Cutting pick fixing device and rotary drilling rig

Abstract

The utility model discloses a cutting pick fixing device and a rotary drilling rig. The cutting pick fixing device comprises a concave wear-resistant protective plate, the connecting plate is connected with the concave wear-resistant protective plate, the lower end of the connecting plate is connected with the cutting pick, and the cutting pick is connected with the concave wear-resistant protective plate through the connecting plate; and the concave wear-resistant protective plate is provided with a bottom protective plate which extends towards the outer side and is attached to the bottom surface of the structure foundation. According to the cutting pick fixing device, the concave wear-resisting protection plate is attached to the inner wall of the wedge-shaped groove and the bottom face of the barrel of the rotary drilling rig, so that the barrel is protected and prevented from being abraded in the drilling process, then the cutting pick is rapidly replaced through the connecting plate connected with the concave wear-resisting protection plate in a fastened mode, and the requirement for convenient replacement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotary drilling rig technical field especially relates to a new type of pick fixing device and have the rotary drilling rig of this pick fixing device. BACKGROUND

[0002] In the hard rock stratum construction process of rotary drilling rig, the installation angle of pick suitable for different strata is not the same, and the pick base is a consumable part. In the prior art, the pick of rotary drilling rig needs to be installed in the lower end of rotary drilling rig, and the key research direction of the present stage tooth holder is the installation angle of pick, and there is no more attention to the wear problem of pick holder, and the tooth holder needs to be replaced in time after being damaged, and the tooth holder replacement operation is complicated at the present stage.

[0003] Therefore, based on the above technical problems, the technical personnel in the art urgently need to develop a new type of pick fixing device and a rotary drilling rig with the pick fixing device. UTILITY MODEL CONTENT

[0004] The utility model aims at optimizing and solving the wear problem of the cylinder and the pick holder in the rotary drilling operation, and meeting the demand of convenient replacement.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The utility model relates to a pick fixing device, which comprises:

[0007] A concave wear-resistant guard plate; and

[0008] A connecting plate connected with the concave wear-resistant guard plate, the lower end of the connecting plate being connected with a pick, the pick being connected with the concave wear-resistant guard plate through the connecting plate;

[0009] The concave wear-resistant guard plate has a bottom guard plate extending towards the outside and abutting against the bottom surface of the structural foundation.

[0010] Further, the concave wear-resistant guard plate comprises:

[0011] A wear-resistant side plate, the lower end of the wear-resistant side plate being bent towards both sides to form the bottom guard plate; and

[0012] An installation plate provided between the two wear-resistant side plates, the installation plate being provided with two installation holes.

[0013] Further, the connecting plate comprises:

[0014] A connecting plate side plate abutting against the wear-resistant side plate; and

[0015] A connecting plate front end plate between the two connecting plate side plates and connected with the mounting plate, the connecting plate front end plate has bolt holes matched with mounting holes of the mounting plate;

[0016] The connecting plate front end plate and the mounting plate are assembled and fixed by high-strength bolts;

[0017] The lower end of the connecting plate side plate is provided with the cutting tooth.

[0018] The utility model discloses a rotary drilling rig, the rotary drilling rig's cylinder end portion is uniformly distributed with a plurality of fixing devices as above along its circumference, and the cutting tooth is integrated in the lower end of the cylinder of the rotary drilling rig through the fixing device.

[0019] Further, the cylinder end portion is provided with a plurality of accommodating grooves for accommodating the concave wear-resistant guard plate;

[0020] The groove is configured as a wedge-shaped groove, and the wear-resistant side plate of the concave wear-resistant guard plate is arranged to be inclined and abut against the inner wall of the wedge-shaped groove.

[0021] The bottom guard plate abuts against the bottom surface of the cylinder.

[0022] Further, the connecting plate front end plate of the connecting plate is assembled and fixed with the mounting plate by two high-strength bolts.

[0023] In the above technical scheme, the utility model provides a cutting tooth fixing device and rotary drilling rig, which has the following beneficial effects:

[0024] The cutting tooth fixing device of the utility model aims to optimize and solve the wear problem of the cylinder and the cutting tooth seat in rotary drilling operation, and can meet the requirement of convenient replacement.

