Integral lifting device and method for electromechanical module in narrow space

Abstract

The invention belongs to the technical field of electromechanical module hoisting, and particularly relates to an integral lifting device and method for an electromechanical module in a narrow space. The device comprises a bottom frame, a lifting mechanism and a lifting frame. One end of the lifting frame is connected with the working end of the lifting mechanism, and the other end of the lifting frame overhangs and extends out towards the upper portion of the bottom frame. An electric hoist used for being connected with the electromechanical module is arranged on the lifting frame. The lifting frame is provided with a U-shaped opening with an opening located in the cantilever end, and the electromechanical module can make contact with a building top plate through the U-shaped opening of the lifting frame when being lifted by the electric hoist. Through the U-shaped opening design and the horizontal withdrawing mechanism of the lifting frame, after the electromechanical module is lifted to the top plate to be fixed, the lifting frame can horizontally withdraw from the installed module, and the electric hoist is integrally moved away from a narrow area along with the lifting frame and does not need to be disassembled in a gap. The wall digging and repairing procedures are thoroughly omitted, structural damage is avoided, the construction period is shortened, and labor and material cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electromechanical module hoisting, and particularly relates to a narrow-space electromechanical module overall lifting device and method. BACKGROUND

[0002] When performing overall hoisting operation of large electromechanical modules (such as air conditioning units, air pipe assemblies, pipe modules, etc.) in narrow spaces such as building corridors, special space limitation challenges are faced. The currently commonly used technical solution is to preinstall multiple independent electric hoists on the top plate of the corridor, and fix the electric hoists on the anchorages of the top plate. After the electromechanical module is transported to the position below the installation position, the electric hoists are used to lift and install the electromechanical module to the designed position.

[0003] However, this method has significant disadvantages. Due to the limited width of the corridor, the gap between the side wall of the electromechanical module and the two side walls after the electromechanical module is installed in place is usually very narrow (often only about 20 cm). This makes the operation space reserved between adjacent electromechanical modules or between the module and the wall extremely small. When it is necessary to remove the electric hoists used to lift the module (especially the hoists located between the modules or close to the wall), it is difficult for the operator to perform safe and efficient disassembly operation in such a narrow gap.

[0004] In order to solve the above disassembly problem, the common method at present is to dig a construction opening on the side wall of the corridor. The operator enters the narrow gap from the side through this opening to disassemble the electric hoist. Although this method can solve the problem, it increases two additional construction procedures of digging the hole and repairing the hole; the digging of the hole will cause a certain degree of damage to the wall structure; the hole digging and repairing work prolongs the overall construction period; and increases the labor, material and equipment costs.

[0005] Therefore, it is necessary to develop an electromechanical module overall lifting device and method suitable for narrow spaces, which can ensure safe and efficient lifting and installation of electromechanical modules while completely avoiding the cumbersome process of digging a construction opening on the wall, solving the disassembly problem of electric hoists in narrow gaps, thereby improving construction efficiency, ensuring structural integrity, reducing engineering cost and risk. SUMMARY

[0006] The present application is to solve the problem of difficult disassembly of electric hoists used for hoisting in narrow spaces after installing electromechanical modules in narrow corridors.

[0007] The present application provides the following technical solutions: a narrow space electromechanical module overall lifting device, comprising a chassis, a lifting mechanism and a lifting frame; the lifting mechanism is installed on the chassis, one end of the lifting frame is connected with the working end of the lifting mechanism and the other end is cantilevered upwards from the chassis; the lifting frame is provided with an electric hoist for connecting the electromechanical module; the lifting frame is constructed with a U-shaped opening at the cantilevered end, and the electromechanical module can be lifted by the electric hoist and passed through the U-shaped opening of the lifting frame to reach the roof of the building.

[0008] Further, the lifting frame comprises two support cantilevers, one end of the two support cantilevers is fixed with the working end of the lifting mechanism and the other end is cantilevered upwards from the chassis, a cross beam is connected between the fixed ends of the two support cantilevers, and one electric hoist is arranged on the cantilevered end of each support cantilever, and one electric hoist is arranged centrally on the cross beam.

