Placing and pressing equipment for bending resistance test of metal beam column

Abstract

The utility model discloses placing and pressing equipment for a bending resistance test of a metal beam column. The placing and pressing equipment comprises a bottom plate, a support, a U-shaped bracket and a pressing roller, the bottom plate is of a horizontal plate-shaped structure, two sets of supports of cylindrical structures are perpendicularly fixed to the bottom plate, two sets of U-shaped brackets with U-shaped longitudinal sections are fixed to the tops of each set of supports, and openings of the U-shaped brackets are arranged upwards. The two sides of each U-shaped bracket are each provided with a deflection rod in a rotating fit mode, and the other ends of the two deflection rods on the same U-shaped bracket are jointly and fixedly provided with a lower pressing roller of a cylindrical structure. A transmission beam capable of applying downward pressure to the two groups of lower pressing rollers is arranged above the two groups of lower pressing rollers, two component force blocks are respectively arranged at the corresponding positions of the two groups of lower pressing rollers below the transmission beam, and V-shaped openings capable of being meshed with the lower pressing rollers are formed in the bottoms of the component force blocks; the pressing roller has the advantages that the pressing roller is dual-purpose, and equipment cost is saved; the device can be suitable for bending resistance tests of different spans; the device is suitable for to-be-measured beam rods of various sizes.

Description

TECHNICAL FIELD

[0001] The utility model belongs to metal strength test equipment technical field, especially relate to a kind of for the placing and pressing equipment for metal beam pole bending test. BACKGROUND

[0002] With the development of science and technology, the strength requirements of materials in the fields of construction, automobile and production are higher and higher, and the bending strength is an important indicator affecting the strength of materials.

[0003] Most of the existing bending test equipment, such as the patent document with publication number CN220568581U, needs to set up a separate clamping mechanism and a separate pressure release mechanism, which wastes a lot of equipment cost, so this application proposes a bending test mechanism that combines the clamping mechanism and the pressure release mechanism. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of for the placing and pressing equipment for metal beam pole bending test, to solve the technical problem of wasting a lot of equipment cost in the above background technology.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] A kind of for the placing and pressing equipment for metal beam pole bending test, it include: bottom plate, support, U-shaped bracket, press roll;The bottom plate is horizontal plate structure, two groups of columnar structure supports are vertically fixed on the bottom plate, the top of each group of support is fixed with two groups of U-shaped bracket with longitudinal section being U-shaped, the opening of U-shaped bracket is set upwards;Each side of each group of U-shaped bracket is respectively rotationally connected with a deflection rod, the other end of the two groups of deflection rods on the same U-shaped bracket is fixed with a cylindrical press roll;The upper side of two groups of press rolls is provided with a transmission beam that can apply pressure thereto, a force block is arranged below the transmission beam at the corresponding position of two groups of press rolls, and the bottom of the force block is provided with a V-shaped opening that can engage the press roll.

[0007] Further, in order to limit the forward and backward movement of the press roll to the beam rod to be tested, ensure that the force block is engaged in the middle of the press roll during each test, and improve the uniformity of stress, the press roll is provided with a limiting wheel of wheel structure at each end, and the limiting wheel clamps and limits the front and back sides of the beam rod to be tested during use.

[0008] Further, in order to test the different span under the bending resistance test, the bottom of the support is detachably connected with the bottom plate, the bottom of the support is fixed with the plate-shaped connecting plate, the bottom plate is provided with two groups of parallel sliding grooves on the two sides below the two groups of supports, each group of sliding grooves is embedded with a sliding bolt below each group of connecting plates, the nut of the sliding bolt is limited in the sliding groove, the screw rod of the sliding bolt penetrates the connecting plate and rotates the lock nut, and the nut locks and fixes the connecting plate, the sliding bolt and the bottom plate.

[0009] Further, in order to make the position of the force block change along with the position of the support, the transmission beam is provided with an internally arranged adjusting groove, each group of force blocks is fixed with a sliding block above the force block, and the sliding block and the adjusting groove are in sliding fit.

[0010] Further, in order to accurately count the span position during the test, the side surface of the transmission beam is provided with a scale line indicating the position of the force block, and the V-shaped groove on the force block is used to indicate the scale position on the scale line.

[0011] Further, in order to make the transmission beam be provided with average downward pressure by only one group of power mechanisms, the middle part of the top of the transmission beam is fixed with a force block, the upper part of the force block is provided with an open-top V-shaped groove, the upper part of the force block is provided with a pressing block, and the lower part of the pressing block is provided with a V-shaped contour embedded in the V-shaped groove of the force block.

[0012] Further, in order to make the limiting wheel adapt to different widths of the to-be-tested beam rod, the downward roller, the limiting wheel and the deflection rod are detachably connected, different lengths of the downward roller and different thicknesses of the limiting wheel can be selected for assembly according to the width of the to-be-tested beam rod.

[0013] In summary, the utility model has the following beneficial effects:

[0014] ①The downward roller can be temporarily pressed and pressed downward at the same time, and one rod has two functions, saving equipment cost: rotating the deflection rod, the downward roller and the limiting wheel as a whole, opening the space between the U-shaped bracket and the downward roller, horizontally placing the to-be-tested beam rod on the two groups of U-shaped brackets, and downwardly deflecting the deflection rod, the downward roller and the limiting wheel as a whole, so that the downward roller and the groove bottom of the U-shaped bracket clamp the to-be-tested beam rod; because the length of the downward roller is consistent with the width of the to-be-tested beam rod, the limiting wheels at both ends of the downward roller limit the front and rear of the to-be-tested beam rod, and then the to-be-tested beam rod is temporarily placed and temporarily pressed by the limiting wheel according to the above principle, and the downward pressure of the downward roller can be applied to press the to-be-tested beam rod, so that the downward roller can be used as a pressing piece and a downward power piece.

[0015] ② Can be applied to different span bending test: when the need to adjust the depression span, loosen all the nuts, can adjust the relative position of the connecting plate and sliding groove, and then change the relative distance of the two sets of connecting plate upper support, and then adjust the distance between the two sets of connecting plate upper support, and then complete the adjustment of the depression span, and then lock all the nuts.

[0016] ③ Can be applied to a variety of sizes of the measured beam: through the lower pressure roller, limit wheel and deflection bar for detachable connection design, can be selected according to the width of the measured beam, select different length of the lower pressure roller, different thickness of the limit wheel to adapt to the measured beam. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the overall structure of the present utility model schematic diagram;

[0018] Figure 2 is the use structure of the present utility model schematic diagram;

[0019] Figure 3 is the principle structure of the present utility model to the measured beam of clamping and pressing schematic diagram;

[0020] Figure 4 is the support adjustment structure schematic diagram of the present utility model for different span depression measurement;

[0021] Figure 5 is the bottom structure of the present utility model transfer beam schematic diagram;

[0022] Figure 6 is the working principle schematic diagram of the present utility model to the measured beam of clamping;

[0023] Figure 7 is the real machine demonstration schematic diagram of the present utility model.

[0024] In the figure, 1, bottom plate;2, support;3, U-shaped bracket;4, deflection bar;5, lower pressure roller;6, limit wheel;7, transfer beam;8, pressing block;9, deformation test element;10, measured beam;11, sliding groove;21, connecting plate;22, sliding bolt;23, nut;71, stress block;72, force block;73, scale;74, adjusting groove;75, sliding block. DETAILED DESCRIPTION

[0025] The present utility model is further described in detail below in conjunction with the drawings.

[0026] Embodiment:

[0027] Please refer to Figures 1-7 , the present utility model provides technical scheme:

[0028] The utility model provides a kind of placing and pressing equipment for metal beam rod bending test, including: bottom plate 1, support 2, U-shaped bracket 3, press roller 5;The bottom plate 1 is horizontal plate structure, and two groups of columnar structure supports 2 are vertically fixed on bottom plate 1, the top of each group of support 2 is fixed with two groups of U-shaped bracket 3 with longitudinal section being U-shaped, and the opening of U-shaped bracket 3 is upwardly arranged;Each side of each group of U-shaped bracket is respectively rotationally fitted with a deflection rod 4, and the other end of two groups of deflection rods 4 on the same U-shaped bracket is fixed with a cylindrical press roller 5;The upper side of two groups of press roller 5 is provided with a transmission beam 7, which can apply a pressing force thereto, and a force block 72 is arranged below the transmission beam 7 at the corresponding position of the two groups of press roller 5, and the bottom of the force block 72 is provided with a V-shaped opening that can engage the press roller 5.

[0029] In order to limit the forward and backward movement of the beam rod 10 to be tested by the press roller 5, ensure that the force block 72 is engaged in the middle of the press roller 5 each time, and improve the uniformity of stress, a limiting wheel 6 in the form of a wheel is arranged at the two ends of the press roller 5, and the limiting wheel 6 clamps and limits the beam rod 10 to be tested on the two sides during use.

