CN109205496B - Rotary pneumatic brake of port crane - Google Patents
Rotary pneumatic brake of port crane Download PDFInfo
- Publication number
- CN109205496B CN109205496B CN201710533480.1A CN201710533480A CN109205496B CN 109205496 B CN109205496 B CN 109205496B CN 201710533480 A CN201710533480 A CN 201710533480A CN 109205496 B CN109205496 B CN 109205496B
- Authority
- CN
- China
- Prior art keywords
- brake shoe
- brake
- pneumatic
- valve
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000003867 tiredness Effects 0.000 description 1
- 208000016255 tiredness Diseases 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
- F16D65/09—Pivots or supporting members therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to a rotary pneumatic brake of a port crane, which comprises the following components: the brake power system is a pneumatic brake system, and the pneumatic brake system comprises: when the pneumatic foot brake valve is started, the air cylinder pulls the two support plates to be close to the middle to enable the brake shoe assembly to brake. The pneumatic braking system is adopted to brake the rotating part of the crane, so that the operation is light, the braking position is more accurate, and the operator is not tired even if the crane is operated for a long time, so that the crane is willing to use the crane. Due to the fact that the brake shoe limiting plate and the brake shoe pressing plate are arranged, the structure is more convenient to install or detach the brake shoe, the screw can be replaced immediately when the screw is required to be replaced, and maintenance efficiency is greatly improved.
Description
Technical Field
The invention relates to a crane brake, in particular to a rotary pneumatic brake of a port crane.
Background
In the operation of the port crane, the rotary mechanism is started by the motor to enable the boom to rotate so as to displace the goods to realize goods loading and unloading, the motor generates larger inertia due to heavier rotating parts when driving the rotary mechanism to rotate, the current crane adopts the electromagnetic valve to control the motor to work, the motor rotates to work when being electrified, the power failure motor stops working, the rotating arm is often stopped at an accurate position due to the action of inertia, so that a great deal of hydraulic brakes are adopted to brake, the rotary mechanism stops rotating by pulling the brake mechanism through the hydraulic cylinder to achieve the purpose of stopping, but the hydraulic brakes are very tired by foot operation, especially long-term operation is more tired, so that a plurality of operators stop at the position by inertia according to experience, but are often difficult to accurately brake in place, reverse gear is played after the operation is repeated until the position is stopped, the operation is easy to damage equipment until the operation is repeated, and the hoisting container is easy to cause potential safety hazards due to shaking, so that the rotary pneumatic brake of the port crane is very necessary to study and light and convenient to operate.
Disclosure of Invention
The invention aims to solve the problems and provides a rotary pneumatic brake of a port crane.
The technical scheme adopted by the invention is as follows: a rotary pneumatic brake for a port crane, comprising: the brake shoe assembly comprises a support plate, connecting pins, equal withdrawal distances, a brake shoe assembly and a brake power system, wherein one support plate is respectively arranged at the left side and the right side, the lower ends of the support plates are connected with the equal withdrawal distances with snap fasteners, the brake shoe assembly is connected with the middle parts of the two support plates, the brake power system is a pneumatic brake system, and the pneumatic brake system comprises: the pneumatic foot brake valve, manual pneumatic valve, cylinder, piston connecting rod and lock wheel, its bottom of cylinder pass through the one end of pivot connection at the mounting panel, one end screw thread connection cylinder piston in the piston connecting rod, the other end of piston connecting rod passes through the pivot seat and connects the lock wheel, be equipped with the positioning handle of locking piston connecting rod on the pivot seat, be equipped with the screw rod on the lock wheel axle and pass through screw rod and piston connecting rod threaded connection, can adjust the interval of two support locks when rotating the lock wheel, the inlet end that the cylinder was contracted action is connected with pneumatic foot brake valve's gas outlet through manual valve, the cylinder exhaust end communicates with the atmosphere through the filter screen, the piston bottom in the cylinder is equipped with the cylinder reset spring that promotes the piston and outwards resets, pneumatic foot brake valve's air inlet and compressed air pump air source output intercommunication, when starting pneumatic foot brake valve, cylinder pulling two mounting panels draw close to the centre and make brake shoe assembly braking.