[0009] Further, the lifting mechanism comprises two lifting units, each lifting unit comprises a vertical column, a lead screw, a sliding block and a torque output module, a vertical guide slot is formed in the vertical column, the lead screw is installed in the vertical guide slot, the upper and lower ends of the lead screw are connected with rotating seats in the vertical column, the sliding block is threadedly combined with the lead screw, and the sliding block is slidingly matched with the vertical guide slot; the support cantilever is fixedly connected with the sliding block; the lower end of the lead screw of one of the lifting units is connected with a first bevel gear, a second bevel gear on the torque output module is engaged with the first bevel gear, and the lead screws of the two lifting units are synchronously rotated through a belt wheel and a belt.

[0010] Further, two sets of bracing mechanisms are arranged in the cavity of the chassis and extend to the left and right sides; The bracing mechanism comprises a middle frame, and one bracing module is connected to the left and right sides of the middle frame; a rotatable bidirectional lead screw is installed in the middle frame, the middle of the bidirectional lead screw is a toothed belt wheel, and the two sides are screw rods with opposite rotation directions; the toothed belt wheels in the two bracing mechanisms are connected through a toothed belt to a torque transmission module; The bracing module comprises a guide rail, a pressing plate and a sliding frame; the sliding frame is slidingly assembled on the middle frame, the sliding frame is threadedly combined with the screw rods of the bidirectional lead screw, the guide rails are located on the left and right sides of the middle frame, a sliding rod is slidingly inserted in the guide rail, the pressing plate is connected to the front end of the sliding rod, and the pressing plate and the sliding frame are connected through a push rod.

[0011] Further, the torque transmission module comprises a third bevel gear, a fourth bevel gear, an input toothed belt wheel and an intermediate shaft; the third bevel gear is coaxially installed on the lead screw with the first bevel gear; the intermediate shaft is installed on an axle seat in the chassis, the fourth bevel gear and the input toothed belt wheel are coaxially installed on the intermediate shaft, the fourth bevel gear is engaged with the third bevel gear, and the input toothed belt wheel and the toothed belt wheels in the two sets of bracing mechanisms are connected through a toothed belt.

[0012] Further, the input toothed pulley and one of the toothed pulleys are located at two ends of the toothed belt, and the other toothed pulley is located at the middle of the toothed belt, rollers are installed on the top surface and the bottom surface of the skid frame at the toothed pulley, and the toothed belt is limited between the rollers and the toothed pulleys to make the toothed belt fully engage with the toothed pulleys.

[0013] Further, the top surface of the base frame is provided with an auxiliary mechanism, and the auxiliary mechanism comprises a dragging module and a slope plate lapped between the dragging module and the ground. The dragging module comprises a support plate, a dragging screw rod and a dragging claw, a linear groove is formed in the top surface of the support plate, the dragging screw rod is rotatably installed in the linear groove, one end of the dragging screw rod is connected with a dragging driving motor, the dragging claw is in sliding contact with the top surface of the support plate, and the dragging claw is fixedly connected with a screw nut on the dragging screw rod.

[0014] Further, the top surface of the support plate is provided with a clamping groove, and the bottom surface of the slope plate is provided with a clamping strip buckled with the clamping groove.

[0015] Further, a diagonal bracing beam is connected between the bottom of the support cantilever and the working end of the lifting mechanism.

[0016] A method for integrally lifting a mechatronic module in a narrow space, which is completed by using the aforementioned lifting device for integrally lifting a mechatronic module in a narrow space and comprises the following steps: S1: the lifting device for integrally lifting a mechatronic module in a narrow space is positioned at the installation position of the mechatronic module, the jacking mechanism is unfolded and supported on the two side walls, and the lifting frame is lifted to contact the building top plate, and the lifting frame is sleeved outside the installation position of the mechatronic module; S2: the mechatronic module is dragged to the front of the slope plate by using a flatbed trailer, the dragging claw of the dragging module is connected with the flatbed trailer to drag the mechatronic module to below the installation position; S3: the electric hoist is lowered to connect the hook with the lifting point on the side surface of the mechatronic module, and the lifting point is located in the upper half of the mechatronic module; S4: the three electric hoists are synchronously wound until the top end of the mechatronic module contacts the building top plate through the U-shaped mouth of the lifting frame, the mechatronic module is fixed on the building top plate, and the connection between the hook and the lifting point is released; S5: the jacking mechanism is separated from the wall, the lifting frame is horizontally withdrawn from the installed mechatronic module, and the lifting device for integrally lifting a mechatronic module in a narrow space is moved to the installation position of the next mechatronic module.

[0017] Compared with the prior art, the advantages of the present application are that: The application provides a narrow space electromechanical module overall lifting device and method, through the U-shaped opening design and horizontal exit mechanism of the lifting frame, the electromechanical module is lifted to the top plate and fixed, the lifting frame can exit horizontally from the installed module, and the electric hoist is removed from the narrow area as a whole, without disassembly operation in the gap.

