A roll speed measuring device

Abstract

The application relates to a roller speed measuring device and relates to the technical field of speed measuring instruments. The roller speed measuring device comprises a mounting seat, a connecting seat and a speed measuring instrument, a plurality of positioning rollers for abutting against the roller surface of a roller are arranged on one side of the mounting seat at intervals, and the connecting seat is located on the side of the mounting seat facing the positioning rollers; the connecting seat and the mounting seat are connected through an elastic assembly, and the elastic assembly has a tendency to push the connecting seat to move away from the side of the mounting seat; the speed measuring instrument comprises a base and a measuring roller rotatably arranged on the base; and the base is fixedly connected to the connecting seat. The roller speed measuring device solves the problems of safety and unstable gripping during speed measurement of high-speed running equipment, reduces measurement error, and has low cost.

Description

Technical Field

[0001] This application relates to the field of speed measuring instruments, and in particular to a roller speed measuring device. Background Technology

[0002] A roller is a cylindrical, rotating object in machinery. Rollers are commonly driven by a power source (such as an electric motor) to move other materials forward or to generate pressure for processing. Their applications are widespread. In battery separator slitting machines, rollers are used to feed the battery separators for slitting. Battery separator slitting requires a gradient speed increase (e.g., increasing speed by 1% to 3% per roller); however, excessive speed difference between the front and rear rollers can lead to excessive separator stretching ratio (>0.5%, affecting porosity). Therefore, precise measurement of the roller speed is necessary.

[0003] Traditional roller speed measuring devices fall into two categories: contact speed measuring instruments and non-contact speed measuring instruments. Contact speed measuring instruments involve holding the measuring roller close to the roller surface, which is dangerous on high-speed equipment. Furthermore, the non-parallelism between the measuring roller and the roller diameter often leads to unstable gripping and large measurement errors. Non-contact speed measuring instruments use reflective sheets on the roller surface to measure the number of rotations within a certain time using laser reflection. However, the accuracy of this type of speed measuring instrument is limited by the roller material and suffers from high cost and large measurement errors due to roller diameter accumulation. Non-contact speed measuring instruments (laser / encoder) are affected by the reflectivity of the roller surface material (metal / rubber coating), resulting in errors of 0.1–0.5 meters per minute. Roller diameter machining errors (±0.05 mm) accumulate in multi-roller operation, amplifying diaphragm tension fluctuations. In addition, when using the above two types of speed measuring instruments, there is a significant safety hazard when the manual handheld speed measuring instrument is operated next to the high-speed roller (400+ m / min). Utility Model Content

[0004] To improve the accuracy, reliability, and safety of roller speed measurement, this application provides a roller speed measuring device.

[0005] The roller speed measuring device provided in this application adopts the following technical solution: A roller speed measuring device includes a mounting base, a connecting base, and a speed measuring instrument. A plurality of positioning rollers for abutting against the roller surface of a roller are spaced apart on one side of the mounting base. The connecting base is located on the side of the mounting base facing the positioning rollers. The connecting base and the mounting base are connected by an elastic component, and the elastic component has a tendency to push the connecting base toward a side away from the mounting base. The speed measuring instrument includes a base and measuring rollers rotatably mounted on the base. The base is fixedly connected to the connecting base.

[0006] In use, the positioning roller rests against the roller surface of the roller, maintaining stability, and the rolling direction of the positioning roller is consistent with the rotation direction of the roller. At this time, the measuring roller of the speedometer also rests against the roller surface. Through the friction between the roller and the measuring roller, the roller drives the measuring roller to rotate, thus measuring the speed of the roller. By adopting the above technical solution, the positioning roller's contact with the roller surface ensures that the measuring roller of the speedometer is parallel to the roller and maintains stable contact. This solves the safety issues and grip instability problems when measuring speed in high-speed operating equipment, reducing measurement errors. The elastic component pushes the connecting seat to keep the measuring roller of the speedometer pressed tightly against the roller surface. By using elasticity and Hooke's law to apply a constant force, the measurement accuracy is improved, avoiding the safety risks of manual handheld speed measurement. The overall structure is simple, reducing manufacturing costs.

[0007] Optionally, the elastic component includes a guide rod and a spring; one end of the guide rod is fixed to the connecting seat, and the other end of the guide rod slides through the mounting seat and is also provided with a limiting member to prevent the guide rod from disengaging from the mounting seat; the spring is sleeved on the guide rod and the two ends of the spring act on the side of the mounting seat and the side of the connecting seat, respectively.

