CN115718202A - Gear box speed measuring device and gear box - Google Patents
Gear box speed measuring device and gear box Download PDFInfo
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- CN115718202A CN115718202A CN202211497457.9A CN202211497457A CN115718202A CN 115718202 A CN115718202 A CN 115718202A CN 202211497457 A CN202211497457 A CN 202211497457A CN 115718202 A CN115718202 A CN 115718202A
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- speed
- gearbox
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- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 238000012360 testing method Methods 0.000 claims description 25
- 238000005259 measurement Methods 0.000 claims description 17
- 239000003921 oil Substances 0.000 description 46
- 239000010687 lubricating oil Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000005355 Hall effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention provides a speed measuring device of a gearbox, which is used for detecting the rotating speed of a power output shaft of the gearbox, wherein an output gear is arranged on the power output shaft, and the speed measuring device of the gearbox comprises a speed measuring gear output shaft, a speed measuring gear and a rotating speed sensor. The speed measuring gear output shaft is used for being in transmission connection with one end of the power output shaft along the extending direction of the power output shaft, so that the rotating speeds of the speed measuring gear output shaft and the power output shaft are the same. The speed measuring gear is in transmission connection with the speed measuring gear output shaft and has the same rotating speed as the speed measuring gear output shaft and the power output shaft, the number of teeth of the speed measuring gear is larger than the number of teeth of the output gear, and the rotating speed sensor is used for measuring the rotating speed of the speed measuring gear. The rotating speed of the power output shaft is obtained by measuring the rotating speed of the speed measuring gear, and meanwhile, the rotating speed precision is higher than that obtained by measuring the output gear. The gearbox provided by the invention comprises a gearbox body and a gearbox speed measuring device.
Description
Technical Field
The invention relates to the technical field of gear boxes, in particular to a gear box speed measuring device and a gear box.
Background
The straddle type monorail vehicle is greatly different from common steel wheel vehicles such as subways, light rails and the like in structure and appearance, the vehicle runs straddling on a single rail beam, and the travelling wheels are carried by rubber pneumatic tires instead of steel wheels of the traditional vehicle.
The existing gearbox speed measurement scheme of the straddle type monorail vehicle is that a speed measurement sensor is installed on a power output shaft of a gearbox, an output gear on the power output shaft is used as a speed measurement gear, a general output gear is a driven helical gear, the main function of the speed measurement scheme is torque transmission, the speed measurement scheme has the characteristics of large modulus and few teeth, the speed measurement precision is low due to the fact that the output gear is used as the speed measurement gear, and on the premise that the requirement for the accuracy degree of driving data is higher and higher, the speed measurement requirement cannot be met.
Therefore, how to improve the speed measurement accuracy of the gearbox becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a speed measuring device for a gearbox to improve the speed measuring accuracy of the gearbox.
The invention also aims to provide a gearbox with the speed measuring device of the gearbox.
In order to achieve the purpose, the invention provides the following technical scheme:
a gearbox speed sensor for detecting the rotational speed of the power take-off shaft of a gearbox, the power take-off shaft being provided with an output gear, comprising:
the speed measuring gear output shaft is used for being connected to one end of the power output shaft in a transmission mode along the extension direction of the power output shaft;
the speed measuring gear is in transmission connection with the output shaft of the speed measuring gear, and the number of teeth of the speed measuring gear is greater than that of the output gear;
and the rotating speed sensor is used for measuring the rotating speed of the speed measuring gear.
Preferably, in the above gearbox speed measuring device, the speed measuring gear output shaft comprises:
the first end of the gear mounting part is a connecting end plate, and the speed measuring gear is fixedly sleeved at the second end of the gear mounting part;
the first end of the output shaft matching part is connected to the connecting end plate, the second end of the output shaft matching part extends towards the speed measuring gear and is in nested fit with the end hole of the power output shaft, and a gap is formed between the output shaft matching part and the gear mounting part;
and the output shaft connecting part is connected to the second end of the output shaft matching part and is used for being connected with the end face of the power output shaft.
