CN220393313U - Anti-collision mechanism on automatic oiling gun of trolley wheel - Google Patents

Abstract

The utility model discloses an anti-collision mechanism on an automatic trolley wheel oiling gun, which relates to the technical field of anti-collision, and comprises a shell, a limiting disc, a reset rod, a spring and a rocker, wherein three or more hemispherical protrusions are arranged on the limiting disc, corresponding hemispherical grooves are arranged at corresponding positions of the rocker, the hemispherical protrusions are embedded into the hemispherical grooves after being installed, when the rocker is subjected to pressure or collision, the rocker can be limited in rotational freedom degree due to the existence of the hemispherical protrusions, and can be compressed inwards or bent in any angle in a dislocation manner, but cannot rotate, and the hemispherical protrusions are embedded into the hemispherical grooves again when the rocker is reset; the anti-collision mechanism can be used by connecting two or more anti-collision mechanisms in series, so that more degrees of freedom are realized, and the automatic oiling gun can move in the same direction without inclination.

Description

Anti-collision mechanism on automatic oiling gun of trolley wheel

Technical Field

The utility model relates to the technical field of anti-collision, in particular to an anti-collision mechanism on an automatic oiling gun for trolley wheels.

Background

The trolley is used for transporting various materials, the trolley wheels need to be regularly oiled for maintenance, in the traditional production, the trolley is often required to be stopped, and the oiling maintenance of the trolley wheels is carried out, so that the production process is forced to be suspended, and the production time is prolonged.

Along with development of science and technology, the robot is more and more widely applied in industrial production, and in the trolley operation process, the automatic oiling gun is installed on the robot arm for the trolley wheel in operation carries out automatic oiling maintenance and becomes possible, but in actual working condition, the operation of trolley wheel is not absolute straight line, and the automatic oiling gun can meet various hindrance and collision in the in-process of inserting the wheel oil filler, causes the damage of mechanical components easily. Accordingly, the present utility model is directed to an anti-collision mechanism for a trolley wheel truck nozzle that ameliorates the above-described problems.

Disclosure of Invention

The utility model aims to provide an anti-collision mechanism on an automatic oiling gun for trolley wheels, which is arranged at the tail end of a robot arm when in use and is connected with the oiling gun again, when the oiling gun collides, the rocker can deviate along with the stress direction, so that mechanical damage is avoided, and after the anti-collision mechanism is reset, the anti-collision mechanism is restored to the initial position under the action of a spring, rigid collision is avoided, and the anti-collision performance of the automatic oiling gun is realized.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an anti-collision mechanism on a trolley wheel automatic fuel truck nozzle, comprising:

the shell is of a hollow cylinder structure with one end open, and a hole is formed in the center of the inner bottom surface of the other end;

the limiting disc is positioned at one end of the opening of the shell and matched with the shell to form a cavity, a first through hole is formed in the center of the limiting disc, three or more hemispherical bulges are arranged on the inner side surface of the limiting disc, the central shaft of the limiting disc is used as a central shaft, and the hemispherical bulges are uniformly distributed in circumference;

the reset rod is arranged in the cavity and comprises a rod body and a supporting plate arranged at one end of the rod body, the outer diameter of the other end of the rod body is matched with the inner diameter of the hole, the other end of the rod body stretches into the hole, and the upper surface of the supporting plate faces one side of the limiting disc;

the spring is arranged in the cavity, one end of the spring contacts the inner bottom surface of the shell, and the other end of the spring contacts the lower surface of the supporting plate;

the rocker is located in the cavity and comprises a cylinder, one end of the cylinder is connected with an umbrella-shaped boss, the other end of the cylinder is a connecting end, the surface of one side, connected with the cylinder, of the umbrella-shaped boss is a first surface, the other side of the cylinder is an umbrella-shaped surface, the umbrella-shaped surface is abutted against the upper surface of the supporting plate, the connecting end penetrates through the first through hole of the limiting plate and extends outwards, the first surface corresponds to the inner side surface of the limiting plate, hemispherical grooves corresponding to the hemispherical protrusions in number are formed in the first surface, the central axis of the cylinder is used as a central line, and the hemispherical grooves are uniformly distributed in circumference.

Preferably, the connecting end is connected with a flange plate.

Further preferably, the side wall of the connecting end is in a step shape, the end face is provided with a first threaded hole, one side face of the flange plate is provided with a step shape corresponding to the connecting end, and the center of the flange plate is provided with a second through hole.

Preferably, the inner bottom surface of the shell is provided with a hollow boss, the inner diameter of the hollow boss is consistent with the inner diameter of the hole, and the outer diameter of the hollow boss is consistent with the inner diameter of the spring.

Preferably, the distance between the lower surface of the supporting plate and the inner bottom surface of the shell is not greater than the free height of the spring and is not less than the working height of the spring.

Preferably, the diameter of the umbrella-shaped boss is smaller than the inner diameter of the corresponding position of the shell.

Preferably, a flange facing the rod body is arranged around the support plate, and the inner diameter of the flange is in contact with the periphery of the spring.

Preferably, a second threaded hole is formed in the opening end face of the shell, and a third through hole is formed in the position, corresponding to the limiting disc, of the limiting disc.

Preferably, a third threaded hole is formed in the outer bottom surface of the shell.

It is further preferable that two or more of the collision avoidance mechanisms are connected in series.

Compared with the prior art, the utility model has the beneficial effects that:

according to the anti-collision mechanism on the automatic trolley wheel oiling gun, three or more hemispherical protrusions are arranged on the limiting disc, corresponding hemispherical grooves are formed in corresponding positions of the rocking bars, the hemispherical protrusions are embedded into the hemispherical grooves after being installed, when the rocking bars are subjected to pressure or collision, due to the fact that the hemispherical protrusions exist, the rotation freedom degree of the rocking bars can be limited, the rocking bars can be compressed inwards, the rocking bars can be bent in a staggered mode at any angle, rotation cannot occur, and when the rocking bars are reset, the hemispherical protrusions are embedded into the hemispherical grooves again.

According to the anti-collision mechanism on the automatic trolley wheel oiling gun, the two or more anti-collision mechanisms are connected in series, so that the degree of freedom of the automatic oiling gun can be increased, and even if the automatic oiling gun is required to always keep a certain direction, the automatic oiling gun can also swing through the rocker, so that the automatic oiling gun can avoid rigid collision, and the anti-collision performance of the automatic oiling gun is realized.

Drawings

FIG. 1 is a schematic view of the anti-collision mechanism on the truck wheel automatic fuel truck nozzle of the present utility model;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an exploded perspective view of the anti-collision mechanism on the truck wheel truck nozzle of the present utility model;

FIG. 4 is an exploded perspective view of the rocker and the check disk of the present utility model, looking from the side up of the check disk;

FIG. 5 is an exploded perspective view of the rocker and the check disk of the present utility model, looking from the side up of the rocker;

FIG. 6 is a schematic view of the structure of the present utility model when two anti-collision mechanisms are connected in series;

fig. 7 is a perspective view of fig. 6.

In the figure: 1. a housing; 11. a hole; 12. a hollow boss; 13. a second threaded hole; 14. a third threaded hole; 2. a limiting disc; 21. a first through hole; 22. hemispherical protrusions; 23. a third through hole; 3. a reset lever; 31. a rod body; 32. a support plate; 321. a flange; 4. a spring; 5. a rocker; 51. umbrella-shaped boss; 511. umbrella-shaped surface; 512. a first surface; 513. hemispherical grooves; 52. a column; 521. a connection end; 522. a first threaded hole; 6. a flange plate; 61. a second through hole; 62. a connection hole; 7. and (5) a screw.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the description of the present utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and the words "first," "second," and the like used in the description of the present utility model do not denote any order, quantity, or importance, but are merely used to distinguish different constituent parts, and thus are not to be construed as limiting the present utility model.

Furthermore, it should be understood that the dimensions of the various elements shown in the figures are not drawn to actual scale, e.g., the thickness or width of some layers may be exaggerated relative to other layers for ease of description.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined or illustrated in one figure, no further detailed discussion or description thereof will be necessary in the following description of the figures.

As shown in fig. 1 to 5, the present utility model provides a technical solution: an anti-collision mechanism on a trolley wheel automatic fuel truck nozzle, comprising:

the shell 1 is of a hollow column 52 structure with one end open, and a hole 11 is formed in the center of the inner bottom surface of the shell 1 at the other end;

the limiting disc 2 is positioned at one end of the opening of the shell 1 and is matched with the shell 1 to form a cavity, a first through hole 21 is formed in the center of the limiting disc 2, three or more hemispherical bulges 22 are arranged on the inner side surface of the limiting disc 2, and the hemispherical bulges 22 are uniformly distributed circumferentially by taking the central shaft of the limiting disc 2 as the central shaft;

the reset rod 3 is arranged in the cavity and comprises a rod body 31 and a supporting plate 32 arranged at one end of the rod body 31, and the outer diameter of the other end of the rod body 31 is matched with the inner diameter of the hole 11, so that the other end of the rod body 31 stretches into the hole 11 and can stretch and move along the inner wall of the hole 11, and the upper surface of the supporting plate 32 faces one side of the limiting disc 2;

the spring 4 is arranged in the cavity, one end of the spring contacts the inner bottom surface of the shell 1, and the other end of the spring contacts the lower surface of the supporting plate 32, so that when the reset rod 3 receives an external force to move towards the bottom surface of the shell 1, the spring 4 is compressed, and when the external force disappears, the spring 4 restores the elasticity, and the reset rod 3 is pushed back to the original position towards the direction of the limit disc 2;

the rocker 5 comprises an umbrella-shaped boss 51 positioned in the cavity, one side of the umbrella-shaped boss 51 is an umbrella-shaped surface 511, the other side of the umbrella-shaped boss is a first surface 512, the umbrella-shaped surface 511 of the umbrella-shaped boss 51 is abutted against the upper surface of the supporting plate 32 of the reset rod 3, a column 52 is arranged on the first surface 512, one end of the column 52 is connected to the first surface 512, the other end is a connecting end 521, the column 52 penetrates through the first through hole 21 of the limit plate 2 and extends outwards, the first surface 512 corresponds to the inner side surface of the limit plate 2, hemispherical grooves 513 with the number corresponding to the hemispherical protrusions 22 are arranged on the first surface 512, the central axis of the column 52 is taken as a central line, and the hemispherical grooves 513 are uniformly distributed in circumference.

Thus, the automatic oiling gun is arranged at the connecting end 521 of the column 52 of the rocker 5, when the automatic oiling gun is mistakenly bumped by other devices or components in the moving process of the automatic oiling gun to the trolley wheel, the rocker 5 is stressed, pressure is applied to the direction of the reset rod 3, the reset rod 3 compresses the spring 4, the automatic oiling gun has a certain free moving space, and rigid collision with other devices or components is avoided.

Further, the connecting end 521 of the rocker 5 is connected to a flange 6 for connection to an automatic fuel dispenser.

Specifically, the side wall of the connecting end 521 of the rocker 5 is provided with a step shape, the end surface is provided with a first threaded hole 522, one side surface of the flange 6 is provided with a step shape corresponding to the connecting end 521 of the rocker 5, the center is provided with a second through hole 61, and the periphery is provided with a connecting hole 62, and when in use, the flange 6 and the rocker 5 are mutually clamped together through the step shape, penetrate into the second through hole 61 through a screw 7 and are screwed into the first threaded hole 522 for connection.

Further, the hole 11 in the center of the bottom surface in the housing 1 may be a through hole or a blind hole.

Further, the inner bottom surface of the shell 1 is provided with a hollow boss 12, the inner diameter of the hollow boss 12 is consistent with the inner diameter of the hole 11, the outer diameter is consistent with the inner diameter of the spring 4, the limiting effect on the spring 4 is achieved, and the deflection of the spring 4 is prevented.

Further, the distance between the lower surface of the support plate 32 and the inner bottom surface of the housing 1 is not greater than the free height of the spring 4 and not less than the working height of the spring 4.

Further, the diameter of the umbrella-shaped boss 51 is smaller than the inner diameter of the corresponding position of the shell 1, so that when the rocker 5 is inclined and stressed, enough space is provided for the umbrella-shaped boss 51 to move, and the problem of locking between the umbrella-shaped boss 51 and the inner wall of the shell 1 is avoided.

Further, a flange 321 facing the rod body 31 is provided around the support plate 32 of the reset rod 3, and the inner diameter of the flange 321 contacts with the outer periphery of the spring 4 to limit the spring 4, so as to prevent the spring 4 from deflecting.

Further, a second threaded hole 13 is formed in the opening end face of the shell 1, and a third through hole 23 is formed in the corresponding position of the limiting disc 2 and used for penetrating a screw 7 to connect the limiting disc 2 with the shell 1.

Further, a third threaded hole 14 is provided in the outer bottom surface of the housing 1, which can be used for connection with other devices or structures.

In this embodiment, the number of hemispherical protrusions 22 is three.

When the automatic oiling gun does not receive external force collision, the first surface 512 of the rocker 5 is in contact with the inner side surface of the limiting disc 2, and the hemispherical protrusion 22 is embedded into the hemispherical groove 513.

In use, when an automatic fuel dispenser receives a collision, the rocker 5 generally moves in two ways, as follows:

in the first case, the automatic oiling gun receives a force along the direction of the vertical limiting disc, at the moment, the rocker 5 moves linearly towards the inside of the shell 1, the semicircular bulge of the limiting disc 2 is separated from the semicircular groove on the rocker 5, the reset rod 3 extrudes the spring 4, the spring 4 is restored when reset, and the rocker 5 is pushed back to the original position by the reset rod 3 linearly;

in the second case, the automatic fuel gun receives the force in the direction of the non-vertical limiting disc, at this moment, the rocker 5 tilts, one end is a fulcrum, the other end tilts, at this moment, the reset rod 3 moves linearly towards the inside of the shell 1 under the action of the rocker 5, the reset rod 3 extrudes the spring 4, and when reset, the spring 4 is restored, and the rocker 5 is pushed back to the original position by the reset rod 3 linearly.

In order to keep the automatic fuel dispenser inserted into the fuel filler of the trolley wheel in the horizontal direction, as shown in fig. 6 and 7, two or more of the above anti-collision mechanisms are connected in series, namely, the flange plate 6 of the first anti-collision mechanism is connected with the third threaded hole 14 of the outer bottom surface of the second anti-collision mechanism shell 1 through the screw 7, the first anti-collision mechanism is connected to the robot arm through the third threaded hole 14, and the flange plate 6 of the second anti-collision mechanism is connected with the automatic fuel dispenser, so that when the automatic fuel dispenser collides, the two anti-collision mechanisms can generate offset in opposite directions, the degree of freedom of the automatic fuel dispenser is increased, and even if the direction of the automatic fuel dispenser is limited, the automatic fuel dispenser can maintain the limited direction without inclination when the error collision occurs.

In this embodiment, the outer bottom surface of the housing 1 is provided with a step structure at the center, the corresponding connection surfaces of the corresponding flanges 6 are provided with corresponding step structures, when the flange 6 of the first anti-collision mechanism is connected with the outer bottom surface of the housing 1 of the second anti-collision mechanism, the flange 6 and the outer bottom surface of the housing 1 are matched by virtue of the step structures of the flange 6 and the flange 6 are connected with the third threaded holes 14 of the outer bottom surface of the housing 1 in a one-to-one correspondence manner by adopting the screws 7.

