CN210760753U

CN210760753U - Freight cableway brake device

Info

Publication number: CN210760753U
Application number: CN201921773839.3U
Authority: CN
Inventors: 武斌; 景文川; 彭宇洁; 王羽佳
Original assignee: State Grid Sichuan Electric Power Transmission And Transformation Construction Co ltd
Current assignee: State Grid Sichuan Electric Power Transmission And Transformation Construction Co ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-06-16
Anticipated expiration: 2029-10-22

Abstract

The utility model provides a freight transportation cableway brake equipment relates to the electric power construction field. When the running speed of the steel cable is out of control and the phenomenon of galloping occurs, the running speed of the steel cable for carrying goods can be gradually increased, and serious consequences can be caused. The utility model discloses it is equipped with the pulley to rotate on the base, the pulley has one side to be equipped with the speed-limiting wheel rather than coaxial setting at least, the side that the speed-limiting wheel is close to the pulley is equipped with outer convex, the side that the pulley was kept away from to the speed-limiting wheel is equipped with the support, the support is located on the base, it is equipped with the briquetting to rotate on the support, it is equipped with the pull rod to rotate on the briquetting, the other end and the speed-limiting wheel of pull rod rotate to be connected, the side that the pulley is close to the speed-limiting wheel rotates and is equipped with centrifugal hammer, be equipped with on the centrifugal hammer with outer convex complex, if cable wire speed out of control, the pulley rotational speed improves, the interior convex of centrifugal hammer beats on the outer convex of speed-limiting wheel, the speed-limiting wheel rotates and drives the briquetting.

Description

Freight cableway brake device

Technical Field

Relate to the electric power construction field, concretely relates to freight transportation cableway brake equipment.

Background

A cableway, also called a crane, a cable car, a cage, is a means of transportation for supporting and towing a passenger car or a truck by using a steel cable suspended in midair, and usually carries passengers or goods up and down on a rugged hillside, and has stations at the start and end points of the cableway, and supports for supporting the steel cable are built at intervals in the midway. The freight ropeway is a ropeway special for transporting goods, construction in mountainous areas is realized, and manual transportation is a great difficulty in restricting the construction period, particularly the influence of climate (much rain and snow) in the mountainous areas is difficult to reduce the construction cost and unsafe factors of the manual transportation, so that the ropeway transportation is an effective means for saving the construction cost and ensuring the construction progress.

In the process of running the steel cable, if the speed is out of control, for example, a speed regulating part fails, a runaway phenomenon is generated, the running speed of the steel cable for carrying goods is gradually increased, and serious consequences can be caused, the site space is narrow in the operation site of the freight cableway, a large-scale protection device is not installed in enough space, the freight cableway has the properties of temporality, short period and the like, the factors such as equipment cost, installation, transportation and the like are comprehensively considered, and a corresponding device is not available at present, so that the steel cable can be braked at the initial stage of the speed out of control.

Disclosure of Invention

The utility model aims at developing a freight transport cableway brake device which brakes a cable rope at the initial stage of out-of-control speed of the cable rope.

The utility model discloses a following technical scheme realizes:

the freight cableway brake device comprises a base, wherein a pulley is rotatably arranged on the base, at least one side of the pulley is provided with a speed limiting wheel coaxially arranged with the pulley, the side, close to the pulley, of the speed limiting wheel is provided with an outer protrusion, the side, far away from the pulley, of the speed limiting wheel is provided with a support, the support is arranged on the base, a pressing block is rotatably arranged on the support, a pull rod is rotatably arranged on the pressing block, the other end of the pull rod is rotatably connected with the speed limiting wheel, the side, close to the speed limiting wheel, of the pulley is rotatably provided with a centrifugal hammer, an inner protrusion matched with the outer protrusion is arranged on the centrifugal hammer, if the speed of a steel cable is out of control, the rotating speed of the pulley is increased, the inner protrusion of the centrifugal hammer strikes the outer protrusion of the speed limiting wheel, the speed limiting wheel rotates to drive the pressing block to press the pulley, the pulley is.

