Speed measuring device for flywheel of press

Abstract

The utility model discloses a kind of flywheel speed measuring devices of press, it is related to flywheel speed measuring device field.The utility model includes flywheel, speed measuring mechanism and stabilizing mechanism, speed measuring mechanism and stabilizing mechanism form function integrated construction, both are through rotating seat, damper linkage cooperation, speed measuring mechanism includes fixed frame, sleeve, sliding bar, photoelectric sensor and probe main body, by setting the integrated construction of speed measuring mechanism and stabilizing mechanism, suspension damping support structure and horizontal inductor, the integrated construction of speed measuring mechanism and stabilizing mechanism makes both synergic cooperation more closely, the rotating seat of stabilizing mechanism is used to be fixed with fixed frame to provide support base, damper is used to buffer vibration transmitted by press, horizontal inductor is used to induct the horizontal state of photoelectric sensor to guide attitude adjustment, solve the problem that traditional device vibration easily leads to probe skew, cannot stably align flywheel hub.

Description

Technical Field

[0001] This utility model relates to the field of flywheel speed measuring devices, specifically a flywheel speed measuring device for a press. Background Technology

[0002] During the operation of a press, the speed of the flywheel is one of the key parameters that reflects the working condition of the equipment and ensures safe operation. At present, the industry generally uses photoelectric sensors to detect the speed of the flywheel. Usually, the photoelectric sensor is directly fixed to the frame of the press with a bracket, so that the sensor probe faces the flywheel hub, and the speed signal is collected in conjunction with the reflective parts on the surface of the hub.

[0003] However, due to the continuous mechanical vibration generated by the press during the stamping operation, this vibration is directly transmitted to the sensor bracket and sensor body fixed on the frame. Under long-term vibration, the sensor probe is prone to displacement and tilting, which makes it impossible for the probe to be stably aligned with the reflective part of the flywheel hub. This not only increases the error of the speed measurement data, but in severe cases, it may even cause signal loss and speed measurement failure. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a press flywheel speed measuring device to solve the technical problem that the existing press flywheel speed measuring device is affected by the transmission of vibration during the equipment's stamping operation, and the sensor probe is prone to offset or tilting and cannot be stably aligned with the flywheel hub reflective component, which leads to increased speed measurement data error, or even signal loss and speed measurement failure.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a press flywheel speed measuring device, comprising a flywheel, a speed measuring mechanism and a stabilizing mechanism, wherein the speed measuring mechanism and the stabilizing mechanism form a functionally integrated structure, and the two are linked and cooperated through a rotating seat and a damper; The speed measuring mechanism includes a fixed frame, a sleeve, a slide bar, a photoelectric sensor, and a probe body. The photoelectric sensor is located on the top of the flywheel and has a mounting groove at its bottom. The probe body is fixed to the detection end of the photoelectric sensor and is arranged facing the hub of the flywheel. The stabilizing mechanism includes a rotating seat, a damper, and a connecting shaft. The rotating seat is fixedly connected to the lower side of one side of the fixed frame. One end of the damper is rotatably engaged with the rotating seat through a rotating shaft, and the other end is rotatably connected to a bearing in the mounting groove through a connecting shaft, forming a suspension damping support structure for the photoelectric sensor. A horizontal sensor is provided on one side of the photoelectric sensor.

[0006] By adopting the above technical solution, the structure buffers vibration transmission, autonomously adjusts the probe posture, and solves the problem of probe tilting caused by vibration in traditional devices.

[0007] Furthermore, the stabilizing mechanism is made of stainless steel, and the damper is an adjustable MA-1-200 damper.

[0008] By adopting the above technical solutions, the stabilizing mechanism is made of stainless steel, which has good corrosion resistance and structural strength, and extends its service life; the damper is selected as the adjustable MA-1-200 model, which can adapt to different vibration intensities, flexibly adjust the damping effect, and ensure stable support for the photoelectric sensor.

[0009] Furthermore, a sleeve is provided on one side of the fixing frame, and a sliding rod is provided on one side of the sleeve, and the sleeve and the sliding rod are fixedly connected by a through bolt.

