Hydraulic cylinder detection device

Abstract

The utility model relates to the technical field of hydraulic cylinder detection, in particular to a hydraulic cylinder detection device which comprises a supporting table and a hydraulic cylinder, vertical plates are fixedly connected to the left side and the right side of the upper end face of the supporting table, limiting sliding grooves are formed in the opposite sides of the two vertical plates, and limiting sliding blocks are slidably connected into the two limiting sliding grooves. A lifting plate is fixedly connected between the two limiting sliding blocks, a first through groove is formed in the left end of the inner wall of the left limiting sliding groove in a penetrating mode, and a pointing needle penetrating through the first through groove is fixedly connected to the left end of the left limiting sliding block. The lifting plate and the pointing needle move downwards until the lifting plate makes contact with the upper end of the hydraulic cylinder, the scale value of the corresponding scale line of the pointing needle is observed at the moment, and the scale value of the scale line pointed by the pointing needle is the deviation value of the stroke of the hydraulic cylinder and the specified standard stroke, so that the accuracy of stroke detection of the hydraulic cylinder is improved; and the operation is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic cylinder detection technical field, concretely is a kind of hydraulic cylinder detection device. BACKGROUND

[0002] Hydraulic cylinder is a kind of linear reciprocating motion driven by hydraulic energy to achieve execution element, mainly by cylinder, piston, piston rod and sealing element etc.;It transmits pressure and flow by the change of sealed volume, converts the energy of hydraulic system into mechanical energy, is widely used in engineering machinery, metallurgy, ship, aerospace etc.,With compact structure, work stable, large output force, easy to realize automation control etc.;Hydraulic cylinder needs to detect the stroke of hydraulic cylinder after being made, to judge whether there is deviation between the stroke of the hydraulic cylinder to be detected and the specified standard stroke, and then judge whether the stroke deviation of hydraulic cylinder is within reasonable range.

[0003] In prior art, the length of hydraulic cylinder after piston rod is fully extended needs to be measured, the length of hydraulic cylinder after piston rod is fully extended minus the length of hydraulic cylinder when piston rod is fully retracted in initial state, that is, the stroke of hydraulic cylinder can be obtained, and then the stroke of hydraulic cylinder is compared with the specified standard stroke, so that whether the stroke deviation of hydraulic cylinder is within reasonable range can be judged, and the measuring tool often uses tape measure.

[0004] But through the above measurement method, it is difficult to ensure that the tape measure is completely parallel to the hydraulic cylinder, and the tape measure is easy to deform due to stretching in use, thereby affecting the accuracy of measurement results, and the measurement by the above method is more troublesome, so it is necessary to provide a kind of hydraulic cylinder detection device to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of hydraulic cylinder detection device, with the characteristics of improving the accuracy of hydraulic cylinder stroke detection and simple operation.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of hydraulic cylinder detection device, including support platform and hydraulic cylinder, the left and right sides of the upper end surface of the support platform are all fixedly connected with vertical plate, the opposite side of two vertical plates is all provided with limit sliding slot, the inside of two limit sliding slots is all slidably connected with limit sliding block, the limit sliding block between two is fixedly connected with lifting plate, the left end of the left end wall of left limit sliding slot is provided with first through slot, the left end of left limit sliding block is fixedly connected with the pointing needle passing through first through slot;

[0007] The left end surface of left vertical plate is slidably connected with scale board by dovetail type sliding slot and dovetail type sliding block, the left end of scale board is provided with scale line, the zero scale of pointing needle and scale line corresponds;

[0008] The lower end of the scale board is fixedly connected with an L-shaped plate, the outer wall of the L-shaped plate is penetrated by a screw rod which is threadedly connected, the right end of the screw rod is fixedly connected with a locking disc which abuts against the left end of the left vertical plate, and the left end of the screw rod is fixedly connected with a torsion block;

[0009] The lower side of the lifting plate is provided with a fixing mechanism.

[0010] In order to fix the hydraulic cylinder between two V-shaped grooves and fix hydraulic cylinders of different sizes, preferably, the fixing mechanism comprises a cavity arranged in the support table, a bidirectional screw rod rotatably connected in the cavity, two symmetrical sliding blocks threadedly connected to the outer wall of the bidirectional screw rod, two rectangular grooves arranged on the upper end of the support table and communicating with the cavity, a connecting rod fixedly connected to the upper end of each sliding block and penetrating through the two rectangular grooves, a clamping block fixedly connected to the other end of each connecting rod, a V-shaped groove arranged on the opposite side of each clamping block, and the outer wall of the hydraulic cylinder abutting against the two V-shaped grooves, and the two sliding blocks being slidably connected to the front and rear sides of the inner wall of the cavity through two sliding rails.

[0011] In order to facilitate the rotation of the torsion block by the inner hexagonal wrench, preferably, a hexagonal groove is arranged on the left end of the torsion block.

[0012] In order to facilitate the upward and downward movement of the right limiting sliding block, a second through groove is arranged on the right end of the right limiting sliding groove, and a hand pushing rod is fixedly connected to the right end of the right limiting sliding block and penetrating through the second through groove.

[0013] In order to facilitate the rotation of the bidirectional screw rod, a hand wheel is fixedly connected to the right end of the bidirectional screw rod and extending to the outside of the support table.

[0014] In order to stably connect the two vertical plates, a top plate is fixedly connected to the upper end of each vertical plate.

[0015] Compared with the prior art, the utility model has the advantages of the following:

[0016] When in use, the lifting plate is moved upward to a certain position, then the hydraulic cylinder is kept and fixed through the fixing mechanism, the lower end of the hydraulic cylinder abuts against the upper end of the supporting table, then the piston rod inside the hydraulic cylinder is completely extended, then the lifting plate and the pointing needle are moved downward until the lifting plate contacts the upper end of the hydraulic cylinder, when the stroke of the hydraulic cylinder is consistent with the specified standard stroke, the pointing needle points to the zero scale value of the scale line, when the stroke of the hydraulic cylinder is smaller than the specified standard stroke, the pointing needle corresponds to the negative scale value, when the stroke of the hydraulic cylinder is larger than the specified standard stroke, the pointing needle corresponds to the positive scale value, and the scale value of the scale line pointed by the pointing needle is the deviation value of the stroke of the hydraulic cylinder and the specified standard stroke, so that the accuracy of the stroke detection of the hydraulic cylinder is improved, and the operation is simple. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall front view of the utility model;

[0018] Figure 2 It is the overall front view of the utility model; Figure 1 It is the enlarged view of A in the figure;

[0019] Figure 3 It is the local left view structure diagram of the utility model;

[0020] Figure 4 It is the overall front view of the utility model; Figure 3 It is the enlarged view of B in the figure;

[0021] Figure 5 It is the local overhead structure section view of the utility model.

[0022] In the figure: 1, supporting table; 2, hydraulic cylinder; 3, cavity; 4, bidirectional screw rod; 5, sliding block; 6, rectangular groove; 7, connecting rod; 8, clamping block; 9, V-shaped groove; 10, vertical plate; 11, limiting sliding groove; 12, limiting sliding block; 13, lifting plate; 14, first through groove; 15, pointing needle; 16, scale plate; 17, scale line; 18, L-shaped plate; 19, screw rod; 20, locking disc; 21, torsion block; 22, second through groove. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further detailed by combining with the drawings and examples.The specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0024] In the description of the utility model, need understanding is, the term "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" "internal", "external" and so on indicate the orientation or positional relation is based on the orientation or positional relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, with a particular orientation structure and operation, therefore cannot be understood as the limitation of the utility model. In addition, in the description of the utility model, the meaning of "a plurality of " is two or more than two, unless otherwise explicitly specifically limited.

[0025] Please refer to Figures 1 to 5 A hydraulic cylinder detection device, including support platform 1 and hydraulic cylinder 2, the left and right sides of support platform 1 upper end surface are all fixedly connected with vertical plate 10, the opposite side of two vertical plates 10 is all set with limit sliding slot 11, the inside of two limit sliding slots 11 is all slidably connected with limit sliding block 12, two limit sliding blocks 12 are fixedly connected with lifting plate 13, the left end of the left end wall of left limit sliding slot 11 is set with first through slot 14, the left end of left limit sliding block 12 is fixedly connected with the pointing needle 15 passing through the first through slot 14;

[0026] The left end surface of left vertical plate 10 is slidably connected with scale plate 16 through dovetail type sliding slot and dovetail type sliding block, the left end of scale plate 16 is provided with scale line 17, the zero scale of pointing needle 15 and scale line 17 correspond;

[0027] The lower end of scale plate 16 is fixedly connected with L-shaped plate 18, the outer wall of L-shaped plate 18 is connected with screw rod 19 through and is screwed, the right end of screw rod 19 is fixedly connected with locking disc 20, which is in contact with the left end of left vertical plate 10, the left end of screw rod 19 is fixedly connected with torsion block 21;

[0028] The lower of lifting plate 13 is provided with fixing mechanism.

[0029] In this embodiment: in use, first push the right side limit slider 12 to move up, and drive the lifting plate 13 to move up with the left side limit slider 12 to a certain position, then the fixed mechanism is kept and fixed to the hydraulic cylinder 2, in this process, need to ensure that the lower end of the hydraulic cylinder 2 and the upper end of the support table 1 are in contact, then make the piston rod in the hydraulic cylinder 2 completely extend (the piston rod can be completely extended by manual or air gun blowing), and keep the position of the piston rod from moving, then pull the two limit sliders 12 and the lifting plate 13 to move down, at the same time drive the pointing needle 15 to move down in the first through slot 14, until the lifting plate 13 is in contact with the upper end of the hydraulic cylinder 2, at this time, observe the scale value of the pointing needle 15 corresponding to the scale line 17, since the height of the scale plate 16 is set in advance according to the standard stroke of the hydraulic cylinder 2, then when the stroke of the hydraulic cylinder 2 is consistent with the specified standard stroke, the pointing needle 15 points to the zero scale value of the scale line 17, since the positive scale value is above the zero scale, and the negative scale value is below the zero scale, when the stroke of the hydraulic cylinder 2 is less than the specified standard stroke, the pointing needle 15 will correspond to the negative scale value, when the stroke of the hydraulic cylinder 2 is greater than the specified standard stroke, the pointing needle 15 will correspond to the positive scale value, and the scale value of the pointing needle 15 pointing to the scale line 17 is the deviation value of the stroke of the hydraulic cylinder 2 and the specified standard stroke, in this way, the accuracy of the stroke detection of the hydraulic cylinder 2 is improved, and the operation is simple;

[0030] When other strokes of the hydraulic cylinder 2 are to be detected, the torsion block 21 is rotated through the inner hexagonal wrench, thereby driving the screw rod 19 and the locking disc 20 to rotate, so that the locking disc 20 can be driven to move left and be separated from the left end of the left vertical plate 10, thereby releasing the limitation of the position of the scale plate 16, then according to the stroke of the hydraulic cylinder 2, the scale plate 16 is pushed to move up or down along the dovetail slider, until the scale plate 16 is moved to the appropriate position according to the needs, and then the torsion block 21 is reversely rotated, thereby making the locking disc 20 tightly abut against the left end of the left vertical plate 10, thereby locking the position of the scale plate 16, in this way, the hydraulic cylinder 2 with different strokes can be detected.

[0031] As a technical optimization scheme of the utility model, the fixed mechanism comprises a cavity 3 arranged in the support table 1, a bidirectional screw rod 4 is rotationally connected in the cavity 3, two symmetrical sliding blocks 5 are threadedly connected to the outer wall of the bidirectional screw rod 4, two rectangular grooves 6 are formed in the upper end of the support table 1 and communicate with the cavity 3, a connecting rod 7 is fixedly connected to the upper end of each of the two sliding blocks 5 and passes through the two rectangular grooves 6 respectively, a clamping block 8 is fixedly connected to the other end of each of the two connecting rods 7, a V-shaped groove 9 is formed in the opposite side of each of the two clamping blocks 8, the outer wall of the hydraulic cylinder 2 abuts against the two V-shaped grooves 9, and the two sliding blocks 5 are slidably connected to the front and back sides of the inner wall of the cavity 3 through two sliding rails.

[0032] In the embodiment, the bidirectional screw rod 4 is rotated, the two sliding blocks 5 are relatively moved under the guidance of the two sliding rails, the two connecting rods 7 and the two clamping blocks 8 are relatively moved, the hydraulic cylinder 2 is clamped between the two V-shaped grooves 9, and the hydraulic cylinder 2 with different sizes can be clamped due to the V-shaped structure of the two V-shaped grooves 9.

[0033] As a technical optimization scheme of the utility model, the left end of the torsion block 21 is provided with a hexagonal groove.

[0034] In the embodiment, the hexagonal groove is arranged to facilitate the rotation of the torsion block 21 by the internal hexagonal wrench.

[0035] As a technical optimization scheme of the utility model, the right end of the inner wall of the right limiting sliding groove 11 is provided with a second through groove 22, and the right end of the right limiting sliding block 12 is fixedly connected with a hand pushing rod penetrating through the second through groove 22.

[0036] In the embodiment, the second through groove 22 is arranged to facilitate the downward movement of the hand pushing rod, and the hand pushing rod is arranged to facilitate the upward and downward movement of the right limiting sliding block 12.

[0037] As a technical optimization scheme of the utility model, the right end of the bidirectional screw rod 4 is fixedly connected with a hand wheel extending to the outside of the supporting table 1.

[0038] In the embodiment, the hand wheel is arranged to facilitate the rotation of the bidirectional screw rod 4.

[0039] As a technical optimization scheme of the utility model, the upper end of the two vertical plates 10 is fixedly connected with a top plate.

[0040] In the embodiment, the top plate is arranged to facilitate the connection and stability of the two vertical plates 10.

[0041] Working principle: in use, first, the right limiting sliding block 12 is pushed upward by the hand pushing rod, and the lifting plate 13 is moved upward to a certain position together with the left limiting sliding block 12, then the bidirectional screw rod 4 is rotated by the hand wheel, the two sliding blocks 5 are relatively moved under the guidance of the two sliding rails, the two connecting rods 7 and the two clamping blocks 8 are relatively moved, the hydraulic cylinder 2 is clamped between the two V-shaped grooves 9, and the lower end of the hydraulic cylinder 2 is abutted with the upper end of the supporting table 1 in the process.

[0042] With the hydraulic cylinder 2 inside the piston rod is fully extended (can be fully extended by hand or air gun blow out), and keep the position of the piston rod does not move, with the two limit the slider 12 and lifting plate 13 down, while leading to the needle 15 in the first through slot 14 inside the down, until the lifting plate 13 and the upper end of the hydraulic cylinder 2 contact, when the observation of the needle 15 corresponding to the scale line 17 scale value, since the height of the scale plate 16 is according to the standard stroke of the hydraulic cylinder 2 in advance set, and then when the stroke of the hydraulic cylinder 2 and the specified standard stroke is consistent, the needle 15 points to the zero scale of the scale line 17, since the zero scale above is the positive scale value, the zero scale below is the negative scale value, when the stroke of the hydraulic cylinder 2 is less than the specified standard stroke, the needle 15 will correspond to the negative scale value, when the stroke of the hydraulic cylinder 2 is greater than the specified standard stroke, the needle 15 will correspond to the positive scale value, and the needle 15 points to the scale value of the scale line 17 is the stroke of the hydraulic cylinder 2 and the specified standard stroke of the deviation value, by this way, thereby achieving the purpose of improving the accuracy of the stroke detection of the hydraulic cylinder 2, and simple operation;

