A reinforcing steel bar raw material tensile strength detection device

Abstract

The present application relates to the technical field of tensile testing, and particularly relates to a reinforcing steel bar raw material tensile strength detection equipment, which comprises a tensile testing machine, a sliding seat is fixed to the output end of the tensile testing machine, and a support is welded to the outer wall of the tensile testing machine, and the equipment further comprises a clamping mechanism for automatically clamping the reinforcing steel bar and further tightening along with the tensile process, wherein the clamping mechanism is arranged on the tensile testing machine. In the present application, the clamping mechanism is arranged, so that the reinforcing steel bar drives the supporting frame and the screw rod to move downward synchronously to compress the spring, the supporting frame drives the clamping blocks to move downward along the inclined grooves, the two clamping blocks are close to each other, so that the clamping blocks can clamp and fix the reinforcing steel bar, the effect of automatically clamping the clamping blocks by the self-gravity of the reinforcing steel bar is realized, the working efficiency is greatly improved, and the device can adapt to reinforcing steel bars with different diameters, and the practicality of the device is greatly improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tensile testing, and particularly relates to a reinforcing steel bar raw material tensile strength testing device. BACKGROUND

[0002] Reinforcing steel bar refers to steel material for reinforced concrete and prestressed reinforced concrete, and is an important component in building structure materials. The performance of reinforcing steel bar directly affects the applicability and safety of structures. Therefore, reinforcing steel bar needs to be subjected to necessary performance testing before being used in engineering construction. The tensile strength of reinforcing steel bar is an important index of mechanical performance of reinforcing steel bar, and is the value obtained by dividing the maximum tensile force that reinforcing steel bar can bear before being broken by the cross-sectional area of reinforcing steel bar.

[0003] However, the existing tensile testing device has a complicated clamping process and low working efficiency, and the clamp cannot be further tightened along with the tensile process. When the reinforcing steel bar is stretched, the cross section of the reinforcing steel bar is reduced, so that the initial clamping distance of the clamp cannot be adapted, and loosening is prone to occur. SUMMARY

[0004] The application aims to solve the problems in the background art and provides a reinforcing steel bar raw material tensile strength testing device.

[0005] In order to achieve the above-mentioned purpose, the application adopts the following technical scheme:

[0006] A reinforcing steel bar raw material tensile strength testing device, comprising a tensile testing machine, the output end of the tensile testing machine is fixed with a sliding seat, and a support is welded on the outer wall of the tensile testing machine, further comprising:

[0007] A clamping mechanism is arranged on the tensile testing machine and is used for automatically clamping the reinforcing steel bar and further tightening along with the tensile process. The clamping mechanism comprises a receiving frame, the outer walls of the support and the sliding seat are slidably inserted with the receiving frame, a position-avoiding groove matched with the reinforcing steel bar is formed in the outer wall of the sliding seat, a pair of symmetrically distributed clamping blocks are slidably inserted in the outer walls on both sides of the position-avoiding groove of each receiving frame, a slide column is welded on the outer wall of each clamping block, a pair of inclined grooves are formed in the outer walls on both sides of the position-avoiding groove of the support and the sliding seat, the bottom ends of each pair of inclined grooves gradually approach each other, the slide column is slidably inserted in the inclined groove, a threaded sleeve is welded on the bottom outer wall of each receiving frame, a screw rod one is movably inserted in the inner wall of each threaded sleeve through thread cooperation, a gear one is welded on the bottom outer wall of each screw rod one, a gear rack one is welded on the outer wall of the sliding seat, a gear rack two is welded on the outer wall of the support, the gear rack one and the gear rack two are mutually position-avoiding, the gear rack one and the gear one on the support are mutually meshed, and the gear rack two and the gear one on the sliding seat are mutually meshed.

[0008] And the feeding mechanism is arranged on the tensile testing machine.

