CN214277684U

CN214277684U - Chain strength tensile testing machine

Info

Publication number: CN214277684U
Application number: CN202023261292.4U
Authority: CN
Inventors: 李阳; 张占峰; 张国峰; 李嘉宁; 王娟; 李亚江; 李行
Original assignee: Shandong Jinhengli Machinery Manufacturing Co ltd
Current assignee: Shandong Jinhengli Machinery Manufacturing Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-24
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to a chain strength tensile test machine, including the fixed frame of square shape, set up two clamping device and the rigid coupling of fixed frame in the pneumatic cylinder of fixed frame one side, be equipped with the hydraulic pressure table on the feed liquor pipe of pneumatic cylinder, one side of pneumatic cylinder is kept away from at fixed frame to a clamping device rigid coupling, and another clamping device rigid coupling is on the telescopic shaft of pneumatic cylinder, and two clamping device symmetries set up, clamping device includes that connecting plate, rigid coupling press from both sides tight piece and rigid coupling under connecting plate one side and press from both sides the tight piece of the last clamp of tight piece up end under, press from both sides down and leave between the tight piece of the last clamp and hold the inserted slot of annular chain one end, press from both sides the tight piece down on the rigid coupling have with the tensile axis of annular chain inner circle adaptation, the up end of tensile axis passes through bolt and presss from both sides terminal surface rigid coupling under the tight piece.

Description

Chain strength tensile testing machine

Technical Field

The utility model relates to a chain technical field specifically indicates a chain strength tensile test machine.

Background

In annular chain processing field, often can carry out tensile test to the annular chain, tensile test mainly is used for examining the intensity of annular chain welding department to examine welding quality, avoid leading to follow-up finished product fracture because of welding quality, current tensile test machine adopts the mode of pressing from both sides tight chain to test usually, and operating mode when experimental is different with the in-service use operating mode, can't detect the tensile strength in the in-service use process.

Disclosure of Invention

The utility model discloses to prior art not enough, provide one kind can simulate in-service use operating mode, strong adaptability, with low costs chain strength tensile test machine.

The utility model discloses a through following technical scheme realizes, provides a chain strength tensile test machine, including the fixed frame of square shape, set up two clamping device and the rigid coupling of fixed frame in the fixed frame the pneumatic cylinder of one side, be equipped with the hydraulic pressure table on the feed liquor pipe of pneumatic cylinder, one side of pneumatic cylinder is kept away from at fixed frame to a clamping device rigid coupling, and another clamping device rigid coupling is on the telescopic shaft of pneumatic cylinder, and two clamping device symmetries set up, clamping device includes that connecting plate, rigid coupling press from both sides tight piece and rigid coupling under on the connecting plate one side press from both sides tight piece under the tight piece of clamp up end, press from both sides down and press from both sides and leave between the tight piece and hold annular chain one end male slot, press from both sides the tight piece down on the rigid coupling have with the tensile axle of annular chain inner circle adaptation, terminal surface rigid coupling under the upper end of tensile axle passes through bolt and the tight piece of last clamp.

Two tensile axles insert annular chain both ends respectively in this scheme, drive a clamping device through the pneumatic cylinder and remove, make two tensile axles stretch the annular chain, can obtain the tensile strength of annular chain through the numerical value that detects the hydropmeter, the up end of tensile axle passes through bolt and last clamp block terminal surface rigid coupling down to support tensile epaxial end, prevent tensile axle deformation damage.

Preferably, a clamping block is fixedly connected to the lower end face of the upper clamping block, a clamping groove matched with the clamping block is formed in the upper end of the stretching shaft, and the clamping groove is located on one side, far away from the connecting plate, of the stretching shaft. The fixture block card in this scheme is in the one side that the connecting plate was kept away from to tensile axle to play limiting displacement to tensile axle, prevent tensile axle to keeping away from the one side bending of connecting plate at tensile in-process.

Preferably, the distance from the upper end of the fixture block to the connecting plate is greater than the distance from the lower end of the fixture block to the connecting plate. The distance from the upper end of the clamping block to the connecting plate is larger than the distance from the lower end of the clamping block to the connecting plate, so that the clamping block is prevented from being separated from the clamping groove.

Preferably, the upper end surface of the lower clamping block is provided with an upper convex block protruding upwards, and the lower end surface of the upper clamping block is provided with a convex block groove matched with the upper convex block. The upper convex block in the scheme is inserted into the convex block groove, so that the upper clamping block is limited, and the upper clamping block is prevented from moving relative to the lower clamping block in the tensile test process.

And optimally, the two stretching shafts are symmetrically arranged, and the butt joint shape of the two stretching shafts is matched with the shape of the inner ring of the annular chain. The butt joint shape of two tensile axles in this scheme and the inner circle shape adaptation of annular chain to the thickness degree of furthest increase tensile axle.

The utility model has the advantages that: the utility model discloses a chain strength tensile test machine drives a clamping device through the pneumatic cylinder and removes, makes two tensile axles stretch to the annular chain, can obtain the tensile strength of annular chain through the numerical value that detects the hydropmeter, and the up end of tensile axle passes through bolt and last clamp block terminal surface rigid coupling down to support tensile epaxial end, prevent tensile axle deformation damage.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a front view of the clamping device of the present invention;

FIG. 3 is a schematic view of the installation of the lower clamping block and the endless chain of the present invention;

fig. 4 is a front view of the lower clamping block of the present invention;

FIG. 5 is a top view of the lower clamping block of the present invention;

fig. 6 is a front view of the upper clamping block of the present invention;

fig. 7 is a bottom view of the upper clamping block of the present invention;

shown in the figure:

1. clamping device, 2, fixed frame, 3, pneumatic cylinder, 4, hydraulic ram, 5, connecting plate, 6, lower clamp tight piece, 7, last lug, 8, tensile axle, 9, last clamp tight piece, 10, fixture block, 11, annular chain.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

As shown in fig. 1-7, the utility model discloses a chain strength tensile test machine, including the fixed frame 2 of square frame shape, set up two clamping device 1 and the pneumatic cylinder 3 of rigid coupling in fixed frame 2 one side in fixed frame 2, fixed frame 2 is the rectangle welding by four steel sheets and forms, and the frame outside at one side is installed to pneumatic cylinder 3, and inside the telescopic shaft of pneumatic cylinder 3 inserted fixed frame 2, the hydraulic pressure table was equipped with on the feed liquor pipe of pneumatic cylinder 3.

One clamping device 1 is fixedly connected to one side of the fixed frame 2 far away from the hydraulic cylinder 3, and the other clamping device 1 is fixedly connected to a telescopic shaft of the hydraulic cylinder 3.

Two 1 symmetry settings of clamping device, clamping device 1 includes that connecting plate 5, rigid coupling press from both sides tight piece 6 and rigid coupling press from both sides tight piece 9 on pressing from both sides tight piece 6 up end under in the lower of connecting plate 5 one side, and a connecting plate 5 is connected through bolt and one side of fixed frame 2, and another connecting plate 5 is connected through bolt and hydraulic ram 4, and hydraulic ram 4 welds on the telescopic shaft of pneumatic cylinder 3.

The distance between the two clamping devices 1 can be adjusted by extending and retracting the hydraulic cylinder 3.

It holds 11 one end male slots of holding ring chain to press from both sides down to press from both sides between piece 6 and last clamp piece 9, goes up and presss from both sides the piece 9 and pass through the bolt fastening and pressing from both sides the up end of piece 6 under, press from both sides 6 up end down and be the ladder face, higher one side and connecting plate 5 welding, go up and press from both sides the piece 9 and fix at higher up end, lower one side and last clamp and constitute the slot between the piece 9, the one end of ring chain 11 can stretch into to the slot in.

And the lower clamping block 6 is fixedly connected with stretching shafts 8 matched with the inner ring of the annular chain 11, the two stretching shafts 8 are symmetrically arranged, the butt joint shape of the two stretching shafts 8 is matched with the shape of the inner ring of the annular chain 11, and the butt joint shape refers to that the shape of the outer rings of the two stretching shafts 8 is the same as the shape of the inner ring of the annular chain 11 when the distance between the two stretching shafts 8 is shortest.

The cross section of the stretching shaft 8 consists of three planes and an arc surface, and the arc surface is arranged on one side close to the connecting plate 5.

The upper end face of the stretching shaft 8 is fixedly connected with the lower end face of the upper clamping block 9 through a bolt, a threaded hole is formed in the upper end face of the stretching shaft 8 in the scheme, and the bolt penetrates through the upper clamping block 9 and is fastened into the threaded hole.

The lower end face of the upper clamping block 9 is fixedly connected with a clamping block 10, the upper end of the stretching shaft 8 is provided with a clamping groove matched with the clamping block 10, and the clamping groove is located on one side, away from the connecting plate 5, of the stretching shaft 8.

The distance from the upper end of the fixture block 10 to the connecting plate 5 is greater than the distance from the lower end of the fixture block 10 to the connecting plate 5, so that the fixture block 10 is in an inverted wedge shape.

The upper end face of the lower clamping block 6 is provided with an upper convex block 7 which protrudes upwards, and the lower end face of the upper clamping block 9 is provided with a convex block groove matched with the upper convex block.

The distance from the fixture block 10 to the lower end face of the stretching shaft 8 is larger than the thickness of the annular chain, so that after the annular chain is placed on the stretching shaft 8, the lower end face of the fixture block is higher than the upper end face of the annular chain, and the upper clamping block 9 can be conveniently inserted into the lower clamping block along the front-back direction.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims

1. The utility model provides a chain strength tensile test machine which characterized in that: including fixed frame (2) of square frame shape, set up two clamping device (1) in fixed frame (2) and rigid coupling pneumatic cylinder (3) in fixed frame (2) one side, hydraulic pressure table is equipped with on the feed liquor pipe of pneumatic cylinder (3), one clamping device (1) rigid coupling is kept away from one side of pneumatic cylinder (3) at fixed frame (2), another clamping device (1) rigid coupling is on the telescopic shaft of pneumatic cylinder (3), two clamping device (1) symmetry sets up, clamping device (1) including connecting plate (5), rigid coupling clamp piece (6) and rigid coupling under in the lower clamp piece (6) up end clamp piece (9), it holds annular chain (11) one end male slot to leave between clamp piece (6) and last clamp piece (9) down, clamp piece (6) down on the rigid coupling have with the tensile axle (8) of annular chain (11) inner circle adaptation, the upper end face of the stretching shaft (8) is fixedly connected with the lower end face of the upper clamping block (9) through a bolt.

2. The chain strength tensile tester according to claim 1, wherein: the lower end face of the upper clamping block (9) is fixedly connected with a clamping block (10), the upper end of the stretching shaft (8) is provided with a clamping groove matched with the clamping block (10), and the clamping groove is located on one side, far away from the connecting plate (5), of the stretching shaft (8).

3. The chain strength tensile testing machine according to claim 2, characterized in that: the distance from the upper end of the clamping block (10) to the connecting plate (5) is greater than the distance from the lower end of the clamping block (10) to the connecting plate (5).

4. The chain strength tensile tester according to claim 1, wherein: the upper end face of the lower clamping block (6) is provided with an upward convex upper convex block (7), and the lower end face of the upper clamping block (9) is provided with a convex block groove matched with the upper convex block.

5. The chain strength tensile tester according to claim 1, wherein: the two stretching shafts (8) are symmetrically arranged, and the butt joint shape of the two stretching shafts (8) is matched with the shape of the inner ring of the annular chain (11).