[0025] The cutting tooth fixing device of the utility model utilizes the inner wall of the wedge-shaped groove and the bottom surface of the cylinder of the rotary drilling rig to which the concave wear-resistant guard plate abuts, thereby protecting the cylinder during drilling and avoiding cylinder wear. Secondly, the cutting tooth is replaced quickly by the connecting plate fastened with the concave wear-resistant guard plate, meeting the requirement of convenient replacement. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0027] Fig. 1 The structure diagram of the cutting tooth fixing device disclosed in the embodiments of the present application;

[0028] Fig. 2 Structure diagram of concave wear-resistant guard of tooth fixing device disclosed in the embodiment of the present application;

[0029] Fig. 3 Structure diagram of connecting plate and tooth of tooth fixing device disclosed in the embodiment of the present application;

[0030] Fig. 4 Structure diagram of tooth fixing device disclosed in the embodiment of the present application integrated in a cylinder.

[0031] Explanation of reference signs:

[0032] 1, cylinder; 2, concave wear-resistant guard; 3, connecting plate; 4, tooth;

[0033] 201, wear-resistant side plate; 202, bottom guard; 203, mounting plate; 204, mounting hole; 301, connecting plate side plate; 302, connecting plate front end plate; 303, high-strength bolt. DETAILED DESCRIPTION

[0034] In order for those skilled in the art to better understand the technical scheme of the present application, the present application will be further described in detail below with reference to the drawings.

[0035] Referring to Figs. 1 to 4 shown;

[0036] The embodiment discloses a tooth fixing device, which comprises:

[0037] a concave wear-resistant guard 2; and

[0038] a connecting plate 3 connected with the concave wear-resistant guard 2, the lower end of the connecting plate 3 being connected with a tooth 4, the tooth 4 being connected with the concave wear-resistant guard 2 through the connecting plate 3;

[0039] The concave wear-resistant guard 2 has a bottom guard 202 extending towards the outside and abutting against the bottom surface of the structural foundation.

[0040] Specifically, the embodiment discloses a novel tooth fixing device, which is divided into a concave wear-resistant guard 2 and a connecting plate 3; wherein the concave wear-resistant guard 2 is mainly used to be connected with a structural foundation, and for a rotary drilling rig, the structural foundation is a cylinder 1 of the rotary drilling rig. The concave wear-resistant guard 2 is embedded into a groove of the structural foundation, and at the same time, in order to protect the bottom surface of the cylinder 1 of the rotary drilling rig from being damaged during drilling, the concave wear-resistant guard 2 of the embodiment has a bottom guard 202 extending towards both sides and abutting against the ground of the cylinder 1. In order to realize quick disassembly and assembly of the tooth 4, the embodiment designs the connecting plate 3 which is fixedly assembled with the concave wear-resistant guard 2 through fasteners, the lower end of the connecting plate 3 being connected with the tooth 4, and the upper part of the connecting plate 3 being connected with the concave wear-resistant guard 2 through fasteners.

[0041] Preferably, the concave wear-resistant guard plate 2 of the embodiment comprises wear-resistant side plates 201, the lower ends of the wear-resistant side plates 201 are bent towards both sides to form bottom guard plates 202, and mounting plates 203 are arranged between the two wear-resistant side plates 201, the mounting plates 203 are provided with two mounting holes 204.

[0042] Secondly, based on the structure of the concave wear-resistant guard plate 2, the connecting plate 3 of the embodiment comprises connecting plate side plates 301 abutting against the wear-resistant side plates 201, and connecting plate front end plates 302 located between the two connecting plate side plates 301 and connected with the mounting plates 203, the connecting plate front end plates 302 are provided with bolt holes matched with the mounting holes 204 of the mounting plates 203, the connecting plate front end plates 302 are assembled and fixed with the mounting plates 203 through high-strength bolts 303, and the lower ends of the connecting plate side plates 301 are provided with cutting teeth 4.

[0043] As an extended embodiment, the structure composition and the structural connection relationship of the fixing device have been described in detail above, and the fixing device of the application is mainly used for a rotary drilling rig, therefore, the structure basis mentioned above is the barrel 1 of the rotary drilling rig of the embodiment, specifically, the barrel 1 of the rotary drilling rig of the embodiment is further disclosed, a plurality of fixing devices as described above are uniformly distributed on the barrel 1 of the rotary drilling rig along the circumferential direction, and the cutting teeth 4 are integrated on the lower end of the barrel 1 of the rotary drilling rig through the fixing devices.

[0044] Preferably, the barrel 1 of the embodiment is provided with a plurality of accommodating grooves for accommodating the concave wear-resistant guard plate 2.

[0045] The groove is configured as a wedge-shaped groove, and the wear-resistant side plates 201 of the concave wear-resistant guard plate 2 are arranged to abut against the inner wall of the wedge-shaped groove in an inclined manner, and the bottom guard plates 201 abut against the bottom surface of the barrel 1.

[0046] Specifically, the connecting plate front end plates 302 of the connecting plate 3 are assembled and fixed with the mounting plate 3 through two high-strength bolts 303.

[0047] In the above technical solution, the cutting tooth fixing device and the rotary drilling rig provided by the application have the following beneficial effects:

[0048] The cutting tooth 4 fixing device of the application aims to optimize and solve the wear problem of the barrel and the cutting tooth seat in rotary drilling operation, and can meet the requirement of convenient replacement.

[0049] The cutting tooth fixing device of the application utilizes the concave wear-resistant guard plate 2 abutting against the inner wall of the wedge-shaped groove and the bottom surface of the barrel 1 of the rotary drilling rig, thereby protecting the barrel 1 during drilling and avoiding the wear of the barrel 1, secondly, the quick replacement of the cutting tooth is realized through the connecting plate 3 fastened with the concave wear-resistant guard plate 2, thereby meeting the requirement of convenient replacement.

[0050] The above has only described certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A pick mounting device characterized by, The device comprises: a concave wear-resistant guard plate (2); and a connecting plate (3) connected with the concave wear-resistant guard plate (2), a lower end of the connecting plate (3) being connected with a cutting tooth (4), the cutting tooth (4) being connected with the concave wear-resistant guard plate (2) through the connecting plate (3); the concave wear-resistant guard plate (2) has a bottom guard plate (202) extending towards the outside and abutting against a bottom surface of a structural foundation.

2. A cutting pick mounting device according to claim 1, wherein The concave wear-resistant guard plate (2) comprises: wear-resistant side plates (201), lower ends of the wear-resistant side plates (201) being bent towards both sides to form the bottom guard plate (202); and a mounting plate (203) arranged between the two wear-resistant side plates (201), the mounting plate (203) being provided with two mounting holes (204).

3. A cutting pick mounting device according to claim 2, wherein The connecting plate (3) comprises: connecting plate side plates (301) abutting against the wear-resistant side plates (201); and connecting plate front end plates (302) located between the two connecting plate side plates (301) and connected with the mounting plate (203), the connecting plate front end plates (302) being provided with bolt holes matched with the mounting holes (204) of the mounting plate (203); the connecting plate front end plates (302) and the mounting plate (203) are assembled and fixed through high-strength bolts (303); lower ends of the connecting plate side plates (301) are provided with the cutting teeth (4).

4. A rotary drilling rig, characterized in that The fixed device according to any one of claims 2 to 3 is uniformly distributed along the circumference of the end of the cylinder of the rotary drilling rig, and the cutting teeth (4) are integrated into the lower end of the cylinder (1) of the rotary drilling rig through the fixed device.

5. The rotary drilling rig of claim 4, wherein, The end of the cylinder (1) is provided with a plurality of accommodating grooves for accommodating the concave wear-resistant guard plate (2); the grooves are configured as wedge-shaped grooves, and the wear-resistant side plates (201) of the concave wear-resistant guard plate (2) are arranged to abut against the inner walls of the wedge-shaped grooves; the bottom guard plate (202) abuts against the bottom surface of the cylinder (1).

6. The rotary digger according to claim 5, characterized by The connecting plate front end plates (302) of the connecting plate (3) are assembled and fixed with the mounting plate (203) through two high-strength bolts (303).

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