CN114683422A - Main guide wheel with reduced deformation - Google Patents
Main guide wheel with reduced deformation Download PDFInfo
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- CN114683422A CN114683422A CN202210406671.2A CN202210406671A CN114683422A CN 114683422 A CN114683422 A CN 114683422A CN 202210406671 A CN202210406671 A CN 202210406671A CN 114683422 A CN114683422 A CN 114683422A
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- guide wheel
- rod
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- pretension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/04—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by tools other than rotary type, e.g. reciprocating tools
- B28D5/045—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by tools other than rotary type, e.g. reciprocating tools by cutting with wires or closed-loop blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/0058—Accessories specially adapted for use with machines for fine working of gems, jewels, crystals, e.g. of semiconductor material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/0058—Accessories specially adapted for use with machines for fine working of gems, jewels, crystals, e.g. of semiconductor material
- B28D5/0076—Accessories specially adapted for use with machines for fine working of gems, jewels, crystals, e.g. of semiconductor material for removing dust, e.g. by spraying liquids; for lubricating, cooling or cleaning tool or work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention relates to the field of multi-wire cutting machines, in particular to a main guide wheel capable of reducing deformation. Including guide pulley body and reinforcing subassembly, the inside of guide pulley body is equipped with axial extension's well kenozooecium, the guide pulley body sets firmly to being close to the convex pretension portion of the central axis direction in the intermediate position of well kenozooecium, pretension portion middle part is equipped with along the cavity pretension hole of axial extension, the reinforcing subassembly is including first part and the second part that can be mutually to the lock, the biggest external diameter of two centre gripping heads all is greater than the internal diameter in cavity pretension hole and can divide the axial both ends of roof pressure at pretension portion, the cavity pretension hole that the lock portion can pass pretension portion middle part of first part and second part carries out the counterpoint lock, and press from both ends face of tight pretension portion through two centre gripping heads after to the lock, thereby apply axial pretightening force to pretension portion. The invention not only can resist deformation, but also can reduce the manufacturing materials of the guide wheel and reduce the weight of the guide wheel, and is suitable for manufacturing the large-size guide wheel required by cutting large-size plates.
Description
Technical Field
The invention relates to the field of multi-wire cutting machines, in particular to a main guide wheel capable of reducing deformation.
Background
The diamond wire is a cutting tool manufactured by electroplating diamond on the outer layer of a metal steel wire, the diamond wire is widely applied to the industries of cutting photovoltaic silicon wafers, sapphires, graphite, magnetic materials and the like at present, all processing objects in the field of diamond wire cutting which is popularized are artificial materials, the materials are uniform, the specifications are uniform, the sizes are small, the length, the width and the height of a cutting object are generally smaller than 500mm, 500mm and 300mm, the sectional area of a cut finished product is smaller than 300mm, the diameters of commonly used diamond wires are 0.03-0.2mm and different, the working tensions of the diamond wires with different wire diameters are 3-30N and the cutting stroke is generally smaller than 400 mm. The diameter of the main roller of the existing multi-wire cutting machine of different types is smaller (the diameter is different from 100mm to 200 mm), the length is shorter (400 mm and 900 mm), the outer diameter of the winding wheel is smaller than 250mm, and the diameter of the small wire passing wheel is smaller than 150 mm.
