CN208809381U - A kind of rotating mechanism on treadmill - Google Patents

Abstract

The rotating mechanism that the utility model relates to a kind of on treadmill, including fixing piece and rotating member, the top side of the fixing piece is provided with lateral shaft and is surrounded on the annular groove of lateral shaft, first plain thrust bearing is installed in the annular groove, the lower part side of the rotating member offers the lateral turn hole being rotatably assorted with lateral shaft, the lower part other side of the rotating member offers the circular groove to connect with lateral turn hole, the circular groove is sequentially installed with the second plain thrust bearing by interior outward, elastomeric pad and casting die, the casting die is fixedly connected on fixing piece, so that the both ends of the surface of the first plain thrust bearing and the second plain thrust bearing respectively against lateral turn hole.The utility model withstands rotating member using two plain thrust bearings, the pressure of locking can be converted to the power of circle rotation, while elastomeric pad makes the tightness of assembly more preferable, and rotating member rotation is more smooth, hardly generates lateral beat.

Description

A kind of rotating mechanism on treadmill

Technical field

The utility model belongs to treadmill technical field, and in particular to a kind of rotating mechanism on treadmill.

Background technique

The traditional upright column rotation gear of treadmill is all to achieve the purpose that rotation with axle sleeve cooperation using simple axis, this Rotating manner has the disadvantage in that fit clearance can not be controlled rationally, and can not solve the problems, such as that lateral force generates swing.For This, it is necessary to devise a kind of novel rotating mechanism.

Utility model content

In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide one kind to be used for treadmill Rotating mechanism, it can rationally control fit clearance, and effectively solve the problems, such as lateral force generate swing.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of rotation on treadmill Rotation mechanism, including fixing piece and rotating member, the top side of the fixing piece are provided with lateral shaft and are surrounded on lateral shaft Annular groove, the first plain thrust bearing is installed in the annular groove, the lower part side of the rotating member offer with laterally The lateral turn hole that shaft is rotatably assorted, the lower part other side of the rotating member offer the circular groove to connect with lateral turn hole, institute It states circular groove and is sequentially installed with the second plain thrust bearing, elastomeric pad and casting die outward by interior, the casting die is fixedly connected on Determine on part, so that the both ends of the surface of the first plain thrust bearing and the second plain thrust bearing respectively against lateral turn hole.

As a kind of further preferred scheme: the top other side of the fixing piece, which offers, is located at lateral spindle central Circular hole, the center of the transverse direction shaft offers the locating slot to connect with circular hole, and the casting die is three-level step structure, Second plain thrust bearing and elastomeric pad are sheathed on the middle part of casting die, and the inner end of the casting die protrudes into locating slot, The center of the casting die offers counter sink, and the screw protruded into circular hole is equipped in the counter sink.

As further preferred another scheme: the circular hole is threaded hole, and the screw and corresponding threaded holes close.

Scheme as a further preference: the circular hole is unthreaded hole, and the screw is connected with nut after passing through unthreaded hole.

Scheme as a further preference: first plain thrust bearing and the second plain thrust bearing are that plane pushes away Power needle bearing.

As further preferred scheme: the elastomeric pad is corrugated gasket.

Compared with prior art, turn the utility model has the following beneficial effects: being withstood using two plain thrust bearings Moving part can be converted to the pressure of locking the power of circle rotation, while elastomeric pad makes the tightness of assembly more preferable, turn Moving part rotation is more smooth, hardly generates lateral beat.

Detailed description of the invention

Fig. 1 is the Structure explosion diagram of the utility model embodiment one.

Fig. 2 is the structure sectional view of the utility model embodiment one.

Fig. 3 is the structure sectional view of the utility model embodiment two.

Marked in the figure: 10, fixing piece；11, lateral shaft；12, annular groove；13, circular hole；14, locating slot；20, rotating member； 21, lateral turn hole；22, circular groove；30, the first plain thrust bearing；40, the second plain thrust bearing；50, elastomeric pad/waveform Gasket；60, casting die；61, counter sink；70, screw；80, nut.

Specific embodiment

In order to allow the utility model features described above and advantage be clearer and more comprehensible, below spy for embodiment, and cooperate attached drawing, It is described in detail below.

Embodiment one: as shown in Fig. 1~2, a kind of rotating mechanism on treadmill, including fixing piece 10 and rotating member 20, the top side of the fixing piece 10 is provided with lateral shaft 11 and is surrounded on the annular groove 12 of lateral shaft 11, the ring First plain thrust bearing 30 is installed, the lower part side of the rotating member 20 is offered to be rotated with lateral shaft 11 in shape slot 12 The lateral turn hole 21 of cooperation, the lower part other side of the rotating member 20 offer the circular groove 22 to connect with lateral turn hole 21, institute It states circular groove 22 and is sequentially installed with the second plain thrust bearing 40, elastomeric pad 50 and casting die 60 outward by interior, the casting die 60 is solid Surely it is connected on fixing piece 10, so that the first plain thrust bearing 30 and the second plain thrust bearing 40 are respectively against lateral turn hole 21 both ends of the surface.

