Adjusting device for pulley yoke of portable rotary drilling rig

Abstract

The utility model relates to a portable rotary drilling rig pulley yoke adjusting device which comprises a mast body, an adjusting mechanism is arranged in the mast body, a fixing mechanism is arranged in the adjusting mechanism, the adjusting mechanism comprises a first motor, the right side of the first motor is fixedly connected with the right side wall of an inner cavity of the mast body, and the right side of the first motor is fixedly connected with the right side wall of the inner cavity of the mast body. An output shaft of the first motor is fixedly connected with a screw shaft through a coupler, a shell is installed on the outer surface of the screw shaft in a threaded mode, two pulling plates with one ends penetrating through and extending out of the shell are fixedly installed on the left side of the shell, and a pulley yoke is rotatably installed on the left side of the mast body; two short plates are fixedly installed on the right side of the pulley yoke, and one sides of the two short plates are rotationally connected with one sides of two pulling plates correspondingly. According to the adjusting device for the pulley yoke of the portable rotary drilling rig, by arranging the adjusting mechanism, the purpose of adjusting the angle of the pulley yoke is achieved, and the rotary drilling rig is convenient to transport.

Description

Technical Field

[0001] The utility model relates to the technical field of pulley frames of rotary drilling rigs, in particular to an adjusting device for a pulley frame of a portable rotary drilling rig. Background Art

[0002] A rotary drilling rig is a commonly used deep foundation construction equipment. When transporting the equipment, it is inevitably subject to height restrictions, and the pulley frame is at the highest position, which requires adjusting the angle of the pulley frame to reduce the overall transportation height.

[0003] According to the patent with announcement number CN216997431 U, a pulley frame and a rotary drilling rig are proposed. The pulley frame and the rotary drilling rig can adjust the distance between the lifting center and the mast by adjusting the telescopic length of the linearly telescopic boom 400, thereby improving the versatility of the pulley frame. At the same time, the linearly telescopic boom 400 can adjust the distance between the lifting center and the mast by linear telescoping, which can effectively avoid interference between the wire rope installed on the pulley 201 and the anti-slip groove rod. In addition, compared with the articulated rotating telescopic structure, the linearly telescopic boom 400 has higher stability.

[0004] However, for the pulley frame and the rotary drilling rig, the angle of the pulley frame is mostly adjusted by using a transport bracket, which is connected to the pulley frame and the mast body by bolts to support the pulley frame so that it forms a certain angle with the mast body. This method not only requires more manpower to control the pulley frame, but also requires repeated disassembly and assembly of the transport bracket. The transport bracket and the mast are not a whole, which leads to the problem of loss of the transport bracket. Therefore, an adjustment device for the pulley frame of a portable rotary drilling rig is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an adjustment device for the pulley frame of a portable rotary drilling rig, which has the advantage of adjusting the angle of the pulley frame, and solves the problem of the pulley frame and the rotary drilling rig. The method of adjusting the angle of the pulley frame is mostly to use a transport bracket, which is connected to the pulley frame and the mast body by bolts to support the pulley frame so that it forms a certain angle with the mast body. This method not only requires more manpower to control the pulley frame, but also requires repeated disassembly and assembly of the transport bracket. The transport bracket and the mast are not a whole, and there is a problem of loss of the transport bracket.

[0006] To achieve the above object, the utility model provides the following technical solution: an adjustment device for a pulley frame of a portable rotary drilling rig, comprising a mast body, an adjustment mechanism is arranged inside the mast body, and a fixing mechanism is arranged inside the adjustment mechanism;

[0007] The adjusting mechanism includes a first motor, the right side of which is fixedly connected to the right side wall of the inner cavity of the mast body, the output shaft of the first motor is fixedly connected to a screw shaft through a coupling, the outer surface of the screw shaft is threadedly mounted with a shell, the left side of the shell has two pull plates with one end passing through and extending to the outside thereof fixedly mounted, the left side of the mast body has a pulley frame rotatably mounted, the right side of the pulley frame has two short plates fixedly mounted, one side of the two short plates is rotatably connected to one side of the two pull plates respectively.

[0008] Furthermore, the fixing mechanism includes two fixing sleeves, the outer surfaces of the two fixing sleeves are respectively slidably connected to the top and bottom of the shell, and limit blocks are fixedly installed on the left and right sides of the two fixing sleeves.

[0009] Furthermore, a partition is fixedly installed between the inner top wall and the inner bottom wall of the mast body, and a sliding rod is fixedly installed on the left side of the partition.

[0010] Furthermore, a moving hole is opened inside the shell, and the inner surface of the moving hole is slidably connected to the outer surface of the sliding rod.

[0011] Furthermore, two slide grooves are provided on the left side of the mast body, and the inner surfaces of the two slide grooves are respectively slidably connected to the outer surfaces of the two pull plates.

[0012] Furthermore, the top and the bottom of the mast body are both provided with square holes, and the inner surfaces of the two square holes are respectively engaged with the outer surfaces of the two fixing sleeves.

[0013] Furthermore, the left and right side walls of the inner cavity of the shell are both provided with limiting grooves, and the inner surfaces of the two limiting grooves are respectively slidably connected to the outer surfaces of the two limiting blocks.

[0014] Furthermore, a second motor is fixedly installed on the right side wall of the inner cavity of the shell, and the output shaft of the second motor is fixedly connected to two threaded shafts through a coupling, and the outer surfaces of the two threaded shafts are respectively threadedly connected to the outer surfaces of two fixed sleeves.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The adjusting device of the pulley frame of the portable rotary drilling rig achieves the purpose of adjusting the angle of the pulley frame by providing an adjusting mechanism, thereby facilitating the transportation of the rotary drilling rig. The fixing mechanism is provided to fix the state of the pulley frame, and the adjusting device is always connected to the mast, so there is no problem of the adjusting device being removed and lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 The utility model structure Figure 1 The right side cross-sectional view of

[0019] Figure 3 The utility model structure Figure 1 Stereoscopic diagram.

[0020] In the figure: 1. mast body; 2. adjusting mechanism; 201. first motor; 202. screw shaft; 203. housing; 204. partition; 205. slide rod; 206. pull plate; 207. square hole; 208. pulley frame; 209. short plate; 3. fixing mechanism; 301. fixing sleeve; 302. limit block; 303. second motor; 304. threaded shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1: Please refer to Figure 1 and Figure 3 In this embodiment, an adjustment device for a pulley frame of a portable rotary drilling rig includes a mast body 1, an adjustment mechanism 2 is arranged inside the mast body 1, a fixing mechanism 3 is arranged inside the adjustment mechanism 2, the adjustment mechanism 2 includes a first motor 201, the right side of the first motor 201 is fixedly connected to the right side wall of the inner cavity of the mast body 1, the output shaft of the first motor 201 is fixedly connected to the screw shaft 202 through a coupling, and the first motor 201 drives the screw shaft 202 to rotate.

[0023] Among them, the outer surface of the screw shaft 202 is threadedly installed with an outer shell 203, a partition 204 is fixedly installed between the inner top wall and the inner bottom wall of the mast body 1, a slide rod 205 is fixedly installed on the left side of the partition 204, and a movable hole is opened inside the outer shell 203. The inner surface of the movable hole is slidably connected with the outer surface of the slide rod 205, and the screw shaft 202 enables the outer shell 203 to move to the left through the slide rod 205.

[0024] Among them, two pull plates 206 with one end penetrating through and extending to the outside are fixedly installed on the left side of the outer shell 203, and two slide grooves are opened on the left side of the mast body 1. The inner surfaces of the two slide grooves are respectively slidably connected with the outer surfaces of the two pull plates 206. The outer shell 203 drives the two pull plates 206 to move to the left, and a pulley frame 208 is rotatably installed on the left side of the mast body 1. Two short plates 209 are fixedly installed on the right side of the pulley frame 208. One side of the two short plates 209 is respectively rotatably connected with one side of the two pull plates 206, and the two pull plates 206 adjust the angle of the pulley frame 208 through the two short plates 209.

[0025] Specifically, when adjusting the angle of the pulley frame 208 of the rotary drilling rig, start the first motor 201 to drive the screw shaft 202 to rotate, and the screw shaft 202 causes the outer shell 203 to move to the left through the slide rod 205. The outer shell 203 drives the two pull plates 206 to move to the left. The two pull plates 206 adjust the angle of the pulley frame 208 through the two short plates 209, so as to facilitate the transportation of the rotary drilling rig.

[0026] Example 2: Please refer to Figure 1 and Figure 2 On the basis of the first embodiment, the fixing mechanism 3 includes two fixing sleeves 301, the outer surfaces of the two fixing sleeves 301 are respectively slidably connected to the top and bottom of the outer shell 203, and the left and right sides of the two fixing sleeves 301 are fixedly installed with limit blocks 302. The top and bottom of the mast body 1 are both provided with square holes 207, and the inner surfaces of the two square holes 207 are respectively embedded with the outer surfaces of the two fixing sleeves 301. The fixing sleeve 301 fixes the angle adjusted by the pulley frame 208 of the rotary drilling rig through the square hole 207.

[0027] Among them, the left and right side walls of the inner cavity of the shell 203 are provided with limit grooves, the inner surfaces of the two limit grooves are respectively slidably connected to the outer surfaces of the two limit blocks 302, and the second motor 303 is fixedly installed on the right side wall of the inner cavity of the shell 203. The output shaft of the second motor 303 is fixedly connected to two threaded shafts 304 through a coupling. The second motor 303 drives the two threaded shafts 304 to rotate, and the outer surfaces of the two threaded shafts 304 are respectively threadedly connected to the outer surfaces of the two fixed sleeves 301, and the two threaded shafts 304 drive the two fixed sleeves 301 to pass through the limit blocks 302 and insert into the square hole 207.

[0028] Specifically, start the second motor 303 to drive the two threaded shafts 304 to rotate, and the two threaded shafts 304 drive the two fixed sleeves 301 to be inserted into the square hole 207 through the limit block 302, so as to fix the adjustment angle of the pulley frame 208 of the rotary drilling rig. When used together with the mast folding cylinder, more labor costs can be reduced and the operation is simple. In addition, the pull plate 206 can be flexibly designed according to the adjustment angle of the pulley frame 208, and can also be used as a universal part for different types of rotary drilling rigs, and the adjusting device is always connected to the mast, so there is no problem of the adjusting device being removed and lost.

[0029] The working principle of the above embodiment is:

[0030] (1) When adjusting the angle of the pulley frame 208 of the rotary drilling rig, the first motor 201 is started to drive the screw shaft 202 to rotate. The screw shaft 202 causes the housing 203 to move to the left through the slide bar 205. The housing 203 drives the two pull plates 206 to move to the left. The two pull plates 206 adjust the angle of the pulley frame 208 through the two short plates 209.

[0031] (2) Start the second motor 303 to drive the two threaded shafts 304 to rotate. The two threaded shafts 304 drive the two fixed sleeves 301 to be inserted into the square hole 207 through the limit block 302 to fix the adjustment angle of the pulley frame 208 of the rotary drilling rig. When used together with the mast-folding cylinder, more labor costs can be reduced and the operation is simple. In addition, the pull plate 206 can be flexibly designed according to the adjustment angle of the pulley frame 208, and can also be used as a universal part for different models of rotary drilling rigs.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjusting device for a pulley frame of a portable rotary drilling rig, comprising a mast body (1), characterized in that: An adjusting mechanism (2) is arranged inside the mast body (1), and a fixing mechanism (3) is arranged inside the adjusting mechanism (2); The adjustment mechanism (2) comprises a first motor (201), the right side of the first motor (201) is fixedly connected to the right side wall of the inner cavity of the mast body (1), the output shaft of the first motor (201) is fixedly connected to the screw shaft (202) via a coupling, the outer surface of the screw shaft (202) is threadedly mounted with a shell (203), the left side of the shell (203) is fixedly mounted with two pull plates (206) with one end passing through and extending to the outside thereof, the left side of the mast body (1) is rotatably mounted with a pulley frame (208), the right side of the pulley frame (208) is fixedly mounted with two short plates (209), one side of the two short plates (209) is rotatably connected to one side of the two pull plates (206) respectively.

2. The adjustment device for the pulley frame of a portable rotary drilling rig according to claim 1, characterized in that: The fixing mechanism (3) comprises two fixing sleeves (301), the outer surfaces of the two fixing sleeves (301) are respectively slidably connected to the top and bottom of the outer shell (203), and limit blocks (302) are fixedly installed on the left and right sides of the two fixing sleeves (301).

3. The adjustment device for the pulley frame of a portable rotary drilling rig according to claim 1, characterized in that: A partition plate (204) is fixedly installed between the inner top wall and the inner bottom wall of the mast body (1), and a sliding rod (205) is fixedly installed on the left side of the partition plate (204).

4. The adjusting device for the pulley frame of a portable rotary drilling rig according to claim 3 is characterized in that: A moving hole is provided inside the housing (203), and the inner surface of the moving hole is slidably connected to the outer surface of the sliding rod (205).

5. The adjusting device for the pulley frame of a portable rotary drilling rig according to claim 1, characterized in that: Two sliding grooves are provided on the left side of the mast body (1), and the inner surfaces of the two sliding grooves are respectively slidably connected to the outer surfaces of the two pull plates (206).

6. The adjustment device for the pulley frame of a portable rotary drilling rig according to claim 2, characterized in that: The top and bottom of the mast body (1) are both provided with square holes (207), and the inner surfaces of the two square holes (207) are respectively engaged with the outer surfaces of the two fixing sleeves (301).

7. The adjustment device for the pulley frame of a portable rotary drilling rig according to claim 2, characterized in that: The left and right side walls of the inner cavity of the shell (203) are both provided with limiting grooves, and the inner surfaces of the two limiting grooves are respectively slidably connected to the outer surfaces of the two limiting blocks (302).

8. The adjustment device for the pulley frame of a portable rotary drilling rig according to claim 2, characterized in that: A second motor (303) is fixedly mounted on the right side wall of the inner cavity of the housing (203); an output shaft of the second motor (303) is fixedly connected to two threaded shafts (304) via a coupling; outer surfaces of the two threaded shafts (304) are respectively threadedly connected to outer surfaces of two fixed sleeves (301).

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