A hydraulic cylinder machining protection assembly

Abstract

The utility model discloses a kind of protective components for hydraulic oil cylinder processing, including first fixed plate and second fixed plate, first fixed plate and second fixed plate between fixed connection have connecting rod, the inside screw thread connection of first fixed plate has screw rod, one end of screw rod is rotatably connected with installation cylinder, inside installation cylinder, the other end fixed connection of screw rod has twist block, the inside of screw rod is equipped with sliding slot. Belong to hydraulic oil cylinder protection equipment technical field.The protective components for hydraulic oil cylinder processing, screw rod will be driven ratchet synchronous rotation by sliding slot and sliding block in the process of screw rod positive rotation, ratchet will extrude pawl, spring will drive pawl always keep engagement with ratchet using its own elasticity, to lock screw rod by ratchet and pawl, prevent screw rod from appearing reverse situation, since screw rod cannot reverse, can ensure that installation cylinder to hydraulic oil cylinder's pressure force, prevent screw rod from loosening, avoid the situation that hydraulic oil cylinder slides and shakes.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic cylinder protection equipment, and more specifically, to a protective component for hydraulic cylinder processing. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, performing linear reciprocating motion (or oscillating motion). It has a simple structure and reliable operation. When used to achieve reciprocating motion, it eliminates the need for a speed reduction device, eliminates transmission backlash, and provides smooth movement. Therefore, it is widely used in the hydraulic systems of various machines. The output force of a hydraulic cylinder is directly proportional to the effective area of ​​the piston and the pressure difference between its two sides. A hydraulic cylinder basically consists of a cylinder barrel and cylinder head, a piston and piston rod, a sealing device, a cushioning device, and a venting device.

[0003] Chinese patent publication CN202223427470.5, entitled "A Protective Component for Hydraulic Cylinder Machining," describes a protective component for hydraulic cylinder machining, comprising a first fixed plate and a second fixed plate. Several connecting rods are arranged between the first and second fixed plates. A screw is located in the middle of the second fixed plate, with a screw block at one end and a connecting shaft at the other end. A mounting cylinder is located at the end of the connecting shaft away from the screw. A mounting groove is located in the middle of the first fixed plate, and a hydraulic cylinder is installed between the mounting cylinder and the mounting groove. A buffer ring is located inside the mounting groove, and a buffer pad is located inside the mounting cylinder. Protective sleeves are provided on the outer walls of both the first and second fixed plates. Protective sleeves are also provided on the outer surfaces of the connecting rods. The screw and the second fixed plate are connected by threads, and the screw and the connecting shaft are rotatably connected. This protective component for hydraulic cylinder machining, through the arrangement of the first fixed plate, the second fixed plate, the connecting rods, the screw, the screw block, the connecting shaft, and the mounting cylinder... This protective assembly for hydraulic cylinders can fix and protect them from collisions and friction. However, it still has some problems. The core function of the screw in this hydraulic cylinder machining protective assembly is to drive the mounting cylinder to press against the hydraulic cylinder through a threaded connection with the second fixing plate, thus fixing the cylinder. However, it does not lock the screw. Hydraulic cylinder machining is usually accompanied by mechanical vibration (such as vibration from cutting and grinding). Long-term vibration can cause the screw to loosen. On the one hand, a loose screw will reduce the clamping force of the mounting cylinder on the cylinder, and the cylinder may shift during machining. This could lead to deviations in machining accuracy or even cylinder slippage, causing equipment collisions or safety hazards for operators. On the other hand, a loose screw may rotate with the vibration, causing the connecting shaft and mounting cylinder to shake, further aggravating the friction between the cylinder and the buffer ring and buffer pad, thus defeating the original design purpose of protecting the hydraulic cylinder. Therefore, we provide a protective assembly for hydraulic cylinder machining. Utility Model Content

[0004] The purpose of this utility model is to provide a protective component for machining hydraulic cylinders, so as to solve the problems mentioned in the background art above:

