CN211013872U

CN211013872U - Steel band fatigue test equipment

Info

Publication number: CN211013872U
Application number: CN201921899866.5U
Authority: CN
Inventors: 张德华
Original assignee: Dongguan Changsheng Knife Saw Co ltd
Current assignee: Dongguan Changsheng Knife Saw Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-07-14
Anticipated expiration: 2029-11-05

Abstract

The utility model discloses a steel band fatigue test equipment belongs to band saw fatigue test field, including bottom plate, lead screw slip table, steel band tip hold-down mechanism and steel band accredited testing organization, lead screw slip table and steel band tip hold-down mechanism interval set up on the bottom plate, steel band accredited testing organization installs on the slip table of lead screw slip table, steel band tip hold-down mechanism includes bottom block, briquetting, lifting unit and two spacing subassemblies, the bottom block is installed on the bottom plate, lifting unit is located the side of bottom block, the briquetting is installed on lifting unit, and the briquetting is located the bottom block directly over, and two spacing subassembly symmetries set up on the bottom block. The utility model discloses can carry out fatigue crack resistance test to different width steel bands.

Description

Steel band fatigue test equipment

Technical Field

The utility model belongs to the technical field of the band saw fatigue test and specifically relates to a steel band fatigue test equipment is related to.

Background

Band saws are some types of saws that may be used for woodworking and metal work, but can be utilized for a wide variety of other materials. It gets its name because its blade consists of a metal band and teeth aligned with it. The strip is vertically stacked on two large wheels to be spaced between them. Band saws are useful they may be used with cut irregular shapes. The radius that may be cut off in a particular saw curve is determined by the thickness of the blade. With the development of the woodworking band saw industry, the requirement of the market on the fatigue resistance of a back material of the band saw is higher and higher, and the fatigue crack resistance of the band saw cannot be tested at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steel band fatigue test equipment is in order to solve the problem that proposes in the above-mentioned background art.

The utility model provides a steel band fatigue test equipment, including bottom plate, lead screw slip table, steel band tip hold-down mechanism and steel band accredited testing organization, lead screw slip table and steel band tip hold-down mechanism interval set up on the bottom plate, steel band accredited testing organization installs on the slip table of lead screw slip table, steel band tip hold-down mechanism includes bottom block, briquetting, lifting unit and two spacing subassemblies, the bottom block is installed on the bottom plate, lifting unit is located the side of bottom block, the briquetting is installed on lifting unit, and the briquetting is located the bottom block directly over, and two spacing subassembly symmetries set up on the bottom block.

Further, the lifting component includes elevator motor, first transfer line, second transfer line, first sprocket, second sprocket, third sprocket, fourth sprocket and is the support of L type, be equipped with on the bottom block with first transfer line bottom normal running fit's first rotary trough and with second transfer line bottom normal running fit's second rotary trough, and first rotary trough is the interval setting with the second rotary trough, be equipped with first screw on the outer wall of first transfer line, be equipped with the second screw on the outer wall of second transfer line, be equipped with on the briquetting with first screw of screw-thread fit and with second screw of screw-thread fit, first sprocket and second sprocket are installed on first transfer line along vertical direction interval, the third sprocket is installed at the top of second transfer line, and first sprocket passes through chain drive with the third sprocket and is connected, the support is located the side of bottom block, elevator motor is vertical below of installing at the top of support, the fourth sprocket is installed on elevator motor's output, the second sprocket passes through the chain drive with the fourth sprocket and is connected.

Further, spacing subassembly includes that a plurality of is the limiting plate that equidistant setting, be equipped with a plurality of and a plurality of limiting plate one-to-one sliding fit's spout on the bottom block, be equipped with the linking groove of a plurality of and a plurality of limiting plate one-to-one on the briquetting, all be equipped with flexible groove on the lateral wall of every limiting plate, all be equipped with the telescopic link in every flexible inslot, all be equipped with the stopper on every telescopic link, be equipped with the shifting chute that a plurality of and a plurality of spout one-to-one communicate and supply the telescopic link to remove on the outer wall of bottom block, be equipped with a plurality of and a plurality of shifting chute one-to-one spacing bank of cells on the outer wall of bottom block, every spacing bank of cells all include two symmetries set up.

Further, steel band accredited testing organization includes strain gauge sensor, installation piece, presss from both sides tight piece, two L type pieces and a plurality of air cylinder down, the installation piece is installed on the slip table of lead screw slip table, be equipped with the mounting groove that is used for installing strain gauge sensor on the installation piece, two L type piece intervals set up the side at the installation piece, are equipped with between two L type pieces and are used for connecting horizontal plate between them, and a plurality of air cylinder down is equidistant setting on the horizontal plate, and every air cylinder down all is vertical setting, press from both sides tight piece and be horizontal connection on all air cylinder's output.

Compared with the prior art, the beneficial effects of the utility model reside in that:

one of the two, the utility model discloses a steel band tip hold-down mechanism and steel band accredited testing organization are with the steel band by the clamping with the horizontality, later drive the steel band through lead screw slip table and stretch, utilize strain sensor to measure the data of the fatigue crack resistance nature of steel band, its simple structure, convenient operation.

Two, pull out the stopper, the stopper can drive the telescopic link and remove in flexible inslot, drives the limiting plate through the stopper afterwards and rises in the spout that corresponds, pulls out two limiting plates according to this mode, and interval between two limiting plates decides to carry on spacingly to the steel band of different width, has improved application scope.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic perspective view of the present invention;

fig. 3 is a partial structural diagram of the first embodiment of the present invention;

fig. 4 is a schematic view of a partial structure of the present invention;

FIG. 5 is a side view of a limiting plate;

the reference numerals of the device are that a bottom plate 1, a screw rod sliding table 2, a steel strip end pressing mechanism 3, a bottom block 31, a sliding groove 311, a moving groove 312, a limiting groove 313, a pressing block 32, a connecting groove 321, a lifting assembly 33, a lifting motor 331, a first transmission rod 332, a second transmission rod 333, a first chain wheel 334, a second chain wheel 335, a third chain wheel 336, a fourth chain wheel 337, a bracket 338, a limiting assembly 34, a limiting plate 341, an expansion rod 342, a limiting block 343, a steel strip testing mechanism 4, a strain sensor 41, an installation block 42, a clamping block 43, an L type block 44, a downward pressing cylinder 45 and a horizontal plate 46.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following is shown in fig. 1 to 5 in combination, an embodiment of the present invention provides a steel strip fatigue testing apparatus, including a bottom plate 1, a screw rod sliding table 2, a steel strip end pressing mechanism 3 and a steel strip testing mechanism 4, the screw rod sliding table 2 and the steel strip end pressing mechanism 3 are arranged on the bottom plate 1 at intervals, the steel strip testing mechanism 4 is installed on the sliding table of the screw rod sliding table 2, the steel strip end pressing mechanism 3 includes a bottom block 31, a pressing block 32, a lifting assembly 33 and two limiting assemblies 34, the bottom block 31 is installed on the bottom plate 1, the lifting assembly 33 is located beside the bottom block 31, the pressing block 32 is installed on the lifting assembly 33, the pressing block 32 is located right above the bottom block 31, and the two limiting assemblies 34 are symmetrically arranged on the bottom block 31; place the one end of the steel band of band saw on bottom block 31, descend briquetting 32 through lifting unit 33 and compress tightly the tip of steel band, can carry on spacingly to the steel band of different width through two spacing subassemblies 34, avoid the steel band to take place the incline, later fix the other end of steel band on steel band accredited testing organization 4, lead screw slip table 2 drive steel band accredited testing organization 4 removes the certain distance afterwards, steel band accredited testing organization 4 drives the steel band and stretches, and steel band accredited testing organization 4 can carry out fatigue crack resistance to the steel band when tensile and measure.

Specifically, the lifting assembly 33 includes a lifting motor 331, a first transmission rod 332, a second transmission rod 333, a first chain wheel 334, a second chain wheel 335, a third chain wheel 336, a fourth chain wheel 337, and a bracket 338 in the shape of L, the bottom block 31 is provided with a first rotating slot rotationally matched with the bottom of the first transmission rod 332 and a second rotating slot rotationally matched with the bottom of the second transmission rod 333, the first rotating slot and the second rotating slot are arranged at intervals, the outer wall of the first transmission rod 332 is provided with a first thread, the outer wall of the second transmission rod 333 is provided with a second thread, the press block 32 is provided with a first screw hole matched with the first thread and a second screw hole matched with the second thread, the first chain wheel 334 and the second chain wheel 335 are arranged on the first transmission rod 332 at intervals in the vertical direction, the third chain wheel 336 is arranged at the top of the second transmission rod 333, the first chain wheel 334 and the third chain wheel 336 are connected through a chain transmission, the bracket 338 is located beside the bottom block 31, the lifting motor 331 is vertically arranged below the bracket 338, the top of the bracket 338, the fourth chain wheel 337 is arranged below the first chain wheel 337, the press block 337, the fourth chain wheel 337, the press block 32 is capable of driving the chain wheel 337 to rotate, the first chain wheel 337, the press block 32 to drive the first chain wheel 32 to rotate, the first chain wheel 32 to drive the first chain wheel 32 to rotate, the lifting transmission rod to drive the first chain wheel 32, the press block to drive the lifting chain wheel 32, the lifting chain wheel 32 to rotate, the lifting chain wheel 32 to rotate, and the lifting chain wheel 32 to drive the lifting chain wheel 32 to rotate.

Specifically, the limiting component 34 includes a plurality of limiting plates 341 arranged at equal intervals, the bottom block 31 is provided with a plurality of sliding grooves 311 in one-to-one sliding fit with the plurality of limiting plates 341, the pressing block 32 is provided with a plurality of linking grooves 321 in one-to-one correspondence with the plurality of limiting plates 341, the side wall of each limiting plate 341 is provided with a telescopic groove, each telescopic groove is internally provided with a telescopic rod 342, each telescopic rod 342 is provided with a limiting block 343, the outer wall of the bottom block 31 is provided with a plurality of moving grooves 312 which are communicated with the plurality of sliding grooves 311 one-to-one and allow the telescopic rods 342 to move, the outer wall of the bottom block 31 is provided with a plurality of limiting groove groups in one-to-one correspondence with the plurality of moving grooves 312, and each limiting groove group includes two limiting grooves 313 which are symmetrically arranged and are matched with; the limiting block 343 is pulled out, the limiting block 343 drives the telescopic rod 342 to move in the telescopic groove, then the limiting block 343 drives the limiting plate 341 to ascend in the corresponding sliding groove 311, the two limiting plates 341 are pulled out according to the mode, and the spacing between the two limiting plates 341 determines to limit the steel belts with different widths.

Specifically, the steel strip testing mechanism 4 comprises a strain sensor 41, an installation block 42, a clamping block 43, two L type blocks 44 and a plurality of pressing cylinders 45, the installation block 42 is installed on a sliding table of the screw rod sliding table 2, an installation groove for installing the strain sensor 41 is formed in the installation block 42, the two L type blocks 44 are arranged on the side of the installation block 42 at intervals, a horizontal plate 46 for connecting the two L type blocks 44 is arranged between the two L type blocks 44, the plurality of pressing cylinders 45 are arranged on the horizontal plate 46 at equal intervals, each pressing cylinder 45 is arranged vertically, the clamping block 43 is connected to the output end of each pressing cylinder 45 horizontally, the strain sensor 41 is a sensor based on the strain generated by the stress deformation of an object, in the prior art, all the pressing cylinders 45 drive the clamping block 43 to move downwards, the clamping block 43 clamps the end portion of the steel strip between the clamping block 43 and the installation block 42, then the screw rod sliding table 2 tensions the working steel strip, and the strain sensor 41 tests the fatigue crack resistance of the steel strip.

The utility model discloses a theory of operation: when the utility model is used, the two limit blocks 343 corresponding to the two limits according to the width of the steel strip are pulled out, the limit blocks 343 drive the telescopic rod 342 to move in the telescopic slot, the limit plates 341 are driven by the limit blocks 343 to ascend in the corresponding sliding slots 311, the two limit plates 341 can limit the steel strip, then one end of the steel strip is placed on the press block 32, the lifting motor 331 can drive the fourth chain wheel 337 to rotate, the fourth chain wheel 337 drives the second chain wheel 335 through a chain, the first transmission rod 332 and the first chain wheel 334 synchronously rotate, the first chain wheel 334 drives the third chain wheel 336 and the second transmission rod 333 to synchronously rotate through a chain, the first transmission rod 332 and the second transmission rod 333 are matched to enable the press block 32 to move downwards in a horizontal state, the press block 32 compresses the end part of the steel strip on the press block 32, then the other end sensed is placed on the installation block 42, at the moment, the strain sensors 41 are just abutted to the position under the steel strip, then all the downward-pressing air cylinders 45 work to drive the clamping blocks 43 to move downwards, the clamping blocks 43 clamp the end portions of the steel strip between the clamping blocks 43 and the mounting blocks 42, then the screw rod sliding table 2 works to strain the steel strip, and the strain sensors 41 test the fatigue crack resistance of the steel strip.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A steel band fatigue test equipment which characterized in that: including bottom plate (1), lead screw slip table (2), steel band tip hold-down mechanism (3) and steel band accredited testing organization (4), lead screw slip table (2) set up on bottom plate (1) with steel band tip hold-down mechanism (3) interval, install on the slip table of lead screw slip table (2) steel band accredited testing organization (4), steel band tip hold-down mechanism (3) are including bottom block (31), briquetting (32), lifting unit (33) and two spacing subassemblies (34), install on bottom plate (1) bottom block (31), lifting unit (33) are located the side of bottom block (31), install on lifting unit (33) briquetting (32), and briquetting (32) are located bottom block (31) directly over, two spacing subassemblies (34) symmetry set up on bottom block (31).

2. The steel strip fatigue testing device according to claim 1, wherein the lifting assembly (33) comprises a lifting motor (331), a first transmission rod (332), a second transmission rod (333), a first chain wheel (334), a second chain wheel (335), a third chain wheel (336), a fourth chain wheel (337) and a support (338) in the form of L, a first rotating groove and a second rotating groove are formed in the bottom block (31) and are in rotating fit with the bottom of the first transmission rod (332), the first rotating groove and the second rotating groove are arranged at intervals, first threads are formed in the outer wall of the first transmission rod (332), second threads are formed in the outer wall of the second transmission rod (333), a first screw hole matched with the first threads and a second screw hole matched with the second threads are formed in the pressing block (32), the first chain wheel (334) and the second chain wheel (335) are arranged on the first transmission rod (332) at intervals in the vertical direction, the third chain wheel (336) is arranged on the second transmission rod (338), the third chain wheel (336) is arranged on the support (338) and is connected with the top of the fourth chain wheel (337), and is connected with the lifting motor (331) through the top of the lifting motor (335), and the third chain wheel (335).

3. A steel strip fatigue testing apparatus according to claim 2, wherein: the limiting component (34) comprises a plurality of limiting plates (341) arranged at equal intervals, a plurality of sliding grooves (311) which are in one-to-one sliding fit with a plurality of limiting plates (341) are arranged on the bottom block (31), the pressing block (32) is provided with a plurality of connecting grooves (321) which are in one-to-one correspondence with the plurality of limiting plates (341), the side wall of each limiting plate (341) is provided with a telescopic groove, each telescopic groove is internally provided with a telescopic rod (342), each telescopic rod (342) is provided with a limiting block (343), a plurality of moving grooves (312) which are communicated with the plurality of sliding grooves (311) one by one and are used for moving the telescopic rod (342) are arranged on the outer wall of the bottom block (31), the outer wall of the bottom block (31) is provided with a plurality of limiting groove groups which are in one-to-one correspondence with the plurality of moving grooves (312), and each limiting groove group comprises two limiting grooves (313) which are symmetrically arranged and matched with the limiting blocks (343).

4. The steel strip fatigue testing equipment of claim 1, wherein the steel strip testing mechanism (4) comprises a strain gauge sensor (41), an installation block (42), a clamping block (43), two L type blocks (44) and a plurality of pressing cylinders (45), the installation block (42) is installed on the sliding table of the screw rod sliding table (2), an installation groove for installing the strain gauge sensor (41) is formed in the installation block (42), the two L type blocks (44) are arranged at the side of the installation block (42) at intervals, a horizontal plate (46) for connecting the two blocks is arranged between the two L type blocks (44), the plurality of pressing cylinders (45) are arranged on the horizontal plate (46) at equal intervals, each pressing cylinder (45) is vertically arranged, and the clamping block (43) is horizontally connected to the output ends of all the pressing cylinders (45).