CN216283926U

CN216283926U - Novel amplitude test device

Info

Publication number: CN216283926U
Application number: CN202122546456.6U
Authority: CN
Inventors: 孙应兵; 曹颖飞
Original assignee: Shanghai Tiancheng Industrial Co ltd
Current assignee: Shanghai Tiancheng Industrial Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-04-12
Anticipated expiration: 2031-10-22

Abstract

The utility model belongs to the technical field of amplitude testing devices, and particularly relates to a novel amplitude testing device which comprises a vertical plate, a base plate seat, a friction force sensor, a reciprocating sliding plate, an oil conveying assembly, a servo cylinder, a high-precision non-contact type induction displacement sensor and an installation fixing frame. The utility model uses the telescopic shaft of the micro cylinder to drive the pressing plate to press the lubricating oil in the oil tank into the transmission oil pipe, the lubricating oil is discharged into the oil tank at the bottom of the reciprocating sliding plate through the transmission oil pipe, and then falls on the plane bearing through the oil transmission hole on the oil transmission plate, so that the lubricating oil can uniformly fall on the plane bearing through the movement of the reciprocating sliding plate, the friction resistance between the reciprocating sliding plate and the plane bearing is reduced, and the influence on the test data is reduced.

Description

Novel amplitude test device

Technical Field

The utility model relates to the technical field of amplitude testing devices, in particular to a novel amplitude testing device.

Background

The reciprocating motion of an object or mass point relative to a balance position is called vibration, the vibration is divided into sinusoidal vibration, random vibration, composite vibration, scanning vibration and fixed-frequency vibration, and the main parameters describing the vibration are as follows: amplitude, velocity vibration and acceleration, in-situ or laboratory tests on real or modeled vibrating systems, which are mass elastic systems excited by a vibration source, such as machines, structures or parts thereof, living bodies, etc.

During the amplitude test, need invariable effective displacement reciprocating control and slide, traditional mode adopts mechanical type eccentric wheel structure to produce reciprocating displacement volume, because the influence in mechanical structure material rigidity and connecting piece clearance, can not reach invariable effective displacement control that slides, bring very big uncertainty and differentiation to the amplitude test result, the test result can't quantify the comparison, and the change of frictional force also can direct influence test data, need a novel amplitude testing arrangement structure to solve this practical technique application problem for this reason.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a novel amplitude testing device to solve the problem that in the prior art, the amplitude testing structure is inaccurate due to the rigidity of a mechanical structure material, the gap of a connecting piece and overlarge friction force during displacement.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a novel amplitude testing device, includes riser, base plate seat, frictional force sensor, reciprocal slide plate, oil transportation subassembly, servo cylinder, high accuracy contactless response displacement sensor and installation mount, the riser top is provided with the base plate seat, base plate seat top is provided with reciprocal slide plate, reciprocal slide plate top fixedly connected with oil transportation subassembly.

The present invention in a preferred example may be further configured to: the device comprises a vertical plate, and is characterized in that a servo cylinder is fixedly connected to the outer wall of one side of the vertical plate, a high-precision non-contact type induction displacement sensor is fixedly mounted on the outer wall of the rear end of the vertical plate, and a mounting fixing frame is arranged between the high-precision non-contact type induction displacement sensor and the vertical plate.

The present invention in a preferred example may be further configured to: and the telescopic rod of the servo cylinder is fixedly connected with the reciprocating sliding plate.

The present invention in a preferred example may be further configured to: the oil transportation assembly comprises a micro cylinder, an oil tank, a support, a pressing plate, a transmission oil pipe, an oil transportation plate and an oil hole, wherein the support is fixedly connected with the outer wall of the top of the oil tank, the micro cylinder is fixedly mounted on the outer wall of the top of the support, the pressing plate is movably connected to the inner side of the oil tank, the transmission oil pipe is fixedly sleeved on the inner side of one end of the oil tank, and the oil transportation plate is fixedly connected to the inner side of the bottom of the reciprocating sliding plate.