[0005] In some existing protective components for hydraulic cylinder machining, the core function of the screw is to drive the mounting cylinder to press the hydraulic cylinder through the threaded connection with the second fixing plate, thereby fixing the cylinder. However, the screw is not locked. During the machining of hydraulic cylinders, mechanical vibration is usually present, and long-term vibration can cause the screw to loosen.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A protective assembly for machining hydraulic cylinders includes a first fixed plate and a second fixed plate. A connecting rod is fixedly connected between the first and second fixed plates. A screw is threadedly connected to the inside of the first fixed plate. One end of the screw is rotatably connected to a mounting cylinder. Inside the mounting cylinder, the other end of the screw is fixedly connected to a screw block. Two symmetrically distributed sliding grooves are formed inside the screw. A slider is slidably connected inside each groove. Under the action of the grooves and sliders, the screw rotation drives a ratchet to rotate synchronously. The movement of the screw is not affected by the movement of the screw itself. A ratchet is fitted on the outside of the screw, and the ratchet is fixedly connected to the slider. A pawl is provided on one side of the ratchet, and a through groove is opened inside the pawl. A fixing block is slidably connected inside the through groove. The fixing block is fixedly connected to the first fixing plate and supports the pawl. Under the action of the through groove, the pawl can move back and forth outside the fixing block. When the pawl engages with the ratchet, it can lock the screw and prevent the screw from reversing, thereby ensuring the clamping force of the mounting cylinder on the hydraulic cylinder.

[0008] Preferably, the pawl has a T-shaped structure, which makes it easier for the user to push it, allowing the user to separate the pawl from the ratchet.

[0009] Preferably, a slide rod is slidably connected inside the fixed block, and the slide rod is fixedly connected to the pawl. A spring is sleeved on the outside of the slide rod between the through groove and the fixed block. The slide rod can limit the movement between the pawl and the fixed block, so that the pawl will not detach from the fixed block. At the same time, the spring is sleeved on the outside of the slide rod, and the elastic force of the spring can keep the pawl engaged with the ratchet.

[0010] Preferably, a rotating seat is fitted around the screw, and the rotating seat is fixedly connected to the ratchet. A fixed seat is fitted around the rotating seat, and the fixed seat is fixedly connected to the first fixed plate. The rotating seat and the fixed seat are rotatably connected. Both the rotating seat and the fixed seat are annular structures. The rotating seat has a T-shaped cross-section, and the fixed seat has a U-shaped cross-section. The fixed seat is fitted around the rotating seat, and the rotating seat can rotate inside the fixed seat. The ratchet is limited by the rotating seat and the fixed seat.

[0011] Preferably, a rod is slidably connected inside the pawl, and a baffle is sleeved on the outside of the rod and located between the pawl and the first fixed plate. The baffle is fixedly connected to the rod. An insertion hole is opened inside the first fixed plate. The baffle can prevent the rod from separating from the pawl from one side. The insertion hole works in conjunction with the rod. When the user rotates the screw forward by tightening the lever, the screw drives the mounting cylinder to approach the second fixed plate, thereby clamping and fixing the hydraulic cylinder between the mounting cylinder and the second fixed plate. During the process, the ratchet and pawl cooperate to lock the screw and prevent the screw from reversing, thereby ensuring the clamping force of the mounting cylinder on the hydraulic cylinder.

[0012] Preferably, the insertion rod has a U-shaped structure. The U-shaped structure makes it easier for the user to pull the rod. By pulling the insertion rod, the user separates it from the insertion hole on the first fixing plate, thereby releasing the limitation of the insertion rod and insertion hole on the pawl. At this time, the pawl engages with the ratchet. When the insertion rod and insertion hole limit the pawl, the pawl remains separated from the ratchet. At this time, the user can rotate the screw in any direction without being affected by the ratchet and pawl.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1) When this protective component for machining hydraulic cylinders is in use, during the forward rotation of the screw, the screw will drive the ratchet to rotate synchronously through the slide groove and slider. The ratchet will squeeze the pawl, and the squeezed pawl will move away from the ratchet. At the same time, the pawl will compress the spring. The spring will use its own elastic force to keep the pawl engaged with the ratchet, thereby locking the screw through the ratchet and pawl to prevent the screw from reversing. Since the screw cannot reverse, the clamping force of the mounting cylinder on the hydraulic cylinder can be ensured, preventing the screw from loosening and avoiding the hydraulic cylinder from slipping and shaking.

