Photovoltaic glass dual-power interchange steering conveyor

Abstract

The invention provides a photovoltaic glass dual-power interchange steering conveyor, and belongs to the technical field of photovoltaic glass production equipment. The device comprises a machine frame, a main transmission assembly, an interchange movement assembly and a belt conveying assembly arranged on the interchange transmission assembly are arranged on the top installation face of the machine frame, and the conveying direction of the main transmission assembly is arranged in the first direction. The main transmission assembly can convey glass in the first direction, and after the interchange movement assembly drives the belt conveying assembly to move to the upper side of the main transmission assembly, the belt conveying assembly can jack up the glass so as to drive the glass to be conveyed in the second direction, so that 90-degree steering conveying of the glass is achieved. The interchange movement assembly and the belt conveying assembly are arranged in the overall frame of the rack 1, so that the overall size of the equipment can be reduced, and the belt conveying assembly can be prevented from affecting installation of follow-up equipment when the installation space of the equipment is limited.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic glass production equipment and relates to a photovoltaic glass double-power overpass turning conveyor. Background Art

[0002] The photovoltaic industry is a rapidly emerging sunrise industry that integrates and develops based on semiconductor technology and new energy demands. Currently, during the production of the original sheet, the shuttle transports the cut thin plates to the roller table of the large continuous line, and then through overpass transplantation, the thin plates are transported to the main line and branch lines. The real-time overpass turning of the glass will be an essential part. Currently, the overpass turning machines in the industry have the following problems: The two ends of the belt conveying component connected to the overpass moving component extend outward beyond the two ends of the frame. For sites with installation space limitations, it will affect the installation and placement of subsequent equipment, and there is a risk of collision between the belt transmission component and the frame when it descends.

[0003] For example, the Chinese patent discloses a flat glass combined overpass transplantation conveying device [Application No.: 202223378108.3], which includes a fixed roller table component, two belt conveying components, and two overpass moving components. The two belt conveying components are sequentially arranged on the fixed roller table component along the first direction, and the two overpass moving components are respectively connected to the two belt conveying components. The overpass moving component is used to drive the belt conveying component to be close to or away from the fixed roller table component. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems and provide a photovoltaic glass double-power overpass turning conveyor.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A photovoltaic glass double-power overpass turning conveyor includes a frame. On the top mounting surface of the frame, there are arranged a main transmission component, an overpass moving component, and a belt conveying component arranged on the overpass transmission component. The transmission direction of the main transmission component is set along the first direction, the transmission direction of the belt conveying component is set along the second direction, and the first direction is perpendicular to the second direction. The overpass moving component and the belt conveying component are arranged inside the overall frame of the frame and below the main transmission component, and the overpass moving component can drive the belt conveying component to move above the main transmission component.

[0007] In the above-mentioned photovoltaic glass double-power overpass turning conveyor, the main transmission assembly includes two roller conveyor components symmetrically arranged on the top mounting surface of the frame and driven by two main transmission components respectively. The belt conveyor assembly includes a number of belt conveyor frames arranged in the roller gaps of the roller conveyor components along the first direction. Belt driven components are arranged at both ends of the belt conveyor frame. The belt conveyor frame is fixed on the overpass movement assembly. A belt driving component power-connected to the belt driven component is also arranged on the overpass movement assembly. A connecting belt wound around the belt driving component and the belt driven component is further arranged on the belt conveyor frame. The belt conveyor frame, the belt driven component and the belt driving component are located inside the overall frame of the frame when the overpass movement assembly is in the descending state.

[0008] In the above-mentioned photovoltaic glass double-power overpass turning conveyor, the overpass movement assembly includes a lifting component installed on the frame and a lifting frame connected to the lifting component. The lifting frame is located below the main transmission assembly and inside the overall frame of the frame in both the raised state and the descending state.

[0009] The belt conveyor frame is fixed to the top of the lifting frame through a number of support frames.

[0010] In the above-mentioned photovoltaic glass double-power overpass turning conveyor, the belt driving component includes a belt driving motor fixed on the lifting frame and a belt shaft fixed on the lifting frame through a number of first bearing seats. A belt sprocket power-connected to the belt driving motor through a belt driving chain is installed at a position adjacent to the belt driving motor on the belt shaft. A number of belt driving pulleys corresponding to the belt conveyor frame are also fixedly connected to the belt shaft.

