A drum bracket and motor base lifting mechanism

Abstract

The present invention provides a roller support and motor base lifting mechanism, including a frame, a lifting cylinder, a vibration motor lifting rod, a vibration motor lifting plate, a lifting main arm and a vibration motor support; and also includes a roller mounting frame, a roller lifting assembly and a roller conveyor line, wherein the roller conveyor line includes a plurality of parallel electric rollers. The present invention drives the lifting main arm to perform lifting movement through the lifting cylinder on the frame, and the lifting main arm drives the lifting of the vibration motor and the lifting of the roller conveyor line at the same time, thereby realizing the synchronous lifting of the vibration motor and the roller conveyor line during the vibration operation, which is cleverly matched with the vibration operation process and realizes the automation of the vibration operation.

Description

Technical Field

[0001] The present invention relates to the field of vibration equipment, and more specifically, to a roller bracket and a motor base lifting mechanism. Background Art

[0002] The electric roller is a new type of drive device that places the drive components such as the motor and the reducer inside the roller body. The electric roller is widely used in conveying materials. Compared with the separate drive device, the electric roller has many advantages such as compact structure, high transmission efficiency, low noise, long service life, stable operation, reliable operation, good sealing, small space occupation, easy installation, etc., and is suitable for working in various harsh environmental conditions. When using the electric roller for material transportation, it is sometimes necessary to be able to lift or lower the entire electric roller mechanism. For example, when the vibration motor vibrates and removes impurities from the template, the template must first be fixed on the support structure for vibration and impurity removal, and then the electric roller at the bottom is lifted up by a power device such as a cylinder to contact the template and transport the template that has been cleaned. After the transportation is completed, the electric roller needs to be lowered again so that the roller motor does not directly receive the vibration of the vibration motor. In some other situations, there is also a need for an electric roller mechanism with a lifting bracket to facilitate the lifting and lowering of the electric roller.

[0003] Chinese patent CN207088107U concrete vibration table discloses a vibration motor including a base, a vibration table and a lower end surface of the vibration table, a support spring is arranged between the base and the vibration table, a first baffle is arranged at the front and rear edges of the vibration table to limit the sliding of the concrete specimen, a second baffle abutting the vibration table and a lifting cylinder controlling the lifting of the second baffle are arranged on the left and right sides of the vibration table, a pushing mechanism is arranged on one side of the vibration table, the pushing mechanism includes a brush plate, a pushing cylinder driving the brush plate to enter the upper end surface of the vibration table and a bracket for supporting the pushing cylinder, and bristles are arranged on the bottom surface of the brush plate. Chinese patent CN207088107U does not disclose how to move the vibration motor and the electric conveying roller.

[0004] Therefore, there is an urgent need for an electric roller device with a lifting mechanism to meet the functions that the electric roller can be lifted and lowered and the electric roller conveyor line can be lifted and lowered synchronously. Summary of the invention

[0005] The present invention is to overcome the problem described in the above background technology that an electric roller device with a lifting mechanism is currently urgently needed to meet the problem that the electric roller can be lifted and lowered and the electric roller conveyor line can be lifted and lowered synchronously, and provides a roller bracket and a motor base lifting mechanism.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a drum bracket and motor base lifting mechanism, including a frame, a lifting cylinder, a vibration motor lifting rod, a vibration motor lifting plate, a lifting main arm and a vibration motor bracket;

[0007] The lifting cylinder is fixed to the top of the frame, and the telescopic end of the lifting cylinder is connected to the lifting main arm; one end of the vibration motor lifting rod is fixed to the vibration motor lifting plate, and the other end is fixedly connected to the lifting main arm; the side of the vibration motor bracket is inserted into the vibration motor lifting rod, and the side of the vibration motor bracket is arranged above the vibration motor lifting plate;

