CN118003173A - Three-millstone combined floor grinding machine - Google Patents
Three-millstone combined floor grinding machine Download PDFInfo
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- CN118003173A CN118003173A CN202410427178.8A CN202410427178A CN118003173A CN 118003173 A CN118003173 A CN 118003173A CN 202410427178 A CN202410427178 A CN 202410427178A CN 118003173 A CN118003173 A CN 118003173A
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Abstract
The invention provides a three-millstone combined floor grinding machine, which comprises: the rack is arranged in a extending mode along the front-back direction to form a front end portion, a middle portion and a rear end portion, the front end portion is movably provided with two brackets, the middle portion is provided with a containing cavity, and the rear end portion is used for being connected with a first travelling structure; the main grinding disc is rotationally arranged at the front end part; the two auxiliary grinding discs are respectively positioned at two sides of the main grinding disc and are rotatably arranged on the brackets in a one-to-one correspondence manner; each support is connected with an adjusting structure, so that the support is linked and corresponding to the auxiliary grinding disc under the action of external force, and the auxiliary grinding disc stays at one side of the main grinding disc to form an unfolding state, or is at least partially stored in the accommodating cavity to form a storage state after being lifted upwards. The invention solves the technical problems of long grinding time, low efficiency and poor universality in the prior art.
Description
Technical Field
The invention relates to the technical field of floor grinding, in particular to a three-millstone combined floor grinding machine.
Background
The floor grinding machine is mainly used for ground grinding treatment, and can effectively grind terrazzo, a concrete surface layer, an epoxy mortar layer, an old epoxy ground and the like. Existing floor grinding machines are generally divided into a single-head grinding disc or a three-head grinding disc. Although the single-head grinding disc can be synchronously ground by a plurality of grinding heads in a gear linkage way, the problems of small grinding area, long grinding time and low efficiency still exist. The three-head grinding disc is only suitable for large-area grinding operation, cannot be suitable for the action in a narrow space, cannot flexibly move and has limitation.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a three-millstone combined floor grinder which solves the technical problems of long grinding time, low efficiency and poor universality existing in the prior art.
In order to achieve the above purpose, the invention provides a three-millstone combined floor grinding machine, comprising:
The rack is arranged in a extending mode along the front-back direction to form a front end portion, a middle portion and a rear end portion, the front end portion is movably provided with two brackets, the middle portion is provided with a containing cavity, and the rear end portion is used for being connected with a first travelling structure;
the main grinding disc is rotationally arranged at the front end part;
The two auxiliary grinding discs are respectively positioned at two sides of the main grinding disc and are rotatably arranged on the brackets in a one-to-one correspondence manner;
Each support is connected with an adjusting structure so that the corresponding auxiliary grinding disc in linkage with the support stays at one side of the main grinding disc to form an unfolding state under the action of external force, or is at least partially contained in the containing cavity to form a containing state after being lifted upwards;
The adjusting structure comprises:
The sliding rail is spirally extended in the middle along the up-down direction, and two ends of the sliding rail are defined to be a high end and a low end respectively;
the pulley is rotationally arranged on the sliding rail;
the two mounting sleeves are arranged in the middle part at intervals along the up-down direction and are positioned at the inner side of the sliding rail;
the rotating shaft is penetrated through the two mounting sleeves in a gap manner, and the bracket and the pulley are connected with the rotating shaft;
In the unfolded state, the pulley is positioned at the lower end of the sliding rail;
in the storage state, the pulley is positioned at the high end of the sliding rail.
Optionally, an opening is formed between the high end and the low end of the sliding rail, and the opening is arranged towards the front end.
Optionally, a plane perpendicular to the axis of the rotating shaft is defined as a reference plane, and the projection of any two points of the sliding rail on the reference plane is not coincident from the low end of the sliding rail to the high end of the sliding rail.
Optionally, the low end and/or the high end of the sliding rail are/is provided with an inclined section and a straight line section which are sequentially connected, and the inclined section is positioned between the sliding rail and the straight line section.
Optionally, the bracket is connected with the rotating shaft through a first connecting rod and is used for linking the rotating shaft to rotate positively and negatively in the mounting sleeve;
The pulley is connected with the rotating shaft through a second connecting rod and is used for driving the rotating shaft to move back and forth along the up-down direction in the mounting sleeve so as to link the support to lift up or sink down.
