Bracket connector assembly capable of preventing scraper conveyor from warping

Abstract

The utility model discloses a support connector assembly for preventing a scraper conveyor from tilting, which belongs to the technical field of coal mining equipment and comprises a connecting assembly, the connecting assembly comprises a first-stage connector hinged with a hydraulic support and a second-stage connector hinged with the scraper conveyor, and the front end of the first-stage connector is hinged with the hydraulic support through a vertical pin shaft I; the rear end of the secondary connector is hinged with the scraper conveyor through a transverse pin shaft II; the rear end of the first-stage connector is hinged to the front end of the second-stage connector through a third transverse pin shaft, and rotation of the first-stage connector and the second-stage connector in the vertical direction is formed. The first-stage connector and the second-stage connector are matched in a hinged mode to form a two-section connector combination, and due to the fact that the first-stage connector and the second-stage connector can rotate relatively in the vertical direction after being hinged, the swing amplitude of the scraper conveyor and the hydraulic support in the vertical direction is improved, and the phenomenon that the scraper conveyor and the hydraulic support are prone to falling off when encountering a large working face inclination angle is avoided. And the phenomenon of clamping caused by head warping is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mining equipment, in particular to a head-tilt bracket connector assembly for a scraper-proof conveyor. Background Art

[0002] A scraper conveyor uses a scraper chain to pull bulk materials through a trough. A scraper conveyor whose adjacent central troughs can bend within a limited range in both the horizontal and vertical planes is called a flexible scraper conveyor. The operating principle of a scraper conveyor is that an open chute serves as a support for coal, gangue, or other materials, while scrapers are attached to a chain (forming a scraper chain) as the traction element. When the head transmission unit is activated, it drives the sprocket on the head shaft to rotate, causing the scraper chain to circulate, moving the material along the chute until it is unloaded at the head of the conveyor. The scraper chain then loops around the sprocket in a stepless closed loop, completing the material conveyance.

[0003] The scraper conveyor and hydraulic support of the coal mine recovery working face are connected by a connector. When the hydraulic support pushing mechanism is extended, the scraper conveyor is pushed forward through the connector to realize the pushing and sliding action. However, when there are problems such as complex geological conditions of the recovery working face, defects in the matching of the three machines, and defects in the design of the hydraulic support pushing mechanism, it is easy to cause abnormal pushing and sliding action, that is, the scraper conveyor deflects and warps. Therefore, it is necessary to solve the problem of scraper conveyor deflection and warping by adjusting the design of the connector and improving the thrust direction of the pushing mechanism. The existing scraper conveyor and hydraulic support are connected by a cast connector and a pin shaft. The up and down swing amplitude of the connector is small. When the recovery working face has a large inclination angle, it is easy to cause one side of the scraper conveyor to tilt or get stuck. Utility Model Content

[0004] In order to solve the problem of warping or jamming of the scraper conveyor caused by a large inclination angle of the mining working face during the advancement process, the utility model provides an anti-warping bracket connector assembly for the scraper conveyor.

[0005] The utility model is realized through the following technical solutions:

[0006] A connection head assembly of a head-lift bracket of an anti-scraper conveyor, comprising a connection assembly, wherein the connection assembly comprises a first connection head hinged to the hydraulic support and a second connection head hinged to the scraper conveyor, the front end of the first connection head being hinged to the hydraulic support through a vertical pin shaft 1, forming a first connection head that rotates horizontally around the hydraulic support; the rear end of the second connection head being hinged to the scraper conveyor through a horizontal pin shaft 2, forming a second connection head that rotates vertically around the scraper conveyor; the rear end of the first connection head and the front end of the second connection head being hinged through a horizontal pin shaft 3, forming a first connection head and a second connection head that rotate vertically.

[0007] The articulated connection between the first-stage connecting head and the second-stage connecting head forms a two-section connecting head combination. Since the first-stage connecting head and the second-stage connecting head can rotate relative to each other in the vertical direction after being articulated, the vertical swing amplitude of the scraper conveyor and the hydraulic support is improved, avoiding the jamming caused by the tilting of the head when encountering a large working surface inclination angle.

[0008] A further improvement of the present invention is that the front and rear ends of the first-stage connector are respectively provided with a first-stage coupling hole a for cooperating with pin one and a first-stage coupling hole b for cooperating with pin two, with the axis of the first-stage coupling hole b corresponding horizontally to the upper portion of the first-stage coupling hole a. The front and rear ends of the second-stage connector are respectively provided with a second-stage coupling hole a for cooperating with pin three and a second-stage coupling hole b for cooperating with pin two, with the axis of the second-stage coupling hole b being coplanar with the axis of the second-stage coupling hole a. This facilitates the articulated steering of the first and second-stage connectors.

[0009] A further improvement of the present invention is that the top surface of the rear end portion of the first-level connector is higher than the top surface of the front end portion of the first-level connector.

[0010] A further improvement of the present invention is that the top surface of the rear end of the primary connector is inclined at an obtuse angle. In the initial state, the top surface of the secondary connector and the inclined surface of the primary connector are coplanar. This facilitates the rotation of the secondary connector about the pin when encountering a working surface with a large inclination angle, reducing the chance of jamming.

[0011] A further improvement of the present invention is that the primary connector includes a primary connecting lug a and a primary connecting lug b, and the secondary connector includes a secondary connecting lug a and a secondary connecting lug b. Both the primary connecting lug b and the secondary connecting lug b are C-shaped structures with their openings facing one side of the scraper conveyor. During assembly, the secondary connecting lug a is located within the opening of the primary connecting lug b. This helps to enhance structural stability and optimize the force transmission path.

[0012] A further improvement of the present invention is that the middle parts of the openings of the first-level connecting ear a and the first-level connecting ear b are arranged opposite to each other, and the middle parts of the openings of the second-level connecting ear a and the second-level connecting ear b are arranged opposite to each other.

[0013] A further improvement of the present invention is that the first pin, the second pin and the third pin are all threaded pin assemblies.

[0014] It can be seen from the above technical solution that the beneficial effect of the present invention is that the hinged cooperation of the first-level connecting head and the second-level connecting head forms a two-section connecting head combination, and since the first-level connecting head and the second-level connecting head can rotate relative to each other in the vertical direction after being hinged, the vertical swing amplitude of the scraper conveyor and the hydraulic support is improved, avoiding the jamming caused by the warping of the head when encountering a large working surface inclination angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the connection structure between the hydraulic support and the scraper conveyor in the prior art.

[0017] Figure 2 This is a schematic diagram of the scraper conveyor according to a specific embodiment of the present invention cooperating with the connector assembly in the initial state on a working surface with a large inclination angle.

[0018] Figure 3 This is a schematic diagram of a scraper conveyor according to a specific embodiment of the present invention after overcoming deviation and warping.

[0019] Figure 4 This is a first schematic diagram of a connector assembly according to a specific embodiment of the present invention.

[0020] Figure 5 This is a second schematic diagram of a connector assembly according to a specific embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of a first-level connector of a connector assembly according to a specific embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of a secondary connector of a connector assembly according to a specific embodiment of the present invention.

[0023] In the accompanying drawings: 1. Hydraulic support; 2. Scraper conveyor; 3. First-level connecting head; 31. First-level connecting ear a; 32. First-level connecting ear b; 33. First-level coupling hole a; 34. First-level coupling hole b; 4. Second-level connecting head; 41. Second-level connecting ear a; 42. Second-level connecting ear b; 43. Second-level coupling hole a; 44. Second-level coupling hole b; 5. Pin one; 6. Pin two; 7. Pin three. DETAILED DESCRIPTION

[0024] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0025] like Figure 2-7 As shown, a connection head assembly for a scraper conveyor tilting support includes a connection assembly, wherein the connection assembly includes a primary connection head 3 hinged to a hydraulic support 1 and a secondary connection head 4 hinged to a scraper conveyor 2. The scraper conveyor 2, the secondary connection head 4, the primary connection head 3, and the hydraulic support 1 are hingedly arranged in sequence. The primary connection head 3 includes a primary connection ear a31 and a primary connection ear b32, and the secondary connection head 4 includes a secondary connection ear a41 and a secondary connection ear b42. The primary connection ear b32 and the secondary connection ear b42 are both C-shaped structures with their openings facing the side of the scraper conveyor 2. During assembly, the secondary connection ear a41 is located within the opening of the primary connection ear b32. The primary connection ear a31 and the primary connection ear b32 are arranged in the middle of the opening relative to each other, and the secondary connection ear a41 and the secondary connection ear b42 are arranged in the middle of the opening relative to each other. The connecting ear of the scraper conveyor 2 extends into the opening of the secondary connecting ear b42, and the primary connecting ear a31 extends into the connecting ear of the hydraulic support 1; this helps to improve structural stability and optimize the force transmission path.

[0026] like Figure 4-7 As shown, the front and rear ends of the primary connector 3 are respectively provided with a primary coupling hole a33 for mating with pin 1 5 and a primary coupling hole b34 for mating with pin 2 6. The axis of primary coupling hole b34 corresponds horizontally with the upper portion of primary coupling hole a33. The front and rear ends of the secondary connector 4 are respectively provided with a secondary coupling hole a43 for mating with pin 3 7 and a secondary coupling hole b44 for mating with pin 2 6. The axis of secondary coupling hole b44 is coplanar with the axis of secondary coupling hole a43. This facilitates the articulated steering of the primary and secondary connectors 3 and 4.

[0027] like Figure 2-3 As shown, the coupling hole on the connecting ear of the scraper conveyor 2 is a slotted hole structure, and the longitudinal direction of the slotted hole is inclined. This helps to form a buffer when the scraper conveyor 2 is pushed, and also when the inclination angle is large, the secondary connecting ear is pushed in the reverse direction to flip upward around the front end.

