CN213770266U - Auger base for sand mixing truck - Google Patents
Auger base for sand mixing truck Download PDFInfo
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- CN213770266U CN213770266U CN202022612969.8U CN202022612969U CN213770266U CN 213770266 U CN213770266 U CN 213770266U CN 202022612969 U CN202022612969 U CN 202022612969U CN 213770266 U CN213770266 U CN 213770266U
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- auger
- shaft
- bolt
- bottom plate
- bearing
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- 239000004576 sand Substances 0.000 title claims abstract description 75
- 238000002156 mixing Methods 0.000 title description 8
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 239000004519 grease Substances 0.000 claims abstract description 34
- 210000002445 nipple Anatomy 0.000 claims abstract description 22
- 238000012856 packing Methods 0.000 claims description 66
- 238000003825 pressing Methods 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 1
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 35
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 35
- 241001330002 Bambuseae Species 0.000 abstract description 35
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 35
- 239000011425 bamboo Substances 0.000 abstract description 35
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 75
- 239000006004 Quartz sand Substances 0.000 description 10
- 238000010276 construction Methods 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 7
- 210000004907 gland Anatomy 0.000 description 5
- 230000009545 invasion Effects 0.000 description 5
- 229920002472 Starch Polymers 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 210000005056 cell body Anatomy 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model discloses an auger base for fracturing blender truck, its characterized in that includes: bearing, grease nipple, clamp plate, tetrafluoro sealing ring, notes fat nipple, first bolt, second bolt, third bolt, fourth bolt, auger bottom shaft, auger bottom plate inner chamber, auger bottom plate, defeated sand section of thick bamboo, auger shaft and auger blade, the epaxial auger blade that is provided with of auger, the auger shaft sets up the inside at defeated sand section of thick bamboo, auger bottom shaft is connected with the auger shaft, defeated sand section of thick bamboo is connected with the auger bottom plate, the auger bottom plate with sealed space auger inner chamber has been formed between the defeated sand section of thick bamboo, auger bottom plate outside is provided with notes fat nipple, the bottom of auger bottom plate is provided with the clamp plate, the bearing passes the clamp plate and is connected with the auger bottom shaft, the position that the bearing passed with the clamp plate mutually is provided with the tetrafluoro sealing ring, be provided with the grease nipple on the bearing.
Description
Technical Field
The utility model belongs to shale atmospheric pressure splits construction field relates to fracturing blender truck equipment, specifically is an auger base for fracturing blender truck.
Background
The fracturing blender truck is the key equipment of shale gas fracturing construction, and the fracturing blender truck is supplied with liquid and proppant constantly, and the normal operation of whole job site is directly influenced to the good or bad of fracturing blender truck. The spiral sand conveyer is a core component of the sand mixing truck, and has the main task of conveying proppants such as quartz sand, ceramsite and the like to a mixing tank of the sand mixing truck through a sand conveyer auger for stirring, and metering through a sensor, wherein the construction quality is influenced due to untimely or inaccurate supplement of the proppants. Along with the development of the shale gas sand fracturing technology, the diameter of used quartz sand particles is increasingly thin, the construction sand concentration is increasingly high, the fine sand easily invades the packing auger lower support bearing through gaps, poor bearing lubrication and abrasion are caused, the high sand concentration increases the lower bearing load, the packing auger lower bearing is frequently damaged and loses efficacy in the using process, the normal use of the sand mixing truck is seriously affected, and therefore the reliability technical research on the sand control structure of the packing auger base of the sand mixing truck is necessary to be carried out.
Patent number 2014200698849. X, patent name be a fracturing blender truck defeated sand ware auger support bearing sealing device and disclose a fracturing blender truck defeated sand ware auger support bearing sealing device, include: the end cover, support cover, bolt, sealing filler, gland, filter screen, support cover, supporting seat, end axle, sealing washer, grease nipple. The supporting seat of the packing auger supporting bearing sealing device of the sand mixer truck is of a stepped cylinder structure, 4-8 threaded blind holes are formed in the periphery of the left end, blind holes for assembling bearings are formed in the right end, an end cover, sealing filler and a gland are installed at the left end of the supporting seat, an inner ring of the end cover is connected with the gland through bolts to compress the sealing filler, the left end of a supporting sleeve is connected with the middle of the end cover through the bolts, and the right end of the supporting sleeve is connected with an end shaft through the bolts. 4-8 threaded blind holes are uniformly distributed on two end faces of a support sleeve in the packing device of the auger support bearing, a through hole perpendicular to the axis is arranged at the left end of the support sleeve, and filter screens are arranged at the upper opening and the lower opening of the through hole.
The device bearing is equipped with through-hole and filter screen outward and can not prevent effectively that outside sand grain from getting into the bearing, and the packing is sealed can not satisfy shale gas platform long time, big sand volume, superfine quartz sand construction, can not be used for shale gas platform construction.
Patent number 201822117144.1 is named as a starch horizontal auger self-compensating packing sealing device
Discloses a self-compensating packing sealing device of a starch horizontal auger. The conventional packaging equipment sealing device is often subjected to powder leakage to cause the locking of a bearing, and the rotating friction material at the sealing part is gelatinized and polluted to influence the product quality. The utility model discloses a constitution includes: auger flange dish, auger, the auger flange dish be connected through a set of screw and auger cell body, the auger flange dish with the auger cell body between install sealed the pad, auger axial step department install auger seal sheath and adopt interference fit, the outside cover of auger seal sheath have sealed packing, sealed packing right-hand member and gland's bottom surface laminating, gland on the plane install a set of spring, the inside bolt that has worn of spring, the bolt pass through the screw thread with the auger flange dish connect, the utility model is used for the horizontal auger self compensating packing sealing device of starch. The sealing device can not be used for the packing auger base of the sand mixing truck.
SUMMERY OF THE UTILITY MODEL
To above-mentioned prior art in the quartz sand particle diameter more and more thin, the construction sand is concentrated more and more high, and fine sand very easily invades auger under bracing bearing through the gap, causes lubricated harmfully of bearing and wearing and tearing, and high sand is concentrated has increased down the bearing load again, causes the auger under the bearing frequently to damage the inefficacy in the use, seriously influences the not enough of the normal use of mulling car, the utility model provides an auger base for mulling car.
A auger base for fracturing blender truck, its characterized in that includes: bearing, grease nipple, clamp plate, tetrafluoro sealing ring, notes fat nipple, first bolt, second bolt, third bolt, fourth bolt, auger bottom shaft, auger bottom plate inner chamber, auger bottom plate, defeated sand section of thick bamboo, auger shaft and auger blade, the epaxial auger blade that is provided with of auger, the auger shaft sets up the inside at defeated sand section of thick bamboo, auger bottom shaft is connected with the auger shaft, defeated sand section of thick bamboo is connected with the auger bottom plate, the auger bottom plate with sealed space auger inner chamber has been formed between the defeated sand section of thick bamboo, auger bottom plate outside is provided with notes fat nipple, the bottom of auger bottom plate is provided with the clamp plate, the bearing passes the clamp plate and is connected with the auger bottom shaft, the position that the bearing passed with the clamp plate mutually is provided with the tetrafluoro sealing ring, be provided with the grease nipple on the bearing.
And high-pressure sealing grease for preventing gravel impurities from entering is arranged in the inner cavity of the packing auger.
The bearing is connected with the bottom shaft of the packing auger through a first bolt.
The clamp plate passes through the second bolt setting in the bottom of auger bottom plate.
The sand conveying cylinder is connected with the packing auger bottom plate through a third bolt.
The packing auger bottom shaft is connected with the packing auger shaft through a fourth bolt.
The working principle is as follows:
when the packing auger base device is assembled, a large amount of high-pressure sealing grease is injected into the inner cavity of the packing auger bottom plate to fill the inner cavity, the packing auger support bearing is assembled, and after the device operates normally, grease is injected on time through the grease nozzle according to daily maintenance requirements, so that the device can operate effectively.
The utility model has the advantages that:
1. the utility model discloses stop that the quartz sand gets into the bearing through the clearance between auger bottom shaft and the auger bottom plate and cause unusual wearing and tearing.
2. The utility model discloses airtight completely between auger bottom plate and bearing and the defeated sand section of thick bamboo body, inside the unable invasion system of outside sand grain, reduced bearing and auger bottom shaft and got wearing and tearing, improved the life-span of auger base and bearing.
3. The utility model discloses a 4 airtight spaces that communicate each other that auger bottom plate inner chamber was equipped with, the sealed fat of filling high pressure is used for blockking the invasion of quartz sand in the sand hopper, has stopped quartz sand and has got into the bearing through the clearance between auger bottom shaft and the auger bottom plate and cause unusual wearing and tearing, has improved bearing life.
4. The utility model discloses airtight completely between auger bottom plate and bearing and the defeated sand section of thick bamboo body, inside the unable invasion system of outside sand grain, reduced bearing and auger bottom shaft and got wearing and tearing, improved the life-span of auger base and bearing.
5. The utility model provides a fracturing blender truck auger support bearing advance sand and lead to lubricated bad and frequent problem of damaging, guaranteed the normal fracturing construction of shale gas platform, reduced maintenance work load, reduced maintenance personal intensity of labour, practiced thrift cost of maintenance.
Reference numerals
1. The device comprises a bearing, 2, a grease nozzle, 3, a pressing plate, 4, a tetrafluoro sealing ring, 5, a grease injection nozzle, 6, a first bolt, 601, a second bolt, 602, a third bolt, 603, a fourth bolt, 7, an auger bottom shaft, 8, an inner cavity of an auger bottom plate, 9, an auger bottom plate, 10, a sand conveying cylinder, 11, an auger shaft, 12 and an auger blade.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
example 1:
a auger base for fracturing blender truck, its characterized in that includes: bearing 1, grease nipple 2, clamp plate 3, tetrafluoro sealing ring 4, notes fat mouth 5, first bolt 6, second bolt 601, third bolt 602, fourth bolt 603, auger bottom shaft 7, auger bottom plate inner chamber 8, auger bottom plate 9, defeated sand section of thick bamboo 10, auger shaft 11 and auger blade 12, be provided with on the auger shaft 11 auger blade 12, auger shaft 11 sets up the inside at defeated sand section of thick bamboo 10, auger bottom shaft 7 is connected with auger shaft 11, defeated sand section of thick bamboo 10 is connected with auger bottom plate 9, auger bottom plate 9 with sealed space auger inner chamber has been formed between defeated sand section of thick bamboo 10, auger bottom plate 9 outside is provided with notes fat mouth 5, auger bottom plate 9's bottom is provided with clamp plate 3, bearing 1 passes clamp plate 3 and is connected with auger bottom shaft 7, the position that bearing 1 passed with clamp plate 3 mutually is provided with tetrafluoro sealing ring 4, and a grease nipple 2 is arranged on the bearing 1.
Example 2:
a auger base for fracturing blender truck, its characterized in that includes: bearing 1, grease nipple 2, clamp plate 3, tetrafluoro sealing ring 4, notes fat mouth 5, first bolt 6, second bolt 601, third bolt 602, fourth bolt 603, auger bottom shaft 7, auger bottom plate inner chamber 8, auger bottom plate 9, defeated sand section of thick bamboo 10, auger shaft 11 and auger blade 12, be provided with on the auger shaft 11 auger blade 12, auger shaft 11 sets up the inside at defeated sand section of thick bamboo 10, auger bottom shaft 7 is connected with auger shaft 11, defeated sand section of thick bamboo 10 is connected with auger bottom plate 9, auger bottom plate 9 with sealed space auger inner chamber has been formed between defeated sand section of thick bamboo 10, auger bottom plate 9 outside is provided with notes fat mouth 5, auger bottom plate 9's bottom is provided with clamp plate 3, bearing 1 passes clamp plate 3 and is connected with auger bottom shaft 7, the position that bearing 1 passed with clamp plate 3 mutually is provided with tetrafluoro sealing ring 4, and a grease nipple 2 is arranged on the bearing 1.
And high-pressure sealing grease for preventing gravel impurities from entering is arranged in the inner cavity of the packing auger.
The pressing plate 3 is arranged at the bottom of the packing auger bottom plate 9 through a second bolt 601.
The sand conveying cylinder 10 is connected with the packing auger bottom plate 9 through a third bolt 602.
The packing auger bottom shaft 7 is connected with the packing auger shaft 11 through a fourth bolt 603.
The utility model discloses stop that the quartz sand gets into the bearing through the clearance between auger bottom shaft and the auger bottom plate and cause unusual wearing and tearing.
Example 3:
a auger base for fracturing blender truck, its characterized in that includes: bearing 1, grease nipple 2, clamp plate 3, tetrafluoro sealing ring 4, notes fat mouth 5, first bolt 6, second bolt 601, third bolt 602, fourth bolt 603, auger bottom shaft 7, auger bottom plate inner chamber 8, auger bottom plate 9, defeated sand section of thick bamboo 10, auger shaft 11 and auger blade 12, be provided with on the auger shaft 11 auger blade 12, auger shaft 11 sets up the inside at defeated sand section of thick bamboo 10, auger bottom shaft 7 is connected with auger shaft 11, defeated sand section of thick bamboo 10 is connected with auger bottom plate 9, auger bottom plate 9 with sealed space auger inner chamber has been formed between defeated sand section of thick bamboo 10, auger bottom plate 9 outside is provided with notes fat mouth 5, auger bottom plate 9's bottom is provided with clamp plate 3, bearing 1 passes clamp plate 3 and is connected with auger bottom shaft 7, the position that bearing 1 passed with clamp plate 3 mutually is provided with tetrafluoro sealing ring 4, and a grease nipple 2 is arranged on the bearing 1.
And high-pressure sealing grease for preventing gravel impurities from entering is arranged in the inner cavity of the packing auger.
The bearing 1 is connected with a packing auger bottom shaft 7 through a first bolt 6.
The sand conveying cylinder 10 is connected with the packing auger bottom plate 9 through a third bolt 602.
The packing auger bottom shaft 7 is connected with the packing auger shaft 11 through a fourth bolt 603.
The utility model discloses airtight completely between auger bottom plate and bearing and the defeated sand section of thick bamboo body, inside the unable invasion system of outside sand grain, reduced bearing and auger bottom shaft and got wearing and tearing, improved the life-span of auger base and bearing.
Example 4:
a auger base for fracturing blender truck, its characterized in that includes: bearing 1, grease nipple 2, clamp plate 3, tetrafluoro sealing ring 4, notes fat mouth 5, first bolt 6, second bolt 601, third bolt 602, fourth bolt 603, auger bottom shaft 7, auger bottom plate inner chamber 8, auger bottom plate 9, defeated sand section of thick bamboo 10, auger shaft 11 and auger blade 12, be provided with on the auger shaft 11 auger blade 12, auger shaft 11 sets up the inside at defeated sand section of thick bamboo 10, auger bottom shaft 7 is connected with auger shaft 11, defeated sand section of thick bamboo 10 is connected with auger bottom plate 9, auger bottom plate 9 with sealed space auger inner chamber has been formed between defeated sand section of thick bamboo 10, auger bottom plate 9 outside is provided with notes fat mouth 5, auger bottom plate 9's bottom is provided with clamp plate 3, bearing 1 passes clamp plate 3 and is connected with auger bottom shaft 7, the position that bearing 1 passed with clamp plate 3 mutually is provided with tetrafluoro sealing ring 4, and a grease nipple 2 is arranged on the bearing 1.
