CN-121974239-A - Shell lifting device of magnetic fluid sealing transmission equipment

CN121974239ACN 121974239 ACN121974239 ACN 121974239ACN-121974239-A

Abstract

The invention discloses a lifting device for a shell of magnetic fluid sealed transmission equipment, which comprises a lifting device main shaft and a self-locking lifting mechanism arranged on the lifting device main shaft, wherein the self-locking lifting mechanism comprises a sliding telescopic component, a fixed telescopic component and an adjusting type supporting hinge mechanism, the adjusting type supporting hinge mechanism is respectively hinged with the fixed telescopic component and the sliding telescopic component, and a self-locking limiting structure is formed between the sliding telescopic component and the fixed telescopic component when the adjusting type supporting hinge mechanism is in a supporting lifting state. This sealed transmission equipment shell hoisting device of magnetic fluid through the setting of adjustable support hinge mechanism, can satisfy the sealed transmission equipment shell of magnetic fluid of different internal diameters and promote, and the generic property is good, sets up auto-lock limit structure on hoisting device and realizes the auto-lock between hoisting device and the shell product through gravity, has guaranteed the security performance that promotes, uses safe and reliable, and whole device simple structure moreover, convenient operation is swift.

Inventors

WU XIAOWEI
YUE QIMING
AN XIAOLONG
CHENG LIMING
XIE RUYING

Assignees

杭州大和热磁电子有限公司

Dates

Publication Date: 20260505
Application Date: 20251119

Claims (10)

1. A lifting device for a shell of magnetic fluid sealing transmission equipment is characterized by comprising a lifting device main shaft (1) and a self-locking lifting mechanism (2) arranged on the lifting device main shaft (1), wherein the self-locking lifting mechanism (2) comprises a sliding telescopic component (4), a fixed telescopic component (5) and an adjusting type supporting hinge mechanism (6), the adjusting type supporting hinge mechanism (6) is respectively hinged with the fixed telescopic component (5) and the sliding telescopic component (4), and a self-locking limiting structure (20) is formed between the sliding telescopic component (4) and the fixed telescopic component (5) when the adjusting type supporting hinge mechanism (6) is in a supporting lifting state.
2. The lifting device for the shell of the magnetic fluid sealed transmission equipment according to claim 1, wherein the fixed telescopic component (5) is connected to the lower end of a main shaft (1) of the lifting device, and the sliding telescopic component (4) is arranged on the main shaft (1) of the lifting device in a sliding manner and drives the adjustable supporting hinge mechanism (6) to realize the telescopic operation.
3. The lifting device for the shell of the magnetic fluid sealing transmission equipment according to claim 1, wherein the adjusting type supporting hinge mechanism (6) comprises a plurality of groups of hinged connecting rod assemblies (61), each group of hinged connecting rod assemblies (61) comprises a rotating connecting rod (7) hinged with the sliding telescopic assembly (4) and a lifting connecting rod (8) hinged with the fixed telescopic assembly (5), and the lifting connecting rod (8) is hinged with the rotating connecting rod (7).
4. A lifting device for a shell of a magnetic fluid sealed transmission device according to claim 3 is characterized in that a lifting supporting part (81) is arranged on the lifting connecting rod (8), and a lifting guide cambered surface (86) and a lifting bearing matching surface (87) are arranged on the lifting supporting part (81).
5. The lifting device for the shell of the magnetic fluid sealing transmission equipment according to claim 3, wherein at least one lifting link rod hinge hole (84) is formed in the lifting link rod (8), a travel groove (73) is formed in the rotating link rod (7), travel hinge holes (74) are formed in two side walls of the travel groove (73), and the lifting link rod (8) and the rotating link rod (7) are hinged to hinge shafts (10) arranged inside the lifting link rod hinge holes (84) and the travel hinge holes (74).
6. The lifting device for the shell of the magnetic fluid seal transmission equipment according to any one of claims 1 to 5, wherein the sliding telescopic assembly (4) comprises a sliding shaft sleeve (41) and a plurality of groups of sliding shaft sleeve hinge bases (42) arranged on the sliding shaft sleeve (41), and a self-locking limiting surface (45) for forming a self-locking limiting structure (20) is arranged at one end of the sliding shaft sleeve hinge part (43) facing the fixed telescopic assembly (5).
7. The lifting device for the shell of the magnetic fluid sealed transmission equipment according to claim 6, wherein each group of the sliding shaft sleeve hinge bases (42) respectively comprises a pair of sliding hinge base plates with hinge holes, and a sliding ring groove (46) is formed in the inner wall of the sliding shaft sleeve (41).
8. A lifting device for a shell of a magnetic fluid sealing transmission device according to any one of claims 1 to 5 is characterized in that the fixed telescopic assembly (5) comprises a fixed shaft sleeve (51) and a plurality of groups of fixed shaft sleeve hinge bases (52) arranged on the fixed shaft sleeve (51), sliding shaft sleeve limiting surfaces (55) used for forming a self-locking limiting structure (20) are arranged at the end parts of the fixed shaft sleeve (51), and each group of fixed shaft sleeve hinge bases (52) respectively comprises a pair of fixed hinge base plates with hinge holes.
9. A lifting device for a shell of a magnetic fluid sealing transmission device according to any one of claims 1 to 5 is characterized in that a main shaft inner cavity (16) is arranged in a main shaft (1) of the lifting device, a contraction mechanism (9) is arranged in the main shaft inner cavity (16), and a lifting ring device (3) is further arranged on the main shaft (1) of the lifting device.
10. The lifting device for the shell of the magnetic fluid sealing transmission equipment according to claim 9 is characterized in that a plurality of sliding grooves (17) are formed in the cavity wall of the inner cavity (16) of the main shaft along the axial direction, the sliding grooves (17) penetrate through the outer wall of the main shaft of the lifting device, the contraction mechanism (9) comprises a contraction push rod (91) and an inner push rod (92) connected with the contraction push rod (91), and the inner push rod (92) penetrates through the sliding grooves (17) to be connected with the sliding telescopic assembly (4) and drive the sliding telescopic assembly (4) to slide along the main shaft (1) of the lifting device.

Description

Shell lifting device of magnetic fluid sealing transmission equipment Technical Field The invention relates to the technical field of magnetic fluid sealing transmission devices, in particular to a lifting device for a shell of magnetic fluid sealing transmission equipment. Background The shell product of the magnetic fluid sealing transmission equipment is made of stainless steel and is dark silvery white, the end face of the product is used for fixing the magnetic fluid sealing transmission equipment and the sealing face of external equipment, and the vacuum static seal is realized by using an O-shaped ring. The inner diameter of the shell of the magnetic fluid sealing transmission device is assembled with the outer diameter of the magnetic pole of the magnetic fluid sealing area, and the O-shaped ring on the magnetic pole realizes vacuum static seal. Because of the requirement of vacuum tightness, the end face and the inner diameter face of the shell product cannot be scratched, so that leakage of the O-shaped ring during vacuumizing after assembly is avoided, and the leakage rate of the magnetic fluid sealing rotating equipment is prevented from being influenced. Therefore, the end face, the inner diameter and other sealing surfaces must be protected from damage at any time during any process of manufacturing and processing the shell product. Because the inside of the shell of the magnetic fluid sealed transmission equipment is mainly composed of an upper step surface and a lower step surface. Therefore, the prior proposal for lifting the shell product utilizes a suspender and a suspender to realize lifting, and the specific operation is that after the suspender is sleeved on the suspender, the suspender is put into the shell to the lower part of the step surface, then the suspender is put horizontally, and simultaneously, an ascending auxiliary crane is started to clamp the suspender on the step surface horizontally, so as to form a lifting support. During hoisting, the matched contact surface between the suspender and the step surface of the shell is smaller, so that the risk of falling off exists, the damage to the outer end surface and the inner diameter of the shell product is easily caused, the personnel injury is caused by serious potential safety hazards, and the operation is very inconvenient. Therefore, the shell of the magnetic fluid sealing transmission equipment is complicated and inconvenient in lifting operation, high in potential safety hazard, easy to have sliding risks, easy to cause product quality damage and incapable of effectively protecting the sealing stability of the magnetic fluid sealing rotation device. Chinese patent document CN211715771U discloses an auxiliary assembly tooling for a magnetic fluid seal transmission device. The connecting device comprises a base and a clamping sleeve, wherein a first inserting hole for inserting a transmission shaft is formed in the base, the clamping sleeve is provided with an inserting hole for horizontally inserting a shell, a guide assembly is further arranged on the base, the clamping sleeve is in sliding connection with the guide assembly, the clamping sleeve slides relative to the base along the direction parallel to the axis of the first inserting hole, and the axis of the inserting hole always coincides with the axis of the first inserting hole in the sliding process. Therefore, the transmission shaft is inserted into the first insertion hole, the shell is embedded into the embedded hole, the clamping sleeve is connected to the base, the transmission shaft and the shell can be positioned and installed, in the assembly process, the clamping sleeve can only slide along the direction parallel to the axis of the first insertion hole, namely, the shell can only slide along the axis of the transmission shaft, the transmission shaft can be ensured not to deviate from the center of the shell all the time, extra loss of magnetic fluid is avoided, and guarantee is provided for efficient sealing of vacuum equipment. The technical scheme provides an auxiliary assembly tool for the magnetic fluid sealing transmission device, but solves the problem of extra loss of magnetic fluid, and can not solve the technical problem of the shell lifting and lifting device. Disclosure of Invention The invention aims to solve the problems that in the prior art, scratches are easily caused on the end face of a shell, the sealing face of an inner cavity and the like in the lifting process, the lifting process is complex in action, inconvenient to operate and high in potential safety hazard, products are damaged due to sliding, the quality of the products is affected, the sealing stability of a magnetic fluid sealing rotating device cannot be effectively protected, and the like, and provides the magnetic fluid sealing transmission equipment shell lifting device which is convenient and fast to operate, safe and reliable and can not cause the damage of the products.