CN214946115U

CN214946115U - Parallel driving device

Info

Publication number: CN214946115U
Application number: CN202120141429.8U
Authority: CN
Inventors: 俞正明; 毛永泉; 陶华
Original assignee: Arctech Solar Holding Co Ltd
Current assignee: Arctech Solar Holding Co Ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-11-30
Anticipated expiration: 2031-01-19

Abstract

The utility model discloses a parallel drive device, include: a first transmission member; the second transmission piece is meshed and connected with the first transmission piece in the vertical direction; the third transmission piece is coaxially and fixedly connected with the first transmission piece; the fourth transmission piece is positioned on the upper side of the third transmission piece and is meshed with the third transmission piece, and the fourth transmission piece and the third transmission piece are arranged in parallel along the axial direction; the fifth transmission piece is coaxially and fixedly connected with the fourth transmission piece; the sixth transmission piece is positioned on the upper side of the fifth transmission piece and is meshed and connected with the fifth transmission piece in the vertical direction; both ends of the sixth transmission piece along the axial direction are respectively detachably connected with an installation piece; the sixth transmission part is arranged above the second transmission part and is parallel to the second transmission part along the axial direction. The photovoltaic parallel driving device is simple in structure, convenient to install, low in cost, convenient to maintain, capable of improving reliability and beneficial to stably achieving parallel driving.

Description

Parallel driving device

Technical Field

The utility model belongs to the technical field of the photovoltaic support, a parallel drive device is related to.

Background

In the driving tracking system of the photovoltaic support, because the stability and the wind resistance of the single-driving tracking system are not strong, the multi-point synchronous driving solar tracking system is more and more applied in the field of the photovoltaic tracking support. However, in most multipoint synchronous driving devices, the driving shaft and the output shaft are usually in a non-parallel state, which brings a certain blocking risk to the system operation. If the problem needs to be solved, a plurality of external reversing mechanisms are usually required to be hung, and negative influence is brought to the reliability of the system.

Therefore, there is a need in the art to provide a parallel driving apparatus that has a simple structure, is easy to install, has a low cost, is easy to maintain, has improved reliability, and facilitates stable implementation of parallel driving.

Disclosure of Invention

The utility model aims at providing an among the above-mentioned prior art not enough, provide a structure succinct, be convenient for installation, the cost is lower, and be convenient for maintain, promote the reliability, be favorable to stably realizing parallel drive's photovoltaic parallel drive device. Specifically, the parallel driving device adopts a scheme of driving a motor and a gear box with a synchronizing shaft, the parallel state is simply realized, and the driving device has the advantages of convenience in installation, cost, convenience in maintenance and the like compared with the single motor and worm gear box rotary driving.

The utility model discloses a parallel drive device, the technical scheme who adopts as follows:

a parallel drive apparatus comprising:

a first transmission member;

the second transmission piece is meshed and connected with the first transmission piece in the vertical direction;

the third transmission piece is coaxially and fixedly connected with the first transmission piece;

the fourth transmission piece is positioned on the upper side of the third transmission piece and is meshed with the third transmission piece, and the fourth transmission piece and the third transmission piece are arranged in parallel along the axial direction;

the fifth transmission piece is coaxially and fixedly connected with the fourth transmission piece;

the sixth transmission piece is positioned on the upper side of the fifth transmission piece and is meshed and connected with the fifth transmission piece in the vertical direction; both ends of the sixth transmission piece along the axial direction are respectively detachably connected with an installation piece; the sixth transmission part is arranged above the second transmission part and is parallel to the second transmission part along the axial direction.

Preferably, the driving motor is in transmission connection with at least one transmission member of the first transmission member, the second transmission member, the third transmission member, the fourth transmission member and the fifth transmission member.

Further, the method also comprises the following steps: and the driving motor is in transmission connection with at least one transmission piece of the first transmission piece, the second transmission piece, the third transmission piece, the fourth transmission piece and the fifth transmission piece through the planetary gear piece.

In a preferred embodiment, the second transmission member is located below the first transmission member.

Furthermore, the driving motor is arranged at one end of the third transmission member far away from the first transmission member, or at one end of the first transmission member far away from the third transmission member.

Further, the driving motor is arranged at any end of the second transmission piece along the axial direction.

Furthermore, the first transmission piece and the second transmission piece are cylindrical gear shafts, and the first transmission piece and the second transmission piece are meshed in a vertically staggered manner at an angle of 90 degrees.

