CN114857191B - Brake pad device of petroleum drilling machine and using method thereof - Google Patents
Brake pad device of petroleum drilling machine and using method thereof Download PDFInfo
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- CN114857191B CN114857191B CN202210796754.7A CN202210796754A CN114857191B CN 114857191 B CN114857191 B CN 114857191B CN 202210796754 A CN202210796754 A CN 202210796754A CN 114857191 B CN114857191 B CN 114857191B
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- 238000005553 drilling Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000003208 petroleum Substances 0.000 title abstract description 8
- 239000000498 cooling water Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims description 60
- 238000006073 displacement reaction Methods 0.000 claims description 26
- 238000001816 cooling Methods 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims description 8
- 239000003086 colorant Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 5
- 239000003129 oil well Substances 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
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- 230000000694 effects Effects 0.000 description 10
- 239000011324 bead Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000003041 ligament Anatomy 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
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- 241001391944 Commicarpus scandens Species 0.000 description 1
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D65/84—Features relating to cooling for disc brakes
- F16D65/853—Features relating to cooling for disc brakes with closed cooling system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/026—Apparatus for indicating wear using electrical detection or indication means indicating different degrees of lining wear
- F16D66/027—Sensors therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D2065/784—Features relating to cooling the coolant not being in direct contact with the braking surface
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D2065/787—Pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D2065/788—Internal cooling channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D2069/005—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces having a layered structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to the technical field of brake devices of petroleum drilling machines, in particular to a brake pad device of a petroleum drilling machine and a using method of the brake pad device. The brake block device of the petroleum drilling machine comprises friction plates and a back plate which are bonded in a laminating manner, a first flow channel, a second flow channel and a third flow channel which are sequentially communicated are arranged in the back plate, the inlet end of the first flow channel is communicated with a water inlet, the outlet end of the third flow channel is communicated with a water outlet, and the first flow channel and the third flow channel are parallel to each other and are respectively and rotatably provided with a spiral band. According to the oil rig brake pad device, the circulating cooling water is injected into the back plate, so that the friction plate can be cooled in time in the braking process, the performance and the service life of the friction plate are improved, effective braking is guaranteed, production safety is guaranteed, the alarm devices are arranged in the back plate and the friction plate, an alarm can be given in time when the friction plate is worn out of a safety range, a worker is reminded to replace the friction plate, and normal production is guaranteed.
Description
Technical Field
The invention relates to the technical field of brake devices of petroleum drilling machines, in particular to a brake pad device of a petroleum drilling machine and a using method thereof.
Background
The brake pad of the prior large-scale drilling rod engineering equipment such as an oil field drilling machine, a workover rig and the like is generally composed of a back plate made of metal and a friction plate fixed on the back plate in an adhering way, when equipment such as an oil drilling machine and the like performs braking operation, the friction plate generates a large amount of heat due to friction, the friction plate is easily burnt out due to overhigh temperature, the performance and the service life of the friction plate are influenced, the friction coefficient of the brake pad is seriously influenced by the rise of the temperature, and production accidents such as braking failure and the like occur, in addition, the friction plate is easy to break and fall off after the thickness of the friction plate is reduced to a certain degree, meanwhile, the clearance between the brake pad and a brake disc is increased, the stroke of executing a braking task is increased, the braking sensitivity and the braking force of braking are reduced, therefore, an alarm device needs to be arranged on the brake pad to monitor the abrasion degree of the friction plate, and the alarm device gives an alarm when the abrasion of the friction plate reaches a certain degree, reminding the staff in time to change the friction disc, guaranteeing brake safety.
Disclosure of Invention
In order to solve at least one of the technical problems, the invention provides an oil drilling machine brake pad device, which comprises a friction plate and a back plate which are bonded together in an attaching manner, wherein a first flow channel, a second flow channel and a third flow channel which are sequentially communicated are arranged in the back plate, the inlet end of the first flow channel is communicated with a water inlet, the outlet end of the third flow channel is communicated with a water outlet, and the first flow channel and the third flow channel are parallel to each other and are respectively and rotatably provided with a spiral band inside.
Preferably, the spiral tie comprises a tie body, two ends of the tie body are fixedly connected with a rotating ring through a connecting rod, two ends of the first runner and the third runner are respectively provided with a mounting groove for rotatably fixing the rotating ring, and a plurality of first universal beads which are abutted against the mounting grooves are arranged on the outer side wall and the lower end face of the rotating ring at equal intervals on the circumference.
Preferably, first runner and third runner are damping formula structure, including alternative connection's thin footpath section and thick footpath section, thick footpath section direct intercommunication the second runner, the second runner is the one-way valve formula structure of Tesla, and cooling water can follow first runner warp the low resistance flow direction of second runner the third runner, the second runner is in the parallel is equipped with many, many in the backplate the internal diameter of second runner is followed the direction of flow of cooling water in first runner increases progressively.