[0008] By adopting the above technical solution, an elastic component is formed by a guide rod and a spring. One end of the guide rod is fixed to the connecting seat, and the other end passes through the mounting seat and is equipped with a limiting component to prevent detachment. The spring is sleeved on the guide rod, and its two ends act on the sides of the mounting seat and the connecting seat respectively. This ensures that the force applied by the speed measuring instrument is constant, and the measuring roller of the speed measuring instrument remains stably and reliably against the roller surface of the roller, reducing measurement errors and improving measurement accuracy. At the same time, the roller surface pushes the speed measuring instrument upward, causing the spring to deform and reducing the damage of the speed measuring instrument to the roller.

[0009] Optionally, the mounting base has a through hole, and the elastic component further includes a linear bearing fixed at the through hole of the mounting base, the guide rod passes through the linear bearing, and the limiting member is an end cap fixed to the end of the guide rod.

[0010] By adopting the above technical solution, the guide rod slides more smoothly when passing through the mounting base, reducing friction, reducing wear, and improving guidance. The end cap, as a limiting component, can effectively prevent the guide rod from detaching from the mounting base, ensuring the normal operation of the elastic component, improving the stability and reliability of the roller speed measuring device, further ensuring that the speed measuring instrument can stably and accurately measure the roller speed, and reducing measurement errors.

[0011] Optionally, the connecting seat is in the shape of a rectangular plate, and the elastic components are in four sets and are respectively located at the four corner positions of the connecting seat.

[0012] By adopting the above technical solution, the connecting seat can be subjected to uniform force, which pushes the connecting seat to move smoothly toward the side away from the mounting seat. This allows the measuring roller of the speed measuring instrument to make more stable contact with the roller surface, improving the accuracy and stability of the measurement. It ignores the roller diameter error and material difference, avoids manual approach to the high-speed roller, reduces the measurement error, and makes the error ≤0.02m / min at 400m / min. At the same time, the cost is more than 30% lower than that of traditional laser speed measuring systems.

[0013] Optionally, the speed measuring instrument is located on the side of the connecting seat away from the mounting seat, and a fixing seat is fixedly provided at the end of the base near the measuring roller. The fixing seat is detachably fixed to the connecting seat by fixing bolts.

[0014] By adopting the above technical solution, the speed measuring instrument is set on the side of the connecting base away from the mounting base, which facilitates measurement; the fixing base is detachably fixed to the connecting base by fixing bolts, which facilitates the installation and disassembly of the speed measuring instrument and is beneficial for subsequent maintenance and replacement of the speed measuring instrument.

[0015] Optionally, the mounting base is in the shape of a rectangular plate, and mounting posts are provided at the four corners of the mounting base. One end of the mounting post is fixedly connected to the side of the mounting base, and the other end of the mounting post is fixedly connected to a positioning roller.

[0016] By adopting the above technical solution, the four positioning rollers can fit against the surface of the high-speed positioning roller, the speed measuring instrument has sufficient installation space, ensuring that the measuring rollers and the roller are parallel, improving the accuracy of the measurement results, and at the same time avoiding manual approach to the high-speed roller, thus improving operational safety.

[0017] Optionally, the end of the mounting column is provided with a mounting groove, and the positioning roller is an engineering plastic roller or an engineering plastic bearing; the positioning roller is rotatably mounted in the mounting groove via a connecting shaft.

[0018] By adopting the above technical solution, the positioning roller is set as an engineering plastic roller or an engineering plastic bearing and is rotatably mounted in the mounting groove at the end of the mounting column through the connecting shaft. This allows the positioning roller to more stably fit the high-speed running roller surface, reducing wear and interference with other external components. The result is more stable and reliable in use, and the cost is lower.

[0019] Optionally, a handle is provided on the side of the mounting base away from the positioning roller, and there are two handles respectively located at both ends of the mounting base.

[0020] By adopting the above technical solution, two handles are set at both ends of the mounting base, which makes it convenient for operators to hold the device and avoids personnel from getting close to the high-speed roller, thus improving the safety of use.

[0021] Optionally, both the mounting base and the connecting base are provided with weight reduction holes.

[0022] By adopting the above technical solution, the overall weight of the roller speed measuring device can be reduced, making it easier to operate and use, and saving costs.

[0023] Optionally, the mounting base and the connecting base are arranged parallel to each other at intervals, and the planes on which the four positioning rollers are located and the plane on which the measuring rollers are located are parallel to or coincide with each other; the measuring rollers are directly opposite the weight reduction holes on the connecting base, or the measuring rollers are partially located inside the weight reduction holes on the connecting base.

