CN114814182A - Milling test device and milling test method - Google Patents
Milling test device and milling test method Download PDFInfo
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- CN114814182A CN114814182A CN202210541983.4A CN202210541983A CN114814182A CN 114814182 A CN114814182 A CN 114814182A CN 202210541983 A CN202210541983 A CN 202210541983A CN 114814182 A CN114814182 A CN 114814182A
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- 238000003801 milling Methods 0.000 title claims abstract description 343
- 238000012360 testing method Methods 0.000 title claims abstract description 83
- 238000010998 test method Methods 0.000 title claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 18
- 238000004140 cleaning Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000008187 granular material Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 230000007480 spreading Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 5
- 239000004417 polycarbonate Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/42—Road-making materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
- B01F33/8361—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
- B01F33/83613—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by grinding or milling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/23—Mixing of laboratory samples e.g. in preparation of analysing or testing properties of materials
Abstract
The application discloses a milling test device and a milling test method. The milling test device comprises a milling groove, a machine body, a milling rotor and a milling chamber. The milling groove is used for containing milling mixture. The milling rotor is rotatably connected to the machine body for milling and mixing the milling mix in the milling groove. The milling chamber is arranged outside the milling rotor such that the interior of the milling chamber forms a space for the milling rotor to mix the milling mix. The distance between the inner surface of the milling chamber and the milling rotor is adjustably set. The milling test device can obtain the mixing uniformity of milling particles obtained in different distances, so that the distances corresponding to the good mixing uniformity of the milling particles can be summarized and obtained according to the mixing uniformity data of the milling particles, and reference is further formed on the design of actual milling machinery.
Description
Technical Field
The application relates to a milling test device and a milling test method.
Background
Road milling machines such as milling machines and cold recyclers are widely used for maintenance of highway pavements, the construction efficiency and the construction quality of the road milling machines are important for users, and broken pavement materials need to be quickly collected and transported away or mixed and evenly spread on an old pavement as a part of a new pavement in the construction process.
At present, a test device of a milling machine mainly focuses on a test on milling resistance so as to provide a basis for performance design of an actual milling machine, but a test device which does not test mixing uniformity is not provided, however, poor mixing uniformity can cause poor quality of cold recycled pavement, and application of the cold recycling machine on a high-grade road is limited. It is therefore also important to test the mixing homogeneity.
Disclosure of Invention
The application provides a milling test device and a milling test method, which are used for testing mixing uniformity.
The application provides a first aspect mills plane testing arrangement, includes:
a body;
a milling groove for accommodating a milling mixture;
the milling rotor is rotatably connected to the machine body and is used for milling and mixing the milling mixture in the milling groove; and
a milling chamber, which is arranged outside the milling rotor such that an inner space of the milling chamber forms a space for the milling rotor to mix the milling mix, the distance between the inner surface of the milling chamber and the milling rotor being adjustably set.
In some embodiments, the milling rotor is rotatably arranged about an axis extending in a first direction, and the distance of the milling rotor from the inner surface of the milling chamber in a second direction, which is perpendicular to the first direction, is adjustably arranged.
In some embodiments, the milling chamber comprises two end plates arranged perpendicularly to and opposite the second direction, the distance between the milling rotor and the end plates being adjustably set.
In some embodiments, the milling chamber further includes two side plates disposed perpendicular to and opposite to the first direction, the side plates are respectively provided with a first long hole extending along the second direction, and the milling chamber is connected to the machine body through the first long holes.
In some embodiments, the milling chamber comprises a roof plate, the distance between the milling rotor and the roof plate being adjustably set.
In some embodiments, the roof panel comprises at least two sub-roof segments, adjacent two of the at least two sub-roof segments being rotatably connected such that the shape of the roof panel is adjustably set.
In some embodiments, the milling chamber further includes two side plates disposed perpendicular to and opposite to the first direction, the top plate is connected to the two side plates, a second long hole extending in the height direction is disposed on the machine body, and the machine body is connected to the side plates through the second long hole.
In some embodiments, the side plates include an upper side plate, a middle side plate and a lower side plate, the upper side plate is connected with the top plate, the middle side plate is overlapped between the upper side plate and the lower side plate, and the upper side plate is connected with the machine body through the second long hole so as to adjust the distance between the top plate and the milling rotor.
