CN203703080U - Transfer case of core drilling machine - Google Patents
Transfer case of core drilling machine Download PDFInfo
- Publication number
- CN203703080U CN203703080U CN201420088317.0U CN201420088317U CN203703080U CN 203703080 U CN203703080 U CN 203703080U CN 201420088317 U CN201420088317 U CN 201420088317U CN 203703080 U CN203703080 U CN 203703080U
- Authority
- CN
- China
- Prior art keywords
- transfer case
- bearing
- input shaft
- mounting hole
- gland
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a transfer case of a core drilling machine. The transfer case of the core drilling machine comprises a transfer case body, an input shaft and a transfer gear group, a front bearing and a rear bearing are mounted on the input shaft, a coupling band is mounted at the input end of the input shaft, a bearing cover is formed with a mounting hole for holding the front bearing, a front bearing positioning boss is mounted at the middle of the mounting hole, an oil retainer arranged on the input shaft is mounted in the mounting hole of the outer side of the front bearing, and a mechanical labyrinth type sealing mechanism is mounted between the outer lateral surface of the oil retainer and the inner lateral surface of a sealing cover. The transfer case of the core drilling machine is simple in structure, reasonable in design and low in manufacturing cost; by means of the oil retainer in the mounting hole of the outer side of the front bearing, the oil pressure is greatly alleviated, and the oil sealing effect and the service life of the sealing ring are improved; the sealing ring is mounted between the sealing cover and the coupling band so that the sealing ring is very easy to demount, the change time is shortened, the maintenance workload and the after-sales service workload are greatly reduced, and the working efficiency of the drilling machine is improved.
Description
Technical field
The utility model relates to a kind of geotechnical boring equipment, particularly a kind of rock-core borer transfer case.
Background technique
Transfer case is the important composition parts of rock-core borer, and these parts are a gear two stage speed change transmission case, and input end input shaft forms a Transmitted chains through universal shaft coupling and speed change box clutch.Output terminal output shaft moves clutch gear ring through shift fork and respectively power is reached to gyrator and winch.
Due to transfer case gear transmission fluid splash lubrication, and the just in time central position of close input shaft of liquid level, fluid can enter between bearing gland and coupling band through bearing gap, this place keeps off oil seal with rotary shaft lip seal, sealing circle all packs in bearing gland with the bearing of supporting input shaft, can find out, this gland is equivalent to bearing box, by positioning spigot and transfer case body opening location, flange by Bolt Connection on casing.When rig work, seal ring (easily damaged parts) hole place epipharynx is tightly embraced coupling band cylindrical, makes not easy to leak of casing inner fluid, and along with the wearing and tearing gradually of seal ring epipharynx, sealability weakens gradually, and the on-the-spot Sealing of changing in time just seems extremely important.If can not change in time after ring wear, oil leakage phenomenon can be more and more serious, and existing seal arrangement is very inconvenient in the time changing Xinmi City's seal, bearing gland, bearing integral need be pulled down separate with input shaft and just can change, otherwise be difficult to change the outfit.Moreover dismounting bearing gland in job site is more difficult, again refill in place just more difficult, so the replacing of seal ring has just become the problem that must solve.
Summary of the invention
The technical problems to be solved in the utility model is for the deficiencies in the prior art, proposes a kind of easy accessibility, can reduce and change Sealing labor intensity, the rock-core borer transfer case of increasing work efficiency.
The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of rock-core borer transfer case, comprise transfer case body, input shaft and be arranged on the driving gear set coordinating with input shaft in transfer case body, before being equipped with on input shaft, rear bearing, described rear bearing is fixed on the rear axis hole place of transfer case body, in fore bearing setting-in bearing gland, bearing gland and transfer case body are fixedly connected, be provided with and be arranged on the coupling band that outside transfer case body, universal shaft coupling joins at input shaft input end, be characterized in: described bearing gland is provided with the mounting hole that fore bearing is installed, be provided with fore bearing positioning boss at mounting hole middle part, in the mounting hole in fore bearing outside, be provided with the flinger ring being contained on input shaft, flinger ring is fixedly mounted between the inner of coupling band and the inner ring of fore bearing, be provided with the sealing gland being sleeved on coupling band in the outside of flinger ring, sealing gland is fixedly connected with bearing gland, between sealing gland and coupling band, seal ring is housed, between the outer rim of flinger ring and the inwall of mounting hole, be set to clearance seal, between flinger ring outer side surface and sealing gland inner side surface, be provided with mechanical labyrinth sealing mechanism.
The technical problems to be solved in the utility model can also be come further to realize by the following technical programs, and described mechanical labyrinth sealing mechanism comprises the annular protrusion being arranged on flinger ring outer side surface and is arranged on the groove that sealing gland inner side surface coordinates with annular protrusion.
The technical problems to be solved in the utility model can also be come further to realize by the following technical programs, and described seal ring is rotary shaft lip seal.