[0018] The two sets of top support mechanisms built in the base frame drive the sliding frame through bidirectional lead screws, and cooperate with the push rod to push the pressing plate to support the two sides of the wall, form front and rear double-point symmetrical support, and effectively offset the overturning moment in the lifting process; the inclined support beam below the support cantilever further enhances the rigidity of the lifting frame structure, and avoids stress deformation of the overhanging end.

[0019] The lifting frame adopts a cantilever layout, cantilevers upwards from the base frame, reduces the occupation of the ground operation space, the U-shaped opening is towards the cantilever end, ensures that the electromechanical module can directly pass through the U-shaped opening to reach the building top plate when being lifted to the top end, avoids the obstruction of the lifting frame structure to the installation path, and perfectly adapts to the narrow corridor with a width of less than 1.5 m. The top support mechanism can be retracted, the lifting frame can move horizontally with the device when the pushing device moves horizontally as a whole, and the equipment can quickly exit the installed module area after installation, without reserving additional operation space.

[0020] The application realizes "wall hole free construction" in the hoisting of the electromechanical module in the narrow space, significantly improves the construction safety, economy and precision, and provides an efficient solution for the installation of the electromechanical module in narrow scenes such as building corridors and underground pipe corridors. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic view of the narrow space electromechanical module overall lifting device; Figure 2 It is a schematic view of the base frame and the stand column; Figure 3 It is a schematic view of the two lifting units; Figure 4 It is a schematic view of the two sets of top support mechanisms; Figure 5 It is a schematic view of the top support mechanism; Figure 6 It is a schematic view of the auxiliary mechanism; Figure 7 It is a schematic view of the pulling module; Figure 8 It is a schematic view of the inclined plate; Figure 9 It is a schematic view of the narrow space electromechanical module overall lifting device operation; Figure 10 It is a schematic view of the lead screw to the middle shaft speed reduction transmission.

[0022] In the diagram: 1-Base frame; 1.1-Top support mechanism mounting cavity; 1.2-Torque transmission module mounting position; 2-Lifting mechanism; 2.1-Column; 2.2-Lead screw; 2.3-Slider; 2.4-Vertical guide groove; 2.5-First bevel gear; 2.6-Second bevel gear; 2.7-Pulley; 2.8-Belt; 2.9-Motor mounting position; 2.10-Lifting drive motor; 3-Lifting frame; 3.1-Supporting cantilever; 3.2-Crossbeam; 3.3-Diagonal bracing beam; 4-Electric hoist; 5-Electromechanical modules; 6-Top support mechanism; 6.1-Intermediate frame; 6.2-Double-direction lead screw; 6.2.1-Toothed pulley; 6.2.2-Screw; 6.3-Pressure plate; 6.4-Sliding frame; 6.5-Slide rod; 6.6-Toothed belt; 6.7-Push rod; 6.8-Third bevel gear; 6.9-Fourth bevel gear; 6.10-Input toothed pulley; 6.11-Intermediate shaft; 6.12-Shaft seat; 6.13-Guide rail; 6.14-Roller; 7-Drag module; 7.1-Support plate; 7.2-Drag screw; 7.3-Drag claw; 7.4-Drag drive motor; 7.5-Slot; 8-Slope plate; 8.1-Clamping strip; 9-Pulley. Detailed Implementation

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Example 1 like Figure 1 As shown: A lifting device for an electromechanical module in a narrow space includes a base frame 1, a lifting mechanism 2, and a lifting frame 3; the bottom of the base frame 1 is equipped with pulleys 9, and the entire device can be pushed; the lifting mechanism 2 is installed on the base frame 1, one end of the lifting frame 3 is connected to the working end of the lifting mechanism 2, and the other end extends cantilevered above the base frame 1; an electric hoist 4 for connecting the electromechanical module 5 is arranged on the lifting frame 3; the lifting frame 3 has a U-shaped opening located at the cantilevered end, so that when the electromechanical module 5 is lifted by the electric hoist 4, it can reach the building roof through the U-shaped opening of the lifting frame 3.

