Quick contact type distance fine adjustment device and use method thereof

Abstract

The invention discloses a quick contact type distance fine adjustment device and a using method thereof. The quick contact type distance fine adjustment device comprises angle iron (1) fixedly connected to a servomotor, and a fixing mechanism used for fixing a feedback steel wire rope is arranged on one side of the angle iron (1); an adjusting mechanism for finely adjusting the position of the feedback steel wire rope is arranged on the other side of the angle iron (1). The device has the advantage of fine and accurate adjustment.

Description

Technical Field

[0001] The invention relates to a quick contact type distance fine adjustment device and a use method thereof, in particular to a quick contact type distance fine adjustment device for a switch station and a use method thereof. Background Art

[0002] A pumped storage power station is a hydropower station that uses electricity during low load periods to pump water to the upper reservoir, and releases water to the lower reservoir to generate electricity during peak load periods. It is also called a storage hydropower station. It can convert excess electricity during low load periods into high-value electricity during peak load periods. It is also suitable for frequency and phase modulation, and stabilizes the frequency and voltage of the power system. The pumped storage power station dam plays a vital role in the operation of the power station. It can store water. The dam is used to form a reservoir in the upper reservoir to store water pumped from the lower reservoir when the power demand is low. This stored water is released during peak power demand to meet power demand through hydropower generation. It can also store and regulate seasonal rainwater to reduce the threat of floods to downstream areas. During heavy rains or floods, the dam can store excess water to reduce flood pressure downstream.

[0003] Existing power station units are often equipped with relay feedback devices. Whether the feedback signal is accurate will directly affect the governor adjustment accuracy. When reinstalling the relay feedback device and adjusting the zero point of the feedback wire rope, it is difficult to adjust the zero point, and the calibration often fails due to the displacement of the wire rope when tightening the bolts. Summary of the invention

[0004] The object of the present invention is to provide a quick contact distance fine adjustment device and a method for using the same, which has the advantages of fine and accurate adjustment.

[0005] The technical solution of the present invention is a quick-contact distance fine-adjustment device, comprising an angle iron fixedly connected to a relay, wherein one side of the angle iron is provided with a fixing mechanism for fixing a feedback wire rope; the other side of the angle iron is provided with an adjustment mechanism for fine-tuning the position of the feedback wire rope.

[0006] In the aforementioned quick-contact distance fine-adjustment device, a first through hole for the feedback wire rope to pass through is provided in the middle of the angle iron.

[0007] In the aforementioned quick-contact distance fine-adjustment device, the fixing mechanism includes a locking screw welded to the relay, a second through hole corresponding to the first through hole for the feedback wire rope to pass through is provided in the locking screw, and clamping components for clamping the feedback wire rope are provided on both sides of the second through hole.

[0008] In the aforementioned quick-contact distance fine-adjustment device, the clamping assembly includes a gasket, a spring sheet and a locking nut which are sequentially arranged in a direction away from the second through hole.

[0009] In the aforementioned quick-contact distance fine-adjustment device, the adjustment mechanism includes a fixed sleeve that is perpendicular to the angle iron and whose axis is in the same straight line as the feedback wire rope. The connecting end of the fixed sleeve and the angle iron is provided with mounting ears on the left and right sides. The fixed sleeve is provided with a third through hole at the end away from the angle iron. An adjustment block is provided on the inner side of the fixed sleeve close to the angle iron end. A spring is provided on the inner side of the adjustment block to abut against the inner end surface of the fixed sleeve. A fourth through hole corresponding to the feedback wire rope is provided in the adjustment block. A top screw perpendicular to the fourth through hole is provided at the upper end of the adjustment block. A through groove corresponding to the top screw is provided at the upper end of the fixed sleeve. An adjustment screw is provided at the lower end of the adjustment block through an internal thread parallel to the fourth through hole.

[0010] A method for using a quick contact distance fine adjustment device comprises the following steps:

[0011] S1. First, rotate the locking nut in the fixing mechanism to expose the second through hole, and pass the feedback wire rope through the second through hole;

[0012] S2, then pass the second steel wire rope through the first through hole, the fourth through hole and the third through hole in sequence, and rotate the top screw through the through slot by using a tool, so that the top screw locks the feedback steel wire rope;

[0013] S3. Finally, by rotating the adjusting screw, the adjusting screw drives the adjusting block to move along the inner wall of the fixed sleeve, so that the adjusting block drives the feedback wire rope to move, thereby adjusting the feedback wire rope, and by rotating the locking nut, the feedback wire rope is clamped through the gasket and the spring sheet.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The present application fixes the feedback wire rope through a fixing mechanism. When fixing, the locking nut is rotated to clamp the feedback wire rope through a spring sheet and a gasket, so that the rotational pressure on the wire rope is changed from that before the improvement to only the longitudinal pressure, so that the position of the wire rope does not change when the rotating nut is fixed, thereby solving the problem of calibration failure caused by the rotation of the feedback wire rope when tightening the bolt;

[0016] 2. When the displacement needs to be fine-tuned, the present application only needs to rotate the adjusting screw behind the fixed sleeve, and the adjusting block will be fine-tuned in position through the relative movement of the adjusting nut and the adjusting screw under the rotation of the adjusting screw. Since the position of the adjusting screw is eccentrically set, that is, not coaxial with the fixed sleeve and the adjusting block, the adjusting block will be limited by the inner wall of the fixed sleeve during the adjustment process, and the adjusting block and the feedback wire rope will not be twisted or rotated, and the problem of deformation of the wire rope caused by multiple adjustments to the tightening wire rope is solved;

[0017] 3. The adjustment accuracy of the present application can be adjusted by selecting adjustment screws with different pitches, thereby achieving the selection of different accuracies. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the fixing mechanism of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the fixing sleeve of the present invention.

[0021] The markings in the accompanying drawings are: 1-angle iron, 2-locking screw, 3-second through hole, 4-gasket, 5-spring sheet, 6-locking nut, 7-first through hole, 8-fixing sleeve, 9-third through hole, 10-adjusting block, 11-fourth through hole, 12-top screw, 13-adjusting screw, 15-through slot, 16-mounting ear, 17-spring. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0023] Embodiment. A quick contact distance fine adjustment device, comprising: Figure 1-3 As shown, it includes an angle iron 1 fixedly connected to the relay, and one side of the angle iron 1 is provided with a fixing mechanism for fixing the feedback wire rope; the other side of the angle iron 1 is provided with an adjusting mechanism for fine-tuning the position of the feedback wire rope.

[0024] The middle part of the angle iron 1 is provided with a first through hole 7 for passing the feedback wire rope.

[0025] The fixing mechanism comprises a locking screw 2 welded on the relay, in which a second through hole 3 corresponding to the first through hole 7 for the feedback wire rope to pass through is provided, and clamping components for clamping the feedback wire rope are provided on both sides of the second through hole 3 of the locking screw 2.

[0026] The clamping assembly comprises a gasket 4 , a spring sheet 5 and a locking nut 6 which are sequentially arranged in a direction away from the second through hole 3 .

[0027] The adjustment mechanism includes a fixed sleeve 8 which is perpendicular to the angle iron 1 and whose axis is in the same straight line as the feedback wire rope. The connecting end of the fixed sleeve 8 and the angle iron 1 is provided with mounting ears 16 on the left and right sides. The end of the fixed sleeve 8 away from the angle iron 1 is provided with a third through hole 9. The inner side of the end of the fixed sleeve 8 close to the angle iron 1 is provided with an adjustment block 10. The inner side of the adjustment block 10 is provided with a spring 17 which abuts against the inner end surface of the fixed sleeve 8. A fourth through hole 11 corresponding to the feedback wire rope is provided in the adjustment block 10. A top screw 12 perpendicular to the fourth through hole 11 is provided at the upper end of the adjustment block 10. A through groove 15 corresponding to the top screw 12 is provided at the upper end of the fixed sleeve 8. An adjusting screw 13 is provided at the lower end of the adjustment block 10 through an internal thread parallel to the fourth through hole 11.

[0028] A method for using a quick contact distance fine adjustment device comprises the following steps:

[0029] S1. First, rotate the locking nut in the fixing mechanism to expose the second through hole 3, and pass the feedback wire rope through the second through hole 3;

[0030] S2, then let the second steel wire rope pass through the first through hole 7, the fourth through hole 11 and the third through hole 9 in sequence, and use a tool to pass through the through slot 15 to rotate the top screw 12 so that the top screw 12 locks the feedback steel wire rope;

[0031] S3. Finally, by rotating the adjusting screw 13, the adjusting screw 13 drives the adjusting block 10 to move along the inner wall of the fixed sleeve 8, so that the adjusting block 10 drives the feedback wire rope to move, thereby realizing the adjustment of the feedback wire rope, and by rotating the locking nut 6, the feedback wire rope is clamped through the gasket 4 and the spring sheet 5.

[0032] Principle of the present invention: The angle iron 1 and the locking screw 2 of the present application are fixedly connected to the relay, and can be connected by welding or the like. The adjustment mechanism can be assembled and disassembled from the angle iron 1 through the mounting ear 16 on the fixed sleeve 8, and when in use, the adjustment screws with different pitches are selected according to the required adjustment accuracy. During installation, first place the spring in the spring groove of the adjusting block 10, then place the spring 17 and the adjusting block 10 together in the fixed sleeve 8, and make the end of the spring 17 butt against the inner end surface of the fixed sleeve 8, and rotate the adjusting block 10 to make the top wire 12 correspond to the through slot 15, and then install the fixed sleeve 8 on the angle iron 1 through the mounting ear 16, and the two are fixed by bolts and nuts. At this time, the spring presses the adjusting block on the angle iron 1, and then the adjusting screw 13 passes through the end surface of the fixed sleeve 8 and moves in the direction of the angle iron 1. The adjusting screw 13 will first be screwed in relative to the adjusting block 10 until the end surface of the adjusting screw 13 butts against the fixed sleeve 8, and then the feedback wire rope is passed through the second through hole 3, the first through hole 7, the fourth through hole 11 and the third through hole 9 in turn, and the top wire 12 is rotated through the through slot 15 by a tool to lock the feedback wire rope with the top wire 12. Then rotate the adjusting screw 13. Since the end face of the adjusting screw 13 has been against the fixed sleeve 8, the position of the adjusting screw remains unchanged during the continued rotation. The teeth on the adjusting screw 13 will cooperate with the internal thread in the adjusting block 10. Moreover, since the adjusting screw 13 is eccentrically set, the inner wall of the fixed sleeve 8 will limit the adjusting block, so that the adjusting block 10 will not rotate, and the adjusting block 10 will move in the direction away from the angle iron 1, so that the adjusting block drives the feedback wire rope for fine adjustment. After the adjustment is completed, rotate the locking nut 6 so that the locking nut 6 locks the feedback wire rope through the gasket 4 and the spring sheet 5, so that the rotational pressure on the wire rope is changed from the rotational pressure before the improvement to only the longitudinal pressure, so that the position of the wire rope does not change when the rotating nut is fixed, thereby solving the problem of the feedback wire rope rotating when the bolt is tightened and causing the calibration failure. Finally, the adjustment mechanism can be removed through the mounting ear to adjust the next set of feedback wire ropes.

Claims

1. A quick contact distance fine adjustment device, characterized in that: It comprises an angle iron (1) fixedly connected to a relay, wherein one side of the angle iron (1) is provided with a fixing mechanism for fixing a feedback steel wire rope; and the other side of the angle iron (1) is provided with an adjusting mechanism for fine-tuning the position of the feedback steel wire rope.

2. A quick contact distance fine adjustment device according to claim 1, characterized in that: A first through hole (7) for passing a feedback wire rope is provided in the middle of the angle iron (1).

3. A quick contact distance fine adjustment device according to claim 1, characterized in that: The fixing mechanism comprises a locking screw (2) welded to the relay, the locking screw (2) is provided with a second through hole (3) for the feedback wire rope to pass through and corresponding to the first through hole (7), and the locking screw (2) is provided with clamping components for clamping the feedback wire rope on both sides of the second through hole (3).

4. A quick contact distance fine adjustment device according to claim 3, characterized in that: The clamping assembly comprises a gasket (4), a spring sheet (5) and a locking nut (6) which are arranged in sequence along a direction away from the second through hole (3).

5. A quick contact distance fine adjustment device according to claim 1, characterized in that: The adjustment mechanism comprises a fixed sleeve (8) which is perpendicular to the angle iron (1) and whose axis is in the same straight line as the feedback steel wire rope; the fixed sleeve (8) is provided with mounting ears (16) on the left and right sides of the connection end with the angle iron (1); the fixed sleeve (8) is provided with a third through hole (9) at the end away from the angle iron (1); the inner side of the fixed sleeve (8) close to the angle iron (1) is provided with an adjustment block (10); the inner side of the adjustment block (10) is provided with a spring (17) which abuts against the inner end surface of the fixed sleeve (8); the adjustment block (10) is provided with a fourth through hole (11) corresponding to the feedback steel wire rope; the upper end of the adjustment block (10) is provided with a top screw (12) perpendicular to the fourth through hole (11); the upper end of the fixed sleeve (8) is provided with a through groove (15) corresponding to the top screw (12); and the lower end of the adjustment block (10) is provided with an adjustment screw (13) through an internal thread parallel to the fourth through hole (11).

6. A method for using a quick contact distance fine adjustment device according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. First, the locking nut in the fixing mechanism is rotated to expose the second through hole (3), and the feedback wire rope is passed through the second through hole (3); S2, then passing the second steel wire rope through the first through hole (7), the fourth through hole (11) and the third through hole (9) in sequence, and rotating the top wire (12) through the through groove (15) by means of a tool, so that the top wire (12) locks the feedback steel wire rope; S3. Finally, by rotating the adjusting screw (13), the adjusting screw (13) drives the adjusting block (10) to move along the inner wall of the fixed sleeve (8), so that the adjusting block (10) drives the feedback wire rope to move, thereby adjusting the feedback wire rope, and by rotating the locking nut (6), the feedback wire rope is clamped through the gasket (4) and the spring sheet (5).

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