Cable dragging and supporting device for coal mining heading machine

Abstract

The utility model belongs to the technical field of coal mining equipment, and particularly relates to a cable dragging and supporting device for a coal mining heading machine, which comprises a U-shaped hanging ring, a connecting bolt is inserted on the U-shaped hanging ring, the connecting bolt is adaptively inserted on a connecting frame, two ends of the connecting frame are provided with buffer components, each buffer component comprises a screw rod, and the bottom end of each screw rod is connected with the connecting frame. The screw penetrates through the connecting base, the spring and the lifting base in a sliding mode and is in threaded connection with the nut, and the roller assembly is rotationally installed on the connecting base and installed on the lower flange of the guide rail in a rolling mode. The buffer assembly can play a role in buffering and energy absorption when the U-shaped hanging ring is subjected to instantaneous acting force of the cable, so that the cable is effectively protected; the buffer assembly is simple in structure and can be conveniently assembled, disassembled and replaced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coal mining equipment technical field, concretely relates to a kind of cable tow support device for coal mining heading machine. BACKGROUND

[0002] The utility model discloses a kind of cable tow support device for coal mining heading machine discloses a kind of can be adjusted and erected according to the height and width of roadway, it is convenient to carry out assembly disassembly by connecting plate cooperation connecting hole, cable tow support device is rolled in the cable slide way using pulley, cable is towed and is retracted and extended.The characteristics are that it includes support assembly for supporting and sliding assembly for cable tow, the sliding assembly is connected with support assembly.The support assembly is composed of bidirectional telescopic rod, support telescopic rod, trundle bracket and track trundle, bidirectional telescopic rod both ends are respectively correspondingly placed support telescopic rod, the bidirectional telescopic rod is placed with fastening bolt, the support telescopic rod one end is connected with bidirectional telescopic rod, the other end is connected with trundle bracket, the support telescopic rod is placed with fastening bolt, track trundle is placed in trundle bracket rotatably by pivot.

[0003] However, the above mechanism has the following problems: the U-shaped slide plate is a rigid structure, when the cable power supply equipment starts to move, the cable is subjected to instantaneous traction force, thereby causing a large friction force between the cable and the cable lifting ring, causing damage to the surface of the cable. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model aims to provide a cable tow support device for coal mining heading machine, which solves the problem of damage to the surface of the cable caused by the lack of buffer design in the existing cable hanger of the coal mining heading machine.

[0005] To achieve the above purpose, the utility model adopts the technical scheme of a cable tow support device for coal mining heading machine, which includes a U-shaped lifting ring, a connecting bolt is inserted into the U-shaped lifting ring, the connecting bolt is adapted to be inserted into a connecting frame, a buffer assembly is installed at both ends of the connecting frame, the buffer assembly includes a screw rod, the bottom end of the screw rod is connected to the connecting frame, the screw rod is slidably connected to a connecting seat and a lifting seat, the screw rod is threadedly connected to a nut, and a spring is sleeved outside the screw rod, the nut and the spring are respectively arranged on the upper and lower sides of the lifting seat, a roller assembly is rotatably installed on the connecting seat, and the roller assembly is rollingly installed on the lower flange of the guide rail.

[0006] The utility model has the advantages that the buffer assembly can buffer and absorb energy when the U-shaped lifting ring is subjected to instantaneous force of the cable, effectively protecting the cable; the buffer assembly has a simple structure and can be conveniently assembled, disassembled and replaced.

[0007] In order to ensure the stability of the roller assembly moving on the guide rail;

[0008] As a further improvement of the above technical solution: the guide rail is an H-shaped steel structure, the roller assembly comprises a support shaft and a bearing, one end of the support shaft is connected to the connecting seat, the bearing is rotatably installed on the outer side of the support shaft, and the axis of the bearing is parallel to the top surface of the lower flange of the guide rail.

[0009] The improved beneficial effect is that the guide rail provides guiding and supporting effect in the front and rear directions for the roller assembly, and the lower flange with the slope can provide stable left and right limiting for the roller assembly to avoid the roller assembly from being detached from the guide rail.

[0010] In order to ensure the stability of the position of the connecting seat;

[0011] As a further improvement of the above technical solution: the lifting seat is a channel steel structure, and the two side flanges of the lifting seat extend to the two sides of the connecting seat.

[0012] The improved beneficial effect is that the connecting seat can be limited by the two side flanges of the lifting seat to avoid the connecting seat from rotating relative to the lifting seat.

[0013] In order to reduce the wear of the screw rod;

[0014] As a further improvement of the above technical solution: the connecting seat is provided with an internal threaded through hole for threadedly connecting a nylon bushing, and the nylon bushing is slidably sleeved on the outer side of the screw rod.

[0015] The improved beneficial effect is that the self-lubricating property of the nylon bushing can reduce the frictional resistance between the screw rod and the connecting seat when the screw rod moves up and down, thereby ensuring reliable use of the screw rod for a long time.

[0016] In order to effectively ensure the stability of the connection between the U-shaped lifting ring and the connecting frame;

[0017] As a further improvement of the above technical solution: the connecting frame is a channel steel structure, the inner side of the connecting frame is welded with a fixing plate, and the fixing plate is provided with a through hole matched with the plug-in connection bolt.

[0018] The improved beneficial effect is that the connecting bolt can be plug-in connected with the fixing plate and the U-shaped lifting ring, thereby ensuring the stability of the connection between the U-shaped lifting ring and the connecting frame.

[0019] In order to further ensure the stability of the connection between the U-shaped lifting ring and the connecting frame;

[0020] As a further improvement of the above technical solution: the number of the fixing plates is two, and the side surface of the fixing plate is slidably connected with the two ends of the U-shaped lifting ring.

[0021] The improved beneficial effect is that the two fixed plates are matched with the head end of the connecting bolt and the nut, avoiding the movement of the U-shaped hanging ring in the axial direction of the connecting bolt.

[0022] In order to ensure the installation stability of the guide rail,

[0023] As a further improvement of the above technical solution: a plurality of groups of through holes are arranged on the upper flange of the guide rail, and the left and right opposite two are a group.

[0024] The improved beneficial effect is that the symmetrically arranged plurality of groups of through holes can stably install the guide rail on the roof of the roadway under the fastening of the anchor bolt.

[0025] The part not involved in the device is the same as or can be realized by the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure of the present application is shown in the figure;

[0027] Figure 2 The structure of the present application is shown in the figure Figure One ;

[0028] Figure 3 The structure of the present application is shown in the figure Figure Two ;

[0029] In the figure: 1, guide rail; 2, roller assembly; 21, support shaft; 22, bearing; 3, buffer assembly; 31, connecting seat; 32, screw; 33, spring; 34, lifting seat; 35, nut; 36, nylon bushing; 4, connecting frame; 41, fixed plate; 5, U-shaped hanging ring; 6, connecting bolt. DETAILED DESCRIPTION

[0030] In order to make those skilled in the art better understand the technical solutions of the present application, the present application will be described in detail below with reference to the drawings, and the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present application.

[0031] Example 1:

[0032] As Figure 1A cable dragging support device for a coal mining machine, comprising a U-shaped lifting ring 5, a connecting bolt 6 inserted on the U-shaped lifting ring 5, the connecting bolt 6 being adapted to be inserted on a connecting frame 4, a buffer assembly 3 being installed at both ends of the connecting frame 4, the buffer assembly 3 comprising a screw rod 32, the bottom end of the screw rod 32 being connected to the connecting frame 4, the screw rod 32 sliding through a connecting seat 31 and a lifting seat 34, the screw rod 32 being threadedly connected to a nut 35 and the outer side of the screw rod 32 being sleeved with a spring 33, the nut 35 and the spring 33 being respectively arranged on the upper and lower sides of the lifting seat 34, a roller assembly 2 being rotatably installed on the connecting seat 31 and being rollingly installed on the lower flange of a guide rail 1, the buffer assembly 3 being able to play a role of buffering and absorbing energy when the U-shaped lifting ring 5 is subjected to instantaneous force of the cable, effectively protecting the cable; the buffer assembly 3 is simple in structure and convenient to disassemble, replace and assemble; the guide rail 1 is an H-shaped steel structure, the roller assembly 2 comprises a supporting shaft 21 and a bearing 22, one end of the supporting shaft 21 being connected to the connecting seat 31, the bearing 22 being rotatably installed on the outer side of the supporting shaft 21, the axis of the bearing 22 being parallel to the top surface of the lower flange of the guide rail 1, the guide rail 1 providing guiding and supporting in the front and back directions for the roller assembly 2, and the lower flange with a slope providing stable left and right limiting for the roller assembly 2, avoiding the roller assembly 2 from being separated from the guide rail 1, the lifting seat 34 being a channel steel structure, the two side flanges of the lifting seat 34 extending to the two sides of the connecting seat 31, the connecting seat 31 being limited by the two side flanges of the lifting seat 34, avoiding the connecting seat 31 from rotating relative to the lifting seat 34, a threaded through hole being formed in the connecting seat 31 and being threadedly connected to a nylon bushing 36, the nylon bushing 36 being slidably sleeved on the outer side of the screw rod 32, the self-lubricating property of the nylon bushing 36 reducing the frictional resistance between the screw rod 32 and the connecting seat 31 when the screw rod 32 moves up and down, thereby ensuring reliable use of the screw rod 32 for a long time, the connecting frame 4 being a channel steel structure, the inner side of the connecting frame 4 being welded with a fixing plate 41, a through hole being formed in the fixing plate 41 and being adapted to be inserted with the connecting bolt 6, the connecting bolt 6 being inserted with the fixing plate 41 and the U-shaped lifting ring 5, ensuring stability of the connection between the U-shaped lifting ring 5 and the connecting frame 4, the number of the fixing plates 41 being two, the side surfaces of the fixing plates 41 being slidably connected to the two ends of the U-shaped lifting ring 5, the two fixing plates 41 being cooperatively connected to the head end of the connecting bolt 6 and the nut, avoiding the U-shaped lifting ring 5 from moving in the axial direction of the connecting bolt 6, a plurality of groups of through holes being formed in the upper flange of the guide rail 1 and being spaced apart from each other in front and back directions, the plurality of groups of through holes being symmetrically formed and being fastened by anchor bolts, thereby stably installing the guide rail 1 on the roof of the roadway.