In some embodiments, the milling test device further comprises a material throwing port, the material throwing port is communicated with the inner cavity and is openably and closably arranged so that the milling test device is switched between a first state and a second state, and in the first state, the material throwing port is closed; in the second state, the throwing port is opened.
In some embodiments, the machine body comprises a towing vehicle, a machine frame arranged on the towing vehicle and movably arranged in a first direction relative to the towing vehicle, and a connecting body arranged on the machine frame and movably arranged in a height direction relative to the machine frame, the milling rotor being rotatably connected to the connecting body, the towing vehicle being movably arranged to approach or depart from the milling groove.
In some embodiments, the milling test apparatus further comprises a water spray cleaning device disposed within the milling chamber.
The second aspect of the present application provides a milling test method based on the above milling test apparatus, including the following steps:
spreading the milling mixture in the milling groove;
adjusting the relative position between the inner surface of the milling chamber and the milling rotor, controlling the milling rotor to rotate so as to carry out a mixing test, and detecting the uniformity of milled particles after the test is finished; and
the relative position between the inner surface of the milling chamber and the milling rotor is adjusted several times and mixing tests are carried out several times, the uniformity of the milled granulate being correspondingly determined for each mixing test.
Based on aspects provided herein, a milling test apparatus includes a milling slot, a machine body, a milling rotor, and a milling chamber. The milling groove is used for containing milling mixture. The milling rotor is rotatably connected to the machine body for milling and mixing the milling mix in the milling groove. The milling chamber is arranged outside the milling rotor such that the interior of the milling chamber forms a space for the milling rotor to mix the milling mix. The distance between the inner surface of the milling chamber and the milling rotor is adjustably set. The utility model provides a milling test device's the internal surface of milling room and the distance between the rotor of milling are adjustable, when milling the experiment like this, can carry out many times to the internal surface of milling room and the distance between the rotor of milling, and mix the experiment and then obtain the homogeneity of mixing to the milling granule that obtains when different distances after adjusting at every turn, just so can sum up and obtain the better distance that corresponds of milling granule homogeneity according to the homogeneity data summarization that mixes of the above-mentioned milling granule, and then form the reference to the design of actual milling machinery.
Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a front view structural schematic diagram of a milling test device according to an embodiment of the present application.
Fig. 2 is a schematic top view of the milling test device shown in fig. 1.
Fig. 3 is a schematic view of the arrangement of the milling chamber and the milling rotor of the milling test rig shown in fig. 1.
Fig. 4 is a schematic structural view of a side plate of the milling test device shown in fig. 1.
Fig. 5 is a partial schematic structural view of a top plate of the milling test device shown in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously positioned and the spatially relative descriptors used herein interpreted accordingly.
Referring to fig. 1, the milling test apparatus of the embodiment of the present application includes a milling groove 5, a machine body 1, a milling rotor 3, and a milling chamber 4. The milling flutes 5 serve to receive milling mix. Milling rotor 3 is rotatably connected to machine body 1 for milling and mixing the milling mix in milling groove 5. Milling chamber 4 is arranged outside milling rotor 3 such that the interior of milling chamber 4 forms a space for milling rotor 3 to mix the milling mix. The distance between the inner surface of the milling chamber 4 and the milling rotor 3 is adjustably set.
The distance between the inner surface of the milling chamber 4 and the milling rotor 3 of the milling test device in the embodiment of the application is adjustable, so that when a milling test is performed, the distance between the inner surface of the milling chamber 4 and the milling rotor 3 can be adjusted for multiple times, and after each adjustment, a mixing test is performed to obtain the mixing uniformity of milling particles obtained at different distances, so that the distance corresponding to the good mixing uniformity of the milling particles can be summarized according to the mixing uniformity data of the milling particles, and the actual design of the milling machine is referred to.
As shown in fig. 3, milling rotor 3 is rotatably arranged about an axis extending in first direction x, so that milled milling particles move in milling chamber 4 as milling rotor 3 rotates, and the space in which the milling particles move is the gap between milling rotor 3 and the inner surface of milling chamber 4, the size of which gap has a significant influence on the mixing uniformity of the milling particles, so that adjusting the distance between milling rotor 3 and the inner surface of milling chamber 4 has an influence on the mixing uniformity of the milling particles. The present inventors have found this problem and have made the present invention.
