CN215924132U - Large-scale grinding roller grinding wheel replacing lifting appliance - Google Patents
Large-scale grinding roller grinding wheel replacing lifting appliance Download PDFInfo
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- CN215924132U CN215924132U CN202121451946.1U CN202121451946U CN215924132U CN 215924132 U CN215924132 U CN 215924132U CN 202121451946 U CN202121451946 U CN 202121451946U CN 215924132 U CN215924132 U CN 215924132U
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Abstract
The utility model discloses a large grinding roller and grinding wheel replacing lifting appliance, which relates to the technical field of lifting appliances and comprises a grinding wheel lifting appliance and a U-shaped channel steel, wherein the U-shaped channel steel comprises an arc-shaped groove section and straight groove sections fixedly connected to two ends of the arc-shaped groove section, the two straight groove sections are parallel to each other and are tangent to a circle where the arc-shaped groove section is located, an internal through groove of the arc-shaped groove section is communicated with an internal through groove of the straight groove section to form a clamping groove for containing the edge of a grinding wheel, lifting holes are symmetrically formed in two sides of the grinding wheel lifting appliance, at least three lifting lugs are arranged on any end face of the grinding wheel lifting appliance, and the lifting lugs are uniformly distributed on the end face of the grinding wheel lifting appliance. The grinding wheel lifting appliance can be well adapted to a large grinding roller grinding wheel, so that the lifting process is safer, in addition, the grinding wheel lifting appliance and the grinding wheel can be vertically lifted by hooking the lifting hole of the grinding wheel lifting appliance, and the grinding wheel lifting appliance and the grinding wheel can be horizontally lifted by hooking the lifting lug of the grinding wheel lifting appliance, so that the assembly and the disassembly of the grinding wheel are convenient.
Description
Technical Field
The utility model relates to the technical field of lifting appliances, in particular to a large grinding roller grinding wheel replacing lifting appliance.
Background
After the working roll and the supporting roll of the wide and thick plate rolling mill are worn in a certain roll period, a large-scale roll grinder is needed to grind the surface of the working roll and the supporting roll, and a surface hardening layer and surface defects are removed. The grinding wheel required by the roll grinder is large in size and heavy in weight. For example, the diameter of a grinding wheel of a 5000mm rolling mill roll grinder reaches 1066mm, the weight of a single grinding wheel exceeds 400kg, and the total weight of the grinding wheel and a flange plate used by the grinding wheel is close to 1 ton. The emery wheel need be changed after a period of wearing and tearing, and how safe transport becomes the problem that needs to solve when using the handling installation of big emery wheel.
The method that usually adopts at present utilizes suspender and wire rope to cooperate the crane with the cooperation to carry out handling and installation by many staff, because big emery wheel general size, weight are great, staff intensity of labour is big, work efficiency is low, and has the potential safety hazard such as pounding wound, collision, in addition, the emery wheel still can cause the damage of emery wheel with the hard contact of crowbar, ground etc. in the transportation installation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a large grinding roller and grinding wheel replacing lifting appliance.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a large grinding roller and grinding wheel replacing hanger comprises a grinding wheel hanger which comprises a U-shaped channel steel, wherein the U-shaped channel steel comprises an arc-shaped groove section and straight groove sections fixedly connected with two ends of the arc-shaped groove section, the two straight groove sections are parallel to each other and are tangent to a circle where the arc-shaped groove section is located,
the inner through groove of the arc-shaped groove section is communicated with the inner through groove of the straight groove section to form a clamping groove for accommodating the edge of the grinding wheel,
the lifting holes are symmetrically formed in two sides of the grinding wheel lifting appliance, at least three lifting lugs are arranged on any end face of the grinding wheel lifting appliance, and the lifting lugs are evenly distributed on the end face of the grinding wheel lifting appliance.
As a preferable scheme of the large grinding roller grinding wheel replacing lifting appliance of the utility model, wherein: the arc of the arc groove section is a semicircular arc, the distance between the two straight groove sections is equal to the inner diameter of the arc groove section, and the inner diameter of the arc groove section is larger than the diameter of the middle assembling hole of the grinding wheel.
As a preferable scheme of the large grinding roller grinding wheel replacing lifting appliance of the utility model, wherein: the width of the inner through groove of the arc-shaped groove section is equal to that of the inner through groove of the straight groove section, the width of the inner through groove of the arc-shaped groove section is larger than that of the grinding wheel, and the difference value of the width of the inner through groove of the arc-shaped groove section and the width of the inner through groove of the straight groove section is 5 mm.
As a preferable scheme of the large grinding roller grinding wheel replacing lifting appliance of the utility model, wherein: the height of the grinding wheel lifting tool is smaller than the outer diameter of the grinding wheel, and the difference value of the height of the grinding wheel lifting tool and the outer diameter of the grinding wheel is 50 mm.
As a preferable scheme of the large grinding roller grinding wheel replacing lifting appliance of the utility model, wherein: the width of the grinding wheel lifting tool is larger than the outer diameter of the grinding wheel, and the difference value of the width of the grinding wheel lifting tool and the outer diameter of the grinding wheel is 5 mm.
As a preferable scheme of the large grinding roller grinding wheel replacing lifting appliance of the utility model, wherein: the grinding wheel lifting appliance fixing device further comprises a fixing auxiliary tool for vertically fixing the grinding wheel lifting appliance, the fixing auxiliary tool comprises a bottom plate and two fixing groove arms fixedly arranged on the bottom plate, internal through grooves for containing the edge parts of the grinding wheel lifting appliance are formed in the fixing groove arms,
the two fixed slot arms are symmetrically arranged on the bottom plate, and the through slots in the two fixed slot arms are aligned.
As a preferable scheme of the large grinding roller grinding wheel replacing lifting appliance of the utility model, wherein: the height of the fixed slot arm is smaller than that of the grinding wheel lifting appliance, and the difference value of the fixed slot arm and the grinding wheel lifting appliance is 5 mm.
As a preferable scheme of the large grinding roller grinding wheel replacing lifting appliance of the utility model, wherein: the distance between the opposite sides of the two fixed groove arms is larger than the width of the grinding wheel lifting appliance, and the difference value of the two fixed groove arms is 5 mm.
As a preferable scheme of the large grinding roller grinding wheel replacing lifting appliance of the utility model, wherein: and the bottom plate is provided with a positioning bolt hole.
The utility model has the beneficial effects that:
(1) the grinding wheel hanger can be well adapted to a large grinding roller and a grinding wheel, so that the grinding wheel can be stably placed in the grinding wheel hanger, the lifting process is safer, the potential safety hazards of smashing and collision caused by manual carrying are eliminated, the damage of the grinding wheel in the processes of disassembly, assembly and movement is avoided, in addition, the grinding wheel hanger and the grinding wheel can be vertically lifted through hooking the lifting hole of the grinding wheel hanger, the grinding wheel hanger and the grinding wheel can be horizontally lifted through hooking the lifting lug of the grinding wheel hanger, the assembly and disassembly of the grinding wheel are facilitated, and the replacement efficiency of the grinding wheel is improved.
(2) According to the utility model, through the matching of the fixing auxiliary tool and the grinding wheel lifting tool, the grinding wheel lifting tool can be fixedly placed in the fixing auxiliary tool along the vertical direction, so that the grinding wheel is convenient to replace and transport.
(3) The grinding wheel lifting appliance and the fixing auxiliary tool are simple in structure, convenient to manufacture and low in cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a grinding wheel hanger in a large grinding roller grinding wheel replacing hanger provided by the utility model;
FIG. 2 is a schematic structural diagram of a fixed auxiliary tool in a large grinding roller grinding wheel replacing lifting appliance provided by the utility model;
wherein: 1. a grinding wheel hanger; 2. an arc-shaped groove section; 3. a straight groove section; 4. hoisting holes; 5. lifting lugs; 6. fixing an auxiliary tool; 7. a base plate; 8. a fixed slot arm; 9. and positioning the bolt hole.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the utility model briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
The embodiment provides a large-scale grinding roller grinding wheel replacing lifting appliance which comprises a grinding wheel lifting appliance 1 and a fixed auxiliary tool 6. The grinding wheel can be vertically or horizontally lifted by the grinding wheel lifting appliance 1, so that the flange plate in the middle of the grinding wheel can be conveniently mounted and dismounted. Fixed auxiliary fixtures 6 can be fixed with emery wheel hoist 1 along vertical direction and place, be convenient for hang out abandonment emery wheel from emery wheel hoist 1, simultaneously, also be convenient for hoist and mount new emery wheel to emery wheel hoist 1 in, carry out subsequent installation.
Specifically, the grinding wheel hanger 1 comprises a U-shaped channel steel, and the U-shaped channel steel comprises an arc-shaped channel section 2 and two straight channel sections 3 which are integrally formed. The arc of arc groove section 2 place is the semicircle, and the one end of two straight flute sections 3 is connected with the both ends of arc groove section 2 respectively, and two straight flute sections 3 are parallel to each other, and all are tangent with the place circle of arc groove section 2.
Inside through grooves are formed in the straight groove section 3 and the arc groove section 2, the inner width of the groove section of the straight groove section 3 is equal to the outer width of the groove section of the arc groove section 2, the outer end face of the straight groove section 3 and the outer end face of the arc groove section 2 are located in the same plane, and the inner end face of the straight groove section 3 and the inner end face of the arc groove section 2 are also located in the same plane. The arc groove section 2 is communicated with the inner through groove in the straight groove section 3 to form a clamping groove for containing the edge of the grinding wheel.
It should be noted that the inner width D2 of the straight groove section 3 and the arc groove section 2 is greater than the thickness of the grinding wheel, and the width L of the grinding wheel hanger 1, i.e. the distance between the side surfaces of the two straight groove sections 3 away from each other, is greater than the outer diameter of the grinding wheel, so that the grinding wheel can be placed in the grinding wheel hanger 1. Simultaneously, for the too big and width L and the emery wheel external diameter difference of the width D2 of the groove section of avoiding the thickness of emery wheel and emery wheel hoist 1 and lead to the emery wheel to rock in emery wheel hoist 1, this embodiment sets up the width D2 of the groove section of emery wheel hoist 1 to 5mm big than emery wheel thickness, set up the width L of emery wheel hoist 1 to 5mm big than emery wheel diameter, it is more stable after 1 to make the emery wheel put into emery wheel hoist, the phenomenon of rocking hardly appears.
The internal diameter of arc groove section 2 is greater than the diameter of emery wheel middle part pilot hole in emery wheel hoist 1, is convenient for install and dismantle the ring flange in emery wheel middle part.
The height H of the grinding wheel hanger 1, namely the distance between the lowest end of the arc-shaped groove section 2 and the upper end of the straight groove section 3 is smaller than the outer diameter of the grinding wheel, and the difference value of the height H and the upper end of the straight groove section is 50 mm. The height difference here is to facilitate the lifting of the grinding wheel out of the grinding wheel hoist 1 by the jib crane.
In addition, the left side and the right side of the grinding wheel hanger 1 are symmetrically provided with hanging holes 4, the two hanging holes 4 are respectively arranged on the side surfaces of the two straight groove sections 3 which are far away from each other, and the two hanging holes 4 are arranged in an aligned mode. The lifting equipment can lift the grinding wheel lifting appliance 1 by hooking the lifting hooks on the two lifting holes 4, and the grinding wheel lifting appliance 1 is ensured to be vertically placed all the time in the air. The front end face of the grinding wheel lifting appliance 1 is provided with three lifting lugs 5, the three lifting lugs 5 are respectively arranged in the middle of the front end face of the arc-shaped groove section 2 and at positions where the two straight groove sections 3 are close to the upper end, and the three lifting lugs 5 are respectively positioned at three top points of the regular triangle. The grinding wheel hanger 1 can be lifted by the hanger through respectively hooking three lifting lugs 5 by a ring of three-hook chain locks, and the grinding wheel hanger 1 can be kept horizontally placed in the air.
Fixed auxiliary fixtures 6 include two fixed slot arms 8 of bottom plate 7 and fixed welding at 7 up end of bottom plate, and two fixed slot arms 8 are the channel-section steel, and its inside all is formed with inside logical groove, and the width d that just this inside led to the groove is greater than the thickness of emery wheel hoist 1. The two fixing groove arms 8 are symmetrically and oppositely arranged on the bottom plate 7, so that the through grooves in the two fixing groove arms 8 are aligned. The distance between the opposite sides of the two fixed groove arms 8 is larger than the width of the grinding wheel hanger 1, so that the grinding wheel hanger 1 can be placed in the clamping groove between the two fixed groove arms 8, and the grinding wheel hanger 1 is kept vertically placed. Simultaneously, for avoiding emery wheel hoist 1 to take place to rock in fixed auxiliary fixtures 6 inside, this implementation will fix auxiliary fixtures 6 width L, and the interval between two relative one sides of fixed slot arm 8 sets up to 5mm bigger than emery wheel width L promptly.
The height H of the auxiliary fixing tool 6, namely the height of the two fixing groove arms 8 is set to be 5mm smaller than the height H of the grinding wheel hanger 1.
In addition, positioning bolt holes 9 are formed in four corners of the bottom plate 7, and the bottom plate 7 can be fixedly mounted on the ground through foundation bolts.
The following will specifically describe a grinding wheel of a large-sized grinding machine in a certain steel mill as an example. The outer diameter of the grinding wheel of the large and medium grinding machine in the steel mill is 1066mm before use, the diameter of an assembly hole in the middle of the grinding wheel is 508mm, the thickness of the grinding wheel is 152mm, and the grinding wheel is replaced when the grinding wheel is worn to 745mm in outer diameter.
Fig. 1 is grinding wheel hoist 1, including integrated into one piece's arc groove section 2 and straight groove section 3, its inslot width D2 is 157mm, and grinding wheel hoist 1's height H is 1016mm, and grinding wheel hoist 1's width is 1071mm, and grinding wheel hoist 1 arc groove section 2 internal diameter is 510mm, is greater than the diameter of emery wheel pilot hole. Fig. 2 shows a fixing auxiliary tool 6, which includes a bottom plate 7 and two fixing slot arms 8 fixedly welded on the bottom plate 7. Wherein, the height h of fixed slot arm 8 is 1011mm, and the width l of fixed auxiliary fixtures 6 is 1076 mm.
The embodiment also provides a method for replacing the large grinding roller and the grinding wheel, which comprises the following steps:
s1: hoisting the grinding wheel to be replaced out of the roll grinder by using hoisting equipment, flatly placing the grinding wheel on the ground, and loosening a locking nut on a flange plate in the middle of the grinding wheel;
s2: respectively hooking the chain slings with lifting lugs 5 on the end surfaces of the grinding wheel slings 1, horizontally lifting the grinding wheel slings 1 by using lifting equipment, and then driving the grinding wheel slings 1 to move, so that the grinding wheels horizontally enter the grinding wheel slings 1;
s3: lifting the grinding wheel hanger 1 to separate a flange plate in the middle of the grinding wheel, and then horizontally placing the grinding wheel hanger 1 and the grinding wheel on the ground;
s4: dismantling a chain sling hung on the end face of the grinding wheel sling 1, hooking lifting hooks on lifting holes 4 on two sides of the grinding wheel sling 1, vertically hoisting and moving the grinding wheel sling 1 together with a grinding wheel by using hoisting equipment, and vertically placing the grinding wheel sling in a fixed auxiliary tool 6;
s5: the grinding wheel needing to be replaced is lifted out of the grinding wheel lifting appliance 1 through the hanging strip and is transported to a waste grinding wheel storage place, and then a new replaced grinding wheel is lifted out and is transported into the grinding wheel lifting appliance 1;
s6: hooking lifting hooks of a lifting appliance in lifting holes 4 on two sides of a grinding wheel lifting appliance 1, lifting the grinding wheel lifting appliance 1 together with a new grinding wheel through lifting equipment, and then horizontally placing the grinding wheel lifting appliance on the ground;
s7: dismantling the lifting appliances hung on two sides of the grinding wheel lifting appliance 1, hooking lifting hooks on lifting lugs 5 on the end face of the grinding wheel lifting appliance 1, lifting the grinding wheel lifting appliance 1 together with a new grinding wheel through a lifting device, controlling an assembly hole in the middle of the new grinding wheel to be aligned with a flange plate on the ground, and then descending the grinding wheel lifting appliance 1 to enable the flange plate to enter the assembly hole of the grinding wheel;
s8: removing a lifting hook hung on the lifting lug 5, hooking the lifting hook in lifting holes 4 on two sides of the grinding wheel hanger 1, then lifting and moving the grinding wheel hanger 1, and then vertically placing the grinding wheel hanger in a fixed auxiliary tool 6;
s9: and hoisting the assembled new grinding wheel by using the hanging strip, separating the new grinding wheel from the grinding wheel hanger 1, and transferring the new grinding wheel to the mounting position of the roll grinder to finish the mounting of the new grinding wheel.
Through adopting above-mentioned grinding roller emery wheel to change the hoist and correspond to change and take precautions against, effectively improved the change efficiency of emery wheel, and the handling process is safer, has eliminated artifical transport and has caused the potential safety hazard of injuring by a crashing object, collision, has also avoided the emery wheel at the dismouting with remove the damage of in-process.
In addition to the above embodiments, the present invention may have other embodiments; all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides a large-scale grinding roller emery wheel changes hoist which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the grinding wheel hanger (1) comprises a U-shaped channel steel, the U-shaped channel steel comprises an arc-shaped groove section (2) and straight groove sections (3) fixedly connected to two ends of the arc-shaped groove section (2), the two straight groove sections (3) are parallel to each other and are tangent to a circle where the arc-shaped groove section (2) is located,
the inner through groove of the arc-shaped groove section (2) is communicated with the inner through groove of the straight groove section (3) to form a clamping groove for accommodating the edge of the grinding wheel,
hanging holes (4) are symmetrically formed in two sides of the grinding wheel lifting appliance (1), at least three lifting lugs (5) are arranged on any end face of the grinding wheel lifting appliance (1), and the lifting lugs (5) are uniformly distributed on the end face of the grinding wheel lifting appliance (1).
2. The large grinding roll grinding wheel changing sling according to claim 1, wherein: the arc where the arc groove section (2) is located is a semicircular arc, the distance between the two straight groove sections (3) is equal to the inner diameter of the arc groove section (2), and the inner diameter of the arc groove section (2) is larger than the diameter of the assembly hole in the middle of the grinding wheel.
3. The large grinding roll grinding wheel changing sling according to claim 1, wherein: the width of the inner through groove of the arc-shaped groove section (2) and the width of the inner through groove of the straight groove section (3) are equal, the width of the inner through groove of the arc-shaped groove section (2) and the width of the inner through groove of the straight groove section (3) are larger than the width of the grinding wheel, and the difference value of the two is 5 mm.
4. The large grinding roll grinding wheel changing sling according to claim 1, wherein: the height of the grinding wheel hanger (1) is smaller than the outer diameter of the grinding wheel, and the difference value of the height and the outer diameter is 50 mm.
5. The large grinding roll grinding wheel changing sling according to claim 1, wherein: the width of the grinding wheel hanger (1) is larger than the outer diameter of the grinding wheel, and the difference value of the width and the outer diameter is 5 mm.
6. The large grinding roller grinding wheel replacing lifting appliance according to any one of claims 1 to 5, wherein: the grinding wheel hanger is characterized by further comprising a fixing auxiliary tool (6) used for vertically fixing the grinding wheel hanger (1), wherein the fixing auxiliary tool (6) comprises a bottom plate (7) and two fixing groove arms (8) fixedly arranged on the bottom plate (7), an inner through groove used for accommodating the edge part of the grinding wheel hanger (1) is formed in each fixing groove arm (8),
the two fixed slot arms (8) are symmetrically arranged on the bottom plate (7), and the through slots in the two fixed slot arms (8) are aligned.
7. The large grinding roll grinding wheel changing sling according to claim 6, wherein: the height of the fixed slot arm (8) is smaller than that of the grinding wheel lifting appliance (1), and the difference value of the height of the fixed slot arm and the height of the grinding wheel lifting appliance is 5 mm.
8. The large grinding roll grinding wheel changing sling according to claim 6, wherein: the distance between the opposite sides of the two fixed groove arms (8) is larger than the width of the grinding wheel hanger (1), and the difference value of the two fixed groove arms is 5 mm.
9. The large grinding roll grinding wheel changing sling according to claim 6, wherein: and a positioning bolt hole (9) is formed in the bottom plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121451946.1U CN215924132U (en) | 2021-06-29 | 2021-06-29 | Large-scale grinding roller grinding wheel replacing lifting appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121451946.1U CN215924132U (en) | 2021-06-29 | 2021-06-29 | Large-scale grinding roller grinding wheel replacing lifting appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215924132U true CN215924132U (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121451946.1U Active CN215924132U (en) | 2021-06-29 | 2021-06-29 | Large-scale grinding roller grinding wheel replacing lifting appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215924132U (en) |
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2021
- 2021-06-29 CN CN202121451946.1U patent/CN215924132U/en active Active
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