CN219667552U - Low-height compact standardized heavy-load lifting driving module and bending machine - Google Patents

Abstract

The utility model discloses a low-height compact standardized heavy-duty lifting drive module and a bending machine, which include a power component, a connecting seat and a screw transmission mechanism; the screw transmission mechanism includes a rotating component and a lifting component; the lifting component is arranged vertically, and the bottom It is connected to the external lifting load, and the top is matched with the thread pair of the rotating part; the rotating part is hingedly matched with the mounting base; the mounting base has a mounting plane for mounting with external equipment; the power component includes a drive motor and a rotation reversal located in the mounting base Transmission mechanism; the driving motor is set horizontally; the rotation reversing transmission mechanism includes a transverse rotating part and a vertical rotating part; the transverse rotating part is set horizontally, and the input end is connected to the driving motor; the vertical rotating part is set vertically, and the output end is connected to the rotating part. The tops of the components are connected. This application reduces the total height of the module by 200 to 300mm while carrying the load, so that the structure is compact, the size is small, the space is small, and it is easy to transport.

Description

A low-height compact standardized heavy-duty lifting drive module and bending machine

Technical field

The utility model relates to a power drive device, in particular to a low-height compact standardized heavy-duty lifting drive module and a bending machine.

Background technique

At present, for the slide lift drive device of CNC bending equipment above 80 tons, the domestic and foreign markets are mainly hydraulic drive. Limited by manufacturing costs, transmission technology, CNC systems, machine structure and other factors, mechanical all-electric servo is still blank. The advantage of the above-mentioned hydraulic drive is that it can be applied to large tonnage of more than 80 tons, and it is easy to realize the bending processing of large format and thick plates. However, there are also the following shortcomings:

1. Loud noise, high energy consumption, hydraulic oil leakage and environmental pollution.

2. The cost is high, because the cost of high-precision parts such as hydraulic cylinders, valve groups, and hydraulic pumps is relatively high. Among them, the high-end market of valve groups and hydraulic pump components is almost completely dependent on imports, and the cost is high.

3. The accuracy is not high. There are inherent disadvantages in the position accuracy control of the hydraulic system, and the position controllability is poor.

4. Short service life, component wear, and hydraulic oil circuit contamination can easily have adverse effects on the stability of the hydraulic system.

5. The slider moves with great impact and is not smooth.

6. It is greatly affected by environmental temperature, humidity, dust and other factors.

7. The motion control is complex.

8. The control system relies on imports.

9. Low processing efficiency.

However, the current market share of 80 tons and above has reached more than 80% of the market share. However, due to the following reasons, mechanical all-electric servo has become the bottleneck in replacing traditional hydraulic transmission.

1. The existing technology mainly uses a servo motor to drive the screw after decelerating with a synchronous belt. It has poor rigidity, high noise, and poor transmission accuracy.

2. Using a linkage mechanism, although it has nonlinear characteristics and can achieve high speed and low load in the idle stroke and low speed and high load in the bending stroke, it has many parts, complicated control, and short effective working stroke.

3. The servo motor is connected through a reduction mechanism and the screw through a coupling. The overall size is too large and is inconvenient for packaging and transportation.

4. The transmission part cannot be designed and processed in a modular manner, the manufacturing cost is high, there is no interchangeability, and it is difficult to achieve mass replication.

Utility model content

The technical problem to be solved by this utility model is to provide a low-height compact standardized heavy-duty lifting drive module and a bending machine in view of the above-mentioned deficiencies in the prior art. The low-height compact standardized heavy-duty lifting drive module and bending machine While the machine is carrying the load, the total height of the module is reduced by 200 to 300mm, resulting in a compact structure, small size, small space occupation, and easy transportation.

In order to solve the above technical problems, the technical solution adopted by this utility model is:

A low-height compact standardized heavy-duty lifting drive module, including power components, connecting seats and screw transmission mechanisms.

The spiral transmission mechanism includes a rotating part and a lifting part; the lifting part is arranged vertically, the bottom of the lifting part is connected to the external lifting load, and the top of the lifting part cooperates with the thread pair of the rotating part; the rotating part is hingedly matched with the mounting base; the mounting base has the function of connecting with external equipment The corresponding mounting surface.

The power components include a driving motor and a rotary reversing transmission mechanism arranged in the mounting base.

The drive motor is set horizontally.

The rotary reversing transmission mechanism includes directly or indirectly meshed transverse rotating parts and vertical rotating parts.

The transverse rotating member is arranged transversely, and the input end is directly or indirectly connected to the driving motor.

The vertical rotating part is arranged vertically, and the output end is directly or indirectly connected to the top of the rotating part of the screw transmission mechanism.

The rotation reversing transmission mechanism is a worm gear transmission mechanism; the transverse rotating part is a worm, and the vertical rotating part is a worm gear; the worm gear is coaxially sleeved on the top periphery of the rotating part of the spiral transmission mechanism.

The rotation reversing transmission mechanism is a bevel gear reduction mechanism. The bevel gear reduction mechanism includes a bevel pinion gear and a bevel large gear that mesh with each other. The bevel pinion gear is a transverse rotating component and is coaxially sleeved on the output shaft of the drive motor. Outer circumference; the bevel gear is a vertical rotating part, coaxially sleeved on the top outer circumference of the rotating part of the spiral transmission mechanism.

The rotation reversing transmission mechanism is a gear shaft transmission mechanism.

The gear shaft transmission mechanism includes a driving gear, a gear shaft and a large gear.

The drive gear is a transverse rotating component, coaxially sleeved on the outer periphery of the output shaft of the drive motor.

The large gear is a vertical rotating component, coaxially sleeved on the outer periphery of the top of the rotating component of the spiral transmission mechanism.

The gear shaft is vertically rotated and installed in the mounting seat. The gear shaft is equipped with bevel gears and pinion gears coaxially from top to bottom; among them, the pinion gear meshes with the large gear; the bevel gear directly or indirectly meshes with the driving gear .

The driving gear is a driving bevel gear; the driving bevel gear directly meshes with the bevel gear.

The driving gear is a driving spur gear; the gear shaft transmission mechanism also includes a transition wheel shaft; the transition wheel shaft is set horizontally in the mounting seat; a transition wheel and a transition bevel gear are coaxially arranged on the transition wheel shaft; among them, the transition wheel is in phase with the driving spur gear Meshing, the transition bevel gear meshes with the bevel gear, thereby realizing the bevel gear indirectly meshing with the driving gear.

The screw transmission mechanism is a screw nut structure; when the rotating component is a screw, the lifting component is a nut; when the rotating component is a nut, the lifting component is a screw.

The top of the external lifting load is integrally provided with a load mounting seat, and the top of the load mounting seat is provided with a mounting plane; an arc-shaped block is provided directly below the lifting component of the spiral transmission mechanism, and the bottom surface of the arc-shaped block matches the top mounting plane of the load mounting seat. ; The top surface of the arc-shaped block matches the arc or spherical surface of the bottom surface of the lifting component; the directly below the lifting component and the arc-shaped block can be connected to the load mounting base through several bolts.

It also includes a guide mechanism; the guide mechanism includes a guide slide block and a slide rail; among them, the slide rail and the connecting seat are fixedly connected or integrated, and the guide slide block and the lifting component of the spiral transmission mechanism are designed to be integrated or detachably connected; the guide slide block It is adapted to the slide rail through the sliding pair.

A bending machine includes a frame, a slide block, a slide lift driving device and a bending die.

The rack includes two parallel rack side panels.

The slider is an external lifting load, and is slidably installed on the front side of the two rack side panels, and can be raised and lowered in height.

The bending die includes an upper bending die and a lower bending die; the upper bending die is set at the bottom of the slider, and the lower bending die is set on the frame directly below the upper bending die.

The slide lift driving device has two groups, which are symmetrically arranged on both sides of the slide, and are used to drive the height of the slide to rise and fall.

The structure of each set of slider lifting drive devices is a low-height compact standardized heavy-duty lifting drive module.

The utility model has the following beneficial effects:

1. The present invention can reduce the total height of each group of low-height compact standardized heavy-duty lifting drive modules (that is, the total height of the bending machine) by 200 to 300 mm, resulting in compact structure, small size, small space occupation, and easy transportation .

2. It has strong carrying capacity and can realize all-electric servo transmission of more than 80 tons. The cost can be effectively controlled and batch production can be achieved.

