CN211419263U

CN211419263U - Elevator running gear

Info

Publication number: CN211419263U
Application number: CN201921612479.9U
Authority: CN
Inventors: 张德崑
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-09-04
Anticipated expiration: 2029-09-26

Abstract

An elevator walking device belongs to the field of hydraulic elevators. An elevator walking device is characterized in that an elevator lift car (2) and a guide rail (3) are installed in an elevator shaft (1), an oil cylinder (4) is fixedly installed on the elevator lift car (2), a piston rod (5) in the oil cylinder (4) and the guide rail (3) are provided with the elevator walking device, a friction plate, a movable friction plate, a wedge block, a cam pressing plate, a cam shaft and a cam are fixedly arranged in a machine case, the cam is composed of two symmetrical curved surfaces, a movable iron of an electromagnet is connected with the wedge block, one end of the wedge block is large, the other end of, can move up and down, the casting die is fixedly installed with the piston rod and the guide rod, the pin is connected with the casting die and the connecting rod, the other end of the connecting rod is connected with the arm rod, the arm rod is fixedly connected with the cam, the piston rod extends out, the cam compresses the guide rail through the cam pressing plate, the wedge block and the movable friction plate, the elevator walking device is not moved, the elevator car connected with the oil cylinder moves upwards, when the piston rod retracts, the cam rotates back to the small diameter position, and the elevator walking device moves upwards along with the piston rod.

Description

Elevator running gear

Technical Field

The utility model belongs to the hydraulic elevator field.

Background

The robot elevator simulates the climbing action of human beings, a telescopic block is arranged at the head of a piston rod of two oil cylinders, a stop block is arranged on a guide rail, and the stop block on the guide rail is alternatively pedaled by the telescopic block. The invention discloses a robot elevator, which drives a car connected with an oil cylinder to move upwards, needs a complete and complex electrical system, is not economical and is not easy to determine the size, and needs a set of simple and practical travelling mechanism with a guide rail and no need of installing a stop block.

The invention content is as follows:

the invention aims to lock the head of a piston rod with a guide rail by using the simplest mechanical mechanism, so that the piston rod stretches and retracts to drive a lift car connected with an oil cylinder to move.

The utility model provides a key technical problem take following scheme to realize: an elevator walking device is characterized in that an elevator car (2) and a guide rail (3) are installed in an elevator shaft (1), an oil cylinder (4) is fixedly installed on the elevator car (2), a piston rod (5) in the oil cylinder (4) and the guide rail (3) are provided with the elevator walking device, a friction plate, a movable friction plate, a wedge block, a cam pressing plate, a cam shaft and a cam are installed in a machine case, the cam is composed of two symmetrical curved surfaces, a movable iron mechanism of an electromagnet is connected with the wedge block, one end of the wedge block is large and the other end of the wedge block is small and becomes a wedge shape and can move up and down, a pressing piece is fixedly installed with the piston rod and a guide rod, a.

The piston rod stretches out, the cam compresses the guide rail through the cam pressing plate, the wedge block and the movable friction plate, the elevator walking device is not moved, the elevator car connected with the oil cylinder moves upwards, when the piston rod retracts, the cam rotates back to the small-diameter position, and the elevator walking device moves upwards along with the piston rod.

When the piston rod extends out and the elevator walking device moves downwards along with the piston rod, the piston rod retracts, the symmetrical surfaces of the cams press the cam pressing plate, the wedge block and the movable friction plate locking track, and the elevator car connected with the oil cylinder moves downwards.

The utility model discloses it is to show the advantage: 1. the electromagnet is electrified to enable the wedge block to move downwards, so that a large gap is formed between the cam pressing plate and the wedge block, the cam can rotate through the largest radial electromagnet, the power-off wedge block moves upwards by a small gap, and therefore the track can be locked by the cam in the forward and reverse rotation modes.

2. A stop block and an auxiliary mechanism are not needed to be arranged on the track, the machine case can lock the track at any time, and the piston rod extends out or retracts to drive the elevator connected with the oil cylinder to move up or down.

Drawings

Fig. 1 is an elevator installation overview;

FIG. 2 is an enlarged view of a portion of FIG. 1 at C;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a cross-sectional view B-B of FIG. 3;

fig. 5 is a perspective view.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:

as shown in figure 1, an elevator car 2 and a guide rail 3 are installed in an elevator well 1, an oil cylinder 4 is fixedly installed on the elevator car 2, a piston rod 5 in the oil cylinder and an elevator walking device are installed on the guide rail 3, as shown in figures 3 and 4, an electromagnet 9 and a guide sleeve 11 are fixedly installed outside a machine case 13, a guide rod 7 can slide up and down in the guide sleeve 11, a fixed friction plate 12 which is immovable is installed in the machine case 13, a movable friction plate 20 and a wedge block 17 are installed at a position separated from a rail 3, a cam pressing plate 18 can move left and right in the machine case 13, the upper end of the wedge block 17 is connected with the movable iron in the electromagnet 9, the lower end of the wedge block is contacted with a spring 19, the wedge block 17 is a straight surface close to the movable friction plate 20, a slope is close to the cam pressing plate 18, the slope corresponds to the cam pressing plate 18, the other surface of the cam pressing plate 18, the cam shaft 15 passes through the long pressing plate 21 of the cam 16 of the case 13, the cam 16 can rotate on the cam shaft 15, the arm lever 14 is fixedly connected with the cam 15, the arm lever 14 is connected with the connecting rod 10 by the pin shaft 8, the other end of the connecting rod 10 is connected with the pressing piece 6 by the pin shaft 8, the piston rod 5 of the guide rod 7 is fixedly connected on the pressing piece 6, and the case 13 is connected on the guide rail 3 by the long pressing plate 21 and the short pressing plate 22. When the piston rod 5 extends out, the guide rod 7 guides, the piston rod 5 cannot be unstable due to too long extension, the pressing piece 6 presses down the connecting rod 10 through the pin shaft 8 to enable the arm rod 14 to rotate and drive the cam 16 to rotate, the cam curved surface presses the cam pressing plate 18, the wedge block 17 and the dynamic friction plate 20 to be locked on the guide rail 3, and when the piston rod 5 extends out, the elevator car 2 connected with the oil cylinder 4 moves upwards. When the piston rod 5 retracts, the pressing piece 6 drives the connecting rod 10 and the arm rod 16, so that the cam rotates reversely to a cam direction passing short position, the movable friction plate 18 does not press the guide rail 3 any more, and the chassis 13 moves upwards along with the piston rod to complete a cycle. When the piston rod 5 is extended again, the mechanism repeats the above cycle of action, moving the elevator car 2 up step by step. When the electromagnet 9 is energized, the moving iron of the electromagnet 9 presses down the wedge 17, so that there is a large clearance between the cam presser 18 and the wedge 17, the piston rod 5 is extended, and the cam 16 rotates through the maximum radial direction. After the electromagnet 9 is powered off, the spring 19 jacks up the wedge block 17, the minimum clearance is restored between the cam pressing plate 18 and the wedge block 17, when the piston rod 5 extends, the cam 16 rotates to a small radial position, at the moment, the cam 16 does not press the cam pressing plate 18 and the wedge block 17 to move the friction plate 20, the guide rail 3 is not pressed, and the case 13 moves downwards along with the extension of the piston rod. When the piston rod 5 retracts, the connecting rod 10 drives the arm rod 14 to enable the cam 16 to rotate, the pressing cam pressing plate 18, the wedge block 17 and the dynamic friction plate 20 are locked with the guide rail 3 and are not moved, and when the piston rod 5 retracts, the elevator car 2 connected with the oil cylinder 4 moves downwards, so that the elevator car 2 moves downwards step by step in a circulating motion mode. Therefore, the elevator walking device can be locked with the guide rail alternatively to complete the up-and-down movement of the elevator car.

Claims

1. An elevator walking device, an elevator car (2) and a guide rail (3) are arranged in an elevator well (1), and the elevator walking device is characterized in that an oil cylinder (4) is fixedly arranged on the elevator car (2), a piston rod (5) in the oil cylinder (4) and the guide rail (3) are provided with the elevator walking device, a friction plate, a movable friction plate, a wedge block, a cam pressing plate, a cam shaft and a cam are arranged in a machine case, the cam is composed of two symmetrical curved surfaces, the movable iron of an electromagnet is connected with the wedge block, one end of the wedge block is large and the other end of the wedge block is small and can move up and down, the pressing piece is fixedly arranged with the piston rod and a guide rod, a pin is connected with the pressing piece and a connecting rod, the other end of the connecting rod is connected with an arm rod, the arm rod is fixedly connected with the cam, the piston rod extends out, the cam, the elevator traveling device moves upward along with the piston rod.

2. The elevator walker as claimed in claim 1, wherein the wedge moves downward, the cam presser has a larger clearance from the wedge, the cam is allowed to rotate in the maximum radial direction, the wedge then moves upward, the cam presser and the wedge return to a smaller clearance, and when the piston rod is extended and the elevator walker moves downward with the piston rod, the piston rod is retracted, the cam symmetry plane presses against the cam presser, the wedge, the movable friction plate locking rail, and the elevator car connected to the cylinder moves downward.