CN212301194U

CN212301194U - Synchronous lifting device for float-sink experimental coal tray

Info

Publication number: CN212301194U
Application number: CN202021063126.0U
Authority: CN
Inventors: 武宾宾; 王莹; 孙建军; 李鹏; 王瑞; 王博; 张风宾
Original assignee: Beijing Yunhui Intelligent Technology Co ltd
Current assignee: Beijing Yunhui Intelligent Technology Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-01-05
Anticipated expiration: 2030-06-10

Abstract

The utility model discloses a synchronous hoisting device of experiment coal scuttle floats and sinks, its box internal portion is equipped with the driving gear and the driven gear of the same modulus, driving gear and driven gear intermeshing transmission, the driving gear wears to be equipped with by motor drive's major axis, correspondingly, driven gear wears to establish the minor axis, major axis and minor axis all overlap and are equipped with the hoisting wheel that is located the box outside and the same modulus, constitute the gear pair through the driving gear of the same modulus and driven gear, make two hoisting wheels of the same modulus coaxial with the gear pair produce synchronous reversal, make the hoisting wheel drive promote the heavy object and do synchronous reverse elevating movement under the drive of motor, realize that different density level coal promotes perpendicularly and lines up, overall drive structure is succinct, save installation space, wide application is in the coal tray synchronous lifting operation after weighing.

Description

Synchronous lifting device for float-sink experimental coal tray

Technical Field

The utility model belongs to coal inspection field, concretely relates to a float and sink experiment coal tray synchronous lifting device that is used for after coal floats and sinks to experiment weighing.

Background

The coal floating and sinking experiment is an important index for testing the coal quality. The research on coal floating and sinking experimental equipment is blank at present, and the synchronous lifting mechanism is not limited to: the screw rod lifter realizes synchronous lifting, the double hydraulic cylinders realize synchronous lifting, and the double motors realize synchronous lifting. The synchronous lifting of the screw rod is high in precision, but the mechanism is complex and the cost is high; although the hydraulic synchronous lifting can provide larger power output, a complex hydraulic system and manufacturing cost are still required for realizing synchronization; the synchronous lifting realized by using the double motors also has the problems of high cost and complex electrical control program.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a synchronous hoisting device of experimental coal panel that floats of synchronous hoisting drive mechanism succinct, synchronous hoisting stability and security height, possessing reverse locking.

In order to realize the above purpose, the utility model discloses a technical scheme be: the utility model provides a float and sink synchronous hoisting device of experiment coal tray, includes the box that comprises base and shroud, its characterized in that: a driving gear and a driven gear with the same modulus are assembled in the box body, and the driving gear and the driven gear are in meshed transmission; the driving gear penetrates through a long shaft driven by a motor, and correspondingly, the driven gear penetrates through a short shaft; the long shaft and the short shaft are sleeved with lifting wheels which are positioned on the outer side of the box body and have the same modulus.

Preferably, the major and minor axes are also connected to a locking mechanism for preventing reverse rotation or slippage thereof.

Preferably, the locking mechanism comprises a ratchet wheel and an elastic ratchet wheel claw, the ratchet wheel is sleeved on the long shaft and the short shaft, a tooth groove of the ratchet wheel contacts with the ratchet wheel claw, and the ratchet wheel claw is arranged on the side wall of the cover cap.

Preferably, a ratchet wheel cover for accommodating a spring is arranged on the outer side of the cover cap, and the spring pushes the ratchet wheel claw to abut against a tooth groove of the ratchet wheel.

Preferably, the motor is connected to the long shaft through a speed reducer.

Preferably, the lifting wheel is a sprocket or a pulley.

Implement the utility model discloses technical scheme constitutes the gear pair through the driving gear of the same modulus and driven gear, makes two hoisting wheels of the same modulus coaxial with the gear pair produce synchronous reversal, makes the hoisting wheel drive promotion heavy object do synchronous reverse elevating movement under the drive of motor, realizes that different density level coal promotes perpendicularly to queue up, and whole transmission structure is succinct, saves installation space, and the wide application is in the synchronous lifting operation of the coal tray after weighing. In addition, the locking mechanism realizes the one-way locking function of the lifting wheel, prevents the phenomena of reversal, slipping and the like of the long shaft and the short shaft, and improves the safety and the stability of the whole lifting device.

