CN110451157B

CN110451157B - Roller bed

Info

Publication number: CN110451157B
Application number: CN201910678003.3A
Authority: CN
Inventors: 仇云杰; 管春森; 范伟辉; 姜大龙
Original assignee: Jiangsu Changhong Intelligent Equipment Group Co ltd; Jiangsu Changhong Machinery Design Institute Co ltd
Current assignee: Jiangsu Changhong Intelligent Equipment Group Co ltd; Jiangsu Changhong Machinery Design Institute Co ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2021-04-27
Anticipated expiration: 2039-07-25
Also published as: CN110451157A

Abstract

The invention provides a roller bed, comprising: a frame; the roller assemblies are distributed on the frame in parallel at intervals, and are provided with roller shafts capable of rotating around the axes of the roller assemblies; and the driving device is fixedly arranged on the frame and provides rotating power for the roll shaft. According to the workpiece conveying equipment, only a part of the workpiece is placed on the roller bed, the workpiece is conveyed to the other end of the frame from one end of the frame by the plurality of roller assemblies, the whole conveying process is stable in operation, no accident occurs, the conveying efficiency is high, the space utilization rate is high, and the maintenance cost is low.

Description

Roller bed

Technical Field

The invention relates to the technical field of product conveying, in particular to a roller bed.

Background

Workpiece transport equipment is common equipment in the daily production of workpieces. In the prior art, a hoisting type hoisting conveying device is generally adopted to convey large-size and heavy-weight parts. The part conveying mode not only occupies a large area, but also needs manual loading and unloading, has low conveying efficiency and is easy to cause safety accidents.

The conveying device with the structure is easy to damage in the using process, and the conveying belt is easy to idle, so that the whole conveying efficiency is influenced.

Disclosure of Invention

The invention aims to provide a roller bed to solve the technical problems of low conveying efficiency, unsafe condition and the like.

In order to achieve the purpose, the invention provides the following technical scheme: a roller bed, comprising:

a frame;

the roller assemblies are distributed on the frame in parallel at intervals, and are provided with roller shafts capable of rotating around the axes of the roller assemblies;

and the driving device is fixedly arranged on the frame and provides rotating power for the roll shaft.

As an improvement of the invention, the frame is of a rectangular strip structure, and the roller assembly is fixedly connected between the relatively long frames arranged on the frame in a micro-adjustable manner through the bearing seat assembly.

As an improvement of the present invention, the bearing housing assembly comprises:

the bearing seat body is fixedly connected to the frame through a fixed bottom plate, a waist-shaped through hole is formed in the fixed bottom plate, and the bearing seat body is fixedly connected to the fixed bottom plate through a bolt and the waist-shaped through hole in a matched mode;

the bearing is in interference fit with a through hole formed in the bearing seat body and is in transmission connection with the roll shaft;

the transverse adjusting limiting plates are arranged on two sides of the bearing seat body and are symmetrically arranged on two sides of the bearing seat body, the transverse adjusting limiting plates are fixedly connected with the fixed base plate, limiting columns are connected to the transverse adjusting limiting plates in a threaded mode, and the limiting columns make linear motion close to or far away from the bearing seat body on the transverse adjusting limiting plates.

As an improvement of the present invention, the drum assembly includes:

a roller shaft rotatably disposed on the frame in the drum assembly component;

the chain wheels are sleeved and fixed on one side of the roller shaft in the roller assembly component, and every two adjacent chain wheels synchronously rotate through a transmission chain;

each chain wheel is sleeved with at least two transmission chains;

and the rollers are symmetrically arranged on two sides of the roll shaft, rotate along with the rotation of the roll shaft and are used for conveying workpieces on the roll bed.

As an improvement of the present invention, the driving device is a driving motor, the driving motor is fixedly disposed at the middle portion of the frame, a sprocket is also disposed on an output shaft of the driving motor, and the driving motor drives the roller assemblies located at both sides of the driving motor to rotate through a transmission chain.

