A translation guide mechanism for a drilling rig

Abstract

The utility model provides a kind of translation guiding mechanism for drilling machine, belong to mechanical technical field.It solves the problem of poor stability of existing guiding mechanism.The translation guiding mechanism for drilling machine includes guide rod and the guide sleeve of being set in the guide rod outside, the inner diameter of guide sleeve is greater than the outer diameter of guide rod, both ends of guide sleeve are equipped with copper sleeve and annular sealing element, and two copper sleeves are between two sealing elements;The shape and size of copper sleeve inner hole are matched with guide rod, and copper sleeve is sleeved on corresponding guide rod;The inner and outer two side walls of sealing element are respectively in contact with guide rod outer wall and guide sleeve inner wall sealing.The translation guiding mechanism for drilling machine runs smoothly.

Description

Technical Field

[0001] This utility model belongs to the field of engineering equipment and relates to a drilling rig, and more particularly to a translational guiding mechanism for a drilling rig. Background Technology

[0002] A drilling rig is a mechanical device used in exploration or mineral resource development to drive drilling tools into the ground to obtain physical geological data.

[0003] Existing drilling rig structures, such as the fully hydraulically driven tunnel drilling rig disclosed in the Chinese Patent Database (application number: 201420316806.7), include a frame, a feeding mechanism, a rotary head, a hydraulic chuck, and a clamping mechanism. The feeding mechanism includes two long-stroke feeding cylinders, a feeding beam, and a tie rod connecting the feeding beam and the rotary head. The cylinder bodies of the two long-stroke feeding cylinders are fixed to the main frame by fasteners at their front and rear ends. The top ends of the piston rods of the two long-stroke feeding cylinders are connected to the feeding beam. The rotary head includes a transmission box, a hollow spindle, and a hydraulic motor that drives the hollow spindle to rotate. Two sleeves are symmetrically arranged on the transmission box on both sides of the hollow spindle, and the axis of the two sleeves is in the same plane as the axis of the hollow spindle. The rotary head is slidably mounted on the cylinder bodies of the two long-stroke feeding cylinders through the two sleeves.

[0004] The aforementioned drilling rig involves multiple translational movements and is guided by guide rods and guide sleeves. Because the drilling rig is used in outdoor, dirty conditions, mud and grime often adhere to the guide rods. This mud and grime entering and accumulating in the gap between the guide rods and guide sleeves severely hinders translational movements, affecting the rig's usability and lifespan. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a stable translational guiding mechanism for drilling rigs.

[0006] The objective of this utility model can be achieved through the following technical solution: A translational guiding mechanism for a drilling rig, comprising a guide rod and a guide sleeve sleeved outside the guide rod, characterized in that the inner diameter of the guide sleeve is larger than the outer diameter of the guide rod, and copper sleeves and annular sealing elements are installed inside both ends of the guide sleeve, with the two copper sleeves positioned between the two sealing elements; the shape and size of the inner hole of the copper sleeve are matched with the guide rod, and the copper sleeve is sleeved on the corresponding guide rod; the inner and outer side walls of the sealing elements respectively contact and seal with the outer wall of the guide rod and the inner wall of the guide sleeve.

[0007] Both ends of the guide sleeve are sealed with the guide rod through the seals to block external dust and other impurities from entering the seals. This allows the copper sleeve to slide in a relatively closed and clean environment, which not only ensures smooth sliding of the copper sleeve and stable translation process, but also reduces wear on the copper sleeve and extends its service life.

[0008] In the aforementioned translational guide mechanism for drilling rigs, the type of seal is a dustproof oil seal, which is used to better prevent dust and other impurities from being trapped outside.

[0009] In the aforementioned translational guiding mechanism for drilling rigs, the guide sleeve includes a sleeve and two retaining rings respectively disposed at both ends of the sleeve, with both the sleeve and retaining rings fitted over the guide rod. Two copper sleeves are disposed inside the sleeve, and two sealing elements are disposed inside the two retaining rings, with both retaining rings detachably and sealingly connected to the sleeve. By separately placing the sealing elements and copper sleeves in the sleeve and retaining rings, and by providing a detachable connection between the sleeve and retaining rings, the copper sleeves and sealing elements can be replaced individually, facilitating subsequent maintenance and reducing maintenance costs.

