CN209761444U - disc cutter force measuring structure - Google Patents
disc cutter force measuring structure Download PDFInfo
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- CN209761444U CN209761444U CN201821626366.XU CN201821626366U CN209761444U CN 209761444 U CN209761444 U CN 209761444U CN 201821626366 U CN201821626366 U CN 201821626366U CN 209761444 U CN209761444 U CN 209761444U
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- cutter
- disc
- disc cutter
- blade
- blade holder
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Abstract
The utility model discloses a disc cutter dynamometry structure, including blade disc, blade holder, disc cutter, load sensor, disc cutter passes through the hobbing cutter arbor installation fixed, and the blade holder passes through blade disc fastening bolt installation to be fixed in the blade disc, blade holder bilateral symmetry open have the recess that can be used to the load sensor installation, two load sensors are fixed in blade holder both sides recess through the installation respectively, are provided with the locking briquetting on load sensor upper portion, set up locking briquetting fastening bolt and pass the locking briquetting fix the load sensor in the recess of blade holder both sides.
Description
Technical Field
the utility model relates to a tunnel tunnelling equipment technical field, concretely relates to disc cutter dynamometry structure.
Background
A full-face Tunnel Boring Machine (TBM) is advanced engineering equipment for tunnel excavation, and a disc cutter is an important tool for excavating rock stratums of the full-face tunnel boring machine. However, when the full face rock tunnel boring machine works, the plurality of hobbing cutters on the cutter head are stressed simultaneously, the stress distribution condition of the plurality of hobbing cutters on the whole cutter head is unclear, the stress condition of a single hobbing cutter is unclear, and the normal use of the hobbing cutter and the load control of the full face tunnel boring machine are severely restricted. The existing full-face tunnel boring machine can only acquire the stress of the whole cutter head and cannot acquire the stress of each hob on the cutter head. Therefore, the stress condition of a single hob needs to be sampled and analyzed to obtain accurate rock breaking parameters of the hob.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a single disc cutter dynamometry structure that is used for rock tunnelling machine simple structure, simple to operate and stable durable.
In order to solve the technical problem, the utility model adopts the following technical scheme:
A force measuring structure of a disc cutter comprises a load sensor, a cutter holder, the disc cutter, a cutter shaft of the disc cutter, a locking pressing block, a fastening bolt, a limiting jackscrew and a cutter head.
The disc cutter is fixedly installed through a hob shaft, the cutter holder is fixedly installed in the cutter head through a cutter head fastening bolt, grooves for installing load sensors are symmetrically formed in two sides of the cutter holder, the two load sensors are respectively fixedly installed in the grooves of the two side plates of the cutter holder, and one stress surface of each load sensor is in contact with the hob holder; the hobbing cutter shaft is in contact with the other surfaces of the two load sensors, a locking pressing block is arranged on the upper portion of each load sensor, a fastening bolt is arranged to penetrate through the locking pressing block to fix the load sensors in the grooves on the two sides of the cutter holder, and the load sensors can be loosened due to vibration in the force measuring process, so that the load sensors can be fastened through the fastening bolts after the force measuring is finished, and meanwhile, the hobbing cutter shaft can also be pressed tightly. And a tool apron fastening bolt penetrates through the operation bottom at the bottom of the tool apron and is used for fastening the lower part of the load sensor. The upper part of the groove of the tool apron is provided with a boss, two ends of the boss are provided with positioning jackscrews, and after the locking pressing block is installed in place, the two ends of the locking pressing block are screwed down to limit the front and back displacement of the locking pressing block, so as to restrict the front and back movement of the hob shaft.
The utility model discloses a disk cutter dynamometry structure's dynamometry method as follows:
The disc cutter rotates and pushes forwards to cut rocks, the rock breaking resistance borne by the disc cutter is transmitted to a cutter shaft of the disc cutter through a cutting edge, then the rock breaking resistance is transmitted to a load sensor through a contact surface between the cutter shaft of the disc cutter and the load sensor, and the sum of readings of the load sensors at two ends of the cutter shaft of the disc cutter is the vertical force for breaking the rocks by the single disc cutter. The hob seat is integrally fixed on the cutter head through a fastening bolt, and provides counter force for the other stress surface of the sensor.
The utility model discloses technological effect:
The utility model discloses technical scheme utilizes the weight reading of hobbing cutter arbor both ends load sensor to measure the vertical force that the rock was broken to single hobbing cutter, simple structure, and the installation is convenient with the dismantlement, and the dynamometry is stable.
Drawings
FIG. 1 is a schematic view of a force measuring structure of a disc cutter of the present invention;
Fig. 2 is a schematic view of a three-dimensional model of the tool holder.
