Transmission protection device of center transmission mud scraper

Abstract

The utility model discloses a transmission protection device of a center transmission mud scraper, which relates to the technical field of transmission protection and comprises a support frame, a transmission shaft is arranged in the middle of the lower surface of the support frame in a penetrating manner through a bearing, a transmission disc is fixedly arranged at the top end of the transmission shaft, and a power disc is arranged on the upper surface of the transmission disc. The supporting frame is arranged, the transmission shaft is arranged in the middle of the supporting frame, the transmission disc and the power disc are arranged above the transmission shaft, the transmission disc and the power disc are connected through the clamping block, one side of the clamping block is of an inclined structure, and the power disc is tightly pressed above the transmission disc through the supporting spring, so that the transmission effect is achieved; when the driving motor is powered off, the transmission disc stops rotating, the power disc continues rotating and is separated from the power disc, the power disc can start the touch switch at the moment, rapid power off of the driving motor is achieved, and therefore the effect of protecting the driving motor is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission protection, in particular to a transmission protection device for a central transmission mud scraper. Background Art

[0002] Center drive scraper is widely used in sewage treatment projects in cities, chemical industry, textile, metallurgy and other industries; it has reasonable structure, high efficiency, convenient operation and maintenance, and is an ideal supporting facility for sewage treatment projects.

[0003] The publication number is CN206295639U. A suspended central drive scraper comprises a working bridge, a scraper shaft is arranged at the center of the working bridge, a driving mechanism for driving the scraper shaft is arranged on the working bridge, a guide cylinder is arranged below the working bridge, the guide cylinder is coaxially arranged with the scraper shaft, a water inlet pipe is connected to the upper part of the guide cylinder, two scraper arms are arranged radially near the bottom of the scraper shaft, a scraper plate is arranged on the scraper arm, two scraper arm supports perpendicular to the scraper arm are arranged radially on the scraper shaft, and the scraper The arm and the scraper arm support are symmetrically arranged about the center of the scraper shaft, the scraper arm and the scraper arm support are connected by the scraper arm support steel bars, the scraper arm support steel bars are provided with a tensioning device, the bottom end of the scraper shaft is installed with an underwater bearing seat through an underwater bearing, and a shim for adjusting the height of the underwater bearing seat is provided under the underwater bearing seat. The suspended central transmission scraper provided by the utility model has a simple structure, convenient maintenance and management, stable operation, safe and reliable operation, good scraping effect, and low water content of the removed sludge.

[0004] The above technical solution has some problems in practical application. When the sedimentation tank is scraped, due to the accumulation of sludge at the bottom of the sedimentation tank, the load on the scraper arm and the transmission shaft is too large, and the large load is transmitted to the drive mechanism, which can easily cause overload damage to the drive mechanism.

[0005] Therefore, it is necessary to invent a central transmission scraper transmission protection device to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a transmission protection device for a central transmission mud scraper to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transmission protection device for a central transmission scraper comprises a support frame, a transmission shaft is provided through a bearing in the middle part of the lower surface of the support frame, a transmission disc is fixedly provided at the top end of the transmission shaft, a power disc is provided on the upper surface of the transmission disc, a plurality of blocks are fixedly provided on the side where the power disc and the transmission disc are close to each other, and the plurality of blocks are arranged in a surrounding manner, the power disc and the blocks on the transmission disc are engaged with each other, and one side of the block is arranged as an inclined surface, a slot is provided through the middle part of the power disc, a spline shaft is inserted in the slot, a rotating disc is fixedly provided on the top end of the spline shaft, a limiting ring is provided below the rotating disc, a supporting spring is fixedly provided between the limiting ring and the power disc, a sliding rod is fixedly provided on the upper surface of the support frame, a movable plate is sleeved in the middle part of the sliding rod, and the movable plate is arranged above the power disc, a touch switch is fixedly provided on the top end of one side of the sliding rod, and the touch switch is arranged above the movable plate.

[0008] Preferably, a plurality of positioning rods are arranged around the upper surface of the limiting ring, and the positioning rods are arranged through the upper surface of the turntable and extend to the top of the turntable.

[0009] Preferably, a positioning seat is fixedly provided at the top end of the positioning rod, a thread groove is penetrated through the middle of the positioning seat, an adjusting screw is penetrated through the inside of the thread groove, and the bottom end of the adjusting screw is movably arranged in the middle of the upper surface of the turntable through a bearing.

[0010] Preferably, a bracket is movably provided at the top of the turntable via a bearing, and the bracket is fixedly provided on the upper surface of the support frame.

[0011] Preferably, a ring gear is fixedly provided on the outer side of the turntable, a driving gear is provided on one side of the ring gear, a driving motor is fixedly provided below the driving gear, and the driving motor is fixedly provided on the upper surface of the support frame, and the driving motor is electrically connected to the touch switch through a wire.

