CN112059865B - Grinding wheel grinding machine with broken shaft power switching function and broken shaft power switching method - Google Patents
Grinding wheel grinding machine with broken shaft power switching function and broken shaft power switching method Download PDFInfo
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- CN112059865B CN112059865B CN202010994447.0A CN202010994447A CN112059865B CN 112059865 B CN112059865 B CN 112059865B CN 202010994447 A CN202010994447 A CN 202010994447A CN 112059865 B CN112059865 B CN 112059865B
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- grinding wheel
- power adapter
- stud
- main shaft
- broken
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
Abstract
The invention discloses a grinding wheel polisher with a broken shaft power switching function, which relates to the technical field of grinding wheel polishing equipment and comprises the following components: the double-end motor, adapter sleeve, endotheca, power adapter, emery wheel, double-screw bolt, nut. When the main shaft is broken, the grinding wheel is still influenced by the connecting sleeve and cannot rotate and fly out, and the power adapter can sideslip along the inner sleeve, so that the stud drives the broken part of the main shaft to be separated from the part of the main shaft which is not broken, the stud is prevented from rotating unstably, the part of the main shaft which is not broken drives the sliding block to push the power adapter to rotate, the power adapter and the part of the main shaft which is not broken synchronously rotate, and then the power is transmitted to the grinding wheel, and the grinding wheel works normally. In addition, when the grinding wheel does not work, the stud is taken down, the threaded hole at the other end of the stud is in threaded connection with the unbroken main shaft part, the grinding wheel can be enabled to recover the initial state again, the service life is prolonged, and the problems that the machining efficiency is reduced and the cost is increased are solved.
Description
Technical Field
The invention relates to the technical field of grinding wheel polishing equipment, in particular to a grinding wheel polisher with a broken shaft power switching function.
Background
The grinder is a common grinding tool for machining, and is applied to various industries, for example, in the machining process, the cutter is sharpened on the grinding wheel to restore the cutting capability because the cutter is worn and dull or the cutter is damaged and loses the cutting capability. The grinder is also used for grinding, deburring, cleaning and the like of common small parts.
The common grinding machine mainly comprises a base, a motor or other power sources, grinding wheels, a protective cover and the like, wherein the grinding wheels are installed at two ends of a grinding wheel shaft of a plurality of grinding machines and are matched with a double-end motor for use, the two ends of the double-end motor are respectively connected with two grinding wheel shafts, and the grinding wheels of different models are installed on two hand wheel shafts so as to meet different grinding requirements.
However, because the grinding wheel rotates at a high speed, the grinding wheel shaft is subjected to great torque and various stresses when rotating, if the grinding wheel shaft is accidentally broken in the using process, the grinding wheel rotating at a high speed can fly out due to inertia, thereby causing personal casualties, although the protective cover can block the flying-out of the grinding wheel to a certain extent, the protective cover is not all-around protective after all, and when the grinding wheel polisher is used, a lot of users can hold workpieces to polish, the flying-out of the grinding wheel shaft is easy to cause hand injuries when the grinding wheel shaft is broken, great potential safety hazards exist, and the grinding wheel shaft cannot be used continuously after being broken, so that the processing efficiency and the cost are influenced.
Disclosure of Invention
One of the purposes of the invention is to solve the problems of potential safety hazard, machining efficiency and cost caused by flying out of a grinding wheel when a grinding wheel spindle is broken in the prior art.
The second purpose of the invention is to provide a method for transferring the power of the broken shaft.
In order to achieve one of the purposes, the invention adopts the following technical scheme: a grinding wheel sander with a function of shaft breaking power switching comprises: the double-end motor, adapter sleeve, endotheca, power adapter, emery wheel, double-screw bolt, nut.
The double-head motor is provided with main shafts on two sides.
The connecting sleeve is arranged at two ends of the double-end motor, the connecting sleeve is coated and fixed at two ends of the double-end motor, and connecting rods penetrate through the connecting sleeve and are connected with each other through the connecting rods.
The endotheca passes through the bearing and connects the adapter sleeve, power adapter seat side have with endotheca inner wall bellying sliding connection's resistance groove, the resistance groove closely laminates the bellying, power adapter seat still has: fixed lantern ring, transfer line, slider, expanding spring.