[0008] It also includes a roller mounting frame, a roller lifting assembly and a roller conveyor line. The roller conveyor line includes a plurality of electric rollers arranged in parallel. Each electric roller is located in the bracket and faces the vibration motor bracket. Both ends of each electric roller are connected to the mounting frame. The mounting frame is arranged outside the opposite sides of the frame. One end of the lifting assembly is connected to the lifting main arm, and the other end crosses the frame and is fixedly connected to the outer wall of the mounting frame. In this way, the vibration motor bracket, the vibration operation area and the roller conveyor line below are arranged from top to bottom on the frame, and the lifting cylinder is located at the top of the frame. The extension and retraction of the lifting cylinder piston rod drives the lifting main arm to rise and fall at the same time. The lifting main arm is hung with a vibration motor lifting rod, a vibration motor lifting plate and a roller lifting assembly. The lifting of the lifting main arm can drive the vibration motor bracket and the roller conveyor line to rise and fall synchronously; generally, when the vibration test piece is placed on the roller conveyor line and reaches the operation area, the vibration motor descends, the roller conveyor line also descends, and the electric roller is separated from the vibration test piece. At this time, the vibration test piece is supported by both ends of the bracket and will not fall with it. The vibration motor acts on the vibration test piece to vibrate. After the vibration operation is completed, the lifting cylinder rises, driving the vibration motor bracket and the electric roller to rise synchronously. After the electric roller contacts the vibration test piece, it rolls and transports the vibration test piece away. In this way, the motor lifting during the vibration operation and the synchronous lifting of the roller conveyor line are achieved, which cleverly matches the vibration operation process and realizes the automation of the vibration operation.

[0009] Furthermore, the lifting cylinder includes a floating joint, a cylinder body, a cylinder flange, and a telescopic rod; the bottom of the cylinder flange is welded to the frame, the cylinder body is fixed to the cylinder flange, one end of the telescopic rod is connected to the cylinder body, and the other end is connected to the floating joint, and the floating joint is fixedly connected to the lifting main arm.

[0010] Furthermore, the side of the vibration motor bracket is provided with a motor lifting support plate, and the motor lifting support plate is also provided with a support plate through hole, and the vibration motor lifting rod passes through the support plate through hole; the motor lifting support plate is arranged above the vibration motor lifting plate, and the minimum interval between the motor lifting support plate and the vibration motor lifting plate is 15mm-25mm; the telescopic stroke of the lifting cylinder is 40mm-60mm. In this way, since the vibration motor lifting rod and the support plate through hole are movably penetrated, there is a gap between the two. When the vibration motor bracket reaches the working position, the vibration motor bracket no longer descends, and the vibration motor lifting rod and the vibration motor lifting plate continue to descend. When descending to the bottom, there is a gap of at least 15mm between the motor lifting support plate and the vibration motor lifting plate. When the vibration motor needs to be lifted, the vibration motor lifting plate first rises to an empty interval area and then contacts the motor lifting support plate, and then lifts the vibration motor. Such a design makes it possible that when the motor is in action, the components on the motor bracket are not in contact with the vibration motor lifting plate, and the vibration of the vibration motor will not be directly transmitted to the lifting cylinder, protecting the safety of the lifting cylinder; making the lifting cylinder not easy to be damaged when in use.

[0011] Furthermore, the vibration motor bracket also includes a vibration machine base, a plurality of vertical support plates arranged on the vibration machine base, and a motor base plate fixed on the vertical support plates, and the vibration motor is fixed to the motor base plate by motor mounting bolts; a motor base plate slot is opened on the motor base plate, and the motor mounting bolts pass through the motor base plate slot to fix the vibration motor to the motor base plate.

[0012] Furthermore, a vertical support plate is provided at the edge of the vibration machine base, and a vibration machine base protrusion is extended upward from the vertical support plate; the motor lifting support plate is fixed to the vibration machine base protrusion by a motor lifting bolt.