The two brake shoe assemblies are arranged in a bilateral symmetry mode, each brake shoe assembly comprises a brake shoe seat, a brake shoe, two brake shoe limiting plates and two brake shoe pressing plates, each brake shoe limiting plate is composed of a fixing plate and two limiting blocks, limiting blocks are respectively arranged on two sides of each fixing plate, each limiting block and the fixing plate form a limiting groove with an included angle of 90 degrees, two screw connecting holes are formed in each fixing plate, one end of each brake shoe is clamped in each limiting groove to one third of the thickness of a non-braking surface, the other end of each brake shoe is clamped in each limiting groove of the other brake shoe limiting plate to one third of the thickness of the non-braking surface, a brake shoe pressing plate is arranged on each brake shoe pressing plate, and screws penetrate through the brake shoe pressing plates and the brake shoe limiting plates to be connected with the brake shoe seats and clamp the brake shoe.
The elasticity of the cylinder return spring is smaller than the thrust of the piston.
The pneumatic foot brake valve is a series double-cavity brake valve.
The manual air valve is used for preventing the crane arm from rotating freely when the crane is not in use, and the manual air valve is braked by a hand when the crane is not in use, so that the brake shoe keeps clamping force, and the crane arm can not rotate at will, thereby being safer.
The lock wheel is used for adjusting the proper distance between the brake shoe and the brake shoe clamping brake post before braking, so that the brake shoe can be conveniently adjusted when the brake shoe is worn seriously, and the brake can always keep the optimal working state. The lock wheel positioning handle is used for positioning the lock wheel, and can be screwed after the lock wheel is adjusted, so that the position of the lock wheel adjustment cannot be changed.
The invention provides a rotary pneumatic brake of a port crane, which adopts a pneumatic brake system to brake a crane rotary part of a wharf, is light in operation and free from tiredness even in long-term operation, and is willing for operators to use. Because the pneumatic foot brake valve is adopted, the magnitude of the braking force can be controlled according to the magnitude of the stepping force, the braking stop is slow when the stepping force is small, the braking stop is fast when the stepping force is large, the braking is completely braked when the stepping force is hard, the inertia can be reduced by braking with small force when the braking device is fast rotated to the parking position, and the braking is slightly hard when the braking device is stopped to the parking position, so that the braking is more accurate because the inertia is greatly reduced. Because the brake shoe limiting plate and the brake shoe pressing plate are arranged, the structure is more convenient to install or disassemble, the screw is required to be replaced and disassembled, the brake shoe can be replaced immediately, the traditional brake shoe is riveted with the rear brake shoe seat through a plurality of rivets, disassembly or installation is very troublesome, rivet holes are needed to be riveted after disassembly, a professional person can often use a few hours to get good, the brake shoe can be easily disassembled and assembled only by 1-3 minutes in the traditional connecting method, and the maintenance efficiency is greatly improved.
Drawings
Fig. 1 is a schematic perspective view of one embodiment of the present invention.
Fig. 2 is a perspective view of the opposite direction of fig. 1.
FIG. 3 is a schematic perspective view of the brake shoe assembly of FIG. 1.
Fig. 4 is a perspective view of the back view of fig. 3.
Fig. 5 is an exploded view of the fig. 3 component.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 and 2, the present invention includes: the hydraulic braking system comprises a support plate 1, a connecting pin 3, equal withdrawal distances 4, a brake shoe assembly 2 and a braking power system, wherein the support plate is respectively arranged at the left side and the right side, and is fixed to the original position of a wharf crane braking brake through a shaft pin when in use. The lower extreme connection of mounting panel has the equal withdrawal of primary and secondary knot, and brake shoe assembly is connected at the middle part of two mounting panels, and braking driving system is pneumatic braking system, pneumatic braking system include pneumatic foot brake valve 10, manual pneumatic valve 9, cylinder 8, piston connecting rod 7 and lock wheel 5, cylinder 8 its bottom pass through the pivot and connect in one of them one end of mounting panel, piston connecting rod 7 one end threaded connection cylinder piston, the other end of piston connecting rod passes through axle pin seat 6 and connects lock wheel 5, is equipped with lock wheel location handle 61 on the axle pin seat, is equipped with the screw rod on the lock wheel axle and passes through screw rod and piston connecting rod threaded connection, when the adjustable locking interval of two supports of rotation lock wheel, the cylinder air inlet end 81 of piston action is through the gas outlet of pneumatic valve 9 of trachea connection, the pneumatic valve air inlet communicates with pneumatic foot brake valve's gas outlet 101 through the trachea, pneumatic foot brake valve's air inlet 102 and compressed air pump air source output end intercommunication, cylinder air outlet 82 passes through the filter screen and atmosphere intercommunication, the cylinder reset spring that the piston bottom was equipped with the promotion piston outwards resets, this embodiment adopts foot to establish ties dual chamber brake valve as a part, this brake valve draws down as a pneumatic valve and draws in the air inlet valve, the direction of the air inlet valve of the manual valve assembly is connected to the air inlet, the air inlet of the manual valve is connected with the air inlet of pneumatic valve assembly, the direction of the brake valve is drawn down, the air inlet valve action is drawn down to the air inlet valve is connected to the air inlet of air valve is shown to the air inlet, and the air valve is moved down, and the direction is moved down to the air valve is moved down to the air inlet. Thus, the braking force can be controlled according to the force of stepping on the pedal.
As shown in fig. 3 to 5, the present invention includes two brake shoe assemblies, one each on the left and right, each brake shoe assembly 2 includes a brake shoe seat 21, a brake shoe 24, two brake shoe limiting plates 22 and two metal brake shoe pressing plates 21, brake shoes are brake pads, two brake shoe limiting plates 22 and two brake shoe pressing plates 21, as one up and down in the direction of the drawing, each brake shoe limiting plate 22 is composed of a fixing plate 222 and two limiting blocks 221, metal folding members are integrated, limiting blocks are respectively arranged on two sides of the fixing plate, the included angle between each limiting block and the fixing plate is 90 degrees to form a limiting groove, two screw connecting holes 224 are arranged on the fixing plate, one end of each brake shoe is clamped in the limiting groove 223 in a thickness from one third of a non-brake face, so that when the brake shoe is braked, the other end is not worn in the limiting groove from one third of a non-brake face, namely the back face of the brake shoe, namely the non-friction face when the brake shoe is braked, the brake shoe pressing plates 21 are arranged on the brake shoe limiting plates, two connecting holes 211 are arranged on the brake shoe pressing plates, and the two screw connecting plates 26 penetrate through the brake shoe connecting holes 23 of the brake shoe seat. The structure is convenient to install or disassemble the brake shoe, the screw can be replaced immediately after the screw is replaced, the traditional brake shoe is riveted with the rear brake shoe holder through a plurality of rivets, disassembly or installation is quite troublesome, rivet holes are further riveted after disassembly, a professional person can often use a few hours to get good, and the existing connecting method can be provided greatly as long as 1-3 minutes is needed, and the brake shoe can be easily disassembled and installed.
The pneumatic braking system is adopted to facilitate the braking operation of the rotating part of the wharf crane, and the wharf crane is not tired even in long-term operation, so that an operator is willing to use the wharf crane. Because the serial double-cavity brake valve of the large-sized automobile is adopted, the brake valve can be directly used after being arranged on the bracket, and the performance is quite stable. When the device is used, the strength of braking can be controlled according to the strength of stepping on by foot, so that the inertia can be reduced by braking with small strength when the device is fast to a rotating parking position, and the device is slightly forced to brake when the device is fast to the parking position, and the braking is more accurate because the inertia is greatly reduced.
Claims (2)
1. A rotary pneumatic brake for a port crane, comprising: the brake shoe assembly comprises a support plate (1), a connecting pin (3), equal withdrawal distances (4), a brake shoe assembly (2) and a brake power system, wherein the support plate is respectively arranged at the left side and the right side, the lower end of the support plate is connected with the equal withdrawal distances with a snap fastener, and the brake shoe assembly is connected with the middle parts of the two support plates, and the brake shoe assembly is characterized in that: the brake power system shown is a pneumatic brake system comprising: the pneumatic foot brake valve (10), the manual air valve (9), the air cylinder (8), the piston connecting rod (7) and the lock wheel (5), wherein the bottom of the air cylinder (8) is connected to one end of the support plate through a shaft pin, one end of the piston connecting rod (7) is in threaded connection with the air cylinder piston, the other end of the piston connecting rod is connected with the lock wheel (5) through a shaft pin seat (6), a positioning handle (61) for locking the piston connecting rod is arranged on the shaft pin seat, a screw is arranged on the lock wheel shaft and is in threaded connection with the piston connecting rod through the screw, when the lock wheel is rotated, the locking distance between the two supports can be adjusted, an air inlet end (81) of the air cylinder for shrinking action is connected with an air outlet (101) of the pneumatic foot brake valve through the manual air valve (9), an air cylinder exhaust end (82) is communicated with the atmosphere through a filter screen, an air cylinder reset spring for pushing the piston to outwards reset is arranged at the bottom of the piston in the air cylinder, an air inlet (102) of the pneumatic foot brake valve is communicated with an air source output end of the compressed air pump, and when the pneumatic foot brake valve is started, the air cylinder pulls the two support plates to approach the middle to brake shoe assembly; the two brake shoe assemblies (2) are symmetrically arranged left and right, each brake shoe assembly comprises a brake shoe seat (23), a brake shoe (24), two brake shoe limiting plates (22) and two brake shoe pressing plates (21), each brake shoe limiting plate (22) consists of a fixing plate (222) and two limiting blocks (221), limiting blocks are respectively arranged on two sides of each fixing plate, an included angle between each limiting block and each fixing plate is 90 degrees to form a limiting groove, two screw connecting holes (224) are formed in each fixing plate, one end of each brake shoe is clamped in one limiting groove (223) from one third of the thickness of the other brake shoe to one third of the thickness of the other brake shoe, the other end of each brake shoe is clamped in the limiting groove of the other brake shoe limiting plate, a brake shoe pressing plate (21) is arranged on each brake shoe pressing plate, and two screw connecting holes (211) are formed in each brake shoe pressing plate, and the screws penetrate through the brake shoe pressing plates and the brake shoe limiting plates to be connected with the brake shoe seat (23) and clamp the brake shoe; the elasticity of the cylinder return spring is smaller than the thrust of the piston.
2. The rotary pneumatic brake of a port crane of claim 1, wherein: the pneumatic foot brake valve is a series double-cavity brake valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710533480.1A CN109205496B (en) | 2017-07-03 | 2017-07-03 | Rotary pneumatic brake of port crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710533480.1A CN109205496B (en) | 2017-07-03 | 2017-07-03 | Rotary pneumatic brake of port crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109205496A CN109205496A (en) | 2019-01-15 |
| CN109205496B true CN109205496B (en) | 2024-01-26 |
Family
ID=64992245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710533480.1A Active CN109205496B (en) | 2017-07-03 | 2017-07-03 | Rotary pneumatic brake of port crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109205496B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1418630A (en) * | 1971-12-16 | 1975-12-24 | Automotive Prod Co Ltd | Internal shoe drum brakes and to fluid pressure braking systems including such brakes |
| CN2716581Y (en) * | 2004-07-05 | 2005-08-10 | 福建省农业机械化研究所 | Hydraulic block brake for hoisting machinery |
| CN2886199Y (en) * | 2006-04-30 | 2007-04-04 | 焦作市虹欣制动器有限公司 | Easy-to-assemble-disassemble brake |
| CN202152047U (en) * | 2011-06-24 | 2012-02-29 | 江西华伍制动器股份有限公司 | Pneumatic power hydraulic pedal brake system |
| CN202465082U (en) * | 2012-02-29 | 2012-10-03 | 重庆市双鹰制动器有限公司 | Double-driving travelling wheel braking system applied to crane |
| CN203006826U (en) * | 2012-11-23 | 2013-06-19 | 天津正本自控系统有限公司 | Electromagnetic block type braking device |
-
2017
- 2017-07-03 CN CN201710533480.1A patent/CN109205496B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1418630A (en) * | 1971-12-16 | 1975-12-24 | Automotive Prod Co Ltd | Internal shoe drum brakes and to fluid pressure braking systems including such brakes |
| CN2716581Y (en) * | 2004-07-05 | 2005-08-10 | 福建省农业机械化研究所 | Hydraulic block brake for hoisting machinery |
| CN2886199Y (en) * | 2006-04-30 | 2007-04-04 | 焦作市虹欣制动器有限公司 | Easy-to-assemble-disassemble brake |
| CN202152047U (en) * | 2011-06-24 | 2012-02-29 | 江西华伍制动器股份有限公司 | Pneumatic power hydraulic pedal brake system |
| CN202465082U (en) * | 2012-02-29 | 2012-10-03 | 重庆市双鹰制动器有限公司 | Double-driving travelling wheel braking system applied to crane |
| CN203006826U (en) * | 2012-11-23 | 2013-06-19 | 天津正本自控系统有限公司 | Electromagnetic block type braking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109205496A (en) | 2019-01-15 |
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