A dust suction fan belt tensioning self-adjusting device

Abstract

The present invention discloses a dust suction fan belt tensioning self-adjusting device, which relates to the technical field of mechanical structure design. The dust suction fan belt tensioning self-adjusting device comprises a bottom platform, the upper surface of the bottom platform is fixedly connected to the dust suction fan, the right side surface of the bottom platform is fixedly connected to the dust sealing side frame, the dust suction fan and the bottom platform output shafts both extend to the interior of the dust sealing side frame, the dust suction fan and the surface of one end of the bottom platform output shaft are transmission-connected with a belt, an inspection mechanism for detecting the belt tensioning is provided inside the dust sealing side frame, a limiting mechanism for limiting the position of the motor is provided inside the dust sealing side frame, and an adjusting mechanism for adjusting the belt tensioning is provided inside the dust sealing side frame. By detecting the belt tensioning in real time, it is possible to timely detect whether the belt is loose or too tight, and automatically adjust the tensioning, thereby avoiding equipment failure caused by loose or too tight belts and improving the reliability of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical structure design, in particular to a dust suction fan belt tensioning self-adjusting device. Background Art

[0002] During the operation of the dust suction fan, the belt tension is crucial to the normal operation of the fan. Appropriate belt tension can ensure good contact between the belt and the drive wheel, thereby transmitting sufficient power and ensuring the efficient operation of the fan. Due to the influence of various factors, the belt tension will change. The traditional belt tensioning adjustment method usually requires manual intervention, regular inspection and adjustment of the belt tension. This method is not only time-consuming and labor-intensive, but also difficult to ensure the accuracy and timeliness of the adjustment. Manual adjustment also has human errors, resulting in the belt tension being too tight or too loose, affecting the performance and life of the fan. In order to solve these problems, people began to research and develop dust suction fan belt tensioning self-adjusting equipment. This equipment can monitor the belt tension and automatically adjust the position of the tensioning wheel as needed to maintain the appropriate belt tension.

[0003] There are still many inconveniences in the use of current equipment;

[0004] The specific defects are as follows:

[0005] First, during the operation of the dust suction fan, the belt will gradually loosen due to long-term use, resulting in a decrease in the friction between the belt and the pulley, thereby affecting the normal operation of the dust suction fan. The existing method is to detect the belt tension and disassemble the dust suction fan transmission device to check the belt tension. This process is cumbersome and labor-intensive, and long downtime will affect production efficiency. In addition, manual inspection is easily affected by the work arrangements and work efficiency of the inspectors, resulting in untimely inspection and potential safety hazards.

[0006] Secondly, the belt tensioning self-adjusting device detects the belt tension and automatically adjusts the position of the tensioning pulley according to the detection results, thereby keeping the belt tension within an appropriate range. However, the belt tension will be affected by many factors, such as the material, length, width, thickness, load, etc. of the belt. Therefore, the belt tensioning self-adjusting device uses the belt tensioning detection results to push the tensioning pulley position for a one-time adjustment, which is prone to misjudgment or improper adjustment, resulting in excessive tension or relaxation of the belt, thereby increasing belt wear.

[0007] Therefore, the present invention proposes a dust suction fan belt tensioning self-adjusting device to make up for and improve the shortcomings of the prior art. Summary of the Invention

[0008] (1) Technical problems solved

[0009] In response to the shortcomings of the existing technology, the present invention provides a dust suction fan belt tensioning self-adjusting device, which solves the problems proposed in the above background technology that the belt tensioning detection method is cumbersome, resulting in low working efficiency of the dust suction fan and improper adjustment of the tensioning wheel position during one-time adjustment.

[0010] (2) Technical solution

[0011] To achieve the above objectives, the present invention is implemented through the following technical solutions: a dust suction fan belt tensioning self-adjusting device, including a bottom platform, the upper surface of the bottom platform is fixedly connected to the dust suction fan, the right side surface of the bottom platform is fixedly connected to the dust sealing side frame, the bottom platform surface is slidably connected to the placement platform, the upper surface of the bottom platform placement platform is fixedly connected to the motor, the dust suction fan and the bottom platform output shaft both extend to the interior of the dust sealing side frame, the dust suction fan and one end surface of the bottom platform output shaft are transmission-connected with a belt, the interior of the dust sealing side frame is provided with an inspection mechanism for detecting the belt tension, the interior of the dust sealing side frame is provided with a limit mechanism for limiting the motor position, and the interior of the dust sealing side frame is provided with an adjustment mechanism for adjusting the belt tension.

[0012] Preferably, the inspection mechanism includes a power push rod, which is slidably connected to the inside of the dust-sealing side frame, and the power push rod is slidably connected to a contact push rod inside the power push rod, and the surface of the contact push rod is fixedly connected to a contact push shaft, and the power push rod is fixedly connected to a No. 1 spring inside, and the No. 1 spring and the contact push rod are fixedly connected, and the dust-sealing side frame is fixedly connected to a No. 2 spring, and the surface of the power push rod is fixedly connected to a lower pressure block, and the power push rod lower pressure block is fixedly connected to the No. 2 spring, and the dust-sealing side frame is slidably connected to a No. 1 push shaft, and the inner part of the No. 1 push shaft is fixedly connected. The part is fixedly connected with a No. 5 spring, the interior of the No. 1 push shaft is slidably connected with a power push shaft, the power push shaft and the No. 5 spring are fixedly connected, the surface of the power push shaft is fixedly connected with a positioning round block, the interior of the dust-sealing side frame is fixedly connected with a No. 4 spring, the No. 4 spring is fixedly connected to the lower surface of the positioning round block, the surface of the No. 1 push shaft is fixedly connected with an adjusting push rod, the adjusting push rod and the No. 1 push shaft are both L-shaped, the interior of the dust-sealing side frame is slidably connected with a positioning push shaft, the interior of the dust-sealing side frame is fixedly connected with a No. 3 spring, and the No. 3 spring is fixedly connected to the positioning push shaft.

[0013] Preferably, the horizontal portion of the No. 1 push shaft is located inside the sliding path of the contact push rod, and the contact push shaft is located above the belt.

[0014] Preferably, an adjustment groove is provided on the surface of the positioning push shaft, the adjustment push rod extends into the adjustment groove of the positioning push shaft, and one end of the positioning push shaft is set as an inclined surface.

[0015] The locking mechanism is configured to lock the locking mechanism, wherein the locking mechanism comprises a locking plate, wherein the locking plate is secured on a pivotal position to the bottom of the platform and is secured to a position within the locking mechanism. The locking plate is adapted to lock the locking mechanism. The locking plate is adapted to lock the locking mechanism.

[0016] Preferably, the length of the limit block extending to the inner portion of the gap between the adjacent tooth blocks on the surface of the sliding tooth plate is less than the sliding distance of the limit block.

[0017] Preferably, the adjusting mechanism includes a side adjusting plate, the side adjusting plate is slidably connected to the inside of the dust-sealing side frame, a power groove is provided on the surface of the side adjusting plate, one end of the lower pressure shaft extends to the inside of the power groove on the surface of the side adjusting plate, one side of the side adjusting plate is fixedly connected to a connecting push plate, the surface of the connecting push plate is fixedly connected to a rebound dial block, the inside of the dust-sealing side frame is fixedly connected to a No. 7 spring, the No. 7 spring is fixedly connected to the connecting push plate, the upper surface of the connecting push plate is fixedly connected to the rebound dial block, and the upper surface of the connecting push plate is rotatably connected The rotating block is fixedly connected to the upper surface of the connecting push plate with a fixed card shaft, the internal rotation of the dust-sealing side frame is connected to the No. 1 gear and the No. 2 gear, and a center connecting shaft is fixedly connected between the No. 1 gear and the No. 2 gear, and the No. 2 gear is meshed with the tooth block on the surface of the sliding tooth plate, and the center connecting shaft and the rotating block are in the same horizontal plane, and the internal sliding connection of the dust-sealing side frame is connected to a limiting inclined block, and the interior of the dust-sealing side frame is fixedly connected to a No. 8 spring, and the No. 8 spring is fixedly connected to the limiting inclined block, and the limiting inclined block extends to the inside of the tooth groove on the surface of the No. 1 gear.

[0018] Preferably, the tooth groove on the surface of the fixed clamping shaft is located inside the sliding path of the rotating clamping block.

[0019] Preferably, the rebound block and the fixed clamping shaft are both located inside the rotation path of the rotating clamping block.

[0020] (3) Beneficial effects

[0021] The dust suction fan belt tensioning and self-adjusting device provided by the present invention has the following beneficial effects:

[0022] 1. By cooperating with the inspection mechanism and the belt, the belt can be inspected by pushing the power push rod, and power is provided to the motor output shaft position adjustment mechanism to adjust the belt tension. This solves the problem of low working efficiency of the dust suction fan caused by the cumbersome belt tension detection method. By detecting the belt tension in real time, it is possible to detect whether the belt is loose or too tight in time and automatically adjust the tension, thereby avoiding equipment failure caused by loose or too tight belts, improving equipment reliability, reducing the time for dust suction fan shutdown inspection, and improving the working efficiency of the dust suction fan.

[0023] 2. By cooperating with the inspection mechanism and the limit mechanism, the limit block is driven to disengage from the gap between the adjacent tooth blocks on the surface of the sliding tooth plate, thereby releasing the restriction on the position of the motor output shaft. The limit state of the motor output shaft position is controlled by the result of the belt tightness detection. The motor output shaft position is controlled by the limit mechanism to maintain appropriate belt tension, thereby reducing belt slippage and jumping, thereby improving transmission efficiency. The motor output shaft position remains stable under the restriction of the limit mechanism, thereby ensuring the stability of the belt surface tension, thereby avoiding the belt being in a tensioned or loose state all the time, thereby extending the service life of the belt.

[0024] 3. Through the coordinated use of the inspection mechanism and the adjustment mechanism, when the belt tension is too loose, the power push shaft slides downward, driving the downward pressure shaft to slide downward. By rotating the block, the position of the motor output shaft is gradually adjusted multiple times to avoid excessive adjustment of the belt tension. Through small-range adjustments, the motor output shaft is ensured to be in the appropriate position, ensuring that the belt tension is within the appropriate range. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 Schematic diagram of the internal structure of the present invention;

[0027] Figure 3 This is a distribution diagram of the internal mechanism position relationship of the present invention;

[0028] Figure 4 This is a schematic diagram of the overall structure of the inspection mechanism of the present invention;

[0029] Figure 5 For the present invention Figure 4 A partial enlarged view of middle A;

[0030] Figure 6 Schematic diagram of the overall structure of the limiting mechanism of the present invention;

[0031] Figure 7 For the present invention Figure 6 A partial enlarged view of middle B;

[0032] Figure 8 Schematic diagram of the overall structure of the adjustment mechanism of the present invention;

[0033] Figure 9 For the present invention Figure 8 A partial enlarged view of center C;

[0034] Figure 10 Schematic diagram of the internal structure of the regulating mechanism of the present invention;

[0035] Figure 11 It is a schematic diagram of the side structure of the adjustment mechanism of the present invention;

[0036] Figure 12 For the present invention Figure 11 A partial enlarged view of D in the middle.

[0037] The numbers in the figure represent:

[0038] 1. Bottom platform; 2. Dust suction fan; 3. Dust sealing side frame;

[0039] 4. Inspection mechanism; 411. Power push rod; 412. Contact push rod; 413. Spring No. 1; 414. Spring No. 2; 415. Contact push shaft; 416. Push shaft No. 1; 417. Adjustment push rod; 418. Spring No. 3; 419. Positioning push shaft; 4110. Power push shaft; 4111. Spring No. 4; 4112. Positioning block; 4113. Spring No. 5;

[0040] 5. Limiting mechanism; 511. Sliding tooth plate; 512. Limiting block; 513. Spring No. 6; 514. Pressing shaft; 515. Adjusting shaft; 516. Pressing push rod;

[0041] 6. Adjustment mechanism; 611. Side adjustment plate; 612. Connecting push plate; 613. Spring No. 7; 614. Rebound dial block; 615. Rotating clamp block; 616. Fixed clamp shaft; 617. Limiting bevel block; 618. Spring No. 8; 619. Gear No. 1; 6110. Center connecting shaft; 6111. Gear No. 2. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] refer to Figures 1 to 12, a dust suction fan belt tensioning self-adjusting device according to a preferred embodiment of the present invention will be described in detail below, a dust suction fan belt tensioning self-adjusting device includes a bottom platform 1, the upper surface of the bottom platform 1 is fixedly connected to the dust suction fan 2, the right side surface of the bottom platform 1 is fixedly connected to the dust sealing side frame 3, the upper surface of the bottom platform 1 is slidably connected to the placement platform, the upper surface of the placement platform of the bottom platform 1 is fixedly connected to the motor, the dust suction fan 2 and the output shafts of the bottom platform 1 both extend to the interior of the dust sealing side frame 3, the dust suction fan 2 and the surface of one end of the output shaft of the bottom platform 1 are transmission-connected with a belt, the interior of the dust sealing side frame 3 is provided with an inspection mechanism 4 for detecting the belt tension, the interior of the dust sealing side frame 3 is provided with a limit mechanism 5 for limiting the position of the motor, and the interior of the dust sealing side frame 3 is provided with an adjustment mechanism 6 for adjusting the belt tension.

[0044] like Figure 3 、 Figure 4 and Figure 5 As shown, Figure 3 In the embodiment, the inspection mechanism 4 includes a power push rod 411, which is slidably connected to the inside of the dust-sealing side frame 3, and the power push rod 411 is slidably connected to the inside of the dust-sealing side frame 3, and the power push rod 411 is slidably connected to the contact push rod 412, and the surface of the contact push rod 412 is fixedly connected to the contact push shaft 415, and the power push rod 411 is fixedly connected to the inside of the spring 413, and the No. 1 spring 413 and the contact push rod 412 are fixedly connected, and the dust-sealing side frame 3 is fixedly connected to the No. 2 spring 414, and the surface of the power push rod 411 is fixedly connected to a downward pressure block, and the power push rod 411 downward pressure block is fixedly connected to the No. 2 spring 414, and the contact push shaft 415 is located above the belt, and the power push rod 411 is manually pressed to slide downward, and the No. 1 spring 413 inside the power push rod 411 pushes the contact push rod 412 to slide downward, and then the contact push shaft 415 on the surface of the contact push rod 412 gives the belt surface a downward thrust, as shown in FIG. Figure 5In the embodiment, the interior of the dust sealing side frame 3 is connected to the No. 1 push shaft 416 in a sliding manner, the interior of the No. 1 push shaft 416 is fixedly connected to the No. 5 spring 4113, the interior of the No. 1 push shaft 416 is connected to the power push shaft 4110 in a sliding manner, the power push shaft 4110 is fixedly connected to the No. 5 spring 4113, the surface of the power push shaft 4110 is fixedly connected to the positioning round block 4112, the interior of the dust sealing side frame 3 is fixedly connected to the No. 4 spring 4111, the No. 4 spring 4111 is fixedly connected to the lower surface of the positioning round block 4112, the surface of the No. 1 push shaft 416 is fixedly connected to the adjustment push rod 417, the adjustment The joint push rod 417 and the No. 1 push shaft 416 are both L-shaped, and the dust sealing side frame 3 is slidably connected to the internal sliding connection of the positioning push shaft 419, and the dust sealing side frame 3 is fixedly connected to the internal connection of the No. 3 spring 418. The No. 3 spring 418 is fixedly connected to the positioning push shaft 419, and the surface of the positioning push shaft 419 is provided with an adjustment groove. The adjustment push rod 417 extends into the adjustment groove of the positioning push shaft 419, and one end of the positioning push shaft 419 is set as an inclined surface. As the contact push shaft 415 slides downward with the belt, the contact push rod 412 contacts the upper surface of the No. 1 push shaft 416 and pushes the No. 1 push shaft 416 to The first push shaft 416 slides downward and gives the power push shaft 4110 a downward thrust through the internal No. 5 spring 4113. Since the power push shaft 4110 cannot slide down due to the restriction of the positioning round block 4112 by the positioning push shaft 419, the first push shaft 416 slides on the surface of the power push shaft 4110 under the push of the contact push rod 412. The No. 5 spring 4113 is compressed under the push of the No. 1 push shaft 416. When the belt tension is too loose, the sliding process of the contact push rod 412 drives the adjusting push rod 417 to slide down synchronously, and then extends to the inside of the positioning push shaft 419 and contacts the The inner wall of the adjustment groove inside the positioning push shaft 419 fits, thereby giving a thrust to the inclined surface of the adjustment groove of the positioning push shaft 419, thereby pushing the positioning push shaft 419 to slide to the left. At this time, the No. 3 spring 418 is compressed under the push of the positioning push shaft 419, and the positioning push shaft 419 slides to the left and disengages from the sliding path of the positioning circle 4112. The positioning circle 4112 loses the restriction of the positioning push shaft 419, and the No. 5 spring 4113 recovers and pushes the power push shaft 4110 to slide downward, thereby providing power for the limiting mechanism 5, adjusting the position of the motor output shaft, and thereby adjusting the tension.

[0045] like Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown, Figure 8 In the embodiment, the limiting mechanism 5 includes a sliding tooth plate 511, which is fixedly connected to the surface of the bottom platform 1 and placed on the side of the platform. Figure 7The inner sliding connection of the dust sealing side frame 3 is connected to the limit block 512, and the surface of the sliding tooth plate 511 is fixedly connected with a plurality of tooth blocks. The limit block 512 extends to the inside of the gap between the adjacent tooth blocks on the surface of the sliding tooth plate 511, and the surface of the limit block 512 is provided with an inclined groove. The inner sliding connection of the dust sealing side frame 3 is connected to a downward push rod 516, which extends to the inside of the limit block 512. The lower surface of the downward push rod 516 is fixedly connected to an adjusting shaft 515, and the adjusting shaft 515 is slidably connected to the inside of the inclined groove on the surface of the limit block 512. The inner part of the dust sealing side frame 3 is fixedly connected to a No. 6 spring 513, and the No. 6 spring 513 is fixedly connected to the limit block 512. The lower surface of the power push shaft 4110 is fixedly connected to the downward push shaft 514 The downward push rod 516 is located inside the sliding path of the downward pressure shaft 514, and the power push shaft 4110 slides downward, thereby driving the downward pressure shaft 514 to slide downward. One end of the downward pressure shaft 514 contacts the upper surface of the downward push rod 516, and the downward push rod 516 slides downward under the push of the downward pressure shaft 514, and the adjusting shaft 515 at the bottom end of the downward push rod 516 gives a downward push to the inner wall of the inclined groove on the surface of the limit block 512, and then the limit block 512 is pushed to the right by giving the thrust of the inclined groove of the adjusting shaft 515. The No. 6 spring 513 is compressed under the push of the limit block 512 until it drives the limit block 512 to disengage from the gap between the adjacent tooth blocks on the surface of the sliding tooth plate 511, thereby releasing the limit of the motor output shaft position.

[0046] like Figure 9 、 Figure 10 、 Figure 11 and Figure 12 In, such as Figure 9 In the embodiment, the adjusting mechanism 6 includes a side adjusting plate 611, which is slidably connected to the inside of the dust-sealing side frame 3. A power groove is provided on the surface of the side adjusting plate 611, and one end of the lower pressure shaft 514 extends to the inside of the power groove on the surface of the side adjusting plate 611. A connecting push plate 612 is fixedly connected to one side of the side adjusting plate 611. When the belt tension is too loose, the power push shaft 4110 slides downward to drive the lower pressure shaft 514 to slide downward, and the lower pressure shaft 514 slides in the power groove on the surface of the side adjusting plate 611, thereby pushing the side adjusting plate 611 to slide to the right, thereby driving the connecting push plate 612 to slide to the right. Figure 10In the middle, the surface of the connecting push plate 612 is fixedly connected with a rebound block 614, the interior of the dust sealing side frame 3 is fixedly connected with a No. 7 spring 613, the No. 7 spring 613 and the connecting push plate 612 are fixedly connected, the upper surface of the connecting push plate 612 is fixedly connected with a rebound block 614, the upper surface of the connecting push plate 612 is rotatably connected with a rotating block 615, the upper surface of the connecting push plate 612 is fixedly connected with a fixed card shaft 616, the interior of the dust sealing side frame 3 is rotatably connected with a No. 1 gear 619 and a No. 2 gear 6111. The connecting push plate 612 drives the rotating block 615 to slide to the right, and the No. 7 spring 613 is compressed under the push of the connecting push plate 612. The connecting push plate 612 slides to the right and drives the rotating block 615 to slide to the right and then extends to the inside of the tooth groove of the No. 1 gear 619 and fits with the inner wall of the tooth groove of the No. 1 gear 619. The rotating block 615 cannot rotate under the restriction of the fixed card shaft 616 on the surface of the connecting push plate 612. The connecting push plate 612 slides down through the surface of the connecting push plate 615 and rotates at the No. The inner wall of the tooth groove of gear 619 slides, thereby giving the tooth block on the surface of gear 1 619 a rightward thrust, thereby pushing gear 1 619 to rotate clockwise. At the same time, the rotation of gear 1 619 gives a thrust to the inclined surface of limiting bevel 617, thereby pushing limiting bevel 617 to slide to the right. As the rotation degree of gear 1 619 increases, limiting bevel 617 is pushed out of the tooth groove of gear 1 619 by gear 1 619, and slides along the outer surface of the tooth block of gear 1 619. Spring 8 618 is compressed under the push of the limiting bevel 617. As the connecting push plate 612 continues to slide down, the rotating block 615 is separated from the tooth groove of the No. 1 gear 619. The No. 1 gear 619 loses the thrust given by the rotating block 615, and the No. 1 gear 619 stops rotating. At this time, the tooth groove of the No. 1 gear 619 is aligned with the limiting bevel 617. The limiting bevel 617 slides upward under the push of the No. 8 spring 618 and then re-enters the tooth groove on the surface of the No. 1 gear 619, thereby limiting the No. 1 gear 619. Figure 12 In the middle, the center connecting shaft 6110 is fixedly connected between the No. 1 gear 619 and the No. 2 gear 6111, the No. 2 gear 6111 is meshed with the tooth block on the surface of the sliding tooth plate 511, the center connecting shaft 6110 and the rotating block 615 are in the same horizontal plane, the internal sliding connection of the dust sealing side frame 3 is limited to the inclined block 617, and the interior of the dust sealing side frame 3 is fixedly connected with the No. 8 spring 618, the No. 8 spring 618 and the limiting inclined block 617 are fixedly connected, and the limiting inclined block 617 extends to the inside of the tooth groove on the surface of the No. 1 gear 619. The No. 1 gear 619 rotates under the tossing of the rotating block 615, and the No. 2 gear 6111 and the No. 1 gear 619 are driven to rotate synchronously through the center connecting shaft 6110, thereby pushing the sliding tooth plate 511 to slide to the right, thereby driving the motor output shaft to slide to the right, and then making a small range adjustment to the position of the motor output shaft.