The fixed lantern ring is fixed on the main shaft, the transmission rod is connected with the fixed lantern ring, the sliding block is connected with a sliding groove in the power adapter in a sliding mode, the transmission rod is connected with the sliding block, the telescopic spring is installed in the sliding groove and connected with the sliding block, and the grinding wheel is located at the side end of the power adapter.
The stud penetrates through the grinding wheel and the power adapter, the stud is in threaded connection with the grinding wheel and the power adapter, threaded holes are formed in two ends of the stud, the spindle penetrates into the threaded holes, and the spindle is connected with the spindle. The stud fixes the grinding wheel through the nut.
In the technical scheme, when the connecting sleeve is used, the connecting sleeve shares the torque and the shearing force of the main shaft in the rotation machining process of the main shaft, when the main shaft is broken in the machining process, the grinding wheel is still influenced by the connecting sleeve and cannot rotate and fly out, and under the inertial rotation of the power adapter, the power adapter can sideslip along the inner sleeve in the connecting sleeve, so that the stud drives the broken part of the main shaft to be separated from the part of the main shaft which is not broken, and the stud is prevented from rotating unstably.
The rotating speed of the unbroken main shaft part is greater than that of the power adapter, the fixed lantern ring on the unbroken main shaft part rotates relative to the power adapter, the fixed lantern ring drives the transmission rod to drive the sliding block to rotate along the sliding groove on the power adapter, the sliding block extrudes the telescopic spring of the sliding groove to compress, and finally the sliding block pushes the power adapter to rotate, so that the power adapter and the unbroken main shaft part synchronously rotate, power is transmitted to the grinding wheel, and the grinding wheel normally rotates.
When the grinding wheel does not work any more, the stud is taken down, the direction of the stud is changed, the other end of the stud penetrates through the grinding wheel and the power adapter again, and then the other threaded hole in the axial direction of the stud is in threaded connection with the unbroken spindle part.
Further, in the embodiment of the present invention, the length of the resistance groove is larger than that of the protrusion of the inner sleeve, and the protrusion is tightly pressed against the resistance groove.
Further, in the embodiment of the present invention, the groove depth of the sliding groove is greater than the thickness of the slider.
Further, in the embodiment of the present invention, the grinding wheel is fixedly connected to the power adapter through a bolt.
Further, in the embodiment of the invention, a sleeve is arranged between the grinding wheel and the power adapter, and the sleeve is sleeved on the stud to prevent the threaded connection of the stud from loosening.
Further, in an embodiment of the present invention, the sleeve is fixed to the stud by a fixing member.
Further, in the embodiment of the present invention, the fixing collar and the transmission rod are made of rigid materials.
Further, in the embodiment of the present invention, the fixing collar and the transmission rod are integrally formed.
Further, in the embodiment of the present invention, an impeller is disposed on the fixed collar or the piston transmission rod, the impeller has blades, an air inlet channel and an air outlet channel are disposed in the inner sleeve, the air inlet channel is located at the back of the impeller, and the air blowing channel is located at the front of the impeller.
The filter is further arranged in the inner sleeve, a filter cavity is formed in the filter, a filter screen is arranged in the filter cavity, and the filter cavity is communicated with the air inlet channel and the air suction port.
Still have the annular in the filter, the annular intercommunication give vent to anger the passageway with the gas vent, the gas vent slope sets up, the incline direction orientation of gas vent the central axis direction of induction port.
The main shaft drives the impeller to rotate synchronously when rotating, when the impeller rotates, the air sucked into the outside through the air suction port (a large amount of dust can be generated by grinding the grinding wheel) enters the filter cavity for filtration, then the air flows into the back of the impeller through the air inlet channel, so that the impeller is drawn into the air, the air flow is enhanced, on one hand, the lubricating capacity of the bearing and the power adapter is improved, the rotating friction force of the bearing and the power adapter is reduced, on the other hand, the heat dissipation of the double-head motor is promoted, the working stability of the double-head motor is ensured, and the service life is prolonged.
The air blown out by the impeller wraps heat in the annular groove of the filter along the air outlet channel, the heat is discharged from the air outlet through the annular groove, the discharged air collides with the air inlet at the moment to form an airflow screen, dust generated by grinding of the grinding wheel is blown away from the air inlet, and the stable operation of the bearing and the power adapter is ensured.
The invention has the beneficial effects that:
the invention fixes the connecting sleeves at two ends of the double-end motor, then the connecting sleeves are rotationally connected with the power adapter, the main shaft is in threaded connection with the power adapter, and after the stud penetrates through the grinding wheel and the power adapter, the axial threaded hole of the stud is in threaded connection with the main shaft. When the main shaft is broken, the grinding wheel is still influenced by the connecting sleeve and cannot rotate and fly out, and the power adapter can sideslip along the inner sleeve, so that the stud drives the broken part of the main shaft to be separated from the part of the main shaft which is not broken, the stud is prevented from rotating unstably, the part of the main shaft which is not broken drives the sliding block to push the power adapter to rotate, the power adapter and the part of the main shaft which is not broken synchronously rotate, and then the power is transmitted to the grinding wheel, and the grinding wheel works normally. In addition, when the grinding wheel does not work, the stud is taken down, the threaded hole at the other end of the stud is in threaded connection with the unbroken main shaft part, the grinding wheel can be enabled to recover the initial state again, the service life is prolonged, and the problems that the machining efficiency is reduced and the cost is increased are solved.
In order to achieve the second purpose, the invention adopts the following technical scheme: a broken shaft power switching method comprises the following steps:
the double-end motor is characterized in that the connecting sleeve is fixed with two ends of the double-end motor, a main shaft of the double-end motor is in threaded connection with the power adapter, the power adapter is in rotary connection with the connecting sleeve, the stud penetrates through the grinding wheel and the power adapter, a threaded hole in the axial direction of the stud is in threaded connection with the main shaft, and the grinding wheel, the main shaft, the power adapter and the connecting sleeve are connected in pairs to form a stable whole;
the connecting sleeve shares the torque and the shearing force of the main shaft in the rotating machining process of the main shaft, when the main shaft is broken in the machining process, the grinding wheel is still influenced by the connecting sleeve and cannot rotate and fly out, and under the inertial rotation of the power adapter, the power adapter can sideslip along the inner sleeve in the connecting sleeve, so that the stud drives the broken part of the main shaft to be separated from the part of the main shaft which is not broken, and the stud is prevented from generating unstable rotation;
the rotating speed of the unbroken spindle part is greater than that of the power adapter, a fixed lantern ring on the unbroken spindle part rotates relative to the power adapter, the fixed lantern ring drives a transmission rod to drive a sliding block to rotate along a sliding groove on the power adapter, the sliding block extrudes a telescopic spring of the sliding groove to be compressed, and finally the sliding block pushes the power adapter to rotate, so that the power adapter and the unbroken spindle part synchronously rotate, power is transmitted to a grinding wheel, and the grinding wheel normally rotates;
when the grinding wheel does not work any more, the stud is taken down, the direction of the stud is changed, the other end of the stud penetrates through the grinding wheel and the power adapter again, and then the other threaded hole in the axial direction of the stud is in threaded connection with the unbroken spindle part.
Further, in the embodiment of the invention, the grinding wheel is fixedly connected with the power adapter through the bolt, the bolt can prevent the threaded connection between the stud and the power adapter from loosening, and the bolt can share the torque and the shearing force of the grinding wheel shaft, so that the service life of the main shaft is prolonged.
Drawings
Fig. 1 is a schematic plan view of a grinding wheel sander with a function of power transmission of broken shaft according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a grinding wheel sander with a broken shaft power transfer function according to an embodiment of the present invention.
Fig. 3 is a schematic plan view of a power adapter according to an embodiment of the invention.
Fig. 4 is a schematic side view of a power adapter according to an embodiment of the invention.
Fig. 5 is a schematic diagram of the movement effect of the grinding wheel sander with a broken shaft power switching function according to the embodiment of the invention.
Fig. 6 is a schematic side movement effect diagram of the power adapter according to the embodiment of the invention.
FIG. 7 is a schematic diagram of the grinding wheel sander with a function of power switching off the spindle after the bolt direction is changed according to the embodiment of the present invention.
Fig. 8 is another schematic structural diagram of a grinding wheel sander with a broken shaft power transfer function according to an embodiment of the present invention.
Fig. 9 is a schematic plan view of an impeller according to an embodiment of the present invention.
Fig. 10 is a partially enlarged view a of fig. 8.
In the attached drawings
10. Double-headed motor 11 and spindle
20. Connecting sleeve 21, connecting rod 22 and inner sleeve
23. Bearing assembly
30. Power adapter 31, resistance groove 32, sliding groove
33. Fixed lantern ring 34, transmission rod 35 and sliding block
36. Expansion spring 37 and bolt
40. Grinding wheel
50. Stud 51, threaded hole 60, nut
70. Sleeve 71, fixing member
80. Impeller 81 and blade
221. Air inlet channel 222 and air outlet channel
90. Filter 91, filter screen 92, and air inlet
93. Ring groove 94, exhaust port
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some embodiments of the invention and are not limiting of the invention, and that all other embodiments obtained by those of ordinary skill in the art without the exercise of inventive faculty are within the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. But it is obvious. To one of ordinary skill in the art, the embodiments may be practiced without limitation to these specific details. In some instances, well-known off-axis power transfer methods and structures have not been described in detail to avoid unnecessarily obscuring the embodiments. In addition, all embodiments may be used in combination with each other.
The first embodiment is as follows:
a grinding wheel sander with a function of power switching off a shaft, as shown in fig. 1 and 2, comprising: the double-end motor 10, the connecting sleeve 20, the inner sleeve 22, the power adapter 30, the grinding wheel 40, the stud 50 and the nut 60.
The double-headed motor 10 has spindles 11 (grinding spindles in the above-described background art) on both sides.
The connecting sleeves 20 are arranged at two ends of the double-head motor 10, the connecting sleeves 20 are coated and fixed at two ends of the double-head motor 10, the connecting rods 21 penetrate through the two connecting sleeves 20, and the two connecting sleeves are connected with each other through the connecting rods 21.
The inner sleeve 22 is connected with the connecting sleeve 20 through the bearing 23, the side end of the power adapter 30 is provided with a resistance groove 31 which is in sliding connection with a convex part on the inner wall of the inner sleeve 22, the resistance groove 31 is tightly attached to the convex part, the length of the resistance groove 31 is larger than that of the convex part of the inner sleeve 22, and the convex part tightly props against the resistance groove 31.
As shown in fig. 1, 3 and 4, the power adapter 30 further includes: a fixed collar 33, a transmission rod 34, a slide block 35 and a telescopic spring 36.
The fixed lantern ring 33 is fixed on the main shaft 11, the transmission rod 34 is connected with the fixed lantern ring 33, the fixed lantern ring 33 and the transmission rod 34 are made of rigid materials, and the fixed lantern ring 33 and the transmission rod 34 are of an integrally formed structure. The slide block 35 is connected with the slide groove 32 on the power adapter 30 in a sliding mode, the groove depth of the slide groove 32 is larger than the thickness of the slide block 35, the transmission rod 34 is connected with the slide block 35, the telescopic spring 36 is installed in the slide groove 32, the telescopic spring 36 is connected with the slide block 35, and the grinding wheel 40 is located at the side end of the power adapter 30.
The stud 50 penetrates through the grinding wheel 40 and the power adapter 30, the stud 50 is in threaded connection with the grinding wheel 40 and the power adapter 30, the grinding wheel 40 is further fixedly connected with the power adapter 30 through a bolt 37, threaded holes 51 are formed in two ends of the stud 50, and the spindle 11 penetrates into the threaded holes 51 and connects the spindle 11 with the spindle 11. The stud 50 secures the grinding wheel 40 by means of a nut 60.
A sleeve 70 is arranged between the grinding wheel 40 and the power adapter 30, the sleeve 70 is sleeved on the stud 50, and the sleeve 70 is fixed on the stud 50 through a fixing piece 71. Preventing the threaded connection of the stud 50 from loosening.
The implementation steps are as follows: as shown in fig. 5 and 6, the connecting sleeve 20 shares the torque and the shearing force of the main shaft 11 during the rotation processing of the main shaft 11, when the main shaft 11 is broken during the processing, the grinding wheel 40 is still influenced by the connecting sleeve 20 and cannot rotate and fly off, and under the inertial rotation of the power adapter 30, the power adapter 30 will sideslip along the inner sleeve 22 in the connecting sleeve 20, so that the stud 50 drives the broken part of the main shaft 11 to be separated from the part of the main shaft 11 which is not broken, and the stud 50 is prevented from generating unstable rotation.
The rotating speed of the unbroken spindle 11 part is greater than that of the power adapter 30, the fixed lantern ring 33 on the unbroken spindle 11 part rotates relative to the power adapter 30, the fixed lantern ring 33 drives the transmission rod 34 to drive the sliding block 35 to rotate along the sliding groove 32 on the power adapter 30, the sliding block 35 extrudes the telescopic spring 36 of the sliding groove 32 to compress, and finally the sliding block 35 pushes the power adapter 30 to rotate, so that the power adapter 30 and the unbroken spindle 11 part rotate synchronously, power is transmitted to the grinding wheel 40, and the grinding wheel 40 rotates normally.
As shown in fig. 8, when the grinding wheel 40 is no longer in operation, the stud 50 is removed, the stud 50 is reversed, the other end of the stud 50 is inserted into the grinding wheel 40 and the power adapter 30 again, and the other axial threaded hole 51 of the stud 50 is in threaded connection with the unbroken spindle 11.
According to the invention, the connecting sleeves 20 are fixed at two ends of the double-end motor 10, then the connecting sleeves 20 are rotatably connected with the power adapter 30, the main shaft 11 is in threaded connection with the power adapter 30, and after the stud 50 penetrates through the grinding wheel 40 and the power adapter 30, the axial threaded hole 51 of the stud 50 is in threaded connection with the main shaft 11. When the main shaft 11 is broken, the grinding wheel 40 is still influenced by the connecting sleeve 20 and cannot rotate and fly out, and the power adapter 30 can sideslip along the inner sleeve 22, so that the stud 50 drives the broken part of the main shaft 11 to be separated from the part of the main shaft 11 which is not broken, the stud 50 is prevented from rotating unstably, the part of the main shaft 11 which is not broken drives the sliding block 35 to push the power adapter 30 to rotate, the power adapter 30 and the part of the main shaft 11 which is not broken synchronously rotate, and then the power is transmitted to the grinding wheel 40, so that the grinding wheel 40 works normally. In addition, when the grinding wheel 40 does not work, the stud 50 is taken down, the threaded hole 51 at the other end of the stud 50 is in threaded connection with the part of the unbroken main shaft 11, and then the grinding wheel 40 can be restored to the initial state again, so that the service life is prolonged, and the problems that the machining efficiency is reduced and the cost is increased are solved.
Example two:
a grinding wheel sander with a broken shaft power switching function has the same characteristic structure as the first embodiment, as shown in FIGS. 8-10, an impeller 80 is arranged on a fixed sleeve ring 33 or a piston transmission rod 34, blades 81 are arranged on the impeller 80, an air inlet channel 221 and an air outlet channel 222 are arranged in an inner sleeve 22, the air inlet channel 221 is positioned at the back of the impeller 80, and an air blowing channel is positioned at the front of the impeller 80.
The inner sleeve 22 is further provided with a filter 90, the filter 90 is provided with a filter cavity, a filter screen 91 is arranged in the filter cavity, and the filter cavity is communicated with the air inlet channel 221 and the air inlet 92.
The filter 90 further includes a ring groove 93, the ring groove 93 communicates the air outlet passage 222 with the exhaust port 94, the exhaust port 94 is disposed obliquely, and the exhaust port 94 is inclined toward the central axis of the air inlet 92.
When the main shaft 11 rotates, the impeller 80 is driven to rotate synchronously, when the impeller 80 rotates, outside air (a large amount of dust is generated due to grinding of the grinding wheel 40) is sucked through the air inlet 92 and then enters the filter cavity to be filtered, and then the outside air flows into the back of the impeller 80 through the air inlet channel 221, so that the impeller 80 is drawn into the air, the air flow is enhanced, on one hand, the lubricating capacity of the bearing 23 and the power adapter 30 is improved, the rotating friction force of the bearing 23 and the power adapter 30 is reduced, on the other hand, the heat dissipation of the double-head motor 10 is promoted, the working stability of the double-head motor 10 is ensured, and the service life is prolonged.
