A gravity automatic gripper assembly for a trenchless guided drill

Abstract

The utility model provides a gravity automatic holder assembly of non - excavation guiding drilling machine relates to non - excavation guiding drilling machine field, including clamping mechanism, the top of clamping mechanism all is fixedly connected with installation mechanism, the clamping mechanism includes the casing, the inner wall fixed connection of casing has a group of fixed plate, the outer wall fixed mounting of fixed plate has a group of hydraulic cylinder, the inner wall sliding connection of hydraulic cylinder has a group of piston rod, in the utility model, through the first clamping block of hydraulic cylinder drive V type design, cooperation sliding groove in sliding block drive movable plate and the second clamping block of V type design, with the help of spring's elasticity, can be according to the size of drill rod automatic regulation clamping range, realize the stable clamping of different diameter drill rod, greatly promote overall practicality, simultaneously, the first rubber pad of first clamping block and second clamping block inner wall and second rubber pad, can reduce the wear and tear to the surface of drill rod in the clamping process, effectively prolongs the service life of drill rod.

Description

Technical Field

[0001] This utility model relates to the field of trenchless directional drilling rigs, and in particular to a gravity automatic clamping assembly for trenchless directional drilling rigs. Background Technology

[0002] Trenchless directional drilling rigs are construction equipment that enables the laying, repair, or replacement of underground pipelines without damaging the ground surface. They are widely used in municipal engineering, gas, electricity, communications, and other fields.

[0003] The gravity automatic gripper assembly of a trenchless directional drilling rig is a key component specifically designed for trenchless construction technology.

[0004] The existing gravity automatic gripper assembly for trenchless directional drilling rigs has the following shortcomings:

[0005] In current drilling technology, in order to ensure the stability of the drill pipe during operation, it is usually necessary to use a clamp to fix it. However, traditional clamps have the problem of overly simple structural design, relying solely on simple squeezing to fix the drill pipe. This method has obvious limitations, especially when dealing with drill pipes of different sizes, it cannot achieve an effective and stable fixing effect, which may affect the quality and efficiency of drilling operations. Utility Model Content

[0006] This invention can automatically adjust the clamping range according to the drill rod size, so as to achieve stable clamping of drill rods of different diameters and solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a gravity automatic clamping assembly for a trenchless directional drilling rig, including a clamping mechanism, the top of which is fixedly connected to an installation mechanism; the clamping mechanism includes a housing, the inner wall of which is fixedly connected to a set of fixing plates, the outer wall of which is fixedly installed with a set of hydraulic cylinders, the inner wall of which is slidably connected to a set of piston rods, the shaft end of which is fixedly connected to a set of first clamping blocks, the inner wall of which is fixedly connected to a set of first rubber pads, the inner wall of which is provided with a sliding groove, the inner wall of which is slidably connected to a slider, and the outer wall of which is fixedly connected to a movable plate. Through the above components, drill rods of different sizes can be adapted, improving the overall practicality.

[0008] Preferably, a hydraulic controller is fixedly installed on one side of the front of the housing, and a set of through holes are opened on the inner wall of the housing. The hydraulic controller is connected to a hydraulic cylinder so as to control the hydraulic cylinder to move the first clamping block through the piston rod.

[0009] Preferably, the outer wall of the hydraulic cylinder is fixedly connected to a set of connecting pipes. The connecting pipes are provided and, through the flanges on them, facilitate connection to external pipelines to ensure normal delivery of hydraulic oil.

[0010] Preferably, each slider has a connecting block fixedly connected to its outer wall. The outer wall of the connecting block is fixedly connected to the outer wall of the first clamping block. Through the connecting blocks, multiple sliders can be connected to the first clamping block so that they can be driven in the future.

[0011] Preferably, the inner wall of the slide groove is slidably connected with a guide rod, and the outer wall of the guide rod is slidably connected with the inner wall of the slider. By setting the guide rod, the stability of the slider when sliding back and forth in the slide groove can be improved.

[0012] Preferably, each of the movable plates has a slide rod fixedly connected to its outer wall, and each slide rod has a second clamping block fixedly connected to its shaft end. Each second clamping block has a second rubber pad fixedly connected to its outer wall, and each slide rod has a spring sleeved on its outer wall. One end of the spring is fixedly connected to the outer wall of the movable plate, and the other end of the spring is fixedly connected to the outer wall of the second clamping block. The slide rod, the second clamping block, the spring, and the second rubber pad are configured to provide auxiliary clamping.

[0013] Preferably, the installation mechanism includes an installation plate, and the outer wall of the installation plate is threaded with connecting bolts. The outer wall of the installation plate is provided with threaded holes at the positions of the connecting bolts. The drilling rig is provided with a corresponding mounting seat. Thus, the installation plate, connecting bolts and threaded holes make it convenient for the user to connect the whole to the mounting seat.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. In this utility model, a V-shaped first clamping block is driven by a hydraulic cylinder, which, together with a slider in the groove, drives a movable plate and a V-shaped second clamping block. With the help of the elasticity of the spring, the clamping range can be automatically adjusted according to the size of the drill rod, so as to achieve stable clamping of drill rods of different diameters and greatly improve the overall practicality. At the same time, the first rubber pad and the second rubber pad on the inner wall of the first clamping block and the second clamping block can reduce the wear on the surface of the drill rod during the clamping process and effectively extend the service life of the drill rod.