Optionally, a positioning structure is arranged at the high end and/or the low end of the sliding rail, the positioning structure comprises a plurality of first positioning holes arranged at the front end part and/or the middle part, and a plurality of second positioning holes arranged at the bracket, and in the unfolded state and/or the storage state, the first positioning holes and the second positioning holes are in one-to-one correspondence and are fixed through the plug-in unit.
Optionally, the plug-in components include fixed pin and R type bolt that separable connects, the fixed pin wears to locate first locating hole with the second locating hole, R type bolt wears to locate perpendicularly the fixed pin is used for the butt preceding tip or middle part or the support.
Optionally, the auxiliary grinding disc is covered with a dustproof shell, a compensation structure is arranged between the dustproof shell and the support, the compensation structure comprises a fixed lifting lug arranged on the support and a floating lifting lug arranged on the dustproof shell, and the floating lifting lug floats in the fixed lifting lug in a short-frequency manner.
Optionally, the front end portion is provided with a second walking structure.
Optionally, the main grinding disc and the two auxiliary grinding discs are respectively driven by motors which are mutually independent.
The technical scheme of the invention is as follows:
1. The main grinding disc is arranged at the front end part of the frame, and the two auxiliary grinding discs are respectively arranged at the two sides of the main grinding disc through two brackets so as to form a combined three-grinding disc structure; the front end part of the frame is connected with the first travelling structure through the middle part and the rear end part of the frame, so that an integral frame structure of the floor grinding machine is formed, and then each grinding disc can be pushed to advance in the moving process of the first travelling structure, so that the ground is ground; furthermore, the grinding area is increased under the synchronous cooperation of the three grinding discs, so that the grinding efficiency is improved;
2. In addition, each bracket is connected with an adjusting structure which is used for adjusting the position change of the corresponding auxiliary grinding disc under the action of external force so as to form an unfolding state at one side of the main grinding disc or a storage state which is stored in the accommodating cavity after being lifted upwards; the grinding machine can be matched with the main grinding disc in an unfolding state, so that the grinding machine is suitable for grinding unobstructed or spacious ground, the grinding time is shortened by increasing the grinding area, and the grinding efficiency is improved; the main grinding disc can be independently used in a storage state, so that the grinding area of the main grinding disc is not occupied, and the main grinding disc is suitable for a narrow space; meanwhile, the stored auxiliary grinding disc can form a height difference with the main grinding disc and the ground after being lifted, so that resistance is prevented from being formed relative to the main grinding disc when the auxiliary grinding disc is not used; furthermore, the two grinding discs are independent relatively, so that a reasonable position state can be selected according to actual needs, and the universality of the grinder is improved;
3. The external force pushes the support to enable the corresponding auxiliary grinding disc to rotate along with the auxiliary grinding disc, so that the linkage rotating shaft rotates in the mounting sleeve, and in the process, the pulley can continuously roll from the lower end of the sliding rail to the high end of the sliding rail to play a role in guiding; the pulley continuously climbs in the spiral sliding rail, so that the support and the auxiliary millstone are lifted after the rotating shaft moves upwards, and then the support and the auxiliary millstone are rotated into the accommodating cavity positioned in the middle for folding and accommodating; not only the inner space formed by the frame is reasonably utilized, the corresponding auxiliary grinding disc is convenient to increase and decrease according to actual needs, but also the auxiliary grinding disc can be suspended on the ground after being lifted by a certain height, and the abrasion to the auxiliary grinding disc is reduced in a narrow space.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a floor grinding machine according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic bottom view of the primary and secondary grinding disks in an embodiment of the invention;
FIG. 4 is a schematic diagram of a positioning structure according to an embodiment of the invention;
fig. 5 is a schematic structural diagram of a compensation structure according to an embodiment of the invention.
In the figure:
1. A front end portion; 2. a middle part; 201. a receiving chamber; 3. a rear end portion; 4. a bracket; 5. a first travel structure; 6. a second walking structure; 7. a main millstone; 8. an auxiliary grinding disc; 9. an adjustment structure; 901. a slide rail; 902. a pulley; 903. a mounting sleeve; 904. a rotating shaft; 905. a first link; 906. a second link; 10. an inclined section; 11. a straight line segment; 12. a first positioning hole; 13. a second positioning hole; 14. a fixing pin; 15. an R-shaped bolt; 16. a dust-proof housing; 17. fixing the lifting lug; 18. a floating lifting lug; 19. and a motor.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
The invention will be further described with reference to fig. 1-5.
In the embodiment of the invention, as shown in fig. 1-2, the three-millstone combined floor grinding machine comprises a frame, a main millstone 7, two auxiliary millstones 8 and an adjusting structure 9; the frame extends along the front and back direction to form a front end part 1, a middle part 2 and a back end part 3, wherein the front end part 1 is movably provided with two brackets 4, the middle part 2 is provided with a containing cavity 201, and the back end part 3 is used for being connected with a first travelling structure 5; the main grinding disc 7 is rotationally arranged at the front end part 1; the two auxiliary grinding discs 8 are respectively positioned at two sides of the main grinding disc 7 and are rotatably arranged on the brackets 4 in a one-to-one correspondence manner;
wherein, each bracket 4 is connected with an adjusting structure 9 so as to lead the corresponding auxiliary grinding disc 8 of the bracket 4 to stay at one side of the main grinding disc 7 to form an unfolding state under the action of external force, or to be at least partially contained in the containing cavity 201 to form a containing state after being lifted upwards;
The adjusting structure 9 comprises a slide rail 901, a pulley 902, two mounting sleeves 903 and a rotating shaft 904; the sliding rail 901 is spirally extended along the up-down direction and arranged in the middle part 2, and two ends of the sliding rail 901 are defined as a high end and a low end respectively; the pulley 902 is rotatably arranged on the slide rail 901; the two mounting sleeves 903 are arranged in the middle part 2 at intervals along the up-down direction and positioned on the inner side of the sliding rail 901; the rotating shaft 904 passes through the two mounting sleeves 903 in a clearance way, and the bracket 4 and the pulley 902 are connected to the rotating shaft 904;
In the unfolded state, the pulley 902 is positioned at the lower end of the slide rail 901;
in the stored state, the pulley 902 is located at the high end of the slide rail 901.
Specifically, in the embodiment of the present invention, the frame extends in the front-rear direction to be divided into a front end portion 1, a middle portion 2 and a rear end portion 3 of the frame, wherein a cavity is provided in the middle of the front end portion 1 for mounting the main grinding disc 7, and two sides thereof are respectively provided with a bracket 4 for mounting the auxiliary grinding disc 8, namely: the two auxiliary grinding discs 8 are respectively positioned at the left side and the right side of the main grinding disc 7 along the left-right direction; the middle part 2 of the frame is used for connecting the front end part 1 and the rear end part 3, and is provided with a containing cavity 201 for avoiding the bracket 4 and the auxiliary grinding disc 8 (of course, the middle part 2 can also be provided with two containing cavities 201 which are respectively in one-to-one correspondence with the two auxiliary grinding discs 8 and are matched with each other, the size and the shape of the containing cavities 201 can be determined according to the specific structural shape of the auxiliary grinding disc 8, or in order to improve the connection strength between the front end part 1 and the rear end part 3, a plurality of reinforcing ribs can be arranged at the middle part 2, and the containing cavities 201 are formed after the reinforcing ribs are reasonably distributed, so that excessive limitation is not carried out; the rear end 3 is used to connect the first running structure 5 to push each grinding disc forward or backward by the first running structure 5. The main frame of the grinder is formed by reasonably arranging the machine frame and then installing all main components; thereby enabling three grinding discs to grind the ground simultaneously during the movement of the first running structure 5, so as to improve the grinding efficiency of the present grinder by increasing the grinding area.
Specifically, as shown in fig. 1, the first travelling structure 5 includes a case, and a plurality of first travelling wheels provided at the bottom of the case; of course, a large amount of dust is generated during the grinding process, and therefore, a dust collecting tower may be disposed in the box and connected to each grinding disc through a dust collecting pipe. As shown in fig. 3, the main grinding disc 7 and the auxiliary grinding disc 8 comprise three rotatable grinding heads, so that stable grinding on the same horizontal plane can be ensured, and the uniformity of grinding effect can be ensured.
