Multi-shaft type lifting platform

Abstract

The utility model relates to the technical field of lifting platforms, and provides a multi-shaft type lifting platform which comprises a rack, a plurality of lead screw lifters, a multi-output speed reducer, a motor, a lifting plate and a plurality of connectors. The lifting plate is fixedly arranged between the output ends of the multiple lead screw lifters. The connector comprises a first split body and a second split body, and the first split body is arranged on one of the input end of the lead screw lifter and the output end of the multi-output speed reducer in a sliding mode; the second split body is fixedly arranged on the other one of the input end of the lead screw lifter and the output end of the multi-output speed reducer, and the first split body is selectively connected with the second split body in a clamped mode. According to the lifting platform, the first split body and the second split body are arranged and selectively clamped, so that the input end of the lead screw lifter and the output end of the multi-output speed reducer can be quickly disassembled and assembled, and the installation and maintenance efficiency of the lifting platform is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting platforms, in particular to a multi-axis lifting platform. Background Art

[0002] The lifting platform is a kind of lifting and conveying equipment, which has been widely used in factories, warehousing and logistics and other fields. The lifting platform can be divided into scissor lifts, cylinder lifts and screw lifts according to different principles. For screw lifts, in order to improve their load performance, they are usually set as multi-axis lifts driven by multiple screws.

[0003] The utility model with patent publication number CN211110841U discloses an H-type worm gear screw lifting work platform, comprising: a working platform body, a frame, a lifting device, a lifting plate, a driving motor, a worm gear screw lifter, and a steering box; a frame is arranged on the working platform body; a lifting device is arranged on the upper part of the frame; a lifting plate is arranged on the upper side of the lifting device; a driving motor is arranged at the center of the lifting device; a steering box is arranged on the front side of the driving motor; a connecting rod is arranged on one side of the steering box, and the connecting rod is connected to the steering box through a coupling; the utility model improves an H-type worm gear screw lifting work platform, has a reasonable structural design, only uses one driving motor to complete the drive, and four worm gear screw lifts are used in combination to form a platform that can be lifted and lowered at the same time, thereby ensuring the stability of the lifting platform, thereby effectively solving the problems and shortcomings of the existing device.

[0004] In the above technical solution, in order to allow the driving motor to drive multiple screws to lift and lower at the same time, a connecting rod and a coupling are set between the worm gear lift and the steering box. However, during the installation and maintenance of the lifting work platform, it is usually necessary to disassemble and assemble the worm gear lift and the steering box one by one. The setting of the coupling will make the disassembly and assembly operation of the worm gear lift more cumbersome, which is not conducive to improving the installation and maintenance efficiency of the lifting work platform. Utility Model Content

[0005] In view of this, the utility model proposes a multi-axis lifting platform, which can realize the rapid disassembly and assembly of the screw lifter and the multi-output reducer, and improve the installation and maintenance efficiency of the lifting platform.

[0006] The technical solution of the utility model is implemented as follows: The utility model provides a multi-axis lifting platform, including a frame, a plurality of screw lifters, a multi-output reducer, a motor, a lifting plate and a plurality of connectors, wherein:

[0007] The screw lifter, the multi-output reducer and the motor are all fixedly arranged on the frame, and the output end of the motor is fixedly connected to the input end of the multi-output reducer, and the output end of the multi-output reducer corresponds to the input end of the screw lifter one by one and is coaxially arranged;

[0008] The lifting plate is fixedly arranged between the output ends of the plurality of screw lifters;

[0009] The connector includes a first part and a second part, wherein:

[0010] The first split body is slidably arranged on one of the input end of the screw lifter and the output end of the multi-output reducer;

[0011] The second split body is fixedly arranged on the other of the input end of the screw lifter and the output end of the multi-output reducer, and the first split body is selectively engaged with the second split body.

[0012] On the basis of the above technical solution, preferably, the first split body includes a first cylinder, a slide cylinder and a first limit block, and the second split body includes a second cylinder and a second limit block, wherein:

[0013] The first cylinder and the second cylinder are respectively fixedly arranged on the output end of the multi-output reducer or the input end of the screw lifter;

[0014] The slide cylinder is slidably disposed on the first cylinder, and its sliding direction is parallel to the axial direction of the output end of the multi-output reducer;

[0015] The first limit block is fixedly arranged on one end of the slide cylinder close to the second cylinder;

[0016] The second limiting block is fixedly arranged at one end of the second cylinder body close to the first cylinder body, and the first limiting block is selectively engaged with the second limiting block.

