Shield structure of digging and anchoring all-in-one machine and digging and anchoring all-in-one machine

Abstract

The utility model relates to the technical field of digging and anchoring all-in-one machines, in particular to a shield structure of a digging and anchoring all-in-one machine and the digging and anchoring all-in-one machine. The shield structure comprises a shield top plate, a shield driving assembly, a first supporting rod assembly and a ground supporting device, the shield driving assembly directly acts on the roadway ground through the ground supporting device, and compared with a traditional mode that pressure on the top of a roadway is completely transmitted to a chassis, the reaction force borne by the chassis is greatly reduced, and the influence of chassis shaking on shield work is reduced; through the arrangement of the first supporting rod assembly, machine body shaking caused during cutting operation can be effectively reduced, pressure maintaining of the driving oil cylinder is facilitated, in addition, when pressure relief exists in the driving oil cylinder, the first supporting rod assembly provides a supporting effect, and the stability of shield supporting can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated digging and anchoring machines, in particular to a shield structure of the integrated digging and anchoring machine and the integrated digging and anchoring machine. Background Art

[0002] With the development of intelligent, safe and lean production in the coal mining industry, the related drilling and anchoring equipment is required to have higher stability and better safety. One of the main sources of danger in mine mining operations is roof collapse. Generally, during the mining process of drilling and anchoring equipment, the shield structure of the main machine provides the first support for the mining face.

[0003] The existing shield mechanism of the anchor drilling and boring machine includes an upper shield body, a lower shield body, a lifting column, a telescopic beam and a telescopic cylinder. The lower shield body is U-shaped as a whole, and the upper shield body is door-shaped as a whole. This structure is bulky, has high structural cost and occupies a large amount of working space for underground personnel.

[0004] In other solutions, the supporting components of the shield mechanism of the anchor-digger are set on the chassis, so that the reaction force of the shield support is completely transmitted to the chassis. The shield is greatly affected by the vibration of the chassis when working. The vibration of the chassis affects the stability of the shield support, posing a safety hazard.

[0005] In summary, there is an urgent need to provide a shield structure of a mining and anchoring machine and a mining and anchoring machine to solve the problems existing in the prior art. Utility Model Content

[0006] The purpose of this utility model is to provide a shield structure of a miner-anchor integrated machine and a miner-anchor integrated machine. The specific technical solution is as follows:

[0007] A shield structure for an anchor-mining machine includes a shield top plate, a shield drive assembly, a first support rod assembly, and a ground support device. One end of the shield drive assembly is connected to the shield top plate, and the other end is connected to the ground support device. One end of the first support rod assembly is connected to the shield top plate, and the other end is connected to the chassis of the anchor-mining machine via a fixing seat.

[0008] The ground supporting device is arranged on a fixing seat, and the shield driving assembly can drive the ground supporting device to contact the ground.

[0009] Furthermore, the shield drive assembly includes a shield drive unit, a fixed end of the shield drive unit is hinged to the shield top plate, and a telescopic end of the shield drive unit is hinged to the ground supporting device.

[0010] Furthermore, the ground-supporting device includes a ground-supporting swing seat, and the ground-supporting swing seat is hinged to the fixed seat through a swing arm;

[0011] The telescopic end of the shield driving unit is hinged to the ground-supporting swing seat.

[0012] Furthermore, the ground-supporting swing seat is tilted, and the inclination angle θ between the bottom surface of the ground-supporting swing seat and the ground is 15° to 25°.

[0013] Furthermore, a plurality of conical columns are provided on the bottom surface of the ground-supporting swing seat.

[0014] Furthermore, the first support rod assembly includes an outer sleeve, a telescopic rod and a limit block, the outer sleeve is hinged to the shield top plate, one end of the telescopic rod is slidably connected to the outer sleeve, and the other end is hinged to the fixed seat;

[0015] The outer sleeve is provided with a plurality of limit pin holes along the axial direction, and the limit blocks cooperate with the limit pin holes to limit the telescopic stroke of the telescopic rod.

[0016] Furthermore, it also includes a second support rod assembly, one end of which is hinged to the shield top plate and the other end is hinged to the chassis.

[0017] A drilling and anchoring machine comprises a chassis and the shield structure described above, wherein the shield structure is arranged on the chassis.

[0018] The application of the technical solution of the utility model has the following beneficial effects:

[0019] (1) The present invention provides a shield structure for an anchor-digger, comprising a shield top plate, a shield drive assembly, a first support rod assembly, and a ground support device. One end of the shield drive assembly is connected to the shield top plate, and the other end is connected to the ground support device. One end of the first support rod assembly is connected to the shield top plate, and the other end is connected to the chassis of the anchor-digger via a fixed seat. The ground support device is arranged on the fixed seat, and the shield drive assembly can drive the ground support device to contact the ground. The shield structure provided by the present invention has a simple overall structure, low cost, and occupies relatively little working space. In addition, the shield drive assembly cooperates with the ground support device to adjust the height of and support the shield top plate. When working, the ground support device contacts the ground, so that the reaction force of the shield support is transmitted to the ground, reducing the influence of chassis vibration on the shield during operation, and improving the stability and safety of the shield support.

