Damping device and drilling equipment
By designing a shock absorbing device including elastic parts and guides, the problem of easy damage to the power head of the drilling equipment is solved, and the effects of reducing impact, extending service life and improving production efficiency are achieved.
Patent Information
- Application Number
- CN202421814916.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-30
AI Technical Summary
During the working process of the drilling equipment, the power head is subjected to reaction forces and high-frequency vibration, which is prone to damage, resulting in frequent maintenance, increased costs and reduced production efficiency.
A shock absorbing device is designed, including a first joint, a guide member, a second joint and an elastic member, connected to the drilling equipment structure through the first connection part and the second connection part, absorbing the impact of the drill bit with the elastic member, and limiting movement through the guide part and the outer sleeve to slow down the reverse impact force.
Effectively reduce the impact on the power head, extend the service life of the power head, reduce maintenance and replacement costs, and improve the production efficiency of drilling equipment.
Smart Images
Figure CN222810759U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of drilling equipment, and more specifically, to a shock absorbing device and a drilling device. Background Art
[0002] The equipment for down-the-hole rock drilling is called a down-the-hole drill. During the operation of the down-the-hole drill, the power head drives the down-the-hole impactor through the drill rod to produce continuous dynamic impacts on the rock at the bottom of the hole. A piston is arranged in the down-the-hole impactor. Due to the pressure difference at both ends of the piston, the piston is pushed to move back and forth along its axial direction, thereby providing a pulse force for the drill bit to break the rock. The down-the-hole impactor will generate high-frequency vibration during operation.
[0003] This impact causes the power head to be subjected to a reaction force, which will produce a large vibration, thus easily causing damage to the power head. Frequent repairs and replacements of the power head are required, which reduces the production efficiency of the equipment and increases the cost.
[0004] Therefore, there is an urgent need for a shock absorbing device and a drilling device that can be used to reduce the impact on the power head. Utility Model Content
[0005] In order to solve the above technical problems, the present application provides a shock absorbing device, which can be used to reduce the impact on the power head. The present application also provides a drilling equipment, which can also achieve the above technical effects.
[0006] The technical solutions provided by this application are as follows:
[0007] A shock absorbing device, comprising:
[0008] A first joint, wherein a first connecting portion is provided at a rear end of the first joint;
[0009] A guide member fixedly connected to the front end of the first joint;
[0010] A second joint provided at the front end of the guide member and slidably connected to the guide member, wherein the front end of the second joint is provided with a second connecting portion;
[0011] an elastic member disposed between the guide member and the second joint;
[0012] An outer sleeve is sleeved on the outer side of the guide member and fixedly connected to the second joint, and the outer sleeve is slidably connected to the first joint.
[0013] Preferably, a guide shaft is provided at the rear end of the second joint, and the guide shaft is used to guide the elastic member;
[0014] A guide sleeve is arranged at the front end of the guide member, and the guide sleeve is sleeved on the outer side of the guide shaft. The inner wall of the guide sleeve is sealed and connected to the guide shaft via a sealing ring.
[0015] Preferably, the elastic member is sleeved on the outer side of the guide shaft, and a limiting step is provided on the outer side of the second joint;
[0016] A first gasket is sleeved on the outer side of the guide shaft, and a side of the first gasket away from the elastic member abuts against the front end surface of the guide member.
[0017] Preferably, the first joint and the outer sleeve are connected by a spline, and the second joint and the outer sleeve are connected by a thread.
[0018] Preferably, it also includes:
[0019] a first sealing member disposed between the first joint and the outer sleeve;
[0020] A second seal is disposed between the second joint and the outer sleeve.
[0021] Preferably, it also includes:
[0022] a positioning stopper disposed on the outer side of the second joint;
[0023] A second gasket is disposed between the outer sleeve and the positioning stopper.
[0024] Preferably, the first connecting portion is specifically a connecting shaft, and the connecting shaft is provided with a tapered external thread line, and the outer diameter of the connecting shaft gradually increases towards the direction approaching the second joint.
[0025] Preferably, the second connecting portion is specifically a connecting hole provided with a tapered external thread, and the diameter of the connecting hole gradually increases in a direction away from the first joint.
[0026] Preferably, it also includes:
[0027] A central air passage is axially arranged to penetrate the first joint, the guide member and the second joint.
[0028] A drilling device comprises any one of the shock absorbing devices described above.
