CN210265547U - Space-saving turntable bearing - Google Patents

Abstract

The utility model aims at solving the problem that the worm wheel of current carousel bearing produces idle running easily, disclose a carousel bearing more saves space, including worm wheel, outer lane, steel ball, inner circle, the outer lane sets up in the inner circle outside, the worm wheel sets up in the outer lane outside, be provided with the steel ball between outer lane and the inner circle, outer lane fixed surface installs the return spring, it is equipped with the lantern ring to circle the cover, lantern ring side fixed mounting has the connecting plate, connecting plate outside fixed mounting has coil spring, the inside cover of coil spring is equipped with the screw rod, screw rod outer end fixed mounting has wrong piece. The utility model discloses the stretching force of rational utilization return spring, and then stretch tightly the worm wheel in the outside of bearing inner race, prevent to slide between worm wheel and the outer lane, the setting of the last dull polish layer of reunion return spring further increases the frictional force between worm wheel and the outer lane, and reasonable in design, and convenient operation accords with social demand.

Description

Space-saving turntable bearing

Technical Field

The utility model relates to a bearing field especially relates to a more space-saving turntable bearing.

Background

The turntable bearing is widely applied to mechanical equipment with rotation requirements, such as automobile cranes, excavators, tower cranes, port cranes, experimental equipment and the like. At present, the turntable bearing driving rotation mode generally adopts the inner ring or the outer ring of the turntable bearing to be provided with a straight tooth gear ring, and the rotating speed of a driving part is driven by other connecting parts, so that the operation of a machine is achieved. Although this structure can drive the rotation of the component, the structure is complicated, and once the component is damaged, the assembly and disassembly are troublesome, which directly results in the increase of the maintenance cost. And the volume occupied by the turntable bearing and the connecting part of the structure is large, the working stability is poor, and the rotation precision is not high. However, when the slewing bearing is operated for a long time, the worm wheel and the outer ring are easily worn, and the gap between the worm wheel and the outer ring is increased, so that the slewing bearing cannot be in a tight fit state. Therefore, when the turntable bearing rotates, idle rotation can be generated, and the worm wheel cannot rotate along with the turntable bearing, so that the machine cannot work.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the deficiency of the prior art and providing a more space-saving turntable bearing.

The utility model discloses a realize through following technical scheme:

the utility model provides a more space-saving slewing bearing, includes the worm wheel, the outer lane, the steel ball, the inner circle, its characterized in that: the outer lane sets up in the inner circle outside, the worm wheel sets up in the outer lane outside, be provided with the steel ball between outer lane and the inner circle, outer lane fixed surface installs the return spring, it is equipped with the lantern ring to circle the cover, lantern ring side fixed mounting has the connecting plate, connecting plate outside fixed mounting has coil spring, the inside cover of coil spring is equipped with the screw rod, screw rod outer end fixed mounting has wrong piece, and this carousel bearing outer lane closely cooperates with the worm wheel, and the outside of worm wheel has the tooth, is connected with the worm, and the worm meshes with carousel bearing mutually, and this carousel bearing is when the assembly is on equipment, and the outer lane is fixed on the suspension of equipment, and carousel bearing inner circle is fixed in the frame, and the carousel bearing outer lane is with the suspension bolt fastening, then drives the.

As the utility model discloses a preferred technical scheme, the connecting plate is L type structure.

As the utility model discloses a preferred technical scheme, screw rod and connecting plate screw-thread fit.

As the preferred technical scheme of the utility model, the lantern ring and the convex part sliding fit of inner circle.

As the utility model discloses a preferred technical scheme, return spring surface is provided with the dull polish layer.

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

the utility model has the characteristics of compact structure, occupation space is little, can easily realize 360 slewing motion, the operating mode of specially adapted low-speed heavy load. Through the setting of return spring, prop tightly between messenger's worm wheel and the bearing inner race, no matter how long time of work, can not produce wearing and tearing. Safety and unloading are simple, if the problem appears, worm wheel and the easy separation of carousel bearing, convenient operation, through setting up the lantern ring, connecting plate and screw rod, thereby be convenient for compress the location to the return spring, and then change and install when installing the worm wheel, install the back to the worm wheel, pull down the device, thereby just conveniently make the return spring prop tightly between outer lane and worm wheel, avoid idle running's emergence, the utility model discloses rational utilization return spring's tightening force, and then prop tightly the worm wheel in the outside of bearing inner race, prevent to slide between worm wheel and the outer lane, reunion return spring goes up the setting of dull polish layer, further increases the frictional force between worm wheel and the outer lane, and reasonable in design, convenient operation accords with the social demand.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the connection plate of the present invention.

In the figure: 1. the steel ball bearing comprises an inner ring, 2, a steel ball, 3, an outer ring, 4, a return spring, 5, a worm wheel, 6, a lantern ring, 7, a connecting plate, 8, a screw rod, 9, a twisting block, 10 and a spiral spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides a more space-saving slewing bearing, includes worm wheel 5, outer lane 3, steel ball 2, inner circle 1, its characterized in that: the outer ring 3 is arranged on the outer side of the inner ring 1, the worm wheel 5 is arranged on the outer side of the outer ring 3, the steel ball 2 is arranged between the outer ring 3 and the inner ring 1, a return spring 4 is fixedly arranged on the surface of the outer ring 3, a lantern ring 6 is sleeved on the inner ring 1, a connecting plate 7 is fixedly arranged on the side surface of the lantern ring 6, a spiral spring 10 is fixedly arranged on the outer side of the connecting plate 7, a screw rod 8 is sleeved in the spiral spring 10, a screwing block 9 is fixedly arranged at the outer end of the screw rod 8, the turntable bearing outer ring 3 is tightly matched with a worm wheel 5, the outer side of the worm wheel 5 is provided with teeth which are connected with a worm, the worm is meshed with the turntable bearing, when the turntable bearing is assembled on equipment, the outer ring 3 is fixed on a suspension of the equipment, the inner ring of the turntable bearing is fixed on a rack, the outer ring 3 of the turntable bearing is fixed with the suspension by bolts, and then the rotation of the equipment is driven by the worm.

The connecting plate 7 is of an L-shaped structure.

The screw rod 8 is in threaded fit with the connecting plate 7.

The collar 6 is in sliding engagement with the projecting portion of the inner ring 1.

And a frosting layer is arranged on the surface of the return spring 4.

The working principle is as follows: when the worm wheel 5 needs to be installed, firstly, the lantern ring 6 is sleeved on the outer edge of the inner ring 1 through an auxiliary tool consisting of the lantern ring 6, the connecting plate 7 and the screw rod 8, then a user rotates and compresses the return spring 4, so that the return spring 4 is tightly attached to the outer ring 3, then the connecting plate 7 is clamped on the outer side of the return spring 4, the user twists the screw rod 8, the screw rod 8 pushes the return spring 4 to realize compression of the return spring 4, after the return spring 4 is compressed, the matched worm wheel 5 is sleeved on the outer side of the return spring 4 by the user, at the moment, the screw rod 8 is loosened by the user, the auxiliary tool consisting of the lantern ring 6, the connecting plate 7 and the screw rod 8 is taken down, at the moment, the return spring 4 is tightly propped between the outer ring 3 and the worm wheel 5, and further, idle rotation between the worm wheel 5 and the outer ring 3 is prevented when the worm wheel operates, the turntable bearing is more compact in structure and suitable for the working condition of low speed and heavy load.

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 (5)

1. The utility model provides a more space-saving slewing bearing, includes worm wheel (5), outer lane (3), steel ball (2), inner circle (1), its characterized in that: the outer ring (3) is arranged outside the inner ring (1), the worm wheel (5) is arranged outside the outer ring (3), the steel ball (2) is arranged between the outer ring (3) and the inner ring (1), the return spring (4) is fixedly arranged on the surface of the outer ring (3), the inner ring (1) is sleeved with the lantern ring (6), the side surface of the lantern ring (6) is fixedly provided with the connecting plate (7), the outer side of the connecting plate (7) is fixedly provided with the spiral spring (10), the spiral spring (10) is internally sleeved with the screw rod (8), the outer end of the screw rod (8) is fixedly provided with the twisting block (9), the outer ring (3) of the turntable bearing is tightly matched with the worm wheel (5), the outer side of the worm wheel (5) is provided with teeth and is connected with the worm, the worm is meshed with the turntable bearing, and the outer ring (3) is fixed on a suspension of, the inner ring of the turntable bearing is fixed on the rack, the outer ring (3) of the turntable bearing is fixed with the suspension by bolts, and then the worm drives the equipment to rotate.

2. A more space efficient slewing bearing according to claim 1, wherein: the connecting plate (7) is of an L-shaped structure.

3. A more space efficient slewing bearing according to claim 1, wherein: the screw rod (8) is in threaded fit with the connecting plate (7).

4. A more space efficient slewing bearing according to claim 1, wherein: the lantern ring (6) is in sliding fit with the protruding part of the inner ring (1).

5. A more space efficient slewing bearing according to claim 1, wherein: and a frosting layer is arranged on the surface of the return spring (4).

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