the operation of the motor 71, and the motor 71 drives the reducer 72 to drive the main flip frame 4 to perform a flipping movement to realize the flipping of the engine.

[0033] Among them, Figure 1-Figure 6 As shown, the lifting main support 3 includes a main bottom plate 31, a cylinder 32, a main support shell 33 and a main support inner box 34. The main bottom plate 31 is fixedly mounted on the upper part of the slider 23, the cylinder 32 is fixedly mounted on the main bottom plate 31, the main support shell 33 is fixedly mounted on the main bottom plate 31, the main support inner box 34 is sleeved inside the main support shell 33, the main support inner box 34 is slidably connected to the main support shell 33, the cylinder 32 is arranged inside the main support inner box 34, and the protruding end of the cylinder 32 is fixed to the inner wall of the main support inner box 34 through a plate. The top of the main support inner box 34 is fixedly connected with the main flip frame 4, the hydraulic cylinder 21 is telescopically driven to drive the slider 23 and then drive the lifting main support 3 to slide, close to or away from the lifting secondary support 5, so as to be suitable for the fixed connection of engines of different models, and the protruding end of the cylinder 32 is fixedly connected to the inner wall of the main support inner box 34, that is, the cylinder 32 can drive the main support inner box 34 to move up and down, so that the main flip frame 4 fixed on the main support inner box 34 can move up and down, so that it can be suitable for the fixed installation of engines of different heights.

[0034] Among them, Figure 1-Figure 6 As shown, the lifting sub-support 5 includes a sub-base plate 51, a sub-support shell 52, a sub-support inner box 53, a worm gear screw drive 54 and a hand crank 55. The sub-base plate 51 is fixedly mounted on the upper part of the slider 23, the sub-support shell 52 is fixedly mounted on the sub-base plate 51, the sub-support inner box 53 is sleeved inside the sub-support shell 52, the sub-support inner box 53 is slidably connected to the sub-support shell 52, the worm gear screw drive 54 is fixedly mounted on the sub-base plate 51, the worm gear screw drive 54 is arranged inside the sub-support inner box 53, the output end of the worm gear screw drive 54 is fixedly connected to the inner wall of the sub-support inner box 53, the hand crank 55 is fixedly connected to the input shaft of the worm gear screw drive 54, and the worm gear screw drive 54 can drive the sub-support inner box 53 to move up and down, so that the sub-turning frame 6 fixedly mounted on the sub-support inner box 53 can move up and down, so that the engine turnover frame can be height-adjusted to be suitable for the fixed installation of engines of different heights.

[0035] Among them, Figure 1-Figure 6 As shown, the main flip frame 4 includes a main box body 41, a main shaft 42 and a flywheel housing connection part 43. The main box body 41 is fixedly mounted on the main support inner box 34. The main shaft 42 is rotatably connected to the main box body 41 through a bearing. One end of the main shaft 42 is fixedly connected to the output end of the reducer 72, and the other end is fixedly connected to the flywheel housing connection part 43, so that the rotation of the motor 71 can drive the flywheel housing connection part 43 to rotate. A plurality of flywheel housing connection holes are opened on the flywheel housing connection part 43, and the flywheel housing connection part 43 is set to a semicircular shape. Generally speaking, there are 12 groups or 6 groups of bolt connection holes evenly distributed around the circumference on the flywheel housing, so there are 6 groups of flywheel housing connection holes evenly distributed around the circumference on the flywheel housing connection part 43, and the flywheel housing connection holes are long strip holes so as to be suitable for engines of different models.

[0036] Among them, Figure 1-Figure 6 As shown, the auxiliary flip frame 6 includes an auxiliary box body 61, an auxiliary shaft 62, a ball shaft head connection part 63 and a handwheel turntable 64. The auxiliary box body 61 is fixedly mounted on the auxiliary support inner box 53, and the auxiliary shaft 62 is rotatably connected to the auxiliary box body 61. One end of the auxiliary shaft 62 is fixedly connected to the handwheel turntable 64, and the other end is fixedly connected to the ball shaft head connection part 63. When the engine is connected to the flip frame, the flywheel housing of the engine is first aligned and connected to the flywheel housing connection part 43, and then the ball shaft head connection part 63 is driven to rotate by rotating the handwheel turntable 64 to adjust the ball shaft head connection part 63 so that it can be aligned with the engine ball shaft head. Generally speaking, there are 6 groups of circumferentially evenly distributed bolt connection holes on the engine ball shaft head, so 6 groups of circumferentially evenly distributed ball shaft head connection holes are opened on the ball shaft head connection part 63, and the ball shaft head connection holes are long strip holes so that they can be suitable for engines of different models.

[0037] Among them, Figure 1-Figure 6As shown, an oil collecting box 8 and a jack 9 are also fixedly arranged on the base 1. The oil collecting box 8 is arranged between the lifting main support 3 and the lifting auxiliary support 5. The oil collecting box 8 can collect waste oil therein to avoid oil leakage during engine maintenance and cause the turning frame to be dirty. Four sets of jacks 9 are respectively arranged on the outside of the four corners of the oil collecting box 8, which can help support the engine when needed.

[0038] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An engine tilting stand for construction machinery, characterized in that: The invention comprises a base (1), a sliding mechanism (2), a lifting main support (3), a main turning frame (4), a lifting auxiliary support (5), an auxiliary turning frame (6) and a power mechanism (7), wherein the sliding mechanism (2) is arranged on the base (1), two groups of the sliding mechanisms (2) are respectively arranged at two ends of the base (1), the lifting main support (3) and the lifting auxiliary support (5) are respectively fixedly connected to one group of sliding mechanisms (2), the main turning frame (4) is fixedly mounted on the upper part of the lifting main support (3), the auxiliary turning frame (6) is fixedly mounted on the upper part of the lifting auxiliary support (5), and the power mechanism (7) is fixedly mounted on the lifting main support (3), and the power mechanism (7) is driven to connect to the main turning frame (4).

2. The engine tilting stand for construction machinery according to claim 1, characterized in that: The sliding mechanism (2) comprises a hydraulic cylinder (21), a slide rail (22) and a slider (23); the hydraulic cylinder (21) is fixedly arranged at the bottom of the base (1); the slide rail (22) is fixedly mounted on the upper part of the base (1); a through slot (11) is provided on the base (1); the extended ends of one group of the hydraulic cylinders (21) are fixedly connected to the lifting main support (3) through a connecting block passing through the through slot (11); the extended ends of another group of the hydraulic cylinders (21) are fixedly connected to the lifting auxiliary support (5) through a connecting block passing through the through slot (11); the slider (23) is slidably connected to the slide rail (22); the upper part of the slider (23) of one group of the sliding mechanisms (2) is fixedly mounted with the lifting main support (3); the upper part of the slider (23) of another group of the sliding mechanisms (2) is fixedly mounted with the lifting auxiliary support (5).

3. The engine tilting stand for construction machinery according to claim 2, characterized in that: The lifting main support (3) comprises a main base plate (31), a cylinder (32), a main support shell (33) and a main support inner box (34); the main base plate (31) is fixedly mounted on the upper part of the slider (23); the cylinder (32) is fixedly mounted on the main base plate (31); the main support shell (33) is fixedly mounted on the main base plate (31); the main support inner box (34) is sleeved inside the main support shell (33); the main support inner box (34) is slidably connected to the main support shell (33); the cylinder (32) is arranged inside the main support inner box (34); the protruding end of the cylinder (32) is fixedly connected to the inner wall of the main support inner box (34) through a plate; and the top of the main support inner box (34) is fixedly connected to a main flip frame (4).

4. The engine tilting stand for construction machinery according to claim 2, characterized in that: The lifting auxiliary support (5) comprises an auxiliary base plate (51), an auxiliary support shell (52), an auxiliary support inner box (53), a worm gear screw drive (54) and a hand crank (55); the auxiliary base plate (51) is fixedly mounted on the upper part of the slider (23); the auxiliary support shell (52) is fixedly mounted on the auxiliary base plate (51); the auxiliary support inner box (53) is sleeved inside the auxiliary support shell (52); the auxiliary support inner box (53) is slidably connected to the auxiliary support shell (52); the worm gear screw drive (54) is fixedly mounted on the auxiliary base plate (51); the worm gear screw drive (54) is arranged inside the auxiliary support inner box (53); an output end of the worm gear screw drive (54) is fixedly connected to an inner wall of the auxiliary support inner box (53); and the hand crank (55) is fixedly connected to an input shaft of the worm gear screw drive (54).

5. The engine tilting stand for construction machinery according to claim 4, characterized in that: The main turning frame (4) comprises a main housing (41), a main rotating shaft (42) and a flywheel housing connecting portion (43); the main housing (41) is fixedly mounted on the main supporting inner box (34); the main rotating shaft (42) is rotatably connected to the main housing (41); one end of the main rotating shaft (42) is fixedly connected to the output end of the power mechanism (7); and the other end is fixedly connected to the flywheel housing connecting portion (43); and a plurality of flywheel housing connecting holes are provided on the flywheel housing connecting portion (43).

6. The engine tilting stand for construction machinery according to claim 5, characterized in that: The auxiliary turning frame (6) comprises an auxiliary box body (61), an auxiliary rotating shaft (62), a ball shaft head connecting portion (63) and a hand wheel rotating disk (64); the auxiliary box body (61) is fixedly mounted on the auxiliary supporting inner box (53); the auxiliary rotating shaft (62) is rotatably connected to the auxiliary box body (61); one end of the auxiliary rotating shaft (62) is fixedly connected to the hand wheel rotating disk (64); and the other end is fixedly connected to the ball shaft head connecting portion (63); and a plurality of ball shaft head connecting holes are provided on the ball shaft head connecting portion (63).

7. The engine tilting stand for construction machinery according to claim 6, characterized in that: The flywheel housing connecting hole and the ball shaft head connecting hole are both long holes.

8. The engine tilting stand for construction machinery according to claim 1, characterized in that: An oil receiving box (8) and a jack (9) are also fixedly arranged on the base (1); the oil receiving box (8) is arranged between the lifting main support (3) and the lifting auxiliary support (5); and four groups of jacks (9) are respectively arranged outside the four corners of the oil receiving box (8).