CN221110721U - Saw blade locking device - Google Patents
Saw blade locking device Download PDFInfo
- Publication number
- CN221110721U CN221110721U CN202322850284.0U CN202322850284U CN221110721U CN 221110721 U CN221110721 U CN 221110721U CN 202322850284 U CN202322850284 U CN 202322850284U CN 221110721 U CN221110721 U CN 221110721U
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- Prior art keywords
- flange
- locking
- saw blade
- seat
- locking screw
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- 238000003825 pressing Methods 0.000 claims abstract description 27
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Gripping On Spindles (AREA)
Abstract
The utility model discloses a saw blade locking device, which relates to the technical field of cutting equipment, and particularly comprises a spindle flange, a pressing flange and a locking screw, wherein the pressing flange comprises an outer flange and a flange locking seat, a positioning lock is fixed at the bottom of the outer flange, the outer flange is clamped with the positioning lock through the positioning lock, and the flange locking seat is contacted with the top of the outer flange; the middle part of flange locking seat is equipped with the groove that runs through, the middle part of outer flange is fixed with the internal thread ring, locking screw and the groove threaded connection that runs through, the outer lane of locking screw bottom is fixed with the thread bush. According to the saw blade locking device, through the arrangement of the outer flange, the flange locking seat and the locking screw rod, the outer flange, the flange locking seat and the locking screw rod can form a whole, so that the steps during saw blade replacement are simplified, and the saw blade replacement efficiency is improved; under the action of the locking screw, the outer flange and the flange locking seat can press the saw blade, so that the saw blade is locked, and the saw blade is convenient to use.
Description
Technical Field
The utility model relates to the technical field of cutting equipment, in particular to a saw blade locking device.
Background
Saw blades are commonly used cutting tools that need to be secured to the power take-off shaft of the device to function properly. Through retrieving, among the prior art, a device for locking the saw bit is disclosed, as the patent of application number CN201720686096.0 discloses a saw bit locking device, including the hold-down screw, screw thread portion for dismantling the connection saw arbor is pressed down to hold-down screw one side, hold-down screw opposite side is the expansion portion of hold-down flange, the expansion portion is equipped with the compression inclined plane that contacts with the flange, the expansion portion has a plurality of expansion fluting, each expansion fluting evenly distributed around the center of expansion portion, be equipped with the adjusting part of the radial expansion size of regulation expansion portion on the expansion portion, adjusting part is including being in the backing ball of each expansion fluting juncture and a plurality of screw that adopts threaded connection and evenly distributed at the expansion portion, the head of each screw all contacts the backing ball, the axis of each screw all outwards inclines to parts such as the axis of hold-down screw. The design has high safety performance; after each screw is loosened, the screw can be manually disassembled, and the use is convenient.
When the saw blade is replaced, the compression screw and the flange are in a separated state, so that workers need to disassemble the compression screw and the flange in sequence in the saw blade replacement process, and the saw blade replacement efficiency is affected; the compression screw in the scheme is meshed with the saw shaft only through the threaded part, and the compression screw has the possibility of rotating under the action of cutting force, so that the fixing reliability of the saw blade is affected; based on the above, the application provides a saw blade locking device.
Disclosure of utility model
The utility model provides a saw blade locking device, which solves the problem that in the saw blade replacement process proposed in the background technology, workers need to disassemble and assemble a compression screw and a flange in sequence, so that the saw blade replacement efficiency is affected; in the use process of the saw blade, under the action of cutting force, the compression screw has the possibility of rotating, and the reliability of saw blade fixation is affected.
The utility model provides the following technical scheme: the saw blade locking device comprises a main shaft flange, a pressing flange and a locking screw rod with an expandable top end, wherein a saw blade is arranged between the main shaft flange and the pressing flange, and the pressing flange is in threaded connection with the locking screw rod, so that the saw blade can be replaced conveniently; when the device is used, the main shaft flange and the pressing flange are clamped into a whole through the positioning lock, after the vertical end of the locking screw is in threaded connection with the main shaft flange, the top end of the locking screw expands and presses the pressing flange for a time, so that the pressing flange tightly presses the saw blade, and the pressing screw cannot rotate under the action of cutting force in the using process of the saw blade.
The saw blade locking device comprises a main shaft flange, a pressing flange and a locking screw, wherein an angular contact bearing is arranged at the top end of the vertical end of the main shaft flange, a ball bearing is arranged at the bottom end of the vertical end of the main shaft flange, shaft seats are arranged on the outer rings of the angular contact bearing and the ball bearing, a belt pulley is fixed at the bottom of the main shaft flange, and a fixing groove is formed in the middle of the top of the horizontal end of the main shaft flange;
the pressing flange comprises an outer flange and a flange locking seat, a positioning lock is fixed at the bottom of the outer flange, the outer flange is clamped with the positioning lock through the positioning lock, and the flange locking seat is contacted with the top of the outer flange; the middle part of the flange locking seat is provided with a through groove, and the middle part of the outer flange is fixedly provided with an internal thread ring;
the locking screw is in threaded connection with the through groove, a thread bush is fixed on the outer ring at the bottom end of the locking screw, and the thread bush is in threaded connection with the inner cavity of the fixed groove and the inner cavity of the internal thread ring.
Preferably, dustproof grooves are arranged between the belt pulley and the bottom of the shaft seat and between the top of the shaft seat and the bottom of the horizontal end of the main shaft flange.
Preferably, the outer surface of the flange locking seat and the outer surface of the top end of the locking screw are provided with anti-skid knurls.
Preferably, a positioning groove is formed in one side of the horizontal end top of the main shaft flange, and the positioning lock is clamped with an inner cavity of the positioning groove.
Preferably, the external thread screw direction arranged at the vertical end of the locking screw rod is opposite to the external thread screw direction arranged on the outer surface of the thread sleeve.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the saw blade locking device, through the arrangement of the outer flange, the flange locking seat and the locking screw rod, the outer flange, the flange locking seat and the locking screw rod can form a whole, so that the steps during saw blade replacement are simplified, and the saw blade replacement efficiency is improved; under the action of the locking screw, the outer flange and the flange locking seat can press the saw blade, so that the saw blade is locked, and the saw blade is convenient to use.
2. According to the saw blade locking device, through the arrangement of the locking screw, the threaded sleeve and the positioning lock, the spindle flange and the outer flange can form a whole, the locking screw cannot rotate under the action of cutting force, and the reliability of saw blade fixation is guaranteed.
Drawings
FIG. 1 is a schematic representation of an embodiment of the present utility model;
FIG. 2 is a schematic front view of FIG. 1 in accordance with the present utility model;
FIG. 3 is a schematic cross-sectional view of a blade locking device according to the present utility model;
FIG. 4 is an enlarged schematic view of FIG. 3;
Fig. 5 is a schematic cross-sectional view of a locking screw.
In the figure: 1. a spindle flange; 2. an outer flange; 3. a flange locking seat; 4. locking the screw rod; 5. a shaft seat; 6. a belt pulley; 7. a ball bearing; 8. a nut; 9. a hoop; 10. a contact bearing; 11. a dust-proof groove; 12. a positioning lock; 13. a fixing groove; 14. a through groove; 15. a driving turntable; 16. a thread sleeve; 18. a fixed rod; 19. a saw blade; 20. a motor; 21. an internally threaded ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a saw blade locking device, which comprises a main shaft flange 1, a pressing flange and a locking screw 4; when the device is used, the saw blade is placed between the main shaft flange 1 and the pressing flange, the main shaft flange 1 and the pressing flange can be fixed together by utilizing the locking screw 4, the locking of the saw blade is realized, the pressing surface of the locking screw 4, which is in contact with the pressing flange, is an inclined surface and plays a role in dispersion force, the locking screw 4 in the utility model is the prior art, and the structure of the locking screw 4 is the same as that of the pressing screw disclosed in the patent with the application number of CN201720686096.0, and the repeated description is omitted.
The top of the vertical end of the main shaft flange 1 is provided with an angular contact bearing 10, the angular contact bearing 10 is fastened through a nut 8, the bottom of the vertical end of the main shaft flange 1 is provided with a ball bearing 7, the outer rings of the angular contact bearing 10 and the ball bearing 7 are provided with shaft seats 5, under the action of the angular contact bearing 10 and the ball bearing 7, the shaft seats 5 and the main shaft flange 1 can generate relative motion, and the shaft seats 5 are utilized to facilitate the fixation of the main shaft flange 1.
The bottom of the vertical end of the main shaft flange 1 is fixed with the belt pulley 6, and dustproof grooves 11 are formed between the belt pulley 6 and the bottom of the shaft seat 5 and between the top of the shaft seat 5 and the bottom of the horizontal end of the main shaft flange 1, the dustproof grooves 11 can realize the dustproof function, and the influence of dust on the angle contact bearing 10 and the ball bearing 7 is reduced.
One side at the top of the horizontal end of the main shaft flange 1 is provided with a positioning groove, one side at the bottom of the pressing flange is provided with a positioning lock 12, and when the device is used, the positioning lock 12 is clamped with the positioning groove, and the main shaft flange 1 and the pressing flange form a whole.
The middle part at the top of the horizontal end of the main shaft flange 1 is provided with a fixed groove 13, and the inner wall of the fixed groove 13 is provided with internal threads.
The pressing flange comprises an outer flange 2 and a flange locking seat 3, a positioning lock 12 is fixedly connected with the bottom of the outer flange 2, the middle part of the top of the outer flange 2 is movably connected with the flange locking seat 3, a through groove 14 is formed in the middle of the flange locking seat 3, the through groove 14 can be divided into three parts from top to bottom, the upper part of the through groove 14 is in a conical shape, the inclination angle of the upper part of the through groove 14 is different from that of a locking surface of a locking screw 4, the locking screw 4 is convenient to expand, the lower part of the through groove 14 is in a cylindrical shape, the upper part and the lower part of the through groove 14 are both in a movable connection state with the locking screw 4, an internal thread matched with the vertical end of the locking screw 4 is arranged between the upper part and the lower part of the through groove 14, and the locking screw 4 and the flange locking seat 3 can be in a threaded connection state; and when the expansion part at the top end of the locking screw 4 is tightly attached to the upper part of the through groove 14, the locking screw 4 can press the outer flange 2 through the flange locking seat 3, so that the outer flange 2 can firmly press the saw blade, and the flange locking seat 3 can firmly press the outer flange 2, thereby avoiding the movement of the flange locking seat 3.
The outer ring at the bottom end of the locking screw 4 is fixedly provided with a thread bush 16, the thread bush 16 is in threaded connection with the inner cavity of the fixed groove 13, and when the thread bush 16 is in threaded connection with the fixed groove 13, the flange locking seat 3 and the main shaft flange 1 can be fixed together, so that the pressing flange and the main shaft flange 1 are firmly fixed together.
An inner threaded ring 21 is fixed in the middle of the outer flange 2, and the threaded sleeve 16 is in threaded connection with the inner threaded ring 21. When the device works, the distance between the internal thread ring 21 and the internal thread is smaller than the height value of the thread sleeve 16, the thread sleeve 16 is in contact with the top of the lower part of the penetrating groove 14 after the thread sleeve 16 is completely separated from the fixed groove 13, and the penetrating groove 14 can play a role in positioning the thread sleeve 16, so that after the locking screw 4 is separated from the main shaft flange 1, a worker can timely pull the flange locking seat 3 to move upwards, and because the internal thread ring 21 is in threaded connection with the thread sleeve 16, the external flange 2 can move upwards along with the locking screw 4, namely, the pressing flange can be separated from the saw blade.
As can be seen from the above description, the pressing flange and the locking screw 4 for pressing the saw blade in the device form an integral part through the internal thread ring 21 and the thread bush 16, so that all structures in the integral part can be moved at the same time when the saw blade is replaced, and the saw blade replacing efficiency can be effectively improved. And the spindle flange 1 and the pressing flange in the device cannot generate relative movement, so that the rotation of the locking screw 4 is avoided, and the reliability of saw blade fixation is ensured.
The outer surface of the flange locking seat 3 and the outer surface of the top end of the locking screw 4 are respectively provided with anti-slip knurls, so that the flange locking seat 3 and the locking screw 4 can rotate conveniently. And the external screw thread screw direction that the vertical end of locking screw rod set up is opposite with the screw direction of the external screw thread that the thread bush surface set up, so set up, when locking screw rod 4 and fixed slot 13 separation, locking screw rod 4 can be in the same place with flange locking seat 3 firmly.
The present application will be described in detail below with reference to one embodiment of the present application. In this embodiment, the saw blade is connected to the motor 20 through the locking device, and in this embodiment, the driving turntable 15 is fixed on the outer ring of the output shaft of the motor 20; a fixed rod 18 is fixed on the outer surface of the shaft seat 5, a supporting rod is fixed at the other end of the fixed rod 18 through a hoop 9, one end of the supporting rod is in a movable connection state with an output shaft of the motor 20, and the other end of the supporting rod is fixed at a proper position; the belt pulley 6 is connected with the driving turntable 15 through a belt transmission. When the motor 20 rotates, the motor 20 drives the driving turntable 15 to rotate, the driving turntable 15 drives the belt pulley 6 to rotate through the belt, the belt pulley 6 drives the spindle flange 1 to rotate, the spindle flange 1 drives the saw blade 19 to rotate, and the saw blade 19 can work.