The traditional stone cutting is generally carried out by adopting materials with alloy tool bits such as saw blades, rope saws, band saws and the like, the hard alloy has certain thickness, so that unequal saw gaps of 3-10mm can be formed in the process of cutting the stone by the traditional tool, and the hard alloy tool is in rigid contact with the stone in the processing process and vibrates greatly, so that the stone is easy to break in the processing process, and the plate with the thickness of more than 10mm can be generally processed. And diamond wire and stone material flexible contact do not have instantaneous impact load, and the vibrations noise is little low, and the small cutting kerf of line footpath is not more than 1mm moreover, not only can improve the yield greatly, can directly process out the sheet metal that thickness is less than 5mm moreover on the raw materials and can not make the stone material take place the breakage in the cutting process. However, the naturally-mined stone has many special features, firstly, the sizes of the stone raw materials are not uniform, the sizes are generally large, the weight is also large, generally, one raw material exceeds 20 tons, the length, the width and the height can exceed 3000mm 2000mm, and the cross section of the processed stone large plate can reach 3000mm 2000 mm. And the Mohs hardness of the stone is different from 2 to 9 grades, the hardness difference of different varieties is very large, even if the materials of different positions of the same block of rough material are different, and in addition, the natural stone is provided with cracks and holes, the materials are very complicated, so that the phenomenon of wire breakage is very easy to occur when diamond wire cutting is adopted for cutting the stone. In case the broken string appears, diamond wire cutting kerf is very little, can be because internal stress produces the deformation or because of the tension of cooling water leads to the stone material absorption together after the stone material cutting, thereby will lead to the stone material to carry out the wiring cutting again and make and cut half of the stone material and scrap and cause the loss. When the diamond wire is used for cutting stone and a good effect is achieved, the wire breakage rate of the diamond wire in the cutting process needs to be reduced by adopting a larger wire diameter, and the tensioning of the diamond wire needs to be guaranteed by matching with a larger tension force at the same time. Meanwhile, a stone block weighs twenty-three tons, a plate with the weight of more than 500 square is produced by one-time processing, the stone has strong abrasiveness, the wire consumption per unit area of a diamond wire for cutting a knife is far larger than that of other small-sized artificial materials, and therefore, a reel with large wire storage capacity is used for processing a large block of stone block at one time. Meanwhile, the span between the large-size rough material main rollers exceeds 2000mm, the accumulated heat caused by friction and heating in the cutting process is difficult to dissipate, and meanwhile, stone powder is difficult to discharge, so that a larger amount of cooling water is needed to cool diamond wires and wash cut objects out of the cut objects, and the cooling water and the stone powder with pressure formed in the high-speed cutting process can also meet higher requirements on the waterproof performance of the bearing box.
In the field of stone processing, the length, width and height of a rough stone are much larger than 3000 x 2000mm, the cutting sectional area exceeds 3000 x 2000mm, and only a cutting net surface can contact with an object to be cut during diamond wire cutting, so that the optimal structure is that a parallel four-roller structure is adopted to form the cutting net surface. Meanwhile, the diameter of the diamond wire suitable for stone machining is more than 0.3mm, the working tension of the diamond wire is more than 60N, and the main roller bears huge radial force, so that the size of the main roller suitable for stone machining industry is far larger than that of rollers in other fields, the length of the main roller is more than 1000mm, and the diameter of the main roller is more than 220 mm. The large-size main roller has the problems that the driving mechanism for driving the large-size main roller to rotate consumes large power due to large weight and is easy to deform due to large span.
The invention patent of China with the application number of 201811265099.2 discloses a four-roller spindle device of a multi-wire cutting machine, which is mainly used for cutting silicon wafers and comprises a spindle system, a material receiving box assembly and a nozzle assembly, wherein the spindle system and the nozzle assembly are installed on a cutting chamber of the multi-wire cutting machine, the spindle system comprises 2 groups of main roller assemblies, 2 sets of auxiliary roller assemblies, a front installation support and a rear installation support, the 2 groups of main roller assemblies are symmetrically installed on the front installation support and the rear installation support, the 2 sets of auxiliary roller assemblies are symmetrically installed on the front installation support and the rear installation support and are positioned in the middle of the 2 groups of main roller assemblies, and the material receiving box assembly is installed in limiting grooves of the front installation support and the rear installation support and is positioned in the middle of the 2 sets of auxiliary roller assemblies; the main roller component comprises a rotary water cooling device, a driven bearing box, a main roller, a driving bearing box and a hollow locking screw rod, the rotary water cooling device is fixedly connected with the driven bearing box, the hollow locking screw rod locks the driven bearing box, the main roller and the driving bearing box to be connected, the rotary water cooling device comprises a rotary water cooling