3. The low-height compact standardized heavy-duty lifting drive module is developed and manufactured as an independent standard module, which is conducive to cost control and quality control and is suitable for mass production. At the same time, it is easy to repair and interchange, which greatly improves the efficiency of processing and manufacturing.

4. The low-height compact standardized heavy-duty lifting drive module can be flexibly connected to the slider. The slider can be tilted, biased, and left and right out of sync without causing damage to the screw.

Description of drawings

Figure 1 shows the structural diagram of a low-height compact standardized heavy-duty lifting drive module without a coupling.

Figure 2 shows the structural diagram of a low-height compact standardized heavy-duty lifting drive module of the present application when it includes a coupling.

Figure 3 shows a structural diagram in which the rotational reversing transmission mechanism in this application is a worm gear transmission mechanism; (a) includes a coupling; (b) does not include a coupling; (c) does not include a coupling and has Transition gear.

Figure 4 shows a structural diagram in which the rotation reversing transmission mechanism in this application is a bevel gear reduction mechanism.

Figure 5 shows a diagram of the first embodiment in which the rotation reversing transmission mechanism in this application is a gear shaft transmission mechanism.

Figure 6 shows a diagram of the second embodiment in which the rotation reversing transmission mechanism in this application is a gear shaft transmission mechanism.

Figure 7 shows a diagram of the first embodiment of the screw transmission mechanism in this application.

Figure 8 shows a second embodiment of the screw transmission mechanism in this application.

Figure 9 shows the first structural diagram of the guide mechanism in this application.

Figure 10 shows the second structural diagram of the guide mechanism in this application.

Figure 11 shows a schematic diagram of the movable connection between the low-height compact standardized heavy-duty lifting drive module and the slider in this application.

Figure 12 shows a cross-sectional view of Figure 11.

Figure 13 shows the schematic diagram of the cooperation between the lifting component and the arc-shaped block; (a) is an arc surface fit; (b) is a spherical surface fit.

Figure 14 shows a schematic structural diagram of the bending machine in this application.

Including:

1. Sliding lifting drive device;

1-1. Power components;

1-1-1. Drive motor;

1-1-2a. Worm gear; 1-1-2b. Worm; 1-1-2c. Transition gear;

1-1-3a. Conical small gear; 1-1-3b. Conical large gear;

1-1-4a. Driving gear; 1-1-4b. Gear shaft; 1-1-4c. Bevel gear; 1-1-4d. Pinion gear; 1-1-4e. Transition wheel; 1-1-4f .Transition bevel gear; 1-1-4g. Large gear;

1-2. Connecting seat;

1-3-1. Rotating parts; 1-3-2. Lifting parts;

1-4-1. Guide slider; 1-4-2. Slide rail;

2-1. Frame side plate; 2-2. Slider; 2-3. Upper bending die; 2-4. Lower bending die;

3. Arc block; 3-1. Arc surface; 3-2. Spherical surface;

4. Bolt; 4-1. Spring; 4-2. Locking nut.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings and specific preferred embodiments.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "left side", "right side", "upper part", "lower part", etc. are based on the orientation or positional relationship shown in the drawings, and only It is for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and "first", "second", etc. do not mean zero. The importance of the components should not be construed as a limitation of the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the scope of protection of the present invention.

As shown in Figure 14, a bending machine includes a frame, a slider 2-2, a slider lifting drive device and a bending die.

The rack includes two parallel rack side plates 2-1.

The slider is an external lifting load, and is slidably installed on the front side of the two rack side panels, and can be raised and lowered in height.

The bending die includes an upper bending die 2-3 and a lower bending die 2-4; wherein the upper bending die is arranged at the bottom of the slider, and the lower bending die is arranged on the frame directly below the upper bending die.

The slide lift driving device has two groups, which are symmetrically arranged on both sides of the slide, and are used to drive the height of the slide to rise and fall.

Furthermore, the vertical axes of the two sets of slider lifting drive devices, that is, the vertical axes of the two sets of low-height compact standardized heavy-duty lifting drive modules, are respectively set on the plane where the slider is located and the plane where the corresponding side frame side plate is located. on the intersection line.

As shown in Figures 1 and 2, a low-height compact standardized heavy-duty lifting drive module, that is, a sliding lifting drive device 1, includes a power component 1-1, a connecting base 1-2 and a screw transmission mechanism.