[0016] 2. In this utility model, the guide rod improves the stability of the slider sliding in the groove, making the second clamping block more stable when clamping the drill rod, reducing the shaking of the drill rod during operation. The hydraulic controller is connected to the hydraulic cylinder, which can accurately control the hydraulic cylinder to drive the first clamping block to move through the piston rod, thereby achieving precise adjustment of the clamping force and ensuring the reliability of clamping. Attached Figure Description

[0017] Figure 1This utility model provides a perspective view of the main structure of the gravity automatic clamping device assembly for a trenchless directional drilling rig.

[0018] Figure 2 An enlarged perspective view of the housing connection structure in the gravity automatic gripper assembly of a trenchless directional drilling rig is provided for this utility model.

[0019] Figure 3 An enlarged perspective view of the hydraulic cylinder connection structure in the gravity automatic clamping assembly of a trenchless directional drilling rig is provided for this utility model.

[0020] Figure 4 An enlarged perspective view of the slider connection structure in the gravity automatic clamping assembly of a trenchless directional drilling rig is provided for this utility model.

[0021] Figure 5 This utility model presents an enlarged perspective view of the structure of the mounting plate connected to the gravity automatic clamping device assembly of a trenchless directional drilling rig.

[0022] Legend: 1. Clamping mechanism; 101. Housing; 102. Hydraulic controller; 103. Connecting pipe; 104. Fixing plate; 105. Slide groove; 106. Movable plate; 107. Perforation; 108. Hydraulic cylinder; 109. Piston rod; 110. First clamping block; 111. First rubber pad; 112. Guide rod; 113. Connecting block; 114. Slider; 115. Second clamping block; 116. Second rubber pad; 117. Slide rod; 118. Spring; 2. Mounting mechanism; 201. Mounting plate; 202. Threaded hole; 203. Connecting bolt. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Please see Figures 1-5This utility model provides a technical solution: a gravity automatic clamping assembly for a trenchless directional drilling rig, including a clamping mechanism 1, with an installation mechanism 2 fixedly connected to the top of the clamping mechanism 1; the clamping mechanism 1 includes a housing 101, with a set of fixing plates 104 fixedly connected to the inner wall of the housing 101, and a set of hydraulic cylinders 108 fixedly installed on the outer wall of the fixing plates 104, with a set of piston rods 109 slidably connected to the inner wall of the hydraulic cylinders 108, and a set of first clamping blocks 110 fixedly connected to the shaft end of the piston rods 109, with a set of first rubber pads 111 fixedly connected to the inner wall of the first clamping blocks 110, and a sliding groove 105 provided on the inner wall of the housing 101, with a slider 114 slidably connected to the inner wall of the sliding groove 105, and a movable plate 106 fixedly connected to the outer wall of the slider 114. Through the above components, drill rods of different sizes can be adapted, improving the overall practicality.

[0026] like Figure 2 As shown, a hydraulic controller 102 is fixedly installed on one side of the front of the housing 101. A set of through holes 107 are opened on the inner wall of the housing 101. The hydraulic controller 102 is connected to the hydraulic cylinder 108 so as to control the hydraulic cylinder 108 to move the first clamping block 110 through the piston rod 109.

[0027] like Figure 2 As shown, a set of connecting pipes 103 are fixedly connected to the outer wall of the hydraulic cylinder 108. The connecting pipes 103 are provided and connected to external pipelines through the flange on them to ensure the normal delivery of hydraulic oil.

[0028] like Figure 3 and Figure 4 As shown, each slider 114 has a connecting block 113 fixedly connected to its outer wall. The outer wall of the connecting block 113 is fixedly connected to the outer wall of the first clamping block 110. Through the connecting block 113, multiple sliders 114 can be connected to the first clamping block 110 so that they can be driven in the future.

[0029] like Figure 4 As shown, guide rods 112 are slidably connected to the inner wall of the slide groove 105. The outer wall of the guide rod 112 is slidably connected to the inner wall of the slider 114. By setting the guide rods 112, the stability of the slider 114 when sliding back and forth in the slide groove 105 can be improved.

[0030] like Figure 4As shown, each of the movable plate 106 has a slide rod 117 fixedly connected to its outer wall. Each slide rod 117 has a second clamping block 115 fixedly connected to its shaft end. Each second clamping block 115 has a second rubber pad 116 fixedly connected to its outer wall. Each slide rod 117 has a spring 118 sleeved on its outer wall. One end of the spring 118 is fixedly connected to the outer wall of the movable plate 106, and the other end of the spring 118 is fixedly connected to the outer wall of the second clamping block 115. Through the slide rod 117, the second clamping block 115, the spring 118, and the second rubber pad 116, the auxiliary clamping function can be achieved.

