CN220412731U

CN220412731U - Novel point-contact type brake device with improved structure

Info

Publication number: CN220412731U
Application number: CN202321866365.3U
Authority: CN
Inventors: 张申法
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2024-01-30
Anticipated expiration: 2033-07-17

Abstract

The utility model provides a novel point touch brake equipment of institutional advancement, including the mounting bracket, the mounting bracket includes integrative panel, left engaging lug, right engaging lug, the side face of panel has the portion of leaning on, the portion of leaning on is mutually perpendicular with the panel, the pivot rotatable wears to establish on the panel, a round pin axle is inserted to the rear end of pivot, first point touch switch and second point touch switch are all fixed on the panel, swivel bush and rotary rod are all worn to establish on the pivot and rotate with the pivot is synchronous, the arc section of swivel bush is close to with the contact position of first point touch switch, second point touch switch, dispose the torsional spring between swivel bush and the rotary rod, two torsion arms of torsional spring are located the both sides of leaning on the portion respectively, the tip of rotary rod still has integrative bending portion, bending portion is between two torsion arms; the device improves on the basis of former structure, and the structure is compacter, and the assembly is more convenient, and the size reduces half, satisfies and accomplishes the installation in the limited space of electric block's casing, satisfies new market demand.

Description

Novel point-contact type brake device with improved structure

Technical Field

The utility model relates to a novel point-contact type brake device with an improved structure.

Background

The utility model discloses a point-contact type brake device of an electric hoist, which is characterized in that a motor cannot be stopped in time when a traditional electric hoist is braked, a slipping phenomenon exists, safety accidents are easy to cause, and an authorized bulletin number is CN 210366775U; however, the device has more parts and is inconvenient to assemble, so that the manufacturing cost of a single device is high; on the other hand, the device is arranged in the shell of the electric hoist, and due to objective factors such as actual installation environment, equipment transportation and the like, consumers tend to select the electric hoist with smaller size, correspondingly, the shell of the electric hoist is smaller, the point-contact type brake device with the original structure cannot be installed in the reduced shell, and the improvement is needed.

Disclosure of Invention

Aiming at the defects existing in the problems, the utility model provides a novel point-contact type brake device with an improved structure.

In order to achieve the above object, the present utility model provides a novel point-contact brake device with improved structure, comprising:

the mounting frame comprises an integrated panel, a left connecting lug and a right connecting lug, bolt holes for connection are formed in the left connecting lug and the right connecting lug, an abutting part is formed on one side surface of the panel, and the abutting part is perpendicular to the panel;

the rotating shaft can be rotatably arranged on the panel in a penetrating way, and a pin shaft is inserted into the rear end of the rotating shaft;

the first point touch switch and the second point touch switch are fixed on the panel;

the rotary sleeve and the rotary rod are respectively penetrated on the rotary shaft and synchronously rotate with the rotary shaft, the arc section of the rotary sleeve is close to the contact position of the first point contact switch and the second point contact switch, a torsion spring is arranged between the rotary sleeve and the rotary rod, two torsion arms of the torsion spring are respectively positioned on two sides of the abutting part, the end part of the rotary rod is further provided with an integral bending part, and the bending part is arranged between the two torsion arms.

Further, the panel, the left connecting lug and the right connecting lug are not arranged on a plane, so that the whole mounting frame is U-shaped.

Further, the abutting portion is formed by die cutting of the face plate.

Further, a copper sleeve is arranged on the panel, the copper sleeve is connected with the panel through riveting, and the rotating shaft penetrates through the copper sleeve to realize rotatable connection.

Further, a shaft clamp is arranged at the front end of the rotating shaft, and the shaft clamp limits the rotating sleeve and the rotating rod to axially move.

Further, the front section of pivot is the transmission section, the cross-section of transmission section is square, corresponds, first square hole has been seted up at the middle part of swivel sleeve, the second square hole has been seted up at the middle part of swivel rod, first square hole the size of second square hole unanimous and with the transmission section matches.

Compared with the prior art, the utility model has the beneficial effects that: the device improves on the basis of former structure, and the structure is compacter, and spare part's quantity reduces, and it is more convenient to assemble, and the size reduces half, satisfies and accomplishes the installation in the limited space of electric block's casing, satisfies new market demand.

Drawings

FIG. 1 is a schematic front view of a new and improved structure of a point-contact brake assembly;

FIG. 2 is a schematic rear view of a new and improved structure of a point-contact brake assembly;

FIG. 3 is a schematic view of the structure at the rotational axis involved;

FIG. 4 is a schematic view of the torsion spring of FIG. 1;

FIG. 5 is a schematic view of a rotating lever involved;

FIG. 6 is a cross-sectional view of the rotary lever involved;

fig. 7 is a schematic view of a rotating sleeve of concern.

In the figure: 1. a mounting frame; 11. a left connecting lug; 12. a panel; 121. an abutting portion; 13. a right connecting ear; 2. a copper sleeve; 3. a rotating shaft; 31. a transmission section; 4. a pin shaft; 5. a rotating sleeve; 51. a circular arc section; 52. a first square hole; 6. a rotating rod; 61. a bending part; 62. a second square hole; 7. a torsion spring; 71. twisting arms; 8. a shaft clamp; 9. a first contact switch; 10. and a second contact switch.

Detailed Description

As shown in fig. 1 to 7, a novel point-contact brake device with improved structure in the embodiment of the utility model comprises a mounting frame 1, wherein the mounting frame 1 comprises an integrated panel 12, a left connecting lug 11 and a right connecting lug 13, bolt holes for connection are formed in the left connecting lug 11 and the right connecting lug 13, the mounting frame 1 is convenient to integrally mount on a shell of an electric hoist, an abutting part 121 is formed on one side of the panel 12, and the abutting part 121 is perpendicular to the panel 12; the rotating shaft 3 is rotatably arranged on the panel 12 in a penetrating way, and a pin shaft 4 is inserted into the rear end of the rotating shaft 3; the first point touch switch 9 and the second point touch switch 10 are fixed on the panel 12; the rotary sleeve 5 and the rotary rod 6 are arranged on the rotary shaft 3 in a penetrating way and synchronously rotate with the rotary shaft 3, the arc section 51 of the rotary sleeve 5 is close to the contact positions of the first point touch switch 9 and the second point touch switch 10, a torsion spring 7 is arranged between the rotary sleeve 5 and the rotary rod 6, two torsion arms 71 of the torsion spring 7 are respectively positioned at two sides of the abutting part 121, the end part of the rotary rod 6 is further provided with an integral bending part 61, and the bending part 61 is arranged between the two torsion arms 71; in addition, the panel 12, the left connecting lug 11 and the right connecting lug 13 are not arranged on a plane, so that the installation frame 1 is U-shaped as a whole; the abutting part 121 is formed by punching the panel 12, so that the processing is convenient; the panel 12 is provided with the copper bush 2, the copper bush 2 is connected with the panel 12 through riveting, the rotating shaft 3 is arranged in the copper bush 2 in a penetrating way, rotatable connection is realized, and the copper bush 2 has good wear resistance; a shaft clamp 8 is arranged at the front end of the rotating shaft 3, and the shaft clamp 8 limits the rotating sleeve 5 and the rotating rod 6 to axially move; the front section of the rotating shaft 3 is a transmission section 31, the section of the transmission section 31 is square, the corresponding first square hole 52 is formed in the middle of the rotating sleeve 5, the second square hole 62 is formed in the middle of the rotating rod 6, and the sizes of the first square hole 52 and the second square hole 62 are consistent and matched with the transmission section 31.

The device improves on the basis of former structure, and the structure is compacter, and spare part's quantity reduces, and it is more convenient to assemble, and the size reduces half, satisfies and accomplishes the installation in the limited space of electric block's casing, satisfies new market demand.

