CN212684360U - Electric rotating clamp for rock cutting machine - Google Patents
Electric rotating clamp for rock cutting machine Download PDFInfo
- Publication number
- CN212684360U CN212684360U CN202021234952.7U CN202021234952U CN212684360U CN 212684360 U CN212684360 U CN 212684360U CN 202021234952 U CN202021234952 U CN 202021234952U CN 212684360 U CN212684360 U CN 212684360U
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- rock
- cutting machine
- frame
- jaw self
- rock cutting
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- 239000011435 rock Substances 0.000 title claims abstract description 122
- 238000005520 cutting process Methods 0.000 title claims abstract description 109
- 239000000463 material Substances 0.000 claims description 9
- 210000000078 claw Anatomy 0.000 claims description 7
- 229910018487 Ni—Cr Inorganic materials 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 5
- 238000005119 centrifugation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of machinery, in particular to an electric rotating clamp for a rock cutting machine, which comprises a guide rail, a special-shaped frame and a roller center frame which are arranged on the guide rail through a linear bearing slider, the rock cutting machine which is arranged between the special-shaped frame and the roller center frame, and a four-jaw self-centering chuck which is arranged on the special-shaped frame, wherein the tail end of the four-jaw self-centering chuck is connected with the driving end of a motor which is embedded in the special-shaped frame horizontally through a bearing, and the motor drives the four-jaw self-centering chuck to rotate around the shaft center to drive a rock sample; the two ends of the cylindrical rock sample are firmly fixed by the four-jaw self-centering chuck and the roller center frame, the cylindrical rock sample is horizontally arranged above a cutting table of the rock cutting machine, and a circular blade of the rock cutting machine is perpendicular to the cylindrical rock sample. The utility model discloses can realize among the rock cutting process cylindricality sample and rotate around the axle center in succession, and can accurately confirm the cutting position rapidly.
Description
Technical Field
The utility model relates to the technical field of machinery, concretely relates to electric rotary fixture for rock cutting machine.
Background
In the related tests for researching rock and concrete, a columnar sample is often cut along the radial direction according to the test requirements, and the cutting is mainly realized by a rock cutting machine at present. The rock cutting machine is not provided with a special sample fixing clamp, different clamping methods are reasonably selected according to the shape and the size of a sample, and the sample is firmly fixed, otherwise, the cutting quality cannot be ensured, and even the safety problem can be caused.
The clamps used in the current rock cutting process mainly comprise V-shaped clamping groove type rock sample clamps, and although the clamps are widely suitable for fixing samples with different sizes, fixed ends can deviate at a certain angle in the cutting process; and because the rock cutting blade is cut by one side, the sample atress is inhomogeneous, and the sample of cutting is easy to break edge, quality is relatively poor. In addition, the original sample size needs to be manually measured and the drawn line is marked before the sample with the specified size is cut, the process is complicated, and the marked line is easy to be shielded, so that the actual size of the cut sample is not consistent with the designed size, and the waste is caused by repeated operation. On the basis, the L-shaped graduated scale is additionally arranged on the outer side of the positioning frame, so that the cutting length can be conveniently and accurately checked and adjusted, but the sample is still fixed on one side, so that the flatness of the end face of the cut sample is poor, and the cutting quality is poor.
Therefore, in the cutting process, the cutting position needs to be conveniently determined while the cylindrical sample is firmly fixed, and the flatness and the integrity of the cutting surface are ensured, so that the problems to be solved in rock cutting are solved by improving the cutting quality, the cutting precision and the cutting efficiency of the sample.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an electric rotary clamp for rock cutting machine, this anchor clamps can be at the firm fixed cylindricality sample of rock cutting in-process to make the sample around axle center continuous rotation, ensure the roughness and the integrality of cutting plane, and can confirm the cutting position fast accurately, thereby solve sample cutting plane cutting quality problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an electric rotary clamp for a rock cutting machine comprises a guide rail, a special-shaped frame and a roller center frame which are arranged on the guide rail through linear bearing sliders, the rock cutting machine arranged between the special-shaped frame and the roller center frame, and a four-jaw self-centering chuck arranged on the special-shaped frame, wherein the tail end of the four-jaw self-centering chuck is connected with the driving end of a motor which is horizontally embedded in the special-shaped frame through a bearing, and the motor drives the four-jaw self-centering chuck to rotate around the axis;
the four-jaw self-centering chuck consists of a circular chuck body and four jaws, the four jaws are uniformly and symmetrically embedded in the inner side of the four-jaw self-centering chuck, connecting lines of the four jaws and the circle center of the circular chuck body form 90 degrees, and four-side clamping is formed on one end of a cylindrical rock sample; the gyro wheel centre frame comprises base, the ring frame on the mounting base and the three gyro wheel jack catch of installing on circular frame, three gyro wheel jack catch and the line in the ring frame centre of a circle of each other become 120, form trilateral centre gripping to the cylindricality rock specimen other end, cylindricality rock specimen level sets up in the cutting bed top of rock cutting machine, four-jaw self-centering disc, gyro wheel centre frame and cylindricality rock specimen axle center are on same water flat line, relative level is no longer than 0.1mm, the guide rail passes the base of rock cutting machine, the circular blade of rock cutting machine is mutually perpendicular with cylindricality rock specimen.
Furthermore, the special-shaped frame is in a door arch shape, the motor is embedded into a through circular hole at the upper part of the special-shaped frame, two symmetrical bases are arranged at the bottom of the special-shaped frame, and a through bolt hole is formed in the center of each base; the linear bearing slide block is fixedly connected with the base through a bolt.
Furthermore, the bottom end of the circular frame is fixed on the base, and two bolt holes are symmetrically arranged on the part of the bottom end of the base extending to two sides; the linear bearing sliding block is connected with the bolt hole through a bolt.
Furthermore, four jack catchs can regard as two kinds of types of positive claw and anti-claw, are applicable to the less and great rock specimen of diameter respectively, and there is a round hole circular disk side, and the round hole is inside to be little bevel gear, and when using the spanner to rotate little bevel gear, four jack catchs are close to or withdraw from to the center simultaneously for the rock sample of different diameters of centre gripping has the function of self-centering simultaneously.
Further, the motor is cylindrical, and the tail end of the motor is connected with a power supply through a lead, wherein the power supply is preferably 220V alternating current power supply.
Further, the top bolts of the three roller clamping jaws can be respectively adjusted according to the diameters of cylindrical rock samples by the roller center frame, so that the rollers at the tail ends of the clamping jaws are in contact with the cylindrical rock samples, the phenomenon that the cutting surface is broken due to the fact that rock rods are tilted when the rock is cut is avoided, and the rock sample is guaranteed not to be centrifuged and firmly fixed in the cutting process.
Further, the guide rail is two parallel welded connection's linear rails, and the side of guide rail sets up the scale, can require according to the experiment that rock specimen cutting position is confirmed to convenient accuracy to adjust rock specimen cutting position indirectly through the linear bearing slider, the scale is parallel with the side of cylindricality rock specimen, and is perpendicular with the circular blade of rock cutting machine, and the straightness tolerance that hangs down is less than 0.05 mm.
Further, the linear bearing sliding block freely slides along the guide rail, and the position of the roller center frame, the four-jaw self-centering chuck and the motor on the guide rail integrally is adjusted according to the length of the rock rod.
Furthermore, the thickness of the four-jaw self-centering chuck is 100mm, the inner diameter of the ring is 100mm, the outer diameter of the four-jaw self-centering chuck is 300mm, the height of the circle center of the circular chuck is 200mm, the four-jaw self-centering chuck is made of nickel-chromium steel materials, and all parts of the four-jaw self-centering chuck are subjected to rust prevention treatment, so that the chuck is not corroded under the condition of water spray cooling in the cutting process of a rock sample.
Furthermore, the inner diameter of a circular frame of the roller center frame is 280mm, the outer diameter of the circular frame is 300mm, the height of the circle center of the circular frame is 200mm, the preparation material is nickel-chromium steel, the material is prevented from deforming in the cutting process, the rock sample is firmly fixed in the cutting process, all parts of the roller center frame are subjected to rust prevention treatment, and the roller center frame is prevented from being corroded under the condition of water spraying and cooling in the rock sample cutting process.
The utility model discloses following beneficial effect has:
1) the utility model discloses well adoption electric four-jaw is from centering chuck, makes cylindricality rock specimen at the cutting in-process around the even continuous rotation of axle center, makes the cutting plane atress even, ensures the roughness and the integrality of cutting plane, cutting quality height.
2) The utility model discloses can with cylindricality sample level and firmly be fixed in the cutting bed of rock cutting, also guarantee the security of cutting operation when guaranteeing sample cutting quality.
3) The utility model discloses the scale that sets up on the guide rail can be according to the experiment requirement confirm the rock specimen cutting position conveniently accurately to adjust rock specimen cutting position through the slider, improve cutting efficiency when guaranteeing cutting accuracy.
4) The utility model discloses easy and simple to handle, it is sturdy and durable, extensively be applicable to samples such as all kinds of cylindricality rocks and concrete of unidimensional not.
5) The utility model discloses a manufacturing process method is simple, the equipment is quick, and the device cost is reasonable, has reduced the cost.
Drawings
FIG. 1 is a front view of the clamping device of the present invention;
FIG. 2 is a top view of the clamping device of the present invention;
FIG. 3 is a side view of the four-jaw self-centering chuck of the clamping apparatus of the present invention;
FIG. 4 is a side view of the roller center frame of the clamping device of the present invention;
FIG. 5 is a schematic view of the special-shaped frame of the device of the present invention;
FIG. 6 is a schematic perspective view of the present invention;
in the figure: 1. a four-jaw self-centering chuck; 1-1, a jaw; 1-2, a circular tray body; 1-3, a bevel pinion; 2. a columnar rock sample; 3. an electric motor; 3-1, motor lead; 4. a profiled frame; 4-1, round holes; 4-2, a base; 4-3, bolt holes; 5. a rock cutter; 5-1, a circular blade; 5-2, a base; 6. a roller center frame; 6-1, roller claws; 6-2, a circular frame; 6-3, a base; 6-4, bolt holes; 7. a linear bearing slider; 8. a bolt; 9. a guide rail; 9-1 and a graduated scale.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
As shown in fig. 1-6, the utility model discloses an electric rotary fixture for rock cutting machine, including guide rail 9, special-shaped frame 4 and gyro wheel center frame 6 installed on guide rail 9 through linear bearing slider 7, rock cutting machine 5 installed between special-shaped frame 4 and gyro wheel center frame 6 and four-jaw self-centering chuck 1 installed on special-shaped frame 4, the end of four-jaw self-centering chuck 1 is connected with the drive end of motor 3 embedded in special-shaped frame 4 horizontally through the bearing, motor 3 drives four-jaw self-centering chuck 1 to rotate around the axle center; the four-jaw self-centering chuck 1 consists of a circular chuck body 1-2 and four jaws 1-1; four clamping jaws 1-1 are uniformly and symmetrically embedded on the inner side of the four-jaw self-centering chuck 1, the connecting lines of the centers of the four clamping jaws 1-1 and the circular disk body 1-2 form 90 degrees, and four-side clamping is formed on one end of a cylindrical rock sample 2; the roller center frame 6 is composed of a base 6-3, a circular ring frame 6-2 installed on the base 6-3 and three roller clamping jaws 6-1 installed on the circular ring frame 6-2, the connecting lines of the centers of the three roller clamping jaws 6-1 and the circular ring frame 6-2 mutually form 120 degrees, three-side clamping is formed on the other end of the cylindrical rock sample 2, the cylindrical rock sample 2 is horizontally arranged above a cutting table of the rock cutting machine, and the four-jaw self-centering chuck 1 and the roller center frame 6 firmly fix the two ends of the cylindrical rock sample 2. The guide rail passes through a base 5-2 of the rock cutting machine, and a circular blade 5-1 of the rock cutting machine is perpendicular to the columnar rock sample 2.
In the embodiment, the special-shaped frame 4 is in a door arch shape, the motor 3 is embedded into a round hole 4-1 penetrating through the upper part of the special-shaped frame 4, two symmetrical bases 4-2 are arranged at the bottom of the special-shaped frame 4, and a penetrating bolt hole 4-3 is respectively arranged at the center of the base 4-2; the linear bearing slide block 7 is fixedly connected with the base 4-2 through a bolt 8.
In the embodiment, the bottom end of the circular frame 6-2 is fixed on the base 6-3, and two bolt holes 6-4 are symmetrically arranged on the part extending to two sides at the bottom end of the base 6-3; the linear bearing sliding block is connected with the bolt hole through a bolt 8.
In the embodiment, the four claws 1-1 can be used as a positive claw and a reverse claw and are respectively suitable for rock samples with smaller diameters and larger diameters, the side surface of the circular disc body 1-2 is provided with the circular hole 1-3, the small bevel gear is arranged inside the circular hole 1-3, when the small bevel gear is rotated by a wrench, the four claws simultaneously approach to or withdraw from the center to clamp rock samples with different diameters, and the automatic centering function is achieved.
In this embodiment, the motor 3 is cylindrical and has its end connected to a power supply, preferably 220V ac, via a conductor 3-1.
In this embodiment, the top bolt of three gyro wheel jack catch can be adjusted respectively to the gyro wheel centre frame according to the diameter of cylinder type rock sample, makes the terminal gyro wheel of jack catch and the contact of cylindricality rock sample, and rock bar perk causes the cutting plane to appear collapsing the limit phenomenon when avoiding the rock cutting, ensures that the rock sample does not take place centrifugation, firmly fixed in cutting process.
In the embodiment, the guide rails 9 are two linear rails connected in parallel in a welded mode, the included angle formed by the two guide rails is smaller than 0.5 degrees, the side faces of the guide rails 9 are provided with the graduated scales 9-1, the rock sample cutting position can be conveniently and accurately determined according to experimental requirements, the rock sample cutting position is indirectly adjusted through the linear bearing sliding blocks 7, the graduated scales 9-1 are parallel to the side faces of the columnar rock samples 2 and are perpendicular to the circular blades 5-1 of the rock cutting machine 5, and the perpendicularity tolerance is smaller than 0.05 mm.
In the embodiment, the linear bearing sliding block 7 freely slides along the guide rail, and the position of the roller center frame, the four-jaw self-centering chuck and the motor on the guide rail as a whole is adjusted according to the length of a rock rod.
In this embodiment, the thickness of four-jaw self-centering chuck is 100mm, ring internal diameter 100mm, external diameter 300mm, and the height in the circular chuck centre of a circle is 200mm, adopts nickel chromium steel material, and rust-resistant treatment is done to each part of four-jaw self-centering chuck, makes the chuck not corroded under the condition of rock sample cutting in-process water spray cooling.
In this embodiment, the inner diameter of the circular frame 6-2 of the roller center frame 6 is 280mm, the outer diameter is 300mm, the height of the circle center is 200mm, the preparation material is nickel-chromium steel, so that the material is not deformed in the cutting process, the rock sample is firmly fixed in the cutting process, and all the parts of the roller center frame 6 are subjected to rust prevention treatment, so that the roller center frame is not corroded under the condition of water spraying and cooling in the cutting process of the rock sample.
