CN210593844U

CN210593844U - Buffer type backstop

Info

Publication number: CN210593844U
Application number: CN201921639024.6U
Authority: CN
Inventors: 鞠江兰; 潘莹
Original assignee: Taixing Wanxiang Steering Gear Co Ltd
Current assignee: Taixing Wanxiang Steering Gear Co Ltd
Priority date: 2019-09-28
Filing date: 2019-09-28
Publication date: 2020-05-22
Anticipated expiration: 2029-09-28

Abstract

The utility model discloses a buffering formula backstop, which comprises an outer shell, the inner chamber circumference inner wall of shell all is seted up flutedly, the inner chamber left and right sides inner wall of recess is provided with first spring and second spring respectively, the inner chamber of shell has the round bar along pegging graft from top to bottom direction, the outer wall of round bar is connected with the pin through the connecting axle rotation, the inner chamber of shell is provided with the disc, the outer wall circumference surface of disc all seted up with the communicating through-hole of inner wall, the equal fixedly connected with bearing in both ends about the inner chamber of through-hole, the inner chamber interference fit of bearing has the connecting rod, the outer wall interference fit of connecting rod has the gear, the inner chamber of disc is embedded to have the plectane. This buffering formula backstop, the device can effectually cushion the backstop because of reasons such as the sudden power failure of working machine make the transmission shaft produce great reverse impact's load, has prolonged the life of backstop, has increased the practicality of backstop, more accords with actual user demand.

Description

Buffer type backstop

Technical Field

The utility model relates to a backstop technical field specifically is a buffering formula backstop.

Background

In order to prevent the inclined belt conveyor from reversing or smoothing when the inclined belt conveyor is stopped with a load, a backstop or a brake device and a roller backstop are added according to the specific situation through accounting of brake torque, the roller backstop is suitable for a head roller and is driven by a speed reducer, the power is higher, the diameter of the roller is larger, the speed reducer is higher than ZQ65, the roller backstop is more suitable for upward conveying, and the belt conveyor with the inclination angle less than or equal to 18 degrees has the advantages of quick backstop and small reversing distance and is a preferred backstop of a large-medium-shaped inclined angle type conveyor;

the existing backstop is directly fixed on working equipment when in use, the backstop has the effects that the transmission shaft can only rotate in one direction, the transmission shaft generates large reverse impact load due to reasons such as sudden power failure of a working machine, the impact load far exceeds the rated allowable load of the backstop at the moment, the backstop is easily damaged, the maintenance cost is increased, the practicability of the backstop is reduced, and the practical use requirement is not met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a buffer type backstop to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a buffering formula backstop, includes the shell, the inner chamber circumference inner wall of shell all is seted up flutedly, the inner chamber left and right sides inner wall of recess is provided with first spring and second spring respectively, the inner chamber of shell has the round bar along upper and lower direction grafting, the outer wall of round bar is connected with the pin through the connecting axle rotation, the inner chamber of shell is provided with the disc, the outer wall circumference surface of disc all sets up with the communicating through-hole of inner wall, the equal fixedly connected with bearing in both ends about the inner chamber of through-hole, the inner chamber interference fit of bearing has the connecting rod, the outer wall interference fit of connecting rod has the gear, the inner chamber of disc is embedded to have the plectane, the outer wall interference fit of plectane has the ring gear, the top surface of plectane is seted up with the.

Preferably, one end of the outer side of the stop lever extends into the inner cavity of the groove and is positioned between the first spring and the second spring.

Preferably, one end of the inner side of the stop lever is arc-shaped.

Preferably, the through holes are distributed on the outer wall of the disc at intervals of 90 degrees clockwise.

Preferably, the gear ring and the gear are in meshing connection.

Compared with the prior art, the beneficial effects of the utility model are that: the buffer type backstop drives the gear ring and the circular groove to rotate anticlockwise suddenly when the circular plate rotates anticlockwise suddenly, the gear is driven to rotate clockwise by the gear ring, the gear teeth on the outer wall of the gear rotate clockwise are contacted with the right-angled edge at the inner end of the stop lever, the gear cannot rotate clockwise continuously by the stop lever, the gear is blocked, the stop lever rotates anticlockwise on the outer wall of the circular rod, the outer end of the stop lever is contacted with the first spring and extrudes the first spring to deform, the circular plate is buffered by the first spring when rotating anticlockwise, the buffer type backstop can effectively buffer the load of the backstop, which causes the transmission shaft to generate large reverse impact due to sudden power failure of a working machine and the like, the impact load is prevented from far exceeding the rated load of the backstop, the backstop is damaged, the maintenance cost is saved, and the service life of the backstop is prolonged, the practicability of the backstop is improved, and the practical use requirement is met.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the point A of the present invention;

FIG. 3 is a schematic view of the gear structure of the present invention;

fig. 4 is a schematic view of the structure of the housing of the present invention.

In the figure: 1. the device comprises a shell, 2, a groove, 3, a first spring, 4, a second spring, 5, a round rod, 6, a stop rod, 7, a disc, 8, a through hole, 9, a bearing, 10, a connecting rod, 11, a gear, 12, a round plate, 13, a toothed ring, 14 and a round groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a buffer type backstop comprises a shell 1, grooves 2 are formed in the circumferential inner wall of an inner cavity of the shell 1, a first spring 3 and a second spring 4 are respectively arranged on the inner walls of the left side and the right side of the inner cavity of each groove 2, the first spring 3 is a spiral spring, the elastic coefficient is 19N/CM, the first spring 3 generates elastic deformation after being stretched or extruded, the first spring 3 recovers to an initial state after external force is removed, the second spring 4 is a spiral spring, the elastic coefficient is 20N/CM, the second spring 4 generates elastic deformation after being stretched or extruded, the first spring 3 recovers to the initial state after external force is removed, one end of the outer side of a stop lever 6 is rotated clockwise to be in contact with the second spring 4 and extrude the second spring 4 to generate deformation, the stop lever 6 is conveniently pushed to reset, the outer wall of a round lever 5 rotates anticlockwise through the stop lever 6, one end of the outer side of the stop lever 6 is in contact with the first spring 3 and extrudes, the first spring 3 has a buffering effect on the circular plate 12 when the circular plate 12 rotates anticlockwise, the circular rod 5 is inserted into the inner cavity of the housing 1 along the up-down direction, the outer wall of the circular rod 5 is rotatably connected with the stop lever 6 through the connecting shaft, when the circular plate 12 rotates clockwise, the circular plate 12 drives the gear ring 13 and the circular groove 14 to rotate clockwise, the gear 11 is driven by the gear ring 13 to drive the connecting rod 10 to rotate anticlockwise through the bearing 9, teeth on the outer wall of the gear 11 are contacted with one end of the inner side of the stop lever 6 while the gear 11 rotates anticlockwise, the stop lever 6 is driven to rotate clockwise on the outer wall of the circular rod 5, the gear 11 is driven by the circular plate 12 to rotate anticlockwise normally while passing through the stop lever 6 while the stop lever 6 rotates clockwise, the circular plate 7 is arranged in the inner cavity of the housing 1, through holes 8 communicated with the inner wall are formed in the circumferential surface of the outer wall of the circular, impel gear 11 clockwise rotation through ring gear 13, tooth on the outer wall contacts with the inboard one end right angle limit of pin 6 when gear 11 clockwise rotation, impel gear 11 can not continue clockwise rotation through pin 6, play the effect of blockking to gear 11, the equal fixedly connected with bearing 9 in both ends about the inner chamber of through-hole 8, bearing 9's inner chamber interference fit has connecting rod 10, connecting rod 10's outer wall interference fit has gear 11, disc 7's inner chamber is embedded to have a plectane 12, disc 12's outer wall interference fit has ring gear 13, through when disc 12 is rotatory, disc 12 drives ring gear 13 and circular slot 14 rotatory, through the relation of ring gear 13 with the gear 11 meshing connection, it is rotatory to make things convenient for gear 11 to drive connecting rod 10 to pass through bearing 9, circular slot 14 communicating with the bottom surface is seted up on disc 12's top surface.

As preferred scheme, further, the outside one end of pin 6 extends into the inner chamber of recess 2, and be located between first spring 3 and the second spring 4, outside one end clockwise rotation and the contact of second spring 4 through pin 6, and extrude second spring 4 and take place deformation, conveniently promote pin 6 and reset, outer wall anticlockwise rotation at round bar 5 through pin 6, the outside one end and the contact of first spring 3 of pin 6, and extrude first spring 3 and take place deformation, play the cushioning effect when anticlockwise rotation through first spring 3 to plectane 12.

Preferably, one end of the inner side of the stop lever 6 is arc-shaped, when the circular plate 12 is rotated clockwise, the circular plate 12 drives the toothed ring 13 and the circular groove 14 to rotate clockwise, the toothed ring 13 causes the gear 11 to drive the connecting rod 10 to rotate counterclockwise through the bearing 9, while the gear 11 rotates counterclockwise, the teeth on the outer wall contact one end of the inner side of the stop lever 6, and the stop lever 6 is pushed to rotate clockwise on the outer wall of the circular rod 5, while the stop lever 6 rotates clockwise, the gear 11 is caused to rotate through the stop lever 6 in normal counterclockwise.