[0010] In the aforementioned translational guiding mechanism for drilling rigs, the inner walls at both ends of the sleeve are annular steps, and each annular step is composed of a step sidewall and a step bottomwall. Two copper sleeves are positioned within the two annular steps, with adjacent end faces pressing against the bottom walls of the two steps, and an interference fit is formed between the outer wall of the copper sleeve and the corresponding step sidewall. The copper sleeves can be installed simply by pressing them into the sleeve, making assembly extremely convenient.

[0011] In the aforementioned translational guiding mechanism for drilling rigs, pressure rings are formed on the adjacent end faces of the two retaining rings. The pressure rings are sleeved around the guide rod, and the far ends of the two copper sleeves are pressed against the two pressure rings respectively. The retaining rings use the pressure rings to press against the copper sleeves, thereby further limiting the copper sleeves in the axial direction and improving the structural and operational stability of the guiding mechanism.

[0012] In the aforementioned translational guiding mechanism for drilling rigs, the sleeve comprises a resilient cylindrical body and a semi-circular jacket. The middle sidewall of the cylindrical body has a semi-circular notch whose shape and size match the jacket. The jacket inserts into the notch, and the inner sidewall of the jacket and the inner sidewall of the middle section of the sleeve form a central inner hole in the sleeve. The jacket is fixed to the cylindrical body by multiple bolts, and the locking bolts allow the central inner hole of the sleeve to contract and grip the guide rod. Two copper sleeves are respectively located at both ends of the cylindrical body. This design allows the guide sleeve to simultaneously possess sliding and locking functions, adapting to a wider range of working conditions and making it quite practical.

[0013] In the aforementioned translational guide mechanism for drilling rigs, the notch includes two strip edges distributed along the circumference of the guide rod, and the length of the strip edges extends along the axial direction of the guide rod; each strip edge is vertically provided with at least two threaded holes, and a through hole is provided through the sleeve. The number of through holes, threaded holes and bolts are the same and their positions correspond one-to-one. The bolt shank passes through the corresponding through hole and is screwed into the corresponding threaded hole, and the bolt head is pressed against the sleeve.

[0014] In the aforementioned translational guide mechanism for drilling rigs, the retaining ring is pressed against the end face of the sleeve, and the retaining ring is detachably fixed to the sleeve by a ring of screws.

[0015] In the aforementioned translational guide mechanism for drilling rigs, the shape and size of the pressure ring are matched with the side wall of the step, and one end of the pressure ring is inserted into the corresponding annular step for guiding the installation of the retaining ring, further facilitating assembly.

[0016] Compared with existing technologies, the translational guiding mechanism of this drilling rig has the following advantages: 1. Both ends of the guide sleeve are sealed with the guide rod through the sealing element to block external dust and other impurities outside the sealing element, so that the copper sleeve can slide in a relatively closed and clean environment. This not only ensures that the copper sleeve slides smoothly and the translation process is stable, but also reduces the wear of the copper sleeve and extends its service life.

[0017] 2. The seal and copper sleeve are respectively installed in the sleeve and the retaining ring, and the sleeve and the retaining ring are detachably fixed together, so that the copper sleeve and the seal can be replaced separately, which facilitates subsequent maintenance and reduces maintenance costs.

[0018] 3. The guide sleeve has both sliding and locking functions to adapt to more different working conditions, making it more practical. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the translational guiding mechanism for the drilling rig in Embodiment 1.

[0020] Figure 2 This is a cross-sectional schematic diagram of the translational guiding mechanism for the drilling rig in Embodiment 1.

[0021] Figure 3 This is a three-dimensional schematic diagram of the translational guide mechanism for the drilling rig in Embodiment 2.

[0022] Figure 4 This is an exploded view of the translational guide mechanism for the drilling rig in Embodiment 2.

[0023] Figure 5 This is a cross-sectional schematic diagram of the translational guide mechanism for the drilling rig in Embodiment 2.

[0024] Figure 6 This is a diagram showing the state of the drilling rig after the translational guiding mechanism is applied.

[0025] In the diagram, 1 is the guide rod; 2 is the guide sleeve; 2a is the sleeve; 2a1 is the annular step; 2a2 is the cylinder; 2a3 is the jacket; 2a4 is the notch; 2a5 is the strip edge; 2b is the retaining ring; 2b1 is the pressure ring; 3 is the copper sleeve; 4 is the seal; 5 is the bolt; and 6 is the screw. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] Example 1: As Figure 1 and Figure 6 As shown, the translational guiding mechanism for this drilling rig includes a guide rod 1 and a guide sleeve 2 sleeved outside the guide rod 1, with the guide sleeve 2 and guide rod 1 coaxially arranged. In the actual product, the guide rod 1 is in the shape of a round rod, and the guide sleeve 2 is in the shape of a cylinder.

[0028] Specifically like Figure 2 As shown, the inner diameter of the guide sleeve 2 is larger than the outer diameter of the guide rod 1. Copper sleeves 3 and annular sealing elements 4 are installed at both ends of the guide sleeve 2, with the two copper sleeves 3 positioned between the two sealing elements 4. The shape and size of the inner hole of the copper sleeve 3 match the guide rod 1, and the copper sleeve 3 fits onto the corresponding guide rod 1, allowing the guide sleeve 2 to slide smoothly on the guide rod 1 with the aid of the copper sleeves 3. The inner and outer side walls of the sealing elements 4 contact and seal with the outer wall of the guide rod 1 and the inner wall of the guide sleeve 2, respectively.

[0029] Both ends of the guide sleeve 2 are sealed to the guide rod 1 through the seal 4, preventing external dust and other impurities from entering. This allows the copper sleeve 3 to slide in a relatively closed and clean environment, ensuring smooth sliding and stable translation, while also reducing wear and extending its lifespan. The preferred type of seal 4 is a dustproof oil seal to better prevent dust and other impurities from entering. Dustproof oil seals are existing products and can be purchased directly from the market.

[0030] In this embodiment, The dustproof oil seal is installed as follows: Both ends of the guide sleeve 2 have annular positioning grooves on their inner walls, and the positioning grooves and guide sleeve 2 are coaxially arranged. The shape and size of the positioning grooves match the dustproof oil seal. The dustproof oil seal is inserted into the positioning groove, and the inner and outer walls of the dustproof oil seal are in contact with and sealed against the outer wall of the guide rod 1 and the inner wall of the positioning groove, respectively.

[0031] like Figure 1 and Figure 2 As shown, the guide sleeve 2 has the following specific structure: it includes a sleeve 2a and two retaining rings 2b respectively disposed at both ends of the sleeve 2a, with both the sleeve 2a and the retaining rings 2b fitted over the guide rod 1. At this time, both copper sleeves 3 are disposed inside the sleeve 2a; two sealing elements 4 are respectively disposed inside the two retaining rings 2b, i.e., the aforementioned positioning groove is disposed on the inner wall of the retaining rings 2b; both retaining rings 2b are detachably and sealingly connected to the sleeve 2a. By disposing of the sealing elements 4 and the copper sleeves 3 in the sleeve 2a and the retaining rings 2b respectively, and by detachably connecting the sleeve 2a and the retaining rings 2b, the copper sleeves 3 and the sealing elements 4 can be replaced individually, facilitating subsequent maintenance and reducing maintenance costs.

