CN110759251A

CN110759251A - Lifting mechanism

Info

Publication number: CN110759251A
Application number: CN201911072746.2A
Authority: CN
Inventors: 孟令城
Original assignee: Suzhou Heng Yun Mechanical And Electrical Technology Co Ltd
Current assignee: Nanjing LAFA Environmental Engineering Co., Ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-02-07
Anticipated expiration: 2039-11-05
Also published as: CN110759251B

Abstract

The invention provides a lifting mechanism, in particular to a rail type lifting mechanism which comprises a horizontal component, a vertical component and a mounting component, wherein the horizontal component is assembled below the mounting component, the vertical component is assembled below the horizontal component, the mounting component is connected on a fixed plane, the horizontal component is used for horizontal movement, the vertical component is used for vertical movement, and the whole rail type lifting mechanism is simple in operation, high in safety degree, strong in reliability and high in general value.

Description

Lifting mechanism

Technical Field

The invention relates to the field of lifting, in particular to a lifting mechanism.

Background

The rail type lifting mechanism is one of lifting mechanisms, is an indispensable transport machine in daily production and life, bears the work of transport personnel and goods, and well solves the movement and transfer of precise instruments and special people through the horizontal and vertical spatial motion of the rail type lifting mechanism.

The reliability of the rail-mounted elevator is directly related to the safety of the precise instruments and special crowds, and if the rail-mounted elevator falls, serious property loss can be brought to workshops and enterprises, and even serious casualty can be caused. The conventional rail type elevator is heavy in structure, large in occupied area, very complicated to operate, long-term troubling in production and actual use, and low in reliability in general. Reliability is an important component of a rail-type elevator, and if a rail-type elevator has high performance, the reliability cannot be guaranteed in the using process, and faults often occur, so that the rail-type elevator cannot be accepted by people, and therefore, a good rail-type elevator cannot be calculated. Therefore, there is a need to solve the problem of using the rail-type elevator, and a new rail-type elevator mechanism with high reliability is needed to solve the problem.

Disclosure of Invention

Accordingly, in view of the disadvantages in the related art, examples of the present invention are provided to substantially solve one or more problems due to limitations and disadvantages of the related art, to substantially improve safety and reliability, and to effectively protect equipment.

According to the technical scheme provided by the invention, the invention discloses a lifting mechanism which comprises a horizontal component, a vertical component and a mounting component, wherein the horizontal component is assembled below the mounting component, the vertical component is assembled below the horizontal component, the mounting component is connected to a fixed plane, and the horizontal component is used for action in the horizontal direction and the vertical component is used for action in the vertical direction.

Further, the horizontal component comprises an I-shaped horizontal beam, a movable trolley and a driving body, the driving body is used for driving the movable trolley, the movable trolley can reciprocate in a notch of the I-shaped horizontal beam, notches at two ends of one side of the I-shaped horizontal beam are respectively provided with a cubic seat support, the lower surfaces of the two cubic seat supports are respectively connected with a bearing seat, two bearings are respectively provided with a bearing, a screw rod is erected between the two bearings, a driving nut is connected onto the screw rod and connected with a trolley support, the trolley support is connected onto the movable trolley, the driving body comprises a driving motor, a driving shaft of the driving motor is connected with a coupler, and the coupler is connected with one end of the screw rod.

Further, vertical subassembly includes a lift, is equipped with the connecting plate on the lift, is connected with the lift support on the connecting plate, and the lift support is connected with the dolly board at travelling car middle part, and vertical subassembly can follow the travelling car and move together, and the lift support includes front bezel and back plate, and the dolly board is located between front bezel and the back plate, and a plurality of threaded connection subassembly couples together front bezel, dolly board, back plate.

