CN220976326U - Travelling wheel of multifunctional electrolytic aluminum crown block additionally provided with encoder - Google Patents
Travelling wheel of multifunctional electrolytic aluminum crown block additionally provided with encoder Download PDFInfo
- Publication number
- CN220976326U CN220976326U CN202322767655.9U CN202322767655U CN220976326U CN 220976326 U CN220976326 U CN 220976326U CN 202322767655 U CN202322767655 U CN 202322767655U CN 220976326 U CN220976326 U CN 220976326U
- Authority
- CN
- China
- Prior art keywords
- wheel
- encoder
- wheel body
- crown block
- travelling
- 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.)
- Active
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 230000007797 corrosion Effects 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model discloses a travelling wheel with an encoder additionally arranged on an electrolytic aluminum multifunctional crown block, which belongs to the technical field of travelling wheels of crown blocks and comprises a wheel body, an end cover, an encoder and a pressure monitoring component. The beneficial effects of the utility model are as follows: through the encoder that sets up on the overhead traveling crane walking wheel, can gather walking wheel operation information, the follow-up analysis overhead traveling crane walking wheel walking orbit of being convenient for, position detection, the condition such as walking code speed measurement, the staff of being convenient for master overhead traveling crane walking wheel operation condition, through the pressure sensor in the walking wheel, can monitor the pressure that walking wheel operation in-process bore, send when walking wheel bears higher pressure and remind, the staff of being convenient for in time overhauls the change.
Description
Technical Field
The utility model relates to the technical field of travelling wheels of crown blocks, in particular to a travelling wheel of an electrolytic aluminum multifunctional crown block additionally provided with an encoder.
Background
The crown block is hoisting equipment for hoisting materials in workshops, warehouses and stock yards. The bridge-like shape is obtained by sitting on tall concrete columns or metal supports at both ends. The bridge frame of the bridge crane runs longitudinally along the tracks paved on the overhead frames at two sides, can fully utilize the space below the bridge frame to hoist materials, is not hindered by ground equipment, is a hoisting machine with the widest application range and the largest number, and is an important component part in the crown block of an electrolytic aluminum factory workshop.
In the prior art, the multifunctional crown block travelling wheel of electrolytic aluminum adopts a variable frequency drive and shaft-mounted speed reducer type travelling mode, information acquisition is single, equipment service conditions are not easy to master, people and machines cannot be interconnected, the overall strength of the travelling wheel is not high, the compression resistance and bearing capacity are required to be improved, a pressure monitoring structure is lacked, the practicability of the travelling wheel is required to be improved, meanwhile, the crown block travelling wheel comprises a wheel body, a first side cover and a second side cover, the two ends of the wheel body are respectively provided with the first side cover and the second side cover, one end of the second side cover is provided with a preformed hole, the outer side of the preformed hole is connected with a hollow column, a thread groove is formed in the hollow column, one end of the first side cover is provided with a limiting hole, a connecting bolt is arranged in the limiting hole in a penetrating mode, the end of the connecting bolt penetrates through the through hole and is connected with the thread groove, and the structure is simple, the practicability of the travelling wheel body is not convenient to record and analyze travelling track, position detection, travelling code and other conditions.
Disclosure of utility model
In order to overcome the problems that in the prior art, all travelling wheels of an electrolytic aluminum multifunctional crown block adopt a variable frequency drive and shaft-mounted speed reducer type travelling mode, information acquisition is single, equipment service conditions are not easy to master, people and machines cannot be interconnected, the overall strength of the travelling wheels is not high, compression resistance and bearing capacity are required to be improved, a pressure monitoring structure is lacked, practicability of the travelling wheels is required to be improved, and the like, the utility model provides the travelling wheels of the electrolytic aluminum multifunctional crown block additionally provided with an encoder, which comprise a wheel body, an end cover, an encoder and a pressure monitoring assembly, one side of the wheel body is provided with the end cover, an opening communicated with the wheel body is formed in the middle of the end cover, the encoder is installed in the opening, one side of the wheel body away from the end cover is provided with a wheel shaft, the wheel shaft penetrates through the wheel body and is connected with the encoder, the pressure monitoring assembly is arranged inside the wheel body, and comprises a pressure sensor and an alarm, and the pressure sensor and the alarm are arranged inside the wheel body and the detection end of the pressure sensor is uniformly distributed along the outer circumference of the wheel body.
