Hydraulic cylinder stroke detection device

Abstract

The utility model discloses a hydraulic cylinder stroke detection device, which relates to the technical field of hydraulic cylinder stroke detection and comprises a hydraulic cylinder, a detection mechanism and a protection mechanism are arranged on the lower side of the hydraulic cylinder, and the protection mechanism is positioned on the surface of the detection mechanism. The detection mechanism comprises a detection assembly and a fixing assembly; the fixing assembly is located on the left of the detection assembly. The fixing assembly comprises an L-shaped plate, the left side face of the hydraulic cylinder is fixedly connected with the inner side face of the L-shaped plate, and a push rod is arranged on the right side face of the hydraulic cylinder and installed on the right side face of the hydraulic cylinder. Through the arrangement of the detection mechanism, the push rod and the connecting plate are conveniently fixed through the fixing assembly, fixation by means of other tools is avoided, the connecting plate is pushed through the push rod so that the stroke of the hydraulic cylinder can be detected, the gravity borne by the push rod is reduced, a sliding rail in the detection assembly slides in the sliding rail, and the friction contact surface of the sliding rail is reduced; friction force is reduced, and stroke detection accuracy of the hydraulic cylinder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinder stroke detection, in particular to a hydraulic cylinder stroke detection device. Background Art

[0002] A hydraulic cylinder is an energy conversion element that can convert hydraulic energy into mechanical energy and realize linear reciprocating mechanical motion. It plays an irreplaceable role in industrial production. The hydraulic cylinder has a simple structure. By injecting and extracting hydraulic oil into the cylinder body, the extension and retraction movement of the hydraulic rod can be conveniently controlled. The extension and retraction distance of the hydraulic rod can also be controlled by controlling the amount of hydraulic oil input.

[0003] Patent publication number CN211039242U discloses a hydraulic cylinder stroke detection device comprising a U-shaped guide rail with T-shaped track grooves at the top and bottom of the inner wall. A scale body is fixedly sleeved on the front opening of the U-shaped guide rail, and a track through-groove is provided on the back of the U-shaped guide rail. Buffer plates are fixedly connected to each end of the U-shaped guide rail, and buffer slots are provided on opposite sides of the two buffer plates. This device utilizes a ball bearing structure to convert sliding friction between the reading head and the scale body into rolling friction, reducing wear on the reading head and the scale body. It also provides cushioning and vibration reduction at the connection point between the reading head and the hydraulic rod, as well as at the collision points between the reading head and the ends of the U-shaped guide rail, reducing the impact of trace polarization on the scale body.

[0004] However, existing devices still have the following problems: the round buckle is sleeved onto the hydraulic rod and fixed with screws, which requires the use of additional tools for screw fastening. In addition, because the round buckle is fixed to the hydraulic rod, the gravity of the hydraulic rod itself affects the stroke of the hydraulic rod, resulting in errors in the hydraulic cylinder stroke detection. Therefore, a hydraulic cylinder stroke detection device is proposed. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a hydraulic cylinder stroke detection device, which solves the problem that a round buckle is sleeved on the hydraulic rod and the round buckle is fixedly connected by a screw, which requires the use of other tools when fixing the screw. At the same time, since the round buckle is fixed on the hydraulic rod, the gravity of the hydraulic rod itself will affect the stroke of the hydraulic rod, resulting in errors in the hydraulic cylinder stroke detection.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A hydraulic cylinder stroke detection device includes a hydraulic cylinder, a detection mechanism and a protection mechanism are provided on the lower side of the hydraulic cylinder, and the protection mechanism is located on the surface of the detection mechanism;

[0007] The detection mechanism includes a detection component and a fixing component;

[0008] The fixed component is located on the left side of the detection component;

[0009] The fixing assembly includes an L-shaped plate, the left side of the hydraulic cylinder is fixedly connected to the inner side of the L-shaped plate, a push rod is provided on the right side of the hydraulic cylinder, the push rod is installed on the right side of the hydraulic cylinder, a connecting plate is provided on the right side of the push rod, an upper half fixed ring and a lower half fixed ring are provided on the left side of the connecting plate, a push plate is provided below the lower half fixed ring, an empty groove is opened through the left side of the connecting plate, a sliding rod, a sliding cylinder and a first spring are provided inside the empty groove, and the first spring is sleeved on the surface of the sliding cylinder;

[0010] The detection component includes a vernier caliper, a support block is provided on the lower side of the vernier caliper, the bottom surface of the vernier caliper is fixedly connected to the inner top surface of the L-shaped plate through the support block, the outer sides of the two outer measuring jaws of the vernier caliper are respectively connected to the left side of the hydraulic cylinder and the right side of the connecting plate, the bottom surface of the vernier caliper is fixedly connected to a slider, a pulley is installed on the bottom surface of the slider, a slide groove is opened through the inner top surface of the L-shaped plate, and a slide rail is provided inside the slide groove.

[0011] Preferably, the right side of the upper fixed ring is fixedly connected to the left side of the connecting plate, the left side of the lower fixed ring is slidingly connected to the left side of the connecting plate, and the top surface of the push plate is fixedly connected to the bottom surface of the lower fixed ring.

[0012] Preferably, the right end surface of the push plate slides through the left side of the connecting plate and extends into the interior of the empty slot, and the bottom surface of the push plate is fixedly connected to the top surface of the slide rod.

[0013] Preferably, the bottom end surface of the slide rod slides through the top surface of the slide cylinder and extends to the inside of the slide cylinder, the bottom surface of the slide cylinder is fixedly connected to the bottom surface of the inner groove, the top surface of the first spring is fixedly connected to the bottom surface of the push plate, and the bottom end surface of the first spring is fixedly connected to the bottom surface of the inner groove.

[0014] Preferably, the bottom surface of the slide rail is fixedly connected to the inner bottom surface of the slide groove, and the surface of the pulley is slidably connected to the inner side surface of the slide rail.

[0015] Preferably, the protection mechanism includes two protection plates, which are respectively located on the left and right sides of the slider. A damper is provided on the inner side of the protection plate, and a second spring is sleeved on the surface of the damper.

[0016] Preferably, the inner end surface of the damper and the inner end surface of the second spring are both fixedly connected to the outer side surface of the slider, and the outer end surface of the damper output rod and the outer end surface of the second spring are both fixedly connected to the inner side surface of the protective plate. Beneficial effects

[0017] The utility model provides a hydraulic cylinder stroke detection device. Compared with the prior art, it has the following beneficial effects:

[0018] (1) The hydraulic cylinder stroke detection device, through the setting of the detection mechanism, the fixing component is convenient for fixing the push rod and the connecting plate, avoiding the need for fixing with other tools, and the push rod is used to push the connecting plate to detect the stroke of the hydraulic cylinder, reducing the gravity on the push rod, and the slide rail in the detection component slides in the slide rail, reducing its friction contact surface, reducing friction, and improving the accuracy of hydraulic cylinder stroke detection.

[0019] (2) The hydraulic cylinder stroke detection device, through the setting of the protective mechanism, the damping property of the damper itself and the force of the second spring buffer and reduce the shock of the collision position of the left and right ends of the slider, reducing the impact of vibration on the vernier caliper and ensuring the normal use of the measurement personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front cutaway perspective view of the present utility model;

[0021] Figure 2 This is the overall main perspective view of the utility model;

[0022] Figure 3 This is a left-side perspective view of the entire utility model;

[0023] Figure 4 This is a left side cutaway perspective view of the present invention;

[0024] Figure 5 This is a main perspective view of the slide rail of the utility model;

[0025] Figure 6 For this utility model Figure 1 Enlarged stereogram of area A in the middle;

[0026] Figure 7 For this utility model Figure 5 Enlarged stereogram of area B in the middle.

[0027] In the figure: hydraulic cylinder 1, detection mechanism 2, L-shaped plate 201, push rod 202, connecting plate 203, upper fixed ring 204, lower fixed ring 205, sliding rod 206, slide cylinder 207, first spring 208, vernier caliper 209, slider 210, pulley 211, slide rail 212, push plate 213, protective mechanism 3, protective plate 301, damper 302, second spring 303. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 7 , the utility model provides two technical solutions, specifically including the following embodiments: Example 1

[0030] A hydraulic cylinder stroke detection device includes a hydraulic cylinder 1, a detection mechanism 2 and a protection mechanism 3 are provided on the lower side of the hydraulic cylinder 1, and the protection mechanism 3 is located on the surface of the detection mechanism 2;

[0031] The detection mechanism 2 includes a detection component and a fixing component;

[0032] The fixed component is located on the left side of the detection component;

[0033] The fixing assembly includes an L-shaped plate 201. The left side of the hydraulic cylinder 1 is fixedly connected to the inner side of the L-shaped plate 201. A push rod 202 is provided on the right side of the hydraulic cylinder 1. The push rod 202 is installed on the right side of the hydraulic cylinder 1. A connecting plate 203 is provided on the right side of the push rod 202. An upper half fixed ring 204 and a lower half fixed ring 205 are provided on the left side of the connecting plate 203. A push plate 213 is provided below the lower half fixed ring 205. An empty slot is opened through the left side of the connecting plate 203. A sliding rod 206, a sliding cylinder 207 and a first spring 208 are provided inside the empty slot. The first spring 208 is sleeved on the surface of the sliding cylinder 207.