[0029] The shock absorbing device provided by the utility model firstly comprises a first joint, a guide member, a second joint and an elastic member, wherein a first connecting portion is arranged at the rear end of the first joint, a guide member is arranged at the front end of the first joint, a second joint is arranged at the front end of the guide member, a second connecting portion is arranged at the front end of the second joint, and the first connecting portion and the second connecting portion are used to be connected with other structures of the drilling equipment, an elastic member is arranged between the guide sleeve and the second joint, the elastic member can be elastically deformed, so as to absorb the impact of the drill bit during the drilling process, a guide member is arranged between the first joint and the second joint, an elastic member is arranged between the guide member and the second joint, the guide member is fixedly connected to the first joint, and the guide member is always coaxial with the second joint during the process of limiting the movement of the first joint, thereby effectively reducing the reverse impact force on the power head and reducing the damage to the power head. Secondly, an outer sleeve is also provided, which is sleeved on the outside of the guide member, and is fixedly connected to the second joint, and is slidably connected to the first joint. When the elastic member produces elastic reset deformation, it acts on the first joint. Under the action of the outer sleeve, the first joint slides along the axial direction to avoid large deflection of the first joint during relative sliding, and to avoid excessive local force. By providing the outer sleeve, its guiding effect is better. It can be seen that compared with the prior art, the shock absorbing device in the embodiment of the utility model can be used to reduce the impact on the power head, thereby extending the service life of the power head.
[0030] The present application also provides a drilling device, including the above-mentioned shock absorbing device, which can also achieve the above-mentioned technical effects and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0032] Figure 1 A schematic structural diagram of a shock absorbing device provided in an embodiment of the utility model.
[0033] Figure numerals: 1. first joint; 2. guide member; 3. second joint; 4. elastic member; 5. outer sleeve; 6. first gasket; 7. second gasket; 8. central air channel; 11. first connecting part; 21. guide sleeve; 22. sealing ring; 31. second connecting part; 32. guide shaft; 33. positioning block; 51. first sealing member; 52. second sealing member. DETAILED DESCRIPTION
[0034] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0035] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0036] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.
[0038] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.
[0039] The embodiments of the present invention are written in a progressive manner.
[0040] like Figure 1As shown, an embodiment of the utility model provides a shock absorbing device, comprising: a first joint 1, a first connecting portion 11 is provided at the rear end of the first joint 1; a guide member 2 fixedly connected to the front end of the first joint 1; a second joint 3 arranged at the front end of the guide member 2 and slidably connected to the guide member 2, a second connecting portion 31 is provided at the front end of the second joint 3; an elastic member 4 arranged between the guide member 2 and the second joint 3; an outer sleeve 5 sleeved on the outer side of the guide member 2 and fixedly connected to the second joint, the outer sleeve 5 being slidably connected to the first joint 1.
[0041] At present, during the drilling process of drilling equipment, the impact of the drill bit on the rock formation will cause a reaction force to the power head. High-frequency vibration can easily cause damage to the power head, requiring frequent repairs and replacements of the power head, which reduces the production efficiency of the equipment and increases costs.
[0042] It should be noted that the “front end” in the present application specifically refers to the end away from the power head, and the “rear end” in the present application specifically refers to the end close to the power head.
[0043] The shock absorbing device provided by the utility model firstly comprises a first joint 1, a guide member 2, a second joint 3 and an elastic member 4, wherein a first connecting portion 11 is arranged at the rear end of the first joint 1, the guide member 2 is arranged at the front end of the first joint 1, a second joint 3 is arranged at the front end of the guide member 2, a second connecting portion 31 is arranged at the front end of the second joint 3, and is used to be connected with other structures of the drilling equipment through the first connecting portion 11 and the second connecting portion 31, an elastic member 4 is arranged between the guide member 2 and the second joint 3, and the elastic member 4 can be elastically deformed so as to absorb the impact of the drill bit during the drilling process, a guide member 2 is arranged between the first joint 1 and the second joint 3, and the guide member 2 and the second joint 3 are provided with the elastic member 4, the guide member 2 is fixedly connected to the first joint 1, and is always coaxial with the second joint 3 during the process of limiting the movement of the first joint 1 by the guide member 2, thereby effectively reducing the reverse impact force on the power head and reducing the damage to the power head. Secondly, an outer sleeve 5 is also provided, and the outer sleeve 5 is sleeved on the outside of the guide member 2. The outer sleeve 5 is fixedly connected to the second joint, and the outer sleeve 5 is slidably connected to the first joint 1. The elastic member 4 acts on the first joint 1 when it produces elastic reset deformation. Under the action of the outer sleeve 5, the first joint 1 slides along the axial direction to avoid a large deflection of the first joint 1 during the relative sliding process, and to avoid excessive local force. By providing the outer sleeve 5, its guiding effect is better. It can be seen that compared with the prior art, the shock absorbing device in the embodiment of the utility model can be used to reduce the impact on the power head, thereby extending the service life of the power head.
[0044] In the above technical solution, the elastic member 4 in the embodiment of the utility model can be an elastic pad or a spring. When the elastic member 4 is an elastic pad, the elastic pad has less deformation due to elastic deformation, but the elastic pad is often made of rubber material, which is prone to elastic failure and needs to be replaced frequently. Preferably, the elastic member 4 is specifically a spring, which is made of a rigid material and is less likely to fail than the elastic pad.
[0045] Furthermore, when the elastic member 4 is a spring, it is easy to produce a large elastic deformation when subjected to impact force. In order to avoid the elastic member 4 from being offset when it produces elastic deformation and elastic reset deformation, as one of the implementation methods, a guide shaft 32 is provided at the rear end of the second joint 3 in the shock absorbing device in the embodiment of the utility model. The guide shaft 32 is used to guide the elastic member 4. A guide sleeve 21 is provided at the front end of the guide member 2. The guide sleeve 21 is sleeved on the outside of the guide shaft 32. The coaxial movement of the first joint 1 and the second joint 3 is ensured by the guide sleeve 21 and the guide shaft 32. The inner wall of the guide sleeve 21 and the guide shaft 32 are sealed and connected with the guide shaft 32 by a sealing ring 22.
[0046] The sealing ring 22 can be any one of an O-type sealing ring, a Y-type sealing ring and a D-type sealing ring. Here, there is no specific restriction on the structural type of the sealing ring, as long as it meets the sealing performance requirements.
[0047] Specifically, on the one hand, the guide shaft 32 is used to guide the elastic deformation and elastic reset deformation of the elastic member 4 to avoid the elastic member 4 from being offset. On the other hand, the guide shaft 32 and the guide sleeve 21 cooperate with each other to ensure that the first joint 1 and the second joint 3 are coaxial to avoid axial offset between the first joint 1 and the second joint 3. In addition, the outer sleeve 5 is slidably connected to the first joint 1 to avoid relative rotation between the outer sleeve 5 and the first joint 1.
[0048] Furthermore, as one of the specific implementations, the elastic member 4 in the embodiment of the utility model is sleeved on the outer side of the guide shaft 32, and a limiting step is arranged on the outer side of the second joint 3, and the two ends of the elastic member 4 are respectively abutted against the limiting step and the first gasket 6, and the first gasket 6 is sleeved on the outer side of the guide shaft 32, and the end of the first gasket 6 away from the elastic member 4 is abutted against the front end face of the guide member 2.
[0049] The elastic member 4 is arranged between the guide member 2 and the second joint 3. When the second joint 3 is subjected to an impact reaction force, the elastic member 4 is compressed, and the first joint 1 slowly moves along the axial direction of the second joint 3. Under the action of the guide shaft 32 and the guide sleeve 21, the movement direction of the first joint 1 is prevented from being offset. Under the action of the outer sleeve 5, axial rotation between the first joint 1 and the second joint 3 is prevented.
[0050] In the above structure, as one specific implementation, the first joint 1 and the outer sleeve 5 in the embodiment of the utility model are connected by splines, and the second joint 3 and the outer sleeve 5 are fixedly connected by threads.
[0051] Specifically, the first joint 1 is connected to the outer sleeve 5 by a spline, and the first joint 1 can move axially without axial rotation between the outer sleeve 5. The second joint 3 is connected to the outer sleeve 5 by a thread, which is simple in connection and easier to disassemble.
[0052] Furthermore, as one of the implementation modes, the shock absorbing device in the embodiment of the utility model also includes a positioning block 33 and a second gasket 7, wherein the positioning block 33 is arranged on the outside of the second joint 3, and the positioning block 33 abuts against the front end surface of the outer sleeve 5, so as to position the second joint 3. In order to avoid wear of the second joint 3 or the outer sleeve 5, a second gasket 7 is arranged between the second joint 3 and the outer sleeve 5 for easier replacement.
[0053] In the above structure, as one of the implementation modes, the first connection portion 11 in the embodiment of the utility model is specifically a connection shaft, and a tapered external thread is provided on the connection shaft, and the diameter of the connection shaft gradually increases toward the direction of the first joint 1.
[0054] Furthermore, as one specific implementation method, the second connection portion 31 in the present application is specifically a connection hole, and a conical internal thread is arranged in the connection hole, and the inner diameter of the connection hole gradually increases in the direction away from the first joint 1.
[0055] Furthermore, the shock absorbing device in the present application can be arranged between the power head and the drill rod, or between the drill rods, or between the drill rods and the impactor. As one specific embodiment, when the shock absorbing device in the present application is arranged between the power head and the drill rod, the first connecting portion 11 is connected to the power head, and the second connecting portion 31 is used to connect to the drill rod; when the shock absorbing device is arranged between the drill rods, the first connecting portion 11 and the second connecting portion 31 are respectively connected to the drill rod; when the shock absorbing device is arranged between the drill rods and the impactor, the first connecting portion 11 is connected to the drill rod, and the second connecting portion 31 is connected to the joint of the impactor.
