CN201080367Y - Force moment protector for impeller coal feeder - Google Patents

Abstract

Disclosed is a torque protector for an impeller coal feeder, relating to a work protection device for an impeller coal feeder. The utility model aims to solve the problems of big size, large material consumption, difficult processing and inconvenient installation of current torque protectors for impeller coal feeders. In the utility model, a message sending device(4) is fixedly installed under the torque arm bracket(1); two pressure plates(2) are arranged below the message sending device(4) and above a sleeve(14); two springs(6)are arranged inside the sleeve(14); the undersides of the pressure plates(2) contact with the upper sides of the springs(6); a travel switch(12)is arranged between the two springs(6); the sleeve(14) is installed in a sleeve bracket(3) which are fixedly connected with a first bottom bracket(7) and a second bottom bracket(9). The utility model is small in size, light in weight and reliable in operation, and is material-saving, convenient to process, easy to install, convenient to operate and use.

Description

The paddle coal feeder torque limiter

Technical field

The utility model relates to a kind of paddle coal feeder work fender guard.

Background technology

Paddle coal feeder is in pulling out the process of coal; impeller finger runs into foreign material such as stone, steel rope, iron wire, iron block, wooden unit, asbestos rope through regular meeting; the oldfashioned paddle coal feeder is not established fender guard, when impeller is blocked by foreign material, easily impeller tooth, driving device, main motor is damaged.The moment arm fender guard of existing paddle coal feeder is realized by the mechanical type safety coupling that mostly during the protection of safety pin formula coupler, pin is easily cut off, because the work characteristics of paddle coal feeder, its assembly space is very limited, changes the suitable complexity of pin and takes a lot of work.Also there is the adjustment sheet complexity in another kind of friction disk type coupler, adjusts the space effort; I am installed under the secondary conic reducer base by the paddle coal feeder work fender guard of the early stage development of company; because secondary conic reducer volume is big; the base size is big; corresponding torque limiter size is also big; exist materials used many, shortcomings such as processing difficulties, installation trouble.

The utility model content

The purpose of this utility model is for the torque limiter size that solves existing feeder is big, has that materials used is many, processing difficulties, installation trouble, safeguards inconvenient problem, and a kind of paddle coal feeder torque limiter is provided.

The utility model is by moment arm support 1, two arm of force pressing plates 2, bush support 3, signal transmitter 4, two fine setting terminal filaments 5, two springs 6, two lower supporters 7, two No. two lower supporters 9, regulate bolt 10, bolt 11, travel switch 12, two sleeves 14, upper nut 15 and lower nut 16 are formed, signal transmitter 4 is fixedly mounted on the bush support 3 below the moment arm support 1, signal transmitter 4 is provided with travel switch 12, two arm of force pressing plates 2 are installed in the top of two sleeves 14 respectively, be equipped with spring 6 in each sleeve 14, the following of two arm of force pressing plates 2 contacts with the top of two springs 6 respectively, bush support 3 is provided with upper nut 15, lower nut 16, bolt 11, two sleeves 14 are installed in the bush support 3, bush support 3 is captiveed joint with two No. two lower supporters 9 with two lower supporters 7 respectively, the below of two sleeves 14 is equipped with fine setting terminal filament 5, fine setting terminal filament 5 is threaded with sleeve 14, the top of terminal filament 5 contacts with spring 6, signal transmitter 4 is provided with regulates bolt 10 and bolt 11, and bolt 11 is provided with upper nut 15 and lower nut 16.

The utlity model has following beneficial effect: one, spring stiffness of the present utility model is to draw according to structure design and long-term practice aggregation of data; it is accurate and steady in a long-term undistorted to trigger moment; spring is provided with fine setting predetermincd tension device simultaneously; can require to regulate protection moment limit according to different atures of coal, mineral; this control apparatus is arranged on paddle coal feeder frame limit, and the staff adjusts simple to operation.Two, the utility model adopts the structure of two point double base, can measure the absolute moment values of every moving blade, and can reach the technical requirements of paddle coal feeder main shaft stress balance error.Three, it is little to the utlity model has volume, material province, installation in light weight, easy to process, easy, uses easy to maintenance, reliable advantage.

Description of drawings

Fig. 1 is an integral structure scheme drawing of the present utility model, and Fig. 2 is a left view of the present utility model.

The specific embodiment

The specific embodiment one: referring to Fig. 1 and Fig. 2, present embodiment is by moment arm support 1, two arm of force pressing plates 2, bush support 3, signal transmitter 4, two fine setting terminal filaments 5, two springs 6, two lower supporters 7, two No. two lower supporters 9, regulate bolt 10, bolt 11, travel switch 12, two sleeves 14, upper nut 15 and lower nut 16 are formed, signal transmitter 4 is fixedly mounted on the bush support 3 below the moment arm support 1, signal transmitter 4 is provided with travel switch 12, two arm of force pressing plates 2 are installed in the top of two sleeves 14 respectively, be equipped with spring 6 in each sleeve 14, the following of two arm of force pressing plates 2 contacts with the top of two springs 6 respectively, bush support 3 is provided with upper nut 15, lower nut 16, bolt 11, two sleeves 14 are installed in the bush support 3, bush support 3 is captiveed joint with two No. two lower supporters 9 with two lower supporters 7 respectively, the below of two sleeves 14 is equipped with fine setting terminal filament 5, fine setting terminal filament 5 is threaded with sleeve 14, the top of terminal filament 5 contacts with spring 6, signal transmitter 4 is provided with regulates bolt 10 and bolt 11, and bolt 11 is provided with upper nut 15 and lower nut 16.Two lower supporters 7 and two No. two lower supporters 9 are fixed on the frame 13 of paddle coal feeder.Pulling out when paddle coal feeder in the process of coal; when impeller finger runs into foreign material such as stone, steel rope, iron wire, iron block, wooden unit, asbestos rope through regular meeting; impeller quits work; motor is still rotating; at this moment the gear case of one-level bevel gear, impeller driving device 8 drawing force moment arm fender guards rotate towards the opposite sense of impeller rotation; the contact that moment arm support 1 drives signal transmitter 4 moves down; pressing plate 2 compression springs 6; when length of spring compressed arrives 10mm; travel switch 12 give a signals; motor stops operating, thereby reaches the purpose of preventive device.When on-site installation, can regulate terminal filament 5, adjust spring 6 predetermincd tensions, can require to regulate protection moment limit, the moment arm system is normally moved according to different atures of coal, mineral according to working load, practical operation situation.After moment arm pressing plate 2 adjusted to level attitude, regulate bolt 10 and adjust by position shown in Figure 2, the lower nut 16 on the bolt 11 is threaded to position shown in Figure 2 and locks upper nut 15 again, thereby makes this device smooth running.

Claims (1)

1. paddle coal feeder torque limiter; it is by moment arm support (1); two arm of force pressing plates (2); bush support (3); signal transmitter (4); two fine setting terminal filaments (5); two springs (6); two lower supporters (7); two No. two lower supporters (9); regulate bolt (10); bolt (11); travel switch (12); two sleeves (14); upper nut (15) and lower nut (16) are formed; it is characterized in that signal transmitter (4) is fixedly mounted on the following bush support (3) of moment arm support (1); signal transmitter (4) is provided with travel switch (12); two arm of force pressing plates (2) are installed in the top of two sleeves (14) respectively; be equipped with spring (6) in each sleeve (14); two arm of force pressing plates (2) following respectively with top contact of two springs (6); bush support (3) is provided with upper nut (15); lower nut (16); bolt (11); two sleeves (14) are installed in the bush support (3); bush support (3) is captiveed joint with two No. two lower supporters (9) with two lower supporters (7) respectively; the below of two sleeves (14) is equipped with fine setting terminal filament (5); fine setting terminal filament (5) is threaded with sleeve (14); the top of terminal filament (5) contacts with spring (6); signal transmitter (4) is provided with regulates bolt (10) and bolt (11), and bolt (11) is provided with upper nut (15) and lower nut (16).

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