In the embodiment of the invention, the bracket 4 is movably arranged and is connected with the adjusting structure 9, the adjusting structure 9 is used for changing the position states of the bracket 4 and the corresponding auxiliary grinding disc 8 in the process of pushing the bracket 4 by external force, so that the bracket 4 and the corresponding auxiliary grinding disc 8 form an unfolding state of staying at one side of the main grinding disc 7, or a storage state of being at least partially stored in the accommodating cavity 201 after being lifted upwards, and in the unfolding state, the main grinding disc 7 and the auxiliary grinding disc 8 grind synchronously, so that the grinding device is suitable for grinding without barriers or spacious ground; on the contrary, in the storage state, only the main grinding disc 7 works, the auxiliary grinding disc 8 is in a standby state, and the grinding machine is suitable for ground grinding in a narrow space; the position of the auxiliary grinding disc 8 is changed by arranging the adjusting structure 9, so that the auxiliary grinding disc 8 can be increased or decreased according to actual needs, and the universality of the grinder is improved; namely: the combined millstone is suitable for grinding large-area areas, and a single main millstone 7 is suitable for grinding corner areas; according to the actual demands of the field, the middle main millstone 7 can be reserved, and an auxiliary millstone 8 can be rapidly arranged on any side of the left side and the right side to form a double millstone structure; even one auxiliary millstone 8 can be respectively arranged on the left side and the right side to form a three millstone structure; the flexible combination mode meets the requirements of different scenes, and the practicability and the adaptability of the grinder are improved.
Specifically, as shown in fig. 2, the adjusting structure 9 includes a sliding rail 901 and a pulley 902 that are matched, and a mounting sleeve 903 and a rotating shaft 904 that are in clearance fit, where the sliding rail 901 is spirally extended along an up-down direction to form a preset reciprocating movement path, the sliding rail 901 is formed with two ends, an upper end is defined as a high end thereof, a lower end is defined as a low end thereof, and a movement path direction from the low end of the sliding rail 901 to the high end thereof is in a rotating gradually lifting form; conversely, the sliding rail 901 is in a rotary gradually sedimentation form from the high end to the low end along the moving path; when the pulley 902 rolls on the slide rail 901, two modes of upward lifting and downward sedimentation can be formed by the guidance of the above-described moving path; in order to enable the bracket 4 and the auxiliary grinding disc 8 to rotate and lift (or subside) continuously under the action of external force so as to enable the bracket 4 and the auxiliary grinding disc 8 to switch between an unfolding state and a storage state, two mounting sleeves 903 are fixed at intervals in the upper-lower direction of the middle part 2, the rotating shaft 904 is arranged in the upper-lower direction, and two ends of the rotating shaft 904 penetrate through the corresponding mounting sleeves 903 so that the rotating shaft 904 can rotate in the mounting sleeves 903 and slide in the upper-lower direction; connecting the corresponding bracket 4, pulley 902 and shaft 904; in this way, in the process of switching from the unfolded state to the storage state, the external force pushes the bracket 4 to move towards the middle part 2, the bracket 4 is connected with the rotating shaft 904, so that the rotating shaft 904 can rotate in the mounting sleeve 903, and the rotating shaft 904 is connected with the pulley 902, so that the pulley 902 can be linked to roll on the sliding rail 901, the rotating shaft 904 can move upwards along with the continuous lifting of the pulley 902, and the auxiliary grinding disc 8 is suspended on the ground and stored in the storage cavity 201 when the pulley 902 reaches the high end of the sliding rail 901; similarly, in the process of switching the storage state to the unfolding state, the external force pushes the bracket 4 to move towards the front end part 1, and the pulley 902 rolls from the high end of the sliding rail 901 to the low end of the sliding rail, so that the bracket 4 and the auxiliary grinding disc 8 are reset; the auxiliary grinding disc 8 can be rapidly unfolded or stored through the operation, so that the auxiliary grinding disc 8 can be increased or decreased according to the use scene, and the grinding machine is not only suitable for large-area rapid grinding, but also can be used for uniform grinding in narrow spaces.
Because the rotating shaft 904 is required to rotate and move up and down in the process of switching between the two states, two connecting shafts are integrally formed at two ends of the rotating shaft 904, and are in clearance fit with the corresponding mounting sleeves 903 as shown in fig. 2, when the pulley 902 is positioned at the lower end of the sliding rail 901, the connecting shaft part positioned above is exposed out of the mounting sleeve 903, along with the rotation of the rotating shaft 904 and the continuous climbing of the pulley 902, the connecting shaft positioned above is gradually hidden in the mounting sleeve 903, and the connecting shaft positioned below is gradually exposed out of the corresponding mounting sleeve 903; the diameter of the connecting shaft is smaller than that of the rotating shaft 904, so that a step surface is formed at the joint of the two, and the step surface can control the length of the rotating shaft 904 moving up and down, namely, the rotating shaft 904 stops rotating when the step surface abuts against the corresponding mounting sleeve 903, and the length is in positive correlation with the path of the sliding rail 901.
