CN212779840U

CN212779840U - Static pressure type horizontal sliding table with I-shaped structure

Info

Publication number: CN212779840U
Application number: CN202021206634.XU
Authority: CN
Inventors: 郑建洲; 张雷雷
Original assignee: Suzhou Sushi Testing Group Co Ltd
Current assignee: Suzhou Sushi Testing Group Co Ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-03-23
Anticipated expiration: 2030-06-24

Abstract

The utility model provides a static pressure formula horizontal slip table of I shape structure, including slide, guide rail and bottom plate, the cross section of guide rail is the shape of falling T, the slide sets up the top of guide rail, and through the fastener with guide rail fixed connection forms the I shape structure, the bottom plate with the mutual clearance fit of recess of I shape structure, just the upper surface of bottom plate with the lower surface of slide and the lower surface of bottom plate with be equipped with the oil film layer in the clearance of the upper surface of guide rail, the I shape structure is in slide on the oil film layer. The utility model discloses a static pressure formula horizontal sliding table adopts above-mentioned I shape structure, regards the slide bottom surface of horizontal sliding table as oil film bearing area, and in limited area, the bearing area who acquires is the biggest, and same slide size can produce bigger bearing capacity to the cost is reduced has increased the rate of utilization of equipment.

Description

Static pressure type horizontal sliding table with I-shaped structure

Technical Field

The utility model relates to an electric vibration platform among the mechanical environment test equipment, concretely relates to static pressure formula horizontal slip table of I shape structure.

Background

The vibration test aims at manually simulating vibration load possibly suffered by a test piece and influence on the test piece in the transportation, storage and use processes in a test room and examining the adaptability of the test piece.

A basic structure of a common horizontal sliding table in the prior art is shown in figure 1, a product 1 is placed on a sliding plate 2, the sliding plate 2 is connected with a T-shaped guide rail of a hydrostatic bearing 3, the hydrostatic bearing 3 is installed on a fixed plate 4 of the horizontal sliding table, the fixed plate 4 is connected with a base of a vibrating table, one end of the sliding plate 2 is connected with a moving coil of the vibrating table through a connector, and when high-pressure oil is introduced into the hydrostatic bearing 3, the moving coil of the vibrating table pushes the sliding plate 2 to drive the T-shaped guide rail to slide freely in a reciprocating mode between oil film layers of the hydrostatic bearing 3.

The important index of the static pressure type horizontal sliding table is the bearing capacity, the index is directly related to the effective bearing area of an oil film, and the prior large-bearing horizontal sliding table mainly adopts a T-shaped structure as shown in figure 2. The slide plate 2 is connected with a T-shaped guide rail 5, and high pressure is injected through an oil hole 7 and an oil cavity 8 which are arranged on a hydrostatic bearing, so that the guide rail can freely slide in the middle of the bearing in a reciprocating mode.

In "T" shape structure, the effective bearing area of static pressure oil film 9 relies on limited guide rail area all the time, the effective bearing area of oil film is less relatively, when needs carry out the heavy load test, the ability receives effective bearing area's restriction, often need arrange more hydrostatic bearing and just can satisfy the demands, but the increase of hydrostatic bearing quantity means the size grow of slide area, the weight of slide increases, same experimental requirement, if the thrust loss that will offset this part weight and bring, must adopt the shaking table of bigger thrust, make whole equipment purchasing cost, the maintenance cost rises by a wide margin, the availability factor also can descend.

Therefore, how to solve the deficiencies of the prior art becomes the problem to be solved by the present invention.

Disclosure of Invention

The utility model aims at providing a static pressure formula horizontal slip table of I shape structure to a horizontal direction test for realizing bigger bearing capacity.

In order to realize the above-mentioned purpose, the utility model provides a static pressure formula horizontal slip table of I shape structure, including slide 2, guide rail 5 and bottom plate 14, the cross section of guide rail 5 is the shape of falling T, slide 2 sets up the top of guide rail 5, and through the fastener with 5 fixed connection of guide rail form the I shape structure, bottom plate 14 with the mutual clearance fit of recess of I shape structure, just bottom plate 14 the upper surface with slide 2 the lower surface and bottom plate 14 the lower surface with be equipped with the oil film layer in the clearance of the upper surface of guide rail 5, the I shape structure is in slide on the oil film layer.

Further, an oil filling hole 7 is formed in the bottom plate 14, an upper oil cavity 15 and a lower oil cavity 16 are respectively formed in the upper surface and the lower surface of the bottom plate 14, and the oil filling hole 7 is communicated with the upper oil cavity 15 and the lower oil cavity 16 through a pipeline.

Further, the upper oil chamber 15 and the lower oil chamber 16 are concave oil grooves.

Further, the number of the upper oil chambers 15 is larger than that of the lower oil chambers 16.

Further, the upper oil chamber 15 and the lower oil chamber 16 are uniformly distributed on two sides of the i-shaped structure.

Further, an upper oil film layer 12 is formed between the lower surface of the sliding plate 2 and the upper oil chamber 15, and a lower oil film layer 13 is formed between the upper surface of the guide rail 5 and the lower oil chamber 16.

Further, the maximum bearing capacity of the static pressure type horizontal sliding table with the i-shaped structure is the pressure difference formed by the upper oil film layer 12 and the lower oil film layer 13.

Further, the i-shaped structures are distributed on the bottom plate 14 in an m × n matrix form, where m is greater than or equal to 0, n is greater than or equal to 0, and m and n are not simultaneously 0, preferably, m is equal to n.

Further, an oil return groove 17 is further formed in the bottom plate 14, and the oil return groove 17 is formed in one side, far away from the i-shaped structure, of the upper oil chamber 15.

Further, the bottom plate 14 is connected with the base of the electric vibration table.

The utility model has the advantages that:

the utility model discloses a static pressure formula horizontal slip table adopts I shape structure, regards the slide bottom of horizontal slip table as oil film bearing area, through this kind of mode, in limited area, the bearing area who acquires is the biggest, and same slide size can produce bigger bearing capacity, and reduce cost increases the rate of equipment utilization.

Drawings

FIG. 1 is a schematic structural view of a horizontal slide table of the prior art;

FIG. 2 is a T-shaped structural view of a prior art horizontal slide;

FIG. 3 is a schematic structural view of a conventional fuel tank (no-skid state);

FIG. 4 is a cross-sectional view of the horizontal static pressure sliding table of the I-shaped structure of the present invention;

fig. 5 is a top view of the arrangement of the guide rail and the bottom plate of the present invention;

the oil filling device comprises a product 1, a product 2, a sliding plate 3, a hydrostatic bearing 4, a fixing plate 5, a guide rail 6, a guide rail pair 7, an oil filling hole 8, an oil cavity 9, a hydrostatic oil film 10, an oil frame 11, an oil return hole 12, an upper oil film layer 13, a lower oil film layer 14, a bottom plate 15, an upper oil cavity 16, a lower oil cavity 17 and an oil return groove.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art based on these embodiments are all included in the scope of the present invention.

Terms such as "upper," "above," "lower," "below," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The following examples further illustrate the technical solution of the present invention.

Example (b):

as shown in fig. 4-5, the utility model provides a static pressure formula horizontal slip table of I shape structure, including slide 2, guide rail 5 and bottom plate 14, the cross section of guide rail 5 is the shape of falling T, slide 2 sets up the top at the shape of falling T guide rail 5, and form the I shape structure through fastener and guide rail 5 fixed connection, bottom plate 14 and the mutual clearance fit of recess of I shape structure, and all be equipped with the oil film layer in the clearance of the upper surface of bottom plate 14 and the lower surface of slide 2 and the lower surface of bottom plate 14 and the upper surface of guide rail 5, this oil film layer is used for bearing the weight of test piece and provides the lubrication action for the slip of horizontal direction. The utility model discloses a regard the lower surface of horizontal slip table slide 2 and the upper surface of guide rail 5 as the glide plane, the I shape structure motion piece of its constitution slides on the oil film layer, comes the vibration of analogue test indoor shaking table horizontal direction. Compare prior art, regard slide bottom as oil film bearing area, through this kind of mode, in limited area, the bearing area who obtains is the biggest, and same slide size can produce bigger bearing capacity, reduce cost increases equipment rate of utilization.

