Tackle with fault protection device
阅读说明：本技术 一种带故障保护装置的滑车 (Tackle with fault protection device ) 是由 徐剑 张东 倪锋 于 2019-10-31 设计创作，主要内容包括：本发明公开了一种带故障保护装置的滑车,所述滑车包括：底板,所述底板设置在所述滑车的上方；牵引挡头,两个所述牵引挡头对称设置在所述底板的顶部两端；电缆承架,所述电缆承架设置在所述底板的下方；镀锌管,所述镀锌管设置在所述底板与所述电缆承架之间；保护单元,所述保护单元设置在所述电缆承架的正中间,且所述保护单元的一端设置在所述底板上。达到了在滑车出现故障的第一时间停机,避免拉断或挤坏电缆,很好地提供了故障初期阶段的报警提示,进而避免故障扩大化的技术效果。(The invention discloses a pulley with a fault protection device, which comprises: a bottom plate disposed above the sled; the two traction blocking heads are symmetrically arranged at two ends of the top of the bottom plate; the cable bearing frame is arranged below the bottom plate; the galvanized pipe is arranged between the bottom plate and the cable bearing frame; the protection unit is arranged in the middle of the cable bearing frame, and one end of the protection unit is arranged on the bottom plate. The tackle is stopped at the first time when the tackle breaks down, the cable is prevented from being broken or damaged by squeezing, the alarm prompt at the initial stage of the failure is well provided, and the technical effect of failure enlargement is further avoided.)
1. A tackle with a fault protection device, the tackle including:
a bottom plate disposed above the sled;
the two traction blocking heads are symmetrically arranged at two ends of the top of the bottom plate;
the cable bearing frame is arranged below the bottom plate;
the galvanized pipe is arranged between the bottom plate and the cable bearing frame;
the protection unit is arranged in the middle of the cable bearing frame, and one end of the protection unit is arranged on the bottom plate.
2. The sled of claim 1, further comprising:
the bearing pulley, two couples the bearing pulley symmetry sets up the top of bottom plate, wherein, every is to the bearing pulley has two pulleys, is located respectively the inside and outside both sides of bottom plate top can freely slide in the zinc-plated track.
3. The sled of claim 1, further comprising:
the first through hole is arranged on one side of the middle part of the bottom plate;
and the second through hole is arranged on the other side of the middle part of the bottom plate and is symmetrically arranged with the first through hole.
4. The sled of claim 3, further comprising:
the first steel wire rope penetrates through the first through hole;
the second steel wire rope penetrates through the second through hole;
traction is transmitted between the pulleys through the first steel wire rope and the second steel wire rope.
5. The pulley of claim 1, wherein the cable support is a set of curved surfaces that can swing left and right, and the cable support is wound with a cable.
6. The tackle of claim 1, wherein the protection unit further includes:
a limiting base;
the normally closed contact is arranged inside the limiting base;
and the limiting long handles are positioned on two sides of the limiting base.
7. The sled of claim 5, wherein the cable bearer has a first state and a second state:
when the cable bearing frame is in the first state, a certain distance is reserved between the arc-shaped curved surface of the cable bearing frame and the two ends of the limiting long handle, and the normally-closed contact is closed;
when the cable bearing frame is in the second state, the arc-shaped curved surface of the cable bearing frame touches the two ends of the limiting long handle, and the normally closed contact is disconnected.
8. The trolley of claim 1 wherein the galvanized pipe is a hollow pipe structure.
9. The tackle of claim 8, wherein the galvanized pipe further includes:
and the interlocking cable is laid inside the galvanized pipe, wherein one end of the interlocking cable is connected with the normally closed contact, and the other end of the interlocking cable is externally connected to a control circuit of the discharging car.
10. The tackle of claim 1, wherein the two towing lugs are circular in shape and are welded to the top of the base plate at opposite ends thereof.
Technical Field
The invention relates to the technical field of automatic control equipment on an ore tank, in particular to a tackle with a fault protection device.
Background
The movable discharging car is widely applied to an ore tank, has the function of conveying different materials into a specified bin, is mainly driven by a three-phase asynchronous motor during walking, and is mainly powered and controlled by the following aspects: galvanized rail, movable pulley, power cable, control cable, traction steel wire rope, etc. The galvanized track is fixedly arranged beside the belt conveyor, a movable cable pulley is placed in the track, and then a cable bearing frame is placed on the pulley and extends out in a wavy manner. When the bicycle runs in one direction, the pulley connected with the second pulley and the third pulley is pulled through the traction steel wire rope, and when the bicycle runs in the other direction, the baffle at the position of the first pulley pushes the upper stop head of the pulley to push the pulley.
However, in the process of implementing the technical solution in the embodiment of the present invention, the applicant of the present invention finds that the above prior art has at least the following technical problems:
Disclosure of Invention
The embodiment of the invention provides a pulley with a fault protection device, which is used for solving the technical problems that in the prior art, the cable pulley is jammed due to the fact that the bearing force of a movable cable pulley is continuously increased in the pushing process, the cable pulley is extruded to be damaged, and the cable is broken due to the fact that a steel wire rope binding head is easy to loosen or break in the traction process, so that the fault shutdown is caused, and the normal feeding of a blast furnace is seriously influenced. The tackle is stopped at the first time when the tackle breaks down, the cable is prevented from being broken or damaged by squeezing, the alarm prompt at the initial stage of the failure is well provided, and the technical effect of failure enlargement is further avoided.
In order to solve the above problem, an embodiment of the present invention provides a tackle with a fault protection device, where the tackle includes: a bottom plate disposed above the sled; the two traction blocking heads are symmetrically arranged at two ends of the top of the bottom plate; the cable bearing frame is arranged below the bottom plate; the galvanized pipe is arranged between the bottom plate and the cable bearing frame; the protection unit is arranged in the middle of the cable bearing frame, and one end of the protection unit is arranged on the bottom plate.
Preferably, the tackle further includes: the bearing pulley, two couples the bearing pulley symmetry sets up the top of bottom plate, wherein, every is to the bearing pulley has two pulleys, is located respectively the inside and outside both sides of bottom plate top can freely slide in the zinc-plated track.
Preferably, the tackle further includes: the first through hole is arranged on one side of the middle part of the bottom plate; and the second through hole is arranged on the other side of the middle part of the bottom plate and is symmetrically arranged with the first through hole.
Preferably, the tackle further includes: the first steel wire rope penetrates through the first through hole; the second steel wire rope penetrates through the second through hole; traction is transmitted between the pulleys through the first steel wire rope and the second steel wire rope.
Preferably, the cable bearer is a group of arc-shaped curved surfaces which can swing left and right, and the cable is wound on the cable bearer.
Preferably, the protection unit further includes: a limiting base; the normally closed contact is arranged inside the limiting base; and the limiting long handles are positioned on two sides of the limiting base.
Preferably, the cable bearer has a first state and a second state: when the cable bearing frame is in the first state, a certain distance is reserved between the arc-shaped curved surface of the cable bearing frame and the two ends of the limiting long handle, and the normally-closed contact is closed; when the cable bearing frame is in the second state, the arc-shaped curved surface of the cable bearing frame touches the two ends of the limiting long handle, and the normally closed contact is disconnected.
Preferably, the galvanized pipe is of a hollow pipe structure.
Preferably, the galvanized pipe further comprises: and the interlocking cable is laid inside the galvanized pipe, wherein one end of the interlocking cable is connected with the normally closed contact, and the other end of the interlocking cable is externally connected to a control circuit of the discharging car.
Preferably, the two pulling stoppers are circular in shape and welded at two ends of the top of the bottom plate.
One or more technical solutions in the embodiments of the present invention at least have one or more of the following technical effects:
the embodiment of the invention provides a pulley with a fault protection device, which comprises: a bottom plate disposed above the sled; the two traction blocking heads are symmetrically arranged at two ends of the top of the bottom plate; the cable bearing frame is arranged below the bottom plate; the galvanized pipe is arranged between the bottom plate and the cable bearing frame; the protection unit is arranged in the middle of the cable bearing frame, and one end of the protection unit is arranged on the bottom plate. When the pulley is in traction movement, if the pulley is blocked, the steel wire rope can be forcibly pulled, if the steel wire rope is still broken when the pulley is not pulled, so that a cable between the pulley and the pulley is gradually straightened by the wave shape, the cable bearing frame of the blocked pulley can swing to touch the limiting long handle when the pulley is straightened to a certain degree, the pulley is stopped at the first time when a fault occurs, the cable is prevented from being broken, when the traction blocking head between the pulleys is in the process of pushing in contact, if the pulley is blocked, the pulley at the rear end continues to push forwards, the pulley can swing to the limiting long handle on the other side of the pulley cable bearing frame to cause the stop, the cable is prevented from being crushed, and the technical effects of well providing alarm prompt at the initial stage of the fault and further avoiding fault expansion are achieved. The movable cable pulley further solves the technical problems that in the pushing process of the movable cable pulley in the prior art, due to the fact that the bearing force is continuously increased, the pulley is blocked, the cable pulley is extruded to be damaged, the steel wire rope binding head is easy to loosen or break in the traction process, the cable is broken, the fault shutdown is caused, and the normal feeding of a blast furnace is seriously influenced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a tackle with a fault protection device provided in an embodiment of the invention.
Reference numerals: the device comprises a
Detailed Description
The embodiment of the invention provides a pulley with a fault protection device, which is used for solving the technical problems that in the prior art, the cable pulley is jammed due to the fact that the bearing force of a movable cable pulley is continuously increased in the pushing process, the cable pulley is extruded to be damaged, and the cable is broken due to the fact that a steel wire rope binding head is easy to loosen or break in the traction process, so that the fault shutdown is caused, and the normal feeding of a blast furnace is seriously influenced.
The technical scheme in the embodiment of the invention has the following overall structure: a bottom plate disposed above the sled; the two traction blocking heads are symmetrically arranged at two ends of the top of the bottom plate; the cable bearing frame is arranged below the bottom plate; the galvanized pipe is arranged between the bottom plate and the cable bearing frame; the protection unit is arranged in the middle of the cable bearing frame, and one end of the protection unit is arranged on the bottom plate. When the pulley is in traction movement, if the pulley is blocked, the steel wire rope can be forcibly pulled, if the steel wire rope is still broken when the pulley is not pulled, so that a cable between the pulley and the pulley is gradually straightened by the wave shape, the cable bearing frame of the blocked pulley can swing to touch the limiting long handle when the pulley is straightened to a certain degree, the pulley is stopped at the first time when a fault occurs, the cable is prevented from being broken, when the traction blocking head between the pulleys is in the process of pushing in contact, if the pulley is blocked, the pulley at the rear end continues to push forwards, the pulley can swing to the limiting long handle on the other side of the pulley cable bearing frame to cause the stop, the cable is prevented from being crushed, and the technical effects of well providing alarm prompt at the initial stage of the fault and further avoiding fault expansion are achieved.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
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