And high-pressure sealing grease for preventing gravel impurities from entering is arranged in the inner cavity of the packing auger.
The bearing 1 is connected with a packing auger bottom shaft 7 through a first bolt 6.
The pressing plate 3 is arranged at the bottom of the packing auger bottom plate 9 through a second bolt 601.
The packing auger bottom shaft 7 is connected with the packing auger shaft 11 through a fourth bolt 603.
The utility model discloses a 4 airtight spaces that communicate each other that auger bottom plate inner chamber was equipped with, the sealed fat of filling high pressure is used for blockking the invasion of quartz sand in the sand hopper, has stopped quartz sand and has got into the bearing through the clearance between auger bottom shaft and the auger bottom plate and cause unusual wearing and tearing, has improved bearing life.
Example 5:
a auger base for fracturing blender truck, its characterized in that includes: bearing 1, grease nipple 2, clamp plate 3, tetrafluoro sealing ring 4, notes fat mouth 5, first bolt 6, second bolt 601, third bolt 602, fourth bolt 603, auger bottom shaft 7, auger bottom plate inner chamber 8, auger bottom plate 9, defeated sand section of thick bamboo 10, auger shaft 11 and auger blade 12, be provided with on the auger shaft 11 auger blade 12, auger shaft 11 sets up the inside at defeated sand section of thick bamboo 10, auger bottom shaft 7 is connected with auger shaft 11, defeated sand section of thick bamboo 10 is connected with auger bottom plate 9, auger bottom plate 9 with sealed space auger inner chamber has been formed between defeated sand section of thick bamboo 10, auger bottom plate 9 outside is provided with notes fat mouth 5, auger bottom plate 9's bottom is provided with clamp plate 3, bearing 1 passes clamp plate 3 and is connected with auger bottom shaft 7, the position that bearing 1 passed with clamp plate 3 mutually is provided with tetrafluoro sealing ring 4, and a grease nipple 2 is arranged on the bearing 1.
And high-pressure sealing grease for preventing gravel impurities from entering is arranged in the inner cavity of the packing auger.
The bearing 1 is connected with a packing auger bottom shaft 7 through a first bolt 6.
The pressing plate 3 is arranged at the bottom of the packing auger bottom plate 9 through a second bolt 601.
The sand conveying cylinder 10 is connected with the packing auger bottom plate 9 through a third bolt 602.
Example 6:
a auger base for fracturing blender truck, its characterized in that includes: bearing 1, grease nipple 2, clamp plate 3, tetrafluoro sealing ring 4, notes fat mouth 5, first bolt 6, second bolt 601, third bolt 602, fourth bolt 603, auger bottom shaft 7, auger bottom plate inner chamber 8, auger bottom plate 9, defeated sand section of thick bamboo 10, auger shaft 11 and auger blade 12, be provided with on the auger shaft 11 auger blade 12, auger shaft 11 sets up the inside at defeated sand section of thick bamboo 10, auger bottom shaft 7 is connected with auger shaft 11, defeated sand section of thick bamboo 10 is connected with auger bottom plate 9, auger bottom plate 9 with sealed space auger inner chamber has been formed between defeated sand section of thick bamboo 10, auger bottom plate 9 outside is provided with notes fat mouth 5, auger bottom plate 9's bottom is provided with clamp plate 3, bearing 1 passes clamp plate 3 and is connected with auger bottom shaft 7, the position that bearing 1 passed with clamp plate 3 mutually is provided with tetrafluoro sealing ring 4, and a grease nipple 2 is arranged on the bearing 1.
And high-pressure sealing grease for preventing gravel impurities from entering is arranged in the inner cavity of the packing auger.
