Hoisting equipment for repairing and maintaining engine

Abstract

The utility model relates to engine maintenance hoisting equipment which comprises a bottom plate, universal wheels, a suspension mechanism and a positioning mechanism, and is technically characterized in that a first bearing pack is fixed in the middle of the upper surface of the bottom plate, a concentric rotating drum is supported by the first bearing pack, a connecting drum is arranged in the lower part of the concentric rotating drum, and the lower end of the connecting drum penetrates through the bottom plate and is fixedly connected with a flange; a second bearing set is arranged between the lower surface of the bottom plate and the connecting flange. The suspension mechanism comprises a lifting cylinder fixed in the concentric rotary drum, a horizontal cantilever fixed to the upper end of a cylinder rod of the lifting cylinder, a linear module arranged on a long arm of the horizontal cantilever, a lifting hook connected with a sliding block of the linear module, and a balancing weight connected with a short arm of the horizontal cantilever. The equipment does not need to be matched with other equipment, time and labor are saved, the maintenance cost is saved, and meanwhile, the maintenance safety is remarkably improved.

Description

Technical Field

[0001] The utility model relates to engine maintenance auxiliary equipment, in particular to engine maintenance and hoisting equipment. Background Art

[0002] An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines, external combustion engines, jet engines, electric motors, etc. For example, internal combustion engines usually convert chemical energy into mechanical energy. The engine is applicable to both power generation devices and the entire machine including the power device. When the engine is repaired in the later stage, it needs to be placed on the workbench for maintenance with lifting equipment, and the lifting equipment is also needed to adjust the position of the engine.

[0003] For example, CN 220575852 U discloses an engine maintenance auxiliary tool, which includes a base, a support frame fixedly connected to the top of the base near the side wall, a suspension mechanism fixedly connected to the top of the support frame, and a lifting and adjusting mechanism fixedly connected to the top of the base near the support frame. The tool is provided with a lifting and adjusting mechanism, so that it can lift and adjust the engine to different heights, which is convenient for the staff to operate during maintenance. At the same time, a suspension mechanism is provided on the side, so that the staff can suspend the engine when repairing the bottom of the engine, which is intended to facilitate the staff to repair the engine. However, the following problems still exist during use: 1. The suspension mechanism can only suspend the engine on the lifting plate, and the process of the engine reaching the lifting plate requires manual or other lifting equipment to lift and carry; 2. The engine position is lifted by the suspension mechanism to repair the bottom of the engine, that is, the staff performs maintenance work under the engine, which is poor in safety. Utility Model Content

[0004] The purpose of the utility model is to provide an engine maintenance and lifting equipment with a reasonable structure and reliable use to solve the above-mentioned problems, which does not require the cooperation of other equipment, saves time and effort, saves maintenance costs, and at the same time, significantly enhances the safety of maintenance.

[0005] The technical solution of the utility model is:

[0006] An engine maintenance and hoisting device comprises a base plate, universal wheels arranged at four corners of the lower surface of the base plate, a suspension mechanism and a positioning mechanism arranged above the base plate, and the technical key points are: a first bearing group is fixed in the middle of the upper surface of the base plate and the concentric rotating cylinder is supported by the first bearing group, a connecting cylinder is built in the lower part of the concentric rotating cylinder, the lower end of the connecting cylinder passes through the base plate and is fixed with a connecting flange, a second bearing group is arranged between the lower surface of the base plate and the connecting flange, the suspension mechanism comprises a lifting cylinder fixed in the concentric rotating cylinder, a horizontal cantilever fixed to the upper end of the cylinder rod of the lifting cylinder, a linear module arranged on the long arm of the horizontal cantilever, a hook connected to the slider of the linear module, and a counterweight connected to the short arm of the horizontal cantilever, and the positioning mechanism comprises two support plates fixed at intervals on the upper surface of the base plate, a concentric rotating shaft arranged relatively on the two support plates, a positioning plate fixed on the concentric rotating shaft, and a plurality of horizontal connecting rods movably connected between the two positioning plates, each horizontal connecting rod is evenly distributed around the center line of the concentric rotating shaft, and the positioning plate and the horizontal connecting rods surround to form a support cage for the engine.

[0007] In the above-mentioned engine maintenance and lifting equipment, a motor reducer is inverted on the bottom plate, a driving gear is fixed to the lower end of the output shaft of the motor reducer, and a gear ring meshing with the driving gear is provided on the outer peripheral surface of the connecting flange.

