CN214494508U

CN214494508U - Quick-opening access door for maintaining tail wheel of elevator

Info

Publication number: CN214494508U
Application number: CN202120555763.8U
Authority: CN
Inventors: 刘振栋; 汪南林
Original assignee: Langfang Xinshidai Chain Conveying Equipment Co ltd
Current assignee: Langfang Xinshidai Chain Conveying Equipment Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-10-26
Anticipated expiration: 2031-03-18

Abstract

The utility model discloses a quick-opening access door for maintaining a tail pulley of a hoisting machine, which comprises a maintenance door arranged on a casing of the hoisting machine corresponding to the tail pulley of the hoisting machine, wherein one end of the maintenance door is rotationally connected with the casing of the hoisting machine through a hinge, and the other end of the maintenance door is connected with the casing of the hoisting machine through a hasp lock; one side of the maintenance door facing the elevator shell is provided with a movable contact of a contact switch, the elevator shell is provided with a fixed contact corresponding to the position of the movable contact, the movable contact and the fixed contact are respectively and electrically connected with the positive electrode and the negative electrode of an elevator power supply through power supply cables, and the power supply cables are also connected with an elevator driving motor in series. The utility model adopts the above structure lifting machine tailwheel maintenance is with quick-open access door sets up the maintenance door on the lifting machine casing through the hasp lock, can open the maintenance door fast, and after opening the maintenance door, movable contact and fixed contact separation, the supply cable disconnection, lifting machine stop work has avoided the safety impact that electrified maintenance brought.

Description

Quick-opening access door for maintaining tail wheel of elevator

Technical Field

The utility model relates to a conveyer technique especially relates to a lifting machine tailwheel maintenance is with quick-open access door.

Background

The lifting machine is used as a vertical conveying device, has the advantages of large lifting height, stable lifting, small occupied area, good sealing performance and the like, and is widely applied to grain, feed and seed processing enterprises. The material taking machine comprises a machine body, a head wheel serving as a driving wheel is installed at the upper end inside the machine body, a tail wheel serving as a driven wheel is installed at the lower end, a chain is connected to the outer sides of the head wheel and the tail wheel, the chain can move along with the rotation of the head wheel, and a hopper installed between two hanging chains is used for taking materials from the tail of the machine and conveying the materials to a machine head. The tail wheel is used as an important transmission component, and needs to be overhauled after a period of operation, so that the machine is prevented from being out of order. When the existing tail pulley is overhauled, the side plate of the elevator needs to be disassembled, then the elevator is maintained, and after the maintenance is finished, the side plate is welded on the elevator or fixed on the elevator through screws, so that the operation is more complicated, and the maintenance time is prolonged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lifting machine tailwheel maintenance is with quick-open access door sets up the maintenance door through the hasp lock on the lifting machine casing body, can open the maintenance door fast, and after opening the maintenance door, movable contact and fixed contact separation, supply cable disconnection, lifting machine stop work have avoided the safety impact that electrified maintenance brought.

In order to achieve the purpose, the utility model provides a quick-opening access door for maintaining a tail pulley of a hoisting machine, which comprises a maintenance door arranged on a shell of the hoisting machine corresponding to the tail pulley of the hoisting machine, wherein one end of the maintenance door is rotationally connected with the shell of the hoisting machine through a hinge, and the other end of the maintenance door is connected with the shell of the hoisting machine through a hasp lock;

one side of the maintenance door facing the elevator shell is provided with a movable contact of a contact switch, the position of the elevator shell corresponding to the movable contact is provided with a fixed contact, the movable contact and the fixed contact are respectively and electrically connected with the positive electrode and the negative electrode of an elevator power supply through power supply cables, and the power supply cables are also connected with an elevator driving motor in series.

Preferably, the contact switch is also connected in parallel with a test switch via a test cable, the test switch being fixed to a side of the service door facing the hoist housing.

Preferably, a pipe clamp is further fixed on one side, facing the elevator shell, of the maintenance door, and a threading pipe for threading the power supply cable and the test cable is clamped inside the pipe clamp.

Preferably, the maintenance door comprises a frame defined by angle steel and a door plate fixed on the frame, and the door plate is a steel plate.

Preferably, the angle iron opens in a direction toward the elevator housing, the movable contact is fixed to an opening side of the angle iron, a support rod is fixed to a position of the elevator housing corresponding to the angle iron, and the fixed contact is fixed to the support rod.

Preferably, a handle is fixed to a side of the service door facing away from the lifter housing.

Therefore, the utility model adopts the above structure the lifting machine tailwheel maintenance is with quick open access door sets up the maintenance door through the hasp lock on the lifting machine casing body, can open the maintenance door fast, and after opening the maintenance door, movable contact and fixed contact separation, supply cable disconnection, lifting machine stop work have avoided the safety impact that electrified maintenance brought.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural view of a quick-opening access door for maintaining a tail pulley of a hoisting machine according to an embodiment of the present invention;

fig. 2 is the utility model discloses an embodiment a maintenance of lifting machine tailwheel is with A enlarged picture of department of quick open access door.