Preferably, the backplate includes front bezel and back plate, the front bezel is connected the friction disc, brake actuating mechanism is connected to the back plate, the butt joint department mirror image of front bezel and back plate is equipped with the runner groove, works as the sealed butt joint of front bezel and back plate is fixed the back, the butt joint of runner groove forms first runner, second runner and third runner.
Preferably, the front plate faces one end of the friction plate, a bottom limiting plate and two side limiting plates are fixedly arranged at one end of the friction plate, the bottom limiting plate and the two side limiting plates are matched with the shape of the friction plate, a top limiting plate matched with the shape of the friction plate is detachably arranged on the side limiting plates, inserting strips are fixedly arranged on the side limiting plates along the length direction of the side limiting plates, and inserting grooves corresponding to the inserting strips are formed in the side walls of the friction plate.
Preferably, the friction disc towards backplate one side is equipped with the blind hole, the blind hole internal fixation is equipped with the nut, the center department of backplate is equipped with first through-hole, and alarm device's casing is fixed in the first through-hole, be equipped with the conducting block that resistance strip and be connected with the power in the casing, the first sealed slide cartridge of columniform slides and runs through the casing, one end with the casing is connected fixedly, the other end with nut threaded connection, be equipped with in the first sealed slide cartridge and extend to piston rod in the blind hole, the piston rod can contract under the pressure effect, drives the conducting block contact is followed the length direction of resistance strip slides, gathers through external control circuit the resistance signal of resistance strip opens the warning light of different colours.
Preferably, a first piston is arranged in the first sealed sliding barrel, one end of the first piston is connected with a piston rod which penetrates through the first sealed sliding barrel in a sliding mode, the other end of the first piston is connected and fixed with a first spring in the first sealed sliding barrel, a second universal bead is arranged at the free end of the piston rod, and the second universal bead abuts against the bottom of the blind hole.
Preferably, a second sealing sliding barrel perpendicular to the first sealing sliding barrel is arranged in the shell, the diameter of the first sealing sliding barrel is more than twice of that of the second sealing sliding barrel, the second sealing sliding barrel can amplify and convert the displacement of the first sealing sliding barrel along the thickness direction of the friction plate into the displacement along the length direction of the back plate, when the piston rod moves in a small range, a sliding block on the second sealing sliding barrel is driven to move greatly, and the sliding block is connected and fixed with the conductive block.
Preferably, the casing is including pegging graft fixed shell body and lid, be equipped with the confession on shell body and the lid respectively the second through-hole and the third through-hole that first sealed slide cartridge slided and passes, be equipped with the fixed slot on the lid, the fixed slot internal fixation is equipped with the power, shell body internal fixation is equipped with the sealed slide cartridge of second, be equipped with first annular flange on the lid, first annular flange pass through the screw with the backplate is connected fixedly, first sealed slide cartridge is kept away from the one end of piston rod is equipped with the annular flange of second, the annular flange of second pass through the screw with the lid is connected fixedly.
The invention provides a using method of a brake pad device of an oil drilling machine, which comprises the following steps:
step S100, assembling: bonding and fixing the friction plate and the back plate, connecting a water inlet on the back plate with a water inlet pipe, connecting a water outlet with a water outlet pipe, and connecting the water inlet pipe with a water pump;
step S200, brake cooling: when the brake is performed, cooling water is pumped into the first flow channel through the water pump, the cooling water flows out of the back plate through the first flow channel, the second flow channel and the third flow channel, spiral bands in the first flow channel and the third flow channel rotate under the impact of the cooling water, a plurality of second flow channels which are arranged in parallel and have Tesla one-way valve structures increase the flow area of the cooling water in the back plate, and efficient heat exchange is performed between the low-temperature back plate and the high-temperature friction plate to rapidly cool the friction plate;
step S300, wear alarm: when the friction plate is worn to the position of the blind hole, the piston rod of the first sealing sliding cylinder starts to move towards the direction close to the back plate under the action of external pressure, the second sealing sliding cylinder amplifies the displacement of the piston rod along the thickness direction of the friction plate and converts the displacement into the displacement along the length direction of the back plate, the sliding block on the second sealing sliding cylinder drives the conductive block to be in contact with the resistor strip and slide along the length direction of the resistor strip along with the movement of the piston rod, and the warning lamps with different colors are turned on by collecting resistance signals of the resistor strip through an external control circuit.