[0025] like Figure 2 , Figure 3As shown in the figure: the lifting mechanism 2 includes two lifting units, which include a column 2.1, a lead screw 2.2, a sliding block 2.3, and a torque output module, the column 2.1 is provided with a vertical guide groove 2.4, the lead screw 2.2 is installed in the vertical guide groove 2.4, the upper and lower ends of the lead screw 2.2 are connected with rotating seats in the column 2.1, the sliding block 2.3 is threadedly engaged with the lead screw 2.2, and the sliding block 2.3 is in sliding fit with the vertical guide groove 2.4; the support cantilever 3.1 is fixedly connected with the sliding block 2.3; the lower end of the lead screw 2.2 of one of the lifting units is connected with a first bevel gear 2.5, a second bevel gear 2.6 on the torque output module is engaged with the first bevel gear 2.5, and the lead screws 2.2 of the two lifting units are synchronously rotated through a belt wheel 2.7 and a belt 2.8. The precision of the lead screw mechanism is used to convert rotary motion into linear motion. The vertical guide groove 2.4 on the column 2.1 limits the movement track of the sliding block 2.3, ensuring that the sliding block 2.3 only moves in the vertical direction; the lead screws 2.2 of the two lifting units are connected through the belt wheel 2.7 and the belt 2.8, realizing synchronous rotation and ensuring that the lifting frame 3 does not deviate during lifting; the torque output module is engaged with the first bevel gear 2.5 at the lower end of the lead screw 2.2 through the second bevel gear 2.6, power of the torque output module is transmitted to the lead screw 2.2, driving the sliding block 2.3 to lift the lifting frame 3, the torque output module adopts a lifting drive motor 2.10, and the second bevel gear 2.6 is installed on the output shaft of the lifting drive motor 2.10; the lifting drive motor 2.10 is installed in the motor mounting position 2.9 reserved on the column 2.1.

[0026] As shown in the figure: Figure 1 The lifting frame 3 is a cantilever bearing structure, the lifting frame 3 includes two support cantilevers 3.1, one end of the two support cantilevers 3.1 is fixed with the sliding block 2.3 of the lifting mechanism, the other end is cantilevered and extended upwards from the chassis 1, a cross beam 3.2 is connected between the ends of the two support cantilevers 3.1 connected with the lifting mechanism 2, forming a U-shaped opening with the opening facing the cantilevered end, a diagonal bracing beam 3.3 is connected between the support cantilever 3.1 below and the sliding block 2.3 of the lifting mechanism 2, in the vertical direction, the diagonal bracing beam 3.3 is aligned with the support cantilever 3.1, the diagonal bracing beam 3.3 does not occupy the lifting space of the electromechanical module 5, and one electric hoist 4 is arranged at the cantilevered end of each of the two support cantilevers 3.1, and one electric hoist 4 is arranged centrally on the cross beam 3.2.

[0027] The U-shaped mouth of the lifting frame 3 is designed to reserve a top avoiding space for the electromechanical module 5, so as to ensure that the electromechanical module 5 can directly pass through the U-shaped mouth to reach the roof of the building when being lifted to the top end, and avoid the obstruction of the structure of the lifting frame 3 to the installation path; the inclined bracing beam 3.3 forms a triangular stable structure, and transmits the cantilever force of the supporting cantilever 3.1 to the sliding block 2.3, so as to reduce the deflection of the cantilever end and improve the rigidity of the structure. Three electric hoists 4 are arranged on the lifting frame 3, one on each of the cantilever ends of the two supporting cantilevers 3.1 and one in the middle of the cross beam 3.2, which are distributed in a "triangle" shape, so as to realize the balanced force of the electromechanical module 5 through three-point lifting and avoid the inclination of the electromechanical module 5 during lifting.

[0028] As shown in Figure 2 , Figure 4 , Figure 5 : the base frame 1 is the bearing base of the device, and the base frame 1 is reserved with a bracing mechanism installation cavity 1.1 and a torque transmission module installation position 1.2; the two sets of bracing mechanisms 6 are arranged in the bracing mechanism installation cavity 1.1 of the base frame 1 in front and back; the bracing mechanisms 6 extend to the left and right sides to symmetrically support the base frame 1 with the wall as the fulcrum.

