Disclosure of Invention
Aiming at the defects of the background technology, the invention provides the electric slip ring with long service life, which has the advantages of long-term stable and effective use and solves the problems in the background technology.
The invention provides the following technical scheme: an electric slip ring with long service life comprises a protective shell, wherein a transmission shaft is sleeved on one side of the protective shell in a sliding mode, a slip ring assembly positioned in the protective shell is sleeved at one end of the transmission shaft in a sliding mode, the slip ring assembly rotates along with the transmission shaft and can slide on the transmission shaft, a wiring terminal is arranged at the top of the protective shell, and conductive brushes in contact with the slip ring assembly are arranged on the front side and the back side of the wiring terminal;
the slip ring component comprises a first slip ring, a second slip ring, a third slip ring, a fourth slip ring, a fifth slip ring and a sixth slip ring from right to left in sequence, and the inner diameters of the first slip ring, the second slip ring, the third slip ring, the fourth slip ring, the fifth slip ring and the sixth slip ring are reduced in sequence, the sixth slip ring, the fifth slip ring, the fourth slip ring, the third slip ring, the second slip ring and the first slip ring are movably sleeved from left to right in sequence, the gaps between the outer rings of the first slip ring, the second slip ring, the third slip ring, the fourth slip ring, the fifth slip ring and the sixth slip ring are respectively in one-to-one correspondence with the five groups of conductive brushes on the connecting terminal, and the outer edges of the side surfaces of the first sliding ring, the second sliding ring, the third sliding ring, the fourth sliding ring, the fifth sliding ring and the sixth sliding ring are provided with conducting rings which are in contact with the conducting brushes, and a compensation spring movably sleeved on the transmission shaft is arranged between the side surface of the first sliding ring and the inner wall of the protective shell.
Preferably, a sliding bearing is arranged between the first sliding ring and the inner wall of the protective shell, and a fixed bearing is arranged between the sixth sliding ring and the inner wall of the protective shell.
Preferably, the annular sliding grooves located at the conducting rings are formed in the outer edges of the left sides of the second sliding ring, the third sliding ring, the fourth sliding ring, the fifth sliding ring and the sixth sliding ring, the limiting rings are movably sleeved in the annular sliding grooves, limiting springs are fixedly connected to the side faces of the limiting rings, and the other sides of the limiting rings are in contact with the side faces of the conducting brushes.
Preferably, the inner walls of the second sliding ring, the third sliding ring, the fourth sliding ring, the fifth sliding ring and the sixth sliding ring are provided with clamping grooves, the first sliding ring is provided with a clamping block located at the clamping groove of the inner wall of the second sliding ring, the second sliding ring is provided with a clamping block located at the clamping groove of the inner wall of the third sliding ring, the third sliding ring is provided with a clamping block located at the clamping groove of the inner wall of the fourth sliding ring, the fourth sliding ring is provided with a clamping block located at the clamping groove of the inner wall of the fifth sliding ring, the fifth sliding ring is provided with a clamping block located at the clamping groove of the inner wall of the sixth.
The invention has the following beneficial effects:
according to the electric slip ring with long service life, the slip rings of all groups are movably sleeved with each other, and the conducting rings in contact with the conducting brushes are arranged on the side surfaces of the slip rings of all groups, so that the stable contact state of the conducting brushes and the conducting rings can be kept by utilizing the elastic action of the compensating springs, the mode that the conducting brushes are kept in contact with each other by the elastic force of the conducting brushes is cancelled, the phenomenon that the conducting brushes are overheated and deformed and cannot be stably contacted with the conducting rings is effectively avoided, and the long-term stable use of the electric slip ring is ensured; when abrasion and consumption exist between the conductive brush and the conductive ring, compensation is carried out through the approaching movement of the groups of the slip rings, the stable contact state of the conductive ring and the conductive brush is further ensured, so that each conductive brush is uniform in current distribution, and the long-term effective use of the electrical slip rings is further ensured; still through the elastic force effect of compensation spring for electrically conductive brush keeps certain pressure to the conducting ring all the time, after conducting ring and electrically conductive brush contact in-process production grit, the grit on the conducting ring is when the one end of next round contact conducting brush, is picked off from the side of conducting ring by electrically conductive brush, the effectual grit of having avoided bonds and piles up at the contact site of electrically conductive brush and conducting ring, the clearance appears with the conducting ring contact surface in electrically conductive brush, the inhomogeneous phenomenon of conducting ring reposition of redundant personnel takes place, thereby the life of electrical slip ring has been improved
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.
