CN221096525U - Innovative structure shield constructs single-edge hobbing cutter - Google Patents
Innovative structure shield constructs single-edge hobbing cutter Download PDFInfo
- Publication number
- CN221096525U CN221096525U CN202323099537.1U CN202323099537U CN221096525U CN 221096525 U CN221096525 U CN 221096525U CN 202323099537 U CN202323099537 U CN 202323099537U CN 221096525 U CN221096525 U CN 221096525U
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- hob
- shaft sleeve
- gland
- large end
- cutter body
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- 210000004907 gland Anatomy 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000007667 floating Methods 0.000 claims abstract description 18
- 230000003068 static effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 239000011435 rock Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a shield single-blade hob with an innovative structure, which comprises a hob body, a small end shaft sleeve, a large end shaft sleeve, a roller bearing, a cylindrical roller plane thrust bearing, a screw gland, a large end sealing gland, a small end sealing gland, a floating oil seal, a hob shaft and the like, wherein a hob ring and a check ring are fixedly arranged outside the hob body. The novel structure shield single-blade hob adopts a roller bearing, a small-end shaft sleeve, a large-end shaft sleeve and a plane thrust bearing structure, compared with the hob with the traditional tapered roller bearing structure, the novel structure shield single-blade hob is more uniform in stress and smoother in operation, adopts a large-diameter roller bearing, can bear larger load, has the diameter of a hob shaft which is more than 30% larger than that of the hob shaft of the traditional tapered roller bearing, has higher single-blade bearing capacity, adopts a floating oil seal for hob sealing, has the advantages of strong pollution resistance, wear resistance and impact resistance, can have good sealing effect under severe conditions such as high temperature and high pressure, and can obviously improve the service life of the hob.
Description
Technical Field
The utility model relates to the technical field of tunnel tunneling, in particular to a shield single-blade hob with an innovative structure.
Background
Along with the continuous development of national economy, the scientific technology is further improved, urban rail transit is also in powerful construction, such as subways, water conservancy and hydropower, highways, railways and the like, the construction of tunnels is carried out by a shield method, the shield method is a construction method of tunneling tunnels in crushed rock layers or soil layers by using special machinery with a shield cover (namely a shield machine), cutters are arranged on cutter heads of the shield machine, mainly the cutters are used for ditching, rolling, crushing and the like on the rock, the soil layers and the like by utilizing the rotation of the cutter heads, the hob is a cutter with simple structure, large rock breaking amount and high rock breaking efficiency in the shield cutter, and is mainly used for crushing middle and hard rocks, and the single-blade disc hob is widely applied to the shield machine by the characteristics of simple structure, high rock breaking efficiency and long service life.
In the present shield construction engineering, various terrains can be encountered, when a simple geological environment is encountered, the stress of the hob is small, but when the complex geological environment is encountered, the hob is not only stressed greatly, but also works in muddy water medium for a long time, the situation that sealing failure is easy to cause the hob to be damaged occurs, and the service life of the hob is shortened, so that the single-edge hob of the shield with the innovative structure is provided to solve the problems.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides the shield single-blade hob with the innovative structure, which has the advantages of long service life and the like, and solves the problem that the hob is easy to damage when working in a complex geological environment.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a shield single-blade hob of innovation structure, includes cutter body, tip axle sleeve, roller bearing, cylindrical roller plane thrust bearing, screw gland, tip gland, floating oil seal and hob axle etc. the outside fixed mounting of cutter body has cutter ring and retaining ring, the fixed mounting of tip axle sleeve and tip axle sleeve in the large end of cutter body has screw gland, tip axle sleeve and tip axle sleeve, screw gland adopts interference fit to install in the cutter body hole, screw gland adopts the screw thread mode to install on the cutter body, and screw gland fixes the tip axle sleeve simultaneously, install roller bearing between tip axle sleeve and the hob axle, be equipped with cylindrical roller plane thrust bearing between tip axle sleeve and the hob axle, the floating oil seal is installed at cutter body both ends, the screw gland is installed to the hob axle.
Further, the small end sealing gland and the large end sealing gland are in sealing connection with the cutter shaft through the static sealing ring.
Further, the large end sealing gland is connected with the cutter body in a bolt connection mode.
Further, the small end sealing gland is connected with the cutter body in a threaded mode.
Further, the floating oil seal is DF type or DO type floating single seal.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
The novel structure shield single-blade hob adopts a roller bearing, a small-end shaft sleeve, a large-end shaft sleeve and a plane thrust bearing structure, compared with the hob with the traditional tapered roller bearing structure, the novel structure shield single-blade hob is more uniform in stress and smoother in operation, adopts a large-diameter roller bearing, can bear larger load, has the diameter of a hob shaft which is more than 30% larger than that of the hob shaft of the traditional tapered roller bearing, has higher single-blade bearing capacity, adopts a floating oil seal for hob sealing, has the advantages of strong pollution resistance, wear resistance and impact resistance, can have good sealing effect under severe conditions such as high temperature and high pressure, and can obviously improve the service life of the hob.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic diagram of a conventional shield hob.
In the figure: the device comprises a cutter ring 1, a retainer ring 2, a cutter body 3, a floating oil seal 4, a small end sealing gland 5, a roller bearing 6, a small end shaft sleeve 7, a cylindrical roller plane thrust bearing 8, a large end shaft sleeve 9, a static sealing ring 10, a cutter shaft 11, a large end sealing gland 12 and a screw gland 13.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, a shield single-blade hob with an innovative structure in this embodiment includes a hob body 3, a small end shaft sleeve 7, a large end shaft sleeve 9, a roller bearing 6, a cylindrical roller plane thrust bearing 8, a screw gland 13, a large end seal gland 12, a small end seal gland 5, a floating oil seal 4, a hob shaft 11, etc., a hob ring 1 and a retainer ring 2 are fixedly installed outside the hob body 3, a screw gland 13, a small end shaft sleeve 7 and a large end shaft sleeve 9 are fixedly installed at the large end of the hob body 3, the small end shaft sleeve 7 and the large end shaft sleeve 9 are installed in an inner hole of the hob body 1 in an interference fit manner, the screw gland 13 is installed on the hob body in a threaded manner, and meanwhile, the screw gland 13 fixes the large end shaft sleeve 9 to prevent the large end shaft sleeve 9 from moving axially; a roller bearing 6 is arranged between the small end sleeve 7, the large end sleeve 9 and the hob shaft 11 to form a roller bearing pair, so that radial load of the hob during work is born; a cylindrical roller plane thrust bearing 8 is assembled between the small end sleeve 7, the large end sleeve 9 and the hob shaft 11 to bear the axial load of the hob during the work; the floating oil seals 4 are arranged at two ends of the cutter body 3, the large-end sealing gland 12 and the small-end sealing gland 5 are arranged on the cutter shaft 11, the functional rings of the floating sealing rings are fixed, and a certain compression amount is provided for the functional rings, so that the functional rings provide a certain tension to ensure that the floating sealing rings are always contacted with the sealing surfaces of the large shaft sleeve and the small shaft sleeve to ensure sealing.
In this embodiment, the small end seal gland 5 and the large end seal gland 12 are both in sealing connection with the hob shaft 11 through the static seal ring 10.
In this embodiment, the large end sealing gland 12 is connected to the cutter body 3 by bolts.
In this embodiment, the small end sealing gland 5 is connected with the cutter body 3 in a threaded manner.
In this embodiment, the floating oil seal 4 is a DF-type or DO-type floating single seal.
The beneficial effects of the embodiment are as follows:
The novel structure shield single-blade hob adopts the structures of the roller bearing 6, the small end shaft sleeve 7, the large end shaft sleeve 9 and the cylindrical roller plane thrust bearing 8, compared with the hob with the traditional tapered roller bearing structure, the novel structure shield single-blade hob has the advantages of being more even in stress, smoother in operation, capable of bearing larger load, higher in single-blade bearing capacity, higher in hob shaft 11 diameter compared with the diameter of the hob with the traditional tapered roller bearing, and capable of obviously improving the service life of the hob under severe conditions such as high temperature and high pressure, and has the advantages of being strong in pollution resistance, wear-resistant and impact-resistant.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a shield single-edge hob of innovation structure, includes cutter body (3), tip collar (7), big tip collar (9), roller bearing (6), cylindrical roller plane thrust bearing (8), screw gland (13), big tip gland (12), tip gland (5), floating oil blanket (4) and hob axle (11) etc. the outside fixed mounting of cutter body (3) has cutter ring (1) and retaining ring (2), its characterized in that: the novel cutter is characterized in that a screw gland (13), a small end shaft sleeve (7) and a large end shaft sleeve (9) are fixedly arranged at the large end of the cutter body (3), the small end shaft sleeve (7) and the large end shaft sleeve (9) are installed in an inner hole of the cutter body (3) in an interference fit mode, the screw gland (13) is installed on the cutter body in a screw mode, meanwhile, the screw gland (13) is used for fixing the large end shaft sleeve (9), a roller bearing (6) is installed between the small end shaft sleeve (7) and the large end shaft sleeve (9) and the roller shaft (11), a cylindrical roller plane thrust bearing (8) is assembled between the small end shaft sleeve (7) and the large end shaft sleeve (9) and the roller shaft (11), a floating oil seal (4) is installed at two ends of the cutter body (3), and the roller shaft (11) is provided with a large end sealing gland (12) and a small end sealing gland (5).
2. The innovative structure shield single-blade hob according to claim 1, characterized in that: the small end sealing gland (5) and the large end sealing gland (12) are in sealing connection with the hob shaft (11) through the static sealing ring (10).
3. The innovative structure shield single-blade hob according to claim 1, characterized in that: the large end sealing gland (12) is connected with the cutter body (3) in a bolt connection mode.
4. The innovative structure shield single-blade hob according to claim 1, characterized in that: the small end sealing gland (5) is connected with the cutter body (3) in a threaded mode.
5. The innovative structure shield single-blade hob according to claim 1, characterized in that: the floating oil seal (4) is DF type or DO type floating single seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323099537.1U CN221096525U (en) | 2023-11-16 | 2023-11-16 | Innovative structure shield constructs single-edge hobbing cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323099537.1U CN221096525U (en) | 2023-11-16 | 2023-11-16 | Innovative structure shield constructs single-edge hobbing cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221096525U true CN221096525U (en) | 2024-06-07 |
Family
ID=91306086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323099537.1U Active CN221096525U (en) | 2023-11-16 | 2023-11-16 | Innovative structure shield constructs single-edge hobbing cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221096525U (en) |
-
2023
- 2023-11-16 CN CN202323099537.1U patent/CN221096525U/en active Active
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