CN213933092U

CN213933092U - Rotating mechanism

Info

Publication number: CN213933092U
Application number: CN202023236626.2U
Authority: CN
Inventors: 陆传宝
Original assignee: Zhuji Maisite Automation Technology Co ltd
Current assignee: Zhuji Maisite Automation Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-10
Anticipated expiration: 2030-12-29

Abstract

The embodiment of the utility model provides a slewing mechanism belongs to spring check out test set technical field, include: a base; a rotation mechanism, the rotation mechanism comprising: a rotating shaft; the eccentric subassembly, be provided with on the eccentric subassembly: the rotating shaft groove is used for sleeving the eccentric assembly on the rotating shaft, so that the eccentric state of the eccentric assembly relative to the rotating shaft can be adjusted; the movable groove enables the eccentric component to be fixedly connected relative to the rotating shaft; and a bushing portion; the rotating wheel is sleeved on the bushing part of the eccentric assembly; the counterweight component is sleeved on the rotating shaft by arranging a third rotating shaft groove, so that the eccentric state of the counterweight component relative to the rotating shaft can be adjusted; the rotating mechanism acts on the impact mechanism through the rotating wheel, so that the impact mechanism impacts the spring to be detected; the technical effect that the testing stroke of the rotating mechanism is adjustable is achieved.

Description

Rotating mechanism

Technical Field

The utility model relates to a spring check out test set technical field especially relates to a slewing mechanism.

Background

The spring fatigue testing machine adopts a rotating mechanism to drive an impact mechanism containing a spring to be tested to act, so that the fatigue strength test of the spring to be tested is completed on the basis of simulating an actual environment.

The test stroke of a rotating mechanism on the existing spring fatigue test machine is not adjustable, so that one spring fatigue test machine can only be used for detecting springs of one specification, and the practicability is low.

Therefore, the technical problems of the prior art are as follows: the test stroke of the rotating mechanism is not adjustable.

Disclosure of Invention

The embodiment of the application provides a rotating mechanism, which solves the technical problem that the test stroke of the rotating mechanism is not adjustable in the prior art; the technical effect that the testing stroke of the rotating mechanism is adjustable is achieved.

The embodiment of the application provides a slewing mechanism, slewing mechanism includes: a rotating shaft; the eccentric subassembly, be provided with on the eccentric subassembly: the rotating shaft groove is used for sleeving the eccentric assembly on the rotating shaft, and is a long groove, so that the eccentric state of the eccentric assembly relative to the rotating shaft can be adjusted; the length direction of the movable groove is parallel to that of the rotating shaft groove, and the eccentric component is fixedly connected relative to the rotating shaft through the movable groove; and a bushing portion; the rotating wheel is sleeved on the bushing part of the eccentric assembly; the counterweight component is sleeved on the rotating shaft by arranging a third rotating shaft groove, and the third rotating shaft groove is a long groove, so that the eccentric state of the counterweight component relative to the rotating shaft can be adjusted; the impact mechanism is arranged on the base, and a spring to be detected can be accommodated in the impact mechanism; the rotating mechanism acts on the impact mechanism through the rotating wheel, so that the impact mechanism impacts the spring to be detected.

Preferably, the rotating shaft groove is a through groove which is through up and down, and the rotating shaft groove is arranged on the eccentric component in the middle; the bushing part is positioned on the outer side of the rotating shaft groove, and the center of the bushing part is superposed with the center of the rotating shaft groove.

Preferably, the eccentric assembly includes an upper eccentric mass and a lower eccentric mass, and the bushing portion is formed by combining the upper eccentric mass and the lower eccentric mass.

Preferably, the rotating shaft is provided with an adjusting hole, and the length direction of the adjusting hole is parallel to the length direction of the rotating shaft groove; be provided with a wear-to-establish hole on the eccentric subassembly, just eccentric subassembly still includes: the adjusting shaft penetrates through the penetrating hole and the adjusting hole; two ends of the adjusting shaft are movably fixed on the eccentric assembly; the adjusting shaft is in threaded connection with the adjusting hole of the rotating shaft, and the distance of the eccentric assembly relative to the rotating shaft is changed through the adjusting shaft.

Preferably, at least one end of the adjustment shaft is exposed with respect to the eccentric assembly.

Preferably, a limiting block is fixedly connected to the adjusting hole, the limiting block is provided with a threaded cavity, and the adjusting hole is in threaded connection with the adjusting shaft through the threaded cavity in the limiting block.

Preferably, the through hole on the eccentric assembly is positioned above the bushing part, and the adjusting shaft is positioned above the rotating wheel.

Preferably, the eccentric assembly is provided with a first scale mark, the first scale mark is positioned on one side of the rotating shaft groove of the eccentric assembly, and the first scale mark is arranged along the length direction of the rotating shaft groove.

Preferably, the counterweight assembly is arranged above the eccentric assembly, and the counterweight assembly is fixedly connected to the eccentric assembly or the rotating shaft.

One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:

1. in the embodiment of the application, the structure of the rotating wheel in the rotating mechanism is optimized, the rotating wheel is arranged on the eccentric assembly, and the eccentric state of the rotating wheel relative to the rotating shaft is adjustable based on the eccentric assembly, so that the eccentricity of the rotating wheel relative to the rotating shaft is adjustable, and the rotating stroke of the whole rotating mechanism can be adjusted. In addition, a counterweight component is arranged for matching with the eccentric component, and a mathematical model for determining the weight of the counterweight component, the adjustment distance of the counterweight component and the eccentric distance of the eccentric component is obtained based on experience and numerous tests, so that dynamic balance adjustment is realized, and the rotating mechanism after adjustment is still in a stable working state; the technical problem that the test stroke of the rotating mechanism is not adjustable in the prior art is solved; the technical effect that the testing stroke of the rotating mechanism is adjustable is achieved.

2. In the embodiment of the application, the eccentric assembly is arranged into a combination form of the upper eccentric block and the lower eccentric block, so that the rotating wheel is installed on the bushing part of the eccentric assembly conveniently. And the long screw is used for fixing the upper eccentric block and the lower eccentric block in a combined manner, so that the overall structural strength of the eccentric assembly is ensured. And the lower eccentric block can be used for spacing the rotating wheel from the bearing part of the rotating shaft, so that the possibility of contact between the rotating wheel and the bearing part of the rotating shaft is avoided. And when this device maintenance and debugging, can utilize convenient dismantlement down the runner from the pivot of eccentric subassembly to utilize eccentric subassembly to detect, maintain and maintain the runner.

3. In the embodiment of the application, through set up the regulation hole in the pivot, and set up wearing to establish hole and regulating spindle on the eccentric subassembly, on the fixed basis of pivot, rotate the regulating spindle and make eccentric subassembly for the pivot motion to make the runner adjust for the eccentric distance of pivot, with adjustment slewing mechanism's test stroke. The mode of rotating the adjustment shaft and adjusting the position of the rotating wheel is very convenient, an operator can adjust the position of the rotating wheel on the whole machine, the position of the first scale mark on the eccentric assembly relative to the rotating shaft can be referred to in the adjusting process, and the whole adjusting process is simple and convenient.

Drawings

FIG. 1 is a schematic isometric view of a rotational mechanism according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of a rotating mechanism according to an embodiment of the present application;

FIG. 3 is an exploded view of an eccentric assembly according to an embodiment of the present application;

FIG. 4 is an exploded view of a counterweight assembly according to an embodiment of the present application;

FIG. 5 is a schematic top view of a rotating mechanism in an embodiment of the present application;

FIG. 6 is a schematic cross-sectional view taken along line B-B of FIG. 5;

FIG. 7 is a schematic cross-sectional view of FIG. 6 after adjusting the eccentricity to the right;

FIG. 8 is a schematic cross-sectional view taken along line C-C of FIG. 5;

FIG. 9 is a schematic diagram of a left side structure of a rotating mechanism in the embodiment of the present application;

fig. 10 is a schematic sectional view along direction D-D in fig. 9.

