CN211370978U - Engineering machine tool track lockbolt - Google Patents

Abstract

The utility model discloses an engineering machine tool track check bolt, including hexagonal spiral shell head, hexagonal spiral shell head's bottom fixed mounting has clamping screw, the both sides at hexagonal spiral shell head top all are provided with the enhancement spiral shell head, the bottom fixed mounting who strengthens the spiral shell head has the reinforcing screw, the thread bush has been cup jointed on the surface of clamping screw lower extreme. The utility model discloses a cup joint the thread bush on clamping screw's lower extreme surface, install inside the thread bush with the enhancement screw rod again, not only can increase the fixed effect with the track, can also prevent that the bolt from droing from the surface, and it can not cause the stopping to hexagonal spiral shell head to strengthen spiral shell head installation to mounting groove inside, because the upper end of strengthening the screw rod is slightly thicker than the lower extreme, multiplicable area of contact with hexagonal spiral shell head after the installation, the connection effect has been strengthened, solved simultaneously when the installation and need use the bolt to connect, because the track needs the motion after the installation, the vibrations of production can lead to the not hard up problem that takes place to drop of bolt.

Description

Engineering machine tool track lockbolt

Technical Field

The utility model relates to a bolt technical field specifically is an engineering machine tool track check bolt.

Background

The walking system of the heavy engineering machinery crawler vehicle generally comprises a crawler, a driving wheel, a thrust wheel, a drag chain wheel and a guide wheel, wherein the crawler is a core component part and is a carrier for converting the driving force of a walking motor into the walking power of the whole machine, a crawler plate of the heavy engineering machinery crawler vehicle is generally of an integral casting type and is connected by a pin shaft penetrating through a pin hole, the stress of the crawler plate and the pin shaft is very large during walking, and deformation is generated in the long term, so the reliability of the positioning of the pin shaft of the crawler determines the reliability of the crawler walking device to a great extent, however, when the crawler used by the engineering machinery is installed, bolts need to be used for connection, and as the crawler needs to move after being installed, the generated vibration can cause the bolt to loosen and fall, thereby the potential.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an engineering machine tool track check bolt possesses the advantage that prevents the bolt and drop, has solved and need use the bolt to connect when the installation, because the track need move after the installation, the vibrations of production can lead to the not hard up problem that takes place to drop of bolt.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an engineering machine tool track lockbolt, includes hexagonal spiral shell head, hexagonal spiral shell head's bottom fixed mounting has set screw, the both sides at hexagonal spiral shell head top all are provided with strengthens spiral shell head, the bottom fixed mounting who strengthens spiral shell head has the enhancement screw, the thread bush has been cup jointed on the surface of set screw lower extreme, the lower extreme of strengthening the screw runs through to the bottom of thread bush.

Preferably, the mounting groove has all been seted up to the both sides at hexagonal spiral shell head top, the mounting groove is vertical setting, and runs through to the below of hexagonal spiral shell head.

Preferably, inclined pull grooves are obliquely formed in two sides of the lower end of the fixing screw rod, and internal threads are formed in the inner walls of the inclined pull grooves.

Preferably, the diameter of the upper end of the reinforcing screw is larger than that of the lower end of the reinforcing screw, and the surface of the upper end of the reinforcing screw is arranged in an arc shape.

Preferably, the fixing screw and the hexagonal screw head are integrally formed, and the reinforcing screw head and the reinforcing screw are integrally formed.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a cup joint the thread bush on clamping screw's lower extreme surface, install inside the thread bush with the enhancement screw rod again, not only can increase the fixed effect with the track, can also prevent that the bolt from droing from the surface, and it can not cause the stopping to hexagonal spiral shell head to strengthen spiral shell head installation to mounting groove inside, because the upper end of strengthening the screw rod is slightly thicker than the lower extreme, multiplicable area of contact with hexagonal spiral shell head after the installation, the connection effect has been strengthened, solved simultaneously when the installation and need use the bolt to connect, because the track needs the motion after the installation, the vibrations of production can lead to the not hard up problem that takes place to drop of bolt.

2. The utility model discloses an increase the inclined pull groove on clamping screw's surface, can twist external locating lever draw the inslot portion to one side after the erection joint, further reinforcing bolt is to the fixed effect of track, and this mode can carry out reasonable setting as required.

Drawings

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

FIG. 2 is a front view of the reinforced screw structure of the present invention;

fig. 3 is a top view of the hexagonal screw head structure of the present invention.

In the figure: 1. a hexagonal screw head; 2. fixing the screw rod; 3. reinforcing the screw head; 4. a reinforcing screw; 5. a threaded sleeve; 6. mounting grooves; 7. and (5) obliquely pulling the 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.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-3, an engineering machinery track anti-loosening bolt comprises a hexagonal screw head 1, wherein both sides of the top of the hexagonal screw head 1 are respectively provided with a mounting groove 6, the mounting grooves 6 are vertically arranged and penetrate below the hexagonal screw head 1, the bottom of the hexagonal screw head 1 is fixedly provided with a fixing screw 2, both sides of the lower end of the fixing screw 2 are obliquely provided with oblique pull grooves 7, the inner wall of each oblique pull groove 7 is provided with an internal thread, the fixing screw 2 and the hexagonal screw head 1 are integrally formed, the reinforcing screw head 3 and the reinforcing screw 4 are integrally formed, the surface of the fixing screw 2 is provided with the oblique pull grooves 7, an external positioning rod can be screwed into the oblique pull grooves 7 after installation and connection, the oblique arrangement has the advantages of being inserted from the side surface of the top and not occupying too much space, further, the fixing effect of the reinforcing bolt on a track can be further reasonably arranged according to needs, the two sides of the top of the hexagonal screw head 1 are respectively provided with a reinforcing screw head 3, the bottom of the reinforcing screw head 3 is fixedly provided with a reinforcing screw rod 4, the diameter of the upper end of the reinforcing screw rod 4 is larger than that of the lower end, the surface of the upper end of the reinforcing screw rod 4 is arranged in an arc shape, the surface of the lower end of the fixing screw rod 2 is sleeved with a thread sleeve 5, the lower end of the reinforcing screw rod 4 penetrates through the bottom of the thread sleeve 5, the thread sleeve 5 is sleeved on the surface of the lower end of the fixing screw rod 2, and the reinforcing screw rod 4 is arranged in the thread sleeve 5, so that the fixing effect with a crawler belt can be increased, the falling of a bolt from the surface can be prevented, the reinforcing screw head 3 cannot block the hexagonal screw head 1 when being arranged in the mounting groove 6, the contact area with the hexagonal screw head 1 can be increased after being arranged due to the fact that, because the track needs the motion after the installation, the vibrations that produce can lead to the bolt not hard up the problem that takes place to drop.

The utility model provides an all parts are the parts that general standard spare or technical staff in the field know, its structure and principle all are this technical staff all can learn through the technical manual or learn through conventional experimental method, the standard part that uses in this application file all can purchase from the market simultaneously, each part can all be customized according to the record of description and attached drawing in this application file, the concrete joining mode of each part all adopts conventional means such as ripe bolt in the prior art, rivets, welding, machinery, part and equipment all adopt conventional model in the prior art, no longer make specific statement here.

During the use, cup joint thread bush 5 through the lower extreme surface at clamping screw 2, will strengthen screw 4 again and install to thread bush 5 inside, not only can increase with the fixed effect of track, can also prevent that the bolt from droing from the surface, and strengthen the spiral shell head 3 and install 6 insidely can not lead to the fact the stopping to hexagonal spiral shell head 1 to the mounting groove, because the upper end of strengthening screw 4 is slightly thicker than the lower extreme, multiplicable and hexagonal spiral shell head 1's area of contact after the installation, strengthened the connection effect.

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 (5)

1. The utility model provides an engineering machine tool track lockbolt, includes hexagonal spiral shell head (1), its characterized in that: the bottom fixed mounting of hexagonal spiral shell head (1) has set screw (2), the both sides at hexagonal spiral shell head (1) top all are provided with strengthens spiral shell head (3), the bottom fixed mounting who strengthens spiral shell head (3) has set screw (4), thread bush (5) have been cup jointed on the surface of set screw (2) lower extreme, the lower extreme of strengthening screw (4) runs through to the bottom of thread bush (5).

2. The check bolt for the crawler of the engineering machinery as claimed in claim 1, wherein: mounting groove (6) have all been seted up to the both sides at hexagonal spiral shell head (1) top, mounting groove (6) are vertical setting, and run through to the below of hexagonal spiral shell head (1).

3. The check bolt for the crawler of the engineering machinery as claimed in claim 1, wherein: oblique pull grooves (7) are obliquely formed in two sides of the lower end of the fixing screw rod (2), and internal threads are formed in the inner walls of the oblique pull grooves (7).

4. The check bolt for the crawler of the engineering machinery as claimed in claim 1, wherein: the diameter of the upper end of the reinforcing screw rod (4) is larger than that of the lower end of the reinforcing screw rod, and the surface of the upper end of the reinforcing screw rod (4) is arranged in an arc shape.

5. The check bolt for the crawler of the engineering machinery as claimed in claim 1, wherein: the fixing screw rod (2) and the hexagonal screw head (1) are integrally formed, and the reinforcing screw head (3) and the reinforcing screw rod (4) are integrally formed.

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