Referring to fig. 1-3, an electric slip ring with a long service life includes a protective shell 1, a transmission shaft 2 is slidably sleeved on one side of the protective shell 1, a slip ring assembly 3 located inside the protective shell 1 is slidably sleeved on one end of the transmission shaft 2, the slip ring assembly 3 rotates along with the transmission shaft 2, the slip ring assembly 3 can slide on the transmission shaft 2, a wiring terminal 4 is arranged at the top of the protective shell 1, and conductive brushes 5 contacting with the slip ring assembly 3 are arranged on the front and the back of the wiring terminal 4;
the slip ring assembly 3 comprises a first slip ring 31, a second slip ring 32, a third slip ring 33, a fourth slip ring 34, a fifth slip ring 35 and a sixth slip ring 36 from right to left in sequence, the inner diameters of the first slip ring 31, the second slip ring 32, the third slip ring 33, the fourth slip ring 34, the fifth slip ring 35 and the sixth slip ring 36 are sequentially reduced, the outer rings of the sixth slip ring 36, the fifth slip ring 35, the fourth slip ring 34, the third slip ring 33, the second slip ring 32 and the first slip ring 31 are movably sleeved from left to right, gaps between the outer rings of the first slip ring 31, the second slip ring 32, the third slip ring 33, the fourth slip ring 34, the fifth slip ring 35 and the sixth slip ring 36 respectively correspond to five conductive group brushes 5 on the connecting terminal 4 one by one, and outer edges of the side surfaces of the first slip ring 31, the second slip ring 32, the third slip ring 33, the fourth slip ring 34, the fifth slip ring 35 and the sixth slip ring 36 are provided with conductive brushes 7 which are in contact with the conductive, a compensation spring 6 movably sleeved on the transmission shaft 2 is arranged between the side surface of the first slip ring 31 and the inner wall of the protective shell 1, the conductive brush 5, the conductive rings 7 on the side surfaces of the first slip ring 31, the second slip ring 32, the third slip ring 33, the fourth slip ring 34, the fifth slip ring 35 and the sixth slip ring 36 are always kept in a stable contact state by virtue of the elastic force of the compensation spring 6 through the sequential movable sleeve design from left to right of the sixth slip ring 36, when abrasion is consumed between the conductive brush 5 and the conductive rings 7, the fifth slip ring 35, the fourth slip ring 34, the third slip ring 33, the second slip ring 32 or the first slip ring 31 is pushed to move for compensation, the stable contact state between the conductive rings 7 and the conductive brushes 5 is further ensured, and each conductive brush 5 is enabled to distribute current uniformly, thereby prolonging the service life of the electric slip ring, avoiding the generation of bulges due to local abrasion and consumption or corrosion between the conductive ring 7 and the conductive brush 5, the conductive ring 7 is separated from the conductive brush 5, which causes poor contact, further ensures the long-term effective use of the electric slip ring, meanwhile, the elastic force of the compensation spring 6 is utilized to make the conductive brush 5 have a certain pressure on the conductive ring 7, when the conducting ring and the conducting brush contact to generate abrasive particles, the conducting ring 7 rotates along with the slip ring assembly 3, when the abrasive particles on the conducting ring 7 contact one end of the conducting brush 5 in the next circle, the abrasive particles are removed from the side face of the conducting ring 7 by the conducting brush 5, the abrasive particles are effectively prevented from being bonded and accumulated at the contact part of the conducting brush 5 and the conducting ring 7, the contact surface of the conducting brush 5 and the conducting ring 7 is enabled to have a gap, the conducting ring 7 is shunted unevenly, and the service life of the electric slip ring is effectively prolonged.
A sliding bearing is arranged between the first sliding ring 31 and the inner wall of the protective shell 1, a fixed bearing is arranged between the sixth sliding ring 36 and the inner wall of the protective shell 1, the sixth sliding ring 36 is fixed relative to the protective shell 1, and the fifth sliding ring 35, the fourth sliding ring 34, the third sliding ring 33, the second sliding ring 32 and the first sliding ring 31 can move relative to the protective shell 1, so that each group of conductive brushes 5 can be kept in effective contact with the conductive ring 7 in real time, and stable use of the electrical sliding rings is guaranteed.
Wherein, the annular spout that is located conducting ring 7 department is all seted up along the left outer edge of second sliding ring 32, third sliding ring 33, fourth sliding ring 34, fifth sliding ring 35 and sixth sliding ring 36, and the activity cover is equipped with spacing ring 8 in the annular spout, the side fixedly connected with spacing spring of spacing ring 8, the opposite side of spacing ring 8 contacts with the side of conducting brush 5, elastic force through spacing spring, make spacing ring 8 have less pressure to conducting brush 5, this pressure makes conducting brush 5 and conducting ring 7 keep stable contact state, still when getting conducting ring 7 and conducting brush 5 relatively and rotating, the degree of wear of contact surface is not high.
Wherein, the inner walls of the second sliding ring 32, the third sliding ring 33, the fourth sliding ring 34, the fifth sliding ring 35 and the sixth sliding ring 36 are all provided with a clamping groove, the first sliding ring 31 is provided with a clamping block positioned at the clamping groove on the inner wall of the second sliding ring 32, the second sliding ring 32 is provided with a clamping block positioned at the clamping groove on the inner wall of the third sliding ring 33, the third sliding ring 33 is provided with a clamping block positioned at the clamping groove on the inner wall of the fourth sliding ring 34, the fourth sliding ring 34 is provided with a clamping block positioned at the clamping groove on the inner wall of the fifth sliding ring 35, the fifth sliding ring 35 is provided with a clamping block positioned, wherein, the fixture block is movably sleeved with the clamping groove, the second slip ring 32, the third slip ring 33, the fourth slip ring 34, the fifth slip ring 35 and the sixth slip ring 36 can rotate together with the first slip ring 31, without affecting the mutual movement between the sixth slip ring 36, the fifth slip ring 35, the fourth slip ring 34, the third slip ring 33, the second slip ring 32 and the first slip ring 31.
When the conductive brush is used, a lead corresponding to the conductive brush 5 is connected through the wiring terminal 4, the slip ring assembly 3 rotates along with the transmission shaft 2, at the moment, the first slip ring 31, the second slip ring 32, the third slip ring 33, the fourth slip ring 34, the fifth slip ring 35 and the sixth slip ring 36 rotate relative to the conductive brush 5, and meanwhile, the conductive brush 5 always keeps a contact state with the conductive rings 7 of the first slip ring 31, the second slip ring 32, the third slip ring 33, the fourth slip ring 34, the fifth slip ring 35 and the sixth slip ring 36.
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.