[0056] In the above structure, as one of the implementation modes, the shock absorbing device in the embodiment of the utility model also includes a central air channel 8, which is arranged through the first joint 1, the guide member 2 and the second joint 3, and provides impact force to the impactor through the central air channel 8.
[0057] Furthermore, in the above structure, in order to avoid air leakage, as one of the implementation modes, the shock absorbing device in the embodiment of the utility model also includes a first seal 51 and a second seal 52, wherein the first seal 51 is arranged between the first joint 1 and the outer sleeve 5, and the second seal 52 is arranged between the second joint 3 and the outer sleeve 5.
[0058] Furthermore, one or at least two first seals 51 may be provided, which are spaced apart along the axial direction of the first joint 1. One or two second seals 52 may be provided, and when at least two second seals 52 are provided, the second seals 52 are spaced apart along the axial direction of the second joint 3.
[0059] Furthermore, the first sealing member 51 may be any one of an O-type sealing ring, a Y-type sealing ring and a D-type sealing ring; the second sealing member 52 may be any one of an O-type sealing ring, a Y-type sealing ring and a D-type sealing ring. Here, there is no specific limitation on the structural types of the first sealing member 51 and the second sealing member 52, as long as they meet the sealing performance requirements.
[0060] The present application also provides a drilling device, comprising any of the above-mentioned shock absorbing devices.
[0061] Furthermore, the drilling equipment includes a power head, a drill rod and an impactor, wherein the shock absorbing device can be arranged between the power head and the drill rod, or the shock absorbing device is arranged between the drill rod and the impactor; or, when there are at least two drill rods, the shock absorbing device is arranged between adjacent drill rods.
[0062] Furthermore, in a drilling device, one shock absorbing device may be provided, or at least two shock absorbing devices may be provided. When at least two shock absorbing devices are provided, the shock absorbing devices are provided along the axial direction of the drill rod.
[0063] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A shock absorbing device, characterized in that: include: A first joint (1), wherein a first connecting portion (11) is provided at a rear end of the first joint (1); A guide member (2) fixedly connected to the front end of the first joint (1); A second joint (3) is arranged at the front end of the guide member (2) and is slidably connected to the guide member (2), wherein a second connecting portion (31) is arranged at the front end of the second joint (3); An elastic member (4) disposed between the guide member (2) and the second joint (3); An outer sleeve (5) is sleeved on the outside of the guide member (2) and fixedly connected to the second joint (3); the outer sleeve (5) is slidably connected to the first joint (1).
2. The shock absorbing device according to claim 1, characterized in that: A guide shaft (32) is provided at the rear end of the second joint (3), and the guide shaft (32) is used to guide the elastic member (4); A guide sleeve (21) is arranged at the front end of the guide member (2), the guide sleeve (21) being sleeved on the outside of the guide shaft (32), and the inner wall of the guide sleeve (21) and the guide shaft (32) being sealed and connected via a sealing ring (22).
3. The shock absorbing device according to claim 2, characterized in that: The elastic member (4) is sleeved on the outer side of the guide shaft (32), and a limiting step is provided on the outer side of the second joint (3); A first gasket (6) is sleeved on the outside of the guide shaft (32), wherein a side of the first gasket (6) away from the elastic member (4) abuts against a front end surface of the guide member.
4. The shock absorbing device according to any one of claims 1 to 3, characterized in that: The first joint (1) and the outer sleeve (5) are specifically connected by a spline, and the second joint (3) and the outer sleeve (5) are connected by a thread.
5. The shock absorbing device according to claim 4, characterized in that: Also includes: A first sealing member (51) disposed between the first joint (1) and the outer sleeve (5); A second sealing member (52) is arranged between the second joint (3) and the outer sleeve (5).
6. The shock absorbing device according to claim 5, characterized in that: Also includes: A positioning stopper (33) arranged on the outside of the second joint (3); A second gasket (7) is arranged between the outer sleeve (5) and the positioning stopper (33).
7. The shock absorbing device according to any one of claims 1 to 3, characterized in that: The first connecting portion (11) is specifically a connecting shaft, and the connecting shaft is provided with a tapered external thread line, and the outer diameter of the connecting shaft gradually increases in a direction approaching the second joint (3).
8. The shock absorbing device according to any one of claims 1 to 3, characterized in that: The second connection portion (31) is specifically a connection hole provided with a tapered external thread, and the diameter of the connection hole gradually increases in a direction away from the first joint (1).
9. The shock absorbing device according to any one of claims 1 to 3, characterized in that: Also includes: A central air passage (8), wherein the central air passage (8) is axially arranged to penetrate the first joint (1), the guide member (2) and the second joint (3).
10. A drilling device, characterized in that: The invention comprises the shock absorbing device according to any one of claims 1 to 9.