Pressing wheel device

Abstract

The utility model discloses a pinch roller device which comprises an installation frame, two longitudinal beams extending in the vertical direction are arranged on the installation frame, the two longitudinal beams are oppositely arranged in the first direction, and the first direction is perpendicular to the vertical direction. The pressing wheel assembly is provided with a mounting cross beam, two mounting parts and two pressing wheels, the mounting cross beam is connected between the two longitudinal beams and extends in the first direction, the two mounting parts are arranged at the lower end of the mounting cross beam and are oppositely arranged in the first direction, and the two pressing wheels are arranged on the two mounting parts correspondingly; and the pressing wheel is positioned on the lower side of the mounting cross beam. Compared with the mode that two pressing wheels are installed at the same time through one wheel shaft, after the belt is pressed by the pressing wheels, the vertical space between the two pressing wheels is larger, the height of materials capable of being stacked on the belt is higher, only the stacking height of the materials needs to be smaller than the height of the installation cross beam, limitation to the material conveying capacity of the belt is reduced, and the conveying efficiency of the belt is improved. And the belt can convey more materials.

Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, and in particular to a pressure roller device. Background Technology

[0002] Belt conveyors commonly use a three-roller idler structure, with the two side idlers inclined upwards, making the sides of the belt higher than the middle section. When the belt conveyor moves upwards or downwards, idlers are used to define the belt into horizontal and inclined sections. In practical applications, it has been found that at the junction between the horizontal and inclined sections, the belt deforms, becoming taut upwards instead of the previously defined high-sides-low-middle state, causing material to scatter and overflow. The existing solution is to install pressure rollers at the belt junctions, using the pressure rollers to press down on the belt and prevent upward tautness. A conventional pressure roller device includes a mounting frame, axle, and two pressure rollers. The two pressure rollers are mounted on the axle for pressing down the belt, and the axle is mounted on the mounting frame. This structure has a drawback: the material accumulation space above the belt (between the two pressure rollers) is limited. The material accumulation height cannot exceed the axle, otherwise it will collide with the axle, thus significantly limiting the belt's material conveying capacity. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a pressure roller device that can reduce the limitation on the material conveying capacity of belts.

[0004] The pressure roller device according to an embodiment of the present utility model includes:

[0005] The mounting frame is provided with two vertically extending longitudinal beams, which are arranged opposite each other along a first direction, which is perpendicular to the vertical direction;

[0006] The pressure roller assembly includes a mounting beam, two mounting portions, and two clamping rollers. The mounting beam is connected between two longitudinal beams and extends along the first direction. The two mounting portions are located at the lower end of the mounting beam and are arranged opposite to each other along the first direction. The two clamping rollers are respectively located at the two mounting portions and are located on the lower side of the mounting beam.

[0007] The pressure roller device according to the embodiment of this utility model has at least the following beneficial effects:

[0008] By setting up an installation beam and providing two mounting parts at the lower end of the installation beam to install two clamping rollers respectively, compared to using a single axle to install two clamping rollers simultaneously (where the clamping rollers are coaxial with the axle), this embodiment provides a larger vertical space between the two clamping rollers after they clamp the belt. This allows for a higher material accumulation height on the belt, as the material accumulation height only needs to be less than the height of the installation beam. This reduces the limitation on the belt's material conveying capacity, enabling the belt to convey more material and improving conveying efficiency.

[0009] According to some embodiments of the present invention, a reinforcing beam is connected between the mounting part and the adjacent longitudinal beam, and the reinforcing beam is located on the lower side of the mounting crossbeam.

[0010] According to some embodiments of the present invention, one end of the reinforcing beam is connected to the mounting part, and the other end is detachably connected to the longitudinal beam through a connecting structure. The mounting crossbeam is vertically and vertically disposed between the two longitudinal beams, and when the mounting crossbeam is at multiple different height positions, the reinforcing beam can be detachably connected to the longitudinal beam through the connecting structure.

[0011] According to some embodiments of this utility model, a top plate is horizontally provided at the top of the longitudinal beam, and a lifting assembly is provided between the top plate and the mounting crossbeam. The lifting assembly is provided with:

[0012] An adjusting screw is vertically inserted into the top plate, and its bottom end is fixedly connected to the mounting beam.

[0013] Two sets of adjusting nuts are located on the upper and lower sides of the top plate, respectively, and are threadedly connected to the adjusting screw.

[0014] According to some embodiments of the present invention, the connecting structure is provided with connecting bolts, the longitudinal beam is provided with multiple sets of first connecting holes, the multiple sets of first connecting holes are arranged vertically at intervals, the reinforcing beam is provided with a set of second connecting holes, and the second connecting holes in the same set can be aligned with any set of first connecting holes and the connecting bolts can be inserted to connect the reinforcing beam and the longitudinal beam.

[0015] According to some embodiments of the present invention, at least one of the first connecting hole and the second connecting hole is configured as a vertically distributed waist-shaped hole.

[0016] According to some embodiments of the present invention, the mounting part is connected to a guide plate, the guide plate is provided with a first plate and a second plate, the first plate is located between the two pressing wheels and is arranged perpendicular to the first direction, one end of the second plate is fixed to one end of the first plate along the second direction, and the other end of the second plate extends to the side of the adjacent pressing wheel away from the first plate, wherein the first direction, the second direction and the vertical direction are arranged perpendicular to each other.

[0017] According to some embodiments of the present invention, a rubber plate is provided on the side surface of the guide plate opposite to the adjacent pressing wheel.

[0018] According to some embodiments of the present invention, the mounting bracket is further provided with:

[0019] A connecting beam is provided, with both ends of the connecting beam connected to the tops of the two longitudinal beams respectively;

[0020] A support beam, one end of which is connected to the upper part of the longitudinal beam, and the other end is inclined downward relative to the longitudinal beam.

[0021] According to some embodiments of this utility model, the mounting part is provided with:

[0022] A support, which is connected to the lower end of the mounting beam;

[0023] A mounted bearing, wherein the mounted bearing is detachably connected to the support;

[0024] The mounting shaft is rotatably mounted on the bearing with a seat, and the rotation axis of the mounting shaft is parallel to the first direction;

[0025] The clamping wheel is coaxially sleeved on the mounting shaft and detachably connected to the mounting shaft.

[0026] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0028] Figure 1 This is a schematic diagram of the installation structure of an embodiment of this utility model;

[0029] Figure 2 yes Figure 1 Side view;

[0030] Figure 3 yes Figure 1 Top view;

[0031] Figure 4 This is a schematic diagram of the installation structure of the pressure wheel according to an embodiment of the present invention.

[0032] Icon labels:

[0033] Mounting bracket 100, longitudinal beam 110, first connecting hole 111, top plate 120, connecting crossbeam 130, support beam 140;

[0034] Pressure roller assembly 200, mounting beam 210, connecting seat 211, mounting part 220, support 221, seated bearing 222, mounting shaft 223, pressure roller 230, guide plate 240, first plate 241, second plate 242, rubber plate 250;

[0035] Reinforcing beam 300, second connecting hole 301;

[0036] Lifting assembly 400, adjusting screw 410, adjusting nut 420, locking nut 430. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0040] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0041] Belt conveyors commonly use a three-roller structure with the two outer rollers inclined upwards, making the sides of the belt higher than the middle section. When the belt conveyor moves upwards or downwards, these rollers are used to define the belt into horizontal and inclined sections. In practical applications, it has been found that at the junction between the horizontal and inclined sections, the belt deforms, becoming taut upwards instead of the previously defined high-sides-low-middle state, causing material to scatter and overflow. The existing solution is to install pressure rollers at the belt junctions, using the pressure rollers to press down on the belt and prevent upward tautness. A conventional pressure roller device includes a mounting frame, an axle, and two pressure rollers. The two pressure rollers are mounted on the axle and used to press down on the belt on the inclined rollers. The axle is mounted on the mounting frame. This structure has a drawback: the material accumulation space above the belt (between the two pressure rollers) is limited. The material accumulation height cannot exceed the axle, otherwise it will collide with the axle, thus significantly limiting the belt's material conveying capacity.