Furthermore, the pulley is rotatably provided with two centrifugal hammers which are centrosymmetric about the center of the pulley circle, and the circumference of the speed limiting wheel is provided with an even number of convex parts at equal intervals.

Further, the centrifugal hammer comprises a connecting portion, the connecting portion is rotatably connected with the pulley, and an inner protrusion is arranged at one end of the connecting portion.

Further, two centrifugal hammers are first centrifugal hammer and second centrifugal hammer respectively, be equipped with head hole and centre bore on the connecting portion of first centrifugal hammer, be equipped with centre bore and afterbody hole on the connecting portion of second centrifugal hammer, the tip and the middle part of its connecting portion at place are located respectively to head hole, afterbody hole and centre bore, and first centrifugal hammer and second centrifugal hammer rotate with the pulley through centre bore and are connected, are equipped with the transfer line between the head hole of first centrifugal hammer and the afterbody hole of second centrifugal hammer, the both ends of transfer line rotate with first centrifugal hammer and second centrifugal hammer respectively and are connected.

Furthermore, still be equipped with the afterbody hole on the connecting portion of first centrifugal hammer, it is equipped with elastic telescopic rod to rotate on the afterbody hole, elastic telescopic rod's the other end and pulley rotate and are connected.

Furthermore, one end of the elastic telescopic rod, which is rotatably connected with the pulley, is positioned on the inner side of the pulley and close to the inner lug of the second centrifugal hammer.

Furthermore, the outer convex piece is a convex mechanism, and the inner convex piece is a concave structure matched with the outer convex piece.

Further, the connecting part is an arc-shaped rod.

Furthermore, the briquetting is located pulley upper portion, the briquetting bottom on pulley upper portion is equipped with the locking piece.

The utility model has the advantages that:

the utility model discloses when cable wire functioning speed exceeded the safe value, the pulley rotational speed was too high, and centrifugal hammer was beaten on the speed limit wheel under the effect of centrifugal force, and the speed limit wheel drives the briquetting and sticiss the cable wire on the pulley to the pulley locking realizes at cable wire overspeed initial stage just to freight transportation cableway brake, prevents that the cable wire stall from leading to the speed to increase, takes place serious consequence under the inertial effect of goods.

Drawings

In order to more clearly illustrate the embodiments of the present application 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, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a structural view of example 1;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a structural view of embodiment 2.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments may be modified in various different ways, without departing from the spirit or scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the invention. Furthermore, the present invention creates that reference numerals and/or reference letters may be repeated in different examples, such repetition being for the purpose of simplicity and clarity and not being indicative of the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize applications of other processes and/or uses of other materials.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

As shown in fig. 1 and fig. 2, the embodiment discloses a freight cableway brake device, which includes a bracket 1, wherein a base 2 is arranged on the bracket 1, a support 3 is arranged on the base 2, and a pulley 4 is rotatably arranged on the support 3.

Still rotate on the support 3 and be equipped with speed limit wheel 5, speed limit wheel 5 and pulley 4 coaxial line set up on support 3 to there is certain distance between the two, and speed limit wheel 5 and pulley 4 all independently rotate, can not drive each other between speed limit wheel 5 and the pulley 4.

The side surface of the speed limiting wheel 5 close to the pulley 4 is provided with a plurality of convex protrusions 51, the number of the convex protrusions 51 is even, the convex protrusions 51 are arranged on the circumference of the speed limiting wheel 5 at equal intervals, and one side of each convex protrusion 51 is provided with a convex arc block structure.

The side that pulley 4 was kept away from to speed limit wheel 5 is equipped with support 6, support 6 is located on base 2, it is equipped with briquetting 7 to rotate on support 6, briquetting 7 is located 4 upper portions certain distances of pulley, briquetting 7 elasticity is rotated on support 6, and under no exogenic action, briquetting 7 upwards rotates around its link with support 6 under the effect of its inside elastic component, and the bottom that briquetting 7 is located directly over pulley 4 is equipped with the locking piece, the locking piece is made by the material that frictional force is big, briquetting 7 does not rotate with the tip that support 6 is connected and is equipped with pull rod 8, pull rod 8 rotates with 5 top sides of speed limit wheel to be connected, and speed limit wheel 5 rotates, drives pull rod 8 and stimulates briquetting 7 downwards.

