Spacer ring type detection hobbing cutter and cutter box
By introducing a partition ring detection system into the hob, the probe is used to sense the rotation of the spacer block to monitor the rotation speed of the hob, the problem of excessive sharpening or damage in the hob in the prior art is solved, and the normal hob is achieved Dig.
Patent Information
- Application Number
- CN202420982407.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The existing shield machine lacks a monitoring mechanism during the excavation process, which leads to inability to predict and respond in time when the hob is worn or damaged, resulting in digging difficulties or problems that cannot be excavated.
A partition ring detection hob is designed, including a stator assembly, a rotor assembly and a monitoring mechanism. The probe induces the rotation of the spacer, outputs electrical signals, and the monitoring mechanism receives and converts the speed of the hob to monitor the hob in real time. In the working conditions, prevent wear or damage in a timely manner.
Real-time monitoring and early warning of the hob is realized, which avoids excavation difficulties caused by excessive wear or damage, and ensures the normal operation of the hob.
Smart Images
Figure CN222162610U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shield machine cutters, in particular to a spacer ring type detection hob and a cutter box. Background Art
[0002] The shield machine is a tunnel boring machine that uses the shield method. The basic working principle of the shield machine is that a cylindrical steel component pushes forward along the axis of the tunnel while excavating the soil. The shield machine consists of a propulsion system, an excavation system, and a laying system. The excavation system includes a cutterhead, a cutter box, a roller cutter, and a power system. The roller cutter is installed in the cutter box, and the cutter box is installed in the cutter slot on the cutterhead. The excavation system uses the rotation of the cutterhead to drive the roller cutter to revolve, and then cooperates with the roller cutter's own rotation to crush the rock surface to complete the excavation.
[0003] During use, the existing shield machine cutters (such as the shield machine cutter disclosed in application number 202020733510.0) may be worn eccentrically or damaged. Since there is no corresponding monitoring mechanism to predict the working condition of the cutter, when the cutter is worn eccentrically or damaged, no response can be made in time, which will make it difficult or impossible for the cutter to dig. Utility Model Content
[0004] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and to propose a spacer ring type detection roller cutter and cutter box to solve the technical problem that in the prior art, the excavation system of the shield machine has no corresponding monitoring mechanism to predict the working condition of the roller cutter during excavation work, and cannot respond in time when the roller cutter is worn eccentrically or damaged, which will cause the roller cutter to have difficulty in excavation or be unable to excavate.
[0005] In order to achieve the above technical purpose, the technical solution of the utility model provides a ring-type detection hob, including:
[0006] a stator assembly including a knife shaft;
[0007] A rotor assembly, comprising a cutter body and at least one spacer, wherein the cutter body is rotatably sleeved on the cutter shaft and forms a closed cavity with the cutter shaft, and each of the spacers is disposed in the cavity and fixedly connected to the cutter body;
[0008] The monitoring mechanism comprises at least one probe, each of which is arranged in the cavity and is detachably fixed to the knife shaft, and is used for sensing each of the spacers passing by and outputting an electrical signal.
[0009] Furthermore, the monitoring mechanism also includes a control board and a control box. The control board is electrically connected to each of the probes for receiving electrical signals and converting the electrical signals into the rotation speed of the blade. The control box is detachably fixed to one end of the blade shaft via screws for accommodating the control board.
[0010] Furthermore, at least one clamping hole is formed on the side wall of the knife shaft, each of the clamping holes extends radially, and each of the probes is clamped in the corresponding clamping hole.
[0011] Furthermore, a mounting groove is provided at one end of the knife shaft, and the control box is placed in the mounting groove.
[0012] Furthermore, a connecting channel is provided on the knife shaft, and the connecting channel extends axially. Both ends of the connecting channel are respectively connected to the mounting groove and the inner ends of each of the card holes, so as to allow the wires electrically connecting the control board and each of the probes to pass through.
[0013] Furthermore, the rotor assembly also includes a spacer ring, which is arranged at the middle position of the cavity and is sleeved on the knife shaft. The outer wall of the spacer ring is fixedly connected to the knife body, and each of the spacer blocks is fixedly connected to the inner wall of the spacer ring. Each of the spacer blocks has a spacing from the side wall of the knife shaft, and each of the probes is aligned with the spacer ring.
[0014] Furthermore, the stator assembly also includes two end covers, which are relatively fixedly sleeved on the knife shaft, and the two ends of the knife body are rotatably sleeved on the corresponding end covers.
[0015] Furthermore, the spacer ring type detection hob also includes two bearings, both of which are arranged in the cavity and are respectively located on both sides of the spacer ring, the inner rings of the two bearings are both sleeved on the cutter shaft and are both interference connected with the cutter shaft, and the outer rings of the two bearings are both interference connected with the cutter body.
[0016] Furthermore, the spacer-ring type detection hob also includes a sealing assembly, and the sealing assembly includes a plurality of sealing rings, each of which is respectively arranged at the connection between the end cover and the cutter body.
[0017] On the other hand, the utility model also provides a knife box, including a box body, the above-mentioned spacer ring type detection hob and a lock, the knife shaft is arranged in the box body, both ends of the knife shaft are clamped with the box body, the lock is fixedly connected to the box body, and is used to fix the output cable of the monitoring mechanism.
[0018] Compared with the prior art, the beneficial effects of the utility model include: when the roller cutter is working, the cutter body rotates relative to the cutter shaft, which will drive the various spacer blocks to rotate. Each spacer block will pass through the probe in turn. The probe can sense each passing spacer block and output an electrical signal. By monitoring the rotation of each spacer block, the working condition of the roller cutter can be predicted. When the roller cutter is worn eccentrically or damaged, a response can be made in time to achieve the purpose of preventing the working condition from becoming difficult and ensure the normal excavation of the roller cutter. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a cross-sectional view of a spacer ring type detection hob provided by the utility model;
[0020] Figure 2 yes Figure 1 A three-dimensional structural diagram of the connection relationship between the cutter body, the spacer block and the spacer ring in a spacer ring type detection hob;
[0021] Figure 3 It is a three-dimensional structural schematic diagram of a ring-type detection hob and a cutter box provided by the utility model;
[0022] Figure 4 yes Figure 3 A schematic diagram of the three-dimensional structure of a ring-type detection hob and a knife box in which two side panels are omitted;
[0023] In the figure: 100 - stator assembly, 110 - knife shaft, 111 - clamping hole, 112 - mounting groove, 113 - connecting channel, 120 - end cover, 121 - oil filling hole, 200 - rotor assembly, 210 - knife body, 220 - spacer block, 230 - spacer ring, 240 - knife ring, 250 - retaining ring, 300 - monitoring mechanism, 310 - probe, 320 - control box, 400 - bearing, 500 - sealing assembly, 510 - sealing ring, 600 - housing, 700 - lock. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0025] The utility model provides a ring-type detection hob, the structure of which is as follows: Figure 1 and Figure 2As shown, it includes a stator assembly 100, a rotor assembly 200 and a monitoring mechanism 300, wherein the stator assembly 100 includes a knife shaft 110; the rotor assembly 200 includes a knife body 210 and at least one spacer block 220, wherein the knife body 210 is rotatably sleeved on the knife shaft 110 and forms a closed cavity with the knife shaft 110, wherein each of the spacer blocks 220 is disposed in the cavity and is fixedly connected to the knife body 210; the monitoring mechanism 300 includes at least one probe 310, wherein each of the probes 310 is disposed in the cavity and is detachably fixedly connected to the knife shaft 110, and is used for sensing each of the spacer blocks 220 passing by and outputting an electrical signal.
[0026] When the roller cutter is working, the cutter body 210 rotates relative to the cutter shaft 110, which will drive the various spacer blocks 220 to rotate. Each of the spacer blocks 220 will pass through the probe 310 in turn. The probe 310 can sense each of the spacer blocks 220 passing by and output an electrical signal. By monitoring the rotation of each of the spacer blocks 220, the working condition of the roller cutter can be predicted. When the roller cutter is worn eccentrically or damaged, a response can be made in time to prevent the working condition from becoming difficult and ensure the normal excavation of the roller cutter.
[0027] As a preferred embodiment, please refer to Figure 1 and Figure 4 The monitoring mechanism 300 also includes a control board and a control box 320. The control board is electrically connected to each of the probes 310 for receiving electrical signals and converting the electrical signals into the rotation speed of the cutter body 210. The control box 320 is detachably fixed to one end of the cutter shaft 110 via screws for accommodating the control board. When the hob is working, the cutter body 210 rotates, which will drive each of the spacer blocks 220 to rotate. Each of the spacer blocks 220 will pass through the probe 310 in turn. The probe 310 can sense each of the spacer blocks 220 passing by and output an electrical signal. The control board can receive the electrical signal and convert the electrical signal into the rotation speed of the cutter body 210. By monitoring the rotation speed of the cutter body 210, it can be determined whether the hob has eccentric wear, is about to have eccentric wear, or has been abnormally damaged, thereby achieving the purpose of preventing working conditions from becoming difficult.
[0028] As a preferred embodiment, please refer to Figure 1 At least one clamping hole 111 is opened on the side wall of the knife shaft 110, and each of the clamping holes 111 extends radially. Each of the probes 310 is respectively clamped in the corresponding clamping hole 111. The probe 310 can be accommodated through the clamping hole 111, and one end of the probe 310 is exposed from the clamping hole 111.
[0029] As a preferred embodiment, please refer to Figure 1A step with an annular structure is provided in the clamping hole 111 to limit the exposed length of the probe 310 .
