Bolt axial force detector

Abstract

The utility model discloses a bolt axial force detector which comprises a detection table, a detector is fixedly arranged at the top end of the detection table, a connecting shaft is fixedly arranged at the output shaft end of the detector, a fixed rod is fixedly arranged at the top end of the detection table in an embedded mode, a movable block is arranged at the top end of the fixed rod in a sliding mode, and a groove body is formed in the top end of the movable block. And a first movable plate is arranged in the groove body in a sliding manner. According to the utility model, a to-be-detected bolt passes through the positioning holes at the centers of the first movable plate and the second movable plate, then the first movable plate and the second movable plate are arranged in the movable block in a sliding manner, then the nut is sleeved on the outer side of the bolt, and the movable block is moved along the fixed rod until the nut passes through the outer side of the connecting shaft. The bolt is connected with the connecting shaft, then the screw rod is rotated, the clamping block moves along the screw rod until the end of the bolt is clamped and fixed, so that when the connecting shaft is rotated and tightened, the clamping block fixes the bolt, the bolt is prevented from rotating along with the bolt, and the detection accuracy is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt axial force detection equipment field, concretely is a bolt axial force detector. BACKGROUND

[0002] Bolt axial force is the key concept in mechanical design, it refers to the internal force acting on the bolt axial direction, in engineering application, such as wind driven generator, automobile engine etc., the size and distribution of bolt axial force have the vital influence to the stability and safety of connecting node.

[0003] Bolt axial force needs to be fixed in the detection point position when detecting the bolt to be detected, then the detector is fixed through the movable shaft with the bolt, after that, the detector drives the movable shaft to rotate to detect the bolt, and in the detection, because the torsion is big, the bolt is easy to rotate, resulting in inaccurate detection result, so an urgent need for a device to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a bolt axial force detector to solve the problems in the above background.

[0005] In order to realize the above object, the utility model provides the following technical scheme: a bolt axial force detector, including the detection stage, the detection stage top fixedly arranged with the detector, the detector output shaft end fixedly arranged with the connecting shaft, the detection stage top inlay fixedly arranged with the fixed rod, the fixed rod top slidingly arranged with the movable block, the movable block top is equipped with the slot, the slot inside slidingly arranged with the first movable plate, the movable block one side slidingly arranged with the second movable plate, the movable block inside movable inlay arranged with the screw rod, the screw rod other side is provided with the power mechanism that is convenient for driving the screw rod rotation, the screw rod outside is provided with the clamping block through the thread sleeve joint, the clamping block inboard and bolt head outside fit, when using, the bolt to be detected is passed through the positioning hole inside the first movable plate, second movable plate center, then the first movable plate, second movable plate slidingly arranged in the movable block, after the nut is sleeved on the bolt outside, and along the fixed rod moves the movable block, until the nut is inserted into the connecting shaft outside, so that the bolt is connected with the connecting shaft, then rotates the screw rod, so that the clamping block moves along the screw rod, until the bolt head is clamped and fixed, so the connecting shaft rotates the strength, at this moment, the clamping block fixes the bolt, prevents the bolt from rotating, guarantees the detection accuracy.

[0006] Preferably, the power mechanism comprises an extension block, a rotating block, a worm and a worm wheel, the worm wheel is fixed on one side of the screw rod, the extension block is fixed on one side of the movable block, the extension block is provided with two, symmetrically fixed on both sides of the screw rod, the worm is movably embedded between the extension blocks, the worm wheel is engaged with the worm, the rotating block is fixed on one side of the worm, in use, the worm is rotated by the rotating block, so that the worm wheel is rotated, thus driving the screw rod to rotate, so that after the clamping block is clamped and fixed, the worm and the worm wheel are self-locked, preventing the screw rod from rotating in reverse direction to cause the clamping to be loose, and ensuring the clamping stability.

[0007] Preferably, the fixed rod is provided with two, symmetrically fixed on both sides of the top end of the detection table.

[0008] Preferably, the first movable plate and the second movable plate are provided with positioning holes in the center positions.

[0009] Preferably, the screw rod is a positive and negative screw rod, the screw rod is movably extended to the outside of the movable block on both sides, and a limiting block is fixed on one side of the screw rod.

[0010] Preferably, one side of the clamping block is closely attached to the outside of the first movable plate.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. In use, the bolt to be detected is inserted through the positioning holes in the centers of the first movable plate and the second movable plate, then the first movable plate and the second movable plate are slidably arranged in the movable block, then the nut is sleeved on the outside of the bolt, and the movable block is moved along the fixed rod until the nut is inserted into the outside of the connecting shaft, so that the bolt is connected with the connecting shaft, then the screw rod is rotated, so that the clamping block is moved along the screw rod until the bolt end is clamped and fixed, so that when the connecting shaft is rotated, the clamping block fixes the bolt, preventing the bolt from rotating, and ensuring the detection accuracy.

[0013] 2. In use, the worm is rotated by the rotating block, so that the worm wheel is rotated, thus driving the screw rod to rotate, so that after the clamping block is clamped and fixed, the worm and the worm wheel are self-locked, preventing the screw rod from rotating in reverse direction to cause the clamping to be loose, and ensuring the clamping stability. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a whole structure schematic view of the bolt axial force detector.

[0015] Fig. 2 It is a sectional view of the bolt axial force detector.

[0016] Fig. 3 It is an enlarged schematic view of the bolt axial force detector A.

[0017] In the figure: 1, detection platform; 2, detector; 3, connecting shaft; 4, fixed rod; 5, movable block; 6, groove; 7, first movable plate; 8, second movable plate; 9, screw rod; 10, clamping block; 11, worm; 12, extension block; 13, rotating block; 14, worm. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0019] Please refer to Figs. 1-3 The utility model provides a bolt axial force detector, including detection platform 1, the top of detection platform 1 is fixed with detector 2 through bolt, the output shaft end of detector 2 is fixed with connecting shaft 3 through shaft coupling, the top of detection platform 1 is embedded fixed with fixed rod 4, fixed rod 4 has two, is fixed in the position of both sides of the top of detection platform 1 symmetrically, the top of fixed rod 4 slides with movable block 5, the top of movable block 5 is equipped with groove 6, the inside of groove 6 slides with first movable plate 7, the side of movable block 5 slides with second movable plate 8, the center position of first movable plate 7, second movable plate 8 is equipped with locating hole, movable block 5 is embedded with screw rod 9, screw rod 9 is positive and negative screw rod, screw rod 9 both sides are extended to movable block 5 outside, the side of screw rod 9 is welded with limit block, the other side of screw rod 9 has the power mechanism of the convenience drive screw rod 9 rotation, the outside of screw rod 9 is equipped with clamping block 10 through thread, the side of clamping block 10 is close to the outside of first movable plate 7, the inside of clamping block 10 and the outside of bolt head are in agreement, when using, the bolt to be detected is passed through the inside of the locating hole of the center of first movable plate 7, second movable plate 8, then first movable plate 7, second movable plate 8 are slid in movable block 5, then the nut is sleeved on the outside of bolt, and movable block 5 is moved along fixed rod 4, until the nut is inserted into the outside of connecting shaft 3, so that the bolt is connected with connecting shaft 3, then screw rod 9 is rotated, so that clamping block 10 moves along screw rod 9, until the bolt head is clamped and fixed, so when connecting shaft 3 rotates, clamping block 10 fixes the bolt, prevents the bolt from rotating, and ensures the detection accuracy.

[0020] The power mechanism comprises an extension block 12, a rotating block 13, a worm 14 and a worm wheel 11, the worm wheel 11 is fixed on one side of the screw rod 9 by bolts, the extension block 12 is welded on one side of the movable block 5, the extension block 12 is two, symmetrically fixed on both sides of the screw rod 9, the worm 14 is movably embedded between the extension blocks 12, the worm wheel 11 is engaged with the worm 14, the rotating block 13 is welded on one side of the worm 14, in use, the worm 14 is rotated by the rotating block 13, so that the worm wheel 11 is rotated, thus driving the screw rod 9 to rotate, so that the screw rod 9 is prevented from being reversely rotated to cause the clamping to be loosened, and the clamping stability is ensured.

[0021] Working principle: in use, the bolt to be detected is inserted into the positioning hole in the center of the first movable plate 7 and the second movable plate 8, then the first movable plate 7 and the second movable plate 8 are slidably arranged in the movable block 5, then the nut is sleeved on the outside of the bolt, and the movable block 5 is moved along the fixed rod 4 until the nut is inserted into the outside of the connecting shaft 3, so that the bolt is connected with the connecting shaft 3, then the screw rod 9 is rotated, so that the clamping block 10 is moved along the screw rod 9 until the bolt end is clamped and fixed, so that the connecting shaft 3 is prevented from rotating with the bolt, and the detection accuracy is ensured; in use, the worm 14 is rotated by the rotating block 13, so that the worm wheel 11 is rotated, thus driving the screw rod 9 to rotate, so that the worm 14 and the worm wheel 11 are self-locked after the clamping block 10 is clamped and fixed, the screw rod 9 is prevented from being reversely rotated to cause the clamping to be loosened, and the clamping stability is ensured.

[0022] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0023] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A bolt axial force detector comprising a detection platform (1), characterized in that: The detection platform (1) top fixedly provided with detector (2), the detector (2) output shaft end fixedly provided with connecting shaft (3), the detection platform (1) top inlay fixedly provided with fixed rod (4), the fixed rod (4) top slidingly provided with movable block (5), the movable block (5) top is provided with slot (6), the slot (6) inside slidingly provided with first movable plate (7), the movable block (5) one side slidingly provided with second movable plate (8), the movable block (5) inside movable inlay provided with screw rod (9), the screw rod (9) other side is provided with power mechanism, the screw rod (9) is driven to rotate, the screw rod (9) outside is provided with clamping block (10) through thread sleeve, the clamping block (10) inside and bolt head outside fit.

2. The bolt axial force detector according to claim 1, characterized in that: The power mechanism includes extension block (12), rotating block (13), worm (14) and worm wheel (11), the worm wheel (11) is fixed on one side of the screw rod (9), the extension block (12) is fixed on one side of the movable block (5), the extension block (12) is provided with two, symmetrically fixed on both sides of the screw rod (9), the worm (14) is movably embedded between the extension block (12), the worm wheel (11) is engaged with the worm (14), the rotating block (13) is fixed on one side of the worm (14).

3. The bolt axial force detector according to claim 2, characterized in that: The fixed rod (4) is provided with two, symmetrically fixed on both sides of the detection platform (1) top.

4. The bolt axial force detector according to claim 3, characterized in that: The first movable plate (7), the second movable plate (8) center position is provided with positioning hole.

5. The bolt axial force detector according to claim 4, characterized in that: The screw rod (9) is a positive and negative screw rod, the screw rod (9) both sides are movably extended to the outside of the movable block (5), the screw rod (9) one side is fixedly provided with a limit block.

6. The bolt axial force detector according to claim 5, characterized in that: The clamping block (10) one side is close to the outside of the first movable plate (7).

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