The device comprises a positioning jackscrew 1, a locking pressing block fastening bolt 2, a locking pressing block 3, a disc cutter 4, a hob cutter shaft 5, a load sensor 6, a cutter seat 7, a cutter head fastening bolt 8, a cutter seat fastening bolt 9, a cutter head 10, a groove 11 and a boss 12.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1, the disc cutter (4) is fixedly installed through a cutter shaft (5), the cutter holder (7) is fixedly installed in a cutter head (10) through a cutter head fastening bolt (8), grooves (11) for installing the load sensors (6) are symmetrically formed in two sides of the cutter holder (7), and the two load sensors (6) are respectively fixedly installed in the grooves (11) in the two sides of the cutter holder (7), so that a stress surface of each load sensor (6) is in contact with the cutter holder (7) of the disc cutter; hobbing cutter arbor (5) and the another side contact of two load sensors (6), be provided with locking briquetting (3) on load sensor (6) upper portion, set up locking briquetting fastening bolt (2) and pass locking briquetting (3) fix load sensor (6) in recess (11) of blade holder (7) both sides, because vibration of dynamometry in-process can make load sensor (6) not hard up, consequently can also compress tightly hobbing cutter arbor (5) simultaneously through locking briquetting fastening bolt (2) fastening load sensor (6) after the dynamometry. A tool apron fastening bolt (9) penetrates through the bottom of the tool apron (7) to fasten the lower part of the load sensor (6). The upper part of a groove (11) of the tool apron (7) is provided with a boss (12), two ends of the boss (12) are provided with positioning jackscrews (1), and after the locking pressing block (3) is installed in place, the two end positioning jackscrews (1) are screwed to limit the front and back displacement of the locking pressing block (3) so as to restrict the front and back movement of the hob cutter shaft (5).
The above description is only illustrative of the present invention, and is not intended to limit the scope of the present invention, and any person skilled in the art can make equivalent changes and modifications without departing from the spirit and principles of the present invention, which should fall within the protection scope of the present invention.
Claims (4)
1. The utility model provides a disc cutter dynamometry structure, includes blade disc (10), blade holder (7), disc cutter (4), load cell (6), its characterized in that, disc cutter (4) are fixed through hobbing cutter arbor (5) installation, and blade holder (7) are fixed in blade disc (10) through blade disc fastening bolt (8) installation, blade holder (7) bilateral symmetry open have recess (11) that can be used to load cell (6) installation, two load cell (6) are fixed in blade holder (7) both sides recess (11) through the installation respectively, are provided with locking briquetting (3) on load cell (6) upper portion, set up locking briquetting fastening bolt (2) and pass locking briquetting (3) fix load cell (6) in recess (11) of blade holder (7) both sides.
2. A disc cutter force measuring structure according to claim 1, wherein a base fastening bolt (9) is inserted through the base of the base (7) at the base of the base (7) for fastening the lower portion of the load cell (6).
3. The force measuring structure of a disc cutter as claimed in claim 1, wherein the upper part of the groove (11) of the tool holder (7) is provided with a boss (12), and two ends of the boss (12) are provided with two end positioning jackscrews (1).
4. A disc cutter force measuring structure according to claim 1, wherein a force bearing surface of the load cell (6) is in contact with the hob seat (7); the hob shaft (5) is contacted with the other surfaces of the two load sensors (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821626366.XU CN209761444U (en) | 2018-10-08 | 2018-10-08 | disc cutter force measuring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821626366.XU CN209761444U (en) | 2018-10-08 | 2018-10-08 | disc cutter force measuring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209761444U true CN209761444U (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821626366.XU Active CN209761444U (en) | 2018-10-08 | 2018-10-08 | disc cutter force measuring structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN209761444U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057814A (en) * | 2018-10-08 | 2018-12-21 | 中铁隧道局集团有限公司 | A kind of disk cutter force measuring structure |
| CN114086975A (en) * | 2021-11-22 | 2022-02-25 | 中铁隧道局集团有限公司 | Cutter holder for monitoring multidimensional working state of shield cutter in real time and mounting method thereof |
-
2018
- 2018-10-08 CN CN201821626366.XU patent/CN209761444U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057814A (en) * | 2018-10-08 | 2018-12-21 | 中铁隧道局集团有限公司 | A kind of disk cutter force measuring structure |
| CN114086975A (en) * | 2021-11-22 | 2022-02-25 | 中铁隧道局集团有限公司 | Cutter holder for monitoring multidimensional working state of shield cutter in real time and mounting method thereof |
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