[0042] In response to this problem, this utility model proposes a pressure roller device that can effectively improve the above-mentioned issues.

[0043] Reference Figures 1 to 4 As shown, a pressure roller device according to an embodiment of the present invention includes: a mounting frame 100 and a pressure roller assembly 200.

[0044] The mounting frame 100 is provided with two vertically extending longitudinal beams 110. The two longitudinal beams 110 are arranged opposite each other along a first direction, which is perpendicular to the vertical direction. It can be understood that the two longitudinal beams 110 are installed on the frame of the belt conveyor, and the two longitudinal beams 110 are located on both sides of the belt, and the first direction is the width direction of the belt.

[0045] The pressure roller assembly 200 is provided with a mounting beam 210, two mounting parts 220 and two pressing rollers 230. The mounting beam 210 is connected between two longitudinal beams 110 and extends along a first direction. The two mounting parts 220 are located at the lower end of the mounting beam 210 and are arranged opposite to each other along the first direction. The two pressing rollers 230 are respectively located in the two mounting parts 220 and are located on the lower side of the mounting beam 210. The two pressing rollers 230 are used to press down the belts on the inclined idlers on both sides.

[0046] The pressure roller device of this utility model embodiment, by setting a mounting beam 210 and setting two mounting parts 220 at the lower end of the mounting beam 210 to install two pressure rollers 230 respectively, thus, compared with using a wheel axle to install two pressure rollers at the same time (the pressure rollers and wheel axle are set coaxially), in this embodiment, after the pressure rollers 230 press the belt, the vertical space between the two pressure rollers 230 becomes larger, and the material that can be piled up on the belt is higher. It is only necessary to make the material pile height less than the height of the mounting beam 210, which reduces the limitation on the material conveying capacity of the belt, and the belt can convey more material, thereby improving the conveying efficiency.

[0047] Reference Figure 1 and Figure 2 As shown, in some embodiments of this utility model, a reinforcing beam 300 is connected between the mounting part 220 and the adjacent longitudinal beam 110. That is, the two ends of the reinforcing beam 300 are respectively connected to the mounting part 220 and the longitudinal beam 110 adjacent to the mounting part 220. The reinforcing beam 300 is located on the opposite sides of the two mounting parts 220 and is located on the lower side of the mounting crossbeam 210. It can be understood that when the bottom end of the pressure wheel 230 presses the belt, it will be subjected to the reaction force of the belt, which is then transmitted to the mounting part 220. Since the belt pressed by the pressure wheel 230 is inclined upward, the direction of this reaction force is inclined upward between the two mounting parts 220. Therefore, in this embodiment, a reinforcing beam 300 is provided between the longitudinal beam 110 and the adjacent mounting part 220 to enhance the structural stability of the mounting part 220.

[0048] Reference Figure 1 and Figure 2As shown, in some embodiments of this utility model, one end of the reinforcing beam 300 is connected to the mounting part 220, and the other end is detachably connected to the longitudinal beam 110 through a connecting structure. The mounting crossbeam 210 is vertically and vertically positioned between the two longitudinal beams 110. When the mounting crossbeam 210 is at multiple different height positions, the reinforcing beam 300 can be detachably connected to the longitudinal beam 110 through the connecting structure. Obviously, by setting the mounting crossbeam 210 to be vertically and vertically adjustable, the pressure roller 230 can be adjusted to adapt to different working conditions and adjust the pressure. Furthermore, to allow the mounting crossbeam 210 to be vertically and vertically positioned at multiple different height positions, the reinforcing beam 300 can be detachably connected to the longitudinal beam 110. All reinforcing beams 300 serve a structural strengthening function. In this embodiment, the reinforcing beams 300 are detachably connected to the longitudinal beams 110 via a connecting structure. When the mounting beams 210 are at multiple different height positions, the reinforcing beams 300 can be connected to the longitudinal beams 110 via the connecting structure. Specifically, when it is necessary to adjust the height position of the mounting beams 210, the connecting structure between the longitudinal beams 110 and the reinforcing beams 300 is first removed, disconnecting the connection between the longitudinal beams 110 and the reinforcing beams 300. Then, the mounting beams 210 are adjusted to the corresponding height, and the connecting structure is then reused to reconnect the longitudinal beams 110 and the reinforcing beams 300. It is conceivable that the reinforcing beams 300 and the mounting part 220 could also be detachably connected, but when adjusting the height position of the mounting beams 210, the connection between the reinforcing beams 300 and the mounting part 220 does not need to be disconnected.

[0049] Reference Figure 1 and Figure 2 As shown, in some embodiments of this utility model, a top plate 120 is horizontally provided at the top of the longitudinal beam 110. A lifting assembly 400 is provided between the top plate 120 and the mounting beam 210. The lifting assembly 400 is provided with an adjusting screw 410 and two sets of adjusting nuts 420. The adjusting screw 410 is vertically inserted through the top plate 120, and the bottom end of the adjusting screw 410 is fixedly connected to the mounting beam 210. The two sets of adjusting nuts 420 are located on the upper and lower sides of the top plate 120 respectively and are threadedly connected to the adjusting screw 410. The two sets of adjusting nuts 420 clamp the top plate 120. The lifting assembly 400 is provided at both ends of the mounting beam 210. When it is necessary to adjust the height of the mounting beam 210, simply screw the adjusting nuts 420 on the upper and lower sides of the top plate 120 respectively to move the adjusting screw 410 vertically, thereby realizing the height adjustment of the mounting beam 210. The structure is simple and the operation is convenient.

[0050] It is conceivable that, in some embodiments, a base plate can be welded to the bottom end of the adjusting screw 410, and the base plate can be locked and fixed to the mounting beam 210 by fasteners to achieve the connection with the mounting beam 210; in other embodiments, such as Figure 1As shown, a connecting seat 211 can also be set on the mounting beam 210, so that the bottom end of the adjusting screw 410 passes through the connecting seat 211, and locking nuts 430 are threadedly connected to the opposite sides of the connecting seat 211 on the adjusting screw 410, so that the adjusting screw 410 is locked and fixed on the connecting seat 211 by the locking nuts 430 on both sides.

[0051] In addition, to make the lifting and lowering of the mounting beam 210 smoother, a guide structure can be set between the mounting beam 210 and the longitudinal beam 110 to provide guidance and limit for the vertical movement of the mounting beam 210. The guide structure can be a sliding block and a sliding groove, or some other structural forms. There are many forms of guide structures, which are existing technologies, so they will not be described in detail here.

[0052] Reference Figure 1 and Figure 2 As shown, in some embodiments of this utility model, the connecting structure is provided with connecting bolts (not shown in the figure), the longitudinal beam 110 is provided with multiple sets of first connecting holes 111, the multiple sets of first connecting holes 111 are arranged vertically at intervals, the reinforcing beam 300 is provided with a set of second connecting holes 301, the second connecting holes 301 in the same set can be aligned with any set of first connecting holes 111 and a connecting bolt is inserted to connect the reinforcing beam 300 and the longitudinal beam 110. By setting the above structure, when the mounting beam 210 is in multiple different height positions, the reinforcing beam 300 can be connected to the longitudinal beam 110 through the connecting structure. The structure is simple and practical. In a further embodiment, at least one of the first connecting hole 111 and the second connecting hole 301 is configured as a vertically distributed oblong hole. In this embodiment, the second connecting hole 301 is configured as a vertically distributed oblong hole, and the first connecting hole 111 is a circular hole. On the one hand, the oblong hole structure facilitates the alignment of the first connecting hole 111 and the second connecting hole 301. On the other hand, the vertical distribution of the oblong holes allows for a wider vertical adjustment range of the mounting beam 210. Obviously, if both the first connecting hole 111 and the second connecting hole 301 are circular holes, then in order to ensure that the reinforcing beam 300 can be connected to the longitudinal beam 110, the mounting beam 210 can only be adjusted to a number of fixed height positions. The number of sets of the first connecting holes 111 limits the number of height positions that the mounting beam 210 can be adjusted to. However, by configuring at least one of the first connecting holes 111 and the second connecting hole 301 as a vertically distributed oblong hole, the vertical adjustment range of the mounting beam 210 can be widened.

[0053] Reference Figure 2 and Figure 3As shown, in some embodiments of this utility model, both mounting portions 220 are connected to guide plates 240. The guide plates 240 are provided with a first plate 241 and a second plate 242. The first plate 241 is located between the two pressing rollers 230 and is arranged perpendicular to the first direction. One end of the second plate 242 is fixed to one end of the first plate 241 along the second direction, and the other end of the second plate 242 extends to the side of the adjacent pressing roller 230 away from the first plate 241. The second plate 242 is arranged parallel to the vertical direction. The first direction, the second direction, and the vertical direction are arranged perpendicular to each other. In this embodiment, the second plate 242 is located on the side of the first plate 241 facing the material feeding direction. By setting the guide plates 240, the material on the belt can be guided to gather between the two pressing rollers 230. On the one hand, it can prevent the material from overflowing from the edge of the belt. On the other hand, it can also prevent the material from being transported to the lower side of the pressing rollers 230 and affecting the pressing and limiting effect of the pressing rollers 230 on the belt. It is conceivable that by reasonably setting the height of the guide plate 240, the guide plate 240 can also be lowered to abut against the belt, thereby assisting the pressure roller 230 in limiting the belt. In a further embodiment, a rubber plate 250 is provided on the side surface of the guide plate 240 opposite to the adjacent pressure roller 230, and the rubber plate 250 is provided to reduce the wear of the material on the guide plate 240.

[0054] Reference Figure 1 and Figure 2 As shown, in some embodiments of this utility model, the mounting frame 100 is further provided with a connecting crossbeam 130 and a support beam 140. The two ends of the connecting crossbeam 130 are respectively connected to the tops of two longitudinal beams 110 to enhance structural stability. One end of the support beam 140 is connected to the upper part of the longitudinal beam 110, and the other end is inclined downwards relative to the longitudinal beam 110. The bottom end of the support beam 140 is flush with the bottom end of the longitudinal beam 110 and can be connected to the frame of the belt conveyor, thereby improving the structural stability of the entire pressure roller device. It is understood that each of the two longitudinal beams 110 is correspondingly connected to a support beam 140.

