CN211621130U

CN211621130U - Underground pavement friction coefficient recovery device

Info

Publication number: CN211621130U
Application number: CN202020059657.6U
Authority: CN
Inventors: 田臣; 刘英杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-10-02
Anticipated expiration: 2030-01-13

Abstract

The utility model provides a pavement friction coefficient recovery unit in pit, including base, pivot and work arm, be provided with the spacing seat that is used for spacing pivot on the base and pull the hole, pull the hole and set up the both sides position of symmetry on the base top surface respectively with spacing seat, many work arms rotate through the swivel mount and cup joint in the pivot, and the work arm is provided with the balancing weight including fixed welded extension bar, connection pad and napping head in proper order on the extension bar. The utility model has the advantages of simple and reasonable design, easily operation, the effect of napping is obvious, accords with the explosion-proof requirement of underground equipment, can be with in the pit by the concrete ground quick napping recovery coefficient of friction that uses for a long time to grind flat, increases the factor of safety of production in the pit, excellent in use effect, processing low cost can use widely.

Description

Underground pavement friction coefficient recovery device

Technical Field

The utility model belongs to the technical field of coal mining equips, concretely relates to underground pavement friction coefficient recovery unit.

Background

The length of the underground auxiliary transportation roadway of the shallow coal seam is generally more than 10KM, and the underground auxiliary transportation roadway is usually formed by pouring C30 concrete. The auxiliary transportation roadway belongs to a permanent roadway and is long in service life, and along with continuous upgrading of underground mining equipment, the weight of the equipment is increased, so that the friction groove of the original road surface is easy to be ground flat, the underground humidity is high, the ground surface is accumulated with water, the braking distance can be increased when a vehicle runs on the road surface, auxiliary transportation accidents are easy to cause, and great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that not enough to above-mentioned prior art provides an underground road surface coefficient of friction recovery device, and the device structural design scientific and reasonable, processing low cost can resume the coefficient of friction on ground rapidly at the subaerial fluting that coefficient of friction is not enough in the pit, increases the factor of safety of transportation, can extensively use widely.

In order to solve the technical problem, the utility model discloses a technical scheme is: a device for recovering the friction coefficient of underground pavement is characterized by comprising a base, a rotating shaft and a working arm, the upper end surface of the base is provided with a groove-shaped limiting seat for limiting the rotating shaft and a dragging hole for dragging the hanging rope, the number of the limiting seats and the number of the dragging holes are two and are respectively arranged at four corner positions of the top surface of the base, the rotating shaft is movably arranged in the two limiting seats, movable bolts are arranged in the limiting seats, the number of the working arms is multiple, the multiple working arms are uniformly distributed and rotatably sleeved on the rotating shaft through rotating sleeves, the working arm comprises an extension bar, a connecting disc and a napping head which are welded and fixed in sequence, one end of the extension bar is fixedly welded on the rotating sleeve, the other end of the extension bar is fixedly connected with the napping head through the connecting disc, the hair drawing head is a cutting tooth and is used for grooving on an underground road surface, and one side of the extension bar, which is close to the connecting disc, is fixedly connected with a balancing weight used for increasing the dead weight of the working arm.

Preferably, the base is connected through many channel-section steels and is consolidated including two supporting legss of making after the channel-section steel cutting that the symmetry set up between two supporting legs, uses the channel-section steel preparation base can reduce the dead weight of base, makes the device pull more laborsavingly, can also save steel, practices thrift the cost.

Preferably, the lower end of the base is provided with a sliding shoe made of a wear-resistant steel plate, so that the abrasion of the base protection device main body can be avoided, and the service life of the device can be prolonged.

Preferably, a plurality of working arms are uniformly connected to the rotating shaft at equal intervals, each working arm can rotate freely through the rotating sleeve, the working quantity of the working arms can be adjusted flexibly, the spacing of the ground grooves can be controlled, the adjustment is flexible according to the ground grinding degree, and the practicability is high.

Preferably, the working arm is provided with a supporting leg for supporting the working arm when the working arm is in a retracted state, so that the working arm which does not participate in slotting work can not press the support main body to protect the service life of the support prolonging device.

Preferably, the rotating shaft is provided with a mounting groove for limiting the rotating sleeve at a position connected with the rotating sleeve, so that the rotating sleeve is prevented from generating transverse deviation.

Preferably, the rotating shaft, the working arm and the limiting seat are all made of high-strength wear-resistant steel, and all the parts are fixed through welding.

Compared with the prior art, the utility model has the following advantage:

1. the utility model has the advantages of being scientific and reasonable in structural design, processing low cost accords with the explosion-proof performance of national requirement mining equipment, thereby can resume the coefficient of friction on ground at the subaerial fluting that coefficient of friction is not enough in the pit rapidly, has guaranteed rubber-tyred car vehicle frictional force that traveles in the pit, provides the advantage for the transportation safety in production, can extensively use widely.

2. The utility model discloses a swivel sleeve is with work arm swing joint in the pivot, can conveniently retrieve after the fluting finishes, avoids taking place the incident.

3. The utility model discloses a pulling the downthehole bolt steel cable or chain and pulling by other vehicles in the pit and marcing, nimble changeable, safe and reliable, fluting is efficient.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic side view of the present invention.

Fig. 2 is a schematic top view of the present invention.

Description of reference numerals:

1-a base; 2-dragging holes; 3-a limiting seat;

4, a rotating shaft; 5, lengthening a rod; 6-connecting disc;

7, pulling a burr; 8, a movable bolt; 9-a slipper;

10-a support leg; 11-a counterweight block; 12-rotating sleeve.

Detailed Description

As shown in figures 1 and 2, the utility model comprises a base 1, a rotating shaft 4 and a working arm, the upper end face of the base 1 is provided with a groove-shaped limiting seat 3 for limiting the rotating shaft 4 and a dragging hole 2 for dragging a hanging rope, the number of the limiting seat 3 and the dragging hole 2 is two and are respectively arranged at four corner positions of the top surface of the base 1, the rotating shaft 4 is movably arranged in the two limiting seats 3, a movable bolt 8 is arranged in the limiting seat 3, when the working arm or the rotating shaft 4 is damaged and needs to be maintained, the movable bolt 8 is unscrewed to take out the rotating shaft 4 for maintenance, the number of the working arms is multiple, a plurality of the works 5 are evenly distributed and rotated to be sleeved on the rotating shaft 4 through a rotating sleeve 12, the working arm comprises an extension bar 5, a connecting disc 6 and an epilating head 7 which are welded and fixed in sequence, one end of the extension bar 5 is fixedly welded on the, the other end of the extension rod is fixedly connected with a napping head 7 through a connecting disc 6, the napping head 7 is a cutting tooth and is used for grooving on an underground pavement, and a balancing weight 11 used for increasing the dead weight of the working arm is fixedly connected to one side, close to the connecting disc 6, of the extension rod 5.

In this embodiment, base 1 is connected the reinforcement through many channel-section steels between two supporting legs including two supporting legss of making after the channel-section steel cutting that the symmetry set up, uses channel-section steel preparation base 1 to reduce base 1's dead weight, makes the device pull more laborsavingly, can also save steel, practices thrift the cost.

In this embodiment, the lower end of the base 1 is provided with the sliding shoe 9 made of a wear-resistant steel plate, so that the wear of the base 1 can be avoided, the main body of the device can be protected, and the service life of the device can be prolonged.

In this embodiment, many work arms of equidistant even connection on the pivot 4, every work arm homoenergetic is through 12 free rotations on the swivel mount, can adjust the work quantity of work arm in a flexible way, controls the grooved interval in ground, grinds the level and adjusts in a flexible way according to ground, and the practicality is strong.

In this embodiment, be provided with the supporting leg 10 that is used for supporting the work arm when the work arm is packed up the state on extension bar 5, make the work arm that does not participate in fluting work can not produce oppression protection support 1 extension fixture life to support 1 main part, balancing weight 11 sets up the up end opposite to napping head 7 on extension bar 5, supporting leg 10 sets up on extension bar 5's lower terminal surface.

In this embodiment, the rotating shaft 4 is provided with a mounting groove for limiting the rotating sleeve 12 at a position connected to the rotating sleeve 12, so as to prevent the rotating sleeve 12 from generating lateral deviation.

In this embodiment, the rotating shaft 4, the working arm and the limiting seat 3 are all made of high-strength wear-resistant steel, and all the parts of the device are fixed by welding.

During the use, pass through the wire rope or the chain and pull hole 2 and fix on the towing pintle of vehicle in the pit, grind the operating condition that the degree overturns part work arm to hair pulling head 7 and touch to earth according to ground, start the vehicle and slowly march, hair pulling head 7 is at concrete subaerial fluting under the oppression of balancing weight 11, it can to pack up the work arm and make supporting leg 10 touch to earth after the work is accomplished.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modifications, changes and equivalent changes made to the above embodiments according to the technical spirit of the present invention all fall within the protection scope of the technical solution of the present invention.

Claims

1. The underground pavement friction coefficient recovery device is characterized by comprising a base (1), a rotating shaft (4) and working arms, wherein the upper end face of the base (1) is provided with groove-shaped limiting seats (3) for limiting the rotating shaft (4) and dragging holes (2) for dragging the device to advance, the number of the limiting seats (3) and the number of the dragging holes (2) are two and are respectively arranged at four corner positions of the top face of the base (1), the rotating shaft (4) is movably placed in the two limiting seats (3), movable bolts (8) are arranged in the limiting seats (3), the number of the working arms is multiple, the working arms are sleeved on the rotating shaft (4) through rotating sleeves (12) in an equidistance manner, and each working arm comprises an extension rod (5), a connecting disc (6) and a napping head (7) which are welded and fixed in sequence, extension bar (5) one end fixed welding is in on rotary sleeve (12), the other end passes through connection pad (6) and draws burr head (7) fixed connection, draw burr head (7) and be used for the cutting pick to open a slot on the road surface in the pit, one side fixedly connected with that is close to connection pad (6) on the extension bar is used for increasing balancing weight (11) of work arm dead weight.

2. A downhole road surface friction coefficient restoring device according to claim 1, wherein the lower end of the foundation (1) is provided with a slipper (9) made of wear resistant steel plate.

3. A downhole road surface friction coefficient restoration device according to claim 1, wherein the extension bar (5) is provided with support legs (10) for supporting the working arm in its retracted state.

4. The device for recovering the friction coefficient of the underground pavement according to the claim 1, wherein the rotating shaft (4) is provided with an installation groove for limiting the rotating sleeve (12) at the position of connecting the rotating sleeve (12).