Compared with the prior art, the invention has the following beneficial technical effects:
1. when the oil-well rig brakes, cooling water is pumped into the first flow channel through a water pump, the cooling water flows out of the back plate through the first flow channel, the second flow channel and the third flow channel, and the low-temperature back plate exchanges heat with the high-temperature friction plate to cool the friction plate; when the cooling water flows, the spiral bands in the first flow channel and the third flow channel rotate along with the water flow, so that on one hand, the flow resistance of the cooling water can be increased, the retention time of the cooling water in the back plate is prolonged, the cooling water can fully perform heat exchange, on the other hand, the cooling water can closely cling to the side walls of the first flow channel and the third flow channel to perform rotary flow, and the cooling efficiency is improved;
2. the first flow channel and the third flow channel form a damping type structure through the small-diameter section and the large-diameter section which are alternately connected, the second flow channel is provided with a plurality of one-way valve Tesla structures, when cooling water flows in the first flow channel and the third flow channel, a pulse type flowing state is formed, the retention time of the cooling water is prolonged, and meanwhile, when the cooling water flows from the large-diameter section to the small-diameter section, the resistance is increased, so that the cooling water can be promoted to flow into the second flow channel; the Tesla one-way valve structure can increase the flow area of cooling water on one hand, and can ensure that the cooling water flows in one way smoothly on the other hand, and the plurality of second flow channels can balance the flow rate of the cooling water in the whole backboard and reduce the temperature difference at each position;
3. the back plate is formed by the front plate and the rear plate in a sealing splicing mode, so that on one hand, the spiral link is convenient to disassemble, assemble and maintain, on the other hand, each flow passage is convenient to clean and remove scale regularly, and the flow passages are prevented from being blocked;
4. the front plate is provided with a limit plate structure which is fixedly spliced with the friction plate, so that the connection strength of the friction plate and the front plate can be enhanced, and the friction plate can be effectively prevented from falling off;
5. the first sealing sliding cylinder of the alarm device has a wear warning function for reminding a worker to replace the friction plate in time, and has the function of connecting and fixing the back plate and the friction plate, so that the connection stability of the friction plate and the back plate is further improved, and the shell of the alarm device is fixed on the low-temperature back plate, so that the influence of heat generated by friction of the friction plate on the resistance strip, the conductive block and the power supply can be effectively avoided;
6. the displacement of the first sealing sliding barrel along the thickness direction of the friction plate is amplified and converted into the displacement along the length direction of the back plate through the second sealing sliding barrel, on one hand, the interference effect of heat on the resistance strip is weakened due to the increase of the displacement amplitude, on the other hand, the temperature of the back plate is far lower than that of the friction plate, and after the second sealing sliding barrel is additionally arranged, the resistance strip in the shell can be arranged at a position far away from the friction plate, so that the heat interference is further reduced, and the accuracy of resistance signal acquisition is improved;
in conclusion, the brake pad device for the petroleum drilling machine, provided by the invention, has the advantages that the circulating cooling water is injected into the back plate, the friction plate can be cooled in time in the braking process, the performance and the service life of the friction plate are improved, the effective braking is ensured, the production safety is ensured, the alarm devices are arranged in the back plate and the friction plate, the alarm can be given in time when the friction plate is worn out to a position out of a safety range, a worker is reminded to replace the friction plate, and the normal production is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a right side view of FIG. 1;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a top view of a helical ligament;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;
FIG. 7 is a schematic structural view of a front plate, a back plate and a friction plate;
FIG. 8 is a front view of the present invention;
FIG. 9 is a cross-sectional view taken along line C-C of FIG. 8;
FIG. 10 is a front view of the alarm device;
FIG. 11 is a cross-sectional view taken along line D-D of FIG. 10;
FIG. 12 is an exploded view of the alarm device;
FIG. 13 is an exploded view of the first seal cartridge;
FIG. 14 is an exploded view of the second seal cartridge;
fig. 15 is an exploded view of the alarm device housing.
Description of reference numerals:
1. friction plates, 11, plug grooves, 12, blind holes, 13, nuts, 2, a back plate, 21, a first flow passage, 22, a second flow passage, 23, a third flow passage, 24, a water inlet, 25, a water outlet, 26, a front plate, 261, a bottom limiting plate, 262, a side limiting plate, 2621, a plug strip, 263, a top limiting plate, 27, a back plate, 28, a first through hole, 3, a spiral tie, 31, a tie body, 32, a rotating ring, 321, a first universal bead, 33, a connecting rod, 4, an alarm device, 41, a housing, 411, a housing body, 4111, a second through hole, 412, a cover body, 4121, a third through hole, 4122, a fixing groove, 4123, a first annular flange, 42, a first seal sliding barrel, 421, a first piston, 422, a first liquid storage cavity, 423, a first sliding cavity, 424, a first spring, 425, a piston rod, 426, a second universal bead, 427, a seal cover, 4271, a second annular flange, 428. the oil inlet nozzle 43, the resistor strip 431, the support frame 44, the second sealing sliding cylinder 441, the second piston 442, the second liquid storage cavity 443, the second sliding cavity 444, the second spring 445, the sliding block 446, the flow guide ring 447, the annular groove 45, the conductive block 46 and the power supply.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings and examples:
it should be noted that the structures, proportions, sizes, and the like shown in the drawings are only for the purpose of understanding and reading the contents disclosed in the specification, and are not intended to limit the practical conditions of the present invention, and any modifications of the structures, changes of the proportion relationships, or adjustments of the sizes, which do not affect the efficacy and the achievable purpose of the present invention, should fall within the scope of the technical contents disclosed in the present invention.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are used for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms may be changed or adjusted without substantial change in the technical content.
