CN211360881U - Saw blade locking device - Google Patents
Saw blade locking device Download PDFInfo
- Publication number
- CN211360881U CN211360881U CN201921594349.7U CN201921594349U CN211360881U CN 211360881 U CN211360881 U CN 211360881U CN 201921594349 U CN201921594349 U CN 201921594349U CN 211360881 U CN211360881 U CN 211360881U
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- Prior art keywords
- locking device
- pressure disk
- nut
- main shaft
- saw blade
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- 238000007789 sealing Methods 0.000 claims description 11
- 238000003825 pressing Methods 0.000 claims description 9
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model relates to a locking device, more specifically say, it relates to a saw bit locking device, and its technical scheme main points are: including the main shaft, the pressure disk, the through-hole has been seted up to the pressure disk, pack the main shaft into with the pressure disk through the through-hole, the main shaft is the step shaft and is equipped with the conical surface, the external screw thread has been seted up to one section of main shaft, the pressure disk centre gripping has the saw bit, one side of pressure disk is contradicted on the ladder of step shaft, the opposite side is connected with locking device, locking device is equipped with and is used for with main shaft conical surface complex taper sleeve, locking device is equipped with and is used for with the first nut of external screw thread complex, be equipped with elastomeric element between locking device's. The utility model discloses have and to guarantee the high accuracy concentricity between saw bit, pressure disk and the main shaft to solve because of the inhomogeneous problem that arouses saw bit fracture and deformation of saw bit locking force distribution, ensured stability and the security of saw bit when high-speed operation saw cuts.
Description
Technical Field
The utility model relates to a locking device, more specifically say, it relates to a saw bit locking device.
Background
The metal sawing machine is a common cutting device in bar steel rolling equipment, the installation and clamping of the saw blade at present adopt a structure of connecting and compressing by double pressure plates and bolts, and the locking mode is mechanical locking, namely, the inner pressure plate and the outer pressure plate are connected and fastened by bolts and nuts. The mechanical locking is mainly locked by the friction force of a thread pair. However, in the normal use process, a large concentricity error exists between the saw blade, the pressure plate and the rotating shaft, the problems of unreliable locking force, unrelasted locking force and easiness in loosening and deformation of threads after vibration are easily caused, the defects of saw blade cracking, deformation and the like caused by uneven distribution of clamping force of the saw blade are caused, and a lot of obstacles are brought to actual production.
The problems existing in the prior art are as follows: the concentricity error of the saw blade, the pressure plate and the rotating shaft, the locking force is unreliable and not lasting, the thread is easy to loosen and deform after vibration, and the saw blade cracks and deforms due to uneven distribution of the clamping force of the saw blade.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a saw bit locking device has the high accuracy concentricity that can guarantee between saw bit, pressure disk and the main shaft to solve because of the inhomogeneous problem that arouses saw bit fracture and deformation of saw bit locking force distribution, ensured stability and the security of saw bit when high-speed operation saw cuts. Meanwhile, the device is assembled outside the line and then used on the line, so that the labor intensity of operators is greatly reduced, and the time for replacing the saw blade is shortened.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a saw bit locking device, includes main shaft, pressure disk, the pressure disk is packed into the pressure disk based on the through-hole the main shaft, the main shaft is the step shaft and is equipped with the conical surface, keep away from on the main shaft the external screw thread has been seted up to one side of pressure disk, the pressure disk centre gripping has the saw bit, contradict in one side of pressure disk on the ladder of step shaft, the opposite side is connected with locking device, locking device be equipped with be used for with conical surface complex taper sleeve, locking device be equipped with be used for with the first nut of external screw thread fit, be equipped with elastomeric element between locking device's taper sleeve and the first nut.
Through adopting above-mentioned technical scheme, through twisting the first nut that moves locking device, make first nut extrusion elastomeric element, elastomeric element further extrudees the taper sleeve, thereby let the taper sleeve extrude the conical surface of main shaft, can utilize the conical surface to guarantee the main shaft on the one hand, concentricity between pressure disk and the saw bit, on the other hand utilizes the fixed pressure disk of the bulging force that the taper sleeve extrusion produced, utilize elastomeric element's elasticity backward extrusion first nut simultaneously, make the screw thread of first nut and the screw thread of main shaft extrude each other, guarantee through two-way extruded mode that this locking device can not become flexible easily.
