CN116495666A - Lifting mechanism and automation equipment - Google Patents

Abstract

The invention relates to a lifting mechanism and automation equipment, comprising a fixed plate, a top plate, a bottom plate, a screw assembly and a drive assembly, the drive assembly is connected to the fixed plate and located on one side of the screw assembly, and the screw assembly includes The screw rod and the nut seat sleeved on the screw rod, the driving assembly is connected to the nut seat in transmission, the nut seat is rotatably connected to the fixing plate, the screw rod passes through the fixing plate, Both ends of the screw rod are respectively connected with the top plate and the bottom plate. Satisfied with occasions where a large stroke of vertical lifting is required in a limited space, the whole mechanism is kept in a more balanced and stable connection state, making the structure more reliable and the lifting process more stable.

Description

Lifting mechanism and automation equipment

technical field

The invention relates to the technical field of lifting mechanisms, in particular to a lifting mechanism and automation equipment.

Background technique

The traditional lifting mechanism is generally a pneumatic driving lifting mechanism and a standard module lifting mechanism. Among them, the pneumatic driving lifting mechanism adopts the cylinder as the driving power design, which can only realize the relative movement between two points, and the movement action is single; the standard module lifting The mechanism drives the nut seat to lift up and down through the rotation of the screw rod. Although the movement of multiple positions can be realized according to the requirements to increase the flexibility of the movement, it is difficult to adapt to the occasions that require a large vertical stroke in a limited space, and the structure is unstable.

Contents of the invention

Based on this, it is necessary to address the above technical problems and provide a lifting mechanism and automation equipment that can meet the occasions where a large stroke of vertical lifting is required in a limited space, and has a stable structure.

A lifting mechanism, including a top plate, a fixed plate, a bottom plate, a screw assembly and a drive assembly, the top plate, the fixed plate and the bottom plate are arranged in sequence in space, and the drive assembly is connected to the fixed plate and located at the One side of the screw assembly, the screw assembly includes a screw and a nut seat sleeved on the screw, the nut seat is rotatably connected to the fixed plate, and the drive assembly is connected to the nut seat , the threaded rod passes through the fixing plate, and the two ends of the threaded rod are respectively connected with the top plate and the bottom plate.

In one of the embodiments, the screw assembly further includes a bearing and a mounting seat, the bearing is installed in the mounting seat, the mounting seat is connected to the fixed plate, and the screw rod passes through the bearing and mounting seat. seat, the inner ring of the bearing is in contact with the nut seat.

In one embodiment, the screw assembly further includes a hollow shaft, the hollow shaft is sleeved outside the screw rod, the nut seat is connected to the hollow shaft, and the hollow shaft is located between the nut seat and the hollow shaft. Between the bearings, the inner ring of the bearing is in contact with the nut seat through the hollow shaft.

In one of the embodiments, the hollow shaft includes a connected first section and a second section, the outer diameter of the first section is larger than the outer diameter of the second section, the nut seat and the first section The two sections are connected, and the bearing is sleeved on the second section.

In one embodiment, the hollow shaft further includes a transition section through which the first section and the second section are connected, and the outer diameter of the transition section is from the first section to the second section direction gradually decreases.

In one of the embodiments, the screw assembly further includes a support nut, the support nut is sleeved outside the screw rod, and is located at the end of the bearing away from the nut seat, and the support nut is One end abuts against the inner ring of the bearing, and the support nut is connected with the second section of the hollow shaft.

In one of the embodiments, the screw assembly further includes an end cover, the end cover is sleeved on the outside of the screw rod, and is located at the end of the bearing close to the nut seat, and the end cover abuts against the The outer ring of the bearing; the mounting seat includes a connected mounting section and a flange section, the flange section is connected to the fixing plate, the mounting section passes through the fixing plate, the end cover and the The above-mentioned flange connection.

In one of the embodiments, the drive assembly includes a motor, a first synchronous wheel, a second synchronous wheel, and a synchronous belt sleeved on the first synchronous wheel and the second synchronous wheel, and the motor is connected to the fixed plate , the first synchronous wheel is connected to the transmission shaft of the motor, the second synchronous wheel is sleeved outside the screw rod, and the second synchronous wheel is located between the nut seat and the hollow shaft, And the second synchronous wheel is connected with the nut seat and the hollow shaft.

In one embodiment, the lifting mechanism further includes a guide assembly, the guide assembly passes through the fixing plate, and two ends of the guide assembly are respectively connected to the top plate and the bottom plate.

In one of the embodiments, the lifting mechanism further includes a support rod, an upper limiter, a lower limiter and a light blocking sheet, the support rod is fixedly installed on the fixed plate, and the upper limiter is connected to the the upper end of the support rod, the lower limiter is connected to the lower end of the support rod,

The support rod extends along the direction from the fixed plate to the top plate, and the light blocking sheet is fixedly installed on the top plate; or, the support rod extends along the direction from the fixed plate to the bottom plate, and the light blocking sheet is fixed mounted on the base plate.

An automatic equipment, including a load and the lifting mechanism, the load is arranged on the top plate or the bottom plate.

The above-mentioned lifting mechanism and automation equipment, by installing the drive assembly on the fixed plate and located on one side of the screw assembly, the drive assembly drives the nut seat to rotate relative to the fixed plate. Since the nut seat and the fixed plate are rotatably connected and screwed with the screw rod, the nut During the rotation of the base, the screw rod can be driven up or down, and the load can be connected to the bottom plate or the top plate, and then rise or fall with the screw rod. Since the drive component is located on one side of the screw component, and the nut seat is limited to the fixed plate, compared with the traditional lifting mechanism, on the one hand, the connection structure between the screw rod and the drive component does not need to occupy too much height space, and more space can be reserved On the other hand, because the fixed plate, nut seat and driving assembly are located in the middle of the screw rod, and the two ends of the screw rod are respectively connected to the top plate and the bottom plate, the overall structure is more compact, and the whole mechanism can be kept in a more balanced state. , The stable connection state makes the structure more reliable and the lifting process more stable, which can meet the occasions where a large vertical stroke is required in a limited space.

Description of drawings

The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the present disclosure are shown by way of illustration and not limitation, and the same or corresponding reference numerals indicate the same or corresponding parts, wherein:

Fig. 1 is a structural schematic diagram of a lifting mechanism according to an embodiment of the present application;

Fig. 2 is a structural schematic diagram of removing a reinforcement plate from the lifting mechanism in Fig. 1;

Fig. 3 is a schematic structural view of the screw assembly of the lifting mechanism in Fig. 1;

Fig. 4 is a structural schematic diagram of removing the mounting seat of the screw assembly in Fig. 3 .

Explanation of reference signs:

10, fixed plate; 110, reinforcement plate; 120, tension plate; 20, top plate; 30, bottom plate;

40, screw assembly; 410, screw rod; 420, nut seat; 430, bearing; 440, mounting base; 442, installation section; 444, flange section; 450, hollow shaft; 452, first section; 454, second Section; 456, transition section; 460, support nut; 470, end cover; 481, upper buffer pad; 482, lower buffer pad;

50. Drive assembly; 510. Motor; 520. Synchronous belt; 530. First synchronous wheel; 540. Second synchronous wheel;

60. Guide assembly; 610. Guide shaft; 620. Linear bearing;

70. Support rod;

810, upper limiter; 820, lower limiter; 830, light blocking sheet.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are part of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present disclosure.

Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

The traditional standard module lifting mechanism is generally to limit the two ends of the screw rod, the motor is fixed at one end of the screw rod, and the motor is connected to the end of the screw rod through a coupling, so that the screw rod can rotate but cannot move along. It moves axially. When the screw rotates, it drives the nut seat screwed with it to move up and down along the axial direction of the screw. The load is connected to the nut seat. Although the nut seat can drive the load to achieve different heights, it is difficult due to structural limitations. It is suitable for occasions where a large vertical stroke is required in a limited space, and the structure is unstable.

An embodiment of the present application provides a lifting mechanism, which can meet the occasions where a large vertical stroke is required in a limited space, and the overall structure is stable. Referring to FIGS. 1-4 , the lifting mechanism includes a fixed plate 10 , a top plate 20 , a bottom plate 30 , a screw assembly 40 and a drive assembly 50 . The top board 20 , the fixing board 10 and the bottom board 30 are arranged in sequence in space. The driving assembly 50 is connected to the fixing plate 10 and located on one side of the screw assembly 40 . The screw assembly 40 includes a screw 410 and a nut seat 420 sheathed on the screw 410 , and the driving assembly 50 is in transmission connection with the nut seat 420 . The nut seat 420 is rotatably connected to the fixing plate 10 , the screw rod 410 passes through the fixing plate 10 , and the two ends of the screw rod 410 are respectively connected to the top plate 20 and the bottom plate 30 . That is, the top plate 20 , the fixing plate 10 and the bottom plate 30 are sequentially arranged at intervals along the length direction of the threaded rod 410 . The fixed plate 10 is located between the top plate 20 and the bottom plate 30, and the fixed plate 10 maintains a constant position, and the drive assembly 50 is installed on the fixed plate 10, and is located on one side of the screw assembly 40, that is, the drive assembly 50 is between the two ends of the screw rod 410 In the space between, there is no need to occupy additional installation space in the height direction, and the overall structure is more compact, and the nut seat 420 maintains a constant position, and the screw rod 410 moves up and down along the nut seat 420.

Optionally, multiple air holes can be provided on the bottom plate 30, which can be connected to the air pipe of the suction nozzle, and can also be used as the installation and fixation of the load, and cantilever arms of different lengths can be installed to connect the load.

In the lifting mechanism of this embodiment, by installing the driving assembly 50 on the fixed plate 10 and being located on one side of the screw assembly 40, the driving assembly 50 drives the nut seat 420 to rotate relative to the fixed plate 10, because the nut seat 420 is rotatably connected to the fixed plate 10 And screwed with the screw rod 410 , the nut seat 420 can drive the screw rod 410 to rise or fall during the rotation process, and the load can be connected to the bottom plate 30 or the top plate 20 , and then rise or fall with the screw rod 410 . Since the drive assembly 50 is located on one side of the screw assembly 40, and the nut seat 420 is limited to the fixed plate 10, compared with the traditional lifting mechanism, on the one hand, the connection structure between the screw rod 410 and the drive assembly 50 does not need to occupy too much height space, More space can be left for the screw mandrel to go up and down. On the other hand, since the fixed plate 10, the nut seat 420 and the driving assembly 50 are located in the middle of the screw mandrel 410, and the two ends of the screw mandrel 410 are connected to the top plate 20 and the bottom plate 30 respectively. , the compact structure can keep the whole mechanism in a more balanced and stable connection state, making the structure more reliable and the lifting process more stable, which can meet the occasions that require a large vertical stroke in a limited space.

3 and 4, further, in one embodiment, the screw assembly 40 also includes a bearing 430 and a mounting seat 440, the bearing 430 is installed in the mounting seat 440, and the mounting seat 440 is connected to the mounting seat 440 The fixing plate 10 is connected, the screw rod 410 passes through the bearing 430 and the mounting seat 440 , and the inner ring of the bearing 430 is in contact with the nut seat 420 . The inner wall of the original mounting seat 440 of the outer ring of the bearing 430 is in contact with the inner wall. Balls are arranged between the inner ring of the bearing 430 and the outer ring of the bearing 430. The outer ring of the bearing 430 is limited by the mounting seat 440, and the drive assembly 50 drives the nut seat. 420 rotates, because the nut seat 420 is in contact with the inner ring of the bearing 430, and then drives the inner ring of the bearing 430 to rotate relative to its outer ring, so that the nut seat 420 is limited by the mounting seat 440 and cannot move along the Z direction. Movement, the bearing 430 bears the axial force in the Z direction, and the nut seat 420 can rotate smoothly relative to the mounting seat 440 . Optionally, the screw assembly 40 includes two bearings 430, the two bearings 430 are close to each other, the inner ring of one of the bearings 430 is in contact with the nut seat 420, and the two bearings 430 cooperate to better withstand the axial force in the Z direction , making the overall structure more stable and reliable.

Optionally, the nut seat 420 can be arranged in a stepped shape, wherein the end with a small outer diameter can be inserted into the inner ring of the bearing 430 to contact and fit with it, and is limited so that it cannot move in a straight line.

3 and 4, further, in one embodiment, the screw assembly 40 further includes a hollow shaft 450, the hollow shaft 450 is sheathed outside the screw rod 410, and the nut seat 420 is connected to the The hollow shaft 450 is connected, and the hollow shaft 450 is located between the nut seat 420 and the bearing 430 , and the inner ring of the bearing 430 contacts and fits with the nut seat 420 through the hollow shaft 450 . The hollow shaft 450 is fixedly connected with the nut seat 420, and the drive assembly 50 drives the nut seat 420 to rotate, driving the hollow shaft 450 to rotate synchronously. Since the hollow shaft 450 is located between the nut seat 420 and the bearing 430, the bearing 430 The inner ring contacts and cooperates with the nut seat 420 through the hollow shaft 450, and then drives the inner ring of the bearing 430 to rotate relative to its outer ring, so that the nut seat 420 is limited by the mounting seat 440 and cannot move in a straight line in the Z direction, and can Rotate smoothly relative to the mounting base 440 . The hollow shaft 450 also bears the axial force in the Z direction of the screw rod 410, further making the overall structure more stable and reliable.

Specifically, in one of the embodiments, referring to FIG. 4 , the hollow shaft 450 includes a connected first section 452 and a second section 454, and the outer diameter of the first section 452 is larger than that of the second section 454. The outer diameter, the nut seat 420 is connected to the first section 452 , and the bearing 430 is sleeved on the second section 454 . The first section 452 is connected to the nut seat 420, and the second section 454 passes through the mounting seat 440 and extends into the inner ring of the bearing 430 and contacts with it. With the synchronous rotation of the bearing 430, the hollow shaft 450 and the nut seat 420 are limited. It cannot move in a straight line in the Z direction.

In one embodiment, the hollow shaft 450 further includes a transition section 456 through which the first section 452 and the second section 454 are connected, and the outer diameter of the transition section 456 is determined by the first Segment 452 tapers in the direction of second segment 454 . By setting the transition section 456 whose outer diameter gradually decreases from the first section 452 to the second section 454, the interference between the hollow shaft 450 and the outer ring of the bearing 430 is avoided, and the strength of the hollow shaft 450 is maintained to improve the overall structural stability.

In one embodiment, the screw assembly 40 further includes a support nut 460, the support nut 460 is sheathed outside the screw rod 410, and is located at the end of the bearing 430 away from the nut seat 420, One end of the support nut 460 abuts against the inner ring of the bearing 430 , and the support nut 460 is connected with the second section 454 of the central shaft. At the end away from the nut seat 420, a support nut 460 is arranged to abut against the inner ring of the bearing 430, which can press the bearing 430 and eliminate the internal clearance of the bearing 430. At the same time, the support nut 460 is connected with the second section 454 of the hollow shaft 450, supporting The seat nut 460 further restricts the Z-direction freedom of the hollow shaft 450 and the nut seat 420 to limit their linear motion, and meanwhile the seat nut 460 rotates with the bearing 430 and the hollow shaft 450 . Optionally, the support nut is provided with a plurality of through screw holes along its radial direction, and the screws pass through the screw holes and are pressed against the outer wall of the hollow shaft 450, so that the support nut 460 and the second end of the hollow shaft 450 Fasten the connection.

2, 3, 4, in one embodiment, the screw assembly 40 further includes an end cover 470, the end cover 470 is sleeved on the outside of the screw 410, and is located near the bearing 430. One end of the nut seat 420 , the end cover 470 abuts against the outer ring of the bearing 430 . An end cover 470 is provided at one end close to the nut seat 420 to abut against the outer ring of the bearing 430 without affecting the rotation of the inner ring of the bearing 430 , and at the same time can press the bearing 430 to eliminate the internal clearance of the bearing 430 .

Further, the mounting seat 440 includes a connected mounting segment 442 and a flange segment 444, the flange segment 444 is connected to the fixing plate 10, the mounting segment 442 passes through the fixing plate 10, the The end cap 470 is connected to the flange segment 444 . The fixing plate 10 is provided with a mounting hole, the diameter of the mounting hole is smaller than the diameter of the flange section 444 and larger than the diameter of the mounting section 442, one end of the mounting section 442 passes through the mounting hole, and the flange section 444 is clamped on the upper surface of the fixing plate 10 And it is fastened to the fixed plate 10 by screws, so that the screw assembly 40 is connected to the fixed plate 10 as a whole.