[0055] Reference Figure 2 and Figure 4As shown, in some embodiments of this utility model, the mounting part 220 is provided with a support 221, a seated bearing 222, and a mounting shaft 223. The support 221 is connected to the lower end of the mounting beam 210. The seated bearing 222 is detachably connected to the support 221. There are two seated bearings 222, which are located on opposite sides of the support 221 along the first direction. Specifically, the seated bearings 222 can be connected to the support 221 by fasteners. The two ends of the mounting shaft 223 are rotatably mounted on the two seated bearings 222, and the rotation axis of the mounting shaft 223 is parallel to the first direction. The clamping wheel 230 is coaxially sleeved on the mounting shaft 223 and detachably connected to the mounting shaft 223. This structure allows the clamping wheel 230 to be rotatably mounted on the support 221, and facilitates easy assembly and disassembly. When the clamping wheel 230 needs to be disassembled, the seated bearing 222 can be removed from the support 221 first, separating the seated bearing 222, mounting shaft 223, and clamping wheel 230 as a whole from the support 221. Then, the seated bearing 222 can be removed from the mounting shaft 223, and finally, the clamping wheel 230 can be removed from the mounting shaft 223. In this embodiment, the clamping wheel 230 is sleeved on the mounting shaft 223 and locked to it by a locking screw. The mounting shaft 223 has a threaded hole that mates with the locking screw. The support 221 has an opening groove with an open bottom, through which the mounting shaft 223 passes, facilitating separation of the mounting shaft 223 from the support 221.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0057] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A pressure roller device, characterized in that, include: The mounting frame is provided with two vertically extending longitudinal beams, which are arranged opposite each other along a first direction, which is perpendicular to the vertical direction; The pressure roller assembly includes a mounting beam, two mounting portions, and two clamping rollers. The mounting beam is connected between two longitudinal beams and extends along the first direction. The two mounting portions are located at the lower end of the mounting beam and are arranged opposite to each other along the first direction. The two clamping rollers are respectively located at the two mounting portions and are located on the lower side of the mounting beam. The mounting part is connected to a guide plate, which has a first plate and a second plate. The first plate is located between the two pressing rollers and is arranged perpendicular to the first direction. One end of the second plate is fixed to one end of the first plate along the second direction, and the other end of the second plate extends to the side of the adjacent pressing roller away from the first plate. The first direction, the second direction, and the vertical direction are arranged perpendicular to each other.

2. The pressure roller device according to claim 1, characterized in that: A reinforcing beam connects the mounting section to the adjacent longitudinal beam, and the reinforcing beam is located on the underside of the mounting crossbeam.

3. The pressure roller device according to claim 2, characterized in that: One end of the reinforcing beam is connected to the mounting part, and the other end is detachably connected to the longitudinal beam through a connecting structure. The mounting crossbeam is vertically and vertically positioned between the two longitudinal beams, and the reinforcing beam can be detachably connected to the longitudinal beam through the connecting structure when the mounting crossbeam is at multiple different height positions.

4. The pressure roller device according to claim 3, characterized in that: A top plate is horizontally provided at the top of the longitudinal beam, and a lifting assembly is provided between the top plate and the mounting crossbeam. The lifting assembly is equipped with: An adjusting screw is vertically inserted into the top plate, and its bottom end is fixedly connected to the mounting beam. Two sets of adjusting nuts are located on the upper and lower sides of the top plate, respectively, and are threadedly connected to the adjusting screw.

5. The pressure roller device according to claim 3, characterized in that: The connecting structure is provided with connecting bolts, the longitudinal beam is provided with multiple sets of first connecting holes, the multiple sets of first connecting holes are arranged vertically at intervals, the reinforcing beam is provided with a set of second connecting holes, the second connecting holes in the same set can be aligned with any set of first connecting holes and the connecting bolts can be inserted to connect the reinforcing beam and the longitudinal beam.

6. The pressure roller device according to claim 5, characterized in that: At least one of the first connecting hole and the second connecting hole is configured as a vertically distributed waist-shaped hole.

7. The pressure roller device according to claim 1, characterized in that: A rubber plate is provided on the side surface of the guide plate opposite to the adjacent clamping roller.

8. The pressure roller device according to claim 1, characterized in that: The mounting bracket is also equipped with: A connecting beam is provided, with both ends of the connecting beam connected to the tops of the two longitudinal beams respectively; A support beam, one end of which is connected to the upper part of the longitudinal beam, and the other end is inclined downward relative to the longitudinal beam.

9. The pressure roller device according to claim 1, characterized in that: The mounting part is provided with: A support, which is connected to the lower end of the mounting beam; A mounted bearing, wherein the mounted bearing is detachably connected to the support; The mounting shaft is rotatably mounted on the bearing with a seat, and the rotation axis of the mounting shaft is parallel to the first direction; The clamping wheel is coaxially sleeved on the mounting shaft and detachably connected to the mounting shaft.

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