[0011] In the above-mentioned photovoltaic glass double-power overpass turning conveyor, the belt driven component includes driven wheels installed at both ends of the belt conveyor frame through a driven wheel mounting plate and a driven shaft.

[0012] In the above-mentioned photovoltaic glass double-power overpass turning conveyor, tension wheels are also installed on two support frames on the lower side of the belt conveyor frame through a tension wheel mounting plate and a tension wheel mounting shaft. The connecting belt is wound around the two tension wheels. The tension wheel mounting plate is fixed to the support frame horizontally adjustable through a number of bolts.

[0013] In the above-mentioned photovoltaic glass double-power overpass turning conveyor, a number of rollers corresponding to the belt conveyor frame are also arranged on both sides of the frame. The transmission direction of the rollers is parallel to the second direction.

[0014] In the above-mentioned photovoltaic glass dual-power interchange steering conveyor, the main transmission component includes a main transmission motor fixed to the side of the frame and a main transmission shaft installed on the upper side of the main transmission motor through a number of No. 2 bearing seats, and the main transmission sprocket is fixed on the main transmission shaft, and the main transmission sprocket is connected to the main transmission motor through the main transmission chain;

[0015] The roller conveying component comprises a plurality of rubber rollers evenly spaced along the first direction, the inner ends of the rubber rollers being rotatably connected to the mounting rod in the middle of the frame via a No. 3 bearing seat, and the outer ends of the rubber rollers being dynamically connected to the main transmission shaft via a bevel gear structure;

[0016] The bevel gear structure comprises a driving bevel gear fixed on the main transmission shaft and a driven bevel gear fixed on the rubber wheel roller, and the driving bevel gear and the driven bevel gear are meshed.

[0017] In the above-mentioned photovoltaic glass dual-power interchange steering conveyor, a plurality of legs are arranged at the bottom of the frame, the legs are fixed on the ground, and the frame is adjustably fixed on the legs.

[0018] In the above-mentioned photovoltaic glass dual-power overpass steering conveyor, the swing-lifting component includes a motor mounting plate fixed in the frame, a swing-lifting motor is fixedly connected to the motor mounting plate, a crank is fixedly connected to the output shaft of the swing-lifting motor, and the crank is connected to a rocker arm through a joint bearing. Four No. 4 bearing seats are also fixedly connected to the motor mounting plate through a bearing seat mounting plate, and a swing-lifting shaft is rotatably connected between two corresponding No. 4 bearing seats, and the rocker arm is fixedly connected to the swing-lifting shaft close to the swing-lifting motor at one end away from the joint bearing, and a connecting rod vertically arranged to the swing-lifting shaft is also provided between the two swing-lifting shafts, one end of the connecting rod is rotatably connected to the middle part of the rocker arm, and the other end of the connecting rod is rotatably connected to the connecting rod swing arm, and the other end of the connecting rod swing arm is fixedly connected to the swing-lifting shaft away from the swing-lifting motor. Four No. 5 bearing seats are also fixedly connected to the bottom of the lifting frame, and four lifting swing arms that are against the bottom of the No. 5 bearing seats are also fixedly connected to the swing-lifting shaft.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. The main transmission assembly can transmit glass along a first direction. After the overpass motion assembly drives the belt conveyor assembly to move to the upper side of the main transmission assembly, the belt conveyor assembly can lift the glass and drive the glass to be transmitted along a second direction to realize 90° turning transportation of the glass. The overpass motion assembly and the belt conveyor assembly are arranged inside the overall frame of the frame 1 to reduce the overall volume of the equipment, and can prevent the belt conveyor assembly from affecting the installation of subsequent equipment when the equipment installation space is limited.

[0021] 2. Setting two independent main drive components to drive two roller conveyor components can make the forces on both sides of the frame evenly distributed, enhance the stability of the equipment, and can also transport two small-sized glasses at a time or one large-sized glass according to requirements. When a turn in transportation is needed, the overpass motion component can drive the belt conveyor frame to move upward to lift the glass, and the cooperation between the belt driving component and the belt driven component to drive the connecting belt on the belt conveyor frame to move can achieve a 90° turn in the transportation of the glass.

[0022] 3. Using a connecting belt can shorten the disassembly and assembly time of the belt and improve production efficiency.

[0023] 4. The belt drive motor is installed on the lifting frame and drives the belt shaft to rotate through a belt drive chain and a belt sprocket. The rotation of the belt shaft can drive the connecting belt to rotate through a belt driving pulley and a driven pulley, causing the glass to move in the second direction. The built-in setting of the belt drive motor can not only compress the space to meet the site requirements but also increase the stability and improve production efficiency.

[0024] 5. Setting the tension pulley on the support frame below the belt conveyor frame can increase the adjustable range of the belt.

[0025] 6. The lifting component adopts a crank-rocker mechanism, reducing the stress points, enhancing the load-bearing capacity, and increasing the service life of the equipment.

[0026] Other advantages, objectives, and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the front view of the present invention;

[0028] Figure 2 is the top view of the present invention;

[0029] Figure 3 is the left view of the present invention;

[0030] Figure 4 is the top view of the lifting component;

[0031] Figure 5 is the left view of the lifting component. DETAILED DESCRIPTION OF THE INVENTION

[0032] As Figures 1 - 5As shown in the figure, a photovoltaic glass dual-power interchange steering conveyor includes a frame 1. On the top mounting surface of the frame 1, there are a main transmission component, an interchange motion component, and a belt conveyor component arranged on the interchange transmission component. The transmission direction of the main transmission component is set along a first direction, and the transmission direction of the belt conveyor component is set along a second direction, and the first direction is perpendicular to the second direction. The interchange motion component and the belt conveyor component are arranged inside the overall frame of the frame 1 and below the main transmission component, and the interchange motion component can drive the belt conveyor component to move above the main transmission component.

[0033] In the present invention, the main transmission component can transmit glass along the first direction. After the interchange motion component drives the belt conveyor component to move above the main transmission component, the belt conveyor component can lift the glass so as to drive the glass to be transmitted along the second direction, so as to realize the 90° turning transportation of the glass. The interchange motion component and the belt conveyor component are arranged inside the overall frame of the frame 1, which can reduce the overall volume of the equipment and prevent the belt conveyor component from affecting the installation of subsequent equipment when the equipment installation space is limited.

[0034] Specifically, the main transmission component includes two roller conveyor components 8 symmetrically arranged on the top mounting surface of the frame 1 and respectively driven by two main transmission parts 2. The belt conveyor component includes a number of belt conveyor frames 3 arranged in the roller gaps of the roller conveyor components 8 along the first direction. At both ends of the belt conveyor frame 3, there are belt driven parts 5. The belt conveyor frame 3 is fixedly arranged on the interchange motion component. On the interchange motion component, there is also a belt driving part 4 power-connected to the belt driven part 5. On the belt conveyor frame 3, there is also a connecting belt 11 wound around the belt driving part 4 and the belt driven part 5. The belt conveyor frame 3, the belt driven part 5, and the belt driving part 4 are located inside the overall frame of the frame 1 when the interchange motion component is in the lowered state, and when the interchange motion component is in the raised state, the positions of both ends of the belt conveyor frame 3 do not exceed the two sides of the frame. Arranging two independent main transmission parts to drive two roller conveyor components can make the forces on both sides of the frame evenly distributed, increase the stability of the equipment, and can also transmit two small-sized glasses at a time or transmit one large-sized glass according to requirements. When turning transportation is required, the interchange motion component can drive the belt conveyor frame 3 to move upward to lift the glass, and the cooperation of the belt driving part 4 and the belt driven part 5 to drive the connecting belt 11 on the belt conveyor frame can realize the 90° turning transportation of the glass;

[0035] The belt conveyor frame 3, the belt driven component 5 and the belt driving component 4 are located inside the overall frame of the frame 1 when the interchange motion component is in a descending state, and the positions of the two ends of the belt conveyor frame 3 do not exceed the two sides of the frame when the interchange motion component is in a raised state, which can reduce the overall volume of the equipment and prevent the belt conveyor component from affecting the installation of subsequent equipment when the equipment installation space is limited;

[0036] The use of a jointed belt can shorten the time for disassembly and assembly of the belt and improve production efficiency.

[0037] Specifically, the overpass motion assembly includes a swing-lifting component 7 installed on the frame 1 and a lifting frame 6 connected to the swing-lifting component 7. The lifting frame 6 is located below the main transmission component and inside the overall frame of the frame 1 in both the raised and lowered states; the belt conveyor frame 3 is fixed to the top of the lifting frame 6 through a plurality of support frames 301. When the swing-lifting component 7 drives the lifting frame 6 to rise, the lifting frame 6 can move the belt conveyor frame from the roller gap to the upper side of the main transmission component 2 through the support frames.

[0038] Specifically, the belt driving component 4 includes a belt driving motor 401 fixed on the lifting frame 6 and a belt shaft 402 fixed on the lifting frame 6 through a plurality of No. 1 bearing seats, the belt shaft 402 is provided with a belt sprocket 404 connected to the belt driving motor 401 through a belt driving chain 405 at a position adjacent to the belt driving motor 401, the belt shaft 402 is also fixedly connected with a plurality of belt driving pulleys 403 corresponding to the belt conveying frame 3, and the belt driven component 5 includes driven pulleys 501 installed at both ends of the belt conveying frame 3 through driven pulley mounting plates 503 and driven shafts. The belt driving motor is installed on the lifting frame and drives the belt shaft 402 to rotate through the belt driving chain 405 and the belt sprocket 404. The rotation of the belt shaft can drive the connecting belt 11 to rotate through the belt driving pulley 403 and the driven pulley to move the glass along the second direction. The built-in setting of the belt driving motor can not only compress the space to meet the site requirements, but also increase the stability and improve the production efficiency.

[0039] Preferably, the two support frames 301 at the lower side of the belt conveyor frame 3 are also equipped with tensioning wheels 901 through tensioning wheel mounting plates 903 and tensioning wheel mounting shafts, and the connecting belt 11 is wound around the two tensioning wheels 901. The tensioning wheel mounting plates 903 are fixed to the support frames 301 in a horizontally adjustable manner through a plurality of bolts. The tensioning wheels are arranged on the support frames below the belt conveyor frame to increase the adjustable range of the belt.

[0040] Preferably, a number of rollers 110 corresponding to the belt conveyor frame 3 are further provided on both sides of the frame 1, and the transmission direction of the rollers 110 is parallel to the second direction. The provision of rollers for support can reduce the problem of broken plates caused by excessive glass cantilever.

[0041] Specifically, the main transmission component 2 includes a main transmission motor 201 fixed to the side of the frame 1 and a main transmission shaft 202 mounted on the upper side of the main transmission motor 201 through a number of second bearing seats. A main transmission sprocket 203 is fixed on the main transmission shaft 202, and the main transmission sprocket 203 is power-connected to the main transmission motor 201 through a main transmission chain 204; the roller conveyor component 8 includes a number of rubber wheel rollers 801 arranged at equal intervals along the first direction. The inner ends of the rubber wheel rollers 801 are rotatably connected to the mounting rod 804 in the middle of the frame 1 through third bearing seats, and the outer ends of the rubber wheel rollers 801 are power-connected to the main transmission shaft 202 through a bevel gear structure; the bevel gear structure includes a driving bevel gear 205 fixed on the main transmission shaft 202 and a driven bevel gear 802 fixed on the rubber wheel roller 801, and the driving bevel gear 205 and the driven bevel gear 802 are engaged. The main transmission motor 201 can drive the main transmission shaft 202 to rotate through the main transmission chain 204 and the main transmission sprocket 203, and the rotation of the main transmission shaft 202 can drive the rubber wheel roller 801 to rotate through the driving bevel gear 205 and the driven bevel gear 802, so as to enable the glass to be transmitted along the first direction.

[0042] Preferably, a number of legs 101 are provided at the bottom of the frame 1, the legs 101 are fixed on the ground, and the frame 1 is adjustably fixed on the legs 101. The adjustable fixing of the frame on the legs can ensure that the frame can be reasonably placed and facilitate the adjustment of the elevation at the same time.

[0043] Specifically, the lifting component 7 includes a motor mounting plate 103 fixed inside the frame 1. A lifting motor 708 is fixedly connected to the motor mounting plate 103. A crank 701 is fixedly connected to the output shaft of the lifting motor 708. The crank 701 is connected to a rocker swing arm 702 through a spherical plain bearing 705. Four fourth bearing seats 706 are also fixedly connected to the motor mounting plate 103 through a bearing seat mounting plate 104. A lifting shaft 707 is rotatably connected between two corresponding fourth bearing seats 706. One end of the rocker swing arm 702 away from the spherical plain bearing 705 is fixedly connected to the lifting shaft 707 on the side close to the lifting motor 708. A connecting rod 710 perpendicular to the lifting shaft 707 is also provided between the two lifting shafts 707. One end of the connecting rod 710 is rotatably connected to the middle of the rocker swing arm 702. The other end of the connecting rod 710 is rotatably connected to a connecting rod swing arm 703. The other end of the connecting rod swing arm 703 is fixedly connected to the lifting shaft 707 on the side away from the lifting motor 708. Four fifth bearing seats 711 are also fixedly connected to the bottom of the lifting frame 6. Four lifting swing arms 704 that abut against the bottom of the fifth bearing seats 711 are also fixedly connected to the lifting shaft 707. The lifting motor 708 can drive the crank 701 to rotate. The rotation of the crank can drive the lifting shaft 707 on the side close to the lifting motor 708 to rotate through the spherical plain bearing 705 and the rocker swing arm 702. At the same time, the movement of the rocker swing arm 702 can also drive the lifting shaft 707 on the side away from the lifting motor 708 to rotate through the connecting rod and the connecting rod swing arm 703. The simultaneous rotation of the two lifting shafts 707 can drive the four fifth bearing seats to rise or fall through the four lifting swing arms 704, thereby realizing the rise and fall of the lifting frame. The lifting component adopts a crank-rocker structure, which can reduce the stress points, enhance the load capacity, and increase the service life of the equipment.

[0044] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A photovoltaic glass dual-power interchange steering conveyor, comprising a frame (1), wherein a main transmission assembly, an interchange motion assembly, and a belt conveyor assembly arranged on the interchange transmission assembly are arranged on the top mounting surface of the frame (1), wherein the transmission direction of the main transmission assembly is arranged along a first direction, and the transmission direction of the belt conveyor assembly is arranged along a second direction, and the first direction is perpendicular to the second direction, and wherein: The overpass motion component and the belt conveyor component are arranged inside the overall frame of the frame (1) and are located below the main transmission component, and the overpass motion component can drive the belt conveyor component to move to the upper side of the main transmission component.

2. The photovoltaic glass dual-power interchange steering conveyor according to claim 1 is characterized in that: The main transmission assembly comprises two roller conveying components (8) symmetrically arranged on the top mounting surface of the frame (1) and driven by two main transmission components (2) respectively; the belt conveying assembly comprises a plurality of belt conveying frames (3) arranged in the roller gap of the roller conveying components (8) along a first direction; belt driven components (5) are arranged at both ends of the belt conveying frames (3); the belt conveying frames (3) are fixedly arranged on the interchange motion assembly; the interchange motion assembly is also provided with a belt driving component (4) connected to the belt driven component (5) by power; the belt conveying frames (3) are also provided with a connecting belt (11) wound around the belt driving component (4) and the belt driven component (5); the belt conveying frames (3), the belt driven component (5) and the belt driving component (4) are located inside the overall frame of the frame (1) when the interchange motion assembly is in a descending state.

3. The photovoltaic glass dual-power interchange steering conveyor according to claim 2 is characterized in that: The overpass motion assembly comprises a swing-lift component (7) mounted on a frame (1) and a lifting frame (6) connected to the swing-lift component (7); the lifting frame (6) is located below the main transmission component and inside the overall frame of the frame (1) in both the raised and lowered states; The belt conveyor frame (3) is fixed to the top of the lifting frame (6) via a plurality of support frames (301).