Example 1
With reference to fig. 1 to 6, the present embodiment provides an oil-well rig brake pad device, including friction disc 1 and backplate 2 that the laminating bonds, backplate 2 is inside to be equipped with first runner 21, second runner 22 and the third runner 23 that communicate in proper order, the entry end intercommunication water inlet 24 of first runner 21, the exit end intercommunication delivery port 25 of third runner 23, first runner 21 and third runner 23 are parallel to each other and inside respectively can rotate and be equipped with spiral tie 3. In this embodiment, the main shapes of the friction plate 1 and the back plate 2 are not limited, and may be suitable according to different braking modes (such as disc brake and drum brake). As shown in fig. 2 and 4, the spiral ligament 3 means that a strip-shaped strip is twisted to form a spiral structure, and the spiral structure can automatically rotate under the impact of water flow. In the prior art, the spiral band technology is commonly used for descaling pipelines, but in the invention, the spiral band 3 mainly has the function of improving the cooling efficiency.
In one embodiment, as shown in fig. 5 and 6, the spiral tie 3 includes a tie body 31, two ends of the tie body 31 are fixedly connected to a rotating ring 32 through a connecting rod 33, two ends of the first flow passage 21 and the third flow passage 23 are respectively provided with an installation groove for rotatably fixing the rotating ring 32, and the outer side wall and the lower end surface of the rotating ring 32 are circumferentially provided with a plurality of first universal beads 321 which abut against the installation grooves at equal intervals. The spiral band 3 is arranged along the length direction of the first flow channel 21 and the third flow channel 23, and the first universal ball 321 is fixed in the mounting groove through the rotating ring 32, so that the rotating resistance of the rotating ring 32 can be reduced, and the rotating speed of the spiral band 3 along with the cooling water can be improved. The ligament body 31, the rotating ring 32 and the connecting rod 33 are preferably made of heat-conducting metal.
The working process of the embodiment is as follows: the water inlet 24 is connected with the water inlet pipe, the water outlet 25 is connected with the water outlet pipe, when the automobile is braked, cooling water is pumped into the first flow channel 21 through the water pump, the cooling water flows out of the back plate 2 through the first flow channel 21, the second flow channel 22 and the third flow channel 23, the low-temperature back plate 2 and the high-temperature friction plate 1 are subjected to heat exchange, and cooling of the friction plate 1 is achieved. When the cooling water flows, the spiral bands 3 in the first flow channel 21 and the third flow channel 23 rotate along with the water flow, so that on one hand, the flow resistance of the cooling water can be increased, the retention time of the cooling water in the back plate 2 is prolonged, the cooling water can fully perform heat exchange, on the other hand, the cooling water can closely adhere to the side walls of the first flow channel 21 and the third flow channel 23 to perform rotary flow, and the cooling efficiency is improved.
Example 2
With reference to fig. 1 to 7, the present embodiment provides an oil rig brake pad device, on the basis of embodiment 1, the structures and distribution modes of the first flow channel 21, the second flow channel 22 and the third flow channel 23 are optimized, the cooling effect of the back plate 2 on the friction plate 1 is further improved, the specific technical scheme is as follows,
as shown in fig. 4, the first flow channel 21 and the third flow channel 23 are both of a damping type structure, and include a small-diameter section and a large-diameter section that are alternately connected, the large-diameter section is directly communicated with the second flow channel 22, when the cooling water flows in the first flow channel 21 and the third flow channel 23, the influence of the damping type structure is prevented, a pulse type flow state is formed, the residence time of the cooling water in the first flow channel 21 and the third flow channel 23 is increased, and meanwhile, when the cooling water flows from the large-diameter section to the small-diameter section, the resistance is increased, and the cooling water can be promoted to flow into the second flow channel 22; the second flow channels 22 are of a tesla check valve type structure, on one hand, the flow area of cooling water can be increased, on the other hand, smooth one-way flow of the cooling water can be ensured, the cooling water can flow from the first flow channels 21 to the third flow channels 23 through the second flow channels 22 with low resistance, the second flow channels 22 are arranged in the back plate 2 in parallel, the number of the second flow channels 22 can be reasonably set according to the area of the back plate 2, so that the back plate 2 is covered to the maximum extent, and in this embodiment, four second flow channels 22 are arranged; the inner diameters of the second flow channels 22 are gradually increased along the flowing direction of the cooling water in the first flow channel 21, the pressure of the cooling water in the first flow channel 21 close to the water inlet 24 is the largest, so that the inner diameter of the second flow channel 22 is the smallest, the flowing resistance is the largest, the pressure of the cooling water in the first flow channel 21 far away from the water inlet 24 is the smallest, so that the inner diameter of the second flow channel 22 is the largest, the flowing resistance is the smallest, the flowing speed of the cooling water in the whole back plate 2 is balanced through the structure, and the temperature difference of all the positions is reduced.
