CN219829750U - Static magnetic grid displacement sensor for hydraulic gate hydraulic cylinder - Google Patents

Abstract

The utility model discloses a static magnetic grid displacement sensor for a hydraulic gate hydraulic cylinder, which comprises a telescopic mechanism, wherein a measuring rod is arranged above the telescopic mechanism; the fixing assembly comprises two arc clamping plates, two supporting plates and a fixed inclined plate, and two arc clamping plates are arranged at the output end of the telescopic mechanism. According to the utility model, the fixing assembly is arranged, when the telescopic mechanism is installed, the two arc-shaped clamping plates are pulled out forcibly, and after the telescopic mechanism is placed in the middle of the two arc-shaped clamping plates, the two arc-shaped clamping plates are loosened, so that the arc-shaped fixing plate and the fixing sleeve can be automatically fixed on the telescopic mechanism, and the operation is convenient; through setting up spacing subassembly, stretch into fixed telescopic spacing inslot with the hexagon card post on the measuring stick, can prevent effectively that relative displacement from taking place between measuring stick and the fixed sleeve, through wedge and stopper for fixed sleeve can drive the measuring stick and remove when removing, guaranteed displacement measuring accuracy.

Description

Static magnetic grid displacement sensor for hydraulic gate hydraulic cylinder

Technical Field

The utility model relates to the technical field of displacement measurement, in particular to a static magnetic grid displacement sensor for a hydraulic gate hydraulic cylinder.

Background

In the use process of the water conservancy valve, because the water pressure is often larger, the hydraulic oil cylinder is required to be used as a driving force, and before the hydraulic oil cylinder is used, the displacement distance of a piston rod in the hydraulic oil cylinder is required to be measured through a static magnetic grid displacement sensor.

Through retrieval, the patent document with the publication number of CN210689505U discloses a static magnetic grating displacement sensor, which comprises a measuring rod, a static magnetic grating ruler and a telescopic mechanism, wherein the static magnetic grating ruler is fixedly arranged relative to the telescopic mechanism; one end of the measuring rod is fixedly connected with the telescopic end of the telescopic mechanism, and the movable end of the telescopic mechanism drives the measuring rod to linearly move relative to the static magnetic grid ruler; the telescopic mechanism is characterized by further comprising a plurality of anti-rotation brackets and hollow sleeves, wherein the anti-rotation brackets and the sleeves are fixedly arranged relative to the telescopic mechanism, and the anti-rotation brackets are provided with first through holes which are communicated; the sleeve and the static magnetic grating ruler are all arranged in the first through holes of the anti-rotation brackets in a penetrating way; the surface of the sleeve is propped against the surface of the magnetostatic grating ruler, and the surface of the anti-rotation support at the first through hole is propped against the outer surfaces of the sleeve and the magnetostatic grating ruler respectively; the measuring rod is embedded in the sleeve, and the measuring rod is slidable relative to the inner surface of the sleeve.

Above-mentioned magnetostatic grating displacement sensor is in the in-process of using, needs to be fixed in telescopic machanism with the mount through fastening bolt, and the operation is comparatively inconvenient, and in the use simultaneously, the measuring stick rotates very easily for the mount, leads to unable fine prevention measuring stick to rotate for the measurement of displacement is inaccurate.

Disclosure of Invention

The utility model aims to solve the problems that a fixing frame is inconvenient to fix and a measuring rod is easy to rotate relative to the fixing frame in the prior art, and provides a static magnetic grid displacement sensor for a hydraulic gate hydraulic cylinder, which can automatically clamp and fix a fixing sleeve on a telescopic mechanism and prevent rotation between the measuring rod and the fixing sleeve.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a static magnetic grating displacement sensor for a hydraulic gate hydraulic cylinder, comprising:

the telescopic mechanism is provided with a measuring rod above;

the fixed subassembly, fixed subassembly includes two arc grip blocks, two backup pads and fixed swash plate, be equipped with two arc grip blocks on telescopic machanism's the output, wherein one fixedly connected with two backup pads on the arc grip block, another fixedly connected with fixed swash plate on the arc grip block, fixed swash plate rotates to be connected in two backup pads, two a lateral wall that arc grip block bottom is close to each other, through a plurality of first spring elastic connection.

Preferably, the method further comprises: limiting component, limiting component includes hexagon card post, arc fixed plate, dead lever, fixed sleeve, spacing groove, two spouts, two wedge and two second springs, one side fixedly connected with hexagon card post that the measuring stick is close to the arc grip block, two fixedly connected with arc fixed plate on one of the arc grip block, through dead lever fixedly connected with fixed sleeve on the arc fixed plate, set up on the fixed sleeve with hexagon card post complex spacing groove, two spouts have been seted up on the hexagon card post, two equal sliding connection has the wedge in the spout, every the wedge all passes through the inner wall elastic connection of second spring and spout.