Fig. 3 is the utility model discloses an embodiment is a circuit diagram of quick open access door for maintenance of lifting machine tailwheel.

Wherein: 1. a hoist housing; 2. a hasp lock; 3. repairing the door; 30. a handle; 31. angle steel; 4. a contact switch; 40. a fixed contact; 41. a movable contact is provided.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed embodiments and the specific operation processes are provided, but the protection scope of the present invention is not limited to the present embodiment.

Fig. 1 is a schematic structural view of a quick-opening access door for maintaining a tail pulley of a hoist according to an embodiment of the present invention, fig. 2 is an enlarged view of a position a of the quick-opening access door for maintaining the tail pulley of the hoist according to an embodiment of the present invention, fig. 3 is a circuit diagram of the quick-opening access door for maintaining the tail pulley of the hoist according to an embodiment of the present invention, as shown in the figure, the structure of the present invention includes a maintenance door 3 corresponding to the tail pulley of the hoist arranged on a hoist housing 1, one end of the maintenance door 3 is rotatably connected with the hoist housing 1 through a hinge, and the other end is connected with the hoist housing 1 through a hasp lock 2;

one side of the maintenance door 3 facing the elevator housing 1 is provided with a movable contact 41 of the contact switch 4, the elevator housing 1 is provided with a fixed contact 40 at a position corresponding to the movable contact 41, the movable contact 41 and the fixed contact 40 are respectively and electrically connected with the positive electrode and the negative electrode of an elevator power supply through power supply cables, and the power supply cables are also connected with an elevator driving motor in series. Preferably, the angle steel 31 is opened toward the direction of the lifter housing 1, the movable contact 41 is fixed on the opened side of the angle steel 31, a support rod is fixed on the lifter housing 1 corresponding to the position of the angle steel, and the fixed contact 40 is fixed on the support rod, so as to align the movable contact 41 and the fixed contact 40.

Preferably, the contact switch 4 is further connected in parallel with a test switch through a test cable, the test switch is fixed on one side, facing the shell 1 of the elevator, of the maintenance door 3, the test switch can be closed after maintenance is finished, the elevator driving motor is powered on to perform test operation, and the test switch and the maintenance door 3 can be closed after the elevator driving motor operates normally. The contact switch 4 of this embodiment is further connected in parallel with the working switch, and is used for turning on the working switch during normal operation to work normally, and turning off the normal switch and the test switch during maintenance.

Preferably, a pipe clamp is further fixed on one side of the maintenance door 3 facing the elevator casing 1, a threading pipe for threading the power supply cable and the test cable is clamped inside the pipe clamp, internal routing is achieved, the external structure of the elevator is not affected, and the structures of the pipe clamp and the threading pipe and the connection mode between the structures are common knowledge in the field, meanwhile, the routing mode of the threading pipe inside the casing is multiple, so that limitation is not imposed on the routing mode.

Preferably, the maintenance door 3 includes a frame surrounded by angle steel 31 and a door plate fixed on the frame, and the door plate is a steel plate and has higher strength. A handle 30 is fixed on one side of the maintenance door 3 departing from the lifter housing 1, so that the maintenance door is convenient to open.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a quick-open access door is used in maintenance of lifting machine tailwheel which characterized in that: the maintenance door is arranged on a shell of the lifting machine corresponding to a tail pulley of the lifting machine, one end of the maintenance door is rotatably connected with the shell of the lifting machine through a hinge, and the other end of the maintenance door is connected with the shell of the lifting machine through a hasp lock;

2. The quick-opening access door for maintaining the tail pulley of the hoisting machine as claimed in claim 1, wherein: the contact type switch is further connected with a test switch in parallel through a test cable, and the test switch is fixed on one side, facing the shell of the lifting machine, of the maintenance door.

3. The quick-opening access door for maintaining the tail pulley of the hoisting machine as claimed in claim 2, wherein: and one side of the maintenance door, which faces the elevator shell, is also fixedly provided with a pipe clamp, and a threading pipe for passing through the power supply cable and the test cable is clamped inside the pipe clamp.

4. The quick-opening access door for maintaining the tail pulley of the hoisting machine as claimed in claim 3, wherein: the maintenance door comprises a frame defined by angle steel and a door plate fixed on the frame, wherein the door plate is a steel plate.

5. The quick-opening access door for maintaining the tail pulley of the hoisting machine as claimed in claim 4, wherein: the angle steel faces to the opening of the direction of the lifter shell, the movable contact is fixed on the opening side of the angle steel, a supporting rod is fixed on the position, corresponding to the angle steel, of the lifter shell, and the fixed contact is fixed on the supporting rod.

6. The quick-opening access door for maintaining the tail pulley of the hoisting machine as claimed in claim 5, wherein: and a handle is fixed on one side of the maintenance door, which deviates from the shell of the lifting machine.