[0034] The detection component includes a vernier caliper 209, a support block is provided on the lower side of the vernier caliper 209, the bottom surface of the vernier caliper 209 is fixedly connected to the inner top surface of the L-shaped plate 201 through the support block, the outer sides of the two outer jaws of the vernier caliper 209 are respectively connected to the left side of the hydraulic cylinder 1 and the right side of the connecting plate 203, the bottom surface of the vernier caliper 209 is fixedly connected to a slider 210, a pulley 211 is installed on the bottom surface of the slider 210, a slide groove is provided on the inner top surface of the L-shaped plate 201, a slide rail 212 is provided inside the slide groove, the right side of the upper half fixed ring 204 is fixedly connected to the left side of the connecting plate 203, and the left side of the lower half fixed ring 205 is fixed to the connecting plate 203 The left side is slidably connected, the top surface of the push plate 213 is fixedly connected to the bottom surface of the lower half fixed ring 205, the right end surface of the push plate 213 slides through the left side of the connecting plate 203 and extends to the inside of the empty groove, the bottom surface of the push plate 213 is fixedly connected to the top surface of the slide rod 206, the bottom end surface of the slide rod 206 slides through the top surface of the slide cylinder 207 and extends to the inside of the slide cylinder 207, the bottom surface of the slide cylinder 207 is fixedly connected to the bottom surface of the inside of the empty groove, the top surface of the first spring 208 is fixedly connected to the bottom surface of the push plate 213, the bottom end surface of the first spring 208 is fixedly connected to the bottom surface of the inside of the empty groove, the bottom surface of the slide rail 212 is fixedly connected to the bottom surface of the inside of the slide groove, and the surface of the pulley 211 is slidably connected to the inner side surface of the slide rail 212.

[0035] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] When working, first move the push plate 213 downward, the push plate 213 squeezes the connected slide bar 206 and the first spring 208, the slide bar 206 slides into the slide cylinder 207, moves the connecting plate 203, makes the connecting plate 203 contact with the push rod 202, the upper half fixed ring 204 contacts the upper surface of the push rod 202, releases the push plate 213, and the force of the first spring 208 pushes the connected push plate 213 to move upward, thereby pushing the lower half fixed ring 205 upward, forming a fixation between the push rod 202 and the connecting plate 203; hydraulic oil is introduced into the hydraulic cylinder 1, so that the push rod 202 is moved The movable connecting plate 203 moves, and the connecting plate 203 drives the vernier caliper 209 to move, so that the slider 210 moves, and the slider 210 drives the connected pulley 211 to slide inside the slide rail 212, and the stroke of the hydraulic cylinder 1 is measured by the reading of the vernier caliper 209; when the slider 210 drives the protective plate 301 to move, the protective plate 301 collides with the inner wall of the slide groove, and the protective plate 301 squeezes the connected damper 302 and the second spring 303, and the damping property of the damper 302 itself and the force of the second spring 303 reduce the vibration of the slider 210.

[0037] Through the setting of the detection mechanism 2, the fixing component can conveniently fix the push rod 202 and the connecting plate 203, avoiding the need for fixation with the help of other tools, and the push rod 202 pushes the connecting plate 203 to detect the stroke of the hydraulic cylinder 1, reducing the gravity on the push rod 202, and the slide rail 212 in the detection component slides in the slide rail 212, reducing its friction contact surface, reducing friction, and improving the accuracy of hydraulic cylinder stroke detection. Example 2

[0038] Based on the first embodiment, the protection mechanism 3 includes two protection plates 301, which are respectively located on the left and right sides of the slider 210. A damper 302 is provided on the inner side of the protection plate 301, and a second spring 303 is sleeved on the surface of the damper 302. The inner end surface of the damper 302 and the inner end surface of the second spring 303 are both fixedly connected to the outer side surface of the slider 210. The outer end surface of the output rod of the damper 302 and the outer end surface of the second spring 303 are both fixedly connected to the inner side surface of the protection plate 301.