The steps of installing the saw blade 19 are: the staff puts the saw bit 19 on main shaft flange 1, and the user rotates flange locking seat 3 after 2 and main shaft flange 1 joint of outer flange, and flange locking seat 3 drives the locking screw 4 rotatory with its threaded connection, and locking screw 4 screws up the back with main shaft flange 1, and the staff adjusts the fastening screw on the locking screw 4, makes the expansion portion on locking screw 4 top closely laminate with flange locking seat 3, realizes the locking of saw bit.
The steps of detaching the saw blade 19 are: the staff unscrews the fastening screw on the locking screw 4, releases the restriction of the locking screw 4 to the flange locking seat 3, and after the flange locking seat 3 drives the locking screw 4 to be separated from the main shaft flange 1, the staff pulls the flange locking seat 3 upwards, at this moment, because the threaded sleeve 16 is in threaded connection with the internal thread ring 21, the locking screw 4 can drive the external flange 2 to move upwards together, and the pressing flange is separated from the saw blade, so that the replacement of the saw blade can be realized.
Standard parts used in the present utility model can be purchased from the market, the special-shaped parts can be customized according to the descriptions of the specification and the drawings, the specific connection modes of the parts are conventional means such as bolts, rivets, welding and the like which are mature in the prior art, and the machines, the parts and the equipment are conventional models in the prior art, so that details which are not described in detail in the specification belong to the prior art which is well known to the person skilled in the art, and although the embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a saw bit locking device, includes spindle flange (1), presses flange and locking screw rod (4), its characterized in that: the top of the vertical end of the main shaft flange (1) is provided with an angular contact bearing (10), the bottom of the vertical end of the main shaft flange (1) is provided with a ball bearing (7), the outer rings of the angular contact bearing (10) and the ball bearing (7) are provided with shaft seats (5), the bottom of the main shaft flange (1) is fixedly provided with a belt pulley (6), and the middle of the top of the horizontal end of the main shaft flange (1) is provided with a fixing groove (13);
The pressing flange comprises an outer flange (2) and a flange locking seat (3), a positioning lock (12) is fixed at the bottom of the outer flange (2), the outer flange (2) is connected with the positioning lock (12) in a clamping mode through the positioning lock (12), the outer flange (2) is in contact with the top of the flange locking seat (3), a penetrating groove (14) is formed in the middle of the flange locking seat (3), and an inner thread ring (21) is arranged in the middle of the outer flange (2);
The locking screw (4) is in threaded connection with the penetrating groove (14), a thread bush (16) is fixed on the outer ring at the bottom end of the locking screw (4), the thread bush (16) is in threaded connection with the inner cavity of the fixing groove (13), and the thread bush (16) is in threaded connection with the inner wall of the inner thread ring.
2. A blade locking device as in claim 1, wherein: dustproof grooves (11) are formed between the belt pulley (6) and the bottom of the shaft seat (5) and between the top of the shaft seat (5) and the bottom of the horizontal end of the main shaft flange (1).
3. A blade locking device as in claim 1, wherein: the outer surface of the flange locking seat (3) and the outer surface of the top end of the locking screw rod (4) are both provided with anti-skid knurls.
4. A blade locking device as in claim 1, wherein: and one side of the top of the horizontal end of the main shaft flange (1) is provided with a positioning groove, and the positioning lock (12) is clamped with the inner cavity of the positioning groove.
5. A blade locking device as in claim 1, wherein: the external thread screw direction arranged at the vertical end of the locking screw rod (4) is opposite to the external thread screw direction arranged on the outer surface of the thread sleeve (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322850284.0U CN221110721U (en) | 2023-10-24 | 2023-10-24 | Saw blade locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322850284.0U CN221110721U (en) | 2023-10-24 | 2023-10-24 | Saw blade locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221110721U true CN221110721U (en) | 2024-06-11 |
Family
ID=91338967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322850284.0U Active CN221110721U (en) | 2023-10-24 | 2023-10-24 | Saw blade locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221110721U (en) |
-
2023
- 2023-10-24 CN CN202322850284.0U patent/CN221110721U/en active Active
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