1, 2, in one of the embodiments, the drive assembly 50 includes a motor 510, a first synchronous wheel 530, a second synchronous wheel 540, and sleeved on the first synchronous wheel 530 and the second synchronous wheel. The synchronous belt 520 on the wheel 540, the motor 510 is connected to the fixed plate 10, the first synchronous wheel 530 is connected to the transmission shaft of the motor 510, and the second synchronous wheel 540 is sleeved on the wire Outside the rod 410 , the second synchronous wheel 540 is located between the nut seat 420 and the hollow shaft 450 , and the second synchronous wheel 540 is connected with the nut seat 420 and the hollow shaft 450 . The second synchronous wheel 540, the nut seat 420 and the hollow shaft 450 are all provided with relative connecting holes extending along the Z direction, and the screw rods are sequentially passed through the nut seat 420, the second synchronous wheel 540 and the hollow shaft 450. The connecting hole is locked to the hollow shaft 450 , so that the second synchronous wheel 540 is firmly connected with the nut seat 420 and the hollow shaft 450 , and the second synchronous wheel 540 drives the nut seat 420 and the hollow shaft 450 to rotate synchronously. The second synchronous wheel 540 is disposed between the nut seat 420 and the hollow shaft 450 , so that the second synchronous wheel 540 is pressed to maintain a constant position.

Optionally, in one embodiment, the first synchronous wheel 530 and the second synchronous wheel 540 are pulleys, and the synchronous belt 520 is a belt. In another embodiment, the first synchronous wheel 530 and the second synchronous wheel 540 are sprockets, and the synchronous belt 520 is a chain.

Further, the lifting mechanism also includes a plurality of reinforcing plates 110, which are vertically arranged and fixed on the outer periphery of the fixing plate 10, so as to make the overall structure more stable. The reinforcing plate 110 is provided with a tensioning plate 120, the tensioning plate 120 is spaced apart from the fixed plate 10, the motor 510 is installed on the said tensioning plate 120, so that the motor 510 is suspended relative to the fixed plate 10, and the transmission shaft of the motor 510 passes through The overtensioning plate 120 faces toward the fixing plate 10 , and the first synchronizing wheel 530 is sleeved on the transmission shaft and located in a space between the tensioning plate 120 and the fixing plate 10 . The tension plate serves as the tension adjustment function of the motor 510 . The second synchronous wheel 540 is disposed opposite to the first synchronous wheel 530 , and the synchronous belt 520 is sleeved on the first synchronous wheel 530 and the second synchronous wheel 540 respectively.

Further, in any of the above-mentioned embodiments, the lifting mechanism further includes a guide assembly 60, the guide assembly 60 passes through the fixed plate 10, and the two ends of the guide assembly 60 are connected to the top plate 20 respectively. Connect to base plate 30. By setting the fixed plate 10 through and connecting the two ends with the top plate 20 and the bottom plate 30 respectively, the guiding assembly 60 is driven to guide the lifting of the screw rod 410, making it run more smoothly and further improving the stability of the structure. Optionally, the guide assembly 60 includes four, which are respectively located at the four corners of the threaded rod 410 .

Optionally, the guide assembly 60 includes a linear bearing 620 and a guide shaft 610, the linear bearing 620 is installed on the fixed plate 10, the guide shaft 610 passes through the linear bearing 620, and the guide shaft Two ends of 610 are respectively connected to the top board 20 and the bottom board 30 . The guide shafts 610 are used as guides for the lifting of the mechanism, and are used in conjunction with the linear bearings 620. Four guide shafts 610 are used, with high precision and stable structure operation. In other embodiments, the guide assembly 60 may use a linear guide rail to guide the mechanism.

The guide assembly 60 also includes an upper buffer pad 481 and a lower buffer pad 482 , the upper buffer pad 481 is installed on the top board 20 , and the lower buffer pad 482 is installed and fixed on the bottom board 30 . The upper end of the guide shaft 610 passes through the upper buffer pad 481 and is connected with the top plate 20, and the lower end of the guide shaft 610 passes through the lower buffer pad 482 and is connected with the bottom plate 30. When the screw mandrel 410 drops to the limit position, the upper buffer pad 481 can effectively The cushioning effect prevents the top plate 20 from directly colliding with the linear bearing 620 ; when the screw rod 410 rises to the limit position, the lower buffer pad 482 can effectively play a buffering role and avoid the direct collision between the bottom plate 30 and the fixed plate 10 .

Referring to FIG. 2 , in one embodiment, the lifting mechanism further includes a support rod 70 , an upper limiter 810 , a lower limiter 820 and a light blocking sheet 830 , and the support rod 70 is fixedly mounted on the fixed plate 10 , the upper limiter 810 is connected to the upper end of the support rod 70, the lower limiter 820 is connected to the lower end of the support rod 70; the support rod 70 extends along the direction from the fixed plate 10 to the top plate 20 , the light blocking sheet 830 is fixedly installed on the top board 20 . The light blocking sheet 830 is used in conjunction with the upper limiter 810 and the lower limiter 820 to judge the limit position of the screw rod 410 . When the screw mandrel 410 drops to the limit position, the light blocking plate 830 triggers the lower limiter 820, and then the drive assembly 50 is reversed or stopped, so as to prevent the screw mandrel 410 from continuing to decline; when the screw mandrel 410 rises to the limit position, the light blocking plate 830 triggers the upper limiter 810, and then the driving assembly 50 is reversed or stopped, preventing the screw rod 410 from continuing to rise.

Optionally, in another embodiment, the support rod 70 extends along the direction from the fixing plate 10 to the bottom plate 30 , and the light blocking sheet 830 is fixedly installed on the bottom plate 30 . Similarly, when the screw mandrel 410 drops to the limit position, the light blocking plate 830 triggers the lower limiter 820, thereby causing the drive assembly 50 to reverse or stop, preventing the screw mandrel 410 from continuing to drop; when the screw mandrel 410 rises to the limit position, The light blocking plate 830 triggers the upper limiter 810, and then the driving assembly 50 is reversed or stopped, preventing the screw rod 410 from continuing to rise.

Another embodiment of the present application provides an automation device, including a load and the lifting mechanism described in any one of the above embodiments, the load is arranged on a top plate or a bottom plate of the lifting mechanism. The driving assembly 50 drives the nut seat 420 to rotate relative to the fixed plate 10. During the rotation of the nut seat 420, the screw mandrel 410 can be driven to rise or fall. Since the load is arranged on the bottom plate 30 or the top plate 20 connected with the screw mandrel 410, the load can follow the screw. Rod 410 is raised or lowered. Compared with traditional automation equipment, on the one hand, the connection structure between the screw rod 410 and the drive assembly 50 does not need to occupy too much height space, and the structure is compact, which can meet the occasions where a large stroke vertical lift is required in a limited space. On the other hand, due to The fixed plate 10, the nut seat 420 and the drive assembly 50 are located in the middle of the screw mandrel 410, and the two ends of the screw mandrel 410 are respectively connected with the top plate 20 and the bottom plate 30, so that the whole mechanism can be kept in a more balanced and stable connection state, so that The structure is more reliable and the lifting process is more stable.

In the above descriptions of this specification, unless otherwise clearly specified and limited, terms such as "fixed", "installed", "connected" or "connected" should be interpreted in a broad sense. For example, as far as the term "connection" is concerned, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary , or it can be the internal communication of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

According to the above description of this specification, those skilled in the art can also understand the terms used as follows, such as "upper", "lower", "front", "rear", "left", "right", "length", "width" ", "Thickness", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial", "Circumferential", "Center", " Terms indicating orientation or positional relationship, such as "longitudinal", "transverse", "clockwise" or "counterclockwise", are based on the orientation or positional relationship shown in the drawings of this specification, and are only for the convenience of explaining the solution of the present invention. and simplify the description, rather than express or imply that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation, so the above orientation or positional relationship terms cannot be understood or interpreted as Limitations on the Protocols of the Invention.