[0030] In order to test different spans during bending test, the bottom of the support 2 is detachably connected to the bottom plate 1, the bottom of the support 2 is fixed with a plate-shaped connecting plate 21, the bottom plate 1 is provided with two groups of sliding grooves 11 parallel to each other below the two groups of supports 2, a sliding bolt 22 is slidably embedded below each connecting plate 21 in each group of sliding grooves 11, the nut of the sliding bolt 22 is limited in the sliding groove 11, the screw rod of the sliding bolt 22 penetrates the connecting plate 21 after protruding from the sliding groove 11, and then the locking nut 23 is rotated, and the nut 23 locks and fixes the connecting plate 21, the sliding bolt 22 and the bottom plate 1.

[0031] In order to change the position of the force block 72 along with the position of the support 2, an adjusting groove 74 is arranged inside the transmission beam 7, a sliding block 75 is fixed above each force block 72, and the sliding block 75 and the adjusting groove 74 are in sliding fit.

[0032] In order to accurately count the span position during test, a scale line 73 is arranged on the side of the transmission beam 7 to indicate the position of the force block 72, and the tip of the V-shaped groove on the force block 72 is used to indicate the scale position on the scale line 73.

[0033] In order to provide an average pressing force to the transmission beam 7 by only one group of power mechanism, a force block 71 is fixed in the middle of the top of the transmission beam 7, a V-shaped groove with an upper opening is arranged on the upper part of the force block 71, a pressing block 8 is arranged above the force block 71, and a V-shaped contour is arranged below the pressing block 8 to be embedded in the V-shaped groove of the force block 71.

[0034] In order to make the limiting wheel 6 can adapt to different width of the beam to be measured 10, the lower roller 5, the limiting wheel 6 and the deflection rod 4 are detachable connection, can be according to different width of the beam to be measured 10, select different length of the lower roller 5, different thickness of the limiting wheel 6 for assembly.

[0035] Brief description of the use process:

[0036] In use, first according to the width of the beam to be measured 10, select different length of the lower roller 5, different thickness of the limiting wheel 6; The selection criteria are: the length of the lower roller 5 and the width of the beam to be measured 10 are consistent, the thickness of the limiting wheel 6 should meet, the thickness of the limiting wheel 6 plus the length of the lower roller 5 and the distance between the same side of the deflection rod 4 are consistent.

[0037] First, arrange a number of deformation test elements 9 on the beam to be measured 10, and then rotate the deflection rod 4, the lower roller 5 and the limiting wheel 6 on the U-shaped bracket 3 as shown in state ① in Figure 6 , open the space between the U-shaped bracket 3 and the lower roller 5, and then place the beam to be measured 10 horizontally on the two groups of U-shaped bracket 3 as shown in state ② in Figure 6 ; Deflect the deflection rod 4, the lower roller 5 and the limiting wheel 6 downward, so that the lower roller 5 and the groove bottom of the U-shaped bracket 3 clamp the beam to be measured 10 as shown in state ③ in Figure 6 ; Because the length of the lower roller 5 and the width of the beam to be measured 10 are consistent, the limiting wheel 6 at both ends of the lower roller 5 will limit the front and rear of the beam to be measured 10, and then combine the above principle, the beam to be measured 10 is temporarily placed and temporarily held as shown in Figure 3 (placed non-fixed).

[0038] Again, the pressure block 8 is connected with the pressure holding power source (such as the pressure holding mechanism shown in CN212059634U, or other power sources with the ability to press down, such as existing hydraulic rods); Adjust the two groups of force blocks 72 below the transmission beam 7 to approximately correspond to the position of the two groups of lower rollers 5.

[0039] Again, start the power source connected with the pressure block 8 to press down the pressure block 8, and the pressure block 8 is pressed into the V-shaped groove on the force receiving block 71. Because of the establishment of the V-shaped groove, the pressure block 8 will be accurately pressed into the center position of the force receiving block 71.

[0040] The external power source continues to press down the pressure block 8, and the force receiving block 71 is pressed to transmit the pressure to the two groups of force blocks 72 through the transmission beam 7. Because of the establishment of the V-shaped groove below the force block 72,

[0041] When the force block 72 presses the lower pressing roller 5 through the V-shaped groove thereon, the lower pressing roller 5 is clamped in the middle position due to the shape characteristics of the V-shaped groove, and since the lower pressing roller 5 is in a fixed state, the force block 72 will be slightly displaced in the adjusting groove 74 through the sliding block 75, so that the force block 72 is pressed in the middle of the lower pressing roller 5 through the V-shaped groove thereon, at this time, the scale position on the scale line 73 is read through the V-shaped groove on the force block 72, and recorded as the lower pressing span.

[0042] The external power source continues to press the pressing block 8 until the test beam 10 is bent, and the deformation test element 9 on the test beam 10 records the deformation of the test beam 10 in real time, and then the bending resistance of the test beam 10 is analyzed in combination with the lower pressing span value read by the scale line 73 (the deformation test element 9 is a direct application of the present application and is not within the protection scope of the present application, and can use a resistance strain gauge, and the specific principle of the resistance strain gauge can refer to CN105241371B).

[0043] When it is necessary to adjust the lower pressing span, loosen all the nuts 23 to adjust the relative position of the connecting plate 21 and the sliding groove 11, so as to change the relative distance between the two groups of connecting plates 21 and the supports 2, and then adjust the distance between the lower pressing rollers 5 on the supports 2, and then complete the adjustment of the lower pressing span, and then lock all the nuts 23.

[0044] The specific embodiment is only an explanation of the present application, and is not a limitation of the present application, and those skilled in the art can make non-creative modifications to the embodiment according to the needs after reading the specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A placement and pressing apparatus for a bending test of a metal beam rod, comprising: The utility model relates to a kind of press roller device, including bottom plate (1), support (2), U-shaped bracket (3), press roller (5);Its characterized in that: the bottom plate (1) is horizontal plate structure, two groups of cylindrical structure's support (2) are vertically fixed on bottom plate (1), the top of each group of support (2) is fixed with two groups of longitudinal section U-shaped U-shaped bracket (3), the opening of U-shaped bracket (3) is set upwards;Each group of U-shaped bracket's two sides are respectively rotationally cooperated with a deflection rod (4), the other end of two groups of deflection rods (4) on same U-shaped bracket is fixed with a cylindrical structure's press roller (5) in common;The upper side of two groups of press roller (5) is provided with a transmission beam (7) that can exert pressure on it, the lower side of transmission beam (7) is provided with a force block (72) at the corresponding position of two groups of press roller (5), the bottom of force block (72) is provided with V-shaped opening that can be engaged on press roller (5).

2. The placing and pressing apparatus for the bending test of metal beam rods according to claim 1, characterized in that: The both ends of the press roller (5) are respectively provided with a limiting wheel (6) of wheel structure.

3. The placing and depressing apparatus for the bending test of metal beam rods according to claim 1, characterized in that: The bottom of the support (2) is connected with the bottom plate (1) in a detachable manner, the bottom of the support (2) is fixed with a connecting plate (21) of plate structure, the bottom plate (1) is provided with two groups of sliding grooves (11) parallel to each other below the two groups of supports (2), each group of sliding grooves (11) is slidably embedded with a sliding bolt (22) below each group of connecting plates (21), the nut of the sliding bolt (22) is limited in the sliding groove (11), the screw rod of the sliding bolt (22) penetrates the connecting plate (21) after protruding from the sliding groove (11) and then rotates the lock nut (23), the nut (23) locks and fixes the connecting plate (21), the sliding bolt (22) and the bottom plate (1).

4. The placing and depressing apparatus for the bending test of metal beam rods according to claim 1, characterized in that: The lower side of the transmission beam (7) is provided with an internally arranged adjusting groove (74), each group of force blocks (72) is fixed with a sliding block (75) above, and the sliding block (75) and the adjusting groove (74) are in sliding cooperation.

5. The placing and depressing apparatus for the bending test of metal beam rods according to claim 1, characterized in that: The side surface of the transmission beam (7) is provided with a scale line (73) that can indicate the position of the force block (72), and the tip of the V-shaped groove on the force block (72) is used to indicate the scale position on the scale line (73).

6. The placing and depressing apparatus for the bending test of metal beam rods according to claim 1, characterized in that: The top middle part of the transmission beam (7) is fixed with a force receiving block (71), the upper part of the force receiving block (71) is provided with an open-top V-shaped groove, the upper side of the force receiving block (71) is provided with a pressing block (8), and the lower side of the pressing block (8) is provided with a V-shaped contour that can be embedded in the V-shaped groove of the force receiving block (71).

7. The placing and depressing apparatus for the bending test of metal beam rods according to claim 2, characterized in that: The press roller (5), the limiting wheel (6) and the deflection rod (4) are detachably connected.

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