A horizontal slide table for an electric vibration test bench

Abstract

This utility model discloses a horizontal slide table for an electric vibration test bench, applied in the field of electric vibration test bench technology. The key technical features are: it includes a lower vibration table and an upper vibration table fixedly connected to the lower vibration table; horizontal grooves are formed along the horizontal direction on both the upper and lower vibration tables; a horizontal slide table is slidably connected within the horizontal grooves; a first abutment plate and a second abutment plate are fixedly connected to the bottom of the horizontal slide table on both sides along the sliding direction; a plurality of abutment support shafts for abutting and supporting the first and second abutment plates are evenly and alternately rotatably connected to both sides of the horizontal groove along the sliding direction; and lubrication components for lubricating both ends of the abutment support shafts are provided within the horizontal grooves. The technical advantages are: simple structure and reduced friction.

Description

Technical Field

[0001] This utility model relates to the field of electric vibration test bench technology, and in particular to a horizontal slide table for an electric vibration test bench. Background Technology

[0002] As an auxiliary component of an electric vibration table, the horizontal slide table is used to transmit horizontal vibrations to the test sample, simulating horizontal vibrations. Traditional horizontal slide table devices generally use a hydraulic guide support mechanism, with high-pressure hydraulic oil supplied by the oil source to form a static pressure oil film between the base of the guide rail and the slider, which plays a role in lubrication and load bearing. The horizontal slide is fixed on the guide rail slider. However, the contact area between the guide rail slider and the guide rail is too large, and the increased mass acting on the guide rail leads to an increase in the friction between the guide rail and the guide rail slider. This results in a decrease in the intensity of horizontal vibration during horizontal vibration testing, affecting the results of the horizontal vibration test, and thus requires improvement. Utility Model Content

[0003] The purpose of this invention is to provide a horizontal slide for an electric vibration test bench, which has the advantages of simple structure and reduced friction.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a horizontal slide table for an electric vibration test bench, comprising a lower vibration table and an upper vibration table fixedly connected to the lower vibration table; a horizontal slide groove is provided on the upper vibration table and the lower vibration table along the horizontal direction, and a horizontal slide table is slidably connected in the horizontal slide groove; a first abutting plate and a second abutting plate are fixedly connected to the bottom of the horizontal slide table on both sides along the sliding direction, and a plurality of abutting support shafts for abutting and supporting the first abutting plate and the second abutting plate are evenly and alternately rotatably connected on both sides of the horizontal slide groove along the sliding direction; and a lubrication assembly for lubricating both ends of the abutting support shaft is provided in the horizontal slide groove.

[0005] The present invention is further configured such that: the abutting support shaft includes an abutting shaft body and an upper rotating shaft and a lower rotating shaft that are coaxially fixedly connected to both ends of the abutting shaft body along the vertical direction; an upwardly inclined support shaft is coaxially fixedly connected between the upper rotating shaft and the abutting shaft body; the distance between the center lines of adjacent abutting support shafts is D; and the radius of the abutting shaft body is R.

[0006] The present invention is further configured such that the tilt angle of the tilt support shaft is between 30 and 60°.

[0007] The present invention is further configured such that: the first abutting plate and the second abutting plate include a vertical abutting part arranged along the vertical direction for contacting the abutting shaft, and an inclined abutting part fixedly connected above the vertical abutting part for abutting the inclined support shaft.

[0008] The present invention is further configured such that: the width of the first abutting plate is between D+d and 2D, and the first abutting plate simultaneously contacts the axial surfaces of two abutting support shafts; the width of the second abutting plate is not greater than 2d, and the second abutting plate simultaneously contacts the axial surface of at most one abutting support shaft.