The bearing 1 is connected with a packing auger bottom shaft 7 through a first bolt 6.
The pressing plate 3 is arranged at the bottom of the packing auger bottom plate 9 through a second bolt 601.
The sand conveying cylinder 10 is connected with the packing auger bottom plate 9 through a third bolt 602.
The packing auger bottom shaft 7 is connected with the packing auger shaft 11 through a fourth bolt 603.
The utility model provides a fracturing blender truck auger support bearing advance sand and lead to lubricated bad and frequent problem of damaging, guaranteed the normal fracturing construction of shale gas platform, reduced maintenance work load, reduced maintenance personal intensity of labour, practiced thrift cost of maintenance.
Claims (6)
1. A auger base for fracturing blender truck, its characterized in that includes: the grease filling machine comprises a bearing (1), a grease nozzle (2), a pressing plate (3), a polytetrafluoroethylene sealing ring (4), a grease filling nozzle (5), a first bolt (6), a second bolt (601), a third bolt (602), a fourth bolt (603), a packing auger bottom shaft (7), a packing auger bottom plate inner cavity (8), a packing auger bottom plate (9), a sand conveying cylinder (10), a packing auger shaft (11) and a packing auger blade (12), wherein the packing auger blade (12) is arranged on the packing auger shaft (11), the packing auger shaft (11) is arranged inside the sand conveying cylinder (10), the packing auger bottom shaft (7) is connected with the packing auger shaft (11), the sand conveying cylinder (10) is connected with the packing auger bottom plate (9), a closed space packing auger inner cavity is formed between the packing auger bottom plate (9) and the sand conveying cylinder (10), the grease filling nozzle (5) is arranged outside the packing auger bottom plate (9), and the pressing plate (3) is arranged at the bottom of the packing auger bottom plate (9), bearing (1) pass clamp plate (3) and auger bottom shaft (7) are connected, the position that bearing (1) and clamp plate (3) passed mutually is provided with tetrafluoro sealing ring (4), be provided with grease nipple (2) on bearing (1).
2. The auger base for a fracturing blender truck according to claim 1, wherein: and high-pressure sealing grease for preventing gravel impurities from entering is arranged in the inner cavity of the packing auger.
3. The auger base for a fracturing blender truck according to claim 1, wherein: the bearing (1) is connected with the packing auger bottom shaft (7) through a first bolt (6).
4. The auger base for a fracturing blender truck according to claim 1, wherein: the pressing plate (3) is arranged at the bottom of the packing auger bottom plate (9) through a second bolt (601).
5. The auger base for a fracturing blender truck according to claim 1, wherein: the sand conveying cylinder (10) is connected with the packing auger bottom plate (9) through a third bolt (602).
6. The auger base for a fracturing blender truck according to claim 1, wherein: the packing auger bottom shaft (7) is connected with the packing auger shaft (11) through a fourth bolt (603).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022612969.8U CN213770266U (en) | 2020-11-12 | 2020-11-12 | Auger base for sand mixing truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022612969.8U CN213770266U (en) | 2020-11-12 | 2020-11-12 | Auger base for sand mixing truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213770266U true CN213770266U (en) | 2021-07-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022612969.8U Active CN213770266U (en) | 2020-11-12 | 2020-11-12 | Auger base for sand mixing truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213770266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113844840A (en) * | 2021-08-17 | 2021-12-28 | 宁夏天地奔牛实业集团有限公司 | Maintenance-free self-lubricating chain wheel shaft group |
-
2020
- 2020-11-12 CN CN202022612969.8U patent/CN213770266U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113844840A (en) * | 2021-08-17 | 2021-12-28 | 宁夏天地奔牛实业集团有限公司 | Maintenance-free self-lubricating chain wheel shaft group |
| CN113844840B (en) * | 2021-08-17 | 2023-08-01 | 宁夏天地奔牛实业集团有限公司 | Maintenance-free self-lubricating sprocket shaft group |
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