Preferably, the inner walls of the two arc-shaped clamping plates are respectively provided with an anti-slip film.

Preferably, two limiting blocks are fixedly connected to the hexagonal clamping columns.

Preferably, the distance between the two limiting blocks and the two wedge blocks is the same as the width of the fixed sleeve.

Preferably, the telescopic mechanism is provided with a guide sleeve.

Compared with the prior art, the utility model has the following advantages:

1. according to the utility model, the fixing assembly is arranged, when the telescopic mechanism is installed, the two arc clamping plates are pulled out by force to enable the two arc clamping plates to be far away from each other, after the telescopic mechanism is placed at the middle position of the two arc clamping plates, the two arc clamping plates are loosened, so that the two arc clamping plates can be clamped and fixed on the telescopic mechanism under the action of the elastic force of the first spring, and the arc fixing plate and the fixing sleeve are automatically fixed on the telescopic mechanism, so that the telescopic mechanism is convenient to operate.

2. According to the utility model, the hexagonal clamping column on the measuring rod is extended into the limiting groove of the fixed sleeve by arranging the limiting component, so that the relative displacement between the measuring rod and the fixed sleeve can be effectively prevented, and the fixed sleeve can drive the measuring rod to move when moving through the wedge-shaped block and the limiting block, thereby ensuring the accuracy of displacement measurement.

Drawings

Fig. 1 is a schematic perspective view of a static magnetic grating displacement sensor for a hydraulic gate hydraulic cylinder;

fig. 2 is a schematic diagram of a three-dimensional mechanism at the other side of the static magnetic grid displacement sensor for a hydraulic gate hydraulic cylinder;

FIG. 3 is an enlarged view of FIG. 2 at A;

fig. 4 is a schematic side view of a static magnetic grid displacement sensor for a hydraulic gate hydraulic cylinder according to the present utility model.

In the figure: 1. a telescoping mechanism; 11. a measuring rod; 12. a guide sleeve; 2. a fixing assembly; 21. an arc-shaped clamping plate; 22. a support plate; 23. fixing the sloping plate; 24. a first spring; 3. a limit component; 31. hexagonal clamping columns; 32. an arc-shaped fixing plate; 33. a fixed rod; 34. a fixed sleeve; 35. a limit groove; 36. a chute; 37. wedge blocks; 38. a second spring; 39. and a limiting block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 4, a static magnetic grating displacement sensor for a hydraulic gate hydraulic cylinder includes:

the telescopic mechanism 1 is provided with a measuring rod 11 above the telescopic mechanism 1;

the telescopic mechanism 1 is provided with a guide sleeve 12 which can fix the measuring rod 11.

The fixed assembly 2, fixed assembly 2 includes two arc grip blocks 21, two backup pads 22, fixed swash plate 23 and a plurality of first spring 24, be equipped with two arc grip blocks 21 on telescopic machanism 1's the output, two backup pads 22 of fixedly connected with on one of them arc grip block 21, fixed swash plate 23 of fixedly connected with on another arc grip block 21, fixed swash plate 23 rotates to be connected in two backup pads 22, a lateral wall that is close to each other in two arc grip block 21 bottoms, through a plurality of first spring 24 elastic connection.

Through two backup pads 22 and fixed swash plate 23 for two arc grip blocks 21 can keep away from each other under the effect of tensile force, when the installation, draw two arc grip blocks 21 outward by force, make two arc grip blocks 21 keep away from each other, place telescopic machanism 1 behind two arc grip blocks 21 intermediate positions, loosen two arc grip blocks 21, can make two arc grip blocks 21 clamp and be fixed in telescopic machanism 1 under the elasticity effect of first spring 24, automatically be fixed in arc fixed plate 32 and fixed sleeve 34 on telescopic machanism 1, the simple operation all is equipped with the anti-skidding membrane on the inner wall of two arc grip blocks 21, make two arc grip blocks 21 can not take place to rotate after being fixed in telescopic machanism 1, in addition, the elasticity of first spring 24 can set up great, can make two arc grip blocks 21 hug closely the outer wall at telescopic machanism 1 all the time.

The limiting component 3, the limiting component 3 includes hexagon card post 31, arc fixed plate 32, dead lever 33, fixed sleeve 34, spacing groove 35, two spouts 36, two wedge 37 and two second springs 38, one side fixedly connected with hexagon card post 31 that measuring rod 11 is close to arc grip block 21, fixedly connected with arc fixed plate 32 on one of two arc grip blocks 21, fixedly connected with fixed sleeve 34 through dead lever 33 on the arc fixed plate 32, offered on the fixed sleeve 34 with hexagon card post 31 complex spacing groove 35, offered two spouts 36 on the hexagon card post 31, all sliding connection has wedge 37 in two spouts 36, every wedge 37 is all through second spring 38 and the inner wall elastic connection of spout 36.

During actual use, the hexagonal clamping column 31 on the measuring rod 11 stretches into the limiting groove 35 of the fixed sleeve 34, and because the limiting groove 35 is completely attached to each surface of the hexagonal clamping column 31, relative displacement between the measuring rod 11 and the fixed sleeve 34 can be effectively prevented, two limiting blocks 39 are fixedly connected to the hexagonal clamping column 31, the distance between the two limiting blocks 39 and the two wedge blocks 37 is identical to the width of the fixed sleeve 34, the wedge blocks 37 are pushed into the sliding groove 36 in the process that the hexagonal clamping column 31 enters the limiting groove 35, and after the hexagonal clamping column 31 enters the limiting groove 35 for a certain distance, the wedge blocks 37 automatically pop out of the sliding groove 36 under the action of the elastic force of the second spring 38, and at the moment, the fixed sleeve 34 can drive the measuring rod 11 to move left and right when moving left and right through the wedge blocks 37, so that the accuracy of displacement measurement is ensured.

The utility model can explain its functional principle by the following modes of operation:

when the telescopic mechanism is used, the two arc-shaped clamping plates 21 are pulled apart by a certain distance, so that the telescopic mechanism 1 is positioned in the middle of the two arc-shaped clamping plates 21, and the two arc-shaped clamping plates 21 are loosened, so that the two arc-shaped clamping plates 21 are automatically clamped and fixed on the telescopic mechanism 1 under the action of the elastic force of the first spring 24, and further, the arc-shaped fixing plate 32 and the fixing sleeve 34 above the arc-shaped fixing plate are fixed on the telescopic mechanism 1, so that the telescopic mechanism is convenient to operate and quite convenient to assemble and disassemble;

the hexagonal clamping column 31 on the measuring rod 11 stretches into the fixed sleeve 34, the fixed sleeve 34 is fixed with the measuring rod 11 through the wedge-shaped blocks 37 and the limiting blocks 39, the telescopic mechanism 1 drives the measuring rod 11 to displace while displacing, the hexagonal clamping column 31 enables the measuring rod 11 and the fixed sleeve 34 not to rotate easily, accuracy of displacement measurement is guaranteed, and after the measuring rod is used, the measuring rod 11 can be pulled out from the fixed sleeve 34 only by pressing the two wedge-shaped blocks 37 into the sliding groove 36.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. A static magnetic grid displacement sensor for a hydraulic gate hydraulic cylinder, comprising:

the telescopic mechanism (1), the telescopic mechanism (1) is provided with a measuring rod (11) above;

fixed subassembly (2), fixed subassembly (2) include two arc grip blocks (21), two backup pads (22), fixed swash plate (23) and a plurality of first spring (24), be equipped with two arc grip blocks (21) on the output of telescopic machanism (1), wherein one fixedly connected with two backup pads (22) on arc grip block (21), another fixed swash plate (23) of fixedly connected with on arc grip block (21), fixed swash plate (23) rotate and connect in two backup pads (22), two a lateral wall that arc grip block (21) bottom is close to each other, through a plurality of first spring (24) elastic connection.

2. The static magnetic grid displacement sensor for hydraulic gate cylinders according to claim 1, further comprising:

spacing subassembly (3), spacing subassembly (3) include hexagon card post (31), arc fixed plate (32), dead lever (33), fixed sleeve (34), spacing groove (35), two spouts (36), two wedge (37) and two second springs (38), one side fixedly connected with hexagon card post (31) that measuring stick (11) are close to arc grip block (21), two fixedly connected with arc fixed plate (32) in one of arc grip block (21), fixedly connected with fixed sleeve (34) through dead lever (33) on arc fixed plate (32), offered on fixed sleeve (34) with hexagon card post (31) complex spacing groove (35), two spout (36) have been seted up on hexagon card post (31), two equal sliding connection has wedge (37) in spout (36), every wedge (37) all pass through the inner wall elastic connection of second spring (38) with spout (36).

3. The static magnetic grid displacement sensor for hydraulic gate cylinders according to claim 1, wherein:

anti-slip films are arranged on the inner walls of the two arc-shaped clamping plates (21).

4. A static magnetic grid displacement sensor for hydraulic gate cylinders according to claim 2, wherein:

two limiting blocks (39) are fixedly connected to the hexagonal clamping columns (31).

5. The static magnetic grid displacement sensor for hydraulic gate cylinders according to claim 4, wherein:

the distance between the two limiting blocks (39) and the two wedge-shaped blocks (37) is the same as the width of the fixed sleeve (34).

6. The static magnetic grid displacement sensor for hydraulic gate cylinders according to claim 1, wherein:

the telescopic mechanism (1) is provided with a guide sleeve (12).