[0010] By adopting the above technical solution, a sleeve is installed on the upper side of one side of the fixing frame, which cooperates with the sliding rod to form an adjustable connection, and a through bolt is used for fixation. This structure facilitates the adjustment of the photoelectric sensor position according to the flywheel size, and the bolt fixing method ensures a stable connection and avoids loosening due to vibration.

[0011] Furthermore, a photoelectric sensor is screwed to the end of the slide rod via a fixing head.

[0012] By adopting the above technical solution, the photoelectric sensor is screwed to the end of the slide rod via a fixing head. The fixing head enhances the connection stability, and the screw connection method provides good detachability. This not only prevents the sensor from vibrating and falling off, but also facilitates the subsequent maintenance, calibration, or replacement of the photoelectric sensor.

[0013] Furthermore, a reflector is detachably connected to the circumferential surface of the flywheel hub. The reflector is evenly distributed along the circumference of the hub, and the reflective surface of the reflector is set upward, corresponding to the detection end of the probe body of the top photoelectric sensor.

[0014] By adopting the above technical solution, the reflector on the flywheel hub is designed to be detachable, facilitating replacement after wear; it is evenly distributed circumferentially with the reflective surface facing upwards, ensuring precise alignment with the probe body. This guarantees stable optical signal transmission, prevents reflector damage from affecting speed measurement, and improves the ease of device maintenance.

[0015] Furthermore, the fixing frame has an L-shaped structure. The vertical section of the fixing frame has mounting holes that are compatible with the fixing bolts. It can be detachably connected to the frame of the press through the fixing bolts. The horizontal section of the fixing frame extends laterally along the top of the flywheel, and the end of the horizontal section is fixedly connected to the sleeve to form a horizontal base supporting the speed measuring mechanism.

[0016] By adopting the above technical solution, the mounting bracket has an L-shaped structure. The vertical section is securely connected to the frame with fixing bolts, and the horizontal section extends to the top of the flywheel and connects to the sleeve. The L-shaped structure balances installation stability and reasonable support, providing a reliable reference for the speed measuring mechanism and improving overall stability.

[0017] Furthermore, the detection end of the probe body faces the hub reflector of the flywheel, and the outer wall of the probe body is adapted to the outer contour of the flywheel hub, and the detection end face of the probe body is relatively parallel to the reflective surface of the reflector.

[0018] By adopting the above technical solution, the probe's main detection end faces the reflector on the flywheel hub, its outer wall is adapted to the outer contour of the hub, and the detection end face is parallel to the reflective surface of the reflector. This design improves the alignment accuracy between the probe and the reflector, reduces signal deviation, and ensures accurate speed measurement data.

[0019] Furthermore, the sleeve extends horizontally, and its inner wall is provided with a transversely arranged guide groove. The outer edge of the slide rod is provided with a protrusion that matches the guide groove. The slide rod is embedded in the guide groove through the protrusion and slides laterally. The sleeve and the slide rod are locked and fixed by a through bolt, so as to realize the lateral position adjustment of the photoelectric sensor on the top of the flywheel.

[0020] By adopting the above technical solution, a guide groove is provided on the inner wall of the sleeve, and an adaptable protrusion is provided on the edge of the slide rod. After sliding adjustment, it is locked with bolts. The guide groove and the protrusion work together to improve the adjustment accuracy, and the bolt locking ensures a stable fixation, enabling precise positioning of the photoelectric sensor and adapting to different speed measurement needs.