The air blown out by the impeller 80 carries heat and enters the annular groove 93 of the filter 90 along the air outlet channel 222, the air is exhausted from the air outlet 94 through the annular groove 93, the exhausted air collides outside the air inlet 92 at the moment to form an airflow screen, dust generated by grinding of the grinding wheel 40 is blown away from the air inlet 92, and stable operation of the bearing 23 and the power adapter 30 is guaranteed.
Example three:
a broken shaft power switching method comprises the following steps:
the connecting sleeve 20 is fixed with two ends of the double-end motor 10, a main shaft 11 of the double-end motor 10 is in threaded connection with the power adapter 30, the power adapter 30 is in rotary connection with the connecting sleeve 20, the stud 50 penetrates through the grinding wheel 40 and the power adapter 30, an axial threaded hole 51 of the stud 50 is in threaded connection with the main shaft 11, and the grinding wheel 40, the main shaft 11, the power adapter 30 and the connecting sleeve 20 are connected in pairs to form a stable whole;
the connecting sleeve 20 shares the torque and the shearing force of the main shaft 11 in the rotation processing process of the main shaft 11, when the main shaft 11 is broken in the processing process, the grinding wheel 40 is still influenced by the connecting sleeve 20 and cannot rotate and fly out, and under the inertial rotation of the power adapter 30, the power adapter 30 can sideslip along the inner sleeve 22 in the connecting sleeve 20, so that the stud 50 drives the broken part of the main shaft 11 to be separated from the part of the main shaft 11 which is not broken, and the stud 50 is prevented from generating unstable rotation;
the rotating speed of the part of the unbroken spindle 11 is greater than that of the power adapter 30, the fixed lantern ring 33 on the part of the unbroken spindle 11 rotates relative to the power adapter 30, the fixed lantern ring 33 drives the transmission rod 34 to drive the sliding block 35 to rotate along the sliding groove 32 on the power adapter 30, the sliding block 35 extrudes the telescopic spring 36 of the sliding groove 32 to be compressed, and finally the sliding block 35 pushes the power adapter 30 to rotate, so that the power adapter 30 and the part of the unbroken spindle 11 synchronously rotate, the power is transmitted to the grinding wheel 40, and the grinding wheel 40 normally rotates;
when the grinding wheel 40 does not work any more, the stud 50 is taken down, the stud 50 is changed in direction, the other end of the stud 50 penetrates through the grinding wheel 40 and the power adapter 30 again, and the other threaded hole 51 in the axial direction of the stud 50 is in threaded connection with the part of the unbroken spindle 11.
The grinding wheel 40 is fixedly connected with the power adapter 30 through the bolt 37, the bolt 37 prevents the threaded connection between the stud 50 and the power adapter 30 from loosening, and the bolt 37 can share the torque and the shearing force of the shaft of the grinding wheel 40, so that the service life of the main shaft 11 is prolonged.
Although the illustrative embodiments of the present invention have been described above to enable those skilled in the art to understand the present invention, the present invention is not limited to the scope of the embodiments, and it is apparent to those skilled in the art that all the inventive concepts using the present invention are protected as long as they can be changed within the spirit and scope of the present invention as defined and defined by the appended claims.
Claims (10)
1. A grinding wheel sander with a function of shaft breaking power switching comprises:
a double-headed motor having a main shaft on both sides thereof;
the connecting sleeves are arranged at two ends of the double-end motor, are coated and fixed at two ends of the double-end motor, penetrate through connecting rods on the two connecting sleeves and are connected with each other through the connecting rods;
the inner sleeve is connected with the connecting sleeve through a bearing;
the power adapter, the power adapter side have with endotheca inner wall bellying sliding connection's resistance groove, the resistance groove closely laminates the bellying, the power adapter still has:
the fixed lantern ring is fixed on the main shaft;
the transmission rod is connected with the fixed lantern ring;
the sliding block is connected with a sliding groove on the power adapter in a sliding mode, and the transmission rod is connected with the sliding block;
the telescopic spring is installed in the sliding groove and is connected with the sliding block;
the grinding wheel is positioned at the side end of the power adapter;
the stud penetrates through the grinding wheel and the power adapter, the stud is in threaded connection with the grinding wheel and the power adapter, threaded holes are formed in two ends of the stud, the spindle penetrates into the threaded holes, and the spindle is connected with the spindle;
the stud fixes the grinding wheel through the nut;
the fixed lantern ring or the piston transmission rod is provided with an impeller, the impeller is provided with blades, the inner sleeve is internally provided with an air inlet channel and an air outlet channel, the air inlet channel is positioned at the back of the impeller, and the air outlet channel is positioned at the front end of the impeller;
the inner sleeve is also internally provided with a filter, the filter is internally provided with a filter cavity, a filter screen is arranged in the filter cavity, and the filter cavity is communicated with the air inlet channel and the air suction port;
still have the annular in the filter, the annular intercommunication air outlet channel and gas vent, the gas vent slope sets up, the incline direction orientation of gas vent the central axis direction of induction port.
