CN213976654U

CN213976654U - Opening and closing device for crane lifting appliance

Info

Publication number: CN213976654U
Application number: CN202023327693.5U
Authority: CN
Inventors: 梁道蓬; 赵学宗; 张占平; 赵勇
Original assignee: Henan Cottle Machinery Manufacturing Co ltd
Current assignee: Henan Cottle Machinery Manufacturing Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-17
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a hoist is shutter for hoist, including the shutter, the shutter includes the backup pad that the level set up, the through-hole has been seted up on the top of backup pad, be equipped with the locating lever of vertical setting in the through-hole, set up the draw-in groove that is used for the joint locating plate on the locating lever, the upper end of locating lever extends to the top of last anchor clamps roof beam, and the tip threaded connection of locating lever has adjusting nut, be equipped with extension spring between adjusting nut and the backup pad, extension spring overlaps and establishes on the locating lever, the elliptical aperture has been seted up on the locating plate of backup pad below, the locating lever passes the below that the elliptical aperture extended to the locating plate, and the jib of the vertical setting of bottom fixedly connected with of locating lever, the bottom of jib is connected with the link chain, the lower extreme and the lower anchor clamps roof beam fixed connection of link chain. The utility model discloses simple structure plays to keep open effect to the hoist, and convenient to use has improved work efficiency.

Description

Opening and closing device for crane lifting appliance

Technical Field

The utility model belongs to the technical field of hoist equipment, especially, relate to a shutter for hoist.

Background

When graphite electrode is produced, need dedicated hoist to hang graphite electrode and get and carry, the hoist carries the shutter structure, but the used shutter structure of current hoist structure is unreasonable, there are a great deal of problems when using, because the graphite electrode that anchor clamps face to many, and the dimensional error between the graphite electrode and the high error of conveyer roller lead to the graphite electrode to arrange the back top surface not level, the degree that the during operation was opened between the single dead weight anchor clamps is different, and hoist body axis can't coincide with graphite electrode axis, there is great transverse force, lead to the locating lever to be buckled the card under the strength of anchor clamps roof beam, whole fixture device can't normal use.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the unreasonable technical problem of structure of current hoist shutter structure, provide a shutter for hoist, including setting up the shutter between the anchor clamps roof beam on two on hoist, the shutter includes the backup pad that the level set up, the backup pad plays the effect of fixed stay, the through-hole has been seted up on the top of backup pad, is equipped with the locating lever of vertical setting in the through-hole, the through-hole can be followed to the locating lever freely removes in vertical direction, offers the draw-in groove that is used for the joint locating plate on the locating lever, when the locating plate removed, can be to the locating lever joint. The upper end of locating lever extends to the top of last anchor clamps roof beam, and the tip threaded connection of locating lever has adjusting nut, is equipped with extension spring between adjusting nut and the backup pad, and extension spring overlaps and establishes on the locating lever, through the adjustable extension spring's of adjusting nut pretightning force. The elliptical hole has been seted up on the locating plate of backup pad below, and the locating lever passes the elliptical hole and extends to the below of locating plate, and the jib of the vertical setting of bottom fixedly connected with of locating lever, and the bottom of jib is connected with the link chain, the lower extreme and the lower anchor clamps roof beam fixed connection of link chain.

Preferably, the bottom end of the positioning plate is fixedly provided with a vertically arranged guide sleeve, the positioning rod is sleeved in the guide sleeve, and the guide sleeve plays a role in guiding and prevents the positioning rod from twisting to cause that the positioning rod cannot align to a clamping groove on the positioning plate.

Preferably, the internal diameter of uide bushing slightly is greater than the diameter of locating lever, and the lower extreme of locating lever extends the uide bushing, and the locating lever is established in the uide bushing all the time.

Preferably, both ends of the extension spring are provided with spring gaskets which are sleeved on the positioning rod.

The scheme has the following advantages:

the resilience force of the extension spring is used as the power for keeping the structure of the crane lifting appliance shutter, and the consistency of the opening and closing actions of the multi-connected clamp can be ensured by adopting the form; the ring chain is flexibly connected with the lower clamp beam, so that the suspension rod cannot be damaged even if the graphite electrode has errors and the transverse force generated by the height error of the conveying roller; the setting of uide bushing plays the guide effect to the locating lever, prevents that locating lever self from turning round and leading to on the locating lever draw-in groove unable and locating plate joint.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a left side view structure diagram of the present invention;

fig. 3 is a schematic top view of the present invention;

fig. 4 is an enlarged view of a portion a of fig. 1.

Reference numerals: 1. an upper clamp beam; 2. a lower clamp beam; 3. a hydraulic cylinder; 4. positioning a plate; 5. positioning a rod; 6. a graphite electrode; 7. a support beam; 11. a support arm; 12. a supporting seat; 31. a connecting rod; 51. a support plate; 52. adjusting the nut; 53. an extension spring; 54. a spring washer; 55. a boom; 56. a cyclic chain; 57. and a guide sleeve.

