Drilling rig power head
By designing hydraulic oil cooling and combined transmission components within the housing of the drilling rig power head, the problems of non-compact structure and insufficient heat dissipation in the drilling rig power head are solved, achieving effective heat dissipation and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI GEOLOGICAL DRILLING EQUIP CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-14
AI Technical Summary
The existing drilling rig power head has a non-compact structure and lacks a heat dissipation device, resulting in high heat generation in the gearbox, easy aging of parts, and increased operating costs.
A drilling rig power head was designed, comprising a housing, a transmission assembly, and a shifting assembly. The housing is filled with hydraulic oil for lubrication and cooling, and combined with an observation window and a ventilation assembly, it achieves effective heat dissipation. The transmission assembly and shifting assembly are combined in a compact structure.
By using hydraulic oil cooling and a combination of transmission components, heat dissipation is improved, component life is extended, and operating costs are reduced.
Smart Images
Figure CN224497348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of geological exploration technology, specifically to a drilling rig power head. Background Technology
[0002] The drill rig power head provides torsional power and transmits torque to the drill string. Existing drill rig power heads generally lack cooling systems, and the gearbox and transmission components are separate, resulting in a non-compact structure. During operation, the gearbox on the drill rig power head generates significant heat, leading to excessively high temperatures, premature component aging, and increased operating costs. Therefore, there is an urgent need for a drill rig power head with a compact structure and effective cooling. Utility Model Content
[0003] The purpose of this invention is to provide a drilling rig power head that overcomes the aforementioned technical problems.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a drilling rig power head, characterized in that it comprises: a housing, the housing being a hexahedral structure formed by six cover plates; a transmission assembly passing through the housing; one end of the transmission assembly being driven to rotate by a power source, and the other end being connected to a drill rod; and a shifting assembly disposed within the housing and connected to the transmission assembly, for adjusting the output speed of the transmission assembly.
[0005] In some possible implementations, the drill bit power head also includes an observation window disposed on one of the cover plates of the housing for observation from outside the housing into the housing.
[0006] In some possible implementations, the drill bit power head also includes a ventilation assembly disposed on one of the cover plates of the housing for venting air from inside the housing to outside the housing and drawing air from outside the housing to inside the housing.
[0007] In some possible implementations, the ventilation assembly includes: a connector for connecting the inside of the housing and the outside of the housing, the connector being a hollow structure; a hose connected to one end of the connector located outside the housing; and an air cap connected to the hose and disposed at the other end opposite the connector.
[0008] In some possible implementations, the transmission assembly includes: an input shaft connected to the power source; one end of the input shaft is located outside the housing, and the other end is located inside the housing; an output shaft, parallel to the input shaft, with one end connected to the drill rod; the output shaft passes through the housing; a first pinion and a second pinion respectively sleeved on the input shaft; the first pinion and the second pinion have different diameters; a first gear and a second gear respectively sleeved on the output shaft; the first gear and the second gear have different diameters; the first pinion meshes with the first gear or the second pinion meshes with the second gear by adjusting the shifting assembly.
[0009] In this embodiment, the first pinion and the second pinion are spaced apart by a preset distance and are fixedly connected to the input shaft; the first gear and the second gear can slide along the axial direction of the output shaft.
[0010] In this embodiment, the diameter of the first pinion is larger than the diameter of the second pinion; the diameter of the first gear is smaller than the diameter of the second gear.
[0011] In this embodiment, the diameter of the first pinion is smaller than the diameter of the second pinion; the diameter of the first gear is larger than the diameter of the second gear.
[0012] In this embodiment, the power source is connected to a cover plate of the housing via a connecting block and is also connected to the input shaft to provide power to the input shaft.
[0013] In some possible implementations, the shifting assembly includes: a slide rod disposed within the housing, with both ends fixed to the cover plate; the slide rod is arranged parallel to the output shaft; a shift fork disposed within the housing, one end of which is sleeved on the slide rod and can slide along the axial direction of the slide rod, and the other end of which drives the first large gear and the second large gear to slide along the axial direction of the output shaft; and a wrench disposed outside the housing, connected to the shift fork via a connecting rod, wherein rotating the wrench causes the first small gear to mesh with the first large gear or the second small gear to mesh with the second large gear.
[0014] Compared with the prior art, the drilling rig power head of this utility model has the following advantages: by setting hydraulic oil in the housing and connecting the output shaft to the water source, the heat dissipation effect can be effectively improved; the shifting component and the transmission component are combined and set in the housing, resulting in a compact structure; by setting an observation window, it is convenient to observe the operation of each component in the housing and to determine whether hydraulic oil needs to be added; by setting a venting component, it is used to replace the gas generated in the power head due to the thermal expansion and contraction of hydraulic oil. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a drilling rig power head according to an embodiment of this application;
[0016] Figure 2 This is a schematic diagram showing the connection relationship between the transmission assembly and the shifting assembly according to an embodiment of this application. Detailed Implementation
[0017] Embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different examples, all of which do not depart from the scope of this utility model, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit this utility model.
