Hydraulic cylinder maintenance disassembly and assembly device balance car

By designing a hydraulic cylinder repair, disassembly, and assembly device with a balancing vehicle, and utilizing structures such as a base plate, fixed components, and drive components, the device enables automated fixing and disassembly of cylinder liners and piston rods. This solves the safety hazards and low efficiency problems in the repair process of large hydraulic cylinders, and improves work efficiency and safety.

CN117359542BActive Publication Date: 2026-05-01千阳海螺水泥有限责任公司
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
千阳海螺水泥有限责任公司
Filing Date
2023-10-23
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The maintenance of large hydraulic cylinders poses safety hazards, has low disassembly and assembly efficiency, and existing tools cannot complete the work independently, resulting in high labor intensity and significant safety risks.

Method used

A hydraulic cylinder repair, disassembly, and assembly device balance vehicle was designed, including a base plate, a fixing component one, and a fixing component two. It utilizes a drive component, turntable, slot, clamping mechanism, positioning mechanism, and other structures to achieve automated fixing and disassembly of cylinder liners and piston rods.

Benefits of technology

It enables automated fixing and disassembly of cylinder liners and piston rods, improving work efficiency, reducing labor intensity, minimizing safety hazards, and enhancing both safety and work efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117359542B_ABST
    Figure CN117359542B_ABST
Patent Text Reader

Abstract

The present application relates to the technical field of mine exploitation equipment, and discloses a hydraulic oil cylinder maintenance disassembly and assembly device balance car, which comprises a base plate, a first fixing assembly and a second fixing assembly arranged on the base plate, two mounting plates slidingly arranged on the base plate, and a driving assembly arranged on the base plate to make the two mounting plates close to or away from each other. The first fixing assembly is used for fixing a cylinder sleeve and comprises two vertical plates, at least two rotating discs and a rotating shaft. The two vertical plates are vertically fixed on one of the mounting plates, and the rotating shaft is rotatably arranged between the two vertical plates. A motor is arranged on one of the vertical plates to drive the rotating shaft to rotate. The rotating disc is coaxially sleeved on the rotating shaft, and a plurality of clamping grooves for fixing the cylinder sleeve are circumferentially arranged on the rotating disc. A clamping mechanism corresponding to the clamping grooves is further arranged on the rotating disc. The present application can automatically work, quickly feed, effectively fix the cylinder sleeve and the piston rod, and facilitate the disassembly work, thereby effectively improving the work efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of mining equipment technology, and in particular to a hydraulic cylinder repair, disassembly and assembly device balancer. Background Technology

[0002] Large hydraulic cylinders require frequent routine maintenance. Due to their weight and size, hydraulic cylinders are inefficient to operate. Furthermore, disassembly and assembly require manual labor or equipment, posing safety hazards such as pressure and oil splashes, injuries from falling objects, or serious injuries from slippage. This invention, a hydraulic cylinder disassembly and assembly machine, can meet the needs of disassembling and assembling large, medium, and small hydraulic cylinders. Currently, the disassembly and assembly of hydraulic cylinders in large engineering equipment in China is done manually or with the assistance of forklifts and other mechanical equipment. The use of a hydraulic cylinder disassembly and assembly machine poses significant safety risks, including direct contact with personnel, potential oil splashes, slippage injuries, or injuries from metal objects during skid-mounted assembly. The weight of some components can cause significant physical injury, and secondary damage can easily occur during maintenance, reducing the cylinder's lifespan and original performance. Currently, there is no tool in China capable of autonomously performing this work, resulting in high labor intensity and significant safety hazards. Summary of the Invention

[0003] To address the technical problems mentioned in the background section, this invention provides a hydraulic cylinder repair, disassembly, and assembly device balancing vehicle.

[0004] The present invention is achieved by the following technical solution: a hydraulic cylinder repair, disassembly and assembly device balance vehicle, including a base plate, a fixing component one and a fixing component two disposed on the base plate;

[0005] Two mounting plates are slidably mounted on the substrate, and a driving assembly is provided on the substrate to make the two mounting plates move closer or further apart.

[0006] The first fixing component is used to fix the cylinder liner. The first fixing component includes two vertical plates, at least two turntables, and a rotating shaft. The two vertical plates are vertically fixed to one of the mounting plates. The rotating shaft is rotatably installed between the two vertical plates. One of the vertical plates is equipped with a motor that drives the rotating shaft to rotate. The turntables are coaxially sleeved on the rotating shaft. The turntables have several slots distributed circumferentially for fixing the cylinder liner. The turntables are also equipped with clamping mechanisms corresponding to the slots.

[0007] The second fixing component includes a support frame and a positioning mechanism fixed to the top of the support frame. The bottom end of the support frame is connected to another mounting plate, and the positioning mechanism is used to fix it at the through hole at the end of the piston rod.

[0008] As a further improvement to the above solution, there are two turntables, and the cylinder liner can be snapped into the slots at the same position on the two turntables. The clamping mechanism includes a rib plate, one end of which is rotatably connected to the turntable. By rotating the rib plate, the cylinder liner can be fixed in the slot.

[0009] The above solution can effectively fix the cylinder liner, and the rotation of the rib plate makes operation quick. At the same time, during operation, the slots on the turntable can install cylinder liners of multiple cylinders, allowing multiple cylinders to be operated sequentially after installation on one side, thus improving work efficiency.

[0010] As a further improvement to the above scheme, the ribs at the same position on the two turntables are fixedly sleeved on a connecting rod, which moves through the two turntables. One of the turntables is equipped with a drive motor that drives the connecting rod to rotate.

[0011] When the drive motor rotates the connecting rod, it can also rotate the ribs on the connecting rod, thereby effectively fixing the cylinder liner.

[0012] As a further improvement to the above solution, an adjacent fixed component is provided with a worktable, one side of which is a ramp, and the top of the worktable is provided with an auxiliary mechanism for the cylinder liner to enter the slot, and the cylinder liner can quickly reach the top surface of the worktable along the ramp.

[0013] The ramp allows the cylinder liner to be moved to the top of the worktable with less effort. By moving the auxiliary mechanism on the worktable, the cylinder can be automatically pushed into the slot on the turntable.

[0014] As a further improvement to the above solution, the top surface of the workbench is provided with an installation groove, and strip grooves are provided on both sides of the installation groove. A slider is slidably installed in each of the two strip grooves. A flip plate is movably installed in the installation groove. The two sides of the flip plate are rotatably connected by a connecting shaft and two sliders respectively. The side of the workbench is also provided with a power mechanism to drive the connecting shaft to rotate, and a driving component to drive the slider to slide is provided in the strip groove.

[0015] The power mechanism drives the tilting plate to rotate, which in turn pushes the cylinder liner to roll into the slot. Then, the drive component pushes the tilting plate to move, which can more stably and smoothly allow the cylinder liner to enter the slot.

[0016] As a further improvement to the above solution, the power mechanism includes a servo motor and a motor bracket. The servo motor is driven and connected to one of the connecting shafts. One end of the motor bracket is connected to the servo motor, and the other end of the motor bracket is slidably connected to the side of the worktable.

[0017] The above structure facilitates the movement of the flip plate, is simple in structure, and operates stably and reliably.

[0018] As a further improvement to the above solution, the positioning mechanism includes a second motor, a rotating plate, two side plates, and a pin. The second motor is mounted on the top of the support frame, and the output shaft of the second motor is connected to the rotating plate. The two side plates are arranged in parallel and connected to both ends of the rotating plate. The pin is mounted on the brackets of the two side plates and is used to pass through the through hole at the end of the piston rod.

[0019] In the above structure, the pin passes through the through hole at the end of the piston rod. Since the positioning mechanism can pull the piston rod away from the cylinder liner, the piston rod and the cylinder liner are separated, thus completing the disassembly.

[0020] As a further improvement to the above scheme, the pin is provided in two sets and is connected to two side plates respectively. The pin includes a movable sleeve and a central rod. One end of the central rod is connected to the side plate, and one end of the movable sleeve is movably fitted onto the other end of the central rod. A magnet is installed on the inner wall of the movable sleeve, and a magnet is installed on the inner end of the central rod. The magnets are magnetically attracted or repelled.

[0021] When magnet one and magnet two repel each other, they push the two movable sleeves closer together. Since the outer diameter of the two movable sleeves is slightly smaller than the diameter of the through hole at the end of the piston rod, the movable sleeves can pass through, which facilitates the movement of the piston rod and enables automated operation, improving work safety.

[0022] As a further improvement to the above solution, the movable sleeve housing is provided with an installation cavity, and several sliding grooves are distributed circumferentially on the outer surface of the movable sleeve. Each sliding groove is slidably connected to a limit plate. Several sliding grooves are provided on the inner wall of the movable sleeve, and each sliding groove is slidably connected to a connecting rod.

[0023] The mounting cavity is equipped with a linkage mechanism. One end of the connecting rod is connected to the linkage mechanism to drive the linkage mechanism to move the limiting plate at one of the slides along the slide. Both slides are opened along the length of the movable sleeve.

[0024] The movement of the movable sleeve causes the linkage mechanism to move the limiting plate, which in turn clamps the limiting plates on both sides of the piston rod end. This ensures that the piston rod moves along a fixed path when the entire pin moves, making disassembly more convenient.

[0025] As a further improvement to the above scheme, the linkage mechanism includes a transmission gear, a first gear plate, and a second gear plate. The first gear plate is connected to the limiting plate, the second gear plate is connected to the connecting rod, the first gear plate and the second gear plate are arranged in parallel, and the transmission gear is rotatably installed between the first gear plate and the second gear plate and meshes with them.

[0026] With the above structure, the limiting plate can be slid while the movable sleeve moves. When the movable sleeve passes through the through hole, the limiting plate can contact the surface of the piston rod to complete the positioning.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] The present invention proposes a hydraulic cylinder repair, disassembly, and assembly device balance vehicle, comprising a base plate, a fixing component one and a fixing component two disposed on the base plate; two mounting plates are slidably mounted on the base plate, and a driving component is provided on the base plate to make the two mounting plates approach or move away from each other; the fixing component one is used to fix the cylinder liner, and the fixing component one includes two vertical plates, at least two turntables, and a rotating shaft, wherein the two vertical plates are vertically fixed to one of the mounting plates, the rotating shaft is rotatably mounted between the two vertical plates, one of the vertical plates is equipped with a motor one for driving the rotating shaft to rotate, the turntables are coaxially sleeved on the rotating shaft, and the turntables are circumferentially distributed with a plurality of slots for fixing the cylinder liner, and the turntables are also equipped with clamping mechanisms corresponding to the slots.

[0029] The present invention, through the above-described structure, enables automated operation, rapid material feeding, and effective fixation of the cylinder liner and piston rod, facilitating disassembly and improving work efficiency. Attached Figure Description

[0030] Figure 1 This is an isoperimeter diagram of the balancing vehicle of the disassembly and assembly device proposed in this invention;

[0031] Figure 2 This is a three-dimensional structural diagram of the self-balancing vehicle with the disassembly and assembly device proposed in this invention.

[0032] Figure 3 This is a side view of the self-balancing vehicle with the disassembly and assembly device proposed in this invention.

[0033] Figure 4 For the present invention Figure 2 Enlarged view of point A in the image;

[0034] Figure 5 This is a schematic diagram of the pin structure proposed in this invention;

[0035] Figure 6 The present invention proposes Figure 5 Enlarged view of section B in the middle.

