CN218725969U - Bottom lifting mechanism of drop hammer impact testing machine for plastic pipe - Google Patents

Abstract

The utility model discloses a bottom elevating system of drop hammer impact tester for plastic pipe, including the main tank body, the left part and the right part of the inside of main tank body all are equipped with vertical screw rod, and the upper end and the lower extreme of vertical screw rod all pass through bearing swing joint on the roof and the bottom plate of main tank body, and the lower part of vertical screw rod is fixed with drive sprocket, the middle part of vertical screw rod all has the spiro union to connect the connecting plate, and the lifter plate is fixed on the top surface of two connecting plates, and the middle part of lifter plate is equipped with two and removes the locating piece, and the relative wall that removes the locating piece is the oblique wall, and the bottom of two oblique walls is close to, and the top is kept away from mutually; it can satisfy the body of different diameters and fix a position through adjusting the distance between two removal locating pieces, and it is convenient to adjust.

Description

Bottom lifting mechanism of drop hammer impact testing machine for plastic pipe

The technical field is as follows:

the utility model relates to an underground communication pipeline check out test set technical field, more specifically say and relate to a plastic pipe is with bottom elevating system of hammer impact tester that falls.

Background art:

the plastic pipe is a common raw material in the construction of highway bridges, is used in a large amount in the process of penetrating prestressed tendons in prestressed concrete bridges or in the process of burying underground communication pipelines of the highway, and belongs to a high-consumption product. Considering that the use of plastic pipes is a more critical part, more strict requirements are put forward for the physical and chemical properties of the plastic pipes, and the drop weight impact property of the plastic pipes is one of the indexes which must be strictly controlled.

The existing drop hammer impact testing machine can conveniently realize test temperature control and is convenient for low-temperature pipe drop hammer impact test, such as a pipe drop hammer impact testing machine with the Chinese patent application number of 202020909406.2 and controllable in low-temperature environment. However, it still has adopted the V-arrangement piece to advance line location to the location structure of body, however, the V-arrangement groove size of V-arrangement piece is certain, and its locate effect is limited, to some oversize bodies of diameter, it needs to change the bigger block in V-arrangement groove, and it dismantles and changes the trouble, and the effect is poor.

Meanwhile, the existing lifting plate is directly screwed on two vertical screws, and once the lifting plate is detached, the vertical screws need to be detached, so that the replacement is troublesome.

The utility model has the following contents:

the utility model aims at overcoming the not enough of prior art, provide a plastic pipe is with bottom elevating system who drops hammer impact tester, it can be through adjusting two distances of removing between the locating piece, satisfies the body of different diameters and fixes a position, and it adjusts the convenience.

The utility model provides a technical problem's scheme is:

a bottom lifting mechanism of a drop hammer impact testing machine for plastic pipes comprises a main box body, wherein vertical screws are arranged on the left part and the right part of the interior of the main box body respectively, the upper ends and the lower ends of the vertical screws are movably connected to a top plate and a bottom plate of the main box body through bearings, a transmission chain wheel is fixed to the lower portions of the vertical screws, connecting plates are screwed to the middle portions of the vertical screws, a lifting plate is fixed to the top surfaces of the two connecting plates, two movable positioning blocks are arranged in the middle of the lifting plate, opposite wall surfaces of the two movable positioning blocks are oblique wall surfaces, the bottom portions of the two oblique wall surfaces are close to each other, and the top portions of the two oblique wall surfaces are far away from each other;

the front part and the rear part of the middle part of the lifting plate are both screwed with adjusting bolts, the top ends of the screw rod parts of the adjusting bolts extend out of the top surface of the lifting plate and are movably connected to the same bottom supporting plate extending back and forth, and the bottom supporting plate is positioned between the two movable positioning blocks.

Side supporting plates are fixed to the left portion and the right portion of the top face of the lifting plate, threaded through holes are formed in the middle of the side supporting plates, screw portions of the transverse adjusting bolts are in threaded connection with the corresponding threaded through holes, and the inner ends of the screw portions of the transverse adjusting bolts extend out of the inner wall faces of the corresponding side supporting plates and are movably connected with the movable positioning blocks;

the outer end of the screw rod part of the transverse adjusting bolt extends out of the corresponding side supporting plate and is formed with a rotating part.

The bottom surface of the movable positioning block is fixed with a plurality of sliding guide blocks, a plurality of transverse guide through grooves are formed in the lifting plate, and the sliding guide blocks are inserted in the corresponding transverse guide through grooves.