[0021] In summary, the present invention has the following main advantages: This utility model solves the problems of vibration causing probe tilting and instability alignment with flywheel hub in traditional devices. The integrated structure of the speed measuring mechanism and the stabilizing mechanism allows for closer cooperation between the two. The rotating seat of the stabilizing mechanism is used to fix it to the fixed frame to provide a support foundation. The damper is used to buffer the vibration transmitted by the press. The connecting shaft cooperates with the bearing in the mounting slot of the photoelectric sensor to achieve suspension support. The level sensor is used to sense the horizontal state of the photoelectric sensor to guide the attitude adjustment. When the photoelectric sensor deviates, it will remind the control terminal. This solves the problem that vibration can easily cause the probe to tilt and cannot be stably aligned with the flywheel hub in traditional devices. This utility model solves the problems of inconvenient installation and maintenance, difficult sensor position adjustment, and insufficient probe alignment accuracy of traditional devices by setting an adaptive adjustment structure for the speed measuring mechanism. The L-shaped fixing frame is used to securely connect the press frame, the guide groove of the sleeve and the protrusion of the slide rod cooperate to realize the lateral position adjustment of the photoelectric sensor, and the probe body is used to adapt to the outer contour of the flywheel hub and keep parallel to the reflector. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a partial three-dimensional structural diagram of the speed measuring mechanism of this utility model; Figure 3 This utility model Figure 1 Enlarged structural diagram at point A; Figure 4 This utility model Figure 2 A magnified structural diagram at point B in the middle.

[0023] In the diagram: 1. Flywheel; 2. Speed ​​measuring mechanism; 201. Fixing frame; 202. Fixing bolt; 203. Sleeve; 204. Slide rod; 205. Photoelectric sensor; 206. Probe body; 207. Mounting slot; 3. Stabilizing mechanism; 301. Rotating seat; 302. Damper; 303. Connecting shaft; 4. Horizontal sensor; 5. Reflector. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] A press flywheel speed measuring device, such as Figure 1-4 As shown, it includes a flywheel 1, a speed measuring mechanism 2, and a stabilizing mechanism 3, with the speed measuring mechanism 2 and the stabilizing mechanism 3 forming an integrated structure; The speed measuring mechanism 2 includes a fixed frame 201, a sleeve 203, a slide bar 204, a photoelectric sensor 205, and a probe body 206. The photoelectric sensor 205 is set on the top of the flywheel 1, and a mounting groove 207 is opened at its bottom. The probe body 206 is fixed to the detection end of the photoelectric sensor 205, and the probe body 206 is arranged facing the hub of the flywheel 1. The stabilizing mechanism 3 includes a rotating seat 301, a damper 302, and a connecting shaft 303. The rotating seat 301 is fixedly connected to the lower side of one side of the fixed frame 201. One end of the damper 302 is rotatably engaged with the rotating seat 301 through a rotating shaft, and the other end is rotatably connected to the bearing in the mounting groove 207 through the connecting shaft 303, forming a suspension damping support structure for the photoelectric sensor 205. A horizontal sensor 4 is installed on one side of the photoelectric sensor 205. The integrated structure of the speed measuring mechanism 2 and the stabilizing mechanism 3 allows for a tighter fit between the two, avoiding assembly gaps that could affect stability. The fixing frame 201 and sleeve 203 of the speed measuring mechanism 2 provide a mounting base for the photoelectric sensor 205. The rotating seat 301 of the stabilizing mechanism 3 is fixed to the fixing frame 201. The damper 302, through the rotating shaft and connecting shaft 303, cooperates with the mounting slot 207 of the photoelectric sensor 205 to form a suspension support, working in conjunction with the horizontal sensor 4 to sense the attitude in real time. This design buffers vibration, autonomously fine-tunes the attitude, and solves the problems of probe tilting and speed measurement failure caused by vibration in traditional devices.

[0026] See Figure 1 , Figure 2 The stabilizing mechanism 3 is made of stainless steel, and the damper 302 is an adjustable MA-1-200 damper. The stainless steel construction of the stabilizing mechanism 3 provides corrosion resistance, allowing it to withstand oil and dust in the press's working environment. Its structural strength can withstand long-term vibration and impact, preventing deformation and damage, and extending its overall service life. The adjustable MA-1-200 damper 302, compared to a fixed damper, allows for flexible adjustment of damping parameters based on the vibration intensity under different press operating conditions. This ensures effective energy buffering in various vibration scenarios, providing stable suspension support for the photoelectric sensor 205 and maintaining the probe's posture.