2. The grinding wheel sander with a disconnected axle power switching function as set forth in claim 1, wherein the length of the resistance groove is greater than the protrusion of the inner sleeve, and the protrusion tightly abuts against the resistance groove.
3. The grinding wheel sander with a broken shaft power transfer function according to claim 1, wherein the groove depth of the sliding groove is greater than the thickness of the sliding block.
4. The grinding wheel sander with a broken shaft power adapter function according to claim 1, wherein the grinding wheel is fixedly connected with the power adapter through a bolt.
5. The grinding wheel sander with a broken shaft power switching function according to claim 1, wherein a sleeve is arranged between the grinding wheel and the power switching base, and the sleeve is sleeved on the stud to prevent the threaded connection of the stud from loosening.
6. The grinding wheel sander with a broken shaft power transfer function as set forth in claim 5, wherein the sleeve is fixed to the stud by a fixing member.
7. The sander with a broken shaft power transfer function as set forth in claim 1, wherein said stationary collar and said drive link are made of a rigid material.
8. The sander with a broken shaft power transfer function as set forth in claim 1, wherein said stationary collar and said transmission rod are of an integrally formed construction.
9. A broken shaft power switching method comprises the following steps:
the double-end motor is characterized in that the connecting sleeve is fixed with two ends of the double-end motor, a main shaft of the double-end motor is in threaded connection with the power adapter, the power adapter is in rotary connection with the connecting sleeve, the stud penetrates through the grinding wheel and the power adapter, a threaded hole in the axial direction of the stud is in threaded connection with the main shaft, and the grinding wheel, the main shaft, the power adapter and the connecting sleeve are connected in pairs to form a stable whole;
the connecting sleeve shares the torque and the shearing force of the main shaft in the rotating machining process of the main shaft, when the main shaft is broken in the machining process, the grinding wheel is still influenced by the connecting sleeve and cannot rotate and fly out, and under the inertial rotation of the power adapter, the power adapter can sideslip along the inner sleeve in the connecting sleeve, so that the stud drives the broken part of the main shaft to be separated from the part of the main shaft which is not broken, and the stud is prevented from generating unstable rotation;
the rotating speed of the unbroken spindle part is greater than that of the power adapter, a fixed lantern ring on the unbroken spindle part rotates relative to the power adapter, the fixed lantern ring drives a transmission rod to drive a sliding block to rotate along a sliding groove on the power adapter, the sliding block extrudes a telescopic spring of the sliding groove to be compressed, and finally the sliding block pushes the power adapter to rotate, so that the power adapter and the unbroken spindle part synchronously rotate, power is transmitted to a grinding wheel, and the grinding wheel normally rotates;
when the grinding wheel does not work any more, the stud is taken down, the direction of the stud is changed, the other end of the stud penetrates through the grinding wheel and the power adapter again, and then the other threaded hole in the axial direction of the stud is in threaded connection with the unbroken spindle part.
10. The broken shaft power switching method according to claim 9, wherein the grinding wheel is fixedly connected with the power adapter through a bolt, the bolt prevents the threaded connection between the stud and the power adapter from loosening, and the bolt can share the torque and the shearing force of the grinding wheel shaft, so that the service life of the main shaft is prolonged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010994447.0A CN112059865B (en) | 2020-09-21 | 2020-09-21 | Grinding wheel grinding machine with broken shaft power switching function and broken shaft power switching method |
Applications Claiming Priority (1)
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