[0009] The present invention is further configured such that: the lubrication assembly includes a plurality of lower lubrication rotating grooves evenly spaced along the sliding direction on the lower vibration table for cooperating with the lower rotating shaft, and an upper lubrication rotating groove on the upper vibration table for cooperating with the upper rotating shaft; adjacent upper lubrication rotating grooves are connected by connecting grooves to allow lubricating oil to flow; a vertical oil supply pipe is provided along the vertical direction at the center of the abutting support shaft for lubricating oil to flow upward; at least three spiral conveying grooves are provided along the vertical direction in the vertical oil supply pipe for driving the lubricating oil in the lower lubrication rotating grooves to flow upward during the reciprocating rotation of the abutting support shaft to lubricate the upper rotating shaft.

[0010] The present invention is further configured such that: both the upper rotating shaft and the lower rotating shaft are provided with a spherical rotating contact ball for reducing the rotating contact surface; an outwardly expanding oil storage groove is coaxially formed inside the rotating contact ball located on the upper rotating shaft; and several inclined oil delivery grooves are formed along the circumferential direction on the rotating contact ball, which are connected to the oil storage groove to realize the lubrication of the inclined support shaft and the shaft wall of the abutting shaft.

[0011] The present invention is further configured such that the horizontal slide is made of rigid plastic material.

[0012] In summary, this utility model has the following beneficial effects:

[0013] 1. A first abutting plate and a second abutting plate are fixedly installed on both sides of the horizontal slide table along the sliding direction, and abutting support shafts are installed on both sides of the horizontal slide along the sliding direction. The abutting support shafts are provided with abutting shaft bodies and upwardly inclined support shafts. The abutting shaft bodies of the abutting support shafts provide stable guidance for the horizontal slide table through the vertical abutting parts of the first abutting plate and the second abutting plate, and provide support for the horizontal slide table by abutting the inclined abutting parts through the inclined support shafts. By setting the first abutting plate to contact the shaft surfaces of two abutting support shafts at the same time, and the second abutting plate to contact the shaft surface of at most one abutting support shaft at the same time, the horizontal slide table will not deviate during the sliding process, while the contact area between the first abutting plate and the second abutting plate and the abutting support shafts can be reduced. This ensures the sliding stability while reducing the friction during the sliding process of the horizontal slide table, and reduces the influence of friction on the vibration intensity of the horizontal slide table in the horizontal direction.

[0014] 2. The lubrication assembly comprises lower and upper lubrication rotary grooves respectively on the lower and upper vibration tables, with connecting grooves between adjacent lower lubrication rotary grooves. Lubricating oil is injected into the horizontal sliding grooves, ensuring the oil level does not exceed the bottom surfaces of the first and second abutment plates. This prevents the lubricating oil from being agitated during the high-frequency reciprocating sliding of the horizontal sliding table, thus avoiding resistance that could affect the vibration of the horizontal sliding table. However, to ensure sufficient lubrication between the abutment support shaft and the first and second abutment plates, a vertical oil supply pipe is opened at the center of the abutment support shaft, and multiple spiral conveying grooves are installed within the vertical oil supply pipe. When the vibration table drives the horizontal sliding table to reciprocate, it drives the abutment support rod. During reciprocating rotation, the lubricating oil is thrown to the outside of the shaft under the action of centrifugal force. At the same time, the structure of the spiral groove causes the oil to move upward along the spiral direction, so that the oil rises from the bottom of the shaft to the top and enters the oil storage tank. The lubricating oil overflowing from the oil storage tank lubricates the upper rotating shaft. Meanwhile, the lubricating oil in the oil storage tank is discharged from the inclined conveying groove and lubricates the inclined support shaft and the side wall of the abutting shaft. This ensures sufficient lubrication to reduce friction while also reducing the resistance of the lubricating oil to the first and second abutting plates. Rotating contact balls are set on the upper and lower rotating shafts to reduce the contact area between the rotating shaft and the rotating lubrication groove, thereby reducing the rotational resistance of the abutting support shaft. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the overall structure of this embodiment;

[0016] Figure 2 yes Figure 1 Enlarged schematic diagram of part A.

[0017] Reference numerals: 1. Lower vibration table; 2. Upper vibration table; 3. Horizontal slide groove; 4. Horizontal slide table; 5. First abutment plate; 51. Vertical abutment part; 52. Inclined abutment part; 6. Second abutment plate; 7. Abutment support shaft; 71. Abutment shaft body; 72. Upper rotating shaft; 73. Lower rotating shaft; 74. Inclined support shaft; 8. Lubrication assembly; 81. Lower lubrication rotating groove; 82. Upper lubrication rotating groove; 84. Vertical oil delivery pipe; 85. Spiral conveying groove; 86. Rotating contact ball; 87. Oil storage tank; 88. Inclined oil delivery groove. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Example:

[0020] refer to Figures 1 to 2 A horizontal slide table for an electric vibration test bench includes a lower vibration table 1 and an upper vibration table 2 fixedly connected to the lower vibration table 1. Horizontal slide grooves 3 are formed along the horizontal direction on the upper vibration table 2 and the lower vibration table 1. A horizontal slide table 4 is slidably connected in the horizontal slide grooves 3. A first abutting plate 5 and a second abutting plate 6 are fixedly connected to the bottom of the horizontal slide table 4 on both sides along the sliding direction. A plurality of abutting support shafts 7 for abutting and supporting the first abutting plate 5 and the second abutting plate 6 are evenly and alternately rotatably connected on both sides of the horizontal slide groove 3 along the sliding direction. The upper vibration table 2 and the lower vibration table 1 are detachable to facilitate replacement of the abutting support shafts 7. A lubrication assembly 8 for lubricating both ends of the abutting support shafts 7 is provided in the horizontal slide groove 3. In this embodiment, the horizontal slide 4 is made of hard plastic, and the first abutment plate 5 and the second abutment plate 6 are made of metal. This reduces the overall mass while ensuring sliding stability, thereby reducing the friction between the first abutment plate 5 and the second abutment plate 6 and the abutment support shaft 7 to a certain extent.

[0021] refer to Figure 1Specifically, the abutment support shaft 7 includes an abutment shaft body 71 and an upper rotating shaft 72 and a lower rotating shaft 73, which are coaxially fixedly connected to both ends of the abutment shaft body 71 along the vertical direction. An upwardly inclined support shaft 74 is coaxially fixedly connected between the upper rotating shaft 72 and the abutment shaft body 71. The inclination angle of the inclined support shaft 74 is between 30-60°, preferably 45°. By setting the abutment shaft body 71 and the upwardly inclined support shaft 74, the abutment shaft body 71 of the abutment support shaft 7 provides stable guidance for the horizontal slide table 4 through the vertical abutment part 51 of the first abutment plate 5 and the second abutment plate 6, and provides support for the horizontal slide table 4 by abutting the inclined abutment part 52 through the inclined support shaft 74. The distance between the center lines of adjacent abutting support shafts 7 is D, the radius of the abutting shaft body 71 is R, the first abutting plate 5 and the second abutting plate 6 include a vertical abutting part 51 arranged along the vertical direction for contacting the abutting shaft body 71 and an inclined abutting part 52 inclinedly fixedly connected above the vertical abutting part 51 for abutting the inclined support shaft 74. The width of the first abutting plate 5 is between D+d and 2D. The first abutting plate 5 simultaneously contacts the axial surfaces of two abutting support shafts 7. The width of the second abutting plate 6 is no greater than 2d. The second abutting plate 6 simultaneously contacts the axial surface of at most one abutting support shaft 7. By setting the first abutting plate 5 to simultaneously contact the axial surfaces of two abutting support shafts 7, and the second abutting plate 6 to simultaneously contact the axial surface of at most one abutting support shaft 7, the contact area between the first abutting plate 5 and the second abutting plate 6 and the abutting support shafts 7 can be reduced while ensuring the horizontal slide table 4 does not deviate during sliding. This ensures sliding stability while reducing the frictional force during the sliding process of the horizontal slide table 4, and reduces the influence of frictional force on the vibration intensity of the horizontal slide table 4 in the horizontal direction.