In a preferred embodiment, the second transmission member and the first transmission member have no height difference in the height direction.

Furthermore, the first transmission piece and the second transmission piece are bevel gear shafts, and are meshed and connected at 90 degrees.

In a preferred embodiment, the third transmission member and the fourth transmission member are cylindrical gears, and are engaged with each other in an axially parallel manner.

In a preferred embodiment, the fifth transmission member is a torus worm, the sixth transmission member is a fan-shaped worm gear shaft, and the torus worm is in meshing transmission with a fan-shaped worm gear on the fan-shaped worm gear shaft.

In a preferred embodiment, one end of the fifth transmission member is provided as a tapered end, and the tapered end is connected with the fourth transmission member.

In a preferred embodiment, the first transmission element and the third transmission element are each arranged at the shaft end by a spline connection.

In a preferred embodiment, the fifth transmission member, the sixth transmission member and the first transmission member are located on the same side of the plane where the fourth transmission member and the third transmission member are located.

As a preferred embodiment, the method further comprises: the first transmission piece, the second transmission piece, the third transmission piece, the fourth transmission piece, the fifth transmission piece and the sixth transmission piece are arranged in the gear box; and the planetary gear member is internally or externally arranged in the gear box.

Further, the planetary gear member is internally or externally arranged in the gear box.

Furthermore, the first transmission piece and the second transmission piece form a first meshing cavity in the gear box, the third transmission piece and the fourth transmission piece form a second meshing cavity in the gear box, the fifth transmission piece and the sixth transmission piece form a third meshing cavity in the gear box, and each meshing cavity on the gear box is respectively provided with at least one grease injection port.

The utility model discloses can bring following beneficial effect:

1) through the arrangement and matching of the plurality of transmission parts, the second transmission part and the sixth transmission part are mutually parallel along the axial direction, a main shaft is arranged in the sixth transmission part which is relatively positioned at the upper side and can drive the main shaft to rotate, and a photovoltaic panel is arranged on the main shaft and drives the photovoltaic panel to rotate along with the main shaft; the second transmission part positioned below has the function of a synchronous shaft and is used as the parallel output of the other path, so that the solar tracking system can be applied to a multipoint synchronous driving solar tracking system, and stable parallel driving is realized.

2) The utility model discloses well driving motor can arrange in a flexible way, has saved the assembly space of parallel drive device in the support is trailed to the photovoltaic.

3) The utility model discloses in each driving medium arrange in the gear box, first, two driving mediums rely on in the lower floor of third driving medium relative arrangement at the gear box, fifth, six driving mediums rely on in fourth driving medium relative arrangement on the upper strata for two-layer arranging about forming respectively makes the gear box rigidity better, can effectively reduce the deformation of gear box structure in the use, and can reduce gear box weight reduce cost.

4) The utility model discloses each driving medium can form three independent fat lubrication chamber in the gear box: the vertical engaging cavities of the first transmission piece and the second transmission piece, the parallel engaging cavities of the third transmission piece and the fourth transmission piece, and the vertical engaging cavities of the fifth transmission piece and the sixth transmission piece; each cavity is isolated by an oil seal and is provided with an independent grease injection port, so that the using amount of lubricating grease is greatly saved, the integral lubrication and effective sealing are ensured, the cost is reduced, and the maintenance-free time is longer.

5) The utility model discloses well sixth driving medium can dismantle respectively along axial both ends and be connected with the installed part, through chooseing for use different installed parts, can adapt to the installation of various different specification and dimension main shafts, and do not receive in the sixth driving medium for example the size influence of worm wheel.

In conclusion, the parallel driving device of the utility model adopts the driving motor and the gear box with the synchronous shaft, thereby realizing the series driving in the north-south direction, having strong terrain adaptability and stronger reliability; and the installation basis of the parallel driving device can be directly installed on the upright post, so that the installation is convenient.

Drawings

Fig. 1 is a structural diagram of an embodiment of the parallel driving apparatus of the present invention.

Fig. 2 is a front view of the embodiment of fig. 1.

Fig. 3 is a cross-sectional view of fig. 2.

Fig. 4 is a top view of the embodiment of fig. 1.

Fig. 5 is a side view of the embodiment of fig. 1.

FIG. 6 is a perspective view of the embodiment of FIG. 1 with a gear box.

Fig. 7 is a structural diagram of another embodiment of the parallel driving apparatus of the present invention.

Fig. 8 is a front view of the embodiment of fig. 7.

Fig. 9 is a cross-sectional view of fig. 8.

Fig. 10 is a top view of the embodiment of fig. 7.

Fig. 11 is a side view of the embodiment of fig. 7.

FIG. 12 is a perspective view of the embodiment of FIG. 7 with a gear box.

Fig. 13 is a structural view of still another embodiment of the parallel drive apparatus of the present invention.

Fig. 14 is a front view of the embodiment of fig. 13.

Fig. 15 is a cross-sectional view of fig. 14.

Fig. 16 is a top view of the embodiment of fig. 13.

Fig. 17 is a side view of the embodiment of fig. 13.

FIG. 18 is a perspective view of the embodiment of FIG. 13 with a gear box.

The meaning of each mark in the figure is:

1-a first transmission member; 2-a second transmission member; 3-a third transmission member; 4-a fourth transmission member; 5-a fifth transmission member; 6-sixth transmission, 60-mount; 7-driving a motor; 8-a planetary gear member; 9-gear box, 90-mounting seat; p-grease injection port.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to provide a thorough understanding of the present application, and in the accompanying drawings, preferred embodiments of the present application are set forth. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

As shown in fig. 1 to 5, 7 to 11, and 13 to 17, there is provided a parallel driving apparatus comprising: a first transmission member 1; the second transmission piece 2 is positioned at the lower side of the first transmission piece 1 and is meshed and connected with the first transmission piece 1 in the vertical direction; the third transmission piece 3 is coaxially and fixedly connected with the first transmission piece 1 to synchronously rotate; the fourth transmission piece 4 is positioned on the upper side of the third transmission piece 3 and is meshed with the third transmission piece 3, and the fourth transmission piece 4 and the third transmission piece 3 are arranged in parallel along the axial direction; the fifth transmission piece 5 is coaxially and fixedly connected with the fourth transmission piece 4, and the fifth transmission piece 5 is axially parallel to the first transmission shaft 1 or the third transmission shaft 3; a sixth transmission member 6 located on the upper side of the fifth transmission member 5 and engaged with the fifth transmission member 5 in the vertical direction; with further reference to the embodiment shown in fig. 1 to 6, the mounting members (not shown) are detachably connected to both ends of the sixth transmission member 6 along the axial direction; the sixth transmission member 6 is disposed above the second transmission member 2 and parallel to each other along the axial direction.

In this embodiment, functionally, the second transmission member 2 and the sixth transmission member 6 are parallel to each other in the axial direction by arranging and matching the plurality of transmission members, so that the parallel driving of the two members can be realized. In practical application, the sixth transmission piece 6 is arranged above the second transmission piece 2, a main shaft is arranged in the sixth transmission piece 6 and can drive the main shaft to rotate, and a photovoltaic panel is arranged on the main shaft and drives the photovoltaic panel to rotate along with the main shaft; the second transmission part 2 has the function of a synchronous shaft, is arranged below the sixth transmission part 6 and is used as the parallel output of the other path, and can react on the main shaft through a power reversing structure to form a multi-point synchronous driving solar tracking system, and the sixth transmission part 6 can be arranged right above the second transmission part 2, so that the parallel driving of the second transmission part and the multi-point synchronous driving solar tracking system is more stable, the installation in a photovoltaic tracking support system is facilitated, and the reliability is improved; furthermore, the mounting parts are detachably connected to two ends of the sixth transmission part 6 along the axial direction, so that the mounting device can be adapted to mounting of spindles (such as spindles with circular tubes, square tubes and D-shaped tube structures) of various specifications and sizes, and is not affected by the size of the sixth transmission part 6. Of course, as shown in the embodiment shown in fig. 7 and 13, the mounting member 60 may be integrally connected to both ends of the sixth transmission member 6 in the axial direction.

Example 2

On the basis of embodiment 1, the parallel driving device further includes a driving motor 7 as a power source, and the driving motor 7 is in transmission connection with at least one of the first transmission member 1, the second transmission member 2, the third transmission member 3, the fourth transmission member 4, and the fifth transmission member 5.

On the basis of the arrangement of the driving motor 7, the parallel driving device further comprises a planetary gear piece 8, and the driving motor 7 is in transmission connection with at least one transmission piece of the first transmission piece 1, the second transmission piece 2, the third transmission piece 3, the fourth transmission piece 4 and the fifth transmission piece 5 through the planetary gear piece 8. Through setting up planetary gear spare 8, make driving motor 7's drive torque enlarge through planetary gear speed reduction, the transmission route is short, and efficiency is higher. Preferably, the planet carrier of the planetary gear member 8 is in toothed connection with the associated transmission member to drive the corresponding transmission member to rotate synchronously. Specifically, the planetary gear member 8 is provided as a multi-stage planetary gear set, such as a three-stage planetary gear set, and more preferably, a four-stage planetary gear set. The first-stage sun gear of the multi-stage planetary gear set is connected with the driving motor, and the last-stage planet carrier of the multi-stage planetary gear set is in tooth connection with the transmission part connected with the last-stage sun gear.

From overall construction, each driving medium sets up in gear box 9, and first driving medium 1, second driving medium 2 rely on third driving medium 3 relative arrangement in the lower floor of gear box 9, and fifth driving medium 5, sixth driving medium 6 rely on fourth driving medium 4 relative arrangement in the upper strata of gear box 9 for gear box 9 forms two-layer upper and lower and arranges, makes the box rigidity better, can effectively reduce the deformation of gear box structure in the use, and can reduce gear box weight reduce cost. Preferably, the first transmission member 1 and the second transmission member 2 form a first engagement cavity in the gear box 9, the third transmission member 3 and the fourth transmission member 4 form a second engagement cavity in the gear box 9, the fifth transmission member 5 and the sixth transmission member 6 form a third engagement cavity in the gear box 9, and each engagement cavity on the gear box 9 is provided with at least one grease injection port P. Thus, this arrangement forms three separate grease lubrication chambers: the vertical meshing cavities of the first transmission piece 1 and the second transmission piece 2, the parallel meshing cavities of the third transmission piece 3 and the fourth transmission piece 4, and the vertical meshing cavities of the fifth transmission piece 5 and the sixth transmission piece 6 can be isolated by oil seals, and are provided with independent grease injection ports P (as shown in figures 6, 12 and 18), so that the using amount of lubricating grease is greatly saved, the integral lubrication and effective sealing are ensured, the cost is reduced, and the maintenance-free time is longer.

In order to make the structure of the whole device more compact and simpler, the fifth transmission member 5, the sixth transmission member 6 and the first transmission member 1 are all located on the same side of the plane where the fourth transmission member 4 and the third transmission member 3 are located.

In addition, the planetary gear member 8 may be alternatively built-in or built-out of the gear case 9. When the design in the selection, because multistage planetary gear set embeds in gear box 9, do not occupy unnecessary space, can also receive the effective protection of gear box simultaneously, it is able to bear the weather and the leak protection effect is effectively strengthened. In addition, the gear box 9 is further provided with a mounting seat 90 with a mounting hole, and the mounting seat can be directly mounted on a stand column of the photovoltaic tracking support system, so that the mounting seat is convenient to fix.

Among them, there are various schemes regarding the arrangement of the driving motor 7:

one embodiment is: as shown in fig. 1 to 3, the second transmission member 2 is located at the lower side of the first transmission member 1, and the driving motor 7 is in toothed connection with either end of the second transmission member 2 through the planetary gear member 8, i.e. the driving motor 7 can be arranged at any side in the north-south direction, so that the assembly space of the parallel driving device in the photovoltaic tracking bracket is saved. The first transmission piece 1 and the second transmission piece 2 are cylindrical gear shafts, preferably helical gear cylindrical gear shafts, and are in up-and-down staggered meshed connection of 90 degrees. In this embodiment, the driving motor 7 is disposed on one side of the second transmission member 2 along a direction parallel to the axial direction of the sixth transmission member 6, which is also beneficial to improving the compactness of the whole structure. When n planetary gear pieces 8 are arranged on a row of photovoltaic supports, the power of the driving motor is about (n-1)/n and is parallelly transferred to the planetary gear pieces 8 in the gear box at the other side from the shaft end at the other side of the helical gear cylindrical gear shaft through the second transmission piece 2; about 1/n of the power is transmitted to the third transmission member 3 to form a multi-point drive.