The milling rotor 3 is rotatably connected to the milling support 2, the milling support 2 being arranged fixedly on the machine body 1, i.e. the position of the milling rotor 3 relative to the machine body 1 is relatively fixed. The distance between the inner surface of the milling chamber 4 and the milling rotor 3, that is to say the distance of the inner surface of the milling chamber 4 relative to the machine body 1, is adjusted. In some embodiments, the distance between the inner surface of milling chamber 4 and milling rotor 3 is adjusted by adjusting the shape of milling chamber 4. In other embodiments, the relative position of milling chamber 4 and machine body 1 is adjusted.
In some embodiments, milling rotor 3 is rotatably arranged about an axis extending in first direction x. The distance of milling rotor 3 from the inner surface of milling chamber 4 in a second direction y, which is perpendicular to first direction x, is adjustably set. Referring to fig. 1, for example, when the first direction x is referred to as a left-right direction and the second direction y is referred to as a front-back direction, when the milling rotor 3 rotates counterclockwise, milled milling particles rotate counterclockwise along with the milling rotor 3, so that if the distance between the milling rotor 3 and the inner surface of the front end of the milling chamber 4 is too small, the milled particles may collide with the inner surface of the front end of the milling chamber 4 and cannot complete the rotation of the whole circle, thereby reducing the mixing uniformity. The adjustment of the distance of milling rotor 3 from the inner surface of milling chamber 4 in second direction y can therefore form an important factor in the influence of the mixing homogeneity, and thus obtain a test basis for the design of the actual milled machine product.
The embodiment of the present application does not limit the shape of the milling chamber 4, and for milling chambers 4 of different shapes, only the distance between the milling rotor 3 and the inner surface of the milling chamber 4 in the second direction y may be adjusted. In some embodiments, milling chamber 4 comprises two side plates arranged perpendicularly to and opposite first direction x and two end plates arranged perpendicularly to and opposite second direction y, in the circumferential direction the two side plates and the two end plates forming a tetrahedron. The distance between the milling rotor 3 and the end plate is adjustably set.
In particular, as shown in fig. 4, the milling chamber 4 further comprises two side plates arranged perpendicularly to and opposite the first direction x. The side plates are respectively provided with a first long hole H extending along the second direction y, and the milling chamber 4 is connected with the machine body 1 through the first long hole H. The two end plates are respectively connected with the two ends of the two side plates. Be provided with first slot hole H on the curb plate, the curb plate is connected with organism 1 through wearing to establish the connecting piece in first slot hole H, changes the connecting position that the connecting piece can change curb plate and organism 1 so in first slot hole H, and then changes the end plate at both ends and mills the distance between the plane rotor 3.
As shown in fig. 1, in some embodiments, the milling test device comprises a milling holder 2 arranged on the machine body 1, the milling holder 2 being connected to a side plate of the milling chamber 4.
From the above analysis, it can be known that the movement space of the milled particles along with the rotation of the milling rotor 3 includes the clearance between the milling rotor 3 and the front and rear end plates and the clearance between the milling rotor 3 and the top plate, so that the distance between the milling rotor 3 and the top plate is also an important factor influencing the mixing uniformity.
In some embodiments, milling chamber 4 comprises a ceiling, the distance between milling rotor 3 and the ceiling being adjustably set. To adjust the distance between milling rotor 3 and the roof, in some embodiments, for non-planar roofs, the distance between milling rotor 3 and the roof may be adjusted by adjusting the shape of the roof, for example, the arc of the roof may be adjusted for curved roofs, and for example, the angle of the bend of the roof may be adjusted for bent roofs. In other embodiments, the distance of the top plate relative to the machine body in the height direction can be directly adjusted to adjust.
In some embodiments, referring to fig. 3 and 5, the roof panel includes at least two sub-roof segments 45. Adjacent two sub roof segments 45 of the at least two sub roof segments 45 are rotatably connected such that the shape of the roof is adjustably set. Two adjacent sub-roof segments 45 are rotatably connected, so that the shape of the roof can be adjusted by adjusting the angle between the two adjacent sub-roof segments 45, and the distance between the roof and the milling rotor 3 can be adjusted. Specifically, as shown in fig. 5, two adjacent sub-roof segments 45 may be hinged by a swivel structure 48.
In some embodiments, milling chamber 4 also comprises two side plates arranged perpendicularly to and opposite first direction x. The top plate is connected with the two side plates, a second long hole 21 extending along the height direction z is formed in the milling support 2, and the milling support 2 is connected with the side plates through the second long hole.
The top plate is connected with two side plates, and the side plates are connected with the milling bracket 2, so the height of the connecting point of the side plates and the milling bracket 2 determines the height of the top plate. As shown in fig. 3, the milling holder 2 is provided with a second elongated hole 21 extending in the height direction z, and the milling holder 2 is connected to the side plate by means of a connecting element inserted into the second elongated hole 21, so that the height of the top plate relative to the milling holder 2 can be changed by changing the position of the connecting element in the second elongated hole 21. For example, when the connecting member is located at the bottom of the second long hole, the top plate is located lowest; when the connecting piece is positioned at the top of the second long hole, the top plate is highest.
In some embodiments, referring to fig. 4, the side panels include an upper side panel 41, a middle side panel 42, and a lower side panel 43. The upper side plate 41 is connected to the head plate, the middle side plate 42 overlaps between the upper side plate 41 and the lower side plate 43, and the upper side plate 41 is connected to the milling holder 2 via the second elongated hole 21 to adjust the distance between the head plate and the milling rotor 3. In the height direction, the middle side plate and the upper side plate are in an overlapping relation, so that the position of the upper side plate in the height direction is provided with an adjusting space. Similarly, the lower side plate and the middle side plate are in an overlapping relation, so that the position of the lower side plate in the height direction also has an adjusting space, and the milling depth can be adjusted.
In some embodiments, the milling test device further comprises a throwing port. The material throwing port is communicated with the inner cavity and can be arranged in an openable and closable manner so as to switch the milling test device between a first state and a second state, and the material throwing port is closed in the first state; in the second state, the throwing port is opened. When the throwing port is closed, the milling test device of the embodiment can carry out milling and mixing tests; when the throwing port is opened, the milling test device of the embodiment can perform a throwing recovery test.
In some embodiments, as shown in fig. 1, the body 1 includes a tractor 11, a frame 12, and a connecting body 13. A frame 12 is arranged on the tractor 11 and is movably arranged in a first direction X relative to the tractor 11, a coupling body 13 is arranged on the frame 12 and is movably arranged in a height direction Z relative to the frame 12, the milling rotor 3 is rotatably connected to the coupling body 13, and the tractor 11 is movably arranged close to or away from the milling slot 5.
In some embodiments, the milling test apparatus further comprises a water spray cleaning device disposed within milling chamber 4.
The embodiment of the application further provides a milling test method of the milling test device based on the above embodiments, which includes the following steps:
spreading milling materials in the milling groove 5;
adjusting the relative position between the inner surface of the milling chamber 4 and the milling rotor 3, controlling the milling rotor 3 to rotate to carry out a mixing test, and detecting the mixing uniformity of milled particles after the test is finished; and
the relative position between the inner surface of the milling chamber 4 and the milling rotor 3 is adjusted several times and mixing tests are carried out, the mixing homogeneity of the milled granulate being correspondingly obtained for each mixing test.
The distance between the internal surface of the milling chamber 4 and the milling rotor 3 of the milling test device of the embodiment of the application is adjustable, so when milling tests are carried out, the distance between the internal surface of the milling chamber 4 and the milling rotor 3 can be adjusted for multiple times, and after each adjustment, a mixing test is carried out, so that the mixing uniformity of milling particles obtained at different distances is obtained, so that the distance corresponding to the good mixing uniformity of the milling particles can be summarized according to the mixing uniformity data of the milling particles, and the design of a milling machine is referred.
The structure and operation of the milling test device according to an embodiment of the present application will be described in detail below with reference to fig. 1 to 5.
The milling test device comprises a machine body 1, a milling support 2, a milling rotor 3, a milling chamber 4, a milling groove 5 and a water spraying and cleaning device 6.
The machine body 1 includes a tractor 11, a frame 12, and a connecting body 13. The frame 12 is provided on the tractor 11 and is movably arranged in the first direction x with respect to the tractor 11. A connecting body 13 is arranged on the machine frame 12 and is arranged so as to be displaceable in the height direction z relative to the machine frame 12, the milling rotor 3 being rotatably connected to the connecting body 13. The tractor 11 is movably arranged in the second direction y to be close to or remote from the milling slot 5. The milling bracket 2 is fixedly connected to the connecting body 13 through bolts. The position of the adjustable milling support 2 in the second direction y is moved by controlling the tractor 11, the position of the adjustable milling support 2 in the first direction x is moved by controlling the frame 12, the position of the adjustable milling support 2 in the height direction z is moved by controlling the connecting body 13, and the adjustment of the milling support 2 in all directions can be realized by adjusting the three actions.
The milling rotor 3 and the milling chamber 4 are both mounted on the milling support 2. The position of the milling rotor 3 relative to the milling support 2 is fixed, so that the rotation axis of the milling rotor 3 is kept unchanged, and the stability of the testing device is improved. The rotational speed of the milling rotor 3 is furthermore adjustable in order to carry out milling tests on milling rotors 3 of different rotational speeds.
The milling chamber 4 is formed by splicing transparent PC (polycarbonate) endurance plates, so that the motion condition of the milling mixture in the test process can be observed conveniently. The milling chamber 4 is connected with the milling support 2 in a long circular hole matching mode and can integrally move in the vertical, horizontal and right directions relative to the milling support 2. Suitably, as shown in fig. 4, two side plates of the milling chamber 4 are formed by splicing three plates, so that the milling depth and the relative position of the milling rotor and the milling chamber can be adjusted.
The top plate of the milling chamber 4 is formed by splicing a plurality of transparent PC (polycarbonate) endurance plates in a chain manner, so that the contour of the top plate is adjusted. For ease of installation and adjustment, each transparent PC strength board is secured and fixed within a rectangular frame 47 surrounded by triangular iron 46, as shown in fig. 5. The front and rear sides of the rectangular frames 47 are hinged by a rotary structure 48, and the rectangular frames are spliced into the outline of the milling chamber. Oblong holes 49 are formed in the left side and the right side of the rectangular frame 47 and are fixed with the side plates on the two sides, so that the shape of the outdoor profile of the milling chamber is fixed and adjusted.
Milling and planing mixed materials are uniformly paved in the milling and planing groove 5,
and a water spraying cleaning device 6 is arranged above the milling chamber and is used for dust suppression and dust removal and cleaning of the surface of the milling chamber in the test process. The water spray cleaning device comprises a spray head.
The rear end of the milling chamber is provided with a closable material throwing port, so that the test requirements of material throwing recovery and on-site milling are met, the mixture of the material throwing recovery and on-site milling is remained in the milling groove, and the mixture is uniformly spread and then used for the next milling test. Specifically, the milling test device is provided with a material throwing cylinder 44, the material throwing cylinder 44 is connected to the rear end of the milling chamber, and a switch structure is provided on the material throwing cylinder 44, and the switch structure is configured to open or close a passage of the material throwing cylinder 44.
The milling mixture testing method adopting the milling testing device of the embodiment comprises the following steps: firstly, uniformly spreading a mixture with a proper grade in a milling groove; secondly, adjusting the shape and size of the milling chamber and the relative position of the milling chamber and the milling rotor; thirdly, the operation machine body 1 moves the milling rotor 3 to a corresponding position of the milling groove; fourthly, adjusting the motion parameters of the milling rotor to design parameters, opening the water spraying and cleaning device, performing a milling test and recording the motion rule of milling particles in the milling chamber; fifthly, recording the milling particle uniformity index; and sixthly, after the test is finished, recovering the mixture guide accessory and the test device and the mixture in the milling groove.
