Top drive planetary reducer of truck-mounted drilling rig

Abstract

The utility model discloses a truck-mounted drilling rig top drive planetary speed reducer which comprises a motor, a planetary gear, a planetary gear, a planetary gear, a planetary gear, a planetary gear and a planetary gear, and the output shaft of the motor is internally provided with a vertically-through motor channel; a sun gear channel penetrating up and down is formed in the first sun gear, and the first sun gear is in transmission connection with an output shaft of the motor through a first planetary assembly; wherein the motor channel is opposite to and communicated with the sun gear channel, a top drive main shaft passes through the motor channel and the sun gear channel, and a slurry channel penetrating up and down is arranged in the top drive main shaft. The output shaft of the motor and the planetary reducer are made into a direct connection coaxial structure, that is, the output shaft of the motor and the first sun gear are coaxially arranged, so that the overall size of the top drive is reduced, the gravity center and stress of the top drive speed reducer are optimized, and the working stability of the top drive of the truck-mounted drilling rig is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of truck-mounted drilling rig reducer, especially to a truck-mounted drilling rig top drive planetary reducer. BACKGROUND

[0002] The drilling rig top drive is generally driven by two-stage parallel shaft reducer, and the output shaft of the reducer and the output shaft of the motor are in parallel position, which causes the top drive to have large contour size and occupy the internal space of the derrick, and when the weight of the motor is large, the offset of the motor also causes the problem of unstable gravity center of the reducer, affecting the normal work of the top drive. SUMMARY

[0003] In view of the above problems existing in the prior art drilling rig top drive, the utility model is to provide a truck-mounted drilling rig top drive planetary reducer, the motor output shaft and the planetary reducer are made into a direct connection coaxial structure, that is, the motor output shaft and the first sun gear are coaxially arranged, which reduces the overall size of the top drive, optimizes the gravity center and stress of the top drive reducer, and improves the stability of the truck-mounted drilling rig top drive work.

[0004] The specific technical solutions are as follows:

[0005] A truck-mounted drilling rig top drive planetary reducer comprises:

[0006] A motor, which has a motor channel penetrating up and down in the output shaft of the motor;

[0007] A first sun gear, which has a sun gear channel penetrating up and down in the first sun gear, and is drivingly connected with the output shaft of the motor through a first planetary assembly;

[0008] Wherein, the motor channel and the sun gear channel are opposite and communicate with each other, the motor channel and the sun gear channel are for the top drive main shaft, and the top drive main shaft has a mud channel penetrating up and down in the top drive main shaft.

[0009] The truck-mounted drilling rig top drive planetary reducer, wherein the inner diameter of the motor channel is equal to the inner diameter of the sun gear channel.

[0010] The truck-mounted drilling rig top drive planetary reducer, wherein the output shaft of the motor is arranged directly above the first sun gear.

[0011] The truck-mounted drilling rig top drive planetary reducer, wherein the first sun gear is drivingly connected with a second planetary assembly, and the second planetary assembly comprises a second planet carrier, which has a planet channel penetrating up and down in the second planet carrier, and the planet channel is opposite and communicates with the sun gear channel, and the top drive main shaft is connected with the inner wall of the planet channel.

[0012] The top drive planetary reducer of the vehicle-mounted drilling rig, wherein the inner diameter of the second planetary carrier is greater than the inner diameter of the sun wheel passage.

[0013] The top drive planetary reducer of the vehicle-mounted drilling rig, wherein the output shaft of the motor is connected with the first planetary assembly through a second sun wheel.

[0014] The first planetary assembly comprises a first planetary wheel, a first planetary shaft and a first planetary carrier, the first planetary wheel is engaged with the second sun wheel, the first planetary shaft is arranged in the first planetary wheel, the first planetary carrier is fixedly connected with the first planetary shaft, and the first planetary carrier is engaged with the first sun wheel.

[0015] The top drive planetary reducer of the vehicle-mounted drilling rig, wherein the second planetary assembly further comprises a second planetary shaft and a second planetary wheel, the second planetary wheel is engaged with the first sun wheel, the second planetary shaft is arranged in the second planetary wheel, and the second planetary carrier is fixedly connected with the second planetary shaft.

[0016] The top drive planetary reducer of the vehicle-mounted drilling rig, wherein the second planetary carrier is supported in the housing through a bearing.