The present invention in a preferred example may be further configured to: the telescopic shaft of the micro cylinder is fixedly connected with the pressing plate, an oil groove is formed in the position, corresponding to the oil conveying plate, of the inner side of the bottom of the reciprocating sliding plate, and one end, far away from the oil tank, of the oil conveying pipe is located right above the oil conveying plate.

The present invention in a preferred example may be further configured to: the outer wall of the top of the base plate seat is fixedly connected with two groups of plane bearings, the oil conveying plate is located right above the plane bearings, and a plurality of groups of oil holes are formed in the inner side of the oil conveying plate.

The present invention in a preferred example may be further configured to: the outer wall of one side of the reciprocating sliding plate is fixedly connected with two groups of friction force sensors, and the friction force sensors are electrically connected with the micro cylinder.

In summary, the utility model includes at least one of the following beneficial technical effects:

1. in the using process of the utility model, the servo cylinder replaces the traditional mechanical eccentric wheel structure to generate reciprocating displacement by arranging the high-precision non-contact inductive displacement sensor and the servo cylinder, so as to prevent the situation that the constant effective slippage displacement control cannot be achieved due to the influence of the rigidity of materials and the clearance of a connecting piece after the mechanical structure is stressed, improve the certainty of an amplitude test result and reduce the difference of test data, the novel constant horizontal transverse effective displacement control device adopts the high-precision non-contact inductive displacement sensor, adopts the horizontally transversely installed high-precision non-contact inductive displacement sensor as a signal target and control feedback, is controlled by a full-automatic measurement and control system and software, wherein the servo cylinder is used for achieving the purpose of taking a final slippage displacement target as an effective constant amount so as to complete the constant horizontal effective displacement control, the whole device has high structural precision and high automation degree, eliminates the influence of mechanical rigidity and clearance and completely achieves real constant effective sliding displacement.

2. When the oil delivery assembly is used, the oil delivery assembly is electrically connected with the micro cylinder through the friction force sensor, when the friction force of contact between the friction force sensor and the plane bearing is larger than a set preset value, the friction force sensor enables the micro cylinder to be started, the telescopic shaft of the micro cylinder drives the pressing plate to press lubricating oil in the oil tank into the transmission oil pipe, the lubricating oil is discharged into an oil groove at the bottom of the reciprocating sliding plate through the transmission oil pipe and then falls on the plane bearing through the oil delivery hole in the oil delivery plate, the lubricating oil can uniformly fall on the plane bearing through the movement of the reciprocating sliding plate, the friction resistance between the reciprocating sliding plate and the plane bearing is reduced, and the influence on test data is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a front view of fig. 1.

Reference numerals: 1. a vertical plate; 2. a substrate holder; 3. a friction force sensor; 4. a reciprocating sliding plate; 5. an oil delivery assembly; 501. a micro cylinder; 502. an oil tank; 503. a support; 504. pressing a plate; 505. a transfer tubing; 506. an oil conveying plate; 507. an oil hole; 6. a servo cylinder; 7. a high-precision contactless inductive displacement sensor; 8. mounting a fixed frame; 9. and a plane bearing.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a novel amplitude testing device, includes riser 1, base plate seat 2, frictional force sensor 3, reciprocal slide plate 4, oil transportation subassembly 5, servo cylinder 6, high accuracy contactless response displacement sensor 7 and installation mount 8, and 1 top of riser is provided with

base plate seat

2, and 2 tops of base plate seat are provided with reciprocal slide plate 4, and 4 top fixedly connected with oil transportation subassemblies 5 of reciprocal slide plate.