[0013] Furthermore, the mounting frame includes mounting plates arranged in parallel at both ends of the electric roller, the two ends of the electric roller are respectively connected to the mounting plates, the roller lifting assembly is located at both ends of the frame, the roller lifting assembly includes a first lifting structure and a second lifting structure arranged oppositely, the first lifting structure is "U"-shaped, and the two ends of the opening of the "U"-shaped first lifting structure are respectively connected to the side surface of the mounting plate facing away from the electric roller; one end of each roller mounting plate is connected to the first lifting structure, and the other end is connected to one end of the second lifting structure of the group, and there is a gap between the other ends of the second lifting structures of the group; the frame is provided with fixed support beams parallel to the motor roller at both ends of the roller conveyor line, and the fixed support beams are located between the top and bottom ends of the lifting stroke of the roller conveyor line and close to the top of the lifting stroke of the roller conveyor line.

[0014] Furthermore, the first lifting structure includes a root "L"-shaped first connecting rod and a root straight first cross beam. The first cross beam is erected above one end of the lifting main arm and is perpendicular to the lifting main arm. The two ends of the first cross beam are respectively and perpendicularly connected to the vertical rods of the root first connecting rod to form the "U"-shaped structure. The first cross beam and the cross bar of the first connecting rod are parallel to each other and are located on the same side of the vertical rod of the first connecting rod. The cross bar of each first connecting rod is perpendicularly connected to one end of the side wall of the mounting plate on its corresponding side; the second lifting structure includes an "L"-shaped second connecting rod and a straight second cross beam. The second connecting rod and the second cross beam are connected into a "匚"-shaped structure. The vertical rod of the second connecting rod is connected to the second cross beam. The cross bar of the second connecting rod is perpendicularly connected to the other end of the side wall of the mounting plate. The second cross beam is perpendicularly connected to the middle end of the lifting main arm. The distance between the lengths of the two second cross beams is greater than the corresponding width of the vibrating motor. In this way, the entire roller lifting bracket is set as a frame structure, occupying less space; at one end of the entire electric roller conveyor line, the first cross beam spans and connects two first connecting rods to form a "U"-shaped connecting bridge structure; the "匚"-shaped second lifting structures are arranged with their openings facing each other. The distance between the two second cross beams is generally greater than the length of the electric roller. The length of the second cross beam is shorter, and it only needs to meet the force of the external power device for lifting. In this way, a larger working space above can be vacated.

[0015] Furthermore, the first connecting rod and the second connecting rod are of the same size. The plane where the first connecting rod is located and the plane where the second connecting rod is located are parallel to each other. The first cross beam, the second cross beam, and the electric roller are parallel to each other. In this way, the heights of the first cross beam and the second cross beam relative to the plane where the electric roller is located are equal, the entire structure is more regular, and the force is more stable during lifting.

[0016] Furthermore, a conveying support rod is also provided below the electric roller. A driven roller is arranged between every two adjacent electric rollers. In this way, the interval arrangement of the non-powered driven rollers can reduce the number of electric rollers required. The conveying support rod arranged below the electric roller can ensure the parallelism and distance of the roller installation, prevent the electric roller from falling, and ensure that the electric roller will not be stuck or bent.

[0017] Preferably, the outer circumferential wall of the electric roller is provided with knurling. In this way, the knurling provided on the outer wall of the electric roller can increase the friction between it and the conveyed material and prevent slipping during transmission.

[0018] Compared with the prior art, the beneficial effects are:

[0019] 1. The lifting cylinder on the frame drives the lifting main arm to do lifting movement. The lifting main arm drives the vibration motor and the roller conveyor line to move up and down at the same time. In this way, the vibration motor and the roller conveyor line can be lifted and lowered synchronously during the vibration operation, which cleverly matches the vibration operation process and realizes the automation of the vibration operation.

