Transport device connecting mechanism and adjustable transition transport device

Abstract

The application discloses a kind of transport device connection mechanism and adjustable transition transport device, including front connecting plate, middle part hinged connecting piece and rear connecting plate, middle part hinged connecting piece includes vertically hinged front hinged frame and rear hinged frame, front hinged frame is horizontally hinged with front connecting plate, and front connecting plate is used to connect tunneling machine and receive transport mechanism on tunneling machine, one end of rear hinged frame is hinged with the end of scraper conveyor, and the other end is hinged with rear connecting plate through telescopic mechanism, and rear connecting plate is used to connect the bottom of scraper conveyor.The application can change the relative height of rear transport device through connection mechanism, avoid interference collision with belt-type transfer machine when tunneling machine is steeply tunneling, and the relative rotation of two hinged frames in horizontal plane avoids material spilling, material leakage and the problem of being unable to load and transport when tail unloading, and rear hinged frame is hinged with rear connecting plate through telescopic mechanism, which realizes the adjustment of relative ground height of rear transport device and improves the adaptability and feeding efficiency of tunneling machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunneling equipment, in particular to a transport device connecting mechanism and an adjustable transition transport device. BACKGROUND

[0002] The tunneling machine is the main equipment for comprehensive mechanized tunneling operation in coal mines. The existing rear supporting transport mode of the tunneling machine often adopts a belt-type transfer machine and a self-moving tail. The front end of the belt-type transfer machine is connected to the rear end of the tunneling machine rack through a pin shaft hinge, and the rear end is straddled on the self-moving tail through a lap joint trolley. The self-moving tail is connected to the belt conveyor. The coal cut by the tunneling machine is collected by the shovel plate and unloaded to the receiving hopper of the rear lap joint belt-type transfer machine of the self-moving tail. Then the coal is transported to the coal bunker through the subsequent belt conveyor.

[0003] At present, the connecting device of the tunneling machine and the belt-type transfer machine cannot adjust the position and size on the ground. Most of them are fixed, only considering the needs of straight driving and small angle construction of the tunneling machine. The rear supporting transport structure is simple, single, poor in adaptability, low in controllability, low in transport efficiency, and has the following problems: when the tunneling machine changes from horizontal to large slope tunneling operation, the tail of the scraper conveyor collides with the receiving hopper of the belt-type transfer machine; when the tunneling machine frequently moves and turns at a large angle, the tail of the scraper conveyor swings left and right with a large amplitude, which may cause material spilling and leakage. The limitations of the rear supporting connection structure are becoming more and more prominent, and a mechanism is needed to solve the above technical problems. SUMMARY

[0004] The purpose of the present application is to provide a transport device connecting mechanism and an adjustable transition transport device to solve the problems existing in the prior art and make it convenient to connect and adjust the position of the rear transport mechanism during the tunneling machine operation, so as to avoid material spilling and leakage.

[0005] To achieve the above purpose, the present application provides the following scheme:

[0006] The present application provides a transport device connecting mechanism, which comprises a front connecting plate, a middle hinge connecting piece and a rear connecting plate. The middle hinge connecting piece comprises a front hinge frame and a rear hinge frame which are vertically hinged. The front hinge frame is horizontally hinged with the front connecting plate. The front connecting plate is used to connect the tunneling machine and receive the transport mechanism on the tunneling machine. One end of the rear hinge frame is hinged with the end of the scraper conveyor, and the other end is hinged with the rear connecting plate through a telescopic mechanism. The rear connecting plate is used to connect the bottom of the scraper conveyor.

[0007] Preferably, the ear plate extending from the lower end of the front hinge frame is hinged with the ear plate on the front connecting plate through a pin shaft. The two sides of the upper end of the front hinge frame are respectively hinged with the front connecting plate through a hydraulic cylinder. The hydraulic cylinder is located on both sides of the pin shaft.

[0008] Preferably, a pair of ear plates are symmetrically arranged on both sides of the front hinged frame, and the ear plates are symmetrically hinged to the rear hinged frame through a hydraulic cylinder.

[0009] Preferably, the front hinged frame and the rear hinged frame are hinged through two coaxially arranged hinged shafts, a width adjusting mechanism is arranged on the rear hinged frame, the width adjusting mechanism is hinged to both sides of the scraper conveyor, the telescopic mechanism is a hydraulic cylinder, and the rear hinged frame and the rear connecting plate are hinged through two symmetrically arranged hydraulic cylinders.

[0010] Preferably, the width adjusting mechanism comprises telescopic supports, guide telescopic cylinders and hydraulic cylinders, the middle plate of the rear hinged frame is connected to the lower end of a telescopic support through symmetrically arranged guide telescopic cylinders and hydraulic cylinders, and the guide telescopic cylinders and the hydraulic cylinders are arranged in parallel.

[0011] Preferably, the guide telescopic cylinder comprises two outer sleeves and an inner sleeve, the two outer sleeves are connected to the telescopic supports and the middle plate of the rear hinged frame respectively, the two ends of the inner sleeve are sleeved in the outer sleeves respectively, the length of the inner sleeve is not less than the telescopic length of the hydraulic cylinders arranged in parallel, and the telescopic length is 10cm-20cm.

[0012] Preferably, the relative rotation angle between the front hinged frame and the rear hinged frame is at least 45°, the relative rotation angle between the front hinged frame and the front connecting plate is at least 10°, and the relative rotation angle between the scraper conveyor and the rear hinged frame is at least 20°.

[0013] The application further discloses a kind of adjustable transition transport devices, including the transport device of above-mentioned connection mechanism and scraper conveyor, and the scraper conveyor is connected with the rear end of heading machine through the transport device connection mechanism.

[0014] Preferably, a material collecting hopper extending to both sides is arranged on the feeding end of the scraper conveyor, and a chain pressing plate is symmetrically arranged on the sidewall of the scraper conveyor, and the height of the chain pressing plate is 5cm-10cm higher than the material plate of the scraper conveyor.

[0015] Preferably, a hydraulic cylinder is arranged between the driving frame of the scraper conveyor and the sidewall, and the bottom plate of the feeding end of the scraper conveyor is inclined to the middle part of the scraper conveyor by 5°-10°, and the bottom plate is made of wear-resistant material.

[0016] The application has the following technical effects compared with the prior art:

[0017] The application can change the relative height of the rear connected transport device through the connecting mechanism, avoid the collision between the tail of the scraper conveyor on the roadheader and the belt transfer machine during the large slope tunneling operation of the roadheader, realize the relative rotation of the front hinged frame and the rear hinged frame in the horizontal plane, and avoid the problems of material spilling, material leakage and the inability to load and transport during the unloading of the tail of the scraper conveyor on the roadheader. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0019] Fig. 1 It is a top view of the transport device connecting mechanism in the embodiment of the present application.

[0020] Fig. 2 It is a side view of the transport device connecting mechanism in the embodiment of the present application.

[0021] Fig. 3 It is a schematic view of the installation structure of the adjustable transition transport device in the embodiment of the present application.

[0022] Fig. 4 It is a top view of the installation structure of the adjustable transition transport device in the embodiment of the present application.

[0023] Fig. 5 It is a sectional view of the scraper conveyor in the embodiment of the present application.

[0024] Fig. 6 It is a schematic view of the structure of the scraper conveyor in the embodiment of the present application.

[0025] Wherein: 1-roadheader, 2-vehicle-mounted scraper conveyor, 3-transport device connecting mechanism, 4-scraper conveyor, 5-front connecting plate, 6-front hinged frame, 7-rear hinged frame, 8- telescopic support, 9-rear connecting plate, 10-pivot, 11-ear plate, 12-hydraulic cylinder, 13-outer sleeve, 14-inner sleeve, 15-receiving hopper, 16-material plate, 17-pressing chain plate, 18-slope, 19-driving frame, 20-driven sprocket, 21-bottom plate. DETAILED DESCRIPTION

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] The purpose of this invention is to provide a transport device coupling mechanism and an adjustable transition transport device to solve the problems existing in the prior art, so as to facilitate the connection and adjustment of the orientation of the tunneling machine with the rear transport mechanism during the operation of the tunneling machine, and avoid material spillage and leakage.

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Example 1

[0030] like Figs. 1-2 As shown: This embodiment provides a transport device coupling mechanism, including a front connecting plate 5, a middle hinge connector and a rear connecting plate 9. The middle hinge connector includes a vertically hinged front hinge frame 6 and a rear hinge frame. The front hinge frame 6 is horizontally hinged to the front connecting plate 5. The front connecting plate 5 is used to connect the tunneling machine 1 and support the transport mechanism (vehicle-mounted scraper conveyor 2) on the tunneling machine 1. One end of the rear hinge frame is hinged to the end of the scraper conveyor 4, and the other end is hinged to the rear connecting plate 9 through a telescopic mechanism. The rear connecting plate 9 is used to connect to the bottom of the scraper conveyor 4.

[0031] As a preferred embodiment, in this embodiment, the ear plate 11 extending from the lower end of the front hinge frame 6 is hinged to the ear plate 11 on the front connecting plate 5 via a pin 10. The two sides of the upper end of the front hinge frame 6 are respectively hinged to the front connecting plate 5 via a hydraulic cylinder 12, with the hydraulic cylinders 12 located on both sides of the pin 10. In this embodiment, the hinge of the front connecting plate 5 can change the relative height of the transport device connected to the rear, preventing interference and collision between the tail of the vehicle-mounted scraper conveyor 2 of the tunneling machine 1 and the belt conveyor during steep slope tunneling operations. The relative rotation angle between the front hinge frame 6 and the front connecting plate 5 is at least 10°, preferably 13° vertically.

[0032] As a preferred solution, the front hinged frame 6 in the embodiment is symmetrically provided with a pair of ear plates 11, the ear plates 11 are symmetrically hinged with the rear hinged frame 7 through a hydraulic cylinder 12, and the two hydraulic cylinders 12 are located on both sides of the hinge shaft of the front hinged frame 6 and the rear hinged frame 7. Among them, the front hinged frame 6 and the rear hinged frame 7 are hinged through two coaxially arranged hinge shafts, the relative rotation angle of the front hinged frame 6 and the rear hinged frame 7 is at least 45°, preferably 90°, that is, left and right swing each 45°, the extension and retraction amount of the two hydraulic cylinders 12 is controlled, and the left and right rotation of the rear hinged frame relative to the front hinged frame 6 is realized. The extension and retraction mechanism is a hydraulic cylinder 12, which has good pressure bearing capacity. The front hinged frame 6 and the rear hinged frame 7 in the embodiment realize the relative rotation in the horizontal plane, which avoids the problems of material spilling, material leakage and inability to load and transport when the rear end of the truck-mounted scraper conveyor 2 of the heading machine 1 is unloaded.

[0033] As a preferred solution, the rear hinged frame 7 in the embodiment is provided with a width adjusting mechanism, the width adjusting mechanism is hinged on both sides of the scraper conveyor 4, the rear hinged frame 7 and the rear connecting plate 9 are hinged through two symmetrically arranged hydraulic cylinders 12, the relative height adjustment of the tail of the rear conveying device relative to the ground is realized, the diversity of the equipment such as the anchor machine, the shuttle car and the coal truck matched with the heading machine 1 is satisfied, the adaptability and the feeding efficiency of the heading machine 1 operation are improved; the relative rotation angle of the scraper conveyor 4 and the rear hinged frame 7 is at least 20°, preferably the scraper conveyor 4 can swing upward by 25°.