In this embodiment, the motor has a central height of 200mm and is a 180W single-phase motor. The length of the guide rail is 600mm, the preparation material is stainless steel, the sliding block can freely slide on the guide rail after cutting is completed, and the cutting device can be used repeatedly. A penetrating groove is formed in the base of the rock cutting machine, and the guide rail penetrates through the groove to be vertically connected with the rock cutting machine.
The utility model discloses when using: firstly, a linear bearing slide block 7 is arranged on a guide rail 9, and the linear bearing slide block 7 can be ensured to freely slide; then one end of the cylindrical rock sample 2 is placed in a range limited by four clamping jaws 1-1 of the four-jaw self-centering chuck 1, the center of the cylindrical rock sample is enabled to coincide with the center of the circular disk body 1-2, simultaneously, a small bevel gear 1-3 is rotated by a wrench, the four clamping jaws are enabled to firmly fix the cylindrical rock sample, then the position of a roller center frame 6 is adjusted according to the length of the cylindrical rock sample 2, the cylindrical rock sample is placed at the other end of the cylindrical rock sample 2, the cylindrical rock sample is enabled to be parallel to a guide rail 9, meanwhile, bolts on the upper portions of three rollers are adjusted, and the other end of the cylindrical rock sample 2 is. The position of a cylindrical rock sample cutting surface on a graduated scale 9-1 is determined according to experimental requirements, the whole electric fixture device is slid, the cutting surface of the cylindrical rock sample 2 is enabled to coincide with the plane of a circular blade 5-1 of a rock cutting machine, and a bolt 8 is used for firmly fixing a special-shaped frame 4, a roller center frame 6 and a linear bearing sliding block 7 on a guide rail 9 through a bolt hole 4-3 and a bolt hole 6-4 respectively. The power supply of the motor 3 is turned on, the cutting speed is adjusted and the experimental requirements are met, and the cylindrical rock sample 2 is cut by using the circular blade 5-1 of the rock cutting machine.
The anchor clamps of this concrete implementation can be with cylindricality sample level and firmly be fixed in the cutting bed top of rock cutting machine, make the cylindricality sample constantly at the uniform velocity rotatory around the axle center at the cutting in-process simultaneously, have guaranteed that the atress of cutting plane is even, and surfacing can not appear the condition of collapsing the limit moreover. In addition, the cutting position can be confirmed to the scale on the guide rail fast accurate, and the setting of bolt and linear bearing slider makes the operation very convenient.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. An electric rotary clamp for a rock cutting machine, characterized in that: the four-jaw self-centering device comprises a guide rail, a special-shaped frame and a roller center frame which are arranged on the guide rail through linear bearing sliding blocks, a rock cutting machine arranged between the special-shaped frame and the roller center frame, and a four-jaw self-centering chuck arranged on the special-shaped frame, wherein the tail end of the four-jaw self-centering chuck is connected with the driving end of a motor which is horizontally embedded and arranged in the special-shaped frame through a bearing, and the motor drives the four-jaw self-centering chuck to rotate around;
the four-jaw self-centering chuck consists of a circular chuck body and four jaws, the four jaws are uniformly and symmetrically embedded in the inner side of the four-jaw self-centering chuck, connecting lines of the four jaws and the circle center of the circular chuck body form 90 degrees, and four-side clamping is formed on one end of a cylindrical rock sample; the gyro wheel centre frame comprises the base, install the ring frame on the base, and install the three gyro wheel jack catch on the ring frame, three gyro wheel jack catch and the line in the ring frame centre of a circle of ring frame are each other into 120, form trilateral centre gripping to the cylindricality rock specimen other end, cylindricality rock specimen level sets up the cutting bed top at the rock cutting machine, cylindricality rock specimen, the axle center of four-jaw self-centering disc and ring frame of ring frame is on same water flat line, relative horizontal height is no longer than 0.1mm, the guide rail passes the base of rock cutting machine, the circular cutter piece of rock cutting machine is mutually perpendicular with cylindricality rock specimen.
2. An electrically powered rotary clamp for a rock cutting machine according to claim 1, wherein: the special-shaped frame is in a door arch shape, the motor is embedded into a penetrating circular hole in the upper part of the special-shaped frame, two symmetrical bases are arranged at the bottom of the special-shaped frame, and a penetrating bolt hole is formed in the center of each base; the linear bearing slide block is fixedly connected with the base through a bolt.
3. An electrically powered rotary clamp for a rock cutting machine according to claim 1, wherein: the bottom end of the circular frame is fixed on the base, and two bolt holes are symmetrically arranged on the part of the bottom end of the base extending to two sides; the linear bearing sliding block is connected with the bolt hole through a bolt.
4. An electrically powered rotary clamp for a rock cutting machine according to claim 1, wherein: four jack catchs can regard as two kinds of types of positive claw and anti-claw, are applicable to the less and great rock specimen of diameter respectively, and there is a round hole circular disk side, and the round hole is inside to be little bevel gear, and when using the spanner to rotate little bevel gear, four jack catchs are close to or withdraw from to the center simultaneously.
5. An electrically powered rotary clamp for a rock cutting machine according to claim 1, wherein: the motor is cylindrical, and the tail end of the motor is connected with a power supply through a lead.
6. An electrically powered rotary clamp for a rock cutting machine according to claim 1, wherein: the top bolt of three gyro wheel jack catch can be adjusted respectively according to the diameter of cylinder type rock sample to the gyro wheel centre frame, makes the terminal gyro wheel of jack catch and the contact of cylindricality rock sample, and rock bar perk causes the cutting plane to appear collapsing the limit phenomenon when avoiding the rock cutting, ensures that the rock sample does not take place centrifugation, firmly fixed in cutting process.
7. An electrically powered rotary clamp for a rock cutting machine according to claim 1, wherein: the guide rail is two parallel welded connection's linear rail, and the side of guide rail sets up the scale, and the scale is parallel with the side of cylindricality rock specimen, and is perpendicular with the circular blade of rock cutting machine, and the straightness tolerance that hangs down is less than 0.05 mm.
8. An electrically powered rotary clamp for a rock cutting machine according to claim 1, wherein: the linear bearing sliding block freely slides along the guide rail, and the positions of the roller center frame, the four-jaw self-centering chuck and the motor on the guide rail are adjusted according to the length of the rock rod.
9. An electrically powered rotary clamp for a rock cutting machine according to claim 1, wherein: the thickness of the four-jaw self-centering chuck is 100mm, the inner diameter of the ring is 100mm, the outer diameter of the ring is 300mm, the height of the circle center of the circular chuck is 200mm, the four-jaw self-centering chuck is made of nickel-chromium steel materials, and all parts of the four-jaw self-centering chuck are subjected to rust prevention treatment.
10. An electrically powered rotary clamp for a rock cutting machine according to claim 1, wherein: the inner diameter of a circular frame of the roller center frame is 280mm, the outer diameter of the circular frame is 300mm, the height of the circle center is 200mm, the manufacturing material is nickel-chromium steel, and all parts of the roller center frame are subjected to rust prevention treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021234952.7U CN212684360U (en) | 2020-06-29 | 2020-06-29 | Electric rotating clamp for rock cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021234952.7U CN212684360U (en) | 2020-06-29 | 2020-06-29 | Electric rotating clamp for rock cutting machine |
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| Publication Number | Publication Date |
|---|---|
| CN212684360U true CN212684360U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021234952.7U Expired - Fee Related CN212684360U (en) | 2020-06-29 | 2020-06-29 | Electric rotating clamp for rock cutting machine |
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| CN (1) | CN212684360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633848A (en) * | 2020-06-29 | 2020-09-08 | 天津大学 | Electric rotating clamp for rock cutting machine |
-
2020
- 2020-06-29 CN CN202021234952.7U patent/CN212684360U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633848A (en) * | 2020-06-29 | 2020-09-08 | 天津大学 | Electric rotating clamp for rock cutting machine |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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