CN201144970Y

CN201144970Y - Oldham coupling

Info

Publication number: CN201144970Y
Application number: CNU2008200312450U
Authority: CN
Inventors: 孙建福; 丛英浩
Original assignee: Shanghai Meishan Iron and Steel Co Ltd
Current assignee: Shanghai Meishan Iron and Steel Co Ltd
Priority date: 2008-01-18
Filing date: 2008-01-18
Publication date: 2008-11-05
Anticipated expiration: 2018-01-18

Abstract

The utility model relates to an Oldham coupling, which belongs to the mechanical transmission gear technical field. The coupling comprises a first coupling head and a second coupling head which are respectively used for connecting a drive unit and an actuating mechanism, wherein, opposite end faces of the first coupling head and the second coupling head are respectively provided with concave convex structures which run through the end faces. Moreover, the coupling also comprises a first cross-slider and a second cross-slider which respectively correspond to the first coupling head and the second coupling head; an end face of the first cross-slider corresponding to the first coupling head and an end face of the second cross-slider corresponding to the second coupling head are respectively provided with corresponding convex concave structures which are matched with the concave convex structures, thereby a shifting pair is formed after assembly; and opposite faces of the first cross-slider and the second cross-slider cling to each other on the position where the convex concave structures on the other faces of the first cross-slider and the second cross-slider are basically perpendicular to each other and are fixedly connected with each other through a fastener. The cross-sliders in the Oldham coupling form a splitable structure, thereby the fastener is only needed to be loosened when the Oldham coupling is disassembled and replaced and no mobile equipment is required, consequently the Oldham coupling is very convenient and can guarantee enough connecting strength and assembly precision.

Description

Sliding cross coupling

Technical field

The utility model relates to a kind of sliding cross coupling, and especially a kind of architecture advances of sliding cross coupling belongs to the mechanical transmission technical field.

Background technique

Sliding cross coupling is because of transmitting torque is big, simple in structure, working stability, in the mechanical industry with its than widespread in being connected of speed reducer output shaft and actuator, in order to finish the transmission of mechanical energy.But there is following problem in the structure of traditional sliding cross coupling: at first, and as crosshead shoe very inconvenience when overhaul of the equipments is changed of easily damaged parts.During maintenance repair, transmission device or actuator need remove enough spacings by crane gear, could be with the crosshead shoe dismounting and change, so the repair time is longer, and human and material resources have high input, and industries such as quantity-produced metallurgy are very unfavorable for requiring.Secondly, existing crosshead shoe is a floating structure, and concentricity is adjusted inconvenience when equipment is installed, and causes installation precision to descend easily.

Retrieval is found, application number is that 022139443 Chinese patent application discloses a kind of through improved sliding cross coupling, though this technological scheme has been improved conventional construction to a certain extent, but not only structure is comparatively complicated, fit is owed rationally, and in the space narrow and small occasion still dismantle inadequately convenient.

The model utility content

The purpose of this utility model is: the shortcoming at above prior art exists proposes a kind of sliding cross coupling that mobile device can be finished the crosshead shoe dismounting that need not, thereby brings convenience for installation adjustment and maintain and replace.

In order to reach above purpose, sliding cross coupling of the present utility model contains the first and second shaft coupling heads that are respectively applied for connection drive unit and actuator, the described first and second shaft coupling head opposing end faces are shaped on the concaveconvex structure that runs through end face respectively, in addition, also contain first and second crosshead shoes of the corresponding first and second shaft coupling heads respectively, the end face of the relative first shaft coupling head of described first crosshead shoe and the end face of the relative second shaft coupling head of second crosshead shoe are shaped on the corresponding convex-concave structure that matches with described concaveconvex structure respectively, form sliding pair after the assembling, the opposing side of described first and second crosshead shoes becomes vertical substantially position to fit mutually with the another side convex-concave structure, and is fixedly connected by fastening piece.

The utility model further improves, the described first and second crosshead shoe main bodys are in the form of annular discs, have through hole spaced apart (preferably articulation hole) near the periphery of described disk, the articulation hole bolt that plug-in mounting matches with it in the described through hole (claiming finished bolt again), fastening by nut.

Because but the crosshead shoe in the utility model has formed the subdivision structure, so during dismounting and change, very convenient as long as loosening fasteners need not mobile device, employing articulation hole bolted on connection then helps to guarantee enough linking intensities and installation precision.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is an embodiment's of the utility model a structural representation.Among the figure: the 1-first shaft coupling head, 2-first crosshead shoe, 3-articulation hole bolt, 4-second crosshead shoe, the 5-second shaft coupling head.

Embodiment

Embodiment one

The sliding cross coupling of present embodiment as shown in Figure 1, the first and second shaft coupling heads 5 and 1 at two ends, the left and right sides have center hole, are respectively applied for the axle that matches that plug-in mounting connects drive unit and actuator.The first shaft coupling head 5 forms the flange-like end face respectively with the second shaft coupling head, 1 a relative end, is shaped on the depression straight trough that runs through end face on the flange-like end face respectively.First and second crosshead shoes 4 and 2 main bodys of the corresponding first shaft coupling head 5 and the second shaft coupling head 1 are in the form of annular discs respectively, the end face of the end face of first crosshead shoe, the 4 relative first shaft coupling heads 5 and second crosshead shoe, the 2 relative second shaft coupling heads 1 is shaped on the corresponding convex tendon that matches with straight trough respectively, and convex tendon snaps in and forms sliding pair in the straight trough after the assembling.First crosshead shoe 4 forms flange edge towards an end of second crosshead shoe 2, and the opposing side of first crosshead shoe 4 and second crosshead shoe 2 is fitted mutually, and the convex tendon of another side constitutes vertical substantially position relation.The corresponding position of the flange edge of first crosshead shoe 4 and second crosshead shoe 2 is shaped on the articulation hole that is uniformly distributed along the circumference, and the pin bolt 3 that plug-in mounting matches with it in each through hole is fastening by nut.

When coupling uses a period of time, when the crosshead shoe wearing and tearing need to change, only need bolt 3 is removed, just crosshead shoe 4,2 can be extracted out respectively, finish replacing.

Compare with existing, the sliding cross coupling of present embodiment has following beneficial effect:

Workload when (1) having significantly reduced crosshead shoe maintenance replacing, transmission device or actuator no longer need with crane gear it to be hung out, and the repair time obviously shortens;

(2) crosshead shoe can be installed after position size adjusting such as shaft coupling head concentricity when equipment is installed again, so the concentricity adjustment is more convenient, and smart easy the assurance is installed;

(3) crosshead shoe is divided into two, and machining is more convenient.

In addition to the implementation, the utility model can also have other mode of executions.For example, the first and second shaft coupling head opposing end faces can be shaped on convex tendon respectively, and the first and second corresponding crosshead shoe end faces are made the groove that matches respectively; Perhaps, the first shaft coupling head and second one of the shaft coupling head opposing end faces are made groove, and another makes convex tendon, and the first and second corresponding crosshead shoe end faces are made convex tendon and the groove that matches respectively; Or the like.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims

1, a kind of sliding cross coupling, contain and be respectively applied for the first and second shaft coupling heads that connect drive unit and actuator, the described first and second shaft coupling head opposing end faces are shaped on the concaveconvex structure that runs through end face respectively, it is characterized in that: also contain first and second crosshead shoes of the corresponding first and second shaft coupling heads respectively, the end face of the relative first shaft coupling head of described first crosshead shoe and the end face of the relative second shaft coupling head of second crosshead shoe are shaped on the corresponding convex-concave structure that matches with described concaveconvex structure respectively, form sliding pair after the assembling, the opposing side of described first and second crosshead shoes becomes vertical substantially position to fit mutually with the another side convex-concave structure, and is fixedly connected by fastening piece.

2, according to the described sliding cross coupling of claim 1, it is characterized in that: the described first and second crosshead shoe main bodys are in the form of annular discs, have through hole spaced apart near the periphery of described disk, the articulation hole bolt that plug-in mounting matches with it in the described through hole, fastening by nut.

3, according to the described sliding cross coupling of claim 2, it is characterized in that: the end that the described first shaft coupling head is relative with the second shaft coupling head is shaped on the depression straight trough that runs through end face respectively, and the end face of the relative first shaft coupling head of described first crosshead shoe and the end face of the relative second shaft coupling head of second crosshead shoe are shaped on the corresponding convex tendon that matches with straight trough respectively.

4, according to the described sliding cross coupling of claim 2, it is characterized in that: the end that the described first shaft coupling head is relative with the second shaft coupling head is shaped on the convex tendon that runs through end face respectively, and the end face of the relative first shaft coupling head of described first crosshead shoe and the end face of the relative second shaft coupling head of second crosshead shoe are shaped on the corresponding straight trough that matches with convex tendon respectively.

5, according to claim 3 or 4 described sliding cross couplings, it is characterized in that: the described first shaft coupling head and the second shaft coupling head have center hole, and a relative end forms the flange-like end face respectively.

6, according to the described sliding cross coupling of claim 5, it is characterized in that: described first crosshead shoe forms flange edge towards an end of second crosshead shoe, and the corresponding position of the flange edge of described first crosshead shoe and second crosshead shoe is shaped on the articulation hole that is uniformly distributed along the circumference.