Referring to fig. 1 and 2, specifically, a servo cylinder 6 is fixedly connected to an outer wall of one side of a vertical plate 1, a high-precision non-contact type induction displacement sensor 7 is fixedly installed on an outer wall of a rear end of the vertical plate 1, an installation fixing frame 8 is arranged between the high-precision non-contact type induction displacement sensor 7 and the vertical plate 1, the high-precision non-contact type induction displacement sensor 7 is installed on the vertical plate 1 through the installation fixing frame 8, the high-precision non-contact type induction displacement sensor 7 corresponds to a workpiece on a reciprocating sliding plate 4, a telescopic rod of the servo cylinder 6 is fixedly connected with the reciprocating sliding plate 4, the reciprocating sliding plate 4 is conveniently driven to move by the telescopic rod of the servo cylinder 6, and the high-precision non-contact type induction displacement sensor 7 is horizontally installed; the sensor is used for signal target and control feedback, the measurement and control system and software control are utilized, and the servo cylinder 6 replaces the traditional mechanical type to drive the reciprocating sliding plate 4 to perform reciprocating displacement, so that the final sliding displacement target is used as an effective constant amount, the constant horizontal effective displacement control is completed, the structural precision of the whole device is high, the automation degree is high, the influence of mechanical rigidity and clearance is eliminated, and the real constant effective sliding displacement is completely achieved.

Referring to fig. 2 and 3, in detail, the oil delivery assembly 5 includes an oil tank 502, a support 503 is fixedly connected to an outer wall of a top of the oil tank 502, a micro cylinder 501 is fixedly installed on an outer wall of a top of the support 503, a pressing plate 504 is movably connected to an inner side of the oil tank 502, a delivery pipe 505 is fixedly connected to an inner side of a bottom of the reciprocating sliding plate 4, an oil delivery plate 506 is fixedly connected to an inner side of a bottom of the reciprocating sliding plate 4, an extension shaft of the micro cylinder 501 is fixedly connected to the pressing plate 504, an oil groove is formed in a position of the inner side of the bottom of the reciprocating sliding plate 4 corresponding to the oil delivery plate 506, an end of the delivery pipe 505, which is far away from the oil tank 502, is located right above the oil delivery plate 506, the pressing plate 504 is driven by the extension shaft of the micro cylinder 501 to slide in the oil tank 502, the lubricating oil in the oil tank 502 can be forced by pressing of the pressing plate 504 to enter the oil delivery pipe 505 into the oil groove of the reciprocating sliding plate 4, two sets of planar bearings 9 are fixedly connected to an outer wall of a top of the substrate base 2, the oil delivery plate 506 is positioned right above the plane bearing 9, and the inner side of the oil delivery plate 506 is provided with a plurality of groups of oil holes 507, the lubricating oil in the oil groove finally falls on the plane bearing 9 through the oil holes 507, the reciprocating sliding plate 4 is driven by the servo cylinder 6 to slide, so that the lubricating oil in the oil groove is uniformly distributed on the plane bearing 9, the friction resistance between the plane bearing 9 and the reciprocating sliding plate 4 is reduced, thereby reducing the influence on the test result, the outer wall of one side of the reciprocating sliding plate 4 is fixedly connected with two groups of friction force sensors 3, the friction force sensors 3 are electrically connected with the micro cylinder 501, when the reciprocating sliding plate 4 moves, the stress surface of the friction force sensors 3 is contacted with the plane bearing 9, the friction resistance received by the stress surface is amplified by components such as a signal amplifier and the like and transmitted to the micro cylinder 501, and when the friction resistance received by the stress surface is greater than the preset value set by the sensors, it means that the frictional resistance between the plane bearing 9 and the reciprocating sliding plate 4 has already started to affect the test result, and the frictional force sensor 3 starts the micro cylinder 501, so that the oil transportation unit 5 starts to transport oil.

The utility model has the following use flow and working principle: when the utility model is used, firstly, a workpiece to be tested is arranged on the reciprocating sliding plate 4 through a station, the servo cylinder 6 is started, the reciprocating sliding plate 4 is driven by the telescopic rod of the servo cylinder 6 to slide, a high-precision non-contact type induction displacement sensor 7 corresponding to the workpiece in the station on the reciprocating sliding plate 4 serves as a signal target and control feedback, and is matched with a full-automatic measurement and control system and software to control, when the servo cylinder 6 drives the reciprocating sliding plate 4 to complete the reserved effective displacement amount, the constant horizontal effective displacement control is completed, the novel displacement device cancels the traditional mechanical displacement structure, thereby eliminating the influences of mechanical rigidity and clearance, completely achieving the real constant effective sliding displacement, and simultaneously, the increase of the friction resistance between the plane bearing 9 and the reciprocating sliding plate 4 can also influence the test structure, therefore, the friction force sensor 3 is arranged on the reciprocating sliding plate 4, when the friction force received by the stress surface of the friction force sensor 3 is larger than a preset value, the micro cylinder 501 is started, the telescopic shaft of the micro cylinder 501 drives the pressing plate 504 to move downwards, the lubricating oil in the oil tank 502 is output to the oil groove at the bottom of the reciprocating sliding plate 4 through the oil conveying pipe 505, the lubricating oil is uniformly distributed on the plane bearing 9 through the oil conveying hole 507, the friction resistance between the reciprocating sliding plate 4 and the plane bearing 9 is reduced, and the test result is ensured.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. The utility model provides a novel amplitude testing device, includes riser (1), base plate seat (2), frictional force sensor (3), reciprocal slide plate (4), oil delivery subassembly (5), servo cylinder (6), high accuracy contactless response displacement sensor (7) and installation mount (8), its characterized in that: the oil pumping unit is characterized in that a base plate seat (2) is arranged at the top of the vertical plate (1), a reciprocating sliding plate (4) is arranged at the top of the base plate seat (2), and an oil conveying assembly (5) is fixedly connected to the top of the reciprocating sliding plate (4).

2. The novel amplitude testing device of claim 1, wherein: the device is characterized in that a servo cylinder (6) is fixedly connected to the outer wall of one side of the vertical plate (1), a high-precision non-contact type induction displacement sensor (7) is fixedly mounted on the outer wall of the rear end of the vertical plate (1), and an installation fixing frame (8) is arranged between the high-precision non-contact type induction displacement sensor (7) and the vertical plate (1).

3. The novel amplitude testing device of claim 2, wherein: and the telescopic rod of the servo cylinder (6) is fixedly connected with the reciprocating sliding plate (4).

4. The novel amplitude testing device of claim 1, wherein: oil delivery subassembly (5) include micro cylinder (501), oil tank (502), support (503), clamp plate (504), transmission oil pipe (505), oil delivery board (506) and oilhole (507), oil tank (502) top outer wall fixedly connected with support (503), support (503) top outer wall fixed mounting has micro cylinder (501), oil tank (502) inboard swing joint has clamp plate (504), oil tank (502) one end inboard fixed coupling has transmission oil pipe (505), reciprocal slide board (4) bottom inboard fixedly connected with oil delivery board (506).

5. The novel amplitude testing device of claim 4, wherein: the telescopic shaft of the micro cylinder (501) is fixedly connected with the pressing plate (504), oil grooves are formed in the inner side of the bottom of the reciprocating sliding plate (4) and correspond to the oil conveying plate (506), and one end, far away from the oil tank (502), of the oil conveying pipe (505) is located right above the oil conveying plate (506).

6. The novel amplitude testing device of claim 5, wherein: the oil conveying device is characterized in that two groups of plane bearings (9) are fixedly connected to the outer wall of the top of the base plate seat (2), the oil conveying plate (506) is located right above the plane bearings (9), and a plurality of groups of oil holes (507) are formed in the inner side of the oil conveying plate (506).

7. The novel amplitude testing device of claim 1, wherein: the outer wall of one side of the reciprocating sliding plate (4) is fixedly connected with two groups of friction force sensors (3), and the friction force sensors (3) are electrically connected with the micro cylinder (501).