The other implementation mode is as follows: referring to fig. 7-9, the second transmission member 2 is located at the lower side of the first transmission member 1, the driving motor 7 is connected to the end of the first transmission member 1 far away from the third transmission member 3 through the planetary gear member 8 in a tooth-like manner, and the first transmission member 1 and the second transmission member 2 are both cylindrical gear shafts, preferably helical gear cylindrical gear shafts, and the two are in 90 ° up-down staggered meshing connection to form a cylindrical gear shaft pair. In this embodiment, the driving motor 7 is disposed on one side of the first transmission member 1 along a direction parallel to the axial direction of the fifth transmission member 5, so as to further improve the compactness of the overall structure. When n planetary gear pieces 8 are arranged on one row of photovoltaic supports, the power of the driving motor about (n-1)/n is parallelly transferred to the planetary gear pieces 8 in the gear boxes at two ends from the shaft ends at two sides of the helical gear cylindrical gear shaft through the second transmission piece 2; about 1/n of the power is transmitted to the third transmission member 3 to form a multi-point drive.

For the two approaches described above: the staggered cylindrical gear pairs of the first transmission piece 1 and the second transmission piece 2 have center distances in the height direction, and the center distances of the second transmission piece and the sixth transmission piece can be effectively enlarged, so that the center distance requirements of photovoltaic support system installation can be met.

Yet another embodiment is: as shown in fig. 13-15, the second transmission member 2 has no height difference with the first transmission member 1 along the height direction, and the driving motor 7 is connected with either end of the second transmission member 2 in a tooth type through the planetary gear member 8, that is, the driving motor 7 can be arranged on either side of the north-south direction, so that the assembly space of the parallel driving device in the photovoltaic tracking bracket is saved. The first transmission piece 1 and the second transmission piece 2 are bevel gear shafts which are meshed and connected at 90 degrees to form a bevel gear shaft pair. Preferably, the transmission ratio of the cylindrical gears on the first transmission piece 1 and the second transmission piece 2 is 1: 1. In practical application, the first transmission piece 1 and the second transmission piece 2 adopt bevel gears with the same specification, so that the types of the gears are effectively reduced, and the cost is reduced. In the present embodiment, the driving motor 7 is provided on one side of the second transmission member 2 along a direction parallel to the axial direction of the sixth transmission member 6, and the compactness of the entire structure can be promoted. When n planetary gear pieces 8 are arranged on a row of photovoltaic supports, the power of the driving motor is about (n-1)/n and is parallelly transferred to the planetary gear pieces 8 in the gear box at the other side from the shaft end at the other side of the helical gear cylindrical gear shaft through the second transmission piece 2; about 1/n of the power is transmitted to the third transmission member 3 to form a multi-point drive. It should be noted that the arrangement manner of the driving motor 7 is not limited to the above embodiments, for example, the driving motor 7 may also be connected to one end of the third transmission member 3 away from the first transmission member 1, or connected to the fourth transmission member 4 in a driving manner, or connected to the fifth transmission member 5 in a driving manner, and may be adaptively adjusted according to requirements; of course, the number of the driving motors 7 is not limited to one, and may be combined in various embodiments according to the requirement, thereby being more flexible and convenient in structural arrangement. This is not repeated here.

Example 3

On the basis of embodiment 1 or embodiment 2, the third transmission member 3 and the fourth transmission member 4 are cylindrical gears, and are engaged and connected in parallel in the axial direction to form a cylindrical gear pair parallel to each other. The first transmission piece 1 and the third transmission piece 3 are respectively arranged at the shaft ends through key connection. Specifically, one end of the first transmission member 1 is connected to the cylindrical gear of the third transmission member 3 and rotates coaxially with the third transmission member 3. Preferably, the radial dimension of the cylindrical gear on the third transmission member 3 is smaller than that of the cylindrical gear on the fourth transmission member 4, and the driving motor 7 is connected with the third transmission member 3 and transmits power to a gear pair formed by the third transmission member 3 and the fourth transmission member 4 when the driving motor 7 drives, so that the effect of amplifying torque is achieved through the cylindrical gear pair.

The fifth transmission part 5 is a toroidal worm, the transmission ratio of the toroidal worm is large, more teeth are in contact with and stressed at the same time compared with a cylindrical worm, the bearing capacity is stronger, and meanwhile, the self-locking performance of the toroidal worm is excellent and the use is reliable; the sixth transmission piece 6 is a fan-shaped worm wheel shaft; the enveloping worm is in meshing transmission with a fan-shaped worm wheel on a fan-shaped worm wheel shaft, a formed enveloping worm gear pair has a large reduction ratio and can form reverse self-locking, a main shaft in the worm wheel is driven to rotate through torque amplification, and a photovoltaic panel is arranged on the main shaft and drives the photovoltaic panel to generate electricity towards the sun.

One end of the fifth transmission member 5 is set to be a taper shaft end, and the taper shaft end of the fifth transmission member 5 is fixedly connected with the fourth transmission member 4. The taper connection facilitates the batch installation and production of the enveloping worm by connecting the tapered end with the fourth transmission member 4.

In addition, in practical applications, referring further to fig. 1, the mounting member can be detachably connected to a flange (not shown) at an end of a worm wheel shaft (not shown) of the sixth transmission member 6 through a fastening member, so that the mounting member can be conveniently detached to adapt to the installation of spindles (such as spindles with circular tubes, square tubes, and D-shaped tube structures) with different specifications and dimensions without being affected by the size of the worm wheel of the sixth transmission member 6.

Alternatively, referring to fig. 7 and 13, the mounting member 60 may be integrally connected to the end of the worm wheel shaft of the sixth transmission member 6, or may be integrally connected to the end face of the worm wheel of the sixth transmission member 6. The mounting member 60 may have different structures according to the specification of the spindle to be matched, for example, a circular tube, a square tube, a D-tube structure, etc.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A parallel drive apparatus, comprising:

a first transmission member;

the fourth transmission piece is positioned on the upper side of the third transmission piece and is meshed and connected with the third transmission piece, and the fourth transmission piece and the third transmission piece are arranged in parallel along the axial direction;

the sixth transmission piece is positioned on the upper side of the fifth transmission piece and is meshed and connected with the fifth transmission piece in the vertical direction, and two ends of the sixth transmission piece along the axial direction are respectively detachably connected with mounting pieces;

the sixth transmission piece is arranged above the second transmission piece and is parallel to the second transmission piece along the axial direction.

2. The parallel drive apparatus of claim 1, further comprising:

and the driving motor is in transmission connection with at least one transmission piece of the first transmission piece, the second transmission piece, the third transmission piece, the fourth transmission piece and the fifth transmission piece.

3. The parallel drive apparatus of claim 2, further comprising:

and the driving motor is in transmission connection with at least one transmission piece of the first transmission piece, the second transmission piece, the third transmission piece, the fourth transmission piece and the fifth transmission piece through the planetary gear piece.

4. A parallel drive apparatus according to claim 2 or 3, wherein:

the second transmission piece is positioned on the lower side of the first transmission piece.

5. The parallel drive apparatus of claim 4, wherein:

the driving motor is arranged at one end of the third transmission piece far away from the first transmission piece, or at one end of the first transmission piece far away from the third transmission piece.

6. The parallel drive apparatus of claim 4, wherein:

the driving motor is arranged at any end of the second transmission piece along the axial direction.

7. The parallel drive apparatus according to claim 5 or 6, wherein:

the first transmission piece and the second transmission piece are cylindrical gear shafts, and the first transmission piece and the second transmission piece are meshed in a vertically staggered manner at an angle of 90 degrees.

8. A parallel drive apparatus according to claim 2 or 3, wherein:

the second transmission piece and the first transmission piece have no height difference along the height direction.

9. The parallel drive apparatus of claim 8, wherein:

10. The parallel drive apparatus of claim 9, wherein:

the first transmission piece and the second transmission piece are bevel gear shafts which are in 90-degree meshed connection.

11. The parallel drive apparatus of claim 1, wherein:

the third transmission piece and the fourth transmission piece are both cylindrical gears and are in axial parallel meshing connection;

and/or;

the fifth transmission part is a ring surface worm, the sixth transmission part is a fan-shaped worm wheel shaft, and the ring surface worm is in meshing transmission with a fan-shaped worm wheel on the fan-shaped worm wheel shaft;

and/or;

one end of the fifth transmission member is arranged to be a cone shaft end, and the cone shaft end is fixedly connected with the fourth transmission member;

and/or;

the first transmission piece and the third transmission piece are arranged at the shaft end through key connection respectively;

and/or;

the fifth transmission piece, the sixth transmission piece and the first transmission piece are all located on the same side of the plane where the fourth transmission piece and the third transmission piece are located.

12. The parallel drive apparatus of claim 3, further comprising:

the first transmission piece, the second transmission piece, the third transmission piece, the fourth transmission piece, the fifth transmission piece and the sixth transmission piece are arranged in the gear box; and the planetary gear member is internally or externally arranged in the gear box.