[0039] Through the setting of the protection mechanism 3, the damping property of the damper 302 itself and the force of the second spring 303 buffer and shock the collision positions at the left and right ends of the slider 210, reducing the impact of vibration on the vernier caliper 209 and ensuring normal use by measurement personnel.

[0040] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the application should be included in the scope of protection of the present application.

Claims

1. A hydraulic cylinder stroke detection device, comprising a hydraulic cylinder (1), characterized in that: A detection mechanism (2) and a protection mechanism (3) are provided on the lower side of the hydraulic cylinder (1), and the protection mechanism (3) is located on the surface of the detection mechanism (2); The detection mechanism (2) comprises a detection component and a fixing component; The fixed component is located on the left side of the detection component; The fixing assembly comprises an L-shaped plate (201), the left side surface of the hydraulic cylinder (1) is fixedly connected to the inner side surface of the L-shaped plate (201), the right side of the hydraulic cylinder (1) is provided with a push rod (202), the push rod (202) is installed on the right side surface of the hydraulic cylinder (1), a connecting plate (203) is provided on the right side of the push rod (202), an upper half fixing ring (204) and a lower half fixing ring (205) are provided on the left side of the connecting plate (203), a push plate (213) is provided below the lower half fixing ring (205), a hollow groove is provided through the left side surface of the connecting plate (203), a sliding rod (206), a sliding cylinder (207) and a first spring (208) are provided inside the hollow groove, and the first spring (208) is sleeved on the surface of the sliding cylinder (207); The detection component comprises a vernier caliper (209), a support block being arranged at the lower side of the vernier caliper (209), the bottom surface of the vernier caliper (209) being fixedly connected to the inner top surface of the L-shaped plate (201) via the support block, the outer side surfaces of two outer measuring jaws of the vernier caliper (209) being respectively connected to the left side surface of the hydraulic cylinder (1) and the right side surface of the connecting plate (203), the bottom surface of the vernier caliper (209) being fixedly connected to a slider (210), the bottom surface of the slider (210) being equipped with a pulley (211), and a slide groove being provided through the inner top surface of the L-shaped plate (201), and a slide rail (212) being provided inside the slide groove.

2. A hydraulic cylinder stroke detection device according to claim 1, characterized in that: The right side of the upper half fixed ring (204) is fixedly connected to the left side of the connecting plate (203), the left side of the lower half fixed ring (205) is slidably connected to the left side of the connecting plate (203), and the top surface of the push plate (213) is fixedly connected to the bottom surface of the lower half fixed ring (205).

3. A hydraulic cylinder stroke detection device according to claim 1, characterized in that: The right end surface of the push plate (213) slides through the left side surface of the connecting plate (203) and extends into the empty groove, and the bottom surface of the push plate (213) is fixedly connected to the top surface of the sliding rod (206).

4. A hydraulic cylinder stroke detection device according to claim 1, characterized in that: The bottom end surface of the slide rod (206) slides through the top surface of the slide cylinder (207) and extends into the interior of the slide cylinder (207); the bottom surface of the slide cylinder (207) is fixedly connected to the bottom surface of the interior of the empty slot; the top end surface of the first spring (208) is fixedly connected to the bottom surface of the push plate (213); and the bottom end surface of the first spring (208) is fixedly connected to the bottom surface of the interior of the empty slot.

5. A hydraulic cylinder stroke detection device according to claim 1, characterized in that: The bottom surface of the slide rail (212) is fixedly connected to the inner bottom surface of the slide groove, and the surface of the pulley (211) is slidably connected to the inner side surface of the slide rail (212).

6. A hydraulic cylinder stroke detection device according to claim 1, characterized in that: The protection mechanism (3) comprises two protection plates (301), the two protection plates (301) being respectively located on the left and right sides of the slider (210), a damper (302) being arranged inside the protection plates (301), and a second spring (303) being sleeved on the surface of the damper (302).

7. A hydraulic cylinder stroke detection device according to claim 6, characterized in that: The inner end surface of the damper (302) and the inner end surface of the second spring (303) are both fixedly connected to the outer side surface of the slider (210), and the outer end surface of the output rod of the damper (302) and the outer end surface of the second spring (303) are both fixedly connected to the inner side surface of the protective plate (301).

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