Heavy scraper chain breakage protection device

Abstract

The utility model relates to the field of chain breakage protection, in particular to a heavy scraper chain breakage protection device which comprises an installation frame, two transmission chain wheels are rotationally connected to the inner wall of the installation frame, transmission chains are arranged on the surfaces of the transmission chain wheels in a sleeved mode, and a connecting rod is connected between the two transmission chains. The protection mechanism is arranged on the inner side of the mounting frame; the protection mechanism comprises a plurality of lock catch assemblies installed on the inner wall of the installation frame. Under the action of the lock catch assembly, the transmission chain is protected through the connecting rod, the device is reset through the torsional spring, at the moment, the lock catch support is propped against the fixed cross rod to limit swing of the lock catch support, and when the transmission chain is broken, the connecting rod pokes the lock catch support to be limited by the fixed cross rod, so that the transmission chain is prevented from being broken. The broken transmission chain is protected, the situation that the chain is loosened is reduced, and the working efficiency of follow-up maintenance is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to chain breakage protection field, especially a heavy duty scraper chain breakage protection device. BACKGROUND

[0002] The scraper is the main equipment commonly used in coal production industry, and its structure is generally that a plurality of scrapers between two chains are driven to move transversely by a chain wheel, the scraper continuously conveys materials to the movement direction, and due to reasons such as conveying length and direction, the tension between the two chains is different, and the chain jumping and chain breakage are prone to occur.

[0003] According to the search, the prior art "a scraper chain breakage protection device" with the announcement number "CN220663797U" is a contact type scraper chain breakage protection device, which is connected to the tail shaft of the scraper through the controller gear, drives the supporting rod to run up and down around the hinge, and the sensing contact makes the orderly opening and closing action, but when the scraper chain breaks, the chain will be loose, which affects the work efficiency of subsequent maintenance.

[0004] Therefore, a heavy duty scraper chain breakage protection device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a heavy duty scraper chain breakage protection device to solve the above problems, and improve the problem that the chain will be loose when the scraper chain breaks, which affects the work efficiency of subsequent maintenance.

[0006] The utility model realizes the above-mentioned purpose through the following technical scheme, a heavy duty scraper chain breakage protection device, comprising: a mounting frame, the inner wall of the mounting frame is rotatably connected with two transmission sprockets, the surface of the transmission sprocket is provided with a transmission chain, and a connecting rod is connected between the two transmission chains; a protection mechanism is arranged on the inner side of the mounting frame; wherein the protection mechanism comprises a plurality of lock catch assemblies mounted on the inner wall of the mounting frame, the plurality of lock catch assemblies are distributed in a straight line along the inner wall of the mounting frame, the lock catch assembly is arranged on the inner side of the transmission chain, and the surface of the lock catch assembly is connected with a synchronous assembly.

[0007] Preferably, the lock catch assembly comprises a rotating horizontal shaft arranged on the inner side of the mounting frame, the end of the rotating horizontal shaft is rotatably connected to the inner wall of the mounting frame, the surface of the rotating horizontal shaft is provided with two fixed sleeves, the fixed sleeve is fixedly connected to the inner wall of the mounting frame, the inner wall of the fixed sleeve is fixedly connected with a torsional spring, and the torsional spring is fixedly connected to the surface of the rotating horizontal shaft.

[0008] Preferably, the synchronous assembly comprises a synchronous bracket fixedly connected to the surface of the rotating horizontal shaft, the synchronous bracket and the lock catch bracket are centrally symmetrically distributed along the center line adjacent to the rotating horizontal shaft, and the lower end of the synchronous bracket is embedded with a connecting sleeve.

[0009] Preferably, the surface of the rotating horizontal shaft is fixedly connected with a lock catch bracket in the middle portion, and the longitudinal section of the lock catch bracket is in L shape.

[0010] Preferably, a fixed cross bar is fixedly connected between the two fixed collars, and the fixed cross bar is located above the rotating horizontal shaft. When the connecting rod moves, the lock catch bracket is gradually actuated to swing, wherein the lock catch bracket drives the rotating horizontal shaft to synchronously swing when swinging, and then the rotating horizontal shaft is reset by the torsional spring, and at this time, the lock catch bracket is abutted by the fixed cross bar to limit the swing of the lock catch bracket.

[0011] Preferably, the inner wall of the connecting sleeve is rotatably connected with a connecting cross bar, and both ends of the connecting cross bar penetrate to the outside of the connecting sleeve.

[0012] Preferably, a fixed connecting rod is arranged on both sides of the connecting sleeve and fixedly connected to the surface of the connecting cross bar. The movement of the synchronous bracket drives the connecting cross bar and the fixed connecting rod to synchronously deviate, a plurality of synchronous brackets are synchronously deviated, and a plurality of rotating horizontal shafts are synchronously rotated.

[0013] The beneficial effects of the present application are as follows:

[0014] 1. The heavy-duty scraper chain breaking protection device can protect the transmission chain through the connecting rod under the action of the lock catch assembly. The device is reset by the torsional spring, at this time, the lock catch bracket is abutted by the fixed cross bar to limit the swing of the lock catch bracket, when the transmission chain is broken, the connecting rod actuates the lock catch bracket to be limited by the fixed cross bar, thereby protecting the broken transmission chain and reducing the loosening of the chain, and the work efficiency of subsequent maintenance is ensured.

[0015] 2. The synchronous assembly can make the plurality of lock catch assemblies form the effect of synchronously locking the connecting rod under the action of the synchronous assembly. The movement of the synchronous bracket drives the connecting cross bar to deviate, at this time, the fixed connecting rod is synchronously deviated, thereby making the plurality of synchronous brackets synchronously deviate and driving the plurality of rotating horizontal shafts to synchronously rotate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structure of the present application is shown in the figure;

[0017] Figure 2 The protection mechanism structure of the present application is shown in the figure;

[0018] Figure 3 This is a partial structural diagram of the locking assembly of this utility model;

[0019] Figure 4 This is a schematic diagram of a partial exploded structure of the synchronization component of this utility model.

[0020] In the diagram: 1. Mounting bracket; 11. Drive sprocket; 2. Drive chain; 21. Connecting rod; 3. Protection mechanism; 31. Locking assembly; 311. Rotating horizontal shaft; 312. Torsion spring; 313. Fixing collar; 314. Fixing crossbar; 315. Locking bracket; 32. Synchronization assembly; 321. Synchronization bracket; 322. Connecting sleeve; 323. Connecting crossbar; 324. Fixing connecting rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In practical implementation: such as Figures 1-4 As shown, a heavy-duty scraper conveyor chain breakage protection device includes: a mounting frame 1, with two drive sprockets 11 rotatably connected to the inner wall of the mounting frame 1, a drive chain 2 sleeved on the surface of the drive sprockets 11, and a connecting rod 21 connecting the two drive chains 2; a protection mechanism 3, which is disposed inside the mounting frame 1; wherein, the protection mechanism 3 includes multiple locking components 31 installed on the inner wall of the mounting frame 1, the multiple locking components 31 being linearly distributed along the inner wall of the mounting frame 1, the locking components 31 being disposed inside the drive chains 2, and a synchronization component 32 being connected to the surface of the locking components 31;

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, the locking assembly 31 includes a rotating horizontal shaft 311 disposed inside the mounting frame 1. The end of the rotating horizontal shaft 311 is rotatably connected to the inner wall of the mounting frame 1. Two fixing collars 313 are sleeved on the surface of the rotating horizontal shaft 311. The fixing collars 313 are fixedly connected to the inner wall of the mounting frame 1. A torsion spring 312 is fixedly connected to the inner wall of the fixing collars 313. The torsion spring 312 is fixedly connected to the surface of the rotating horizontal shaft 311. A locking bracket 315 is fixedly connected to the middle of the surface of the rotating horizontal shaft 311. The longitudinal section of the locking bracket 315 is L-shaped. A fixing crossbar 314 is fixedly connected between the two fixing collars 313. The fixing crossbar 314 is located above the rotating horizontal shaft 311.

[0024] The transmission chain 2 is driven to rotate by the transmission sprocket 11, and then the connecting rod 21 is driven to rotate synchronously. When the connecting rod 21 moves, the lock bracket 315 is gradually pushed to swing. When the lock bracket 315 swings, the rotating shaft 311 is driven to swing synchronously, and then the rotating shaft 311 is reset by the torsional spring 312. At this time, the lock bracket 315 is abutted by the fixed cross rod 314, so that the swing of the lock bracket 315 is limited. When the transmission chain 2 is suddenly broken, the connecting rod 21 pushes the lock bracket 315, and then the lock bracket 315 is limited by the fixed cross rod 314, so that the broken transmission chain 2 is protected.

[0025] As shown in Figure 1 、 Figure 2 and Figure 4 , the synchronous assembly 32 includes a synchronous bracket 321 fixedly connected to the surface of the rotating shaft 311. The synchronous bracket 321 and the lock bracket 315 are centrally symmetrically distributed along the center line of the adjacent rotating shaft 311. The lower end of the synchronous bracket 321 is obliquely embedded with a connecting sleeve 322. The inner wall of the connecting sleeve 322 is rotatably connected with a connecting cross rod 323. The two ends of the connecting cross rod 323 are both penetrated to the outside of the connecting sleeve 322. The two sides of the connecting sleeve 322 are both provided with a fixed connecting rod 324 fixedly connected to the surface of the connecting cross rod 323.