[0008] The above-mentioned engine repair and maintenance hoisting equipment has a longitudinal slide groove on the side of the concentric rotating drum, a longitudinal slide rail matching the longitudinal slide groove is provided on the counterweight block, and a horizontal limit plate corresponding to the lower end of the longitudinal slide groove is provided at the lower part of the concentric rotating drum.

[0009] The above-mentioned engine repair and maintenance lifting equipment, the outer circumferential surface of the positioning plate is provided with U-shaped connecting grooves corresponding to the horizontal connecting rods one by one, the two ends of the horizontal connecting rod pass through the U-shaped connecting grooves of the two positioning plates, the outer circumferential surface of the positioning plate is provided with a pressure cover corresponding to the U-shaped connecting groove, the inner side of the pressure cover is provided with a radial protrusion for squeezing the horizontal connecting rod, and the horizontal connecting rod is provided with locking nuts located on both axial sides of the U-shaped connecting groove.

[0010] In the above-mentioned engine maintenance and lifting equipment, a plurality of axial through holes are evenly arranged on the end surface of the positioning plate, and a limiting rod for inserting into the axial through hole of the positioning plate is arranged on the support plate.

[0011] The beneficial effects of the utility model are:

[0012] 1. When in use, the engine to be repaired is suspended on the positioning mechanism of the equipment using the suspension mechanism of the equipment, and then the positioning mechanism is used to change the angle of the engine, so that the staff can repair various positions of the engine. In this process, no other equipment is required, which saves time and effort, and saves maintenance costs. In addition, the staff does not need to work at the bottom of the engine, which significantly enhances the safety of maintenance.

[0013] 2. The suspension mechanism has the functions of lifting and lowering, changing the horizontal position, and rotating, which is convenient for taking and placing engines in different directions and positions. It is flexible to use and has high work efficiency.

[0014] 3. The counterweight and hook are arranged at both ends of the horizontal cantilever. The counterweight prevents the equipment from tipping over during lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 yes Figure 1 Left view of

[0017] Figure 3 yes Figure 1 Enlarged view of part A in the middle;

[0018] Figure 4 yes Figure 2 Enlarged view of part B in the middle.

[0019] In the figure: 1. hook, 2. horizontal cantilever, 3. linear module, 4. lifting cylinder, 5. counterweight, 6. concentric rotating cylinder, 7. horizontal limit plate, 8. motor reducer, 9. bottom plate, 10. universal wheel, 11. driving gear, 12. connecting flange, 13. connecting cylinder, 14. second bearing group, 15. first bearing group, 16. support plate, 17. horizontal connecting rod, 18. limit rod, 19. gear ring, 20. pressure cover, 21. locking nut, 22. positioning plate, 23. axial through hole, 24. concentric rotating shaft. DETAILED DESCRIPTION

[0020] The utility model is described in detail according to the accompanying drawings of the specification.

[0021] like Figure 1-Figure 4 As shown, the engine maintenance hoisting equipment includes a base plate 9, universal wheels 10 arranged at the four corners of the lower surface of the base plate 9, and a suspension mechanism and a positioning mechanism arranged above the base plate 9.

[0022] Among them, a first bearing group 15 is fixed in the middle of the upper surface of the bottom plate 9 and the concentric rotating drum 6 is supported by the first bearing group 15. A connecting cylinder 13 is built in the lower part of the concentric rotating drum 6. The lower end of the connecting cylinder 13 passes through the bottom plate 9 and is fixed with a connecting flange 12. A second bearing group 14 is provided between the lower surface of the bottom plate 9 and the connecting flange 12. In this embodiment, a motor reducer 8 is inverted on the bottom plate 9, a driving gear 11 is fixed to the lower end of the output shaft of the motor reducer 8, and a gear ring 19 meshing with the driving gear 11 is provided on the outer peripheral surface of the connecting flange 12.

[0023] The suspension mechanism includes a lifting cylinder 4 fixed in the concentric rotating cylinder 6, a horizontal cantilever 2 fixed to the upper end of the cylinder rod of the lifting cylinder 4, a linear module 3 provided on the long arm of the horizontal cantilever 2, a hook 1 connected to the slider of the linear module 3, and a counterweight 5 connected to the short arm of the horizontal cantilever 2. In this embodiment, a longitudinal slide groove is provided on the side of the concentric rotating cylinder 6, a longitudinal slide rail matching the longitudinal slide groove is provided on the counterweight 5, and a horizontal limit plate 7 corresponding to the lower end of the longitudinal slide groove is provided at the lower part of the concentric rotating cylinder 6.

[0024] The positioning mechanism includes two support plates 16 fixed to the upper surface of the bottom plate 9 at intervals, concentric shafts 24 arranged relatively on the two support plates 16, positioning plates 22 fixed on the concentric shafts 24, and 8 horizontal connecting rods 17 movably connected between the two positioning plates 22. Each horizontal connecting rod 17 is evenly distributed around the center line of the concentric shaft 24, and the positioning plates 22 and the horizontal connecting rods 17 surround and form a support cage for the engine. In this embodiment, the outer peripheral surface of the positioning plate 22 is provided with a U-shaped connecting groove corresponding to the horizontal connecting rod 17, and the two ends of the horizontal connecting rod 17 pass through the U-shaped connecting grooves of the two positioning plates 22. A pressure cover 20 corresponding to the U-shaped connecting groove is provided on the outer peripheral surface of the positioning plate 22, and a radial protrusion for squeezing the horizontal connecting rod 17 is provided on the inner side of the pressure cover 20, and a locking nut 21 is provided on the horizontal connecting rod 17 on both axial sides of the U-shaped connecting groove. A plurality of axial through holes 23 are evenly arranged on the end surface of the positioning disk 22 , and a limiting rod 18 for inserting into the axial through hole 23 of the positioning disk 22 is arranged on the support plate 16 .

[0025] Working principle:

[0026] 1. Move the equipment to the place where the engine to be repaired or maintained is located, then start the motor reducer 8, use the active gear 11 to drive the gear ring 19, connecting flange 12, connecting cylinder 13, concentric rotating cylinder 6, lifting cylinder 4, horizontal cantilever 2, linear module 3 and hook 1 to rotate synchronously, so that the hook 1 reaches the top of the engine, use the sling to connect the engine and the hook 1, start the lifting cylinder 4, drive the engine to the set height, and then start the motor reducer 8 to drive the engine to the top of the support cage of the positioning mechanism. The horizontal connecting rod 17 on the upper part of the support cage is removed in advance, and the engine is reinstalled and clamped after the engine is seated in it.

[0027] 2. According to the position of the engine to be repaired or maintained, the support cage is rotated to change the angle of the engine, and the limiting rod 18 is inserted into the axial through hole 23 of the positioning plate 22 to achieve positioning.

[0028] The above is a detailed description of the embodiments of the utility model, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the invention of the utility model should still fall within the scope of this patent.

Claims

1. An engine maintenance hoisting device, comprising a base plate, universal wheels arranged at four corners of the lower surface of the base plate, a suspension mechanism and a positioning mechanism arranged above the base plate, characterized in that: The cam is secured to the bottom of the base plate and is secured to a position 46° about the base plate, the cam being secured to the bottom of the base plate and being secured to the bottom of the base plate.

2. The engine maintenance hoisting equipment according to claim 1, characterized in that: A motor reducer is inverted on the bottom plate, a driving gear is fixed to the lower end of the output shaft of the motor reducer, and a gear ring meshing with the driving gear is provided on the outer peripheral surface of the connecting flange.

3. The engine maintenance and hoisting equipment according to claim 1, characterized in that: A longitudinal slide groove is provided on the side of the concentric rotating cylinder, a longitudinal slide rail cooperating with the longitudinal slide groove is provided on the counterweight block, and a horizontal limit plate corresponding to the lower end of the longitudinal slide groove is provided at the lower part of the concentric rotating cylinder.

4. The engine maintenance hoisting equipment according to claim 1, characterized in that: The outer circumference of the positioning plate is provided with U-shaped connecting grooves corresponding to the horizontal connecting rods one by one, and the two ends of the horizontal connecting rod pass through the U-shaped connecting grooves of the two positioning plates. A pressure cover corresponding to the U-shaped connecting groove is provided on the outer circumference of the positioning plate, and a radial protrusion for squeezing the horizontal connecting rod is provided on the inner side of the pressure cover. The horizontal connecting rod is provided with locking nuts located on both axial sides of the U-shaped connecting groove.

5. The engine maintenance and hoisting equipment according to claim 1, characterized in that: A plurality of axial through holes are evenly arranged on the end surface of the positioning disk, and a limiting rod for inserting into the axial through hole of the positioning disk is arranged on the support plate.

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