Supporting shield type top coal caving hydraulic support

Abstract

The utility model discloses a supporting shield type top coal caving hydraulic support, which relates to the technical field of top coal caving hydraulic supports, and comprises a base, two through sliding chutes are arranged at the edges of the two sides of the upper part of the base, the cavities of the sliding chutes are obliquely arranged, and supporting rods are connected in the sliding chutes in a sliding manner. A lifting plate is fixedly connected between the top ends of every two supporting rods, two hydraulic cylinders are installed on the upper portion of the base, a groove is formed in the upper portion of the base, and the hydraulic cylinders are installed on the inner wall of the groove. The crawler mechanism is used for conveniently supporting the shield type top coal caving hydraulic support to move, when supporting is needed, the supporting rods are used for supporting the ground, the weight borne by the crawler mechanism is shared and reduced through the supporting rods, and therefore damage and deformation of the crawler mechanism are avoided; in this way, the moving convenience and the supporting stability of the supporting shield type top coal caving hydraulic support can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of top coal caving hydraulic supports, in particular to a supporting and shielding top coal caving hydraulic support. Background Art

[0002] In coal mining, especially in fully-mechanized mining of thick coal seams, top coal caving technology is widely used due to its high efficiency and high yield. However, traditional hydraulic supports for top coal caving still have shortcomings in terms of support capacity, shielding effect, automation level, and safety. They cannot meet the requirements of complex geological conditions and efficient mining. Top coal caving hydraulic supports mainly serve the purpose of support and shielding.

[0003] At present, since the top coal caving hydraulic support is heavy and bears great pressure, installing rollers will cause the bearing pressure to be too concentrated on the rollers, which will cause the rollers to bend, deform and damage, which will also affect the support stability of the top coal caving hydraulic support and the possible movement of the top coal caving hydraulic support. As a result, the bottom of the current support-shielded top coal caving hydraulic support is generally slid by setting a track, and the movement of the top coal caving hydraulic support is completed by pushing and pulling with traction equipment, which makes its movement more difficult. Utility Model Content

[0004] The purpose of the utility model is to provide a supporting and shielding type top coal caving hydraulic support to solve the problem in the prior art that the supporting and shielding type top coal caving hydraulic support is difficult to move.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a supporting and shielding type coal-laying hydraulic support, comprising a base, two through-type slide grooves are provided on both side edges of the upper part of the base, the slide groove cavity is inclined, a support rod is slidably connected in the slide groove, and a lifting plate is fixedly connected between the tops of each two support rods, two hydraulic cylinders are installed on the upper part of the base, a groove is provided on the upper part of the base, the hydraulic cylinder is installed on the inner wall of the groove, and the support rod and the hydraulic cylinder are both inclined. The hydraulic cylinder used in this application is a purchased part, which is selected according to the power and size requirements. The system for controlling the switch adopts the module provided by the corresponding merchant. This application will not go into details. The telescopic end of the hydraulic cylinder is fixedly connected to the bottom of the lifting plate, crawler mechanisms are provided on both sides of the base, and a support mechanism is installed on the upper part of the base.

[0006] Preferably, the crawler mechanism includes a crawler chain ring and a crawler frame installed on one side of the base, and the crawler frame is rotatably connected to a driving wheel, a guide wheel and a load-bearing wheel distributed in a linear array, and the driving wheel, guide wheel and load-bearing wheel are all arranged inside the crawler chain ring and are transmission-connected to the crawler chain ring.

[0007] Preferably, the support mechanism includes a top beam and a shield beam that are rotatably connected to each other. Four double-extension columns are rotatably connected to the upper part of the base. The telescopic ends of the double-extension columns are fixedly connected to the bottom of the top beam. Two connecting rods are rotatably connected between one side of the base and the shield beam. All four support rods are located between the four double-extension columns.

[0008] Preferably, a connecting plate is fixedly connected between the two lifting plates. The four double-extension columns are respectively located on both sides of the connecting plate. The connecting rod and the double-extension column do not contact each other.

[0009] Preferably, a pushing frame is installed at the front end of the base.