[0026] When the transmission chain 2 is broken, the connecting rod 21 moves, and the rotating shaft 311 moves under the influence of the lock bracket 315. At this time, the rotating direction of the synchronous bracket 321 is consistent with that of the lock bracket 315. The synchronous bracket 321 can hook and lock the lower connecting rod 21 to prevent the lower connecting rod 21 from falling off. The movement of the synchronous bracket 321 drives the connecting cross rod 323 to deviate, and then the fixed connecting rod 324 deviates synchronously, so that the multiple synchronous brackets 321 deviate synchronously, and the multiple rotating shafts 311 rotate synchronously.

[0027] The utility model discloses when using, transmission chain 2 is driven to rotate under the drive of transmission sprocket 11, drives connecting rod 21 to rotate synchronously, when connecting rod 21 follows the removal, gradually pushes and drives lock catch support 315 to swing, lock catch support 315 swing drives rotating horizontal axle 311 synchronous swing, rotating horizontal axle 311 resets through torsional spring 312, lock catch support 315 is resisted by fixed crosspiece 314, limit lock catch support 315 swing, multiple lock catch subassembly 31 when transmission chain 2 breaks, connecting rod 21 follows the removal, rotating horizontal axle 311 follows the removal under the influence of lock catch support 315, synchronous support 321 and the rotating direction of lock catch support 315 are identical, and synchronous support 321 forms the limit hook lock to lower connecting rod 21, and the removal of synchronous support 321 drives connecting crosspiece 323 and fixed connecting rod 324 synchronous deviation, and multiple synchronous supports 321 follow synchronous deviation, drive multiple rotating horizontal axle 311 synchronous rotation.

[0028] Furthermore, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A chain breakage protection device for a heavy-duty flight conveyor, characterized in that, The utility model relates to a kind of protection mechanism for transmission chain, including: Mounting bracket (1), the inner wall of mounting bracket (1) is rotatably connected with two transmission sprocket (11), the surface of transmission sprocket (11) is equipped with transmission chain (2), and connecting rod (21) is connected between two transmission chain (2); Protective mechanism (3), the inner side of mounting bracket (1) is provided with protective mechanism (3); Wherein, the protective mechanism (3) includes multiple lock catch assemblies (31) mounted on the inner wall of mounting bracket (1), multiple lock catch assemblies (31) are linearly distributed along the inner wall of mounting bracket (1), lock catch assemblies (31) are arranged on the inner side of transmission chain (2), and the surface of lock catch assemblies (31) is connected with synchronous assembly (32).

2. A chain breakage protection device for a heavy-duty flight bar machine as claimed in claim 1, wherein: The lock catch assembly (31) includes a rotating horizontal shaft (311) arranged on the inner side of mounting bracket (1), the end of the rotating horizontal shaft (311) is rotatably connected to the inner wall of mounting bracket (1), the surface of the rotating horizontal shaft (311) is equipped with two fixed collars (313), the fixed collars (313) are fixedly connected to the inner wall of mounting bracket (1), the inner wall of the fixed collar (313) is fixedly connected with a torsion spring (312), and the torsion spring (312) is fixedly connected to the surface of the rotating horizontal shaft (311).

3. A chain breakage protection device for a heavy-duty flight bar machine as claimed in claim 2, wherein: The synchronous assembly (32) includes a synchronous bracket (321) fixedly connected to the surface of the rotating horizontal shaft (311), the synchronous bracket (321) and the lock catch bracket (315) are centrally symmetrically distributed along the center line of adjacent rotating horizontal shaft (311), and the lower end of the synchronous bracket (321) is embedded with a connecting sleeve (322).

4. A chain breakage protection device for a heavy-duty flight bar machine as set forth in claim 2, wherein: The surface of the rotating horizontal shaft (311) is fixedly connected with a lock catch bracket (315) in the middle, and the longitudinal section of the lock catch bracket (315) is L-shaped.

5. A chain breakage protection device for a heavy-duty flighting machine as claimed in claim 4, wherein: Two fixed collars (313) are fixedly connected with a fixed cross bar (314), and the fixed cross bar (314) is located above the rotating horizontal shaft (311).

6. A chain breakage protection device for a heavy-duty flight bar machine as set forth in claim 3, wherein: The inner wall of the connecting sleeve (322) is rotatably connected with a connecting cross bar (323), and both ends of the connecting cross bar (323) penetrate to the outside of the connecting sleeve (322).

7. A chain breakage protection device for a heavy-duty flighting machine as claimed in claim 6, wherein: Both sides of the connecting sleeve (322) are provided with a fixed connecting rod (324), and the fixed connecting rod (324) is fixedly connected to the surface of the connecting cross bar (323).

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