[0020] 2. When the motor is working, there is a gap of at least 15mm between the motor lifting support plate and the vibration motor lifting plate. The components on the motor bracket are not in contact with the vibration motor lifting plate, so the vibration of the vibration motor will not be directly transmitted to the lifting cylinder, protecting the safety of the lifting cylinder; making the lifting cylinder not easily damaged during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a structural schematic diagram of a vibration motor placed on a vibration motor bracket in the present invention.

[0023] Figure 3 yes Figure 2 Schematic diagram of the side structure.

[0024] Figure 4 It is a partial enlarged view of the motor lifting support plate and the vibration motor lifting plate in the present invention.

[0025] Figure 5 It is a structural schematic diagram of the roller lifting bracket in the present invention.

[0026] Figure 6 It is a structural schematic diagram of the lifting cylinder in the present invention.

[0027] Figure 7 It is a schematic diagram of the vibration motor lifting rod and the vibration motor lifting plate in the present invention.

[0028] Figure 8 It is a structural schematic diagram of the vibration motor bracket and the vibration motor in the present invention.

[0029] Fig. 9 It is a structural schematic diagram of the vibration motor bracket in the present invention.

[0030] Fig.10 It is a schematic diagram of the motor bottom plate structure in the present invention. DETAILED DESCRIPTION

[0031] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0032] The present embodiment provides a drum support and motor base lifting mechanism, including a frame 38a, a lifting cylinder 30a, a vibration motor lifting rod 35a, a vibration motor lifting plate 36a, a lifting main arm 37a and a vibration motor support 10a; the lifting cylinder 30a is fixed to the top of the frame 38a, and the telescopic end of the lifting cylinder 30a is connected to the lifting main arm 37a; one end of the vibration motor lifting rod 35a is fixed to the vibration motor lifting plate 36a, and the other end is fixedly connected to the lifting main arm 37a; the side of the vibration motor support 10a is inserted into the vibration motor lifting rod 35a, and the vibration motor The side of the machine bracket 10a is arranged above the vibration motor lifting plate 36a; it also includes a roller mounting frame 20, a roller lifting assembly and a roller conveyor line. The roller conveyor line includes a plurality of parallel electric rollers 22. Each electric roller 22 is located in the bracket and faces the vibration motor bracket 10a. Both ends of each electric roller 22 are connected to the mounting frame 20. The mounting frame 20 is arranged on the opposite sides of the frame 38a. One end of the lifting assembly is connected to the lifting main arm 37a, and the other end crosses the frame 38a and is fixedly connected to the outer wall of the mounting frame 20; the circumferential outer wall of the electric roller 22 is provided with knurling.

[0033] In this embodiment, the lifting cylinder 30a includes a floating joint 31a, a cylinder body 32a, a cylinder flange 33a, and a telescopic rod 34a; the bottom of the cylinder flange 33a is welded to the frame 38a, the cylinder body 32a is fixed to the cylinder flange 33a, one end of the telescopic rod 34a is connected to the cylinder body 32a, and the other end is connected to the floating joint 31a, and the floating joint 31a is fixedly connected to the lifting main arm 37a.

[0034] In this embodiment, a motor lifting support plate 3a is provided on the side of the vibration motor bracket 10a, and a support plate 3a through hole 8a is also opened on the motor lifting support plate 3a, and a vibration motor lifting rod 35a passes through the support plate 3a through hole 8a; the motor lifting support plate 3a is arranged above the vibration motor lifting plate 36a, and the maximum interval between the motor lifting support plate 3a and the vibration motor lifting plate 36a is 20mm; the telescopic stroke of the lifting cylinder 30a is 50mm; the vibration motor bracket 10a also includes a vibration machine base 1a, and a vibration machine base 1a arranged on the vibration machine base 1a A plurality of vertical support plates 9a are provided on the vibrator base 1a, and a motor base plate 6a is fixed on the vertical support plate 9a, and the vibration motor 2a is fixed to the motor base plate 6a by means of motor mounting bolts; a motor base plate slot 6a1 is provided on the motor base plate 6a, and the motor mounting bolts pass through the motor base plate slot 6a1 to fix the vibration motor 2a to the motor base plate 6a; a vertical support plate 9a is also provided at the edge of the vibration machine base 1a, and the vertical support plate 9a extends upward with a vibration machine base protrusion 7a; the motor lifting support plate 3a is fixed to the vibration machine base protrusion 7a by means of the motor lifting bolts 5a.

[0035] In this embodiment, the motor bottom plate slots 6a1 are arranged on both sides of the motor bottom plate 6a, and the number of the motor bottom plate slots 6a1 is 4. By setting the above number, the vibration motor 2a is fixed more stably.

[0036] In this embodiment, the number of motor lifting support plates 3a is also 4, and the motor lifting support plates 3a all extend horizontally outward. By setting the support plate through holes 8a, the long strip rods can be passed through the above-mentioned support plate through holes 8a, and then by setting a driving mechanism, the entire vibration machine base 1a can be driven to move up and down in the vertical direction along the long strip rods, and finally the height of the vibration motor 2a can be adjusted.

[0037] In this embodiment, the mounting frame 20 includes a mounting plate 21 arranged in parallel at both ends of the electric roller 22, and the two ends of the electric roller 22 are respectively connected to the protrusions 29 above the mounting plate 21. The roller lifting assembly is located at both ends of the frame 38a. The roller lifting assembly includes a first lifting structure 23 and a second lifting structure 24 arranged opposite to each other. The first lifting structure 23 is "U"-shaped, and the two ends of the opening of the "U"-shaped first lifting structure 23 are respectively connected to the side surface of the mounting plate 21 facing away from the electric roller 22; one end of each roller mounting plate 21 is connected to the first lifting structure 23, and the other end is connected to one end of the second lifting structure 24 of the group, and there is a gap between the other ends of the second lifting structure 24 of the group; the frame 38a is provided with a fixed support beam 30 parallel to the motor roller at both ends of the roller conveyor line, and the fixed support beam 30 is flush with the top of the lifting stroke of the roller conveyor line.

[0038] In this embodiment, the first lifting structure 23 includes a root "L"-shaped first connecting rod 25 and a root straight first cross beam 26. The first cross beam 26 is erected above one end of the lifting main arm 37a and is perpendicular to the lifting main arm 37a. The two ends of the first cross beam 26 are respectively and perpendicularly connected to the vertical rods of a root of the first connecting rod 25 to form a "U"-shaped structure. The first cross beam 26 and the horizontal rod of the first connecting rod 25 are parallel to each other and are located on the same side of the vertical rod of the first connecting rod 25. The horizontal rod of each first connecting rod 25 is perpendicularly connected to one end of the side wall of the mounting plate 21 on its corresponding side; the second lifting structure 24 includes an "L"-shaped second connecting rod 27 and a straight second cross beam 28. The second connecting rod 27 and the second cross beam 28 are connected into a "匚"-shaped structure. The vertical rod of the second connecting rod 27 is connected to the second cross beam 28. The horizontal rod of the second connecting rod 27 is perpendicularly connected to the other end of the side wall of the mounting plate 21. The second cross beam 28 is perpendicularly connected to the middle end of the lifting main arm 37a. The distance between the lengths of the two second cross beams 28 is greater than the corresponding width of the vibration motor; the first connecting rod 25 and the second connecting rod 27 are of the same size. The plane where the first connecting rod 25 is located and the plane where the second connecting rod 27 is located are parallel to each other. The first cross beam 26, the second cross beam 28, and the electric roller 22 are parallel to each other; a conveying support rod 221 is further provided below the electric roller 22. A driven roller 220 is arranged between every two adjacent electric rollers 22.

