Adjustable bearing seat and roller way device

Abstract

The utility model relates to a roller way technology, in particular to an adjustable bearing seat, which comprises a guide rail seat, a bearing seat assembly in sliding connection with the guide rail seat, a base connected with the guide rail seat, and a push rod assembly arranged between the guide rail seat and the base, the push rod assembly is connected with the bearing seat assembly, and the push rod assembly is electrically connected with a control system. The utility model further relates to a roller bed device, the roller bed device can adjust the positions of the two ends of the roller in the X direction and the Z direction, and the roller bed device can adjust the center height of the roller on line automatically according to production requirements. Therefore, stress points at the two ends of the roller can be located on the same horizontal plane.

Description

Technical Field

[0001] The utility model relates to roller technology, in particular to an adjustable bearing seat and roller device. Background Art

[0002] At present, in roller conveyor devices, it is generally required that the force points at both ends of each roller are on the same horizontal plane. Otherwise, when conveying heavier objects, the rollers will be unevenly stressed, and eventually some roller motors that are under greater pressure will overload or burn out, thereby seriously affecting the production efficiency of the oxidation furnace area.

[0003] In order to ensure that the stress points at both ends of each roller are on the same horizontal plane, the existing solution is generally to perform manual adjustments based on the on-site conditions. After the existing roller bearing seat is assembled, it is directly fixed on the roller base by bolts. When the height of the roller needs to be slightly adjusted, the bearing seat and even the roller base need to be disassembled and reassembled to complete the movement. In addition, there are a large number of rollers, and the efficiency of manual adjustment is low. The accuracy of adjustment is also difficult to guarantee, which easily leads to secondary rework and adjustment, which seriously affects the production progress. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an adjustable bearing seat, which can automatically adjust the center height of the roller online according to production needs.

[0005] The technical problem that the utility model needs to solve is to provide a roller device, which can adjust the positions of the two ends of the roller in the X direction and the Z direction, so as to ensure that the force points at the two ends of the roller are located on the same horizontal plane.

[0006] In order to solve the above technical problems, the utility model provides an adjustable bearing seat, including a guide rail seat, a bearing seat assembly slidably connected to the guide rail seat, a base connected to the guide rail seat, and a push rod assembly disposed between the guide rail seat and the base, wherein the push rod assembly is connected to the bearing seat assembly, and the push rod assembly is electrically connected to a control system so that the push rod assembly can be controlled by the control system to drive the bearing seat assembly to slide on the guide rail seat.

[0007] Preferably, the guide rail seat is formed as a U-shaped structure, and the guide rail seat includes a first inner side surface, a second inner side surface, a first outer side surface and a second outer side surface opposite to each other, wherein a guide rail is provided on the first inner side surface, and the bearing seat assembly is suitable for sliding along the guide rail, and a plurality of mounting holes and a through hole suitable for the placement of the push rod assembly are provided on the second inner side surface, a first elongated waist hole is provided on the first outer side surface, and a second elongated waist hole is opened on the bottom surface of the first elongated waist hole, and the second elongated waist hole passes through the guide rail.

[0008] More preferably, a through slot is formed at the lower portion of the through hole, and the through slot penetrates the guide rail seat along the Y direction.

[0009] Further preferably, the bearing seat assembly includes a bearing seat and a bearing mounted in cooperation with the bearing seat, and the bearing seat is provided with a slot, and the slot is adapted to the guide rail so that the bearing seat can slide along the guide rail.

[0010] Specifically, a transition piece is provided on or integrally formed with the bottom surface of the bearing seat, and the transition piece is adapted to the push rod assembly.

[0011] Preferably, the base is provided with a plurality of threaded holes suitable for connection with the guide rail seat, a plurality of waist-shaped through holes and an open groove suitable for placement of the push rod assembly, and a plurality of threaded connection holes are provided in the open groove.

[0012] On the other hand, the utility model provides a roller device, including a roller, a roller base and the above-mentioned adjustable bearing seat, the two ends of the roller are connected to the adjustable bearing seat, the adjustable bearing seat is connected to the roller base through a translation component, the translation component includes an adjustable component and a slider connected to the adjustable component, and the adjustable component can adjust the adjustable bearing seat in the X direction.

[0013] Preferably, the slider is formed into a U-shaped structure, and the slider can be clamped on the roller base so that the slider can slide on the roller base.