[0012] Preferably, a rotating shaft is fixedly provided at the bottom end of the transmission shaft, and a mud scraping arm is fixedly provided at the bottom end of the rotating shaft.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model is provided with a support frame, a transmission shaft is provided in the middle of the support frame, a transmission disc and a power disc are provided above the transmission shaft, the transmission disc and the power disc are connected by a clamping block, and one side of the clamping block is provided with an inclined structure, the power disc is pressed on the top of the transmission disc by a support spring to achieve a transmission effect, when the device is overloaded, the transmission disc stops rotating, while the power disc continues to rotate and separates from the power disc, at which time the power disc can start a touch switch to achieve rapid power off of the drive motor, thereby protecting the drive motor;

[0015] 2. The utility model uses a power disk, and a limit ring with adjustable position is arranged above the power disk. A support spring is arranged between the limit ring and the power disk. By adjusting the position of the limit ring, the compression amount of the support spring can be adjusted, thereby adjusting the load amount when the power disk and the transmission disk are separated, so that the device can be adaptively adjusted according to the load of the driving motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the drive motor and the power disk of the utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the power disc and the transmission disc of the utility model.

[0019] Figure 4 This is a schematic diagram of the power disk structure of the utility model.

[0020] In the figure: 1. support frame; 2. transmission shaft; 3. transmission plate; 4. power plate; 5. block; 6. slot; 7. spline shaft; 8. turntable; 9. limit ring; 10. support spring; 11. positioning rod; 12. positioning seat; 13. threaded groove; 14. adjusting screw; 15. bracket; 16. ring gear; 17. driving gear; 18. driving motor; 19. sliding rod; 20. movable plate; 21. touch switch; 22. rotating shaft; 23. mud scraper arm. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-4A transmission protection device for a central transmission mud scraper shown in the figure comprises a support frame 1, a transmission shaft 2 is provided through the middle of the lower surface of the support frame 1 through a bearing, a transmission disc 3 is fixedly provided on the top of the transmission shaft 2, a power disc 4 is provided on the upper surface of the transmission disc 3, a plurality of clamping blocks 5 are fixedly provided on the side where the power disc 4 and the transmission disc 3 are close to each other, and the plurality of clamping blocks 5 are arranged in a surrounding manner, the power disc 4 and the clamping blocks 5 on the transmission disc 3 are mutually clamped, and one side of the clamping block 5 is arranged as an inclined surface, and the setting of the inclined surface enables the power disc 4 to move upward and separate from the transmission disc 3 when there is a differential speed between the power disc 4 and the transmission disc 3;

[0023] Specifically, a slot 6 is provided through the middle of the power disk 4, a spline shaft 7 is inserted in the slot 6, a turntable 8 is fixedly provided at the top of the spline shaft 7, a limit ring 9 is provided below the turntable 8, a support spring 10 is fixedly provided between the limit ring 9 and the power disk 4, a plurality of positioning rods 11 are arranged around the upper surface of the limit ring 9, the positioning rods 11 are provided through the upper surface of the turntable 8 and extend to the top of the turntable 8, a positioning seat 12 is fixedly provided at the top of the positioning rod 11, a thread groove 13 is provided through the middle of the positioning seat 12, and the thread groove 13 is provided An adjusting screw 14 is provided inside the rotating disk 3, and the bottom end of the adjusting screw 14 is movably provided at the middle of the upper surface of the rotating disk 8 through a bearing. The position of the positioning seat 12 can be adjusted by adjusting the screw 14, and the positioning seat 12 can drive the limiting ring 9 to move, so as to adjust the distance between the limiting ring 9 and the power disk 4, thereby adjusting the compression amount of the supporting spring 10, and further adjusting the acting force between the power disk 4 and the transmission disk 3, so as to adjust the load amount of the transmission shaft 2 when the power disk 4 is separated from the transmission disk 3, thereby controlling the load protection range of the device;

[0024] More specifically, a bracket 15 is movably provided at the top of the turntable 8 through a bearing, and the bracket 15 is fixedly provided on the upper surface of the support frame 1, a ring gear 16 is fixedly provided on the outer side of the turntable 8, a driving gear 17 is provided on one side of the ring gear 16, a driving motor 18 is fixedly provided below the driving gear 17, and the driving motor 18 is fixedly provided on the upper surface of the support frame 1, and the driving motor 18 is electrically connected to the touch switch 21 through a wire;

[0025] In addition, a slide bar 19 is fixedly provided on the upper surface of the support frame 1, a movable plate 20 is sleeved in the middle of the slide bar 19, and the movable plate 20 is arranged above the power disk 4, a touch switch 21 is fixedly provided on the top of one side of the slide bar 19, and the touch switch 21 is arranged above the movable plate 20, the power disk 4 squeezes the touch switch 21 through the movable plate 20, and the touch switch 21 is triggered to disconnect, so that the drive motor 18 stops working, so as to protect the drive motor 18;

[0026] Moreover, a rotating shaft 22 is fixedly provided at the bottom end of the transmission shaft 2, and a scraper arm 23 is fixedly provided at the bottom end of the rotating shaft 22. The scraper arm 23 can scrape the mud from the sedimentation tank.