In addition, terms such as "first" or "second" used in this specification to refer to numbers or ordinal numbers are used for descriptive purposes only, and should not be interpreted as express or implied relative importance or implied indications The number of technical characteristics. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this specification, "plurality" means at least two, such as two, three or more, etc., unless otherwise specifically defined.

While various embodiments of the invention have been illustrated and described, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Many modifications, changes and substitutions will occur to those skilled in the art without departing from the idea and spirit of the present invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention. It is intended that the appended claims define the scope of the invention and therefore cover modular compositions, equivalents or alternatives within the scope of these claims.

Claims (11)

1. The utility model provides a elevating system, its characterized in that includes roof, fixed plate, bottom plate, screw rod subassembly and drive assembly, the roof the fixed plate with the bottom plate is arranged in space in proper order, drive assembly connect in the fixed plate just is located one side of screw rod subassembly, screw rod subassembly includes lead screw and cover and locates the nut seat of lead screw, nut seat rotatable coupling in the fixed plate, drive assembly with nut seat transmission is connected, the lead screw wears to establish the fixed plate, the both ends of lead screw respectively with the roof with the bottom plate is connected.

2. The lifting mechanism of claim 1, wherein the screw assembly further comprises a bearing and a mounting seat, the bearing is mounted in the mounting seat, the mounting seat is connected with the fixed plate, the screw rod penetrates through the bearing and the mounting seat, and an inner ring of the bearing is in contact fit with the nut seat.

3. The lifting mechanism of claim 2, wherein the screw assembly further comprises a hollow shaft, the hollow shaft is sleeved outside the screw rod, the nut seat is connected with the hollow shaft, the hollow shaft is located between the nut seat and the bearing, and an inner ring of the bearing is in contact fit with the nut seat through the hollow shaft.

4. A lifting mechanism according to claim 3, wherein the hollow shaft comprises a first section and a second section connected, the outer diameter of the first section is larger than that of the second section, the nut seat is connected with the first section, and the bearing sleeve is arranged on the second section.

5. The lift mechanism of claim 4, wherein the hollow shaft further comprises a transition section through which the first section and the second section are connected, the transition section having an outer diameter that gradually decreases from the first section toward the second section.

6. The lifting mechanism of claim 4 or 5, wherein the screw assembly further comprises a support nut, the support nut is sleeved outside the screw rod and is located at one end of the bearing away from the nut seat, one end of the support nut is abutted against an inner ring of the bearing, and the support nut is connected with the second section of the hollow shaft.

7. The lifting mechanism of claim 6, wherein the screw assembly further comprises an end cap, the end cap is sleeved outside the screw rod and positioned at one end of the bearing close to the nut seat, and the end cap is abutted against an outer ring of the bearing; the mounting seat comprises a mounting section and a flange section which are connected, the flange section is connected with the fixing plate, the mounting section penetrates through the fixing plate, and the end cover is connected with the flange section.

8. The lifting mechanism according to any one of claims 3 to 5, wherein the driving assembly comprises a motor, a first synchronizing wheel, a second synchronizing wheel, and a synchronous belt sleeved on the first synchronizing wheel and the second synchronizing wheel, the motor is connected with the fixing plate, the first synchronizing wheel is connected with a transmission shaft of the motor, the second synchronizing wheel is sleeved outside the screw rod, the second synchronizing wheel is located between the nut seat and the hollow shaft, and the second synchronizing wheel is connected with the nut seat and the hollow shaft.

9. The lift mechanism of any one of claims 1 to 5, further comprising a guide assembly, the guide assembly penetrating the fixed plate, and both ends of the guide assembly being connected to the top plate and the bottom plate, respectively.

10. The lifting mechanism according to any one of claims 1 to 5, further comprising a support rod fixedly installed to the fixing plate, an upper stopper connected to an upper end of the support rod, a lower stopper connected to a lower end of the support rod,

the support rods extend along the direction from the fixing plate to the top plate, and the light blocking sheet is fixedly arranged on the top plate; or the supporting rod extends along the direction from the fixed plate to the bottom plate, and the light blocking sheet is fixedly arranged on the bottom plate.

11. An automated apparatus comprising a load and the lifting mechanism of any one of claims 1-10, the load being disposed on the top or bottom plate.