CN211648815U

CN211648815U - Bearing for electric hammer tool

Info

Publication number: CN211648815U
Application number: CN201922213519.9U
Authority: CN
Inventors: 周玉龙; 吕小听; 陶冶
Original assignee: Xinchang Xuelianhua Bearing Co ltd
Current assignee: Xinchang Xuelianhua Bearing Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-10-09
Anticipated expiration: 2029-12-11

Abstract

The utility model relates to the technical field of bearings, and discloses a bearing for an electric hammer tool, which solves the problems that the existing electric hammer bearing is easy to enter dust and be adsorbed by lubricating oil, thereby reducing the lubricating effect of the lubricating oil and the service life of the bearing; if the bearing is closed, lubricating oil is not convenient to supplement, the bearing is not convenient to maintain, and the working temperature is overhigh; this bearing for electric hammer instrument can effectually avoid the dust to enter into the inside of bearing to guaranteed the lubricated effect of lubricating oil and the life of bearing, this bearing for electric hammer instrument can convenient effectual installing and dismantling simultaneously, and can effectually dispel the heat the cooling, thereby ensured the effective use of bearing.

Description

Bearing for electric hammer tool

Technical Field

The utility model belongs to the technical field of the bearing, specifically be a bearing for electric hammer instrument.

Background

The bearing is an important part in the modern mechanical equipment; its main function is to support the mechanical rotator, reduce the friction coefficient in its motion process and ensure its rotation precision.

The electric hammer is a common electric tool, a large amount of dust can be generated in the use process of the electric hammer, and the dust can enter the bearing and be adsorbed by lubricating oil, so that the lubricating effect of the lubricating oil is reduced, and the service life of the bearing is influenced; if the bearing is closed, the dust can be effectively reduced, but lubricating oil is inconvenient to supplement and the bearing is inconvenient to maintain, and the closed bearing can cause overhigh working temperature; therefore, improvements are now needed in view of the current situation.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a bearing for an electric hammer tool, which effectively solves the problem that the existing electric hammer bearing is easy to enter dust and is adsorbed by lubricating oil, thereby reducing the lubricating effect of the lubricating oil and the service life of the bearing; if the bearing is closed, lubricating oil is inconvenient to supplement, maintenance of the bearing is inconvenient, and the working temperature is overhigh.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bearing for electric hammer instrument, including the bearing body, one side of bearing body is equipped with the shroud, the middle part fixed mounting of shroud has the hollow tube, the one end movable mounting of hollow tube is in the inside of bearing body one end, the inlet port has been seted up to the one end equidistance of shroud, the venthole has been seted up to one side equidistance of shroud, the middle part fixed mounting of hollow tube has the flabellum, the surperficial equidistance fixed mounting of bearing body one end has eight fixture blocks, the notch has all been seted up to one side of eight fixture blocks, fixing mechanism is installed to the middle part symmetry of shroud inner chamber, fixing mechanism's one end activity joint is in the inside of notch, disassembly body is installed.

Preferably, an octagonal clamping groove is formed in one end of the bearing body, an octahedron is formed in one end of the hollow pipe, and the octahedron is movably clamped in the octagonal clamping groove.

Preferably, the air inlet is a square hole, and a filter screen is installed on the outer side of the air inlet.

Preferably, the air outlet is an inclined conical hole, and the large-caliber end of the air outlet faces the inside of the cover cap.

Preferably, the fixing mechanism comprises a U-shaped part, a fixing shaft, a fixing rod and a torsion spring, the U-shaped part is fixedly installed in the middle of the inner wall of the cover cap, the fixing shaft is fixedly installed between the two ends of the inner side of the U-shaped part, the fixing rod is movably installed in the middle of the fixing shaft, the torsion spring is sleeved on the two sides of the fixing rod, the two ends of the torsion spring are fixedly connected with the fixing rod and the fixing shaft respectively, and the hook end part of the fixing rod is movably.

Preferably, the disassembly mechanism comprises a convex groove, a push rod, a supporting block and a spring, the convex groove is formed in the surface of the cover cap, the push rod is installed inside the convex groove, the supporting block is fixedly installed at one end of the push rod and is in contact with one end of the fixing rod, the spring is sleeved on the surface of the push rod, and two ends of the spring are fixedly installed in the middle of the convex groove and one side of the supporting block respectively.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) during working, the bearing for the electric hammer tool can effectively prevent dust from entering the inside of the bearing by arranging the octagonal clamping groove, the cover cap, the hollow tube and the octahedron, so that the lubricating effect of lubricating oil and the service life of the bearing are ensured; the octahedron is arranged in the octagonal clamping groove (the hook end part of the fixing rod is clamped into the notch), so that the cover cap seals the bearing body, and dust is prevented from entering the bearing body in the using process;

