Gearbox applied to mud pump of drilling equipment

Abstract

The utility model relates to the technical field of gearboxes, in particular to a gearbox applied to a mud pump of drilling equipment, which comprises a gearbox body, an input shaft, an intermediate shaft and an output shaft are arranged in the gearbox body, and the input shaft is parallel to the intermediate shaft and the output shaft. A first gear set and a wet clutch are arranged on the surface of the input shaft, and a second gear set and a wet clutch are arranged on the surface of the middle shaft. The input shaft, the intermediate shaft and the output shaft are arranged in the gearbox body in parallel, power transmission among the input shaft, the intermediate shaft and the output shaft is achieved through the gear sets, and the wet clutches are arranged on the side faces of the first gear set on the surface of the input shaft and the side face of the second gear set on the surface of the intermediate shaft. The wet clutches are connected in a staggered mode, the gear shifting efficiency between adjacent gears is greatly improved, and the problem that tooth alignment between meshed gears is difficult is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, and in particular to a gearbox used in drilling equipment mud pumps. Background Technology

[0002] Currently, the diesel engines used to drive mud pumps are powered by multi-speed gearboxes to meet the pressure requirements of mud pumps under different working conditions. The existing multi-speed gearboxes are four-speed gearboxes. Their shifting method involves fixing first and second gear shift forks to the first and second gear shift fork shafts, and third and fourth gear shift forks to the third and fourth gear shift fork shafts. These shift forks connect to the gearbox's internal gears. Gear engagement is achieved by manually operating a shift lever or using a cylinder to control the shift forks. When using this gearbox, the clutch must first be disengaged, and after engaging a gear, the pneumatic clutch is inflated to transmit power. The above shifting method suffers from problems such as difficulty in meshing the gears, long clutch inflation / deflation times, and low shifting efficiency. Furthermore, with the development of drilling rig technology, the existing shifting method is no longer suitable for the needs of pump units. Therefore, it is necessary to propose a technology to improve these shortcomings. Utility Model Content

[0003] In view of the above-mentioned shortcomings and defects of existing mud pump gearboxes, in order to achieve the above objectives, this utility model provides a gearbox for drilling equipment mud pumps, comprising:

[0004] A gearbox housing, wherein an input shaft, an intermediate shaft and an output shaft are provided inside the gearbox housing, the input shaft is arranged parallel to the intermediate shaft and the output shaft, a first gear set and a wet clutch are provided on the surface of the input shaft, and a second gear set and a wet clutch are provided on the surface of the intermediate shaft.

[0005] As a preferred technical solution, the number of the first gear sets is multiple and an even number, the wet clutches are spaced apart on one side of the first gear sets, and the number of wet clutches is 1 / 2 of the number of the first gear sets.

[0006] As a preferred technical solution, the first gear set and the second gear set are used in cooperation, and the number of wet clutches disposed on the surface of the intermediate shaft is the same as the number of wet clutches disposed on the surface of the output shaft.

[0007] As a preferred technical solution, the wet clutch located on the surface of the intermediate shaft is disposed on one side of the second gear set and is not located on the same straight line as the wet clutch on the surface of the output shaft.

[0008] As a preferred technical solution, it also includes a third gear, which is disposed on the surface of the output shaft and is used in conjunction with the second gear set. An output flange is also installed on the outside of the third gear.

[0009] As a preferred technical solution, a distribution disc is also provided on the outer side of the output shaft. One end of the distribution disc is fixedly connected to the output shaft, and the other end of the distribution disc is connected to the power device.

[0010] As described above, the gearbox for a mud mixing pump in drilling equipment provided by this utility model has the following beneficial effects:

[0011] This invention features an input shaft, an intermediate shaft, and an output shaft arranged inside the gearbox housing, with the input shaft, intermediate shaft, and output shaft arranged in parallel. Power transmission between the input shaft, intermediate shaft, and output shaft is achieved using gear sets. Furthermore, wet clutches are provided on the sides of the first gear set on the surface of the input shaft and the second gear set on the surface of the intermediate shaft. The wet clutches are staggered and connected, which greatly improves the shifting efficiency between adjacent gears and effectively solves the problem of difficult gear meshing. Attached Figure Description

[0012] Figure 1 The image shown is an external view of the gearbox of this utility model.

[0013] Figure 2 This is a schematic diagram of the transmission principle of the gearbox of this utility model.

[0014] 1. Input shaft; 2. Intermediate shaft; 3. Output shaft; 4. Wet clutch; 5. First gear set; 6. Second gear set; 7. Third gear; 8. Output flange; 9. Gearbox housing; 10. Dial plate. Detailed Implementation

[0015] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0016] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Although the illustrations only show components related to the present invention and are not drawn according to the actual number, shape and size of the components, the shape, quantity, positional relationship and proportion of each component can be arbitrarily changed under the premise of realizing the technical solution of this invention, and the layout of the components may also be more complex.

[0017] Example

[0018] This embodiment provides a gearbox for use in drilling equipment mud pumps, as shown in the attached diagram. Figure 1 This device includes a gearbox housing 9, inside which are arranged an input shaft 1, an intermediate shaft 2, and an output shaft 3, such as... Figure 2 The input shaft 1, intermediate shaft 2, and output shaft 3 are arranged in parallel. A first gear set 5 is provided on the surface of the input shaft 1. The number of first gear sets 5 is set to multiple, preferably as follows: Figure 2 In this embodiment, four gears are provided, and the gears from the automatic force transmission end to the other end are named gear 1-1, gear 1-2, gear 1-3, and gear 1-4 (not labeled in the figure). The diameter of gear 1-1 to gear 1-4 increases continuously. Figure 2 From left to right. Additionally, a wet clutch 4 is also provided on the surface of the input shaft 1. Specifically, the wet clutch 4 is located on one side of the first gear set 5, and its number is half the number of the first gear set 5. Preferably, in this embodiment, the number of wet clutches 4 on the surface of the input shaft 1 is half the number of the first gear set 5, which is two, and adjacent wet clutches 4 are spaced apart. Specifically, the wet clutches 4 on the surface of the input shaft 1 are located on one side of gear 1-1 and one side of gear 1-3. A second gear set 6 is provided on the surface of the intermediate shaft 2. Multiple sets of the second gear set 6 are provided. Preferably, in this embodiment, the number of second gear sets 6 is five, and on the side of automatic force output, they are named gear 2-1, gear 2-2, gear 2-3, gear 2-4, and gear 2-5 (not labeled in the figure). Figure 2 The diameters of gears 2-1 to 2-5 decrease from left to right. Additionally, a wet clutch 4 is provided on the surface of the intermediate shaft 2. Preferably, in this embodiment, two sets of wet clutches 4 are provided, one on each side of gears 2-2 and 2-4. Furthermore, a third gear 7 is provided on the surface of the output shaft 3, located near the power output end. The third gear 7 works in conjunction with gear 2-5. An output flange 8 is also provided on one side of the output shaft 3. A distributor 10 is provided on the outside of the input shaft 3, with one end connected to the output shaft and the other end connected to the power unit.

[0019] Please refer to the appendix. Figure 1When this device is in use, when the gearbox is engaged in 1st gear, the wet clutch 4 on the side of gear 2-4 is filled with oil and engaged, while the other wet clutches 4 are disengaged. Gears 1-1 and 1-3 are separated from the input shaft 1, and gear 2-2 is separated from the intermediate shaft 2. The power unit transmits power to the input shaft 4 through the distribution wheel 10. The power in the input shaft 4 is transmitted to gear 2-4 through the output wheel 1-4. Gear 2-4 transfers power to gear 2-5 through the intermediate shaft 2. Gear 2-5 transmits power to the third gear 7, and the third gear 7 transmits power to the output shaft 3.

[0020] When the gearbox is engaged in 2nd gear, the wet clutch 4 on one side of gear 1-3 is filled with oil and engaged, while the other wet clutches 4 are disengaged. Gear 1-1 is separated from the input shaft 1, and gears 2-2 and 2-4 are separated from the intermediate shaft. The power unit transmits power to the input shaft 1 through the distributor 10. The power in the input shaft 1 is transmitted to gear 2-3 through the output wheel 1-3. Gear 2-3 is transferred to gear 2-5 through the intermediate shaft 2. Gear 2-5 transmits power to the third gear 3, and the third gear 3 transmits power to the output shaft.

[0021] When the gearbox is engaged in 3rd gear, the wet clutch on one side of gear 2-2 is filled with oil and engaged, while the other wet clutches 4 are disengaged. Gears 1-1 and 1-3 are separated from the input shaft 1, and gear 2-4 is separated from the intermediate shaft 2. The power unit transmits power to the input shaft 1 through the distributor 10. The power in the input shaft 1 is transmitted to gear 2-2 through the output wheel 1-2. Gear 2-2 is transferred to gear 2-5 through the intermediate shaft 2. Gear 2-5 transmits power to the third gear 7, and the third gear 7 transmits power to the output shaft 3.

[0022] When the gearbox is engaged in 4th gear, the wet clutch on one side of gear 1-1 is filled with oil and engaged, while the other wet clutches 4 are disengaged. Gear 1-3 is separated from the input shaft 1, and gears 2-2 and 2-4 are separated from the intermediate shaft 2. The power unit transmits power to the input shaft 1 through the distributor 10. The power in the input shaft 1 is transmitted to gear 2-1 through the output wheel 1-1. Gear 2-1 is transferred to gear 2-5 through the intermediate shaft 2. Gear 2-5 transmits power to the third gear 7, and the third gear 7 transmits power to the output shaft 3.

[0023] In summary, this utility model, by setting an input shaft, an intermediate shaft, and an output shaft inside the gearbox housing, with the input shaft, intermediate shaft, and output shaft arranged in parallel, and power transmission between each input shaft, intermediate shaft, and output shaft utilizing gear sets, and by setting wet clutches on the sides of the first gear set on the surface of the input shaft and the second gear set on the surface of the intermediate shaft, with the wet clutches being staggered and connected, greatly improves the shifting efficiency between adjacent gears and effectively solves the problem of difficult gear meshing between meshing gears.

[0024] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A gearbox for use in a mud pump of drilling equipment, comprising a gearbox housing, characterized in that, The gearbox housing is internally provided with an input shaft, an intermediate shaft, and an output shaft. The input shaft is arranged parallel to the intermediate shaft and the output shaft. A first gear set and a wet clutch are provided on the surface of the input shaft, and a second gear set and a wet clutch are provided on the surface of the intermediate shaft.

2. The gearbox for a drilling equipment mud mixing pump according to claim 1, characterized in that, The number of the first gear sets is multiple and in even numbers, and the wet clutches are spaced apart on one side of the first gear sets. The number of wet clutches is 1 / 2 of the number of the first gear sets.

3. A gearbox for a drilling equipment mud mixing pump according to claim 2, characterized in that, The first gear set and the second gear set are used in conjunction, and the number of wet clutches disposed on the surface of the intermediate shaft is the same as the number of wet clutches disposed on the surface of the output shaft.

4. A gearbox for a drilling equipment mud mixing pump according to claim 3, characterized in that, The wet clutch located on the surface of the intermediate shaft is positioned on one side of the second gear set and is not on the same straight line as the wet clutch on the surface of the output shaft.

5. A gearbox for a drilling equipment mud mixing pump according to claim 1, characterized in that, It also includes a third gear, which is disposed on the surface of the output shaft and is used in conjunction with the second gear set. An output flange is also installed on the outside of the third gear.

6. A gearbox for a drilling equipment mud mixing pump according to claim 1, characterized in that, A distribution wheel is also provided on the outside of the output shaft. One end of the distribution wheel is fixedly connected to the output shaft, and the other end of the distribution wheel is connected to the power device.

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