Hole guiding device for large-diameter rock block stratum jet grouting pile construction

Abstract

The utility model relates to the technical field of building construction, in particular to a hole guiding device for large-diameter rock block stratum jet grouting pile construction, which comprises a device seat body, a support frame body is fixedly mounted on one side of the top of the device seat body, and one side of the support frame body is fixedly connected with the rear side of a frame body structure formed by a plurality of transverse frame bodies and vertical frame bodies. The vertical frame bodies are fixedly installed on the left side and the right side of the transverse frame body, transverse adjusting structures are arranged on the transverse frame body and the vertical frame bodies, guide hole structures are arranged on the transverse adjusting structures, and an electric control box fixedly installed on the top of the device base body is arranged in the supporting frame body. Stabilizing structures for stabilizing the device are arranged on the left side and the right side of the device seat body; through the hole guiding structure, hole guiding operation can be conducted on the designated positions of the large-diameter block stone and the gravel area before rotary spraying, the hidden danger that a drill rod of the rotary spraying machine is broken and a drill bit falls off is avoided, and the rotary spraying machine is very practical.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a hole-guiding device for the construction of large-diameter block rock stratum rotary jet piles. Background Art

[0002] Jet grouting is a foundation treatment method that is mainly used to improve the bearing capacity and stability of the foundation. The following are the basic steps and principles of jet grouting construction: 1. Construction preparation: including cleaning of the work site, positioning and determining the pile position, positioning the drill rig and ensuring its verticality, preparing mud, etc. 2. Drilling: Use a jet grouting drill rig for drilling operations, and the verticality of the hole must be strictly controlled during the process. 3. Jet grouting: After the drilling is completed, the pre-prepared slurry is sprayed out from the nozzle on the side of the grouting pipe in the form of a high-pressure flow through a high-pressure device, directly impacting and destroying the soil. At the same time, the drill rod is rotated and lifted to fully mix the slurry and the soil. 4. Formation of a consolidation body: As the slurry mixes with the soil, the slurry solidifies to form a columnar consolidation body of a certain diameter in the soil, thereby reinforcing the foundation. The key to jet grouting construction is to control the grouting speed, the uniformity of mixing the slurry and the soil, and the quality of the formation of the consolidation body. During the construction process, it is necessary to select appropriate equipment and materials according to the characteristics of the soil layer and the requirements of the project, and to carry out strict construction control to ensure the quality and effect of the construction. Jet grouting pile construction is suitable for treating various soil layers, such as silt, silty soil, clay soil, silt, sand, artificial fill and gravel soil, and has a good effect on improving the bearing capacity of the foundation and reducing the foundation settlement.

[0003] During the construction process, the geology of some areas is composed of large-diameter boulders and gravel, and the diameter of the boulders is relatively large. When constructing in this area, the jet grouting pile driver cannot penetrate the boulders. Forced operation can easily cause the drill rod to break and the drill bit to fall off, making subsequent work impossible.

[0004] Therefore, it is necessary to design a hole-guiding device for large-diameter block rock stratum jet grouting pile construction to carry out hole-guiding operation at designated positions of large-diameter block rock and gravel areas before jet grouting. Utility Model Content

[0005] The utility model aims to provide a hole-guiding device for the construction of large-diameter rock formation jet grouting piles, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A drilling device for use in the construction of rotary jet grouting piles in large-diameter block rock formations comprises a device base, a crawler wheel for movement is fixedly arranged at the bottom of the device base, a support frame is fixedly installed on one side of the top of the device base, one side of the support frame is fixedly connected to the rear side of a frame structure formed by a plurality of transverse frames and a vertical frame, and the vertical frame is fixedly installed on the left and right sides of the transverse frames, a transverse adjustment structure is arranged on the transverse adjustment structure, a drilling structure is arranged on the transverse adjustment structure, an electric control box fixedly installed on the top of the device base is arranged inside the support frame, and stabilizing structures for stabilizing the device are arranged on the left and right sides of the device base.

[0008] As a preferred solution of the utility model, the lateral adjustment structure includes an adjusting motor fixedly mounted on the top of one side of the lateral frame, the bottom output end of the adjusting motor is connected to a first gear, the first gear is meshed with a second gear, the internal key of the second gear is connected to a transversely arranged ball screw, the outer side of the ball screw is sleeved with a screw nut block, and a guide hole motor is fixedly mounted on the side of the screw nut block away from the ball screw through a fixing cover using screws.

[0009] As a preferred solution of the utility model, the left and right sides of the ball screw are rotatably connected with bearing members located inside the vertical frame body, and the ball screw and the interior of the screw nut block are threadedly connected.

[0010] As a preferred solution of the utility model, a guide slider is fixedly connected to the top of the screw nut block, a guide rail is fixedly provided at the bottom of the transverse frame, and the guide slider is slidably connected inside the guide rail.

[0011] As a preferred solution of the utility model, the hole-guiding structure includes a hole-guiding rotating rod key-connected to the bottom output end of the above-mentioned hole-guiding motor, the hole-guiding rotating rod adopts a multi-section telescopic structure, and a hole-guiding drill bit is fixedly connected to the bottom of the hole-guiding rotating rod.

[0012] As a preferred solution of the utility model, the outer side of the guide hole rotating rod and the frame structure are connected via a guide sleeve, and the guide hole rotating rod is located inside the guide sleeve and is threadedly connected.

[0013] As a preferred solution of the utility model, the stabilizing structure includes threaded holes opened on the left and right sides of the device base, the internal threads of the threaded holes are connected to threaded rods, the top of the threaded rod is fixedly connected to a handwheel, and the bottom of the threaded rod is fixedly connected to a fixing cone.

[0014] Beneficial effect: In the utility model, a hole-guiding structure is used to drill holes at designated locations in large-diameter block stones and gravel areas, and because jet grouting piles usually need to be set up in multiple locations in a certain area, the lateral adjustment structure can be used to move the hole-guiding structure within a certain range to open multiple jet grouting pile grooves, thereby facilitating subsequent jet grouting operations and avoiding the trouble of frequently moving the entire device. The device can be fixed before the hole is drawn through a stabilizing structure, thereby improving the stability of the hole, which is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall structural diagram of a hole-guiding device for the construction of large-diameter rock formation jet grouting piles according to the utility model;

[0016] Figure 2 This is a main structural view of a hole-guiding device for the construction of large-diameter rock formation jet grouting piles according to the utility model;

[0017] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of point A in the figure.

[0018] In the figure: 1. device base; 2. track wheel; 3. support frame; 4. transverse frame; 5. vertical frame; 6. transverse adjustment structure; 61. adjustment motor; 62. first gear; 63. second gear; 64. ball screw; 65. screw nut block; 66. fixed cover; 67. guide slider; 68. guide rail; 7. hole guide structure; 71. hole guide motor; 72. hole guide rotating rod; 73. hole guide drill bit; 74. guide sleeve; 8. electric control box; 9. stabilizing structure; 91. threaded hole; 92. threaded rod; 93. hand wheel; 94. fixed cone. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant literature, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0023] See also Figure 1-3 , the utility model provides a technical solution:

[0024] A drilling device for the construction of rotary jet piles in large-diameter block rock formations comprises a device base 1, a crawler wheel 2 for movement is fixedly arranged at the bottom of the device base 1, a support frame 3 is fixedly installed on one side of the top of the device base 1, one side of the support frame 3 is fixedly connected to the rear side of a frame structure formed by a plurality of transverse frames 4 and a vertical frame 5, and the vertical frame 5 is fixedly installed on the left and right sides of the transverse frame 4, a transverse adjustment structure 6 is arranged on the transverse frame 4 and the vertical frame 5, a drilling structure 7 is arranged on the transverse adjustment structure 6, an electric control box 8 fixedly installed on the top of the device base 1 is arranged inside the support frame 3, and a stabilizing structure 9 for stabilizing the device is arranged on the left and right sides of the device base 1.

[0025] The lateral adjustment structure 6 includes an adjustment motor 61 fixedly mounted on the top of one side of the lateral frame 4, the bottom output end of the adjustment motor 61 is connected to a first gear 62, the first gear 62 is meshed with a second gear 63, the first gear 62 and the second gear 63 are bevel gears, the internal key of the second gear 63 is connected to a transversely arranged ball screw 64, the outer side of the ball screw 64 is sleeved with a screw nut block 65, and the side of the screw nut block 65 away from the ball screw 64 is fixedly mounted with a guide hole motor 71 through a fixing cover 66; the left and right sides of the ball screw 64 are rotatably connected to the guide hole motor 71 located at the bottom of the lateral frame 4; the left and right sides of the ball screw 64 are rotatably connected to the guide hole motor 71 located at the bottom of the lateral frame 4; the right and left ... right and left sides of the ball screw 64 are rotatably connected to the guide hole motor 71 located at the bottom of the lateral frame 4; the right and left sides of the ball screw 64 are rotatably connected to the guide hole motor 71 located at the bottom of the The bearing parts on the inner side of the vertical frame 5, the ball screw 64 and the screw nut block 65 are threadedly connected internally; the top of the screw nut block 65 is fixedly connected with a guide slider 67, and the bottom of the horizontal frame 4 is fixedly provided with a guide rail 68, and the guide slider 67 is located inside the guide rail 68 and is slidably connected; the adjustment motor 61 is used to drive the first gear 62 and the second gear 63 to rotate, and then drive the ball screw 64 to rotate synchronously. At this time, under the limit of the guide slider 67 and the guide rail 68, the screw nut block 65 is driven to move laterally, so that the guide hole structure 7 can move laterally.