[0033] The working principle of the technical scheme is as follows: the guide rail 1 is installed on the roadway roof through the anchor bolt, a plurality of structures composed of the roller assembly 2, the buffer assembly 3 and the connecting frame 4 are installed on the lower flange of the guide rail 1, then the cable is placed in the inner side of the U-shaped lifting ring 5, and the connecting bolt 6 is used to connect and lock the U-shaped lifting ring 5 and the connecting frame 4; when the coal mining tunneling machine moves forward, the coal mining tunneling machine drives the cable to move, an oblique downward dragging force is applied to one end of the cable, at this time, the U-shaped lifting ring 5 is driven by the cable to move the connecting frame 4 forward, when the connecting frame 4 moves, the screw rod 32 and the nut 35 drive the lifting seat 34 to move, when the lifting seat 34 moves, the spring 33 is compressed, and the spring 33 pushes the connecting seat 31 to move, so that the roller assembly 2 installed on the connecting seat 31 rolls on the guide rail 1; and when the spring 33 is compressed, the spring 33 can play a role in buffering and shrinking to protect the cable.

[0034] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not only include those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] The principles and embodiments of the application are described in this document, and the above examples are only used to help understand the method and core idea of the application. The above description is only the preferred embodiment of the application. It should be noted that due to the limitation of language expression, there are infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, decorations or changes can be made without departing from the principles of the application, and the above technical features can be combined in an appropriate way; these improvements, decorations, changes or combinations, or the application of the concept and technical scheme of the application to other fields without improvement, shall be regarded as the protection scope of the application.

Claims

1. A cable drag support device for a coal mining machine, characterized by: Including U type lifting ring (5), the U type lifting ring (5) is inserted with connecting bolt (6), the connecting bolt (6) is adapted to be inserted on connecting frame (4), both ends of the connecting frame (4) are provided with buffer assembly (3), the buffer assembly (3) includes screw rod (32), the bottom end of the screw rod (32) is connected with the connecting frame (4), the screw rod (32) is slid through connecting seat (31) and lifting seat (34), the screw rod (32) is threadedly connected with nut (35) and the outer side of the screw rod (32) is sleeved with spring (33), the nut (35) and spring (33) are arranged on the upper and lower sides of the lifting seat (34) respectively, the connecting seat (31) is rotatably provided with roller assembly (2), the roller assembly (2) is rotatably installed on the lower wing of guide rail (1).

2. A cable drag support for a coal mining machine as claimed in claim 1 wherein: The guide rail (1) is H-shaped steel structure, the roller assembly (2) includes support shaft (21) and bearing (22), one end of the support shaft (21) is connected with the connecting seat (31), the bearing (22) is rotatably installed on the outer side of the support shaft (21), and the axis of the bearing (22) is parallel to the top surface of the lower wing of the guide rail (1).

3. A cable drag support for a coal mining machine as claimed in claim 1 wherein: The lifting seat (34) is channel steel structure, and the two side wings of the lifting seat (34) extend to the two sides of the connecting seat (31) in the direction of the connecting seat (31).

4. A cable drag support for a coal mining machine as claimed in claim 1 wherein: The connecting seat (31) is provided with an internal thread through hole for threadedly connecting nylon bushing (36), and the nylon bushing (36) is slidably sleeved on the outer side of the screw rod (32).

5. A cable drag support for a coal mining machine as claimed in claim 1 wherein: The connecting frame (4) is channel steel structure, and the inner side of the connecting frame (4) is welded with fixing plate (41), and the fixing plate (41) is provided with through hole for adapting to insert connecting bolt (6).

6. A cable drag support for a coal mining machine as claimed in claim 5 wherein: The number of the fixing plate (41) is two, and the side surface of the fixing plate (41) is slidably connected with both ends of the U type lifting ring (5).

7. A cable drag support for a coal mining machine as defined in claim 1 wherein: The upper wing of the guide rail (1) is provided with multiple groups of through holes, and each group is composed of two through holes on the left and right sides. The upper wing of the guide rail (1) is provided with multiple groups of through holes, and each group is composed of two through holes on the left and right sides.

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