The side of the pulley 4 close to the speed-limiting wheel 5 is provided with two centrifugal hammers, namely a first centrifugal hammer 41 and a second centrifugal hammer 42. First centrifugal hammer 41 includes connecting portion, connecting portion are the arc pole, be equipped with three connecting hole on the connecting portion, it is three the connecting hole is afterbody hole 9, well hole 10 and head hole 11 respectively, connecting portion are close to head hole 11 one side and are equipped with interior convex, interior convex be with outer convex 51 complex indent structure, the structure of similar crotch, interior convex constitutes first centrifugal hammer 41 with connecting portion jointly. The second centrifugal weight 42 is different from the first centrifugal weight 41 only in that the second centrifugal weight 42 is not provided with the head hole 11.

The first centrifugal weight 41 is rotatably connected with the pulley 4 through the middle hole 10, and the inner arc side of the connecting part of the first centrifugal weight 41 faces the center of the pulley 4. The second centrifugal hammer 42 and the first centrifugal hammer 41 are in center symmetry about the center of a circle of the pulley 4, the middle hole 10 of the second centrifugal hammer 42 is also in rotational connection with the pulley 4, the tail hole 9 of the second centrifugal hammer 42 is connected with the head hole 11 of the first centrifugal hammer 41 through a transmission rod 43, and the transmission rod 43 is in rotational connection with the first centrifugal hammer 41 and the second centrifugal hammer 42. An elastic telescopic rod 44 is arranged between the tail hole 9 of the first centrifugal hammer 41 and the inner lug of the second centrifugal hammer 42, one end of the elastic telescopic rod 44, which is close to the second centrifugal hammer 42, is rotatably connected with the pulley 4, and the other end of the elastic telescopic rod 44 is rotatably connected with the tail hole 9 of the first centrifugal hammer 41. Under the elastic action of the elastic telescopic rod 44, the elastic telescopic rod 44 pushes the tail hole 9 of the first centrifugal hammer 41, so that the tail hole 9 of the first centrifugal hammer 41 moves to the outside of the pulley 4, the first centrifugal hammer 41 rotates around the middle hole 10, at the same time, the tail hole 9 of the first centrifugal hammer 41 moves to the outside of the pulley 4, the head hole 11 of the first centrifugal hammer 41 moves to the inside of the pulley 4, the head hole 11 of the first centrifugal hammer 41 pushes the transmission rod 43, so that the tail hole 9 of the second centrifugal hammer 42 moves to the outside of the pulley 4, the second centrifugal hammer 42 rotates around the middle hole 10, the inner protrusion of the second centrifugal hammer 42 moves to the inside of the pulley 4 until the inner protrusion abuts against the joint of the elastic telescopic rod 44 and the pulley 4, at the same time, the positions of the first centrifugal hammer 41 and the second centrifugal hammer 42 are stable, and when the rotation speed of the pulley 4 is too high, under the action of the centrifugal force, the inner protrusions of the first centrifugal hammer 41 and the second centrifugal hammer 42 move to the outside, until the inner convex is hit on the outer convex 51 on the speed limiting wheel 5 and drives the speed limiting wheel 5 to rotate, the speed limiting wheel 5 rotates to drive the pressing block 7 to press downwards through the pull rod 8, the steel cable is pressed on the pulley 4 by the locking block at the bottom of the pressing block 7, and the pulley 4 is locked. The elasticity of the elastic telescopic rod 44 can be adjusted, the maximum rotating speed of the pulley 4 is controlled, the elasticity of the elastic telescopic rod 44 is reduced, the maximum moving speed of the pulley 4 is reduced, and conversely, the elasticity of the elastic telescopic rod 44 is enhanced, and the maximum moving speed of the pulley 4 is increased.

When the speed of the steel cable is out of control in the running process, for example, the speed regulating part has a fault, the phenomenon of galloping is generated, the rotating speed of the pulley 4 is too high, when the rotating speed reaches a limited value, the centrifugal force applied to the centrifugal hammer overcomes the elastic force of the elastic telescopic rod 44, the inner lug of the centrifugal hammer is pressed on the outer lug 51 of the speed limiting wheel 5, the speed limiting wheel 5 rotates to drive the pull rod 8 to pull the pressing block 7 downwards, the pressing block 7 is tightly pulled on the pulley 4 by the locking block at the bottom of the pressing block 7, the pulley 4 is also locked, the steel cable is fixed, the emergency brake on the freight cableway is completed, the accident is prevented, after the fault is eliminated, the cableway reversely moves for a certain length, the inner lug of the centrifugal hammer is withdrawn from the outer lug 51, the centrifugal hammer is reset under the action of the elastic telescopic rod 44, and after the speed limiting wheel 5 is not limited by the centrifugal hammer, the pressing block 7 is sprung upwards under the elastic force of, the freight track is released from the brake.

Example 2

As shown in fig. 3, the difference between this embodiment and embodiment 1 is that the other side of the pulley 4 is also provided with the speed limiting wheel 5, the bracket 6, the pressing block 7, the centrifugal hammer and other structures which are the same as those in embodiment 1, so that the pulley 4 realizes bidirectional speed limiting, and the bidirectional overspeed of the pulley 4 triggers the brake device of the freight ropeway to realize emergency braking.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims

1. The freight cableway brake device comprises a base, wherein a pulley is rotatably arranged on the base, and the freight cableway brake device is characterized in that at least one side of the pulley is provided with a speed limiting wheel coaxially arranged with the pulley, the side surface, close to the pulley, of the speed limiting wheel is provided with an outer protrusion, the side surface, far away from the pulley, of the speed limiting wheel is provided with a support, the support is arranged on the base, the support is rotatably provided with a pressing block, the pressing block is rotatably provided with a pull rod, the other end of the pull rod is rotatably connected with the speed limiting wheel, the side surface, close to the speed limiting wheel, of the pulley is rotatably provided with a centrifugal hammer, and the centrifugal hammer is.

2. A freight cableway brake device according to claim 1, characterized in that two centrifugal weights are rotatably mounted on the pulley, the two centrifugal weights being arranged so as to be centrally symmetrical about the center of the pulley, and an even number of projections being equally spaced around the circumference of the speed wheel.

3. A freight cableway brake device according to claim 2, in which the centrifugal hammer comprises a connecting part which is rotatably connected to the pulley and which is provided at one end with an internal projection.

4. A freight cableway brake device according to claim 3, wherein the two centrifugal hammers are a first centrifugal hammer and a second centrifugal hammer, respectively, a head hole and a middle hole are provided in the connecting portion of the first centrifugal hammer, a middle hole and a tail hole are provided in the connecting portion of the second centrifugal hammer, the head hole, the tail hole and the middle hole are provided in the end portion and the middle portion of the connecting portion, respectively, in which the first centrifugal hammer and the second centrifugal hammer are rotatably connected to the pulley through the middle hole, a transmission rod is provided between the head hole of the first centrifugal hammer and the tail hole of the second centrifugal hammer, and both ends of the transmission rod are rotatably connected to the first centrifugal hammer and the second centrifugal hammer, respectively.

5. A freight cableway brake device according to claim 4, characterized in that the connecting portion of the first centrifugal hammer is further provided with a tail hole, the tail hole is rotatably provided with an elastic telescopic rod, and the other end of the elastic telescopic rod is rotatably connected with a pulley.

6. The freight ropeway brake device as claimed in claim 5, wherein the end of the resilient telescopic rod rotatably connected to the pulley is located inside the pulley and near the inner protrusion of the second centrifugal hammer.

7. A freight cableway brake device according to claim 6, in which the male lug is a male projection and the female lug is a female formation cooperating with the male lug.

8. A freight ropeway brake apparatus according to claim 7, wherein the connecting portion is an arcuate bar.

9. The freight ropeway brake device as claimed in claim 8, wherein the pressing block is provided on an upper portion of the pulley, and a locking block is provided on a bottom of the pressing block on the upper portion of the pulley.