CN211550438U - Flow-dividing gear transmission structure of five-cylinder drilling mud pump - Google Patents
Flow-dividing gear transmission structure of five-cylinder drilling mud pump Download PDFInfo
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- CN211550438U CN211550438U CN201922145998.5U CN201922145998U CN211550438U CN 211550438 U CN211550438 U CN 211550438U CN 201922145998 U CN201922145998 U CN 201922145998U CN 211550438 U CN211550438 U CN 211550438U
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Abstract
The utility model provides a split-flow gear transmission structure of a five-cylinder drilling mud pump, which can greatly reduce the overall dimension and the weight of a crankshaft and a whole machine, the crankshaft operates stably, the vibration is small, the noise is small, and the equipment cost can be reduced, it includes the driving shaft, the bent axle, set gradually the first eccentric block on the bent axle, the second eccentric block, the third eccentric block, the fourth eccentric block, the fifth eccentric block, left ring gear assembly, right ring gear assembly, be provided with first keyway on the bent axle between first eccentric block and the second eccentric block, first keyway is equipped with first parallel key, left ring gear assembly and first parallel key connect, be provided with the second parallel key on the bent axle between fourth eccentric block and the fifth eccentric block, the second parallel key is equipped with the second parallel key, right ring gear assembly and the second parallel key connect, left ring gear assembly and right ring gear assembly axial symmetry, the driving shaft meshes with left ring gear assembly and right ring gear assembly respectively.
Description
Technical Field
The utility model relates to a petroleum industry drilling engineering field particularly, relates to a shunting gear drive structure of five jar drilling mud pumps.
Background
In the prior art, due to the requirement of the overall design structure of the drilling mud pump, a group of connecting rods need to be installed in the middle of a crankshaft, so that a gear cannot be installed in the middle of the crankshaft. For the drilling mud pump with the expanded gear transmission structure, the gear can only be installed in a deviated way, so that the crankshaft is unevenly stressed and is easy to bend and deform, and the crankshaft has poor stability and is easy to vibrate in the operation process; the stress difference of two bearings for supporting the crankshaft is large, the type of the bearing is generally determined according to the maximum stress, one bearing is fully loaded, and the margin of one bearing is large, so that the cost is increased; the contact of the gear is not good, the load is distributed unevenly along the tooth width, in order to ensure the service life of the gear, the gear modulus has to be increased, the outer diameter is increased, the overall dimension of the whole slurry pump is increased, the weight of the whole slurry pump is increased, the cost is increased, and the market competitiveness is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a five jar drilling slush pump's shunting gear drive structure, its overall dimension and weight that can greatly reduced bent axle and complete machine, the bent axle operates steadily, vibrates for a short time, and small in noise to can reduce equipment cost.
The embodiment of the utility model is realized like this:
the utility model provides a five jar drilling slush pump's shunting gear drive structure, it includes the driving shaft, the bent axle, set gradually the first eccentric block on the bent axle, the second eccentric block, the third eccentric block, the fourth eccentric block, the fifth eccentric block, left gear ring assembly, right gear ring assembly, be provided with first flat keyway on the bent axle between first eccentric block and the second eccentric block, first flat keyway is equipped with first flat key, left gear ring assembly and first flat key-type connection, be provided with the second flat keyway on the bent axle between fourth eccentric block and the fifth eccentric block, the second flat keyway is equipped with the second flat key, right gear ring assembly and second flat key-type connection, left gear ring assembly and right gear ring assembly axial symmetry, the driving shaft meshes with left gear ring assembly and right gear ring assembly respectively.
The utility model discloses a preferred embodiment, above-mentioned left ring gear assembly is the same with right ring gear assembly's structure, and left ring gear assembly includes levogyration ring gear and wheel hub spare, passes through bolted connection between levogyration ring gear and the wheel hub spare.
The utility model discloses an in the preferred embodiment, above-mentioned wheel hub spare includes transition ring flange, first wheel hub, adjusting shim, and first wheel hub sets up at the middle part of transition ring flange, and first wheel hub includes wheel hub and lower wheel hub, goes up wheel hub and passes through the staple bolt mode with lower wheel hub and connect, goes up wheel hub and is provided with adjusting shim down between the wheel hub.
In a preferred embodiment of the present invention, the hub member further includes a plastic clearance gauge disposed on a surface of the lower hub.
The utility model discloses a in the preferred embodiment, the inside of above-mentioned left and right hand ring gear is provided with flange, is provided with first screw hole on the flange, is provided with the second screw hole that matches with first screw hole position and size on the transition ring flange, and the bolt passes first screw hole and second screw hole and connects left and right hand ring gear and hub spare.
In a preferred embodiment of the present invention, the inner ring of the first hub is provided with a key groove connected with the first flat key.
In a preferred embodiment of the present invention, the first hub and the transition flange are connected by a bolt.
In the preferred embodiment of the present invention, the first hub further comprises a super nut, and the upper hub and the lower hub are connected by the super nut.
The embodiment of the utility model provides an adopt shunting gear drive structure, it has following beneficial effect:
(1) the left-handed gear ring and the right-handed gear ring are completely and symmetrically distributed on the crankshaft, the stress of the crankshaft is uniform, the torque on the dangerous section of the crankshaft is only equal to half of the transmission torque of the crankshaft, the size of the dangerous section of the crankshaft can be reduced by half, the overall size and weight of the crankshaft and the whole machine are greatly reduced, the cost is reduced, and the market competitiveness is enhanced. The crankshaft operates stably, the vibration is small, and the noise is small.
(2) The two main bearings for supporting the crankshaft are stressed in the same way, the two bearings are in the same type and size and bear the load together, the size of the bearings is relatively small, and the cost is relatively reduced.
(3) The contact between the left and right rotating gear rings and the driving shaft is good, the load is uniformly distributed along the tooth width, and each gear ring bears half of the output torque; the axial forces generated by the meshing of the gears are mutually offset, and the axial movement is small. On the premise of ensuring the service life of the gear, a smaller gear module can be selected, the outer diameter of the gear is correspondingly reduced, the overall dimension of the whole slurry pump is correspondingly reduced, the weight of the whole slurry pump is reduced, the cost is reduced, and the market competitiveness is improved.
(4) The wheel hub adopts a hoop structure, and the installation is convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a split-flow gear transmission structure according to an embodiment of the present invention;
fig. 2 is an exploded view of the split-flow gear transmission structure according to the embodiment of the present invention;
icon: 100-driving shaft; 200-a crankshaft; 210-a first eccentric mass; 220-a second eccentric mass; 230-a third eccentric mass; 240-fourth eccentric mass; 250-a fifth eccentric mass; 300-a left gear ring assembly; 400-right gear ring assembly; 201-a first keyway; 202-first flat key; 110-right-handed teeth; 120-left-handed teeth; 310-left-handed gear ring; 320-a hub member; 321-a transition flange; 322-a first hub; 323-adjusting shim; 311-connecting flange; 3221-a keyway; 3222-super nut; 410-right-handed gear ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
First embodiment
The mud pump is the extremely important and indispensable drilling equipment in the well drilling production, and for the convenience of assembly, the gear drive structural style of the drilling mud pump power end at home and abroad basically adopts the expansion structure. After the problem of difficulty in assembling the power end gear is solved, the split-flow gear transmission structure is adopted on the five-cylinder drilling mud pump for the first time.
Referring to fig. 1 and 2, the present embodiment provides a split gear transmission structure for a five-cylinder drilling mud pump, the crankshaft 200 between the first eccentric block 210 and the second eccentric block 220 is provided with a first flat key groove 201, the first flat key groove 201 is assembled with a first flat key 202, the left gear ring assembly 300 is connected with the first flat key 202, a second flat key groove is arranged on the crankshaft 200 between the fourth eccentric block 240 and the fifth eccentric block 250 and is assembled with a second flat key, the right gear ring assembly 400 is connected with the second flat key, the left gear ring assembly 300 and the right gear ring assembly 400 are axially symmetrical, and the driving shaft 100 is respectively meshed with the left gear ring assembly 300 and the right gear ring assembly 400.
In the power end split gear transmission structure of the five-cylinder drilling mud pump in the embodiment, the left gear ring assembly 300 and the right gear ring assembly 400 are symmetrically distributed on the crankshaft 200 and are respectively meshed with the right-handed teeth 110 and the left-handed teeth 120 on the driving shaft 100, which is shown in detail in fig. 1.
More specifically, the left gear ring assembly 300 and the right gear ring assembly 400 in this embodiment have the same structure, the left gear ring assembly 300 includes a left-handed gear ring 310 and a hub member 320, and the left-handed gear ring 310 and the hub member 320 are connected by a bolt.
More specifically, in order to facilitate assembly, the hub is designed into a hoop structure. Hub spare 320 includes transition ring flange 321, first wheel hub 322, adjusting shim 323, and first wheel hub 322 sets up in the middle part of transition ring flange 321, and first wheel hub 322 includes wheel hub and lower wheel hub, and upper wheel hub and lower wheel hub pass through the staple bolt mode and connect, are provided with adjusting shim 323 between upper wheel hub and the lower wheel hub. The hub member 320 further includes a plastic gap gauge provided on the surface of the lower hub for determining the thickness of the adjusting shim 323 mounted between the upper and lower hubs.
More specifically, the connection flange 311 is provided inside the left-handed gear ring 310 and the right-handed gear ring 410 in this embodiment, and is directly processed on the gear ring, the connection flange 311 is provided with a first threaded hole, the transition flange 321 is provided with a second threaded hole matched with the first threaded hole in position and size, and the bolt passes through the first threaded hole and the second threaded hole to connect the left-handed gear ring 310 and the hub 320.
More specifically, the inner ring of the first hub 322 in this embodiment is provided with a key groove 3221 connected with the first flat key 202. The first hub 322 and the transition flange 321 are connected by bolts. More specifically, the first hub 322 in this embodiment further includes a super nut 3222, the upper hub and the lower hub are connected through the super nut 3222, it can be seen from the figure that a gap is disposed at a connection position of the upper hub and the lower hub, and the super nut 3222 passes through a through hole disposed at the gap to connect with the lower hub.
The embodiment also provides an assembling method of the split gear transmission structure of the five-cylinder drilling mud pump, which comprises the following steps:
step 1: installing two adjusting gaskets 323 with the thickness of 0.38mm between the upper hub and the lower hub, and installing a plastic clearance gauge on the surface of the lower hub;
step 2: mounting the upper hub and the lower hub on the crankshaft 200, and tightening the hub mounting bolts by using a torque wrench, wherein the tightening torque is 1355 N.m;
and step 3: disassembling the hub, and measuring the reading A of the plastic clearance gauge; the thickness of the gasket required between the hubs is 0.38-A-0.076, and 0.076 is the designed interference;
and 4, step 4: mounting a hub 322, mounting an adjusting gasket 323 with the thickness of between the upper hub and the lower hub, and screwing a hub mounting bolt by using a super nut 3222;
and 5: then, the transition flange 321, the left-handed gear ring 310 and the right-handed gear ring 410 are sequentially installed, and at the moment, the left-handed gear ring 310 is installed on the crankshaft 200 between the first eccentric block 210 and the second eccentric block 220; the right-handed gear ring 410 is installed on the crankshaft 200 between the fourth eccentric mass 240 and the fifth eccentric mass 250; the left-handed gear ring 310 and the right-handed gear ring 410 are completely and symmetrically distributed on the crankshaft 200;
step 6: the driving shaft 100 is assembled such that the right-handed teeth 110 and the left-handed teeth 120 of the driving shaft 100 are engaged with the left-handed ring gear 310 and the right-handed ring gear 410, respectively.
In conclusion, this embodiment adopts the gear drive structure of shunting, and it has following beneficial effect:
(1) the left-handed gear ring assembly 300 and the right-handed gear ring assembly 400 are completely and symmetrically distributed on the crankshaft 200, the stress of the crankshaft 200 is uniform, the torque on the dangerous section of the crankshaft 200 is only equal to half of the transmission torque, the size of the dangerous section of the crankshaft 200 can be reduced by half, the overall size and the weight of the crankshaft 200 and the whole machine are greatly reduced, the cost is reduced, and the market competitiveness is enhanced. Crankshaft 200 operates smoothly, with little vibration and noise.
(2) The two main bearings supporting the crankshaft 200 are stressed in the same way, the two bearings are in the same type and size and bear load together, the size of the bearings is relatively small, and the cost is relatively reduced.
(3) The contact between the left-handed gear ring 310 and the right-handed gear ring 410 and the driving shaft 100 is good, the load is uniformly distributed along the tooth width, and each gear ring bears half of the output torque; the axial forces generated by the meshing of the gears are mutually offset, and the axial movement is small. On the premise of ensuring the service life of the gear, a smaller gear module can be selected, the outer diameter of the gear is correspondingly reduced, the overall dimension of the whole slurry pump is correspondingly reduced, the weight of the whole slurry pump is reduced, the cost is reduced, and the market competitiveness is improved.
(4) The wheel hub adopts a hoop structure, and the installation is convenient.
This description describes examples of embodiments of the invention, and is not intended to illustrate and describe all possible forms of the invention. It should be understood that the embodiments described in this specification can be implemented in many alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Specific structural and functional details disclosed are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. It will be appreciated by persons skilled in the art that a plurality of features illustrated and described with reference to any one of the figures may be combined with features illustrated in one or more other figures to form embodiments which are not explicitly illustrated or described. The described combination of features provides a representative embodiment for a typical application. However, various combinations and modifications of the features consistent with the teachings of the present invention may be used as desired for particular applications or implementations.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A split-flow gear transmission structure of a five-cylinder drilling mud pump is characterized by comprising a driving shaft, a crankshaft, a first eccentric block, a second eccentric block, a third eccentric block, a fourth eccentric block, a fifth eccentric block, a left gear ring assembly and a right gear ring assembly which are sequentially arranged on the crankshaft, a first flat key groove is arranged on the crankshaft between the first eccentric block and the second eccentric block, the first flat key groove is assembled with a first flat key, the left gear ring assembly is connected with the first flat key, a second flat key groove is arranged on the crankshaft between the fourth eccentric block and the fifth eccentric block, the second flat key groove is assembled with a second flat key, the right ring gear assembly is connected with the second flat key, the left gear ring assembly and the right gear ring assembly are axially symmetrical, and the driving shaft is respectively meshed with the left gear ring assembly and the right gear ring assembly.
2. The split gear drive configuration for a five cylinder drilling mud pump of claim 1, wherein said left gear ring assembly and said right gear ring assembly are identical in construction, said left gear ring assembly comprising a left hand gear ring and a hub member, said left hand gear ring and said hub member being bolted together.
3. The split gear drive configuration for a five cylinder drilling mud pump as set forth in claim 2, wherein said hub member comprises a transition flange, a first hub disposed at a central portion of said transition flange, said first hub comprising an upper hub and a lower hub, said upper hub and said lower hub being connected by a hoop means, and an adjustment shim disposed between said upper hub and said lower hub.
4. The split gear transmission configuration for a five cylinder drilling mud pump of claim 3, wherein said hub member further comprises a plastic clearance gauge disposed on a surface of said lower hub.
5. The split gear transmission structure for a five-cylinder drilling mud pump as claimed in claim 3, wherein said left and right hand ring gears are provided with a connecting flange on the inside thereof, said connecting flange is provided with a first threaded hole, said transition flange is provided with a second threaded hole matching with said first threaded hole in position and size, and a bolt is inserted through said first and second threaded holes to connect said left and right hand ring gears and said hub member.
6. The split gear drive configuration for a five cylinder drilling mud pump as set forth in claim 3, wherein said inner race of said first hub is provided with a keyway keyed to said first flat key.
7. The split gear drive configuration for a five cylinder drilling mud pump of claim 3, wherein said first hub and said transition flange are bolted together.
8. The split gear transmission configuration for a five cylinder drilling mud pump of claim 3, wherein said first hub further comprises a super nut, said upper hub and said lower hub being connected by said super nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922145998.5U CN211550438U (en) | 2019-12-04 | 2019-12-04 | Flow-dividing gear transmission structure of five-cylinder drilling mud pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922145998.5U CN211550438U (en) | 2019-12-04 | 2019-12-04 | Flow-dividing gear transmission structure of five-cylinder drilling mud pump |
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| Publication Number | Publication Date |
|---|---|
| CN211550438U true CN211550438U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922145998.5U Active CN211550438U (en) | 2019-12-04 | 2019-12-04 | Flow-dividing gear transmission structure of five-cylinder drilling mud pump |
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| CN (1) | CN211550438U (en) |
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