CN201794938U - Sleeve connecting device for shaft and hub - Google Patents
Sleeve connecting device for shaft and hub Download PDFInfo
- Publication number
- CN201794938U CN201794938U CN2010205325948U CN201020532594U CN201794938U CN 201794938 U CN201794938 U CN 201794938U CN 2010205325948 U CN2010205325948 U CN 2010205325948U CN 201020532594 U CN201020532594 U CN 201020532594U CN 201794938 U CN201794938 U CN 201794938U
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- axle sleeve
- internal
- external
- sleeve
- wheel hub
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Abstract
The utility model relates to a mechanical connection device, in particular to a sleeve connecting device for a shaft and a hub. The sleeve connecting device for the shaft and the hub is characterized in that a cylindrical inner shaft sleeve and a cylindrical outer shaft sleeve with a shaft shoulder at one end are included, wherein the length of the inner shaft sleeve and that of the outer shaft sleeve are the same, the outer diameter of the inner shaft sleeve is smaller than the inner diameter of the outer shaft sleeve, the inner shaft sleeve is coaxially sleeved in the outer shaft sleeve, and two end surfaces of both the inner shaft sleeve and the outer shaft sleeve are fully welded and sealed; a radial oil filling opening and an oil drain port are formed in the shaft shoulder of the outer shaft sleeve respectively, an opening at the upper end of the oil drain port is formed on the outer surface of the shaft shoulder, an opening at the lower end of the oil drain port is formed on the inner surface of the outer shaft sleeve, an opening at the upper end of the oil filling opening is formed on the outer surface of the shaft shoulder, an annular table-board is arranged, an oil filler plug is connected on the inner wall of the oil filling opening through a thread, and the lower end of the oil filling opening is communicated with the oil drain port through a slender hole; and threads are formed on the inner wall of the oil drain port, and a screw plug is in threaded connection with the inner wall of the oil drain port. The sleeve connecting device can conveniently realize the installation and the disassembly of the shaft and the hub.
Description
Technical field
The utility model relates to mechanical linking device, and the muff coupling device of particularly a kind of axle and wheel hub belongs to mechanical manufacturing field.
Background technique
The connection great majority adopt key joints between mechanical transmission axis and the wheel hub, adopt interference fit to connect between the two when particularly carrying torque greatly.After this cooperation connects use a period of time,, need to change because load impacting and fatigue effect cause parts damages such as being coupled part (as gear, sprocket wheel and band tooth axle sleeve etc.) and key.And these parts adopt hot charging when often installing, and need adopt operations such as gas cutting during dismounting, have destructiveness, and the axle and the wheel hub that cause these interference fit to connect are difficult to dismounting.
Summary of the invention
The purpose of this utility model provides the muff coupling device of a kind of axle and wheel hub, can realize easily spool and the installation and removal of wheel hub.
The technical solution of the utility model is an a kind of axle of design and the muff coupling device of wheel hub, it is characterized in that: it comprises that a drum internal axle sleeve and one one end have the drum external axle sleeve of the shaft shoulder, internal axle sleeve is identical with external axle sleeve length, the external diameter of internal axle sleeve is less than the internal diameter of external axle sleeve, internal axle sleeve is sleeved in the external axle sleeve with coaxial manner, two complete sealings of end face of internal axle sleeve and external axle sleeve; Be provided with radially pouring orifice and drain tap in the shaft shoulder of described external axle sleeve, the drain tap upper end open is in shaft shoulder outer surface, lower ending opening is in the external axle sleeve internal surface, the pouring orifice upper end open is in shaft shoulder outer surface and a circular table is arranged, inwall is by the oil filler plug that has been threaded, and the lower end is communicated with drain tap by elongated hole; The drain tap inwall is provided with screw thread, and screw plug is threaded in the drain tap inwall.
The outer surface of described internal axle sleeve is provided with the semicircle oil guide slot of helical, and in the position near edge weld, is provided with the semi-circular groove around internal axle sleeve, and the semicircle oil guide slot of helical communicates with semi-circular groove around internal axle sleeve.
Back-up ring and O RunddichtringO are housed on the described screw plug, and the screw plug end is the conical surface.
Described internal axle sleeve and external axle sleeve are that thickness is that the ratio of external diameter and internal diameter separately is less than or equal to 1.1～1.2 steel cover.
Described screw plug is a copper material.
The beneficial effects of the utility model are: adopt the elastic thin-wall steel to manufacture internal axle sleeve and external axle sleeve, by the gap oiling between internal axle sleeve and external axle sleeve with drain the oil, cause internal axle sleeve and external axle sleeve resiliently deformable, swelling or unclamp axle and wheel hub has realized the installation and removal quickly and easily of axle and wheel hub.
Description of drawings
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing, but not as to qualification of the present utility model:
Fig. 1 is embodiment's a mounting structure schematic representation;
Fig. 2 is the A-A sectional drawing of embodiment Fig. 1;
Fig. 3 is embodiment's a screw plug structural representation;
Fig. 4 is embodiment's an internal axle sleeve structural representation.
Among the figure: 1, internal axle sleeve; 2, external axle sleeve; 3, oil pocket; 4, screw plug; 5, back-up ring; 6, O RunddichtringO; 7, pouring orifice; 8, drain tap; 9, weld seam; 10, wheel hub; 11, axle; 12, elongated hole; 13, the conical surface; 14, oil guide slot; 15, semi-circular groove; 16, oil filler plug.
Embodiment
The structure that is not described in detail in an embodiment, its structure is identical with existing known structure.
Embodiment 1
As shown in Figure 1, the muff coupling device of a kind of axle and wheel hub comprises that a drum internal axle sleeve 1 and one one end have the drum external axle sleeve 2 of the shaft shoulder, internal axle sleeve 1 is identical with external axle sleeve 2 length, the external diameter of internal axle sleeve 1 is less than the internal diameter of external axle sleeve 2, internal axle sleeve 1 is sleeved in the external axle sleeve 2 with coaxial manner, two complete sealings of end face of internal axle sleeve 1 and external axle sleeve 2; Be provided with radially pouring orifice 7 and drain tap 8 in the shaft shoulder of described external axle sleeve 2, drain tap 8 upper end open are in shaft shoulder outer surface, lower ending opening is in external axle sleeve 2 internal surfaces, pouring orifice 7 upper end open are in shaft shoulder outer surface and a circular table is arranged, inwall is by the oil filler plug 16 that has been threaded, and the lower end is communicated with drain tap 8 by elongated hole 12; Drain tap 8 inwalls are provided with screw thread, and screw plug 4 is threaded in drain tap 8 inwalls.Described internal axle sleeve 1 and external axle sleeve 2 are that thickness is the steel cover that the ratio of external diameter and internal diameter separately equals 1.15.
Two complete sealings of end face of internal axle sleeve 1 and external axle sleeve 2 form weld seam 9 in the gap of two end faces of axle sleeve 1 and external axle sleeve 2, like this, and formation oil pocket 3 between internal axle sleeve 1 and the external axle sleeve 2.One end of external axle sleeve 2 has the shaft shoulder, radially have pouring orifice 7 and drain tap 8 at the shaft shoulder, the screw plug 4(that has Sealing shield ring 5, an O RunddichtringO 6 is as shown in Figure 3) be threaded with drain tap 8, drain tap 8 lower ending openings communicate with oil pocket 3, and pouring orifice 7 communicates with drain tap 8 through flows through elongated bore 12.Described screw plug 4 is a copper material.
During installation, the utility model is sleeved between axle 11 and the wheel hub 12, unclamp screw plug 4 half-turns in case make its terminal conical surface 13 and external axle sleeve 2 bound fractions from, connect the oil circuit that injects oil pocket.Be threaded with pouring orifice 7 with the high pressure manual oil pump, pressure oil injects oil pocket 3(as shown in Figure 2 by pouring orifice 7 through elongated hole 12), the outer surface of internal axle sleeve 1 is provided with helical semi-circular groove oil guide slot 14(as shown in Figure 4), being convenient to pressure oil is distributed on rapidly in the oil pocket 3, reaching authorized pressure (by bearing capacity and deciding, generally in 80～120MPa scope) after, tighten screw plug 4, rely on its end conical surface 13(as shown in Figure 3) with cooperating of external axle sleeve 2 high pressure oil is sealed in the oil pocket 3.At this moment, the pressure that pressure oil produced in the oil pocket 3 makes internal axle sleeve inwardly produce resiliently deformable and holds tightly with axle 11, and external axle sleeve 2 outwards produces resiliently deformable and wheel hub 10 swellings, is coupled as one transmitted load under frictional force action.After the installation, lay down the high pressure manual oil pump, the oil filler plug 16 of screwing on.When need are dismantled, unclamp screw plug 4, oil pocket pressure discharges, internal axle sleeve 1 and external axle sleeve 2 rely on the elastic return original states, unclamp between axle 11 and the wheel hub 10 to be connected, realize spools 11 and wheel hub 10 between quick-detach soon.About 3 ~ 5 minutes of this process need time.After having changed coupling member, reconnect the high pressure manual oil pump and get final product work to the oil pocket oiling.
As shown in Figure 4, the outer surface of internal axle sleeve 1 is provided with the semicircle oil guide slot 14 of helical, and in the position near edge weld 9, is provided with the semi-circular groove 15 around internal axle sleeve 1, and the semicircle oil guide slot 14 of helical communicates with semi-circular groove 15 around internal axle sleeve 1.Beginning plays guiding oil flow effect during oiling, and can reduce near the weld seam 9 stress concentration phenomenon when internal axle sleeve 1 stress deformation.
Embodiment 2 and embodiment 1 are basic identical, and difference is that described internal axle sleeve 1 and external axle sleeve 2 are that thickness is the steel cover that the ratio of external diameter and internal diameter separately equals 1.1.
Embodiment 3 and embodiment 1 are basic identical, and difference is that described internal axle sleeve 1 and external axle sleeve 2 are that thickness is the steel cover that the ratio of external diameter and internal diameter separately equals 1.2.
Embodiment 4 and embodiment 1 are basic identical, and difference is that described internal axle sleeve 1 and external axle sleeve 2 are that thickness is that the ratio of external diameter and internal diameter separately is less than 1.1 steel cover.
The thickness of the utility model internal axle sleeve 1 and external axle sleeve 2 is not limited only to the numerical value in the foregoing description, and they can also be that external diameter and the ratio of internal diameter are less than or equal to the steel cover of other numerical value in 1.1～1.2 scopes separately.
The utility model is not limited only to the foregoing description, other is so long as manufacture internal axle sleeve 1 and external axle sleeve 2 welds to the elasticity steel that adopts, by oil pocket 3 oilings that between internal axle sleeve 1 and external axle sleeve 2, form with drain the oil, cause internal axle sleeve 1 and external axle sleeve 2 resiliently deformables, swelling or unclamp axle 11 and wheel hub 10 has realized that the axle 11 and this axle of the installation and removal quickly and easily of wheel hub 10 can with the muff coupling device of wheel hub.
The utility model adopts the mode of pressure house, efficiently solves the problem that is difficult to dismantle that is connected between axle and the wheel hub, and does not need to spline on axle, has improved the bearing capacity of link under the square one effectively.
Claims (5)
1. the muff coupling device of axle and wheel hub, it is characterized in that: it comprises that a drum internal axle sleeve (1) and one one end have the drum external axle sleeve (2) of the shaft shoulder, internal axle sleeve (1) is identical with external axle sleeve (2) length, the external diameter of internal axle sleeve (1) is less than the internal diameter of external axle sleeve (2), internal axle sleeve (1) is sleeved in the external axle sleeve (2) with coaxial manner, two complete sealings of end face of internal axle sleeve (1) and external axle sleeve (2); Be provided with radially pouring orifice (7) and drain tap (8) in the shaft shoulder of external axle sleeve (2), drain tap (8) upper end open is in shaft shoulder outer surface, lower ending opening is in external axle sleeve (2) internal surface, pouring orifice (7) upper end open is in shaft shoulder outer surface and a circular table is arranged, inwall is by the oil filler plug that has been threaded (16), and the lower end is communicated with drain tap (8) by elongated hole (12); Drain tap (8) inwall is provided with screw thread, and screw plug (4) is threaded in drain tap (8) inwall.
2. the muff coupling device of a kind of axle according to claim 1 and wheel hub, it is characterized in that: the outer surface of described internal axle sleeve (1) is provided with the semicircle oil guide slot (14) of helical, and in the semi-circular groove (15) that is provided with near the position of edge weld (9) around internal axle sleeve (1), the semicircle oil guide slot of helical (14) communicates with semi-circular groove (15) around internal axle sleeve (1).
3. the muff coupling device of a kind of axle according to claim 1 and wheel hub, it is characterized in that: back-up ring (5) and O RunddichtringO (6) are housed on the described screw plug (4), and screw plug (4) end is the conical surface (13).
4. the muff coupling device of a kind of axle according to claim 1 and wheel hub is characterized in that: described internal axle sleeve (1) and external axle sleeve (2) are that thickness is that the ratio of external diameter and internal diameter separately is less than or equal to 1.1～1.2 steel cover.
5. the muff coupling device of a kind of axle according to claim 1 and wheel hub, it is characterized in that: described screw plug (4) is a copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205325948U CN201794938U (en) | 2010-09-17 | 2010-09-17 | Sleeve connecting device for shaft and hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205325948U CN201794938U (en) | 2010-09-17 | 2010-09-17 | Sleeve connecting device for shaft and hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201794938U true CN201794938U (en) | 2011-04-13 |
Family
ID=43849847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205325948U Expired - Fee Related CN201794938U (en) | 2010-09-17 | 2010-09-17 | Sleeve connecting device for shaft and hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201794938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375472A (en) * | 2013-06-26 | 2013-10-30 | 苏州市吴中区欣鑫开关配件厂 | Screw with excellent sealing performance |
-
2010
- 2010-09-17 CN CN2010205325948U patent/CN201794938U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375472A (en) * | 2013-06-26 | 2013-10-30 | 苏州市吴中区欣鑫开关配件厂 | Screw with excellent sealing performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 710032 Shaanxi city in Xi'an province Xin Jiamiao East Road No. 209 yuan Patentee after: China National Heavy Machinery Research Institute Co., Ltd. Address before: 710032 Shaanxi city in Xi'an province Xin Jiamiao East yuan Road No. 209 Chinese Heavy Machinery Research Institute Co. Ltd. Patentee before: China National Heavy Machinery Research Institute Co., Ltd. |
|
| 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: 20110413 Termination date: 20170917 |