[0028] like Figure 2-7As shown, the front end of the first-level connector 3 is hinged to the hydraulic support 1 through a vertical pin shaft 5, so that the first-level connector 3 rotates around the hydraulic support 1 in the horizontal direction; the rear end of the second-level connector 4 is hinged to the scraper conveyor 2 through a horizontal pin shaft 2 6, so that the second-level connector 4 rotates around the scraper conveyor 2 in the vertical direction; the rear end of the first-level connector 3 and the front end of the second-level connector 4 are hinged through a horizontal pin shaft 3 7, so that the first-level connector 3 and the second-level connector 4 rotate in the vertical direction.

[0029] like Figure 5-6 As shown, the top surface of the rear end of the primary connector 3 is higher than the top surface of the front end of the primary connector 3; the top surface of the rear end of the primary connector 3 is inclined, and the angle of inclination of the top surface of the primary connector 3 is obtuse. In the initial state, the top surface of the secondary connector 4 is coplanar with the inclined surface of the primary connector 3. When encountering a working surface with a large inclination angle, the secondary connector 4 can easily rotate around the pin 7, reducing the possibility of jamming.

[0030] like Figure 4 As shown, the pin shaft 1 5, the pin shaft 2 6 and the pin shaft 3 7 are all threaded pin assemblies; the threaded pin assembly includes a threaded pin body that can pass through the coupling hole, a blocking plate is provided at one end of the threaded pin body, and a locking nut is threadedly connected to the other end to prevent the threaded pin assembly from easily falling off.

[0031] The utility model describes an anti-scraper conveyor head tilt bracket connector assembly, in which the first-level connector and the second-level connector are hingedly matched to form a two-section connector combination, and since the first-level connector and the second-level connector can rotate relative to each other in the vertical direction after being hinged, the vertical swing amplitude of the scraper conveyor and the hydraulic support is improved, avoiding the jamming caused by the tilt when encountering a large working surface inclination angle.

[0032] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0033] The terms "upper," "lower," "outer," "inner," and the like, if used in the specification and claims of the present invention and the accompanying drawings, are used to distinguish relative positions and do not necessarily define them. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0034] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A scraper conveyor head bracket connector assembly, including a connecting assembly, characterized in that: The connecting assembly comprises a primary connecting head (3) hinged to the hydraulic support (1) and a secondary connecting head (4) hinged to the scraper conveyor (2), wherein the front end of the primary connecting head (3) is hinged to the hydraulic support (1) via a vertical pin shaft 1 (5), so that the primary connecting head (3) rotates around the hydraulic support (1) in the horizontal direction; the rear end of the secondary connecting head (4) is hinged to the scraper conveyor (2) via a horizontal pin shaft 2 (6), so that the secondary connecting head (4) rotates around the scraper conveyor (2) in the vertical direction; the rear end of the primary connecting head (3) is hinged to the front end of the secondary connecting head (4) via a horizontal pin shaft 3 (7), so that the primary connecting head (3) and the secondary connecting head (4) rotate in the vertical direction.

2. The anti-scraper conveyor tilting bracket connector assembly according to claim 1, characterized in that: The front end and rear end of the first-level connector (3) are respectively provided with a first-level coupling hole a (33) cooperating with the pin shaft 1 (5) and a first-level coupling hole b (34) cooperating with the pin shaft 3 (7), and the axis of the first-level coupling hole b (34) corresponds to the upper part of the first-level coupling hole a (33) in the horizontal plane; the front end and rear end of the second-level connector (4) are respectively provided with a second-level coupling hole a (43) cooperating with the pin shaft 3 (7) and a second-level coupling hole b (44) cooperating with the pin shaft 2 (6), and the axis of the second-level coupling hole b (44) is in the same plane as the axis of the second-level coupling hole a (43).

3. The anti-scraper conveyor tilting bracket connector assembly according to claim 2, characterized in that: The top surface of the rear end portion of the first-level connector (3) is higher than the top surface of the front end portion of the first-level connector (3).

4. The anti-scraper conveyor tilting bracket connector assembly according to claim 3, characterized in that: The top surface of the rear end portion of the first-stage connector (3) is inclined, and the inclined angle of the top surface of the first-stage connector (3) is an obtuse angle.

5. The anti-scraper conveyor tilting bracket connector assembly according to any one of claims 1 to 4, characterized in that: The primary connecting head (3) includes a primary connecting ear a (31) and a primary connecting ear b (32), and the secondary connecting head (4) includes a secondary connecting ear a (41) and a secondary connecting ear b (42); the primary connecting ear b (32) and the secondary connecting ear b (42) are both C-shaped structures with their openings facing one side of the scraper conveyor (2); during assembly, the secondary connecting ear a (41) is located within the opening of the primary connecting ear b (32).

6. The anti-scraper conveyor tilting bracket connector assembly according to claim 5, characterized in that: The middle parts of the openings of the first-level connecting ear a (31) and the first-level connecting ear b (32) are arranged opposite to each other, and the middle parts of the openings of the second-level connecting ear a (41) and the second-level connecting ear b (42) are arranged opposite to each other.

7. The anti-scraper conveyor tilting bracket connector assembly according to claim 6, characterized in that: The pin shaft 1 (5), the pin shaft 2 (6) and the pin shaft 3 (7) are all threaded pin assemblies.

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