[0027] See Figure 1 , Figure 2 A sleeve 203 is provided on one side of the upper part of the fixing frame 201, and a sliding rod 204 is provided on one side of the sleeve 203. The sleeve and the sliding rod 204 are fixedly connected by a through bolt. The sleeve 203 and the sliding rod 204 on one side of the fixing frame 201 form a matching structure. The position of the sliding rod 204 relative to the sleeve 203 can be adjusted to meet the speed measurement requirements of flywheels 1 of different specifications, thus improving the versatility of the device. The through bolt fixing method can tightly lock the sleeve 203 and the sliding rod 204. Compared with other connection methods, it can effectively resist the risk of loosening caused by press vibration, ensure the stable installation position of the photoelectric sensor 205, and provide a foundation for speed measurement accuracy.

[0028] See Figure 1 , Figure 4 The end of the slide rod 204 is screwed with a photoelectric sensor 205 via a fixing head. The fixing head at the end of the slide rod 204 increases the contact area with the photoelectric sensor 205, improving connection stability and reducing sensor shaking caused by vibration. Compared to fixed connections such as welding, the screw connection method offers convenient disassembly. When the photoelectric sensor 205 malfunctions and needs repair, or when its accuracy decreases and needs calibration, it can be quickly disassembled and assembled without damaging the overall structure, reducing maintenance costs while ensuring the connection is secure after installation.

[0029] See Figure 3 , Figure 4A reflector 5 is detachably connected to the circumferential surface of the flywheel 1 hub. The reflector 5 is evenly distributed along the circumference of the hub, with its reflective surface facing upwards. It corresponds to the detection end of the probe body 206 of the top photoelectric sensor 205. The reflector 5 along the circumferential surface of the flywheel 1 hub is detachably connected. When the reflector 5 experiences a decrease in reflectivity or wear due to long-term use, it can be replaced individually without replacing the entire flywheel 1, thus reducing maintenance costs. The even distribution of the reflector 5 along the circumference ensures that the light signals received by the photoelectric sensor 205 are evenly spaced, improving speed measurement accuracy. The upward-facing reflective surface, corresponding to the top probe body 206, reduces light signal propagation loss, ensures stable signal acquisition, and avoids speed measurement errors caused by reflector problems.

[0030] See Figure 1 , Figure 2 The mounting bracket 201 has an L-shaped structure. The vertical section of the mounting bracket 201 has mounting holes that mate with the fixing bolts 202, allowing for detachable connection to the press frame via the fixing bolts 202. The horizontal section of the mounting bracket 201 extends laterally along the top of the flywheel 1, and its end is fixedly connected to the sleeve 203, forming a horizontal base supporting the speed measuring mechanism 2. The L-shaped structure of the mounting bracket 201 offers structural mechanical advantages. The mounting holes in the vertical section, in conjunction with the fixing bolts 202, firmly fix the mounting bracket 201 to the press frame, resisting displacement caused by vibration. The horizontal section extends laterally along the top of the flywheel 1, and its end is fixedly connected to the sleeve 203, forming a horizontal support base, making the force on the speed measuring mechanism 2 more even. This structural design ensures the stability of the mounting bracket 201 itself and provides a precise and reliable installation reference for the speed measuring mechanism 2, preventing overall structural swaying.

[0031] See Figure 1 , Figure 2 The probe body 206 has its detection end facing the reflector 5 on the hub of the flywheel 1. The outer wall of the probe body 206 is adapted to the outer contour of the flywheel 1 hub, and the detection end face of the probe body 206 is relatively parallel to the reflective surface of the reflector 5. The alignment of the detection end of the probe body 206 with the reflector 5 on the flywheel 1 hub ensures precise alignment of the detection direction with the signal source. The adaptation of the outer wall to the outer contour of the flywheel 1 hub avoids detection angle deviation caused by the hub shape, ensuring the probe is always in a reasonable detection position. The relatively parallel alignment of the detection end face with the reflector 5 maximizes the reception of reflected signals and reduces light signal reflection deviation. This structure improves alignment accuracy from three dimensions: detection direction, position adaptation, and signal reception, reducing signal loss and deviation, and ensuring accurate speed measurement data.

