CN114459938A - Spraying system and abrasion test bed - Google Patents
Spraying system and abrasion test bed Download PDFInfo
- Publication number
- CN114459938A CN114459938A CN202210075395.6A CN202210075395A CN114459938A CN 114459938 A CN114459938 A CN 114459938A CN 202210075395 A CN202210075395 A CN 202210075395A CN 114459938 A CN114459938 A CN 114459938A
- Authority
- CN
- China
- Prior art keywords
- abrasion
- seat
- spraying
- rod
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005299 abrasion Methods 0.000 title claims abstract description 190
- 238000005507 spraying Methods 0.000 title claims abstract description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 239000011435 rock Substances 0.000 claims abstract description 55
- 230000001681 protective effect Effects 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 30
- 239000007921 spray Substances 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 17
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000003068 static effect Effects 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 31
- 238000004088 simulation Methods 0.000 abstract description 6
- 238000005457 optimization Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000036346 tooth eruption Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/58—Investigating machinability by cutting tools; Investigating the cutting ability of tools
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to a spraying system and an abrasion test bed, wherein the spraying system comprises a spraying protective cover and a water tank, the top and the bottom of the spraying protective cover are respectively provided with a water inlet and a water outlet, and the water tank provides spraying water for the spraying protective cover; the abrasion test bed comprises a frame, a linear reciprocating mechanism, a guide seat, a guide rod, an abrasion rock sample seat, an abrasion rod, an abrasion rotation power system, a force sensor and a spraying system, wherein the guide seat slides forwards and backwards under the driving of the linear reciprocating mechanism by taking the guide rod as a guide, the abrasion rock sample seat is pushed to lean against the abrasion rod and provide abrasion positive pressure, the abrasion rod is driven by the abrasion rotation power system to keep a friction sliding state with the abrasion rock sample, and the front end and the rear end of a spraying protective cover are connected with the abrasion rock sample seat and the abrasion rotation power system and are sealed. The invention can not only realize the simulation of the abrasion life of the cutting tooth, but also provide reference for the optimization of the motion parameters in actual cutting, and the test bed has compact structure and less investment.
Description
Technical Field
The invention relates to an abrasion test bench for researching the abrasion problem in the rock cutting process and a spraying system suitable for the test bench.
Background
A prominent problem when cutting hard materials such as rock is abrasiveness, where the cutting pick wears out quickly under a large cutting force. The existing standard abrasion test bed uses a needle-shaped thin rod to slide in a friction mode relative to a rock sample under a small positive pressure, parameters such as the positive pressure, the relative sliding speed and the like are customized according to a unified standard, the abrasiveness of the rock is judged according to the abrasion degree of a needle point and is manually graded and evaluated, and then the abrasion grade of the rock is obtained, the abrasion life simulation of a cutting tooth is not involved, and the spray cooling simulation function is not provided.
Disclosure of Invention
The invention aims to provide a spraying system and an abrasion test bench, which not only can enable an abrasion test of a cutting tooth to be closer to a real working condition, realize simulation of the abrasion service life of the cutting tooth, but also can provide reference for optimizing motion parameters in actual cutting by aiming at reducing the abrasion of the cutting tooth.
The main technical scheme of the invention is as follows:
a spraying system comprises a spraying protective cover and a water tank, wherein the spraying protective cover is of a cylindrical structure which is communicated from front to back, a front sealing groove is arranged on the radial inner side edge of the opening at the front end of the spraying protective cover, a front sealing structure is arranged in the front sealing groove, the rear end opening of the spraying protective cover is provided with an annular inner spigot, the annular end surface of the annular inner spigot is provided with a rear sealing groove, a rear sealing structure is arranged in the rear sealing groove, the top and the bottom of the spraying protective cover are respectively provided with a water inlet and a water outlet, the water inlet is close to the front end of the spraying protective cover, the side wall of the water tank is provided with a water pump, the water suction port of the water pump is immersed in the water tank, the water outlet of the water pump is connected with the water inlet of the spraying protective cover through a pipeline, the water outlet of the spraying protective cover is connected with a water return port of the water tank through a pipeline, and a filter element is arranged at the upper stream of the water outlet in the spraying protective cover.
The left side cover wall and/or the right side cover wall of the spraying protection cover are/is provided with an observation window, and the observation window is positioned below the water inlet of the spraying protection cover in the front-back direction.
The lower side cover wall of the spraying protection cover is arranged in a front-high rear-low inclined shape, and a water outlet of the spraying protection cover is communicated with the lowest part of the lower side cover wall.