Drawings

Fig. 1 is a schematic structural diagram of a synchronous lifting device for a float-sink experiment coal tray.

FIG. 2 is a schematic sectional view of a motor drive gear and its long axis.

In the figure: 1-base, 2-shaft retainer, 3-cover, 4-motor, 5-reducer, 6-ratchet, 7-spring, 8-ratchet pawl, 9-ratchet cover, 10-driven gear, 11-short shaft, 12-bearing, 13-driving gear, 14-reverse rotation sprocket, 15-end cover screw, 16-end cover, 17-long shaft, 18-forward rotation sprocket.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 and 2, the synchronous lifting device for the float-sink experimental coal tray mainly comprises a gear pair, a ratchet 6, a chain wheel, a motor 4 and a speed reducer 5.

The gear pair is composed of two identical driving gears 13 and driven gears 10, the driven gears 10 are connected with a short shaft 11 through keys, one end of each gear 10 is tightly connected with a ratchet wheel 6, the other end of each ratchet wheel 6 is fixed by a shaft shoulder of the short shaft 11, and the other end of each driven gear 10 is fixed by a shaft retainer ring 2.

The two ends of the short shaft 11 are matched and connected with the bearing 12, the bearing 12 is pressed by the base 1 and the cover 3 together, and the base 1 and the cover 3 are connected together through bolts. A section of the stub shaft 11 extending out of the base is connected to a counter-rotating sprocket 14 by a key. One end face of the reverse rotation chain wheel 14 is blocked by a shaft shoulder of the short shaft 11, and the other end face is tightly pressed on an end cover 16 through an end cover screw 15 to be fixed.

The driving gear 13 of the gear pair is connected with the long shaft 17, the connection of the long shaft 17 is similar to that of the short shaft 11, the only difference is that the other end of the long shaft 17 extends out of a section of shaft to be connected with the speed reducer 5, and the speed reducer 5 is connected with the motor 4.

The ratchet wheel 6 and the corresponding ratchet wheel claw 8 penetrate through the cover 3 and are pressed by the spring 7, and the other end of the spring 7 is pressed and covered by the ratchet wheel cover 9.

The specific working process is as follows: when the motor 4 rotates, the power is transmitted to the reducer 5 and the long shaft 10, the other end of the long shaft directly transmits the power to the driving sprocket 18, meanwhile, the power is transmitted to the short shaft 11 through the gear pair, and the power is transmitted to the reverse sprocket 14 by the short shaft 11. In this way, synchronous reverse movement of the two sprockets 14 is achieved. Because the ratchet wheel 6 is arranged on the long shaft 17 and the short shaft 11, the function of locking in the opposite direction of unidirectional movement can be realized.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a float and sink synchronous hoisting device of experiment coal tray, includes the box that comprises base and shroud, its characterized in that: a driving gear and a driven gear with the same modulus are assembled in the box body, and the driving gear and the driven gear are in meshed transmission; the driving gear penetrates through a long shaft driven by a motor, and correspondingly, the driven gear penetrates through a short shaft; the long shaft and the short shaft are sleeved with lifting wheels which are positioned on the outer side of the box body and have the same modulus.

2. The synchronous lifting device of the float-sink experimental coal tray as claimed in claim 1, characterized in that: the long shaft and the short shaft are also connected with a locking mechanism for preventing the long shaft and the short shaft from reversing or slipping.

3. The synchronous lifting device of the float-sink experimental coal tray as claimed in claim 2, characterized in that: the locking mechanism comprises a ratchet wheel and an elastic ratchet wheel claw, the ratchet wheel is sleeved on the long shaft and the short shaft, a tooth groove of the ratchet wheel contacts with the ratchet wheel claw, and the ratchet wheel claw is arranged on the side wall of the cover cap.

4. The synchronous lifting device of the float-sink experimental coal tray as claimed in claim 3, characterized in that: the outer side of the cover cap is provided with a ratchet wheel cover for containing a spring, and the spring pushes a ratchet wheel claw to abut against a tooth groove of the ratchet wheel.

5. The synchronous lifting device of the float-sink experimental coal tray as claimed in claim 1, characterized in that: the motor is connected with the long shaft through a speed reducer.

6. The synchronous lifting device of the float-sink experimental coal tray as claimed in claim 1, characterized in that: the lifting wheel is a chain wheel or a belt wheel.