(2) the bearing for the electric hammer tool can be conveniently and effectively mounted and dismounted and can effectively dissipate heat and cool by being provided with the air inlet hole, the air outlet hole, the fan blade, the clamping block, the notch, the fixing mechanism, the U-shaped part, the fixing shaft, the fixing rod, the torsion spring, the dismounting mechanism, the convex groove, the push rod, the abutting block and the spring, so that the effective use of the bearing is ensured; after the cover cap and the hollow pipe are installed on the bearing body, the cover cap and the hollow pipe can rotate through the use of an electric hammer and an electric drill, the hollow pipe can rotate to drive the fan blades to rotate, the fan blades can rotate to suck external air into the hollow pipe through the air inlet holes, and meanwhile, heat in the hollow pipe is discharged through the air outlet holes, so that the bearing body is cooled; when the bearing body needs to be added with lubricating oil, the pushing rod is pressed to enable the abutting block to extrude one end of the fixing rod, so that the hook end portion of the fixing rod is withdrawn from the inside of the notch, and then the cover cap and the hollow pipe are detached from the bearing body together.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic exploded cross-sectional view of fig. 1 according to the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention;

in the figure: 1. a bearing body; 101. an octagonal slot; 2. a cover; 3. a hollow tube; 301. an octahedron; 4. an air inlet; 5. an air outlet; 6. a fan blade; 7. a clamping block; 8. a recess; 9. a fixing mechanism; 901. a U-shaped piece; 902. a fixed shaft; 903. fixing the rod; 904. a torsion spring; 10. a disassembly mechanism; 1001. a convex groove; 1002. a push rod; 1003. a resisting block; 1004. a spring.

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 some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the first embodiment, as shown in fig. 1 and 2, the bearing comprises a bearing body 1, a cover cap 2 is disposed on one side of the bearing body 1, a hollow tube 3 is fixedly disposed in the middle of the cover cap 2, one end of the hollow tube 3 is movably disposed inside one end of the bearing body 1, an air inlet 4 is disposed at one end of the cover cap 2 at an equal distance, an air outlet 5 is disposed at one side of the cover cap 2 at an equal distance, the interior of the cover cap 2 can be effectively kept ventilated through the air inlet 4 and the air outlet 5, so as to effectively dissipate heat, a fan blade 6 is fixedly disposed in the middle of the hollow tube 3, the bearing body 1 can be cooled through rotation of the hollow tube 3 through the arrangement of the fan blade 6, eight fixture blocks 7 are fixedly disposed on the surface of one end of the bearing body 1 at an equal distance, notches 8 are disposed on, the one end activity joint of fixed establishment 9 is in the inside of notch 8, and disassembly body 10 is installed to the middle part symmetry on shroud 2 surface, and the one end of disassembly body 10 contacts with fixed establishment 9's the other end, through the setting of fixed establishment 9 and disassembly body 10, can convenient effectual installation and dismantlement to shroud 2.

In the second embodiment, on the basis of the first embodiment, as shown in fig. 2, the octagonal clamping groove 101 is formed in one end of the bearing body 1, the octahedron 301 is formed in one end of the hollow tube 3, the octahedron 301 is movably clamped in the octagonal clamping groove 101, and the hollow tube 3 can be stably and effectively connected with the bearing body 1 through the arrangement of the octagonal clamping groove 101 and the octahedron 301.

Third embodiment, on the basis of first embodiment, given by fig. 2, the inlet port 4 is the quad slit, and the filter screen is installed to the outside of inlet port 4 to can effectually avoid the dust to enter into the inside of shroud 2.

In the fourth embodiment, on the basis of the first embodiment, as shown in fig. 2, the air outlet 5 is an inclined tapered hole, and the large-caliber end of the air outlet 5 faces the inside of the cover 2, so that heat dissipation of the component can be quickly and effectively performed.

Fifth embodiment, on the basis of first embodiment, as shown in fig. 2 and 3, the fixing mechanism 9 includes a U-shaped part 901, a fixing shaft 902, a fixing rod 903 and a torsion spring 904, the U-shaped part 901 is fixedly installed in the middle of the inner wall of the cover 2, the fixing shaft 902 is fixedly installed between two ends of the inner side of the U-shaped part 901, the fixing rod 903 is movably installed in the middle of the fixing shaft 902, the torsion spring 904 is sleeved on two sides of the fixing rod 903, two ends of the torsion spring 904 are respectively fixedly connected with the fixing rod 903 and the fixing shaft 902, the hook end of the fixing rod 903 is movably clamped in the notch 8, and the cover 2 and the hollow tube 3 can be stably installed on the bearing body 1 through the U-shaped part 901, the fixing shaft 902.