The upper side cover wall of the spraying protection cover is covered with a strip-shaped cover plate which extends leftwards and rightwards, a strip-shaped water tank which extends leftwards and rightwards is arranged on the bottom surface of the strip-shaped cover plate, a plurality of threaded holes which are communicated from top to bottom are formed in the strip-shaped cover plate, the lower end of each threaded hole is communicated with the strip-shaped water tank, an adjusting screw is screwed into each threaded hole, a plurality of vertical through holes are formed in the upper side cover wall of the spraying protection cover at intervals in the left and right direction, the upper ends of the vertical through holes are communicated with the strip-shaped water tank, a pipe joint is further arranged on the strip-shaped cover plate, the lower end of the pipe joint is communicated with the water tank, and the pipe joint serves as a water inlet of the spraying protection cover.
An abrasion test bed comprises a frame, a linear reciprocating mechanism, a guide seat, a guide rod, an abrasion rock sample seat, an abrasion rod, an abrasion rotation power system, a force sensor and a spraying system, wherein the front end and the rear end of the guide rod are installed on the frame, the guide seat is sleeved on the guide rod and is in front-and-rear sliding connection with the guide rod, the linear reciprocating mechanism and the abrasion rotation power system are installed on the frame and are arranged at intervals from top to bottom, the movable end of the linear reciprocating mechanism and the abrasion rock sample seat are both connected with the guide seat and are located on the rear side of the guide seat, one end of the abrasion rod is installed on the power output end of the abrasion rotation power system, the other end of the abrasion rod is suspended towards the abrasion rock sample seat, the force sensor is installed between the movable ends of the guide seat and the linear reciprocating mechanism, the power output end of the abrasion rotation power system is embedded into an annular inner stop of a spraying protective cover, and the rear sealing structure forms end face sealing between the spraying protective cover and the power output end of the abrasion rotation power system, and the water tank is arranged on the frame.
The preferred master cylinder that adopts of straight reciprocating motion mechanism, on the frame was installed to the cylinder of master cylinder, the overhanging end of the jar pole of master cylinder was connected with the hydro-cylinder connecting seat, and the hydro-cylinder connecting seat warp force sensor connects the rear end of guide holder, still install pump station, self-cooling oil tank and operating valve on the frame, the operating valve is sent into with the fluid in the self-cooling oil tank to the pump station, and the two chambeies of master cylinder are connected respectively to the working oil circuit of operating valve, and the oil return route of operating valve receives the self-cooling oil tank.
The abrasion test stand may further include an abrasion connection mechanism connected between the guide base and the abrasive rock sample base, with or without a torque sensor being mounted between the abrasion connection mechanism and the rear end of the guide base.
The abrasion connecting mechanism can comprise a square connecting plate and a connecting arm which are connected and fixed in tandem, the connecting arm is in a hollow rod shape and is connected with a guide seat or a torque sensor, and the rear end of the connecting arm is fixed on the abrasion rock sample seat.
The abrasion rotary power system can comprise a sealing seat, an abrasion motor and a rotating shaft, wherein the sealing seat and the abrasion motor are arranged on the frame, the rotating shaft is rotatably supported in the sealing seat through a bearing, an output shaft of the abrasion motor is directly and coaxially connected with one end of the rotating shaft or is coaxially connected with the rotating shaft through a speed reducer in a transmission mode, and one end of an abrasion rod is arranged on the end face of the other end of the rotating shaft.
Preferably, the end face of the other end of the rotating shaft is provided with a plurality of abrasion rod seat mounting positions, wherein at least two abrasion rod seat mounting positions have different distances from the axis of the rotating shaft, the abrasion rod is mounted on the abrasion rod seat, and the abrasion rod seat is detachably mounted on the abrasion rod seat mounting positions.
The speed reducer adopts a primary planetary speed reducer.
The abrasion test stand preferably further comprises a stroke sensor, a stationary part of the stroke sensor being mounted on the frame, and a moving part of the stroke sensor being mounted on the guide base
The invention has the beneficial effects that:
because the abrasion rotary power system is arranged, the abrasion rod can stably and fixedly rotate around the axis of the rotating shaft under the driving of the abrasion rotary power system, and meanwhile, the linear reciprocating mechanism can provide constant abrasion positive pressure for an abrasion test, so that the end face of the overhanging end of the abrasion rod and the end face of the abrasion rock sample can keep a friction sliding state, the abrasion test can be closer to the actual abrasion working condition of the cutting tooth, and the experimental research on the abrasion service life of the cutting tooth can be carried out. By changing a plurality of working condition parameters such as the material of the abrasion rock sample, the hardness of the abrasion rock sample, the abrasion positive pressure, the rotating speed of an abrasion rotating power system and the like, the abrasion life curve under different combination conditions can be obtained, so that a group of optimized motion parameters with less abrasion can be selected for the application of the on-site cutting tooth, the cutting capability is ensured, the abrasion loss of the cutting tooth is reduced, and the economic mining of the mining machine is realized.
Because the end face of the other end of the rotating shaft can be provided with a plurality of abrasion rod seat mounting positions, and the abrasion rods and the abrasion rod seats are mounted on the abrasion rod seat mounting positions with different distances from the axis of the rotating shaft, abrasion tests with different radiuses and different rotating speeds can be realized, and different rotation linear speeds of the abrasion rods can be obtained under different radiuses even if the rotating speed of the rotating shaft is the same, so that more cutting condition combinations can be obtained, and the research on abrasion of cutting teeth in the cutting process can be more sufficient. By increasing the radius, the erosion path can also be lengthened, which is beneficial to reduce trial random errors.
Because the spraying system is arranged, the spraying protective cover, the abrasion rotary power system, the abrasion rock sample and the abrasion rock sample seat enclose a closed space, and spray water is guided to the end face of the abrasion rock sample and the abrasion rod in friction sliding from the water inlet at the top of the spraying protective cover to cool and reduce dust and finally flows back to the water tank for recycling, so that the simulation of the situation during spray cooling during real cutting is realized, conditions and convenience are provided for researching the influence of the spray cooling on the abrasion effect of the cutting tooth, and the abrasion test is closer to the real working condition.
The linear reciprocating mechanism and the abrasion rotating power system are arranged at intervals up and down, so that the test bed has the advantages of very compact structure, less occupied area and low cost.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 2;
FIG. 4 is a detailed composition indicating view of the present invention;
FIG. 5 is a schematic illustration of another embodiment of the abrasive rotary power system;
FIG. 6 is a cross-sectional view C-C of FIG. 5;
FIG. 7 is a longitudinal cross-sectional view of one embodiment of the spray shield;
FIG. 8 is a front view of the spray shield;
FIG. 9 is a schematic view showing the attachment of the abrasive tip holder.
Description of the drawings: 1. a frame; 17. a water tank; 2. a linear reciprocating mechanism; 21. a master cylinder; 22. an oil cylinder connecting seat; 23. a guide seat; 24. a guide bar; 25. a force sensor; 27. a travel sensor; 3. an abrasive attachment mechanism; 31. a square connecting plate; 32. a connecting arm; 33. abrading a rock sample holder; 5. a main power system; 51. a pump station; 52. a self-cooling oil tank; 53. a pilot valve; 6. an abrasive rotary power system; 61. an abrasive seat; 62. an abrasive motor; 63. a rotating shaft; 631. positioning a groove; 632. a threaded hole; 64. a bearing; 65. a sealing seat; 66. an abrasive tip holder; 67. an abrasive rod; 68. a speed reducer; 7. spraying a protective cover; 712. a front seal groove; 72. a rear sealing structure; 73. a front sealing structure; 74. a filter element; 75. a water inlet; 76. a water outlet; 78. an observation window; 79. an adjusting screw; 8. a water pump; 02. the rock sample is abraded.
Detailed Description
As shown in fig. 4-8, the present invention discloses a spraying system, which comprises a spraying protection cover 7 and a water tank 17, wherein the spraying protection cover is a cylindrical structure which is through from front to back, a front sealing groove 712 is arranged on the radial inner side edge of the front end opening of the spraying protection cover, and a front sealing structure 73 is arranged in the front sealing groove and is used for forming sealing with an abrasive rock sample seat 33 and an abrasive rock sample 02 in the abrasive rock sample seat during an abrasion test. The rear end opening of the spraying protection cover is provided with an annular inner spigot structure, a rear sealing groove is formed in the annular end face of the annular inner spigot, and a rear sealing structure 72 is arranged in the rear sealing groove. The top and the bottom of the spraying protective cover are respectively provided with a water inlet 75 and a water outlet 76, and the water inlet is close to the front end of the spraying protective cover. The side wall of the water tank is provided with a water pump 8, the water suction port of the water pump is immersed in the water tank, the water outlet of the water pump is connected with the water inlet of the spraying protective cover through a pipeline, and the water outlet of the spraying protective cover is connected with the water return port of the water tank through a pipeline. And a filter element 74 is arranged at the upstream of the water outlet in the spraying protective cover. The water is gathered at the bottom of the spraying protective cover, and finally flows out after being filtered from the water outlet 76 and flows back to the water tank, so that the recycling of the spraying water is realized. The water return port of the water tank may be provided at the top of the water tank. The water tank, the water pump, the filter element, the spraying protective cover, the related pipelines, the joints, the seals and the like form the main part of the spraying system.
