Rotary drilling rig longitudinal beam with noise reduction and shock absorption structure
Patent Information
- Application Number
- CN202522240385.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-23
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-23
AI Technical Summary
[0003]传统旋挖钻机纵梁虽具备一定的承载能力，但在振动控制与噪音抑制方面存在明显短板
纵梁主体的安装槽内设置降噪机构，吸收纵梁主体工作时产生的内部振动噪音，有效降低旋挖钻机作业过程中的整体噪音污染，纵梁主体顶端的加强机构与底部的支撑机构均通过焊接固定，显著提升纵梁主体的结构强度与承载能力，避免纵梁主体在承受钻机作业载荷时发生形变或断裂，安装于纵梁主体与旋挖钻机机身侧边的减震机构，通过螺栓实现可拆卸连接，既方便减震机构的安装、维护与更换，又能缓冲纵梁主体与机身之间的振动传递，减少振动对纵梁主体及机身相关部件的损伤，提升旋挖钻机整体运行稳定性，纵梁主体采用中空矩形钢结构设计，在保证自身结构强度的同时，可减轻纵梁整体重量，降低旋挖钻机机身的承载负担，适配旋挖钻机复杂的施工工况。
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Figure CN224770153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rotary drilling rigs, and in particular to a longitudinal beam of a rotary drilling rig with a noise reduction and vibration damping structure. Background Technology
[0002] In rotary drilling rig operations, the longitudinal beam, as a key load-bearing structure connecting the chassis and the upper body, not only bears the enormous alternating loads and impact forces during drilling but also becomes the main path for vibration and noise transmission. With the advancement of urbanization, the construction environment is becoming increasingly complex. Especially when carrying out pile foundation work near noise-sensitive areas such as residential areas, hospitals, and schools, the high-intensity vibration and noise generated during the operation of rotary drilling rigs have become major problems restricting construction efficiency and causing complaints from surrounding areas.
[0003] While the longitudinal beams of traditional rotary drilling rigs have a certain load-bearing capacity, they have significant shortcomings in vibration control and noise suppression. Utility Model Content
[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this utility model provides a longitudinal beam of a rotary drilling rig with a noise reduction and vibration damping structure.
[0005] To achieve the above objectives, this utility model provides the following technical solution: The present invention relates to a longitudinal beam for a rotary drilling rig with a noise reduction and vibration damping structure, comprising: The main body of the longitudinal beam is a hollow rectangular steel structure with several mounting grooves evenly distributed on its inner wall; The noise reduction mechanism is installed inside the mounting groove of the longitudinal beam body; The reinforcing mechanism is installed at the top of the main longitudinal beam. The support mechanism is located at the bottom of the main longitudinal beam. The reinforcing and supporting mechanisms are fixed to the main body of the longitudinal beam by welding; The shock absorption mechanism is installed on the side of the longitudinal beam body and the rotary drilling rig body. The shock absorption mechanism is connected to the side of the longitudinal beam body by bolts.
[0006] Furthermore, the main body of the longitudinal beam consists of an outer steel plate and an inner steel plate, with a first sound insulation layer filling the space between the inner and outer steel plates. The mounting groove is opened on the inner wall of the inner steel plate, and the cross-section of the mounting groove is U-shaped.
[0007] Furthermore, the reinforcing mechanism consists of transverse reinforcing ribs, longitudinal reinforcing ribs, and a top cover plate. The transverse and longitudinal reinforcing ribs are welded together to form a grid-like reinforcing frame. The top cover plate covers the top of the reinforcing frame, and a second layer of sound insulation cotton is pasted on the lower surface of the top cover plate.
[0008] Furthermore, both the transverse and longitudinal stiffeners are channel steel, with the openings of the channel steel facing the interior of the longitudinal beam body. The length of the transverse stiffener is the same as the width of the longitudinal beam body, and the length of the longitudinal stiffener is the same as the length of the longitudinal beam body.
[0009] Furthermore, the support mechanism consists of a support base, a shock-absorbing rubber pad, and fixing bolts. The shock-absorbing rubber pad is located at the top of the support base, and the fixing bolts pass through the support base with a length consistent with the length of the longitudinal beam body. The upper surface of the shock-absorbing rubber pad is completely in contact with the lower surface of the longitudinal beam body. At least four fixing bolts are provided and are evenly distributed along the length of the support base.
[0010] Furthermore, the lower surface of the support base has several anti-slip protrusions evenly distributed, and the anti-slip protrusions are hemispherical in shape.
[0011] Furthermore, the noise reduction mechanism consists of a metal frame, sound-absorbing cotton, and a waterproof and breathable membrane. The sound-absorbing cotton is filled inside the metal frame, and the waterproof and breathable membrane is wrapped around the outside of the metal frame. The metal frame is a "U"-shaped structure that fits the mounting groove. The sound-absorbing cotton is made of centrifugal glass wool, and the waterproof and breathable membrane is made of polytetrafluoroethylene.
[0012] Furthermore, the damping mechanism consists of a connecting ear plate, a damping bushing, and connecting bolts. The damping bushing is located inside the connecting ear plate, and the connecting bolts pass through the connecting ear plate and the damping bushing. The connecting ear plate consists of two parallel steel plates, and the distance between the two steel plates is consistent with the side thickness of the longitudinal beam body.
[0013] In the above technical solution, the rotary drilling rig longitudinal beam with noise reduction and vibration damping structure provided by this utility model has the following beneficial effects: Noise reduction mechanisms are installed in the mounting slots of the longitudinal beam body to absorb internal vibration noise generated during operation, effectively reducing overall noise pollution during rotary drilling rig operation. The reinforcing mechanism at the top and the supporting mechanism at the bottom of the longitudinal beam body are fixed by welding, significantly improving the structural strength and load-bearing capacity of the longitudinal beam body and preventing deformation or breakage when bearing the drilling rig's operating load. The vibration damping mechanism installed on the sides of the longitudinal beam body and the rotary drilling rig body is detachably connected by bolts, which facilitates the installation, maintenance, and replacement of the vibration damping mechanism, and also buffers the vibration transmission between the longitudinal beam body and the body, reducing vibration damage to the longitudinal beam body and related components of the body, and improving the overall operational stability of the rotary drilling rig. The longitudinal beam body adopts a hollow rectangular steel structure design, which reduces the overall weight of the longitudinal beam while ensuring its own structural strength, reducing the load on the rotary drilling rig body and adapting to the complex construction conditions of the rotary drilling rig. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments will be briefly described below.
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is the utility model Figure 2 Enlarged structural diagram of section A in the middle; Figure 4 This is a schematic diagram of the reinforcing mechanism structure of this utility model; The attached diagram is labeled as follows: 1. Main longitudinal beam; 11. Outer steel plate; 12. Inner steel plate; 13. First sound insulation layer; 2. Noise reduction mechanism; 21. Metal frame; 22. Sound-absorbing cotton; 23. Waterproof and breathable membrane; 3. Reinforcing mechanism; 31. Transverse reinforcing rib; 32. Longitudinal reinforcing rib; 33. Top cover plate; 34. Second sound insulation cotton layer; 4. Support mechanism; 41. Support base; 42. Vibration-damping rubber pad; 43. Fixing bolt; 44. Anti-slip protrusion; 5. Vibration-damping mechanism; 51. Connecting ear plate; 52. Vibration-damping bushing; 53. Connecting bolt. Detailed Implementation
[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0017] like Figures 1 to 4 As shown; A longitudinal beam of a rotary drilling rig with a noise reduction and vibration damping structure according to an embodiment of this utility model includes: The main body of the longitudinal beam 1 is a hollow rectangular steel structure with several mounting grooves evenly distributed on its inner wall; Noise reduction mechanism 2 is installed inside the mounting groove of the longitudinal beam body 1; Reinforcing mechanism 3 is installed at the top of the longitudinal beam body 1; Support mechanism 4 is located at the bottom of the main body of the longitudinal beam 1; The reinforcing mechanism 3 and the supporting mechanism 4 are fixed to the longitudinal beam body 1 by welding; The shock absorption mechanism 5 is installed on the side of the longitudinal beam body 1 and the rotary drilling rig body. The shock absorption mechanism 5 is connected to the side of the longitudinal beam body 1 by bolts. By adopting the above technical solution, a noise reduction mechanism 2 is installed in the mounting groove of the longitudinal beam body 1 to absorb the internal vibration noise generated during the operation of the longitudinal beam body 1, effectively reducing the overall noise pollution during the operation of the rotary drilling rig. The reinforcing mechanism 3 at the top of the longitudinal beam body 1 and the supporting mechanism 4 at the bottom are both fixed by welding, which significantly improves the structural strength and load-bearing capacity of the longitudinal beam body 1 and prevents the longitudinal beam body 1 from deforming or breaking when bearing the drilling rig's operating load. The vibration damping mechanism 5 installed on the side of the longitudinal beam body 1 and the rotary drilling rig body is detachably connected by bolts, which not only facilitates the installation, maintenance and replacement of the vibration damping mechanism 5, but also buffers the vibration transmission between the longitudinal beam body 1 and the body, reduces the damage of vibration to the longitudinal beam body 1 and related parts of the body, and improves the overall operational stability of the rotary drilling rig. The longitudinal beam body 1 adopts a hollow rectangular steel structure design, which can reduce the overall weight of the longitudinal beam while ensuring its own structural strength, reducing the load on the rotary drilling rig body and adapting to the complex construction conditions of the rotary drilling rig.
[0018] As a preferred embodiment of the above technical solution, such as Figures 1 to 3 As shown, the main body of the longitudinal beam 1 is composed of an outer steel plate 11 and an inner steel plate 12. A first sound insulation layer 13 is filled between the inner steel plate 12 and the outer steel plate 11. The mounting groove is opened on the inner wall of the inner steel plate 12, and the cross section of the mounting groove is "U". In this embodiment, the double-layer steel plate structure composed of the outer steel plate 11 and the inner steel plate 12 significantly improves the structural rigidity and deformation resistance of the longitudinal beam body 1 compared to the single-layer steel plate design, preventing local dents or cracks in the longitudinal beam body 1 when subjected to heavy loads and vibrations during rotary drilling operations. A first sound insulation layer 13 is filled between the inner steel plate 12 and the outer steel plate 11, forming a "double-layer sound insulation protection" with the noise reduction mechanism 2 installed in the mounting groove on the inner wall of the inner steel plate 12. The first sound insulation layer 13 first blocks and absorbs the noise and vibration transmitted from the outside to the inside of the longitudinal beam body 1, and then, in conjunction with the noise reduction mechanism 2, further eliminates the vibration noise inside the longitudinal beam body 1, greatly improving the overall noise reduction effect. The mounting groove is designed with a "U"-shaped cross-section. The "U"-shaped structure not only provides a stable installation space for the noise reduction mechanism 2, but also disperses the vibration stress transmitted from the noise reduction mechanism 2 to the inner steel plate 12 through the arc-shaped inner wall of the "U"-shaped groove, reducing the risk of damage to the inner steel plate 12 due to local stress concentration.
[0019] As a preferred embodiment of the above technical solution, such as Figures 1 to 4 As shown, the reinforcing mechanism 3 consists of a transverse reinforcing rib 31, a longitudinal reinforcing rib 32 and a top cover plate 33. The transverse reinforcing rib 31 and the longitudinal reinforcing rib 32 are welded together to form a grid-like reinforcing frame. The top cover plate 33 covers the top of the reinforcing frame, and a second sound insulation cotton layer 34 is pasted on the lower surface of the top cover plate 33. Both the transverse stiffener 31 and the longitudinal stiffener 32 are channel steels, and the opening of the channel steel faces the inside of the longitudinal beam body 1. The length of the transverse stiffener 31 is the same as the width of the longitudinal beam body 1, and the length of the longitudinal stiffener 32 is the same as the length of the longitudinal beam body 1. In this embodiment, the transverse reinforcing ribs 31 and longitudinal reinforcing ribs 32 are cross-welded to form a grid-like reinforcing frame. The grid structure evenly distributes the load borne by the top of the longitudinal beam body 1 to various parts of the longitudinal beam body 1, avoiding local load concentration that could cause deformation or breakage at the top of the longitudinal beam body 1, and significantly improving the structural strength and load-bearing capacity of the top of the longitudinal beam body 1. The top cover plate 33 covers the top of the grid-like reinforcing frame, providing protection for the reinforcing frame and together with the reinforcing frame, forming a complete load-bearing surface at the top of the longitudinal beam body 1. The second sound insulation cotton layer 34 is pasted on the lower surface of the top cover plate 33, forming a multi-layered sound insulation layer with the first sound insulation surface layer 13 of the longitudinal beam body 1 and the noise reduction mechanism 2. The sound insulation system, with the second sound insulation cotton layer 34, effectively absorbs the vibration noise transmitted upward from the interior of the longitudinal beam body 1, reducing the noise transmission from the top of the longitudinal beam body 1 outward. Both the transverse reinforcing rib 31 and the longitudinal reinforcing rib 32 are channel steel with their openings facing inward towards the interior of the longitudinal beam body 1. Compared with ordinary steel plates, the channel steel structure has higher bending strength and torsional performance. The design of the openings facing inward avoids the accumulation of dust or water at the openings of the channel steel. The length of the transverse reinforcing rib 31 is consistent with the width of the longitudinal beam body 1, and the length of the longitudinal reinforcing rib 32 is consistent with the length of the longitudinal beam body 1, ensuring that the reinforcing mechanism 3 completely covers the top of the longitudinal beam body 1, so that all areas at the top of the longitudinal beam body 1 can be effectively reinforced.
[0020] As a preferred embodiment of the above technical solution, such as Figures 1 to 2 As shown, the support mechanism 4 consists of a support base 41, a shock-absorbing rubber pad 42, and a fixing bolt 43. The shock-absorbing rubber pad 42 is located at the top of the support base 41, and the fixing bolt 43 passes through the support base 41. Its length is consistent with the length of the longitudinal beam body 1. The upper surface of the shock-absorbing rubber pad 42 is completely in contact with the lower surface of the longitudinal beam body 1. At least four fixing bolts 43 are provided and are evenly distributed along the length of the support base 41. The lower surface of the support base 41 has several anti-slip protrusions 44 evenly distributed, and the anti-slip protrusions 44 are hemispherical in shape. In this embodiment, the shock-absorbing rubber pad 42 is disposed at the top of the support base 41 and is completely in contact with the lower surface of the longitudinal beam body 1. The elastic deformation of the shock-absorbing rubber pad 42 buffers the vibration transmitted downward by the longitudinal beam body 1 during operation, preventing the vibration from being directly transmitted to the support base 41 and causing overall resonance, thus reducing the damage of vibration to the bottom of the longitudinal beam body 1 and the support structure. The fixing bolt 43 passes through the support base 41 and has the same length as the longitudinal beam body 1, firmly connecting the support base 41, the shock-absorbing rubber pad 42 and the longitudinal beam body 1 into one unit, preventing relative displacement of the three when the longitudinal beam body 1 is subjected to heavy load or vibration. At least four fixing bolts 43 are evenly distributed along the length of the support base 41, which evenly distributes the connection stress to the support base 41 and the bottom of the longitudinal beam body 1, preventing excessive local bolt stress from causing loosening or breakage. The hemispherical anti-slip protrusions 44 evenly distributed on the lower surface of the support base 41 increase the friction between the support base 41 and the ground or mounting surface, preventing the support base 41 from sliding due to vibration during rotary drilling rig operation, and further improving the overall installation stability of the longitudinal beam body 1.
[0021] As a preferred embodiment of the above technical solution, such as Figures 1 to 3 As shown, the noise reduction mechanism 2 consists of a metal frame 21, sound-absorbing cotton 22, and a waterproof and breathable membrane 23. The sound-absorbing cotton 22 is filled inside the metal frame 21, and the waterproof and breathable membrane 23 is wrapped around the outside of the metal frame 21. The metal frame 21 is a "U" shaped structure that fits the mounting groove. The sound-absorbing cotton 22 is made of centrifugal glass wool, and the waterproof and breathable membrane 23 is made of polytetrafluoroethylene. In this embodiment, the "U"-shaped metal frame 21 ensures that the metal frame 21 is accurately embedded in the mounting groove, preventing the noise reduction mechanism 2 from shifting when the longitudinal beam body 1 vibrates during operation. While providing a stable mounting carrier for the sound-absorbing cotton 22, the rigid support of the metal frame 21 disperses vibration stress, reducing the local impact of the noise reduction mechanism 2 on the steel plate 12 inside the longitudinal beam body 1. The centrifugal glass wool sound-absorbing cotton 22 filled inside the metal frame 21 has excellent sound absorption and noise reduction performance, effectively absorbing the internal vibration noise generated when the longitudinal beam body 1 is working. The polytetrafluoroethylene waterproof and breathable membrane 23 wrapped on the outside of the metal frame 21 can prevent external moisture, dust and other impurities from entering the interior of the metal frame 21 and contaminating the sound-absorbing cotton 22, while ensuring air circulation inside the longitudinal beam body 1 and preventing water vapor accumulation inside the metal frame 21 from causing corrosion.
[0022] As a preferred embodiment of the above technical solution, such as Figures 1 to 2 As shown, the damping mechanism 5 consists of a connecting ear plate 51, a damping bushing 52, and a connecting bolt 53. The damping bushing 52 is located inside the connecting ear plate 51, and the connecting bolt 53 passes through the connecting ear plate 51 and the damping bushing 52. The connecting ear plate 51 consists of two parallel steel plates, and the distance between the two steel plates is consistent with the side thickness of the longitudinal beam body 1. In this embodiment, the shock-absorbing bushing 52 is disposed inside the connecting ear plate 51. The elastic deformation of the shock-absorbing bushing 52 buffers the vibration transmission between the longitudinal beam body 1 and the rotary drilling rig body, reducing the impact damage of vibration on the side of the longitudinal beam body 1 and the connection part of the body. The connecting bolt 53 passes through the structural design of the connecting ear plate 51 and the shock-absorbing bushing 52, realizing the detachable connection between the shock-absorbing mechanism 5 and the longitudinal beam body 1, which facilitates the maintenance and replacement of the shock-absorbing bushing 52 in the future. The connecting ear plate 51 is made of two parallel steel plates with a spacing consistent with the thickness of the side of the longitudinal beam body 1, which allows the side of the longitudinal beam body 1 to be embedded between the two steel plates, forming a two-way clamping on the side of the longitudinal beam body 1, and preventing the longitudinal beam body 1 from shifting laterally when subjected to force or vibration.
[0023] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A rotary drilling rig stringer with a noise reduction and shock absorption structure, characterized by, include: The main body of the longitudinal beam (1) is a hollow rectangular steel structure with several mounting grooves evenly distributed on its inner wall; The noise reduction mechanism (2) is installed inside the mounting groove of the longitudinal beam body (1); A reinforcing mechanism (3) is installed at the top of the main body of the longitudinal beam (1); The support mechanism (4) is located at the bottom of the main body of the longitudinal beam (1); The reinforcing mechanism (3) and the supporting mechanism (4) are fixed to the longitudinal beam body (1) by welding; The shock absorption mechanism (5) is installed on the side of the longitudinal beam body (1) and the rotary drilling rig body. The shock absorption mechanism (5) is connected to the side of the longitudinal beam body (1) by bolts. The noise reduction mechanism (2) consists of a metal frame (21), sound-absorbing cotton (22) and a waterproof and breathable membrane (23). The sound-absorbing cotton (22) is filled inside the metal frame (21), and the waterproof and breathable membrane (23) is wrapped around the outside of the metal frame (21). The metal frame (21) is a "U" shaped structure adapted to the mounting groove. The shock absorption mechanism (5) consists of a connecting ear plate (51), a shock absorption bushing (52), and a connecting bolt (53). The shock absorption bushing (52) is located inside the connecting ear plate (51), and the connecting bolt (53) passes through the connecting ear plate (51) and the shock absorption bushing (52). The connecting ear plate (51) consists of two parallel steel plates, and the distance between the two steel plates is consistent with the side thickness of the main body of the longitudinal beam (1).
2. The rotary drilling rig stringer with a noise reduction and damping structure according to claim 1, characterized in that, The main body of the longitudinal beam (1) is composed of an outer steel plate (11) and an inner steel plate (12). A first sound insulation layer (13) is filled between the inner steel plate (12) and the outer steel plate (11). The mounting groove is opened on the inner wall of the inner steel plate (12), and the cross section of the mounting groove is "U".
3. The rotary drilling rig stringer with a noise reduction and damping structure according to claim 1, characterized in that, The reinforcing mechanism (3) consists of a transverse reinforcing rib (31), a longitudinal reinforcing rib (32) and a top cover plate (33). The transverse reinforcing rib (31) and the longitudinal reinforcing rib (32) are welded together to form a grid-like reinforcing frame. The top cover plate (33) covers the top of the reinforcing frame. A second sound insulation cotton layer (34) is pasted on the lower surface of the top cover plate (33).
4. The rotary drilling rig stringer with a noise reduction and damping structure according to claim 3, characterized in that, Both the transverse reinforcing rib (31) and the longitudinal reinforcing rib (32) are channel steels, and the opening of the channel steel faces the interior of the longitudinal beam body (1). The length of the transverse reinforcing rib (31) is the same as the width of the longitudinal beam body (1), and the length of the longitudinal reinforcing rib (32) is the same as the length of the longitudinal beam body (1).
5. The rotary drilling rig stringer with a noise reduction and damping structure according to claim 1, wherein, The support mechanism (4) consists of a support base (41), a shock-absorbing rubber pad (42), and a fixing bolt (43). The shock-absorbing rubber pad (42) is located at the top of the support base (41). The fixing bolt (43) passes through the support base (41) and its length is consistent with the length of the longitudinal beam body (1). The upper surface of the shock-absorbing rubber pad (42) is completely in contact with the lower surface of the longitudinal beam body (1). At least four fixing bolts (43) are provided and are evenly distributed along the length direction of the support base (41).
6. The rotary drilling rig stringer with a noise reduction and damping structure according to claim 5, wherein The lower surface of the support base (41) is uniformly provided with a plurality of anti-skid protrusions (44), which are in a semispherical structure.