Adjustable telescopic tail type scraper conveyor

Abstract

The utility model discloses an adjustable telescopic tail type scraper conveyor, and relates to the technical field of scraper conveyors. The adjustable telescopic tail type scraper conveyor comprises tail frames and a baffle, an adjusting device is arranged between the two tail frames and comprises an expansion unit and an adjusting unit, the expansion unit comprises a mounting seat, a hinge shaft is arranged on the mounting seat, hinge rods for adjusting angles are correspondingly arranged at the two ends of the hinge shaft, and the adjusting unit is arranged on the baffle. The other ends of the hinge rods are connected with fixing rods used for fixing, the fixing rods are installed on an installation rod, and a roller assembly is arranged above the installation rod. The axial direction and the radial direction of the roller assembly are integrally changed through the expansion unit, and the roller assembly is not moved at the installation position of the tail frame, so that the situation that conveyed materials are subjected to acceleration due to adjustment when a chain is damaged or the fastening force is not enough is avoided, and adjustment can still be completed when the scraper conveyor conveys materials; stop of the whole conveying line is not prone to being caused, and the whole adjusting mechanism is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper conveyors, in particular to an adjustable telescopic tail type scraper conveyor. Background Art

[0002] The conveyor that uses a scraper chain to transport bulk materials in a trough is called a scraper conveyor. In the current coal mining face, the role of the scraper conveyor is not only to transport coal and materials, but also to serve as the running track of the coal mining machine. Therefore, it has become an indispensable main equipment in the modern coal mining process.

[0003] The existing scraper conveyor has a single function and cannot record the displacement data of the telescopic joint and the tension data of the chain. It is difficult for the user to control the advancement distance when operating the hydraulic cylinder, which may easily lead to chain damage or insufficient tightening force. For example, an intelligent adjustable telescopic tail scraper conveyor disclosed in Chinese Patent Publication No. CN219928725U has an adjustment mechanism in the device body. The tail scraper conveyor controls the roller assembly through the hydraulic cylinder and the telescopic joint, which can effectively tighten the chain without manual operation, avoiding the time and energy required for disassembly, saving time and effort and improving work efficiency. At the same time, the hydraulic cylinder oil pressure index and the chain tension index can be observed in real time, which is convenient for adjustment at any time, avoiding over-tightening or under-tightening, and increasing the reliability and accuracy of the device;

[0004] First of all, the above-mentioned adjustment mechanism uses the propulsion of the hydraulic cylinder to drive the overall movement of the roller assembly, pushing forward when the chain is loose and retracting when the chain is tight to complete the adjustment. However, it cannot be ignored that when the chain is pulling the scraper for transportation, the movement of its roller assembly can easily cause the entire conveyor line to stop, because the movement of the roller assembly will pull the corresponding scraper to move horizontally, thus easily causing the material being transported to suddenly accelerate. This situation means that the device is only effective when the conveyor line is stopped. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an adjustable telescopic tail scraper conveyor, which solves the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: an adjustable telescopic tail scraper conveyor, comprising a tail frame and a baffle fixedly installed on the top of the tail frame for protection, the tail frame and the baffle are both provided with two groups, an adjustment device is provided between the two groups of the tail frames, the adjustment device comprises an expansion unit and an adjustment unit, and the expansion unit is installed on the adjustment unit;

[0007] The expansion unit includes several groups of mounting seats distributed in an array on the adjustment unit for installation, and several groups of the mounting seats are each provided with a hinge shaft, and both ends of each of the hinge shafts are correspondingly provided with hinge rods for adjusting the angle, and the other end of each of the hinge rods is connected to a fixing rod for fixation, and each of the fixing rods is installed on the mounting rod, and a roller assembly is arranged above the mounting rod.

[0008] The further improvement of the technical solution of the utility model is that: a plurality of the mounting seats are welded to the adjustment unit, and each mounting seat is hinged to the corresponding hinged rod through the hinge shaft thereon, each hinged rod is limitedly plugged with its corresponding fixed rod, and the mounting rod is welded to each group of fixed rods. The utility model makes the axial and radial directions of the roller assembly change as a whole through the expansion unit and does not move the roller assembly at the tail frame installation position, so as to avoid the acceleration of the transported material caused by the adjustment when the chain is damaged or the tightening force is insufficient, so that the scraper conveyor can still complete the adjustment during transportation, and it is not easy to cause the overall conveying line to stop, making the overall adjustment mechanism more stable.

[0009] The further improvement of the technical solution of the utility model is that: the adjustment unit includes a threaded rod for adjusting the expansion range and the expansion position, and the threaded rod is provided with two adjustment cylinders for installing the expansion unit, one of which is used to install the mounting seat and is threadedly connected to the threaded rod by setting a thread, and one end of the adjustment cylinder is provided with a positioning abutment disk, and the positioning abutment disk is key-connected to the threaded rod through a connecting key, and the other adjustment cylinder is fixedly connected to the threaded rod. It should be noted that in the process of adjusting the expansion of the expansion unit, the adjustment cylinder threadedly connected to the threaded rod moves forward and backward due to the threaded connection, and in the process of moving, because of the connection between the fixed rod and the mounting rod, the hinge rod and the hinge shaft rotate, and finally pull the mounting rod and the roller assembly thereon to expand outward or inward; under this premise, in order to avoid passive expansion caused by the roller assembly rotating with the other adjustment cylinder and the threaded rod when no adjustment is required, the key connection positioning abutment disk is used, and the positioning abutment disk can be directly moved to abut one of the adjustment cylinders due to the key connection.

[0010] The utility model completes the adjustment control of the chain rotation on the scraper conveyor through the adjustment unit, avoids the movement conflict between the roller assembly and the expansion unit when no adjustment is needed, ensures the rapid adjustment of the chain when it becomes loose or tight during the conveying process, and makes the overall device more adaptable and compatible.

[0011] The further improvement of the technical solution of the utility model is that: a plurality of groups of linkage seats are arranged in an array on the other adjusting cylinder, each linkage seat is provided with a linkage shaft, linkage rods are symmetrically provided at both ends of each linkage shaft, and the other end of each linkage rod is limitedly connected to the installation rod through a positioning rod. Preferably, the positioning rod connected to the linkage rod is driven by the installation rod that is contracted or expanded by the hinge shaft and the hinge rod during the movement of the adjusting cylinder because it is connected to the installation rod. Such a design ensures stability during expansion, so that both ends of the installation rod are supported accordingly.

[0012] A further improvement of the technical solution of the utility model is that a guide frame is arranged at the other end of the threaded through rod, the guide frame is provided with guide grooves corresponding to the number of linkage seats and mounting seat groups, a guide block is arranged in the guide groove, the mounting rod is installed on the guide block, and the roller assembly is installed on the guide block.

[0013] A further improvement of the technical solution of the utility model is that the guide frame is fixedly connected to the threaded through rod, and the guide frame is slidably connected to the guide block through a guide groove, the mounting rod is limitedly mounted on the guide block by a fastener, and the guide block is connected to the roller assembly.

[0014] Beneficial Effects

[0015] The utility model provides an adjustable telescopic tail scraper conveyor. Compared with the prior art, it has the following beneficial effects:

[0016] 1. The adjustable telescopic tail scraper conveyor changes the axial and radial directions of the roller assembly as a whole through the expansion unit, and does not move the roller assembly at the tail frame installation position, so as to avoid the acceleration of the transported materials caused by the adjustment when the chain is damaged or the tightening force is insufficient, so that the scraper conveyor can still complete the adjustment during transportation, and it is not easy to cause the overall conveying line to stop, making the overall adjustment mechanism more stable.

[0017] 2. The adjustable telescopic tail scraper conveyor completes the adjustment control of the chain rotation on the scraper conveyor through the adjustment unit, avoiding the movement conflict between the roller assembly and the expansion unit when no adjustment is needed, ensuring the rapid adjustment of the chain when it becomes loose or tight during the conveying process, making the overall device more adaptable and compatible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is a schematic diagram of an expansion unit of the utility model;

[0020] Figure 3 is a schematic diagram of an expansion unit of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the regulating unit of the utility model.

[0022] In the figure: 101, tail frame; 102, baffle; 201, mounting seat; 202, hinge shaft; 203, hinge rod; 204, fixing rod; 205, mounting rod; 206, roller assembly; 207, linkage seat; 208, linkage shaft; 209, linkage rod; 210, positioning rod; 301, threaded through rod; 302, adjusting cylinder; 303, positioning abutment plate; 304, guide frame; 305, guide groove; 306, guide block. DETAILED DESCRIPTION

[0023] 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.

[0024] The utility model provides three technical solutions:

[0025] Figure 1-3 The first embodiment is shown: an adjustable telescopic tail scraper conveyor, comprising a tail frame 101 and a baffle 102 fixedly mounted on the top of the tail frame 101 for protection, the tail frame 101 and the baffle 102 are both provided with two groups, an adjustment device is provided between the two groups of tail frames 101, the adjustment device comprises an expansion unit and an adjustment unit, and the expansion unit is mounted on the adjustment unit;

[0026] The expansion unit includes several groups of mounting seats 201 for installation, which are distributed in an array on the adjustment unit. Several groups of mounting seats 201 are each provided with a hinge shaft 202. Both ends of each hinge shaft 202 are provided with a corresponding hinge rod 203 for adjusting the angle. The other end of each hinge rod 203 is connected to a fixing rod 204 for fixing. Each fixing rod 204 is installed on a mounting rod 205. A roller assembly 206 is provided above the mounting rod 205.

[0027] Several mounting seats 201 are welded to the adjustment unit, and each mounting seat 201 is hinged to the corresponding hinge rod 203 through the hinge shaft 202 thereon, each hinge rod 203 is limitedly plugged with its corresponding fixed rod 204, and the mounting rod 205 is welded to each group of fixed rods 204. The utility model makes the axial and radial directions of the roller assembly 206 change as a whole through the expansion unit, and does not move the roller assembly 206 at the installation position of the tail frame 101, so as to avoid the adjustment when the chain is damaged or the tightening force is insufficient, resulting in the acceleration of the transported material, so that the scraper conveyor can still complete the adjustment during transportation, and it is not easy to cause the overall conveying line to stop, making the overall adjustment mechanism more stable.

[0028] Figure 1-2 4 shows a second embodiment, which mainly differs from the first embodiment in that the adjustment unit includes a threaded rod 301 for adjusting the expansion range and the expansion position, and the threaded rod 301 is provided with two adjustment cylinders 302 for installing the expansion unit, one of the adjustment cylinders 302 is used to install the mounting seat 201 and is threadedly connected to the threaded rod 301 by setting a thread, and one end of the one adjustment cylinder 302 is provided with a positioning abutment disk 303, and the positioning abutment disk 303 is key-connected to the threaded rod 301 through a connecting key, and the other adjustment cylinder 302 is fixedly connected to the threaded rod 301. It should be noted that during the process of adjusting and expanding the expansion unit, the adjusting cylinder 302 threadedly connected to the threaded through rod 301 moves forward and backward due to the threaded connection, and during the movement, due to the connection between the fixed rod 204 and the mounting rod 205, the hinge rod 203 and the hinge shaft 203 rotate, and finally pull the mounting rod 205 and the roller assembly 206 thereon to expand outward or inward; under this premise, in order to avoid passive expansion due to the rotation of the roller assembly 206 with the other adjusting cylinder 302 and the threaded through rod 301 when adjustment is not required, the key-connected positioning abutment plate 203 can be directly moved to abut one of the adjusting cylinders 302 due to the key connection.

[0029] The utility model completes the adjustment control of the chain rotation on the scraper conveyor through the adjustment unit, avoiding the movement conflict between the roller assembly 206 and the expansion unit when no adjustment is needed, ensuring the rapid adjustment of the chain when it becomes loose or tight during the conveying process, making the overall device more adaptable and compatible.

[0030] A plurality of linkage seats 207 are arranged in an array on the other adjustment cylinder 302, and a linkage shaft 208 is provided on each linkage seat 207. Linkage rods 209 are symmetrically provided at both ends of each linkage shaft 208, and the other end of each linkage rod 209 is limitedly connected to the installation rod 205 through a positioning rod 210. Preferably, the positioning rod 210 connected to the linkage rod 209 is connected to the installation rod 205, and the installation rod 205 that is contracted or expanded by the hinge shaft 202 and the hinge rod 203 drives the connected positioning rod 210 during the movement of the adjustment cylinder 302. Such a design ensures stability during expansion, so that both ends of the installation rod 205 are supported accordingly.

[0031] Figure 1 and 4 A third embodiment is shown, which mainly differs from the first embodiment in that a guide frame 304 is provided at the other end of the threaded rod 301, and a guide groove 305 corresponding to the number of linkage seats 207 and mounting seats 201 is provided on the guide frame 304, a guide block 306 is provided in the guide groove 305, the mounting rod 205 is installed on the guide block 306, and the roller assembly 206 is installed on the guide block 306.