Reference numerals: 2. a rotating mechanism; 21. a rotating shaft; 211. a bearing part; 212. an adjustment hole; 213. a limiting block; 22. eccentric assembly 221, upper eccentric block; 2211. an upper bushing portion; 2212. a first shaft groove; 2213. perforating holes; 2214. a first movable slot; 222. a lower eccentric block; 2221. a lower bushing portion; 2222. A second rotary shaft groove; 2223. a second movable slot; 223. an adjustment shaft; 23. a rotating wheel; 24. a counterweight assembly; 241. a counterweight moving block; 2411. a third rotation shaft groove; 2412. a third movable slot; 242. a counterweight fixed block; 243. briquetting; 244. and (6) pressing the cap.

Detailed Description

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Slewing mechanism 2, slewing mechanism 2 includes: a rotating shaft 21, an eccentric assembly, a rotating wheel 23 and a counterweight assembly 24; the rotating mechanism 2 is positioned above the power source 6 and is connected with the power source 6 through a coupler. The rotating wheel 23 is eccentrically arranged relative to the rotating shaft 21 based on the eccentric component, and the two side stress states of the rotating shaft 21 after the rotating wheel 23 is deviated are balanced by the counterweight component 24, so that the rotating mechanism 2 can be ensured to rotate stably and in a long-acting manner. When the rotating mechanism 2 outputs outwards, the impact mechanism 3 is acted by the rotating wheel 23, so that the impact mechanism 3 impacts the spring 5 to be detected.

The rotating shaft 21 is a vertically arranged long shaft, an adjusting hole 212 is arranged on the rotating shaft 21, and the length direction of the adjusting hole 212 is parallel to the length direction of the rotating shaft groove; wherein, the adjusting hole 212 is directly or indirectly provided with screw threads, the adjusting hole 212 of the rotating shaft 21 is in screw thread connection with the adjusting shaft 223, and the distance of the eccentric component relative to the rotating shaft 21 is changed through the adjusting shaft 223. Specifically, the adjusting hole 212 is fixedly connected with a limiting block 213, and the limiting block 213 has a threaded cavity, so that the adjusting hole 212 indirectly has threads, and the adjusting hole 212 can be in threaded connection with the adjusting shaft 223 through the threaded cavity on the limiting block 213. Preferably, the limiting block 213 is placed in the adjusting hole 212 from one side of the adjusting hole 212, and the limiting block 213 is fixed on the rotating shaft 21 by a screw. In order to ensure the rotation of the limiting block 213, the outer contour of the limiting block 213 and the slot surface of the rotating shaft 21 relative to the outer contour of the limiting block 213 may also be optimized, for example, the slot surface is set to be square.

In addition, it should be noted that the rotating shaft 21 is provided with a bearing portion 211 to provide a supporting force for the eccentric assembly and a position for the fixed connection of the eccentric assembly with respect to the rotating shaft 21.

The eccentric assembly 22, eccentric assembly 22 include eccentric block and regulating shaft 223, and the eccentric block cover is established on pivot 21, and regulating shaft 223 adjusts the eccentric degree of eccentric block for pivot 21.

And an eccentric mass for supporting the runner 23 and providing a basis for movement of the runner 23 relative to the rotary shaft 21. The eccentric block can be a whole or a split combination form. The eccentric block is provided with a rotating shaft groove, a movable groove, a bushing part, a through hole 2213 and a first scale mark. The rotating shaft groove is a long groove, and is preferably in a vertical through type, so that the eccentric state of the eccentric assembly relative to the rotating shaft 21 can be adjusted; the length direction of the movable groove is parallel to that of the rotating shaft groove, and the eccentric component is fixedly connected relative to the rotating shaft 21 through the movable groove; the bushing portion is preferably formed by an inward recess of the eccentric mass so that the eccentric mass acts as a stop for the rotor 23. In one embodiment, the spindle slot is centrally disposed on the eccentric assembly; the lining part is positioned at the outer side of the rotating shaft groove, and the center of the lining part is superposed with the center of the rotating shaft groove. The movable slot is used for fixedly connecting the eccentric block and the rotating shaft 21 in a mode that a screw penetrates through the movable slot after the eccentric block eccentrically moves. The through hole 2213 penetrates through the rotating shaft groove, so that the adjusting shaft 223 penetrates through the through hole 2213 and the adjusting hole 212 on the rotating shaft 21; and the through hole 2213 is located above the bushing portion. The first scale mark is positioned on one side of the rotating shaft groove of the eccentric assembly, and the first scale mark is arranged along the length direction of the rotating shaft groove.

When the eccentric mass is in a combined form, the eccentric mass includes upper and lower eccentric masses 222, and the bushing portion is formed by combining the upper and lower eccentric masses 222 so that the rotating wheel 23 is fixed to the eccentric assembly. The upper eccentric block is provided with a first rotating shaft slot, a first movable slot 2214 and a through hole 2213; the lower eccentric block 222 is provided with a second rotation shaft groove 2222 and a second movable groove 2223 as a combined part of the bushing portions.

The adjusting shaft 223, the adjusting shaft 223 is positioned above the runner 23; the adjustment shaft 223 is provided with a threaded section for engaging the adjustment hole 212 of the rotation shaft 21. So that the eccentric block rotates with respect to the rotation shaft 21 when the adjustment shaft 223 rotates. The adjusting through holes 2213 and the adjusting holes 212; two ends of the adjusting shaft 223 are movably fixed on the eccentric component; it will be appreciated that at least one end of the adjustment shaft 223 is exposed relative to the eccentric assembly to facilitate rotation of the adjustment shaft 223 with a tool.

And the rotating wheel 23 is sleeved on the bushing part of the eccentric assembly 22. It should be noted that the rotating wheel 23 itself may be an eccentric wheel, or may be a conventional wheel body with concentric inner and outer surfaces. It will be appreciated that the wheels 23 are of large dimensions and that the outer edges of the wheels 23 are outermost in the entire turning gear 2, so that only the wheels 23 will come into contact with the impact mechanism 3 during turning of the turning gear 2.

The counterweight assembly 24, the counterweight assembly 24 has a certain weight, the counterweight assembly 24 is disposed on the rotating shaft 21 by disposing a third rotating shaft groove 2411, and the third rotating shaft groove 2411 is a long groove, so that the eccentric state of the counterweight assembly 24 relative to the rotating shaft 21 can be adjusted. It should be noted that the counterweight assembly 24 includes a counterweight moving block 241 and a counterweight fixed block 242, and the third rotating shaft slot 2411 and the third movable slot 2412 are disposed on the counterweight moving block 241, so that the position of the counterweight moving block 241 relative to the rotating shaft 21 is adjustable; the balance weight fixed block 242 is arranged on the balance weight movable block 241, and preferably, the balance weight fixed block 242 is positioned at one side of the rotating shaft 21; by adjusting the position of the counter weight moving block 241 relative to the rotating shaft 21, the center of gravity of the counter weight assembly 24 is shifted to one side relative to the rotating shaft 21 to match the shifting amplitude of the eccentric assembly and the rotating shaft 21, so as to balance the stress on the two sides of the rotating shaft 21, and to make the rotating shaft 21 stable when rotating. It will be appreciated that the counter weight 241 is provided with a second scale mark relative to the shaft 21 to reflect the position of the counter weight 241 relative to the shaft 21. In one embodiment, the weight assembly 24 is disposed above the eccentric assembly 22, and the weight assembly 24 is fixedly attached to the eccentric assembly or shaft 21. And the counterweight component 24 is further provided with a pressing block 243 and a pressing cap 244, the pressing block 243 is sleeved on the rotating shaft 21, the pressing block 243 acts on the counterweight moving block 241 of the counterweight component 24, the pressing cap 244 is in screw connection with the rotating shaft 21, the pressing block 243 is further limited on the counterweight component 24 through the pressing cap 244, and the position stability of the counterweight component 24 is ensured.

The working principle is as follows:

when the test stroke of the rotating mechanism 2 needs to be adjusted, the pressing cap 244, the pressing block 243 and the counterweight component 24 are firstly loosened or disassembled, and the fixing screw of the eccentric component relative to the rotating shaft 21 is loosened; thereafter, the adjustment shaft 223 is rotated by a tool so that the eccentric mass moves the runner 23 relative to the rotating shaft 21. After the eccentric assembly is adjusted, the position of the weight assembly 24 relative to the rotating shaft 21 is adjusted according to the movement amount of the first scale mark on the eccentric mass relative to the rotating shaft 21, and the process of adjusting the weight assembly 24 can be performed according to the second scale mark on the counter weight moving mass 241.

The technical effects are as follows:

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A rotary mechanism, comprising:

a rotating shaft;

the eccentric subassembly, be provided with on the eccentric subassembly:

the rotating shaft groove is used for sleeving the eccentric assembly on the rotating shaft, and is a long groove, so that the eccentric state of the eccentric assembly relative to the rotating shaft can be adjusted;

the length direction of the movable groove is parallel to that of the rotating shaft groove, and the eccentric component is fixedly connected relative to the rotating shaft through the movable groove; and

a bushing portion;

the rotating wheel is sleeved on the bushing part of the eccentric assembly; and

the counterweight assembly is provided with a certain weight, the counterweight assembly is sleeved on the rotating shaft by arranging a third rotating shaft groove, and the third rotating shaft groove is a long groove, so that the eccentric state of the counterweight assembly relative to the rotating shaft can be adjusted.

2. The rotating mechanism according to claim 1, wherein the rotating shaft groove is a through groove which is through from top to bottom, and the rotating shaft groove is centrally arranged on the eccentric component; the bushing part is positioned on the outer side of the rotating shaft groove, and the center of the bushing part is superposed with the center of the rotating shaft groove.

3. The rotating mechanism of claim 1 wherein the eccentric assembly includes an upper eccentric mass and a lower eccentric mass, and the bushing portion is formed by the combination of the upper and lower eccentric masses.

4. The rotating mechanism according to claim 1, wherein the rotating shaft is provided with an adjusting hole, and the length direction of the adjusting hole is parallel to the length direction of the rotating shaft groove; be provided with a wear-to-establish hole on the eccentric subassembly, just eccentric subassembly still includes:

the adjusting shaft penetrates through the penetrating hole and the adjusting hole; two ends of the adjusting shaft are movably fixed on the eccentric assembly;

the adjusting shaft is in threaded connection with the adjusting hole of the rotating shaft, and the distance of the eccentric assembly relative to the rotating shaft is changed through the adjusting shaft.

5. The rotating mechanism according to claim 4, wherein a limiting block is fixedly connected to the adjusting hole, the limiting block has a threaded cavity, and the adjusting hole is in threaded connection with the adjusting shaft through the threaded cavity of the limiting block.

6. The rotation mechanism of claim 4, wherein the through hole of the eccentric assembly is located above the bushing portion, and the adjustment shaft is located above the rotating wheel.

7. The rotating mechanism according to claim 1, wherein the eccentric assembly is provided with a first scale mark, the first scale mark is positioned at one side of the rotating shaft groove of the eccentric assembly, and the first scale mark is arranged along the length direction of the rotating shaft groove.

8. The rotating mechanism according to claim 1, wherein the weight assembly is disposed above the eccentric assembly, and the weight assembly is fixedly connected to the eccentric assembly or the rotating shaft.

9. The rotation mechanism of claim 4, wherein at least one end of the adjustment shaft is exposed relative to the eccentric assembly.