Of course, because the structure and shape of the accommodating cavity 201 are variable, in order to be more reasonably adapted to the corresponding accommodating cavity 201, the position structure and shape of the main grinding disc 7 and the auxiliary grinding discs 8 can be adaptively adjusted along with the accommodating cavity 201; such as: the main grinding disc 7 is positioned in the middle of the front ends of the two auxiliary grinding discs 8, and the three are constructed into a 'delta' -shaped structure; and/or the main grinding disc 7 is larger than the auxiliary grinding disc 8 (namely, the auxiliary grinding disc 8=1/2 main grinding disc 7), so that the auxiliary grinding disc 8 can be conveniently rotated in place and is completely contained in the containing cavity 201, the grinding dead angle is prevented from being formed, the size and the position of each grinding disc can be adjusted according to actual needs, and the adjustment is not limited here.
According to the invention, the position of the auxiliary grinding disc 8 is changed through the cooperation of the bracket 4 and the adjusting structure 9, so that the auxiliary grinding disc 8 is in an unfolding state and a storage state, selective adjustment can be conveniently carried out according to different use scenes, and the universality of the grinding machine is improved; in addition, the position of the auxiliary grinding disc 8 can be changed and lifted or settled through the spiral slide rail 901, the auxiliary grinding disc is not required to be completed step by step, and the operation is simpler and more convenient.
As shown in fig. 2, in one embodiment, an opening is formed between the high end and the low end of the slide rail 901, the opening being disposed toward the front end 1. Specifically, in order to define the movement paths of the holder 4 and the sub-grinding table 8, the present embodiment is configured by providing an opening at the slide rail 901, the opening being configured by the high end of the slide rail 901 and the low end thereof, and the opening being provided toward the front end portion 1; in this way, the lower end of the sliding rail 901 can be switched from the unfolding state to the storage state from the high end direction during the movement of the bracket 4 and the auxiliary grinding disc 8, and the sliding rail cannot collide with the main grinding disc 7 or the frame and the like in both states, so that dead angles of movement are avoided; further, the movement of the holder 4 and the sub-grinding wheel 8 can be made smoother by defining the direction of the slide rail 901.
Further, in an embodiment, a plane perpendicular to the axis of the rotating shaft 904 is defined as a reference plane, and the projections of any two points of the sliding rail 901 on the reference plane do not coincide from the low end of the sliding rail 901 to the high end thereof. Specifically, in order to further define the trend of the sliding rail 901, in this embodiment, by defining a plane perpendicular to the axis of the rotating shaft 904 as a reference plane, the reference plane is a plane, and the sliding rail 901 can be projected on the reference plane, and the projections of any two points of the sliding rail 901 on the reference plane are defined to be misaligned, so that the sliding rail 901 is in a semi-closed structure, so that the support 4 and the auxiliary grinding disc 8 can be conveniently guided to the unfolded state or the storage state.
As shown in fig. 2, in an embodiment, the lower end of the sliding rail 901 is provided with an inclined section 10 and a straight section 11 connected in sequence, and the inclined section 10 is located between the sliding rail 901 and the straight section 11. Specifically, in order to enable the pulley 902 to stay at the lower end of the sliding rail 901 and gradually slide to the higher end of the sliding rail 901 under the action of external force, the lower end of the sliding rail 901 is provided with an inclined section 10 and a straight line section 11 which are sequentially connected, the straight line section 11 is connected to the bottom of the inclined section 10, and the lower end of the sliding rail 901 is connected to the top of the inclined section 10; in this way, the pulley 902 can roll to the straight line segment 11 after being guided by the inclined segment 10, and can stay in the straight line segment 11 after the external force disappears, and at this time, the bracket 4 and the auxiliary grinding disc 8 are in an unfolding state, and the bracket 4 and the auxiliary grinding disc 8 are also indirectly positioned in the unfolding state; when external force acts on the support 4, the pulley 902 can slide into the lower end of the slide rail 901 through the inclined section 10 under the action of the external force and gradually slide into the upper end of the slide rail, in the process, the pulley 902 can smoothly transition through the inclined section 10, and the support 4 and the auxiliary grinding disc 8 can be pushed to gradually correspond to each other with smaller external force.