The left side cover wall and/or the right side cover wall that spray the protection casing are equipped with observation window 78, on the fore-and-aft direction the observation window is located the below of the water inlet that sprays the protection casing to the condition that rivers got into is conveniently observed.
The front end opening of the spraying protective cover is preferably rectangular so as to adapt to the rectangular section characteristics of the abraded rock sample seat and the abraded rock sample 02 under most conditions. Four radial inside edges about the open upper and lower of front end that spray the protection casing all are equipped with bilateral seal groove on, and four bilateral seal grooves meet in order end to end and constitute preceding seal groove.
The lower side cover wall of the spraying protection cover is preferably arranged in a front-high back-low inclined manner, and the water outlet of the spraying protection cover is communicated with the lowest position of the lower side cover wall so as to be beneficial to gathering and discharging of spraying water in the spraying protection cover.
The upper side cover wall of the spraying protection cover is covered and installed with a strip-shaped cover plate which extends leftwards and rightwards, a strip-shaped water tank which extends leftwards and rightwards is arranged on the bottom surface of the strip-shaped cover plate, a plurality of threaded holes which are communicated up and down are arranged in the strip-shaped cover plate, the lower ends of the threaded holes are communicated with the strip-shaped water tank, and an adjusting screw 79 is screwed into each threaded hole. A plurality of vertical through holes are arranged on the upper side cover wall of the spraying protection cover at intervals in the left-right direction, and the upper ends of the vertical through holes are communicated with the strip-shaped water tank. The strip-shaped cover plate is also provided with a pipe joint, the lower end of the pipe joint is communicated with the water tank, and the pipe joint serves as a water inlet of the spraying protective cover. The spray water enters the strip-shaped water tank from the water inlet 75 and then enters the spray protection cover through the vertical through holes in a dispersing manner. The deeper the screwing-in adjusting screw is, the narrower the water through-flow path in the strip-shaped water tank is, so that the adjustment of the flow velocity of spraying water entering the spraying protective cover can be realized by adjusting the screwing-in depth of the adjusting screw.
The invention also discloses an abrasion test bench, which comprises a frame 1, a linear reciprocating mechanism 2, a guide seat 23, a guide rod 24, an abrasion rock sample seat 33, an abrasion rod 67, an abrasion rotary power system 6, a force sensor 25 and the spraying system, as shown in figures 1-9. The frame is a mounting base structure for other components on the abrasion test bed. The front end and the rear end of the guide rod are arranged on the frame, and the guide seat is sleeved on the guide rod and is connected with the guide rod in a front-back sliding mode. The linear reciprocating mechanism and the abrasion rotating power system are both arranged on the frame and are arranged at intervals up and down. The movable end of the linear reciprocating mechanism and the abrasive rock sample seat are both connected with the guide seat and are positioned at the rear side of the guide seat, the movable end of the linear reciprocating mechanism drives the guide seat to slide back and forth when moving back and forth, and accordingly, the abrasive rock sample seat also horizontally moves back and forth along the same direction.
One end of the abrasion rod is arranged on the power output end of the abrasion rotary power system, and the other end of the abrasion rod is suspended towards the abrasion rock sample seat. The abrasive rock sample holder can be moved closer to or farther from the abrasive rod in the front-rear direction by the linear reciprocating mechanism. During the abrasion test, the abrasion rod makes circular motion around the axis of the rotating shaft under the driving of the abrasion rotary power system, meanwhile, the linear reciprocating mechanism provides constant abrasion positive pressure for the abrasion test, and the end face of the overhanging end of the abrasion rod and the end face of the abrasion rock sample 02 on the abrasion rock sample seat keep a friction sliding state under the abrasion positive pressure and are closer to the abrasion working condition of the cutting pick during real cutting. The moving speed of the abrasion rod relative to the abrasion rock sample or the abrasion positive pressure can be conveniently adjusted according to a test scheme, for example, the moving speed can be adjusted to various cutting line speeds, the abrasion positive pressure can be as large as the positive pressure corresponding to the cutting force for crushing high-hardness rock, so that the abrasion test is closer to the actual abrasion working condition of the cutting pick, specific data judgment or effective suggestion can be given to the abrasion service life of the cutting pick through the abrasion test, and the optimal cutting pick motion parameter can be determined. In this embodiment, the abrasion rotational power system is located behind the abrasion rock sample holder, the rear end of the abrasion rod is mounted on the power output end of the abrasion rotational power system, the front end of the abrasion rod points to the rear end of the abrasion rock sample holder, and the abrasion rod and the rear end face of the abrasion rock sample are kept in friction during abrasion test. The abrasive rod may take many forms of construction, such as a cylindrical construction, a conical construction, etc., the latter being used to simulate a cutting pick tip that may be closer to true operating conditions.
The abrasion test bed can conveniently carry out the research on the abrasion performance of cutting teeth for mining hard materials on site, and the linear reciprocating mechanism, the abrasion rotation power system and the abrasion rock sample seat are arranged at intervals up and down, so that the test bed is very compact in structure, small in occupied area and low in cost.
The force sensor is arranged between the guide seat and the movable end of the linear reciprocating mechanism, and the fluctuation range of the abrasion positive pressure can be detected by the force sensor.
During the abrasion test, the front end opening of the spraying protective cover is sleeved outside the abrasion rock sample seat, and the front sealing structure forms radial sealing between the spraying protective cover and the abrasion rock sample and between the spraying protective cover and the abrasion rock sample seat. The power output end of the abrasion rotary power system is embedded into the annular inner spigot of the spraying protection cover, and the rear sealing structure forms end face sealing between the spraying protection cover and a related structure of the power output end of the abrasion rotary power system, so that the spraying protection cover and the abrasion rotary power system, the abrasion rock sample and the abrasion rock sample seat form a closed space. The water tank is mounted on the frame. Spray water enters the closed space from the water inlet 75, and can be used for spraying, cooling and dust settling at the contact position of the abrasion rod and the abrasion rock sample so as to simulate the situation of spray cooling during real cutting and further study the influence of spray cooling on the abrasion effect of the cutting tooth.
The linear reciprocating mechanism preferably adopts a main oil cylinder 21, a cylinder barrel of the main oil cylinder is installed on the frame, an extending end of a cylinder rod of the main oil cylinder is connected with an oil cylinder connecting seat 22, and the oil cylinder connecting seat is connected with the rear end of the guide seat through the force sensor. An overflow valve or a balancing valve should be provided on the corresponding oil return line of the master cylinder when the abrasion positive pressure is applied to realize the simulation of the constant abrasion positive pressure.
In order to provide power for the main oil cylinder, a pump station 51, a self-cooling oil tank 52 and an operating valve 53 are further installed on the frame, the pump station comprises a motor and a gear pump, and the operating valve is used for reversing. The pump station absorbs oil from the cooling oil tank and sends the pressure oil into the operating valve, the working oil circuit of the operating valve is respectively connected with the two cavities of the main oil cylinder, and the oil return circuit of the operating valve is connected with the self-cooling oil tank. By controlling the control valve, pressure oil enters different chambers of the main oil cylinder, thereby controlling the extension or retraction of the main oil cylinder rod, and further enabling the abrasion rock sample seat to be close to or far away from the abrasion rod. The pump station, the self-cooling oil tank and the control valve form the main part of a main power system 5 for providing power for the main oil cylinder.
The guide rods are parallel to each other, and the guide seat is connected with each guide rod in a front-back sliding mode. The guide rods are preferably arranged in four directions, namely, up, down, left and right, and are symmetrical up and down and left and right relative to the axis of the main oil cylinder, so that the guide seat can keep a better stress state when moving.
The abrasive test bench may further comprise an abrasive connection means 3 connected between the guide shoe and the abrasive rock sample holder. In this embodiment, the front end of the abrasion connecting mechanism is connected to the rear end of the guide seat, and the rear end of the abrasion connecting mechanism is connected to the abrasion rock sample seat. The abrasion connection mechanism may comprise a square connecting plate 31 and a connecting arm 32 which are connected and fixed in tandem, the connecting arm being hollow rod-shaped, the square connecting plate being fixed on the guide base, the rear end of the connecting arm being fixed on the abrasion rock sample base.
Preferably, a torque sensor is connected between the abrasive connection and the rear end of the guide shoe, i.e. in this embodiment the torque sensor is mounted between the square web and the guide shoe, and accordingly the mounting of the torque sensor can be accommodated by shortening the connecting arm. The torque sensor can be used for detecting the change of the friction force between the abrasion rod and the abrasion rock sample in the abrasion test.
The abrasion rotary power system provides a fixed-shaft rotary power for the abrasion rod. The abrasive rotary power system may comprise a seal holder 65, an abrasive motor 62 and a swivel shaft 63, the seal holder and the abrasive motor being mounted on the frame, in this embodiment the seal holder and the abrasive motor being mounted on the frame by means of an abrasive holder 61. The rotatable shaft is rotatably supported in the seal housing by a bearing 64, and the output shaft of the abrasion motor is coaxially connected to one end (rear end in this embodiment) of the rotatable shaft directly or through a speed reducer 68. One end of the abrasion rod is attached to the end surface of the other end of the rotating shaft (i.e., the power output end of the abrasion rotational power system, the leading end in this embodiment). Seals are also provided at the junctions between the associated structural members at the power take-off end of the abrasive rotary power system to prevent spray water from entering the abrasive rotary power system from the power take-off end.
Preferably, a plurality of abrasion rod seat mounting positions are arranged on the other end face of the rotating shaft, wherein at least two abrasion rod seat mounting positions have different distances to the axis of the rotating shaft. The abrasive tip may be mounted on an abrasive tip holder 66, which is removably mounted on a certain abrasive tip holder mounting location. When the abrasion rod base is arranged on the abrasion rod base mounting positions which are far away from the axis of the rotating shaft, abrasion motion tests on the circumferences corresponding to different radiuses can be realized.
As shown in FIG. 9, in this embodiment, a positioning groove 631 is formed in the end surface of the other end of the rotary shaft in a radial direction, a plurality of threaded holes 632 are formed in both sides of the positioning groove at intervals along the extending direction of the positioning groove, and the abrasion rod holder 66 can be positioned by using the positioning groove and the end surface of the rotary shaft and can be attached to various positions on the end surface of the rotary shaft by using a combination of screws and different threaded holes.
The speed reducer is preferably a primary planetary speed reducer, so that the abrasion rotation power system can output larger torque.
The cutting and abrasion test stand also preferably comprises a stroke sensor 27, the stationary part of which is mounted on the frame and the moving part of which is mounted on the guide base, the moving part moving back and forth relative to the stationary part following the guide base. The stroke sensor can be used for sending a signal when the milling depth reaches a set value so as to timely control the rotation of the abrasion rotary power system to stop. In this embodiment, the stationary part of the stroke sensor is an annular magnetic induction coil, and the moving part of the stroke sensor is a magnetic rod extending horizontally back and forth.
The terms front and rear as used herein refer to the left and right, respectively, from the perspective of fig. 1.
Claims (10)
1. A spray system, characterized by: including spraying protection casing and water tank, spray the tubular structure that the protection casing link up around being, the radial inboard edge that the front end of spraying the protection casing was uncovered department is equipped with preceding seal groove, is equipped with preceding seal structure in the preceding seal groove, the rear end that sprays the protection casing uncovered department sets up tang in the annular, is equipped with back seal groove on the annular terminal surface of tang in the annular, is equipped with back seal structure in the back seal groove, and the top and the bottom that spray the protection casing are equipped with water inlet and delivery port respectively, and the water inlet is close to the front end that sprays the protection casing, install the water pump on the lateral wall of water tank, the water sucking mouth of water pump soaks in the water tank, the delivery port of water pump is through the tube coupling the water inlet of spraying the protection casing, the delivery port that sprays the protection casing is through the return water mouth of tube coupling water tank, the upper reaches that spray delivery port in the protection casing are equipped with the filter core.
2. The spray system of claim 1, wherein: the left side cover wall and/or the right side cover wall of the spraying protection cover are/is provided with an observation window, and the observation window is positioned below the water inlet of the spraying protection cover in the front-back direction.
3. The spray system of claim 1, wherein: the lower side cover wall of the spraying protection cover is arranged in a front-high rear-low inclined shape, and a water outlet of the spraying protection cover is communicated with the lowest part of the lower side cover wall.
4. The spray system of claim 1, 2 or 3, wherein: the upper side cover wall of the spraying protection cover is covered with a strip-shaped cover plate which extends leftwards and rightwards, a strip-shaped water tank which extends leftwards and rightwards is arranged on the bottom surface of the strip-shaped cover plate, a plurality of threaded holes which are communicated from top to bottom are formed in the strip-shaped cover plate, the lower end of each threaded hole is communicated with the strip-shaped water tank, an adjusting screw is screwed into each threaded hole, a plurality of vertical through holes are formed in the upper side cover wall of the spraying protection cover at intervals in the left and right direction, the upper ends of the vertical through holes are communicated with the strip-shaped water tank, a pipe joint is further arranged on the strip-shaped cover plate, the lower end of the pipe joint is communicated with the water tank, and the pipe joint serves as a water inlet of the spraying protection cover.
5. An abrasion test stand characterized by: comprises a frame, a linear reciprocating mechanism, a guide seat, a guide rod, an abrasive rock sample seat, an abrasive rod, an abrasive rotary power system, a force sensor and the spraying system as claimed in claim 1, 2, 3 or 4, wherein the front end and the rear end of the guide rod are arranged on the frame, the guide seat is sleeved on the guide rod and is in front-and-rear sliding connection with the guide rod, the linear reciprocating mechanism and the abrasive rotary power system are arranged on the frame and are arranged at intervals up and down, the movable end of the linear reciprocating mechanism and the abrasive rock sample seat are both connected with the guide seat and are both positioned at the rear side of the guide seat, one end of the abrasive rod is arranged on the power output end of the abrasive rotary power system, the other end of the abrasive rod is suspended towards the abrasive rock sample seat, the force sensor is arranged between the guide seat and the movable end of the linear reciprocating mechanism, the power output end of the abrasive rotary power system is embedded into an annular inner spigot of the spraying protective cover, and the rear sealing structure forms end face sealing between the spraying protective cover and the power output end of the abrasion rotation power system, and the water tank is arranged on the frame.
6. An abrasion test stand according to claim 5, wherein: the straight reciprocating motion mechanism adopts the master cylinder, and on the frame was installed to the cylinder of master cylinder, the overhanging end of the jar pole of master cylinder was connected with the hydro-cylinder connecting seat, and the hydro-cylinder connecting seat warp force sensor connects the rear end of guide holder, still install pump station, self-cooling oil tank and operating valve on the frame, the operating valve is sent into with the fluid in the self-cooling oil tank to the pump station, and the two chambeies of master cylinder are connected respectively to the working oil circuit of operating valve, and the oil return route of operating valve receives the self-cooling oil tank.
7. An abrasion test stand according to claim 6, wherein: the device also comprises an abrasion connecting mechanism, wherein the abrasion connecting mechanism is connected between the guide seat and the abrasion rock sample seat, and a torque sensor is arranged or not arranged between the abrasion connecting mechanism and the rear end of the guide seat.
8. An abrasion test stand according to claim 5, 6 or 7, wherein: the abrasion rotary power system comprises a sealing seat, an abrasion motor and a rotating shaft, wherein the sealing seat and the abrasion motor are arranged on the frame, the rotating shaft is rotatably supported in the sealing seat through a bearing, an output shaft of the abrasion motor is directly and coaxially connected with one end of the rotating shaft or is coaxially connected through a speed reducer in a transmission mode, and one end of the abrasion rod is arranged on the end face of the other end of the rotating shaft.
9. An abrasion test stand according to claim 8, wherein: the end face of the other end of the rotating shaft is provided with a plurality of abrasion rod seat mounting positions, wherein at least two abrasion rod seat mounting positions have different distances from the axis of the rotating shaft, the abrasion rod is mounted on the abrasion rod seat, and the abrasion rod seat is detachably mounted on the abrasion rod seat mounting positions.
10. An abrasion test stand according to claim 9, wherein: the travel mechanism further comprises a travel sensor, a static part of the travel sensor is installed on the frame, and a moving part of the travel sensor is installed on the guide seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210075395.6A CN114459938A (en) | 2022-01-22 | 2022-01-22 | Spraying system and abrasion test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210075395.6A CN114459938A (en) | 2022-01-22 | 2022-01-22 | Spraying system and abrasion test bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114459938A true CN114459938A (en) | 2022-05-10 |
Family
ID=81410887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210075395.6A Pending CN114459938A (en) | 2022-01-22 | 2022-01-22 | Spraying system and abrasion test bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114459938A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936981A (en) * | 1974-05-06 | 1976-02-10 | White Velton C | Dental model trimmer |
| CN101021466A (en) * | 2007-03-05 | 2007-08-22 | 中国地质大学（武汉） | Multifunction friction wear testing machine |
| JP3143798U (en) * | 2008-05-26 | 2008-08-07 | 中島 浩 | Dental plaster shaping device |
| CN103883310A (en) * | 2014-04-15 | 2014-06-25 | 吉林大学 | Experiment table for simulating drilling system |
| CN104198311A (en) * | 2014-09-25 | 2014-12-10 | 东北石油大学 | Torsional impact rock-breaking experiment device and experiment method |
| CN209439962U (en) * | 2018-11-16 | 2019-09-27 | 金中控股有限公司 | A kind of stainless-steel pan polissoir |
| CN110646307A (en) * | 2018-06-26 | 2020-01-03 | 中国石油化工股份有限公司 | Rock abrasiveness determination test device |
| CN211992388U (en) * | 2020-04-02 | 2020-11-24 | 江苏华太电力仪表有限公司 | Polishing equipment for welded joint |
| CN215115698U (en) * | 2021-03-30 | 2021-12-10 | 中航勘察设计研究院有限公司 | Sand cobble stratum abrasion characteristic testing arrangement |
-
2022
- 2022-01-22 CN CN202210075395.6A patent/CN114459938A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936981A (en) * | 1974-05-06 | 1976-02-10 | White Velton C | Dental model trimmer |
| CN101021466A (en) * | 2007-03-05 | 2007-08-22 | 中国地质大学（武汉） | Multifunction friction wear testing machine |
| JP3143798U (en) * | 2008-05-26 | 2008-08-07 | 中島 浩 | Dental plaster shaping device |
| CN103883310A (en) * | 2014-04-15 | 2014-06-25 | 吉林大学 | Experiment table for simulating drilling system |
| CN104198311A (en) * | 2014-09-25 | 2014-12-10 | 东北石油大学 | Torsional impact rock-breaking experiment device and experiment method |
| CN110646307A (en) * | 2018-06-26 | 2020-01-03 | 中国石油化工股份有限公司 | Rock abrasiveness determination test device |
| CN209439962U (en) * | 2018-11-16 | 2019-09-27 | 金中控股有限公司 | A kind of stainless-steel pan polissoir |
| CN211992388U (en) * | 2020-04-02 | 2020-11-24 | 江苏华太电力仪表有限公司 | Polishing equipment for welded joint |
| CN215115698U (en) * | 2021-03-30 | 2021-12-10 | 中航勘察设计研究院有限公司 | Sand cobble stratum abrasion characteristic testing arrangement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103424326B (en) | Coal rock cutting test device and cutting tool test method | |
| CN109458490B (en) | Drainage device and system for controlling concentrated water discharge in water purification process | |
| KR20040047842A (en) | Abrasive Flow Machining Apparatus And Method | |
| CN208962140U (en) | A kind of PE pipe cutter | |
| CN203993522U (en) | A kind of utility knife is cut the mainshaft mechanism of grinding machine | |
| CN114459938A (en) | Spraying system and abrasion test bed | |
| WO2016008306A1 (en) | Power apparatus, slotter drive device and slotter | |
| CN102303148A (en) | Novel compensating device for boring cutter | |
| CN209067593U (en) | A kind of mobile diesel oil crusher hydraulic system | |
| WO2014146496A1 (en) | Impact mining machine reciprocating telescopic water supply apparatus | |
| CN116220706B (en) | Double-cabin type slurry balance shield tunneling test device and method | |
| CN114459933A (en) | Abrasion test bench | |
| CN117006319A (en) | Traction device for underground pipeline laying | |
| CN1843699A (en) | Radial diamond abrasive tool with planet mechanism | |
| CN114397216A (en) | Cutting abrasion test bed | |
| CN113006785B (en) | High-pressure water jet coal mining machine and control method thereof | |
| CN114397218A (en) | Comprehensive test bed for cutting and abrasion | |
| CN113073936A (en) | Drilling pushing structure and iron ore boundary detection device | |
| CN112428143A (en) | Polishing grinding head structure | |
| CN219119839U (en) | Ball valve with anti-blocking function | |
| CN106838586B (en) | A kind of door machine exposed gear automatic lubrication installation | |
| CN220241119U (en) | Anti-abrasion grinding machine electric spindle | |
| CN220523592U (en) | Novel CTB permanent magnet machine ore discharging water pipe | |
| CN221269685U (en) | Large-diameter high-speed rotating floating main shaft | |
| CN221388931U (en) | Large-diameter high-speed rotating spindle with floating effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |