A speed measuring device for sintering machine trolley rollers

Abstract

The utility model discloses a kind of speed measuring devices for sintering machine trolley roller, it is related to metal smelting sintering technical field.The device includes support unit, speed measuring unit and the connecting unit for connecting support unit and speed measuring unit;The crossbeam assembly of speed measuring unit is located above roller, and one end of crossbeam assembly is equipped with first pulley, and first pulley is coaxially arranged with speed measurer;Another end is equipped with second pulley and third pulley;The distance between the outermost side of first pulley and the outermost side of third pulley is greater than the distance between the outermost side of any two adjacent rollers.The connecting unit includes connecting frame fixed on support unit and limiting block fixed on connecting frame;There is gap between limiting block and crossbeam assembly.The speed measuring device can measure the speed of sintering machine trolley roller in real time, continuously, and the accuracy is high.

Description

Technical Field

[0001] This utility model relates to the field of metal smelting and sintering technology, specifically to a speed measuring device for the rollers of a sintering machine trolley. Background Technology

[0002] Sintering machines are the main equipment used in the pretreatment of steel raw materials in the metallurgical industry, characterized by heavy loads, high temperatures, and long operating cycles. Due to the harsh working conditions, the roller bearings of the sintering machine trolley experience accelerated wear, which can severely impede equipment operation and affect safe production. Therefore, frequent lubrication of the rollers is necessary. Currently, manual lubrication is widely used for the sintering machine trolley rollers. However, because the equipment is in operation, manual lubrication of the bearings is difficult, and there is also the risk of slag falling from the trolley. Therefore, achieving online automatic lubrication of the sintering machine trolley rollers is a specialized piece of equipment for the metallurgical industry. Achieving online automatic lubrication first requires obtaining the real-time running speed of the trolley. This ensures that the lubrication gun synchronously tracks the lubrication hole during the online lubrication process; therefore, real-time speed measurement of the rollers is a necessary condition for achieving automatic roller lubrication.

[0003] Most current trolley roller oil injection systems use a speed measuring mechanism where the encoder disc is fixed to the trolley side, and the speed measuring roller drives the encoder disc to rotate for speed measurement. However, during use, the two adjacent sides may not be aligned, or different batches of trolley sides may be mismatched during maintenance. This can cause the encoder disc to not always press firmly against the trolley side, resulting in discontinuous and inaccurate speed measurement. Consequently, the synchronous movement of the oil injection gun and the oil injection hole cannot be guaranteed, affecting the accuracy of automatic oil injection.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this utility model, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a speed measuring device for the rollers of a sintering machine trolley. The technical problem to be solved by this utility model is achieved through the following technical solution: This utility model provides a speed measuring device for the rollers of a sintering machine trolley, including a support unit, a speed measuring unit, and a connecting unit for connecting the support unit and the speed measuring unit; The support unit includes a base, a first bracket disposed on the base and extending along the Z direction, and a second bracket fixedly connected to the first bracket and extending along the Y direction, wherein the Y direction is perpendicular to the Z direction; The speed measuring unit includes a crossbeam assembly, which is used to be positioned above the rollers of the sintering machine trolley. The crossbeam assembly extends along the X direction; the X direction is parallel to the direction of movement of the rollers, and the X direction is perpendicular to the Y direction and the Z direction. A first pulley is mounted on the first end of the crossbeam assembly, and the first pulley is coaxially arranged with the speed measuring device; a second pulley and a third pulley are mounted on the second end of the crossbeam assembly, the diameter of the second pulley being larger than the diameter of the third pulley; the first pulley, the second pulley, and the third pulley are all in contact with the same synchronous belt; the distance between the third pulley and the roller is smaller than the distance between the second pulley and the roller; the roller is used to move along the second end of the crossbeam assembly towards the first end of the crossbeam assembly. The connecting unit includes a connecting frame and a limiting block; the connecting frame is fixed to the second bracket, and the crossbeam assembly is rotatably connected to the connecting frame via a connecting shaft; the limiting block is fixed on the connecting frame, and there is a gap between the limiting block and the crossbeam assembly so that the roller can always be in contact with the timing belt; Along the X direction, the side closer to the connecting frame is defined as the inner side, and the side farther from the connecting frame is defined as the outer side; the distance between the outermost edge of the third pulley and the connecting frame is greater than the distance between the outermost edge of the second pulley and the connecting frame; The distance between the outermost edge of the first pulley and the outermost edge of the third pulley is greater than the distance between the outermost edges of any two adjacent rollers.

[0006] In one embodiment of this utility model, the first bracket is a telescopic bracket.

[0007] In one embodiment of the present invention, the first bracket includes a first support rod, a second support rod, a connecting sleeve sleeved on the outside of the first support rod and the second support rod, and a double-threaded screw; the first support rod is fixedly connected to the connecting sleeve, the upper end of the first support rod is provided with a first internal thread that mates with the double-threaded screw, and the lower end of the second support rod is provided with a second internal thread that mates with the double-threaded screw; The twin-thread screw includes a threaded portion at one end and a connecting portion at the other end; the threaded portion is engaged with the first internal thread and the second internal thread, and the connecting portion extends from the upper end of the second support rod to adjust the height of the first bracket by rotating the twin-thread screw to adjust the up-down movement of the second support rod.

[0008] In one embodiment of this utility model, the speed measuring device is an encoder disk.

[0009] In one embodiment of the present invention, a first pulley fixing bracket and a second pulley fixing bracket are further included. The first pulley fixing bracket is used to fix the first pulley, and the second pulley fixing bracket is used to fix the second pulley and the third pulley.

[0010] In one embodiment of the present invention, the crossbeam assembly includes a crossbar and a tensioning assembly disposed on the side of the crossbar near the first pulley, the tensioning assembly being used to tension the synchronous belt.

[0011] In one embodiment of this utility model, the crossbar has a guide groove at one end near the first pulley, and the guide groove extends along the extension direction of the crossbar; the two sides of the crossbar have symmetrically arranged guide holes, and the guide holes expose the guide groove. The tensioning assembly includes a fixed block, a first stop block, a slider, a second stop block, and a guide rod disposed in the guide groove; the fixed block, the first stop block, the slider, and the second stop block are arranged sequentially in a direction away from the first pulley; the fixed block and the second stop block are both fixedly connected to the crossbar, the first stop block is fixedly connected to the first pulley fixing frame, and the slider is fixedly connected to the first pulley fixing frame; One end of the guide rod is connected to the fixed block, and the other end is connected to the second stop block. The guide rod passes through the first stop block and the slider. A tension spring is provided on the outside of the guide rod between the slider and the second stop block. The two ends of the tension spring are connected to the slider and the second stop block, respectively.

[0012] In one embodiment of this utility model, the first stop block is fixedly connected to the first pulley's fixing frame by passing a first bolt through a first through hole, a guide hole, and a threaded hole on the first stop block. The slider is fixedly connected to the first pulley fixing frame by passing a second bolt through the second through hole on the first pulley fixing frame, the guide hole, and the threaded hole on the slider.

[0013] In one embodiment of the present invention, the second pulley fixing frame is fixedly mounted on the crossbar, the second pulley is connected to the second pulley fixing frame via a first rotating shaft, and the third pulley is connected to the second pulley fixing frame via a second rotating shaft.

[0014] In one embodiment of the present invention, a balancing component is further included, the balancing component comprising two balancing springs and two fixing frames; The two fixing frames are U-shaped frames with openings facing the crossbar, and the fixing frames are fixedly connected to the crossbar; the timing belt passes through the two fixing frames; One end of the balance spring is connected to the second bracket, and the other end of the balance spring is connected to the fixed frame. The two balance springs are symmetrically arranged on both sides of the second bracket.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The speed measuring device provided by this utility model allows the crossbeam assembly to rotate within a predetermined angle range via a limiting block on the connecting frame, ensuring that the rollers are always in contact with the timing belt. Driven by the rollers, the timing belt rotates, which in turn drives the first pulley and the speed measuring device coaxially mounted with the first pulley to rotate, achieving real-time measurement of the roller speed. Simultaneously, the distance between the outermost edges of the first and third pulleys is greater than the distance between the outermost edges of any two adjacent rollers, ensuring that at least one roller is in contact with the timing belt at any given time when using this speed measuring device for speed detection, thus achieving continuity in speed measurement.

[0016] 2. The speed measuring device provided by this utility model can be fixed to one side of the roller through a support unit, and the speed measuring unit is set above the roller, so that the synchronous belt is always in dynamic contact with at least one roller. It does not need to be fixed on the trolley, avoiding the influence of uneven trolley sides on the accuracy of speed measurement, and improving the accuracy of roller speed measurement.

[0017] 3. The speed measuring device provided by this utility model employs a tensioning structure with a tensioning spring to achieve tensioning of the synchronous belt. Furthermore, this tensioning structure is housed within the crossbar, saving space in the speed measuring device and improving its adaptability to measuring the speed of the rollers on the sintering machine trolley in complex application scenarios. The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is an application diagram of the speed measuring device for the rollers of a sintering machine trolley provided in this embodiment of the utility model; Figure 2 This is a three-dimensional schematic diagram of a speed measuring device for the rollers of a sintering machine trolley provided in an embodiment of this utility model; Figure 3A This is another perspective view of the speed measuring device for the rollers of a sintering machine trolley provided in this embodiment of the utility model; Figure 3B This is a three-dimensional schematic diagram of the balancing component of the speed measuring device for the rollers of a sintering machine trolley provided in an embodiment of this utility model; Figure 4 This is a cross-sectional schematic diagram of the speed measuring device for the rollers of a sintering machine trolley provided in this embodiment of the present invention, in which the speed measuring device is coaxially arranged with the first pulley. Figure 5This is a three-dimensional schematic diagram of the support unit in the speed measuring device for the rollers of a sintering machine trolley provided in this embodiment of the utility model; Figure 6 This is a partial cross-sectional schematic diagram of the support unit in the speed measuring device for the rollers of a sintering machine trolley provided in this embodiment of the utility model; Figure 7 This is a schematic diagram of the crossbar structure in the speed measuring device for the rollers of a sintering machine trolley provided in this embodiment of the utility model; Figure 8 This is a schematic diagram of the crossbar (partial), first pulley, and connecting unit structure in the speed measuring device for the rollers of a sintering machine trolley provided in this embodiment of the utility model. Figure 9 This is a schematic diagram of the tensioning component structure in the speed measuring device for the rollers of a sintering machine trolley provided in this embodiment of the utility model; Figure 10 This is a schematic diagram of the speed measuring unit structure in the speed measuring device for the rollers of a sintering machine trolley provided in this embodiment of the utility model.

[0019] Explanation of reference numerals in the attached figures: 100-Speed ​​measuring device; 200-Sintering machine trolley; 300-Roller; 1-Base; 2-First bracket; 21-First support rod; 22-Second support rod; 23-Connecting sleeve; 24-Double threaded screw; 3-Second bracket; 4-Connecting frame; 5-Limiting block; 6-Crossbeam assembly; 61-Crossbar; 62-Guide hole; 63-Fixing block; 64-First stop block; 65-Slider; 66-Second stop block; 67-Guide rod; 68-Tension spring; 7-First pulley; 8-Second pulley; 9-Third pulley; 10-Speed ​​measuring device; 11-First pulley fixing frame; 111-First through hole; 112-Second through hole; 12-Second pulley fixing frame; 13-Synchronous belt; 14-Balance spring; 15-Fixing frame. Detailed Implementation

[0020] To further illustrate the technical means and effects of this utility model in order to achieve its intended purpose, the following detailed description of the speed measuring device for the rollers of a sintering machine trolley, based on this utility model, is provided in conjunction with the accompanying drawings and specific embodiments.

[0021] The foregoing and other technical contents, features, and effects of this utility model will be clearly presented in the following detailed description of the specific embodiments with reference to the accompanying drawings. Through the description of the specific embodiments, a more in-depth and specific understanding can be gained of the technical means and effects adopted by this utility model to achieve the intended purpose. However, the accompanying drawings are only provided for reference and illustration and are not intended to limit the technical solution of this utility model.

[0022] It should be noted that, in this document, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Furthermore, the term “comprising” or any other variation is intended to cover non-exclusive inclusion, such that an article or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below" the second feature includes the first feature being directly below or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In this invention, along the X direction, the side closer to the connecting frame is the inner side, and the side farther from the connecting frame is the outer side; along the Z direction, the side farther from the base is the upper side, and the side closer to the base is the lower side.

[0026] This utility model provides a speed measuring device for the rollers of a sintering machine trolley, see [link to relevant documentation]. Figure 2 and Figure 3A The speed measuring device 100 includes a support unit, a speed measuring unit, and a connecting unit for connecting the support unit and the speed measuring unit. The support unit includes a base 1, a first bracket 2 disposed on the base 1 and extending along the Z direction, and a second bracket 3 fixedly connected to the first bracket 2 and extending along the Y direction, wherein the Y direction is perpendicular to the Z direction.

[0027] The speed measuring unit includes a crossbeam assembly 6, which is used to be set above the roller 300 of the sintering machine trolley 200. The crossbeam assembly 6 extends along the X direction; the X direction is parallel to the movement direction of the roller 300, and the X direction is perpendicular to the Y and Z directions.

[0028] See Figure 2 , Figure 3A and Figure 4A first pulley 7 is mounted on the first end of the crossbeam assembly 6, and the first pulley 7 is coaxially arranged with the speed measuring device 10. A second pulley 8 and a third pulley 9 are mounted on the second end of the crossbeam assembly 6. The diameter of the second pulley 8 is larger than the diameter of the third pulley 9, and the third pulley 9 does not contact the second pulley 8. The first pulley 7, the second pulley 8, and the third pulley 9 are all in contact with the same synchronous belt 13, so that the first pulley 7, the second pulley 8, and the third pulley 9 can rotate synchronously under the drive of the synchronous belt 13. The distance between the third pulley 9 and the roller 300 is less than the distance between the second pulley 8 and the roller 300. That is to say, the distance between the horizontal tangent of the lowest point of the third pulley 9 and the horizontal tangent of the highest point of the roller 300 is less than the distance between the horizontal tangent of the lowest point of the second pulley 8 and the horizontal tangent of the highest point of the roller 300; thus, compared with the second pulley 8, the third pulley 9 is closer to the roller 300. The roller 300 is used to move from the second end of the crossbeam assembly 6 to the first end of the crossbeam assembly 6. Thus, when the roller 300 runs under the speed measuring unit, it first contacts the timing belt 13 on the outer side of the third pulley 9, and then, while maintaining close contact with the timing belt 13, it runs from the second end of the crossbeam assembly 6 to the first end of the crossbeam assembly 6.

[0029] See Figure 2 and Figure 3A The connecting unit includes a connecting frame 4 and a limiting block 5. The connecting frame 4 is fixed to the second bracket 3, and the crossbeam assembly 6 is rotatably connected to the connecting frame 4 via a connecting shaft. The limiting block 5 is fixed to the connecting frame 4, and there is a gap between the limiting block 5 and the crossbeam assembly 6 so that the roller 300 can always be in contact with the synchronous belt 13, allowing the synchronous belt 13 to rotate under the drive of the roller 300, and then drive the first pulley 7, the second pulley 8, and the third pulley 9 to rotate through the synchronous belt 13. That is to say, in the static state, the extension direction of the crossbeam assembly 6 of the speed measuring device 100 for the rollers of the sintering machine trolley provided by this utility model is generally parallel to the X direction. In the use state, the crossbeam assembly 6 can rotate around the connecting shaft within a preset angle range, and within this preset angle range, the roller 300 is always in contact with the synchronous belt 13 during operation, allowing the synchronous belt 13 to rotate under the drive of the roller 300.

[0030] Along the X direction, the side closer to the connecting frame 4 is defined as the inner side, and the side farther from the connecting frame 4 is defined as the outer side. The distance between the outermost edge of the third pulley 9 and the connecting frame 4 is greater than the distance between the outermost edge of the second pulley 8 and the connecting frame 4. The distance between the outermost edge of the first pulley 7 and the outermost edge of the third pulley 9 is greater than the distance between the outermost edges of any two adjacent rollers 300. In this invention, the outermost edge refers to the outermost endpoint of a circular wheel (first pulley 7, second pulley 8, third pulley 9, or roller 300) or the tangent to the outermost endpoint.

[0031] In this embodiment, the speed measuring device 100, via the limiting block 5 on the connecting frame 4, allows the crossbeam assembly 6 to rotate within a predetermined angle range, thereby ensuring that the roller 300 is always in contact (tangential) with the synchronous belt 13. Thus, the synchronous belt 13 rotates under the drive of the roller 300, which in turn drives the first pulley 7 and the speed measuring device 10 coaxially arranged with the first pulley 7 to rotate, achieving speed measurement of the roller 300. Simultaneously, by limiting the distance between the outermost edge of the first pulley 7 and the outermost edge of the third pulley 9 to be greater than the distance between the outermost edges of any two adjacent rollers 300, at any given time, at least one roller 300 is in contact with the synchronous belt 13 during speed measurement, thereby achieving continuity of speed measurement.

[0032] like Figure 1 The diagram shows a speed measuring device 100 provided by this invention measuring the speed of the rollers 300 of a sintering machine trolley 200. The speed measuring device 100 is fixed to one side of the rollers 300 of the sintering machine trolley 200, ensuring that the synchronous belt 13 is always in dynamic contact with at least one roller 300. The speed measuring device 100 provides independent support to the speed measuring unit through a support unit, eliminating the need to fix it to the side of the trolley. This avoids the impact of unevenness of the trolley side on the accuracy of the speed measuring device 10, ensuring continuous and accurate speed measurement of the rollers 300.

[0033] The speed measuring process of the speed measuring device 100 provided in this embodiment includes: The base 1 is fixed in a predetermined position, with the speed measuring unit positioned above the roller 300. The roller 300 moves along the second end of the crossbeam assembly 6 towards the first end of the crossbeam assembly 6. At this time, the extension direction of the crossbeam assembly 6 is parallel to the X-direction.

[0034] Define the movement direction of the trolley rollers 300, from front (the direction of the rollers 300's movement) to back (the direction from which the rollers 300's movement originates), with a total of 1 to N rollers, where N is a positive integer greater than 1. The Kth roller (K≤N) of the trolley first becomes tangent to the synchronous belt 13 on the outer side of the third pulley 9 in the speed measuring device 100, lifting the third pulley 9 (at this time, the first pulley 7 sinks relative to the horizontal direction). During the movement of the Kth roller, it remains in contact with the synchronous belt 13. When the Kth roller reaches the outer side of the first pulley 7, it lifts the first pulley 7, causing the crossbeam assembly 6 to return to being parallel to the X direction. Simultaneously, the (K+1)th roller adjacent to the Kth roller becomes tangent to the synchronous belt 13 on the outer side of the third pulley 9, lifting the third pulley 9, and this cycle repeats. During the movement of roller 300, roller 300 can drive synchronous belt 13 to move. Synchronous belt 13 drives first pulley 7, second pulley 8 and third pulley 9 to rotate, which in turn drives speed measuring device 10, which is coaxially set with first pulley 7, to rotate, thereby realizing real-time speed measurement of roller 300.

[0035] In another embodiment of this utility model, see Figure 3B The speed measuring device for the rollers of the sintering machine trolley also includes a balancing assembly, which comprises two balancing springs 14 and two fixed frames 15. The two fixed frames 15 are U-shaped frames with their openings facing the crossbar 61, and are fixedly connected to the crossbar 61. The synchronous belt 13 passes through the two fixed frames 15, but does not contact them; that is, the fixed frames 15 do not affect the movement of the synchronous belt 13. One end of each balancing spring 14 is connected to the second bracket 3, and the other end is connected to the fixed frame 15. The two balancing springs 14 are symmetrically arranged on both sides of the second bracket 3. The balancing springs 14 further adjust the balance of the crossbeam assembly 6, preventing it from tipping over and ensuring the smooth operation of the speed measuring device.

[0036] In one example, see Figure 2 The limiting block 5 includes a first limiting block and a second limiting block; along the extending direction of the crossbeam assembly 6, the first limiting block and the second limiting block are respectively located on both sides of the connecting frame 4 (in Figure 3A and Figure 8 (Only one of the middle limit blocks 5 is shown).

[0037] In one example, a first pulley fixing bracket 11 and a second pulley fixing bracket 12 are also included. The first pulley fixing bracket 11 is used to fix the first pulley 7, and the second pulley fixing bracket 12 is used to fix the second pulley 8 and the third pulley 9.

[0038] In one embodiment of this utility model, the first support 2 is a telescopic support. This allows for height adjustment to accommodate different models of sintering machine trolleys 200 for speed measurement. Furthermore, after speed measurement, the height can be adjusted to disengage the synchronous belt 13 from the rollers 300; when speed measurement is needed, the height can be adjusted to bring the synchronous belt 13 into contact with the rollers 300, facilitating the start and stop control operations of the speed measuring device 100.

[0039] In one embodiment of this utility model, such as Figure 5 and Figure 6As shown, the first support 2 may include a first support rod 21, a second support rod 22, a connecting sleeve 23 sleeved on the outside of the first support rod 21 and the second support rod 22, and a twin-threaded screw 24. The first support rod 21 is fixedly connected to the connecting sleeve 23. The upper end of the first support rod 21 is provided with a first internal thread that mates with the twin-threaded screw 24, and the lower end of the second support rod 22 is provided with a second internal thread that mates with the twin-threaded screw 24. The twin-threaded screw 24 includes a threaded portion at one end and a connecting portion at the other end. The threaded portion mates with the first internal thread and the second internal thread, and the connecting portion extends from the upper end of the second support rod 22, allowing the height of the first support 2 to be adjusted by rotating the twin-threaded screw 24 to move the second support rod 22 up and down. In this embodiment, the threaded portion at one end of the twin-threaded screw 24 is connected to the first support rod 21 and the second support rod 22. The circumferential rotation of the twin-threaded screw 24 drives the second support rod 22 to move up or down. The connecting sleeve 23 is located on the outside of the first support rod 21 and the second support rod 22, and can also be used to constrain the rotation of the first support rod 21 and the second support rod 22 in the circumferential direction, thereby improving the stability of the support unit.

[0040] In one example, the base 1 has a through hole through which a fixing bolt can be inserted into the ground to secure the base 1. Exemplarily, the interior of the base 1 is a cavity to reduce the weight of the speed measuring device 100 and save materials. Exemplarily, the base can be elongated (e.g., ...). Figure 3A As shown), it can also be "U-shaped" (such as...). Figure 3B (As shown), it can also be other shapes.

[0041] In one example, the interiors of the first support rod 21 and the second support rod 22 can be hollow, further reducing the weight of the speed measuring device 100.

[0042] In one example, the speed measuring device 10 is an encoder disk.

[0043] In one embodiment of this utility model, see Figures 7-10 The crossbeam assembly 6 includes a crossbar 61 and a tensioning assembly disposed on the side of the crossbar 61 near the first pulley 7. The tensioning assembly is used to tension the synchronous belt 13, thereby ensuring the stability and reliability of the speed measuring unit's operation.

[0044] In one implementation, see Figure 7 and Figure 8 The crossbar 61 has a guide groove inside near the first pulley 7, extending along the extension direction of the crossbar 61; symmetrically arranged guide holes 62 are located on both sides of the crossbar 61, exposing the guide groove. (See also...) Figure 9The tensioning assembly includes a fixed block 63, a first stop block 64, a slider 65, a second stop block 66, and a guide rod 67, all disposed in a guide groove. The fixed block 63, first stop block 64, slider 65, and second stop block 66 are arranged sequentially in a direction away from the first pulley 7. Specifically, the first stop block 64 is located on the side of the fixed block 63 away from the first pulley 7, the slider 65 is located on the side of the first stop block 64 away from the first pulley 7, and the second stop block 66 is located on the side of the slider 65 away from the first pulley 7. Both the fixed block 63 and the second stop block 66 are fixedly connected to the crossbar 61. The first stop block 64 is fixedly connected to the first pulley fixing frame 11, and the slider 65 is fixedly connected to the first pulley fixing frame 11. One end of the guide rod 67 is connected to the fixed block 63, and the other end is connected to the second stop block 66, with the guide rod 67 passing through both the first stop block 64 and the slider 65. A tension spring 68 is provided on the outer side of the guide rod 67 between the slider 65 and the second stop 66, and the two ends of the tension spring 68 are connected to the slider 65 and the second stop 66 respectively. In this embodiment, the tension spring 68 and the slider 65 achieve automatic tensioning of the synchronous belt 13. At the same time, by providing a guide groove inside the crossbar 61, the tensioning component is placed inside the crossbar 61, saving space in the speed measuring device 100 and improving the adaptability to speed measuring the rollers 300 of the sintering machine trolley 200 in complex application scenarios.

[0045] For example, the two ends of the tension spring 68 can be fixedly connected to the slider 65 and the second stop 66, or they can abut against the slider 65 and the second stop 66, so that when the synchronous belt 13 is loose or deformed at high temperature, tension can be achieved by the action of the tension spring 68.

[0046] For example, the first stop 64 can be fixedly connected to the first pulley fixing frame 11 by passing a first bolt through the first through hole 111, the guide hole 62, and the threaded hole on the first stop 64. Figure 8 and Figure 9 As shown, only the first through hole 111 on one side of the first pulley fixing bracket 11 and the guide hole 62 on one side of the crossbar 61 are visible. On the other side, there are also symmetrically arranged first through holes 111 and guide holes 62. Thus, the first bolt passes sequentially through the first through hole 111 on one side of the first pulley fixing bracket 11, the guide hole 62 on one side of the crossbar 61, the threaded hole on the first stop block 64, the guide hole 62 on the other side of the crossbar 61, and the first through hole 111 on the other side of the first pulley fixing bracket 11.

[0047] For example, the slider 65 can be fixedly connected to the first pulley fixing frame 11 by passing a second bolt through the second through hole 112, the guide hole 62, and the threaded hole on the slider 65. Figure 8 and Figure 9As shown, only the second through hole 112 on one side of the first pulley fixing bracket 11 is shown; there are also symmetrically arranged second through holes 112 on the other side. Thus, the second bolt passes sequentially through the second through hole 112 on one side of the first pulley fixing bracket 11, the guide hole 62 on one side of the crossbar 61, the threaded hole on the slider 65, the guide hole 62 on the other side of the crossbar 61, and the second through hole 112 on the other side of the first pulley fixing bracket 11.

[0048] For example, the second pulley fixing bracket 12 is fixedly mounted on the crossbar 61, the second pulley 8 is connected to the second pulley fixing bracket 12 through the first rotating shaft, and the third pulley 9 is connected to the second pulley fixing bracket 12 through the second rotating shaft.

[0049] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A speed measuring device for rollers on a sintering machine trolley, characterized in that, It includes a support unit, a speed measuring unit, and a connecting unit for connecting the support unit and the speed measuring unit; The support unit includes a base (1), a first bracket (2) disposed on the base (1) and extending along the Z direction, and a second bracket (3) fixedly connected to the first bracket (2) and extending along the Y direction, wherein the Y direction is perpendicular to the Z direction; The speed measuring unit includes a crossbeam assembly (6), which is used to be positioned above the roller (300) of the sintering machine trolley. The crossbeam assembly (6) extends along the X direction; the X direction is parallel to the movement direction of the roller (300), and the X direction is perpendicular to the Y direction and the Z direction. A first pulley (7) is mounted on the first end of the crossbeam assembly (6), and the first pulley (7) is coaxially arranged with the speed measuring device (10); a second pulley (8) and a third pulley (9) are mounted on the second end of the crossbeam assembly (6), and the diameter of the second pulley (8) is larger than the diameter of the third pulley (9); the first pulley (7), the second pulley (8) and the third pulley (9) are all in contact with the same synchronous belt (13); the distance between the third pulley (9) and the roller (300) is smaller than the distance between the second pulley (8) and the roller (300); the roller (300) is used to move along the second end of the crossbeam assembly (6) toward the first end of the crossbeam assembly (6); The connecting unit includes a connecting frame (4) and a limiting block (5); the connecting frame (4) is fixed to the second bracket (3), and the crossbeam assembly (6) is rotatably connected to the connecting frame (4) through a connecting shaft; the limiting block (5) is fixed on the connecting frame (4), and there is a gap between the limiting block (5) and the crossbeam assembly (6) so that the roller (300) can always be in contact with the synchronous belt (13); Along the X direction, the side closer to the connecting frame (4) is defined as the inner side, and the side farther from the connecting frame (4) is defined as the outer side; the distance between the outermost edge of the third pulley (9) and the connecting frame (4) is greater than the distance between the outermost edge of the second pulley (8) and the connecting frame (4); the distance between the outermost edge of the first pulley (7) and the outermost edge of the third pulley (9) is greater than the distance between the outermost edges of any two adjacent rollers (300).

2. The speed measuring device for the rollers of a sintering machine trolley according to claim 1, characterized in that, The first bracket (2) is a telescopic bracket.

3. The speed measuring device for the rollers of a sintering machine trolley according to claim 2, characterized in that, The first bracket (2) includes a first support rod (21), a second support rod (22), a connecting sleeve (23) sleeved on the outside of the first support rod (21) and the second support rod (22), and a double-threaded screw (24); the first support rod (21) is fixedly connected to the connecting sleeve (23), the upper end of the first support rod (21) is provided with a first internal thread that mates with the double-threaded screw (24), and the lower end of the second support rod (22) is provided with a second internal thread that mates with the double-threaded screw (24); The twin-thread screw (24) includes a threaded portion at one end and a connecting portion at the other end; the threaded portion is connected to the first internal thread and the second internal thread, and the connecting portion extends from the upper end of the second support rod (22) so as to adjust the height of the first bracket (2) by adjusting the up and down movement of the second support rod (22) through the rotation of the twin-thread screw (24).

4. The speed measuring device for the rollers of a sintering machine trolley according to any one of claims 1-3, characterized in that, The speed measuring device (10) is an encoder disk.

5. The speed measuring device for the rollers of a sintering machine trolley according to claim 1, characterized in that, It also includes a first pulley fixing bracket (11) and a second pulley fixing bracket (12), the first pulley fixing bracket (11) being used to fix the first pulley (7), and the second pulley fixing bracket (12) being used to fix the second pulley (8) and the third pulley (9).

6. The speed measuring device for the rollers of a sintering machine trolley according to claim 5, characterized in that, The crossbeam assembly (6) includes a crossbar (61) and a tensioning assembly disposed on the side of the crossbar (61) near the first pulley (7), the tensioning assembly being used to tension the synchronous belt (13).

7. The speed measuring device for the rollers of a sintering machine trolley according to claim 6, characterized in that, The crossbar (61) has a guide groove at one end near the first pulley (7), and the guide groove extends along the extension direction of the crossbar (61); the two sides of the crossbar (61) have symmetrically arranged guide holes (62), and the guide holes (62) expose the guide groove. The tensioning assembly includes a fixed block (63), a first stop (64), a slider (65), a second stop (66), and a guide rod (67) disposed in the guide groove; the fixed block (63), the first stop (64), the slider (65), and the second stop (66) are arranged sequentially in a direction away from the first pulley (7); the fixed block (63) and the second stop (66) are both fixedly connected to the crossbar (61), the first stop (64) is fixedly connected to the first pulley fixing frame (11), and the slider (65) is fixedly connected to the first pulley fixing frame (11); One end of the guide rod (67) is connected to the fixed block (63), and the other end is connected to the second stop block (66). The guide rod (67) passes through the first stop block (64) and the slider (65). A tension spring (68) is provided on the outside of the guide rod (67) between the slider (65) and the second stop block (66). The two ends of the tension spring (68) are respectively connected to the slider (65) and the second stop block (66).

8. The speed measuring device for the rollers of a sintering machine trolley according to claim 7, characterized in that, The first stop (64) is fixedly connected to the first pulley fixing frame (11) by passing the first bolt through the first through hole (111) on the first pulley fixing frame (11), the guide hole (62) and the threaded hole on the first stop (64); The slider (65) is fixedly connected to the first pulley fixing frame (11) by passing a second bolt through the second through hole (112) on the first pulley fixing frame (11), the guide hole (62) and the threaded hole on the slider (65).

9. The speed measuring device for the rollers of a sintering machine trolley according to claim 8, characterized in that, The second pulley fixing frame (12) is fixedly mounted on the crossbar (61), the second pulley (8) is connected to the second pulley fixing frame (12) through the first rotating shaft, and the third pulley (9) is connected to the second pulley fixing frame (12) through the second rotating shaft.

10. The speed measuring device for the rollers of a sintering machine trolley according to claim 6, characterized in that, It also includes a balancing assembly, which comprises two balancing springs (14) and two fixing frames (15); The two fixing frames (15) are "U-shaped" frames with openings facing the crossbar (61), and the fixing frames (15) are fixedly connected to the crossbar (61); the timing belt (13) passes through the two fixing frames (15); One end of the balance spring (14) is connected to the second bracket (3), and the other end of the balance spring (14) is connected to the fixed frame (15). The two balance springs (14) are symmetrically arranged on both sides of the second bracket (3).

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