And a rear limiting baffle is fixed on the top surface of the middle part of the rear part of the lifting plate.

The top surface of the middle part of the bottom plate of the main box body is movably connected with a transmission shaft through a bearing, a driving chain wheel is fixed on the transmission shaft, a motor support frame is fixed on the top surface of the middle part of the bottom plate of the main box body, a driving motor is fixed on the bottom surface of a top plate of the motor support frame, and an output shaft of the driving motor is connected with the top part of the transmission shaft;

the drive chain is tensioned over the two drive sprockets and the drive sprocket.

The utility model discloses an outstanding effect is:

the distance between the two movable positioning blocks can be adjusted, so that pipe bodies with different diameters can be positioned, and the adjustment is convenient;

simultaneously, its lifter plate is fixed on two connecting plates, and the connecting plate spiro union is on vertical screw rod for when its lifter plate need dismantle only need with it follow two connecting plates dismantle can, it is convenient to dismantle.

Description of the drawings:

fig. 1 is a partial structural schematic diagram of the present invention;

fig. 2 is a partial plan view of the main box of the present invention at the bottom plate;

fig. 3 is a partial plan view of the lifter plate of the present invention.

The specific implementation mode is as follows:

in an embodiment, as shown in fig. 1 to 3, a bottom lifting mechanism of a drop hammer impact testing machine for plastic pipes comprises a main box body 10, wherein vertical screws 11 are respectively arranged at the left part and the right part inside the main box body 10, the upper ends and the lower ends of the vertical screws 11 are respectively movably connected to a top plate and a bottom plate of the main box body 10 through bearings, a transmission chain wheel 12 is fixed at the lower part of each vertical screw 11, connecting plates 13 are respectively screwed at the middle parts of the vertical screws 11, a lifting plate 20 is fixed on the top surfaces of the two connecting plates 13 through bolts, two movable positioning blocks 21 are arranged at the middle part of the lifting plate 20, the opposite wall surfaces of the two movable positioning blocks 21 are oblique wall surfaces, the bottom parts of the two oblique wall surfaces are close to each other, and the top parts of the two oblique wall surfaces are far away from each other;

the front part and the rear part of the middle part of the lifting plate 20 are both in threaded connection with adjusting bolts 22, the top ends of the screw rod parts of the adjusting bolts 22 extend out of the top surface of the lifting plate 20 and are movably connected to the same front-back extending bottom supporting plate 23 through bearings, and the bottom supporting plate 23 is located between the two movable positioning blocks 21. The bottom of the screw portion of the adjusting bolt 22 protrudes from the bottom surface of the elevating plate 20 and is formed with a rotating portion.

Furthermore, side support plates 24 are fixed on the left and right parts of the top surface of the lifting plate 20, screw through holes are formed in the middle parts of the side support plates 24, screw portions of the transverse adjusting bolts 25 are screwed in the corresponding screw through holes, and inner ends of the screw portions of the transverse adjusting bolts 25 extend out of the inner wall surfaces of the corresponding side support plates 24 and are movably connected to the movable positioning block 21;

the outer end of the screw part of the transverse adjusting bolt 25 extends out of the outer side wall of the corresponding side supporting plate 24 and is formed with a rotating part, the middle part of the outer end of the movable positioning block 21 is formed with an inner groove, and the inner end of the screw part of the transverse adjusting bolt 25 extends into the inner groove and is movably connected onto the connecting part on the inner wall surface of the inner groove through a bearing.

Furthermore, a plurality of sliding guide blocks 211 are fixed on the bottom surface of the movable positioning block 21, a plurality of transverse guide through grooves 26 are formed on the lifting plate 20, the sliding guide blocks 211 are inserted in the corresponding transverse guide through grooves 26, and the side walls of the sliding guide blocks 211 are close to or closely attached to the inner side walls of the corresponding transverse guide through grooves 26.

Further, a rear limit baffle 27 is fixed to the top surface of the middle portion of the rear portion of the lifting plate 20.

Furthermore, a transmission shaft 14 is movably connected to the top surface of the middle part of the bottom plate of the main box 10 through a bearing, a driving chain wheel 15 is fixed on the transmission shaft 14, a motor support frame 16 is fixed to the top surface of the middle part of the bottom plate of the main box 10, a driving motor 17 is fixed to the bottom surface of the top plate of the motor support frame 16, and an output shaft of the driving motor 17 is connected with the top part of the transmission shaft 14 through a coupling;

the drive chain 1 is tensioned over two drive sprockets 12 and a drive sprocket 15.

When the plastic pipe support is used, the two movable positioning blocks 21 can be close to or far away from each other by manually rotating the two transverse adjusting bolts 25, so that the inclined wall surfaces of the two movable positioning blocks 21 correspond to the plastic pipe 100 to be placed, meanwhile, the adjusting bolts 22 are manually adjusted to realize the height adjustment of the bottom supporting plate 23, so that the bottom supporting plate can be in contact with the bottom surface of the plastic pipe 100, and the side wall of the plastic pipe 100 is in contact with the inclined wall surfaces;

and the rear end of the plastic pipe 100 is restrained by the rear restraining bar 27, which is in contact with or close to the rear restraining bar 27.

Then, by the operation of the driving motor 17, the operation of the driving chain 1 can be realized, so that the two vertical screws 11 rotate, the lifting of the lifting plate 20 is realized, the plastic pipe 100 is lifted upwards and is close to the bottom surface of the top plate of the main tank 10, the bottom of the hammer head in the pipe body of the upper part of the main tank 10 can lean against the top surface of the plastic pipe 100, and thus the test can be realized.

In this embodiment, its lifter plate 20 is fixed on the top surface of two connecting plates 13 for it can be directly with lifter plate 20 follow two connecting plates 13 in dismantle can, dismantle and change the convenience, when the part of the top of lifter plate 20 need maintenance, only need with the lifter plate 20 dismantle can, make things convenient for maintenance.

The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims (5)

1. The utility model provides a plastic pipe is with bottom elevating system of drop hammer impact tester, includes main tank body (10), and the left part and the right part of the inside of main tank body (10) all are equipped with vertical screw (11), and the upper end and the lower extreme of vertical screw (11) all are through bearing swing joint on the roof and the bottom plate of main tank body (10), and the lower part of vertical screw (11) is fixed with driving sprocket (12), its characterized in that: the middle part of the vertical screw (11) is connected with the connecting plates (13) in a threaded mode, the lifting plate (20) is fixed to the top surfaces of the two connecting plates (13), the middle part of the lifting plate (20) is provided with two movable positioning blocks (21), and the opposite wall surfaces of the two movable positioning blocks (21) are oblique wall surfaces.

2. The bottom lifting mechanism of the drop hammer impact tester for the plastic pipe as claimed in claim 1, wherein: side supporting plates (24) are fixed to the left portion and the right portion of the top face of the lifting plate (20), threaded through holes are formed in the middle of the side supporting plates (24), screw portions of the transverse adjusting bolts (25) are in threaded connection with the corresponding threaded through holes, and inner ends of the screw portions of the transverse adjusting bolts (25) extend out of the inner wall face of the corresponding side supporting plates (24) and are movably connected with the movable positioning blocks (21);

the outer end of the screw rod part of the transverse adjusting bolt (25) extends out of the corresponding side supporting plate (24) and is formed with a rotating part.

3. The bottom lifting mechanism of the drop hammer impact tester for the plastic pipe as claimed in claim 2, wherein: a plurality of sliding guide blocks (211) are fixed on the bottom surface of the movable positioning block (21), a plurality of transverse guide through grooves (26) are formed in the lifting plate (20), and the sliding guide blocks (211) are inserted in the corresponding transverse guide through grooves (26).

4. The bottom lifting mechanism of the drop hammer impact tester for the plastic pipe as claimed in claim 1, wherein: the front part and the rear part of the middle part of the lifting plate (20) are both in threaded connection with adjusting bolts (22), the top ends of the screw rod parts of the adjusting bolts (22) extend out of the top surface of the lifting plate (20) and are movably connected to the same front and rear extending bottom supporting plate (23), and the bottom supporting plate (23) is located between the two movable positioning blocks (21).

5. The bottom lifting mechanism of the drop hammer impact tester for the plastic pipe as claimed in claim 1, wherein: the top surface of the middle part of the bottom plate of the main box body (10) is movably connected with a transmission shaft (14) through a bearing, a driving chain wheel (15) is fixed on the transmission shaft (14), a motor support frame (16) is fixed on the top surface of the middle part of the bottom plate of the main box body (10), a driving motor (17) is fixed on the bottom surface of the top plate of the motor support frame (16), and an output shaft of the driving motor (17) is connected with the top part of the transmission shaft (14);

the transmission chain (1) is tensioned on two transmission chain wheels (12) and a driving chain wheel (15).

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