[0039] In this embodiment, the lifting cylinder 30a mainly drives two parts on the frame 38a to lift: a vibration motor lifting bracket, as Figure 3 shown, and the other is a roller lifting bracket, as Figure 5 shown; the lifting cylinder 30a is located at the top of the frame 38a. The telescopic movement of the piston rod of the lifting cylinder 30a drives the lifting main arm 37a to lift and lower simultaneously. A vibration motor lifting rod 35a, a vibration motor lifting plate 36a, and a roller lifting assembly are hung on the lifting main arm 37a. The lifting and lowering of the lifting main arm 37a can drive the vibration motor bracket 10a and the roller conveyor line to lift and lower synchronously; generally, when the vibration test piece is placed on the roller conveyor line and reaches the working area, the vibration motor 2a descends, and the roller conveyor line also descends. The electric roller 22 disengages from the vibration test piece. At this time, the vibration test piece is supported by both ends of the bracket and will not follow the descent. The vibration motor 2a acts on the vibration test piece to vibrate. After the vibration operation is completed, the lifting cylinder 30a rises, driving the vibration motor bracket 10a and the electric roller 22 to rise synchronously. After the electric roller 22 contacts the vibration test piece, it rolls and conveys the vibration test piece away. In this way, the synchronous lifting and lowering of the motor and the roller conveyor line during the vibration operation are realized, which cleverly matches the vibration operation process and realizes the automation of the vibration operation.

[0040] In particular, since the vibration motor lifting rod 35a and the through hole 8a of the support plate 3a are movably arranged, there is a gap between the two. When the vibration motor bracket 10a reaches the action position, the vibration motor 2a no longer descends, and the vibration motor lifting rod 35a and the vibration motor lifting plate 36a continue to descend. When they descend to the bottom, there is a 20mm gap between the motor lifting support plate 3a and the vibration motor lifting plate 36a. When it is necessary to lift the vibration motor 2a, the vibration motor lifting plate 36a first rises to an empty interval area and then contacts the motor lifting support plate 3a, and then lifts the vibration motor 2a. Such a design makes it possible that when the vibration motor 2a is in action, the components on the vibration motor bracket 10a are not in contact with the vibration motor lifting plate 36a, and the vibration of the vibration motor 2a will not be directly transmitted to the lifting cylinder 30a, protecting the safety of the lifting cylinder 30a; making the lifting cylinder 30a not easily damaged when in use.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A roller bracket and motor base lifting mechanism, characterized in that: It comprises a frame (38a), a lifting cylinder (30a), a vibration motor lifting rod (35a), a vibration motor lifting plate (36a), a lifting main arm (37a) and a vibration motor bracket (10a); The lifting cylinder (30a) is fixed to the top of the frame (38a), and the telescopic end of the lifting cylinder (30a) is connected to the lifting main arm (37a); one end of the vibration motor lifting rod (35a) is fixed to the vibration motor lifting plate (36a), and the other end is fixedly connected to the lifting main arm (37a); the side of the vibration motor bracket (10a) is inserted into the vibration motor lifting rod (35a), and the side of the vibration motor bracket (10a) is arranged above the vibration motor lifting plate (36a); It also comprises a roller mounting frame (20), a roller lifting assembly and a roller conveyor line, wherein the roller conveyor line comprises a plurality of parallel electric rollers (22), each of the electric rollers (22) being located in the bracket and facing the vibration motor bracket (10a), both ends of each electric roller (22) being connected to the mounting frame (20), the mounting frame (20) being arranged outside two opposite sides of the frame (38a), one end of the lifting assembly being connected to the lifting main arm (37a), and the other end being fixedly connected to the outer wall of the mounting frame (20) across the frame (38a); The lifting cylinder (30a) comprises a floating joint (31a), a cylinder body (32a), a cylinder flange (33a), and a telescopic rod (34a); The bottom of the cylinder flange (33a) is welded to the frame (38a), the cylinder body (32a) is fixed to the cylinder flange (33a), one end of the telescopic rod (34a) is connected to the cylinder body (32a), and the other end is connected to the floating joint (31a), and the floating joint (31a) is fixedly connected to the lifting main arm (37a); A motor lifting support plate (3a) is provided on the side of the vibration motor bracket (10a), and a support plate through hole (8a) is also provided on the motor lifting support plate (3a), and the vibration motor lifting rod (35a) passes through the support plate through hole (8a); the motor lifting support plate (3a) is arranged above the vibration motor lifting plate (36a), and the minimum spacing between the motor lifting support plate (3a) and the vibration motor lifting plate (36a) is 15mm-25mm; the telescopic stroke of the lifting cylinder (30a) is 40mm-60mm; The vibration motor bracket (10a) further comprises a vibration machine base (1a), a plurality of vertical support plates (9a) arranged on the vibration machine base (1a), and a motor base plate (6a) fixed on the vertical support plates (9a), wherein the vibration motor is fixed to the motor base plate (6a) by means of motor mounting bolts; a motor base plate slot (6a1) is provided on the motor base plate (6a), and the motor mounting bolts pass through the motor base plate slot (6a1) to fix the vibration motor to the motor base plate (6a); A vertical support plate (9a) is also provided at the edge of the vibration machine base (1a), and a vibration machine base protrusion (7a) extends upward from the vertical support plate (9a); the motor lifting support plate (3a) is fixed to the vibration machine base protrusion (7a) through motor lifting bolts. The mounting frame (20) includes two mounting plates (21) arranged in parallel at both ends of the electric roller (22). The two ends of the electric roller (22) are respectively connected to the mounting plates (21). The roller lifting assembly is located at both ends of the frame (38a). The frame (38a) is provided with fixed support beams (30) parallel to the electric roller at both ends of the roller conveyor line. The fixed support beams (30) are located between the top and bottom of the lifting stroke of the roller conveyor line and are close to the top of the lifting stroke of the roller conveyor line.

