CN213902840U - Life test tool for lifting mechanism - Google Patents
Life test tool for lifting mechanism Download PDFInfo
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- CN213902840U CN213902840U CN202022845803.0U CN202022845803U CN213902840U CN 213902840 U CN213902840 U CN 213902840U CN 202022845803 U CN202022845803 U CN 202022845803U CN 213902840 U CN213902840 U CN 213902840U
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Abstract
The utility model provides a life test tool for a lifting mechanism, which comprises an upper fixed platform, a lower fixed platform, a guide upright post, a movable support plate, a threaded connecting sleeve, a load bearing support seat, a fastening device and a lifting device, wherein the upper fixed platform and the lower fixed platform are fixedly arranged through the guide upright post; lifting devices is equipped with two sets ofly, and each lifting devices of organizing all includes pull ring group, couple, stay cord, leading wheel, and pull ring group still is equipped with a dwang between two sets of lifting devices including two sets of pull ring units, and the dwang is erect on last fixed platform, and its one end links to each other with the driving motor drive of installing on last fixed platform, is fixed with on the dwang with stay cord rolling complex drive wheel, the utility model discloses stability is better and the installation is comparatively simple and convenient.
Description
Technical Field
The utility model relates to a life-span test fixture, especially an elevating system life-span test fixture.
Background
In the field of automatic precision production, the working stability of a lifting mechanism has great influence on the quality of the whole mechanism, in particular to a worm gear lead screw lifter, wherein the lifting mechanism comprises more parts, and in order to test the service life of the assembled worm gear lead screw lifter, the service life of the assembled worm gear lead screw lifter is often tested by means of a service life testing tool; but current test fixture does not relate to fastener when bearing a burden, so in the lift in-process of burden weight piece, stability is relatively poor, and when the elevating system who will await measuring is suitable for current fixture, still generally need lift the operation with the help of some other equipment to this process of connection is accomplished, so, comparatively wastes time and energy.
Therefore, a life test tool for the lifting mechanism, which has a simple structure, better stability and simpler and more convenient installation, is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an elevating system life-span test fixture, simple structure, stability is better and the installation is comparatively simple and convenient.
The utility model provides a following technical scheme:
a life test tool for a lifting mechanism comprises an upper fixing platform, a lower fixing platform, a guide upright post, a movable supporting plate, a threaded connecting sleeve, a load bearing supporting seat, a fastening device and a lifting device, wherein the upper fixing platform and the lower fixing platform are fixedly arranged through the guide upright post; the upper fixed platform is provided with a passage port through which the threaded connecting sleeve, the fastening device and the lifting device can pass; the fastening device comprises a fastening bracket passing through the passage port, a horizontal frame fixed at the top of the fastening bracket and a pressing part arranged on the horizontal frame and used for pressing the lower negative weight block; the lifting devices are provided with two groups, each group of lifting device comprises a pull ring group, a hook, a pull rope and a guide wheel, the pull ring group comprises two groups of pull ring units, the inner side of the hook is correspondingly hung on the pull ring units, the fixed end of the hook is correspondingly connected with the pull rope, the pull rope is guided to be horizontally arranged by vertical arrangement after being guided by the guide wheel arranged on the upper fixed platform, a rotating rod is further arranged between the two groups of lifting devices, the rotating rod is erected on the upper fixed platform, one end of the rotating rod is connected with a driving motor arranged on the upper fixed platform in a driving mode, and four groups of driving wheels which are respectively correspondingly connected with the four groups of pull ropes are sequentially fixed on the rotating rod.
Preferably, the guide upright posts are provided with four groups which are distributed in a rectangular shape.
Preferably, one side of the upper fixing platform is also provided with a vertical frame, one side of the movable supporting plate is provided with a sensor, and the vertical frame is provided with an upper limit detection block and a lower limit detection block which are matched with the sensor in a sensing way.
Preferably, the compressing portion comprises a piston rod, a spring, a pressing plate and a locking nut, the piston rod penetrates through the horizontal frame, the locking nut is connected to the outer thread of the piston rod above the horizontal frame, the spring is sleeved outside the piston rod below the horizontal frame, and the pressing plate used for compressing the negative weight block is further arranged at the bottom end of the piston rod.
Preferably, both ends of the rotating rod are erected on the upper fixing platform through bearings with seats.
Preferably, the fastening brackets are provided with two sets symmetrically arranged about the threaded guide sleeves.
Preferably, the inner side of the movable supporting plate is provided with a guide sleeve which is in guide fit with the guide upright post.
Preferably, the two sets of lifting devices are symmetrically arranged with respect to the thread guiding sleeve, and the two sets of tab units in each tab set are also symmetrically arranged with respect to the thread guiding sleeve.
The utility model has the advantages that: after the lifting mechanism is fixed on the lower fixing platform, the driving motor can be started, the pull rope is loosened, so that the screw rod at the top end of the lifting mechanism is matched with the threaded connecting sleeve, then the hook is separated from the pull ring unit, the motor is driven by reverse rotation, the pull rope rises and is wound, and then the weight block is arranged on the weight support seat, and the position of the nut on the piston rod is adjusted, so that the pressure plate presses the negative weight block under the elastic force of the spring, then the lifting mechanism is started, the lifting operation of the negative weight block is repeatedly carried out, so that the service life of the lifting mechanism is detected, in the process that the lifting mechanism is connected to the threaded connecting sleeve, need not to carry and carry out the lift of movable support board with the help of external equipment, the manual work only need with couple and pull ring unit hang establish or break away from and start driving motor can, comparatively convenient and fast convenience, and fastener also can realize compressing tightly fixedly of burden pouring weight, also improved stability effect.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a sectional view of the structure of the present invention;
FIG. 2 is a top view of the lifting device;
notation in the figure: the device comprises an upper fixing platform 1, a lower fixing platform 2, a guide upright post 3, a movable supporting plate 4, a threaded connecting sleeve 5, a load bearing support 6, a fastening device 7, a lifting device 8, a load bearing block 9, a lifting mechanism 10, a sensor 11, a vertical frame 12, an upper limit detection block 13, a lower limit detection block 14, a guide sleeve 15, a fastening support 71, a horizontal frame 72, a piston rod 73, a spring 74, a pressing plate 75, a locking nut 76, a pull ring unit 81, a hook 82, a pull rope 83, a guide wheel 84, a rotating rod 85, a driving motor 86 and a driving wheel 87.
Detailed Description
Example 1
With reference to fig. 1 to 2, in this embodiment, the tool for testing the service life of the lifting mechanism includes an upper fixed platform 1, a lower fixed platform 2, a guide upright 3, a movable support plate 4, a threaded connection sleeve 5, a load support seat 6, a fastening device 7 and a lifting device 8, wherein the upper fixed platform 1 and the lower fixed platform 2 are fixedly arranged through the guide upright 3, the threaded connection sleeve 5 is installed at the center of the top of the movable support plate 4, the load support seat 6 is fixedly connected to the top end of the threaded connection sleeve 5, a load weight 9 is placed on the load support seat 6, and a threaded groove for being in threaded connection with a lead screw of the lifting mechanism 10 is formed in the threaded connection sleeve 5; the upper fixed platform 1 is provided with a passage opening through which the threaded connecting sleeve 5, the fastening device 7 and the lifting device 8 can pass; the fastening device 7 comprises a fastening bracket 71 passing through the passage opening, a horizontal frame 72 fixed at the top of the fastening bracket 71 and a pressing part arranged on the horizontal frame 72 and used for pressing the lower load block 9; the lifting devices 8 are provided with two groups, each group of lifting device 8 comprises a pull ring group, a hook 82, a pull rope 83 and a guide wheel 84, each pull ring group comprises two groups of pull ring units 81, the inner side of the hook 82 is correspondingly hung on the pull ring units 81, the fixed end of the hook 82 is correspondingly connected with the pull rope 83, the pull rope 83 is guided to be horizontally arranged by vertical arrangement after being guided by the guide wheels 84 arranged on the upper fixed platform 1, a rotating rod 85 is further arranged between the two groups of lifting devices 8, the rotating rod 85 is erected on the upper fixed platform 1, one end of the rotating rod is in driving connection with a driving motor 86 arranged on the upper fixed platform 1, and four groups of driving wheels 87 correspondingly connected with the four groups of pull ropes 83 are sequentially fixed on the rotating rod 85.
The guide upright posts 3 are provided with four groups which are distributed in a rectangular shape.
Go up one side of fixed platform 1 and still be equipped with a grudging post 12, one side of movable supporting plate 4 is equipped with sensor 11, is equipped with on grudging post 12 and detects piece 13 and lower limit detection piece 14 with sensor 11 response complex upper limit, detects piece 13 and lower limit detection piece 14 through sensor 11 to can judge the upper limit position and the lower limit position that elevating system 10 goes up and down.
The pressing portion comprises a piston rod 73, a spring 74, a pressing plate 75 and a locking nut 76, the piston rod 73 penetrates through the horizontal frame 72, the locking nut 76 is connected to the piston rod 73 above the horizontal frame 72 through external threads, the spring 74 is sleeved outside the piston rod 73 below the horizontal frame 72, and the pressing plate 75 used for pressing the negative weight 9 is further arranged at the bottom end of the piston rod 73.
Both ends of the rotating lever 85 are mounted on the upper fixed platform 1 through a bearing with a seat.
The fastening brackets 71 are provided with two sets symmetrically arranged about the screw guide 15.
The inner side of the movable supporting plate 4 is provided with a guide sleeve 15 which is matched with the guide upright post 3 in a guiding way.
Example 2
Referring to the life test tool for the lifting mechanism 10 shown in fig. 1 to fig. 2, in this embodiment, two sets of lifting devices 8 are symmetrically disposed about the thread guide sleeve 15, and two sets of pull ring units 81 in each pull ring set are also symmetrically disposed about the thread guide sleeve 15, so that when the driving motor 86 drives the driving wheel 87 to rotate and wind the pull rope 83, the movable supporting plate 4 is subjected to an average upward driving force, thereby avoiding a tendency of inclination when each portion of the lower fixed platform 2 is subjected to uneven force, and also avoiding a phenomenon that the service life of the guide sleeve 15 is affected due to uneven force on the side wall of the guide sleeve 15.
The utility model discloses a theory of operation is: after the lifting mechanism 10 is fixed on the lower fixing platform 2, the driving motor 86 can be started, the pull rope 83 is loosened, the lead screw at the top end of the lifting mechanism 10 is matched with the threaded connecting sleeve 5, the hook 82 is further separated from the pull ring unit 81, the driving motor 86 is rotated reversely, the pull rope 83 is lifted and wound, the load-bearing support seat 6 is further provided with the load-bearing weight 9, the position of the nut on the piston rod 73 is adjusted, the pressure plate 75 is enabled to tightly press the load-bearing weight 9 under the elastic force of the spring 74, the lifting mechanism 10 is further started, the lifting operation of the load-bearing weight 9 is repeatedly carried out, the service life of the lifting mechanism 10 is detected, the whole tool does not need to carry to lift the movable support plate 4 by means of external equipment in the process that the lifting mechanism 10 is connected to the threaded connecting sleeve 5, only needs to hang or separate the hook 82 and the pull ring unit 81, and the fastening device 7 can also realize the compression and fixation of the negative weight 9, and the stability effect is also improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A life test tool for a lifting mechanism is characterized by comprising an upper fixing platform, a lower fixing platform, a guide upright post, a movable supporting plate, a threaded connecting sleeve, a load bearing supporting seat, a fastening device and a lifting device, wherein the upper fixing platform and the lower fixing platform are fixedly arranged through the guide upright post;
the upper fixing platform is provided with a passage opening through which the threaded connecting sleeve, the fastening device and the lifting device can pass;
the fastening device comprises a fastening bracket passing through the passage port, a horizontal frame fixed at the top of the fastening bracket and a pressing part arranged on the horizontal frame and used for pressing the lower negative weight block;
lifting device is equipped with two sets ofly, and each group lifting device all includes pull ring group, couple, stay cord, leading wheel, pull ring group is including two sets of pull ring units, the crotch inboard correspondence of couple is hung and is established on the pull ring unit, the stiff end correspondence of couple is connected with a stay cord, the stay cord is through installing it is the level setting by vertical setting direction after going up the leading wheel direction on the fixed platform, two sets of still be equipped with a bull stick between the lifting device, the bull stick erects to go up on the fixed platform, and its one end with install go up driving motor drive on the fixed platform and link to each other, be fixed with in proper order on the dwang and correspond four group's drive wheels of being connected with four group's stay cords respectively.
2. The tool for testing the service life of the lifting mechanism according to claim 1, wherein four groups of the guide columns are distributed in a rectangular shape.
3. The tool for testing the service life of the lifting mechanism according to claim 1, wherein a vertical frame is further arranged on one side of the upper fixing platform, a sensor is arranged on one side of the movable supporting plate, and an upper limit detection block and a lower limit detection block which are in induction fit with the sensor are arranged on the vertical frame.
4. The tool for testing the service life of the lifting mechanism according to claim 1, wherein the compressing portion comprises a piston rod, a spring, a pressing plate and a locking nut, the piston rod penetrates through the horizontal frame, the locking nut is connected to the piston rod above the horizontal frame through an external thread, the spring is sleeved outside the piston rod below the horizontal frame, and the pressing plate used for compressing the negative weight block is further arranged at the bottom end of the piston rod.
5. The tool for testing the service life of the lifting mechanism according to claim 1, wherein two ends of the rotating rod are erected on the upper fixing platform through a bearing with a seat.
6. The tool for testing the service life of the lifting mechanism according to claim 1, wherein the fastening brackets are provided with two groups which are symmetrically arranged relative to the threaded guide sleeve.
7. The tool for testing the service life of the lifting mechanism according to claim 1, wherein a guide sleeve in guide fit with the guide upright is arranged on the inner side of the movable supporting plate.
8. The tool for testing the service life of the lifting mechanism according to claim 1, wherein the two lifting devices are symmetrically arranged about the thread guide sleeve, and the two pull ring units in each pull ring group are also symmetrically arranged about the thread guide sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022845803.0U CN213902840U (en) | 2020-12-01 | 2020-12-01 | Life test tool for lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022845803.0U CN213902840U (en) | 2020-12-01 | 2020-12-01 | Life test tool for lifting mechanism |
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| Publication Number | Publication Date |
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| CN213902840U true CN213902840U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022845803.0U Active CN213902840U (en) | 2020-12-01 | 2020-12-01 | Life test tool for lifting mechanism |
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| CN (1) | CN213902840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113820162A (en) * | 2021-10-12 | 2021-12-21 | 山东国创精密机械有限公司 | Worm lift testing arrangement |
-
2020
- 2020-12-01 CN CN202022845803.0U patent/CN213902840U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113820162A (en) * | 2021-10-12 | 2021-12-21 | 山东国创精密机械有限公司 | Worm lift testing arrangement |
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