Compared with prior art, the utility model is simple in structure, reasonable in design, low cost of manufacture, utilizes and is arranged on the flinger ring in mounting hole outside fore bearing, has slowed down widely the pressure of fluid, oil sealing effect and the working life of having improved seal ring; Seal ring is arranged between sealing gland and coupling band, makes the dismounting of seal ring become abnormal simple, shortened the time of changing, greatly reduced the workload of maintenance, after sales service, further improved the working efficiency of rig.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
A kind of rock-core borer transfer case, comprise transfer case body 1, input shaft 3 and be arranged on the driving gear set coordinating with input shaft 3 in transfer case body 1, before being equipped with on input shaft, rear bearing 4, 2, described rear bearing 2 is fixed on the rear axis hole place of transfer case body 1, in fore bearing 4 setting-in bearing glands 5, bearing gland 5 is fixedly connected with transfer case body 1, be provided with and be arranged on the coupling band 8 that outside transfer case body, universal shaft coupling 7 joins at input shaft 3 input ends, described bearing gland 5 is provided with the mounting hole that fore bearing 4 is installed, be provided with fore bearing positioning boss at mounting hole middle part, in the mounting hole in fore bearing outside, be provided with the flinger ring 10 being contained on input shaft, flinger ring 10 is fixedly mounted between the inner of coupling band 8 and the inner ring of fore bearing 4, be provided with the sealing gland 6 being sleeved on coupling band in the outside of flinger ring 10, sealing gland 6 is fixedly connected with bearing gland 5, between sealing gland 6 and coupling band 8, seal ring 9 is housed, between the outer rim of flinger ring 10 and the inwall of mounting hole, be set to clearance seal, between flinger ring outer side surface and sealing gland inner side surface, be provided with mechanical labyrinth sealing mechanism.The material of described bearing gland 5 is ZQ270-500 Cast Steel, rough annealing, and thick fine finishing is shaped, and outside fix seam should be coaxial with two inner bore of step, and coaxiality error is not more than φ 0.05mm; Described sealing gland 6 is Q235 steel plate cutting, and point thick fine finishing is shaped, and outside fix seam is coaxial with the endoporus of dress seal ring, and coaxiality error is not more than φ 0.05mm, turns blue; Described flinger ring 10 is Q235 steel plate cutting, shapes, and left and right both ends of the surface are parallel, and error is not more than 0.03mm; Described coupling band 8 is No. 45 steel, modified after roughing, hard chromium plating after the fine finishing of small end cylindrical, increase abrasion resistance, reduce simultaneously and seal ring epipharynx between frictional force, the coaxiality error of inner splined hole and this circle should be not more than φ 0.05mm.Lubricating oil of the present utility model enters flinger ring 10 places through fore bearing slit flow, the fluid that enters flinger ring is blocked, oil liquid pressure slows down, flow out in the gap (0.5mm left and right) of a small amount of fluid through between the large cylindrical of flinger ring and bearing gland hole, through mechanical labyrinth sealing mechanism, finally enter the space forming between coupling band and sealing gland, seal ring with outer interference is embedded in sealing gland endoporus, seal ring epipharynx hugs coupling band excircle, make to enter fluid between coupling band and sealing gland cannot be from the gap between them seepage, thereby reach the effect of sealing fluid.When after ring wear, need change in time, concrete steps are: first pull down universal shaft coupling, then pull down coupling band and sealing gland, can change the outfit.Sealing gland changes the outfit after Xinmi City's seal, again closing on bearing gland, afterwards coupling band is packed into input shaft and connects so far having changed the outfit of Sealing with universal shaft coupling closing.
Described mechanical labyrinth sealing mechanism comprises the annular protrusion being arranged on flinger ring outer side surface and is arranged on the groove that sealing gland inner side surface coordinates with annular protrusion; Described seal ring 9 is rotary shaft lip seal.Seal ring 9 selects Type B running shaft lip-type seal, and applicable oil liquid pressure is less than 0.05MPa.
Claims (3)
1. a rock-core borer transfer case, comprise transfer case body, input shaft and be arranged on the driving gear set coordinating with input shaft in transfer case body, before being equipped with on input shaft, rear bearing, described rear bearing is fixed on the rear axis hole place of transfer case body, in fore bearing setting-in bearing gland, bearing gland and transfer case body are fixedly connected, be provided with and be arranged on the coupling band that outside transfer case body, universal shaft coupling joins at input shaft input end, it is characterized in that: described bearing gland is provided with the mounting hole that fore bearing is installed, be provided with fore bearing positioning boss at mounting hole middle part, in the mounting hole in fore bearing outside, be provided with the flinger ring being contained on input shaft, flinger ring is fixedly mounted between the inner of coupling band and the inner ring of fore bearing, be provided with the sealing gland being sleeved on coupling band in the outside of flinger ring, sealing gland is fixedly connected with bearing gland, between sealing gland and coupling band, seal ring is housed, between the outer rim of flinger ring and the inwall of mounting hole, be set to clearance seal, between flinger ring outer side surface and sealing gland inner side surface, be provided with mechanical labyrinth sealing mechanism.
2. rock-core borer transfer case according to claim 1, is characterized in that: described mechanical labyrinth sealing mechanism comprises the annular protrusion being arranged on flinger ring outer side surface and is arranged on the groove that sealing gland inner side surface coordinates with annular protrusion.
3. rock-core borer transfer case according to claim 1, is characterized in that: described seal ring is rotary shaft lip seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420088317.0U CN203703080U (en) | 2014-02-28 | 2014-02-28 | Transfer case of core drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420088317.0U CN203703080U (en) | 2014-02-28 | 2014-02-28 | Transfer case of core drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703080U true CN203703080U (en) | 2014-07-09 |
Family
ID=51053526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420088317.0U Expired - Fee Related CN203703080U (en) | 2014-02-28 | 2014-02-28 | Transfer case of core drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703080U (en) |
-
2014
- 2014-02-28 CN CN201420088317.0U patent/CN203703080U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160203 Address after: 222000 Jiangsu, Haizhou District, Haizhou Development Zone, the new East Road, No. 1 Patentee after: H.H. DRILL-TECH DRILLING MACHINERY CO., LTD. Address before: 222000 Jiangsu, Haizhou District, Haizhou Development Zone, the new East Road, No. 1 Patentee before: Lianyungang Huanghai Machinery 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: 20140709 Termination date: 20160228 |