[0036] Explanation of key symbols:

[0037] In the diagram: Base plate 1, Mounting plate 2, Lead screw 1 301, Lead screw 2 302, End plate 4, Slot 5, Rotating shaft 6, Motor 1 7, Turntable 8, Cylinder liner 9, Rib plate 10, Vertical plate 11, Flipping plate 12, Worktable 13, Inclined ramp 1301, Piston rod 14, Pin rod 15, Movable sleeve 1501, Center rod 1502, Side plate 16, Rotating plate 17, Motor 2 18, Smooth rod 19, Support frame 20, Motor 3 21, Motor 4 22, Connecting rod 23, Connecting shaft 24, Mounting groove 25, Strip groove 26, Driving component 27, Slider 28, Limiting plate 29, Magnet 1 30, Magnet 2 31, Transmission gear 32, Gear plate 1 33, Gear plate 2 34, Slide groove 2 35, Servo motor 36, Motor bracket 37. Detailed Implementation

[0038] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0039] Example 1:

[0040] Reference Figure 1-6 The present solution proposes a hydraulic cylinder repair, disassembly and assembly device balance vehicle, which includes a base plate 1, a fixing component one and a fixing component two disposed on the base plate 1.

[0041] Two mounting plates 2 are slidably mounted on the substrate 1. A driving assembly is provided on the substrate 1 to bring the two mounting plates 2 closer together or further apart. The driving assembly includes two end plates 4 fixed on both sides of the substrate 1. A motor 4 22 is mounted on one end plate 4. A lead screw 302 is rotatably mounted between the two end plates 4. The lead screw 302 is connected to the output shaft of the motor 4 22. The two mounting plates 2 are respectively provided with threaded holes that are threadedly connected to the lead screw 302. The lead screw 302 is provided with two threaded sections with opposite helical directions, which facilitates bringing the two mounting plates 2 closer together or further apart.

[0042] The fixing assembly 1 is used to fix the cylinder liner 9. The fixing assembly 1 includes two vertical plates 11, at least two turntables 8, and a rotating shaft 6. The two vertical plates 11 are vertically fixed on one of the mounting plates 2. The rotating shaft 6 is rotatably mounted between the two vertical plates 11. One of the vertical plates 11 is equipped with a motor 7 that drives the rotating shaft 6 to rotate. The turntables 8 are coaxially sleeved on the rotating shaft 6, and the turntables 8 have several slots 5 distributed circumferentially for fixing the cylinder liner 9. The turntables 8 are also equipped with clamping mechanisms corresponding to the slots 5. The slots are large enough to facilitate the stable placement of the cylinder liner.

[0043] The second fixing component includes a support frame 20 and a positioning mechanism fixed to the top of the support frame 20. The bottom end of the support frame 20 is connected to another mounting plate 2. The positioning mechanism is used to fix it at the through hole at the end of the piston rod 14.

[0044] A guide hole and a threaded hole are provided at the bottom of the support frame 20. A smooth rod 19 parallel to the mounting plate 2 is passed through the guide hole. A lead screw 301 is screwed into the threaded hole. A motor 21 for driving the lead screw 301 to rotate is also provided on the mounting plate.

[0045] Two turntables 8 are provided, and the cylinder liner 9 can be snapped into the slots at the same position on the two turntables 8. The clamping mechanism includes a rib plate 10, one end of which is rotatably connected to the turntable 8. By rotating the rib plate 10, the cylinder liner 9 can be fixed in the slot 5. To improve the stability when fixing the cylinder liner, an anti-slip pad can be installed on the surface of the rib plate 10 to increase the clamping force and also to protect the cylinder liner from damage.

[0046] Ribs 10 at the same position on both turntables 8 are fixedly sleeved on a connecting rod 23. The connecting rod 23 moves through the two turntables 8. One of the turntables 8 is equipped with a drive motor (not shown) that drives the connecting rod 23 to rotate.

[0047] An adjacent fixed component is provided with a worktable 13. One side of the worktable 13 is a ramp 1301. The top of the worktable 13 is provided with an auxiliary mechanism for the cylinder liner 9 to enter the slot 5, and the cylinder liner 9 can quickly reach the top surface of the worktable 13 along the ramp 1301. The height of the top surface of the worktable 13 facilitates the rolling of the cylinder liner into the slot on the turntable.

[0048] The top surface of the workbench 13 has a mounting groove 25, and two strip grooves 26 are formed on opposite sides of the mounting groove 25. A slider 28 is slidably mounted in each of the two strip grooves 26. A flip plate 12 is movably mounted in the mounting groove 25. The two sides of the flip plate 12 are rotatably connected to the two sliders 28 via a connecting shaft 24. The side of the workbench 13 also has a power mechanism for driving the connecting shaft 24 to rotate. A driving component 27 for driving the sliders 28 to slide is provided in the strip grooves 26. The driving component 27 can be an electric push rod.

[0049] The power mechanism includes a servo motor 36 and a motor bracket 37. The servo motor 36 is driven and connected to one of the connecting shafts 24. One end of the motor bracket 37 is connected to the servo motor 36, and the other end of the motor bracket 37 is slidably connected to the side of the worktable 13. The motor bracket 37 and the side bracket of the worktable 13 are slidably connected by a slide rail.

[0050] Reference Figure 1The positioning mechanism in this solution includes a second motor 18, a rotating plate 17, two side plates 16, and a pin 15. The second motor 18 is installed on the top of the support frame 20, and the output shaft of the second motor 18 is connected to the rotating plate 17. The two side plates 16 are arranged in parallel and connected to both ends of the rotating plate 17. The pin 15 is installed on the bracket of the two side plates 16 and is used to pass through the through hole at the end of the piston rod 14.

[0051] As an optional embodiment of the present invention, the pin 15 is provided in two sets and is respectively connected to two side plates 16. The pin 15 includes a movable sleeve 1501 and a central rod 1502. One end of the central rod 1502 is connected to the side plate 16, and one end of the movable sleeve 1501 is movably sleeved on the other end of the central rod 1502. A magnet 30 is installed on the inner wall of the movable sleeve 1501, and a magnet 31 is installed on the inner end of the central rod 1502. The magnet 30 and the magnet 31 can magnetically attract or repel each other.

[0052] The movable sleeve 1501 has an installation cavity inside its housing. Several sliding grooves (not marked) are distributed circumferentially on the outer surface of the movable sleeve 1501. Each sliding groove is slidably connected to a limit plate 29. Several sliding grooves 35 are opened on the inner wall of the movable sleeve 1501. Each sliding groove 35 is slidably connected to a connecting rod (not marked).

[0053] In this design, a linkage mechanism is provided in the mounting cavity. One end of the connecting rod is connected to the linkage mechanism to drive the linkage mechanism to move the limiting plate 29 at one end of the slide groove along the slide groove. Both the slide groove 1 and the slide groove 2 35 are opened along the length direction of the movable sleeve 1501.

[0054] The linkage mechanism includes a transmission gear 32, a first gear plate 33, and a second gear plate 34. The first gear plate 33 is connected to the limiting plate 29, and the second gear plate 34 is connected to the connecting rod. The first gear plate 33 and the second gear plate 34 are arranged in parallel. The transmission gear 32 is rotatably installed between the first gear plate 33 and the second gear plate 34 and meshes with them.

[0055] During operation, the movable sleeve moves while the limiting plate slides. When the movable sleeve passes through the through hole, the limiting plate contacts the surface of the piston rod, thus completing the positioning.

