Hydraulic oil cylinder body inspection device

Abstract

The utility model relates to a hydraulic oil cylinder body inspection device, which comprises a shell and a plurality of lifting rods arranged in the shell, the middle sections of the lifting rods are hinged on the shell, the end parts of the lifting rods are connected with the shell through springs, one end of each lifting rod is provided with an inner top plate, and the other end of each lifting rod is provided with an outer top plate. The inner top plate extends out of the shell and is attached to the inner wall of the hydraulic oil cylinder body, an outer top plate is installed at the end, away from the inner top plate, of the lifting rod, an alarm mechanism is installed on the shell, the outer top plate extends to the alarm mechanism, a main screw is fixedly connected to the shell, a fixing frame is in threaded connection with the main screw, and the fixing frame is fixedly connected with the lifting rod. The fixing frame is installed on the outer wall of the hydraulic oil cylinder body. The alarm mechanism comprises an alarm and a battery, a conducting strip is arranged on the outer top plate, the alarm and the battery form a closed loop through the conducting strip, whether the ashtray body can continue to be used or not can be detected, the alarm can be given out when it is detected that the inner wall of the ashtray body becomes thin, and operation is easier and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinders, in particular to the field of oil cylinder inspection, and specifically refers to a hydraulic oil cylinder body inspection device. Background Art

[0002] The oil cylinder is a hydraulic cylinder. The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion or swinging motion. It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. In addition to being used individually, hydraulic cylinders can also be combined in two or more or in combination with other mechanisms to perform special functions. Therefore, they are widely used in the hydraulic systems of various machines.

[0003] During the long-term working process, the cylinder body and piston of the hydraulic cylinder are worn during operation, resulting in different inner diameter values ​​of the cylinder body, poor sealing of the hydraulic cylinder, unstable movement, oil leakage and other phenomena. Therefore, it is necessary to regularly inspect the hydraulic cylinder and check the wear of the inner wall of the cylinder body. According to the detected values, it is determined whether the cylinder body can continue to be used, or it should be replaced and repaired in time to avoid greater losses.

[0004] The application document with application number 2019219900518 provides a detection device for a hydraulic cylinder body, which can determine whether the cylinder body can continue to be used based on the detected verticality. However, the application also has some technical problems. It requires manual recording of the detected data multiple times, which is cumbersome to operate. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and provides a hydraulic oil cylinder body inspection device, which can detect whether the cylinder body can continue to be used and send out an alarm when it is detected that the inner wall of the cylinder body becomes thinner, thereby making the operation easier.

[0006] The utility model is realized through the following technical scheme, which provides a hydraulic cylinder body inspection device, including a shell and a plurality of rocker bars installed in the shell, the middle section of the rocker bars is hinged on the shell, the end of the rocker bars is connected to the shell through a spring, one end of the rocker bars is installed with an inner top plate, the inner top plate extends to the outside of the shell and fits with the inner wall of the hydraulic cylinder body, the end of the rocker bars away from the inner top plate is installed with an outer top plate, an alarm mechanism is installed on the shell, the outer top plate extends to the alarm mechanism, a main screw is fixedly connected to the shell, a fixing frame is threadedly connected to the main screw, and the fixing frame is installed on the outer wall of the hydraulic cylinder body; the alarm mechanism includes an alarm and a battery, a conductive sheet is provided on the outer top plate, and the alarm forms a closed loop with the battery through the conductive sheet.

[0007] The utility model fixes the device on the hydraulic cylinder by arranging a fixing frame, and the shell is used to install various components. The shell can be rotated to move into the cylinder body while rotating. Top plates are installed at both ends of the rocker rod. When the shell enters the interior of the hydraulic cylinder body, the inner top plate is pressed against the inner wall under the compression of the spring, and the outer top plate extends to the alarm mechanism. When the wall thickness of the cylinder body becomes thinner, the inner top plate moves outward, and the inner top plate drives the left end of the rocker rod to move up, while the right end of the rocker rod moves down, the outer top plate moves down, and the conductive sheet on the outer top plate contacts the battery and the alarm, so that a closed circuit is formed between the battery and the alarm, and the alarm sounds.

[0008] As an optimization, the alarm mechanism includes an adjustment plate, which is mounted on the housing, and a through slot is provided on the adjustment plate, through which the outer top plate passes, a left guide is mounted on the battery, a right guide is mounted on the alarm, one end of the conductive sheet contacts the left guide, and the end of the conductive sheet away from the left guide is suspended above the right guide. The setting of this optimization scheme can first make the conductive sheet contact the left guide, and the left guide is slightly higher than the right guide, so that the conductive sheet does not contact the right guide. When the outer top plate is displaced, the right guide will contact the conductive sheet. This setting can easily control the distance between the right guide and the conductive sheet, and facilitate the operation of the detection personnel.

[0009] As an optimization, the alarm mechanism includes an adjustment rod rotatably connected to the housing, the adjustment plate is threadedly connected to the adjustment rod, the adjustment plate is slidably connected to a limit rod, and the limit rod is fixed to the housing. The arrangement of this optimization scheme facilitates the adjustment plate to move up and down by rotating the adjustment rod, and facilitates the adjustment plate to make the left guide plate contact with the conductive sheet.

[0010] As an optimization, a working light is installed on the adjustment plate, the working light forms a circuit with the battery through the conductive sheet, and the working light contacts one end of the conductive sheet close to the left guide sheet. The setting of this optimization scheme can ensure that one end of the conductive sheet has contacted the left guide sheet.

[0011] As an optimization, the rocker includes a rod body, both ends of the rod body are provided with mounting grooves, the side walls of the mounting grooves are provided with sliding grooves, a connecting shaft is slidably connected in the sliding grooves, the inner top plate and the outer top plate are installed in the mounting grooves, the inner top plate and the outer top plate are both rotatably connected with the connecting shaft, the shell is provided with a top plate groove, and the inner top plate and the outer top plate pass through the top plate groove. The configuration of this optimization scheme allows the inner top plate and the outer top plate to move vertically in the vertical direction.

[0012] As an optimization, the fixing frame is threadedly connected with a clamping rod, and the clamping rod extends to the outer wall of the hydraulic cylinder body. The setting of this optimization scheme facilitates fixing the fixing frame on the hydraulic cylinder body by tightening the clamping rod.

[0013] As an optimization, a round handle is fixedly connected to the main screw rod. The configuration of this optimization solution makes it convenient for the inspector to rotate the screw rod through the round handle.

[0014] The beneficial effects of the utility model are as follows: the utility model can make the shell slowly enter the hydraulic cylinder body by rotating the main screw. When the wall thickness of the hydraulic cylinder body becomes thinner, the conductive sheet on the outer top plate will cause the battery and the alarm to form a closed loop, thereby triggering an alarm to attract the attention of the detection personnel. At the same time, a working light is provided on the alarm mechanism, which can be used to see whether the conductive sheet is in contact with the left guide sheet, thereby ensuring that the alarm mechanism can work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the connection between the fixed frame and the main screw;

[0017] Figure 3 It is a schematic diagram of the connection between the sliding groove and the inner top plate;

[0018] Figure 4 It is a schematic diagram of the alarm mechanism structure;

[0019] Figure 5 is a schematic diagram of the clamping rod structure;

[0020] As shown in the figure:

[0021] 1. Shell, 2. Rocker, 21. Rod body, 22. Spring upper groove, 23. Mounting groove, 24. Sliding groove, 3. Rotating shaft, 4. Inner top plate, 5. Spring, 6. Outer top plate, 61. Plate body, 62. Conductive sheet, 7. Alarm mechanism, 71. Adjusting rod, 72. Adjusting plate, 73. Battery, 74. Alarm, 75. Left guide plate, 76. Right guide plate, 77. Limiting rod, 8. Fixed frame, 81. Extension plate, 82. Connecting plate, 83. Round plate, 9. Clamping rod, 91. Clamping screw, 92. Clamping plate, 10. Main screw. DETAILED DESCRIPTION

[0022] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0023] like Figures 1 to 5The utility model shown is a hydraulic cylinder body inspection device, including a shell 1 and a plurality of rocker bars 2 installed in the shell 1, the shell is cylindrical, the shell 1 extends in the left and right direction, a plurality of rocker bar grooves are opened in the shell, the rocker bar grooves extend in the left and right direction, the inner ends of the rocker bar grooves are opened with spring lower grooves, the spring lower grooves extend in the up and down directions, the rocker bar 2 is installed in the rocker bar grooves, the rocker bar 2 extends in the left and right direction, a rotating hole groove is opened on the rocker bar 2, the rotating hole groove extends in the front and back directions, the rotating hole groove is located in the middle position of the rocker bar in the left and right directions, a rotating shaft 3 is rotatably connected in the rotating hole groove, the rotating shaft 3 extends in the front and back directions, the rotating shaft is fixed to the shell 1, so that the middle section of the rocker bar is hinged to the shell 1.