[0018] It should be understood that although the terms "first," "second," etc., may be used herein to describe various features, these features should not be limited by these terms. The use of these terms is merely for distinction and should not be construed as indicating or implying relative importance. For example, without departing from the scope of the exemplary embodiments, a first feature may be referred to as a second feature, and similarly, a second feature may be referred to as a first feature.
[0019] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection, a direct connection, a welding connection, or a connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the accompanying drawings and specific circumstances.
[0020] This application provides a drilling rig power head, which is mounted on the drilling rig's support. Figure 1 This is a schematic diagram of the overall structure of a drilling rig power head according to an embodiment of this application, as shown below. Figure 1 As shown, the drilling rig power head includes: a housing 100, which is a hexahedral structure formed by six cover plates (front cover plate 101, rear cover plate 102, left cover plate 103, right cover plate 104, upper cover plate 105, and lower cover plate 106); a transmission assembly 200, which passes through the housing 100; one end of the transmission assembly 200 is driven to rotate by a power source (not shown in the figure), and the other end is connected to a drill rod (not shown in the figure); and a shifting assembly 300, which is located inside the housing 100 and connected to the transmission assembly 200, for adjusting the output speed of the transmission assembly 200.
[0021] In one specific embodiment of this application, the housing 100 is filled with hydraulic oil, which serves to lubricate and cool the interior.
[0022] In one specific embodiment of this application, combined with Figure 1 As shown, the drilling rig power head also includes an observation window 400, which is set on one of the cover plates of the housing 100. It is used to observe from the outside of the housing 100 into the housing 100, so as to check the operation of the various components inside the housing 100 and to determine whether hydraulic oil needs to be added.
[0023] In the above embodiments, combined with Figure 1 As shown, preferably, the observation window 400 is disposed on the right cover plate 104.
[0024] In one specific embodiment of this application, combined with Figure 1 As shown, the drilling rig power head also includes a ventilation component 500, which is installed on one of the cover plates of the housing 100 and is used to exhaust air from inside the housing 100 to outside the housing 100 and to draw air from outside the housing 100 to inside the housing 100.
[0025] In the above embodiments, combined with Figure 1 As shown, preferably, the ventilation component 500 is disposed on the upper cover plate 105.
[0026] In the above embodiments, combined with Figure 1 As shown, preferably, the venting assembly 500 includes: a connector 401 for connecting the inside and outside of the housing 100, the connector 501 being a hollow structure passing through the upper cover plate 105; a hose 502 connected to the end of the connector 501 located outside the housing 100; and an air cap 503 connected to the hose 502 and located at the opposite end of the connector 501. By providing the venting assembly 500, gases generated by the heating of the hydraulic oil are expelled, and air is drawn from the outside of the housing 100 into the housing 100 after the hydraulic oil has cooled.
[0027] Figure 2 This is a schematic diagram showing the connection relationship between the transmission assembly and the shift assembly according to an embodiment of this application (with the front cover 101 removed). In a specific embodiment of this application, combined with... Figure 2As shown, the transmission assembly 200 includes: an input shaft 201 connected to a power source; one end of the input shaft 201 is located outside the housing 100 (passing through the upper cover plate 105), and the other end is located inside the housing 100 (connected to the lower cover plate 106 via a bearing); an output shaft 202, arranged parallel to the input shaft 201, with one end connected to a drill rod; the output shaft 202 passes through the housing 100 (passing through the upper cover plate 105 and the lower cover plate 106, with bearings for the rotation of the output shaft respectively provided on the upper cover plate 105 and the lower cover plate 106). The first pinion 203 and the second pinion 204 are respectively sleeved on the input shaft 201; the diameters of the first pinion 203 and the second pinion 204 are different; the first gear 205 and the second gear 206 are respectively sleeved on the output shaft 202; the diameters of the first gear 205 and the second gear 206 are different; by adjusting the shifting assembly 300, the first pinion 203 and the first gear 205 can mesh and drive, or the second pinion 204 and the second gear 206 can mesh and drive.
[0028] In the above embodiments, combined with Figure 2 As shown, preferably, when the first pinion 203 meshes with the first gear 205, the second pinion 204 does not mesh with the second gear 206; when the second pinion 204 meshes with the second gear 206, the first pinion 203 does not mesh with the first gear 205, that is, the two cannot mesh with each other at the same time.
[0029] In one specific embodiment of this application, combined with Figure 2 As shown, the first pinion 203 and the second pinion 204 are spaced apart by a preset distance and are fixedly connected to the input shaft 201; the first large gear 205 and the second large gear 206 can slide along the axial direction of the output shaft 202.
[0030] In the above embodiments, combined with Figure 2 As shown, preferably, the first large gear 205 and the second large gear 206 are tightly fixed together, and the sum of the axial dimensions of the first large gear 205 and the second large gear 206 is less than a preset distance. The first large gear 205 is positioned close to the first small gear 203, and the second large gear 206 is positioned close to the second small gear 204. The assembly of the first large gear 205 and the second large gear 206 reciprocates along the output shaft 202. When the first large gear 205 meshes with the first small gear 203, the drilling rig power head runs at a first speed. When the second large gear 206 meshes with the second small gear 204, the drilling rig power head runs at a second speed. When neither of them meshes, the drilling rig power head idles.
[0031] In the above embodiments, combined with Figure 2As shown, preferably, the diameter of the first pinion 203 is smaller than the diameter of the second pinion 204; the diameter of the first gear 205 is larger than the diameter of the second gear 206. In this case, the first speed is less than the second speed.
[0032] In some other embodiments of this application, the diameter of the first pinion 203 is larger than the diameter of the second pinion 204; the diameter of the first gear 205 is smaller than the diameter of the second gear 206. In this case, the first speed is greater than the second speed.
[0033] In one specific embodiment of this application, combined with Figure 2 As shown, the power source is connected to the upper cover plate 105 of the housing 100 via a connecting block 600, and is also connected to the input shaft 201 to provide power to the input shaft 201.
[0034] In one specific embodiment of this application, combined with Figure 2 As shown, the drill pipe is connected to the output shaft 202 via a reducer 700.
[0035] In the above embodiment, preferably, the other end of the output shaft 202 opposite to the drill rod is connected to a water source (not shown in the figure), that is, the water source and the power source are located on the same side, both located on one side of the upper cover plate 105.
[0036] In one specific embodiment of this application, combined with Figure 2 As shown, the shift assembly 300 includes: a slide rod 301, which is disposed inside the housing 100 and whose two ends are fixed to the upper cover plate 105 and the lower cover plate 106 respectively; the slide rod 301 is arranged parallel to the output shaft 202; a shift fork 302, which is disposed inside the housing 100, with one end sleeved on the slide rod 301 and able to slide (reciprocate) along the axis of the slide rod, and the other end driving the first large gear 205 and the second large gear 206 to slide (reciprocate) along the axis of the output shaft 202; and a wrench 303, which is disposed outside the housing 100 and connected to the shift fork 303 through a connecting rod 304 (passing through the front cover plate 101). Rotating the wrench 303 allows the drilling rig power head to be at the first speed, the second speed, or idle speed.
[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0038] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.
Claims
1. A rig powerhead characterized by, The utility model relates to a drilling machine, comprising: a box body formed by six cover plates into a hexahedron structure; a transmission assembly arranged in the box body; one end of the transmission assembly is driven to rotate by a power source, and the other end is connected with a drill rod; a gear shifting assembly arranged in the box body and connected with the transmission assembly, used for adjusting the output rotating speed of the transmission assembly.
2. The rig power center of claim 1, wherein, The utility model further comprises an observation window arranged on one of the cover plates of the box body, used for observing the inside of the box body from the outside.
3. The rig power center of claim 1, wherein, The utility model further comprises an air passage assembly arranged on one of the cover plates of the box body, used for exhausting air from the inside of the box body to the outside and inhaling air from the outside to the inside.
4. The rig power center of claim 3, wherein, The air passage assembly comprises: a joint for connecting the inside of the box body with the outside, the joint being a hollow structure; a hose connected with one end of the joint outside the box body; an air cap connected with the hose and arranged at the other end of the joint.
5. The rig power center of claim 1, wherein, The transmission assembly comprises: an input shaft connected with the power source; one end of the input shaft is located outside the box body, and the other end is located inside the box body; an output shaft arranged in parallel with the input shaft, one end of which is connected with the drill rod; the output shaft penetrates through the box body; a first pinion and a second pinion are respectively sleeved on the input shaft; the diameters of the first pinion and the second pinion are different; a first gear and a second gear are respectively sleeved on the output shaft; the diameters of the first gear and the second gear are different; 6. The rig power center of claim 5, wherein, by adjusting the gear shifting assembly, the first pinion and the first gear are engaged in transmission, or the second pinion and the second gear are engaged in transmission.
7. The rig power center of claim 5, wherein, The first pinion and the second pinion are arranged at a preset distance apart and are fixedly connected with the input shaft; the first gear and the second gear can slide along the axial direction of the output shaft.
8. The rig power center of claim 5, wherein, The diameter of the first pinion is greater than that of the second pinion; the diameter of the first gear is smaller than that of the second gear.
9. The rig power center of claim 5, wherein, The diameter of the first pinion is smaller than that of the second pinion; the diameter of the first gear is greater than that of the second gear.
10. A rig powerhead as claimed in claims 5 to 8, characterised in that, The power source is connected with one of the cover plates of the box body through a connecting block and is connected with the input shaft to provide power to the input shaft. The gear shifting assembly comprises: a slide rod arranged in the box body and fixed at both ends on the cover plates; the slide rod is arranged in parallel with the output shaft; a shift fork arranged in the box body, one end of which is sleeved on the slide rod and can slide along the axial direction of the slide rod, and the other end drives the first gear and the second gear to slide along the axial direction of the output shaft; a wrench arranged outside the box body and connected with the shift fork through a connecting rod, and the wrench is rotated to make the first pinion and the first gear engaged in transmission or the second pinion and the second gear engaged in transmission.