[0029] The bracing mechanism 6 comprises a middle frame 6.1, and the middle frame 6.1 is connected with one bracing module on each of the left and right sides; the middle frame 6.1 is internally provided with a rotatable bidirectional screw rod 6.2, the middle of the bidirectional screw rod 6.2 is a toothed belt wheel 6.2.1, and the two sides are screw rods 6.2.2 with opposite rotation directions; the toothed belt wheels 6.2.1 in the two bracing mechanisms 6 are connected with the torque transmission module through a toothed belt 6.6; The bracing module comprises a guide rail 6.13, a pressing plate 6.3 and a sliding frame 6.4; the sliding frame 6.4 is slidingly assembled on the middle frame 6.1, the sliding frame 6.4 is threadedly combined with the screw rods 6.2.2 of the bidirectional screw rod 6.2, the guide rail 6.13 is located on the left and right sides of the middle frame 6.1, a sliding rod 6.5 is slidingly inserted into the guide rail 6.13, the pressing plate 6.3 is connected to the front end of the sliding rod 6.5, and the pressing plate 6.3 and the sliding frame 6.4 are connected through a push rod 6.7.

[0030] When the bidirectional screw rod 6.2 rotates, the screw rods 6.2.2 on the two sides with opposite rotation directions drive the left and right sliding frames 6.4 to move synchronously and reversely, the horizontal movement of the sliding frame 6.4 is converted into the bracing force of the pressing plate 6.3 through the push rod 6.7, and the symmetric support of the two walls is realized; the two sets of bracing mechanisms 6 form a "double-point support plane", and cooperate with the friction force between the pressing plate 6.3 and the wall, so as to effectively offset the overturning moment generated during lifting.

[0031] As shown in Figure 3 , Figure 4As shown: the torque transmission module is arranged in the torque transmission module mounting position 1.2 reserved on the chassis 1, and the torque transmission module comprises a third bevel gear 6.8, a fourth bevel gear 6.9, an input toothed belt pulley 6.10 and an intermediate shaft 6.11; the third bevel gear 6.8 is coaxially installed on the lead screw 2.2 with the first bevel gear 2.5; the intermediate shaft 6.11 is installed on the shaft seat 6.12 in the chassis 1, the fourth bevel gear 6.9 and the input toothed belt pulley 6.10 are coaxially installed on the intermediate shaft 6.11, the fourth bevel gear 6.9 is engaged with the third bevel gear 6.8, and the input toothed belt pulley 6.10 and the toothed belt pulleys 6.2.1 in the two sets of jacking mechanisms 6 are connected through the toothed belt 6.6.

[0032] The input toothed belt pulley 6.10 and one of the toothed belt pulleys 6.2.1 are located at both ends of the toothed belt 6.6, and the other toothed belt pulley 6.2.1 is located in the middle of the toothed belt 6.6. Rollers 6.14 are installed on the slipper 6.4 where the toothed belt pulley 6.2.1 is located on the top surface and the bottom surface of the toothed belt 6.6, and the toothed belt 6.6 is limited between the rollers 6.14 and the toothed belt pulley 6.2.1 to make the toothed belt 6.6 fully engaged with the toothed belt pulley 6.2.1.

[0033] The torque transmission module transmits the power of the lifting mechanism 2 to the intermediate shaft 6.11 through the third bevel gear 6.8 and the fourth bevel gear 6.9, and then drives the toothed belt pulleys 6.2.1 of the two sets of jacking mechanisms 6 to rotate synchronously through the input toothed belt pulley 6.10 and the toothed belt 6.6, realizing the power linkage of lifting and jacking. The rollers 6.14 at the middle toothed belt pulley 6.2.1 limit the toothed belt 6.6 from the top and bottom surfaces to ensure that the engagement depth of the toothed belt 6.6 with the toothed belt pulley 6.2.1 is greater than 2 / 3 of the tooth height, avoiding slipping.

[0034] In this embodiment, the stroke of the sliding block 2.3 on the lead screw 2.2 is greater than the stroke of the slipper 6.4 on the screw rod 6.2.2 of the bidirectional lead screw 6.2; in the lifting and jacking action linkage state, in order to balance the stroke difference, this embodiment lists two ways, such as Figure 10As shown, the first way is to change the speed ratio of the lead screw 2.2 and the bidirectional lead screw 6.2, the lead screw 2.2 is driven to rotate by the lifting drive motor 2.10, the lead screw 2.2 transmits torque to the intermediate shaft 6.11 through the meshing of the third bevel gear 6.8 and the fourth bevel gear 6.9, and then the intermediate shaft 6.11 drives the bidirectional lead screw 6.2 (the toothed belt pulley 6.2.1 meshes with the toothed belt 6.6) to rotate through the input toothed belt pulley 6.10 and the toothed belt 6.6. When the third bevel gear 6.8 is a pinion and the fourth bevel gear 6.9 is a gear, the intermediate shaft 6.11 moves at a reduced speed relative to the lead screw 2.2, and finally the speed of the bidirectional lead screw 6.2 is less than that of the lead screw 2.2, so the moving speed of the sliding frame 6.4 is less than that of the sliding block 2.3, and in unit time, the stroke of the sliding block 2.3 is greater than that of the sliding frame 6.4. The second way is to select different pitches for the screw 6.2.2 of the lead screw 2.2 and the bidirectional lead screw 6.2. The greater the pitch of the lead screw 2.2, the greater the distance the sliding block 2.3 moves per revolution of the lead screw 2.2, and vice versa. According to this rule, the pitch of the lead screw 2.2 is set to be greater than that of the screw 6.2.2 of the bidirectional lead screw 6.2. Then the moving distance of the sliding block 2.3 on the lead screw 2.2 per unit time can be greater than that of the sliding frame 6.4 on the screw 6.2.2.

[0035] As shown in Figure 6 , Figure 7 : the top surface of the chassis 1 is provided with an auxiliary mechanism, which includes a dragging module 7 and a slope plate 8 lapped between the dragging module 7 and the ground; The dragging module 7 includes a support plate 7.1, a dragging lead screw 7.2, and a dragging claw 7.3. The top surface of the support plate 7.1 is provided with a straight recess, and the dragging lead screw 7.2 is rotatably installed in the straight recess. One end of the dragging lead screw 7.2 is connected to a dragging drive motor 7.4, and the dragging claw 7.3 is in sliding contact with the top surface of the support plate 7.1. The dragging claw 7.3 is fixedly connected to a lead screw nut on the dragging lead screw 7.2. The dragging claw 7.3 is provided with a horizontal through slot, and a pull rope is inserted into the horizontal through slot to connect the dragging claw 7.3 with a flatbed trailer at the bottom of the electromechanical module 5. The dragging module 7 can realize stable transfer of the electromechanical module 5 by utilizing the uniform speed and precision of lead screw transmission, and the dragging speed can be adjusted by the motor speed.

[0036] As shown in Figure 8 : the top surface of the support plate 7.1 is provided with a clamping groove 7.5, and the bottom surface of the slope plate 8 is provided with a clamping strip 8.1 that is buckled with the clamping groove 7.5. The buckling structure of the clamping strip 8.1 and the clamping groove 7.5 ensures convenient installation and removal of the slope plate 8.

[0037] Example 2 As shown in Figure 9The method is shown as follows: a narrow space electromechanical module integral lifting method is adopted to complete the following steps by using the narrow space electromechanical module integral lifting device of embodiment 1. S1: the narrow space electromechanical module integral lifting device is positioned at the electromechanical module 5 installation position, the lifting drive motor 2.10 is started, the torque is transmitted to the lifting unit screw rod 2.2 through the second bevel gear 2.6 and the first bevel gear 2.5, the two screw rods 2.2 rotate synchronously through the pulley 2.7 and the belt 2.8, the driving sliding block 2.3 drives the lifting frame 3 to rise until the top of the lifting frame 3 contacts the building top plate, the lifting frame 3 is sleeved outside the electromechanical module 5 installation position; at the same time, the screw rod 2.2 rotates to drive the intermediate shaft 6.11 to rotate through the third bevel gear 6.8 and the fourth bevel gear 6.9, the input toothed pulley 6.10 drives the two-way screw rod 6.2 of the two sets of jacking mechanism 6 to rotate through the toothed belt 6.6, the sliding frame 6.4 slides along the intermediate frame 6.1, the push rod 6.7 pushes the pressing plate 6.3 to extend along the guide rail 6.13, and the pressing plate 6.3 is jacked to the two side walls, so that the device is fixed. S2: the clamping strip 8.1 of the slope plate 8 is buckled into the clamping groove 7.5 of the support plate 7.1 to form a slope from the ground to the dragging module; the electromechanical module 5 is dragged to the front of the slope plate 8 by using a flatbed trailer, the dragging drive motor 7.4 is started, the dragging screw rod 7.2 rotates to drive the dragging claw 7.3 to move forward, the dragging claw 7.3 is connected to the flatbed trailer and moves reversely to drag the electromechanical module 5 to the support plate 7.1 along the slope plate 8 and position the electromechanical module 5 directly below the U-shaped mouth of the lifting frame 3; S3: the three electric hoists 4 are controlled to synchronously lower the hooks, the hooks are connected to the lifting points on the upper half of the side surface of the electromechanical module 5; the upper half lifting point layout avoids the shaking of the electromechanical module 5 during the lifting process, and at the same time enables the part of the electromechanical module 5 above the lifting points to pass through the lifting frame 3; S4: the three electric hoists 4 are synchronously wound until the top end of the electromechanical module 5 contacts the building top plate through the U-shaped mouth of the lifting frame 3, the electromechanical module 5 is fixed to the building top plate, and the connection between the hooks and the lifting points is released; S5: the lifting drive motor 2.10 is started reversely, the two-way screw rod 6.2 of the jacking mechanism 6 rotates reversely, the pressing plate 6.3 is retracted and separated from the wall; the lifting mechanism 2 drives the lifting frame 3 to slightly descend and separate from the top plate, the pushing device is horizontally moved as a whole (the pulley 9 at the bottom of the bottom frame 1 moves the device as a whole horizontally), the lifting frame 3 moves horizontally with the device, the lifting frame 3 exits horizontally from the installed electromechanical module 5, and the narrow space electromechanical module integral lifting device moves to the next electromechanical module 5 installation position.

[0038] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and, while certain embodiments according to the principles set forth herein are shown and described, it is to be understood that the same are not limiting of the scope of the application as it is set forth in the appended claims, and that various modifications are made within the scope of the present application. Therefore, it is contemplated to cover the application as broadly as the written description permits, in order to reflect the true scope of the application.

Claims

1. A lifting device for an electromechanical module in a narrow space, characterized in that: It includes a base frame (1), a lifting mechanism (2) and a lifting frame (3); the lifting mechanism (2) is installed on the base frame (1), one end of the lifting frame (3) is connected to the working end of the lifting mechanism (2), and the other end extends outward from the base frame (1); an electric hoist (4) for connecting the electromechanical module (5) is arranged on the lifting frame (3); the lifting frame (3) is constructed with a U-shaped opening located at the cantilever end, so that when the electromechanical module (5) is lifted by the electric hoist (4), it can reach the building roof through the U-shaped opening of the lifting frame (3).

2. The overall lifting device for electromechanical modules in a narrow space according to claim 1, characterized in that: The lifting frame (3) includes two supporting cantilever arms (3.1). One end of the two supporting cantilever arms (3.1) is fixed to the working end of the lifting mechanism (2), and the other end extends outward from the base frame (1). A crossbeam (3.2) is connected between the fixed ends of the two supporting cantilever arms (3.1). An electric hoist (4) is arranged at the cantilever end of each of the two supporting cantilever arms (3.1), and an electric hoist (4) is arranged in the center on the crossbeam (3.2).

3. The overall lifting device for electromechanical modules in a narrow space according to claim 2, characterized in that: The lifting mechanism (2) includes two lifting units. Each lifting unit includes a column (2.1), a lead screw (2.2), a slider (2.3), and a torque output module. The column (2.1) has a vertical guide groove (2.4). The lead screw (2.2) is installed in the vertical guide groove (2.4). The upper and lower ends of the lead screw (2.2) are connected to the rotating seat in the column (2.1). The slider (2.3) is threadedly engaged with the lead screw (2.2) and the slider (2.3) is slidably engaged with the vertical guide groove (2.4). The support cantilever (3.1) is fixedly connected to the slider (2.3). The lower end of the lead screw (2.2) of one of the lifting units is connected to a first bevel gear (2.5). The second bevel gear (2.6) on the torque output module meshes with the first bevel gear (2.5). The lead screws (2.2) of the two lifting units rotate synchronously through pulleys (2.7) and belts (2.8).

4. The overall lifting device for electromechanical modules in a narrow space according to claim 3, characterized in that: The base frame (1) is provided with two sets of top support mechanisms (6) extending to the left and right sides, and the two sets of top support mechanisms (6) are arranged one in front and one behind. The top support mechanism (6) includes an intermediate frame (6.1), with a top support module connected to each side of the intermediate frame (6.1); a rotatable bidirectional lead screw (6.2) is installed inside the intermediate frame (6.1), with a toothed pulley (6.2.1) in the middle and screws (6.2.2) with opposite directions of rotation on both sides of the bidirectional lead screw (6.2.1); the toothed pulleys (6.2.1) in the two top support mechanisms (6) are connected to the torque transmission module through a toothed belt (6.6); The top support module includes a guide rail (6.13), a pressure plate (6.3), and a sliding frame (6.4). The sliding frame (6.4) is slidably mounted on the intermediate frame (6.1). The sliding frame (6.4) is threadedly engaged with the screw (6.2.2) of the double-acting screw (6.2). The guide rail (6.13) is located on the left and right sides of the intermediate frame (6.1). A slide rod (6.5) is slidably inserted into the guide rail (6.13). The pressure plate (6.3) is connected to the front end of the slide rod (6.5). The pressure plate (6.3) and the sliding frame (6.4) are connected by a push rod (6.7).

5. The overall lifting device for electromechanical modules in a narrow space according to claim 4, characterized in that: The torque transmission module includes a third bevel gear (6.8), a fourth bevel gear (6.9), an input toothed pulley (6.10), and an intermediate shaft (6.11). The third bevel gear (6.8) is coaxially mounted on the lead screw (2.2) with the first bevel gear (2.5). The intermediate shaft (6.11) is mounted on the bearing seat (6.12) inside the base frame (1). The fourth bevel gear (6.9) and the input toothed pulley (6.10) are coaxially mounted on the intermediate shaft (6.11). The fourth bevel gear (6.9) meshes with the third bevel gear (6.8). The input toothed pulley (6.10) and the toothed pulleys (6.2.1) in the two sets of top support mechanisms (6) are connected by a toothed belt (6.6).

6. The overall lifting device for electromechanical modules in a narrow space according to claim 5, characterized in that: The input toothed pulley (6.10) and one of the toothed pulleys (6.2.1) are located at both ends of the toothed belt (6.6), and the other toothed pulley (6.2.1) is located in the middle of the toothed belt (6.6). Rollers (6.14) are installed on the top and bottom surfaces of the toothed belt (6.6) on the sliding frame (6.4) where the toothed pulley (6.2.1) is located. The toothed belt (6.6) is constrained between the roller (6.14) and the toothed pulley (6.2.1) so that the toothed belt (6.6) and the toothed pulley (6.2.1) are fully engaged.

7. The overall lifting device for electromechanical modules in a narrow space according to claim 5, characterized in that: The top surface of the base frame (1) is equipped with an auxiliary mechanism, which includes a drag module (7) and a ramp plate (8) that overlaps the drag module (7) and the ground. The drag module (7) includes a support plate (7.1), a drag screw (7.2), and a drag claw (7.3). The top surface of the support plate (7.1) has a straight groove. The drag screw (7.2) is rotatably installed in the straight groove. One end of the drag screw (7.2) is connected to the drag drive motor (7.4). The drag claw (7.3) slides in contact with the top surface of the support plate (7.1). The drag claw (7.3) is fixedly connected to the screw nut on the drag screw (7.2).

8. The overall lifting device for electromechanical modules in a narrow space according to claim 7, characterized in that: The top surface of the support plate (7.1) has a slot (7.5), and the bottom surface of the ramp plate (8) is provided with a clip (8.1) that engages with the slot (7.5).

9. The overall lifting device for electromechanical modules in a narrow space according to claim 2, characterized in that: A diagonal bracing beam (3.3) is connected between the lower part of the supporting cantilever (3.1) and the working end of the lifting mechanism (2).

10. A method for lifting an electromechanical module as a whole in a narrow space, characterized in that, The following steps are completed using the electromechanical module overall lifting device in a narrow space as described in claim 7: S1: The overall lifting device for the electromechanical module in the narrow space is positioned at the installation location of the electromechanical module (5), the top support mechanism (6) unfolds and supports the two side walls, the lifting frame (3) rises to contact the building roof, and the lifting frame (3) is fitted outside the installation location of the electromechanical module (5); S2: Use a flatbed trailer to move the electromechanical module (5) to the front of the ramp (8), and connect the drag claw (7.3) of the drag module (7) to the flatbed trailer to move the electromechanical module (5) below the installation position; S3: The electric hoist (4) lowers its hook and connects it to the lifting point on the side of the electromechanical module (5). The lifting point is located in the upper part of the electromechanical module (5). S4: The three electric hoists (4) simultaneously rewind until the top of the electromechanical module (5) contacts the building roof through the U-shaped opening of the lifting frame (3), fixing the electromechanical module (5) to the building roof and disconnecting the hook from the lifting point; S5: The top support mechanism (6) separates from the wall, the lifting frame (3) exits horizontally from the installed electromechanical module (5), and the narrow space electromechanical module overall lifting device moves to the installation location of the next electromechanical module (5).

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