As shown in Figures 7 and 8, the screw transmission mechanism includes a rotating component 1-3-1 and a lifting component 1-3-2; the lifting component is arranged vertically, and the bottom of the lifting component is connected to the external lifting load (i.e., the slider) , the lifting component is threaded with the rotating component; the rotating component is hingedly matched with the mounting base; the mounting base has a mounting plane for mounting with external equipment.

The screw transmission mechanism is preferably a trapezoidal screw, a ball screw, a planetary roller screw, etc.; in this application, the screw transmission mechanism is preferably a screw nut structure, including the following two embodiments.

First embodiment

As shown in Figure 7, the rotating component is a screw and the lifting component is a nut.

Second embodiment

As shown in Figure 8, the rotating component is a nut and the lifting component is a screw rod. The nut is hinged with the connecting seat, and the screw is connected with the slider. The advantage of the nut rotating and the screw lifting is that the structure is more compact and avoids the resonance problem of the screw.

Preferably, but not limited to, the rotating shaft of the servo motor can be made into a hollow structure in order to allow the screw to pass through the corresponding hollow structure during lifting. But it is also possible if the shaft of the servo motor is not a hollow structure.

As shown in Figures 3 to 6, the power component includes a drive motor 1-1-1 and a rotation reversing transmission mechanism located in the mounting base.

The drive motor is set horizontally.

The rotary reversing transmission mechanism includes directly or indirectly meshed transverse rotating parts and vertical rotating parts.

The transverse rotating member is arranged transversely, and the input end is directly or indirectly connected to the driving motor.

The vertical rotating part is arranged vertically, and the output end is directly or indirectly connected to the top of the rotating part of the screw transmission mechanism.

The above-mentioned horizontal direction is not absolutely horizontal, and the above-mentioned vertical direction is not absolutely vertical. If there is an inclination of 10 to 20°, it is also within the protection scope of this application.

In this application, the rotary reversing transmission mechanism preferably has the following four embodiments.

Example 1

As shown in (b) in Figure 3, the rotational reversing transmission mechanism is a worm gear transmission mechanism; the horizontal rotating part is the worm 1-1-2b, and the vertical rotating part is the worm gear 1-1-2a; the worm gears are coaxially sleeved On the outer periphery of the top of the rotating component of the screw transmission mechanism.

Further, as shown in (a) of Figure 3, the input end of the worm is preferably connected to the output shaft of the drive motor through a coupling 1-1-5.

Further, as shown in (c) in Figure 3, the output shaft of the drive motor is provided with a drive gear 1-1-4a coaxially sleeved. The worm is preferably installed horizontally in the connecting seat, and its input end is preferably coaxially sleeved with a drive gear 1-1-4a. Transition gear 1-1-2c, the transition gear and the driving gear mesh with each other, and the middle thread of the worm meshes with the worm gear.

Example 2

As shown in Figure 4, the rotation reversing transmission mechanism is a bevel gear reduction mechanism. The bevel gear reduction mechanism includes a bevel small gear 1-1-3a and a bevel large gear 1-1-3b that mesh with each other; The gear is a transverse rotating part, and the coaxial sleeve is set on the outer circumference of the output shaft of the driving motor; the bevel gear is a vertical rotating part, and the coaxial sleeve is set on the top outer circumference of the rotating part of the spiral transmission mechanism.

Example 3

The rotation reversing transmission mechanism is a gear shaft transmission mechanism.

As shown in Figure 5, the gear shaft transmission mechanism includes a driving gear 1-1-4a, a gear shaft 1-1-4b and a large gear 1-1-4g.

The drive gear is a transverse rotating component, coaxially sleeved on the outer periphery of the output shaft of the drive motor.

The large gear is a vertical rotating component, coaxially sleeved on the outer periphery of the top of the rotating component of the spiral transmission mechanism.

The gear shaft is vertically rotated and installed in the mounting seat. The bevel gear 1-1-4c and the pinion gear 1-1-4d are coaxially arranged on the gear shaft from top to bottom; among them, the pinion gear meshes with the large gear; the drive The gear is a driving bevel gear, and the bevel gear directly meshes with the driving gear.

Example 4

As shown in Figure 6, the rotation reversing transmission mechanism is a gear shaft transmission mechanism, and the structure is basically the same as that of Embodiment 3. The difference is that: the driving gear is a driving spur gear; the gear shaft transmission mechanism also includes a transition axle; the transition axle is horizontally arranged on Inside the mounting seat; the transition wheel shaft is coaxially equipped with a transition wheel 1-1-4e and a transition bevel gear 1-1-4f; among them, the transition wheel meshes with the driving spur gear, and the transition bevel gear meshes with the bevel gear. This allows the bevel gear to mesh indirectly with the drive gear.

As an alternative, the rotation reversing transmission mechanism can also be a planetary gear reduction mechanism, etc., which is also within the protection scope of this application.

As shown in Figure 9, a low-height compact standardized heavy-duty lifting drive module also includes a guide mechanism that can increase transmission stability; the guide mechanism includes a guide slider 1-4-1 and a slide rail 1-4-2; Among them, the slide rail and the connecting seat are fixedly connected or integrated, the guide slide block and the lifting component of the spiral transmission mechanism are integrated or detachably connected; the guide slide block and the slide rail are adapted through a sliding pair.

In Figure 9, the slide rail is a linear slide rail. As an alternative, the slide rail can also be a cylindrical sleeve as shown in Figure 10, which is preferably bolted to the connecting seat to be integrated; the guide slide block can be designed to be integrated with the spiral transmission component. Bolt connections are also possible. A cylindrical surface guide is formed between the guide slide block and the guide rail. Furthermore, the guide mechanism is not limited to the specific shape proposed in this case. Other known existing technologies such as linear guides, cylindrical guides, and dovetail guides are within the scope of rights protection and are considered equivalent replacements.

As shown in Figures 11 and 12, the top of the external lifting load (that is, the slider) is integrally provided with a load mounting seat, and the top of the load mounting seat is provided with a mounting plane; an arc block 3 is provided directly below the lifting component of the screw transmission mechanism. The bottom surface of the arc-shaped block matches the top mounting plane of the load mounting base; the top surface of the arc-shaped block matches the bottom surface of the lifting component through the arc surface 3-1 or the spherical surface 3-2 shown in Figure 13.

The lifting component and the arc-shaped block are preferably connected to the load mounting base through several bolts 56, and are locked at the bottom by locking nuts 4-2; each bolt between the arc-shaped block and the locking nut is preferably The sleeve is provided with a spring 4-1 that plays a buffering role.

The advantage of this arrangement is that the slider lifting drive device of the present application is movablely connected to the slider, and the slider can be tilted, unbalanced, and left and right unsynchronized without causing damage to the screw: the lifting component (preferably a nut here) The lower part is provided with an arc-shaped profile, which is adapted to the arc-shaped surface of the upper part of the arc-shaped block, and the lower part of the arc-shaped block is adapted to the mounting planes of the two shoulders of the slider. The bolts pass through the round holes on the shoulder of the slider in sequence, and the round holes of the arc-shaped block are fixedly connected to the lifting components. The lower part of the bolt is connected from bottom to top through the lock nut and the spring to "lift" the slider and balance the gravity of the slider.

The preferred embodiments of the present utility model have been described in detail above. However, the present utility model is not limited to the specific details in the above-mentioned embodiments. Within the scope of the technical concept of the present utility model, various equivalent transformations can be made to the technical solutions of the present utility model. , these equivalent transformations all belong to the protection scope of the present utility model.

Claims (10)

1. A low-height compact standardized heavy-load lifting drive module is characterized in that: comprises a power component, a connecting seat and a spiral transmission mechanism;

the spiral transmission mechanism comprises a rotating component and a lifting component; the lifting component is vertically arranged, the bottom of the lifting component is connected with an external lifting load, and the lifting component is matched with the screw thread pair of the rotating component; the rotating component is hinged and matched with the mounting seat; the mounting seat is provided with a mounting plane which is mounted with external equipment;

the power component comprises a driving motor and a rotary reversing transmission mechanism;

the driving motor is horizontally arranged;

the rotary reversing transmission mechanism comprises a transverse rotating piece and a vertical rotating piece which are directly or indirectly meshed;

the transverse rotating piece is transversely arranged, and the input end of the transverse rotating piece is directly or indirectly connected with the driving motor;

the vertical rotating piece is vertically arranged, and the output end is directly or indirectly connected with the top end of the rotating part of the spiral transmission mechanism.

2. The low-height compact standardized heavy-duty hoist drive module of claim 1, characterized in that: the rotary reversing transmission mechanism is a worm and gear transmission mechanism; the transverse rotating piece is a worm, and the vertical rotating piece is a worm wheel; the worm wheel is coaxially sleeved on the periphery of the top end of the rotating part of the screw transmission mechanism.

3. The low-height compact standardized heavy-duty hoist drive module of claim 1, characterized in that: the rotary reversing transmission mechanism is a conical gear reduction mechanism, and the conical gear reduction mechanism comprises a conical pinion and a conical bull gear which are meshed with each other; the conical pinion is a transverse rotating piece and coaxially sleeved on the periphery of an output shaft of the driving motor; the conical large gear is a vertical rotating piece and is coaxially sleeved on the periphery of the top end of a rotating part of the spiral transmission mechanism.

4. The low-height compact standardized heavy-duty hoist drive module of claim 1, characterized in that: the rotary reversing transmission mechanism is a gear shaft transmission mechanism;

the gear shaft transmission mechanism comprises a driving gear, a gear shaft and a large gear;

the driving gear is a transverse rotating piece and coaxially sleeved on the periphery of an output shaft of the driving motor;

the large gear is a vertical rotating piece and coaxially sleeved on the periphery of the top end of a rotating part of the spiral transmission mechanism;

the gear shaft is vertically rotatably arranged in the mounting seat, and a bevel gear and a pinion are sequentially and coaxially sleeved on the gear shaft; wherein the pinion is meshed with the bull gear; the bevel gear is directly or indirectly meshed with the driving gear.

5. The low-height compact standardized heavy-duty hoist drive module of claim 4, characterized in that: the driving gear is a driving bevel gear; the drive bevel gear is directly engaged with the bevel gear.

6. The low-height compact standardized heavy-duty hoist drive module of claim 4, characterized in that: the driving gear is a driving spur gear; the gear shaft transmission mechanism also comprises a transition wheel shaft; the transition wheel shaft is horizontally arranged in the mounting seat; a transition wheel and a transition bevel gear are coaxially and sequentially sleeved on the transition wheel shaft; the transition wheel is meshed with the driving straight gear, and the transition bevel gear is meshed with the bevel gear, so that the bevel gear is indirectly meshed with the driving gear.

7. The low-height compact standardized heavy-duty hoist drive module of claim 1, characterized in that: the screw transmission mechanism is of a screw rod nut structure; when the rotating part is a screw rod, the lifting part is a nut; when the rotating part is a nut, the lifting part is a screw rod.

8. The low-height compact standardized heavy-duty hoist drive module of claim 1, characterized in that: the load installation seat is integrally arranged at the top of the external lifting load, and the installation plane is arranged at the top of the load installation seat; an arc block is arranged right below the lifting part of the spiral transmission mechanism, and the bottom surface of the arc block is matched with the top mounting plane of the load mounting seat; the top surface of the arc-shaped block is matched with the cambered surface or the spherical surface of the bottom surface of the lifting part; the right lower part of the lifting part and the arc-shaped block can be connected with the load mounting seat through a plurality of bolts.

9. The low-height compact standardized heavy-duty hoist drive module of claim 1, characterized in that: the device also comprises a guide mechanism; the guide mechanism comprises a guide sliding block and a sliding rail; the guide sliding block is integrally designed with or detachably connected with the lifting part of the spiral transmission mechanism; the guide sliding block is matched with the sliding rail through a sliding pair.

10. A bending machine, characterized in that: comprises a frame, a sliding block lifting driving device and a bending die;

the rack comprises two rack side plates which are arranged in parallel;

the sliding blocks are external lifting loads, are slidably arranged on the front side surfaces of the two frame side plates, and can be lifted up and down in height;

the bending die comprises a bending upper die and a bending lower die; the bending upper die is arranged at the bottom of the sliding block, and the bending lower die is arranged on the frame right below the bending upper die;

the sliding block lifting driving device is provided with two groups which are symmetrically arranged at two sides of the sliding and used for driving the sliding to lift at a height;

the structure of each group of sliding block lifting driving device is a low-height compact standardized heavy-load lifting driving module as claimed in any one of claims 1-9.