[0017] More preferably, a slot is provided on the peripheral side of the first limit block;

[0018] The second split body further includes a reinforcing protrusion, which is fixedly disposed on the second limiting block and selectively engaged with the clamping groove, and a length direction of the reinforcing protrusion is perpendicular to an axial direction of the first cylinder.

[0019] More preferably, the first split body further comprises a spring, one end of the spring abuts against a side of the slide cylinder away from the second limit block.

[0020] More preferably, a threaded hole is provided on the circumference of the first cylinder;

[0021] The first split body further includes a top screw, which is connected to the threaded hole through threaded cooperation and selectively abuts against a side of the slide cylinder close to the second limit block to separate the first limit block from the second limit block.

[0022] On the basis of the above technical solution, preferably, four screw lifters are arranged in a rectangular manner;

[0023] The multi-output reducer includes a primary reducer and two secondary reducers, the primary reducer and the secondary reducer are both fixedly arranged on the frame, the primary reducer includes two output ends and one input end, the secondary reducer includes two output ends and two input ends, and the input end of the primary reducer is coaxially fixedly connected to the output end of the motor, the two output ends of the primary reducer are respectively coaxially fixedly connected to one of the input ends of the two secondary reducers, and the output end of the secondary reducer is coaxially fixedly connected to the input end of the screw lifter.

[0024] More preferably, the primary reducer comprises a reducer housing, two reducer output shafts, a reducer input shaft and a bevel gear, wherein:

[0025] The reducer housing is fixedly arranged on the frame;

[0026] The output shaft of the reducer is rotatably arranged on the reducer housing, and the two output shafts of the reducer are coaxial and fixedly connected;

[0027] The reducer input shaft is rotatably arranged on the reducer housing and is coaxially fixedly connected with the output end of the motor, and the reducer input shaft is perpendicular to the reducer output shaft;

[0028] A bevel gear is fixedly disposed on one of the reducer output shafts and the reducer input shaft, respectively, and the two bevel gears are meshed with each other.

[0029] More preferably, the two-stage reducer includes a reducer housing, two reducer output shafts, two reducer input shafts and a bevel gear, wherein:

[0030] The reducer housing is fixedly arranged on the frame;

[0031] The output shaft of the reducer is rotatably arranged on the reducer housing, and the two output shafts of the reducer are coaxial and fixedly connected;

[0032] The reducer input shaft is rotatably arranged on the reducer housing, and the two reducer input shafts are coaxial and spaced apart and perpendicular to the reducer output shaft;

[0033] One of the reducer output shafts and two of the reducer input shafts are respectively fixedly provided with a bevel gear, and the bevel gears on the reducer output shafts are respectively meshed with the other two bevel gears.

[0034] More preferably, the screw lifter comprises a lifter housing, a worm, an internal threaded sleeve, a worm wheel and a screw, wherein:

[0035] The lifter housing is fixedly arranged on the frame;

[0036] The worm and the internal threaded sleeve are both rotatably arranged on the lifter housing, and the center lines of the two are perpendicular to each other. The worm corresponds to the output shaft of the reducer one by one. The first split body is fixedly arranged on the worm, and the second split body is fixedly arranged on the output shaft of the reducer. The worm and the output shaft of the reducer are selectively coaxially fixedly connected through the cooperation of the first split body and the second split body.

[0037] The worm wheel is fixedly arranged on the internal thread sleeve and meshes with the worm;

[0038] The screw rod passes through the internal threaded sleeve and is connected thereto by threaded cooperation. The screw rod is arranged in a vertical direction, and the top end thereof is fixedly connected to the lifting plate.

[0039] More preferably, the primary reducer and the two secondary reducers are spaced apart along the center line of the frame.

[0040] The multi-axis lifting platform of the utility model has the following beneficial effects compared with the prior art:

[0041] (1) By providing the first split body and the second split body, and utilizing the selective clamping of the two, the input end of the screw lifter and the output end of the multi-output reducer can be quickly disassembled and assembled, thereby improving the installation and maintenance efficiency of the lifting platform;

[0042] (2) By providing a spring, a reinforcement protrusion and a card slot, the fixing strength of the first sub-body and the second sub-body can be improved, and the two can be prevented from being separated due to vibration during the card connection process, thereby improving the card connection strength of the connector;

[0043] (3) By setting a top screw, the slide cylinder can be limited so that the first sub-body and the second sub-body remain in a separated state, thereby meeting the needs of different use conditions of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 It is a three-dimensional diagram of a multi-axis lifting platform of the utility model;

[0046] Figure 2 It is a three-dimensional diagram of a multi-output reducer in a multi-axis lifting platform of the utility model;

[0047] Figure 3 It is an exploded diagram of a connector in a multi-axis lifting platform of the utility model;

[0048] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0049] Figure 5 It is a three-dimensional diagram of the connector when the top screw abuts against the slide cylinder in a multi-axis lifting platform of the utility model;

[0050] Figure 6 It is a cross-sectional view of a primary reducer in a multi-axis lifting platform of the utility model;

[0051] Figure 7 It is a cross-sectional view of a two-stage speed reducer in a multi-axis lifting platform of the utility model;

[0052] Figure 8 It is a three-dimensional diagram of the internal structure of a screw lifter in a multi-axis lifting platform of the utility model.

[0053] Wherein: 1. frame; 2. screw lifter; 21. lifter housing; 22. worm; 23. internal threaded sleeve; 24. worm wheel; 25. screw; 3. multi-output reducer; 31. primary reducer; 311. reducer housing; 312. reducer output shaft; 313. reducer input shaft; 314. bevel gear; 32. secondary reducer; 4. motor; 5. lifting plate; 6. connector; 61. first split body; 611. first cylinder; 612. slide cylinder; 613. first limit block; 614. spring; 615. top screw; 62. second split body; 621. second cylinder; 622. second limit block; 623. reinforcement protrusion; 601. slot; 602. threaded hole. DETAILED DESCRIPTION

[0054] The following will be combined with the specific implementation of the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0055] like Figure 1-8 As shown, a multi-axis lifting platform of the utility model includes a frame 1, a plurality of screw lifters 2, a multi-output reducer 3, a motor 4, a lifting plate 5 and a plurality of connectors 6.

[0056] The frame 1 is used to carry other components, and the frame 1 is usually designed as a rectangular frame structure.

[0057] The screw lifter 2 and the multi-output reducer 3 are transmission mechanisms, which are used to convert the rotation of the output shaft of the motor 4 into vertical power to drive the lifting plate 5 to move up and down. The screw lifter 2, the multi-output reducer 3 and the motor 4 are all fixedly arranged on the frame 1, and the output end of the motor 4 is fixedly connected to the input end of the multi-output reducer 3, and the output end of the multi-output reducer 3 corresponds to the input end of the screw lifter 2 one by one and is coaxially arranged.

[0058] The lifting plate 5 is used to carry goods. The lifting plate 5 is fixedly arranged between the output ends of multiple screw lifters 2. Multiple screw lifters 2 drive the lifting plate 5 to rise and fall simultaneously, so that the lifting platform forms a multi-axis structure, which can improve the load performance and lifting stability of the lifting platform.

[0059] The connector 6 is used to connect the screw lifter 2 and the multi-output reducer 3. The connector 6 includes a first split body 61 and a second split body 62, wherein the first split body 61 is slidably arranged on one of the input end of the screw lifter 2 and the output end of the multi-output reducer 3; the second split body 62 is fixedly arranged on the other of the input end of the screw lifter 2 and the output end of the multi-output reducer 3, and the first split body 61 is selectively engaged with the second split body 62, that is, the first split body 61 can be engaged with the second split body 62 by sliding the first split body 61, so that the output end of the multi-output reducer 3 is fixedly connected to the input end of the screw lifter 2, so that the motor 4 can drive the input end of the screw lifter 2 to rotate, and the first split body 61 can also be quickly separated from the second split body 62 by sliding the first split body 61, so as to disassemble and maintain the screw lifter 2 or the multi-output reducer 3, thereby facilitating the connection and disassembly operations of the screw lifter 2 and the multi-output reducer 3, and improving the disassembly and assembly efficiency of the lifting platform.