[0031] like Figure 5 As shown, the mounting mechanism 2 includes a mounting plate 201. The outer wall of the mounting plate 201 is threaded with connecting bolts 203. The outer wall of the mounting plate 201 is provided with threaded holes 202 at the positions of the connecting bolts 203. The drilling machine is provided with a corresponding mounting seat. The mounting plate 201, connecting bolts 203 and threaded holes 202 make it convenient for the user to connect the whole to the mounting seat.

[0032] The operating method and working principle of this device are as follows: First, hydraulic oil enters the hydraulic cylinder 108 through the connecting pipe 103, pushing the piston rod 109 outward. The piston rod 109 drives the first clamping block 110, which has a V-shaped design, to move towards the drill rod. The first rubber pad 111 on its inner wall contacts the surface of the drill rod, providing clamping force. When the first clamping block 110 moves, it drives the slider 114 to slide along the guide rod 112 in the slide groove 105 through the connecting block 113, ensuring the stability of the movement. The slider 114 simultaneously drives the movable plate 106. The slide bar 117 drives the V-shaped second clamping block 115 to approach the drill pipe. The second clamping block 115 will first contact the outer wall of the drill pipe, and the spring 118 will compress to generate a buffering force. Then, the first clamping block 110 will complete the clamping under hydraulic drive. The V-shaped design maximizes the contact area between the clamping block and the drill pipe. Through the dual action of hydraulic pressure and spring 118, adaptive clamping of the drill pipe is achieved. In addition, the hydraulic controller 102 adjusts the hydraulic oil pressure in real time and precisely controls the thrust of the piston rod 109 to avoid excessive wear or insufficient clamping force.

[0033] The hydraulic controller 102 and hydraulic cylinder 108 used in this application are common conventional equipment on the market and are known to those skilled in the art. In this application, the above equipment is used in a conventional manner without any improvement to its structure and function. As for their settings, installation and electrical connection methods, those skilled in the art can debug and operate them according to the corresponding product instruction manuals, so they will not be described in detail here.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A gravity automatic gripper assembly for a trenchless directional drilling rig, characterized in that, Includes a clamping mechanism (1), and the top of each clamping mechanism (1) is fixedly connected to an installation mechanism (2); The clamping mechanism (1) includes a housing (101). A set of fixing plates (104) are fixedly connected to the inner wall of the housing (101). A set of hydraulic cylinders (108) are fixedly installed on the outer wall of the fixing plates (104). A set of piston rods (109) are slidably connected to the inner wall of the hydraulic cylinders (108). A set of first clamping blocks (110) are fixedly connected to the shaft end of the piston rods (109). A set of first rubber pads (111) are fixedly connected to the inner wall of the first clamping blocks (110). Slide grooves (105) are provided on the inner wall of the housing (101). Slider blocks (114) are slidably connected to the inner wall of the slide grooves (105). Movable plates (106) are fixedly connected to the outer wall of the sliders (114).

2. The gravity automatic gripper assembly for a trenchless directional drilling rig according to claim 1, characterized in that: A hydraulic controller (102) is fixedly installed on one side of the front of the housing (101), and a set of perforations (107) are opened on the inner wall of the housing (101).

3. The gravity automatic gripper assembly for a trenchless directional drilling rig according to claim 1, characterized in that: The outer wall of the hydraulic cylinder (108) is fixedly connected to a set of connecting pipes (103).

4. The gravity automatic gripper assembly for a trenchless directional drilling rig according to claim 1, characterized in that: The outer wall of each slider (114) is fixedly connected to a connecting block (113), and the outer wall of the connecting block (113) is fixedly connected to the outer wall of the first clamping block (110).

5. The gravity automatic gripper assembly for a trenchless directional drilling rig according to claim 1, characterized in that: The inner wall of each groove (105) is slidably connected to a guide rod (112), and the outer wall of the guide rod (112) is slidably connected to the inner wall of the slider (114).

6. The gravity automatic gripper assembly for a trenchless directional drilling rig according to claim 1, characterized in that: Each movable plate (106) has a slide rod (117) fixedly connected to its outer wall. Each slide rod (117) has a second clamping block (115) fixedly connected to its shaft end. Each second clamping block (115) has a second rubber pad (116) fixedly connected to its outer wall. Each slide rod (117) has a spring (118) sleeved on its outer wall. One end of the spring (118) is fixedly connected to the outer wall of the movable plate (106), and the other end of the spring (118) is fixedly connected to the outer wall of the second clamping block (115).

7. The gravity automatic clamping assembly for a trenchless directional drilling rig according to claim 1, characterized in that: The installation mechanism (2) includes an installation plate (201), and the outer wall of the installation plate (201) is threaded with connecting bolts (203). The outer wall of the installation plate (201) is provided with threaded holes (202) at the positions of the connecting bolts (203).

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