Preferably, in the above-mentioned gear box speed measuring device, the output shaft connecting portion, the output shaft engaging portion and the gear mounting portion are of an integral structure, and the output shaft connecting portion is mounted on an end surface of the power output shaft by a fastener.
A gearbox, comprising:
the gearbox comprises a gearbox body, a power output shaft and a transmission mechanism, wherein the gearbox body is rotatably provided with the power output shaft;
the speed measuring device of the gearbox is characterized in that the speed measuring gear output shaft is in transmission connection with one end of the power output shaft along the extending direction of the power output shaft, and the rotating speed sensor is arranged on the gearbox body.
Preferably, in the above gear box, the rotation speed sensors are hall sensors and are two sensors disposed in the gear box.
Preferably, in the above-described gear box, the gear box body includes:
the power output shaft is rotatably arranged in the box body;
the output shaft outer end cover is arranged on one side of the box body, and the speed measuring gear output shaft penetrates through the output shaft outer end cover;
the connection lid tests the speed, set up in the outer end cover of output shaft is kept away from one side of box body, just test the speed connect the lid with form the gear chamber that tests the speed between the outer end cover of output shaft, the gear that tests the speed set up in the gear chamber tests the speed, revolution speed sensor set up in the cavity wall in gear chamber tests the speed.
Preferably, in the above-described gear box, the output shaft outer end cover includes:
the supporting end plate is provided with a supporting hole for the output shaft of the speed measuring gear to pass through;
first connecting portion and second connecting portion all set up in the outside of supporting the end plate, and respectively to the both sides of supporting the end plate extend, the one end embedding of first connecting portion the tip of box body is downthehole, just the outside of first connecting portion be provided with the mounting plate that the terminal surface of box body is connected, the second connecting portion with it connects to test the speed the connection lid, just support end plate, second connecting portion with it forms to test the speed between the connection lid the gear chamber tests the speed.
Preferably, in the above gear box, the output shaft of the speed measuring gear and the support hole are sealed by a labyrinth type sealing structure.
Preferably, in the above gearbox, the output shaft of the speed measuring gear is provided with an oil through groove, and one side of the support end plate, which is close to the power output shaft, is provided with an oil guide plate for guiding oil into the oil through groove.
Preferably, in the above-mentioned gear box, the support end plate is provided with an oil return channel, and two ends of the oil return channel are respectively communicated with the speed measuring gear cavity and the box body;
the box body is provided with first oil inlet, first connecting portion are provided with the second oil inlet, first oil inlet with the second oil inlet intercommunication.
The invention provides a speed measuring device of a gearbox, which is used for detecting the rotating speed of a power output shaft of the gearbox, wherein an output gear is arranged on the power output shaft, and the speed measuring device of the gearbox comprises a speed measuring gear output shaft, a speed measuring gear and a rotating speed sensor. The speed measuring gear output shaft is used for being in transmission connection with one end of the power output shaft along the extending direction of the power output shaft, so that the rotating speeds of the speed measuring gear output shaft and the power output shaft are the same. The speed measuring gear is in transmission connection with the speed measuring gear output shaft and has the same rotating speed as the speed measuring gear output shaft and the power output shaft, the number of teeth of the speed measuring gear is larger than the number of teeth of the output gear, and the rotating speed sensor is used for measuring the rotating speed of the speed measuring gear. The rotating speed of the power output shaft is obtained by measuring the rotating speed of the speed measuring gear, and meanwhile, the rotating speed precision is higher than that obtained by measuring the output gear.
The gearbox provided by the invention comprises a gearbox body and a gearbox speed measuring device. The gearbox housing internal rotation is provided with power output shaft, and the gearbox speed measuring device is foretell gearbox speed measuring device, and speed measuring gear output shaft is connected in power output shaft's one end along power output shaft's extending direction transmission, and speed sensor sets up in the gearbox housing. The speed measuring device of the gearbox has the advantages, and the description is omitted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a gearbox according to an embodiment of the present invention;
FIG. 2 is a schematic view of a partial structure of a gearbox provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram of an oil passage of a speed measuring device of a gearbox according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a gearbox speed measurement device according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at K;
fig. 6 is a partial sectional view of an output shaft of a speed measuring gear according to an embodiment of the present invention;
fig. 7 is a cross-sectional view of an output shaft of a speed measuring gear according to an embodiment of the present invention.
