CN210915085U - Tension buffering device and tension buffering system - Google Patents

Abstract

The utility model relates to the field of industrial and mining equipment, and discloses a tension buffering device and a tension buffering system; the tension buffering device comprises: the cable wire rope pulling device comprises a shell, a pulling plate and an elastic body, wherein one end of the elastic body is fixed on the side wall of the shell, the other end of the elastic body is connected with the pulling plate, the pulling plate and the shell are connected between cable wire ropes, when an operator pulls a handle, the handle wire is buffered by utilizing the elastic deformation of the elastic body, and the problem that the handle wire is damaged due to overlarge stress is solved; the tension buffering system comprises: the controller circuit is provided with a normally closed contact, a pulling plate of the pulling force buffering device is connected with the normally closed contact, and when an operator pulls the handle to exert too large force, the pulling force buffering device can drive the normally closed contact to be disconnected, so that the controller circuit is disconnected, and the purpose of emergency stop is achieved.

Description

Tension buffering device and tension buffering system

Technical Field

The utility model relates to an industrial and mining equipment field especially relates to a pulling force buffer and pulling force buffer system.

Background

In industrial and mining equipment, an electric hoist is arranged on a crown block and a gantry crane, has the characteristics of small volume, light dead weight, simplicity in operation, convenience in use and the like, and is widely applied as special hoisting equipment.

The electric hoist controller mainly comprises a control box and a control handle, wherein the control handle is connected with the control box through a special handle line.

In actual use, often the operating personnel violently pulls the control handle, perhaps the handle line takes place to collude with other equipment in below and hangs, and handle line atress is too big when the operating personnel pulls and leads to damaging unable use, just very easily damages at control box and cable junction and cable itself. When a problem occurs, the whole control handle line is often required to be replaced, and the consumed manpower, material resources and time cost are huge

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims at providing a pulling force buffer device and pulling force buffer system, solve among the prior art and draw the handle line to draw too big problem that leads to the damage of handle line unable use hard because of operating personnel.

(II) technical scheme

In order to solve the technical problem, the utility model provides a pulling force buffer, include: the cable steel wire rope breaking device comprises a shell, a pulling plate and an elastic body, wherein one end of the elastic body is fixed on the side wall of the shell, the other end of the elastic body is connected with the pulling plate, a breaking point is arranged on the cable steel wire rope, and the pulling plate and the shell are respectively connected between the breaking points of the cable steel wire rope.

The first end of the pulling plate is located inside the shell, the second end of the pulling plate extends out of the shell, a first connecting point is arranged at the second end of the pulling plate, and the first connecting point is used for being connected with a cable steel wire rope.

Wherein the first connection point is a through hole.

The shell is provided with a pull plate guide groove, the pull plate guide groove is formed in the shell, and the pull plate can be embedded into the pull plate guide groove in a sliding mode.

And a second connecting point and a third connecting point are arranged at the second end of the shell, and a connecting line of the second connecting point and the third connecting point is vertical to the tension direction of the cable steel wire rope.

The second connection point is a second through hole, and the third connection point is a third through hole.

Wherein, the elastomer is a pressure spring, a tension spring or made of elastic materials.

The utility model discloses still disclose a pulling force buffer system, include: controller circuit and if the utility model discloses a pulling force buffer, the controller circuit is equipped with the normally closed contact, pulling force buffer's arm-tie with the normally closed contact is connected.

The pull rod is connected between the pull plate and the normally closed contact.

Wherein the normally closed contact is a travel switch.

(III) advantageous effects

The utility model provides a pair of pulling force buffer connects its cable wire rope's at electric block brake valve lever line both ends, when operating personnel dragged the handle, utilizes the elastic deformation of elastomer to play the cushioning effect to the handle line, avoids the handle line because the atress is too big leads to the problem of damage.

The utility model also provides a pulling force buffer system sets up the normally closed contact in electric block's controller circuit, connects pulling force buffer at the normally closed contact, draws the handle when too big hard as operating personnel, and pulling force buffer can drive the disconnection of normally closed contact for the controller circuit disconnection realizes the purpose of scram.

Drawings

Fig. 1 is a schematic structural view of the tension buffering device and the tension buffering system of the present invention.

In the figure, 1, a housing; 2. pulling a plate; 3. an elastomer; 4. a first connection point; 5. a second connection point; 6. a third connection point; 7. a pull plate guide groove; 8. a pull rod; 9. a normally closed contact; 10. a cable; 11. a cable wire rope.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in FIG. 1, the embodiment of the utility model discloses a tension buffering device, include: shell 1, arm-tie 2 and elastomer 3, 3 one end of elastomer is fixed in the lateral wall of shell 1, the other end with arm-tie 2 is connected, and cable wire rope 11 is equipped with the breakpoint, arm-tie 2 with shell 1 is connected respectively between cable wire rope 11's the breakpoint.

Wherein, the shape of the shell 1 is a cuboid, which is used for accommodating the pulling plate 2 and the elastic body 3 and providing supporting and fixing functions.

The elastic body 3 provides elastic buffer action for the pulling plate 2, one end of the elastic body is fixed on the inner side wall or the outer side wall of the shell 1, and the other end of the elastic body is connected with the pulling plate 2.

One end of the pulling plate 2 is connected with the elastic body 3, and the other end of the pulling plate is connected with the cable wire rope 11 and used for transmitting the buffering effect of the elastic body 3 to the cable wire rope 11. And the cable steel wire rope 11 is connected with the handle line, so that the buffer effect can be transferred to the handle line, and the damage of the handle line caused by overlarge stress is avoided.

During installation, the cable steel wire rope 11 is broken, one end of the cable steel wire rope 11 is connected with the pulling plate 2, the other end of the cable steel wire rope is connected with the shell 1, a certain margin is reserved for a cable at the position where the tension buffering device is installed, and the problems that when an operator pulls the steel wire rope, the buffering device is stretched, and the cable 10 is broken due to insufficient length are avoided.

The utility model provides a pair of pulling force buffer connects its cable wire rope's at electric block brake valve lever line both ends, when operating personnel dragged the handle, utilizes the elastic deformation of elastomer to play the cushioning effect to the handle line, avoids the handle line because the atress is too big leads to the problem of damage.

The first end of the pulling plate 2 is located inside the shell 1, the second end of the pulling plate 2 extends out of the shell 1, a first connecting point 4 is arranged at the second end of the pulling plate 2, and the first connecting point 4 is used for being connected with a cable steel wire rope 11. Preferably, the first connection point 4 is a first through hole. The housing 1 in this embodiment has a through hole for the pulling plate 2 to penetrate through, and a part of the pulling plate 2 is located inside the housing 1, and a part of the pulling plate 2 is exposed out of the housing 1, so that an operator can tie the cable wire rope 11 to the pulling plate 2 through the first connecting point 4 (i.e., the first through hole). In addition, the pulling plate 2 may be completely disposed inside the housing 1, and the cable wire 11 may be extended from the housing 1.

The portable electronic device further comprises a pull plate guide groove 7, wherein the pull plate guide groove 7 is formed in the shell 1, and the pull plate 2 is slidably embedded into the pull plate guide groove 7. When an operator pulls the cable, the direction of the cable wire 11 may not be the same, so that the pulling plate 2 may move radially in the housing 1, and the elastic body 3 may be more likely to be displaced, and a buffering force may not be applied in the pulling direction. Therefore, the embodiment is provided with the pull rod guide groove 7 in the shell 1, and the pull rod 2 is arranged in the pull rod guide groove 7, so that the pull rod 2 can only move along the direction of the pull rod guide groove 7, and the problem of buffer failure caused by the deviation of the pull rod 2 is avoided.

A second connection point 5 and a third connection point 6 are arranged at a second end of the housing 1, and a connection line of the second connection point 5 and the third connection point 6 is perpendicular to the tension direction of the cable steel wire rope 11. Preferably, the second connection point 5 is a second through hole, and the third connection point 6 is a third through hole. In this embodiment, the cable wire rope 11 is tied at one end of the tension buffering device through the second connection point 5 (second through hole) and the third connection point 6 (third through hole), and a triangular shape is formed between the second connection point 5, the third connection point 6 and the cable wire rope 11, so that the connection is more stable.

Wherein, the elastic body 3 is a pressure spring, a tension spring or made of elastic material. When the elastic body 3 is a pressure spring, the pressure spring bears extrusion force and is arranged on the same side of the pulling plate 2, namely one end of the pressure spring is abutted against the inner side wall of the shell 1, the other end of the pressure spring is connected with the pulling plate 2, and when an operator pulls the handle, the pressure spring is pressed; when the elastic body 3 is a tension spring, the tension spring bears tension, the installation position of the tension spring is opposite to that of the pressure spring, namely the tension spring is installed on the opposite side of the pulling plate, and when an operator pulls the handle, the tension spring is pulled. The elastic material can be made of high molecular organic materials such as rubber.

As shown in fig. 1, the embodiment of the present invention also discloses a tension buffering system, including: controller circuit and if the utility model discloses a pulling force buffer, the controller circuit is equipped with normally closed contact 9, pulling plate 2 of pulling force buffer with normally closed contact 9 connects.

Specifically, this embodiment sets up normally closed contact 9 in electric block's controller circuit, connects pulling force buffer at normally closed contact 9, and when operating personnel pulled the handle and exert oneself too big, pulling force buffer can drive normally closed contact 9 disconnection for the controller circuit disconnection realizes the purpose of scram.

The device also comprises a pull rod 8, wherein the pull rod 8 is connected between the pull plate 2 and the normally closed contact 9. The pulling plate 2 drives the normally closed contact 9 to be disconnected through the pull rod 8, the normally closed contact 9 can adopt a travel switch, and when an operator pulls the handle to exert too much force, the pulling plate 2 moves to drive the pull rod 8 to enable the travel switch to be disconnected, so that the open circuit and the disconnection are controlled, and the electric hoist is suddenly stopped.

The utility model also provides a pulling force buffer system sets up the normally closed contact in electric block's controller circuit, connects pulling force buffer at the normally closed contact, draws the handle when too big hard as operating personnel, and pulling force buffer can drive the disconnection of normally closed contact for the controller circuit disconnection realizes the purpose of scram.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A tension buffering device, comprising: the cable steel wire rope breaking device comprises a shell, a pulling plate and an elastic body, wherein one end of the elastic body is fixed on the side wall of the shell, the other end of the elastic body is connected with the pulling plate, a breaking point is arranged on the cable steel wire rope, and the pulling plate and the shell are respectively connected between the breaking points of the cable steel wire rope.

2. The tension buffering device according to claim 1, wherein the first end of the pulling plate is located inside the housing, the second end of the pulling plate extends out of the housing, and a first connection point is provided at the second end of the pulling plate for connecting with a cable rope.

3. The tension buffering device according to claim 2, wherein the first connection point is a through hole.

4. The tension buffering device according to claim 2, further comprising a pull plate guide groove provided inside the housing, wherein the pull plate is slidably inserted into the pull plate guide groove.

5. The tension buffering device according to claim 1, wherein a second connection point and a third connection point are provided at the second end of the housing, and a line connecting the second connection point and the third connection point is perpendicular to the tension direction of the cable wire.

6. The tension buffering device according to claim 5, wherein the second connection point is a second through hole and the third connection point is a third through hole.

7. The tension buffering device according to any one of claims 1 to 6, wherein the elastic body is a compression spring, a tension spring or made of an elastic material.

8. A tension buffering system, comprising: the controller circuit and the tension buffering device according to any one of claims 1 to 7, wherein the controller circuit is provided with a normally closed contact, and a pulling plate of the tension buffering device is connected with the normally closed contact.

9. The tension buffering system of claim 8, further comprising a pull rod connected between the pull plate and the normally closed contact.

10. The tension buffering system of claim 9, wherein the normally closed contact is a travel switch.

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