Damper brake device for belt conveyors

Abstract

The utility model relates to a kind of damping brake devices for belt conveyor, involve the field of conveyor brake, it includes gantry, lifting mechanism and brake mechanism, lifting mechanism includes telescopic component and guide component, telescopic component includes telescopic cylinder and is used to lift and lower brake mechanism lifting plate, the fixed end of telescopic cylinder is arranged on gantry, the bottom end of lifting plate is slidably arranged on gantry, one side of lifting plate is inclined support surface, lifting plate and telescopic rod of telescopic cylinder are relatively fixedly connected, guide component includes guide rod, guide rod is slidably arranged on gantry;Brake mechanism includes damping plate, one end of guide rod is fixedly connected with the bottom surface of damping plate, the bottom end of damping plate is provided with support part, damping plate is slidably arranged on lifting plate by support part.The utility model improves the overall stress layout in the process of braking by the optimization of structure, reduces the influence of the working condition environment of arrangement on brake device, improves the reliability and life of brake device.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of conveyor brake, especially a damping brake device for belt conveyor. BACKGROUND

[0002] At present, the common braking modes of the downward belt conveyor in China are electric, hydraulic and hydraulic power. The gravity of the conveyed material of the downward belt conveyor causes the downward sliding force of the upper branch conveyor belt, especially in the case of large inclination angle and long conveying distance, the downward sliding force will be much greater than the running resistance of the conveyor belt, so that the driving motor runs in the state of generating electricity. When the parking brake is applied, the excessive downward sliding force will act on the brake completely, which will cause the temperature of the brake disc to rise, and even cause the brake failure and the runaway accident.

[0003] At present, the Chinese utility model patent with publication number CN210236174U and publication date April 3, 2020 proposes a downward belt conveyor damping auxiliary brake device, which comprises a control device and a damping plate device. The damping plate device comprises a base fixedly arranged on the longitudinal beam of the conveyor, a damping lining plate located below the rubber belt is fixedly arranged on the base through a support leg, and a plurality of strip-shaped damping plates along the transportation direction are fixedly arranged on the upper surface of the damping lining plate. A lifting support is further arranged below the damping lining plate, the upper end of the lifting support is connected with a support connecting piece fixedly arranged at the center of the damping lining plate through a connecting pin, and the lower end is connected with a lifting roller placed on the base through a pin shaft. The damping plate device further comprises a roller limiting stop arranged on the base, so that the included angle between the lifting support and the movement direction of the rubber belt is less than 90 degrees. The control device comprises a damping brake device control box and a hydraulic telescopic cylinder, and the lifting roller is connected with the piston rod of the hydraulic telescopic cylinder through a traction chain. In use, the lifting roller is rotated by pulling the traction chain with the hydraulic telescopic cylinder, the lifting support is swung, and then the damping lining plate is lifted, so that the damping lining plate is in contact with the rubber belt, and the braking is completed. This damping brake is normally open type, and damping brake is applied only after receiving the parking instruction, so it cannot complete reliable braking after power failure.

[0004] The Chinese utility model patent application with publication number CN208278816U and publication date December 25, 2018 discloses a downward rubber belt damping brake device, which comprises a damping plate, an oil cylinder and a spring damping plate symmetrically arranged below the damping plate, and the two ends of the spring damping plate are inclined from inside to outside. The piston rod of the oil cylinder is connected with the damping plate and drives the damping plate to descend, and the spring is in a compressed state. The upper end of the spring is connected with the damping plate and pushes the damping plate to ascend. The thrust of the piston rod of the oil cylinder and the braking force are perpendicular in this damping brake mode. When arranged obliquely, the piston rod is quickly damaged by the bending moment seal caused by the braking impact, and the braking force is also uncontrollable and unadjustable, so the application range is limited.

[0005] In the related technology, the belt is in an inclined transportation condition due to the influence of the terrain environment in the transportation environment of the belt. In the above technical solution, after braking, when the transportation is resumed, the belt may be inclined, the angle deviation between the supporting leg and the retracted supporting leg under the gravity may cause retraction difficulty, the braking force may not be timely canceled, the braking accuracy may be affected, effective braking may not be achieved, or over-braking may occur, and the brake and the belt may be damaged. Utility model content

[0006] In order to improve the control accuracy of the damping and improve the reliability of the braking, the utility model provides a damping brake device for a belt conveyor.