4. The photovoltaic glass dual-power interchange steering conveyor according to claim 3 is characterized in that: The belt driving component (4) comprises a belt driving motor (401) fixed on the lifting frame (6) and a belt shaft (402) fixed on the lifting frame (6) through a plurality of No. 1 bearing seats, the belt shaft (402) being provided with a belt sprocket (404) connected to the belt driving motor (401) by a belt driving chain (405) at a position adjacent to the belt driving motor (401), and the belt shaft (402) is also fixedly connected with a plurality of belt driving pulleys (403) arranged corresponding to the belt conveyor frame (3).

5. The photovoltaic glass dual-power interchange steering conveyor according to claim 4 is characterized in that: The belt driven component (5) comprises driven wheels (501) mounted on both ends of the belt conveyor frame (3) via driven wheel mounting plates (503) and driven shafts.

6. The photovoltaic glass dual-power interchange steering conveyor according to claim 4 is characterized in that: A tensioning wheel (901) is also installed on the two support frames (301) at the lower side of the belt conveyor frame (3) via a tensioning wheel mounting plate (903) and a tensioning wheel mounting shaft, the connecting belt (11) is wound around the two tensioning wheels (901), and the tensioning wheel mounting plate (903) is fixed to the support frame (301) in a horizontally adjustable manner via a plurality of bolts.

7. A photovoltaic glass dual-power interchange steering conveyor according to any one of claims 2 to 6, characterized in that: A plurality of rollers (110) corresponding to the belt conveyor frame (3) are also arranged on both sides of the frame (1), and the transmission direction of the rollers (110) is parallel to the second direction.

8. The photovoltaic glass dual-power interchange steering conveyor according to claim 7 is characterized in that: The main transmission component (2) comprises a main transmission motor (201) fixed to the side of the frame (1) and a main transmission shaft (202) installed on the upper side of the main transmission motor (201) through a plurality of No. 2 bearing seats, a main transmission sprocket (203) is fixed on the main transmission shaft (202), and the main transmission sprocket (203) is connected to the main transmission motor (201) through a main transmission chain (204); The roller conveying component (8) comprises a plurality of rubber rollers (801) evenly spaced along a first direction, the inner ends of the rubber rollers (801) being rotatably connected to a mounting rod (804) in the middle of the frame (1) via a No. 3 bearing seat, and the outer ends of the rubber rollers (801) being dynamically connected to a main transmission shaft (202) via a bevel gear structure; The bevel gear structure comprises a driving bevel gear (205) fixed on the main transmission shaft (202) and a driven bevel gear (802) fixed on the rubber wheel roller (801), and the driving bevel gear (205) and the driven bevel gear (802) are meshed.

9. A photovoltaic glass dual-power interchange steering conveyor according to any one of claims 1 to 6, characterized in that: A plurality of legs (101) are arranged at the bottom of the frame (1); the legs (101) are fixed on the ground, and the frame (1) is adjustably fixed on the legs (101).

10. A photovoltaic glass dual-power interchange steering conveyor according to any one of claims 3 to 6, characterized in that: The swing-up component (7) comprises a motor mounting plate (103) fixed in the frame (1); a swing-up motor (708) is fixedly connected to the motor mounting plate (103); a crank (701) is fixedly connected to the output shaft of the swing-up motor (708); the crank (701) is connected to a rocker arm (702) via a joint bearing (705); four No. 4 bearing seats (706) are also fixedly connected to the motor mounting plate (103) via a bearing seat mounting plate (104); a swing-up shaft (707) is rotatably connected between two corresponding No. 4 bearing seats (706); the rocker arm (702) is away from the joint bearing (705) and is connected to the swing-up shaft (707); The end of the lifting frame (6) is fixedly connected to the swing-lift shaft (707) close to the swing-lift motor (708), and a connecting rod (710) vertically arranged with the swing-lift shaft (707) is provided between the two swing-lift shafts (707). One end of the connecting rod (710) is rotatably connected to the middle part of the rocker swing arm (702), and the other end of the connecting rod (710) is rotatably connected to the connecting rod swing arm (703), and the other end of the connecting rod swing arm (703) is fixedly connected to the swing-lift shaft (707) away from the swing-lift motor (708). The bottom of the lifting frame (6) is also fixedly connected to four No. 5 bearing seats (711), and the swing-lift shaft (707) is also fixedly connected to four lifting swing arms (704) that are against the bottom of the No. 5 bearing seats (711).

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