Through setting up the encoder on the multi-functional crown block walking wheel of electrolytic aluminum, can be along with the walking wheel operation, gather walking wheel operation information, the follow-up analysis crown block walking orbit of being convenient for, position detection, the condition such as walking code speed measurement, the staff of being convenient for controls crown block walking wheel operation condition, for the management of walking wheel has brought the convenience, through the pressure sensor that sets up in the walking wheel, can monitor the pressure that the walking wheel operation in-process bore, send the warning when walking the walking wheel bears higher pressure, the staff of being convenient for in time overhauls and changes.
Preferably, one end of the encoder, which is close to the wheel body, is connected with an axle coupler, and the axle coupler is connected with the wheel axle.
Preferably, a protective shell is arranged outside the encoder, and the outer edge of the protective shell is in threaded connection with the end cover.
Preferably, the outer ring of the wheel body is sleeved with an annular reinforcing plate, and the outer surface of the reinforcing plate is provided with a wear-resistant layer.
Through setting up in the outside reinforcing plate of walking wheel, can promote walking wheel intensity, make it have higher bearing capacity to it is not fragile, through the outside wearing layer of walking wheel, can improve wear resistance, make the wearing and tearing that the walking wheel produced after long-time use further reduce, improved the life of walking wheel.
Preferably, an indicator light is arranged on the front face of the end cover, and the indicator light and the alarm are electrically connected with the pressure sensor.
Preferably, one side of the wheel body far away from the end cover is provided with an annular limiting plate, one side of the limiting plate far away from the wheel body is provided with an auxiliary wheel, and the wheel body, the end cover, the limiting plate and the auxiliary wheel are all coaxially arranged.
Preferably, the encoder is provided with a mounting plate, the mounting plate is connected with the middle part of the wheel body through a plurality of fixing bolts, and the wheel body is connected with the end cover through a plurality of fastening bolts. The encoder is easy to assemble and disassemble, the protection capability is improved through the protection shell, and the protection shell is disassembled when overhauling, so that the inner elements of the travelling wheel and the encoder are disassembled, and the practicability of the travelling wheel is further improved.
Preferably, one end of the wheel shaft, which is far away from the wheel body, is provided with a plurality of connecting holes.
Preferably, the auxiliary wheel and the outer surface of the wheel body are both provided with corrosion-resistant layers, and the corrosion-resistant layers are made of corrosion-resistant coating materials.
Preferably, the surface of the protective shell is provided with a plurality of heat dissipation holes.
Through the heat dissipation hole, the encoder can be convenient for dispel the heat, and the temperature is too high when avoiding its long-time operation.
The beneficial effects are that:
the technical scheme of the utility model has the following beneficial effects:
(1) Through setting up the encoder on the multi-functional crown block walking wheel of electrolytic aluminum, can be along with the walking wheel operation, gather walking wheel operation information, the follow-up analysis crown block walking orbit of being convenient for, position detection, the condition such as walking code speed measurement, the staff of being convenient for controls crown block walking wheel operation condition, has brought the convenience for the management of walking wheel, through setting up the inductor in the walking wheel, can monitor the pressure that the walking wheel operation in-process bore, sends the warning when walking wheel bears higher pressure, the staff of being convenient for in time overhauls the change.
(2) Through setting up in the outside reinforcing plate of walking wheel, can promote walking wheel intensity, make it have higher bearing capacity to it is not fragile, through the outside wearing layer of walking wheel, can improve wear resistance, make the wearing and tearing that the walking wheel produced after long-time use further reduce, improved the life of walking wheel.
(3) The encoder is easy to assemble and disassemble, the protection capability is improved through the protection shell, and the protection shell is disassembled when overhauling, so that the inner elements of the travelling wheel and the encoder are disassembled, and the practicability of the travelling wheel is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall perspective structure of a travelling wheel with an encoder added to an electrolytic aluminum multifunctional crown block;
FIG. 2 is a schematic diagram of a connection structure of the front surface of a travelling wheel of the multifunctional electrolytic aluminum crown block provided with an encoder;
FIG. 3 is a schematic diagram of a connection structure of a side surface of a travelling wheel of the multifunctional electrolytic aluminum crown block provided with an encoder;
FIG. 4 is a cross-sectional view of the side of a traveling wheel of the electrolytic aluminum multifunctional crown block of the present utility model with an encoder attached.