Sixth embodiment, based on the first embodiment, as shown in fig. 3, the detaching mechanism 10 includes a convex groove 1001, a push rod 1002, a resisting block 1003 and a spring 1004, the convex groove 1001 is disposed on the surface of the cover 2, the push rod 1002 is disposed inside the convex groove 1001, the resisting block 1003 is fixedly disposed at one end of the push rod 1002, the resisting block 1003 contacts with one end of the fixing rod 903, the spring 1004 is sleeved on the surface of the push rod 1002, two ends of the spring 1004 are respectively fixedly disposed at the middle of the convex groove 1001 and one side of the resisting block 1003, and the fixing mechanism 9 can be effectively controlled by the arrangement of the convex groove 1001, the push rod 1002, the resisting block 1003 and the spring 1004.

The working principle is as follows: by installing the octahedron 301 inside the octagonal clamping groove 101 (and clamping the hook end of the fixing rod 903 inside the notch 8), the cover 2 seals the bearing body 1, thereby preventing dust from entering the inside of the bearing body 1 during use; after the cover cap 2 and the hollow pipe 3 are installed on the bearing body 1, the cover cap 2 and the hollow pipe 3 can rotate through the use of an electric hammer and an electric drill, the hollow pipe 3 can drive the fan blades 6 to rotate, the fan blades 6 can suck external air into the hollow pipe 3 through the air inlet holes 4 through the rotation, and meanwhile, heat in the hollow pipe 3 is discharged through the air outlet holes 5, so that the bearing body 1 is cooled; when lubricating oil needs to be added to the bearing body 1, the abutting block 1003 presses one end of the fixing rod 903 by pressing the push rod 1002, so that the hook end of the fixing rod 903 is withdrawn from the inside of the notch 8, and then the cover 2 together with the hollow tube 3 is detached from the bearing body 1.

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 bearing for electric hammer instrument, includes bearing body (1), its characterized in that: one side of bearing body (1) is equipped with shroud (2), the middle part fixed mounting of shroud (2) has hollow tube (3), the one end movable mounting of hollow tube (3) has been in the inside of bearing body (1) one end, inlet port (4) have been seted up to the one end equidistance of shroud (2), venthole (5) have been seted up to one side equidistance of shroud (2), the middle part fixed mounting of hollow tube (3) has flabellum (6), the fixed mounting of surface equidistance of bearing body (1) one end has eight fixture blocks (7), notch (8) have all been seted up to one side of eight fixture blocks (7), fixed establishment (9) is installed to the middle part symmetry of shroud (2) inner chamber, the inside of the movable joint of one end of fixed establishment (9) is in notch (8), disassembly body (10) are installed to the middle part symmetry on shroud (2) surface, the one end of disassembly body.

2. The bearing for electric hammer tool according to claim 1, wherein: octagonal clamping grooves (101) are formed in one end of the bearing body (1), octahedrons (301) are formed in one end of the hollow pipe (3), and the octahedrons (301) are movably clamped in the octagonal clamping grooves (101).

3. The bearing for electric hammer tool according to claim 1, wherein: the air inlet holes (4) are square holes, and a filter screen is installed on the outer side of each air inlet hole (4).

4. The bearing for electric hammer tool according to claim 1, wherein: the air outlet hole (5) is an inclined conical hole, and the large-caliber end of the air outlet hole (5) faces the inner part of the cover cap (2).

5. The bearing for electric hammer tool according to claim 1, wherein: fixed establishment (9) are including U-shaped spare (901), fixed axle (902), dead lever (903) and torsional spring (904), U-shaped spare (901) fixed mounting is in the middle part of shroud (2) inner wall, fixed axle (902) fixed mounting is between the both ends of U-shaped spare (901) inboard, dead lever (903) movable mounting is in the middle part of fixed axle (902), torsional spring (904) cup joint the both sides at dead lever (903), and the both ends of torsional spring (904) are connected with dead lever (903) and fixed axle (902) are fixed respectively, the hook end portion activity joint of dead lever (903) is in the inside of notch (8).

6. The bearing for electric hammer tool according to claim 1, wherein: the disassembly mechanism (10) comprises a convex groove (1001), a push rod (1002), a resisting block (1003) and a spring (1004), the convex groove (1001) is formed in the surface of the cover cap (2), the push rod (1002) is installed inside the convex groove (1001), the resisting block (1003) is fixedly installed at one end of the push rod (1002), the resisting block (1003) is in contact with one end of the fixing rod (903), the spring (1004) is sleeved on the surface of the push rod (1002), and two ends of the spring (1004) are fixedly installed in the middle of the convex groove (1001) and one side of the resisting block (1003) respectively.