When in specific use, the utility model is described with reference to the drawings for convenient understanding;

the pin shaft 4 of the device is connected with a brake piece of the electric hoist, and when a brake signal is given to the electric hoist, the brake piece can rotate and the pin shaft 4 drives the rotating shaft 3 to rotate clockwise or anticlockwise; referring to fig. 1, when the rotating shaft 3 rotates clockwise, the arc section 51 of the rotating sleeve 5 is instantaneously contacted with the contact of the first contact switch 9, and when the rotating shaft 3 rotates anticlockwise, the arc section 51 of the rotating sleeve 5 is instantaneously contacted with the contact of the second contact switch 10, and the first contact switch 9 and the second contact switch 10 are both used for controlling the shutdown of the electric hoist, namely, when a brake signal is given, the electric hoist can control the motor to shutdown at the first time no matter in an ascending or descending stage; in the process of rotating the rotating shaft 3, the bending part 61 of the rotating rod 6 can act on one torsion arm 71, and the other torsion arm 71 is abutted against the abutting part 121 of the panel 12, so that the torsion spring 7 is elastically deformed, after the brake button is released, the elastic force of the torsion spring 7 can enable the rotating sleeve 5 to reset in time, and the arc section 51 returns to the position between the contacts between the first contact switch 9 and the second contact switch 10, so that the brake is convenient to use next time.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A novel point-contact type brake device with improved structure is characterized in that: comprising

The mounting frame (1), the mounting frame (1) comprises an integrated panel (12), a left connecting lug (11) and a right connecting lug (13), bolt holes for connection are formed in the left connecting lug (11) and the right connecting lug (13), an abutting part (121) is formed on one side of the panel (12), and the abutting part (121) is perpendicular to the panel (12);

the rotating shaft (3) can be rotatably arranged on the panel (12) in a penetrating mode, and a pin shaft (4) is inserted into the rear end of the rotating shaft (3);

a first point touch switch (9) and a second point touch switch (10), wherein the first point touch switch (9) and the second point touch switch (10) are both fixed on the panel (12);

the rotary sleeve (5) and the rotary rod (6), the rotary sleeve (5) and the rotary rod (6) are all worn to establish on the rotary shaft (3) and rotate with the rotary shaft (3) is synchronous, the circular arc section (51) of the rotary sleeve (5) with the contact position of first point touch switch (9) and second point touch switch (10) is close to, the rotary sleeve (5) with be provided with torsional spring (7) between rotary rod (6), two torsion arms (71) of torsional spring (7) are located respectively support the both sides of leaning on portion (121), the tip of rotary rod (6) still has integrative bending portion (61), bending portion (61) are between two torsion arms (71).

2. The structurally improved novel point-contact brake device according to claim 1, wherein: the panel (12), the left connecting lug (11) and the right connecting lug (13) are not arranged on a plane, so that the whole mounting frame (1) is U-shaped.

3. The structurally improved novel point-contact brake device according to claim 1, wherein: the abutting portion (121) is formed by punching from the face plate (12).

4. The structurally improved novel point-contact brake device according to claim 1, wherein: the panel (12) is provided with a copper sleeve (2), the copper sleeve (2) is connected with the panel (12) through riveting, and the rotating shaft (3) is arranged in the copper sleeve (2) in a penetrating mode to realize rotatable connection.

5. The structurally improved novel point-contact brake device according to claim 1, wherein: the front end of the rotating shaft (3) is provided with a shaft clamp (8), and the shaft clamp (8) limits the axial movement of the rotating sleeve (5) and the rotating rod (6).

6. The improved structure of the novel point-contact brake device according to claim 5, wherein: the front section of pivot (3) is transmission section (31), the cross-section of transmission section (31) is square, and is corresponding, first square hole (52) have been seted up at the middle part of swivel sleeve (5), second square hole (62) have been seted up at the middle part of swivel rod (6), first square hole (52) the size of second square hole (62) unanimous and with transmission section (31) match.