[0034] As a preferred solution, the width adjusting mechanism in the embodiment includes an extension support 8, a guide extension cylinder and a hydraulic cylinder 12, the middle plate of the rear hinged frame 7 is connected with the lower end of an extension support 8 through symmetrically arranged guide extension cylinders and hydraulic cylinders 12, and the guide extension cylinders and the hydraulic cylinders 12 are arranged in parallel. Among them, the guide extension cylinder includes two outer sleeves 13 and an inner sleeve 14, the two outer sleeves 13 are connected to the extension support 8 and the middle plate of the rear hinged frame 7 respectively, the two ends of the inner sleeve 14 are sleeved in the outer sleeves 13 respectively, and the length of the inner sleeve 14 is not less than the extension length of the parallel arranged hydraulic cylinder 12, the extension length is 10cm-20cm, the movement of the hydraulic cylinder 12 is parallel guided, and the reliability of the connection is increased. The width adjusting mechanism can drive the extension support 8 to move through the extension and retraction of the hydraulic cylinder 12, so as to adapt to the scraper conveyor 4 with different widths, and various conveying devices can be matched in the rear.

[0035] Embodiment two

[0036] As shown in Figs. 2-6 The application also discloses a width-adjustable transition conveying device, which comprises the conveying device connecting mechanism 3 and the scraper conveyor 4.

[0037] As a preferred solution, the feeding end of the scraper conveyor 4 in the embodiment is provided with a material collecting hopper 15 extending to both sides, and symmetrical pressure chain plates 17 are arranged on the side walls 18 of the scraper conveyor 4, the distance between the pressure chain plates 17 and the material plate 16 of the scraper conveyor 4 is 5-10 cm, and the pressure chain plates 17 are located above the chain to ensure that the chain does not jam and deviate. A hydraulic cylinder 12 is arranged between the driving frame 19 of the scraper conveyor 4 and the side wall 18 on each side, and the bottom plate 21 of the feeding end (the end of the driven sprocket 20) of the scraper conveyor 4 is inclined to the middle part of the scraper conveyor 4 by 5-10°, and the bottom plate 21 is made of wear-resistant material, which can be nm360 mine wear-resistant steel or chrome steel plate. The height of the scraper conveyor 4 is 80 cm, and the length is generally not more than 5 m, which is not too long to avoid interference with the roadway, and plays a role in height adjustment and material buffering and transition transportation; the hydraulic cylinder 12 drives the front and rear movement of the driving frame 19 as a tensioning component, so that the chain can be adjusted to be tensioned and relaxed, which avoids problems such as excessive wear of the sprocket and chain caused by too tight chain, and improves the service life of the chain; the pressure chain plate 17 is arranged to press the chain throughout the conveying process, which can effectively avoid the jamming and chain jumping caused by too loose chain; the inclined arrangement of the bottom plate 21 can lift the sagging chain upwards, and at the same time, increase the meshing degree of the chain and the lower end of the driven sprocket 20 to avoid chain disengagement. The other structures of the scraper conveyor 4 are the same as those of the conventional scraper conveyor, and the specific structure will not be described here.

[0038] In the embodiment, the relative height of the hitching device can be changed by the extension and retraction of each hydraulic cylinder 12 in the hitching mechanism 3 of the conveying device, which avoids the interference and collision between the tail of the vehicle-mounted scraper conveyor 2 of the roadheader 1 and the belt-type transfer machine during the large-slope tunneling operation of the roadheader 1; the left and right rotation of the two articulated frames is realized, which avoids the problems of material spilling, material leakage and the inability to load and transport during the unloading of the tail of the vehicle-mounted scraper conveyor 2 of the roadheader 1; the adjustment of the relative height of the tail of the rear scraper conveyor 4 to the ground is realized, which meets the requirements of the diversity of continuous transportation of the roadheader 1 with rear-mounted anchor transporters, shuttle cars, coal transporters and other equipment, and improves the adaptability and efficiency of the roadheader 1 operation. The embodiment can be directly installed at the rear of various roadheaders 1 with vehicle-mounted scraper conveyors 2, which solves the problems of single rear-mounted transfer and poor adaptability and low controllability of the existing roadheaders 1, and cannot meet the requirements of large-angle turning, slope changing and rear-mounted transportation diversification, and can be applied to the transfer of anchor transporters, shuttle cars and coal transporters, and improves the operation efficiency.

[0039] The principles and implementation modes of the present application are described in the specification by applying specific examples, and the above description of the embodiments is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, the specific implementation modes and application ranges will be changed according to the idea of the present application. In view of the above, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A coupling mechanism for a transport device, characterized by: The device comprises a front connecting plate, a middle articulated connecting piece and a rear connecting plate, the middle articulated connecting piece comprises vertically articulated front and rear articulated frames, the front articulated frame is horizontally articulated with the front connecting plate, the front connecting plate is used for connecting a tunneling machine and receiving a transport mechanism on the tunneling machine, one end of the rear articulated frame is articulated with an end of a scraper conveyor, the other end is articulated with the rear connecting plate through a telescopic mechanism, and the rear connecting plate is used for connecting a bottom of the scraper conveyor. The front articulated frame and the rear articulated frame are articulated through two coaxially arranged articulated shafts, a width adjusting mechanism is arranged on the rear articulated frame, the width adjusting mechanism is articulated on both sides of the scraper conveyor, the telescopic mechanism is a hydraulic cylinder, and the rear articulated frame is articulated with the rear connecting plate through two symmetrically arranged hydraulic cylinders. The width adjusting mechanism comprises telescopic supports, guide telescopic cylinders and hydraulic cylinders, the middle plate of the rear articulated frame is connected with the lower ends of the telescopic supports through the symmetrically arranged guide telescopic cylinders and hydraulic cylinders, and the guide telescopic cylinders and the hydraulic cylinders are arranged in parallel.

2. The coupling mechanism according to claim 1, wherein: The ear plates extending from the lower end of the front articulated frame are articulated with the ear plates on the front connecting plate through a pin shaft, the two sides of the upper end of the front articulated frame are respectively articulated with the front connecting plate through a hydraulic cylinder, and the hydraulic cylinder is located on both sides of the pin shaft.

3. The coupling mechanism according to claim 1, wherein: A pair of ear plates is symmetrically arranged on the two sides of the front articulated frame, the ear plates are respectively symmetrically articulated with the rear articulated frame through a hydraulic cylinder, and the two hydraulic cylinders are located on both sides of the articulated shaft of the front articulated frame and the rear articulated frame.

4. The coupling mechanism according to claim 1, wherein: The guide telescopic cylinder comprises two outer sleeves and an inner sleeve, the two outer sleeves are respectively connected to the telescopic supports and the middle plate of the rear articulated frame, the two ends of the inner sleeve are respectively sleeved in the outer sleeves, the length of the inner sleeve is not less than the telescopic length of the parallel hydraulic cylinders, and the telescopic length is 10cm-20cm.

5. The coupling mechanism according to claim 1, wherein: The relative rotation angle of the front articulated frame and the rear articulated frame is at least 45°, the relative rotation angle of the front articulated frame and the front connecting plate is at least 10°, and the relative rotation angle of the scraper conveyor and the rear articulated frame is at least 20°.

6. An adjustable transition transport device, characterized by: The device comprises the transport device connecting mechanism and the scraper conveyor, and the scraper conveyor is connected with the rear end of the tunneling machine through the transport device connecting mechanism.

7. The adjustable transition transport apparatus of claim 6, wherein: A material collecting hopper extending to both sides is arranged on the feeding end of the scraper conveyor, and chain pressing plates are symmetrically arranged on the sidewalls of the scraper conveyor and are higher than the material plates of the scraper conveyor by 5cm-10cm.

8. The adjustable transition transport apparatus of claim 6, wherein: A hydraulic cylinder is arranged between the driving frame and the sidewall of the scraper conveyor, the bottom plate of the feeding end of the scraper conveyor is inclined to the middle part of the scraper conveyor by 5°-10°, and the bottom plate is made of wear-resistant material.

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