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CN-122014784-A - Crash-proof unpowered self-adaptive damper for unloading door of mine car

CN122014784ACN 122014784 ACN122014784 ACN 122014784ACN-122014784-A

Abstract

The invention relates to the technical field of vibration reduction, and discloses an anti-collision unpowered self-adaptive vibration damper for a mine car unloading door, which comprises a vibration reduction assembly, and comprises a cylinder barrel, wherein a piston is arranged in the cylinder barrel, a guide rod is fixed on one side of the piston, a front plug and a rear plug are respectively arranged on two sides of the cylinder barrel, an air bag is arranged in the rear plug, a jet hole and a through hole are formed in the piston, a first cavity and a second cavity are formed in the cylinder barrel, the air bag is communicated with the second cavity, a flow blocking piece is arranged in the through hole, a movable connector is arranged at the end part of the guide rod, and a static connector is fixed on one side of the rear plug. The damping device has the beneficial effects that through the arrangement of the damping component, damping can be provided when the carriage door is closed so as to buffer the impact force of the carriage door, so that impact noise is eliminated, the carriage and carriage door structure is protected, the service life of a truck is prolonged, and the normal opening of the unloading door of the mine car is not influenced.

Inventors

  • REN WEI
  • YANG KUI
  • LI DONGHUI
  • ZHOU MIN
  • BAI HUIWEN

Assignees

  • 云南先进弹性体产业创新研究院有限公司

Dates

Publication Date
20260512
Application Date
20260317

Claims (10)

  1. 1. An anti-collision unpowered self-adaptive vibration damper for a mine car unloading door is characterized by comprising, Vibration damping assembly (1), including cylinder (11), be provided with piston (12) in cylinder (11), piston (12) one side is fixed with guide arm (13), cylinder (11) both sides are provided with preceding end cap (14) and back end cap (15) respectively, be provided with gasbag (16) in back end cap (15), jet hole (121) and through-hole (122) have been seted up on piston (12), first cavity (111) and second cavity (112) have been seted up in cylinder (11), gasbag (16) with second cavity (112) intercommunication, be provided with choked flow piece (17) in through-hole (122), guide arm (13) tip is provided with movable connection head (18), back end cap (15) one side is fixed with quiet connector (19).
  2. 2. The mine car unloading door anti-collision unpowered self-adaptive damper according to claim 1, wherein the flow blocking piece (17) comprises a blocking ball (171), a supporting rod (172) is fixed on the inner wall of the through hole (122), a positioning column (173) is fixed on one side of the supporting rod (172), and the blocking ball (171) is movably connected with the outer side of the positioning column (173).
  3. 3. The mine car unloading door anti-collision unpowered self-adaptive damper according to claim 2, wherein the number of the jet holes (121) and the number of the through holes (122) are all multiple, the jet holes are uniformly distributed on the piston (12) in an annular shape, and the through holes (122) are conical in shape.
  4. 4. A mine car discharge door crash-proof unpowered self-adaptive damper as claimed in claim 2 or 3, wherein the air bag (16) is made of rubber elastomer material and has tensile deformation property of the rubber material.
  5. 5. The mine car discharge door anticollision unpowered self-adaptive damper as set forth in claim 4, further comprising an adjusting component (2) disposed on one side of the piston (12), wherein the adjusting component (2) comprises a rotating sleeve (21), a groove (123) is formed in the piston (12), the rotating sleeve (21) is rotatably connected in the groove (123), a fixing rod (22) is fixed on the outer side of the rotating sleeve (21), a stop block (23) is fixed on the end portion of the fixing rod (22), and the number of the stop blocks (23) is consistent with that of the jet holes (121).
  6. 6. The mine car unloading door anti-collision unpowered self-adaptive damper according to claim 5, wherein a stress sleeve (24) is inserted into the rotation sleeve (21), a first spring (25) is fixed on the inner side of the stress sleeve (24), the other end of the first spring (25) is fixed on the inner wall of the groove (123), a spiral groove (211) is formed in the rotation sleeve (21), a fixed shaft (26) is fixed on one side of the stress sleeve (24), and the fixed shaft (26) slides in the spiral groove (211).
  7. 7. The mine car unloading door anti-collision unpowered self-adaptive damper according to claim 6, wherein a sliding block (27) is fixed on the inner side of the rotating sleeve (21), a sliding groove (241) is formed in the stress sleeve (24), and the sliding block (27) slides in the sliding groove (241).
  8. 8. A mine car unloading door anti-collision unpowered self-adaptive damper as set forth in claim 6 or 7, further comprising a protection assembly (3) arranged on the cylinder barrel (11), wherein the protection assembly (3) comprises a connecting pipe (31) fixed on the cylinder barrel (11), a collecting tank (32) is fixed on one side of the connecting pipe (31), and an elastic membrane (33) is fixed in the collecting tank (32).
  9. 9. The mine car discharge door anti-collision unpowered self-adaptive damper according to claim 8, wherein a fixed ring (34) is fixed in the connecting pipe (31), a baffle plate (35) is arranged at the bottom of the fixed ring (34), a fixed column (36) is fixed at the bottom of the baffle plate (35), a positioning frame (37) is fixed in the connecting pipe (31), and a second spring (38) is fixed at the top of the positioning frame (37).
  10. 10. The mine car discharge door anti-collision unpowered self-adaptive damper according to claim 9, wherein a movable rod (39) is arranged in the cylinder barrel (11), a stress groove (361) is formed in the fixed column (36), a pressing block (310) is fixed at the bottom of the movable rod (39), a movable rod (311) is arranged on one side of the piston (12), a pushing block (312) is fixed on the stress sleeve (24), a clamping block (313) is fixed at the top end of the movable rod (311), and a clamping groove (314) is formed in the movable rod (39).

Description

Crash-proof unpowered self-adaptive damper for unloading door of mine car Technical Field The invention relates to the technical field of vibration reduction, in particular to an anti-collision unpowered self-adaptive vibration damper for a mine car unloading door. Background In the coal mine transportation operation, the coal mine truck bears an important task of coal transportation, a carriage door of the coal mine truck plays a role in controlling coal unloading in the unloading process, and when the coal is unloaded, the carriage door can be closed under the action of self gravity and related structures, and strong impact is easily generated on the carriage at the moment. Because colliery freight train transportation environment is comparatively abominable, and carriage door and carriage receive this kind of impact for a long time, not only can produce very big noise, influence operation environment and peripheral resident life, still can lead to the carriage door and the junction part wearing and tearing of carriage aggravate, the structure is not hard up, shorten freight train's life, increase cost of maintenance, current colliery freight train is mostly not to this kind of carriage door impact problem set up special buffer, a minority adopts simple buffering package/crashproof pad device, the buffering effect is limited, and very easy wearing and tearing, need often change, be difficult to effectively solve impact and noise problem. Disclosure of Invention The present invention has been developed in view of the above-discussed and/or other problems associated with existing crash-free, unpowered, adaptive vibration absorbers for mine car discharge doors. Therefore, the problem to be solved by the invention is that when the carriage door is closed, strong impact is generated on the carriage, so that the abrasion of the connecting part between the carriage door and the carriage is increased, and the structure is loosened. In order to solve the technical problems, the invention provides the technical scheme that the anti-collision unpowered self-adaptive shock absorber for the unloading door of the mine car comprises a shock absorption assembly, wherein the shock absorption assembly comprises a cylinder barrel, a piston is arranged in the cylinder barrel, a guide rod is fixed on one side of the piston, a front plug and a rear plug are respectively arranged on two sides of the cylinder barrel, an air bag is arranged in the rear plug, a jet hole and a through hole are formed in the piston, a first cavity and a second cavity are formed in the cylinder barrel, the air bag is communicated with the second cavity, a flow blocking piece is arranged in the through hole, a movable connector is arranged at the end part of the guide rod, and a static connector is fixed on one side of the rear plug. As a preferable scheme of the crash-proof unpowered self-adaptive shock absorber of the mine car unloading door, the flow blocking piece comprises a blocking ball, a supporting rod is fixed on the inner wall of the through hole, a positioning column is fixed on one side of the supporting rod, and the blocking ball is movably connected with the outer side of the positioning column. As an optimal scheme of the anti-collision unpowered self-adaptive shock absorber of the mine car unloading door, the number of the jet holes and the number of the through holes are multiple, the jet holes and the through holes are uniformly distributed on the piston in an annular shape, and the through holes are conical. As a preferable scheme of the crash-proof unpowered self-adaptive shock absorber of the mine car unloading door, the air bag is made of rubber elastomer materials and has the tensile deformation performance of the rubber materials. The anti-collision unpowered self-adaptive shock absorber for the mine car unloading door further comprises an adjusting component, wherein the adjusting component is arranged on one side of the piston, the adjusting component comprises a rotating sleeve, a groove is formed in the piston, the rotating sleeve is rotationally connected in the groove, a fixing rod is fixed to the outer side of the rotating sleeve, stop blocks are fixed to the end portions of the fixing rod, and the number of the stop blocks is consistent with that of the jet holes. As an optimal scheme of the anti-collision unpowered self-adaptive shock absorber of the mine car unloading door, a stress sleeve is inserted into the rotating sleeve, a first spring is fixed on the inner side of the stress sleeve, the other end of the first spring is fixed with the inner wall of the groove, a spiral groove is formed in the rotating sleeve, a fixed shaft is fixed on one side of the stress sleeve, and the fixed shaft slides in the spiral groove. As an optimal scheme of the anti-collision unpowered self-adaptive shock absorber of the mine car unloading door, a sliding block is fixed on the inner side of the rotating sleeve, a sliding groove is