[0014] More preferably, the adjustable component includes symmetrically arranged vertical frames and a horizontal plate connected between two of the vertical frames, and the two vertical frames and the horizontal plate are connected to form a U-shaped structure.

[0015] Further preferably, the stand is provided with an adjusting bolt and an adjusting nut, and the adjusting bolt passes through the stand and is connected to the adjustable bearing seat, so that the adjustable bearing seat can be pushed to move back and forth in the X direction by rotating the adjusting bolt.

[0016] Compared with the prior art, the adjustable bearing seat described in the utility model has the following beneficial effects:

[0017] (1) The push rod assembly of the utility model is connected to the bearing seat assembly, and the push rod assembly is electrically connected to the control system, so that the position of the bearing seat assembly in the Z direction can be adjusted online remotely through the control system;

[0018] (2) The guide rails on the guide rail assembly of the utility model are adapted to be connected with the slots on the bearing seat to limit the displacement of the bearing seat assembly in the X and Y directions, thereby preventing the bearing seat assembly from generating multi-directional displacement under the drive of the push rod assembly.

[0019] In addition, the roller device of the utility model has the following beneficial effects:

[0020] (1) Both ends of the roller of the utility model are connected with an adjustable bearing seat, and the displacement of the adjustable bearing seat in the Z direction can be adjusted online to maintain the horizontality of a single roller and the force points at both ends of each roller are kept on the same horizontal plane;

[0021] (2) The roller of the utility model is connected to the translation assembly through an adjustable bearing seat, and the verticality of the central axis of a single roller and the roller base can be adjusted through the translation assembly.

[0022] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation to the present invention. In the accompanying drawings:

[0024] Figure 1 It is a structural schematic diagram of a roller conveyor device in an embodiment of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure after the adjustable bearing seat and the translation assembly are assembled in the embodiment of the utility model;

[0026] Figure 3 It is a schematic front view of an adjustable bearing seat in an embodiment of the utility model;

[0027] Figure 4 It is a structural schematic diagram of the guide rail seat in the embodiment of the utility model;

[0028] Figure 5 It is a structural schematic diagram of a base in an embodiment of the utility model.

[0029] Description of Reference Numerals

[0030] 1-roller, 2-adjustable bearing seat, 201-guide rail seat, 2011-first inner side, 2012-guide rail, 2013-second outer side, 2014-second inner side, 2015-through hole, 2016-through slot, 2017-first elongated waist hole, 2018-first outer side, 2019-second elongated waist hole, 202-bearing seat assembly, 2021-bearing seat, 20211-adapter Parts, 2022-bearing, 203 push rod assembly, 2031-screw outer cylinder, 2032-drive motor, 2033-clearance surface, 2034-mounting seat, 204-base, 2041-waist hole, 2042-threaded hole, 2043 open groove, 3-roller base, 4-translation assembly, 401-slider, 402-frame, 403-cross plate, 404-adjusting bolt, 405-adjusting nut. DETAILED DESCRIPTION

[0031] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation modes described herein are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the specific implementation modes described below.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the description of the present invention, the directional words related to "X direction", "Y direction" and "Z direction" are all described based on the directions marked in the drawings. It should be understood that the directional terms are based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0035] See also Figures 2 to 3The utility model provides an adjustable bearing seat, including a guide rail seat 201, a bearing seat assembly 202 slidably connected to the guide rail seat 201, a base 204 connected to the guide rail seat 201, and a push rod assembly 203 placed between the guide rail seat 201 and the base 204, wherein the push rod assembly 203 is connected to the bearing seat assembly 202, and the push rod assembly 203 is electrically connected to the control system so that the push rod assembly 203 can be controlled by the control system to drive the bearing seat assembly 202 to slide on the guide rail seat 201. The above-mentioned push rod assembly can be an electric push rod in the prior art, including a screw outer cylinder 2031, a drive motor 2032, a screw and a mounting seat 2034. There is a gap between the screw outer cylinder 2031 and the drive motor 2032. The screw shaft end is connected to the bottom of the bearing seat assembly 202. The mounting seat 2034 is fixedly connected to the base 204. The push rod assembly 203 has a built-in CAN bus, and remote communication between the push rod assembly 203 and the touch screen is achieved through the CAN bus communication protocol. The user can remotely control the working state of the push rod assembly 203 by operating the touch screen, that is, the user can adjust the displacement of the bearing seat assembly 202 in the Z direction of the guide rail seat 201 online.

[0036] See also Figure 3 to Figure 4 The guide rail seat 201 in this embodiment is formed into a U-shaped structure, and the guide rail seat 201 includes a first inner side surface 2011, a second inner side surface 2014, a first outer side surface 2018 and a second outer side surface 2013 opposite to each other, wherein the first inner side surface 2011 is provided with a guide rail 2012, and the bearing seat assembly 202 is suitable for sliding along the guide rail 2012. According to actual usage, limit blocks can be set at the head and tail ends of the guide rail 2012 to prevent the bearing seat assembly 202 from being over-displaced on the guide rail 2012, which ultimately causes the bottom surface of the bearing seat assembly 202 to collide and rub with the second inner side surface 2014 of the guide rail seat 201. The second inner side surface 2014 is provided with a plurality of mounting holes and a through hole 2015 suitable for placing the push rod assembly 203. The plurality of mounting holes may be countersunk holes and through holes. The plurality of mounting holes may be arranged symmetrically in a parallelogram on the second inner side surface 2014. The through hole 2015 is located in the middle of the second inner side surface 2014 to ensure that after the push rod assembly 203 is placed at the through hole 2015, its screw rod is located in the middle position. The first outer side surface 2018 is provided with a first elongated waist hole 2017, and a second elongated waist hole 2019 is opened on the bottom surface of the first elongated waist hole 2017, and the second elongated waist hole 2019 passes through the guide rail 2012. Bolts may be passed through the first elongated waist hole 2017 and the second elongated waist hole 2019 to connect with the bearing seat assembly 202, thereby further completing the limitation and fixation of the bearing seat assembly 202 in the Z direction, and avoiding the instability of the bearing seat assembly 202 being positioned solely by the support of the push rod assembly 203.

[0037] In this embodiment, reference Figure 2, a through slot 2016 is provided at the lower part of the through hole 2015, and the through slot 2016 penetrates the guide rail seat 201 along the Y direction. The push rod assembly in this embodiment can be an electric push rod in the prior art, which includes a screw outer cylinder 2031, a drive motor 2032, a screw and a mounting seat 2034, and a gap surface 2033 exists between the screw outer cylinder 2031 and the drive motor 2032. The screw outer cylinder 2031 passes through the through hole 2015 from bottom to top, and a part of the outer side surface of the drive motor 2032 is abutted against the second outer side surface 2013. The structure at the junction of the screw outer cylinder 2031 and the drive motor 2032 is suitable for being placed in the cavity formed by the through hole 2015 and the through slot 2016, and the upper surface of the through slot 2016 is abutted against or close to the gap surface 2033.

[0038] In this embodiment, reference Figure 3 The bearing seat assembly 202 includes a bearing seat 2021 and a bearing 2022 mounted in cooperation with the bearing seat 2021. The structure of the bearing 2022 and the structure of the bearing 2022 and the bearing seat 2021 are both prior arts and will not be described in detail here. The left and right sides of the bearing seat 2021 are provided with a card slot, which is adapted to the guide rail 2012 so that the bearing seat 2021 can slide along the guide rail 2012. The coordinated movement of the guide rail 2012 and the bearing seat 2021 limits the movement of the bearing seat 2021 in the X direction and the Y direction, thereby ensuring that the bearing seat 2021 always moves in the direction of the force of the push rod assembly 203 under the up and down push of the push rod assembly 203, avoiding the bearing seat 2021 from generating displacement in all directions during the movement, thereby affecting the control system's judgment on the displacement of the bearing seat 2021, resulting in the same displacement value input for each bearing seat 2021, and finally the actual displacement is inconsistent. This may affect the accuracy of adjusting the Z-direction position of the bearing seat 2021. In this embodiment, a connecting hole is provided in the bearing seat slot, and the connecting hole is located in the middle position of the slot, and the connecting hole can be a threaded hole. When the bearing seat 2021 reaches the specified position under the push of the push rod assembly 203, the bolt can be passed through the first elongated waist hole 2017 and the second elongated waist hole 2019 to be threadedly connected with the bearing seat 2021, so as to further maintain the position of the bearing seat 2021 in the Z direction, and avoid the risk of the bearing seat 2021 being only fixed by the limit of the push rod assembly 203, that is, to avoid the bearing seat 2021 falling back to the lowest point after the limit of the push rod assembly 203 fails. In addition, in addition to the above-mentioned bolt threaded connection method to lock the bearing seat 2021 and the guide rail seat 201, an electric locking structure can also be used. The electric locking structure is fixed on both sides of the bearing seat 2021. When the bearing seat 2021 reaches the specified position, the electric locking structure automatically extends outward and is inserted into the first elongated waist hole 2017. The directional words "left", "right", "up" and "down" in the above description are based on Figure 3 The direction of the adjustable bearing seat is determined.

[0039] In this embodiment, the bottom surface of the bearing seat 2021 is provided with or integrally formed with an adapter 20211, and the adapter 20211 is adapted to the push rod assembly 203. The adapter 20211 can be Figure 3 The cylindrical structure with a smaller diameter shown in the figure, the small-sized adapter 20211 can be welded and fixedly connected with the bearing seat 2021 or integrally formed. The adapter 20211 can also be a larger square piece, and the large-sized adapter 20211 can be threaded and fixedly connected with the bearing seat 2021. The top of the screw rod of the push rod assembly 203 is provided with a pin hole, and the adapter 20211 is formed with an assembly hole adapted to the screw rod diameter of the push rod assembly 203 and a pin hole cross-shaped with the assembly hole, and the pin hole diameter of the adapter 20211 is the same as the pin hole diameter of the screw rod, and the bearing seat 2021 can be fixedly connected with the push rod assembly 203 by inserting a pin into the adapter 20211 and the pin hole of the screw rod in sequence.

[0040] In this embodiment, see Figure 5 The base 204 is provided with a plurality of threaded holes 2042 suitable for connection with the guide rail base 201, a plurality of waist-shaped through holes 2041, and an open groove 2043 suitable for placement of the push rod assembly 203, and a plurality of threaded connection holes are provided in the open groove 2043. The threaded holes 2042 correspond to the mounting holes on the guide rail base 201 one by one, and the threaded holes 20426 are obliquely symmetrically distributed on the base 204 with the central axis of the base 204 as the symmetry axis, and the waist-shaped through holes 2041 are symmetrically distributed on the base 204 with the central axis of the base 204 as the symmetry axis. The opening depth of the open groove 2043 can be the depth of the mounting seat 2034 of the push rod assembly 203, and the mounting seat 2034 of the push rod assembly 203 can be fixedly connected with the base 204 by bolts. However, there are many other embodiments for the depth of the opening groove 2043. For example, the depth of the opening groove 2043 may be 0. In this embodiment, the depth of the through groove 2016 of the guide rail seat 201 is the depth of the mounting seat 2034 including the push rod assembly 203. For another example, the depth of the opening groove 2043 may be a partial depth that can accommodate the push rod assembly 203, and the depth may include the structural depth of the connection between the screw outer cylinder 2031 and the drive motor 2032 and the depth of the mounting seat 2034. In this embodiment, the depth of the through groove 2016 of the guide rail seat 201 is 0, that is, no through groove 2016 is provided in the guide rail seat 201.

[0041] See also Figure 1The utility model also provides a roller device, including a roller 1, a roller base 3 and the above-mentioned adjustable bearing seat 2, the two ends of the roller 1 are connected to the adjustable bearing seat 2, the adjustable bearing seat 2 is connected to the roller base 3 through a translation component 4, the translation component 4 includes an adjustable component and a slider 401 connected to the adjustable component, and the adjustable component can adjust the adjustable bearing seat 2 in the X direction. The roller base 3 is relatively arranged, and its length is not limited to the attached embodiment of the present invention. Figure 1 The length in the middle can be adjusted according to the actual use. The structure of the slider 401 of the translation assembly 4 is adapted to the structure of the roller base 3, so that the slider 401 can slide on the roller base 3. The roller base 3 is slidably connected with multiple sliders 401. The sliders 401 on the roller base 3 arranged opposite to each other are arranged one by one, and the positions of the relative sliders 401 in the X direction remain basically consistent. The adjustable bearing seat 2 can be fixedly connected to the adjustable assembly of the translation assembly 4 by bolts, and the gap between each adjustable bearing seat 2 on a single roller base 3 can be adjusted by adjusting the gap between each slider 401, so as to adjust the gap between each roller 1, so as to meet the transmission function for objects of different sizes. The connection surface of the roller base 3 with the slider 401 can be provided with multiple threaded holes, or T-shaped grooves, so that the slider 401 after the initial adjustment can be fixedly connected to the roller base 3 by bolts.

[0042] In this embodiment, the slider 401 is formed into a U-shaped structure, and the slider 401 can be clamped on the roller base 3 so that the slider 401 can slide on the roller base 3. The roller base 3 in this embodiment can be any structure with a long straight horizontal surface. In addition, the clamping part between the bottom of the slider 401 and the roller base 3 can also be formed into an inwardly buckled bevel clamping structure. In this embodiment, the roller base 3 is an I-shaped structure, and the bevel clamping structure of the slider 401 can be effectively clamped into the grooves on both sides of the roller base 3, thereby effectively preventing the slider 401 from tipping over when sliding on the roller base 3.

[0043] In this embodiment, please refer to Figure 2 The adjustable assembly includes symmetrically arranged vertical frames 402 and a horizontal plate 403 connected between the two vertical frames 402. The two vertical frames 402 and the horizontal plate 403 are connected to form a U-shaped structure. The vertical frames 402 may be provided with a plurality of threaded holes for fixedly connecting with the horizontal plate 403, the horizontal plate 403 may be provided with a plurality of threaded holes for fixedly connecting with the slider 401, and the horizontal plate 403 is also provided with a plurality of threaded holes for connecting with the base 204 of the adjustable bearing seat 2.

[0044] In this embodiment, please refer to Figure 2, the stand 402 is provided with an adjusting bolt 404 and an adjusting nut 405, the adjusting bolt 404 passes through the stand 402 and is connected to the adjustable bearing seat 2, so that the adjustable bearing seat 2 can be pushed to move back and forth in the X direction by rotating the adjusting bolt 404. A pin hole is opened on a section of the adjusting bolt 404, and a pin hole of the same size is opened on the adjusting nut 405. The adjusting bolt passes through the adjusting hole on the stand 402, and the adjusting nut 405 abuts against the outer side of the stand 402. A pin can be passed through the adjusting nut 405 and the pin hole of the adjusting bolt 404 in sequence to limit the displacement of the adjusting bolt 404 in the X direction and the Y direction, and the adjusting hole limits the displacement of the adjusting bolt 404 in the Z direction, so that the adjusting bolt 404 can only rotate. The other end of the adjusting bolt 404 with thread is threadedly connected to the base 204. Since the adjusting bolt 404 can only rotate, the base 204 can be pushed to move left and right on the horizontal plate 403 by rotating the adjusting bolt 404 to complete the fine adjustment of the adjustable bearing seat 2 in the left and right directions, so as to ensure the verticality of the central axis of the roller 1 and the horizontal plane where the roller base 3 is located. In addition, the adjustable component can also be set as a structural component driven by a motor to rotate, and the adjusting bolt 404 is driven by the motor to rotate, so as to push the adjustable bearing seat 2 to move left and right on the horizontal plate 403. An electric push rod can also be fixedly installed on the slider 401, and the shaft end of the electric push rod is fixedly connected to the base 204, and the electric push rod is electrically connected to the control system, so that the electric push rod can be driven online remotely to push the adjustable bearing seat 2 to move left and right on the horizontal plate 403. After the fine adjustment is completed, the adjustable bearing seat 2 can be fixedly installed on the horizontal plate 403 by bolts to prevent the adjusted adjustable bearing seat 2 from being offset again due to the accidental touch of the adjusting bolt 404. The above-mentioned “left” indicates a direction opposite to the X direction, and “right” indicates the same direction as the X direction.

[0045] The adjustable bearing seat 2 of the utility model can realize the up and down movement of the bearing seat assembly 202 in the Z direction through the push rod assembly 203, and the push rod assembly 203 is electrically connected to the control system, and the user can remotely control the control panel online to adjust the Z direction position of the bearing seat assembly 202. The setting of the guide rail 2012 can effectively ensure that the bearing seat assembly 202 always maintains the same direction during the movement process, and avoids the bearing seat assembly 202 due to multi-directional displacement, so that the driving motor 2032 needs more pulses to make the bearing seat assembly 202 reach the specified position, and it is easy to generate more errors, thereby affecting the position accuracy.