As an improvement of the present invention, a tensioning assembly is further fixedly arranged on the frame, and is used for tensioning the transmission chain, and the tensioning assembly comprises:

the base is fixedly connected with the frame through bolts, and a first limiting groove and a second limiting groove are symmetrically formed in the upper end face of the base;

the first limiting groove is internally inserted with a first inserted bar, the first inserted bar is arranged in an inclined manner towards the middle of the base, and a first sliding groove and a second sliding groove are formed in the inner side of the first inserted bar from bottom to top;

a second limiting groove, wherein a second inserted bar is inserted in the second limiting groove, the second inserted bar is arranged in a manner of closing to the middle of the base in an inclined manner, and a third sliding groove and a fourth sliding groove are formed in the inner side of the second inserted bar from bottom to top;

two ends of the first sliding rod are connected to the first sliding groove and the fourth sliding groove in a sliding mode through sliding shafts;

the two ends of the second sliding rod are connected to the second sliding groove and the third sliding groove in a sliding mode through sliding shafts;

the upper end of the telescopic cylinder is movably hinged with the superposed part of the first sliding rod and the second sliding rod, and the lower end of the telescopic cylinder is fixedly provided with a weight block inserted in the middle of the base;

the lower end surface of the runner seat is also respectively provided with a first clamping groove and a second clamping groove which are respectively used for being clamped with the end part of the first inserted bar and the end part of the second inserted bar;

the tensioning wheel is rotatably arranged at the upper end of the rotating wheel seat.

As an improvement of the invention, a motor protective shell is arranged on the periphery of the driving motor, and an oil receiving disc is arranged on one side, close to an output shaft of the driving motor, of the lower end of the motor protective shell.

As an improvement of the invention, the roller bed is further provided with a cover plate, the cover plate is covered above the frame through a cover plate support frame, the cover plate support frame is fixedly arranged on the upper end surface of the frame, and the upper part of the roller penetrates out of a through hole formed in the cover plate and is positioned above the cover plate for conveying a workpiece positioned on the cover plate.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

FIG. 1 is a top view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a schematic view of a drum assembly of the present invention;

FIG. 5 is an enlarged schematic view of FIG. 4 at A;

FIG. 6 is a schematic view of the structure of the present invention with the cover plate attached;

figure 7 is a schematic view of the tension assembly of the present invention.

The components in the figure are:

10-a frame;

20-roller assembly, 21-roller shaft, 22-chain wheel, 23-driving chain and 24-roller;

30-driving device, 31-driving motor, 32-output shaft, 33-motor protective shell, 34-oil receiving disc;

40-a bearing seat assembly, 41-a bearing seat body, 42-a fixed bottom plate, 43-a kidney-shaped through hole, 44-a bolt, 45-a bearing, 46-a transverse adjusting limit plate and 47-a limit column;

50-a tensioning component, 51-a base, 52-a first limiting groove, 53-a second limiting groove, 54-a first inserted link, 55-a first sliding groove, 56-a second sliding groove, 57-a second inserted link, 58-a third sliding groove, 59-a fourth sliding groove, 510-a first sliding rod, 511-a sliding shaft, 512-a second sliding rod, 513-a telescopic cylinder, 514-a balancing block, 515-a runner seat, 516-a first hinged shaft, 517-a second hinged shaft, 518-a first clamping groove, 519-a second clamping groove and 520-a tensioning wheel;

60-cover plate, 61-cover plate support frame.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Referring to fig. 1, a roller bed includes:

a frame 10;

a plurality of roller assemblies 20, a plurality of roller assemblies 20 are distributed on the frame 10 in parallel at intervals, and a roller shaft 21 capable of rotating around the axis of the roller assembly 20 is arranged on the roller assembly 20;

and the driving device 30 is fixedly arranged on the frame 10 and provides rotating power for the roller shaft 21.

The working principle of the technical scheme is as follows: the plurality of roller assemblies 20 arranged in parallel on the frame 10 rotate around their own axes in the same direction under the driving of the driving device 30, a conveying space surrounded by the frame 10 is formed in the rotating process, and the workpiece positioned at the upper end of the frame moves towards the fixed direction under the action of static friction force applied by the plurality of roller assemblies 20, so that the conveying work of the workpiece is realized.

The beneficial effects of the above technical scheme are that: according to the workpiece conveying equipment, only a part of the workpiece is placed on the roller bed, the workpiece is conveyed to the other end of the frame from one end of the frame by the plurality of roller assemblies, the whole conveying process is stable in operation, no accident occurs, the conveying efficiency is high, the space utilization rate is high, and the maintenance cost is low.

