CN207569167U - The helical teeth wheel construction that a kind of engine liquid pressure power transmits - Google Patents
The helical teeth wheel construction that a kind of engine liquid pressure power transmits Download PDFInfo
- Publication number
- CN207569167U CN207569167U CN201721695957.8U CN201721695957U CN207569167U CN 207569167 U CN207569167 U CN 207569167U CN 201721695957 U CN201721695957 U CN 201721695957U CN 207569167 U CN207569167 U CN 207569167U
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- Prior art keywords
- axis
- bearing
- helical teeth
- teeth wheel
- ring
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- Gears, Cams (AREA)
Abstract
The utility model discloses the helical teeth wheel constructions that a kind of engine liquid pressure power transmits, including axis and the helical gear being set on the axis and the technique oil duct on the axis, a pair of bearing being arranged in juxtaposition is equipped between the axis and the helical gear, the spacer ring being connected with its end face is equipped between the inner ring of described two bearings, multiple grooves to circulate for lubricating oil are radially provided on the end face of the spacer ring side, the technique oil duct and groove are connected lubricating oil is guided to the radial direction oil between described two bearings being internally provided with the corresponding axis in spacer ring position.The utility model is designed reasonably, intensity are big, can effectively solve the failure that existing sliding bearing helical teeth wheel construction is unable to passing power due to helical teeth tilting moment causes bushing to seize, and reduce the starting reactance of engine, improve working efficiency and applicability.
Description
Technical field
The utility model is related to gear transmission technology field, more specifically, it relates to which a kind of engine liquid pressure power passes
The helical teeth wheel construction passed.
Background technology
The engine for being generally used for tractor all has the function of hydraulic power, for turning to and lifting agricultural machinery and implement, engine
On hydraulic power output interface be typically integrated on engine gear case.It is high as Tendency of Agricultural Machinery in China is turned into the propulsion of industry
The large farm machinery of operating efficiency has been promoted the use of, but large farm machinery is higher to hydraulic power needs, which has exceeded mesh
The preceding ability of helical teeth bushing bearing structure generally used.
Existing engine helical teeth bushing pressure-bearing drive mechanism is as shown in Figure 1, slide bushing 2 is fitted in by interference fit
In 1 endoporus of helical gear, bushing 2 and helical gear 1 form integrated rear enclosure on axis 3, and one end of axis 3 is equipped with step, for oblique
1 axially position of gear sets oil duct in axis 3, and oil duct fabrication hole plug screw 4 seals, and pressing plate 5 is contacted with 3 end face of axis, and pressing plate 5 is to set
Helical gear 1 on axis 3 carries out axial limiting, and the gear transmission structure that set installs is fixed on gear chamber or cylinder by bolt 6
On body.
There are the following problems for existing gear transmission structure：
1st, existing hydraulic power transmits helical teeth structure substantial radial load, can not bear the generation of helical teeth tangential force
Bushing easily occurs under tilting moment effect and seizes so that being unable to the failure of removal of passing power for tilting moment；
2nd, existing hydraulic power transmits helical teeth wheel construction to oil duct presser sensor in axis 3, and hypotony then easily serves as a contrast
Set is seized so that being unable to the failure of removal of passing power；
3rd, existing hydraulic power transmission helical teeth wheel construction is sensitive to engine motor oil cleannes, impurities in machine oil,
Particularly metal powder easily damages sleeve surface, and then leads to the failures such as tile kilning.
Utility model content
The technical problems to be solved in the utility model is the above-mentioned deficiency for the prior art, provide a kind of reasonable design,
The helical teeth wheel construction that the big engine liquid pressure power of intensity transmits.
The technical solution of the utility model is such：The helical teeth wheel construction that a kind of engine liquid pressure power transmits, including
Axis and the helical gear that is set on the axis and the technique oil duct on the axis, the axis and the helical gear it
Between be equipped with a pair of bearing being arranged in juxtaposition, be equipped with the spacer ring being connected with its end face between the inner ring of described two bearings, it is described every
Multiple grooves to circulate for lubricating oil are radially provided on the end face of ring side, with the corresponding axis in spacer ring position inside set
Have and connect for lubricating oil to be guided to the radial direction oil between described two bearings by the technique oil duct and groove.
As a further improvement, the centre bore of the spacer ring is a stepped hole, the spacer ring is socketed in institute with gap
On the axis stated.
Further, the groove is located on the spacer ring end face of the larger one end of the stepped hole, the radial direction
Oil duct is connected by the stepped hole with the groove.
Further, the spacer ring is in close contact with the inner ring end face of described two bearings and is connected.
Further, the baffle ring that is connected with its end face is equipped between the outer ring of described two bearings, in the helical gear
Equipped with the annular groove for installing the baffle ring.
Further, the side of the axis is equipped with the convex shoulder that positions the bearing, opposite side be equipped with in the bearing
The pressing plate being in contact is enclosed, gap is equipped between the pressing plate and the axis.
Further, between the inner ring of the bearing and the axis for interference fit, the outer ring of the bearing with it is described
Helical gear between for interference fit.
Advantageous effect
The utility model compared with prior art, have the advantage that for：
The 1st, the bearing being arranged in juxtaposition is set, effectively solve existing sliding bearing helical teeth wheel construction because helical teeth tilting moment is led
Bushing is caused to seize and be unable to the failure of passing power, reducing steering failure and agricultural machinery and implement caused by power transmits failure cannot lift
The probability risen, improves work efficiency；
2nd, the helical teeth drive mechanism of the utility model reduces the requirement to engine oil pressure and Engine Oil Cleanliness, improves applicable
Property；
3rd, bearing substitutes sliding friction by rolling friction, reduces power consumption penalty, and hair can be effectively reduced under worst cold case
The starting reactance of motivation；
4th, groove has nozzle act, carries out forced cooling and lubricating to bearing, improves bearing life；
5th, the outer ring of the inner ring of bearing and axis and bearing and helical gear be in interference state, increase bearing preload lotus,
Improve bearing life；
6th, intensity is big, can meet the high-power power output of engine hydraulic pump helical teeth drive mechanism.
Description of the drawings
Fig. 1 is current engine helical teeth bushing pressure-bearing drive mechanism complete section schematic diagram；
Fig. 2 is the front view structure complete section schematic diagram of the utility model；
Fig. 3 is the front view structure complete section schematic diagram of spacer ring in the utility model；
Fig. 4 is the left view structural representation of spacer ring in the utility model.
Wherein：1- helical gears, 2- bushings, 3- axis, 4- plug screws, 5- pressing plates, 6- bolts, 7- bearings, 8- spacer rings, 81- ladders
Hole, 82- grooves, 9- baffle rings, 10- annular grooves, 11- radial direction oils, 12- technique oil ducts.
Specific embodiment
Specific embodiment in below in conjunction with the accompanying drawings is described further the utility model.
Refering to Fig. 1-4, a kind of helical teeth wheel construction of engine liquid pressure power transmission including axis 3 and is set on the axis 3
Helical gear 1 and the technique oil duct 12 on axis 3, technique oil duct 12 are disposed axially in inside axis 3, by the both sides of helical gear 1
Connection, technique oil duct junction plug screw 4 seal, and a pair of bearing 7 being arranged in juxtaposition is equipped between axis 3 and helical gear 1, and bearing 7 is rolling
Dynamic bearing can be angular contact bearing or taper roll bearing, and the direction that two bearings 7 are installed is on the contrary, existing cunning can be solved effectively
Dynamic bearing helical teeth wheel construction is unable to the failure of passing power due to helical teeth tilting moment causes bushing to seize, and reduces because power transmits
The probability that failure and agricultural machinery and implement cannot lift is turned to caused by failure, improves work efficiency, is set between the inner ring of two bearings 7
There is the spacer ring 8 being connected with its end face, two bearings 7 are opened by spacer ring 8, and two bearings 7 are in close proximity, by the tilting moment of helical teeth
It is smaller, multiple grooves 82 to circulate for lubricating oil are radially provided on the end face of 8 side of spacer ring, corresponding with 8 position of spacer ring
Axis 3, which is internally provided with, connects technique oil duct 12 and groove 82 lubricating oil to be guided to the radial direction oil 11 between two bearings 7,
Lubricating oil flows to radial direction oil 11 from technique oil duct 12, and two bearings 7, the structure drop of the utility model are flowed to using groove 82
The low requirement to engine oil pressure and Engine Oil Cleanliness, improves applicability, and bearing 7 substitutes sliding friction by rolling friction, drop
Low power consumption penalty can effectively reduce the starting reactance of engine under worst cold case.
The centre bore of spacer ring 8 is a stepped hole 81, and spacer ring 8 is socketed in gap on axis 3, and groove 82 is located at close to stepped hole
On 8 end face of spacer ring of 81 larger one end, radial direction oil 11 is connected by stepped hole 81 with groove 82, spacer ring 8 and two bearings 7
Inner ring end face, which is in close contact, to be connected, and the inner ring of 81 and two side bearing 7 of stepped hole of spacer ring 8 forms the oil to lubricating oil axial seal
Space between chamber, i.e. stepped hole 81 and axis 3 is oil pocket, and oil pocket increases oil capacity, and lubricating oil flows through radial direction oil 11 in oil
Chamber is assembled, and groove 82 has nozzle act, and the lubricating oil of injection carries out forced cooling and lubricating to bearing 7, improves 7 service life of bearing；
The baffle ring 9 being connected with its end face is equipped between the outer ring of two bearings 7, the annular groove 10 of installation baffle ring 9 is equipped in helical gear 1,
Annular groove 10 is located on the wall of 1 centre bore of helical gear, and baffle ring 9 and 8 collective effect of spacer ring are conducive to 7 Internal and external cycle stress of bearing and put down
Weighing apparatus, improves stability and the service life of bearing 7, and baffle ring 9 has radial elastic dilation amount, the annular being built in 1 centre bore of gear
After in slot 10, axially there is certain shifting amount, be convenient to the assembling of two bearings 7.
The side of axis 3 is equipped with the convex shoulder for positioning bearing 7, and opposite side is equipped with the pressing plate 5 being in contact with 7 inner ring of bearing, spiral shell
Bolt 6 passes through pressing plate 5 and axis 3 to be connect with gear chamber by screw thread pair and helical teeth wheel construction is fixed in gear chamber, pressing plate 5 and axis 3
Between be equipped with gap, the size in gap is 0.1~0.2mm, using the axial force of bolt 6 by the inner ring and spacer ring 8 of two bearings 7
Axial restraint simultaneously makes oil pocket axial seal, also, the inner ring of bearing 7 and the contact area of axis 3 are more as possible, to improve bearing 7
Bearing capacity.
It is interference fit between the inner ring of bearing 7 and axis 3, is interference fit, axis between the outer ring of bearing 7 and helical gear 1
The interference volume for holding 7 outer ring and helical gear 1 is 0.05~0.1mm, the inner ring of bearing 7 and the interference volume of axis 3 for 0.03~
0.08mm makes bearing 7 ensure the inner ring of normal use clearance condition lower bearing 7 and the outer ring of axis 3 and bearing 7 and helical gear 1
Interference state is in, increases bearing 7 and preloads, improve 7 service life of bearing, the web thickness of helical gear 1 is more than the tooth of helical gear 1
Width, entire helical gear structural strength is big, can meet the high-power power output of engine hydraulic pump helical teeth drive mechanism.
Above-described is only the preferred embodiment of the utility model, it should be pointed out that those skilled in the art is come
It says, under the premise of the utility model structure is not departed from, several modifications and improvements can also be made, these all do not interfere with this reality
With the effect and practical applicability of novel implementation.
Claims (7)
1. a kind of helical teeth wheel construction that engine liquid pressure power transmits, including axis (3) and the helical gear being set on the axis (3)
(1) and the technique oil duct (12) on the axis (3), which is characterized in that the axis (3) and the helical gear
(1) a pair of bearing (7) being arranged in juxtaposition is equipped between, is equipped with what is be connected with its end face between the inner ring of described two bearings (7)
Spacer ring (8) is radially provided with multiple grooves (82) to circulate for lubricating oil on the end face of spacer ring (8) side, with it is described every
The corresponding axis in ring (8) position (3), which is internally provided with the technique oil duct (12), to be connected with groove (82) with by lubricating oil water conservancy diversion
Radial direction oil (11) between to described two bearings (7).
2. the helical teeth wheel construction that a kind of engine liquid pressure power according to claim 1 transmits, which is characterized in that it is described every
The centre bore of ring (8) is a stepped hole (81), and the spacer ring (8) is socketed in gap on the axis (3).
3. the helical teeth wheel construction that a kind of engine liquid pressure power according to claim 2 transmits, which is characterized in that described
Positioned on spacer ring (8) end face of the stepped hole (81) larger one end, the radial direction oil (11) passes through groove (82)
The stepped hole (81) connects with the groove (82).
4. the helical teeth wheel construction that a kind of engine liquid pressure power according to claim 1 transmits, which is characterized in that described
Spacer ring (8) is in close contact with the inner ring end face of described two bearings (7) to be connected.
5. the helical teeth wheel construction that a kind of engine liquid pressure power according to claim 1 transmits, which is characterized in that described two
The baffle ring (9) being connected with its end face is equipped between the outer ring of a bearing (7), is equipped in the helical gear (1) and the gear is installed
Enclose the annular groove (10) of (9).
6. the helical teeth wheel construction that a kind of engine liquid pressure power according to claim 1 transmits, which is characterized in that the axis
(3) side is equipped with the convex shoulder for positioning the bearing (7), and opposite side is equipped with the pressing plate being in contact with the bearing (7) inner ring
(5), gap is equipped between the pressing plate (5) and the axis (3).
7. the helical teeth wheel construction that a kind of engine liquid pressure power according to claim 1 to 6 any one transmits, feature
Be, be interference fit between the inner ring of the bearing (7) and the axis (3), the outer ring of the bearing (7) with it is described oblique
It is interference fit between gear (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721695957.8U CN207569167U (en) | 2017-12-08 | 2017-12-08 | The helical teeth wheel construction that a kind of engine liquid pressure power transmits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721695957.8U CN207569167U (en) | 2017-12-08 | 2017-12-08 | The helical teeth wheel construction that a kind of engine liquid pressure power transmits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207569167U true CN207569167U (en) | 2018-07-03 |
Family
ID=62687258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721695957.8U Expired - Fee Related CN207569167U (en) | 2017-12-08 | 2017-12-08 | The helical teeth wheel construction that a kind of engine liquid pressure power transmits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207569167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842594A (en) * | 2017-12-08 | 2018-03-27 | 广西玉柴机器股份有限公司 | A kind of helical teeth wheel construction of engine liquid pressure power transmission |
-
2017
- 2017-12-08 CN CN201721695957.8U patent/CN207569167U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842594A (en) * | 2017-12-08 | 2018-03-27 | 广西玉柴机器股份有限公司 | A kind of helical teeth wheel construction of engine liquid pressure power transmission |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180703 Termination date: 20211208 |