[0024] By adopting the above technical solution, the mounting base and connecting base are arranged in a reasonable manner, which enables better contact between the measuring roller and the roller surface, ensuring the accuracy and stability of the measurement. At the same time, the position setting of the weight reduction hole of the measuring roller and the connecting base makes the overall structure more compact and facilitates the measurement operation.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The roller speed measuring device in this application avoids the safety risks of manually holding a speed measuring instrument to measure speed.

[0026] 2. The positioning rollers on the mounting base in this application enable the measuring rollers and the cylinder of the speed measuring instrument to remain stably and reliably parallel, and can ignore the roller diameter error and material difference, so that the measurement results are accurate.

[0027] 3. In this application, an elastic component is used to push the connecting seat to move, so that the measuring roller of the speed measuring instrument is in close contact with the roller surface of the roller, and a constant force is applied, resulting in high measurement accuracy.

[0028] 4. In this application, an elastic component is used to form a buffer structure, which reduces the damage of the speed measuring instrument to the roller; at the same time, the overall structure is simple and reduces manufacturing costs. Attached Figure Description

[0029] Figure 1 This is a first three-dimensional structural schematic diagram of the roller speed measuring device in this application.

[0030] Figure 2 This is a second three-dimensional structural schematic diagram of the roller speed measuring device in this application.

[0031] In the picture: 10. Mounting base; 11. Through hole; 12. Weight reduction hole; 20. Connecting seat; 30. Speed ​​measuring instrument; 31. Base; 32. Measuring rollers; 33. Mounting base; 40. Positioning rollers; 50. Elastic component; 51. Guide rod; 52. Spring; 53. Limiting component; 54. Linear bearing; 60. Mounting column; 61. Mounting slot; 70. Connecting shaft; 80. Handle. Detailed Implementation

[0032] The following will be combined with the appendix Figure 1 and attached Figure 2 The technical solutions in the embodiments of this utility model are clearly and completely described herein. The described embodiments are only possible technical implementations of this utility model and not all possible implementations. Those skilled in the art can obtain other embodiments in conjunction with the embodiments of this utility model without creative effort, and these embodiments are also within the protection scope of this utility model.

[0033] Reference Figure 1 and Figure 2 As shown, the roller speed measuring device in this application includes a mounting base 10 and a connecting base 20; both the mounting base 10 and the connecting base 20 are rectangular plates, and the mounting base 10 and the connecting base 20 are arranged parallel to each other. A plurality of positioning rollers 40 for abutting against the roller surface of the roller are arranged at intervals on one side of the mounting base 10. The connecting base 20 is located on the side of the mounting base 10 facing the positioning rollers 40. The connecting base 20 and the mounting base 10 are connected by an elastic component 50, and the elastic component 50 has a tendency to push the connecting base 20 to move away from the mounting base 10.

[0034] Reference Figure 1 and Figure 2 As shown, the roller speed measuring device also includes a speed measuring instrument 30, which includes a base 31 and a measuring roller 32 rotatably mounted on the base 31; the base 31 is fixedly connected to the connecting seat 20. The specific principle and internal structure of the speed measuring instrument 30 are existing technologies and will not be described in detail here.

[0035] Reference Figure 1 and Figure 2 As shown, mounting posts 60 are provided at the four corner positions of the mounting base 10. The mounting posts 60 are typically made of metal, such as stainless steel or aluminum alloy, possessing sufficient strength and rigidity to ensure the positioning rollers 40 are stably mounted on the mounting base 10. They are generally cylindrical in shape and can be manufactured using turning, milling, or other machining processes. One end of the mounting post 60 is fixed to the side of the mounting base 10, and the other end is connected to a positioning roller 40. This provides sufficient clearance between the mounting base 10 and the roller, ensuring that the four positioning rollers 40 can conform to the surface of the high-speed roller while also providing sufficient installation space for the speedometer 30. It also ensures that the measuring roller 32 is parallel to the roller, improving the accuracy of the measurement results and preventing manual approach to the high-speed roller, thus enhancing operational safety.

[0036] Furthermore, the end of the mounting post 60 is provided with a mounting groove 61, and the positioning roller 40 is an engineering plastic rubber wheel or an engineering plastic bearing; the positioning roller 40 is rotatably mounted in the mounting groove 61 via a connecting shaft 70. The positioning roller 40 is an engineering plastic rubber wheel or an engineering plastic bearing, and engineering plastics have advantages such as self-lubrication, wear resistance, and corrosion resistance. The positioning roller 40 is rotatably mounted in the mounting groove 61 at the end of the mounting post 60 via a connecting shaft 70, which can be made of carbon steel and is connected to the positioning roller 40 and the mounting post 60 by means of interference fit or key connection, ensuring that the positioning roller 40 can rotate flexibly.

[0037] The above structural design allows the positioning roller 40 to fit against the roller surface for positioning, and the elastic component 50 to apply a constant force to the speed measuring instrument 30, so that the measuring roller 32 is in close contact with the roller surface and moves synchronously, thereby achieving stable and accurate roller speed measurement.

[0038] Reference Figure 1 and Figure 2 As shown, there are four sets of elastic components 50, distributed at the four corner positions of the connecting seat 20. This distribution ensures that the connecting seat 20 is subjected to uniform elastic force, guaranteeing the stable operation of the speed measuring instrument 30. The mounting seat 10 has a through hole 11. The elastic component 50 in this application includes a guide rod 51, a spring 52, a limiting member 53, and a linear bearing 54. The linear bearing 54 is fixed at the through hole 11 of the mounting seat 10. One end of the guide rod 51 is fixed to the connecting seat 20, and the other end slides through the linear bearing 54. The limiting member 53 is fixed at the end of the guide rod 51 that passes through the linear bearing 54. The limiting member 53 can be an end cap structure to prevent the guide rod 51 from detaching from the mounting seat 10. The spring 52 is sleeved on the guide rod 51, and its two ends act on the sides of the mounting seat 10 and the connecting seat 20, respectively. The guide rod 51 is usually made of metal, such as stainless steel or carbon steel, and its surface is polished to reduce friction with the linear bearing 54. Spring 52 can be made of carbon steel or alloy steel, and the appropriate specification should be selected according to the required elastic force and deformation. Linear bearing 54 can ensure the linear movement of guide rod 51 and reduce wobbling and deviation during movement.

[0039] Reference Figure 1 and Figure 2 As shown, in this embodiment, the speed measuring instrument 30 is set on the side of the connecting seat 20 away from the mounting seat 10. The base 31 is fixedly provided with a fixing seat 33 at one end near the measuring roller 32. The fixing seat 33 is detachably fixed to the connecting seat 20 by fixing bolts. This facilitates the installation and disassembly of the speed measuring instrument 30 and is beneficial for subsequent maintenance and replacement of the speed measuring instrument 30.

[0040] Reference Figure 1 and Figure 2As shown, a handle 80 is provided on the side of the mounting base 10 away from the positioning roller 40. There are two handles 80, located at both ends of the mounting base 10. The handles 80 are generally made of rubber or plastic, and the surface may be designed with anti-slip textures for easy gripping by the operator. The handles 80 are fixed to the mounting base 10 by bolts or welding, allowing the operator to hold the device to make the positioning roller 40 fit against the roller surface; at the same time, it avoids manual approach to the high-speed roller, improving safety during use.

[0041] In this application, both the mounting base 10 and the connecting base 20 are provided with weight reduction holes 12; the shape of the weight reduction holes 12 can be circular, square, etc., and the number of weight reduction holes 12 can be two or three. Providing weight reduction holes 12 can not only reduce the weight of the device and facilitate operation, but also save material costs to a certain extent.

[0042] In this embodiment, the planes on which the four positioning rollers 40 are located and the plane on which the measuring roller 32 is located are parallel or coincident. Preferably, the four positioning rollers 40 are arranged in a rectangular array. The two positioning rollers 40 located at one end of the mounting base 10 are located on the first plane, the two positioning rollers 40 located at the other end of the mounting base 10 are located on the second plane, and the measuring roller 32 is located on the third plane. The first, second, and third planes are parallel to each other, and the third plane is located between the first and second planes. In this application, the measuring roller 32 is directly opposite the weight reduction hole 12 on the connecting base 20, or the measuring roller 32 is partially located within the weight reduction hole 12 on the connecting base 20. This makes the mounting base 10 and the connecting base 20 reasonably arranged, enabling better contact between the measuring roller 32 and the roller surface, ensuring the accuracy and stability of the measurement. At the same time, the weight reduction hole 12 on the connecting base 20 forms a clearance space, allowing the measuring roller 32 to be partially accommodated within the weight reduction hole 12 on the connecting base 20, making the overall structure more compact and facilitating measurement operations.

[0043] The implementation principle is as follows: When using the roller speed measuring device of this application, the operator holds the handle 80, allowing the positioning roller 40 on the mounting base 10 to abut against the roller surface of the roller, maintaining stability, and the rolling direction of the positioning roller 40 is consistent with the rotation direction of the roller. At this time, the measuring roller 32 of the speed measuring instrument 30 also abuts against the roller surface of the roller. Through the friction between the roller and the measuring roller 32, the roller drives the measuring roller 32 to rotate, thus measuring the rotational speed of the roller. The positioning roller 40's contact with the roller surface allows the measuring roller 32 of the speed measuring instrument 30 to be parallel to the roller and maintain stable contact. This solves the safety problem and grip instability problem when measuring speed of high-speed running equipment, reducing measurement errors. The elastic component 50 pushes the connecting base 20 to make the measuring roller 32 of the speed measuring instrument 30 press tightly against the roller surface, applying a constant force using elasticity and Hooke's law, improving measurement accuracy, avoiding the safety risks of manual hand-held speed measurement, and simplifying the overall structure, thus reducing manufacturing costs.

[0044] The structure in this embodiment allows the connecting seat 20 to be subjected to uniform force, pushing the connecting seat 20 to move smoothly toward the side away from the mounting seat 10. This allows the measuring roller 32 of the speed measuring instrument 30 to contact the roller surface more stably, improving the accuracy and stability of the measurement. It ignores roller diameter errors and material differences, avoids manual approach to the high-speed roller, reduces measurement errors, and makes the error ≤0.02 m / min at 400 m / min. At the same time, the cost is more than 30% lower than that of traditional laser speed measuring systems.

[0045] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A roll speed measuring device, characterized by, The roller speed measuring device includes a mounting base (10), a connecting base (20), and a speed measuring instrument (30). A plurality of positioning rollers (40) for abutting against the roller surface of the roller are arranged at intervals on one side of the mounting base (10). The connecting base (20) is located on the side of the mounting base (10) facing the positioning rollers (40). The connecting base (20) is connected to the mounting base (10) by an elastic component (50), and the elastic component (50) has a tendency to push the connecting base (20) to move away from the mounting base (10). The speed measuring instrument (30) includes a base (31) and a measuring roller (32) rotatably arranged on the base (31). The base (31) is fixedly connected to the connecting base (20).

2. The roll speed measuring device of claim 1, wherein The elastic component (50) includes a guide rod (51) and a spring (52); one end of the guide rod (51) is fixed to the connecting seat (20), and the other end of the guide rod (51) slides through the mounting seat (10) and is also provided with a limiting member (53) to prevent the guide rod (51) from disengaging from the mounting seat (10); the spring (52) is sleeved on the guide rod (51) and the two ends of the spring (52) act on the side of the mounting seat (10) and the side of the connecting seat (20) respectively.

3. The roll speed measuring device of claim 2, wherein The mounting base (10) has a through hole (11), and the elastic component (50) also includes a linear bearing (54) fixed in the through hole (11) of the mounting base (10). The guide rod (51) passes through the linear bearing (54), and the limiting member (53) is an end cap fixed to the end of the guide rod (51).

4. The roll speed measuring device according to claim 1 or 2 or 3, characterized in that The connecting seat (20) is rectangular plate-shaped, and the elastic component (50) has four sets and is located at the four corner positions of the connecting seat (20).

5. The roll speed measuring device of claim 4, wherein The speed measuring instrument (30) is located on the side of the connecting seat (20) away from the mounting seat (10). The base (31) is fixedly provided with a fixing seat (33) at one end near the measuring roller (32). The fixing seat (33) is detachably fixed to the connecting seat (20) by fixing bolts.

6. The roll speed measuring device of claim 4, wherein The mounting base (10) is rectangular plate-shaped. Mounting posts (60) are provided at the four corners of the mounting base (10). One end of the mounting post (60) is fixed to the side of the mounting base (10), and the other end of the mounting post (60) is connected to a positioning roller (40).

7. The roll speed measuring device of claim 6, wherein The mounting post (60) has a mounting groove (61) at its end, and the positioning roller (40) is an engineering plastic roller or an engineering plastic bearing; the positioning roller (40) is rotatably mounted in the mounting groove (61) via a connecting shaft (70).

8. The roll speed measuring device of claim 6, wherein A handle (80) is provided on the side of the mounting base (10) away from the positioning roller (40). There are two handles (80) and they are respectively located at both ends of the mounting base (10).

9. The roll speed measuring device of claim 6, wherein Both the mounting base (10) and the connecting base (20) are provided with weight reduction holes (12).

10. The roll speed measuring device of claim 9, wherein The mounting base (10) and the connecting base (20) are arranged parallel to each other at intervals. The planes on which the four positioning rollers (40) are located and the planes on which the measuring rollers (32) are located are parallel to each other or coincide. The measuring rollers (32) are directly opposite the weight reduction holes (12) on the connecting base (20), or the measuring rollers (32) are partially located in the weight reduction holes (12) on the connecting base (20).

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