Referring to fig. 1, in one embodiment, the frame 10 is a rectangular bar structure, and the roller assembly 20 is adjustably fixed between the opposite long rims of the frame 10 by means of the bearing housing assembly 40.

The working principle of the technical scheme is as follows: when the roller assemblies 20 are used for a long time, the fixed connection part of the roller assemblies 20 and the frame 10 is inevitably loosened and abraded, so that the relative positions of the roller assemblies 20 and the frame 10 are changed, and when the included angles formed by the roller assemblies 20 and the frame 10 are different, the workpieces are subjected to friction forces exerted by the roller assemblies 20 in different directions in the conveying process, so that the positions of the workpieces are continuously changed in the conveying process of the frame 10, the conveying process is unstable, and serious workpieces can slide down from the frame 10. To avoid this, the roller assembly is arranged to be connected to the frame 10 with a fine-adjustable position, in particular by a bearing block assembly 40 with a fine-adjustment function.

The beneficial effects of the above technical scheme are that: when the position of the roller assembly 20 changes and the included angle between the roller assembly and the frame is no longer 90 degrees, the bearing seat assembly 40 with the fine adjustment function can be used for fine adjustment, so that the included angle between the roller assembly 20 and the frame is always kept at 90 degrees, and therefore workpieces can be conveyed on the roller bed stably without deviation.

Referring to fig. 5, in one embodiment, the bearing housing assembly 40 includes:

the bearing seat body 41 is fixedly connected to the frame 10 through a fixed bottom plate 42, a waist-shaped through hole 43 is formed in the fixed bottom plate 42, and the bearing seat body 41 is fixedly connected to the fixed bottom plate 42 through a bolt 44 and the waist-shaped through hole 43 in a matched mode;

the bearing 45 is in interference fit with a through hole formed in the bearing seat body 41, and the bearing 45 is in transmission connection with the roller shaft 21;

the two transverse adjusting limiting plates 46 are symmetrically arranged on two sides of the bearing seat body 41, the transverse adjusting limiting plates 46 are fixedly connected with the fixed base plate 42, limiting columns 47 are further connected to the transverse adjusting limiting plates 46 in a threaded mode, and the limiting columns 47 move on the transverse adjusting limiting plates 46 in a linear mode close to the bearing seat body 41 or far away from the bearing seat body 41.

The working principle of the technical scheme is as follows: the bearing block assembly 40 serves two purposes: firstly, the roller assembly can be rotatably arranged on the frame, and secondly, the position of the roller assembly can be finely adjusted. For the first function, the bearing seat body 41 is fixedly arranged on the frame 10 through the fixing bottom plate 42 by adopting a bolt structure, the bearing seat body 41 is provided with the bearing 45, and the roller assembly 20 is sleeved on the bearing 45, so that the roller assembly 20 can be rotatably connected on the frame. For the second function, the limiting of the limiting plate 46 and the limiting post 47 is transversely adjusted through the matching of the bolt and the kidney-shaped through hole 43, when the position of the roller assembly 20 needs to be adjusted, the bolt matched with the kidney-shaped through hole 43 is firstly unscrewed, then the limiting post 47 is rotated to move towards the direction far away from the bearing seat body 41, after the operation is finished, the bearing seat body 41 is moved at a small distance, after the roller assembly reaches a specified proper position, the bolt matched with the kidney-shaped through hole 43 is screwed down to fixedly connect the bearing seat body 41 to the frame 10, then the limiting post 47 is rotated to move towards the direction close to the bearing seat body 41, and the limiting posts 47 on the two sides clamp the bearing seat body 41 with the help of the transversely adjusted limiting plate 46 to limit the bearing seat body 41.

The beneficial effects of the above technical scheme are that: through the matching and the fixed connection of the waist-shaped through hole and the bolt and the positioning and matching of the transverse adjusting limiting plate 46 and the limiting column 47, the included angle between the roller assembly 20 and the frame can be ensured to be always kept at 90 degrees, and the double-micro-adjusting structure not only has accurate adjustment, but also is stable in connection, and the roller assembly is not easy to deviate in the conveying process.

Referring to fig. 4, in one embodiment, the drum assembly 20 includes:

a roller shaft 21 rotatably provided on the frame 10;

the chain wheels 22 are sleeved and fixed on one side of the roller shaft 21, and every two adjacent chain wheels 22 rotate synchronously through the transmission chain 23;

each chain wheel 22 is sleeved with at least two transmission chains 23;

and the rollers 24 are symmetrically arranged on two sides of the roller shaft 21 and rotate along with the rotation of the roller shaft 21 so as to convey workpieces on the roller bed.