[0010] Preferably, a resisting plate is fixedly connected between the bottoms of every two support rods. A plurality of pointed heads are fixedly connected to the bottom of the resisting plate.

[0011] Preferably, the support mechanism is a ZF10000 / 17 / 34D type hydraulic support.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In this application, by setting the crawler mechanism and the support rods, the crawler mechanism is used to facilitate the movement of the shield type caving hydraulic support. When support is needed, the support rods are used to support the ground, so as to share and reduce the weight borne by the crawler mechanism through the support rods, thereby avoiding damage and deformation of the crawler mechanism. In this way, the movement convenience and support stability of the shield type caving hydraulic support can be effectively improved.

[0014] 2. In this application, by setting the crawler chain links and the crawler frame, the crawler chain links are used to increase the contact area between the crawler mechanism and the ground, thus avoiding the depression phenomenon when the shield type caving hydraulic support moves. Therefore, the movement stability of the shield type caving hydraulic support is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of an overall shield type caving hydraulic support of the present utility model;

[0016] Figure 2 It is a schematic sectional structure diagram of the base of a shield type caving hydraulic support of the present utility model;

[0017] Figure 3 It is a schematic perspective view of the cooperation between the support plate and the hydraulic cylinder of a shield type caving hydraulic support of the present utility model.

[0018] Reference numerals in the figure: 1, base; 2, chute; 3, support rod; 4, lifting plate; 5, hydraulic cylinder; 6, connecting plate; 7, crawler mechanism; 701, crawler link; 702, driving wheel; 703, guide wheel; 704, carrier wheel; 705, crawler frame; 8, support mechanism; 801, top beam; 802, shield beam; 803, double telescopic column; 804, connecting rod; 9, pointed head; 10, pushing frame; 11, abutting plate. Detailed implementation mode

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0020] Embodiment: As Figure 1 - Figure 3 shown, the present invention provides a technical solution for a supported shield type caving hydraulic support, including a base 1. Two through chutes 2 are provided at both side edges of the upper part of the base 1. The cavity of the chute 2 is inclined. A support rod 3 is slidably connected in the chute 2. A lifting plate 4 is fixedly connected between the tops of every two support rods 3. Two hydraulic cylinders 5 are installed on the upper part of the base 1. A groove is provided on the upper part of the base 1, and the hydraulic cylinder 5 is installed on the inner wall of the groove. Both the support rod 3 and the hydraulic cylinder 5 are inclined. The hydraulic cylinder 5 used in this application is a purchased part, which is selected according to the requirements of power and size. The control switch system thereof adopts the module provided by the corresponding merchant, and this application will not elaborate too much. The telescopic end of the hydraulic cylinder 5 is fixedly connected to the bottom of the lifting plate 4. Crawler mechanisms 7 are provided on both sides of the base 1, and a support mechanism 8 is installed on the upper part of the base 1;

[0021] The base 1 is arranged at the bottom of the supported shield type caving hydraulic support. The supported shield type caving hydraulic support moves through the crawler mechanism 7. After moving to the designated position, the lifting plate 4 is driven to descend by the hydraulic cylinder 5, so that the support rod 3 slides in the chute 2, and the bottom end of the support rod 3 contacts the ground. In this way, the pressure borne by the crawler mechanism 7 is reduced by the support rod 3, and the stability of the supported shield type caving hydraulic support is improved. Then, the supported shield type caving hydraulic support can be started for support and shield operations.

[0022] As Figure 1As shown, the crawler mechanism 7 includes a crawler chain ring 701 and a crawler frame 705 installed on one side of the base 1. The crawler frame 705 is rotatably connected to a driving wheel 702, a guide wheel 703 and a load-bearing wheel 704 distributed in a linear array. The driving wheel 702, the guide wheel 703 and the load-bearing wheel 704 are all arranged inside the crawler chain ring 701 and are transmission-connected to the crawler chain ring 701.

[0023] When the supporting and shielding type top coal caving hydraulic support moves, it will move by using the crawler chain ring 701 on the crawler mechanism 7. When the crawler chain ring 701 rotates, it will drive the load-bearing wheel 704 and the driving wheel 702 in the crawler chain ring 701 to rotate; a driving device such as a motor can be installed on the base 1 to drive the driving wheel 702 to rotate, so that the crawler mechanism 7 can be driven automatically without traction.

[0024] like Figure 1 As shown, the support mechanism 8 includes a top beam 801 and a shielding beam 802 that are rotatably connected to each other, four double telescopic columns 803 are rotatably connected to the upper part of the base 1, the telescopic ends of the double telescopic columns 803 are fixedly connected to the bottom of the top beam 801, two connecting rods 804 are rotatably connected between one side of the base 1 and the shielding beam 802, and the four support rods 3 are all located between the four double telescopic columns 803.

[0025] like Figure 2 and Figure 3 As shown, a connecting plate 6 is fixedly connected between the two lifting plates 4, and four double telescopic columns 803 are respectively located on both sides of the connecting plate 6, and the connecting plate 6 and the double telescopic columns 803 do not contact each other;

[0026] When the lifting plate 4 and the connecting plate 6 are lifted or lowered, and when the double telescopic columns 803 are active, the lifting plate 4 and the connecting plate 6 are not in contact with the double telescopic columns 803 .

[0027] like Figure 1 As shown, a push frame 10 is installed at the front end of the base 1, and the push frame 10 is used to pull the base 1 to move.

[0028] like Figure 2 and Figure 3 As shown, a support plate 11 is fixedly connected between the bottoms of every two support rods 3, and a plurality of prongs 9 are fixedly connected to the bottoms of the support plates 11;

[0029] The pointed head 9 and the abutment plate 11 can increase the contact area between the support rod 3 and the ground, as well as the gripping force of the support rod 3, thereby preventing the supporting shield type top coal caving hydraulic support from sliding when it is under pressure.

[0030] like Figure 1 As shown, the support mechanism 8 is a ZF10000 / 17 / 34D hydraulic support.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A powered support with top coal caving function for shielding and supporting, characterized in that: It includes a base (1). On both sides of the upper part of the base (1), two through chutes (2) are provided. A support rod (3) is slidably connected in the chute (2). A lifting plate (4) is fixedly connected between the tops of every two support rods (3). Two hydraulic cylinders (5) are installed on the upper part of the base (1). The telescopic end of the hydraulic cylinder (5) is fixedly connected to the bottom of the lifting plate (4). Crawler mechanisms (7) are arranged on both sides of the base (1), and a support mechanism (8) is installed on the upper part of the base (1).

2. The powered caving hydraulic support of the supported shield type according to claim 1, wherein: The crawler mechanism (7) includes a crawler chain link (701) and a crawler frame (705) installed on one side of the base (1). A driving wheel (702), a guide wheel (703) and a linearly arrayed load-carrying wheel (704) are rotatably connected to the crawler frame (705). The driving wheel (702), the guide wheel (703) and the load-carrying wheel (704) are all arranged inside the crawler chain link (701) and are in transmission connection with the crawler chain link (701).

3. The powered support with top coal caving of the supported shield type according to claim 1, wherein: The support mechanism (8) includes a top beam (801) and a shield beam (802) that are rotatably connected to each other. Four double-extension columns (803) are rotatably connected to the upper part of the base (1). The telescopic end of the double-extension column (803) is fixedly connected to the bottom of the top beam (801). Two connecting rods (804) are rotatably connected between one side of the base (1) and the shield beam (802). All four support rods (3) are located between the four double-extension columns (803).

4. A powered support with top coal caving of the shield support type according to claim 3, characterized in that: A connecting plate (6) is fixedly connected between the two lifting plates (4). The four double-extension columns (803) are respectively located on both sides of the connecting plate (6).

5. A powered support with top coal caving for support and shielding according to claim 1, characterized in that: A pushing frame (10) is installed at the front end of the base (1).

6. The powered caving hydraulic support of the supported shield type according to claim 1, wherein: A bottom plate (il) is fixedly connected between the bottoms of every two support rods (3). A plurality of pointed heads (9) are fixedly connected to the bottom of the bottom plate (11).

7. A powered support with top coal caving of the support and shielding type according to claim 1, characterized in that: The support mechanism (8) is a ZF10000 / 17 / 34D type hydraulic support.

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