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

Claims (10)

1. An anti-collision mechanism on an automatic oiling gun for trolley wheels, which is characterized by comprising:

the shell (1) is of a hollow column (52) structure with one end open, and a hole (11) is formed in the center of the inner bottom surface of the other end;

the limiting disc (2) is positioned at one end of the opening of the shell (1) and is matched with the shell (1) to form a cavity, a first through hole (21) is formed in the center of the limiting disc (2), three or more hemispherical protrusions (22) are arranged on the inner side surface of the limiting disc (2), the central shaft of the limiting disc (2) is used as a central shaft, and the hemispherical protrusions (22) are uniformly distributed in a circumference manner;

the reset rod (3) is arranged in the cavity and comprises a rod body (31) and a supporting plate (32) arranged at one end of the rod body (31), the outer diameter of the other end of the rod body (31) is matched with the inner diameter of the hole (11), the other end of the rod body (31) stretches into the hole (11), and the upper surface of the supporting plate (32) faces one side of the limiting disc (2);

a spring (4) arranged in the cavity, one end of the spring contacts the inner bottom surface of the shell (1), and the other end of the spring contacts the lower surface of the supporting plate (32);

the rocker (5) is located in the cavity, and comprises a column body (52), one end of the column body (52) is connected with an umbrella-shaped boss (51), the other end of the column body is a connecting end (521), the surface of one side, which is connected with the column body (52), of the umbrella-shaped boss (51) is a first surface (512), the other side is an umbrella-shaped surface (511), the umbrella-shaped surface (511) is abutted to the upper surface of the supporting plate (32), the connecting end (521) penetrates through the first through hole (21) of the limiting disc (2) and extends outwards, the first surface (512) corresponds to the inner side surface of the limiting disc (2), hemispherical grooves (513) corresponding to the hemispherical protrusions (22) in number are arranged on the first surface (512), the central shaft of the column body (52) is used as a central line, and the hemispherical grooves (513) are uniformly distributed in circumference.

2. The anti-collision mechanism on a trolley wheel automatic fuel truck nozzle of claim 1, wherein: the connecting end (521) is connected with a flange plate (6).

3. The anti-collision mechanism on a trolley wheel automatic fuel truck nozzle of claim 2, wherein: the side wall of the connecting end (521) is in a step shape, a first threaded hole (522) is formed in the end face, a step shape corresponding to the connecting end (521) is formed in one side face of the flange plate (6), and a second through hole (61) is formed in the center.

4. The anti-collision mechanism on a trolley wheel automatic fuel truck nozzle of claim 1, wherein: the inner bottom surface of the shell (1) is provided with a hollow boss (12), the inner diameter of the hollow boss (12) is consistent with the inner diameter of the hole (11), and the outer diameter is consistent with the inner diameter of the spring (4).

5. The anti-collision mechanism on a trolley wheel automatic fuel truck nozzle of claim 1, wherein: the distance between the lower surface of the supporting plate (32) and the inner bottom surface of the shell (1) is not greater than the free height of the spring (4) and not less than the working height of the spring (4).

6. The anti-collision mechanism on a trolley wheel truck nozzle as claimed in claim 5, wherein: the diameter of the umbrella-shaped boss (51) is smaller than the inner diameter of the corresponding position of the shell (1).

7. The anti-collision mechanism on a trolley wheel truck nozzle as claimed in claim 6, wherein: a flange (321) facing the rod body (31) is arranged on the periphery of the supporting plate (32), and the inner diameter of the flange (321) is contacted with the periphery of the spring (4).

8. The anti-collision mechanism on a trolley wheel automatic fuel truck nozzle of claim 1, wherein: the opening end face of the shell (1) is provided with a second threaded hole (13), and a third through hole (23) is formed in a position corresponding to the limiting disc (2).

9. The anti-collision mechanism on a trolley wheel automatic fuel truck nozzle of claim 1, wherein: a third threaded hole (14) is formed in the outer bottom surface of the shell (1).

10. The crash-prevention mechanism on a trolley wheel automatic filler according to any one of claims 1 to 9, wherein: two or more of the anti-collision mechanisms are connected in series.