bearing seat, a gland, a bearing I, a rotary locking sleeve, a sealing ring I, a sealing ring II and a sealing ring III, the rotary water cooling bearing seat is fixedly connected with the bearing seat of the driven bearing box, the rotary locking sleeve is screwed into the hollow locking screw rod to tightly connect the driven bearing box and the driving bearing box, the bearings I are two, one is arranged between the rotary water cooling bearing seat and the bearing seat of the driven bearing box and is connected with the rotary locking sleeve in an assembling way, one end part arranged on the rotary water cooling bearing seat is pressed by the gland and is connected with the rotary locking sleeve in an assembling way, the middle through and bypass structure of the rotary locking sleeve is respectively communicated with the water outlet end and the water inlet end of the rotary water-cooling bearing seat and is partitioned by a sealing ring I, a sealing ring II and a sealing ring III to form a water inlet channel and a water outlet channel, cooling water enters the inner cavity of the main roller through the water inlet channel of the rotary water-cooling device and a gap between the outer wall of the hollow locking screw and the inner wall of the driven bearing box, enters the hollow core part of the hollow locking screw through a through hole at the tail end of the hollow locking screw and then enters the water outlet channel of the rotary water-cooling device to form an internal circulation water-cooling loop; the secondary roller component comprises a secondary roller, a bearing seat I, a bearing II, a locking nut I, a sealing cover I, a bearing seat II, a bearing III, a locking nut II, a sealing cover II, a mounting rack, an adjusting screw rod and a nut, wherein the bearing II is connected with the bearing seat I through the bearing II, one end of the secondary roller is fixed by the locking nut I and sealed by the sealing cover I, the other end of the secondary roller is connected with the bearing seat II through the bearing III and sealed by the locking nut II, the bearing seat I and the bearing seat II are installed on the mounting rack, and the height and the nut are fixed through the adjusting screw rod.
The four-roller spindle device of the multi-wire cutting machine has the following defects: the bearing box comprises a driving bearing box body, a driven bearing box body and a main shaft b1, wherein the driving bearing box body and the driven bearing box body are exposed at the outer sides of the two axial ends of the main guide wheel, so that a connecting gap d between a front cover end cover of the bearing box body and the main shaft b1 is directly exposed outside, namely, cooling liquid can be directly sprayed at a seam, and water, steam, dust and the like easily enter the bearing box body through the gap to easily cause bearing failure. And secondly, the middle part of the main shaft is not provided with a reinforcing structure, the main guide wheel is easy to bend and deform after being stressed by radial force, especially under the condition that the length of the guide wheel is longer, for example, the length of the guide wheel exceeds 1000mm, the guide wheel is easy to bend and deform after being stressed, and when a workpiece with larger size needs to be cut, for example, under the condition that a longer guide wheel needs to be used when stone is cut, the structure is easier to deform and cannot adapt to the cutting of the stone.
Disclosure of Invention
The invention aims to: the main guide wheel with reduced deformation can resist deformation, reduce the material consumption for making the guide wheel, reduce the weight of the guide wheel, and is suitable for making large-size (large outer diameter and large axial length) guide wheels required for cutting large-size plates.
The invention is realized by the following technical scheme: a main guide wheel reducing deformation is characterized in that: the guide wheel body is provided with a hollow part extending axially, the middle position of the hollow part of the guide wheel body is fixedly provided with a pre-tightening part protruding towards the direction of the central axis, the middle part of the pre-tightening part is provided with a hollow pre-tightening hole extending axially, the reinforcing assembly comprises a first part and a second part which can be mutually locked, the first part and the second part are respectively provided with a clamping head and a locking part fixedly connected with the clamping head, the maximum outer diameters of the two clamping heads are larger than the inner diameter of the hollow pre-tightening hole and can be respectively provided with jacking pressure at the two axial ends of the pre-tightening part, the locking parts of the first part and the second part can penetrate through the hollow pre-tightening hole in the middle part of the pre-tightening part to lock, and the two end faces of the pre-tightening part are clamped through the two clamping heads after locking, so that the axial pre-tightening force is applied to the pre-tightening part.
Furthermore, the axial pretightening force of the two clamping heads is adjustable.
Further, the locking portion of first part comprises the outer body of rod of wearing to establish in the hole is fastened in advance to cavity, and the holding head of first part is fixed in the axial outer end of the outer body of rod, the inside of the outer body of rod is equipped with along its axially extended internal thread hole, the locking portion of second part comprises interior body of rod, the axial outer end of the body of rod including the holding head of second part is fixed, be equipped with the external screw thread on the periphery wall of the interior body of rod and fix with the internal thread jogged joint of the outer body of rod, the inside of the outer body of rod and the interior body of rod all is equipped with the through-hole that is used for following axially extended the pull rod of wearing to establish.
Furthermore, the peripheral walls of the two clamping heads are circular, and inner polygonal holes for facilitating the screwing of the inserting and screwing tool are further formed in the middle of the outer ends of the two clamping heads.
Furthermore, the end walls of the two axial ends of the pre-tightening part are respectively provided with a first circular truncated cone conical surface with the inner diameter gradually decreasing from outside to inside, and one end surface of the clamping head close to the pre-tightening part is provided with a conical convex part which can extend into the circular truncated cone conical surface and is matched and positioned with the circular truncated cone conical surface.
Furthermore, the centering plugs for connecting the main bearing box or the auxiliary bearing box are coaxially and fixedly arranged in the two axial ends of the hollow part, the accommodating cavities are preset at the axially outer sides of the two centering plugs of the guide wheel body, one axial end of each of the main bearing box and the auxiliary bearing box can be partially plugged in the two corresponding accommodating cavities, and connecting gaps at the relative movement positions between the main shaft of the main bearing box and the main shaft of the auxiliary bearing box and the front side end covers close to the centering plugs are respectively hidden in the two accommodating cavities.
Furthermore, the inner peripheral wall of the accommodating cavity is a second circular truncated cone conical surface with the inner diameter gradually decreasing from outside to inside.
Because the main guide wheel is subjected to large radial force of the diamond wires, the main guide wheel is easy to bend and deform, and in order to reduce the deformation of the guide wheel, a traditional method is to adopt a material with higher strength or increase the wall thickness of the material, so that the weight and the material of the main guide wheel are increased, and the weight of the guide wheel is increased. If the rotating speed and the acceleration under the same condition are met, a motor with higher power is needed to be used, and the power consumption and the cost are greatly increased.
Drawings
FIG. 1 is a schematic view of a multi-line cutting operation;
FIG. 2 is a schematic illustration of an installation of an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of the present invention;
FIG. 4 is an enlarged view of A in FIG. 3;
FIG. 5 is a schematic view of the internal structure of the embodiment of the present invention 1;
FIG. 6 is an assembly schematic of an embodiment of the present invention;
FIG. 7 is a schematic structural view of a reinforcement assembly in an embodiment of the present invention;
FIG. 8 is a schematic view of the internal structure of the main bearing housing in the embodiment of the present invention;
fig. 9 is a schematic view of the internal structure of the embodiment of the present invention 2.
Description of reference numerals: 1-guide wheel body, 11-hollow part, 12-pretightening part, 121-first circular truncated cone surface, 122-first circular truncated cone surface, 13-accommodating cavity, 131-second circular truncated cone surface, 14-accommodating cavity, 141-second circular truncated cone surface, 15-wire groove, 2-reinforcing component, 21-first component, 211-clamping head, 212-outer rod body, 213-through hole, 214-inner polygonal hole, 215-conical convex part, 22-second component, 221-clamping head, 222-inner rod body, 223-through hole, 224-inner polygonal hole, 225-conical convex part, 3-centering plug, 4-centering plug, 5-main guide wheel, a-pull rod, b-main bearing box, b 1-main shaft, b 2-shell, b 3-front end cover, b 4-rear end cover, b 5-bearing, c-auxiliary bearing box, d-connecting gap, e-frame, f-diamond wire, g-driving motor, h-stone.
Detailed Description
The invention is described in detail below with reference to the following description of the drawings:
the embodiment relates to a main guide wheel for reducing deformation, as shown in fig. 1-2, the main guide wheel 5 is arranged on a rack e and used for forming a cutting assembly of a multi-wire cutting machine, as an optimal mode, four parallel main guide wheels 5 are arranged and used for winding diamond wires f, and a cutting mesh surface for cutting stone materials h is formed between the two main guide wheels 5 at the lower part.
As shown in fig. 3-7, specifically, the main package wheel includes a guide wheel body 1 and a reinforcing assembly 2, the guide wheel body 1 is provided with an axially extending hollow portion 11, the guide wheel body 1 is fixedly provided with a pre-tightening portion 12 protruding toward a central axis at a middle position of the hollow portion 11, a hollow pre-tightening hole extending in the axial direction is provided at a middle portion of the pre-tightening portion 12, the reinforcing assembly 2 includes a first member 21 and a second member 22 capable of mutually locking, the first member 21 and the second member 22 are respectively provided with a clamping head 211,221 and a locking portion 212, 222 fixedly connected with the clamping head 211,221, the maximum outer diameter of the two clamping heads 211,221 is larger than the inner diameter of the hollow pre-tightening hole and can be respectively pressed against both axial ends of the pre-tightening portion 12, the locking portions 212, 222 of the first member 21 and the second member 22 can pass through the hollow pre-tightening hole at the middle portion 12 for locking, and clamp both end faces of the pre-tightening portion 12 through the two clamping heads 211,221 after locking, thereby applying an axial pretension to pretensioning portion 12. As shown in fig. 4, the guide wheel body 1 has a plurality of wire grooves 15 axially spaced around its outer circumference for winding a diamond wire f.
The main guide wheel that reduces deformation sets up pretension portion in this internal setting of guide pulley, sets up two pretension heads at the both ends of pretension portion, and first part and second part are to locking the back, and axial pretightning force is applyed to pretension portion to two centre gripping heads, when the main guide wheel is receiving radial force to produce bending deformation, just must overcome the axial force of applying earlier, just so can play the effect that reduces main guide wheel bending deformation, and can alleviate guide wheel weight, reduce the manufacturing cost of guide wheel and reduce the power consumption of guide wheel when using.
Further, the axial pretension of the two clamping heads 211,221 is adjustable.
Preferably, as shown in fig. 6 to 7, the locking portion 212 of the first member 21 is formed by an outer rod 212 inserted into a hollow pre-tightening hole, the clamping head 211 of the first member 21 is fixed to an axially outer end of the outer rod 212, an inner threaded hole extending in an axial direction of the outer rod 212 is formed inside the outer rod 212, the locking portion 222 of the second member 22 is formed by an inner rod 222, the clamping head 221 of the second member 22 is fixed to an axially outer end of the inner rod 222, an outer thread is formed on an outer peripheral wall of the inner rod 222 and is connected and fixed to the inner threaded hole of the outer rod 212, and through holes 213,223 for inserting the tie bars a extending in the axial direction are formed inside the outer rod 212 and the inner rod 222.
As shown in FIGS. 6-7, the outer peripheral walls of the two clamping heads 211,221 are circular, and the middle parts of the outer ends of the two clamping heads 211,221 are further provided with inner polygonal holes 214,224 for facilitating the tightening of the plug-in tightening tool. The inner polygonal hole can be in various shapes such as triangle, quadrangle or hexagon. The tool with the corresponding shape is inserted into the inner polygonal hole to rotate the tool, so that the corresponding part can be driven to rotate, and the reinforcing assembly is convenient to disassemble and assemble.
As a further improvement, as shown in fig. 9, the two axial end walls of the pre-tightening part 12 are respectively provided with a first truncated cone surface 121,122 with an inner diameter gradually decreasing from outside to inside, and one end surface of the clamping head 211,221 near the pre-tightening part 12 is provided with a conical convex part 215,225 which can extend into the truncated cone surface and is matched with the truncated cone surface for positioning. Because the two axial end parts of the pre-tightening part 12 are provided with the truncated cone surfaces, the conical convex parts of the two clamping heads can play a role in positioning the central axis in the locking process, and the conical convex parts not only have axial pre-tightening force, but also can generate a radial component force to partially offset the radial force borne by the main guide wheel in the working process, thereby further improving the anti-deformation capability.
The main bearing box b mainly comprises a main shaft b1, a housing b2, a bearing b5 arranged between the main shaft b1 and the housing b2, a front end cover b3 and a rear end cover b4 for sealing the front side and the rear side of the housing b2, wherein the front side is the side of the main bearing box close to the main guide wheel, the front end cover b3, the rear end cover b4 and the housing b2 are fixed together and are mounted on a frame e, and the main shaft b1 is rotatably arranged relative to an external housing component and is driven by a driving motor g, as shown in fig. 8. Because the main shaft b1 can rotate relative to the front end cover b3, and the rotation speed of the main shaft b1 is high, the connection gap d at the relative movement position between the main shaft b1 and the front end cover b3 is difficult to form effective sealing by adopting the conventional modes such as a sealing ring, a labyrinth and the like, and the connection gap d is close to the main guide wheel, the cooling water sprayed by the spraying system directly acts on the main guide wheel, wherein the cooling water and dust directly rush into the connection gap d, so that a large amount of cooling water enters the bearing box body, and the bearing failure is easily caused.
As a further improvement, as shown in fig. 5 to 8, centering plugs 3, 4 for connecting a main bearing box b or an auxiliary bearing box c are coaxially and fixedly arranged in both axial ends of the hollow portion 11, accommodating cavities 13,14 are preset in the guide wheel body 1 at axially outer sides of both the centering plugs 3, 4, one axial ends of both the main bearing box b and the auxiliary bearing box c can be partially plugged in the two corresponding accommodating cavities 13,14, and a connecting gap d at a relative movement position between a main shaft of the main bearing box b and the auxiliary bearing box c and a front end cover close to the centering plugs 3, 4 is hidden in the two accommodating cavities 13,14 respectively. Through being equipped with in leading wheel and holding the cavity and be used for holding the bearing box for the connecting gap d of relative motion department hides wherein, can prevent like this that the cooling water from dashing directly, reduces the entering amount of cooling water, and water-proof effects is good. And the supporting point of the centering plug on the main guide wheel is closer, and the supporting point is equal to the position of 0.8 meter similar to the position of the guide wheel with 1 meter, so that the stress is better. And because the bearing box is embedded, make the cavity that holds at leading capstan both ends undercut, weight is lighter, plays the effect that alleviates guide pulley weight.
As a further improvement, the inner peripheral wall of the receiving cavity 13,14 is a second frustoconical surface 131,141 with an inner diameter gradually decreasing from outside to inside. Because the inner walls of the accommodating cavities 13 and 14 are of a conical structure, the main shaft of the bearing box, the middle pull rod a and the outer guide wheel body 1 rotate at a high speed, and cooling water can be thrown out along the inner walls of the accommodating cavities, so that a waterproof effect is achieved.
While the invention has been illustrated and described with respect to specific embodiments and alternatives thereof, it will be understood that various changes and modifications can be made without departing from the spirit and scope of the invention. It is understood, therefore, that the invention is not to be in any way limited except by the appended claims and their equivalents.
Claims (7)
1. A main guide wheel reducing deformation is characterized in that: the guide wheel structure comprises a guide wheel body (1) and a reinforcing assembly (2), wherein a hollow part (11) extending axially is arranged in the guide wheel body (1), a pre-tightening part (12) protruding towards the direction close to the central axis is fixedly arranged in the middle of the hollow part (11) of the guide wheel body (1), a hollow pre-tightening hole extending axially is formed in the middle of the pre-tightening part (12), the reinforcing assembly (2) comprises a first part (21) and a second part (22) which can be locked mutually, clamping heads (211,221) and locking parts (212 and 222) fixedly connected with the clamping heads (211,221) are arranged on the first part (21) and the second part (22), the maximum outer diameters of the two clamping heads (211,221) are larger than the inner diameter of the hollow pre-tightening hole and can be respectively pressed at the two axial ends of the pre-tightening part (12), and the locking parts (212, the locking parts (212) and the locking parts (222) of the first part (21) and the second part (22) are respectively, 222) The clamping head can penetrate through a hollow pre-tightening hole in the middle of the pre-tightening part (12) to lock, and two end faces of the pre-tightening part (12) are clamped through the two clamping heads (211,221) after locking, so that axial pre-tightening force is applied to the pre-tightening part (12).
2. A deformation reducing main guide wheel according to claim 1, characterized in that: the axial pretension of the two clamping heads (211,221) is adjustable.
3. A deformation-reducing main guide wheel according to claim 2, characterized in that: the locking portion (212) of first part (21) comprises the outer body of rod (212) of wearing to establish in the hole is pretightened to the cavity, and the axial outer end of the outer body of rod (212) is fixed in clamping head (211) of first part (21), the inside of outer body of rod (212) is equipped with the internal thread hole along its axial extension, the locking portion (222) of second part (22) comprises interior body of rod (222), and the axial outer end of body of rod (222) is fixed including clamping head (221) of second part (22), be equipped with the external screw thread on the periphery wall of interior body of rod (222) and be connected fixedly with the internal thread hole of outer body of rod (212), the inside of outer body of rod (212) and interior body of rod (222) all is equipped with through-hole (213,223) that are used for wearing to establish pull rod (a) along axial extension.
4. A primary guide wheel of reduced deformation as set forth in claim 2, characterized in that: the middle parts of the outer ends of the two clamping heads (211,221) are also provided with inner polygonal holes (214,224) for facilitating the screwing of the plug-in screwing tool.
5. A main guide wheel with reduced deformation according to any one of claims 1 to 4, characterized in that: the end walls of two axial ends of the pre-tightening part (12) are respectively provided with a first circular truncated cone conical surface (121,122) with the inner diameter gradually decreasing from outside to inside, and one end face, close to the pre-tightening part (12), of each clamping head (211,221) is provided with a conical convex part (215,225) which can extend into the circular truncated cone conical surface and is matched with the circular truncated cone conical surface for positioning.
6. A deformation reducing main guide wheel according to claim 1, characterized in that: the guide wheel body (1) is provided with accommodating cavities (13,14) in advance at the axially outer sides of the two centering plugs (3, 4), the axial ends of the main bearing box (b) and the auxiliary bearing box (c) can be partially plugged in the two corresponding accommodating cavities (13,14), and connecting gaps (d) at the relative motion positions between a main shaft of the main bearing box (b) and the auxiliary bearing box (c) and a front end cover close to the centering plugs (3, 4) are hidden in the two accommodating cavities (13,14) respectively.
7. A deformation reducing main guide wheel according to claim 6, characterized in that: the inner peripheral walls of the accommodating cavities (13,14) are second circular truncated cone surfaces (131,141) with the inner diameters gradually reduced from outside to inside.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210406671.2A CN114683422B (en) | 2022-04-18 | 2022-04-18 | Main guide wheel with reduced deformation |
| PCT/CN2022/119022 WO2023201978A1 (en) | 2022-04-18 | 2022-09-15 | Deformation reducing main guide roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210406671.2A CN114683422B (en) | 2022-04-18 | 2022-04-18 | Main guide wheel with reduced deformation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114683422A true CN114683422A (en) | 2022-07-01 |
| CN114683422B CN114683422B (en) | 2022-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210406671.2A Active CN114683422B (en) | 2022-04-18 | 2022-04-18 | Main guide wheel with reduced deformation |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114683422B (en) |
| WO (1) | WO2023201978A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023201978A1 (en) * | 2022-04-18 | 2023-10-26 | 厦门品河精密科技有限公司 | Deformation reducing main guide roller |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009083711A (en) * | 2007-10-01 | 2009-04-23 | Tokai Rika Co Ltd | Cylinder structure for pretensioner, and manufacturing method for pretensioner |
| KR20120074665A (en) * | 2010-12-28 | 2012-07-06 | 창원대학교 산학협력단 | Pre-load control device of bearing |
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| CN114683422B (en) * | 2022-04-18 | 2022-12-09 | 厦门品河精密科技有限公司 | Main guide wheel with reduced deformation |
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- 2022-09-15 WO PCT/CN2022/119022 patent/WO2023201978A1/en unknown
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| JP2009083711A (en) * | 2007-10-01 | 2009-04-23 | Tokai Rika Co Ltd | Cylinder structure for pretensioner, and manufacturing method for pretensioner |
| KR20120074665A (en) * | 2010-12-28 | 2012-07-06 | 창원대학교 산학협력단 | Pre-load control device of bearing |
| CN104552633A (en) * | 2014-12-22 | 2015-04-29 | 无锡上机数控股份有限公司 | Numerical control diamond wire sapphire squarer |
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| WO2023201978A1 (en) * | 2022-04-18 | 2023-10-26 | 厦门品河精密科技有限公司 | Deformation reducing main guide roller |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023201978A1 (en) | 2023-10-26 |
| CN114683422B (en) | 2022-12-09 |
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