[0056] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A hydraulic cylinder repair, disassembly, and assembly device balancing vehicle, characterized in that, Includes a substrate, a first fixing component and a second fixing component disposed on the substrate; Two mounting plates are slidably mounted on the substrate, and a driving assembly is provided on the substrate to make the two mounting plates move closer or further apart. The fixing component one is used to fix the cylinder liner. The fixing component one includes two vertical plates, at least two turntables, and a rotating shaft. The two vertical plates are vertically fixed to one of the mounting plates. The rotating shaft is rotatably installed between the two vertical plates. One of the vertical plates is equipped with a motor one that drives the rotating shaft to rotate. The turntables are coaxially sleeved on the rotating shaft. The turntables have several slots distributed circumferentially for fixing the cylinder liner. The turntables are also equipped with clamping mechanisms corresponding to the slots. The second fixing component includes a support frame and a positioning mechanism fixed to the top of the support frame. The bottom end of the support frame is connected to another mounting plate. The positioning mechanism is used to fix the piston rod at the through hole at the end of the piston rod. The positioning mechanism includes a second motor, a rotating plate, two side plates, and a pin. The second motor is installed on the top of the support frame, and the output shaft of the second motor is connected to the rotating plate. The two side plates are arranged in parallel and connected to both ends of the rotating plate. The pin is installed on the bracket of the two side plates and is used to pass through the through hole at the end of the piston rod. The pin is provided in two sets and is connected to two side plates respectively. The pin includes a movable sleeve and a central rod. One end of the central rod is connected to the side plate, and one end of the movable sleeve is movably sleeved on the other end of the central rod. A magnet is installed on the inner wall of the movable sleeve, and a magnet is installed on the inner end of the central rod. The magnets are magnetically attracted or repelled. The movable sleeve housing has an installation cavity inside. Several sliding grooves are distributed circumferentially on the outer surface of the movable sleeve. Each sliding groove is slidably connected to a limit plate. Several sliding grooves are opened on the inner wall of the movable sleeve. Each sliding groove is slidably connected to a connecting rod. The mounting cavity is equipped with a linkage mechanism. One end of the connecting rod is connected to the linkage mechanism to drive the linkage mechanism to move the limiting plate at one of the slide grooves along the slide groove one. Both the slide groove one and the slide groove two are opened along the length direction of the movable sleeve. The linkage mechanism includes a transmission gear, a first gear plate, and a second gear plate. The first gear plate is connected to a limiting plate, and the second gear plate is connected to a connecting rod. The first gear plate and the second gear plate are arranged in parallel. The transmission gear is rotatably installed between the first gear plate and the second gear plate and meshes with them.

2. The hydraulic cylinder repair, disassembly, and assembly device balancer as described in claim 1, characterized in that, The turntable is provided with two, and the cylinder liner can be locked into the slots at the same position on the two turntables. The locking mechanism includes a rib plate, one end of which is rotatably connected to the turntable. By rotating the rib plate, the cylinder liner can be fixed in the slot.

3. The hydraulic cylinder repair, disassembly, and assembly device balancer as described in claim 1, characterized in that, Ribs at the same position on both turntables are fixedly sleeved on a connecting rod, which moves through the two turntables. A drive motor that drives the connecting rod to rotate is installed on one of the turntables.

4. A hydraulic cylinder repair, disassembly, and assembly device balancer as described in claim 1, characterized in that, A workbench is provided adjacent to the fixed component. One side of the workbench is a slope, and the top of the workbench is provided with an auxiliary mechanism to help the cylinder liner enter the slot. The cylinder liner can quickly reach the top surface of the workbench along the slope.

5. A hydraulic cylinder repair, disassembly, and assembly device balancer as described in claim 4, characterized in that, The top surface of the workbench is provided with an installation groove, and strip grooves are provided on both sides of the installation groove. A slider is slidably installed in each of the two strip grooves. A flip plate is movably installed in the installation groove. The two sides of the flip plate are rotatably connected to the two sliders through a connecting shaft. The side of the workbench is also provided with a power mechanism to drive the connecting shaft to rotate. A driving component to drive the slider to slide is provided in the strip groove.

6. A hydraulic cylinder repair, disassembly, and assembly device balancer as described in claim 5, characterized in that, The power mechanism includes a servo motor and a motor bracket. The servo motor is driven and connected to one of the connecting shafts. One end of the motor bracket is connected to the servo motor, and the other end of the motor bracket is slidably connected to the side of the worktable.

Citation Information

Patent Citations

  • Solid shaft chamfering device

    CN110948051A

  • Dismouting device is used in hydro -cylinder maintenance

    CN208342716U