[0009] In the steel bar raw material tensile strength detection equipment, the bottom outer wall of the support and the sliding base is provided with a mounting groove, the inner wall of each mounting groove is welded with a limiting rod, the outer wall of each screw rod one is movably sleeved with a limiting rod, and the outer wall of each gear one is welded with a spring one between the inner wall of the mounting groove.

[0010] In the steel bar raw material tensile strength detection equipment, the top end outer wall of each screw rod one is rotatably inserted with a rubber block.

[0011] In the steel bar raw material tensile strength detection equipment, the outer wall of the support is rotatably inserted with a screw rod two, the bottom outer wall of the screw rod two is welded with a gear two, the bottom outer wall of the sliding base is slidably inserted with a ratchet strip, the ratchet strip is unidirectionally meshed with the gear two, and the outer wall of the support is provided with a storage groove.

[0012] In the steel bar raw material tensile strength detection equipment, the storage groove is slidably inserted with a lifting frame, the lifting frame is threadedly sleeved on the outer wall of the screw rod two, the outer wall of the ratchet strip and the outer wall of the sliding base are welded with a spring two, and the outer wall of the lifting frame is welded with an extension column extending out of the storage groove.

[0013] In the steel bar raw material tensile strength detection equipment, the top outer wall of the storage groove is welded with a guide inclined plate, and the end portion of the guide inclined plate is downwardly welded with a transfer chamber.

[0014] In the steel bar raw material tensile strength detection equipment, the bottom of the transfer chamber is provided with a discharging port, a rotating drum is rotatably inserted in the transfer chamber through a shaft, and a plurality of clamping grooves compatible with the steel bar are equidistantly distributed on the outer wall of the rotating drum.

[0015] In the steel bar raw material tensile strength detection equipment, the rotating shaft of the rotating drum is welded with a winch at one end of the outer wall of the support, a coil spring is welded between the outer wall of the rotating shaft of the rotating drum and the outer wall of the support, the outer wall of the winch is wound with a rope, a wire wheel is rotatably inserted in the outer wall of the support, and the free end of the rope is fixed on the extension column after passing above the wire wheel.

[0016] Compared with the prior art, the steel bar raw material tensile strength detection equipment has the beneficial effects that:

[0017] 1、Through the clamping mechanism arranged, the reinforcing bar is driven by its own gravity to move down the supporting frame and the screw rod one to compress the spring one, the supporting frame drives the clamping block to move down along the inclined groove, so that the two clamping blocks are close to each other, so that the clamping block can clamp and fix the reinforcing bar, realizes the effect that the clamping block is automatically clamped by the gravity of the reinforcing bar, greatly improves the work efficiency, and can adapt to reinforcing bars of different diameters, greatly improves the practicability of the device;

[0018] 2、Through the setting of the feeding mechanism, the lifting frame will move up and release the rope every time after detection is completed, so that the coil spring drives the rotating drum to rotate, when the reinforcing bar enters the clamping groove, it can be discharged to the discharge port along with the clamping groove, so as to realize the effect of automatic feeding, the reinforcing bar falls into the avoiding groove from the discharge port, and then is intercepted between the two clamping blocks by the supporting frame, realizes the effect of automatic feeding, greatly improves the detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure of the present application Figure One .

[0020] Figure 2 It is the overall structure of the present application Figure Two .

[0021] Figure 3 It is the overall structure of the present application

[0022] Figure 4 It is the overall structure of the present application

[0023] Figure 5 It is the overall structure of the present application

[0024] Figure 6 It is the overall structure of the present application

[0025] Figure 7 It is the overall structure of the present application

[0026] Figure 8 It is the overall structure of the present application

[0027] In the figure: 1, tensile testing machine; 11, support; 111, storage tank; 112, material guide inclined plate; 113, transfer chamber; 114, discharge port; 12, rack two; 13, wire wheel; 2, slide; 21, position avoidance groove; 22, chute; 23, limit rod; 24, rack one; 25, mounting groove; 3, receiving frame; 31, clamping block; 32, slide column; 33, threaded sleeve; 4, screw one; 41, gear one; 42, spring one; 43, rubber block; 5, rotating drum; 51, clamping groove; 52, coil spring; 53, capstan; 54, rope; 6, screw two; 61, gear two; 62, lifting frame; 621, extension column; 7, ratchet bar; 71, spring two; 9, steel bar. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application.

[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0030] Please refer to Figures 1-8 The present application provides a technical solution: a steel bar raw material tensile strength detection equipment, comprising a tensile testing machine 1, the output end of the tensile testing machine 1 is fixed with a slide 2, a support 11 is welded on the outer wall of the tensile testing machine 1, further comprising:

[0031] The clamping mechanism is used for automatic clamping of the reinforcing bars 9 and further tightening along the stretching process. The clamping mechanism is arranged on the stretching testing machine 1 and comprises the receiving frames 3, the supports 11 and the outer wall of the sliding seat 2. The receiving frames 3 are slidingly inserted on the outer wall of the sliding seat 2 and the supports 11. The outer wall of the sliding seat 2 is provided with the position-avoiding grooves 21 matched with the reinforcing bars 9. Each receiving frame 3 is slidingly inserted with a pair of symmetrically distributed clamping blocks 31 on the outer wall on both sides of the position-avoiding grooves 21. The outer wall of each clamping block 31 is welded with the sliding columns 32. The outer wall of the sliding seat 2 and the supports 11 on both sides of the position-avoiding grooves 21 are provided with a pair of inclined grooves 22. The bottom end of each pair of inclined grooves 22 gradually approaches. The sliding columns 32 are slidingly inserted in the inclined grooves 22. The bottom outer wall of each receiving frame 3 is welded with the threaded sleeves 33. The inner wall of each threaded sleeve 33 is threadedly movably inserted with the screw rods 4. The bottom outer wall of each screw rod 4 is welded with the gear wheels 41. The outer wall of the sliding seat 2 is welded with the gear racks 24. The outer wall of the supports 11 is welded with the gear racks 12. The gear racks 24 and the gear racks 12 are mutually position-avoiding. The gear racks 24 and the gear wheels 41 on the supports 11 are mutually engaged. The gear racks 12 and the gear wheels 41 on the sliding seat 2 are mutually engaged. The bottom outer wall of the supports 11 and the sliding seat 2 is provided with the mounting grooves 25. The inner wall of each mounting groove 25 is welded with the limiting rods 23. The screw rods 4 are movably sleeved on the outer wall of the limiting rods 23. The outer wall of each gear wheel 41 and the inner wall of the mounting groove 25 are welded with the springs 42. The top end outer wall of each screw rod 4 is rotatably inserted with the rubber blocks 43.

[0032] The feeding mechanism is arranged on the stretching testing machine 1.

[0033] Further elaboration is made on the above: during work, the output end of the control tensile testing machine 1 drives the sliding seat 2 to approach the support 11, the sliding seat 2 drives the ratchet bar 7 to approach the gear two 61, so as to start the feeding mechanism to feed, the reinforcing bar 9 falls into the avoiding groove 21 from the discharging port 114, and then is intercepted between the two clamping blocks 31 by the receiving frame 3, the reinforcing bar 9 is compressed by the receiving frame 3 and the screw one 4 under the action of its own gravity, the receiving frame 3 drives the clamping block 31 to move downward along the inclined chute 22, so that the two clamping blocks 31 approach each other, so that the clamping block 31 can clamp and fix the reinforcing bar 9, realizing the effect that the clamping block 31 is automatically clamped by the gravity of the reinforcing bar 9, greatly improving the work efficiency, and being suitable for reinforcing bars 9 of different diameters, greatly improving the practicability of the device, after initial clamping, the output end of the control tensile testing machine 1 drives the sliding seat 2 to gradually move away from the support 11 to perform the tensile test until the reinforcing bar 9 is broken, during the process that the sliding seat 2 and the support 11 move away from each other, the rack one 24 and the rack two 12 drive the corresponding gear one 41 to rotate respectively, so that the gear one 41 drives the screw one 4 to rotate, under the thread cooperation, the screw one 4 gradually screws into the threaded sleeve 33, the rubber block 43 at the top of the screw one 4 abuts against the reinforcing bar 9, increasing the friction force of the reinforcing bar 9, further adjusting the clamping effect, at the same time, when the gear one 41 rises to abut against the top inner wall of the mounting groove 25 with the screw one 4, the screw one 4 cannot further move upward, so that when the screw one 4 continues to rotate, it will drive the threaded sleeve 33 to pull the receiving frame 3 to further move downward, so that the receiving frame 3 drives the clamping block 31 to further approach, realizing the effect of further improving the clamping force during the stretching process, avoiding the situation that the reinforcing bar 9 is stretched and deformed to fall off.

[0034] Specifically, the feeding mechanism comprises a screw rod two 6, the outer wall of the support 11 is rotatably connected with the screw rod two 6, the bottom outer wall of the screw rod two 6 is welded with a gear two 61, the bottom outer wall of the sliding seat 2 is slidably connected with a ratchet bar 7, the ratchet bar 7 is in one-way engagement with the gear two 61, the outer wall of the support 11 is provided with a storage groove 111, the storage groove 111 is slidably connected with a lifting frame 62, the lifting frame 62 is sleeved on the outer wall of the screw rod two 6 through thread cooperation, the outer wall between the ratchet bar 7 and the sliding seat 2 is welded with a spring two 71, the outer wall of the lifting frame 62 is welded with an extension column 621 extending out of the storage groove 111, the top outer wall of the storage groove 111 is welded with a guide inclined plate 112, the end of the guide inclined plate 112 is welded with a transfer chamber 113 obliquely downward, the bottom of the transfer chamber 113 is provided with a discharge port 114, the transfer chamber 113 is rotatably connected with a rotating drum 5 through a shaft, the outer wall of the rotating drum 5 is provided with a plurality of equidistant circumferential distribution clamping grooves 51 matched with the reinforcing bars 9, the outer wall of the rotating shaft of the rotating drum 5 is welded with a winch 53 on one end of the outer wall of the support 11, the outer wall between the rotating shaft of the rotating drum 5 and the outer wall of the support 11 is welded with a coil spring 52, the outer wall of the winch 53 is wound with a rope 54, the outer wall of the support 11 is rotatably connected with a wire wheel 13, the free end of the rope 54 is fixed on the extension column 621 after passing above the wire wheel 13.

[0035] Before detection, the reinforcing bars 9 to be detected are stacked on the lifting frame 62 in the storage groove 111.

[0036] In the initial state, the lifting frame 62 is located at the bottom of the storage groove 111, and the lifting frame 62 drives the rotating drum 5 to rotate to compress the coil spring 52 through the rope 54.

[0037] Further elaboration on the above content: after the tensile test is completed, the output end of the tensile testing machine 1 is controlled to drive the sliding seat 2 to move close to the support 11, the gear one 41 is reversely rotated by the gear two 12 and the gear one 41 driven by the rack one 24 and the rack two 12 respectively, so that the screw rod one 4 is reset, at this time, because the reinforcing bar 9 is broken, its weight cannot overcome the elastic force of the spring one 42, so that the supporting frame 3 moves up, and then the two clamping blocks 31 move away from each other along the inclined chute 22, so that the broken reinforcing bar 9 falls off, realizing the effect of automatic discharging, at the same time, in the above process, the ratchet bar 7 is in one-way engagement with the gear two 61 driven by the sliding seat 2, so that the gear two 61 drives the screw rod two 6 to rotate, under the thread cooperation, the lifting frame 62 drives the reinforcing bars 9 in the storage groove 111 to move up, so that the uppermost reinforcing bar 9 can slide to the transfer chamber 113 through the guide inclined plate 112, the lifting frame 62 moves up to release the rope 54, so that the coil spring 52 drives the rotating drum 5 to rotate, when the reinforcing bar 9 enters the clamping groove 51, it can be discharged to the discharge port 114 along with the clamping groove 51, thereby realizing the effect of automatic feeding, in addition, when the new reinforcing bar 9 falls from the discharge port 114, the tensile testing machine 1 is stopped, and after the clamping mechanism completes the preliminary clamping, the tensile testing machine 1 is started again for testing.

[0038] The working principle and use process of the present application: before detection, the steel bars 9 to be detected are stacked on the lifting frame 62 in the storage tank 111, during work, the output end of the tensile testing machine 1 drives the sliding seat 2 to approach the support 11, the sliding seat 2 drives the ratchet bar 7 to approach the gear two 61, under the action of the feeding mechanism, the lifting frame 62 moves up to release the rope 54, so that the coil spring 52 drives the rotating drum 5 to rotate, when the steel bar 9 enters the clamping groove 51, it can be discharged to the discharge port 114 along with the clamping groove 51, thereby realizing the effect of automatic feeding, the steel bar 9 falls into the avoiding groove 21 from the discharge port 114, and then is intercepted between the two clamping blocks 31 by the receiving frame 3, under the action of the clamping mechanism, the steel bar 9 drives the receiving frame 3 and the screw one 4 to move down synchronously to compress the spring one 42 by its own gravity, the receiving frame 3 drives the clamping blocks 31 to move down along the inclined groove 22, so that the two clamping blocks 31 approach each other, thereby the clamping blocks 31 can clamp and fix the steel bar 9, realizing the effect of automatic clamping of the clamping blocks 31 driven by the gravity of the steel bar 9, greatly improving the work efficiency, and being suitable for steel bars 9 of different diameters, greatly improving the practicability of the device, after initial clamping, the output end of the tensile testing machine 1 drives the sliding seat 2 to gradually move away from the support 11, and the tensile test is carried out until the steel bar 9 is broken, in the process of the sliding seat 2 and the support 11 moving away from each other, under the action of the clamping mechanism, the screw one 4 gradually screws into the threaded sleeve 33, the rubber block 43 at the top of the screw one 4 abuts against the steel bar 9, increasing the friction force received by the steel bar 9, further increasing the clamping effect, at the same time, when the gear one 41 rises to abut against the top inner wall of the mounting groove 25 along with the screw one 4, the screw one 4 cannot further move up, so that the screw one 4 continues to rotate, which drives the threaded sleeve 33 to pull the receiving frame 3 to further move down, thereby the receiving frame 3 drives the clamping blocks 31 to further approach, realizing the effect of further improving the clamping force during stretching, avoiding the situation that the steel bar 9 is stretched and deformed to cause falling off, after detection is completed, the output end of the tensile testing machine 1 drives the sliding seat 2 to approach the support 11 again, the rack one 24 and the rack two 12 drive the corresponding gear one 41 to rotate reversely, so that the screw one 4 resets, at this time, since the steel bar 9 is broken, its weight cannot overcome the elastic force of the spring one 42, so that the receiving frame 3 moves up, and then the two clamping blocks 31 move away from each other along the inclined groove 22, so that the broken steel bar 9 falls off, realizing the effect of automatic discharging, from the above process, the steel bars 9 in the storage tank 111 can be detected in batches.

[0039] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A reinforcing steel bar raw material tensile strength detection equipment, comprising a tensile testing machine (1), the output end of the tensile testing machine (1) is fixed with a sliding seat (2), a support (11) is welded on the outer wall of the tensile testing machine (1), characterized in that, Also include: The clamping mechanism is used for automatic clamping of the reinforcing bar (9), and further tightening along with the stretching process, the clamping mechanism is arranged on the stretching testing machine (1), the support (11) and the outer wall of the slide (2) are all slidingly inserted with the support (3), the outer wall of the slide (2) is provided with a position avoiding groove (21) matched with the reinforcing bar (9), each support (3) is slidingly inserted with a pair of symmetrically distributed clamping blocks (31) on the outer wall of the position avoiding groove (21), the outer wall of each clamping block (31) is welded with a slide column (32), the outer wall of the support (11) and the slide (2) located on both sides of the position avoiding groove (21) is provided with a pair of inclined grooves (22), the bottom end of each pair of inclined grooves (22) gradually approaches, the slide column (32) is slidingly inserted in the inclined groove (22), the outer wall of the bottom of each support (3) is welded with a threaded sleeve (33), the inner wall of each threaded sleeve (33) is movably inserted with a screw rod (4) through threaded cooperation, the bottom outer wall of each screw rod (4) is welded with a gear (41), the outer wall of the slide (2) is welded with a rack (24), the outer wall of the support (11) is welded with a rack (12), the rack (24) and the rack (12) are mutually avoiding, the rack (24) and the gear (41) on the support (11) are mutually engaged, the rack (12) and the gear (41) on the slide (2) are mutually engaged; And the feeding mechanism is used for automatic feeding, and the feeding mechanism is arranged on the stretching testing machine (1).

2. The reinforcing bar raw material tensile strength detection device according to claim 1, characterized in that: The outer wall of the bottom of each support (11) and slide (2) is provided with a mounting groove (25), the inner wall of each mounting groove (25) is welded with a limiting rod (23), the outer wall of the limiting rod (23) is movably sleeved with the screw rod (4), and the outer wall of each gear (41) and the inner wall of the mounting groove (25) are welded with a spring (42).

3. The reinforcing bar raw material tensile strength detection device according to claim 1, characterized in that: The outer wall of the top end of each screw rod (4) is rotatably inserted with a rubber block (43).

4. The reinforcing bar raw material tensile strength detection device according to claim 1, characterized in that: The feeding mechanism comprises a screw rod (6), the outer wall of the support (11) is rotatably inserted with a screw rod (6), the bottom outer wall of the screw rod (6) is welded with a gear (61), the bottom outer wall of the slide (2) is slidingly inserted with a ratchet rack (7), the ratchet rack (7) and the gear (61) are one-way engaged, and the outer wall of the support (11) is provided with a storage groove (111).

5. The reinforcing bar raw material tensile strength detection device according to claim 4, characterized by: The storage groove (111) is slidingly inserted with a lifting frame (62), the lifting frame (62) is movably sleeved on the outer wall of the screw rod (6) through threaded cooperation, the outer wall of the ratchet rack (7) and the outer wall of the slide (2) are welded with a spring (71), and the outer wall of the lifting frame (62) is welded with an extension column (621) extending to the outside of the storage groove (111).

6. The reinforcing bar raw material tensile strength detection device according to claim 5, characterized in that: The top outer wall of the storage groove (111) is welded with a material guiding inclined plate (112), and the end of the material guiding inclined plate (112) is welded with a transfer chamber (113) which is inclined downward.

7. The reinforcing bar raw material tensile strength detection device according to claim 6, characterized in that: The bottom of the transfer chamber (113) is provided with a discharging port (114), and a rotating drum (5) is rotatably inserted into the transfer chamber (113) through a shaft, and the outer wall of the rotating drum (5) is provided with a plurality of equidistantly circumferentially distributed clamping grooves (51) which are matched with the reinforcing steel bars (9).

8. The reinforcing bar raw material tensile strength detection device according to claim 7, characterized in that: The rotating shaft of the rotating drum (5) is welded with a winch (53) on one end of the outer wall of a support (11), a coil spring (52) is welded between the outer wall of the rotating shaft of the rotating drum (5) and the outer wall of the support (11), the outer wall of the winch (53) is wound with a rope (54), the outer wall of the support (11) is rotatably inserted with a wire wheel (13), and the free end of the rope (54) is fixed on an extension column (621) after passing above the wire wheel (13).

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