In the figure: 1. a wheel body; 2. an end cap; 3. a wheel axle; 4. an encoder; 5. a fastening bolt; 6. a reinforcing plate; 7. a wear-resistant layer; 8. a mounting plate; 9. a fixing bolt; 10. a pressure sensor; 11. a limiting plate; 12. an auxiliary wheel; 13. a connection hole; 14. a shaft coupler; 15. a corrosion resistant layer; 16. a protective shell; 17. an alarm; 18. an indicator light.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
According to the embodiment, through the encoder arranged on the travelling wheel of the multifunctional crown block for electrolytic aluminum, travelling wheel operation information can be acquired along with travelling wheel operation, the conditions such as travelling track, position detection and travelling code speed measurement of follow-up analysis equipment are facilitated, workers can conveniently control travelling wheel operation conditions of the crown block, convenience is brought to management of the travelling wheels, pressure born in the travelling wheel operation process can be monitored through the sensor arranged in the travelling wheels, reminding can be sent out when the travelling wheel bears higher pressure, and the travelling wheel is convenient for the workers to overhaul and replace in time. The specific implementation mode is as follows:
As shown in fig. 1 to 4, a travelling wheel of an electrolytic aluminum multifunctional crown block additionally provided with an encoder comprises a wheel body 1, an end cover 2, the encoder 4 and a pressure monitoring assembly, wherein the end cover 2 is arranged on one side of the wheel body 1, an opening communicated with the wheel body 1 is formed in the middle of the end cover 2, the encoder 4 is arranged in the opening, the wheel body 1 is provided with a wheel shaft 3 on one side far away from the end cover 2, the wheel shaft 3 penetrates through the wheel body 1 to be connected with the encoder 4, the pressure monitoring assembly is arranged in the wheel body 1 and comprises a pressure sensor 10 and an alarm 17, and the pressure sensor 10 and the alarm 17 are arranged in the wheel body 1 and the detection end of the pressure sensor 10 is uniformly distributed along the outer circumference of the wheel body 1. Through setting up the encoder 4 on the multi-functional crown block walking wheel of electrolytic aluminum, can be along with the walking wheel operation, gather walking wheel operation information, the follow-up analysis crown block walking orbit of being convenient for, position detection, the condition such as walking code speed measurement, the staff of being convenient for controls crown block walking wheel operation condition, for the management of walking wheel has brought the convenience, through setting up the pressure sensor 10 in the walking wheel, can monitor the pressure that the walking wheel operation in-process bore, send the warning when the walking wheel bears higher pressure, the staff of being convenient for in time overhauls and changes.
The one end that encoder 4 is close to wheel body 1 is connected with the axle coupler 14, and axle coupler 14 links to each other with shaft 3, connects encoder 4 and shaft 3 through axle coupler 14, can closely link to each other for encoder 4 can rotate along with the rotation of shaft 3, improves the detection effect.
The outside of encoder 4 is provided with protecting crust 16, and the outer edge and the end cover 2 threaded connection of protecting crust 16, through the setting of protecting crust 16, can protect encoder 4, avoid it to collide and appear damaging.
The outer lane cover of wheel body 1 is equipped with annular reinforcing plate 6, and the surface of reinforcing plate 6 is provided with wearing layer 7. Through setting up in the outside reinforcing plate 6 of walking wheel, can promote walking wheel intensity, make it have higher bearing capacity to it is not fragile, through the outside wearing layer 7 of walking wheel, can improve wear resistance, make the wearing and tearing that the walking wheel produced after long-time use further reduce, improved the life of walking wheel, the material of wearing layer 7 is ceramic wear-resistant material.
The front of end cover 2 is provided with pilot lamp 18, pilot lamp 18 and alarm 17 all with pressure sensor 10 electric connection, through pilot lamp 18, can link with alarm 17 to realize audible and visual alarm's function, when pressure sensor 10 detects the walking wheel pressure anomaly, can flash, thereby improve the alarm effect.
One side that end cover 2 was kept away from to wheel body 1 is provided with annular limiting plate 11, and auxiliary wheel 12 is installed to one side that wheel body 1 was kept away from to limiting plate 11, wheel body 1, end cover 2, limiting plate 11 and auxiliary wheel 12 all coaxial setting, and through limiting plate 11, it is spacing when running wheel and crown block track link to each other, through auxiliary wheel 12's setting, can link to each other with crown block brake equipment, the brake of walking wheel of being convenient for also can guide the walking wheel and remove.
The encoder 4 is provided with a mounting plate 8, the mounting plate 8 is connected with the middle part of the wheel body 1 through a plurality of fixing bolts 9, and the wheel body 1 is connected with the end cover 2 through a plurality of fastening bolts 5. Encoder 4 easily assembles and dismantles, and accessible protecting crust 16 improves the protective capability to demolish when the maintenance, thereby dismantle walking wheel internal element and encoder 4, further have put forward the practicality of walking wheel.
One end of the wheel axle 3 far away from the wheel body 1 is provided with a plurality of connecting holes 13, and the connection between the wheel axle 3 and the crown block can be enhanced when the wheel axle 3 is connected with the crown block through the connecting holes 13.
The auxiliary wheel 12 and the outer surface of the wheel body 1 are both provided with a corrosion-resistant layer 15, the material of the corrosion-resistant layer 15 is a corrosion-resistant coating material, and the corrosion resistance of the whole walking wheel can be improved through the corrosion-resistant layer 15.
The surface of the protective shell 16 is provided with a plurality of heat dissipation holes. Through the heat dissipation hole, the encoder 4 can be convenient for dissipate heat, and the temperature is prevented from being too high during long-time operation.
Working principle: the travelling wheel is connected with the crown block through the wheel shaft, through the encoder arranged on the travelling wheel of the crown block, travelling wheel operation information can be acquired along with travelling wheel operation, travelling wheel operation information is convenient for follow-up analysis of travelling track of the crown block, position detection, travelling code speed measurement and other conditions, thereby the travelling wheel operation condition of the crown block is convenient for staff to control, convenience is brought to the management of the travelling wheel, the pressure sensor arranged in the travelling wheel can monitor the pressure born in the travelling wheel operation process, the alarm and the indicator light are sent out when the travelling wheel bears higher pressure, the staff is convenient to overhaul and replace in time, the encoder is easy to assemble and disassemble, the protective shell can be used for improving the protective capability, and the encoder is disassembled when overhauling, so that the travelling wheel internal element and the encoder are disassembled, the practicability of the travelling wheel is further improved, the travelling wheel strength can be improved through the reinforcing plate arranged outside the travelling wheel, the travelling wheel is not easy to damage, the wear resistance is improved through the wear resistance layer outside the travelling wheel, the travelling wheel is further reduced after long-time use, and the service life of the travelling wheel is prolonged.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a multifunctional crown block of electrolytic aluminum installs walking wheel of encoder additional, its characterized in that, including wheel body (1), end cover (2), encoder (4) and pressure monitoring subassembly, one side of wheel body (1) is provided with end cover (2), the middle part of end cover (2) is formed with the opening that is linked together with wheel body (1), install in the opening encoder (4), wheel body (1) are kept away from one side of end cover (2) is provided with shaft (3), shaft (3) pass wheel body (1) with encoder (4) link to each other, the inside of wheel body (1) is provided with pressure monitoring subassembly, pressure monitoring subassembly includes pressure sensor (10) and alarm (17), pressure sensor (10) and alarm (17) all set up in wheel body (1) inside and the outer circumference evenly distributed of wheel body (1) is followed to the detection end of pressure sensor (10).
2. The travelling wheel with the encoder additionally installed for the multifunctional crown block for electrolytic aluminum according to claim 1, wherein one end, close to the wheel body (1), of the encoder (4) is connected with a shaft coupler (14), and the shaft coupler (14) is connected with the wheel shaft (3).
3. The travelling wheel of the multifunctional crown block with the encoder for electrolytic aluminum according to claim 1, wherein a protecting shell (16) is arranged outside the encoder (4), and the outer edge of the protecting shell (16) is in threaded connection with the end cover (2).
4. The travelling wheel of the multifunctional crown block with the encoder for electrolytic aluminum according to claim 1, wherein an annular reinforcing plate (6) is sleeved on the outer ring of the wheel body (1), and a wear-resistant layer (7) is arranged on the outer surface of the reinforcing plate (6).
5. The travelling wheel of the multifunctional crown block with the encoder for electrolytic aluminum according to claim 1, wherein an indicator lamp (18) is arranged on the front surface of the end cover (2), and the indicator lamp (18) and the alarm (17) are electrically connected with the pressure sensor (10).
6. The travelling wheel of the encoder additionally installed on the multifunctional crown block for electrolytic aluminum according to claim 1, wherein an annular limiting plate (11) is arranged on one side, away from the end cover (2), of the wheel body (1), an auxiliary wheel (12) is arranged on one side, away from the wheel body (1), of the limiting plate (11), and the wheel body (1), the end cover (2), the limiting plate (11) and the auxiliary wheel (12) are coaxially arranged.
7. The travelling wheel of the multifunctional crown block with the encoder for electrolytic aluminum according to claim 1, wherein a mounting plate (8) is arranged on the encoder (4), the mounting plate (8) is connected with the middle part of the wheel body (1) through a plurality of fixing bolts (9), and the wheel body (1) is connected with the end cover (2) through a plurality of fastening bolts (5).
8. The travelling wheel of the multifunctional crown block with the encoder for electrolytic aluminum according to claim 1, wherein a plurality of connecting holes (13) are formed at one end of the wheel shaft (3) far away from the wheel body (1).
9. The travelling wheel of the multifunctional crown block with the encoder for electrolytic aluminum according to claim 6, wherein the outer surfaces of the auxiliary wheel (12) and the wheel body (1) are provided with corrosion-resistant layers (15), and the corrosion-resistant layers (15) are made of corrosion-resistant coating materials.
10. A travelling wheel of an electrolytic aluminum multifunctional crown block additionally provided with an encoder according to claim 3, wherein a plurality of heat dissipation holes are formed on the surface of the protective shell (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322767655.9U CN220976326U (en) | 2023-10-16 | 2023-10-16 | Travelling wheel of multifunctional electrolytic aluminum crown block additionally provided with encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322767655.9U CN220976326U (en) | 2023-10-16 | 2023-10-16 | Travelling wheel of multifunctional electrolytic aluminum crown block additionally provided with encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220976326U true CN220976326U (en) | 2024-05-17 |
Family
ID=91067036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322767655.9U Active CN220976326U (en) | 2023-10-16 | 2023-10-16 | Travelling wheel of multifunctional electrolytic aluminum crown block additionally provided with encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220976326U (en) |
-
2023
- 2023-10-16 CN CN202322767655.9U patent/CN220976326U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103086282A (en) | Intelligent early warning outside climbing system for heavy construction crane | |
| CN220976326U (en) | Travelling wheel of multifunctional electrolytic aluminum crown block additionally provided with encoder | |
| CN102951218B (en) | Easy-to-assemble supporting wheel and track frame | |
| CN108975163A (en) | A kind of method of bridge crane wheel group operational safety detection | |
| CN211448542U (en) | Energy-saving anti-corrosion wear-resistant wrapped sucker rod | |
| CN206048254U (en) | A kind of seamless spliced installation adjusting device of truss robot multistage beam guideway | |
| CN216284713U (en) | Detection tool of magnetic core breaking strength | |
| CN208666969U (en) | MC nylon wheel series JDB strength coaster | |
| CN211895696U (en) | A hook assembly for hoisting shield constructs quick-witted blade disc | |
| CN209207348U (en) | The dismantling device of bolt is fixedly connected in a kind of confined space | |
| CN202270950U (en) | Continuous casting machine water cooling roller way | |
| CN104692256B (en) | Lifting equipment safety control method | |
| CN202322017U (en) | Wheel group for bridge crane | |
| CN205886999U (en) | Removable crown | |
| CN207204891U (en) | A kind of practical and convenient coil stripping car device | |
| CN218664941U (en) | Special lifting appliance for turning over ultra-large oil cylinder | |
| CN111231580A (en) | Motor vehicle axle with function of changing stress state | |
| CN107381336B (en) | Metallurgy casting crane plate hook and manufacturing method thereof | |
| CN110539819A (en) | Climbing robot for pull rod detection | |
| CN208827978U (en) | A kind of support roller with bearing | |
| CN205600637U (en) | Naval vessel diesel engine drive chain mounting tool | |
| CN210912305U (en) | Integrated crank shaft with temperature monitoring device | |
| CN203944658U (en) | A kind of kink wheel of detachable wearing layer | |
| CN214648327U (en) | Colliery is alarm sensor fixing device in pit | |
| CN216803276U (en) | Special tool for disassembling mobile mechanical brake drum |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |