Clamping force adjusting device for locking oil cylinder of finishing mill

Abstract

The utility model provides a finishing mill locking oil cylinder clamping force adjusting device, and relates to the technical field of finishing mill hydraulic equipment, the finishing mill locking oil cylinder clamping force adjusting device comprises a hydraulic piston barrel and an adjusting structure, the hydraulic piston barrel is internally provided with a piston cavity, the outer side of the bottom of the hydraulic piston barrel is fixedly connected with a connecting bottom ring, and the bottom of the connecting bottom ring is fixedly connected with an assembling bottom block; a connecting top seat is fixedly connected to the top of the hydraulic piston cylinder, a connecting rod is fixedly connected between the assembling bottom block and the connecting top seat, an adjusting structure is arranged on the hydraulic piston cylinder, a piston is arranged in the piston cavity, one end of the piston is fixedly connected with a hydraulic rod, and limiting tooth grooves are fixedly connected to the two ends of the hydraulic rod. By arranging the adjusting structure, the clamping force of the locking oil cylinder can be adjusted more accurately through high-precision movement limiting, the position of a piston can be changed with a smaller step length, pressure distribution of hydraulic oil in the oil cylinder can be adjusted more finely, and accurate control over the clamping force is achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydraulic equipment for finishing mills, and more specifically, it relates to a clamping force adjustment device for a locking cylinder of a finishing mill. Background Technology

[0002] In steel rolling production, the finishing mill has extremely high requirements for equipment stability. Especially during the steel feeding operation, the end of the steel workpiece will exert a certain impact force on the roll, causing the entire mill to shake. Continuous impact will cause the finishing mill to shift, which will affect the processing accuracy of the finishing mill and lead to scrap. Therefore, the precise control of the clamping force of the locking cylinder plays a crucial role in the performance of the finishing mill.

[0003] Based on the above, the clamping force of the traditional finishing mill locking cylinder is often fixed during operation, and cannot be flexibly adjusted according to different working conditions and needs in actual production. If the clamping force is too large, the roll may be subjected to a large radial pressure, which may easily cause the roll to break over time. If the clamping force is too small, the insufficient clamping force may cause the roll to move, thus affecting the processing accuracy of steel rolling. Therefore, a fixed clamping force may not meet the optimal working requirements, affecting production efficiency and quality. Utility Model Content

[0004] To address the aforementioned technical problems, this disclosure relates to a clamping force adjustment device for a finishing mill locking cylinder. This device solves the problem that the clamping force of current finishing mill locking cylinders is fixed and cannot be flexibly adjusted according to different working conditions and needs in actual production. Through the adjustment structure and high-precision movement limit, the adjustment of the clamping force of the locking cylinder is made more accurate. It allows for smaller step sizes to change the piston position, enabling more precise adjustment of the hydraulic oil pressure distribution within the cylinder. This achieves minute and precise control of the clamping force, allowing for real-time and accurate fine-tuning of the clamping force based on material characteristics during practical applications. This ensures that the rolls apply just the right pressure to the rolled material, improving the production accuracy and quality of rolled steel. Furthermore, the connection structure allows for the disassembly and replacement of the clamps according to the roll diameter, ensuring precise adaptation to rolls of different diameters. This avoids excessive wear caused by mismatch between the clamps and the rolls, thereby extending the service life of the rolls, locking cylinder, and the entire mill.

[0005] This utility model discloses a clamping force adjustment device for a locking cylinder of a finishing mill, which is achieved by the following specific technical means:

[0006] In a first aspect, this disclosure provides a clamping force adjustment device for a locking cylinder of a finishing mill, specifically including a hydraulic piston cylinder and an adjustment structure;

[0007] The hydraulic piston cylinder has a piston chamber inside. A connecting bottom ring is fixedly connected to the outer bottom of the hydraulic piston cylinder. An assembly bottom block is fixedly connected to the bottom of the connecting bottom ring. A connecting top seat is fixedly connected to the top of the hydraulic piston cylinder. A connecting rod is fixedly connected between the assembly bottom block and the connecting top seat. The hydraulic piston cylinder is provided with an adjustment structure, which includes a piston, a hydraulic rod, a limiting tooth groove, and a locking tooth block. The piston chamber is provided with a piston. A hydraulic rod is fixedly connected to one end of the piston, and both ends of the hydraulic rod are fixedly connected to the limiting tooth groove. A locking tooth block meshes with the limiting tooth groove.

[0008] In at least some embodiments, a guide rod is fixedly connected to the outer side of the hydraulic rod, and a limiting arc groove is formed at the end face of the hydraulic piston cylinder, with the guide rod slidingly installed in the limiting arc groove.

[0009] In at least some embodiments, the guide rods are provided in four sets.

[0010] In at least some embodiments, the top two ends of the hydraulic piston cylinder are fixedly connected to a connecting frame, the connecting frame has a movable cavity inside, an electromagnet is fixedly installed at one end of the movable cavity, a connecting slide rod is fixedly connected to the electromagnet and the other end of the movable cavity, and a tightening spring is fitted on the outside of the connecting slide rod.

[0011] In at least some embodiments, the other end of the movable cavity is provided with a movable magnetic plate, the movable magnetic plate has a sliding support hole, and the movable magnetic plate is slidably installed on the connecting slide rod through the sliding support hole. At the same time, one end of the movable magnetic plate is fixedly connected to one end of the locking tooth block.

[0012] In at least some embodiments, one end of the hydraulic rod is provided with a connecting structure, the connecting structure including a clamping bracket and a connecting top ring. One end of the hydraulic rod is provided with a clamping bracket, and the end of the clamping bracket near the hydraulic rod is fixedly connected to the connecting top ring. Both ends of the connecting top ring are provided with assembly holes, and the hydraulic rod is provided with threaded holes. Assembly bolts are installed in the assembly holes, and the assembly bolts engage with the threaded holes.

[0013] This utility model provides a clamping force adjustment device for a locking cylinder of a finishing mill, which has the following advantages:

[0014] 1. By adjusting the structure and using high-precision movement limits, the clamping force of the locking cylinder can be adjusted more precisely. The position of the piston can be changed in smaller steps, allowing for more precise adjustment of the pressure distribution of hydraulic oil in the cylinder. This enables minute and precise control of the clamping force, allowing for real-time and accurate fine-tuning of the clamping force based on material characteristics during practical applications. This ensures that the rolls apply just the right pressure to the rolled material, improving the production accuracy and quality of steel rolling. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 3 This is a schematic diagram of the hydraulic rod structure in the adjustment structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the adjustment structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the locking tooth block structure in the adjustment structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the disassembled connection structure of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Hydraulic piston cylinder;

[0023] 101. Piston chamber;

[0024] 102. Connect the bottom ring;

[0025] 103. Assemble the base block; 1031. Connect the top mount;

[0026] 104. Connecting rod;

[0027] 2. Adjust the structure;

[0028] 201. Piston; 2011. Hydraulic rod; 2012. Guide rod; 2013. Limiting arc groove; 2014. Limiting tooth groove;

[0029] 202. Connecting outer frame; 2021. Movable cavity;

[0030] 203. Electromagnet; 2031. Connecting slide rod; 2032. Tightening spring;

[0031] 204. Moving magnetic plate; 2041. Sliding support hole; 2042. Locking tooth block;

[0032] 3. Connection structure;

[0033] 301. Clamping bracket; 3011. Connecting top ring; 3012. Assembly hole;

[0034] 302. Threaded hole;

[0035] 303. Assembly bolts. Detailed Implementation

[0036] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0037] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown:

[0038] This utility model provides a clamping force adjustment device for a locking cylinder of a finishing mill, including a hydraulic piston cylinder 1 and an adjustment structure 2;

[0039] The hydraulic piston cylinder 1 has a piston chamber 101 inside. A connecting bottom ring 102 is fixedly connected to the outer bottom of the hydraulic piston cylinder 1. An assembly bottom block 103 is fixedly connected to the bottom of the connecting bottom ring 102. A connecting top seat 1031 is fixedly connected to the top of the hydraulic piston cylinder 1. A connecting rod 104 is fixedly connected between the assembly bottom block 103 and the connecting top seat 1031. The hydraulic piston cylinder 1 is provided with an adjustment structure 2, which includes a piston 201, a hydraulic rod 2011, a limiting tooth groove 2014, and a locking tooth block 2042. The piston 201 is provided inside the piston chamber 101. A hydraulic rod 2011 is fixedly connected to one end of the piston 201, and both ends of the hydraulic rod 2011 are fixedly connected... A limiting tooth groove 2014 is connected, and a locking tooth block 2042 meshes on the limiting tooth groove 2014. A guide rod 2012 is fixedly connected to the outer side of the hydraulic rod 2011. A limiting arc groove 2013 is opened at the end face of the hydraulic piston cylinder 1. The guide rod 2012 is slidably installed in the limiting arc groove 2013. There are four sets of guide rods 2012. The top two ends of the hydraulic piston cylinder 1 are fixedly connected to a connecting frame 202. The connecting frame 202 has a movable cavity 2021 inside. An electromagnet 203 is fixedly installed at one end of the movable cavity 2021. A connecting slide rod 2031 is fixedly connected to the other end of the electromagnet 203 and the movable cavity 2021. An outer sleeve is fitted with a tensioning spring 2032. The other end of the movable cavity 2021 is equipped with a movable magnetic plate 204. The movable magnetic plate 204 has a sliding support hole 2041, and is slidably mounted on the connecting slide rod 2031 through the sliding support hole 2041. Simultaneously, one end of the movable magnetic plate 204 is fixedly connected to one end of the locking tooth block 2042. The electromagnet 203 and the movable magnetic plate 204 are opposite poles. Therefore, by activating the electromagnet 203, the opposite poles attract, causing the movable magnetic plate 204 to move. The movable magnetic plate 204 then causes the locking tooth block 2042 to disengage from the limiting tooth groove 2014. At this time, the movement is adjusted by controlling the locking cylinder according to the limiting tooth groove. The spacing of 2014 controls the high-precision movement of the hydraulic rod 2011. After adjustment, the electromagnet 203 is turned off. When the moving magnetic plate 204 moves, it squeezes the clamping spring 2032 on the connecting slide rod 2031, causing the clamping spring 2032 to undergo elastic deformation. When the pressure is lost, the clamping spring 2032 generates elastic force to push the moving magnetic plate 204 to move. The moving magnetic plate 204 then drives the locking tooth block 2042 to be inserted into the limiting tooth groove 2014, completing the limiting of the hydraulic rod 2011. This allows the piston 201 to change its position with smaller steps, enabling more precise adjustment of the pressure distribution of hydraulic oil in the cylinder and achieving small and precise control of the clamping force.

[0040] Example 2: Based on Example 1, wherein, as Figure 6As shown, one end of the hydraulic rod 2011 is provided with a connecting structure 3. The connecting structure 3 includes a clamping bracket 301 and a connecting top ring 3011. The clamping bracket 301 is fixedly connected to the end of the clamping bracket 301 near the hydraulic rod 2011. The two ends of the connecting top ring 3011 are provided with assembly holes 3012, and the hydraulic rod 2011 is provided with threaded holes 302. Assembly bolts 303 are installed in the assembly holes 3012. The assembly bolts 303 mesh with the threaded holes 302. By rotating the assembly bolts 303 in the reverse direction, the assembly bolts 303 can be removed from the threaded holes 302, and then the clamping bracket 301 can be disassembled. A clamping bracket 301 of appropriate diameter is selected, and the connecting top ring 3011 is fitted onto the outside of the hydraulic rod 2011. Then the assembly bolts 303 are tightened to complete the replacement.

[0041] The specific usage and function of this embodiment are as follows:

[0042] In this invention, the electromagnet 203 is activated, and the moving magnetic plate 204 moves under the principle of opposite poles attracting each other. The moving magnetic plate 204 then causes the locking tooth block 2042 to disengage from the limiting tooth groove 2014. At this time, the movement is adjusted by controlling the locking cylinder. The high-precision movement of the hydraulic rod 2011 is controlled according to the spacing of the limiting tooth groove 2014. After adjustment, the electromagnet 203 is turned off. When the moving magnetic plate 204 moves, it squeezes the pressing spring 2032 on the connecting slide rod 2031, causing the pressing spring 2032 to undergo elastic deformation. When the pressure is lost, the pressing spring 2032 generates elastic force to push the moving magnetic plate 204 to move. The moving magnetic plate 204 then causes the locking tooth block 2042 to be inserted into the limiting tooth groove 2014, completing the limiting of the hydraulic rod 2011. This allows the piston 201 to change its position with smaller steps, enabling more precise adjustment of the pressure distribution of hydraulic oil in the cylinder and achieving small and precise control of the clamping force.

Claims

1. A clamping force adjustment device for a locking cylinder of a finishing mill, comprising a hydraulic piston cylinder and an adjustment structure; The hydraulic piston cylinder has a piston chamber inside. A connecting bottom ring is fixedly connected to the outer bottom of the hydraulic piston cylinder. An assembly bottom block is fixedly connected to the bottom of the connecting bottom ring. A connecting top seat is fixedly connected to the top of the hydraulic piston cylinder. A connecting rod is fixedly connected between the assembly bottom block and the connecting top seat. The hydraulic piston cylinder is equipped with an adjustment structure. Its characteristic is that: The adjustment structure includes a piston, a hydraulic rod, a limiting tooth groove, and a locking tooth block. The piston is located inside the piston chamber. One end of the piston is fixedly connected to the hydraulic rod, and both ends of the hydraulic rod are fixedly connected to the limiting tooth groove. The locking tooth block is engaged on the limiting tooth groove.

2. The clamping force adjustment device for the locking cylinder of a finishing mill as described in claim 1, characterized in that: A guide rod is fixedly connected to the outside of the hydraulic rod, and a limiting arc groove is opened at the end face of the hydraulic piston cylinder. The guide rod is slidably installed in the limiting arc groove.

3. The clamping force adjustment device for the locking cylinder of a finishing mill as described in claim 2, characterized in that: The guide rods are provided in four sets.

4. The clamping force adjustment device for the locking cylinder of a finishing mill as described in claim 1, characterized in that: The top two ends of the hydraulic piston cylinder are fixedly connected to a connecting frame. The connecting frame has a movable cavity inside. An electromagnet is fixedly installed at one end of the movable cavity. A connecting slide rod is fixedly connected to the electromagnet and the other end of the movable cavity. A tightening spring is fitted on the outside of the connecting slide rod.

5. The clamping force adjustment device for the locking cylinder of a finishing mill as described in claim 4, characterized in that: The other end of the movable cavity is provided with a movable magnetic plate, which has a sliding support hole. The movable magnetic plate is slidably installed on the connecting slide rod through the sliding support hole, and one end of the movable magnetic plate is fixedly connected to one end of the locking tooth block.

6. The clamping force adjustment device for the locking cylinder of a finishing mill as described in claim 1, characterized in that: One end of the hydraulic rod is provided with a connecting structure, which includes a clamping bracket and a connecting top ring. The clamping bracket is fixedly connected to the end of the clamping bracket near the hydraulic rod. The two ends of the connecting top ring are provided with assembly holes, and the hydraulic rod is provided with threaded holes. Assembly bolts are installed in the assembly holes and the assembly bolts engage with the threaded holes.

Images