CN111975633B

CN111975633B - Grinding wheel safe installation fixing mechanism

Info

Publication number: CN111975633B
Application number: CN202010721768.3A
Authority: CN
Inventors: 刘延军
Original assignee: Hunan Sc Abrasives Co ltd
Current assignee: HUNAN SC ABRASIVES CO.,LTD.
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2022-03-15
Anticipated expiration: 2040-07-24
Also published as: CN111975633A

Abstract

The invention relates to the technical field of grinding wheel equipment, and discloses a grinding wheel safe mounting and fixing mechanism which comprises a grinding wheel machine shell, wherein a bearing is fixedly mounted inside the grinding wheel machine shell, a power output shaft is fixedly mounted inside the bearing, a clamping seat is fixedly connected to the side wall of an inner cavity of the grinding wheel machine shell, which is positioned on the left side of the bearing, one end of the power output shaft is fixedly connected with a connecting shaft, a grinding wheel is movably sleeved on the outer surface of the connecting shaft, and a clamping groove is formed in the inner side surface of the grinding wheel. This emery wheel safety installation fixed establishment through setting up the depression bar in threaded shaft department to and the cooperation of first hinge bar, second hinge bar, joint rod and cassette, makes the nut screw up and carries out the in-process fixed to the emery wheel, can guarantee that power output shaft is fixed, and then prevents that the nut from screwing the in-process, and power output shaft follows the rotation easily, and can guarantee that the nut screws up the back, can guarantee power output shaft's free state.

Description

Grinding wheel safe installation fixing mechanism

Technical Field

The invention relates to the technical field of grinding wheel equipment, in particular to a grinding wheel safe mounting and fixing mechanism.

Background

The grinder is a common equipment for sharpening various cutters and tools and also used for grinding, deburring, cleaning and other works of common small parts, mainly comprises a base, a grinding wheel, a motor or other power sources, a bracket, a protective cover, a water feeder and the like, and can be divided into a handheld grinder, a vertical grinder, a suspended grinder, a bench grinder and the like.

When the grinder is used, the grinding wheel needs to be installed on a mechanical power output shaft, then the grinding wheel is fixed by using a chuck and a nut, when the nut is screwed, the output shaft easily rotates synchronously along with the nut, the output shaft needs to be fixed by using tools, the nut is further troublesome to screw, in addition, the power output shaft drives the grinding wheel to rotate, the rotating speed of the output shaft is higher, meanwhile, the grinding wheel is easily subjected to external friction force during working, the grinding wheel possibly slides, meanwhile, the nut is loosened due to the rotating effect, and the potential safety hazard is easily caused after long-time use.

Disclosure of Invention

The invention provides a mechanism for safely installing and fixing a grinding wheel, which has the advantages that the grinding wheel is labor-saving to install and is stable to install, the grinding wheel can be fixed by using centrifugal force in the rotation process of the grinding wheel, meanwhile, a nut can not fall off, and the problems in the background art are solved.

The invention provides the following technical scheme: the utility model provides a emery wheel safety installation fixed establishment, includes the emery wheel shell, the inside fixed mounting of emery wheel shell has the bearing, the inside fixed mounting of bearing has power output shaft, the lateral wall of emery wheel shell inner chamber is located the left side fixedly connected with cassette of bearing, power output shaft's one end fixedly connected with connecting axle, the surface movable sleeve of connecting axle is equipped with the emery wheel, the draw-in groove has been seted up to the medial surface of emery wheel, the surface of connecting axle is located the both sides movable sleeve of emery wheel and is equipped with the chuck with emery wheel matched with, the other end fixedly connected with screw thread axle of connecting axle, the nut is installed to the surface screw thread of screw thread axle.

Preferably, the inside activity hinge of screw thread axle has the depression bar that extends to the screw thread axle outside, the other end fixedly connected with connecting seat of depression bar, the other end fixedly connected with spring of connecting seat, the other end of spring and the left surface fixed connection of screw thread axle inner chamber, the junction movable mounting of screw thread axle inner chamber and connecting axle inner chamber has first hinge bar, the one end of first hinge bar and the side activity joint of depression bar, the junction movable mounting of connecting axle inner chamber and power output shaft inner chamber has the second hinge bar, the one end of second hinge bar is articulated with the other end activity of first hinge bar.

Preferably, the side of the inner cavity of the power output shaft is movably provided with a clamping rod matched with the clamping seat, and the other end of the second hinged rod is movably connected with the side of the clamping rod.

Preferably, the front fixed mounting of connecting axle inner chamber has the drum seat, drum seat inner chamber fixed mounting has the disc, the side fixedly connected with extension spring of disc, drum seat inner chamber activity hinge have with draw-in groove matched with buckle pole, the other end of extension spring and the side fixed connection of buckle pole, the left side activity hinge that the connecting axle inner chamber is located the drum seat has the broken line pole, the one end of broken line pole is articulated with the one end activity of buckle pole, the side movable mounting of connecting axle inner chamber has the pressure to move the pole that extends to the connecting axle outside and nut matched with, the one end of pressure moves the pole and the other end swing joint of broken line pole.

Preferably, the number of the clamping seats is four, and the four clamping seats are uniformly distributed on the inner side of the grinding wheel machine shell.

The invention has the following beneficial effects:

1. this emery wheel safety installation fixed establishment through setting up the depression bar in threaded shaft department to and the cooperation of first hinge bar, second hinge bar, joint rod and cassette, makes the nut screw up and carries out the in-process fixed to the emery wheel, can guarantee that power output shaft is fixed, and then prevents that the nut from screwing the in-process, and power output shaft follows the rotation easily, and can guarantee that the nut screws up the back, can guarantee power output shaft's free state.

2. This fixing mechanism is installed to emery wheel safety, through setting up the buckle pole in the drum seat and setting up the draw-in groove in the emery wheel, guarantee that the connecting axle is at the pivoted in-process, make the buckle pole fix the draw-in groove under the effect of centrifugal force, and then guarantee that the emery wheel can not appear sliding, and set up the broken line pole in connecting axle department, the cooperation of pressure pole, can guarantee that the buckle pole carries out the in-process of moving, can fix the nut, prevent that the nut from appearing not hard up, and then reduce the probability that danger appears.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present invention;

FIG. 2 is a cross-sectional view of an output shaft, a connecting shaft, and a threaded shaft of the present invention;

FIG. 3 is an internal cross-sectional view of the structural connecting shaft of the present invention;

fig. 4 is a side view of the structural cylinder seat of the present invention.

In the figure: 1. a grinding wheel machine shell; 2. a chuck; 3. a grinding wheel; 4. a nut; 5. a threaded shaft; 6. a card holder; 7. a connecting shaft; 8. a power take-off shaft; 9. a bearing; 10. a clamping and connecting rod; 11. a second hinge lever; 12. a cylindrical seat; 13. a card slot; 14. a buckle rod; 15. a first hinge lever; 16. a pressure lever; 17. a spring; 18. a connecting seat; 19. a tension spring; 20. a disc; 21. pressing the rod; 22. a line folding rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The drawings in the embodiments of the invention: the different types of hatching in the figures are not given the national standards, do not require the material of the elements, and distinguish between cross-sectional views of the elements in the figures.

Referring to fig. 1-4, a grinding wheel safety mounting and fixing mechanism comprises a grinding wheel housing 1, a bearing 9 is fixedly mounted inside the grinding wheel housing 1, a power output shaft 8 is fixedly mounted inside the bearing 9, a clamping seat 6 is fixedly connected to the left side of the bearing 9 on the side wall of the inner cavity of the grinding wheel housing 1, the number of the clamping seats 6 is four, the four clamping seats 6 are uniformly distributed on the inner side of the grinding wheel housing 1, a connecting shaft 7 is fixedly connected to one end of the power output shaft 8, a grinding wheel 3 is movably sleeved on the outer surface of the connecting shaft 7, a clamping groove 13 is formed in the inner side surface of the grinding wheel 3, chucks 2 matched with the grinding wheel 3 are movably sleeved on the outer surface of the connecting shaft 7 on the two sides of the grinding wheel 3, a threaded shaft 5 is fixedly connected to the other end of the connecting shaft 7, and a nut 4 is installed on the outer surface of the threaded shaft 5.