[0060] Since the lifting platform is a multi-axis type, when used in special environments, the movement of individual axes will affect the installation environment. At this time, the first split 61 and the second split 62 connected to one of the screw lifters 2 can be separated, and the screw lifter 2 can be separated from the lifting plate 5, so that the axis can remain stationary when the device is running.

[0061] like Figure 3 As shown, the first split body 61 includes a first cylinder 611, a slide 612, a first limit block 613, a spring 614 and a top screw 615, and the second split body 62 includes a second cylinder 621, a second limit block 622 and a reinforcement protrusion 623, wherein the first cylinder 611 and the second cylinder 621 are respectively fixedly arranged on the output end of the multi-output reducer 3 or the input end of the screw lifter 2; the slide 612 is slidably arranged on the first cylinder 611, and its sliding direction is parallel to the axial direction of the output end of the multi-output reducer 3; the first limit block 613 is fixedly arranged on one end of the slide 612 close to the second cylinder 621; the second limit block 622 is fixedly arranged on one end of the second cylinder 621 close to the first cylinder 611, and the first limit block 613 is selectively engaged with the second limit block 622, as shown in FIG. Figure 5 As shown, when the first split body 61 and the second split body 62 need to be connected, slide the slide 612 to the right to connect the first limit block 613 and the second limit block 622. Conversely, when the first split body 61 and the second split body 62 need to be separated, slide the slide 612 to the left. Specifically, in order to improve the connection effect and anti-torsion performance between the first split body 61 and the second split body 62, multiple first limit blocks 613 and second limit blocks 622 can be provided.

[0062] The sliding direction of the slide 612 is parallel to the axial direction of the output end of the multi-output reducer 3. When the motor 4 drives the output end of the multi-output reducer 3 to rotate, the slide 612 can be prevented from sliding. However, the operation of the motor 4 may generate vibration. This vibration effect may cause the slide 612 to slide during the operation of the device, affecting the normal use of the device. In order to solve this problem, Figure 4As shown, a slot 601 is provided on the circumferential side of the first limit block 613; the reinforcing protrusion 623 is fixedly arranged on the second limit block 622 and selectively engaged with the slot 601, that is, when the first limit block 613 is engaged with the second limit block 622, the reinforcing protrusion 623 is engaged with the slot 601 to prevent the slide 612 from sliding due to vibration. In order to improve the engaging effect, it is preferred that the length direction of the reinforcing protrusion 623 is perpendicular to the axial direction of the first cylinder 611, that is, the first split body 61 and the second split body 62 are engaged in two directions; specifically, the engaging of the reinforcing protrusion 623 with the slot 601 can be achieved by interference fit, and the reinforcing protrusion 623 can be pushed into the slot 601 with a sufficiently large force, or it can be achieved by Figure 3 The method shown is implemented by setting the outer diameter of the second limit block 622 to be smaller than the distance between two adjacent first limit blocks 613 .

[0063] like Figure 5 As shown, one end of the spring 614 abuts against the side of the slide 612 away from the second limit block 622, so that the first split body 61 and the second split body 62 can be clamped in a natural state, and external force is needed to separate the two.

[0064] When the screw lifter 2 or the multi-output reducer 3 needs to be disassembled, the first split body 61 and the second split body 62 need to be separated for a long time, and a threaded hole 602 is opened on the peripheral side of the first cylinder 611; the top screw 615 is connected to the threaded hole 602 through threaded cooperation, and the top screw 615 can be rotated to make the top screw 615 located in the threaded hole 602 or partially extend out of the threaded hole 602, so that the top screw 615 can selectively abut the side of the slide cylinder 612 close to the second limit block 622, such as Figure 5 As shown, when the top screw 615 presses against the side of the slide 612 close to the second limit block 622, the first limit block 613 can be separated from the second limit block 622 and this state can be maintained to perform the disassembly operation of the screw lifter 2 or the multi-output reducer 3.

[0065] As a preferred embodiment, Figure 2As shown, four screw lifters 2 are arranged in a rectangular manner; the multi-output reducer 3 includes a primary reducer 31 and two secondary reducers 32, the primary reducer 31 and the secondary reducer 32 are both fixedly arranged on the frame 1, the primary reducer 31 includes two output ends and one input end, the secondary reducer 32 includes two output ends and two input ends, and the input end of the primary reducer 31 is coaxially fixedly connected to the output end of the motor 4, the two output ends of the primary reducer 31 are respectively coaxially fixedly connected to one of the input ends of the two secondary reducers 32, and the output end of the secondary reducer 32 is coaxially fixedly connected to the input end of the screw lifter 2 The shaft is fixedly connected, so that when the motor 4 is started, the input and output ends of the first-stage reducer 31, the input and output ends of the second-stage reducer 32, and the input and output ends of the screw lifter 2 are driven to rotate; the second-stage reducer 32 also has an input end that is in an idle state, which is a spare input end. When the motor 4 is damaged, the motor 4 cannot drive the lifting plate 5, and an external rotation drive device can be used to connect to this restricted input end, so as to perform emergency drive on the lifting platform; and in order to maintain the symmetry of the lifting platform, it is preferred that the first-stage reducer 31 and the two second-stage reducers 32 are arranged at intervals along the center line of the frame 1.

[0066] like Figure 6 As shown, the primary reducer 31 includes a reducer housing 311, two reducer output shafts 312, a reducer input shaft 313 and a bevel gear 314, wherein the reducer housing 311 is fixedly arranged on the frame 1; the reducer output shaft 312 is the output end of the primary reducer 31, and the reducer output shaft 312 is rotatably arranged on the reducer housing 311, the two reducer output shafts 312 are coaxial and fixedly connected, and are connected to the input end of the secondary reducer 32; the reducer input shaft 313 is the input end of the primary reducer 31, and the reducer output shaft 313 is the input end of the primary reducer 31. The input shaft 313 is rotatably set on the reducer housing 311 and is coaxially fixedly connected to the output end of the motor 4. The reducer input shaft 313 is perpendicular to the reducer output shaft 312; a bevel gear 314 is fixedly set on one of the reducer output shafts 312 and the reducer input shaft 313, and the two bevel gears 314 are meshed. When the motor 4 drives the reducer input shaft 313 to rotate, the meshing of the bevel gear 314 can drive the reducer output shaft 312 to rotate, thereby driving the input end of the secondary reducer 32 to rotate.

[0067] like Figure 7As shown, the secondary reducer 32 is consistent with the primary reducer 31 in principle, except that it has an additional input end. The secondary reducer 32 includes a reducer housing 311, two reducer output shafts 312, two reducer input shafts 313 and a bevel gear 314, wherein the reducer housing 311 is fixedly arranged on the frame 1; the reducer output shaft 312 is the output end of the secondary reducer 32, the reducer output shaft 312 is rotatably arranged on the reducer housing 311, the two reducer output shafts 312 are coaxial and fixedly connected, and are respectively connected to the input end of the screw lifter 2; the reducer input shaft 313 is the input end of the secondary reducer 32, and is connected to the A reducer output shaft 312 of the first-stage reducer 31 is connected, and this connection method can also be achieved through the connector 6. The reducer input shaft 313 is rotatably set on the reducer housing 311. The two reducer input shafts 313 are coaxial and spaced apart and perpendicular to the reducer output shaft 312; a bevel gear 314 is fixedly set on one of the reducer output shafts 312 and the two reducer input shafts 313, and the bevel gears 314 on the reducer output shaft 312 are respectively meshed with the other two bevel gears 314. The rotation of any reducer input shaft 313 can drive the two reducer output shafts 312 to rotate.