[0015] 2) When using this protective component for hydraulic cylinder machining, if the user needs to remove the hydraulic cylinder, simply pull the pawl until the insert rod is aligned with the insertion hole. Then, the user can gently push the insert rod to engage it with the insertion hole. The insert rod and insertion hole can limit the pawl after one pull, so that the pawl can always remain separated from the ratchet. This eliminates the need for the user to pull the pawl with one hand, improving ease of use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the screw of this utility model;

[0018] Figure 3 This is a schematic diagram of the screw structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the pawl structure of this utility model.

[0020] The following are the labels in the diagram: 1. First fixing plate; 2. Second fixing plate; 3. Connecting rod; 4. Screw; 5. Mounting cylinder; 6. Tightening block; 7. Slide groove; 8. Slider; 9. Ratchet; 10. Pawl; 11. Through groove; 12. Fixing block; 13. Slide rod; 14. Spring; 15. Rotating seat; 16. Fixing seat; 17. Insert rod; 18. Baffle; 19. Insertion hole. Detailed Implementation

[0021] Example 1

[0022] In some existing protective components for hydraulic cylinder machining, the core function of the screw is to drive the mounting cylinder to press the hydraulic cylinder through the threaded connection with the second fixing plate, thereby fixing the cylinder. However, the screw is not locked. During the machining of hydraulic cylinders, mechanical vibration is usually present, and long-term vibration can cause the screw to loosen.

[0023] Please see Figures 1 to 4A protective assembly for machining hydraulic cylinders includes a first fixing plate 1 and a second fixing plate 2. A connecting rod 3 is fixedly connected between the first fixing plate 1 and the second fixing plate 2. A screw 4 is threadedly connected inside the first fixing plate 1. One end of the screw 4 is rotatably connected to an mounting cylinder 5. Protective sleeves are provided inside the mounting cylinder 5, on the first fixing plate 1, the second fixing plate 2, and the outside of the connecting rod 3 for protecting the hydraulic cylinder. A screw block 6 is fixedly connected to the other end of the screw 4. Two sliding grooves 7 are symmetrically distributed inside the screw 4. A slider 8 is slidably connected inside the sliding grooves 7. Under the action of the sliding grooves 7 and the slider 8, the screw 4 rotates... When in motion, it can drive the ratchet 9 to rotate synchronously without affecting the movement of the screw 4 itself. The screw 4 is fitted with a ratchet 9, which is fixedly connected to the slider 8. A pawl 10 is provided on one side of the ratchet 9. A through groove 11 is opened inside the pawl 10. A fixing block 12 is slidably connected inside the through groove 11. The fixing block 12 is fixedly connected to the first fixing plate 1. The fixing block 12 supports the pawl 10. Under the action of the through groove 11, the pawl 10 can move back and forth outside the fixing block 12. When the pawl 10 engages with the ratchet 9, it can lock the screw 4 to prevent the screw 4 from reversing, thereby ensuring the clamping force of the mounting cylinder 5 on the hydraulic cylinder.

[0024] Furthermore, the pawl 10 has a T-shaped structure, which makes it easier for the user to push it. By pushing the pawl 10 to separate it from the ratchet 9, the user can release the lock of the pawl 10 and the ratchet 9 on the screw 4.

[0025] Furthermore, a slide rod 13 is slidably connected inside the fixing block 12. The slide rod 13 is fixedly connected to the pawl 10. A spring 14 is sleeved on the outside of the slide rod 13 and located between the through groove 11 and the fixing block 12. The slide rod 13 can limit the pawl 10 and the fixing block 12, so that the pawl 10 will not disengage from the fixing block 12. At the same time, the spring 14 is sleeved on the outside of the slide rod 13. The elastic force of the spring 14 can keep the pawl 10 engaged with the ratchet 9, thereby locking the screw 4 through the ratchet 9 and the pawl 10 to prevent the screw 4 from reversing.

[0026] Furthermore, a rotating seat 15 is fitted around the screw 4, and the rotating seat 15 is fixedly connected to the ratchet 9. A fixed seat 16 is fitted around the rotating seat 15, and the fixed seat 16 is fixedly connected to the first fixed plate 1. The rotating seat 15 and the fixed seat 16 are rotatably connected. The rotating seat 15 and the fixed seat 16 are both annular structures. The rotating seat 15 has a T-shaped cross-section, and the fixed seat 16 has a U-shaped cross-section. The fixed seat 16 is fitted around the rotating seat 15, and the rotating seat 15 can rotate inside the fixed seat 16. At the same time, the rotating seat 15 and the fixed seat 16 fit tightly together. Finally, the rotating seat 15 and the fixed seat 16 limit the ratchet 9, allowing it to rotate smoothly.

[0027] The steps for using this utility model are as follows: When using this protective component for hydraulic cylinder processing, place the hydraulic cylinder to be protected between the first fixed plate 1 and the second fixed plate 2. Then, rotate the screw 4 forward by tightening the screw block 6. At this time, the screw 4 will drive the mounting cylinder 5 to approach the hydraulic cylinder until the mounting cylinder 5 presses the hydraulic cylinder tightly. During the forward rotation of the screw 4, the screw 4 will drive the ratchet 9 to rotate synchronously through the sliding groove 7 and the slider 8. When the ratchet 9 rotates forward, it will squeeze the pawl 10 on one side. The squeezed pawl 10 will move away from the ratchet 9. At the same time, the pawl 10 will compress the spring 14. The compressed spring 14 will use its own elasticity to drive the pawl 10 to always keep it engaged with the ratchet 9. Thus, the screw 4 is locked by the ratchet 9 and the pawl 10, preventing the screw 4 from reversing. Since the screw 4 cannot reverse, the clamping force of the mounting cylinder 5 on the hydraulic cylinder can be ensured, preventing the screw 4 from loosening and avoiding the hydraulic cylinder from slipping and shaking.

[0028] Example 2

[0029] When the user needs to remove the hydraulic cylinder, the screw 4 needs to be rotated in the reverse direction. However, due to the elastic force of the spring 14, the pawl 10 is always automatically engaged with the ratchet 9. Therefore, when rotating the screw 4 in the reverse direction, the user needs to pull the pawl 10 to keep it separated from the ratchet 9. In order to prevent the user from constantly pulling the pawl 10 and improve the convenience of use, the following solution is adopted to solve this problem.

[0030] Please see Figures 1 to 4 Based on implementation 1, the difference in this embodiment is that the pawl 10 is internally slidably connected to a rod 17, and a baffle 18 is sleeved on the outside of the rod 17 and located between the pawl 10 and the first fixed plate 1. The baffle 18 is fixedly connected to the rod 17. The first fixed plate 1 has an insertion hole 19 inside, which works in conjunction with the rod 17. When the user rotates the screw 4 forward using the screw block 6, the screw 4 drives the mounting cylinder 5 to approach the second fixed plate 2, thereby clamping and fixing the hydraulic cylinder between the mounting cylinder 5 and the second fixed plate 2. During the process, the ratchet 9 and the pawl 10 cooperate to lock the screw 4, preventing the screw 4 from reversing, thereby ensuring the clamping force of the mounting cylinder 5 on the hydraulic cylinder. When the user needs to remove the hydraulic cylinder, the pawl 10 can be positioned after being pulled once by the rod 17 and the insertion hole 19.