Preferably, the through holes 8 are distributed on the outer wall of the disc 7 at intervals of 90 degrees clockwise, when the disc 12 rotates suddenly counterclockwise, the disc 12 drives the gear ring 13 and the circular groove 14 to rotate counterclockwise, the gear ring 13 drives the gear 11 to rotate clockwise, when the gear 11 rotates clockwise, the teeth on the outer wall contact with the right-angled edge at one end of the inner side of the stop lever 6, the stop lever 6 drives the gear 11 to rotate clockwise, and the gear 11 cannot rotate clockwise continuously, so that the gear 11 is blocked.

Preferably, the gear ring 13 is meshed with the gear 11, the circular plate 12 rotates the gear ring 13 and the circular groove 14 when the circular plate 12 rotates, and the gear 11 facilitates the connecting rod 10 to rotate through the bearing 9 by the meshed connection of the gear ring 13 and the gear 11.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

When the circular plate 12 is rotated clockwise, the circular plate 12 drives the gear ring 13 and the circular groove 14 to rotate clockwise, the gear 11 is driven to drive the connecting rod 10 to rotate anticlockwise through the bearing 9 through the meshed connection relationship between the gear ring 13 and the gear 11, the gear teeth on the outer wall are contacted with one end of the inner side of the stop lever 6 while the gear 11 rotates anticlockwise and pushes the stop lever 6 to rotate clockwise on the outer wall of the circular rod 5, the stop lever 6 drives the gear 11 to rotate anticlockwise normally and pass through the stop lever 6 while rotating clockwise, one end of the outer side of the stop lever 6 rotates clockwise and is contacted with the second spring 4 and extrudes the second spring 4 to deform, the second spring 4 is stressed to deform to tighten the reverse elasticity of the stop lever 6, so that the stop lever 6 is convenient to reset, when the circular plate 12 rotates anticlockwise suddenly, the circular plate 12 drives the gear ring 13 and the circular groove 14 to rotate, and drives the gear 11 to rotate anticlockwise through the gear ring 13, when the gear 11 rotates clockwise, the teeth on the outer wall contact with the right-angled edge at one end of the inner side of the stop lever 6 and push the stop lever 6 to rotate anticlockwise on the outer wall of the round rod 5, one end of the outer side of the stop lever 6 contacts with the first spring 3 and extrudes the first spring 3 to deform, the distance between one end of the outer side of the stop lever 6 and the inner wall of the left side of the groove 2 is short, the first spring 3 cannot be compressed continuously when compressed to the minimum deformation, the stop lever 6 cannot rotate continuously on the outer wall of the round rod 5, so that the gear 11 cannot rotate clockwise continuously and block the gear 11, thereby the circular plate 12 cannot rotate anticlockwise continuously and block the circular plate 12, the first spring 3 buffers the circular plate 12 when rotating anticlockwise, the device has a simple structure and is convenient to control and use, and can effectively buffer the load of a backstop which causes a large reverse impact on a transmission shaft due to sudden power failure of a working machine and the like, the service life of the backstop is prolonged, the practicability of the backstop is improved, and the practical use requirement is met.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless expressly stated or limited otherwise, the terms "disposed," "coupled," "plugged," "welded," "clamped," and the like are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a buffering formula backstop, includes shell (1), its characterized in that: the inner cavity circumference inner wall of the shell (1) is provided with a groove (2), the inner cavity left and right side inner walls of the groove (2) are respectively provided with a first spring (3) and a second spring (4), the inner cavity of the shell (1) is spliced with a round rod (5) along the up-down direction, the outer wall of the round rod (5) is rotatably connected with a stop lever (6) through a connecting shaft, the inner cavity of the shell (1) is provided with a disc (7), the outer wall circumference surface of the disc (7) is provided with a through hole (8) communicated with the inner wall, the upper end and the lower end of the inner cavity of the through hole (8) are respectively and fixedly connected with a bearing (9), the inner cavity of the bearing (9) is in interference fit with a connecting rod (10), the outer wall of the connecting rod (10) is in interference fit with a gear (11), the inner cavity of the disc (7) is internally embedded with a disc, the top end surface of the circular plate (12) is provided with a circular groove (14) communicated with the bottom end surface.

2. The buffer backstop of claim 1, wherein: one end of the outer side of the stop lever (6) extends into the inner cavity of the groove (2) and is positioned between the first spring (3) and the second spring (4).

3. The buffer backstop of claim 1, wherein: one end of the inner side of the stop lever (6) is arc-shaped.

4. The buffer backstop of claim 1, wherein: the through holes (8) are distributed on the outer wall of the disc (7) at intervals of 90 degrees clockwise.

5. The buffer backstop of claim 1, wherein: the gear ring (13) and the gear (11) are in meshed connection.