A pressure lever 16 extending to the outer side of the threaded shaft 5 is movably hinged inside the threaded shaft 5, the other end of the pressure lever 16 is fixedly connected with a connecting seat 18, the other end of the connecting seat 18 is fixedly connected with a spring 17, the other end of the spring 17 is fixedly connected with the left side surface of the inner cavity of the threaded shaft 5, a first hinge rod 15 is movably installed at the joint of the inner cavity of the threaded shaft 5 and the inner cavity of the connecting shaft 7, one end of the first hinge rod 15 is movably clamped with the side surface of the pressure lever 16, one end of the pressure lever 16 is provided with a chute hinged with the first hinge rod 15, a second hinge rod 11 is movably installed at the joint of the inner cavity of the connecting shaft 7 and the inner cavity of the power output shaft 8, one end of the second hinge rod 11 is movably hinged with the other end of the first hinge rod 15, a clamping rod 10 matched with the clamping seat 6 is movably installed at the side surface of the inner cavity of the power output shaft 8, and the other end of the second hinge rod 11 is movably connected with the side surface of the clamping rod 10, through setting up depression bar 16 in threaded shaft 5 department to and the cooperation of first hinge bar 15, second hinge bar 11, joint pole 10 and cassette 6, make nut 4 screw up and carry out the in-process fixed to emery wheel 3, can guarantee that power output shaft 8 is fixed, and then prevent that nut 4 from screwing up the in-process, power output shaft 8 follows the rotation easily, and can guarantee that nut 4 screws up the back, can guarantee power output shaft 8's free state.

A cylinder seat 12 is fixedly arranged on the front of the inner cavity of the connecting shaft 7, a disc 20 is fixedly arranged in the inner cavity of the cylinder seat 12, a tension spring 19 is fixedly connected to the side surface of the disc 20, a buckle rod 14 matched with the clamping groove 13 is movably hinged to the inner cavity of the cylinder seat 12, a gravity ball is fixedly connected to the top of the buckle rod 14, the gravity ball is arranged to ensure that the buckle rod 14 can be quickly opened under the action of centrifugal force, the other end of the tension spring 19 is fixedly connected to the side surface of the buckle rod 14, a broken line rod 22 is movably hinged to the inner cavity of the connecting shaft 7 on the left side of the cylinder seat 12, one end of the broken line rod 22 is movably hinged to one end of the buckle rod 14, a pressing rod 21 extending to the outer side of the connecting shaft 7 and matched with the nut 4 is movably arranged on the side surface of the inner cavity of the connecting shaft 7, one end of the pressing rod 21 is movably connected to the other end of the broken line rod 22, and one end of the broken line rod 22 is provided with a chute hinged to the buckle rod 14, the spout of mutually articulating with broken line pole 22 is seted up to the one end of pressure bar 21, through setting up buckle pole 14 in drum seat 12 and the draw-in groove 13 of setting in emery wheel 3, guarantee connecting axle 7 at the pivoted in-process, make buckle pole 14 fix draw-in groove 13 under the effect of centrifugal force, and then guarantee that emery wheel 3 can not appear sliding, and set up broken line pole 22 in connecting axle 7 department, the cooperation of pressure bar 21, can guarantee that buckle pole 14 carries out the in-process of motion, can fix nut 4, prevent that nut 4 from appearing not hard up, and then reduce the probability of danger.

The working principle is that when the grinding wheel 3 is installed, firstly, the chuck 2 is installed on the outer surface of the connecting shaft 7 close to the power output shaft 8, then the grinding wheel 3 is sleeved on the outer surface of the connecting shaft 7, then, the other chuck 2 is sleeved on the left side of the grinding wheel 3, at the moment, the clamping rod 10 is clamped at the clamping seat 6, then, the nut 4 is screwed on the threaded shaft 5, and along with the gradual rightward movement of the nut 4, the pressing rod 16 is gradually pressed down, and further, the spring 17 is gradually compressed, so that the first hinge rod 15 rotates anticlockwise, and further, the second hinge rod 11 is driven to rotate clockwise, and further, the clamping rod 10 gradually moves downwards, so that the clamping rod 10 is separated from the clamping seat 6, at the moment, the nut 4 is gradually screwed, and further, the power output shaft 8 cannot be clamped, when the grinding machine works, due to the rotation of the connecting shaft 7, the clamping rod 14 is under the action of centrifugal force, overcome the effect of extension spring 19, the top card of buckle pole 14 is in the draw-in groove 13 department of emery wheel 3, and then prevents that emery wheel 3 from appearing sliding, and the broken line pole 22 rotates clockwise under buckle pole 14's effect this moment, and then drives the depression bar 21 and carry out anticlockwise rotation, thereby makes the depression bar 21 press the surface at nut 4, thereby guarantees that nut 4 can not appear becoming flexible when following threaded shaft 5 and rotating, guarantees that emery wheel 3 can not appear dangerously in the rotation process.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a emery wheel safety installation fixed establishment, includes emery wheel shell (1), its characterized in that: a bearing (9) is fixedly arranged inside the grinding wheel machine shell (1), a power output shaft (8) is fixedly arranged inside the bearing (9), the side wall of the inner cavity of the grinding wheel machine shell (1) is positioned on the left side of the bearing (9) and is fixedly connected with a clamping seat (6), one end of the power output shaft (8) is fixedly connected with a connecting shaft (7), a grinding wheel (3) is movably sleeved on the outer surface of the connecting shaft (7), a clamping groove (13) is formed in the inner side surface of the grinding wheel (3), chucks (2) matched with the grinding wheel (3) are movably sleeved on the outer surface of the connecting shaft (7) on two sides of the grinding wheel (3), a threaded shaft (5) is fixedly connected to the other end of the connecting shaft (7), and a nut (4) is installed on the outer surface of the threaded shaft (5);

the utility model discloses a power output shaft's (8) inner chamber, including threaded shaft (5), the inside activity hinge of threaded shaft (5) has depression bar (16) that extends to the threaded shaft (5) outside, the other end fixedly connected with connecting seat (18) of depression bar (16), the other end fixedly connected with spring (17) of connecting seat (18), the other end of spring (17) and the left surface fixed connection of threaded shaft (5) inner chamber, the junction movable mounting of threaded shaft (5) inner chamber and connecting axle (7) inner chamber has first articulated rod (15), the one end of first articulated rod (15) and the side activity joint of depression bar (16), the junction movable mounting of connecting axle (7) inner chamber and power output shaft (8) inner chamber has second articulated rod (11), the one end of second articulated rod (11) is articulated with the other end activity of first articulated rod (15).

2. The mechanism for safely mounting and fixing the grinding wheel according to claim 1, characterized in that: the side surface of the inner cavity of the power output shaft (8) is movably provided with a clamping rod (10) matched with the clamping seat (6), and the other end of the second hinged rod (11) is movably connected with the side surface of the clamping rod (10).

3. The mechanism for safely mounting and fixing the grinding wheel according to claim 1, characterized in that: the front surface of the inner cavity of the connecting shaft (7) is fixedly provided with a cylindrical seat (12), the inner cavity of the cylindrical seat (12) is fixedly provided with a disc (20), a tension spring (19) is fixedly connected with the side surface of the disc (20), a buckling rod (14) matched with the clamping groove (13) is movably hinged in the inner cavity of the cylinder seat (12), the other end of the tension spring (19) is fixedly connected with the side surface of the buckle rod (14), the inner cavity of the connecting shaft (7) is movably hinged with a broken line rod (22) on the left side of the cylindrical seat (12), one end of the broken line rod (22) is movably hinged with one end of the buckle rod (14), a pressing rod (21) which extends to the outer side of the connecting shaft (7) and is matched with the nut (4) is movably arranged on the side surface of the inner cavity of the connecting shaft (7), one end of the pressing rod (21) is movably connected with the other end of the broken line rod (22).

4. The mechanism for safely mounting and fixing the grinding wheel according to claim 1, characterized in that: the grinding wheel grinding machine is characterized in that the number of the clamping seats (6) is four, and the four clamping seats (6) are uniformly distributed on the inner side of the grinding wheel machine shell (1).