[0047] The following is the entire working process and working principle of the above embodiment:

[0048] Initially: the locking round block 4112 is located above the locking push shaft 419, the No. 5 spring 4113 and the No. 4 spring 4111 are in an uncompressed state, the adjusting shaft 515 is located inside the upper end of the adjusting slot of the limiting block 512, one end of the downward pressing shaft 514 is located above the downward pressing push rod 516, one end of the downward pressing shaft 514 is located inside the upper end of the power slot of the side adjustment plate 611, and the limiting bevel block 617 is located inside the tooth groove on the surface of the No. 1 gear 619.

[0049] During operation: When checking the belt tension, the power push rod 411 is manually pressed to slide downward, and the No. 1 spring 413 inside the power push rod 411 pushes the contact push rod 412 to slide downward, and then the contact push shaft 415 on the surface of the contact push rod 412 gives the belt surface a downward thrust. As the contact push shaft 415 slides downward with the belt, the contact push rod 412 contacts the upper surface of the No. 1 push shaft 416 and pushes the No. 1 push shaft 416 to slide downward. The No. 1 push shaft 416 slides downward through the internal No. 5 spring 4113 gives the power push shaft 4110 a downward thrust. Since the power push shaft 4110 cannot slide down due to the restriction of the positioning round block 4112 by the positioning push shaft 419, the No. 1 push shaft 416 slides on the surface of the power push shaft 4110 under the push of the contact push rod 412. The No. 5 spring 4113 is compressed under the push of the No. 1 push shaft 416. When the belt tension is too loose, the sliding process of the contact push rod 412 drives the adjusting push rod 417 to slide down synchronously, and then extends to the inside of the positioning push shaft 419 and the inside of the positioning push shaft 419. The inner wall of the adjusting groove fits in, thereby giving a thrust to the inclined surface of the adjusting groove of the positioning push shaft 419, thereby pushing the positioning push shaft 419 to slide to the left. At this time, the No. 3 spring 418 is compressed under the push of the positioning push shaft 419, and the positioning push shaft 419 slides to the left and disengages from the sliding path of the positioning round block 4112. The positioning round block 4112 loses the restriction of the positioning push shaft 419, and the No. 5 spring 4113 recovers and pushes the power push shaft 4110 to slide downward, thereby providing power to the limit mechanism 5, thereby adjusting the position of the motor output shaft. The dynamic power push rod 411 can detect the belt and provide power to the motor output shaft position adjustment mechanism, thereby adjusting the belt tension, solving the problem of low working efficiency of the dust suction fan 2 caused by the cumbersome belt tension detection method. By detecting the belt tension in real time, it is possible to detect whether the belt is loose or too tight in time and automatically adjust the tension, thereby avoiding equipment failure caused by loose or too tight belt, improving equipment reliability, and reducing the time for the dust suction fan 2 to be shut down for inspection, thereby improving the working efficiency of the dust suction fan 2.

[0050] The push rod 516 slides downward under the push of the lower pressure shaft 514, and the adjusting shaft 515 at the bottom end of the lower pressure rod 516 gives a downward push to the inner wall of the inclined groove on the surface of the limit block 512, and then the limit block 512 is pushed to the right by the thrust of the inclined groove of the adjusting shaft 515. The No. 6 spring 513 is compressed under the push of the limit block 512 until it drives the limit block 512 to slide to the right. Block 512 disengages from the gap between adjacent tooth blocks on the surface of the sliding tooth plate 511, thereby releasing the restriction on the position of the motor output shaft, and controlling the limit state of the motor output shaft position by detecting the tightness of the belt. The motor output shaft position is controlled by the limiting mechanism 5 so as to maintain appropriate tension on the belt, thereby reducing the slippage and jumping of the belt, thereby improving the transmission efficiency, and the position of the motor output shaft remains stable under the restriction of the limiting mechanism 5, thereby ensuring the stability of the belt surface tension, thereby avoiding the belt being in a tensioned or loose state all the time, thereby extending the service life of the belt.

[0051] Furthermore, when the belt tension is too loose, the power push shaft 4110 slides downward, driving the lower pressure shaft 514 to slide downward, and the lower pressure shaft 514 slides in the power groove on the surface of the side adjustment plate 611, thereby pushing the side adjustment plate 611 to slide to the right, and then driving the rotating block 615 to slide to the right through the connecting push plate 612. The No. 7 spring 613 is compressed under the push of the connecting push plate 612, and the connecting push plate 612 slides to the right and drives the rotating block 615 to slide to the right and then extends to the inside of the tooth groove of the No. 1 gear 619 and fits with the inner wall of the tooth groove of the No. 1 gear 619, while the rotating block 615 cannot rotate under the restriction of the fixed card shaft 616 on the surface of the connecting push plate 612, and the connecting push plate 612 slides down through the connecting push plate 612. The surface rotating block 615 slides on the inner wall of the tooth groove of the No. 1 gear 619, thereby giving the surface tooth block of the No. 1 gear 619 a rightward thrust, thereby pushing the No. 1 gear 619 to rotate clockwise. At the same time, the No. 1 gear 619 rotates by giving the inclined surface of the limiting bevel 617 a thrust, thereby pushing the limiting bevel 617 to slide to the right. As the rotation degree of the No. 1 gear 619 increases, the limiting bevel 617 is disengaged from the inside of the tooth groove of the No. 1 gear 619 under the push of the No. 1 gear 619, and slides along the outer surface of the tooth block of the No. 1 gear 619. The No. 8 spring 618 is compressed under the push of the limiting bevel 617. As the connecting push plate 612 continues to slide down, the rotating block 615 is disengaged from the inside of the tooth groove of the No. 1 gear 619, and the No. 1 gear 61 9 loses the thrust given by the rotating block 615, and the No. 1 gear 619 stops rotating. At this time, the tooth groove of the No. 1 gear 619 is aligned with the limiting bevel 617. The limiting bevel 617 slides upward under the push of the No. 8 spring 618 and re-enters the inside of the tooth groove on the surface of the No. 1 gear 619, thereby limiting the No. 1 gear 619. At the same time, the No. 1 gear 619 rotates under the toggle of the rotating block 615, and drives the No. 2 gear 6111 and the No. 1 gear 619 to rotate synchronously through the central connecting shaft 6110, thereby pushing the sliding tooth plate 511 to slide to the right, thereby driving the motor output shaft to slide to the right, and then adjusting the position of the motor output shaft in a small range. When the sliding tooth plate 511 is completed, the power push rod 41 is manually released. 1, the power push rod 411 slides upward, the connecting push plate 612 slides to the left, the rotating block 615 contacts the surface of the tooth block on the surface of the No. 1 gear 619, and the rotating block 615 rotates counterclockwise on the surface of the connecting push plate 612 under the restriction of the No. 1 gear 619. The rebound block 614 is retracted under the push of the rotating block 615. As the rotating block 615 continues to slide to the left, the rotating block 615 is located on the left side of the No. 1 gear 619. At this time, the rotating block 615 is separated from the surface of the tooth block of the No. 1 gear 619, and the rotating block 615 loses the restriction of the No. 1 gear 619. The rebound block 614 recovers and then pushes the rotating block 615 to rotate clockwise on the surface of the connecting push plate 612 until it fits with the surface of the lower fixed card shaft 616.By rotating the clamp block 615, the position of the motor output shaft is adjusted multiple times step by step, thereby avoiding excessive adjustment of the belt tension. By adjusting the motor output shaft in a small range, the position of the motor output shaft is ensured to be in the appropriate position, ensuring that the belt tension is within the appropriate range.

[0052] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A dust suction fan belt tensioning self-adjusting device, comprising a bottom platform (1), a dust suction fan (2) is fixedly connected to the upper surface of the bottom platform (1), a dust sealing side frame (3) is fixedly connected to the right side surface of the bottom platform (1), a placement platform is slidably connected to the surface of the bottom platform (1), a motor is fixedly connected to the upper surface of the placement platform of the bottom platform (1), the output shafts of the dust suction fan (2) and the bottom platform (1) both extend to the inside of the dust sealing side frame (3), and a belt is connected to the surface of one end of the output shaft of the dust suction fan (2) and the bottom platform (1), and the device is characterized in that: An inspection mechanism (4) for detecting belt tension is provided inside the dust-sealing side frame (3), a limiting mechanism (5) for limiting the position of the motor is provided inside the dust-sealing side frame (3), and an adjustment mechanism (6) for adjusting belt tension is provided inside the dust-sealing side frame (3); The inspection mechanism (4) includes a power push rod (411), the power push rod (411) is slidably connected to the inside of the dust-sealing side frame (3), the power push rod (411) is slidably connected to the inside of the contact push rod (412), the surface of the contact push rod (412) is fixedly connected to the contact push shaft (415), the power push rod (411) is fixedly connected to the inside of a spring (413), the spring (413) is fixedly connected to the contact push rod (412), the dust-sealing side frame (3) is fixedly connected to the inside of a spring (414), the surface of the power push rod (411) is fixedly connected to a lower pressure block, the lower pressure block of the power push rod (411) is fixedly connected to the spring (414), the dust-sealing side frame (3) is slidably connected to the No. 1 push shaft (416), the No. 1 push shaft (416) is fixedly connected to the No. 5 spring (4113), the interior of the No. 1 push shaft (416) is slidably connected to a power push shaft (4110), the power push shaft (4110) is fixedly connected to the No. 5 spring (4113), the surface of the power push shaft (4110) is fixedly connected to a positioning round block (4112), the interior of the dust sealing side frame (3) is fixedly connected to a No. 4 spring (4111), the No. 4 spring (4111) is fixedly connected to the lower surface of the positioning round block (4112), the surface of the No. 1 push shaft (416) is fixedly connected to an adjusting push rod (417), the adjusting push rod (417) and the No. 1 push shaft (416) are both L-shaped, the interior of the dust sealing side frame (3) is slidably connected to a positioning push shaft (419), the interior of the dust sealing side frame (3) is fixedly connected to a No. 3 spring (418), the No. 3 spring (418) and the positioning push shaft (419) are fixedly connected; The horizontal portion of the first push shaft (416) is located inside the sliding path of the contact push rod (412), and the contact push shaft (415) is located above the belt; An adjustment groove is provided on the surface of the positioning push shaft (419), and the adjustment push rod (417) extends into the adjustment groove of the positioning push shaft (419). One end of the positioning push shaft (419) is provided as an inclined surface.

2. The dust suction fan belt tensioning self-adjusting device according to claim 1, characterized in that: The limiting mechanism (5) includes a sliding tooth plate (511), the sliding tooth plate (511) is fixedly connected to the side of the bottom platform (1) and placed on the platform surface, the dust sealing side frame (3) is internally slidably connected to a limiting block (512), the surface of the sliding tooth plate (511) is fixedly connected to a plurality of tooth blocks, the limiting block (512) extends to the inside of the gap between adjacent tooth blocks on the surface of the sliding tooth plate (511), the surface of the limiting block (512) is provided with an inclined groove, the dust sealing side frame (3) is internally slidably connected to a downward push rod (516), the downward push rod (516) ) extends to the inside of the limit block (512), the lower surface of the push rod (516) is fixedly connected to the adjusting shaft (515), and the adjusting shaft (515) is slidably connected to the inside of the inclined groove on the surface of the limit block (512), the inside of the dust-sealing side frame (3) is fixedly connected to the sixth spring (513), and the sixth spring (513) is fixedly connected to the limit block (512), the lower surface of the power push shaft (4110) is fixedly connected to the downward pressure shaft (514), and the downward pressure rod (516) is located inside the sliding path of the downward pressure shaft (514).

3. The dust suction fan belt tensioning self-adjusting device according to claim 2, characterized in that: The length of the limit block (512) extending to the inner portion of the gap between adjacent tooth blocks on the surface of the sliding tooth plate (511) is less than the sliding distance of the limit block (512).

4. The dust suction fan belt tensioning self-adjusting device according to claim 2, characterized in that: The regulating mechanism (6) includes a side adjusting plate (611), the side adjusting plate (611) is slidably connected to the inside of the dust-sealing side frame (3), a power groove is provided on the surface of the side adjusting plate (611), one end of the downward pressing shaft (514) extends to the inside of the power groove on the surface of the side adjusting plate (611), one side of the side adjusting plate (611) is fixedly connected to a connecting push plate (612), the surface of the connecting push plate (612) is fixedly connected to a rebound block (614), the inside of the dust-sealing side frame (3) is fixedly connected to a No. 7 spring (613), the No. 7 spring (613) and the connecting push plate (612) are fixedly connected, the upper surface of the connecting push plate (612) is fixedly connected to a rebound block (614), the upper surface of the connecting push plate (612) is rotatably connected to a rotating block (615), the The upper surface of the connecting push plate (612) is fixedly connected with a fixed clamping shaft (616), the internal rotation of the dust-sealing side frame (3) is connected to the No. 1 gear (619) and the No. 2 gear (6111), the No. 1 gear (619) and the No. 2 gear (6111) are fixedly connected with a central connecting shaft (6110), the No. 2 gear (6111) is meshed with the surface tooth block of the sliding tooth plate (511), the central connecting shaft (6110) and the rotating clamping block (615) are in the same horizontal plane, the internal sliding connection of the dust-sealing side frame (3) is connected to a limiting inclined block (617), the internal fixed connection of the dust-sealing side frame (3) is connected to a No. 8 spring (618), the No. 8 spring (618) is fixedly connected to the limiting inclined block (617), and the limiting inclined block (617) extends to the inside of the tooth groove on the surface of the No. 1 gear (619).

5. The dust suction fan belt tensioning self-adjusting device according to claim 4, characterized in that: The tooth grooves on the surface of the fixed clamping shaft (616) are located inside the sliding path of the rotating clamping block (615).

6. The dust suction fan belt tensioning self-adjusting device according to claim 4, characterized in that: The rebounding block (614) and the fixed clamping shaft (616) are both located inside the rotation path of the rotating clamping block (615).

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