[0032] The guide frame 304 is fixedly connected to the threaded through rod 301 , and the guide frame 304 is slidably connected to the guide block 306 through the guide groove 305 , the mounting rod 205 is limitedly installed on the guide block 306 by fasteners, and the guide block 306 is connected to the roller assembly 206 .

[0033] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0034] When in use, if the chain of the scraper conveyor becomes loose, the conveying speed is reduced. At this time, the positioning abutment plate 303 is moved to cancel the abutment on the adjusting cylinder 302. At this time, the adjusting cylinder 302 thereon is pushed forward by the rotation of the threaded through rod 301, and during the movement, due to the connection between the fixed rod 204 and the mounting rod 205, the hinged rod 203 and the hinged shaft 203 rotate. At this time, the positioning rod 210 connected to the linkage rod 209 is connected to the mounting rod 205. During the movement of the adjusting cylinder 302, the mounting rod 205 expanded by the hinged shaft 202 and the hinged rod 203 drives the connected positioning rod 210, and finally pulls the mounting rod 205 and the roller assembly 206 thereon to expand outward. On the contrary, the adjusting cylinder 302 moves backward. After the chain adjustment is completed, the positioning abutment plate 303 is reset, and the conveying speed is restored to the original speed.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. 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 these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable telescopic tail scraper conveyor, comprising a tail frame (101) and a baffle (102) fixedly mounted on the top of the tail frame (101) for protection, characterized in that: The tail frame (101) and the baffle (102) are each provided with two groups, and an adjustment device is provided between the two groups of the tail frames (101), the adjustment device comprising an expansion unit and an adjustment unit, and the expansion unit is installed on the adjustment unit; The expansion unit comprises a plurality of groups of mounting seats (201) distributed in an array on the adjustment unit for mounting, each of the groups of mounting seats (201) is provided with a hinge shaft (202), both ends of each of the hinge shafts (202) are provided with corresponding hinge rods (203) for adjusting the angle, the other end of each of the hinge rods (203) is connected to a fixing rod (204) for fixing, each of the fixing rods (204) is installed on a mounting rod (205), and a roller assembly (206) is provided above the mounting rod (205).

2. The adjustable telescopic tail scraper conveyor according to claim 1, characterized in that: A plurality of the mounting seats (201) are welded to the adjustment unit, and each of the mounting seats (201) is hinged to a corresponding hinged rod (203) via a hinge shaft (202) thereon, each hinged rod (203) is limitedly plugged with a corresponding fixed rod (204), and the mounting rod (205) is welded to each group of fixed rods (204).

3. The adjustable telescopic tail scraper conveyor according to claim 1, characterized in that: The adjustment unit comprises a threaded rod (301) for adjusting the expansion range and the expansion position. The threaded rod (301) is provided with two adjustment cylinders (302) for installing the expansion unit. One of the adjustment cylinders (302) is used to install the mounting seat (201) and is threadedly connected to the threaded rod (301) by setting a thread. One end of the adjustment cylinder (302) is provided with a positioning abutment disk (303). The positioning abutment disk (303) is key-connected to the threaded rod (301) by a connecting key. The other adjustment cylinder (302) is fixedly connected to the threaded rod (301).

4. The adjustable telescopic tail scraper conveyor according to claim 3 is characterized in that: A plurality of linkage seats (207) are arranged in an array on the other adjusting cylinder (302), each linkage seat (207) is provided with a linkage shaft (208), linkage rods (209) are symmetrically provided at both ends of each linkage shaft (208), and the other end of each linkage rod (209) is limitedly connected to the mounting rod (205) through a positioning rod (210).

5. The adjustable telescopic tail scraper conveyor according to claim 4, characterized in that: A guide frame (304) is provided at the other end of the threaded through rod (301), and a guide groove (305) corresponding to the number of linkage seats (207) and mounting seats (201) is provided on the guide frame (304), and a guide block (306) is provided in the guide groove (305), the mounting rod (205) is mounted on the guide block (306), and the roller assembly (206) is mounted on the guide block (306).

6. The adjustable telescopic tail scraper conveyor according to claim 5, characterized in that: The guide frame (304) is fixedly connected to the threaded through rod (301), and the guide frame (304) is slidably connected to the guide block (306) through the guide groove (305), the mounting rod (205) is limitedly mounted on the guide block (306) through a fastener, and the guide block (306) is connected to the roller assembly (206).

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