CN-122014804-A - Limiting device

CN122014804ACN 122014804 ACN122014804 ACN 122014804ACN-122014804-A

Abstract

The invention discloses a limiting device, which belongs to the technical field of limiting devices of traveling mechanisms of heavy forging equipment and comprises a hydraulic spring cylinder, a first rotating shaft and a mounting seat. One end of the piston rod of the hydraulic spring cylinder, which is positioned outside the cylinder, is connected with a rack. The cart impacts the piston rod, the piston rod slides to drive the rack to linearly displace, and drives the gear to rotate, so that the first rotating shaft and the movable block loaded by the first rotating shaft are driven to rotate, the first sliding block and the second sliding block are pushed to be away from each other, the first springs and the second springs on the back surfaces of the two sliding blocks elastically deform and shorten, and kinetic energy is converted into elastic potential energy to be stored. The hydraulic spring cylinder converts part of the kinetic energy of the cart into hydraulic oil heat energy for dissipation, and converts part of the kinetic energy into elastic potential energy of the third spring for storage. When the cart needs to leave the position, each spring can also release elastic potential energy to assist the cart to walk. Compared with the prior art, the invention can reduce the permanent damage of the instantaneous huge impact force to the limited car body structure.

Inventors

WANG YU
WANG KE
HU LIQIANG
LI WEI
CHEN ZHE
LI HUI
YANG BOWEN
YE ZHENHAO

Assignees

西安百润重工科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260402

Claims (8)

1. A spacing device, comprising: the hydraulic spring cylinder, the first rotating shaft and the mounting seat; The piston rod of the hydraulic spring cylinder is provided with a sliding section and a buffer section at one end outside the cylinder in sequence, the buffer section is positioned at one end of the piston rod, which is away from the piston of the piston rod, the buffer section is connected with a rack, the rack extends in the buffer section of the piston rod, and the extending direction is consistent with the sliding direction of the piston rod; The mounting seat is static in spacing environment, the mounting seat is equipped with first track, sliding connection has first slider and second slider in first track, all slides along first straight line direction in first track, first track is equipped with the installation cavity along the middle part of first straight line direction, first orbital installation cavity is equipped with the bearing frame, the axial one end of first pivot is located first track, is connected with the movable block, and the other end passes out first track through the bearing frame, the axial perpendicular to first straight line direction of first pivot, the movable block is rectangular form, 360 free rotation in the installation cavity, the axis of first pivot passes movable block long direction's middle part, follows first straight line direction, first slider, movable block and second slider set up relatively in proper order, one side that first slider deviates from the movable block is connected in the mounting seat through first spring, one side that second slider deviates from the movable block is connected in the mounting seat through the second spring, the direction of first, second spring is unanimous with first straight line direction through the bearing frame, the axial direction of first pivot perpendicular to first slider is long-pending, and the first pivot is located first pivot and is located first rotation rack and first rotation, and is close to first pivot and first rotation, and the first pivot is located first rotation rack and is located first rotation and is close to the first rotation, and is located first rotation rack and is coaxial, the first rotation region is located the movable gear and is rotated, the first rotation is close to the first rotation and is located first rotation and is movable to the first rotation region.
2. The limiting device according to claim 1, wherein the hydraulic spring cylinder is provided with an outer cylinder, an inner cylinder is fixedly arranged in the outer cylinder, a preset gap is formed between the walls of the inner cylinder and the outer cylinder to form an interlayer space, the inner cylinder and the outer cylinder are coaxial, the cylinder ports face to the same side, one end of the cylinder port of the inner cylinder is hermetically connected with a mounting block, hydraulic oil is filled in the inner cylinder, the outer wall of the mounting block protrudes out of the outer wall of the inner cylinder and is hermetically connected with the inner wall of one end of the cylinder, which is provided with the cylinder port, a piston is connected in a sliding manner in the inner cylinder, and slides axially along the inner cylinder, one side of the piston, which deviates from the cylinder port, is connected with the bottom of the inner cylinder through a third spring, the telescopic direction of the third spring is consistent with the axial direction of the inner cylinder, one side of the piston, which faces to the cylinder port, is connected with a piston rod, the other end of the piston rod penetrates out of the mounting block and the outer cylinder, one end of the piston rod is sequentially provided with a sliding section distributed along the body direction of the piston rod, the inner cylinder is located at one end of the piston, which deviates from the piston, the piston is provided with a plurality of oil return holes, and an oil return channel is formed in the radial direction, which is provided with a plurality of oil return holes, and an oil return channel is connected with the piston, and an oil return channel, and the piston hole is arranged at one end, and when the piston is provided with an oil return channel.
3. The limiting device according to claim 2, wherein a bearing is arranged between the outer wall of the mounting block and the inner wall of the outer barrel, the mounting block is rotatably connected to the inner wall of the outer barrel through the bearing, an annular gap is arranged on the outer wall of one side of the piston, facing the piston rod, along the radial direction of the inner barrel, one axial end of the annular gap participates in enclosing a rod cavity of the inner barrel, the radial outer side of the annular gap is used for being communicated with an oil return hole, the piston is provided with a first channel, the annular gap is communicated with a rodless cavity of the inner barrel through a first channel, the oil return channel comprises the annular gap and the first channel, and the first channel is provided with a first valve.
4. The spacing device of claim 2, wherein the mounting block is annularly provided with a first annular groove, the first annular groove is filled with pressure accumulation sponge, and the mounting block is further provided with a first perforation to communicate an interlayer space between the inner and outer cylinders and the first groove.
5. The spacing device of claim 2, wherein a second seal is provided between the outer wall of the piston rod and the inner wall of the mounting block.
6. The spacing device of claim 5, wherein the second seal is an oil seal.
7. The limiting device according to claim 2, wherein a dust ring is arranged between the inner wall of the nozzle of the outer cylinder and the outer wall of the piston rod in a surrounding manner.
8. The spacing device of claim 1, further comprising a base; The base is provided with a screw rod type linear displacement device, a driven piece of the screw rod type linear displacement device is connected with the hydraulic spring cylinder, and the linear displacement direction of the driven piece is consistent with the sliding direction of the piston rod.

Description

Limiting device Technical Field The invention relates to the technical field of limiting devices of traveling mechanisms of heavy forging equipment, in particular to a limiting device. Background The forging manipulator is a key device in a forging production line, and the accurate positioning and reliable limiting of a cart travelling mechanism directly affect the production safety and efficiency. At present, a limiting device mainly adopted in the industry is usually mechanical hard limiting, a rigid stop block is arranged at the tail end of a track where a cart walks, and the stop block is fixedly anchored with the ground and limited by self rigidity. The stop device only absorbs energy through material crushing of the rigid hard stop block, and parking is achieved. Although the structure is simple, there is a significant disadvantage in that the forces are mutually applied. When the manipulator hits the stop at a relatively high speed, a large instantaneous impact force is generated. The impact not only causes the material crushing of the hard stop block, but also causes permanent damage to the limited vehicle body structure and the track foundation, and the structural fatigue is easy to be caused after long-term use, thereby shortening the service life of the vehicle body structure. Therefore, how to provide a new limiting device to reduce the permanent damage of the instantaneous huge impact force to the limited car body structure is a problem to be solved by the person skilled in the art. Disclosure of Invention The present invention is directed to a limiting device, so as to solve the above-mentioned technical problems. In order to achieve the above purpose, the present invention provides the following technical solutions: a spacing device, comprising: the hydraulic spring cylinder, the first rotating shaft and the mounting seat; the piston rod of the hydraulic spring cylinder is provided with a sliding section and a buffer section in sequence at one end outside the cylinder, the buffer section is positioned at one end of the piston rod, which is away from the piston, the buffer section is connected with a rack, the rack extends in the buffer section of the piston rod, and the extending direction is consistent with the sliding direction of the piston rod; the mounting seat is static in spacing environment, the mounting seat is equipped with first track, sliding connection has first slider and second slider in first track, all slide along first straight line direction in first track, first track is equipped with the installation cavity along the middle part of first straight line direction, first orbital installation cavity is equipped with the bearing frame, the axial one end of first pivot is located first track, be connected with the movable block, the other end wears out first track through the bearing frame, the axial perpendicular to first straight line direction of first pivot, the movable block is rectangular form, 360 free rotations in the installation cavity, the axis of first pivot passes the long-direction middle part of movable block, along first straight line direction, first slider, movable block and second slider set up relatively in proper order, one side that first slider deviates from the movable block is through first spring coupling in the mounting seat, one side that the second slider deviates from the movable block is through the second spring coupling in the mounting seat, first, when the axial one end of first pivot is located first track, the second slider is located first natural telescopic state, preset clearance between first slider and the movable block, and the movable block have, and be located movable block and drive the first pivot and rotate the first pivot and keep away from the first rack and rotate the first and keep away from the first straight line direction, the rack and rotate the first pivot, the rack rotates the first pivot, and the rack rotates the first pivot is close to the first pivot, and the rack rotates the first end is kept away from the first straight line, and rotates the movable block, and rotates the rack. Optionally, the hydraulic spring jar is equipped with the urceolus, the urceolus endotheca is equipped with fixed mounting has the inner tube, be equipped with the clearance of predetermineeing between the section of thick bamboo of inner and outer tube in order to form the intermediate layer space, the coaxial and barrel mouth orientation of inner and outer tube is with the installation piece in barrel mouth one end sealing connection, the inside of inner tube is filled with hydraulic oil, radially along the inner tube, the outer wall of installation piece stretches out the outer wall of inner tube, and with the one end inner wall sealing connection of the barrel mouth that the urceolus is equipped with, sliding connection has the piston in the inner tube, slide along the inner tube axial, the piston deviates from the barrel bottom of inner t