[0020] (2) In the present invention, the first support rod assembly is arranged close to the shield drive assembly, and the shield drive assembly and the first support rod assembly work together to provide support. When the shield drive assembly has support abnormalities, the first support rod assembly still provides support, thereby improving the stability and safety of the shield support.

[0021] (3) In the present invention, the ground-supporting device includes a ground-supporting swing seat, which is hinged to a fixed seat via a swing arm; the telescopic end of the shield driving unit is hinged to the ground-supporting swing seat; the ground-supporting swing seat is pressed into contact with the ground under the action of the shield driving unit to achieve self-locking, with a simple structure and easy operation.

[0022] (4) In the present invention, a plurality of conical columns are provided on the bottom surface of the ground-supporting swing seat, which can increase the contact area and friction between the ground-supporting swing seat and the ground, thereby improving the support stability.

[0023] (5) The present invention also provides a mining and anchoring machine, comprising a chassis and a shield structure, wherein the shield structure is arranged on the chassis. By adopting the shield structure, the safety of the mining and anchoring machine support is improved.

[0024] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the shield structure of the anchoring and digging machine in an embodiment of the present utility model;

[0027] Figure 2 This is a schematic diagram of the shield structure of the anchor and miner in a non-working state;

[0028] Figure 3 This is a schematic diagram of the ground support device in the shield structure of the anchor and miner machine changing from a non-working state to a working state;

[0029] Figure 4 yes Figure 3 A partial enlarged view of

[0030] Among them, 1. Shield top plate, 2. Shield drive assembly, 3. First support rod assembly, 4. Ground support device, 4.1. Ground support swing seat, 4.2. Swing arm, 5. Fixed seat, 6. Chassis, 7. Second support rod assembly. DETAILED DESCRIPTION

[0031] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0034] Example

[0035] See also Figure 1 This embodiment provides a shield structure of an integrated miner and anchor machine, including a shield top plate 1, a shield drive assembly 2, a first support rod assembly 3 and a ground support device 4. One end of the shield drive assembly 2 is connected to the shield top plate 1, and the other end is connected to the ground support device 4; one end of the first support rod assembly 3 is connected to the shield top plate 1, and the other end is connected to the fixing seat 5, and the fixing seat 5 is fixed to the chassis 6 of the integrated miner and anchor machine by bolts; the ground support device 4 is arranged on the fixing seat 5, and the shield drive assembly 2 can drive the ground support device 4 to contact the ground.

[0036] The shield drive assembly 2 includes a shield drive unit. The fixed end of the shield drive unit is hinged to the shield top plate 1, and the telescopic end of the shield drive unit is hinged to the ground support device 4. The shield drive unit is used to drive the shield top plate 1 up and down and provide support. In this embodiment, two shield drive units are preferably located on either side of the shield top plate 1. The shield drive units are preferably driven by hydraulic cylinders.

[0037] See also Figure 4 The ground supporting device 4 includes a ground supporting swing seat 4.1, the ground supporting swing seat 4.1 is connected to the swing arm 4.2, and the swing arm 4.2 is hinged to the fixed seat 5; the telescopic end of the driving cylinder is hinged to the ground supporting swing seat 4.1.

[0038] Preferably, see Figures 1-4 The ground-supporting swing seat 4.1 is tilted, and the inclination angle θ between the bottom surface of the ground-supporting swing seat 4.1 and the ground is 15° to 25°, preferably 20°, to ensure that the ground-supporting swing seat 4.1 can fit with the ground of the coal mine tunnel under the driving action of the driving cylinder.

[0039] Preferably, the bottom surface of the ground-supporting swing seat 4.1 is provided with a plurality of conical columns. The provision of a plurality of conical columns can increase the contact area between the ground-supporting swing seat 4.1 and the ground, while increasing the friction with the ground and improving the stability of the support for the shield top plate 1.

[0040] See also Figure 1 In this embodiment, the first support rod assembly 3 is arranged near the shield drive unit. The first support rod assembly 3 includes an outer sleeve, a telescopic rod and a limit block. The outer sleeve is hinged to the shield top plate 1. One end of the telescopic rod is slidably connected to the outer sleeve, and the other end is hinged to the fixed seat 5. The outer sleeve is provided with a plurality of limit pin holes along the axial direction. The limit blocks cooperate with the limit pin holes to achieve limit adjustment of the telescopic stroke of the telescopic rod to meet the support requirements of different coal lane heights. Preferably, in this embodiment, limit pin holes are provided on the outer sleeve every 200 mm, and pin holes are also provided on the telescopic rod accordingly. The limit blocks are pin shafts. When the driving cylinder telescopically drives the shield top plate 1 to rise to the specified height, the pin shaft is inserted into the limit pin hole of the outer sleeve and the pin hole of the telescopic rod to limit the telescopic stroke of the telescopic rod, so that the first support rod assembly 3 supports the shield top plate 1.

[0041] The shield structure provided in this embodiment also includes a second support rod assembly 7, which is arranged away from the driving cylinder. One end of the second support rod assembly 7 is hinged to the shield top plate 1, and the other end is hinged to the chassis 6. In this embodiment, the second support rod assembly 7 has the same structure as the first support rod assembly 3. The second support rod assembly 7 cooperates with the first support rod assembly 3 to improve the shield support stability.

[0042] See also Figure 2 When the shield structure is in a non-working state, the driving cylinder, the ground support device 4 and the support rod assembly (the first support rod assembly 3 and the second support rod assembly 7) are all in a retracted state. Figure 3 and Figure 4 When the shield structure is working, the driving cylinders on both sides of the shield top plate 1 extend synchronously, and the ground-supporting swing seat 4.1 rotates around the fixed seat 5 and fits into the ground; the driving cylinder continues to extend, driving the outer sleeve to move synchronously. When the shield top plate 1 rises to the specified height, the driving cylinder stops extending, and the pin shaft is used to limit the outer sleeve and the telescopic rod. The driving cylinder, the ground-supporting swing seat 4.1, the first support rod assembly 3 and the second support rod assembly 7 jointly support the shield top plate 1.

[0043] The shield structure provided by the present invention is that the shield driving unit acts directly on the tunnel ground through the ground supporting device 4. Compared with the traditional method of transmitting all the pressure on the tunnel top to the chassis 6, the reaction force on the chassis 6 is greatly reduced, the influence of the chassis shaking on the shield operation is reduced, and the stability and safety of the shield support are improved; through the setting of the support rod assembly, the vibration of the fuselage caused by the cutting operation can be effectively reduced, which is beneficial to the pressure maintenance of the driving cylinder. In addition, when the driving cylinder is depressurized, the support function provided by the first support rod assembly 3 can ensure the stability of the shield support.

[0044] This embodiment also provides a mining and anchoring machine, including a chassis 6 and the shield structure as described above. The shield structure is arranged on the chassis 6. The above-mentioned shield structure is adopted to support the shield top plate 1 and the chassis 6 through the support rod assembly. At the same time, the shield drive unit supports the shield top plate 1 and the ground. The dual support structure improves the stability of the mining and anchoring machine support.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A shield structure for an integrated miner and anchoring machine, characterized in that: The invention comprises a shield top plate (1), a shield drive assembly (2), a first support rod assembly (3) and a ground support device (4); one end of the shield drive assembly (2) is connected to the shield top plate (1), and the other end is connected to the ground support device (4); one end of the first support rod assembly (3) is connected to the shield top plate (1), and the other end is connected to the chassis (6) of the anchor drilling machine through a fixing seat (5); The ground-supporting device (4) is arranged on a fixing seat (5), and the shield driving assembly (2) is capable of driving the ground-supporting device (4) to contact the ground.

2. The shield structure of the anchor miner according to claim 1, characterized in that: The shield drive assembly (2) comprises a shield drive unit, a fixed end of the shield drive unit is hinged to the shield top plate (1), and a telescopic end of the shield drive unit is hinged to the ground support device (4).

3. The shield structure of the anchor miner according to claim 2, characterized in that: The ground-supporting device (4) comprises a ground-supporting swing seat (4.1), and the ground-supporting swing seat (4.1) is hinged to a fixed seat (5) via a swing arm (4.2); The telescopic end of the shield driving unit is hinged to the ground-supporting swing seat (4.1).

4. The shield structure of the anchor miner according to claim 3, characterized in that: The ground-supporting swing seat (4.1) is tilted, and the inclination angle θ between the bottom surface of the ground-supporting swing seat (4.1) and the ground is 15° to 25°.

5. The shield structure of the anchor miner according to claim 3, characterized in that: The bottom surface of the ground-supporting swing seat (4.1) is provided with a plurality of conical columns.

6. The shield structure of the anchor miner according to claim 1, characterized in that: The first support rod assembly (3) comprises an outer sleeve, a telescopic rod and a limit block, wherein the outer sleeve is hinged to the shield top plate (1), one end of the telescopic rod is slidably connected to the outer sleeve, and the other end is hinged to the fixed seat (5); The outer sleeve is provided with a plurality of limit pin holes along the axial direction, and the limit blocks cooperate with the limit pin holes to limit the telescopic stroke of the telescopic rod.

7. A shield structure for an integrated miner and anchoring machine according to any one of claims 1 to 6, characterized in that: It also includes a second support rod assembly (7), one end of which is hinged to the shield top plate (1) and the other end of which is hinged to the chassis (6).

8. A drilling and anchoring machine, characterized in that: It comprises a chassis (6) and a shield structure according to any one of claims 1 to 7, wherein the shield structure is arranged on the chassis (6).

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