[0030] As a preferred embodiment, please refer to Figure 1 and Figure 2 Each of the spacers 220 and each of the probes 310 are arranged circumferentially on the side of the knife shaft 110 , which can improve the sensing effect of the probe 310 on the spacer 220 .
[0031] As a preferred embodiment, please refer to Figure 1 One end of the knife shaft 110 is provided with a mounting groove 112 , and the control box 320 is placed in the mounting groove 112 . The control box 320 can be accommodated through the mounting groove 112 .
[0032] As a preferred embodiment, please refer to Figure 1 A connecting channel 113 is also provided on the knife shaft 110. The connecting channel 113 extends axially. Both ends of the connecting channel 113 are respectively connected to the mounting groove 112 and the inner ends of each of the card holes 111, so as to allow the wires electrically connecting the control board and each of the probes 310 to pass through, so as to facilitate the electrical connection between the control board and each of the probes 310 through the wires.
[0033] As a preferred embodiment, please refer to Figure 1 and Figure 2 The rotor assembly 200 also includes a spacer ring 230, which is arranged at the middle position of the cavity and is sleeved on the knife shaft 110. The outer wall of the spacer ring 230 is fixedly connected to the knife body 210, and the cavity can be separated by the spacer ring 230. Each of the spacer blocks 220 is fixedly connected to the inner wall of the spacer ring 230. Each of the spacer blocks 220 has a distance from the side wall of the knife shaft 110. Each of the probes 310 is aligned with the spacer ring 230, which can further improve the sensing effect of the probe 310 on each of the spacer blocks 220.
[0034] As a preferred embodiment, please refer to Figure 1 The rotor assembly 200 further includes a cutter ring 240 , which is arranged around the outer wall of the cutter body 210 , and the rock surface can be crushed by the cutter ring 240 .
[0035] As a preferred embodiment, please refer to Figure 1 The rotor assembly 200 further includes a retaining ring 250 , which is disposed on one side of the knife ring 240 and can be detachably fixedly sleeved on the knife body 210 . The position of the knife ring 240 can be limited by the retaining ring 250 .
[0036] As a preferred embodiment, please refer to Figure 1 The stator assembly 100 further includes two end covers 120, which are relatively fixedly mounted on the knife shaft 110, and both ends of the knife body 210 are rotatably mounted on the corresponding end covers 120, and the two end covers 120, the knife body 210 and the knife shaft 110 enclose the cavity.
[0037] As a preferred embodiment, please refer to Figure 1 The spacer ring type detection hob also includes two bearings 400. The two bearings 400 are both arranged in the cavity and are respectively located on both sides of the spacer ring 230. The inner rings of the two bearings 400 are both sleeved on the knife shaft 110 and are both interference connected with the knife shaft 110. The outer rings of the two bearings 400 are both interference connected with the knife body 210 to improve the rotational connection strength between the knife body 210 and the knife shaft 110.
[0038] As a preferred embodiment, please refer to Figure 1 The ring-type detection hob also includes a sealing assembly 500, and the sealing assembly 500 includes a plurality of sealing rings 510. Each of the sealing rings 510 is respectively arranged at the connection between the end cover 120 and the cutter body 210 to avoid oil leakage.
[0039] As a preferred embodiment, please refer to Figure 1 , both end covers 120 are provided with an oil filling hole 121, and the sealing assembly 500 also includes two screw plugs, which are detachably arranged in the corresponding oil filling holes 121 to open or close the oil filling holes 121. When the hob is sealed and placed, the oil filling hole 121 is blocked by the screw plug so that the oil filling hole 121 is in a closed state. When the hob is in use, the screw plug is removed from the oil filling hole 121 to open the oil filling hole 121, and the oil filling hole 121 is connected to the matching lubricating oil connecting pipeline.
[0040] As a preferred embodiment, the monitoring mechanism 300 also includes a temperature sensor, which is arranged in the cavity and is used to monitor the internal temperature of the cavity to prevent the roller from overloading and causing the internal temperature to be too high, resulting in excessive pressure, oil leakage or sealing failure, etc.
[0041] Please refer to Figure 3 and Figure 4Based on the above-mentioned isolation ring type detection hob, the utility model also provides a knife box, including a box body 600, the above-mentioned isolation ring type detection hob and a lock 700, the knife shaft 110 is arranged in the box body 600, and both ends of the knife shaft 110 are clamped with the box body 600, the lock 700 is fixedly connected to the box body 600, and is used to fix the output cable of the control board, and the lock 700 can not only protect the output cable of the control board but also fix the output cable of the control board.
[0042] In order to better understand the present invention, the following Figure 1 - Figure 4 The working principle of the technical solution of the utility model is described in detail:
[0043] When in use, the box body 600 is detachably fixed in the cutter groove provided on the cutter disc, and the rotation of the cutter disc drives the entire roller cutter to revolve, and the rotation of the cutter body 210 relative to the cutter shaft 110 is then used to crush and break the rock surface to complete the excavation. When the roller cutter is working, the cutter body 210 rotates relative to the cutter shaft 110, which drives each of the spacer blocks 220 to rotate. Each of the spacer blocks 220 will pass through the probe 310 in turn. The probe 310 can sense each of the spacer blocks 220 passing by and output an electrical signal. The control board can receive the electrical signal and convert the electrical signal into the rotation speed of the cutter body 210. By monitoring the rotation speed of the cutter body 210, the working condition of the roller cutter can be predicted. When the roller cutter is worn eccentrically or damaged, a response can be made in time to prevent the working condition from becoming difficult, thereby ensuring the normal excavation of the roller cutter.
[0044] The utility model provides a ring-type detection hob and a cutter box, which has the following beneficial effects:
[0045] (1) The lock 700 can protect the output cables of the control panel and also fix the output cables of the control panel;
[0046] (2) When the hob is working, the cutter body 210 rotates relative to the cutter shaft 110, which drives each of the spacers 220 to rotate. Each of the spacers 220 passes through the probe 310 in sequence. The probe 310 can sense each of the spacers 220 passing by and output an electrical signal. The control board can receive the electrical signal and convert the electrical signal into the rotation speed of the cutter body 210. By monitoring the rotation speed of the cutter body 210, it can be determined whether the hob has eccentric wear, is about to have eccentric wear, or has been abnormally damaged.
[0047] (3) By monitoring the rotation speed of the cutter body 210, the working condition of the roller cutter can be predicted. When the roller cutter is worn or damaged, a response can be made in time to prevent the working condition from becoming difficult, thereby ensuring the normal excavation of the roller cutter.
[0048] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.
Claims
1. A ring-type detection hob, It is characterized in that include: a stator assembly including a knife shaft; A rotor assembly, comprising a cutter body and at least one spacer, wherein the cutter body is rotatably sleeved on the cutter shaft and forms a closed cavity with the cutter shaft, and each of the spacers is disposed in the cavity and fixedly connected to the cutter body; The monitoring mechanism comprises at least one probe, each of which is arranged in the cavity and is detachably fixed to the knife shaft, and is used for sensing each of the spacers passing by and outputting an electrical signal.
2. The ring-type detection hob according to claim 1, It is characterized in that The monitoring mechanism also includes a control board and a control box. The control board is electrically connected to each of the probes for receiving electrical signals and converting the electrical signals into the rotation speed of the knife body. The control box is detachably fixed to one end of the knife shaft via screws for accommodating the control board.
3. The ring-type detection hob according to claim 2, It is characterized in that At least one clamping hole is provided on the side wall of the knife shaft, each of the clamping holes extends radially, and each of the probes is clamped in the corresponding clamping hole.
4. The ring-type detection hob according to claim 3, It is characterized in that One end of the knife shaft is provided with a mounting groove, and the control box is placed in the mounting groove.
5. The ring-type detection hob according to claim 4, It is characterized in that The knife shaft is also provided with a connecting channel, which extends axially, and the two ends of the connecting channel are respectively connected with the mounting groove and the inner ends of each of the card holes, so as to allow the wires electrically connecting the control board and each of the probes to pass through.
6. The ring-type detection hob according to claim 1, It is characterized in that The rotor assembly also includes a spacer ring, which is arranged at the middle position of the cavity and sleeved on the knife shaft. The outer wall of the spacer ring is fixedly connected to the knife body, and each of the spacer blocks is fixedly connected to the inner wall of the spacer ring. Each of the spacer blocks has a distance from the side wall of the knife shaft, and each of the probes is aligned with the spacer ring.
7. The ring-type detection hob according to claim 1, It is characterized in that The stator assembly further comprises two end covers, which are relatively fixedly sleeved on the knife shaft, and the two ends of the knife body are rotatably sleeved on the corresponding end covers respectively.
8. The ring-type detection hob according to claim 6, It is characterized in that It also includes two bearings, which are both arranged in the cavity and respectively located on both sides of the spacer ring. The inner rings of the two bearings are both sleeved on the knife shaft and are both interference connected with the knife shaft. The outer rings of the two bearings are both interference connected with the knife body.
9. The ring-type detection hob according to claim 7, It is characterized in that It also includes a sealing component, which includes a plurality of sealing rings, each of which is respectively arranged at the connection between the end cover and the knife body.
10. A knife box, It is characterized in that It comprises a box body, a ring-type detection hob as described in any one of claims 1 to 9, and a lock, wherein the knife shaft is arranged in the box body, both ends of the knife shaft are snap-connected with the box body, and the lock is fixedly connected with the box body and used to fix the output cable of the monitoring mechanism.