The working principle of the technical scheme is as follows: the roller assembly 20 is used for conveying the workpiece by rotating itself. The driving device 30 drives one or more of the roll shafts 21 to rotate, the roll shafts 21 which rotate actively drive the adjacent roll shafts 21 to rotate through the matching of the plurality of chain wheels 22 and the plurality of transmission chains 23, so that the roll shafts 21 on the whole roll bed rotate around the axes of the roll shafts under the driving of the driving device 30, in the rotating process, the rollers 24 fixedly sleeved on the roll shafts 21 also rotate along with the roll shafts, the workpiece moves forwards under the action of friction force exerted by the rollers 24 until the workpiece moves from one end of the frame 10 to the other end of the frame 10, and the whole workpiece conveying process is completed through the matching of a plurality of roller assemblies.

The beneficial effects of the above technical scheme are that: the synchronous rotation between a plurality of roll shafts is realized through the cooperation of the chain wheel of the transmission chain, the transmission is stable, the idling phenomenon is not easy to occur, and the conveying efficiency is high under the driving of the driving device.

Referring to fig. 2 and 3, in one embodiment, the driving device 30 is a driving motor 31, the driving motor 31 is fixedly disposed at a middle portion of the frame 10, an output shaft 32 of the driving motor 31 is also provided with a sprocket 22, and the driving motor 31 drives the roller assemblies 20 located at both sides of the driving motor 31 to rotate through a transmission chain 23.

The working principle of the technical scheme is as follows: the driving motor 31 is arranged in the middle of the frame, an output shaft 32 of the driving motor drives the roller shafts 21 closest to two sides of the driving motor 31 to rotate actively in the same direction (clockwise or anticlockwise) through the matching connection of the chain wheel 22 and the transmission chain 23, and the roller shafts at other positions rotate synchronously with the adjacent roller shafts through the transmission chain.

The beneficial effects of the above technical scheme are that: the driving motor 31 is arranged in the middle of the frame, so that the roll shafts on two sides of the driving motor can be driven by balanced driving force, and the phenomenon that the roll shafts cannot rotate synchronously due to insufficient stress is avoided, and the final conveying effect is influenced.

Referring to fig. 7, in one embodiment, a tensioning assembly 50 is further fixedly disposed on the frame 10, the tensioning assembly 50 is disposed between two adjacent roller assemblies 20 of the frame 10 for tensioning the transmission chain 23, and the tensioning assembly 50 includes:

the base 51 is fixedly connected with the frame 10 through bolts, and a first limiting groove 52 and a second limiting groove 53 are symmetrically formed in the upper end surface of the base 51;

a first limiting groove 52, in which a first inserting rod 54 is inserted, the first inserting rod 54 is inclined toward the middle of the base 51, and a first sliding groove 55 and a second sliding groove 56 are formed on the inner side of the first inserting rod 54 from bottom to top;

a second inserting rod 57 is inserted into the second limiting groove 53, the second inserting rod 57 is obliquely arranged toward the middle of the base 51, and a third sliding groove 58 and a fourth sliding groove 59 are formed in the inner side of the second inserting rod 57 from bottom to top;

a first slide bar 510, both ends of which are slidably connected to the first slide slot 55 and the fourth slide slot 59 through a slide shaft 511;

a second sliding rod 512, both ends of which are slidably connected to the second sliding chute 56 and the third sliding chute 58 through a sliding shaft 511;

the upper end of the telescopic cylinder 513 is used as a telescopic rod, one end of the telescopic cylinder is movably hinged with the overlapped part of the first sliding rod 510 and the second sliding rod 512, and the lower end of the telescopic cylinder is used as one end of the cylinder and is fixedly provided with a balance block 514 inserted in the middle of the base 51;

a runner seat 515 fixedly connected to the first insertion rod 54 and the second insertion rod 57 through a first hinge shaft 516 and a second hinge shaft 517, respectively, and a first clamping groove 518 and a second clamping groove 519 are further formed in the lower end surface of the runner seat 515 and are respectively used for being clamped with the end of the first insertion rod 54 and the end of the second insertion rod 57;

and a tension pulley 520 rotatably disposed at an upper end of the pulley seat 515, wherein the tension pulley 520 is in tension contact with the driving chain 23.