[0032] See Figure 1 , Figure 2The sleeve 203 extends horizontally, and its inner wall has a transversely arranged guide groove. The outer edge of the slide rod 204 has a protrusion that matches the guide groove. The slide rod 204 is embedded in the guide groove through the protrusion and slides laterally. The sleeve 203 and the slide rod 204 are locked and fixed by a through bolt, realizing the lateral position adjustment of the photoelectric sensor 205 on the top of the flywheel 1. The sleeve 203 extends horizontally and has a transverse guide groove on its inner wall. The protrusion on the outer edge of the slide rod 204 matches the guide groove, making the slide rod 204 slide more smoothly along the sleeve 203, avoiding jamming or displacement, and improving the position adjustment accuracy. After sliding to the target position, the through bolt locks the sleeve 203 and the slide rod 204, which can effectively resist the position loosening caused by vibration. This structure realizes the precise lateral positioning of the photoelectric sensor 205 on the top of the flywheel 1, adapts to different specifications of flywheels or different speed measurement position requirements, and takes into account both adjustment flexibility and stable fixation.

[0033] The implementation principle of this embodiment is as follows: First, the basic installation and fixing of the device are completed. The fixing frame 201 is connected to the frame of the press by the mounting hole of its vertical section and the fixing bolt 202. The horizontal section of the fixing frame 201 extends laterally along the top of the flywheel 1 to provide a stable lateral support base for the speed measuring mechanism 2. The end of its horizontal section is fixedly connected to the sleeve 203 to ensure that the installation reference of the speed measuring mechanism 2 is stable. Next, the speed measuring mechanism 2 is assembled and integrated with the stabilizing mechanism 3: the slide rod 204 is embedded in the transverse guide groove on the inner wall of the sleeve 203 through the protrusion on its outer edge, so that the slide rod 204 can slide horizontally along the sleeve 203. Then, the photoelectric sensor 205 is screwed to the end of the slide rod 204 through the fixing head, so that the photoelectric sensor 205 is suspended on the top of the flywheel 1. At the same time, the rotating seat 301 of the stabilizing mechanism 3 is fixedly connected to the lower side of the fixing frame 201. One end of the damper 302 is rotatably engaged with the rotating seat 301 through the rotating shaft, and the other end is rotatably connected to the bearing in the mounting groove 207 at the bottom of the photoelectric sensor 205 through the connecting shaft 303, forming a suspension damping support structure for the photoelectric sensor 205. Then, the horizontal sensor 4 is set on one side of the photoelectric sensor 205, so that the horizontal sensor 4 and the stabilizing mechanism 3 form a linkage base. Subsequently, the assembly and position calibration of the speed measuring trigger component are completed: a reflector 5 is detachably connected to the circumferential surface of the flywheel 1 hub, and the reflector 5 is evenly distributed along the circumference of the hub, with the reflective surface of the reflector 5 facing upwards; the slide rod 204 is pushed to slide laterally along the guide groove of the sleeve 203 to adjust the lateral position of the photoelectric sensor 205, so that the probe body 206 fixed to the detection end of the photoelectric sensor 205 faces the hub direction of the flywheel 1, and ensures that the outer wall of the probe body 206 is adapted to the outer contour of the flywheel 1 hub, and the detection end face is relatively parallel to the reflective surface of the reflector 5. At this time, the sleeve 203 and the slide rod 204 are locked and fixed by the through bolt, and the position positioning of the photoelectric sensor 205 is completed. When the press is running, the flywheel 1 rotates synchronously with the press spindle. The photoelectric sensor 205 continuously receives the light signal reflected by the reflector 5 on the hub of the flywheel 1 through the probe body 206. The intermittent frequency of the light signal is converted into the rotational speed data of the flywheel 1 to realize the speed measurement function. During this process, the mechanical vibration generated by the press's stamping operation is transmitted to the fixed frame 201 through the frame. The damper 302 of the stabilizing mechanism 3 buffers the vibration energy through its own damping characteristics to prevent the vibration from being directly transmitted to the photoelectric sensor 205. At the same time, the horizontal sensor 4 senses the horizontal state of the photoelectric sensor 205 in real time. When the photoelectric sensor 205 is detected to have a posture deviation, the horizontal sensor 4 feeds back a signal to guide the damper 302 to fine-tune the posture of the photoelectric sensor 205 through the rotational cooperation between the connecting shaft 303 and the bearing in the mounting groove 207, and the rotational cooperation between the damper 302 and the rotating seat 301, so as to always maintain the alignment of the probe body 206 and the reflector 5 and ensure stable acquisition of the speed measurement signal.

[0034] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A press flywheel speed measuring device, characterized in that: It includes a flywheel (1), a speed measuring mechanism (2) and a stabilizing mechanism (3). The speed measuring mechanism (2) and the stabilizing mechanism (3) form a functionally integrated structure, and the two are linked and cooperated through a rotating seat (301) and a damper (302). The speed measuring mechanism (2) includes a fixed frame (201), a sleeve (203), a slide bar (204), a photoelectric sensor (205), and a probe body (206). The photoelectric sensor (205) is located on the top of the flywheel (1), and a mounting groove (207) is provided at its bottom. The probe body (206) is fixed to the detection end of the photoelectric sensor (205), and the probe body (206) is arranged facing the hub of the flywheel (1). The stabilizing mechanism (3) includes a rotating seat (301), a damper (302) and a connecting shaft (303). The rotating seat (301) is fixedly connected to the lower side of the fixed frame (201). One end of the damper (302) is rotatably engaged with the rotating seat (301) through a rotating shaft, and the other end is rotatably connected to the bearing in the mounting groove (207) through the connecting shaft (303), forming a suspension damping support structure for the photoelectric sensor (205). A horizontal sensor (4) is provided on one side of the photoelectric sensor (205).

2. The press flywheel speed measuring device according to claim 1, characterized in that: The stabilizing mechanism (3) is made of stainless steel, and the damper (302) is an adjustable MA-1-200.

3. The press flywheel speed measuring device according to claim 1, characterized in that: A sleeve (203) is provided on one side of the fixed frame (201), and a slide rod (204) is provided on one side of the sleeve (203). The sleeve (203) and the slide rod (204) are fixedly connected by a through bolt.

4. The press flywheel speed measuring device according to claim 1, characterized in that: A photoelectric sensor (205) is screwed to the end of the slide bar (204) via a fixing head.

5. The press flywheel speed measuring device according to claim 1, characterized in that: The flywheel (1) has a reflector (5) attached to its circumferential surface by adhesive. The reflector (5) is evenly distributed along the circumferential direction of the hub and the reflective surface of the reflector (5) is set facing upward, corresponding to the detection end of the probe body (206) of the top photoelectric sensor (205).

6. The press flywheel speed measuring device according to claim 1, characterized in that: The fixing frame (201) has an L-shaped structure. The vertical section of the fixing frame (201) has mounting holes that are compatible with the fixing bolts (202). The fixing bolts (202) are detachably connected to the frame of the press. The horizontal section of the fixing frame (201) extends laterally along the top of the flywheel (1), and the end of the horizontal section is fixedly connected to the sleeve (203) to form a horizontal base supporting the speed measuring mechanism (2).

7. The press flywheel speed measuring device according to claim 1, characterized in that: The probe body (206) has its detection end facing the hub reflector (5) of the flywheel (1), and the outer wall of the probe body (206) is adapted to the outer contour of the hub of the flywheel (1), and the detection end face of the probe body (206) is relatively parallel to the reflective surface of the reflector (5).

8. The press flywheel speed measuring device according to claim 1, characterized in that: The sleeve (203) extends horizontally, and its inner wall is provided with a guide groove arranged horizontally. The outer edge of the slide rod (204) is provided with a protrusion that matches the guide groove. The slide rod (204) is embedded in the guide groove through the protrusion and slides horizontally. The sleeve (203) and the slide rod (204) are locked and fixed by a through bolt, so as to realize the horizontal position adjustment of the photoelectric sensor (205) on the top of the flywheel (1).

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