In one embodiment: the first nut is provided with a first cavity, the taper sleeve is sleeved in the first cavity of the first nut, a second cavity is formed between the taper sleeve and the first nut, the elastic part is arranged in the second cavity, a moving coil is further arranged on the end face, close to the first nut, of the taper sleeve, the inner ring of the moving coil is sleeved in the outer ring of the taper sleeve, the moving coil is provided with a thread positioning hole and is locked with the taper sleeve through a second bolt, and the locking device is connected with the pressure plate through the moving coil.
Through adopting above-mentioned technical scheme, utilize first nut, taper sleeve and elastomeric element not only effectual locking effect that plays for the locking device that the main part constitutes, the concentricity between main shaft, pressure disk and the saw bit of assurance that can also be abundant.
In one embodiment: the pressure disk includes interior pressure disk and outer pressure disk, with what the main shaft ladder was contradicted is interior pressure disk, the keyway has still been seted up to the through-hole of interior pressure disk, interior pressure disk passes through the keyway is connected with the main shaft, with what locking device was connected is outer pressure disk, the round hole has been seted up to outer pressure disk, the saw bit passes through the terminal surface of T type bolt and second nut locking at outer pressure disk, interior pressure disk and outer pressure disk pass through T type bolted connection.
Through adopting above-mentioned technical scheme, utilize two pressure disk structures to lock the saw bit, utilize the ladder of main shaft to carry out axial positioning to the pressure disk simultaneously, utilize the steel key to carry out circumference location to the pressure disk.
In one embodiment: the inner pressure plate is provided with a stepped square hole, one end of the T-shaped bolt is a flat nut, the nut can penetrate through the square hole at a specific angle, and the T-shaped bolt cannot penetrate through the square hole after the angle is changed by rotating.
Through adopting above-mentioned technical scheme, when carrying out the installation operation of saw bit, press the dish dress on the main shaft earlier, then embolia the main shaft with outer pressure dish together with saw bit and locking device again, the saw bit at this moment passes through T type bolt locking, after touching interior pressure dish, loosen T type bolt, pass the square hole with the nut of T type bolt according to specific angle, then rotatory T type bolt, screw up the second nut at last, just can make interior pressure dish and outer pressure dish press from both sides the saw bit clamp, the problem of the narrow and small dismouting difficulty in space has effectively been solved to this technical scheme.
In one embodiment: the end face of the outer pressing disc connected with the locking device is provided with a wedge opening and a clamping ring, a groove is formed between the wedge opening and the end face, the moving coil on the locking device is provided with a clamping ring, and the clamping ring are mutually fastened and connected.
By adopting the technical scheme, the locking device and the outer pressing disc are connected together by utilizing the retaining ring and the retaining ring.
In one embodiment: the locking device further comprises a positioning ring, an inner ring of the positioning ring is sleeved into an outer ring of the taper sleeve and is arranged between the moving ring and the first nut, a boss is arranged on the positioning ring, the boss is embedded into a first cavity of the first nut, a bolt hole and a positioning pin hole are formed in the positioning ring, and the positioning ring is connected with the first nut through a first bolt and a positioning pin.
Through adopting above-mentioned technical scheme, utilize the holding ring to play the effect of location.
In one embodiment: a sealing groove is formed in the first nut of the locking device, and a sealing ring is arranged in the sealing groove.
Through adopting above-mentioned technical scheme, utilize the sealing washer to carry out dustproof and waterproof.
In one embodiment: and a mark U groove is formed in the bottom surface of the T-shaped bolt.
Through adopting above-mentioned technical scheme, when pressure disk and outer pressure disk in connecting, the twisting T type bolt that can be more convenient.
In one embodiment: the elastic component is a spring.
Through adopting above-mentioned technical scheme, the simple structure of spring, convenient to use and with low costs.
In one embodiment: the spring is a belleville spring.
Through adopting above-mentioned technical scheme, belleville spring can bear sufficient big pressure.
To sum up, the utility model discloses following beneficial effect has:
the high-precision concentricity among the saw blade, the pressure plate and the main shaft can be ensured through the matching of the taper sleeve and the conical surface, and the stability and the safety of the saw blade during the sawing in high-speed operation are ensured. The concentricity is ensured, and the problem of saw blade cracking and deformation caused by uneven distribution of the saw blade locking force is solved by utilizing the bidirectional locking mode of the elastic component. In addition, the locking device and the outer pressing disc can be installed and matched in advance, the labor intensity of operators is reduced, and the time for replacing the saw blade is shortened.
Drawings
FIG. 1 is a schematic view showing a saw blade locking device according to the present embodiment;
FIG. 2 is a front view of the inner platen structure in this embodiment;
FIG. 3 is a side view of the inner platen structure in this embodiment;
FIG. 4 is a front view of the outer platen structure in this embodiment;
FIG. 5 is a side view of the outer platen structure in this embodiment;
FIG. 6 is a front view of the moving coil structure in the present embodiment;
FIG. 7 is a side view of the moving coil structure in the present embodiment;
FIG. 8 is an elevation view of the positioning ring structure of the present embodiment;
FIG. 9 is a side view of the positioning ring structure of the present embodiment;
FIG. 10 is a front view of the T-bolt structure of the present embodiment;
FIG. 11 is a side view of the T-bolt construction of this embodiment;
fig. 12 is a schematic view showing a saw blade locking device according to the present embodiment.
In the figure: 1. a main shaft; 2. an inner platen; 3. an outer pressing disc; 4. a square hole; 5. a T-bolt; 6. moving coils; 7. a positioning ring; 8. a first nut; 9. a first bolt; 10. a taper sleeve; 11. an elastic member; 12. an external thread; 13. a seal ring; 14. a second bolt; 15. positioning pins; 16. a conical surface; 17. wedging; 18. a snap ring; 19. a circular hole; 20. a retaining ring; 21. a thread positioning hole; 22. a positioning pin hole; 23. bolt holes; 24. a second nut; 25. marking a U groove; 101. a saw blade; 102. and a locking device.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
The utility model provides a saw bit locking device, as shown in fig. 12, including main shaft 1, the pressure disk is based on the through-hole is packed into main shaft 1 with the pressure disk, main shaft 1 is the step shaft and is equipped with conical surface 16, external screw thread 12 has been seted up to one side of keeping away from the pressure disk on main shaft 1, the pressure disk centre gripping has saw bit 101, one side of pressure disk is contradicted on the ladder of step shaft, the opposite side is connected with locking device 102, locking device 102 is equipped with and is used for the taper sleeve 10 with conical surface 16 complex, locking device 102 is equipped with and is used for the first nut 8 with external screw thread 12 complex, be equipped with elastomeric element 11 between locking device 102.
Through adopting above-mentioned technical scheme, through twisting the first nut 8 of locking device 102, make first nut 8 extrude elastomeric element 11, elastomeric element 11 further extrudes taper sleeve 10, thereby let taper sleeve 10 extrude the conical surface 16 of main shaft 1, on the one hand can utilize conical surface 16 to guarantee the concentricity between main shaft 1, pressure disk and saw bit 101, on the other hand utilizes the expansion force fixed pressure disk that taper sleeve 10 extrusion produced, utilize the first nut 8 of the reverse extrusion of elasticity of elastomeric element 11 simultaneously, make the screw thread of first nut 8 and the screw thread of main shaft 1 extrude each other, guarantee through the mode of two-way extrusion that this locking device can not become flexible easily.
As shown in fig. 1, a first cavity is formed in a first nut 8, a taper sleeve 10 is sleeved in the first cavity of the first nut 8, a second cavity is formed between the taper sleeve 10 and the first nut 8, an elastic component 11 is arranged in the second cavity, a moving coil 6 is further arranged on the end face of the first nut 8 close to the taper sleeve 10, an inner ring of the moving coil 6 is sleeved in an outer ring of the taper sleeve 10, a thread positioning hole 21 is formed in the moving coil 6, the moving coil 6 is locked with the taper sleeve 10 through a second bolt 14, and a locking device 102 is connected with a pressure plate through the moving coil 6.
By adopting the technical scheme, the locking device 102 which is mainly composed of the first nut 8, the taper sleeve 10 and the elastic component 11 not only effectively plays a role in locking, but also can fully ensure the concentricity among the main shaft 1, the pressure plate and the saw blade 101.
As shown in fig. 2 to 5, the pressure plate includes an inner pressure plate 2 and an outer pressure plate 3, the inner pressure plate 2 is in stepped contact with the main shaft 1, a key groove is further formed in a through hole of the inner pressure plate 2, the inner pressure plate 2 is connected with the main shaft 1 through the key groove, the outer pressure plate 3 is connected with the locking device 102, a circular hole 19 is formed in the outer pressure plate 3, the saw blade 101 is locked on the end surface of the outer pressure plate 3 through a T-shaped bolt 5 and a second nut 24, and the inner pressure plate 2 is connected with the outer pressure plate 3 through the T-shaped bolt 5.