In the present embodiment one, the top other side of the fixing piece 10 offers the circular hole for being located at 11 center of lateral shaft 13, the center of the transverse direction shaft 11 offers the locating slot 14 to connect with circular hole 13, and the casting die 60 is that three-level is ladder-like Structure, second plain thrust bearing 40 and elastomeric pad 50 are sheathed on the middle part of casting die 60, the inner end of the casting die 60 It protrudes into locating slot 14, the center of the casting die 60 offers counter sink 61, is equipped in the counter sink 61 and protrudes into circular hole 13 Interior screw 70.

In the present embodiment one, the circular hole 13 is threaded hole, and the screw 70 is closed with corresponding threaded holes, i.e., casting die 60 is logical Screw 70 is crossed to be fixedly connected on fixing piece 10.First plain thrust bearing 30 and the second plain thrust bearing 40 are preferentially adopted With but be not limited to plane needle roller thrust bearing, the elastomeric pad 50 preferentially uses but is not limited to corrugated gasket.

Embodiment two: as shown in Figure 3 and Fig. 1, a kind of rotating mechanism on treadmill, with embodiment one are referred to Difference is: the circular hole 13 is unthreaded hole, and the screw 70 is connected with nut 80 after passing through unthreaded hole, i.e. casting die 60 passes through screw 70 It is fixedly connected on fixing piece 10 with nut 80.

When assembly, first the first plain thrust bearing 30 is put into the annular groove 12 of fixing piece 10, then by rotating member 20 It packs into the lateral shaft 11 of fixing piece 10, then puts the second plain thrust bearing 40 into the circular groove 22 of rotating member 20, then Then corrugated gasket is placed on the second plain thrust bearing 40, finally packs into casting die 60, all assembly are run through by screw 70 Part and fixing piece 10 are locked.Due to the characteristic that plane needle thrust bearing itself has, the pressure of locking can be passed through inside A circle needle roller be converted to the power of circle rotation, along with pushing down corrugated gasket 50 by the locking of screw 70, corrugated gasket 50 The elastic force of stature material makes assembly tightness higher, and screw 70 is also not easy to move back silk, comprehensive smooth, the rotating mechanism that reached rotation Hardly generate lateral beat.

The above, the only preferred embodiment of the utility model, not do limit in any form to the utility model System, anyone skilled in the art is in every case without departing from the content of technical solutions of the utility model, according to the utility model Technical spirit any simple modification, equivalent changes and modifications are made to above embodiments, should all belong to the culvert of the utility model Lid range.

Claims (6)

1. a kind of rotating mechanism on treadmill, it is characterised in that: including fixing piece and rotating member, the fixing piece it is upper Portion side is provided with lateral shaft and is surrounded on the annular groove of lateral shaft, and the first plane thrust axis is equipped in the annular groove It holds, the lower part side of the rotating member offers the lateral turn hole being rotatably assorted with lateral shaft, and the lower part of the rotating member is another Side offers the circular groove to connect with lateral turn hole, the circular groove by it is interior be sequentially installed with outward the second plain thrust bearing, Elastomeric pad and casting die, the casting die are fixedly connected on fixing piece, so that the first plain thrust bearing and the second plane thrust Both ends of the surface of the bearing respectively against lateral turn hole.

2. the rotating mechanism according to claim 1 on treadmill, it is characterised in that: the top of the fixing piece is another Side offers the circular hole for being located at lateral spindle central, and the center of the transverse direction shaft offers the positioning to connect with circular hole Slot, the casting die are three-level step structure, and second plain thrust bearing and elastomeric pad are sheathed on the middle part of casting die, institute The inner end for stating casting die protrudes into locating slot, and the center of the casting die offers counter sink, is equipped with and protrudes into the counter sink Screw in circular hole.

3. the rotating mechanism according to claim 2 on treadmill, it is characterised in that: the circular hole is threaded hole, The screw and corresponding threaded holes close.

4. the rotating mechanism according to claim 2 on treadmill, it is characterised in that: the circular hole is unthreaded hole, institute It states screw and is connected with nut after unthreaded hole.

5. the rotating mechanism according to claim 1 on treadmill, it is characterised in that: the first plane thrust axis Holding with the second plain thrust bearing is plane needle roller thrust bearing.

6. the rotating mechanism according to claim 1 on treadmill, it is characterised in that: the elastomeric pad is waveform Gasket.