Detailed Description

As shown in fig. 1-4, a shutter for a crane spreader comprises a plurality of upper clamp beams 1 arranged at even intervals, both ends of each upper clamp beam 1 are fixed on a support beam 7, a lower clamp beam 2 is arranged below each upper clamp beam 1, each upper clamp beam 1 and each lower clamp beam 2 play a role in supporting and fixing, each upper clamp beam 1 and each lower clamp beam 2 are arranged in parallel at intervals, a support arm 11 is arranged between each upper clamp beam 1 and each lower clamp beam 2, the upper end of each support arm 11 is hinged to each upper clamp beam 1, the lower end of each support arm 11 is hinged to each lower clamp beam 2, and each support arm 11 is a two-bar linkage mechanism. The top of going up anchor clamps roof beam 1 is fixed with pneumatic cylinder 3 through the pneumatic cylinder support, the below of going up anchor clamps roof beam 1 is equipped with locating plate 4 that the level set up, it is articulated through the bolt between each locating plate 4, be equipped with connecting rod 31 between locating plate 4 and the pneumatic cylinder 3, the slope of connecting rod 31 sets up, the upper end of connecting rod 31 is articulated with 3 free ends of pneumatic cylinder, the lower extreme of connecting rod 31 is articulated with the top of locating

plate

4, 1 top of going up anchor clamps roof beam on pneumatic cylinder 3 right side is equipped with supporting seat 12, the lower extreme of connecting rod 31 is articulated with supporting seat 12, the free end of pneumatic cylinder 3 promotes connecting rod 31 and rotates, the lower extreme of connecting rod 31 drives the motion of locating plate 4. Be equipped with the shutter between two last anchor clamps roof beam 1 on the hoist, the shutter includes the backup pad 51 that the level set up, backup pad 51 plays the effect of fixed stay, the through-hole has been seted up on backup pad 51's top, be equipped with the locating lever 5 of vertical setting in the through-hole, the locating lever 5 can be followed the through-hole and freely removed in vertical direction, set up the draw-in groove that is used for joint locating plate on the locating lever 5, when locating plate 4 removed, can be to locating lever 5 joint. The upper end of the positioning rod 5 extends to the upper part of the upper clamp beam 1, the end part of the positioning rod 5 is in threaded connection with an adjusting nut 52, an extension spring 53 is arranged between the adjusting nut 52 and the supporting plate 51, the extension spring 53 is sleeved on the positioning rod 5, and the pretightening force of the extension spring 53 can be adjusted through the adjusting nut 52. The elliptical hole has been seted up on locating plate 4 of backup pad 51 below, and locating lever 5 passes the elliptical hole and extends to the below of locating plate 4, and the vertical jib 55 that sets up of bottom fixedly connected with of locating lever 5, and the bottom of jib 55 is connected with the link chain 56, the lower extreme and the lower anchor clamps roof beam 2 fixed connection of link chain 56.

Preferably, the bottom end of the positioning plate 4 is fixed with a vertically arranged guide sleeve 57, the positioning rod 5 is sleeved in the guide sleeve 57, the guide sleeve 57 plays a guiding role, and the positioning rod 5 is prevented from twisting to cause that the positioning rod cannot align with a clamping groove on the positioning plate 4.

Preferably, the inner diameter of the guide sleeve 57 is slightly larger than the diameter of the positioning rod 5, the guide sleeve 57 extends from the lower end of the positioning rod 5, and the positioning rod 5 is always sleeved in the guide sleeve 57.

Preferably, both ends of the extension spring 53 are provided with spring washers 54, and the spring washers 54 are sleeved on the positioning rod 5.

The use process comprises the following steps:

the utility model discloses during the use, when the crane hoist accompanies graphite electrode 6, the crane hoist is put down after the overhead traveling crane moves the destination, graphite electrode 6 targets in place the back, the free end of pneumatic cylinder 3 promotes connecting rod 31, connecting rod 31 drives locating plate 4 and removes, locating plate 4 breaks away from the draw-in groove on the locating lever 5, draw-in groove on the locating lever 5 will pass locating plate 4 under extension spring 53's resilience power simultaneously, and then under jib 5's traction, anchor clamps roof beam 2 shifts up under the drag of ring chain 56, support arm 11 is pulling the arm lock and is breaking away from graphite electrode 6, under extension spring 53's resilience effect, the crane hoist remains open state throughout.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a hoist is shutter for hoist which characterized in that: including setting up the shutter between the anchor clamps roof beam on two on the hoist, the shutter includes the backup pad that the level set up, the through-hole has been seted up on the top of backup pad, be equipped with the locating lever of vertical setting in the through-hole, set up the draw-in groove that is used for joint locating plate on the locating lever, the upper end of locating lever extends to the top of last anchor clamps roof beam, and the tip threaded connection of locating lever has adjusting nut, be equipped with extension spring between adjusting nut and the backup pad, extension spring overlaps and establishes on the locating lever, the elliptical aperture has been seted up on the locating plate of backup pad below, the locating lever passes the below that the elliptical aperture extends to the locating plate, and the jib of the vertical setting of bottom fixedly connected with of locating lever, the bottom of jib is connected with the link chain, the lower extreme and the lower anchor clamps roof beam fixed connection of link chain.

2. The shutter for crane spreaders as claimed in claim 1, wherein: the bottom end of the positioning plate is fixed with a vertically arranged guide sleeve, and the positioning rod is sleeved in the guide sleeve.

3. A crane spreader shutter according to claim 2, wherein: the internal diameter of uide bushing slightly is greater than the diameter of locating lever, and the lower extreme of locating lever extends the uide bushing.

4. A crane spreader shutter according to claim 3, wherein: both ends of the extension spring are provided with spring gaskets which are sleeved on the positioning rods.