[0017] The housing has a first ring gear and a second ring gear inside, the first planetary wheel is engaged with the first ring gear, and the second planetary wheel is engaged with the second ring gear.

[0018] The output shaft of the motor is supported in the housing through a bearing.

[0019] The top drive planetary reducer of the vehicle-mounted drilling rig, wherein the lower part of the housing is provided with a magnetic plug and a temperature sensor.

[0020] The top drive planetary reducer of the vehicle-mounted drilling rig, wherein the side wall of the housing is provided with an inflow passage.

[0021] The output shaft of the motor is provided with a motor shaft sleeve, at least one first lubricating flow channel is arranged on the side wall of the motor shaft sleeve, and the first lubricating flow channel is communicated with the inflow passage.

[0022] The motor shaft sleeve is located above the second sun wheel.

[0023] The outer periphery of the upper end of the first planetary carrier is provided with a first oil receiving disc, and the outer periphery of the upper end of the second planetary carrier is provided with a second oil receiving disc.

[0024] The first planet carrier comprises a first upper carrier and a first lower carrier connected with each other, at least one first upper flow channel is arranged on the first upper carrier, a first lower flow channel is arranged on the first lower carrier, the first planet wheel is located between the first upper carrier and the first lower carrier, the first planet wheel is rotatably connected with the first planet shaft through a first bearing, the first upper flow channel is directed to the first bearing, and the first lower flow channel is directed to the first planet wheel and the second upper carrier respectively.

[0025] The second planet carrier comprises a second upper carrier and a second lower carrier connected with each other, at least one second upper flow channel is arranged on the second upper carrier, the second planet wheel is located between the second upper carrier and the second lower carrier, the second planet wheel is rotatably connected with the second planet shaft through at least two second bearings, and the second upper flow channel is directed to the second bearing.

[0026] At least one second lower flow channel is further arranged on the first lower carrier, and the second lower flow channel is directed to the first sun gear.

[0027] A side wall of the second planet wheel is provided with at least one second lubricating flow channel.

[0028] The top of the second planet shaft is provided with an oil receiving groove, a third lubricating flow channel is arranged in the second planet shaft, one end of the third lubricating flow channel is communicated with the oil receiving groove, and the other end of the third lubricating flow channel is directed to the space between the two second bearings.

[0029] Compared with the prior art, the technical scheme has the following beneficial effects:

[0030] The motor output shaft and the planetary reducer are directly connected and coaxially arranged, the overall size of the top drive is reduced, the gravity and stress of the top drive speed reducer are optimized, and the stability of the vehicle-mounted drilling machine top drive is improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a whole structure schematic view of the vehicle-mounted drilling machine top drive planetary reducer of the utility model;

[0032] Figure 2 It is a partial enlarged view of the vehicle-mounted drilling machine top drive planetary reducer of the utility model in Figure 1

[0033] ​In the drawing: 1, first sun gear; 2, second sun gear; 3, motor; 4, first planetary assembly; 5, second planetary assembly; 6, housing; 7, deep groove ball bearing; 11, sun gear passage; 31, output shaft; 32, motor passage; 33, motor shaft sleeve; 41, first planet carrier; 42, first planet gear; 43, first planet shaft; 44, first oil receiving disc; 45, first upper layer carrier; 46, first lower layer carrier; 47, first bearing; 51, second planet carrier; 52, second planet gear; 53, second planet shaft; 54, second oil receiving disc; 55, second upper layer carrier; 56, second lower layer carrier; 57, second bearing; 59, planetary passage; 61, first ring gear; 62, second ring gear; 63, motor end cover; 64, reduction housing; 65, mounting flange; 71, bearing seat; 72, concave cavity; 73, first mounting passage; 74, second mounting passage; 81, magnetic screw plug; 82, temperature sensor; 91, inflow passage; 92, first lubricating flow channel; 93, first upper flow channel; 94, first lower flow channel; 95, second upper flow channel; 96, second lower flow channel; 97, second lubricating flow channel; 98, oil receiving groove; 99, third lubricating flow channel. DETAILED DESCRIPTION

[0034] The utility model will be further explained in connection with the drawing and specific embodiment, but not as the limitation of the utility model.

[0035] As shown in Figure 1 and Figure 2 , a top drive planetary reducer of a vehicle-mounted drilling machine is shown, which comprises a motor 3 and a first sun gear 1, the output shaft 31 of the motor 3 has a motor passage 32 penetrating up and down, the first sun gear 1 has a sun gear passage 11 penetrating up and down, and the first sun gear 1 is connected with the output shaft 31 of the motor 3 through the first planetary assembly 4.

[0036] Further, as a preferred embodiment, the motor passage 32 and the sun gear passage 11 are opposite and communicate, the motor passage 32 and the sun gear passage 11 are for the top drive main shaft (not shown in the drawing) to pass through, and the top drive main shaft has a mud passage penetrating up and down.

[0037] Further, as a preferred embodiment, the motor passage 32 and the sun gear passage 11 are coaxially arranged.

[0038] Further, as a preferred embodiment, the inner diameter of the motor passage 32 is equal to the inner diameter of the sun gear passage 11.

[0039] Further, as a preferred embodiment, the output shaft 31 of the motor 3 is arranged directly above the first sun gear 1.

[0040] Further, as a preferred embodiment, the first sun gear 1 is drivingly connected with a second planetary assembly 5, the second planetary assembly 5 comprising: a second planetary carrier 51, the second planetary carrier 51 having a planetary passage 59 therein, the planetary passage 59 being opposite and communicating with the sun gear passage 11, and the top drive main shaft being connected with the inner wall of the planetary passage 59.

[0041] The planetary passage 59 is coaxially arranged with the sun gear passage 11.

[0042] The above is only a preferred embodiment of the present application, and does not limit the implementation and protection scope of the present application.

[0043] The present application further has the following implementation on the basis of the above:

[0044] In a further embodiment of the present application, please continue to refer to Figure 1 and Figure 2 The inner diameter of the second planetary carrier 51 is greater than the inner diameter of the sun gear passage 11.

[0045] In a further embodiment of the present application, the output shaft 31 of the motor 3 is drivingly connected with the first planetary assembly 4 through a second sun gear 2.

[0046] In a further embodiment of the present application, the first planetary assembly 4 comprises: a first planetary gear 42, a first planetary shaft 43 and a first planetary carrier 41, the first planetary gear 42 being engaged with the second sun gear 2, the first planetary shaft 43 being arranged in the first planetary gear 42, the first planetary carrier 41 being fixedly connected with the first planetary shaft 43, and the first planetary carrier 41 being engaged with the first sun gear 1.

[0047] In a further embodiment of the present application, the second planetary assembly 5 further comprises: a second planetary shaft 53 and a second planetary gear 52, the second planetary gear 52 being engaged with the first sun gear 1, the second planetary shaft 53 being arranged in the second planetary gear 52, and the second planetary carrier 51 being fixedly connected with the second planetary shaft 53.

[0048] In a further embodiment of the present application, the top drive planetary reducer of the vehicle-mounted drilling machine further comprises: a housing 6, and the second planetary carrier 51 is supported in the housing 6 through a deep groove ball bearing 7.

[0049] In a further embodiment of the present application, the housing 6 has a first ring gear 61 and a second ring gear 62 inside, the first planetary gear 42 being engaged with the first ring gear 61, and the second planetary gear 52 being engaged with the second ring gear 62.

[0050] In a further embodiment of the present application, the output shaft 31 of the motor 3 is supported in the housing through the deep groove ball bearing 7.

[0051] In a further embodiment of the utility model, the lower part of the shell 6 is provided with a magnetic screw plug 81 and a temperature sensor 82.

[0052] In a further embodiment of the utility model, the first sun gear 1 and the second planet carrier 51 are supported through deep groove ball bearings 7. The arrangement of the two deep groove ball bearings 7 is respectively conducive to the floating of the first planet carrier 41 and the second planet carrier 51 during work, reduces the uneven load coefficient of the planetary gear, and bears the weight of the upper part,

[0053] The utility model whole machine is vertically installed.

[0054] In a further embodiment of the utility model, the side wall of the shell 6 is provided with an inflow passage 91.

[0055] The outer side of the output shaft 31 of the motor 3 is provided with a motor shaft sleeve 33, and the side wall of the motor shaft sleeve 33 is provided with at least one first lubricating flow channel 92, which is communicated with the inflow passage 91.

[0056] The motor shaft sleeve 33 is located above the second sun gear 2.

[0057] The outer periphery of the upper end of the first planet carrier 41 is provided with a first oil receiving disc 44, and the outer periphery of the upper end of the second planet carrier 51 is provided with a second oil receiving disc 54.

[0058] The first planet carrier 41 comprises a first upper layer frame 45 and a first lower layer frame 46 connected with each other, at least one first upper flow channel 93 is arranged on the first upper layer frame 45, a first lower flow channel 94 is arranged on the first lower layer frame 46, the first planetary gear 42 is located between the first upper layer frame 45 and the first lower layer frame 46, the first planetary gear 42 and the first planet shaft 43 are rotationally matched through the first bearing 47, the first upper flow channel 93 faces the first bearing 47, and the first lower flow channel 94 faces the first planetary gear 42 and the second upper layer frame 56 respectively.

[0059] The second planet carrier 51 comprises a second upper layer frame 55 and a second lower layer frame 56 connected with each other, at least one second upper flow channel 95 is arranged on the second upper layer frame 55, the second planetary gear 52 is located between the second upper layer frame 55 and the second lower layer frame 56, the second planetary gear 52 and the second planet shaft 53 are rotationally matched through at least two second bearings 57, and the second upper flow channel 95 faces the second bearing 57.

[0060] At least one second lower flow channel 96 is further arranged on the first lower layer frame 46, and the second lower flow channel 96 faces the first sun gear 1.

[0061] The side wall of the second planetary gear 52 is radially provided with at least one second lubricating flow channel 97.

[0062] The top of the second planetary shaft 53 is provided with an oil receiving groove 98, and the second planetary shaft 53 is internally provided with a third lubricating flow channel 99, one end of the third lubricating flow channel 99 is communicated with the oil receiving groove 98, and the other end of the third lubricating flow channel 99 is directed towards between the two second bearings 57.

[0063] In a further embodiment of the utility model, the shell 6 includes a motor end cover 63, a reduction shell 64 and a mounting flange 65 fixedly connected in sequence from top to bottom, the inflow channel 91 is arranged on the side wall of the motor end cover 63, the first ring gear 61 and the second ring gear 2 are arranged on the inner wall of the reduction shell 64, the mounting flange 65 is supported and matched with the second planetary carrier 51 through the deep groove ball bearing 7, the bearing seat 71 is mounted on the mounting flange 65 and matched with the deep groove ball bearing 7, the first installation channel 73 and the second installation channel 74 are arranged on the side wall of the mounting flange 65, the magnetic screw plug 81 is mounted on the first installation channel 73, and the temperature sensor 82 is mounted on the second installation channel 74.

[0064] In a further embodiment of the utility model, the concave cavity 72 is formed between the inner wall of the mounting flange 65 and the bearing seat 71, and the first installation channel 73 and the second installation channel 74 are respectively communicated with the concave cavity 72. The magnetic screw plug 81 is used to adsorb the particles generated by gear friction, so as to avoid damaging the bearing and the tooth surface. The temperature sensor 82 monitors the lubricating oil temperature in the speed reducer.

[0065] After the lubricating oil flows into the inflow channel 91, the lubricating oil is dispersed to the periphery to improve the lubricating effect, the lubricating oil flowing down between the inflow channel 91 and the first lubricating channel 92 reaches the upper end of the first planetary carrier 41, enters the first bearing 47 through the first upflow channel 93, and then enters the first downflow channel 94 and the second downflow channel 96, the lubricating oil in the second downflow channel 96 enters the first sun gear 1, the lubricating oil in the first downflow channel 94 enters the second upper carrier 55 and then enters the second upflow channel 93 and the oil receiving groove 98 in sequence, the lubricating oil in the second upflow channel 95 enters the second bearing 57, the lubricating oil in the oil receiving groove 98 enters the second bearing 57 through the third lubricating flow channel 99, and finally flows into the concave cavity 72.

[0066] The utility model discloses a planetary gear transmission has large bearing capacity and high transmission efficiency.

[0067] The above only is the preferable embodiment of the utility model, and does not therefore limit the implementation mode and protection scope of the utility model, and for the person skilled in the art, should be able to realize that the scheme obtained by equivalent replacement and obvious change of the utility model specification and drawing content all should include in the protection scope of the utility model.

Claims

1. A top drive planetary reducer for a truck-mounted drilling rig, characterized in that, The utility model relates to a mud pump top drive system, comprising: a motor having a motor channel passing through up and down in the output shaft of the motor; a first sun gear having a sun gear channel passing through up and down in the first sun gear, the first sun gear and the output shaft of the motor being connected through a first planetary assembly; wherein the motor channel and the sun gear channel are opposite and communicate, and the motor channel and the sun gear channel are for the top drive main shaft, the top drive main shaft having a mud channel passing through up and down in the top drive main shaft.

2. The top drive planetary reducer for a truck-mounted drilling rig of claim 1, characterized in that, The inner diameter of the motor channel is equal to the inner diameter of the sun gear channel.

3. The top drive planetary reducer for a truck-mounted drilling rig of claim 1, wherein, The output shaft of the motor is located directly above the first sun gear.

4. The top drive planetary reducer for a truck-mounted drilling rig of claim 2, wherein, The first sun gear is connected with a second planetary assembly, the second planetary assembly comprising: a second carrier having a planetary channel in the second carrier, the planetary channel being opposite and communicating with the sun gear channel, and the top drive main shaft being connected with the inner wall of the planetary channel.

5. The top drive planetary reducer for a truck-mounted drilling rig of claim 4, wherein, The inner diameter of the second carrier is greater than the inner diameter of the sun gear channel.

6. The top drive planetary reducer for a truck-mounted drilling rig of claim 4, wherein, The output shaft of the motor and the first planetary assembly are connected through a second sun gear; The first planetary assembly comprises: a first planetary gear, a first planetary shaft and a first carrier, the first planetary gear being engaged with the second sun gear, the first planetary shaft being arranged in the first planetary gear, the first carrier being fixedly connected with the first planetary shaft, and the first carrier being engaged with the first sun gear.

7. The top drive planetary reducer for a truck-mounted drilling rig of claim 6, wherein, The second planetary assembly further comprises: a second planetary shaft and a second planetary gear, the second planetary gear being engaged with the first sun gear, the second planetary shaft being arranged in the second planetary gear, and the second carrier being fixedly connected with the second planetary shaft.

8. The top drive planetary reducer of claim 7, wherein, Further comprising: a housing, the second carrier being supported in the housing through a bearing; the housing having a first ring gear and a second ring gear inside, the first planetary gear being engaged with the first ring gear, and the second planetary gear being engaged with the second ring gear; the output shaft of the motor being supported in the housing through a bearing.

9. The top drive planetary reducer for a truck-mounted drilling rig of claim 8, wherein, The lower part of the housing is provided with a magnetic plug and a temperature sensor.

10. The top drive planetary reducer for a truck-mounted drilling rig of claim 8, wherein, An inflow channel is provided on the side wall of the housing; a motor shaft sleeve is provided outside the output shaft of the motor, at least one first lubricating flow channel being provided on the side wall of the motor shaft sleeve, the first lubricating flow channel communicating with the inflow channel; the motor shaft sleeve is located above the second sun gear; a first oil receiving disc is provided on the outer periphery of the upper end of the first carrier, and a second oil receiving disc is provided on the outer periphery of the upper end of the second carrier; the first carrier comprises a first upper carrier and a first lower carrier connected with each other, at least one first upper flow channel being provided on the first upper carrier, and a first lower flow channel being provided on the first lower carrier, the first planetary gear being located between the first upper carrier and the first lower carrier, the first planetary gear and the first planetary shaft being rotatably connected through a first bearing, and the first upper flow channel facing the first bearing; The second carrier comprises a second upper carrier and a second lower carrier connected with each other, at least one second upper flow channel is arranged on the second upper carrier, the second planetary gear is located between the second upper carrier and the second lower carrier, the second planetary gear is rotatably connected with the second planetary shaft through at least two second bearings, and the second upper flow channel is directed towards the second bearings; The first lower flow channel is directed towards the first planetary gear and the second upper carrier respectively; At least one second lower flow channel is further arranged on the first lower carrier, and the second lower flow channel is directed towards the first sun gear; At least one second lubricating flow channel is arranged on the side wall of the second planetary gear; An oil receiving groove is arranged on the top of the second planetary shaft, a third lubricating flow channel is arranged in the second planetary shaft, one end of the third lubricating flow channel is communicated with the oil receiving groove, and the other end of the third lubricating flow channel is directed towards the two second bearings.

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