[0032] The installation method of the copper sleeve 3 is as follows: the inner walls of both ends of the sleeve 2a are annular steps 2a1, and the annular steps 2a1 are composed of step side walls and step bottom walls. The two copper sleeves 3 are respectively located in the two annular steps 2a1, and the adjacent end faces of the two copper sleeves 3 are pressed on the bottom walls of the two steps, and the outer wall of the copper sleeve 3 and the corresponding step side wall form an interference fit. The copper sleeves 3 can be installed by pressing them into the sleeve 2a, and the assembly is extremely convenient. Further, pressure rings 2b1 are formed on the adjacent end faces of the two retaining rings 2b, and the pressure rings 2b1 and the retaining rings 2b are coaxially arranged. The pressure rings 2b1 are sleeved on the guide rod 1, and the far end faces of the two copper sleeves 3 are pressed tightly on the two pressure rings 2b1. The retaining rings 2b use the pressure rings 2b1 to press on the copper sleeves 3 to further limit the copper sleeves 3 in the axial direction, thereby improving the structural and working stability of the guiding mechanism.

[0033] The connection between the retaining ring 2b and the sleeve 2a is as follows: the retaining ring 2b is pressed against the end face of the sleeve 2a to form a seal, and the retaining ring 2b is detachably fixed to the sleeve 2a by a ring of screws 6. Specifically, a ring of connecting holes runs axially through the retaining ring 2b, and screw holes 6 are axially opened on the end face of the sleeve 2a. The number of connecting holes and screw holes 6 are the same, and their positions correspond one-to-one. The shank of the screw 6 passes through the corresponding connecting hole and is screwed into the corresponding threaded hole to stably connect the retaining ring 2b and the sleeve 2a together. Further, the shape and size of the pressure ring 2b1 match the side wall of the step, and one end of the pressure ring 2b1 is inserted into the corresponding annular step 2a1 for guiding the installation of the retaining ring 2b, further facilitating assembly.

[0034] Example 2: The structure and principle of Example 2 are basically the same as those of Example 1, except that: Figures 3 to 5 As shown, the sleeve 2a includes a resilient cylindrical body 2a2 and a semi-circular jacket 2a3. In the actual product, both the cylindrical body 2a2 and the jacket 2a3 are made of stainless steel. Of course, it is also possible for both the cylindrical body 2a2 and the jacket 2a3 to be made of aluminum alloy.

[0035] Specifically like Figure 3 and Figure 4 As shown, the middle sidewall of the cylinder 2a2 has a semi-circular notch 2a4 whose shape and size match that of the sleeve 2a3, and the notch 2a4 is coaxially arranged with the cylinder 2a2. The sleeve 2a3 is inserted into the notch 2a4, and the inner sidewall of the sleeve 2a3 and the middle inner sidewall of the sleeve 2a form the middle inner hole of the sleeve 2a. The sleeve 2a3 is fixed to the cylinder 2a2 by multiple bolts 5, and the middle inner hole of the sleeve 2a can be contracted to clamp the guide rod 1 by locking the bolts 5. Two copper sleeves 3 are respectively set at both ends of the cylinder 2a2. With the above design, the guide sleeve 2 has both sliding and locking functions to adapt to more different working conditions, which is more practical.

[0036] The bolt 5 is installed as follows: The notch 2a4 includes two shaped edges 2a5 distributed circumferentially along the guide rod 1, with the length of each edge 2a5 extending axially along the guide rod 1. The two end faces of the sleeve 2a3 press against the two shaped edges 2a5 respectively. Each edge 2a5 has at least two threaded holes vertically formed, and the sleeve 2a3 has a through hole. The number of through holes, threaded holes, and bolts 5 are equal, and their positions correspond one-to-one. The bolt 5 shank passes through the corresponding through hole and is screwed into the corresponding threaded hole, with the bolt head pressed against the sleeve 2a3. In this embodiment, preferably, each edge 2a5 has three threaded holes; the through hole is a stepped hole, and the bolt head is positioned within the corresponding through hole.

[0037] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A translational guiding mechanism for a drilling rig, comprising a guide rod (1) and a guide sleeve (2) sleeved outside the guide rod (1), characterized in that, The inner diameter of the guide sleeve (2) is larger than the outer diameter of the guide rod (1). Both ends of the guide sleeve (2) are equipped with copper sleeves (3) and annular sealing elements (4), and the two copper sleeves (3) are located between the two sealing elements (4). The shape and size of the inner hole of the copper sleeve (3) are matched with the guide rod (1), and the copper sleeve (3) is fitted onto the corresponding guide rod (1). The inner and outer side walls of the sealing element (4) are in contact with the outer wall of the guide rod (1) and the inner wall of the guide sleeve (2) respectively.

2. The translational guiding mechanism for drilling rigs according to claim 1, characterized in that, The type of the above-mentioned seal (4) is a dustproof oil seal.

3. The translational guiding mechanism for drilling rigs according to claim 1, characterized in that, The aforementioned guide sleeve (2) includes a sleeve (2a) and two retaining rings (2b) respectively disposed at both ends of the sleeve (2a), and both the sleeve (2a) and the retaining rings (2b) are sleeved outside the guide rod (1); both copper sleeves (3) are disposed inside the sleeve (2a), and two sealing elements (4) are disposed inside the two retaining rings (2b), and both retaining rings (2b) are detachably and sealingly connected to the sleeve (2a).

4. The translational guiding mechanism for drilling rigs according to claim 3, characterized in that, Both ends of the sleeve (2a) are annular steps (2a1), and the annular steps (2a1) are composed of step side walls and step bottom walls; the two copper sleeves (3) are respectively located in the two annular steps (2a1), the adjacent end faces of the two copper sleeves (3) are respectively pressed on the bottom walls of the two steps, and the outer wall of the copper sleeve (3) forms an interference fit with the corresponding step side wall.

5. The translational guiding mechanism for drilling rigs according to claim 4, characterized in that, A pressure ring (2b1) is formed on the adjacent end face of the two retaining rings (2b). The pressure ring (2b1) is sleeved on the outside of the guide rod (1), and the far ends of the two copper sleeves (3) are pressed onto the two pressure rings (2b1).

6. The translational guiding mechanism for drilling rigs according to claim 3, characterized in that, The sleeve (2a) includes a cylindrical body (2a2) and a semi-circular jacket (2a3), both of which are elastic. The middle side wall of the cylindrical body (2a2) has a semi-circular notch (2a4) that matches the shape and size of the jacket (2a3). The jacket (2a3) is inserted into the notch (2a4), and the inner side wall of the jacket (2a3) and the middle inner side wall of the sleeve (2a) form the middle inner hole of the sleeve (2a). The jacket (2a3) is fixed to the cylindrical body (2a2) by multiple bolts (5), and the middle inner hole of the sleeve (2a) can be contracted to hold the guide rod (1) by locking the bolts (5). Two copper sleeves (3) are respectively set at both ends of the cylindrical body (2a2).

7. The translational guiding mechanism for drilling rigs according to claim 1, characterized in that, The notch (2a4) includes two strip edges (2a5) distributed circumferentially along the guide rod (1), and the length of the strip edge (2a5) extends axially along the guide rod (1); each strip edge (2a5) has at least two threaded holes vertically opened, and the sleeve (2a3) has a through hole through it. The number of through holes, threaded holes and bolts (5) are the same and their positions correspond one to one. The shank of the bolt (5) passes through the corresponding through hole and is screwed into the corresponding threaded hole. The head of the bolt (5) is pressed against the sleeve (2a3).

8. The translational guiding mechanism for drilling rigs according to claim 5, characterized in that, The retaining ring (2b) is pressed against the end face of the sleeve (2a), and the retaining ring (2b) is detachably fixed to the sleeve (2a) by a ring of screws (6).

9. The translational guiding mechanism for drilling rigs according to claim 8, characterized in that, The shape and size of the pressure ring (2b1) are matched with the side wall of the step, and one end of the pressure ring (2b1) is inserted into the corresponding annular step (2a1).

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