[0046] The roller device of the utility model adopts an adjustable bearing seat 2 that can be adjusted in the Z direction and a translation assembly 4 that can be adjusted in the X direction, which can effectively ensure that the force points at both ends of each roller 1 are maintained on the same horizontal plane, and can ensure the verticality of the central axis of a single roller 1 and the horizontal plane where the roller base 3 is located. It meets the user's demand for online adjustment of the horizontality of each roller 1 according to the usage situation, avoids uneven force on each roller 1 due to different horizontality, and causes excessive wear of the roller 1 with excessive force, thereby extending the service life of each roller 1, and has high adjustment accuracy and fast adjustment speed, without manual adjustment.

[0047] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0048] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0049] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. An adjustable bearing seat, characterized in that: The invention comprises a guide rail seat (201), a bearing seat assembly (202) slidably connected to the guide rail seat (201), a base (204) connected to the guide rail seat (201), and a push rod assembly (203) disposed between the guide rail seat (201) and the base (204), wherein the push rod assembly (203) is connected to the bearing seat assembly (202), and the push rod assembly (203) is electrically connected to a control system so that the push rod assembly (203) can be controlled by the control system to drive the bearing seat assembly (202) to slide on the guide rail seat (201).

2. The adjustable bearing seat according to claim 1, characterized in that: The guide rail seat (201) is formed into a U-shaped structure, and the guide rail seat (201) includes a first inner side surface (2011), a second inner side surface (2014), a first outer side surface (2018) and a second outer side surface (2013) opposite to each other, wherein the first inner side surface (2011) is provided with a guide rail (2012), the bearing seat assembly (202) is suitable for sliding along the guide rail (2012), the second inner side surface (2014) is provided with a plurality of mounting holes and a through hole (2015) suitable for the placement of the push rod assembly (203), the first outer side surface (2018) is provided with a first elongated waist hole (2017), and a second elongated waist hole (2019) is opened on the bottom surface of the first elongated waist hole (2017), and the second elongated waist hole (2019) passes through the guide rail (2012).

3. The adjustable bearing seat according to claim 2, characterized in that: A through slot (2016) is provided at the lower portion of the through hole (2015), and the through slot (2016) penetrates the guide rail seat (201) along the Y direction.

4. The adjustable bearing seat according to claim 3, characterized in that: The bearing seat assembly (202) comprises a bearing seat (2021) and a bearing (2022) mounted in cooperation with the bearing seat (2021); a slot is provided on the bearing seat (2021), and the slot is adapted to match the guide rail (2012) so as to enable the bearing seat (2021) to slide along the guide rail (2012).

5. The adjustable bearing seat according to claim 4, characterized in that: The bottom surface of the bearing seat (2021) is provided with or integrally formed with an adapter (20211), and the adapter (20211) is compatible with the push rod assembly (203).

6. The adjustable bearing seat according to any one of claims 1 to 5, characterized in that: The base (204) is provided with a plurality of threaded holes (2042) suitable for connection with the guide rail seat (201), a plurality of waist-shaped through holes (2041), and an open groove (2043) suitable for accommodating the push rod assembly (203), and a plurality of threaded connection holes are provided in the open groove (2043).

7. A roller device, characterized in that: It comprises a roller (1), a roller base (3) and an adjustable bearing seat (2) according to any one of claims 1 to 6, wherein both ends of the roller (1) are connected to the adjustable bearing seat (2), and the adjustable bearing seat (2) is connected to the roller base (3) via a translation component (4), and the translation component (4) comprises an adjustable component and a slider (401) connected to the adjustable component, and the adjustable component can adjust the adjustable bearing seat (2) in the X direction.

8. The roller device according to claim 7, characterized in that: The slider (401) is formed into a U-shaped structure, and the slider (401) can be clamped on the roller base (3) so that the slider (401) can slide on the roller base (3).

9. The roller device according to claim 8, characterized in that: The adjustable component comprises symmetrically arranged vertical frames (402) and a horizontal plate (403) connected between two of the vertical frames (402); the two vertical frames (402) and the horizontal plate (403) are connected to form a U-shaped structure.

10. The roller device according to claim 9, characterized in that: The stand (402) is provided with an adjusting bolt (404) and an adjusting nut (405); the adjusting bolt (404) passes through the stand (402) and is connected to the adjustable bearing seat (2), so that the adjustable bearing seat (2) can be pushed to move back and forth in the X direction by rotating the adjusting bolt (404).

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