[0027] Working principle of this utility model:

[0028] When the device is in use, the support frame 1 can be installed above the sedimentation tank, the driving motor 18 can drive the turntable 8 to rotate through the driving gear 17 and the ring gear 16, and the turntable 8 can drive the power disc 4 to rotate through the spline shaft 7. At this time, the power disc 4 is pressed above the transmission disc 3 through the support spring 10, and the power disc 4 realizes power transmission with the transmission disc 3 through the clamping block 5, and the transmission disc 3 can drive the transmission shaft 2 to drive the rotating shaft 22 and the scraping arm 23 to rotate, so as to realize the scraping operation;

[0029] When the scraper arm 23 is overloaded due to sludge obstruction, the scraper arm 23 and the rotating shaft 22 stop rotating, and the rotating shaft 22 acts on the transmission shaft 2 and the transmission disc 3, so that a differential speed occurs between the transmission disc 3 and the power disc 4. At this time, the power disc 4 moves upward under the guidance of the inclined surface on one side of the block 5. At this time, the power disc 4 squeezes the touch switch 21 through the movable plate 20, and the touch switch 21 is triggered to disconnect, so that the drive motor 18 stops working, thereby protecting the drive motor 18.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A transmission protection device for a central transmission mud scraper, comprising a support frame (1), characterized in that: A transmission shaft (2) is provided through a bearing in the middle of the lower surface of the support frame (1), a transmission disc (3) is fixedly provided at the top of the transmission shaft (2), a power disc (4) is provided on the upper surface of the transmission disc (3), a plurality of clamping blocks (5) are fixedly provided on the side where the power disc (4) and the transmission disc (3) are close to each other, and the plurality of clamping blocks (5) are arranged in a surrounding manner, the power disc (4) and the clamping blocks (5) on the transmission disc (3) are mutually clamped, and one side of the clamping block (5) is arranged as an inclined surface, a slot (6) is provided through the middle of the power disc (4), and the internal insertion of the slot (6) is A spline shaft (7) is provided, a rotating disk (8) is fixedly provided at the top end of the spline shaft (7), a limit ring (9) is provided below the rotating disk (8), a support spring (10) is fixedly provided between the limit ring (9) and the power disk (4), a slide bar (19) is fixedly provided on the upper surface of the support frame (1), a movable plate (20) is sleeved in the middle of the slide bar (19), and the movable plate (20) is arranged above the power disk (4), and a touch switch (21) is fixedly provided at the top end of one side of the slide bar (19), and the touch switch (21) is arranged above the movable plate (20).

2. A transmission protection device for a central transmission mud scraper according to claim 1, characterized in that: A plurality of positioning rods (11) are arranged around the upper surface of the limiting ring (9), and the positioning rods (11) are arranged through the upper surface of the rotating disk (8) and extend to the top of the rotating disk (8).

3. A transmission protection device for a central transmission mud scraper according to claim 2, characterized in that: A positioning seat (12) is fixedly provided at the top end of the positioning rod (11), a thread groove (13) is provided through the middle of the positioning seat (12), an adjusting screw (14) is provided through the inside of the thread groove (13), and the bottom end of the adjusting screw (14) is movably provided in the middle of the upper surface of the turntable (8) through a bearing.

4. A transmission protection device for a central transmission mud scraper according to claim 3, characterized in that: A bracket (15) is movably provided at the top end of the turntable (8) via a bearing, and the bracket (15) is fixedly provided on the upper surface of the support frame (1).

5. A transmission protection device for a central transmission mud scraper according to claim 4, characterized in that: A ring gear (16) is fixedly arranged on the outer side of the turntable (8), a driving gear (17) is arranged on one side of the ring gear (16), a driving motor (18) is fixedly arranged below the driving gear (17), and the driving motor (18) is fixedly arranged on the upper surface of the support frame (1), and the driving motor (18) is electrically connected to the touch switch (21) through a wire.

6. A transmission protection device for a central transmission mud scraper according to claim 5, characterized in that: A rotating shaft (22) is fixedly arranged at the bottom end of the transmission shaft (2), and a mud scraping arm (23) is fixedly arranged at the bottom end of the rotating shaft (22).

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