[0024] The rocker 2 includes a rod body 21, and mounting grooves 23 are provided at both ends of the rod body. The rod body 21 extends in the left-right direction, and the mounting groove is provided on the outer end surface of the rod body 21, and the mounting groove 23 extends in the up-down direction. A spring upper groove is provided on the inner end surface of the rocker 2, and the spring upper groove extends in the up-down direction. The spring upper groove is provided at the left and right ends of the lower end surface of the rocker. The end of the rocker is connected to the shell 1 through a spring 5, and the spring 5 extends in the up-down direction. The upper end of the spring 5 is installed in the spring upper groove, and the lower end of the spring 5 is installed in the spring lower groove. The upper end of the spring 5 is fixedly connected to the rocker 2, and the lower end of the spring 5 is fixedly connected to the shell 1. The elastic coefficient of the spring on the left is greater than the elastic coefficient of the spring on the right. The spring on the left is responsible for restoring or compressing the rocker 2, and the spring on the right plays a buffering role.

[0025] A plurality of top plates are installed on the rocker 2, and the top plates include an inner top plate 4 and an outer top plate 6. The inner top plate 4 is installed at one end of the rocker 2, and the outer top plate 6 is installed at the end of the rocker away from the inner top plate 4. The inner top plate is installed in the mounting groove on the left, and the outer top plate 6 is installed in the mounting groove on the right. The top plates extend in the up and down directions, and a top plate groove is opened on the shell, and the inner top plate 4 and the outer top plate 6 pass through the top plate groove.

[0026] A sliding groove 24 is provided on the front and rear side walls of the mounting groove 23, and the sliding groove extends in the front and rear direction. A connecting shaft 3 is slidably connected in the sliding groove, and the upper and lower end surfaces of the sliding groove are in contact with the connecting shaft. The left and right length of the connecting shaft is smaller than the left and right length of the sliding groove. A connecting shaft hole is provided on the top plate, and the connecting shaft hole extends in the front and rear direction. The connecting shaft is rotatably connected in the connecting shaft hole, so that the inner top plate 4 and the outer top plate 6 are rotatably connected to the connecting shaft, and the connecting shaft 3 extends from the front sliding groove through the connecting shaft hole to the rear sliding groove.

[0027] The inner top plate 4 extends to the outside of the shell 1, and the outer end of the inner top plate 4 is arc-shaped. The outer end of the inner top plate is in contact with the inner wall of the hydraulic cylinder body. The outer top plate 6 extends to the outside of the shell 1. The outer top plate includes a plate body 61, which extends in the up and down directions. The lower end of the plate body 61 is connected to the rocker 3. A conductive sheet 62 is provided on the plate body. The conductive sheet 62 is located outside the shell and is installed on the upper end surface of the plate body 61. The conductive sheet includes an insulating plate, which extends in the horizontal direction. An insulating shaft extending in the vertical direction is fixedly connected to the insulating plate. The lower end of the insulating shaft is rotatably connected to the upper end surface of the outer top plate 6. A conductive plate is fixedly connected to one side of the insulating plate. A first conductive block is fixedly connected to the left end of the conductive plate, a second conductive block is fixedly connected to the right end of the conductive plate, and a third conductive block is fixedly connected to the left end of the insulating plate. The left and right lengths of the conductive sheet 62 are greater than the left and right lengths of the inner top plate and are less than the front and rear lengths of the inner top plate.

[0028] An alarm mechanism 7 is installed on the shell 1, and the alarm mechanism includes an adjusting rod 71, an adjusting plate 72, a battery 73, and an alarm 74. The adjusting rod 71 extends in the up-down direction, and the lower end of the adjusting rod 71 is rotatably connected to the outer end surface of the shell 1. The adjusting plate 72 is threadedly connected to the adjusting rod 71, so that the adjusting plate 72 is installed on the shell 1. The adjusting plate 72 extends in the moisture direction, and a limiting rod 77 is slidably connected to the adjusting plate. The limiting rod 77 extends in the up-down direction. The limiting rod is rectangular, and a limiting groove is provided on the adjusting plate. The outer wall of the limiting rod is fitted with the inner wall of the limiting groove. The limiting rod passes through the limiting groove, and the lower end of the limiting rod is fixed to the shell 1. The limiting rod is engraved with scales in the up-down direction.

[0029] A through slot is provided on the adjustment plate, the outer top plate extends to the alarm mechanism 7, the outer top plate passes through the through slot, the conductive sheet 62 is located above the through slot, the battery and the alarm 74 are fixedly connected to the upper end surface of the adjustment plate 72, the battery 73 is located on the left side of the through slot, the alarm is located on the right side of the through slot, a left guide piece 75 is installed on the battery, the left guide piece is connected to the positive pole of the battery, the left guide piece is fixedly connected to the upper end surface of the adjustment plate 72, the adjustment plate 72 is made of insulating material, the left guide piece is located on the left side of the through slot, a right guide piece 76 is installed on the alarm, the right guide piece is fixedly connected to the upper end surface of the adjustment plate 72, and the right guide piece is fixedly connected to the upper end surface of the adjustment plate 72. The plate is located on the right side of the through slot, the right guide plate is connected to the positive electrode of the alarm 74, the negative electrode of the alarm 74 is connected to the negative electrode of the battery 73, the height of the left guide plate 75 is greater than the height of the right guide plate 76, and the difference is determined according to the minimum thickness of the hydraulic cylinder body wall that can be used. One end of the conductive plate 62 is in contact with the left guide plate 75, and the first conductive block is in contact with the left guide plate 75. The end of the conductive plate 62 away from the left guide plate 75 is suspended above the right guide plate 76. When the outer top plate 6 moves downward, the right guide plate is in contact with the conductive plate, and the alarm 74 forms a closed loop with the battery 73 through the conductive plate 62.

[0030] A working light is installed on the adjustment board, the negative pole of the working light is connected to the negative pole of the battery 73, the positive pole of the working light is connected to the first connecting plate, the connecting plate is conductive, and the positive pole of the battery is connected to the second connecting plate. The working light contacts one end of the conductive plate 62 close to the left guide plate 75, that is, the third conductive block of the conductive plate contacts the connecting plate, so that the working light forms a closed loop with the battery 73 through the conductive plate 62.

[0031] The housing 1 is fixedly connected with a main screw 10, which extends in the left-right direction. The main screw 10 is fixedly connected with a round handle, which is fixedly connected to the right end of the main screw 10. The main screw is threadedly connected with a fixing frame 8, which includes a circular plate 83 threadedly connected to the main screw. A plurality of connecting plates 82 extending in the radial direction of the circular plate 82 are fixedly connected to the outer end surface of the circular plate 83. An extension plate 81 is fixedly connected to the end of the connecting plate 82 away from the circular plate 82. The extension plate 81 is fixedly connected to the end of the connecting plate 82 away from the circular plate 82. 1 extends in the left and right directions, the extension plate 81 is threadedly connected with a clamping rod 9, the clamping rod 9 extends in the radial direction of the housing 1, the clamping rod comprises a clamping screw 91 threadedly connected to the extension plate 81, the lower end of the clamping screw is fixedly connected with a clamping plate 82, the clamping plate is arranged in an arc shape close to the end surface of the housing, the clamping rod 9 extends to the outer wall of the hydraulic cylinder body, the clamping plate fits with the outer end surface of the housing 1, so that the fixing frame 8 is installed on the outer wall of the hydraulic cylinder body.

[0032] During use of this embodiment, the adjusting rod 71 is rotated, and the adjusting plate 72 is first adjusted to an appropriate range according to the scale on the limit rod 77, the hydraulic cylinder body is installed in the fixing frame 8, the clamping rod 9 is tightened to make the clamping plate 92 fit tightly against the outer wall of the hydraulic cylinder body, the main screw 10 is rotated to make the shell 1 enter the cylinder body and make the inner top plate push against the inner wall of the cylinder body, and the adjusting rod 71 is fine-tuned again to make the conductive sheet 62 of the outer top plate 6 contact with the left guide sheet 75. When the conductive sheet 62 contacts with the left guide sheet 75, the third conductive block will connect the working light, and the working light lights up to indicate that the conductive sheet 62 contacts with the left guide sheet 75. At this time, the rotation of the adjusting rod 71 is stopped, the main screw 10 is rotated, and the shell 1 slowly rotates and moves into the cylinder body.

[0033] If the wall thickness of the cylinder body becomes thinner, the inner top plate will move upward under the pressure of the left spring 5, so that the inner top plate 4 continues to fit the inner wall of the cylinder body. The upward movement of the inner top plate 4 drives the left end of the rocker bar 2 to move upward. The left end of the rocker bar 2 moves upward, and the right end of the rocker bar 2 moves downward. The right end of the rocker bar 2 drives the outer top plate 6 to move downward. The downward movement of the outer top plate causes the conductive sheet 62 to move downward. The conductive sheet 62 moves downward so that the right end of the conductive sheet contacts the right guide sheet 76. At this time, the alarm 74 is turned on and the alarm 74 sounds. In order to make the measurement more accurate, the fixing frame 8 can be rotated to change its fixing position before measurement. At the same time, the scale on the limit rod can also play a role in auxiliary measurement.

[0034] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A hydraulic cylinder body inspection device, characterized in that: The invention comprises a housing (1) and a plurality of rocker rods (2) installed in the housing (1), wherein the middle section of the rocker rods is hinged on the housing (1), and the ends of the rocker rods are connected to the housing (1) via springs (5); an inner top plate (4) is installed at one end of the rocker rods, and the inner top plate extends outside the housing (1) and fits the inner wall of the hydraulic cylinder body; an outer top plate (6) is installed at one end of the rocker rods away from the inner top plate (4); an alarm mechanism (7) is installed on the housing, and the outer top plate extends to the alarm mechanism (7); a main screw (10) is fixedly connected to the housing, and a fixing frame (8) is threadedly connected to the main screw, and the fixing frame is installed on the outer wall of the hydraulic cylinder body; The alarm mechanism comprises an alarm (74) and a battery (73); a conductive sheet (62) is provided on the outer top plate; the alarm (74) forms a closed loop with the battery (73) via the conductive sheet (62).

2. A hydraulic cylinder body inspection device according to claim 1, characterized in that: The alarm mechanism comprises an adjustment plate (72), the adjustment plate (72) being mounted on the housing (1), the adjustment plate being provided with a through slot, the outer top plate passing through the through slot, the battery being provided with a left guide plate (75), the alarm being provided with a right guide plate (76), one end of the conductive plate (62) being in contact with the left guide plate (75), and one end of the conductive plate (62) being away from the left guide plate (75) being suspended above the right guide plate (76).

3. A hydraulic cylinder body inspection device according to claim 2, characterized in that: The alarm mechanism comprises an adjustment rod (71) rotatably connected to the housing, the adjustment plate (72) is threadedly connected to the adjustment rod (71), the adjustment plate is slidably connected to a limit rod (77), and the limit rod is fixed to the housing (1).

4. A hydraulic cylinder body inspection device according to claim 2, characterized in that: A working light is mounted on the adjustment plate. The working light forms a closed circuit with the battery (73) via the conductive sheet (62). The working light contacts one end of the conductive sheet (62) close to the left guide sheet (75).

5. The hydraulic cylinder body inspection device according to claim 1, characterized in that: The rocker comprises a rod body (21), both ends of the rod body are provided with mounting grooves (23), the side walls of the mounting groove are provided with sliding grooves (24), a connecting shaft is slidably connected in the sliding groove, the inner top plate and the outer top plate are installed in the mounting groove, the inner top plate (4) and the outer top plate (6) are both rotatably connected to the connecting shaft, and the shell body is provided with a top plate groove, the inner top plate (4) and the outer top plate (6) pass through the top plate groove.

6. The hydraulic cylinder body inspection device according to claim 1, characterized in that: The fixing frame is threadedly connected with a clamping rod (9), and the clamping rod extends to the outer wall of the hydraulic cylinder body.

7. The hydraulic cylinder body inspection device according to claim 1, characterized in that: A round handle is fixedly connected to the main screw (10).

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