[0043] When other stroke of the hydraulic cylinder 2 is detected, the hexagonal wrench is rotated to rotate the torsion block 21, and the screw rod 19 and the locking disc 20 are rotated, so that the locking disc 20 can be driven to move to the left and be separated from the left end of the left vertical plate 10, so that the position of the scale plate 16 can be released, and then the scale plate 16 is pushed to move up or down according to the stroke of the hydraulic cylinder 2, until the scale plate 16 is moved to the appropriate position according to the need, and then the torsion block 21 is reversely rotated, so that the locking disc 20 is tightly abutted to the left end of the left vertical plate 10, so that the position of the scale plate 16 is locked, and since the two V-shaped grooves 9 are V-shaped structures, different sizes of the hydraulic cylinder 2 can be fixed, so that the hydraulic cylinder 2 with different strokes can be detected.

[0044] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hydraulic cylinder testing device comprising a support table (1) and a hydraulic cylinder (2), characterized in that: Both left and right sides of the upper end surface of the support table (1) are fixedly connected with vertical plates (10), opposite sides of the two vertical plates (10) are both provided with limiting sliding grooves (11), the interiors of the two limiting sliding grooves (11) are both slidably connected with limiting sliding blocks (12), the two limiting sliding blocks (12) are fixedly connected with a lifting plate (13), a first through groove (14) is formed through the left end of the inner wall of the left limiting sliding groove (11), a pointing needle (15) fixedly connected with the left end of the left limiting sliding block (12) passes through the first through groove (14); A scale plate (16) is slidably connected with the left end surface of the left vertical plate (10) through a dovetail sliding groove and a dovetail sliding block, the left end of the scale plate (16) is provided with a scale line (17), the pointing needle (15) corresponds to the zero scale of the scale line (17); The lower end of the scale plate (16) is fixedly connected with an L-shaped plate (18), a screw rod (19) penetrates and is threadedly connected with the outer wall of the L-shaped plate (18), the right end of the screw rod (19) is fixedly connected with a locking disc (20) abutting against the left end of the left vertical plate (10), the left end of the screw rod (19) is fixedly connected with a torsion block (21); The lower portion of the lifting plate (13) is provided with a fixing mechanism.

2. The hydraulic cylinder detection device of claim 1, wherein: The fixing mechanism comprises a cavity (3) arranged in the support table (1), a bidirectional screw rod (4) is rotatably connected in the cavity (3), the outer wall of the bidirectional screw rod (4) is threadedly connected with two symmetrically distributed sliding blocks (5), the upper end of the support table (1) is provided with two left and right distributed rectangular grooves (6) in communication with the cavity (3), the upper ends of the two sliding blocks (5) are both fixedly connected with connecting rods (7) passing through the two rectangular grooves (6) respectively, the other ends of the two connecting rods (7) are both fixedly connected with clamping blocks (8), opposite sides of the two clamping blocks (8) are both provided with V-shaped grooves (9), the outer wall of the hydraulic cylinder (2) abuts against the two V-shaped grooves (9), the two sliding blocks (5) are slidably connected to the front and rear sides of the inner wall of the cavity (3) through two sliding rails.

3. The hydraulic cylinder detection device of claim 1, wherein: A hexagonal groove is formed in the left end of the torsion block (21).

4. The hydraulic cylinder detection apparatus of claim 1, wherein: A second through groove (22) is formed through the right end of the inner wall of the right limiting sliding groove (11), a hand pushing rod is fixedly connected with the right end of the right limiting sliding block (12) and passes through the second through groove (22).

5. The hydraulic cylinder detection apparatus of claim 2, wherein: The right end of the bidirectional screw rod (4) is fixedly connected with a hand wheel extending to the outside of the support table (1).

6. The hydraulic cylinder detection apparatus of claim 1, wherein: The upper ends of the two vertical plates (10) are fixedly connected with a top plate.

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