The working principle of the technical scheme is as follows: the tension wheel 520 provides tension to the driving chain 23, so that the driving chain 23 can be tightly sleeved between the two chain wheels 22, and effective synchronous transmission between the driving chains 23 is ensured. In order to ensure that the tension wheel 520 can continuously and effectively provide tension, the main way is to ensure that the tension wheel 520 is not changed due to the tension. To achieve the purpose, a tension wheel 520 is rotatably arranged on a rotating wheel seat 515 through a bearing, the bottom of the rotating wheel seat 515 is connected with a first inserted rod 54 through a first hinge shaft 516, and is connected with a second inserted rod 57 through a second hinge shaft 517, the first inserted rod 54 is obliquely inserted on a base 51 through a first limiting groove 52, the second inserted rod 57 is obliquely inserted on the base 51 through a second limiting groove 53, two sliding rods are also slidably connected between the first inserted rod 54 and the second inserted rod 57 through a sliding shaft 511, a telescopic cylinder 513 is jointly hinged with the two sliding rods, the telescopic cylinder 513 applies upward pushing force to the first sliding rod 510 and the second sliding rod 512, the first sliding rod 510 and the second sliding rod 512 respectively apply rotating force to the first inserted rod 54 and the second inserted rod 57 far away from the middle of the base 51, the rotating force acts on the rotating wheel seat 515 to enable the rotating wheel seat 515 to have the pushing force moving upward, and the rotating wheel seat 515 is kept unchanged under the balance action of the pushing force and the tension wheel seat 515, thereby the transmission chain is always in a tensioning state. The first limiting groove 52 and the second limiting groove 53 pass through the first sliding rod 510 and the second sliding rod 512, and the first engaging groove 518 and the second engaging groove 519 are used for further limiting the position of the pulley seat 515 and preventing the position thereof from moving down. The balance weight is used to ensure that the whole device can be stably and balancedly arranged on the frame, so as to prevent the tensioning assembly 50 from rotating the wheel base 515 due to uneven stress and failing to provide effective tensioning.

The beneficial effects of the above technical scheme are that: the position of the tensioning wheel 520 can be guaranteed not to change in the long-time use process, so that effective tensioning force is provided for the transmission chain, synchronous rotation between the roll shafts is guaranteed, the phenomenon of idling is avoided, and stable conveying operation is kept.

Referring to fig. 2, in one embodiment, a motor protective housing 33 is disposed around the driving motor 31, and an oil receiving pan 34 is disposed at a lower end of the motor protective housing 33 near an output shaft 32 of the driving motor 31. The motor protection shell 33 is used for preventing the roller bed from being damaged by external force when conveying a workpiece, so that the roller bed cannot provide rotating power for the roller assembly and cannot convey the workpiece. The oil receiving pan 34 is used for receiving the engine oil dropping from the output shaft, and preventing the engine oil from polluting a work site.

Referring to fig. 6, in an embodiment, a cover plate 60 is further disposed on the roller bed, the cover plate 60 is covered above the frame 10 through a cover plate support frame 61, the cover plate support frame 61 is fixedly disposed on the upper end surface of the frame 10, and the upper portion of the roller 24 penetrates through a through hole formed in the cover plate 60 and is located above the cover plate 60 for conveying a workpiece located on the cover plate 60. The cover plate 60 is used to protect the transmission structure of the roller bed from being damaged by the workpiece, and the workpiece is prevented from being conveyed on the cover plate 60 by the static friction provided by the rollers 24 protruding from the cover plate 60, so that the workpiece is conveyed from one end of the frame to the other end of the frame safely and efficiently.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A roller bed, comprising:

a frame (10);

the roller assemblies (20) are distributed on the frame (10) in parallel at intervals, and a roller shaft (21) capable of rotating around the axis of the roller assembly (20) is arranged on the roller assembly (20);

the driving device (30) is fixedly arranged on the frame (10) and provides rotating power for the roller shaft (21);

the drum assembly (20) includes:

a roller shaft (21) rotatably disposed on the frame (10) in the drum assembly (20) assembly;

the chain wheels (22) are sleeved and fixed on one side of the roller shaft (21) in the roller assembly (20), and every two adjacent chain wheels (22) synchronously rotate through a transmission chain (23);

each chain wheel (22) is sleeved with at least two transmission chains (23);

the rollers (24) are symmetrically arranged on two sides of the roller shaft (21) and rotate along with the rotation of the roller shaft (21) so as to convey workpieces on the roller bed;

the driving device (30) is a driving motor (31), the driving motor (31) is fixedly arranged in the middle of the frame (10), an output shaft (32) of the driving motor (31) is also provided with a chain wheel (22), and the driving device also drives the roller assemblies (20) positioned on two sides of the driving motor (31) to rotate through a transmission chain (23);

the frame (10) is also fixedly provided with a tensioning assembly (50), the tensioning assembly (50) is arranged between two adjacent roller assemblies (20) of the frame (10) and is used for tensioning a transmission chain (23), and the tensioning assembly (50) comprises:

the base (51) is fixedly connected with the frame (10) through bolts, and a first limiting groove (52) and a second limiting groove (53) are symmetrically formed in the upper end face of the base (51);

the inner side of the first inserted rod (54) is provided with a first sliding chute (55) and a second sliding chute (56) from bottom to top;

a second limit groove (53) is inserted with a second inserted bar (57), the second inserted bar (57) is obliquely arranged toward the middle of the base (51), and a third sliding groove (58) and a fourth sliding groove (59) are formed in the inner side of the second inserted bar (57) from bottom to top;

a first slide bar (510), two ends of which are connected with the first sliding chute (55) and the fourth sliding chute (59) in a sliding way through a slide shaft (511);

a second sliding rod (512), two ends of which are connected with the second sliding chute (56) and the third sliding chute (58) in a sliding way through a sliding shaft (511);

the upper end of the telescopic cylinder (513) is movably hinged with the overlapped parts of the first sliding rod (510) and the second sliding rod (512), and the lower end of the telescopic cylinder is fixedly provided with a balance block (514) inserted in the middle of the base (51);

the lower end face of the runner seat (515) is also respectively provided with a first clamping groove (518) and a second clamping groove (519) which are respectively used for being clamped with the end part of the first inserted bar (54) and the end part of the second inserted bar (57);

and the tensioning wheel (520) is rotatably arranged at the upper end of the rotating wheel seat (515), and the tensioning wheel (520) is in tension contact with the transmission chain (23).

2. A roller bed according to claim 1, characterized in that: the frame (10) is of a rectangular strip structure, and the roller assembly (20) is fixedly connected between the relatively long frames of the frame (10) through a bearing seat assembly (40) in a micro-adjustable mode.

3. A roller bed according to claim 2, characterized in that: the bearing block assembly (40) comprises:

the bearing seat body (41) is fixedly connected to the frame (10) through a fixed bottom plate (42), a waist-shaped through hole (43) is formed in the fixed bottom plate (42), and the bearing seat body (41) is fixedly connected to the fixed bottom plate (42) through a bolt (44) and the waist-shaped through hole (43) in a matched mode;

the bearing (45) is matched and connected with a through hole formed in the bearing seat body (41), and the bearing (45) is in transmission connection with the roller shaft (21);

the transverse adjusting limiting plates (46) are arranged in two and are symmetrically arranged on two sides of the bearing seat body (41), the transverse adjusting limiting plates (46) are fixedly connected with the fixed base plate (42), the transverse adjusting limiting plates (46) are further connected with limiting columns (47) in a threaded mode, and the limiting columns (47) are used for making linear motion close to the bearing seat body (41) or far away from the bearing seat body (41) on the transverse adjusting limiting plates (46).

4. A roller bed according to claim 1, characterized in that: a motor protective shell (33) is arranged on the periphery of the driving motor (31), and an oil receiving disc (34) is arranged on one side, close to an output shaft (32) of the driving motor (31), of the lower end of the motor protective shell (33).

5. A roller bed according to claim 1, characterized in that: the roller bed is further provided with a cover plate (60), the cover plate (60) is covered above the frame (10) through a cover plate supporting frame (61), the cover plate supporting frame (61) is fixedly arranged on the upper end face of the frame (10), and the upper portion of the roller (24) penetrates out of a through hole formed in the cover plate (60) and is located above the cover plate (60) and used for conveying a workpiece located on the cover plate (60).