CN214568639U

CN214568639U - Scrape stifled alarm device of trigger anti-foreign matter card

Info

Publication number: CN214568639U
Application number: CN202120525733.2U
Authority: CN
Inventors: 黄俊杰; 周明艳; 万厚兵; 向华兴
Original assignee: Hubei Typhon Precision Machinery Co ltd
Current assignee: Hubei Typhon Precision Machinery Co ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2021-11-02
Anticipated expiration: 2031-03-12

Abstract

The utility model provides a scrape trigger and prevent stifled alarm device of foreign matter card, includes the tensioning screw, and tensioning screw one end is connected with the bearing frame slide, and the other end freely passes the afterbody casing, and the partial cover that the tensioning screw is located the afterbody casing outside has compression spring, is fixed with the baffle on the tensioning screw of the compression spring other end, and the pick-up plate is installed to baffle one end, and the pick-up plate is just right with the sensor. The utility model provides a pair of scrape trigger and prevent stifled alarm device of foreign matter card can be shut down fast after having the foreign matter card to go into.

Description

Scrape stifled alarm device of trigger anti-foreign matter card

Technical Field

The utility model relates to an alarm device, especially a scrape trigger and prevent stifled alarm device of foreign matter card.

Background

The scraper conveyor is a device which is very common in the industry of conveying machinery and is used for transferring materials through a driving wheel, a driven wheel and a conveying chain. When entering the foreign matter that the size is great and the texture is harder in the scraper blade machine, though the equipment has been equipped with motor comprehensive protection appearance, can not cause the influence to the motor, if the chain fracture of scraper blade machine before the motor jump stops, will cause bigger loss.

Disclosure of Invention

The utility model aims to solve the technical problem that a scrape stifled alarm device of trigger anti-foreign matter card is provided, can make when having the foreign matter card to shut down fast the trigger.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a scrape trigger and prevent stifled alarm device of foreign matter card, includes the tensioning screw, and tensioning screw one end is connected with the bearing frame slide, and the other end freely passes the afterbody casing, and the partial cover that the tensioning screw is located the afterbody casing outside has compression spring, is fixed with the baffle on the tensioning screw of the compression spring other end, and the pick-up plate is installed to baffle one end, and the pick-up plate is just right with the sensor.

The baffle is arranged on the sliding rail in a sliding mode.

The utility model relates to a scrape trigger and prevent stifled alarm device of foreign matter card has following technological effect: get into hard foreign matter and lead to carrying the local arch camber of chain in scraping the trigger for the relative shrink of whole platform scraper conveyor chain, the shrink of carrying the chain can arouse the compression spring shrink of afterbody, so far, the pick-up plate that links to each other with the compression spring baffle will break away from the detection range who is fixed in the sensor of afterbody, and the sensor finally can send a signal and make and scrape the trigger and shut down, thereby avoids causing the damage to equipment. In addition, in order to prevent the tail detection plate from being separated from the detection range of the sensor when the scraper machine is started, the working mode of the sensor can be set to be a working state after the scraper machine is started and then enters a delayed time.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a schematic view of the present invention.

Fig. 2 is a schematic view of the first state of the present invention (the spring is compressed).

Fig. 3 is a schematic view of the second state of the present invention (the spring is compressed).

In the figure: tensioning screw 1, bearing frame slide 2, afterbody casing 3, compression spring 4, baffle 5, pick-up plate 6, sensor 7, slide rail 8, foreign matter 9, conveying chain 10.

Detailed Description

As shown in figure 1, the foreign matter blocking prevention alarm device for the scraper conveyor comprises two tensioning screws 1, one end of each tensioning screw 1 is connected with a bearing seat sliding plate 2 on one side, and the bearing seat sliding plates 2 slide back and forth along a sliding seat to further adjust the tightness of a chain. The other end of each tensioning screw rod 1 freely penetrates through the tail shell 3, a compression spring 4 is sleeved on the part, located outside the tail shell 3, of each tensioning screw rod 1, a baffle plate 5 is fixed on the tensioning screw rod 1 at the other end of each compression spring 4, and the baffle plates 5 are arranged on the sliding rails 8 in a sliding mode. The outer end of the baffle 5 is welded with a detection plate 6, and the detection plate 6 is opposite to the sensor 7. The model of the sensor 7 is LJC30A 3-H-J/EZ. The sensor 7 is connected with a controller, and the controller is connected with an alarm.

The working principle and the process are as follows: when hard foreign matter enters the scraper machine to cause the scraper machine to be blocked, the following two possibilities exist:

1) the foreign matter entering the scraper is slightly smaller than the width of the inner cavity of the scraper, and can be conveyed to the head along the material conveying direction, as shown in fig. 2, when the foreign matter 9 is clamped between the head wheel and the conveying chain 10, the conveying chain at the position can be extended relative to the normal operation. The chain extension of this department can transmit this elongation to the afterbody to make the compression spring pressurized of afterbody, pick-up plate 6 breaks away from the detection range of sensor 7, and sensor 7 can spread the signal this moment and give the controller, and the controller makes the alarm report to the police on the one hand, and on the other hand makes equipment auto-stop, avoids causing the damage to equipment.

2) The size of the foreign matter entering the scraper conveyor is larger than the height and the width of the inner cavity of the scraper conveyor, and the foreign matter can be clamped at the feed inlet at the moment, as shown in fig. 3, when the foreign matter 9 is clamped at the feed inlet, the conveying chain 10 at the lower part of the position can be extended relatively to the normal operation. The chain extension of this department can transmit this elongation to the afterbody to make the compression spring pressurized of afterbody, pick-up plate 6 breaks away from sensor 7's detection scope, sensor 7 can spread the signal this moment and make equipment auto-stop, avoid causing the damage to equipment.

Claims

1. The utility model provides a scrape stifled alarm device of trigger anti-foreign matter card which characterized in that: including tensioning screw (1), tensioning screw (1) one end is connected with bearing frame slide (2), and the other end freely passes afterbody casing (3), and the partial cover that tensioning screw (1) is located afterbody casing (3) outside has compression spring (4), is fixed with baffle (5) on tensioning screw (1) of the compression spring (4) other end, and pick-up plate (6) are installed to baffle (5) one end, and pick-up plate (6) are just right with sensor (7).

2. The foreign matter blockage prevention alarm device for the scraper conveyor as claimed in claim 1, wherein the device comprises: the baffle (5) is arranged on the sliding rail (8) in a sliding mode.