CN218600850U - Lifting mechanism convenient for replacing bearing tool of testing machine - Google Patents
Lifting mechanism convenient for replacing bearing tool of testing machine Download PDFInfo
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- CN218600850U CN218600850U CN202220326206.3U CN202220326206U CN218600850U CN 218600850 U CN218600850 U CN 218600850U CN 202220326206 U CN202220326206 U CN 202220326206U CN 218600850 U CN218600850 U CN 218600850U
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Abstract
The utility model provides a lifting mechanism convenient for replacing a bearing fixture of a testing machine, which comprises a base, a base plate, a main support column, a fixed plate, a pressing plate, a driver, a guide column, a lifting baffle disc and an elastic damper; the fixing plate is fixedly arranged at the top ends of the main supporting columns; the pressing plate is arranged on the main supporting columns in a sliding mode and is positioned between the fixing plate and the base plate; the lifting baffle disc is fixedly connected to the upper end of the guide post through a nut and used for limiting the position of the pressing plate and driving the base plate to ascend when the pressing plate ascends. The utility model discloses exert load in the relative movement of bearing, the actual application scene of shank of bolt axle bearing is more pressed close to gained test data, can reflect the quality of shank of bolt axle bearing comprehensively, and the local has the operation high efficiency, stable, the advantage of being convenient for maintain.
Description
Technical Field
The utility model relates to a bearing check out test set especially relates to the fatigue testing machine of bolt shaft bearing, specifically is a carry and draw mechanism convenient to bearing frock is changed to testing machine.
Background
The bolt shaft bearing is generally a rolling bearing with a bolt type shaft, a supporting shaft and an inner ring of the rolling bearing are fixed into a whole, the bearing is convenient to maintain and quick to disassemble and install, and the bearing gradually becomes a universal part in recent years.
The bolt shaft bearing is mostly applied to the assembly of similar small-sized cart wheels, and in order to enable a test scene to be closer to a real use scene, the installation of the bolt shaft bearing follows the following two points: firstly, the axis of the bolt shaft should generate displacement when the rolling body rotates, and secondly, the bolt shaft bearing integrally bears radial load; the existing various bearing test devices cannot realize the function.
Therefore, the fatigue testing machine for the bolt shaft bearing with the roller way sliding type is developed, the machine adopts two groups of bolt shaft bearings to form an upper roller way and a lower roller way, the upper roller way and the lower roller way are respectively arranged on different base plates, a sliding plate is arranged between the upper roller way and the lower roller way to apply load to the upper roller way and the lower roller way, and the sliding plate and the bolt shaft bearing on the upper roller way and the lower roller way generate rolling friction, so that the axis of the bolt shaft bearing generates displacement relative to the sliding plate when a rolling body rotates. The structure well simulates the practical application scene of the bolt shaft bearing. However, in practical applications, for positioning, calibrating and disassembling the bearings, all test bearings are pre-installed on a bearing tool to form a corresponding roller way, and the bearing tool has a large volume and has a precision requirement for positioning on a substrate, so that replacement and calibration thereof become new problems.
Disclosure of Invention
To the problem that exists among the background art, the utility model aims at providing a carry and draw mechanism convenient to testing machine changes bearing frock, it combines together with the actuating mechanism of vertical loading on bearing frock, do not influence actuating mechanism's elastic loading, simultaneously when bearing uninstallation radial load, with the help of actuating mechanism's power, the base plate that makes the installation of bearing frock is carried and is drawn a great height to be convenient for change and the correction of bearing frock, this mechanism does not occupy extra space, help realizing the miniaturization of equipment.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a lifting mechanism convenient for replacing a bearing tool of a testing machine comprises a base, a base plate, a main support column, a fixing plate, a pressing plate, a driver, a guide column, a lifting baffle disc and an elastic damper;
the base plate is arranged above the base seat,
the number of the main supporting columns is multiple, and the multiple main supporting columns are vertically arranged on the upper surface of the base and distributed on two sides of the outer part of the base plate;
the fixing plate is fixedly arranged at the top ends of the main supporting columns;
the pressing plate is arranged on the main supporting columns in a sliding mode and is positioned between the fixing plate and the base plate;
the driver is fixedly arranged on the upper part of the fixing plate and used for driving the pressing plate to move up and down and applying load;
the guide posts are multiple in number, the upper end of each guide post penetrates through the pressing plate, and the lower end of each guide post is connected with the base plate;
the lifting baffle disc is fixedly connected to the upper end of the guide post through a nut and used for limiting the position of the pressing plate and driving the base plate to ascend when the pressing plate ascends;
the elastic damper is arranged between the pressing plate and the substrate, and the pressing plate drives the substrate to move downwards through the elastic damper and applies load to the substrate.
The elastic damper comprises a vertically arranged spring shaft and a spring sleeved on the spring shaft, the lower end of the spring shaft is connected to the upper surface of the second substrate, the upper end of the spring shaft penetrates through the upper surface of the pressing plate, and the spring is positioned between the second substrate and the pressing plate; the upper end surface of the pressing plate is correspondingly provided with a through hole for the spring shaft to pass through;
the elastic damper is characterized in that a sleeve A and a sleeve B are further arranged outside the elastic damper, the sleeve A and the sleeve B are sleeved outside the spring, the upper end of the sleeve A is connected with the pressing plate, the lower end of the sleeve B is connected with the lower end of the spring shaft, and the lower end of the sleeve A is sleeved outside the sleeve B and is in sliding fit with the sleeve B.
The number of the elastic dampers is two, and the spring axes of the two elastic damper pressing plates are symmetrical to the axis of the lifting baffle disc.
A plurality of guide holes A are uniformly distributed on the periphery of the pressing plate, the guide holes A correspond to the main support columns one by one, and each guide hole A is in sliding fit with the corresponding main support column; the middle part of the pressing plate is also provided with a plurality of guide holes B, the guide holes B correspond to the guide posts one by one, and each guide hole B is in sliding fit with the corresponding guide post.
The driver is an electric cylinder, the cylinder body of the electric cylinder is fixedly arranged on the upper part of the fixed plate, the output end of the electric cylinder is positioned on the lower part of the fixed plate and is connected with a pressure plate, and the pressure plate is fixedly connected on the upper surface of the pressure plate.
The utility model has the advantages that: the utility model discloses do not influence actuating mechanism's elastic loading, simultaneously when bearing uninstallation radial load, with the help of actuating mechanism's power, make the base plate of installing the bearing frock carry and draw a great height to be convenient for the change and the correction of bearing frock, extra space is not taken to this mechanism, helps realizing the miniaturization of equipment.
Drawings
Fig. 1 is a front view of the overall structure of the present invention.
Fig. 2 is a left side view without the fixation plate.
FIG. 3 is a schematic view of the connection of the elastic damper with the pressing plate and the base plate.
Fig. 4 is a perspective view of the platen.
In the figure: 1. the lifting device comprises a base, 2, a base plate, 3, a main supporting column, 4, a pressing plate, 5, a fixing plate, 6, a lifting baffle disc, 7, a guide column, 8, an elastic damper, 9, a driver, 10, a pressing disc, 11, a spring, 12, a spring shaft, 13, sleeves A and 14, sleeves B and 15, a through hole, 16, guide holes A and 17 and a guide hole B.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 4, a lifting mechanism for facilitating replacement of a bearing fixture of a testing machine comprises a base 1, a base plate 2, a main support column 3, a fixing plate 5, a pressing plate 4, a driver 9, a guide column 7, a lifting baffle disc 6 and an elastic damper 8; the base plate 2 is arranged above the base 1, the number of the main supporting columns 3 is multiple, and the multiple main supporting columns 3 are vertically arranged on the upper surface of the base 1 and distributed on two sides of the outer part of the base plate 2; the fixing plate 5 is fixedly arranged at the top ends of the main supporting columns 3; the pressing plate 4 is arranged on the main supporting columns 5 in a sliding manner and is positioned between the fixing plate 5 and the base plate 2; the driver 9 is fixedly arranged at the upper part of the fixed plate 5 and is used for driving the press plate 4 to move up and down and applying load; the number of the guide posts 7 is multiple, the upper end of each guide post 7 penetrates through the pressing plate 4, and the lower end of each guide post 7 is connected with the base plate 2; the lifting baffle disc 6 is fixedly connected to the upper end of the guide post 7 through a nut and is used for limiting the position of the pressing plate 4 and driving the base plate 2 to ascend when the pressing plate 4 ascends; the elastic damper 8 is arranged between the pressing plate 4 and the substrate 2, and the pressing plate 4 drives the substrate 2 to move downwards through the elastic damper 8 and applies load to the substrate 2.
The principle of the utility model is as follows: when a load is applied, the driver 9 drives the pressing plate 4 to move downwards, and the pressing plate 4 presses the substrate 2 through the elastic damper 8 to apply the load to the substrate 2; when unloading, the driver 9 drives the pressing plate 4 to move upwards; when a bearing tool arranged at the lower part of the base plate 2 needs to be replaced, the driver 9 drives the pressing plate 4 to continuously move upwards, after being blocked by the lifting baffle disc 6, the pressing plate 4 drives the lifting baffle disc 6 to ascend together, and the lifting baffle disc 6 is connected with the base plate 2 through the guide post 7, so that the base plate 2 is also lifted along with the lifting baffle disc; after base plate 2 lifted a suitable height, it is all very convenient to dismantle again or the installation is located the bearing frock of base plate 2 lower part, especially if base plate 2 below still has corresponding needs to be changed and during the structure of calibration, the utility model discloses a lifting mechanism also can be very easy change, the calibration of this structure of realization.
The elastic damper 8 comprises a vertically arranged spring shaft 12 and a spring 11 sleeved on the spring shaft 12, the lower end of the spring shaft 12 is connected to the upper surface of the base plate 2, the upper end of the spring shaft 12 penetrates through the upper surface of the pressing plate 4, and the spring 11 is positioned between the base plate 2 and the pressing plate 4; the upper end surface of the pressing plate 4 is correspondingly provided with a through hole 15 for the spring shaft 12 to pass through;
the elastic damper 8 is characterized in that a sleeve A13 and a sleeve B14 are further arranged outside the elastic damper 8, the sleeve A13 and the sleeve B14 are both sleeved outside the spring 11, the upper end of the sleeve A13 is connected with the pressing plate 4, the lower end of the sleeve B14 is connected with the lower end of the spring shaft 12, and the lower end of the sleeve A13 is sleeved outside the sleeve B14 and is in sliding fit with the sleeve B14.
Specifically, the structure of the elastic damper 8 can ensure that the substrate 2 is pressed when the pressing plate 4 moves downward, and the elastic damper 8 does not generate resistance when the pressing plate 4 rises.
The number of the elastic dampers 8 is two, and the spring shafts 12 of the two elastic dampers 8 are symmetrical to the axis of the lifting baffle disc 6.
A plurality of guide holes A16 are uniformly distributed around the pressing plate 4, the guide holes A16 correspond to the main support columns 3 one by one, and each guide hole A16 is in sliding fit with the corresponding main support column 3; the middle of the pressing plate 4 is also provided with a plurality of guide holes B17, the guide holes B17 correspond to the guide posts 7 one by one, and each guide hole B17 is in sliding fit with the corresponding guide post 7.
The driver 9 is an electric cylinder, the cylinder body of the electric cylinder is fixedly arranged on the upper part of the fixed plate 12, the output end of the electric cylinder is positioned on the lower part of the fixed plate 5 and is connected with a pressure plate 10, and the pressure plate 10 is fixedly connected on the upper surface of the pressure plate 4.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
The part of the utility model not detailed is prior art.
Claims (5)
1. A lifting mechanism convenient for replacing a bearing fixture of a testing machine comprises a base (1), a base plate (2), a main support column (3), a fixing plate (5), a pressing plate (4), a driver (9), a guide column (7), a lifting baffle disc (6) and an elastic damper (8); the method is characterized in that:
the base plate (2) is arranged above the base (1),
the number of the main supporting columns (3) is multiple, and the multiple main supporting columns (3) are vertically arranged on the upper surface of the base (1) and distributed on two sides of the outer part of the base plate (2);
the fixing plate (5) is fixedly arranged at the top ends of the main supporting columns (3);
the pressing plate (4) is arranged on the main supporting columns (5) in a sliding mode and is positioned between the fixing plate (5) and the base plate (2);
the driver (9) is fixedly arranged on the upper part of the fixed plate (5) and is used for driving the press plate (4) to move up and down and applying load;
the number of the guide posts (7) is multiple, the upper end of each guide post (7) penetrates through the pressing plate (4), and the lower end of each guide post is connected with the base plate (2);
the lifting baffle disc (6) is fixedly connected to the upper end of the guide post (7) through a nut and used for limiting the position of the pressing plate (4) and driving the base plate (2) to ascend when the pressing plate (4) ascends;
the elastic damper (8) is arranged between the pressing plate (4) and the substrate (2), and the pressing plate (4) drives the substrate (2) to move downwards through the elastic damper (8) and applies load to the substrate (2).
2. The lifting mechanism convenient for the bearing tool replacement of the testing machine as claimed in claim 1, wherein: the elastic damper (8) comprises a vertically arranged spring shaft (12) and a spring (11) sleeved on the spring shaft (12), the lower end of the spring shaft (12) is connected to the upper surface of the base plate (2), the upper end of the spring shaft penetrates through the upper surface of the pressing plate (4), and the spring (11) is located between the base plate (2) and the pressing plate (4); the upper end surface of the pressing plate (4) is correspondingly provided with a through hole (15) for the spring shaft (12) to pass through;
elastic damper (8) its outside still be equipped with sleeve A (13) and sleeve B (14), sleeve A (13) and sleeve B (14) are all established in the outside of spring (11) in the cover, clamp plate (4) is connected to sleeve A (13) upper end, spring shaft (12) lower extreme is connected to sleeve B (14) lower extreme, sleeve A (13) lower extreme cover establish sleeve B (14) outside and with sleeve B (14) sliding fit.
3. The lifting mechanism convenient for the bearing tool replacement of the testing machine as claimed in claim 1, wherein: the number of the elastic dampers (8) is two, and the spring shafts (12) of the two elastic dampers (8) are symmetrical to the axis of the lifting baffle disc (6).
4. The lifting mechanism convenient for the bearing tool of the testing machine to be replaced according to claim 1, is characterized in that: a plurality of guide holes (16) 16 are uniformly distributed on the periphery of the pressing plate (4), the guide holes (16) correspond to the main support columns (3) one by one, and each guide hole (16) is in sliding fit with the corresponding main support column (3); the middle of the pressing plate (4) is also provided with a plurality of guide holes B (17), the guide holes B (17) correspond to the guide posts (7) one by one, and each guide hole B (17) is in sliding fit with the corresponding guide post (7).
5. The lifting mechanism convenient for the bearing tool replacement of the testing machine as claimed in claim 1, wherein: the driver (9) is an electric cylinder, the cylinder body of the electric cylinder is fixedly arranged on the upper part of the fixing plate (12), the output end of the electric cylinder is positioned on the lower part of the fixing plate (5) and is connected with a pressure plate (10), and the pressure plate (10) is fixedly connected on the upper surface of the pressure plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220326206.3U CN218600850U (en) | 2022-02-18 | 2022-02-18 | Lifting mechanism convenient for replacing bearing tool of testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220326206.3U CN218600850U (en) | 2022-02-18 | 2022-02-18 | Lifting mechanism convenient for replacing bearing tool of testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218600850U true CN218600850U (en) | 2023-03-10 |
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ID=85395541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220326206.3U Active CN218600850U (en) | 2022-02-18 | 2022-02-18 | Lifting mechanism convenient for replacing bearing tool of testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218600850U (en) |
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2022
- 2022-02-18 CN CN202220326206.3U patent/CN218600850U/en active Active
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