CN220890196U - Locking device of hob for dual-mode shield tunneling machine - Google Patents
Locking device of hob for dual-mode shield tunneling machine Download PDFInfo
- Publication number
- CN220890196U CN220890196U CN202322710081.1U CN202322710081U CN220890196U CN 220890196 U CN220890196 U CN 220890196U CN 202322710081 U CN202322710081 U CN 202322710081U CN 220890196 U CN220890196 U CN 220890196U
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- tensioning
- nut
- bolt
- hob
- sleeve
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- 230000005641 tunneling Effects 0.000 title description 5
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Clamps And Clips (AREA)
Abstract
The utility model discloses a locking device of a hob for a dual-mode shield machine, and belongs to the technical field of shield machines; the tensioning assembly comprises a wedge block for axially propping against a cutter shaft, a tensioning block for propping against the cutter shaft and a tensioning bolt, wherein one end of the tensioning bolt is connected with the wedge block, and the other end of the tensioning bolt penetrates through the tensioning block and is connected with a nut; the locking assembly comprises a tightening bolt, a clamping sleeve and a limiting sleeve which are sequentially nested from outside to inside, and the limiting sleeve is sleeved on the nut so as to prevent the nut from rotating; the clamping sleeve is clamped on the tensioning block at one end opposite to the tensioning block, and the tight top bolt is abutted with the limiting sleeve through the clamping sleeve. The utility model can lock the nut by means of the tensioning block, and prevent the nut from loosening relative to the tensioning bolt.
Description
Technical Field
The utility model relates to the technical field of shield machines, in particular to a locking device of a hob for a dual-mode shield machine.
Background
At present, tunnel construction is a main means for solving traffic congestion and hydraulic engineering. The shield machine is used as tunneling equipment, and the excellent mountain-crossing capability makes the shield machine a first jump to be a different choice of tunneling. The service life of the shield machine is also closely related to the principal force army-cutter on the cutter head.
The utility model discloses a disc cutter anti-loosening device for a dual-mode shield machine, which is disclosed by the utility model with the publication number of CN218150923U, and is provided with a fastening unit, wherein the fastening unit comprises an anti-loosening block and a fastening bolt, the bottom of an axial locking stop block is provided with a connecting part protruding relative to a hob, the fastening bolt penetrates through the connecting part and is connected with the bottom of an end cover, the whole axial locking stop block is fixed on the end cover by the fastening bolt, and the axial locking stop block is prevented from being displaced and shifted in the vibration process, so that an abutting inclined plane is changed, and the axial abutting force of an axial locking wedge block on the hob is influenced. The anti-loose block is respectively connected with the connecting part and the fastening bolt, and can prevent the fastening bolt from loosening, so that the connection strength of the fastening bolt and the end cover is enhanced.
The existing fastening bolt is provided with double nuts and a bolt protection sleeve at one end of the opposite tensioning block, so that the rotation of the nuts can be blocked relatively simply. But the existing anti-loose structure is still easy to loose, and the connection strength of the tension bolt is damaged.
Disclosure of utility model
In view of the above, it is necessary to provide a locking device for a hob for a dual-mode shield machine, which is used for solving the problem that the locking structure arranged at the end part of the existing tension bolt is not stable enough.
The utility model provides a locking device of a hob for a dual-mode shield machine, which comprises a tensioning assembly and a locking assembly, wherein the tensioning assembly is arranged in a cutter box, the tensioning assembly comprises a wedge block for axially propping against a cutter shaft, a tensioning block for propping against the cutter box and a tensioning bolt, one end of the tensioning bolt is connected with the wedge block, and the other end of the tensioning bolt penetrates through the tensioning block to be connected with a nut; the locking assembly comprises a tightening bolt, a clamping sleeve and a limiting sleeve which are sequentially nested from outside to inside, and the limiting sleeve is sleeved on the nut so as to prevent the nut from rotating; the clamping sleeve is clamped on the tensioning block at one end opposite to the tensioning block, and the tight top bolt is abutted with the limiting sleeve through the clamping sleeve.
In some embodiments, the clamping sleeve is provided with a threaded hole, and the tightening bolt is screwed into the threaded hole.
In some embodiments, the stop collar is provided with a plurality of stop blind holes, the stop blind holes surround the stop collar array, the stop blind holes cooperate with the threaded holes, and the end parts of the tight top bolts are abutted with the stop blind holes.
In some embodiments, the tightening bolts are at least two and equally spaced around the clamping sleeve.
In some embodiments, the cross section of the inner cavity of the limit sleeve is hexagonal, the nut is inserted into the limit sleeve and is matched with the inner cavity of the limit sleeve, and the limit sleeve is in transition fit connection with the nut.
In some embodiments, two oppositely arranged protruding blocks are arranged at one end of the clamping sleeve, which is opposite to the tensioning block, the protruding blocks are integrally arranged with the clamping sleeve, and a clamping space for clamping the tensioning block is formed between the protruding blocks.
In some embodiments, the wedge block is provided with a receiving groove, and a nut of the tension bolt is inserted into the receiving groove and is abutted against the wedge block.
In some embodiments, a male and female washer is disposed between the nut of the tension bolt and the wedge.
In some embodiments, a protection plate for sealing the nuts of the tension bolts is arranged at the opening of the accommodating groove.
In some embodiments, an inclined portion is provided on one side of the wedge block, and the inclined portion can abut against an end portion of the cutter shaft.
Compared with the prior art, the utility model has the following beneficial effects:
The locking device of the hob for the dual-mode shield machine is provided with a locking assembly, the locking assembly comprises a tightening bolt, a clamping sleeve and a limiting sleeve, the clamping sleeve and the limiting sleeve are sequentially nested from outside to inside, the limiting sleeve is sleeved on a nut, and the limiting sleeve can lock the nut and prevent the nut from rotating. One end of the clamping sleeve relative to the tensioning block is clamped on the tensioning block, the tight top bolt penetrates through the clamping sleeve to be in butt joint with the limiting sleeve, the tight top bolt is connected with the clamping sleeve and the limiting sleeve, the tensioning block can prevent the clamping sleeve from rotating, and therefore the limiting sleeve is prevented from rotating, locking of nuts is finally achieved, and the nuts of the tensioning bolt are prevented from loosening.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic view of the mechanism of the present utility model;
FIG. 2 is a schematic view of the structure of the clamping sleeve and the limiting sleeve in the utility model;
FIG. 3 is a schematic view of the structure of the locking assembly of the present utility model;
FIG. 4 is a schematic view of the construction of the tensioning assembly of the present utility model;
FIG. 5 is a schematic view of the structure of the utility model integrally connected with the tool magazine and the arbor;
In the drawing, a tightening assembly 100, a wedge block 110, a receiving groove 111, a male and female gasket 112, a protection plate 113, an inclined part 114, a tightening block 120, a tightening bolt 130, a nut 140, a locking assembly 200, a tightening bolt 210, a clamping sleeve 220, a threaded hole 221, a protruding block 222, a limit sleeve 230 and a limit blind hole 231.
Detailed Description
The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.
The embodiment provides a locking device of a hob for a dual-mode shield machine, which relates to the technical field of shield machines, and is characterized in that a nut 140 is locked by means of a tensioning block 120 by arranging a clamping sleeve 220 and a limiting sleeve 230 which are matched with each other, so that the nut 140 is prevented from loosening relative to a tensioning bolt 130.
Referring to fig. 1 to 5, a locking device for a hob for a dual-mode shield tunneling machine in this embodiment includes a tightening assembly 100 and a locking assembly 200 disposed in a tool box, wherein the tightening assembly 100 includes a wedge block 110 for axially abutting against a cutter shaft, a tightening block 120 for abutting against the tool box, and a tightening bolt 130, one end of the tightening bolt 130 is connected with the wedge block 110, and the other end of the tightening bolt 130 passes through the tightening block 120 to be connected with a nut 140.
The locking assembly 200 includes a tightening bolt 210, a clamping sleeve 220 and a limiting sleeve 230, the clamping sleeve 220 and the limiting sleeve 230 are sequentially nested from outside to inside, the limiting sleeve 230 is sleeved on the nut 140, and the limiting sleeve 230 can lock the nut 140 to prevent the nut 140 from rotating. One end of the clamping sleeve 220, which is opposite to the tensioning block 120, is clamped on the tensioning block 120, the tightening bolt 210 passes through the clamping sleeve 220 to be abutted against the limiting sleeve 230, the clamping sleeve 220 and the limiting sleeve 230 are connected with the tightening bolt 210, and the tensioning block 120 can prevent the clamping sleeve 220 from rotating, so that the limiting sleeve 230 is prevented from rotating, locking of the nut 140 is finally realized, and the nut 140 of the tensioning bolt 130 is prevented from being loosened.
Referring to fig. 2, a threaded hole 221 is formed in the clamping sleeve 220, a tightening bolt 210 is screwed into the threaded hole 221, a middle portion of the tightening bolt 210 can be in threaded connection with the clamping sleeve 220, and an end portion of the tightening bolt 210 is abutted against the limiting sleeve 230, so that the clamping sleeve 220 and the limiting sleeve 230 are connected, and relative rotation between the clamping sleeve 220 and the limiting sleeve 230 is prevented.
In the specific implementation process, the clamping sleeve 220 and the limiting sleeve 230 are in transition fit connection, the limiting sleeve 230 can rotate relative to the clamping sleeve 220, and the inner hole of the limiting sleeve 230 can be matched with the nut 140 conveniently.
In some embodiments, please continue to refer to fig. 2, the stop collar 230 is provided with a plurality of stop blind holes 231, the stop blind holes 231 are arranged around the stop collar 230, the stop blind holes 231 are closely arranged, the stop blind holes 231 are matched with the threaded holes 221, the end of the tightening bolt 210 screwed with the threaded holes 221 can be inserted into the stop blind holes 231, the stop collar 230 is locked, and the surface of the stop collar 230 and the end of the tightening bolt 210 are prevented from sliding relatively.
In some embodiments, at least two tightening bolts 210 are disposed at equal intervals around the clamping sleeve 220, and the opposite tightening bolts 210 can apply force to the stop collar 230 from two opposite directions, so as to avoid uneven stress of the stop collar 230 and extrusion deformation of the stop collar 230. Preferably, four screw holes 221 are provided, and four tightening bolts 210 are screwed into the four screw holes 221, respectively.
In some embodiments, referring to fig. 3, the cross section of the inner cavity of the stop collar 230 is hexagonal, the nut 140 is inserted into the stop collar 230 and is matched with the inner cavity of the stop collar 230, the stop collar 230 is in transition fit connection with the nut 140, and the hexagonal inner cavity can prevent the nut 140 from rotating relative to the stop collar 230.
Referring to fig. 2, two oppositely disposed protruding blocks 222 are disposed at one end of the clamping sleeve 220 opposite to the tensioning block 120, the protruding blocks 222 and the clamping sleeve 220 are integrally disposed, in a specific implementation process, the clamping sleeve 220 is specifically sleeve-shaped, a clamping space is radially provided from the clamping sleeve 220, protruding blocks 222 are formed at two sides of the clamping space, the tensioning block 120 can be clamped by the two protruding blocks 222, the tensioning block 120 can prevent the clamping sleeve 220 from rotating, the clamping sleeve 220 is specifically locked by the tensioning block 120, and rotation of the clamping sleeve 220 opposite to the limiting sleeve 230 is prevented.
Referring to fig. 4, the wedge block 110 is provided with a receiving groove 111, a nut of the tightening bolt 130 is received in the receiving groove 111, and the nut of the tightening bolt 130 is inserted into the receiving groove 111 and abuts against the wedge block 110. A protection plate 113 is fixed at the notch of the receiving groove 111 to protect the tension bolt 130.
As a further embodiment, a male and female washer 112 is disposed between the nut of the tension bolt 130 and the wedge 110, and the male and female washer 112 can enhance friction force, prevent the nut from rotating relative to the wedge 110, and avoid abrasion between the nut and the wedge 110.
Referring to fig. 4, an inclined portion 114 is provided at one side of the wedge block 110, and the inclined portion 114 abuts against an end portion of the arbor through a spacer, so that when the tension bolt 130 is pulled, the insertion degree of the wedge block 110 can be controlled, and the abutting force between the inclined portion 114 and the arbor can be adjusted.
The working flow is as follows: after the tension assembly 100 on the tool case is installed, the stop collar 230 is first inserted into the tension bolt 130, and the inner hole of the stop collar 230 is engaged with the nut 140. Then, the locking sleeve 220 is sleeved on the limit sleeve 230, two protruding blocks 222 of the locking sleeve 220 are inserted into the tensioning block 120, the tightening bolt 210 is screwed into the threaded hole 221, and the locking sleeve 220 and the limit sleeve 230 are locked. The tightening block 120 can prevent the clamping sleeve 220 from rotating, thereby preventing the limiting sleeve 230 from rotating, and finally locking the nut 140, and preventing the nut 140 of the tightening bolt 130 from loosening.
While the utility model has been described with respect to the preferred embodiments, the scope of the utility model is not limited thereto, and any changes or substitutions that would be apparent to those skilled in the art are intended to be included within the scope of the utility model.
Claims (10)
1. The locking device of the hob for the dual-mode shield machine is characterized by comprising a tensioning assembly and a locking assembly, wherein the tensioning assembly is arranged in a cutter box, the tensioning assembly comprises a wedge block for axially propping against a cutter shaft, a tensioning block for propping against the cutter box and a tensioning bolt, one end of the tensioning bolt is connected with the wedge block, and the other end of the tensioning bolt penetrates through the tensioning block to be connected with a nut; the locking assembly comprises a tightening bolt, a clamping sleeve and a limiting sleeve which are sequentially nested from outside to inside, and the limiting sleeve is sleeved on the nut so as to prevent the nut from rotating; the clamping sleeve is clamped on the tensioning block at one end opposite to the tensioning block, and the tight top bolt is abutted with the limiting sleeve through the clamping sleeve.
2. The locking device of the hob for the dual-mode shield machine according to claim 1, wherein a threaded hole is formed in the clamping sleeve, and the tightening bolt is screwed into the threaded hole.
3. The locking device of the hob for the dual-mode shield machine according to claim 2, wherein the limiting sleeve is provided with limiting blind holes, a plurality of limiting blind holes are arranged around the limiting sleeve array, the limiting blind holes are matched with the threaded holes, and the end parts of the tightening bolts are abutted against the limiting blind holes.
4. The locking device of the hob for the dual-mode shield machine according to claim 3, wherein at least two tightening bolts are arranged around the clamping sleeve at equal intervals.
5. The locking device of the hob for the dual-mode shield machine according to claim 1, wherein the cross section of an inner cavity of the limiting sleeve is hexagonal, the nut is inserted into the limiting sleeve and is matched with the inner cavity of the limiting sleeve, and the limiting sleeve is in transitional fit connection with the nut.
6. The locking device of the hob for the dual-mode shield machine according to claim 1, wherein two oppositely arranged protruding blocks are arranged at one end of the clamping sleeve opposite to the tightening block, the protruding blocks and the clamping sleeve are integrally arranged, and a clamping space for clamping the tightening block is formed between the two protruding blocks.
7. The locking device of the hob for the dual-mode shield machine according to claim 1, wherein the wedge block is provided with a containing groove, and a nut of the tension bolt is inserted into the containing groove and is abutted against the wedge block.
8. The locking device of the hob for the dual-mode shield machine according to claim 7, wherein a male and a female gasket are arranged between the nut of the tension bolt and the wedge block.
9. The locking device of the hob for the dual-mode shield machine according to claim 8, wherein a protection plate for sealing nuts of the tension bolts is arranged at the opening of the accommodating groove.
10. The locking device for the hob for the dual-mode shield machine according to claim 1, wherein an inclined portion is arranged on one side of the wedge block, and the inclined portion can be abutted with the end portion of the cutter shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322710081.1U CN220890196U (en) | 2023-10-09 | 2023-10-09 | Locking device of hob for dual-mode shield tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322710081.1U CN220890196U (en) | 2023-10-09 | 2023-10-09 | Locking device of hob for dual-mode shield tunneling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220890196U true CN220890196U (en) | 2024-05-03 |
Family
ID=90877201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322710081.1U Active CN220890196U (en) | 2023-10-09 | 2023-10-09 | Locking device of hob for dual-mode shield tunneling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220890196U (en) |
-
2023
- 2023-10-09 CN CN202322710081.1U patent/CN220890196U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |