Buffering device of hydraulic oil cylinder

Abstract

The utility model discloses a hydraulic oil cylinder buffering device which comprises a hydraulic cylinder, a piston rod is arranged on the hydraulic cylinder, a buffering mechanism is arranged outside the hydraulic cylinder, a guide mechanism is arranged on the buffering mechanism, and the buffering mechanism comprises two first fixing seats and two second fixing seats. The tops of the two first fixing seats are fixedly connected with fixing sleeves, and the two second fixing seats are fixedly connected with synchronous rods. According to the hydraulic oil cylinder buffering device, the first fixing base is fixed to the hydraulic cylinder, the second fixing base is fixed to the piston rod, and then the movable rod is fixed in the fixing ring, so that the movable rod and the piston rod move synchronously, the movable rod is driven to move when the piston rod moves, and the buffering spring is used for achieving the buffering effect; and the rotating head is rotated to adjust the buffering effect of the buffering spring, external installation is convenient for overhauling, and the convenience of overhauling is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to a hydraulic cylinder buffer device. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or oscillating motion). It has a simple structure and reliable operation. In the existing technology, a buffer device is installed inside the hydraulic cylinder to play a buffering role. However, each time maintenance is carried out, the entire cylinder needs to be disassembled and reassembled, which makes maintenance inconvenience less than ideal.

[0003] For example, patent publication number CN219994050U specifically describes a buffer device for a hydraulic cylinder, including a first oil reservoir, a hydraulic cylinder, a second oil reservoir, a conveying pipe, a buffer mechanism, and a discharge mechanism. The first oil reservoir is located inside the hydraulic cylinder, and the second oil reservoir is located inside the hydraulic cylinder and on one side of the first oil reservoir. The first and second oil reservoirs are connected by a conveying pipe. The buffer mechanism is located inside the second oil reservoir. The beneficial effect of this utility model is that, in the field of hydraulic cylinder technology, by setting a buffer mechanism, when the moving rod inside the hydraulic cylinder extends and retracts, it can play an important buffering role, thereby avoiding damage to the inner wall of the hydraulic cylinder. At the same time, the external protection component can protect the outside of the hydraulic cylinder, thereby preventing it from being unusable due to external impact, greatly improving the protection of the equipment and facilitating practical application and operation. However, there is a problem that the entire cylinder needs to be disassembled and reassembled every time maintenance is performed, making maintenance inconvenient. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a hydraulic cylinder buffer device, which solves the problem that the entire cylinder needs to be disassembled and reassembled each time maintenance is performed, making maintenance less convenient.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a hydraulic cylinder buffer device, including a hydraulic cylinder, a piston rod provided on the hydraulic cylinder, a buffer mechanism provided outside the hydraulic cylinder, and a guide mechanism provided on the buffer mechanism;

[0006] The buffer mechanism includes two first fixed seats and two second fixed seats. A fixed sleeve is fixedly connected to the top of each of the two first fixed seats. A synchronizing rod is fixedly connected to each of the two second fixed seats. A fixed ring is fixedly connected to the end of each of the synchronizing rods. A movable rod is slidably connected inside the fixed sleeve. A movable block is fixedly connected to the bottom end of the movable rod. Limiting plates are fixedly connected to the top and bottom of the inner side of the fixed sleeve. A contact plate and a buffer plate are respectively provided on both sides of the limiting plate. Multiple connecting rods are fixedly connected between the buffer plate and the contact plate. A buffer spring is provided on one side of the buffer plate. An adjusting plate is provided on one side of the buffer spring. A guide block is fixedly connected to the adjusting plate. An internally threaded sleeve is fixedly connected to the end of the adjusting plate. An adjusting screw is threadedly connected inside the internally threaded sleeve. A rotating head is fixedly connected to the end of the adjusting screw.

[0007] Preferably, the two first fixed seats are fixedly mounted on the hydraulic cylinder by a first bolt and a first nut, and the two second fixed seats are fixedly mounted on the piston rod by a second bolt and a second nut, so that the first fixed seats and the second fixed seats can be easily installed and fixed.

[0008] Preferably, the fixed ring matches the movable rod, and the fixed ring is detachably connected to the movable rod by a third bolt, so that the fixed ring and the movable rod can be fixed, thereby making the movable rod and the piston rod move synchronously.

[0009] Preferably, the two limiting plates are respectively disposed at the top and bottom of the inner side of the fixed sleeve, and the limiting plates are fixedly connected to the inner wall of the fixed sleeve, so that the limiting plates can limit the movement of the buffer plate.

[0010] Preferably, the plurality of connecting rods are disposed through the limiting plate, and the buffer plate and the contact plate are slidably connected to the limiting plate through the connecting rods, so as to guide the movement of the contact plate and the buffer plate.

[0011] Preferably, the adjusting screw is rotatably connected to the inner wall of the fixed sleeve, and both rotating heads are provided with internal hexagonal grooves to facilitate rotation of the rotating heads.

[0012] Preferably, the guiding mechanism includes two guide seats, each with a connecting block fixedly connected to both ends. A connecting bolt and a connecting nut are provided between two adjacent connecting blocks. The two guide seats are fixedly installed on the hydraulic cylinder by the connecting bolt and the connecting nut. Each of the two guide seats has a guide hole, which matches the movable rod to guide the movement of the movable rod.

[0013] This utility model provides a hydraulic cylinder buffer device. Compared with the prior art, it has the following advantages:

[0014] 1. This hydraulic cylinder buffer device fixes the first fixed seat to the hydraulic cylinder, the second fixed seat to the piston rod, and the movable rod to the fixed ring, so that the movable rod and the piston rod move synchronously. When the piston rod moves, it drives the movable rod to move, and the buffer spring plays a buffering role. The buffering effect of the buffer spring can be adjusted by rotating the rotating head. The external installation makes it convenient for maintenance and improves the convenience of maintenance.

[0015] 2. This hydraulic cylinder buffer device aligns the connecting blocks and then fixes them with connecting bolts and nuts. The guide seat is then installed on the hydraulic cylinder, allowing the movable rod to pass through the guide hole. The guide hole guides the movement of the movable rod, thus improving stability. 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 schematic diagram of the buffer mechanism structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of the fixing sleeve of this utility model.

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

[0020] In the diagram: 1. Hydraulic cylinder; 2. Buffer mechanism; 201. First fixed seat; 202. Fixed sleeve; 203. Second fixed seat; 204. Synchronizing rod; 205. Fixed ring; 206. Movable rod; 207. Movable block; 208. Limiting plate; 209. Connecting rod; 210. Contact plate; 211. Buffer plate; 212. Adjusting plate; 213. Buffer spring; 214. Guide block; 215. Internal threaded sleeve; 216. Adjusting screw; 217. Rotating head; 3. Piston rod; 4. Guide mechanism; 401. Guide seat; 402. Connecting block; 403. Connecting bolt; 404. Guide hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-3This utility model provides a technical solution: a hydraulic cylinder buffer device, including a hydraulic cylinder 1, a piston rod 3 on the hydraulic cylinder 1, a buffer mechanism 2 on the outside of the hydraulic cylinder 1, and a guide mechanism 4 on the buffer mechanism 2;

[0023] The buffer mechanism 2 includes two first fixed seats 201 and two second fixed seats 203. The two first fixed seats 201 are fixedly mounted on the hydraulic cylinder 1 by first bolts and first nuts. The two second fixed seats 203 are fixedly mounted on the piston rod 3 by second bolts and second nuts, which facilitates the installation and fixing of the first fixed seats 201 and the second fixed seats 203. A fixing sleeve 202 is fixedly connected to the top of each of the two first fixed seats 201. A synchronizing rod 204 is fixedly connected to each of the two second fixed seats 203. 04. Each end is fixedly connected with a fixing ring 205. A movable rod 206 is slidably connected inside the fixing sleeve 202. The fixing ring 205 matches the movable rod 206. The fixing ring 205 is detachably connected to the movable rod 206 by a third bolt, so that the fixing ring 205 and the movable rod 206 can be fixed, thereby making the movable rod 206 move synchronously with the piston rod 3. A movable block 207 is fixedly connected to the bottom end of the movable rod 206. Limiting plates 208 are fixedly connected to the top and bottom of the inner side of the fixing sleeve 202. Contact plates 2 are respectively provided on both sides of the limiting plate 208. 10 and buffer plate 211, two limiting plates 208 are respectively set at the top and bottom of the inner side of the fixed sleeve 202, and the limiting plates 208 are fixedly connected to the inner wall of the fixed sleeve 202, so that the limiting plates 208 can limit the movement of the buffer plate 211. Multiple connecting rods 209 are fixedly connected between the buffer plate 211 and the contact plate 210, and the multiple connecting rods 209 are through the limiting plates 208. The buffer plate 211 and the contact plate 210 are slidably connected to the limiting plates 208 through the connecting rods 209, so that the contact plate 210 and the buffer plate 211 can be slidably connected. The movement of 11 serves as a guide. A buffer spring 213 is provided on one side of the buffer plate 211, and an adjusting plate 212 is provided on one side of the buffer spring 213. A guide block 214 is fixedly connected to the adjusting plate 212, and an internal threaded sleeve 215 is fixedly connected to the end of the adjusting plate 212. An adjusting screw 216 is threadedly connected inside the internal threaded sleeve 215, and a rotating head 217 is fixedly connected to the end of the adjusting screw 216. The adjusting screw 216 is rotatably connected to the inner wall of the fixed sleeve 202. Both rotating heads 217 are provided with internal hexagonal grooves, which can facilitate the rotation of the rotating heads 217.

[0024] Please see Figure 1 and Figure 4The guiding mechanism 4 includes two guide seats 401, each with a connecting block 402 fixedly connected to both ends. A connecting bolt 403 and a connecting nut are provided between adjacent connecting blocks 402. The two guide seats 401 are fixedly mounted on the hydraulic cylinder 1 by the connecting bolt 403 and the connecting nut. Each guide seat 401 has a guide hole 404, which matches the movable rod 206. By aligning the connecting blocks 402 and then fixing the connecting blocks 402 with the connecting bolt 403 and the connecting nut, the guide seat 401 is mounted on the hydraulic cylinder 1, allowing the movable rod 206 to pass through the guide hole 404. The guide hole 404 guides the movement of the movable rod 206, improving stability.

[0025] During operation, the first fixed seat 201 is fixed to the hydraulic cylinder 1, and the second fixed seat 203 is fixed to the piston rod 3. Then, the movable rod 206 is fixed in the fixed ring 205, so that the movable rod 206 moves synchronously with the piston rod 3. When the piston rod 3 moves, it drives the movable rod 206 to move. The movement of the movable rod 206 drives the movable block 207 to move. When the movable block 207 moves to both ends of the fixed sleeve 202, the movable block 207 contacts the contact plate 210 and drives it to move. The movement of the contact plate 210 drives the connecting rod 209 to move. The movement of the 09 mechanism causes the buffer plate 211 to move, which in turn applies pressure to the buffer spring 213, allowing the buffer spring 213 to provide a buffering effect. Simultaneously, the rotation of the rotating head 217 causes the adjusting screw 216 to rotate, which in turn causes the internal threaded sleeve 215 to move. This movement of the internal threaded sleeve 215 then moves the adjusting plate 212, which adjusts the buffering effect of the buffer spring 213. This improves the flexibility of use and facilitates maintenance due to its external installation.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. Hydraulic cylinder damping device comprising a hydraulic cylinder (1), characterized in that: The hydraulic cylinder (1) is provided with a piston rod (3), and the hydraulic cylinder (1) is provided with a buffer mechanism (2) on the outside, and the buffer mechanism (2) is provided with a guide mechanism (4). The buffer mechanism (2) includes two first fixed seats (201) and two second fixed seats (203). A fixed sleeve (202) is fixedly connected to the top of each of the two first fixed seats (201). A synchronizing rod (204) is fixedly connected to each of the two second fixed seats (203). A fixing ring (205) is fixedly connected to the end of each of the two synchronizing rods (204). A movable rod (206) is slidably connected inside the fixed sleeve (202). A movable block (207) is fixedly connected to the bottom end of the movable rod (206). Limiting plates (208) are fixedly connected to the top and bottom of the inner side of the fixed sleeve (202). 08) A contact plate (210) and a buffer plate (211) are respectively provided on both sides. Multiple connecting rods (209) are fixedly connected between the buffer plate (211) and the contact plate (210). A buffer spring (213) is provided on one side of the buffer plate (211). An adjusting plate (212) is provided on one side of the buffer spring (213). A guide block (214) is fixedly connected on the adjusting plate (212). An internal threaded sleeve (215) is fixedly connected to the end of the adjusting plate (212). An adjusting screw (216) is threaded inside the internal threaded sleeve (215). A rotating head (217) is fixedly connected to the end of the adjusting screw (216).

2. The hydraulic cylinder cushioning device of claim 1, wherein: The two first fixed seats (201) are fixedly mounted on the hydraulic cylinder (1) by the first bolt and the first nut, and the two second fixed seats (203) are fixedly mounted on the piston rod (3) by the second bolt and the second nut.

3. The hydraulic cylinder cushioning device of claim 1, wherein: The fixed ring (205) is matched with the movable rod (206), and the fixed ring (205) is detachably connected to the movable rod (206) by a third bolt.

4. The hydraulic cylinder cushioning device of claim 1, wherein: The two limiting plates (208) are respectively disposed on the top and bottom of the inner side of the fixed sleeve (202), and the limiting plates (208) are fixedly connected to the inner wall of the fixed sleeve (202).

5. The hydraulic cylinder cushioning device of claim 1, wherein: Multiple connecting rods (209) are disposed through the limiting plate (208), and the buffer plate (211) and the contact plate (210) are slidably connected to the limiting plate (208) through the connecting rods (209).

6. The hydraulic cylinder cushioning device of claim 1, wherein: The adjusting screw (216) is rotatably connected to the inner wall of the fixed sleeve (202), and both rotating heads (217) are provided with internal hexagonal grooves.

7. The hydraulic cylinder cushioning device of claim 1, wherein: The guiding mechanism (4) includes two guide seats (401), and each of the two guide seats (401) is fixedly connected to a connecting block (402) at both ends. A connecting bolt (403) and a connecting nut are provided between two adjacent connecting blocks (402).

8. The hydraulic cylinder cushioning device of claim 7, wherein: The two guide seats (401) are fixedly installed on the hydraulic cylinder (1) by connecting bolts (403) and connecting nuts. Both guide seats (401) are provided with guide holes (404), which are matched with the movable rod (206).

Images