Specifically, as shown in fig. 4, an oil filling hole 7 is formed inside the bottom plate 14, an upper oil cavity 15 and a lower oil cavity 16 are respectively formed on the upper surface and the lower surface of the bottom plate 14, and the upper oil cavity 15 and the lower oil cavity 16 are concave oil grooves and are uniformly distributed on two sides of the i-shaped structure. Hydraulic oil enters the conduit through the oil filler hole 7 and communicates the above-described upper and

lower oil chambers

15 and 16 through the conduit. After hydraulic oil enters the upper and lower oil cavities, an upper oil film layer 12 is formed in a gap between the upper surface of the bottom plate 14 and the lower surface of the sliding plate, a lower oil film layer 13 is formed in a gap between the lower surface of the bottom plate 14 and the upper surface of the guide rail 5, a sliding oil film is provided for the sliding surface of the I-shaped structure, mechanical contact does not exist between the sliding plate and the guide rail and the bottom plate under the action of the oil film layers, and the sliding plate, the guide rail and the bottom plate are free of friction resistance and mechanical abrasion.

In the preferred embodiment of the present invention, the number of the upper oil chambers 15 is more than that of the lower oil chambers 16 in order to provide more sliding oil film layers on the lower surface of the slide plate.

The utility model discloses in, the pressure that the upper oil film layer formed is W1, and the pressure that the lower oil film layer formed is W2, then the biggest bearing capacity W0 of the static pressure formula horizontal slip table of I-shaped structure is for the difference between the pressure that upper oil film layer 12 and lower oil film layer 13 formed, and W0 is W1-W2 promptly. The pressure formed by the oil film layer is related to the flow resistance in the oil cavity and the effective bearing area of the oil cavity, and under the same condition, the larger the effective bearing area of the oil cavity is, the larger the integral load capacity of the horizontal sliding table is. The utility model discloses regard as oil film bearing area with the slide bottom, in limited area, the bearing area who acquires is the biggest, and same slide size can produce bigger bearing capacity, and reduce cost increases the equipment rate of utilization.

As shown in FIG. 5, the I-shaped structure of the present invention is distributed on the bottom plate 14 in a matrix of m x n, wherein m is greater than or equal to 0, n is greater than or equal to 0, and m and n are not simultaneously 0, for example: m is 0, n is 1,2,3 … … or n is 0, m is 1,2,3 … … or m is 1,2,3 … … and n is 1,2,3 … …. Preferably, m is n, and a square matrix form is formed on the base plate. The I-shaped structure is used as a moving part and connected with a moving coil of the vibration table, and the bottom plate is connected with a base of the electric vibration table. The bottom plate 14 is further provided with an oil return groove 17, the oil return groove 17 is arranged on one side, far away from the I-shaped structure, of the upper oil cavity 15, and the oil return groove 17 is connected with an oil return hole and used for recycling hydraulic oil and improving the recycling rate of the hydraulic oil.

Comparative example:

as shown in figures 2 and 3, the static pressure type horizontal sliding table comprises a sliding plate 2, a fixing plate 4, a T-shaped guide rail 5, a guide rail pair 6 and a static pressure bearing, wherein the sliding plate 2 is connected with the T-shaped guide rail 5 through a fastener, an oil filling hole 7 is formed in the static pressure bearing, crude oil enters a pipeline through the oil filling hole 7 and is communicated to an oil cavity 8, high-pressure oil is filled into the oil filling hole 7, a static pressure oil film 9 can be formed on the upper surface and the lower surface of the guide rail 5, and the guide rail 5 can freely slide on the static pressure oil film in the bearing. An oil return hole 11 is further formed in the fixing plate, and an oil frame 10 is further arranged on the outer side of the top face and used for preventing hydraulic oil from leaking outwards.

In above-mentioned T shape structure, the effective bearing area of static pressure oil film 9 relies on limited guide rail area all the time, the effective bearing area of oil film is less relatively, when needs carry out the heavy load test, the ability receives effective bearing area's restriction, often need arrange more hydrostatic bearing and just can satisfy the demands, but the increase of hydrostatic bearing quantity means the size grow of slide area, the weight of slide increases, same experimental requirement, if the thrust loss that will offset this part weight and bring, must adopt the shaking table of bigger thrust, make complete equipment purchasing cost, the maintenance cost rises by a wide margin, the availability factor also can descend.

And the utility model discloses the lower surface that directly uses the slide forms the oil film layer with the upper surface oil chamber of bottom plate, and horizontal slide's area is far greater than the actual area of guide rail, consequently technical scheme break away from "T" shape horizontal sliding table intrinsic structure restriction, increased the bearing capacity of slip table in limited horizontal sliding table area.

It should be noted that the above-mentioned embodiments are only for illustrating the preferred embodiments of the present invention, and the present invention is not intended to be limited in any way, so that any modification or change of the present invention, which is made within the spirit of the present invention, should be included in the scope of the protection of the present invention.

Claims

1. The utility model provides a static pressure formula horizontal slip table of I shape structure, includes slide (2), guide rail (5) and bottom plate (14), its characterized in that: the cross section of guide rail (5) is for falling T shape, slide (2) set up the top of guide rail (5), and through the fastener with guide rail (5) fixed connection forms the I shape structure, bottom plate (14) with the mutual clearance fit of recess of I shape structure, just the upper surface of bottom plate (14) with the lower surface of slide (2) and the lower surface of bottom plate (14) with be equipped with the oil film layer in the clearance of the upper surface of guide rail (5), the I shape structure is in slide on the oil film layer.

2. The static pressure type horizontal sliding table with the I-shaped structure as claimed in claim 1, wherein: an oil filling hole (7) is machined in the bottom plate (14), an upper oil cavity (15) and a lower oil cavity (16) are respectively machined on the upper surface and the lower surface of the bottom plate (14), and the oil filling hole (7) is communicated with the upper oil cavity (15) and the lower oil cavity (16) through a pipeline.

3. The static pressure type horizontal sliding table with the I-shaped structure as claimed in claim 2, wherein: the upper oil chamber (15) and the lower oil chamber (16) are concave oil grooves.

4. The static pressure type horizontal sliding table with the I-shaped structure as claimed in claim 2, wherein: the number of the upper oil chambers (15) is more than that of the lower oil chambers (16).

5. The static pressure type horizontal sliding table with the I-shaped structure as claimed in claim 2, wherein: the upper oil cavity (15) and the lower oil cavity (16) are uniformly distributed on two sides of the I-shaped structure.

6. The static pressure type horizontal sliding table with the I-shaped structure as claimed in claim 2, wherein: an upper oil film layer (12) is formed between the lower surface of the sliding plate (2) and the upper oil cavity (15), and a lower oil film layer (13) is formed between the upper surface of the guide rail (5) and the lower oil cavity (16).

7. The static pressure type horizontal sliding table with the I-shaped structure as claimed in claim 6, wherein: the maximum bearing capacity of the static pressure type horizontal sliding table with the I-shaped structure is the pressure difference formed by the upper oil film layer (12) and the lower oil film layer (13).

8. The static pressure type horizontal sliding table with the I-shaped structure as claimed in claim 1, wherein: the I-shaped structures are distributed on the bottom plate (14) in an m-n matrix form, wherein m is larger than or equal to 0, n is larger than or equal to 0, and m and n are not 0 at the same time.

9. The static pressure type horizontal sliding table with the I-shaped structure as claimed in claim 2, wherein: an oil return groove (17) is further formed in the bottom plate (14), and the oil return groove (17) is formed in one side, far away from the I-shaped structure, of the upper oil cavity (15).

10. The static pressure type horizontal sliding table with the I-shaped structure as claimed in claim 1, wherein: the bottom plate (14) is connected with a base of the electric vibration table.