The test device of the embodiment of the application is convenient to operate, multiple in test parameters and accurate in evaluation. The material guiding and mixing parameter measurement and analysis of the milling machine can be realized, so that the milling rotor, the milling chamber and the matching condition of the milling rotor and the milling chamber are reasonably optimized, the operation efficiency is improved, and the resources are saved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solutions of the present application and not to limit them; although the present application has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will understand that: modifications to the specific embodiments of the application or equivalent replacements of some of the technical features may still be made; all of which are intended to be encompassed within the scope of the claims appended hereto without departing from the spirit and scope of the present disclosure.
Claims (12)
1. The utility model provides a mill plane test device which characterized in that includes:
a body (1);
a milling groove (5) for receiving a milling mix;
a milling rotor (3) rotatably connected to the machine body (1) for milling and mixing the milling mixture in the milling groove (5); and
a milling chamber (4) arranged outside the milling rotor (3) such that an inner cavity of the milling chamber (4) forms a space in which the milling rotor (3) mixes the milling mix, the distance between the inner surface of the milling chamber (4) and the milling rotor (3) being adjustably set.
2. Milling test device according to claim 1, characterised in that the milling rotor (3) is rotatably arranged about an axis extending in a first direction (x) and that the distance of the milling rotor (3) from the inner surface of the milling chamber (4) in a second direction (y) which is perpendicular to the first direction (x) is adjustably arranged.
3. Milling test device according to claim 2, characterised in that the milling chamber (4) comprises two end plates arranged perpendicularly to and opposite the second direction (y), the distance between the milling rotor (3) and the end plates being adjustably set.
4. Milling test device according to claim 3, characterised in that the milling chamber (4) further comprises two side plates arranged perpendicularly to and opposite the first direction (x), which side plates are each provided with a first elongated hole (H) extending in the second direction (y), through which first elongated holes (H) the milling chamber (4) is connected to the machine body (1).
5. Milling test rig according to claim 1, characterized in that the milling chamber (4) comprises a roof plate, the distance between the milling rotor (3) and the roof plate being adjustably set.
6. Milling test device according to claim 5, characterised in that the roof comprises at least two sub-roof segments (45), of which two adjacent sub-roof segments are rotatably connected, so that the shape of the roof is adjustably arranged.
7. Milling test device according to claim 5, characterised in that the milling chamber (4) further comprises two side plates arranged perpendicularly to and opposite the first direction (x), to which the top plate is connected, and in that the machine body (1) is provided with a second elongated hole (21) extending in the height direction (z), through which the machine body (1) is connected to the side plates.
8. Milling test device according to claim 7, characterized in that the side plates comprise an upper side plate, a middle side plate and a lower side plate, the upper side plate is connected with the top plate, the middle side plate is overlapped between the upper side plate and the lower side plate, the upper side plate is connected with the machine body (1) through the second long hole to adjust the distance between the top plate and the milling rotor (3).
9. The milling test device of claim 1, further comprising a material discharge port in communication with the internal cavity and openably and closably disposed to switch the milling test device between a first state in which the material discharge port is closed and a second state; in the second state, the throwing port is opened.
10. Milling test device according to claim 1, characterised in that the machine body (1) comprises a tractor (11), a machine frame (12) and a connecting body (13), the machine frame (12) being arranged on the tractor (11) and being displaceably arranged in relation to the tractor (11) in a first direction (X), the connecting body (13) being arranged on the machine frame (12) and being displaceably arranged in relation to the machine frame (12) in a height direction (Z), the milling rotor (3) being rotatably connected to the connecting body (13), the tractor (11) being displaceably arranged close to or remote from the milling groove (5).
11. Milling test device according to claim 1, characterized in that it further comprises a water spray cleaning device, which is arranged in the milling chamber (4).
12. Milling test method for a milling test rig according to one of claims 1 to 11, characterized in that it comprises the following steps:
spreading the milling mixture in the milling groove;
adjusting the relative position between the inner surface of the milling chamber (4) and the milling rotor (3), controlling the milling rotor (3) to rotate so as to carry out a mixing test, and detecting the uniformity of milling particles after the test is finished; and
the relative position between the inner surface of the milling chamber (4) and the milling rotor (3) is adjusted several times and mixing tests are carried out several times, the uniformity of the milled granulate being correspondingly determined for each mixing test.
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