Through adopting above-mentioned technical scheme, utilize two pressure disk structures to lock saw bit 101, utilize the ladder of main shaft 1 to carry out axial positioning to the pressure disk simultaneously, utilize the steel key to carry out circumference location to the pressure disk.
As shown in fig. 2, 3, 10 and 11, the inner pressing plate 2 is formed with a stepped square hole 4, one end of the T-shaped bolt 5 is a flat nut, the nut can pass through the square hole 4 at a specific angle, and the T-shaped bolt 5 cannot pass through the square hole 4 when rotated to change the angle.
Through adopting above-mentioned technical scheme, when carrying out the installation operation of saw bit 101, adorn interior pressure disk 2 on main shaft 1 earlier, then embolia main shaft 1 with outer pressure disk 3 together with saw bit 101 and locking device 102 again, saw bit 101 at this moment passes through T type bolt 5 locking, after touching interior pressure disk 2, loosen T type bolt 5, pass square hole 4 with T type bolt 5's nut according to specific angle, then rotatory T type bolt 5, tighten second nut 24 at last, just can make interior pressure disk 2 and outer pressure disk 3 press from both sides the clamp of saw bit 101, the problem of narrow and small space dismouting difficulty has effectively been solved to this technical scheme.
As shown in fig. 4 to 7, a wedge 17 and a snap ring 18 are provided on an end surface of the outer platen 3 connected to the locking device 102, a groove is formed between the wedge 17 and the end surface, a snap ring 20 is provided on the moving coil 6 of the locking device 102, and the snap ring 20 and the snap ring 18 are fastened to each other.
By adopting the above technical solution, the locking device 102 and the outer pressure plate 3 are connected together by the retaining ring 20 and the retaining ring 18.
As shown in fig. 9 and 8, the locking device 102 further includes a positioning ring 7, an inner ring of the positioning ring 7 is sleeved into an outer ring of the taper sleeve 10 and is disposed between the moving coil 6 and the first nut 8, the positioning ring 7 is provided with a boss, the boss is embedded in a first cavity of the first nut 8, the positioning ring 7 is provided with a bolt hole 23 and a positioning pin hole 22, and the positioning ring 7 is connected with the first nut 8 through the first bolt 9 and the positioning pin 15.
Through adopting above-mentioned technical scheme, utilize holding ring 7 to play the effect of location.
The first nut 8 of the locking device 102 is provided with a sealing groove, and a sealing ring 13 is arranged in the sealing groove.
Through adopting above-mentioned technical scheme, utilize sealing washer 13 to carry out dustproof and waterproof.
The bottom surface of the T-shaped bolt 5 is provided with a mark U groove 25.
Through adopting above-mentioned technical scheme, when pressing disc 2 and outer pressure disk 3 in connecting, can be more convenient twist T type bolt 5.
The elastic member 11 is a spring.
Through adopting above-mentioned technical scheme, the simple structure of spring, convenient to use and with low costs.
The spring is a belleville spring.
Through adopting above-mentioned technical scheme, belleville spring can bear sufficient big pressure.
The implementation principle of the embodiment is as follows: external force is applied to the disc spring through the first nut 8 of the locking device, the disc spring is enabled to be compressed to generate thrust to the taper sleeve 10, then the outer pressing disc 3 is fixed through expansion force generated by the taper sleeve 10 on the conical surface 16, meanwhile, the reverse thrust acting force of the disc spring enables the nut to generate axial tension variable on the screw rod, namely the expansion force of the taper sleeve 10 on the pressing disc and the tension generated by the disc spring on the screw rod are clamping force required by the saw blade 101. The bidirectional compression mode ensures high-precision concentricity among the saw blade 101, the pressure plate and the main shaft 1, thereby solving the problems of cracking and deformation of the saw blade 101 caused by uneven distribution of the locking force of the saw blade 101 and ensuring the stability and safety of the saw blade 101 during high-speed operation sawing. Meanwhile, the device is assembled outside the line and then used on the line, so that the labor intensity of operators is greatly reduced, and the time for replacing the saw blade 101 is shortened.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A saw blade locking device is characterized in that: including main shaft, pressure disk, the pressure disk is packed into the pressure disk based on the through-hole the main shaft, the main shaft just is equipped with the conical surface for the step shaft, keep away from on the main shaft the external screw thread has been seted up to one side of pressure disk, the pressure disk centre gripping has the saw bit, one side of pressure disk is contradicted on the ladder of step shaft, the opposite side is connected with locking device, locking device be equipped with be used for with conical surface complex taper sleeve, locking device be equipped with be used for with external screw thread complex first nut, be equipped with elastomeric element between locking device's taper sleeve and the first nut.
2. A saw blade locking device as defined in claim 1, wherein: the first nut is provided with a first cavity, the taper sleeve is sleeved in the first cavity of the first nut, a second cavity is formed between the taper sleeve and the first nut, the elastic part is arranged in the second cavity, a moving coil is further arranged on the end face, close to the first nut, of the taper sleeve, the inner ring of the moving coil is sleeved in the outer ring of the taper sleeve, the moving coil is provided with a thread positioning hole and is locked with the taper sleeve through a second bolt, and the locking device is connected with the pressure plate through the moving coil.
3. A saw blade locking device as defined in claim 2, wherein: the pressure disk includes interior pressure disk and outer pressure disk, with what the main shaft ladder was contradicted is interior pressure disk, the keyway has still been seted up to the through-hole of interior pressure disk, interior pressure disk passes through the keyway is connected with the main shaft, with what locking device was connected is outer pressure disk, the round hole has been seted up to outer pressure disk, the saw bit passes through the terminal surface of T type bolt and second nut locking at outer pressure disk, interior pressure disk and outer pressure disk pass through T type bolted connection.
4. A saw blade locking device as defined in claim 3, wherein: the inner pressure plate is provided with a stepped square hole, one end of the T-shaped bolt is a flat nut, the nut can penetrate through the square hole at a specific angle, and when the T-shaped bolt rotates to change the angle, the T-shaped bolt cannot penetrate through the square hole.
5. A saw blade locking device as defined in claim 3, wherein: the end face of the outer pressing disc connected with the locking device is provided with a wedge opening and a clamping ring, a groove is formed between the wedge opening and the end face, the moving coil on the locking device is provided with a clamping ring, and the clamping ring are mutually fastened and connected.
6. A saw blade locking device as defined in claim 2, wherein: the locking device further comprises a positioning ring, an inner ring of the positioning ring is sleeved into an outer ring of the taper sleeve and is arranged between the moving ring and the first nut, a boss is arranged on the positioning ring, the boss is embedded into a first cavity of the first nut, a bolt hole and a positioning pin hole are formed in the positioning ring, and the positioning ring is connected with the first nut through a first bolt and a positioning pin.
7. A saw blade locking device as defined in claim 2, wherein: a sealing groove is formed in the first nut of the locking device, and a sealing ring is arranged in the sealing groove.
8. The saw blade locking device as set forth in claim 4, wherein: and a mark U groove is formed in the bottom surface of the T-shaped bolt.
9. A saw blade locking device as defined in claim 1, wherein: the elastic component is a spring.
10. A saw blade locking device as defined in claim 9, wherein: the spring is a belleville spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921594349.7U CN211360881U (en) | 2019-09-24 | 2019-09-24 | Saw blade locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921594349.7U CN211360881U (en) | 2019-09-24 | 2019-09-24 | Saw blade locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211360881U true CN211360881U (en) | 2020-08-28 |
Family
ID=72166159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921594349.7U Expired - Fee Related CN211360881U (en) | 2019-09-24 | 2019-09-24 | Saw blade locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211360881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535702A (en) * | 2022-04-02 | 2022-05-27 | 烟台鲁宝钢管有限责任公司 | Saw blade stabilizing device |
-
2019
- 2019-09-24 CN CN201921594349.7U patent/CN211360881U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535702A (en) * | 2022-04-02 | 2022-05-27 | 烟台鲁宝钢管有限责任公司 | Saw blade stabilizing device |
| CN114535702B (en) * | 2022-04-02 | 2023-12-05 | 烟台鲁宝钢管有限责任公司 | Saw blade stabilizing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 512199 special bar factory of Shaogang, MABA Town, Qujiang District, Shaoguan City, Guangdong Province Patentee after: Baowu jiefuyi Special Steel Co.,Ltd. Address before: MABA Shaogang, Qujiang District, Shaoguan City, Guangdong Province Patentee before: BAOSTEEL SPECIAL STEEL SHAOGUAN Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |