CN209922784U

CN209922784U - Lifting device

Info

Publication number: CN209922784U
Application number: CN201920176457.6U
Authority: CN
Inventors: 陈钻钰; 樊景风; 赵剑; 陈根余; 陈焱; 高云峰
Original assignee: Han s Laser Technology Industry Group Co Ltd; Hans Laser Smart Equipment Group Co Ltd
Current assignee: Han s Laser Technology Industry Group Co Ltd; Hans Laser Smart Equipment Group Co Ltd
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2020-01-10
Anticipated expiration: 2029-01-30

Abstract

The utility model provides a lifting device, which comprises a lifting platform, a motor, four lifting fixing seats which are grouped in pairs, and a transmission shaft which is arranged between the two lifting fixing seats of each group and is arranged in each group, wherein one end of each transmission shaft is connected with a rotating shaft of the motor and rotates synchronously; each lifting fixing seat is provided with a driving chain wheel and a driven chain wheel which are arranged in a height difference mode, the driving chain wheels are fixedly connected to corresponding transmission shafts, a closed transmission chain is wound between the driving chain wheel and the driven chain wheels on the same lifting fixing seat, and a lifting traction seat is fixedly connected to the closed transmission chain; the lifting platform is connected through four lifting traction seats. Use the technical scheme of the utility model the lifting device that can solve the supporting component of laser beam machining equipment among the prior art ubiquitous occupation space is big, the cost of manufacture is high, the assembly degree of difficulty is high and the later maintenance is with high costs problem.

Description

Lifting device

Technical Field

The utility model belongs to the technical field of the processing equipment, especially, relate to a lifting device.

Background

At present, a common lifting device, especially a matching component of laser processing equipment, generally adopts motor-driven gears or rack transmission, hydraulic or pneumatic drive guide rail transmission and the like. The two forms are analyzed and compared, the motor drives the gear or the rack for transmission, so that the motor is suitable for occasions with high speed requirement and high transmission or positioning precision requirement, but the motor is complex in structure, large in occupied space, high in manufacturing cost and assembly difficulty, and high in later maintenance cost; the hydraulic or pneumatic drive transmission is suitable for occasions with high speed requirements and high transmission or positioning precision requirements, the structure is complex, the occupied space is large, the manufacturing cost is high, the assembly difficulty is high, the driving source medium has compressibility, the reliability of transmission or positioning can be inevitably influenced, the driving source medium needs to be replaced regularly, and the later maintenance cost is also high. Therefore, the lifting device of the matching component of the laser processing equipment in the prior art generally has the problems of large occupied space, high manufacturing cost, high assembly difficulty and high later maintenance cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a lifting device is provided, aim at solving among the prior art the supporting component's of laser beam machining equipment elevating gear ubiquitous occupation space is big, the cost of manufacture is high, the assembly degree of difficulty is high and the later maintenance cost is high problem.

In order to solve the technical problem, the utility model is realized in such a way that a lifting device comprises a lifting platform, a motor, four lifting fixing seats which are two by two in one group and a transmission shaft which is arranged between the two lifting fixing seats of each group and is arranged in each group, wherein one end of each transmission shaft is connected with a rotating shaft of the motor and synchronously rotates; each lifting fixing seat is provided with a driving chain wheel and a driven chain wheel which are arranged in a height difference mode, the driving chain wheels are fixedly connected to corresponding transmission shafts, a closed transmission chain is wound between the driving chain wheel and the driven chain wheels on the same lifting fixing seat, and a lifting traction seat is fixedly connected to the closed transmission chain; the lifting platform is connected through four lifting traction seats.

Furthermore, an adjusting fixing seat is further arranged on each lifting fixing seat, the adjusting fixing seats are fixedly connected to the lifting fixing seats, installation positions of the adjusting fixing seats can be adjusted on the lifting fixing seats, and the driven chain wheels are rotatably installed on the adjusting fixing seats.

Further, it has a lift sliding seat to lie in two sets of fixed mounting on two lift traction seats with one side, two lift sliding seats set up relatively, all be equipped with the first track and the second track that are the difference in height setting on every lift sliding seat, the elevating platform is two, two relative sides of every elevating platform all are equipped with the installation slide rail, one of them elevating platform can slide on the first track through installation slide rail assembly and installation slide rail on the first track, another elevating platform can slide on the second track through installation slide rail assembly and installation slide rail.

Further, elevating gear still includes the lift guide holder, and every lift fixing base corresponds a lift guide holder, and lift guide holder fixed connection installs the direction wheelset on the lift guide holder on the lift sliding seat, fixedly connected with lift direction track on the lift fixing base, and direction wheelset and the spacing cooperation of direction track and direction wheelset can follow the motion of direction track.

Furthermore, the guide wheel group comprises a top wheel and two oppositely arranged side wheels, the wheel surface of the top wheel is in contact with the top surface of the guide rail, the two side wheels are respectively arranged on two opposite sides of the guide rail, and the wheel surfaces of the two side wheels are in contact with the side surface of the guide rail.

Further, the cross-sectional shapes of the first rail and the second rail perpendicular to the respective central axes are circular, triangular, rectangular, trapezoidal, or regular polygonal.

Further, on same lift fixing base, drive sprocket is a plurality of that set up side by side, and a plurality of drive sprocket homogeneous phase, and driven sprocket is a plurality of that set up side by side with a plurality of drive sprocket one-to-ones, and a plurality of driven sprocket homogeneous phase are the same, all around closed driving chain between every drive sprocket and the corresponding driven sprocket.

Compared with the prior art, the utility model, beneficial effect lies in: compared with the mode of using a gear or a rack for transmission and hydraulic or pneumatic driving of the guide rail in the prior art, the lifting device of the embodiment has the advantages that the requirement on the occupied installation space is smaller, the manufacturing cost of the transmission structure formed by the driving chain wheel, the driven chain wheel and the closed transmission chain is lower, the transmission structure is simpler in form, simpler in assembly process and lower in cost requirement on subsequent maintenance.

Drawings

Fig. 1 is an assembled perspective view of a lifting device according to an embodiment of the present invention;

fig. 2 is a front view of the lifting device according to the embodiment of the present invention;

fig. 3 is a plan view of a lifting device according to an embodiment of the present invention;

FIG. 4 is an enlarged view at A in FIG. 3;

fig. 5 is an assembly structure diagram of the lifting fixing base, the driving sprocket, the driven sprocket, the closed transmission chain and the adjusting fixing base in the lifting device of the embodiment of the present invention.

In the drawings, each reference numeral denotes:

10. a lifting platform; 20. a motor; 21. a motor mounting seat; 30. a lifting fixed seat; 31. a drive sprocket; 32. a driven sprocket; 33. a closed transmission chain; 34. lifting the traction base; 35. adjusting the fixed seat; 36. a lifting movable seat; 37. a guide rail; 38. connecting the mounting blocks; 361. a first track; 362. a second track; 40. a drive shaft; 41. a coupling; 50. a lifting guide seat; 51. a guide wheel set; 511. a top wheel; 512. side wheels.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1 to 5, the lifting device of the present embodiment includes a lifting platform 10, a motor 20, four lifting fixing seats 30 which are grouped two by two, and a transmission shaft 40 which is arranged between the two lifting fixing seats 30 of each group and is arranged in each group, the motor 20 is fixedly installed through a motor installation seat 21, and one end of each transmission shaft 40 is connected with a rotation shaft of the motor 20 and rotates synchronously; moreover, each lifting fixing seat 30 is provided with a driving sprocket 31 and a driven sprocket 32 which are arranged in a height difference mode, the driving sprocket 31 is fixedly connected to a corresponding transmission shaft 40, a closed transmission chain 33 is wound between the driving sprocket 31 and the driven sprocket 32 on the same lifting fixing seat 30, and a lifting traction seat 34 is fixedly connected to the closed transmission chain 33; the lift table 10 is connected by four lift traction shoes 34.

Use this elevating gear, drive sprocket 31 through motor 20 output power and rotate, closed driving chain 33 is around between drive sprocket 31 and driven sprocket 32, closed driving chain 33 drives lift traction seat 34 synchronous motion at the in-process that carries out traction motion, thereby output lift elevating platform 10's lift power, between same group lift fixing base 30, carry out synchronous drive through transmission shaft 40, two motor 20 synchronous working between two sets of lift fixing base 30, like this, elevating platform 10 realizes going up and down (like the lifting direction of the black arrow shown in figure 5) between the difference in height distance between drive sprocket 31 and driven sprocket 32 under four synchronous drives that lift traction seat 34. Compared with the mode of using a gear or rack transmission, hydraulic or pneumatic drive guide rail transmission in the prior art, the lifting device of the embodiment has the advantages that the requirement on the occupied installation space is smaller, the manufacturing cost of the transmission structure formed by the driving chain wheel 31, the driven chain wheel 32 and the closed transmission chain 33 is lower, the transmission structure is simpler in form, simpler in assembly process, and lower in cost requirement on subsequent maintenance.

For convenience of assembly, in the present embodiment, each transmission shaft 40 is a sectional type combined structure, and specifically, between a set of the lifting fixing bases 30, the driving sprocket 31 is connected to one of the lifting fixing bases 30 through a first section of the transmission shaft 40, the other driving sprocket 31 is connected to the other lifting fixing base 30 through a second section of the transmission shaft 40, and then the end of the middle section is connected to the corresponding end of the first section and the corresponding end of the second section through the middle section of the transmission shaft 40 and the shaft coupling 41 respectively at the two ends of the middle section, so as to form the sectional type combined structure transmission shaft 40.

In the present embodiment, each lifting fixing seat 30 is further provided with an adjusting fixing seat 35, wherein the adjusting fixing seat 35 can adjust the distance between the driving sprocket 31 and the driven sprocket 32. Specifically, the adjustment fixing base 35 is fixedly connected to the lifting fixing base 30, the adjustment fixing base 35 can adjust the installation position on the lifting fixing base 30, and the driven sprocket 32 is rotatably installed on the adjustment fixing base 35. In the assembling process, before the closed transmission chain 33 winds the driving sprocket 31 and the driven sprocket 32, the distance between the driven sprocket 32 and the driving sprocket 31 needs to be reduced by adjusting the fixing seat 35, so that the closed transmission chain 33 can be conveniently and rapidly wound around the driving sprocket 31 and the driven sprocket 32, then the closed transmission chain 33 is driven by the adjusting fixing seat 35 to be far away from the driving sprocket 31, and the closed transmission chain 33 can be tensioned around the driving sprocket 31 and the driven sprocket 32.

As shown in fig. 5, the two ends of the closed transmission chain 33 are connected by the connecting and mounting blocks 38, and then the lifting traction base 34 is fixedly connected to the connecting and mounting blocks 38, so that the assembling work of the closed transmission chain 33 and the assembling work of the lifting traction base 34 can be completed more rapidly by the connecting and mounting blocks 38.

As shown in fig. 1 to 4, in the lifting device, two groups of lifting traction seats 34 located on the same side are fixedly provided with one lifting movable seat 36, the two lifting movable seats 36 are arranged oppositely, each lifting movable seat 36 is provided with a first rail 361 and a second rail 362 which are arranged in a height difference manner, two lifting platforms 10 are provided, two opposite side edges of each lifting platform 10 are provided with mounting slide rails, one lifting platform 10 is assembled on the first rail 361 through the mounting slide rails and the mounting slide rails can slide on the first rail 361, and the other lifting platform 10 is assembled on the second rail 362 through the mounting slide rails and the mounting slide rails can slide on the second rail 362. Generally, the top surfaces of the two lifting tables 10 are overlapped, and when the working surface needs to be enlarged, the top surfaces of the two lifting tables 10 are staggered through the sliding between the first rail 361 and the mounting slide rail and the sliding between the second rail 362 and the mounting slide rail, so that the top surfaces of the two lifting tables 10 are spliced and expanded, and the top surface area can be expanded to the sum of the top surfaces of the two lifting tables 10.

Rotate output power and drive elevating platform 10 at motor 20 and realize the in-process that goes up and down, in order to make elevating platform 10 more stable at the lift in-process, therefore, elevating gear still includes lift guide 50, every lift fixing base 30 corresponds a lift guide 50, lift guide 50 fixed connection is on lift sliding seat 36, install direction wheelset 51 on the lift guide 50, fixedly connected with lift direction track 37 on the lift fixing base 30, direction wheelset 51 and direction track 37 limit fit and direction wheelset 51 can follow the motion of direction track 37. Specifically, the guide wheel group 51 includes a top wheel 511 and two side wheels 512 disposed oppositely, a wheel surface of the top wheel 511 contacts with the top surface of the guide rail 37, the two side wheels 512 are disposed at opposite sides of the guide rail 37, respectively, and wheel surfaces of the two side wheels 512 contact with the side surfaces of the guide rail 37. During the lifting movement of the lifting platform 10, the lifting guide seat 50 is lifted synchronously with the lifting movable seat 36, and the top wheels 511 roll on the top surface of the guide rail 37, and the two side wheels 512 roll on the two side surfaces of the guide rail 37, so that the guide rail 37 is clamped by the top wheels 511 and the two side wheels 512, thereby realizing the auxiliary positioning function, and enabling the lifting platform 10 to be more stable during the lifting movement.

In the present embodiment, the cross-sectional shapes of the first track 361 and the second track 362 perpendicular to the respective central axes are circular, triangular, rectangular, trapezoidal or regular polygonal, so that the structural form of the first track 361 and the second track 362 can be more variously selected on the basis of ensuring the structural functions of the first track 361 and the second track 362.

Preferably, in the lifting device of the present embodiment, only one driving sprocket 31 and one driven sprocket 32 are installed on each lifting fixing seat 30, so that the lifting operation for transporting general light articles can be satisfied.

When heavy lifting operation is realized to needs, then must require to export sufficient lift power and guarantee the intensity of closed driving chain 33 and guarantee lifting operation's stability, consequently, in the difference with the other embodiments to heavy lifting operation of this embodiment, on same lift fixing base 30, driving sprocket 31 is a plurality of that set up side by side, and a plurality of driving sprocket 31 are all the same, driven sprocket 32 is a plurality of that set up side by side with a plurality of driving sprocket 31 one-to-one, a plurality of driven sprocket 32 are all the same, all around closed driving chain 33 between every driving sprocket 31 and the corresponding driven sprocket 32. The pull rope strength of the chain is improved through the closed transmission chain 33 in multiple matching, so that the chain strength in the lifting working process is ensured, and the condition that the closed transmission chain 33 is not broken in the lifting conveying process of heavy objects is ensured. The structural forms of the two lifting devices for lifting and conveying the light articles and for lifting and conveying the heavy articles are the same except that the application structures of the chains are different, so that the details are not repeated.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A lifting device is characterized by comprising a lifting platform (10), a motor (20), four lifting fixing seats (30) which are grouped in pairs, and transmission shafts (40) which are arranged between the two lifting fixing seats (30) of each group, wherein one end of each transmission shaft (40) is connected with a rotating shaft of the motor (20) and rotates synchronously;

moreover, each lifting fixing seat (30) is provided with a driving chain wheel (31) and a driven chain wheel (32) which are arranged in a height difference mode, the driving chain wheel (31) is fixedly connected to the corresponding transmission shaft (40), a closed transmission chain (33) is wound between the driving chain wheel (31) and the driven chain wheel (32) on the same lifting fixing seat (30), and a lifting traction seat (34) is fixedly connected to the closed transmission chain (33);

the lifting platform (10) is connected through four lifting traction seats (34).

2. The lifting device as claimed in claim 1, characterized in that each lifting fixing base (30) is further provided with an adjusting fixing base (35), the adjusting fixing base (35) is fixedly connected to the lifting fixing base (30), the adjusting fixing base (35) can be adjusted in installation position on the lifting fixing base (30), and the driven chain wheel (32) is rotatably mounted on the adjusting fixing base (35).

3. The lifting device according to claim 1 or 2, characterized in that two lifting traction seats (34) located on the same side in two groups are fixedly provided with a lifting movable seat (36), the two lifting movable seats (36) are arranged oppositely, each lifting movable seat (36) is provided with a first track (361) and a second track (362) which are arranged in a height difference manner, two lifting platforms (10) are provided, two opposite side edges of each lifting platform (10) are provided with installation slide rails, one of the lifting platforms (10) is assembled on the first rail (361) through the installation slide rail and the installation slide rail can slide on the first rail (361), and the other lifting platform (10) is assembled on the second rail (362) through the installation slide rail and the installation slide rail can slide on the second rail (362).

4. The lifting device according to claim 3, characterized in that the lifting device further comprises lifting guide seats (50), each lifting fixing seat (30) corresponds to one lifting guide seat (50), the lifting guide seats (50) are fixedly connected to the lifting movable seat (36), a guide wheel set (51) is mounted on each lifting guide seat (50), a lifting guide rail (37) is fixedly connected to each lifting fixing seat (30), the guide wheel set (51) is in limit fit with the guide rail (37), and the guide wheel set (51) can move along the guide rail (37).

5. The lifting device as claimed in claim 4, characterized in that the guide wheel set (51) comprises a top wheel (511) and two oppositely disposed side wheels (512), the wheel surface of the top wheel (511) is in contact with the top surface of the guide rail (37), the two side wheels (512) are respectively disposed on opposite sides of the guide rail (37) and the wheel surfaces of the two side wheels (512) are in contact with the side surfaces of the guide rail (37).

6. The lifting device according to claim 3, characterized in that the cross-sectional shape of the first rail (361) and the second rail (362) perpendicular to the respective central axes is circular, triangular, rectangular, trapezoidal or regular polygonal.

7. The lifting device as claimed in claim 1, characterized in that, on the same lifting holder (30), the drive sprockets (31) are arranged in a plurality of rows, and a plurality of drive sprockets (31) are identical, the driven sprockets (32) are arranged in a plurality of rows corresponding to the drive sprockets (31), and a plurality of driven sprockets (32) are identical, and the closed transmission chain (33) is wound between each drive sprocket (31) and the corresponding driven sprocket (32).