CN211946062U - Safety brake of crane drum - Google Patents
Safety brake of crane drum Download PDFInfo
- Publication number
- CN211946062U CN211946062U CN202020555905.6U CN202020555905U CN211946062U CN 211946062 U CN211946062 U CN 211946062U CN 202020555905 U CN202020555905 U CN 202020555905U CN 211946062 U CN211946062 U CN 211946062U
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- reel
- brake disc
- brake
- support
- pincers
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Abstract
The utility model provides a safety brake of hoist reel, including brake disc and braking pincers, its characterized in that: the brake disc is located the reel middle part, the reel part of brake disc both sides respectively sets up the wire rope fixed point, the reel corresponds the brake disc sets up annular opening, the reel is inside to correspond annular opening sets up the support frame, the brake disc with support frame fixed connection. In the use, if need brake, then start braking pincers centre gripping brake disc and brake the reel, because the brake disc is installed in the reel middle part, can reduce the required space of installation to a certain extent, simultaneously, avoid reel one end atress to make the whole atress of reel inhomogeneous, effectively improve reel stability.
Description
Technical Field
The utility model relates to a arresting gear for hoist, specific theory has related to a safety brake of hoist reel.
Background
The brake of the crane hoisting mechanism generally comprises a brake disc, a brake caliper and other mechanisms, when braking is needed, the brake caliper clamps the brake disc to brake, for example: chinese patent CN110775848A discloses a hoist, adopts brake drum, brake disc, band-type brake mechanism etc. to brake, however, the reel of hoist needs length longer, and installation space is great, and the brake disc is generally installed in one side at the reel, and reel tip atress is great in braking process for the whole atress of reel is inhomogeneous, influences reel stability.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The utility model aims at providing a safety brake of hoist reel to the not enough of prior art.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is:
the safety brake of the crane winding drum comprises a brake disc and a brake caliper, wherein the brake disc is positioned in the middle of the winding drum, the winding drum parts on two sides of the brake disc are respectively provided with a steel wire rope fixing point, the winding drum corresponds to the brake disc and is provided with an annular opening, the winding drum is internally provided with a support frame corresponding to the annular opening, and the brake disc is fixedly connected with the support frame.
Based on the aforesaid, be provided with the reel axle in the reel, the support frame is including wearing to locate two last support radials of reel axle, two support and leave the space between the radials, the brake disc install in among the space, the annular opening sets up the position circle, the position circle brake disc, two support radials correspond the trompil, mounting bolt fixed connection reel in this hole, support radials and brake disc.
Based on the above, support the radials with a plurality of locating holes of brake disc middle part evenly distributed, construction bolt fixed connection supports radials and brake disc in the locating hole.
Based on the above, the winding drum shaft is provided with the rotary encoder, the brake caliper comprises a support, a transverse slide arranged on the support, a fixed caliper fixed at one end of the transverse slide, and a movable caliper slidably mounted in the transverse slide, the fixed caliper and the movable caliper are provided with electromagnets with opposite winding directions of coils, the fixed caliper and the movable caliper are respectively positioned at two sides of the brake disc, and the rotary encoder is associated with the electromagnets.
Based on the above, the rotary encoder and the electromagnet are connected with a controller, and the controller controls the electromagnet to be opened or closed according to the output signal of the rotary encoder.
Based on the above, a return spring is arranged between the fixed pincers and the movable pincers.
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model provides a safety brake of hoist reel, in the use, if need brake, then start braking pincers centre gripping brake disc and brake the reel, because the brake disc is installed in the reel middle part, can reduce the required space of installation to a certain extent, simultaneously, avoid reel one end atress to make the whole atress of reel inhomogeneous, effectively improve reel stability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a brake disc and a brake caliper according to the present invention.
In the figure: 1. a reel; 2. a spool shaft; 3. a brake disc; 4. a brake caliper; 5. positioning rings; 6. supporting the web; 7. a bolt; 8. a bolt; 9. a transverse slideway; 10. fixing the pliers; 11. movable pliers; 12. a return spring.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
As shown in fig. 1-2, a safety brake for a crane winding drum includes a brake disc 3 and a brake caliper 4, the brake disc 3 is located in the middle of the winding drum 1, the portions of the winding drum 1 on both sides of the brake disc 3 are respectively provided with a wire rope fixing point, the winding drum 1 is provided with an annular opening corresponding to the brake disc 3, a support frame is provided in the winding drum corresponding to the annular opening, and the brake disc 3 is inserted into the annular opening and is fixedly connected with the support frame. In the use, if need brake, then start braking pincers centre gripping brake disc and brake the reel, because the brake disc is installed in the reel middle part, can reduce the required space of installation to a certain extent, simultaneously, avoid reel one end atress to make the whole atress of reel inhomogeneous, effectively improve reel stability. Specifically, in the present embodiment, the caliper may adopt a caliper structure in the prior art, such as: brake calipers disclosed in chinese patents CN110775848A, CN206569946U or other materials.