[0007] The utility model provides a damping brake device for a belt conveyor adopts the following technical scheme:

[0008] A damping brake device for a belt conveyor, including rack, lifting mechanism and brake mechanism, the lifting mechanism includes telescopic assembly and guide assembly, the telescopic assembly includes telescopic cylinder and is used for the lifting plate that brake mechanism is lifted, the fixed end of telescopic cylinder is arranged on the rack, the bottom end of lifting plate is arranged on the rack and slides, one side of lifting plate is inclined support surface, the telescopic rod of lifting plate and telescopic cylinder is opposite fixed connection, the guide assembly includes guide rod, the guide rod is arranged on the rack and slides,

[0009] The brake mechanism includes damping plate, one end of the guide rod is fixedly connected with the bottom surface of the damping plate, the bottom end of the damping plate is provided with a support part, and the damping plate is slidably arranged on the lifting plate through the support part.

[0010] By adopting the above technical scheme, when the belt needs to be braked, the telescopic cylinder is controlled to extend and retract, the lifting plate is driven to slide on the rack, and due to the inclined support surface at the upper end of the lifting plate, the damping plate slides on the lifting plate through the support part. Under the guidance of the guide rod, the damping plate completes the lifting and retraction process, so that the damping plate can stably contact the belt and apply a braking force in various working conditions, and the retraction and lifting of the damping plate can be stably realized, the influence of the arrangement working condition environment on the brake device is reduced, and the braking effect is improved.

[0011] Optionally, the support part includes a mounting rod and a support wheel, the mounting rod is arranged on the bottom surface of the damping plate, the support wheel is mounted at the bottom end of the mounting rod, and the mounting rod is slidably arranged on the lifting plate through the support wheel.

[0012] By adopting the technical scheme, when the lifting plate moves, the supporting wheel is rolled on the inclined supporting surface of the lifting plate under the guidance of the guide rod, the mounting rod drives the damping plate to complete lifting, the sliding resistance of the damping plate on the lifting plate is reduced, the braking error is reduced, and the braking accuracy is improved.

[0013] Optionally, the telescopic assembly further comprises a lifting platform, a bottom end of the lifting platform is slidingly arranged on the rack, the lifting platform is connected with the telescopic rod of the telescopic cylinder, and a plurality of lifting plates are arranged on the top end of the lifting platform.

[0014] By adopting the technical scheme, when the telescopic cylinder is telescoped, power is applied to the lifting platform, and the lifting plates are pushed at the same time, so that the damping plate is lifted and lowered, the plurality of lifting plates act on the damping plate at the same time, the stability of the lifting of the damping plate is further improved, the damping force applied when the damping plate contacts the rubber belt is more uniform, and the braking effect is further improved.

[0015] Optionally, the telescopic assembly further comprises an intermediate rod, both ends of the intermediate rod are fixedly connected with the lifting platform, and the telescopic rod of the telescopic cylinder is fixedly connected with the intermediate rod.

[0016] By adopting the technical scheme, when the telescopic cylinder is telescoped, the telescopic rod drives the two lifting platforms at both ends to move at the same time through the intermediate rod, so that the movement of the lifting plates and the lifting platform is realized, and the stability during movement is improved.

[0017] Optionally, the guide assembly further comprises a guide sleeve, the guide sleeve is arranged on the rack, and the guide rod is slidingly arranged in the guide sleeve, so that the guide rod slides in the second direction.

[0018] By adopting the technical scheme, during the movement of the lifting plate, the guide rod slides in the guide sleeve, so that the lifting direction of the damping plate can be adjusted according to the installation angle of the guide sleeve during the installation of the guide sleeve, and the sliding of the guide rod is smoother.

[0019] Optionally, the guide assembly further comprises a guide wheel, the guide wheel is arranged on the top end of the rack, and the bottom end of the lifting platform is rollingly arranged on the rack through the guide wheel.

[0020] By adopting the technical scheme, during the movement of the lifting platform, the lifting platform slides more stably on the rack through the guide wheel, the sliding resistance of the lifting platform during sliding is reduced, and the braking effect of the device is improved.

[0021] Optionally, the support wheel is provided with a first intermediate groove, the support wheel rolls on the lifting plate through the first intermediate groove, the guide wheel is provided with a second intermediate groove, the bottom end of the lifting platform is arranged in the second intermediate groove, and the bottom end of the lifting platform slides relative to the rack through the intermediate groove.

[0022] By adopting the technical scheme, the lifting plate can move stably under the action of the support wheel, and the lifting platform can move stably under the action of the guide wheel, the deviation of the lifting plate and the lifting platform is reduced, and the stability during lifting is improved.

[0023] Optionally, the guide assembly further comprises a limiting plate arranged on the plane of the upper end of the lifting plate.

[0024] By adopting the technical scheme, in the braking process, the limiting plate blocks the damping plate, the possibility of derailment of the damping plate is reduced, and the safety of the device is improved; meanwhile, the possibility of excessive displacement of the damping plate due to excessive momentum of the rubber belt is reduced.

[0025] Optionally, the bottom end of the lifting platform is provided with a limiting groove, and the guide wheel rolls in the limiting groove.

[0026] By adopting the technical scheme, in the moving process of the lifting platform, the lifting platform slides on the rack through the limiting groove at the bottom end, the two ends of the limiting groove limit the moving distance of the lifting platform, the possibility of excessive extension or contraction of the telescopic cylinder is reduced, the possibility of derailment of the lifting platform is reduced, the safety of braking is improved, and the possibility of excessive application of braking force is reduced.

[0027] Optionally, the damping plate comprises a bottom plate and two side plates, the bottom plate is arranged at the upper end of the guide rod, the two side plates are arranged on the two sides of the bottom plate respectively, the mounting rod is arranged on the bottom surface of the side plate, and the end surfaces of the bottom plate and the side plate are arranged in an arc surface or an inclined surface.

[0028] By adopting the technical scheme, the side plates and the bottom plate can be in more sufficient contact with the rubber belt, the braking effect is further improved, the damping plate can have more braking contact area with the rubber belt, the possibility of stress concentration of the rubber belt due to too small contact area with the damping plate during braking is reduced, the possibility of damage of the rubber belt caused by the damping plate is reduced, and the practicability of the device is improved; the two end surfaces of the bottom plate and the side plate are arranged in an arc or an inclined surface, so that the two ends of the damping plate can be in gentle contact with the rubber belt during braking, the possibility of accidental damage of the rubber belt is reduced, and the interface of the rubber belt is prevented from scratching the damping plate when the interface runs to the damping device; meanwhile, the arc surface or the inclined surface can protect the interface of the rubber belt and prevent the interface from being raised.

[0029] In summary, the utility model has at least one of the following beneficial technical effects:

[0030] 1. By setting up the lifting mechanism, realize can in a variety of working conditions, damping plate can stably with adhesive tape contact and exert braking force, and can stably realize the contraction and lifting of damping plate, reduce the influence of the working condition environment of arrangement on brake device, improve the effect of braking.

[0031] 2. By setting up the guide wheel, reduce the sliding resistance of lifting platform in the sliding process, improve the braking effect of the device, reduce the sliding resistance of damping plate on the lifting plate, reduce the error of braking, improve the accuracy of braking.

[0032] 3. By setting up the guide rod and guide sleeve, realize in the damping plate lifting process, multiple guide rods participate in the guidance, improve the stability of damping plate lifting, make the stress of damping plate more uniform;At the same time, the damping plate can stably rise or fall, so that the damping plate can respond in time, and the braking effect is more stable, and the braking direction is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is the overall structure schematic diagram of the utility model embodiment;

[0034] Figure 2 It is the schematic diagram of part structure of the utility model embodiment;

[0035] Figure 3 It is the schematic diagram of the utility model embodiment in the braking state;

[0036] Figure 4 It is the schematic diagram of the utility model embodiment in the non-braking state;

[0037] Figure 5 It is Figure 3 Part structure cross-sectional view in

[0038] Figure 6 It is Figure 1 The local enlarged schematic diagram of A of

[0039] Mark explanation: 100, rack;110, support frame;120, connecting frame;200, lifting mechanism;210, telescopic assembly;211, telescopic cylinder;212, lifting plate;213, lifting platform;214, limit groove;215, intermediate rod;216, inclined support surface;220, guide assembly;221, guide rod;222, guide wheel;224, limit plate;225, guide sleeve;300, brake mechanism;310, damping plate;311, bottom plate;312, side plate;320, support part;321, mounting rod;322, support wheel;410, first intermediate groove;420, second intermediate groove. DETAILED DESCRIPTION

[0040] The application will be further described below in conjunction with the accompanying drawings. Figures 1 to 6 The application will be further described below in conjunction with the accompanying drawings.

[0041] The application discloses a damping brake device for a belt conveyor. Figures 1 to 6 The damping brake device for the belt conveyor comprises a rack 100, a lifting mechanism 200 and a brake mechanism 300, the rack 100 comprises a support frame 110 and a connecting frame 120, the connecting frame 120 is fixedly installed on the support frame 110 through bolts; the lifting mechanism 200 comprises a telescopic assembly 210 and a guide assembly 220, the telescopic assembly 210 comprises a telescopic cylinder 211 and a lifting plate 212 used for lifting the brake mechanism 300, the fixed end of the telescopic cylinder 211 is installed on the connecting frame 120 through bolts, an intermediate rod 215 is connected to the telescopic rod of the telescopic cylinder 211, the two ends of the intermediate rod 215 are fixedly installed on the lifting plate 212 through bolts, one lifting plate 212 is installed at each end of the intermediate rod 215, the lifting plate 212 is slidingly arranged on the connecting frame 120, one side of the lifting plate 212 is an inclined support surface 216, the inclined support surface 216 is used for supporting the sliding of the brake mechanism 300, the guide assembly 220 comprises guide rods 221 and guide sleeves 225, a plurality of guide sleeves 225 are arranged, a plurality of guide rods 221 are arranged, one end of the guide rod 221 is fixedly arranged at the bottom end of the damping plate 310 through bolts, all the guide sleeves 225 are fixedly installed on the connecting frame 120, the guide rod 221 is slidingly arranged in the guide sleeve 225, one guide rod 221 corresponds to one guide sleeve 225; the brake mechanism 300 comprises the damping plate 310, and the bottom end of the damping plate 310 is slidingly connected with the lifting plate 212.

[0042] When the adhesive tape needs to be braked, the telescopic cylinder 211 is controlled to be telescoped, the lifting plate 212 is driven to slide on the connecting frame 120, the inclined support surface 216 is in sliding contact with the damping plate 310, with the movement of the lifting plate 212, the bottom end of the damping plate 310 slides on the inclined support surface 216 of the lifting plate 212, thereby the height of the damping plate 310 is adjusted, and the stability of the height adjustment of the damping plate 310 is improved; under the guidance of the guide rods 221, the damping plate 310 completes the lifting and contraction process, the damping plate 310 can stably contact the adhesive tape and apply a braking force in various working conditions, the contraction and lifting of the damping plate 310 can be stably realized, the influence of the working condition environment on the brake device is reduced, and the braking effect is improved; the plurality of guide rods 221 participate in the guidance, and the stability of the lifting of the damping plate 310 is improved.

[0043] Further, in some embodiments, the support part 320 comprises a mounting rod 321 and a plurality of support wheels 322, the mounting rod 321 is fixedly installed at the bottom end of the damping plate 310, and the fixed end of the support wheel 322 is installed at the end of the mounting rod 321 away from the damping plate 310, and the mounting rod 321 is slidingly arranged on the lifting plate 212 through the support wheel 322.

[0044] When the lifting plate 212 moves, the support wheel 322 is pushed to roll on the inclined support surface 216 of the lifting plate 212 under the guidance of the guide rod 221, so that the mounting rod 321 drives the damping plate 310 to complete lifting, thereby reducing the sliding resistance of the damping plate 310 on the lifting plate 212, reducing the braking error, and improving the accuracy of braking.

[0045] Further, in some embodiments, the telescopic assembly 210 further comprises two lifting platforms 213, the bottom end of the lifting platform 213 is slidingly arranged on the upper end of the connecting frame 120, and the two lifting platforms 213 are connected to each other through a middle rod 215, the middle rod 215 is connected with the telescopic rod of the telescopic cylinder 211, and a plurality of lifting plates 212 are arranged on the upper end of the lifting platform 213, and the lifting platform 213 and the lifting plate 212 slide in the first direction.

[0046] When the telescopic cylinder 211 telescopes, power is applied to the lifting platform 213, and the lifting plate 212 is pushed together, and then the lifting and lowering of the damping plate 310 are realized, the plurality of lifting plates 212 act on the damping plate 310 at the same time, which further improves the stability of the lifting of the damping plate 310, and when the damping plate 310 contacts with the rubber belt, the damping force applied is more uniform, and the braking effect is further improved.

[0047] Further, in some embodiments, the support wheel 322 is provided with a first middle groove 410, the support wheel 322 rolls on the lifting plate 212 through the first middle groove 410, the guide wheel 222 is provided with a second middle groove 420, and the bottom end of the lifting platform 213 is arranged in the second middle groove 420, and the bottom end of the lifting platform 213 slides relative to the connecting frame 120 through the second middle groove 420 of the guide wheel 222.

[0048] The lifting plate 212 can move stably under the action of the support wheel 322, and the lifting platform 213 can move stably under the action of the guide wheel 222, the lifting plate 212 and the lifting platform 213 can reduce the possibility of deviation, the possibility of derailment is reduced, and the stability and reliability during lifting are improved.

[0049] Further, in some embodiments, the guide assembly 220 further comprises a limiting plate 224 arranged on the plane at the upper end of the lifting plate 212.

[0050] In the braking process, the damping plate 310 is blocked by the limiting plate 224, the possibility of derailment of the damping plate 310 is reduced, and the safety of the device is improved; at the same time, the limiting plate 224 reduces the possibility of excessive displacement of the damping plate 310 due to excessive belt momentum.

[0051] Further, in some embodiments, a limiting groove 214 is formed at the bottom end of the belt lifting platform 213, and the guide wheel 222 rolls in the limiting groove 214.

[0052] During the movement of the lifting platform 213, the lifting platform 213 slides on the rack 100 through the limiting groove 214 at the bottom end, and the two ends of the limiting groove 214 limit the movement distance of the lifting platform 213, thereby reducing the possibility of excessive extension or contraction of the telescopic cylinder 211, reducing the possibility of derailment of the lifting platform 213, improving the safety of the brake, and reducing the possibility of excessive application of the brake force.

[0053] Further, in some embodiments, the damping plate 310 includes a bottom plate 311 and two side plates 312, the bottom plate 311 is arranged on the guide rod 221, and the two side plates 312 are arranged at the two ends of the bottom plate 311, respectively. The side plate 312 is connected with the second guide wheel 222, the side plate 312 is slidably arranged on the lifting plate 212 through the second guide wheel 222, the side plate 312 is arranged at an inclination with the bottom plate 311, the angle between the two side plates 312 and the bottom plate 311 is close to the curvature of the bottom surface of the belt, and the end faces of the bottom plate 311 and the side plate 312 are arranged in an arc shape or an inclined surface.

[0054] In the process of realizing that the damping plate 310 participates in braking, the side plate 312 and the bottom plate 311 can be more fully contacted with the belt, thereby further improving the braking effect, and the damping plate 310 can have more braking contact area with the belt, thereby reducing the possibility of stress concentration of the belt in the braking process due to the small contact area with the damping plate 310, reducing the possibility of damage to the belt caused by the damping plate 310, and improving the practicability of the device; the two end faces of the bottom plate 311 and the side plate 312 are arranged in an arc shape or an inclined surface, so that the two ends of the damping plate 310 can be gently contacted with the belt during braking, thereby reducing the possibility of scratching and damaging the belt; and the arc surface or the inclined surface can protect the belt buckle and prevent the buckle from being raised.

[0055] The implementation principle of the damping brake device for the belt conveyor in the embodiment of the utility model is as follows:

[0056] By regulating the brake mechanism 300 and the lifting mechanism 200, the extension and retraction stroke of the telescopic cylinder 211 is controlled, the damping plate 310 is lifted by the lifting plate 212 of the lifting mechanism 200, the damping plate 310 can correspond to the friction braking of the rubber belt on the upper end, the auxiliary braking of the conveyor is realized. After braking, the damping plate 310 is retracted by the lifting mechanism 200, the normal operation of the rubber belt is ensured, the control accuracy of the damping brake is improved, and the practicability of the device is improved.

[0057] The above are preferred embodiments of the present application, not to limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A damping brake device for a belt conveyor, characterized by: The device comprises a rack (100), a lifting mechanism (200) and a braking mechanism (300), the lifting mechanism (200) comprises a telescopic assembly (210) and a guide assembly (220), the telescopic assembly (210) comprises a telescopic cylinder (211) and a lifting plate (212) for lifting the braking mechanism (300), the fixed end of the telescopic cylinder (211) is arranged on the rack (100), the bottom end of the lifting plate (212) is slidingly arranged on the rack (100), one side of the lifting plate (212) is an inclined support surface (216), the lifting plate (212) is fixedly connected with the telescopic rod of the telescopic cylinder (211), the guide assembly (220) comprises a guide rod (221), the guide rod (221) is slidingly arranged on the rack (100); The braking mechanism (300) comprises a damping plate (310), one end of the guide rod (221) is fixedly connected with the bottom surface of the damping plate (310), the bottom end of the damping plate (310) is provided with a support part (320), and the damping plate (310) is slidingly arranged on the lifting plate (212) through the support part (320).

2. A damping brake device for a belt conveyor according to claim 1, characterized in that: The support part (320) comprises a mounting rod (321) and a support wheel (322), the mounting rod (321) is arranged on the bottom surface of the damping plate (310), the support wheel (322) is mounted at the bottom end of the mounting rod (321), and the mounting rod (321) is slidingly arranged on the lifting plate (212) through the support wheel (322).

3. A damping brake device for a belt conveyor according to claim 2, characterized in that: The telescopic assembly (210) further comprises a lifting platform (213), the bottom end of the lifting platform (213) is slidingly arranged on the rack (100), the lifting platform (213) is connected with the telescopic rod of the telescopic cylinder (211), a plurality of lifting plates (212) are arranged on the upper end of the lifting platform (213), and the lifting platform (213) and the lifting plate (212) slide in the first direction.

4. A damping brake device for a belt conveyor according to claim 3, characterized in that: The telescopic assembly (210) further comprises an intermediate rod (215), both ends of the intermediate rod (215) are fixedly connected with the lifting platform (213), and the telescopic rod of the telescopic cylinder (211) is fixedly connected with the intermediate rod (215).

5. A damping brake device for a belt conveyor according to any one of claims 1 to 4, characterized in that: The guide assembly (220) further comprises a guide sleeve (225), the guide sleeve (225) is arranged on the rack (100), and the guide rod (221) is slidingly arranged in the guide sleeve (225), so that the guide rod (221) slides in the second direction.

6. A damping brake device for a belt conveyor according to claim 3, characterized in that: The guide assembly (220) further comprises a guide wheel (222), the guide wheel (222) is arranged on the upper end of the rack (100), and the bottom end of the lifting platform (213) is rollingly arranged on the rack (100) through the guide wheel (222).

7. A damping brake device for a belt conveyor according to claim 6, characterized in that: The support wheel (322) is provided with a first intermediate groove (410), the support wheel (322) rolls on the lifting plate (212) through the first intermediate groove (410), the guide wheel (222) is provided with a second intermediate groove (420), the bottom end of the lifting platform (213) is arranged in the second intermediate groove (420), and the bottom end of the lifting platform (213) slides relative to the rack (100) through the second intermediate groove (420).

8. The damping brake device for a belt conveyor according to claim 2, characterized by: The guide assembly (220) further comprises a limiting plate (224), and the limiting plate (224) is arranged on the plane of the upper end of the lifting plate (212).

9. A damping brake device for a belt conveyor according to claim 6, characterized in that: The bottom end of the lifting platform (213) is provided with a limiting groove (214), and the guide wheel (222) rolls in the limiting groove (214).

10. The damping brake device for a belt conveyor according to claim 2, characterized by: The damping plate (310) comprises a bottom plate (311) and two side plates (312), the bottom plate (311) is arranged at the upper end of the guide rod (221), the two side plates (312) are respectively arranged at the two sides of the bottom plate (311), the mounting rod (321) is arranged on the bottom surface of the side plate (312), and the end surfaces of the bottom plate (311) and the side plate (312) are in the form of arc surfaces or inclined surfaces.

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