It should be understood that, although the inclined section 10 and the straight section 11 are disposed at the lower end of the sliding rail 901 in the present embodiment, in other embodiments, the inclined section 10 and the straight section 11 may be disposed at the upper end of the sliding rail 901, the straight section is connected to the top of the inclined section, and the upper end of the sliding rail is connected to the bottom of the inclined section; similarly, the straight line segment is used for positioning the pulley 902 to prevent the pulley from automatically sliding into the slide rail after the external force is lost; the inclined section is used for guiding the pulley 902 to come and go to the straight line section and the high end of the sliding rail under the action of external force so as to facilitate the support 4 and the auxiliary grinding disc 8 to gradually enter the corresponding state.
As shown in fig. 2, in an embodiment, the bracket 4 is connected with the rotating shaft 904 through a first connecting rod 905, and is used for linking the rotating shaft 904 to rotate in a forward and reverse directions in the mounting sleeve 903; the pulley 902 is connected with the rotating shaft 904 through a second connecting rod 906, and is used for driving the rotating shaft 904 to move back and forth up and down in the mounting sleeve 903 so as to link the bracket 4 to lift up or sink down. Specifically, in order to make the rotating shaft 904 connect the bracket 4 and the pulley 902 respectively, the present embodiment makes corresponding changes in the current position by providing the first link 905 and the second link 906; one end of the first link 905 is formed with an annular structure, and is used for surrounding the rotating shaft 904, and the other end of the first link 905 is connected to the bracket 4, so that the rotating shaft 904 is linked to rotate through the first link 905 in the process that the external force pushes the bracket 4 to move towards the middle 2; one end of the second connecting rod 906 is also formed into an annular structure, and is used for surrounding the rotating shaft 904, and the other end of the second connecting rod is connected to the pulley 902, so that the pulley 902 is driven by the second connecting rod 906 to roll on the sliding rail 901 when the rotating shaft 904 rotates, and the rotating shaft 904 is gradually lifted or lowered; the first connecting rod 905 and the second connecting rod 906 are arranged at intervals and are used for avoiding each other; of course, the first link 905 and/or the second link 906 may not be linear, and may be adapted according to the structure of the frame or other components.
As shown in fig. 4, in an embodiment, a positioning structure is disposed at a lower end of the sliding rail 901, and the positioning structure includes a plurality of first positioning holes 12 disposed at the front end 1 and a plurality of second positioning holes 13 disposed at the bracket 4, where in the unfolded state, the first positioning holes 12 and the second positioning holes 13 are in one-to-one correspondence and are fixed by an insert. Specifically, in the grinding process, because the main grinding disc 7 and/or the auxiliary grinding disc 8 have the jumping condition, and the jumping can cause the support 4 to move to different degrees, in order to improve the stability of the support 4 and the auxiliary grinding disc 8 in the unfolded state, in this embodiment, a positioning structure is arranged at the lower end of the sliding rail 901, so that the support 4 is fixed at the front end part 1, and each grinding disc resonates at the same frequency; the positioning structure comprises a first positioning hole 12 formed at the front end part 1 and a second positioning hole 13 formed at the bracket 4, wherein in the unfolded state, the first positioning hole 12 and the second positioning hole 13 are communicated and then penetrate through the insert to realize the relative fixation of the front end part 1 and the bracket 4.
Specifically, in order to avoid the situation that the bracket 4 cannot be separated from the front end portion 1 or fixed to the front end portion 1 due to the position setting of each positioning hole, in this embodiment, a notch is provided in the front end portion 1, a socket is provided at an end of the bracket 4 close to the front end portion 1 for being inserted into the notch, the front end portion 1 and the bracket 4 are connected by using a plugging manner, and the first positioning hole 12 and the second positioning hole 13 are formed at the notch and the socket, respectively. In addition, in order to connect or disconnect the front end portion 1 and the bracket 4 quickly, a chamfering process may be performed at the corresponding position, and since the chamfering is provided obliquely, each component during rotation may be avoided. Of course, the number of the first positioning holes 12 and the second positioning holes 13 may be plural, so that plural inserts can pass through and be locked, and the connection strength of the front end portion 1 and the bracket 4 is improved. In other embodiments, the high end of the sliding rail 901 may also be provided with the positioning structure for locking the bracket 4 and the auxiliary grinding disc 8 in the storage state; meanwhile, when the high end and the low end of the sliding rail 901 are both provided with positioning structures, the plug-ins at the two positions can be used alternately, the support 4 and the auxiliary grinding disc 8 can be locked in corresponding states, the plug-ins are only locked in the current state, a group of plug-ins can be used in the whole process, and the loss of the plug-ins is avoided.
Further, in an embodiment, the insert includes a fixing pin 14 and an R-shaped bolt 15 that are detachably connected, the fixing pin 14 is penetrated through the first positioning hole 12 and the second positioning hole 13, and the R-shaped bolt 15 is vertically penetrated through the fixing pin 14 and is used for abutting against the front end portion 1 or the bracket 4. Specifically, in order to achieve the separable connection of the front end portion 1 and the bracket 4, the present embodiment defines that the insert includes a fixing pin 14 and an R-shaped plug 15, the fixing pin 14 being used to axially penetrate through the first positioning hole 12 and the second positioning hole 13 so as to fix the front end portion 1 and the bracket 4 relatively; in order to prevent the fixing pin 14 from backing up in a natural state, the R-shaped bolt 15 penetrates in the radial direction of the fixing pin 14 and abuts against the front end portion 1 or the bracket 4 to connect the front end portion 1 and the bracket 4 by limiting the fixing pin 14; conversely, the front end portion 1 and the bracket 4 are released when the R-shaped plug 15 and the fixing pin 14 are removed one by one. Compared with the common linear type bolt, the R-shaped bolt 15 is convenient for quick insertion and quick taking, and the condition that the R-shaped bolt 15 is separated from the fixed pin 14 in the vibration process can be avoided.
As shown in fig. 5, in an embodiment, the auxiliary grinding disc 8 is covered with a dust-proof shell 16, a compensating structure is arranged between the dust-proof shell 16 and the bracket 4, the compensating structure comprises a fixed lifting lug 17 arranged on the bracket 4 and a floating lifting lug 18 arranged on the dust-proof shell 16, and the floating lifting lug 18 floats on the fixed lifting lug 17 at a short frequency.
Specifically, in order to mount the auxiliary grinding disc 8 on the bracket 4 and concentrate the floating dust generated by the auxiliary grinding disc 8 in the dust collecting tower, in this embodiment, a dust collecting opening formed by the dust collecting housing 16 is detachably connected with a dust collecting pipe of the dust collecting tower by sleeving the auxiliary grinding disc 8 with the dust collecting housing 16, and the auxiliary grinding disc 8 is rotatably arranged in the dust collecting housing 16 for grinding the ground. Of course, the main grinding disk 7 can also be sleeved with a dustproof shell, and the dustproof shell is connected with the dust collecting tower through another dust collecting pipe. In practice, the main grinding disc 7 and the auxiliary grinding disc 8 are rotatably arranged in corresponding dustproof shells 16, and the dustproof shells 16 are arranged on corresponding brackets or front end parts.
On the other hand, since the grinding process is performed on uneven ground, in order to enable the auxiliary grinding disc 8 to form a self-adaptive effect, in this embodiment, a compensation structure is respectively arranged on opposite surfaces of the auxiliary grinding disc 8, the compensation structure includes a fixed lifting lug 17 fixed on the support 4 and a floating lifting lug 18 fixed on the dust-proof housing 16, and the fixed lifting lug 17 is provided with a floating groove along the vertical direction for enabling the floating lifting lug 18 to slide and stretch in, so that the floating lifting lug 18 can float in the floating groove at a short frequency, the ground with uneven ground can be self-adaptive, and the auxiliary grinding disc 8 can be in contact with the ground all the time in a unfolded state, so that the available grinding area is increased.
As shown in fig. 5, in one embodiment, the front end portion 1 is provided with a second running structure 6. Specifically, in order to make the grinder stably walk on the ground, the second walking structure 6 is arranged at the front end part 1, the second walking structure 6 comprises a frame body and second walking wheels arranged at the frame body, the frame body is connected in the middle of the front end part 1 to form a triangular stable structure with a plurality of second walking wheels at the rear end part 3, and the grinder can move at a uniform speed under the cooperation of the first walking wheels and the second walking wheels; and when each millstone is in an unfolding state, each millstone is contacted with the ground, so that the millstone is convenient to grind.
As shown in fig. 1 and 5, in one embodiment, the main grinding disc 7 and the two auxiliary grinding discs 8 are driven by motors 19, respectively, which are arranged independently of each other. Specifically, because each pair of grinding discs 8 is relatively independent, in order to increase and decrease the pair of grinding discs 8 according to the actual use situation, each grinding disc in the embodiment is driven by a separate motor 19 respectively, compared with the traditional driving mode of one motor 19, the position state of the pair of grinding discs 8 can be conveniently adjusted, the cooperation of a plurality of gear sets is not needed, and the assembly is simpler.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (10)
1. A three mill combination floor grinding machine, characterized by comprising:
The rack is arranged in a extending mode along the front-back direction to form a front end portion, a middle portion and a rear end portion, the front end portion is movably provided with two brackets, the middle portion is provided with a containing cavity, and the rear end portion is used for being connected with a first travelling structure;
the main grinding disc is rotationally arranged at the front end part;
The two auxiliary grinding discs are respectively positioned at two sides of the main grinding disc and are rotatably arranged on the brackets in a one-to-one correspondence manner;
Each support is connected with an adjusting structure so that the corresponding auxiliary grinding disc in linkage with the support stays at one side of the main grinding disc to form an unfolding state under the action of external force, or is at least partially contained in the containing cavity to form a containing state after being lifted upwards;
The adjusting structure comprises:
The sliding rail is spirally extended in the middle along the up-down direction, and two ends of the sliding rail are defined to be a high end and a low end respectively;
the pulley is rotationally arranged on the sliding rail;
the two mounting sleeves are arranged in the middle part at intervals along the up-down direction and are positioned at the inner side of the sliding rail;
the rotating shaft is penetrated through the two mounting sleeves in a gap manner, and the bracket and the pulley are connected with the rotating shaft;
In the unfolded state, the pulley is positioned at the lower end of the sliding rail;
in the storage state, the pulley is positioned at the high end of the sliding rail.
2. The three-grinding-disc combined floor grinder according to claim 1, wherein an opening is formed between the high end and the low end of the slide rail, and the opening is arranged toward the front end portion.
3. A three-grinding-disc combined floor grinder according to claim 2, wherein a plane perpendicular to the axis of the rotating shaft is defined as a reference plane, and projections of any two points of the sliding rail on the reference plane are not coincident from the lower end of the sliding rail in the direction from the upper end of the sliding rail.
4. The three-millstone combined floor grinding machine according to claim 2, wherein the lower end and/or the higher end of the sliding rail are/is provided with an inclined section and a straight line section which are sequentially connected, and the inclined section is positioned between the sliding rail and the straight line section.
5. The three-grinding-disc combined floor grinding machine according to any one of claims 1 to 4, wherein the bracket is connected with the rotating shaft through a first connecting rod and is used for linking the rotating shaft to rotate positively and negatively in the mounting sleeve;
The pulley is connected with the rotating shaft through a second connecting rod and is used for driving the rotating shaft to move back and forth along the up-down direction in the mounting sleeve so as to link the support to lift up or sink down.
6. A three-grinding-disc combined floor grinder according to any one of claims 1 to 4, wherein a positioning structure is arranged at the high end and/or the low end of the sliding rail, the positioning structure comprises a plurality of first positioning holes arranged at the front end and/or the middle part, and a plurality of second positioning holes arranged at the bracket, and in the unfolded state and/or the storage state, the first positioning holes and the second positioning holes are in one-to-one correspondence and are fixed through an insert.
7. The three-abrasive disc combined floor grinding machine according to claim 6, wherein the insert comprises a fixing pin and an R-shaped plug pin which are detachably connected, the fixing pin is arranged through the first positioning hole and the second positioning hole in a penetrating mode, and the R-shaped plug pin is vertically arranged through the fixing pin in a penetrating mode and is used for abutting against the front end portion, the middle portion or the support.
8. The three-millstone combined floor grinding machine according to claim 1, wherein the auxiliary millstone is covered with a dustproof shell, a compensation structure is arranged between the dustproof shell and the bracket, the compensation structure comprises a fixed lifting lug arranged on the bracket and a floating lifting lug arranged on the dustproof shell, and the floating lifting lug floats on the fixed lifting lug at a short frequency.
9. The three-millstone combined floor grinding machine according to claim 1, wherein the front end portion is provided with a second traveling structure.
10. A three-disc combination floor grinding machine according to claim 1, characterized in that the primary disc and the two secondary discs are each driven by motors arranged independently of each other.
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| CN202410427178.8A CN118003173B (en) | 2024-04-10 | 2024-04-10 | Three-millstone combined floor grinding machine |
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| CN202410427178.8A CN118003173B (en) | 2024-04-10 | 2024-04-10 | Three-millstone combined floor grinding machine |
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