Further, be provided with reel axle 2 in the reel, the support frame is including wearing to locate two on the reel axle support radials 6 leave the space between two support radials 6, brake disc 3 install in among the space, the annular opening sets up position circle 5, position circle 5 brake disc 3, two support radials 6 correspond the trompil, 7 fixed connection reels of construction bolt, support radials 6 and brake disc 3 in this hole. Specifically, the position circle can extend for annular opening part and bend and form, also can be the position circle that adds in addition, and the position circle accessible welds in the annular opening fixed connection of reel, also can be through mounting fixed connection. In addition, the brake disc and the support spoke plate are fixed on the winding drum shaft, and the fixing mode can be fixed by adopting a key connection assembly in the prior art and can also be fixed by adopting other conventional fixing assemblies in the prior art.
Further, support radials 6 with a plurality of locating holes of brake disc 3 middle part evenly distributed, 8 fixed connection support radials 6 and brake disc 3 in the locating hole. To improve the strength of the connection, a shear sleeve may be placed in the hole and then secured with bolts.
In other embodiments, a rotary encoder may be further mounted on the spool shaft 2, the brake caliper 4 includes a bracket, a transverse slide 9 disposed on the bracket, a fixed caliper 10 fixed to one end of the transverse slide 9, and a movable caliper 11 slidably mounted in the transverse slide 9, electromagnets with opposite winding directions are disposed on the fixed caliper 10 and the movable caliper 11, the fixed caliper 10 and the movable caliper 11 are respectively disposed on two sides of the brake disc 3, and the rotary encoder is associated with the electromagnets. In the use, rotary encoder detects the rotational speed of reel, and when the sudden speed change stall of reel rotational speed, the electro-magnet circular telegram was pressed from both sides tightly, made the reel slow down braking. Specifically, the circuit of the electromagnet adopts the circuit in the prior art.
Furthermore, the rotary encoder and the electromagnet are connected with a controller, and the controller controls the electromagnet to be opened or closed according to the output signal of the rotary encoder. Specifically, the controller adopts circuits in the prior art for receiving and processing signals of the rotary encoder and controlling the opening and closing of the electromagnet.
Further, a return spring 12 is provided between the fixed jaw 10 and the movable jaw 11. When braking, the reset spring is extruded, after braking, the rotating speed of the winding drum is controlled, and when braking is not needed, the electromagnet is powered off and demagnetized, and the winding drum is separated under the action of the reset spring.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (6)
1. A safety brake of a crane drum comprises a brake disc and a brake caliper, and is characterized in that: the brake disc is located the reel middle part, the reel part of brake disc both sides respectively sets up the wire rope fixed point, the reel corresponds the brake disc sets up annular opening, the reel is inside to correspond annular opening sets up the support frame, the brake disc with support frame fixed connection.
2. A safety brake for a crane drum as claimed in claim 1, characterized in that: be provided with the reel axle in the reel, the support frame is including wearing to locate two epaxial two support radials of reel, leave the space between two support radials, the brake disc install in among the space, the annular opening sets up the position circle, the position circle brake disc, two support radials correspond the trompil, mounting bolt fixed connection reel in this hole, support radials and brake disc.
3. A safety brake for a crane drum as claimed in claim 2, characterized in that: the brake disc is characterized in that a plurality of positioning holes are uniformly distributed in the middle of the supporting radial plate and the brake disc, and the supporting radial plate and the brake disc are fixedly connected through mounting bolts in the positioning holes.
4. A safety brake for a crane drum as claimed in any one of claims 1 to 3, characterized in that: the brake caliper comprises a support, a transverse slide arranged on the support, fixed pincers fixed at one end of the transverse slide and movable pincers slidably arranged in the transverse slide, electromagnets with opposite winding directions of coils are arranged on the fixed pincers and the movable pincers, the fixed pincers and the movable pincers are respectively positioned on two sides of the brake disc, and the rotary encoder is associated with the electromagnets.
5. A safety brake for a crane drum as claimed in claim 4, characterized in that: the rotary encoder and the electromagnet are connected with a controller, and the controller controls the electromagnet to be opened or closed according to an output signal of the rotary encoder.
6. A safety brake for a crane drum as claimed in claim 4, characterized in that: and a return spring is arranged between the fixed pincers and the movable pincers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020555905.6U CN211946062U (en) | 2020-04-15 | 2020-04-15 | Safety brake of crane drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020555905.6U CN211946062U (en) | 2020-04-15 | 2020-04-15 | Safety brake of crane drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211946062U true CN211946062U (en) | 2020-11-17 |
Family
ID=73164103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020555905.6U Active CN211946062U (en) | 2020-04-15 | 2020-04-15 | Safety brake of crane drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211946062U (en) |
-
2020
- 2020-04-15 CN CN202020555905.6U patent/CN211946062U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |