Automatic compensation device for the extension of a drive belt

Abstract

The present application relates to the technical field of belt tensioning, and particularly relates to a transmission belt extension automatic compensation device, which comprises a fixing seat, a toothed belt is arranged above the fixing seat, two limiting wheels are arranged in sliding contact on the toothed belt, a belt automatic compensation mechanism is fixedly connected to the fixing seat, a transposition frame is fixedly connected to the fixing seat, a tooth groove processing seat is arranged in sliding fit on the transposition frame, a tooth groove processing mechanism is arranged in sliding fit in the tooth groove processing seat, a transmission mechanism is arranged in sliding fit on one side of the tooth groove processing seat, the compensation gear which is accurately matched with the tooth groove of the toothed belt is designed, the compensation gear can be uniformly and stably engaged with the tooth groove, the toothed belt can be always maintained in a reasonable tensioning range under different working conditions, and the tooth groove processing mechanism can process the particles in the tooth groove of the toothed belt, so that the overall performance of the toothed belt transmission system can be improved, and the faults caused by the accumulation of particles or uneven tensioning force can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of belt tensioning, in particular to an automatic compensation device for the extension of a transmission belt. BACKGROUND

[0002] Automatic compensation of the extension of a transmission belt refers to the automatic adjustment of the tension and length of the belt in a belt drive system as the belt elongates or relaxes during operation, in order to maintain the stability and efficiency of the drive system. This technology is particularly suitable for toothed belts, flat belts, V-belts and other transmission belt systems, and is widely used in mechanical equipment to ensure that the belt drive can maintain good working conditions under long-term operation and load changes.

[0003] In the production process of new energy vehicles, elevators are used for lifting and handling. The stability of the transmission belt directly affects the safety and efficiency of the elevator. Since the elevator often needs to bear a large load during operation, and frequent lifting actions can cause the transmission belt to elongate or relax, the introduction of automatic compensation technology can effectively reduce the safety hazards caused by belt relaxation and improve the stability and service life of the elevator.

[0004] The prior art document with publication number CN111120599A provides an adjustable belt self-tensioning device. By using a lower guide rod and an upper guide rod to guide and limit the tensioning component, the positional accuracy of the tensioning wheel relative to the belt is improved, which helps to ensure smooth operation of the belt and prolong the service life of the belt. When the belt relaxes, the tensioning wheel moves downward under the weight of the tensioning component, continues to press on the belt to tension the belt, and at the same time the spring elongates to automatically compensate for the relaxation of the belt. The tensioning force is always maintained within a reasonable range, and the automatic tensioning process is continuous and smooth, which helps to improve the stability and reliability of the belt operation.

[0005] The prior art realizes tension compensation for flat belts, but when tensioning compensation is performed on toothed belts in elevators, the technology lacks a structure that is compatible with the shape of the toothed belt. During tensioning compensation, the tensioning wheel cannot accurately cooperate with the tooth groove, resulting in uneven tensioning force, which affects the service life of the toothed belt. At the same time, during use, particles may accumulate in the tooth groove of the toothed belt. Since the prior art does not facilitate automatic processing of the inner wall of the tooth groove of the toothed belt, the particles in the tooth groove increase the friction of the tooth groove during automatic tensioning compensation, which affects the distribution of the tensioning force of the toothed belt, making the tensioning force too high or too low and unable to be maintained within a reasonable range.

[0006] In summary, there is a lack of technology in the prior art that uses a compatible automatic maintenance and tensioning compensation structure for toothed belts. SUMMARY

[0007] The present application aims at providing a transmission belt extension automatic compensation device to solve the problems in the background art.

[0008] To achieve the above object, the present application adopts the technical scheme of a transmission belt extension automatic compensation device, comprising a fixed seat, a toothed belt is arranged above the fixed seat, two limiting wheels are arranged in sliding contact on the toothed belt, a belt automatic compensation mechanism is fixedly connected on the fixed seat, a transposition frame is fixedly connected on the fixed seat, a tooth groove processing seat is arranged in sliding fit on the transposition frame, a tooth groove processing mechanism is arranged in sliding fit in the tooth groove processing seat, and a transmission mechanism is arranged in sliding fit on one side of the tooth groove processing seat.

[0009] Preferably, a guide groove is formed in the fixed seat.

[0010] Preferably, a bending rod is rotatably connected at one end of the limiting wheel, the bending rod and the other end of the limiting wheel are both rotatably connected with a fixed frame, a sliding block is arranged in sliding fit on one of the fixed frames, and a slotted frame is fixedly connected on the sliding block.

[0011] Preferably, the belt automatic compensation mechanism comprises a compensation gear, the compensation gear is arranged in meshing transmission with the toothed belt, movable seats are rotatably connected at both ends of the compensation gear, an electric push rod is fixedly connected at the bottom of the movable seat, and the other end of the electric push rod is fixedly connected with the fixed seat.

[0012] Preferably, a lead screw is rotatably connected through the transposition frame, an electric motor is fixedly connected at one end of the lead screw, and the electric motor is fixedly connected with the transposition frame.

[0013] Preferably, a sliding seat is fixedly connected at the bottom end of the tooth groove processing seat, the sliding seat is threadedly connected with the lead screw, a cover is arranged in sliding fit on the inner wall of the opening at the top end of the tooth groove processing seat, a guide rod is fixedly connected at one end of the cover and extends to the outside through the inner wall of the tooth groove processing seat, the bottom end of the guide rod is arranged in sliding fit with the inner wall of the guide groove, and a material receiving seat is fixedly connected at the opening at the bottom end of the tooth groove processing seat through bolts.

[0014] Preferably, the tooth groove processing mechanism comprises a sliding frame, the sliding frame is arranged in through sliding fit with the inner wall of the tooth groove processing seat, a brush wheel shaft is rotatably connected on the sliding frame, bristles on the brush wheel shaft are arranged in sliding contact with the inner wall of the tooth groove on the toothed belt, a driven wheel is fixedly connected at the middle of the brush wheel shaft, a rotating sleeve is rotatably connected on the sliding frame, a driving wheel is fixedly connected at one end of the rotating sleeve, and the driving wheel is arranged in meshing transmission with the driven wheel.

[0015] Preferably, the inner wall of the rotating sleeve is slidingly matched with a rotating rod, the rotating rod is penetratingly connected with the inner wall of the gear slot processing seat, the outer end of the rotating rod is fixedly connected with a transmission wheel, and the outer end of the sliding frame is fixedly connected with an inclined groove plate.

[0016] Preferably, the transmission mechanism comprises a transmission rack, the transmission rack is meshingly and transmissionally arranged with the transmission wheel, one end of the transmission rack is fixedly connected with a sliding rod, the sliding rod is slidingly matched with the outer wall of the gear slot processing seat, the upper end of the sliding rod is fixedly connected with a spring, the other end of the spring is fixedly connected with the outer wall of the gear slot processing seat, the upper end of the transmission rack is fixedly connected with an inclined surface block, the inclined surface block is slidingly contacted with the slotted frame, one side of the transmission rack is fixedly connected with a pushing head, and the pushing head is slidingly matched with the inner wall of the inclined groove plate.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] By designing the compensation gear which is accurately matched with the gear-shaped belt gear slot, it can ensure that the compensation gear can be uniformly and stably meshed with the gear slot when tensioning the gear-shaped belt, the automatic adjustment function of the compensation gear can timely compensate the extension amount of the gear-shaped belt, and the different extension amounts of the gear-shaped belt caused by different forces can be solved, the stability and safety in the lifting process are improved, the gear-shaped belt can be maintained in a reasonable tensioning range under different working conditions, the particles in the gear slot of the gear-shaped belt can be treated by using the gear slot processing mechanism, the precision and stability of the automatic compensation process can be significantly improved when automatically compensating the extension amount of the gear-shaped belt, the overall performance of the gear-shaped belt transmission system can be improved, the faults caused by the accumulation of particles or uneven tensioning force can be reduced, the service life of the equipment can be prolonged, and the maintenance cost can be reduced.

[0019] By setting the transposition frame, the position of the gear slot processing seat can be adjusted, so that the position of the gear slot processing seat is adjusted according to the movement direction of the gear-shaped belt, so that the gear slot processing seat can be located upstream of the belt automatic compensation mechanism, and the guide groove on the fixed seat can realize that the cover on the gear slot processing seat automatically opens and closes the opening on the gear slot processing seat. When automatically compensating the extension amount of the gear-shaped belt, the position of the gear slot processing seat is adjusted by setting the transposition frame, so that it can be dynamically adjusted according to the movement direction of the gear-shaped belt, and the design of the automatically opening and closing cover can not only ensure the timeliness and accuracy of the gear slot cleaning, but also reduce manual intervention, prolong the service life of the equipment, and further improve the reliability and stability of the system.

[0020] Through the setting transmission mechanism, the limiting wheel limits the toothed belt, and the toothed belt can drive the limiting wheel to rotate, so that the limiting wheel can automatically drive the tooth groove processing mechanism to process the particles in the tooth groove of the toothed belt through the transmission mechanism, and the automatic compensation of the toothed belt extension is realized through the automatic and intelligent means, the efficient management and optimization of the toothed belt are realized, and the system operation is more stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is whole structure schematic view of the automatic compensation device for the transmission belt extension of the application;

[0022] Figure 2 It is whole structure local section view schematic view of the automatic compensation device for the transmission belt extension of the application;

[0023] Figure 3 It is fixed seat and transposition frame structure schematic view of the automatic compensation device for the transmission belt extension of the application;

[0024] Figure 4 It is limiting wheel structure schematic view of the automatic compensation device for the transmission belt extension of the application;

[0025] Figure 5 It is belt automatic compensation mechanism structure schematic view of the automatic compensation device for the transmission belt extension of the application;

[0026] Figure 6 It is tooth groove processing seat structure development schematic view of the automatic compensation device for the transmission belt extension of the application;

[0027] Figure 7 It is tooth groove processing mechanism structure schematic view of the automatic compensation device for the transmission belt extension of the application;

[0028] Figure 8 It is transmission mechanism structure schematic view of the automatic compensation device for the transmission belt extension of the application.

[0029] The diagram shows: 1. Fixed base; 2. Toothed belt; 3. Limiting pulley; 4. Automatic belt compensation mechanism; 5. Shifting frame; 6. Gear groove treatment seat; 7. Gear groove treatment mechanism; 8. Transmission mechanism; 101. Guide groove; 301. Bending rod; 302. Fixed frame; 303. Slider; 304. Slotting frame; 401. Compensating gear; 402. Moving base; 403. Electric actuator; 501. Lead screw; 50 2. Motor; 601. Slide; 602. Cover; 603. Guide rod; 604. Receiving seat; 701. Sliding frame; 702. Brush wheel shaft; 703. Driven wheel; 704. Rotating sleeve; 705. Driving wheel; 706. Rotating rod; 707. Transmission wheel; 708. Inclined groove plate; 801. Transmission rack; 802. Sliding rod; 803. Spring; 804. Inclined block; 805. Push head. Detailed Implementation

[0030] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0031] like Figures 1-8 An automatic compensation device for the extension of a transmission belt is shown, comprising a fixed base 1, a toothed belt 2 disposed above the fixed base 1, two limit wheels 3 slidably contacting the toothed belt 2, an automatic belt compensation mechanism 4 fixedly connected to the fixed base 1, a shifting frame 5 fixedly connected to the fixed base 1, a tooth groove processing seat 6 slidably fitted on the shifting frame 5, a tooth groove processing mechanism 7 slidably fitted inside the tooth groove processing seat 6, and a transmission mechanism 8 slidably fitted on one side of the tooth groove processing seat 6.

[0032] like Figure 3 As shown, a guide groove 101 is provided on the fixed base 1. The guide groove 101 has a bent structure in the middle.

[0033] like Figure 4 As shown, a bending rod 301 is rotatably connected to one end of the limiting wheel 3. A fixed frame 302 is rotatably connected to the other end of both the bending rod 301 and the limiting wheel 3. A slider 303 is slidably fitted onto one of the fixed frames 302, and a slotted frame 304 is fixedly connected to the slider 303. The inclined block 804 moves to the lower side of the slotted frame 304. When the toothed belt 2 rotates, it drives the limiting wheel 3, which is in frictional contact, to rotate. The limiting wheel 3 then drives the connected bending rod 301 to rotate. At this time, the bending rod 301 drives the slotted frame 304 connected to the slider 303 to move up and down.

[0034] like Figure 5As shown, the belt automatic compensation mechanism 4 includes a compensation gear 401, which is meshed and driven with the toothed belt 2, and a moving seat 402 rotatably connected at both ends of the compensation gear 401, and an electric push rod 403 fixedly connected at the bottom of the moving seat 402, and the other end of the electric push rod 403 is fixedly connected with the fixed seat 1.

[0035] As shown in the Figure 3 As shown, a lead screw 501 is rotatably connected through the transposition frame 5, and a motor 502 is fixedly connected at one end of the lead screw 501, and the motor 502 is fixedly connected with the transposition frame 5.

[0036] As shown in the Figure 6 As shown, a sliding seat 601 is fixedly connected at the bottom end of the tooth groove processing seat 6, and the sliding seat 601 is threadedly connected with the lead screw 501, and a cover 602 is slidingly fitted on the inner wall of the opening at the top end of the tooth groove processing seat 6, and a guide rod 603 is fixedly connected at one end of the cover 602 and extends to the outside through the inner wall of the tooth groove processing seat 6, and the guide rod 603 is slidingly fitted with the inner wall of the guide groove 101 at the bottom end, and a material receiving seat 604 is fixedly connected at the opening at the bottom end of the tooth groove processing seat 6 by bolts. Under the action of the guide groove 101 on the fixed seat 1, the cover 602 connected with the guide rod 603 will be automatically opened.

[0037] As shown in the Figure 7 As shown, the tooth groove processing mechanism 7 includes a sliding frame 701, which is slidingly fitted with the inner wall of the tooth groove processing seat 6, and a brush wheel shaft 702 is rotatably connected on the sliding frame 701, and the bristles on the brush wheel shaft 702 are slidingly contacted with the inner wall of the tooth groove on the toothed belt 2, and a driven wheel 703 is fixedly connected at the middle of the brush wheel shaft 702, and a rotating sleeve 704 is rotatably connected on the sliding frame 701, and a driving wheel 705 is fixedly connected at one end of the rotating sleeve 704, and the driving wheel 705 is meshed and driven with the driven wheel 703.

[0038] A rotating rod 706 is slidingly fitted on the inner wall of the rotating sleeve 704, and the rotating rod 706 is rotatably connected through the inner wall of the tooth groove processing seat 6, and a transmission wheel 707 is fixedly connected at the outer end of the rotating rod 706, and an inclined groove plate 708 is fixedly connected at the outer end of the sliding frame 701. The rotating rod 706 can drive the driving wheel 705 connected with the rotating sleeve 704 to rotate, so that the driving wheel 705 drives the brush wheel shaft 702 connected with the driven wheel 703 to rotate in both directions, and the transmission rack 801 moving up and down will slide on the inner wall of the inclined groove plate 708 through the connecting push head 805, thereby driving the sliding frame 701 connected with the inclined groove plate 708 to reciprocate.

[0039] By designing a compensation gear 401 that precisely matches the tooth groove of the toothed belt 2, it can be ensured that the compensation gear 401 can uniformly and stably engage with the tooth groove when tensioning the toothed belt 2, and the automatic adjustment function of the compensation gear 401 can timely compensate for the extension of the toothed belt 2, ensuring that the toothed belt 2 always maintains within a reasonable tension range under different working conditions. At the same time, using the tooth groove processing mechanism 7, the particulate matter in the tooth groove of the toothed belt 2 can be processed, which can significantly improve the precision and stability of the automatic compensation process when automatically compensating for the extension of the toothed belt 2. Not only can it improve the overall performance of the toothed belt 2 transmission system and reduce faults caused by particulate matter accumulation or uneven tension, but also can prolong the service life of the equipment and reduce maintenance costs.

[0040] As shown in Figure 8 The transmission mechanism 8 includes a transmission rack 801, which is engaged and driven with the transmission wheel 707. One end of the transmission rack 801 is fixedly connected with a sliding rod 802, which is slidingly connected with the outer wall of the tooth groove processing seat 6. The upper end of the sliding rod 802 is fixedly connected with a spring 803, and the other end of the spring 803 is fixedly connected with the outer wall of the tooth groove processing seat 6. The upper end of the transmission rack 801 is fixedly connected with an inclined block 804, which is slidingly connected with the slotted frame 304. The transmission rack 801 is fixedly connected with a push head 805 on one side, which is slidingly connected with the inner wall of the inclined slot plate 708. The inclined block 804 can smoothly move to the lower side of the slotted frame 304. The slotted frame 304 can press down the inclined block 804, and then under the action of the spring 803, it can drive the sliding rod 802 to move up and down, thereby driving the connected transmission rack 801 to move up and down. At this time, the transmission rack 801 can drive the rotating rod 706 connected with the transmission wheel 707 to reverse.

[0041] Working principle: when it is necessary to automatically compensate for the extension of the toothed belt 2, first adjust the position of the tooth groove processing seat 6 according to the movement direction of the toothed belt 2, drive the lead screw 501 to rotate by the motor 502, so that the lead screw 501 can drive the tooth groove processing seat 6 connected with the sliding seat 601 to move from the middle position of the fixed seat 1 to both sides. At this time, under the action of the guide groove 101 on the fixed seat 1, the guide rod 603 connected with the cover 602 will automatically open, so that the top opening of the tooth groove processing seat 6 can be sleeved on the toothed belt 2;

[0042] Then the inclined block 804 will move to the lower side of the slotted frame 304, and then when the toothed belt 2 rotates, it will drive the frictionally contacted limit wheel 3 to rotate, and then the limit wheel 3 will drive the connected bent rod 301 to rotate, at this time the bent rod 301 will drive the slotted frame 304 connected with the sliding block 303 to move up and down;

[0043] At this time, the slot frame 304 can press down the bevel block 804, and then under the action of the spring 803, the sliding rod 802 can move up and down, thereby driving the connected transmission rack 801 to move up and down, at this time, the transmission rack 801 can drive the rotating rod 706 connected with the transmission wheel 707 to rotate forward and reverse;

[0044] Then the rotating rod 706 can drive the driving wheel 705 connected with the rotating sleeve 704 to rotate, so that the driving wheel 705 drives the brush wheel shaft 702 connected with the driven wheel 703 to rotate forward and reverse, and the transmission rack 801 moving up and down will slide in the inner wall of the inclined groove plate 708 through the connected push head 805, thereby driving the sliding frame 701 connected with the inclined groove plate 708 to reciprocate, so that the brush wheel shaft 702 rotates to reciprocate to clean the particles in the tooth groove of the toothed belt 2.

[0045] Then according to the detected compensation data of the toothed belt 2, the compensation gear 401 on the moving seat 402 is driven by the electric push rod 403 to automatically compensate and tension the toothed belt 2.

[0046] It should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0047] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A device for automatic compensation of the extension of a drive belt, comprising a fixed seat (1), characterized in that: The fixed seat (1) is provided with a toothed belt (2) above, two limiting wheels (3) are slidably arranged on the toothed belt (2), a belt automatic compensation mechanism (4) is fixedly connected on the fixed seat (1), a transposition frame (5) is fixedly connected on the fixed seat (1), a gear slot processing seat (6) is slidably arranged on the transposition frame (5), a gear slot processing mechanism (7) is slidably arranged in the gear slot processing seat (6), and a transmission mechanism (8) is slidably arranged on one side of the gear slot processing seat (6). One end of the limiting wheel (3) is rotatably connected with a bent rod (301), the bent rod (301) and the other end of the limiting wheel (3) are rotatably connected with a fixed frame (302), one of the fixed frames (302) is slidably connected with a sliding block (303), and the sliding block (303) is fixedly connected with a slotted frame (304). The gear slot processing mechanism (7) comprises a sliding frame (701), the sliding frame (701) is slidably arranged in the inner wall of the gear slot processing seat (6), a brush wheel shaft (702) is rotatably connected to the sliding frame (701), bristles on the brush wheel shaft (702) are slidably arranged in the inner wall of the gear slot on the toothed belt (2), a driven wheel (703) is fixedly connected to the middle of the brush wheel shaft (702), a rotating sleeve (704) is rotatably connected to the sliding frame (701), a driving wheel (705) is fixedly connected to one end of the rotating sleeve (704), and the driving wheel (705) is in meshing transmission with the driven wheel (703). The inner wall of the rotating sleeve (704) is slidably connected with a rotating rod (706), the rotating rod (706) is rotatably connected with the inner wall of the gear slot processing seat (6), a transmission wheel (707) is fixedly connected to the outer end of the rotating rod (706), and an inclined groove plate (708) is fixedly connected to the outer end of the sliding frame (701). The transmission mechanism (8) comprises a transmission rack (801), the transmission rack (801) is in meshing transmission with the transmission wheel (707), a sliding rod (802) is fixedly connected to one end of the transmission rack (801), the sliding rod (802) is slidably arranged on the outer wall of the gear slot processing seat (6), a spring (803) is fixedly connected to the upper end of the sliding rod (802), the other end of the spring (803) is fixedly connected to the outer wall of the gear slot processing seat (6), an inclined surface block (804) is fixedly connected to the upper end of the transmission rack (801), the inclined surface block (804) is in sliding contact with the slotted frame (304), a pushing head (805) is fixedly connected to one side of the transmission rack (801), and the pushing head (805) is slidably arranged in the inner wall of the inclined groove plate (708).

2. A device for automatic compensation of the stretch of a drive belt according to claim 1, characterized in that: A guide groove (101) is formed in the fixed seat (1).

3. The automatic compensation device for the stretch of a drive belt according to claim 1, characterized in that: The automatic belt compensation mechanism (4) comprises a compensation gear (401) which is arranged in meshing transmission with the toothed belt (2), and the compensation gear (401) is rotatably connected with a moving seat (402) at both ends, the moving seat (402) is fixedly connected with an electric push rod (403) at the bottom, and the other end of the electric push rod (403) is fixedly connected with the fixed seat (1).

4. The automatic compensation device for the stretch of a drive belt according to claim 2, characterized in that: The transposition frame (5) is rotatably connected with a lead screw (501) penetrating through the transposition frame (5), one end of the lead screw (501) is fixedly connected with a motor (502), and the motor (502) is fixedly connected with the transposition frame (5).

5. A device for automatic compensation of the stretch of a drive belt according to claim 4, characterized in that: The tooth groove processing seat (6) is fixedly connected with a sliding seat (601) at the bottom, the sliding seat (601) is threadedly connected with the lead screw (501), the inner wall of the opening at the top of the tooth groove processing seat (6) is slidably connected with a cover (602), one end of the cover (602) extends to the outside through the inner wall of the tooth groove processing seat (6) and is fixedly connected with a guide rod (603), the bottom end of the guide rod (603) is slidably connected with the inner wall of the guide groove (101), and the bottom end of the tooth groove processing seat (6) is fixedly connected with a material receiving seat (604) through bolts.

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