CN210290705U

CN210290705U - Input shell, speed reducer and rotary drilling rig

Info

Publication number: CN210290705U
Application number: CN201921328968.1U
Authority: CN
Inventors: 周亮; 王龙刚; 于卓伟
Original assignee: Beijing Sany Intelligent Technology Co Ltd
Current assignee: Beijing Sany Intelligent Technology Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-04-10
Anticipated expiration: 2029-08-15

Abstract

An embodiment of the utility model provides an input casing, reduction gear and dig rig soon relates to decelerator technical field. The embodiment of the utility model provides an input casing for connect speed reducer and driving piece, it includes the body and connects the permeability cell on the body. The oil expansion cavity is formed in the body and is used for being communicated with the installation cavity of the speed reducer, so that an expansion space is provided for lubricating oil when the temperature in the speed reducer rises, and the speed reducer can meet the lubricating requirement. The one end and the oily chamber intercommunication that expands of permeability cell to at the speed reducer operation in-process, gaseous accessible permeability cell business turn over speed reducer, the other end of permeability cell forms the venthole, and the height that highly is higher than permeability cell and the oily chamber intercommunication department that expands of venthole, consequently oil bubble or mix oil mist etc. in the air can follow the permeability cell inner wall cooling reflux before leaving from the venthole after getting into the permeability cell along with the air, avoid lubricating oil blowout.

Description

Input shell, speed reducer and rotary drilling rig

Technical Field

The utility model relates to a decelerator technical field particularly, relates to an input casing, reduction gear and dig rig soon.

Background

In the process of power transmission, a speed reducer is often required to be arranged between the driving part and the workpiece, so that the rotation speed matching and the torque transmission between the driving part and the workpiece are realized. And in order to ensure the normal work of the speed reducer, the speed reducer is filled with sufficient lubricating oil.

In the working process of the speed reducer, along with the increase of the continuous working time of the speed reducer, the oil temperature of lubricating oil in the speed reducer rises, oil and air expand, the internal oil level of the speed reducer is reduced, and the phenomenon of insufficient lubrication of part of bearings needing lubrication easily causes damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an input casing, for example, when it can make temperature rise in the speed reducer, prevent that lubricating oil from spilling over, guarantee the lubricated demand of speed reducer inner bearing.

The utility model discloses an aim still includes, provides a reduction gear, and it can guarantee that the bearing obtains good lubrication in the use, helps increase of service life.

The utility model discloses an aim still includes, provides a dig rig soon, and it can guarantee that the bearing obtains good lubrication in the use, helps increase of service life.

The embodiment of the utility model discloses a can realize like this:

the embodiment of the utility model provides an input shell, which is used for connecting a speed reducer and a driving piece and comprises a body and a vent pipe connected to the body; the body is provided with an oil expansion cavity which is used for being communicated with an installation cavity in the speed reducer; one end of the vent pipe is communicated with the oil expansion cavity, an air outlet is formed at the other end of the vent pipe, and the height of the air outlet is higher than that of the communicated position of the vent pipe and the oil expansion cavity.

Optionally, the height of the air outlet is higher than the height of the highest point of the oil expansion cavity.

Optionally, the body is provided with air holes; the end of the vent pipe far away from the air outlet is a mounting end, and the mounting end is detachably matched with the air vent.

Optionally, the mounting end is provided with a first threaded portion; a second threaded part is arranged in the air hole; the first threaded portion is in threaded connection with the second threaded portion.

Optionally, the input housing further includes a locking nut, and the locking nut is screwed to the first threaded portion and used for locking the vent pipe and the body.

Optionally, the input housing further comprises an oil plug; the number of the air holes is multiple, the air vent pipe can be selectively matched with one of the air holes, and the rest of the air holes are matched with the corresponding oil plugs so as to seal the rest of the air holes.

Optionally, the vent pipe is an arc pipe.

The embodiment of the utility model provides a reduction gear is still provided. The speed reducer comprises a speed reducer and any one of the input shells, wherein an oil expansion cavity of the input shell is communicated with an installation cavity of the speed reducer.

Optionally, a key groove is formed on the input shaft of the speed reducer; the input shell further comprises a rotating speed sensor which is arranged corresponding to the key groove, and the rotating speed sensor is used for detecting the rotating speed of the input shaft.

Optionally, the input housing is detachably connected to the housing of the speed reducer.

The embodiment of the utility model provides a dig the rig soon still. The rotary drilling rig comprises any one speed reducer.

The utility model discloses input casing, reduction gear and dig rig soon's beneficial effect includes, for example:

an embodiment of the utility model provides an input casing for connect speed reducer and driving piece. This input casing includes the body and connects the permeability cell on the body. The oil expansion cavity is formed in the body and is used for being communicated with the installation cavity of the speed reducer, so that an expansion space is provided for lubricating oil when the temperature in the speed reducer rises, and the speed reducer can meet the lubricating requirement. The one end and the oily chamber intercommunication that expands of permeability cell, thereby at the speed reducer operation in-process, gaseous accessible permeability cell business turn over speed reducer, the other end of permeability cell forms the venthole, the height that highly is higher than permeability cell and the oily chamber intercommunication department that expands of venthole, consequently oil bubble or mix oil mist etc. in the air can follow the air admission permeability cell after, can follow the permeability cell inner wall cooling reflux before leaving from the venthole, avoid lubricating oil blowout, further guaranteed that the speed reducer can obtain good lubricated effect, thereby help prolonging the life of speed reducer.

The embodiment of the utility model provides a reduction gear is still provided, and the reduction gear includes speed reducer and foretell input casing. Because the speed reducer comprises the input shell, the speed reducer also has the beneficial effects of good lubricating effect and long service life.

The embodiment of the utility model provides a dig rig soon still, it includes foretell reduction gear. The rotary drilling rig comprises the speed reducer, so that the rotary drilling rig has the beneficial effects of good lubricating effect and long service life.

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 diagram of a speed reducer according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an input housing in a speed reducer according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of the structure at III in FIG. 2;

FIG. 4 is an enlarged view of a portion of the structure at IV in FIG. 2;

fig. 5 is an enlarged view of a portion of the structure at v in fig. 1.

Icon: 10-a reducer; 100-a speed reducer; 110-a reducer housing; 120-an input shaft; 121-a keyway; 200-an input housing; 210-a body; 211-oil swelling cavity; 212-first opening; 213-a second opening; 214-air holes; 215-a second threaded portion; 220-a gas permeable tube; 221-a first threaded portion; 222-an air outlet; 223-locking nut; 224-a gasket; 230-oil plug; 241-a flange plate; 242-connecting hole; 243-connecting screw; 244-mounting projections; 245-a mounting groove; 246-sealing ring; 250-rotating speed sensor.

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, if the terms "upper", "lower", "inner", "outer", etc. 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 products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Fig. 1 is a schematic structural diagram of a speed reducer 10 according to this embodiment, and fig. 2 is a schematic structural diagram of an input housing 200 in the speed reducer 10 according to this embodiment. Referring to fig. 1 and fig. 2, the present embodiment provides a reducer 10, which includes a reducer 100 (described in detail later) and an input housing 200, wherein the input housing 200 is mounted on the reducer 100. Specifically, the input housing 200 has the following structure:

the input housing 200 includes a body 210 and a vent pipe 220 connected to the body 210, wherein one end of the body 210 is connected to the speed reducer 100, and the other end is used for being connected to a driving member, which is a motor in this embodiment. The oil expansion cavity 211 is formed in the body 210, the oil expansion cavity 211 is communicated with the installation cavity of the speed reducer 100, so that an expansion space is provided for lubricating oil when the temperature in the speed reducer 100 rises, and the speed reducer 100 can meet the lubricating requirement. One end of the vent pipe 220 is communicated with the oil expansion cavity 211, thereby in the running process of the speed reducer 100, the gas can pass through the vent pipe 220 and enter and exit the speed reducer 100, the other end of the vent pipe 220 forms an air outlet 222, the height of the air outlet 222 is higher than the height of the communication position of the vent pipe 220 and the oil expansion cavity 211, therefore, oil bubbles or oil mist mixed in the air can be cooled and reflowed along the inner wall of the vent pipe 220 before leaving from the air outlet 222, the spraying of lubricating oil is avoided, the speed reducer 100 is further ensured to obtain good lubricating effect, thereby being beneficial to prolonging the service life of the speed reducer 100.

The reducer 10 provided in the present embodiment is further explained below:

with reference to fig. 1 and fig. 2, the body 210 is a circular tube, and the oil expansion cavity 211 is an internal cavity of the body 210, and has two open ends, forming a first opening 212 and a second opening 213 respectively. The first opening 212 is located below the second opening 213. The input housing 200 is mounted at the input end of the speed reducer 100, and the oil expansion cavity 211 communicates with the mounting cavity of the speed reducer 100 through the first opening 212. The reduction gear 100 includes a reduction gear housing 110, in which a mounting cavity of the reduction gear 100 is formed within the reduction gear housing 110, and a reduction assembly mounted in the mounting cavity. The input shaft 120 of the reduction assembly passes through the first opening 212 into the oil expansion chamber 211. In use, the motor (not shown) is installed at an end of the input housing 200 far away from the speed reducer 100, and an output shaft (not shown) of the motor passes through the second opening 213 and enters the oil expansion cavity 211, so as to realize transmission connection with the input shaft 120. Alternatively, the input shaft 120 and the output shaft are in splined engagement.

When temperature rising, gaseous inflation in the speed reducer 100, the oil expands the chamber 211 and can provide sufficient oil expansion space for lubricating oil, avoids rising because of the inside temperature of speed reducer 100, and leads to the problem that lubricating oil inflation spills over, guarantees that the lubricating oil in the speed reducer 100 can provide sufficient lubricated effect, satisfies the user demand.

Fig. 3 is an enlarged view of a portion of the structure at iii in fig. 2. Referring to fig. 2 and 3, in the present embodiment, the input housing 200 further includes a ventilation tube 220 connected to the body 210. One end of the vent pipe 220 is communicated with the oil expansion cavity 211, the other end of the vent pipe forms an air outlet 222 communicated with the outside, air can enter and exit the oil expansion cavity 211 through the vent pipe 220, and air pressure balance in the oil expansion cavity 211 is facilitated. The height of the air outlet hole 222 is higher than the height of the communication position of the vent pipe 220 and the oil expansion cavity 211, so that after oil mist or oil bubbles mixed in air enter the vent pipe 220 along with the air and before the oil mist or the oil bubbles leave the input shell 200 from the air outlet hole 222, lubricating oil can be cooled and returned along the inner wall of the vent pipe 220, the lubricating oil is further prevented from being sprayed out, the volume of the lubricating oil in the speed reducer 100 can meet the lubricating requirement of a speed reduction assembly, and the service life of the speed reducer 100 is prolonged.

Further, the height of the air outlet hole 222 is higher than the height of the highest point of the oil expansion cavity 211. Because the height that venthole 222 is higher than the height that the chamber 211 peak is expanded to oil, the required atmospheric pressure of lubricating oil entering permeability cell 220 requires more, consequently lubricating oil gets into permeability cell 220, and the possibility that finally passes through venthole 222 blowout is less, has further guaranteed to avoid the emergence of the lubricating oil blowout condition, also provides sufficient distance for the lubricating oil that gets into permeability cell 220 simultaneously to guarantee that lubricating oil can follow the inner wall cooling oil return of permeability cell 220, thereby help guaranteeing lubricated effect.

In this embodiment, the main body 210 has a vent hole 214, and the end of the vent tube 220 away from the air outlet 222 is a mounting end detachably engaged with the vent hole 214. Specifically, the air hole 214 is formed in the wall surface of the body 210 near the second opening 213, and the position of the air hole 214 is the position where the vent pipe 220 is communicated with the oil expansion cavity 211.

Fig. 4 is an enlarged view of a portion of the structure at iv in fig. 2. Referring to fig. 3 and 4 in combination, further, the input housing 200 further includes an oil plug 230. The number of the air holes 214 is plural, and the plural air holes 214 are uniformly formed at one end of the body 210 near the second opening 213 along the circumferential direction of the body 210. When in use, the vent pipe 220 is selectively matched with one vent hole 214, and the other vent holes 214 are matched with the corresponding oil plugs 230, so that the other vent holes 214 are sealed through the oil plugs 230. Therefore, when the air-permeable pipe type speed reducer is used, a user can select the air holes 214 at proper positions to install the air-permeable pipe 220 according to requirements, and the air-permeable pipe 220 is prevented from interfering with other components, so that the influence on the work of the speed reducer 10 is avoided.

Referring to fig. 3, in the present embodiment, a first threaded portion 221 is disposed at the mounting end of the vent pipe 220, a second threaded portion 215 is disposed in the vent hole 214, and the first threaded portion 221 is screwed with the second threaded portion 215, so that the vent pipe 220 is detachably engaged with the body 210, and the vent pipe 220 is firmly and reliably connected with the body 210.

It should be noted that the connection manner of the vent tube 220 and the body 210 is not limited herein, and it should be understood that in other embodiments, the vent tube 220 and the body 210 may be detachably connected in other manners, such as plugging, according to requirements.

Further, the input housing 200 further includes a lock nut 223. A locking nut 223 is threadedly coupled to the first threaded part 221 for locking the ventilation tube 220 and the body 210. Specifically, the locking nut 223 is located outside the body 210, and by tightening the locking nut 223, the connection between the vent pipe 220 and the body 210 is firmer, the vent pipe 220 is prevented from rotating relative to the body 210 under the effect of self gravity, and meanwhile, the vent pipe 220 can be prevented from rotating relative to the body 210 due to misoperation. Further, the input housing 200 further includes a gasket 224 disposed between the lock nut 223 and the body 210, thereby sealing the vent hole 214 and preventing the leakage of the lubricant.

Further, permeability cell 220 is the arc pipe that is "L" shape for venthole 222 can reach sufficient height under the less condition of permeability cell 220 length, simultaneously, through setting permeability cell 220 to "L" shape, when the installation, installer can use the one end that permeability cell 220 set up venthole 222 as the handle, thereby drives the relative body 210 rotation of permeability cell 220, so that first screw thread portion 221 and second screw thread portion 215 spiro union.

Fig. 5 is an enlarged view of a portion of the structure at v in fig. 1. Referring to fig. 2 and 5, in the present embodiment, the input housing 200 is detachably connected to the reducer housing 110, so that a user can replace different input housings 200 according to needs during use, so that the volume of the oil expansion cavity 211 of the input housing 200 can meet the use needs of the reducer 100, and the condition of lubricating oil spraying during the use of the reducer 100 is prevented.

Specifically, the flange 241 is disposed at the lower end of the body 210, a plurality of connection holes 242 are formed in the flange 241 in the circumferential direction of the body 210, and the connection screws 243 are screwed with the speed reducer housing 110 through the connection holes 242, so that the input housing 200 is fixed to the speed reducer housing 110. Further, a mounting groove 245 is formed in the speed reducer housing 110, a mounting protrusion 244 is formed at one end, away from the main body 210, of the flange 241, and the outer peripheral surface of the mounting protrusion 244 is matched with the mounting groove 245, so that the main body 210 and the speed reducer housing 110 are positioned. Further, a sealing groove is formed in the outer peripheral surface of the mounting boss 244, and the input housing 200 further includes a sealing ring 246 disposed in the sealing groove, so that sealing is achieved by the sealing ring 246, and leakage of the lubricating oil from the joint between the input housing 200 and the reducer housing 110 is prevented.

Referring to fig. 1 and 2, in the present embodiment, the input housing 200 further includes a rotation speed sensor 250 connected to the body 210, and the rotation speed sensor 250 is used for detecting a rotation speed of the input shaft 120 of the speed reducer 100, so as to implement real-time monitoring of an operating state of the speed reducer 10, and enable a user to adjust the operating state of the speed reducer 10 according to data detected by the rotation speed sensor 250, so as to prevent the speed reducer 10 from operating at an excessive speed. Specifically, the body 210 is provided with a mounting hole, and the rotation speed sensor 250 is arranged in the mounting hole in a penetrating manner, so that the detection end of the rotation speed sensor 250 extends into the oil expansion cavity 211. The input shaft 120 in the oil expansion cavity 211 is provided with a key groove 121 for feeding back speed measurement signals, and the rotation speed sensor 250 is arranged corresponding to the key groove 121, so that the rotation speed of the input shaft 120 can be detected.

According to the input housing 200 provided in this embodiment, the working principle of the input housing 200 is:

when the input shell 200 is used, the input shell 200 is installed at the input end of the speed reducer shell 110, the oil expansion cavity 211 of the input shell 200 is communicated with the installation cavity of the speed reducer shell 110, in the working process of the speed reducer 100, due to transmission heating, the oil temperature in the installation cavity rises, gas and lubricating oil are heated and expanded to enter the oil expansion cavity 211, meanwhile, the lubricating oil is cooled and flows back on the inner wall of the input shell 200, and the speed reduction assembly in the speed reducer 100, particularly an upper end bearing of the speed reducer 100, can still obtain good lubrication. The upper end of input casing 200 is provided with permeability cell 220, and the gas outlet height of permeability cell 220 is higher than the maximum height that the oil expands chamber 211, and after the higher fluid of partial temperature or oil bubbles, the oil mist in the air etc. got into permeability cell 220, can follow the inner wall cooling reflux of permeability cell 220, has further avoided lubricating oil blowout, has guaranteed lubricated effect. Further, the input housing 200 is provided with the rotation speed sensor 250, which can monitor the rotation speed of the input shaft 120 in real time, and contributes to preventing the reduction gear unit 100 from running at an excessive speed.

The present embodiment provides an input housing 200 with at least the following advantages:

the input housing 200 provided by the embodiment has a longer length and a larger diameter than the existing input housing 200, so that a large enough oil expansion cavity 211 can be formed in the input housing 200, an oil expansion space is provided for lubricating oil, the expansion and lubrication requirements of the lubricating oil in the speed reducer 100 are met, and the service life of the speed reducer 100 is prolonged. Meanwhile, the input housing 200 is also provided with a rotation speed sensor 250, which can monitor the working state of the speed reducer 100 in real time and is helpful for preventing overspeed operation.

The reduction gear 10 according to the present embodiment includes the input housing 200, and therefore has the advantageous effects of having a good lubricating effect, having a long service life, and being capable of preventing an overspeed operation.

The embodiment also provides a rotary drilling rig (not shown in the figure), which comprises a rotary drilling rig body and the speed reducer 10. Because the rotary drilling rig comprises the reducer 10, the rotary drilling rig has the advantages of good lubricating effect, long service life and capability of preventing over-speed operation.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An input shell is used for connecting a speed reducer and a driving piece and is characterized by comprising a body and a vent pipe connected to the body; the body is provided with an oil expansion cavity which is used for being communicated with an installation cavity in the speed reducer; one end of the vent pipe is communicated with the oil expansion cavity, an air outlet is formed at the other end of the vent pipe, and the height of the air outlet is higher than that of the communicated position of the vent pipe and the oil expansion cavity.

2. An input housing as recited in claim 1, wherein the height of the exit aperture is higher than the height of the highest point of the oil expansion cavity.

3. The input housing as claimed in claim 1, wherein the body is formed with air holes; the end of the vent pipe far away from the air outlet is a mounting end, and the mounting end is detachably matched with the air vent.

4. An input housing as claimed in claim 3, wherein the mounting end is provided with a first threaded portion; a second threaded part is arranged in the air hole; the first threaded portion is in threaded connection with the second threaded portion.

5. The input housing of claim 4, further comprising a locking nut threaded to the first threaded portion and configured to lock the gas permeable tube and the body.

6. The input housing of claim 3, further comprising an oil plug; the number of the air holes is multiple, the air vent pipe can be selectively matched with one of the air holes, and the rest of the air holes are matched with the corresponding oil plugs so as to seal the rest of the air holes.

7. A decelerator comprising a decelerator and an input housing as claimed in any one of claims 1 to 6, the input housing having an oil expansion chamber in communication with a mounting chamber of the decelerator.

8. The reducer according to claim 7, wherein the input shaft of the reducer is provided with a key groove; the input shell further comprises a rotating speed sensor which is correspondingly arranged with the key groove, and the rotating speed sensor is used for detecting the rotating speed of the input shaft.

9. The reducer of claim 7, wherein the input housing is removably connected to a reducer housing of the reducer.

10. A rotary drilling rig, characterized in that it comprises a retarder according to any of claims 7-9.