In one embodiment, as shown in fig. 7, the back plate 2 includes a front plate 26 and a back plate 27, the front plate 26 is connected to the friction plate 1, the back plate 27 is connected to the brake driving mechanism, flow channel grooves are formed at the joint of the front plate 26 and the back plate 27 in a mirror image manner, and when the front plate 26 and the back plate 27 are sealed, butted and fixed, the flow channel grooves are butted to form the first flow channel 21, the second flow channel 22, and the third flow channel 23. The backboard 2 is formed by the front plate 26 and the rear plate 27 in a sealing and splicing mode, on one hand, the spiral band 3 is convenient to disassemble, assemble and overhaul, on the other hand, each flow channel is convenient to clean and remove scale regularly, and the flow channel is prevented from being blocked. When in sealing butt joint, sealing strips (not shown in the figure) are arranged at the positions close to the flow passages, so that the sealing effect is further improved.
In one embodiment, as shown in fig. 7, a bottom limiting plate 261 and two side limiting plates 262 corresponding to the shape of the friction plate 1 are fixedly disposed at one end of the front plate 26 facing the friction plate 1, a top limiting plate 263 corresponding to the shape of the friction plate 1 is detachably disposed at the other end of the front plate 26, an insertion strip 2621 is fixedly disposed on the side limiting plate 262 along the length direction thereof, and an insertion groove 11 corresponding to the insertion strip 2621 is disposed on the side wall of the friction plate 1. When the friction plate 1 is connected with the front plate 26, the top limit plate 263 on the front plate 26 is detached, an adhesive is coated on the butt joint of the front plate 26 and the friction plate 1, then the inserting groove 11 of the friction plate 1 is aligned with the inserting strip 2621, the friction plate 1 is inserted into the bottom limit plate 261, after the friction plate 1 and the top limit plate 263 are coated with the adhesive after the friction plate 1 and the friction plate 1 are bonded and fixed, the top limit plate 263 is installed and fixed on the front plate 26, and after the friction plate 1 and the front plate 26 are bonded and fixed, the connection and the fixation of the friction plate 1 and the front plate 26 are completed, so that the structure and the bonding mode can enhance the connection strength of the friction plate 1 and the front plate 26, and the friction plate 1 can be effectively prevented from falling off.
Example 3
With reference to fig. 1-15, this embodiment provides an oil-well rig brake pad device, on the basis of embodiment 1 or embodiment 2, has add alarm device 4, and alarm device 4 can light the warning light of different colours according to the difference of degree of wear when the thickness of friction disc 1 reduces to certain parameter range, reminds the staff in time to change the friction disc. The specific technical scheme is as follows,
as shown in fig. 7 and 9, the friction plate 1 is provided with a blind hole 12 on the side facing the back plate 2, a nut 13 is fixedly arranged in the blind hole 12, a first through hole 28 is arranged at the center of the back plate 2, a shell 41 of the alarm device 4 is fixed in the first through hole 28, as shown in fig. 11, a resistor strip 43 and a conductive block 45 connected to a power supply 46 are disposed in the housing 41, a first sealing sliding cylinder 42 having a cylindrical shape slidably penetrates the housing 41, one end of the first sealing sliding cylinder is fixedly connected to the housing 41, the other end of the first sealing sliding cylinder is connected to the nut 13 by a screw thread, a piston rod 425 extending into the blind hole 12 is arranged in the first seal sliding cylinder 42, the piston rod 425 can be contracted under the action of pressure to drive the conductive block 45 to contact and slide along the length direction of the resistor strip 43, the warning lamps with different colors are turned on by acquiring the resistance value signals of the resistor strips 43 through an external control circuit. Among the above-mentioned technical scheme, alarm device 4's first sealed slide cartridge 42 has wearing and tearing warning function on the one hand, reminds the staff in time to change friction disc 1, and on the other hand has the effect of connecting fixed backplate 2 and friction disc 1, has further improved the connection stability of friction disc 1 and backplate 2, and in addition, alarm device 4's casing 41 is fixed on microthermal backplate 2, can effectively avoid the heat that friction disc 1 friction produced to the influence of resistance strip 43, conducting block 45 and power 46.
As shown in fig. 11, in one specific embodiment, a first piston 421 is disposed in the first sliding seal cylinder 42, one end of the first piston 421 is connected to a piston rod 425 that slides through the first sliding seal cylinder 42, the other end is connected to a first spring 424 that is fixed in the first sliding seal cylinder 42, a free end of the piston rod 425 is provided with a second universal ball 426, and the second universal ball 426 abuts against the bottom of the blind hole 12. The bottom of second universal pearl 426 butt blind hole 12, the position of blind hole 12 bottom is the position that friction disc 1 got into the state that needs to be changed promptly, when friction disc 1 wearing and tearing to opening blind hole 12, second universal pearl 426 begins to bear external pressure, and promote piston rod 425 to contract in the first sealed slide cartridge 42 under the pressure effect, because second universal pearl 426 has the free rolling structure, frictional resistance is extremely low, therefore piston rod 425 only need bear along the thrust of thickness direction, its stability in use and life have been increased.
As shown in fig. 11 and 12, in one embodiment, a second seal slide cylinder 44 perpendicular to the first seal slide cylinder 42 is provided in the housing 41, the diameter of the first seal slide cylinder 42 is two or more times the diameter of the second seal slide cylinder 44, the second seal slide cylinder 44 can amplify and convert the displacement of the first seal slide cylinder 42 in the thickness direction of the friction plate 1 into the displacement in the length direction of the back plate 2, and when the piston rod 425 moves by a small amplitude, a slider 445 on the second seal slide cylinder 44 is driven to move by a large amplitude, and the slider 445 is connected and fixed to the conductive block 45. In the above technical solution, the displacement amplitude of the first sealing spool 42 along the thickness direction of the friction plate 1 is very small, and under the condition that the displacement amplitude is very small, the interference effect of the heat generated by friction of the friction plate 1 on the resistance strip 43 is enhanced, which affects the accuracy of the final resistance signal acquisition, the displacement is amplified and converted into the displacement along the length direction of the back plate 2 through the second sealing spool 44, on one hand, the increase of the displacement amplitude can weaken the interference effect of the heat on the resistance strip 43, on the other hand, the temperature of the back plate 2 is far lower than the temperature of the friction plate 1, after the second sealing spool 44 is added, the resistance strip 43 in the housing 41 can be arranged at a position far away from the friction plate 1, thereby further reducing the thermal interference and improving the accuracy of the resistance signal acquisition.
Any structure having a displacement amplification effect in the prior art is suitable for the present invention, and the following structure is preferably adopted in the present embodiment, and displacement amplification is realized by hydraulic volume conversion.
With reference to fig. 11 to 14, a first reservoir 422 provided with the first spring 424 and a first sliding chamber 423 provided with the piston rod 425 are respectively disposed at two sides of the first piston 421 in the first sliding sealing cylinder 42, one end of the first sliding sealing cylinder 42 away from the piston rod 425 is connected with a sealing cap 427 in a threaded manner, as shown in fig. 13, the sealing cap 427 has a raised threaded portion at the center, the inner side wall of the first sliding sealing cylinder 42 is provided with corresponding threads, the sealing cap 427 is provided with a screwing groove, and the sealing cap 427 and the first sliding sealing cylinder 42 can be conveniently connected in a threaded manner by inserting a screwing tool (such as a screwdriver or the like) into the screwing groove; the sealing cover 427 is provided with a one-way oil inlet 428 communicated with the first liquid storage cavity 422; a second piston 441 is arranged in the second sealed sliding barrel 44, a second fluid reservoir 442 and a second sliding cavity 443 are respectively arranged on two sides of the second piston 441, a second spring 444 connected with the second piston 441 is fixedly arranged in the second sliding cavity 443, a permanent magnet is arranged in the second piston 441, a sliding block 445 is arranged on the outer side wall of the second sealed sliding barrel 44, a magnet is arranged in the sliding block 445, the sliding block 445 can slide along with the second piston 441 under the action of magnetic force, the sliding block 445 is fixedly connected with the conductive block 45, a guide ring 446 is arranged at one end of the second sealed sliding barrel 44, the second sealed sliding barrel 44 and the guide ring 446 are respectively fixed on the inner wall of the housing 41, the guide ring 446 is hermetically sleeved on the outer side wall of the first sealed sliding barrel 42, and an annular groove 447 communicating the first fluid reservoir 422 and the second fluid reservoir 442 is arranged on the inner side wall, the resistor strip 43 is connected and fixed with the second sealing slide 44 through a bracket 431. A communicating hole is formed on the side wall of the first reservoir 422, when the first sealed sliding cylinder 42 is installed and fixed, the communicating hole is in sealed butt joint with the annular groove 447, in an initial state, the first reservoir 422 and the annular groove 447 of the guide ring 446 communicated with the first reservoir 422 are filled with pressure oil, the second spring 444 in the second sealed sliding cylinder 44 fixes the second piston 441 at a position close to the guide ring 446 by elastic force, when the piston rod 425 is pressed, the first piston 421 moves towards the first reservoir 422, the first spring 424 is compressed, the volume of the first reservoir 422 is reduced, the pressure oil enters the second reservoir 442 through the annular groove 447, the second spring 444 is compressed, the second piston 441 and the sliding block 445 magnetically connected with the second piston 441 move towards the second sliding cavity 443, the conductive block 45 connected with the sliding block 445 moves on the resistor strip 43, because the diameter of the first reservoir 422 is far larger than that of the second reservoir 442, therefore, the displacement width of the conductive piece 45 is greatly increased, and the resistance change value of the resistance strip 43 is increased.