[0022] refer to Figure 2Specifically, the lubrication assembly 8 includes several lower lubrication rotating grooves 81 evenly spaced along the sliding direction on the lower vibration table 1 for cooperating with the lower rotating shaft 73, and upper lubrication rotating grooves 82 on the upper vibration table 2 for cooperating with the upper rotating shaft 72. Adjacent lower lubrication rotating grooves 81 are connected by connecting grooves to allow lubricating oil to flow. By opening lower lubrication rotating grooves 81 and upper lubrication rotating grooves 82 on the lower vibration table 1 and the upper vibration table 2 respectively, and by setting connecting grooves between adjacent lower lubrication rotating grooves 81, lubricating oil is injected into the horizontal sliding groove 3, and the oil level of the lubricating oil is not higher than the bottom of the first abutment plate 5 and the second abutment plate 6. To prevent the lubricating oil from being agitated during the high-frequency reciprocating sliding of the horizontal slide table 4, thus avoiding resistance that could affect the vibration of the horizontal slide table 4, a vertical oil supply pipe 84 is provided vertically at the center of the abutment support shaft 7 to allow the lubricating oil to flow upward. Within the vertical oil supply pipe 84, at least three spiral conveying grooves 85 are provided vertically to drive the lubricating oil in the lower lubrication rotating groove 81 upward during the reciprocating rotation of the abutment support shaft 7, thereby lubricating the upper rotating shaft 72. Both the upper rotating shaft 72 and the lower rotating shaft 73 are provided with spherical rotating contact balls 86 to reduce the rotational contact surface. The rotating contact ball 86 located on the upper rotating shaft 72... An oil reservoir 87 with an outwardly expanding structure is coaxially formed on the inner side. Several inclined oil delivery grooves 88 are formed along the circumference of the rotating contact ball 86, communicating with the oil reservoir 87 to lubricate the inclined support shaft 74 and the shaft wall of the abutting shaft 71. To ensure sufficient lubrication between the abutting support shaft 7 and the first abutting plate 5 and the second abutting plate 6, a vertical oil delivery pipe 84 is formed at the center of the abutting support shaft 7, and multiple spiral delivery grooves 85 are arranged within the vertical oil delivery pipe 84. When the vibrating table drives the horizontal slide table 4 to slide back and forth, thereby driving the abutting support rod to rotate back and forth, the lubricating oil is thrown to the outside of the shaft under the action of centrifugal force. Simultaneously, the spiral groove structure... This causes the oil to move upwards along the spiral direction, allowing it to rise from the bottom of the shaft to the top and enter the oil reservoir 87. The lubricating oil overflowing from the oil reservoir 87 lubricates the upper rotating shaft 72. Simultaneously, the lubricating oil in the oil reservoir 87 is discharged from the inclined conveying channel and lubricates the inclined support shaft 74 and the side wall of the abutting shaft 71. This ensures sufficient lubrication to reduce friction while also reducing the resistance of the lubricating oil to the first abutting plate 5 and the second abutting plate 6. Rotating contact balls 86 are provided on the upper rotating shaft 72 and the lower rotating shaft 73 to reduce the contact area between the rotating shaft and the rotating lubrication channel, thereby reducing the rotational resistance of the abutting support shaft 7.

[0023] Brief description of the usage process: The abutting shaft 71 of the abutting support shaft 7 provides stable guidance for the horizontal slide 4 through the vertical abutting part 51 of the first abutting plate 5 and the second abutting plate 6, and provides support for the horizontal slide 4 by abutting the inclined abutting part 52 through the inclined support shaft 74. By setting the first abutting plate 5 to contact the shaft surface of two abutting support shafts 7 at the same time, and the second abutting plate 6 to contact the shaft surface of at most one abutting support shaft 7 at the same time, the horizontal slide 4 can be guaranteed not to deviate during the sliding process, while also reducing the contact area between the first abutting plate 5 and the second abutting plate 6 and the abutting support shaft 7, thus ensuring the sliding stability and reducing the friction during the sliding process of the horizontal slide 4.

[0024] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment that make creative contributions as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A horizontal slide for an electric vibration test bench, comprising a lower vibration table (1) and an upper vibration table (2) fixedly connected to the lower vibration table (1); characterized in that, The upper vibration table (2) and the lower vibration table (1) are provided with horizontal sliding grooves (3) along the horizontal direction. A horizontal slide table (4) is slidably connected in the horizontal sliding groove (3). A first abutting plate (5) and a second abutting plate (6) are fixedly connected to the bottom of the horizontal slide table (4) on both sides along the sliding direction. A plurality of abutting support shafts (7) for abutting and supporting the first abutting plate (5) and the second abutting plate (6) are evenly and alternately rotatably connected to both sides of the horizontal sliding groove (3) along the sliding direction. A lubrication assembly (8) for lubricating both ends of the abutting support shaft (7) is provided in the horizontal sliding groove (3).

2. A horizontal slide for an electric vibration test bench according to claim 1, characterized in that, The abutting support shaft (7) includes an abutting shaft body (71) and an upper rotating shaft (72) and a lower rotating shaft (73) that are coaxially fixed to both ends of the abutting shaft body (71) along the vertical direction. An upwardly inclined support shaft (74) is coaxially fixed between the upper rotating shaft (72) and the abutting shaft body (71). The distance between the center lines of adjacent abutting support shafts (7) is D, and the radius of the abutting shaft body (71) is R.

3. A horizontal slide for an electric vibration test bench according to claim 2, characterized in that, The tilt angle of the inclined support shaft (74) is between 30 and 60°.

4. A horizontal slide for an electric vibration test bench according to claim 3, characterized in that, The first abutting plate (5) and the second abutting plate (6) include a vertical abutting part (51) arranged in the vertical direction for contacting the abutting shaft (71) and an inclined abutting part (52) fixedly connected above the vertical abutting part (51) for abutting the inclined support shaft (74).

5. A horizontal slide for an electric vibration test bench according to claim 4, characterized in that, The width of the first abutting plate (5) is between D+d and 2D. The first abutting plate (5) is in contact with the axial surfaces of two abutting support shafts (7) at the same time. The width of the second abutting plate (6) is not greater than 2d. The second abutting plate (6) is in contact with the axial surface of at most one abutting support shaft (7) at the same time.

6. A horizontal slide for an electric vibration test bench according to claim 2, characterized in that, The lubrication assembly (8) includes several lower lubrication rotating grooves (81) evenly spaced along the sliding direction on the lower vibration table (1) for cooperating with the lower rotating shaft (73) and an upper lubrication rotating groove (82) on the upper vibration table (2) for cooperating with the upper rotating shaft (72). Adjacent lower lubrication rotating grooves (81) are connected by connecting grooves to allow lubricating oil to flow. A vertical oil pipe (84) for lubricating oil to flow upward is provided at the center of the abutment support shaft (7). At least three spiral conveying grooves (85) are provided in the vertical direction in the vertical oil pipe (84) to drive the lubricating oil in the lower lubrication rotating grooves (81) to flow upward during the reciprocating rotation of the abutment support shaft (7) to lubricate the upper rotating shaft (72).

7. A horizontal slide for an electric vibration test bench according to claim 6, characterized in that, Both the upper rotating shaft (72) and the lower rotating shaft (73) are provided with a spherical rotating contact ball (86) for reducing the rotating contact surface. The rotating contact ball (86) located on the upper rotating shaft (72) has an outwardly expanding oil reservoir (87) coaxially formed inside. The rotating contact ball (86) has several inclined oil delivery grooves (88) along the circumferential direction that are connected to the oil reservoir (87) to lubricate the inclined support shaft (74) and the shaft wall of the abutting shaft (71).

8. A horizontal slide for an electric vibration test bench according to claim 1, characterized in that, The horizontal slide (4) is made of rigid plastic.

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