[0031] Furthermore, the insertion rod 17 has a U-shaped structure, which makes it easier for the user to pull it. By pulling the insertion rod 17, the user can separate it from the insertion hole 19 on the first fixing plate 1, thereby releasing the limitation of the insertion rod 17 and the insertion hole 19 on the pawl 10. At this time, the pawl 10 is engaged with the ratchet 9. When the insertion rod 17 and the insertion hole 19 limit the pawl 10, the pawl 10 remains separated from the ratchet 9. At this time, the user can rotate the screw 4 in any direction without being affected by the ratchet 9 and the pawl 10. At the same time, the U-shaped insertion rod 17, together with the two insertion holes 19, has strong overall positioning stability, and the bidirectional contact can avoid the problem of the single-end insertion rod 17 being easy to loosen.

[0032] The steps for using this utility model are as follows: When using this protective component for hydraulic cylinder processing, if the user needs to remove the hydraulic cylinder, the pawl 10 must first be separated from the ratchet 9. The user can then pull the pawl 10 directly. During the pulling process, the pawl 10 will move along with the insertion rod 17 until the insertion rod 17 is aligned with the insertion hole 19. At this point, the user can gently push the insertion rod 17 to engage with the insertion hole 19. The insertion rod 17 and the insertion hole 19 can limit the pawl 10 after one pull, so that the pawl 10 can always remain separated from the ratchet 9. This eliminates the need for the user to pull the pawl 10 with one hand, improving the convenience of use. After removing the hydraulic cylinder, simply pull the insertion rod 17 to separate it from the insertion hole 19.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A protective assembly for machining a hydraulic cylinder, comprising a first fixing plate (1) and a second fixing plate (2), wherein a connecting rod (3) is fixedly connected between the first fixing plate (1) and the second fixing plate (2), a screw (4) is threadedly connected to the inside of the first fixing plate (1), one end of the screw (4) is rotatably connected to an mounting cylinder (5), and the other end of the screw (4) is fixedly connected to a screw block (6), characterized in that: The screw (4) has a sliding groove (7) inside. There are two sliding grooves (7) in total, and the two sliding grooves (7) are symmetrically distributed. A slider (8) is slidably connected inside the sliding groove (7). A ratchet (9) is sleeved on the outside of the screw (4). The ratchet (9) is fixedly connected to the slider (8). A pawl (10) is provided on one side of the ratchet (9). A through groove (11) is opened inside the pawl (10). A fixing block (12) is slidably connected inside the through groove (11). The fixing block (12) is fixedly connected to the first fixing plate (1).

2. The protective assembly for machining a hydraulic cylinder according to claim 1, characterized in that: The pawl (10) has a T-shaped structure.

3. A protective assembly for machining hydraulic cylinders according to claim 1, characterized in that: The fixed block (12) is internally slidably connected to a slide rod (13), which is fixedly connected to a pawl (10). A spring (14) is sleeved on the outside of the slide rod (13) between the through groove (11) and the fixed block (12).

4. A protective assembly for machining hydraulic cylinders according to claim 1, characterized in that: The screw (4) is fitted with a rotating seat (15), which is fixedly connected to the ratchet (9). The rotating seat (15) is fitted with a fixed seat (16), which is fixedly connected to the first fixed plate (1). The rotating seat (15) and the fixed seat (16) are rotatably connected.

5. A protective assembly for machining hydraulic cylinders according to claim 1, characterized in that: The pawl (10) is slidably connected to the inside of the insert rod (17). A baffle (18) is sleeved on the outside of the insert rod (17) and between the pawl (10) and the first fixing plate (1). The baffle (18) is fixedly connected to the insert rod (17). The first fixing plate (1) has an insertion hole (19) inside, which is used in conjunction with the insert rod (17).

6. A protective assembly for machining hydraulic cylinders according to claim 5, characterized in that: The insertion rod (17) has a U-shaped structure.

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