In one embodiment, as shown in fig. 15, the housing 41 includes a housing body 411 and a cover 412 that are fixedly inserted, the housing body 411 and the cover 412 are respectively provided with a second through hole 4111 and a third through hole 4121 through which the first sliding seal barrel 42 slides, the cover 412 is provided with a fixing groove 4122, the power supply 46 is fixedly disposed in the fixing groove 4122, the housing body 411 is fixedly provided with the second sliding seal barrel 44, the cover 412 is provided with a first annular flange 4123, the first annular flange 4123 is fixedly connected to the backplate 2 by a screw, one end of the first sliding seal barrel 42 away from the piston rod 425 (i.e., the sealing cover 427) is provided with a second annular flange 4271, and the second annular flange 4271 is fixedly connected to the cover 412 by a screw.
Example 4
With reference to fig. 1 to 15, the embodiment provides a method for using a brake pad device of an oil drilling machine, which comprises the following steps:
step S100, assembling: bonding and fixing the friction plate 1 and the back plate 2, connecting a water inlet 24 on the back plate 2 with a water inlet pipe, connecting a water outlet 25 with a water outlet pipe, and connecting the water inlet pipe with a water pump;
step S200, brake cooling: when the automobile brake is used, cooling water is pumped into the first flow channel 21 through the water pump, the cooling water flows out of the back plate 2 through the first flow channel 21, the second flow channel 22 and the third flow channel 23, the spiral bands 3 in the first flow channel 21 and the third flow channel 23 rotate under the impact of the cooling water, the flow area of the cooling water in the back plate 2 is increased through the plurality of second flow channels 22 which are arranged in parallel and have a Tesla one-way valve structure, high-efficiency heat exchange is carried out between the low-temperature back plate 2 and the high-temperature friction plate 1, and rapid cooling is carried out on the friction plate 1;
step S300, wear alarm: when the friction plate 1 is worn to the position of the blind hole 12, the piston rod 425 of the first sealing sliding cylinder 42 starts to move towards the direction close to the back plate 2 under the action of external pressure, the second sealing sliding cylinder 44 amplifies the displacement of the piston rod 425 along the thickness direction of the friction plate 1 and converts the displacement into the displacement along the length direction of the back plate 2, the sliding block 445 on the second sealing sliding cylinder 44 drives the conductive block 45 to be in contact with the resistance strip 43 and slide along the length direction of the resistance strip along with the movement of the piston rod 425, and the external control circuit collects the resistance value signals of the resistance strip 43 to turn on warning lights with different colors.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
Claims (8)
1. A brake block device of an oil rig comprises friction plates (1) and a back plate (2) which are bonded in an attaching mode, and is characterized in that a first flow channel (21), a second flow channel (22) and a third flow channel (23) which are sequentially communicated are arranged inside the back plate (2), the inlet end of the first flow channel (21) is communicated with a water inlet (24), the outlet end of the third flow channel (23) is communicated with a water outlet (25), the first flow channel (21) and the third flow channel (23) are parallel to each other, and spiral ties (3) are respectively and rotatably arranged inside the first flow channel and the third flow channel;
the friction plate (1) faces one side of the back plate (2) and is provided with a blind hole (12), a nut (13) is fixedly arranged in the blind hole (12), a first through hole (28) is formed in the center of the back plate (2), a shell (41) of the alarm device (4) is fixed in the first through hole (28), a resistance strip (43) and a conductive block (45) connected with a power supply (46) are arranged in the shell (41), a first cylindrical sealing sliding barrel (42) penetrates through the shell (41) in a sliding mode, one end of the first sealing sliding barrel is fixedly connected with the shell (41), the other end of the first sealing sliding barrel is in threaded connection with the nut (13), a piston rod (425) extending into the blind hole (12) is arranged in the first sealing sliding barrel (42), the piston rod (425) can contract under the action of pressure to drive the conductive block (45) to contact and slide along the length direction of the resistance strip (43), the external control circuit is used for collecting resistance signals of the resistor strips (43) to turn on the warning lamps with different colors;
a first piston (421) is arranged in the first sealing sliding barrel (42), one end of the first piston (421) is connected with a piston rod (425) which penetrates through the first sealing sliding barrel (42) in a sliding mode, and the other end of the first piston is connected with a first spring (424) which is fixed in the first sealing sliding barrel (42);
the shell (41) is internally provided with a second sealing sliding barrel (44) perpendicular to the first sealing sliding barrel (42), the diameter of the first sealing sliding barrel (42) is more than twice of that of the second sealing sliding barrel (44), the second sealing sliding barrel (44) can amplify and convert the displacement of the first sealing sliding barrel (42) along the thickness direction of the friction plate (1) into the displacement along the length direction of the back plate (2), when the piston rod (425) moves in a small amplitude, a sliding block (445) on the second sealing sliding barrel (44) is driven to move in a large amplitude, and the sliding block (445) is connected and fixed with the conductive block (45).
2. The oil-well rig brake pad device according to claim 1, wherein the spiral tie (3) comprises a tie body (31), two ends of the tie body (31) are fixedly connected with a rotating ring (32) through a connecting rod (33), two ends of the first flow passage (21) and the third flow passage (23) are respectively provided with a mounting groove for rotatably fixing the rotating ring (32), and the outer side wall and the lower end surface of the rotating ring (32) are circumferentially provided with a plurality of first universal balls (321) which abut against the mounting grooves at equal intervals.
3. The brake pad device for the oil drilling rig as recited in claim 1, wherein the first flow channel (21) and the third flow channel (23) are of a damping type structure and comprise a small diameter section and a large diameter section which are alternately connected, the large diameter section is directly communicated with the second flow channel (22), the second flow channel (22) is of a Tesla one-way valve type structure, cooling water can flow from the first flow channel (21) to the third flow channel (23) through the second flow channel (22) under low resistance, the second flow channel (22) is parallelly arranged in the back plate (2), and the inner diameter of the second flow channel (22) is increased along the flow direction of the cooling water in the first flow channel (21).
4. The brake pad device for the oil drilling rig as recited in claim 3, wherein the back plate (2) comprises a front plate (26) and a back plate (27), the front plate (26) is connected with the friction plate (1), the back plate (27) is connected with a brake driving mechanism, a runner groove is arranged at the joint of the front plate (26) and the back plate (27) in a mirror image manner, and when the front plate (26) and the back plate (27) are in sealed butt joint and fixed, the runner groove is in butt joint to form the first runner (21), the second runner (22) and the third runner (23).
5. The oil-well rig brake pad device according to claim 4, characterized in that one end of the front plate (26) facing the friction plate (1) is fixedly provided with a bottom limit plate (261) and two side limit plates (262) which are adaptive to the shape of the friction plate (1), a top limit plate (263) which is adaptive to the shape of the friction plate (1) is detachably arranged, the side limit plates (262) are fixedly provided with plug-in strips (2621) along the length direction thereof, and the side walls of the friction plate (1) are provided with plug-in grooves (11) corresponding to the plug-in strips (2621).
6. The oil rig brake pad device of claim 5, wherein the free end of the piston rod (425) is provided with a second universal ball (426), the second universal ball (426) abutting against the bottom of the blind hole (12).
7. The oil rig brake pad device according to claim 6, wherein the housing (41) comprises a housing body (411) and a cover body (412) which are fixedly inserted, a second through hole (4111) and a third through hole (4121) which are used for the first sealing sliding cylinder (42) to pass through in a sliding way are respectively arranged on the shell body (411) and the cover body (412), a fixing groove (4122) is arranged on the cover body (412), the power supply (46) is fixedly arranged in the fixing groove (4122), the second sealing sliding cylinder (44) is fixedly arranged in the shell body (411), the cover body (412) is provided with a first annular flange (4123), the first annular flange (4123) is fixedly connected with the back plate (2) through screws, the end of the first sealing sliding barrel (42) far away from the piston rod (425) is provided with a second annular flange (4271), the second annular flange (4271) is connected and fixed with the cover body (412) through screws.
8. The use method of the brake pad device of the oil drilling machine as claimed in claim 1, characterized by comprising the following steps:
step S100, assembling: bonding and fixing the friction plate (1) and the back plate (2), connecting a water inlet (24) on the back plate (2) with a water inlet pipe, connecting a water outlet (25) with a water outlet pipe, and connecting the water inlet pipe with a water pump;
step S200, brake cooling: when the brake is performed, cooling water is pumped into the first flow channel (21) through the water pump, the cooling water flows out of the back plate (2) through the first flow channel (21), the second flow channel (22) and the third flow channel (23), the spiral bands (3) in the first flow channel (21) and the third flow channel (23) rotate under the impact of the cooling water, the flow area of the cooling water in the back plate (2) is increased through the second flow channels (22) which are arranged in parallel and have a Tesla one-way valve structure, efficient heat exchange is performed between the low-temperature back plate (2) and the high-temperature friction plate (1), and the friction plate (1) is cooled rapidly;
step S300, abrasion alarming: when the friction plate (1) is worn to the position of the blind hole (12), the piston rod (425) of the first sealing sliding cylinder (42) starts to move towards the direction close to the back plate (2) under the action of external pressure, the second sealing sliding cylinder (44) amplifies the displacement of the piston rod (425) along the thickness direction of the friction plate (1) and converts the displacement into the displacement along the length direction of the back plate (2), the sliding block (445) on the second sealing sliding cylinder (44) drives the conductive block (45) to be in contact with the resistance strip (43) and slide along the length direction of the resistance strip along with the movement of the piston rod (425), and the warning lamps with different colors are turned on by acquiring resistance signals of the resistance strip (43) through an external control circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210796754.7A CN114857191B (en) | 2022-07-08 | 2022-07-08 | Brake pad device of petroleum drilling machine and using method thereof |
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| CN202210796754.7A CN114857191B (en) | 2022-07-08 | 2022-07-08 | Brake pad device of petroleum drilling machine and using method thereof |
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| CN114857191B true CN114857191B (en) | 2022-09-09 |
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| CN116164062B (en) * | 2023-04-25 | 2023-07-07 | 东营博世机电科技有限公司 | Petroleum drilling machine brake block and manufacturing method thereof |
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