The device comprises a speed measuring gear, a speed measuring gear output shaft, a gear mounting part, a connecting end plate, an output shaft matching part, an output shaft connecting part, an oil through groove, a shaft connecting hole, a speed measuring gear, a speed sensor and a shaft end nut, wherein 10 is the speed measuring gear output shaft, 11 is the gear mounting part, 12 is the connecting end plate, 13 is the output shaft matching part, 14 is the output shaft connecting part, 15 is the oil through groove, 16 is the shaft connecting hole, 20 is the speed measuring gear, 30 is the speed sensor and 40 is the shaft end nut;
100 is a gear box body, 110 is a box body, 111 is a first oil inlet channel, 112 is a second oil inlet channel, 120 is an outer end cover of an output shaft, 121 is an oil guide plate, 122 is an oil return channel, 130 is a speed measurement connecting cover, 140 is an inner end cover of the output shaft, 150 is a power output shaft, 151 is an inner ring of a tapered roller bearing, 152 is an outer ring of the tapered roller bearing, 153 is a spline, 160 is an output gear, and 170 is an oil accumulation pool.
Detailed Description
The invention discloses a speed measuring device of a gearbox, which aims to improve the speed measuring precision of the gearbox.
The invention also discloses a gearbox with the gearbox speed measuring device.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below are not intended to limit the scope of the present invention as set forth in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.
As shown in fig. 1, the speed measuring device for a gearbox according to the embodiment of the present invention is used for detecting a rotational speed of a power output shaft 150 of the gearbox, and an output gear 160 is disposed on the power output shaft 150. In the prior art, the output gear 160 is used as a speed measuring gear, and since the function of the speed measuring gear is to transmit torque and the number of teeth is small, the detection precision of the speed sensor 30 for determining the rotation speed by detecting the gear teeth of the output gear 160 is low.
Based on this, the gearbox speed measuring device disclosed by the embodiment of the invention comprises a speed measuring gear output shaft 10, a speed measuring gear 20 and a rotating speed sensor 30.
The speed measuring gear output shaft 10 is used for being in transmission connection with one end of the power output shaft 150 along the extending direction of the power output shaft 150, and can be specifically connected with one end of the power output shaft 150 in a direct connection mode, so that the speed measuring gear output shaft 10 and the power output shaft 150 have the same rotating speed, and the rotating speed of the power output shaft 150 can be indirectly obtained by detecting the rotating speed of the speed measuring gear output shaft 10. If the transmission connection between the power output shaft 150 and the speed measuring gear output shaft 10 is realized through a transmission device, the rotation speed change caused by the transmission ratio can be counteracted through software.
The speed measuring gear 20 is connected to the speed measuring gear output shaft 10 in a transmission manner, so that the speed measuring gear 20 and the speed measuring gear output shaft 10 have the same rotating speed, and further, the speed measuring gear 20 and the power output shaft 150 have the same rotating speed, so that the rotating speed of the power output shaft 150 can be indirectly obtained by detecting the rotating speed of the speed measuring gear 20. And the number of teeth of the speed measuring gear 20 is greater than that of the output gear 160. Specifically, the speed measuring gear 20 and the speed measuring gear output shaft 10 can be connected through a key, and meanwhile, the speed measuring gear output shaft 10 is provided with a limit step, and the speed measuring gear 20 can be pressed on the limit step of the speed measuring gear output shaft 10 through the shaft end nut 40. Those skilled in the art will understand that the more the number of teeth of the speed measuring gear 20, the higher the measurement accuracy, but the greater the difficulty of manufacturing, and those skilled in the art can design the number of teeth of the speed measuring gear 20 as desired.
And the rotating speed sensor 30 is used for measuring the rotating speed of the speed measuring gear 20.
The gearbox speed measuring device disclosed by the invention can indirectly obtain the rotating speed of the power output shaft 150 by detecting the rotating speed of the speed measuring gear 20. Compared with the prior art that the rotating speed of the power output shaft 150 is obtained by measuring the rotating speed of the output gear 160, the rotating speed of the power output shaft 150 is obtained by detecting the rotating speed of the speed measuring gear 20 with more teeth than the output gear 160, and the speed measuring precision is improved.
In order to make the speed measuring gear output shaft 10 better perform the function of transmitting power, the speed measuring gear output shaft 10 includes a gear mounting portion 11, an output shaft fitting portion 13 and an output shaft connecting portion 14, in combination with fig. 6 and 7.
The first end of gear mounting portion 11 is for connecting end plate 12, connects end plate 12 and is used for being connected with output shaft cooperation portion 13, and the gear 20 that tests the speed is fixed suit in the second end of gear mounting portion 11 for gear 20 and gear mounting portion 11 have the same rotational speed that tests the speed.
The first end of the output shaft matching part 13 is connected to the connecting end plate 12, and the second end extends towards the direction of the speed measuring gear 20, that is, the output shaft matching part 13 and the speed measuring gear 20 are positioned at the same side of the connecting end plate 12, and the output shaft matching part 13 and the gear mounting part 11 have a certain overlapping interval along the extending direction of the power output shaft 150; the second end of the output shaft matching part 13 is in nested fit with the end hole of the power output shaft 150 to form positioning, so that the connection strength between the speed measuring gear output shaft 10 and the power output shaft 150 can be enhanced; a gap is provided between the output shaft engaging portion 13 and the gear mounting portion 11 for forming a cavity to engage with an oil passage in the gear case.
In a specific embodiment of the present disclosure, the output shaft connecting portion 14, the output shaft matching portion 13 and the gear mounting portion 11 are an integrated structure, so that the speed measuring gear output shaft 10 has sufficient connection strength. And the output shaft connecting portion 14 is mounted on the end surface of the power output shaft 150 by a fastener. Specifically, the fastening member may be a bolt, the output shaft connecting portion 14 is provided with a shaft connecting hole 16, and the fastening member is threaded on the threaded hole of the power output shaft 150 through the shaft connecting hole 16.
The invention also discloses a gearbox, which comprises a gearbox body 100 and a gearbox speed measuring device. A power output shaft 150 is rotatably provided in the gear housing 100 for outputting power. The gearbox speed measuring device is the gearbox speed measuring device, the speed measuring gear output shaft 10 is in transmission connection with one end of the power output shaft 150 along the extending direction of the power output shaft 150, and the rotating speed sensor 30 is arranged on the gearbox body 100. The speed measuring device of the gearbox has the advantages, and therefore the advantages are achieved, and the detailed description is omitted.
Specifically, the power output shaft 150 is connected with an output gear 160 in a transmission manner, the output gear 160 is sleeved on the power output shaft 150, and the power output shaft 150 is connected with the output gear 160 through a connecting member, which may be a bolt. The power output shaft 150 and the gear housing 100 can be rotatably connected by a tapered roller bearing, and the tapered roller bearing comprises a tapered roller bearing inner ring 151 and a tapered roller bearing outer ring 152. End ports at two ends of the gear box body 100 are respectively provided with an output shaft inner end cover 140 and an output shaft outer end cover 120 through bolt connection, and the output shaft inner end cover 140 and the output shaft outer end cover 120 are sealed with the gear box body 100 through O-shaped sealing rings. Two sets of tapered roller bearings are arranged on the power output shaft 150, inner rings 151 of the tapered roller bearings of the two tapered roller bearings are respectively sleeved at two ends of the power output shaft 150, the power output shaft 150 is arranged in the gear box body 100, and outer rings 152 of the tapered roller bearings of the two tapered roller bearings are respectively arranged at one sides of the output shaft inner end cover 140 and the output shaft outer end cover 120 facing the gear box body 100, so that the power output shaft 150 is rotatably arranged in the gear box body 100.
In order to improve the speed measurement accuracy, the rotation speed sensor 30 is a hall sensor. The hall sensor is a magnetoelectric sensor based on the hall effect, the speed measuring gear 20 is made of a material with good magnetic conductivity, and due to the hall effect, when the speed measuring gear 20 rotates, the magnetic field inside the hall sensor changes once when the speed measuring gear rotates by one tooth root and tooth top, different hall electromotive forces are generated and recorded as a change period, and the rotating speed of the power output shaft 150 can be calculated by calculating the time of the change period.
In order to prevent the revolution speed sensors 30 from being failed in the operation process, the revolution speed sensors 30 are arranged on two of the gearbox housing 100, when one revolution speed sensor 30 fails, the other revolution speed sensor can be used as a backup to prevent the transmission of the speed measurement data of the gearbox power output shaft 150 from being untimely due to the failure of one revolution speed sensor 30.
In order to better perform the function of the gearbox 100, the gearbox housing 100 includes a housing body 110, an output shaft outer end cover 120 and a speed measuring connection cover 130.
The power output shaft 150 is rotatably disposed in the box body 110, and is used for performing power output in transmission cooperation with the output gear 160. Further, the power output shaft 150 is provided with an output shaft inner hole, the output shaft inner hole is communicated with the end hole of the power output shaft 150 and is used for being in transmission fit with the driving shaft, and the output shaft inner hole and the driving shaft can be connected through a spline 153.
The outer end cover 120 of the output shaft is disposed on one side of the box body 110, which is prior art and will not be described herein. The speed measuring gear output shaft 10 penetrates through the output shaft outer end cover 120, and one end extending out of the box body 110 is used for being in transmission fit with the speed measuring gear 20.
It can be understood by those skilled in the art that, compared with the method of installing the speed measuring gear 20 beside the output gear 160 and inserting the probe of the rotation speed sensor 30 into the box body 110, the gearbox disclosed in the present invention has a compact structural design, and the existing structure of the gearbox is ensured as much as possible, and the gearbox is changed by a small amount, so that the modified gearbox has a small volume and a light weight. Meanwhile, the accuracy of speed measurement is improved, and the influence of factors such as vibration on the service life of the speed sensor 30 after the probe of the speed sensor 30 extends into the box body 110 is avoided.
In order to realize the multiple functions of support, sealing, and the like of the output shaft outer end cover 120, referring to fig. 2, the output shaft outer end cover 120 includes a support end plate, a first connecting portion, and a second connecting portion.
And a supporting hole for the speed measuring gear output shaft 10 to pass through is formed in the supporting end plate, and the gear mounting part 11 of the speed measuring gear output shaft 10 passes through the supporting hole and is in transmission connection with the speed measuring gear 20.
The first connecting portion and the second connecting portion are arranged on the outer side of the supporting end plate and extend to the two sides of the supporting end plate respectively. One end of the first connecting portion is embedded into the end hole of the box body 110, and is used for being matched with the supporting end plate and sealing the box body 110, and a fastening plate connected with the end face of the box body 110 is arranged outside the first connecting portion and is used for fixing the output shaft outer end cover 120 and the box body 110. Specifically, the mounting plate is provided with a through hole, the end surface of the box body 110 is provided with a threaded hole, and the bolt passes through the through hole and is locked with the threaded hole in a threaded fit manner. The second connecting portion are connected with the connection lid 130 that tests the speed, and support end plate, second connecting portion and test the speed and be connected and form the gear chamber that tests the speed between the lid 130, provide inclosed operational environment for gear 20 tests the speed.
In a specific embodiment of the disclosure, two mounting seats are arranged on the second connecting portion, and each mounting seat is respectively provided with one rotation speed sensor 30, an included angle of the two rotation speed sensors 30 on a mounting plane of the second connecting portion is 30 °, and the rotation speed sensors 30 and the second connecting portion are sealed by an O-ring. The second connecting portion is connected to the speed measuring connecting cover 130 by a bolt.
In order to prevent the lubricating oil in the case body 110 from excessively flowing into the speed measuring gear cavity from the gap between the support hole of the support end plate and the speed measuring gear output shaft 10, the speed measuring gear output shaft 10 and the support hole are sealed by a labyrinth type sealing structure in combination with fig. 4 and 5.
Since each transmission part in the gear housing 100 needs lubrication of the lubricating oil during operation, the gear housing 100 is provided with a structure for guiding the flow of the lubricating oil so that the lubricating oil can flow through the gear housing 100. With reference to fig. 6 and 7, the speed measuring gear output shaft 10 is provided with an oil through groove 15, the oil through groove 15 is located on the connecting end plate 12 of the gear mounting portion 11 and is communicated with an inner hole of the output shaft 150, and an oil guide plate 121 for guiding oil to the oil through groove 15 is arranged on one side of the supporting end plate close to the power output shaft 150. One end of the oil guide plate 121 extends into the space between the output shaft matching part 13 and the gear mounting part 11 of the speed measuring gear output shaft 10, lubricating oil which slides down from the supporting end plate flows to the oil guide plate 121 and then further flows into the oil through groove 15, and flows into the output shaft inner hole of the power output shaft 150 through the oil through groove 15, so that the spline 153 located in the output shaft inner hole is lubricated under the action of centrifugal force.
In order to further realize the circulation of the lubricating oil in the gear box body 100, the supporting end plate is provided with an oil return passage 122, two ends of the oil return passage 122 are respectively communicated with the speed measuring gear cavity and the box body 110, and when the lubricating oil in the speed measuring gear cavity is accumulated excessively, the lubricating oil can flow back to the box body 110 from the oil return passage 122.
Referring to fig. 3 and 4, the tank body 110 is provided with a first oil inlet passage 111, the first connection portion is provided with a second oil inlet passage 112, and the first oil inlet passage 111 and the second oil inlet passage 112 are communicated. Because the lubricating oil can be thrown out in the process of rotating the output gear 160, the splashed lubricating oil can be collected through the oil accumulation pool arranged on the box body 110, and the lubricating oil in the oil accumulation pool can flow into the first oil inlet channel 111 and enter the second oil inlet channel 112 under the action of gravity. Part of the lubricating oil entering the second oil inlet channel 112 vertically flows downwards into the oil guide plate 121 arranged on the support end plate, passes through the oil through groove 15 along the oil guide plate 121 and finally flows into the output shaft inner hole of the power output shaft 150; part of the lubricating oil flows downwards along the supporting end plate wall to the tapered roller bearing to lubricate the tapered roller bearing and finally flows back into the box body 110; part of the lubricant will flow into the speed measuring gear cavity along the support hole on the support end plate and flow back into the case body 110 through the oil return passage 122.
Compared with the prior art, the speed measuring gear output shaft 10 and the speed measuring gear 20 of the speed measuring device of the gearbox disclosed by the embodiment of the invention are hermetically arranged in the gearbox body 100, and the sealing and oil return structure of the gearbox can ensure that lubricating oil can fully lubricate a rotating part and ensure that the lubricating oil is sealed tightly without leakage in the rotating process of the output gear 160, and meanwhile, the full utilization of the lubricating oil can be ensured through the oil return structure.
The terms "first" and "second," and the like in the description and claims of the present invention and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not set forth for a listed step or element but may include other steps or elements not listed.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A gearbox speed measurement device for detecting the rotational speed of a power take-off shaft (150) of a gearbox, said power take-off shaft (150) being provided with an output gear (160), comprising:
the speed measuring gear output shaft (10) is used for being in transmission connection with one end of the power output shaft (150) along the extension direction of the power output shaft (150);
the speed measuring gear (20) is in transmission connection with the speed measuring gear output shaft (10), and the number of teeth of the speed measuring gear (20) is greater than that of the output gear (160);
and the rotating speed sensor (30) is used for measuring the rotating speed of the speed measuring gear (20).
2. Gearbox tacho measuring device according to claim 1, in which the tacho gear output shaft (10) comprises:
the speed measuring device comprises a gear mounting part (11), wherein a first end of the gear mounting part (11) is a connecting end plate (12), and a speed measuring gear (20) is fixedly sleeved at a second end of the gear mounting part (11);
the first end of the output shaft matching part (13) is connected to the connecting end plate (12), the second end of the output shaft matching part extends towards the speed measuring gear (20) and is in nested fit with the end hole of the power output shaft (150), and a gap is formed between the output shaft matching part (13) and the gear mounting part (11);
and the output shaft connecting part (14) is connected to the second end of the output shaft matching part (13) and is used for being connected with the end face of the power output shaft (150).
3. A gearbox speed measurement device according to claim 2, wherein the output shaft connection part (14), the output shaft engagement part (13) and the gear mounting part (11) are of an integral structure, and the output shaft connection part (14) is mounted on the end face of the power output shaft (150) by fasteners.
4. A gearbox, comprising:
the gearbox comprises a gear box body (100), wherein a power output shaft (150) is rotatably arranged in the gear box body (100);
the gearbox speed measuring device is as claimed in any one of claims 1 to 3, the speed measuring gear output shaft (10) is connected to one end of the power output shaft (150) in a transmission manner along the extending direction of the power output shaft (150), and the rotating speed sensor (30) is arranged on the gearbox body (100).
5. Gearbox according to claim 4, in which the speed sensor (30) is a Hall sensor and is two arranged in the gearbox housing (100).
6. Gearbox according to claim 4, in which the gearbox housing (100) comprises:
the power output shaft (150) is rotatably arranged in the box body (110);
the output shaft outer end cover (120) is arranged on one side of the box body (110), and the speed measuring gear output shaft (10) penetrates through the output shaft outer end cover (120);
the speed measuring device comprises a speed measuring connecting cover (130), wherein the speed measuring connecting cover (130) is arranged on one side, away from the box body (110), of the outer end cover (120) of the output shaft, a speed measuring gear cavity is formed between the speed measuring connecting cover (130) and the outer end cover (120) of the output shaft, a speed measuring gear (20) is arranged in the speed measuring gear cavity, and a rotating speed sensor (30) is arranged on the wall of the speed measuring gear cavity.
7. The gearbox as set forth in claim 6, characterized in that the output shaft outer end cover (120) includes:
the supporting end plate is provided with a supporting hole for the speed measuring gear output shaft (10) to pass through;
first connecting portion and second connecting portion all set up in the outside of supporting the end plate, and respectively to the both sides of supporting the end plate extend, the one end embedding of first connecting portion the tip of box body (110) is downthehole, just the outside of first connecting portion be provided with the mounting plate that the terminal surface of box body (110) is connected, the second connecting portion with it connects to test the speed connection lid (130), just support end plate, second connecting portion with it forms to test the speed between the connection lid (130) the gear chamber tests the speed.
8. Gearbox according to claim 7, characterised in that the tachometer gear output shaft (10) is sealed from the support bore by a labyrinth seal.
9. Gearbox according to claim 7, characterised in that the tachometer gear output shaft (10) is provided with an oil through groove (15) and that the side of the support end plate adjacent to the power output shaft (150) is provided with an oil guiding plate (121) for guiding oil into the oil through groove (15).
10. The gearbox according to claim 7, characterized in that the support end plate is provided with an oil return channel (122), and two ends of the oil return channel (122) are respectively communicated with the speed measuring gear cavity and the box body (110);
the oil inlet box is characterized in that the box body (110) is provided with a first oil inlet channel (111), the first connecting portion is provided with a second oil inlet channel (112), and the first oil inlet channel (111) is communicated with the second oil inlet channel (112).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211497457.9A CN115718202A (en) | 2022-11-25 | 2022-11-25 | Gear box speed measuring device and gear box |
| PCT/CN2022/135411 WO2024108629A1 (en) | 2022-11-25 | 2022-11-30 | Gearbox speed measuring device and gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211497457.9A CN115718202A (en) | 2022-11-25 | 2022-11-25 | Gear box speed measuring device and gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115718202A true CN115718202A (en) | 2023-02-28 |
Family
ID=85256657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211497457.9A Pending CN115718202A (en) | 2022-11-25 | 2022-11-25 | Gear box speed measuring device and gear box |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115718202A (en) |
| WO (1) | WO2024108629A1 (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2926665Y (en) * | 2006-07-31 | 2007-07-25 | 中国南车集团株洲电力机车研究所 | Single-stage gear reducer for automobile |
| CN200958552Y (en) * | 2006-07-31 | 2007-10-10 | 中国南车集团株洲电力机车研究所 | Single-stage gear speed reducer with inputting-outputting rotation-speed inspector |
| CN203272737U (en) * | 2013-04-12 | 2013-11-06 | 南京高速齿轮制造有限公司 | Gearbox for rail transit vehicle |
| CN205608017U (en) * | 2016-05-03 | 2016-09-28 | 徐州徐工筑路机械有限公司 | Simple and easy speed of a motor vehicle detecting system |
| CN111929462A (en) * | 2020-08-21 | 2020-11-13 | 南京高精齿轮集团有限公司 | Gear box speed measuring device and gear box |
| CN113551026A (en) * | 2021-07-14 | 2021-10-26 | 中车青岛四方机车车辆股份有限公司 | Gear box, bogie and rail vehicle |
| JP2022087938A (en) * | 2020-12-02 | 2022-06-14 | 東洋電機製造株式会社 | Gear unit for railway vehicle |
| CN217603313U (en) * | 2022-07-21 | 2022-10-18 | 重庆凯瑞传动技术有限公司 | Straddle type monorail speed measurement gearbox |
| CN217653198U (en) * | 2022-06-16 | 2022-10-25 | 龙工(福建)桥箱有限公司 | Output shaft assembly of engineering machinery gearbox |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205220846U (en) * | 2015-12-24 | 2016-05-11 | 山东鲁班机械科技有限公司 | Automatic data signal sensing device of control crawler machinery |
-
2022
- 2022-11-25 CN CN202211497457.9A patent/CN115718202A/en active Pending
- 2022-11-30 WO PCT/CN2022/135411 patent/WO2024108629A1/en unknown
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2926665Y (en) * | 2006-07-31 | 2007-07-25 | 中国南车集团株洲电力机车研究所 | Single-stage gear reducer for automobile |
| CN200958552Y (en) * | 2006-07-31 | 2007-10-10 | 中国南车集团株洲电力机车研究所 | Single-stage gear speed reducer with inputting-outputting rotation-speed inspector |
| CN203272737U (en) * | 2013-04-12 | 2013-11-06 | 南京高速齿轮制造有限公司 | Gearbox for rail transit vehicle |
| CN205608017U (en) * | 2016-05-03 | 2016-09-28 | 徐州徐工筑路机械有限公司 | Simple and easy speed of a motor vehicle detecting system |
| CN111929462A (en) * | 2020-08-21 | 2020-11-13 | 南京高精齿轮集团有限公司 | Gear box speed measuring device and gear box |
| JP2022087938A (en) * | 2020-12-02 | 2022-06-14 | 東洋電機製造株式会社 | Gear unit for railway vehicle |
| CN113551026A (en) * | 2021-07-14 | 2021-10-26 | 中车青岛四方机车车辆股份有限公司 | Gear box, bogie and rail vehicle |
| CN217653198U (en) * | 2022-06-16 | 2022-10-25 | 龙工(福建)桥箱有限公司 | Output shaft assembly of engineering machinery gearbox |
| CN217603313U (en) * | 2022-07-21 | 2022-10-18 | 重庆凯瑞传动技术有限公司 | Straddle type monorail speed measurement gearbox |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024108629A1 (en) | 2024-05-30 |
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