[0026] Among them, the hole-guiding structure 7 includes a hole-guiding rotating rod 72 which is key-connected to the bottom output end of the above-mentioned hole-guiding motor 71. The hole-guiding rotating rod 72 adopts a multi-section telescopic structure. A hole-guiding drill bit 73 is fixedly connected to the bottom of the hole-guiding rotating rod 72. The hole-guiding drill bit 73 is made of high-strength alloy material. The outer side of the hole-guiding rotating rod 72 and the frame structure are connected by a guide sleeve 74, and the hole-guiding rotating rod 72 is located in the internal threaded connection of the guide sleeve 74. The hole-guiding motor 71 is used to drive the hole-guiding rotating rod 72 to rotate synchronously. Since the hole-guiding rotating rod 72 is a multi-section telescopic structure, it drives the hole-guiding drill bit 73 below to move up and down, so that the hole-guiding drill bit 73 can be used to perform hole-guiding operations on designated positions in the large-diameter block stone and gravel area, which is convenient for subsequent rotary spraying.

[0027] Among them, the stabilizing structure 9 includes threaded holes 91 opened on the left and right sides of the device base 1, the internal threads of the threaded holes 91 are connected to threaded rods 92, the top of the threaded rod 92 is fixedly connected to a hand wheel 93, and the bottom of the threaded rod 92 is fixedly connected to a fixing cone 94; the hand wheel 93 is rotated to drive the threaded rod 92 located inside the threaded hole 91 to rotate, so that the threaded rod 92 drives the fixing cone 94 to move downward, and then penetrates into the ground for fixation.

[0028] In summary, the utility model can use the hole-guiding structure 7 to perform hole-guiding operations at designated locations in large-diameter block and gravel areas before jet grouting, thereby avoiding the hidden dangers of drill rod breakage and drill bit loss in the jet grouting machine, and is very practical.

[0029] 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. A drilling device for large-diameter jet grouting pile construction in rock formations, comprising a device base (1), characterized in that: A crawler wheel (2) for movement is fixedly arranged at the bottom of the device base (1); a support frame (3) is fixedly installed on one side of the top of the device base (1); one side of the support frame (3) is fixedly connected to the rear side of a frame structure formed by a plurality of transverse frames (4) and a vertical frame (5); and the vertical frame (5) is fixedly installed on the left and right sides of the transverse frame (4); a transverse adjustment structure (6) is arranged on the transverse frame (4) and the vertical frame (5); and a guide hole structure (7) is arranged on the transverse adjustment structure (6); an electric control box (8) fixedly installed on the top of the device base (1) is arranged inside the support frame (3); and a stabilizing structure (9) for stabilizing the device is arranged on the left and right sides of the device base (1).

2. The hole-guiding device for large-diameter jet-jet pile construction in rock formations according to claim 1 is characterized by: The lateral adjustment structure (6) comprises an adjustment motor (61) fixedly mounted on the top of one side of the lateral frame (4); a first gear (62) is connected to the bottom output end of the adjustment motor (61); a second gear (63) is meshingly connected to the first gear (62); an internal key of the second gear (63) is connected to a lateral ball screw (64); a screw nut block (65) is sleeved and connected to the outer side of the ball screw (64); a guide hole motor (71) is fixedly mounted on the side of the screw nut block (65) away from the ball screw (64) by means of a fixing cover (66) and screws.

3. The hole-guiding device for large-diameter jet-jet pile construction in rock formations according to claim 2 is characterized by: The left and right sides of the ball screw (64) are rotatably connected to bearing components located inside the vertical frame (5), and the ball screw (64) and the inside of the screw nut block (65) are threadedly connected.

4. The hole-guiding device for large-diameter jet-jet pile construction in rock formations according to claim 2 is characterized by: A guide slide block (67) is fixedly connected to the top of the lead screw nut block (65), a guide slide rail (68) is fixedly provided at the bottom of the transverse frame (4), and the guide slide block (67) is slidably connected inside the guide slide rail (68).

5. The hole-guiding device for large-diameter jet-jet pile construction in rock formations according to claim 2 is characterized by: The hole-guiding structure (7) comprises a hole-guiding rotating rod (72) key-connected to the bottom output end of the hole-guiding motor (71); the hole-guiding rotating rod (72) adopts a multi-section telescopic structure; and a hole-guiding drill bit (73) is fixedly connected to the bottom of the hole-guiding rotating rod (72).

6. A drilling device for large-diameter jet grouting pile construction in rock formations according to claim 5, characterized in that: The outer side of the guide hole rotating rod (72) and the frame structure are connected via a guide sleeve (74), and the guide hole rotating rod (72) is threadedly connected to the inside of the guide sleeve (74).

7. The hole-guiding device for large-diameter jet-jet pile construction in rock formations according to claim 1 is characterized by: The stabilizing structure (9) comprises threaded holes (91) formed on the left and right sides of the device base (1); a threaded rod (92) is connected to the inner thread of the threaded hole (91); a hand wheel (93) is fixedly connected to the top of the threaded rod (92); and a fixing cone (94) is fixedly connected to the bottom of the threaded rod (92).

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