[0068] like Figure 8 As shown, the screw lifter 2 includes a lifter housing 21, a worm 22, an internally threaded sleeve 23, a worm wheel 24 and a screw 25, wherein the lifter housing 21 is fixedly arranged on the frame 1; the worm 22 is the input end of the screw lifter 2, the worm 22 and the internally threaded sleeve 23 are both rotatably arranged on the lifter housing 21, and the center lines of the two are perpendicular, the worm 22 corresponds one to one with the reducer output shaft 312 of the secondary reducer 32, a first split body 61 is slidably arranged on the worm 22, and a second split body 62 is fixedly arranged on the reducer output shaft 312, the worm 22 and the reducer output shaft 312 are selectively coaxially fixedly connected through the cooperation of the first split body 61 and the second split body 62, so that the secondary reducer 32 drives the worm 22 to rotate; the worm wheel 24 is fixedly arranged on the internally threaded sleeve 23, and the worm 2 ... The threaded sleeve 23 is on the screw sleeve 23 and meshes with the worm 22; the screw rod 25 is the output end of the screw lifter 2, the screw rod 25 passes through the internally threaded sleeve 23 and is connected thereto by threaded cooperation, the screw rod 25 is arranged in the vertical direction, and its top end is fixedly connected to the lifting plate 5, that is, when the secondary reducer 32 drives the worm 22 to rotate, the meshing of the worm 22 and the worm wheel 24 can drive the worm wheel 24 to rotate, thereby driving the internally threaded sleeve 23 connected thereto to rotate, and since the internally threaded sleeve 23 is rotatably connected to the lifter housing 21, the threaded cooperation of the internally threaded sleeve 23 and the screw rod 25, as well as the fixed limit of multiple screw rods 25 and the lifting plate 5, when the internally threaded sleeve 23 rotates, the screw rod 25 can be driven to move up and down, thereby driving the lifting plate 5 to move up and down.

[0069] The working principle of a multi-axis lifting platform of the utility model is as follows:

[0070] like Figure 2 As shown, the first split body 61 is engaged with the second split body 62, and when the motor 4 is started, the rotation of the output shaft of the motor 4 sequentially passes through the reducer input shaft 313 of the first-stage reducer 31, the bevel gear 314 of the first-stage reducer 31, the reducer output shaft 312 of the first-stage reducer 31, the reducer input shaft 313 of the second-stage reducer 32, the bevel gear 314 of the second-stage reducer 32, the reducer output shaft 312 of the second-stage reducer 32, the worm 22, the worm wheel 24, the internal threaded sleeve 23 and the screw 25 to drive the lifting plate 5 to move up and down; and by using the sliding of the first split body 61, it can be quickly separated from the second split body 62, so that the corresponding screw lifter 2 can be quickly separated from the second-stage reducer 32 to improve its disassembly efficiency.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-axis lifting platform, characterized in that: It comprises a frame (1), a plurality of screw lifters (2), a multi-output reducer (3), a motor (4), a lifting plate (5) and a plurality of connectors (6), wherein: The screw lifter (2), the multi-output reducer (3) and the motor (4) are all fixedly arranged on the frame (1), and the output end of the motor (4) is fixedly connected to the input end of the multi-output reducer (3), and the output end of the multi-output reducer (3) corresponds to the input end of the screw lifter (2) one by one and is coaxially arranged; The lifting plate (5) is fixedly arranged between the output ends of the plurality of screw lifters (2); The connector (6) comprises a first sub-body (61) and a second sub-body (62), wherein: The first split body (61) is slidably arranged on one of the input end of the screw lifter (2) and the output end of the multi-output reducer (3); The second split body (62) is fixedly arranged on the other of the input end of the screw lifter (2) and the output end of the multi-output reducer (3), and the first split body (61) is selectively engaged with the second split body (62).

2. A multi-axis lifting platform as claimed in claim 1, characterized in that: The first split body (61) includes a first cylinder (611), a slide cylinder (612) and a first limit block (613), and the second split body (62) includes a second cylinder (621) and a second limit block (622), wherein: The first cylinder (611) and the second cylinder (621) are respectively fixedly arranged on the output end of the multi-output reducer (3) or on the input end of the screw lifter (2); The slide cylinder (612) is slidably disposed on the first cylinder (611), and its sliding direction is parallel to the axial direction of the output end of the multi-output reducer (3); The first limiting block (613) is fixedly arranged at one end of the slide cylinder (612) close to the second cylinder body (621); The second limiting block (622) is fixedly arranged at one end of the second cylinder (621) close to the first cylinder (611), and the first limiting block (613) is selectively engaged with the second limiting block (622).

3. A multi-axis lifting platform as claimed in claim 2, characterized in that: A slot (601) is provided on the peripheral side of the first limiting block (613); The second split body (62) further comprises a reinforcing protrusion (623), which is fixedly arranged on the second limiting block (622) and selectively engaged with the engaging groove (601), and the length direction of the reinforcing protrusion (623) is perpendicular to the axial direction of the first cylinder (611).