Furthermore, the number of the mounting assemblies is two, each group of the mounting assemblies comprises two U-shaped supports and a square steel/aluminum beam, the U-shaped supports are assembled on a fixed plane, the two U-shaped supports are arranged in parallel, the square steel/aluminum beam is erected between the two U-shaped supports through fasteners, the square steel/aluminum beam is perpendicular to the I-shaped horizontal beam and is positioned above the I-shaped horizontal beam, the square steel/aluminum beam is fixedly connected with the upper surface of the I-shaped horizontal beam, the upper surface of the cubic seat support is connected to the lower surface of the square steel/aluminum beam through the fasteners, the lower surface of the square steel/aluminum beam is further connected with a motor support, and the driving motor is connected to the lower portion of the motor support through the supporting and blocking column.

Further, the movable trolley comprises a trolley body main shaft, a trolley plate is assembled in the middle of the trolley body main shaft, a thread section is arranged at the end part of the trolley body main shaft, the dovetail groove plate is assembled above the trolley body main shaft, a trolley frame main body is assembled on the dovetail groove plate, wheels are arranged on the trolley frame main body, and the wheels can roll on the bottom surface of a groove opening of the I-shaped horizontal beam.

Further, the trolley support is composed of two metal plates which are 90 degrees, wherein a threaded hole is formed in the lower plate surface of the trolley support, the end part threaded section of the main shaft of the trolley body is matched and connected with the threaded hole in the lower plate surface, two threaded holes are formed in the upper plate surface of the trolley support, two threaded holes are also formed in the bottom of the driving nut, and the threaded hole in the upper plate surface of the trolley support is connected with the threaded hole in the bottom of the driving nut through a fastener.

Furthermore, two sides of the upper part of the U-shaped support are respectively provided with a support lug, the support lug is provided with a connecting hole, and the fastener is assembled on the fixed plane by penetrating through the connecting hole on the support lug.

Furthermore, a stabilizing gasket is arranged between the square steel/aluminum beam and the cubic seat support.

Furthermore, both ends of the screw rod are provided with connecting parts, the length of the connecting part at one end is larger than that of the connecting part at the other end, and the longer connecting part is assembled with the coupler.

Further, elevating system still includes control assembly, and control assembly is used for controlling driving motor's operation, and control assembly includes a control box, is equipped with motor control panel, 12V DC power supply, 24V DC power supply, transfer relay, wireless relay, circuit breaker, radiator in the control box, and the material of control box is polycarbonate.

Furthermore, the surface of the screw rod is provided with a groove which is used for matching with a screw for assembling the coupler.

Drawings

Fig. 1 is a main schematic view of the lifting mechanism of the present invention.

Fig. 2 is a front view of the lifting mechanism of the present invention.

Fig. 3 is a schematic plan view of the elevator mechanism of the present invention.

Fig. 4 is a detailed schematic view of the lifting mechanism of the present invention.

FIG. 5 is a schematic view of the connection of the mobile cart of the present invention.

Fig. 6 is a schematic view of a screw according to the present invention.

Fig. 7 is a schematic view of the drive nut of the present invention.

FIG. 8 is a schematic view of the cart support of the present invention.

FIG. 9 is a schematic view of a cubical seat support of the present invention.

Fig. 10 is a schematic view of the control box of the present invention.

Fig. 11 is a schematic view of an elevator car of the present invention.

FIG. 12 is a schematic view of a U-shaped bracket of the present invention.

Detailed Description

The present invention will be further described with reference to the following specific examples.

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention. The application of the principles of the present invention will be further described with reference to the accompanying drawings and specific embodiments.

The lifting mechanism is a rail type lifting mechanism and can complete actions in two directions of vertical movement and horizontal movement. The elevator which provides vertical motion is connected with the sling which can realize interactive connection with precision instruments and special people through various bearing devices, and the horizontal motion is realized by placing the elevator on a track and using a driving motor.

A main object of the entire lifting mechanism is to secure property and personnel safety, and the weight of precision instruments or special people is placed on the spreader, and thus safety is very important. One obvious safety concern is the ceiling mounted device, the hardware required to be strong enough to support the weight of delicate instruments or special populations, and this risk can be addressed by mounting a highly safe mounting assembly to the ceiling. A further complication is related to the horizontal assembly, the entire lifting mechanism must be able to lift the precision instruments or special persons with a slow and controlled action and to cope with bad conditions such as blackouts, which risk is alleviated with the help of the horizontal assembly of the invention.

The lifting mechanism comprises a horizontal component, a vertical component and a mounting component, wherein the horizontal component is assembled below the mounting component, the vertical component is assembled below the horizontal component, the mounting component is connected to a fixed plane such as a ceiling, a stable metal plate and the like, the horizontal component is used for action in the horizontal direction, and the vertical component is used for action in the vertical direction.

The horizontal movement of the horizontal component is realized through the screw rod system, the assembly difficulty of the movable trolley is greatly simplified through the screw rod system, and the safety of the whole mechanism is also improved.

The horizontal assembly comprises an I-shaped horizontal beam 2, a movable trolley 7 and a driving body, the driving body is used for driving the movable trolley 7, the movable trolley 7 can reciprocate in a notch of the I-shaped horizontal beam 2, notches at two ends of one side of the I-shaped horizontal beam 2 are respectively provided with a cubic seat support 11, the lower surfaces of the two cubic seat supports 11 are respectively connected with a bearing seat 4, a bearing is respectively arranged in the two bearing seats 4, a screw rod 5 is erected between the two bearings, the screw rod 5 is connected with a driving nut 6, the driving nut 6 is connected with a trolley support 9, the trolley support 9 is also connected onto the movable trolley 7, the driving body comprises a driving motor 13, a driving shaft of the driving motor 13 is connected with a coupler 14, and the coupler 14 is connected with one end of the screw rod 5.

The horizontal assembly uses the lead screw 5 to move linearly from the drive motor 13 to the dolly 7. The screw system enables precise position control, and in addition, the screw thread of the screw 5 prevents the precision instruments or special people from moving forward or backward when the driving motor 13 is not in operation, that is, the precision instruments or special people move only when needed. This advantage is mainly due to the use of the lead screw 5 instead of other designs such as chain wheels.

The cubic seat support 11 is machined from a rectangular stainless steel tube, the ends are deburred and cleaned, and a plurality of attachment holes are drilled at designated locations for attachment.

The carriage support 9 connects the travelling carriage 7 to the drive nut 6, the carriage support 9 being an important component, because the travelling carriage 7 is to be moved stably, and therefore the carriage support 9 must transmit the movement firmly. However, any downward force on the travelling carriage 7 cannot be transmitted to the drive nut 6, since this would exert a shearing force on the spindle and could lead to sticking of the threads of the spindle 5 and the drive nut 6. The carriage support 9 is thus firmly fixed to the travelling carriage 7 along the path of movement, but is screwed relatively loosely into the bottom of the drive nut 6, so that the carriage support 9 can be moved subtly in the horizontal direction and downward forces on the travelling carriage 7 are not transmitted to the drive nut 6.

Specifically, the movable trolley 7 comprises a trolley body main shaft, a trolley plate is assembled in the middle of the trolley body main shaft, a thread section is arranged at the end part of the trolley body main shaft, the dovetail groove plate is assembled above the trolley body main shaft, a trolley frame main body is assembled on the dovetail groove plate, wheels are arranged on the trolley frame main body, and the wheels can roll on the bottom surface of a groove opening of the I-shaped horizontal beam 2.

For the trolley support 9, the trolley support 9 is composed of two metal plates which are 90 degrees, and the concrete material can be steel, wherein a threaded hole is formed in the lower plate surface of the trolley support 9, the end part threaded section of the main shaft of the trolley body is matched and connected with the threaded hole in the lower plate surface, two threaded holes are formed in the upper plate surface of the trolley support 9, two threaded holes are also formed in the bottom of the driving nut 6, and the threaded hole in the upper plate surface of the trolley support 9 is connected with the threaded hole in the bottom of the driving nut 6 through a fastener.

The entire horizontal assembly design is thus capable of reliably and safely translating the load horizontally.

The lifting mechanism further comprises a control assembly, the control assembly is used for controlling the operation of the driving motor 13, the control assembly comprises a control box body, a motor control panel 17, a 12V direct-current power supply 18, a 24V direct-current power supply 19, a conversion relay 20, a wireless relay 21, a circuit breaker 22, a radiator 23 and a filter 24 are arranged in the control box body, and the control box body is made of polycarbonate.

The current comes from an alternating current power supply arranged on the periphery, 12V direct current is provided for a motor controller after being converted by a 12V direct current power supply, then a motor control board outputs 12V direct current to a load pole of a conversion relay, and the conversion relay then transmits the current to an opposite armature of the motor so as to switch the polarity of the motor. To operate these wireless relays, a 24 volt dc voltage signal is branched from the source of the 24V dc power supply and connected to respective COM ports on the wireless relays. The wireless relays are bipolar relays, with a 24 volt dc signal transmitted from a normally closed terminal to the power poles of the respective relay, the wireless relays operating through a hand-held wireless remote control that allows current to flow from a normally closed port that sends a 24 volt dc signal to the selected wireless relay to allow current to flow to the motor armature. A circuit breaker is added between the 12V DC power supply and the motor control board to increase protection.

All components are selected to meet the operating voltage and current of the drive motor. The motor is sized according to a conservative estimate of the required torque and will not run at full speed. All the above components are mounted in a polycarbonate housing, which is cooled by a fan of a radiator, a filter is used for filtering gas impurities, a plurality of terminals 9 are also arranged in the control box body, and the working principle and mode of the terminals are not described in detail as the known technology.

The vertical assembly is responsible for vertical movement. The vertical component comprises a lift 10, a connecting plate is arranged on the lift 10, a lift support 8 is connected onto the connecting plate, the lift support 8 is connected with a trolley plate at the middle part of the moving trolley 7, the vertical component can move along with the moving trolley 7, the lift support 8 comprises a front plate and a rear plate, the trolley plate is located between the front plate and the rear plate, and the front plate, the trolley plate and the rear plate are connected through a plurality of threaded connection components.

The lift 10 may be implemented using commercially available lift devices that are widely developed and sold in the market, with built-in safety functions such as overspeed governor, built-in load limit and slack strap sensors for most lifts 10.

The mounting assembly is responsible for assembling whole mechanism to the fixed plane, the quantity of mounting assembly is two sets ofly, every group mounting assembly includes two U type supports 16 and a square steel/aluminium roof beam 1, U type support 16 assembles on the fixed plane, two U type supports 16 parallel arrangement, square steel/aluminium roof beam 1 erects between two U type supports 16 through the fastener, square steel/aluminium roof beam 1 is perpendicular to I type horizontal beam 2 and square steel/aluminium roof beam 1 is located the top of I type horizontal beam 2, square steel/aluminium roof beam 1 and the upper surface fastening of I type horizontal beam 2 connect, the upper surface of cubic seat support 11 passes through the fastener and connects the lower surface at square steel/aluminium roof beam 1, square steel/aluminium roof beam 1 lower surface still is connected with motor support 3, driving motor 13 connects the below at motor support 3 through propping bumping post 15.

For the square steel/aluminum beam 1, 6061 aluminum was chosen because of its strength to weight ratio and wide application in structural applications, and cyclic fatigue would not be a problem. Steel is used instead because it has a higher strength and therefore a better load bearing capacity.

The two sides of the upper part of the U-shaped support 16 are respectively provided with a support lug, the support lug is provided with a connecting hole, and the fastening piece is arranged on the fixing plane in a penetrating way through the connecting hole on the support lug. A stabilizing gasket 12 is arranged between the square steel/aluminum beam 1 and the cubic seat support 11.

Both ends of the screw 5 are provided with connecting parts, wherein the length of the connecting part at one end is greater than that of the connecting part at the other end, and the longer connecting part is assembled with the coupler. The two ends of the screw rod 5 can be inserted into the bearings on the two sides, the surface of the screw rod 5 is provided with a groove, the groove is used for being matched with a screw for assembling the coupler 14, the coupler 14 and a set screw can be deeply embedded into a shaft of the screw rod, and torque can be transmitted more effectively.

In general, the use steps of the lifting mechanism are as follows: connecting the I-shaped horizontal beam with the square steel/aluminum beam; connecting a main shaft of the trolley body to a trolley bracket, and then sliding the movable trolley into a notch of the I-shaped horizontal beam; connecting a motor bracket to the square steel/aluminum beam, and then connecting a driving motor to the motor bracket through a supporting and blocking column; attaching a cubic seat support and stabilizing shims to a square steel/aluminum beam; connecting the bearing block to the cubic seat support, and then assembling the bearing to the bearing block; assembling a driving nut on the screw rod, and then erecting the screw rod between the bearings so that the longer connecting part of the screw rod faces to the position of the driving motor; connecting the trolley bracket to the driving nut; assembling a coupler on a longer connecting part of the screw rod through a screw, and then assembling a driving shaft of a driving motor and the coupler; fastening the U-shaped bracket on the fixed plane; assembling the whole mechanism assembled in the steps on a U-shaped bracket; connecting the trolley board with a connecting part of the lifter; and connecting the control assembly with a driving motor.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a lifting mechanism, lifting mechanism be guide tracked lifting mechanism, guide tracked lifting mechanism include horizontal component, vertical subassembly, installation component, its characterized in that, wherein the horizontal component assembly be in installation component's below, vertical subassembly assemble in horizontal component's below, installation component connect on the fixed plane, horizontal component be used for the action of horizontal direction, vertical subassembly be used for the action of vertical direction.

2. The lifting mechanism as claimed in claim 1, wherein the horizontal assembly comprises an I-shaped horizontal beam (2), a moving trolley (7) and a driving body, the driving body is used for driving the moving trolley (7), the moving trolley (7) can reciprocate in the notch of the I-shaped horizontal beam (2), the notches at two ends of one side of the I-shaped horizontal beam (2) are respectively provided with a cubic seat support (11), the lower surfaces of the two cubic seat supports (11) are respectively connected with a bearing seat (4), a bearing is respectively arranged in the two bearing seats (4), a screw rod (5) is erected between the two bearings, the screw rod (5) is connected with a driving nut (6), and the driving nut (6) is connected with a trolley support (9), dolly support (9) connect in travelling car (7) on, the driving body include a driving motor (13), the drive shaft of driving motor (13) be connected with a shaft coupling (14), shaft coupling (14) with the one end of lead screw (5) link to each other.

3. The lifting mechanism as claimed in claim 1, wherein the vertical assembly comprises a lift (10), the lift (10) is provided with a connecting plate, the connecting plate is connected with a lift support (8), the lift support (8) is connected with a trolley plate in the middle of the mobile trolley (7), the vertical assembly can move along with the mobile trolley (7), the lift support (8) comprises a front plate and a rear plate, the trolley plate is located between the front plate and the rear plate, and the front plate, the trolley plate and the rear plate are connected through a plurality of threaded connection assemblies.

4. A lifting mechanism as claimed in claim 1, characterized in that the number of said mounting assemblies is two, each said mounting assembly comprising two U-shaped brackets (16) and a square steel/aluminium beam (1), said U-shaped brackets (16) being mounted on said fixed plane, said two U-shaped brackets (16) being arranged in parallel, said square steel/aluminium beam (1) being mounted between said two U-shaped brackets (16) by means of fasteners, said square steel/aluminium beam (1) being perpendicular to said i-shaped horizontal beam (2) and said square steel/aluminium beam (1) being located above said i-shaped horizontal beam (2), said square steel/aluminium beam (1) being fastened to the upper surface of said i-shaped horizontal beam (2), the upper surface of said cubic base bracket (11) being connected to said square steel/aluminium beam (1) by means of fasteners The lower surface of the square steel/aluminum beam (1) is also connected with a motor bracket (3), and the driving motor (13) is connected below the motor bracket (3) through a supporting and blocking column (15).

5. The lifting mechanism as claimed in claim 1, wherein the moving trolley (7) comprises a main body shaft, the trolley plate is assembled in the middle of the main body shaft, the end part of the main body shaft is provided with a threaded section, the dovetail groove plate is assembled above the main body shaft, a main frame body is assembled on the dovetail groove plate, and wheels are arranged on the main frame body and can roll on the bottom surface of the notch of the I-shaped horizontal beam (2).

6. The lifting mechanism as claimed in claim 1, wherein the trolley support (9) is formed by two metal plates which are 90 degrees, wherein a lower plate surface of the trolley support (9) is provided with a threaded hole, a threaded section of an end part of the vehicle body spindle is matched and connected with the threaded hole on the lower plate surface, an upper plate surface of the trolley support (9) is provided with two threaded holes, the bottom of the driving nut (6) is also provided with two threaded holes, and the threaded hole on the upper plate surface of the trolley support (9) is connected with the threaded hole on the bottom of the driving nut (6) through a fastener.

7. The lifting mechanism as claimed in claim 1, wherein two sides of the upper portion of the U-shaped bracket (16) are respectively provided with a support lug, the support lug is provided with a connecting hole, a fastener is arranged in the connecting hole of the support lug in a penetrating manner and assembled on the fixing plane, and a stabilizing gasket (12) is arranged between the square steel/aluminum beam (1) and the cubic seat bracket (11).

8. A lifting mechanism according to claim 1, characterized in that the screw (5) has connecting parts at both ends, wherein the length of the connecting part at one end is greater than the length of the connecting part at the other end, the longer connecting part is assembled with the coupling, and the surface of the longer connecting part of the screw (5) is provided with a groove for matching with a screw for assembling the coupling (14).

9. The lifting mechanism according to claim 1, further comprising a control assembly for controlling the operation of the driving motor (13), wherein the control assembly comprises a control box, the control box is internally provided with a motor control board 17, a 12V DC power supply (18), a 24V DC power supply (19), a transfer relay (20), a wireless relay (21), a circuit breaker (22) and a heat sink (23), and the control box is made of polycarbonate.

10. A method of using a lifting mechanism as claimed in any one of claims 1 to 9, wherein the lifting mechanism is used in the steps of:

A. connecting the I-shaped horizontal beam with the square steel/aluminum beam;

B. connecting a main shaft of the trolley body to a trolley bracket, and then sliding the movable trolley into a notch of the I-shaped horizontal beam;

C. connecting a motor bracket to the square steel/aluminum beam, and then connecting a driving motor to the motor bracket through a supporting and blocking column;

D. attaching a cubic seat support and stabilizing shims to a square steel/aluminum beam;

E. connecting the bearing block to the cubic seat support, and then assembling the bearing to the bearing block;

F. assembling a driving nut on the screw rod, and then erecting the screw rod between the bearings so that the longer connecting part of the screw rod faces to the position of the driving motor;

G. connecting the trolley bracket to the driving nut;

H. assembling a coupler on a longer connecting part of the screw rod through a screw, and then assembling a driving shaft of a driving motor and the coupler;

I. fastening the U-shaped bracket on the fixed plane;

J. assembling the whole mechanism assembled in the steps A-H on a U-shaped bracket;

K. connecting the trolley board with a connecting part of the lifter;

and L, connecting the control assembly with a driving motor.