2. The roller bracket and motor base lifting mechanism according to claim 1, characterized in that: The roller lifting assembly includes a set of first lifting structures (23) and two sets of second lifting structures (24) arranged oppositely. The first lifting structure (23) includes two "L"-shaped first connecting rods (25) and a straight first cross beam (26). The first cross beam (26) is erected above one end of the lifting main arm (37a) and is perpendicular to the lifting main arm (37a). Both ends of the first cross beam (26) are respectively and perpendicularly connected to the vertical rods of one first connecting rod (25) to form a "U" - shaped structure. The first cross beam (26) and the cross rods of the first connecting rods (25) are parallel to each other and are on the same side of the vertical rods of the first connecting rods (25). The cross rod of each first connecting rod (25) is perpendicularly connected to one end of the side wall of the corresponding mounting plate (21). The second lifting structure (24) includes an "L"-shaped second connecting rod (27) and a straight second cross beam (28). The second connecting rod (27) and the second cross beam (28) are connected into a "匚" - shaped structure. The vertical rod of the second connecting rod (27) is connected to the second cross beam (28). The cross rod of the second connecting rod (27) is perpendicularly connected to the other end of the side wall of the mounting plate (21). The second cross beam (28) is perpendicularly connected to the middle end of the lifting main arm (37a). The distance between the lengths of the two second cross beams (28) is greater than the width corresponding to the vibration motor.

3. The drum support and motor base lifting mechanism according to claim 2, characterized in that: The first connecting rod (25) and the second connecting rod (27) are of the same size. The plane where the first connecting rod (25) is located and the plane where the second connecting rod (27) is located are parallel to each other. The first cross beam (26), the second cross beam (28) and the electric roller (22) are parallel to each other.

4. The roller bracket and motor base lifting mechanism according to claim 1, characterized in that: A conveying frame rod (221) is also provided below the electric roller (22). A driven roller (220) is arranged between every two adjacent electric rollers.

5. The drum support and motor base lifting mechanism according to any one of claims 1 to 4, characterized in that: The outer circumferential wall of the electric roller (22) is provided with knurling.

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