4. A multi-axis lifting platform as claimed in claim 3, characterized in that: The first split body (61) further comprises a spring (614), one end of the spring (614) being in contact with a side of the slide cylinder (612) away from the second limiting block (622).

5. A multi-axis lifting platform as claimed in claim 4, characterized in that: A threaded hole (602) is provided on the circumferential side of the first cylinder (611); The first split body (61) also includes a top screw (615), which is connected to the threaded hole (602) through threaded cooperation and selectively presses against a side of the slide cylinder (612) close to the second limit block (622) to separate the first limit block (613) from the second limit block (622).

6. A multi-axis lifting platform as claimed in claim 1, characterized in that: The screw rod lifters (2) are arranged in four in a rectangular manner; The multi-output reducer (3) comprises a primary reducer (31) and two secondary reducers (32); the primary reducer (31) and the secondary reducer (32) are both fixedly arranged on the frame (1); the primary reducer (31) comprises two output ends and one input end; the secondary reducer (32) comprises two output ends and two input ends; the input end of the primary reducer (31) is coaxially fixedly connected to the output end of the motor (4); the two output ends of the primary reducer (31) are coaxially fixedly connected to one of the input ends of the two secondary reducers (32); and the output end of the secondary reducer (32) is coaxially fixedly connected to the input end of the screw lifter (2).

7. A multi-axis lifting platform as claimed in claim 6, characterized in that: The primary reducer (31) comprises a reducer housing (311), two reducer output shafts (312), a reducer input shaft (313) and a bevel gear (314), wherein: The reducer housing (311) is fixedly arranged on the frame (1); The reducer output shaft (312) is rotatably arranged on the reducer housing (311), and the two reducer output shafts (312) are coaxial and fixedly connected; The reducer input shaft (313) is rotatably arranged on the reducer housing (311) and is coaxially fixedly connected to the output end of the motor (4); the reducer input shaft (313) is perpendicular to the reducer output shaft (312); One of the reducer output shafts (312) and the reducer input shaft (313) is fixedly provided with a bevel gear (314) respectively, and the two bevel gears (314) are meshed with each other.

8. A multi-axis lifting platform as claimed in claim 6, characterized in that: The two-stage reducer (32) comprises a reducer housing (311), two reducer output shafts (312), two reducer input shafts (313) and a bevel gear (314), wherein: The reducer housing (311) is fixedly arranged on the frame (1); The reducer output shaft (312) is rotatably arranged on the reducer housing (311), and the two reducer output shafts (312) are coaxial and fixedly connected; The reducer input shaft (313) is rotatably arranged on the reducer housing (311), and the two reducer input shafts (313) are coaxial and spaced apart and are perpendicular to the reducer output shaft (312); One of the reducer output shafts (312) and the two reducer input shafts (313) is fixedly provided with a bevel gear (314) respectively, and the bevel gear (314) on the reducer output shaft (312) is meshed with the other two bevel gears (314) respectively.

9. A multi-axis lifting platform as claimed in claim 8, characterized in that: The screw lifter (2) comprises a lifter housing (21), a worm (22), an internal thread sleeve (23), a worm wheel (24) and a screw (25), wherein: The lifter housing (21) is fixedly arranged on the frame (1); The worm (22) and the internally threaded sleeve (23) are both rotatably arranged on the lifter housing (21), and the center lines of the two are perpendicular to each other. The worm (22) corresponds to the reducer output shaft (312) one by one. The first sub-body (61) is fixedly arranged on the worm (22), and the second sub-body (62) is fixedly arranged on the reducer output shaft (312). The worm (22) and the reducer output shaft (312) are selectively coaxially fixedly connected through the cooperation of the first sub-body (61) and the second sub-body (62); The worm wheel (24) is fixedly arranged on the internal thread sleeve (23) and meshes with the worm (22); The screw rod (25) passes through the internal threaded sleeve (23) and is connected thereto by threaded engagement. The screw rod (25) is arranged in a vertical direction, and its top end is fixedly connected to the lifting plate (5).

10. A multi-axis lifting platform as claimed in claim 6, characterized in that: The primary reducer (31) and the two secondary reducers (32) are arranged at intervals along the center line of the frame (1).

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