CN105545989A - Rising arm speed governor - Google Patents
Rising arm speed governor Download PDFInfo
- Publication number
- CN105545989A CN105545989A CN201610034986.3A CN201610034986A CN105545989A CN 105545989 A CN105545989 A CN 105545989A CN 201610034986 A CN201610034986 A CN 201610034986A CN 105545989 A CN105545989 A CN 105545989A
- Authority
- CN
- China
- Prior art keywords
- brake
- shell
- braking
- brake disc
- lock shaft
- 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.)
- Pending
Links
Classifications
-
- 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
- F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed
Abstract
The invention discloses a rising arm speed governor. A locking shaft is arranged in an installation machine base and provided with a first transmission gear, a brake disc, brake balls, an inner brake shell and an outer brake shell. A containing cavity is formed between the inner brake shell and the outer brake shell. The brake disc is arranged in the containing cavity. The inner brake shell and the brake disc rotate synchronously with the locking shaft. The outer brake shell is static relative to the inner brake shell. The circumferential wall of the brake disc is provided with a plurality of grooves, and the brake balls are placed in the grooves respectively. The upper portion of the outer brake shell is provided with a brake groove. The distance between the brake groove and the outer circumferential wall of the brake disc is smaller than the diameter of the brake balls. The rising arm speed governor has the advantages that centrifugal force during overspeed is used for throwing the brake balls out of the grooves of the brake disc, the brake balls enter the brake groove, thereby being clamped between the brake groove and the brake disc, and the speed governing purpose is achieved; the structure is simple, the performance is reliable, and a good speed governing function is achieved; meanwhile, according to the rising arm speed governor, a telescopic arm machine does not need to be transformed, so that the rising arm speed governor is convenient to popularize.
Description
Technical field
The present invention relates to a kind of speed limiting device, specifically, relate to and face upward arm speed limiting device.
Background technique
At present, the structural type of window cleaning equipment is more and more diversified, is more and more applied in high-rise building.Window cleaning equipment, as a high risk industries, is not still put in special equipment and goes, and its NBS is since promulgation in 2003, never upgrades.In the NBS of 2003 editions, limited to the requirement of window cleaning equipment, a lot of requirement is not listed, and causes abundant not to the consideration of the safety protection aspect of product of all enterprises.Such as, in window cleaning equipment standard, require that lifting mechanism must arrange standby braking, i.e. second protection, but do not have this requirement for facing upward arm-type telescopic boom, therefore, telescopic boom in the market does not design the device of overspeed protection.
Summary of the invention
The object of the present invention is to provide and face upward arm speed limiting device, effectively can solve existing telescopic boom window cleaning equipment does not have the problem of stall protection for facing upward arm-type telescopic boom.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: face upward arm speed limiting device, comprise mounting base, lock shaft, described lock shaft is arranged in mounting base, described lock shaft is provided with the first driving gear, described first driving gear engages with the driving rack of telescopic boom, described lock shaft is also provided with stall protection device, described stall protection device comprises brake disc, braking ball, braking inner casing and braking shell, receiving cavity is formed between described braking inner casing and braking shell, described brake disc is arranged in receiving cavity, described braking inner casing and brake disc and lock shaft synchronous axial system, described braking shell is static relative to braking inner casing, the peripheral wall of brake disc is provided with some grooves, described braking ball is placed in groove, the top of described braking shell has the breaker slot communicated with receiving cavity, the distance of described breaker slot distance brake disc outer circle wall is less than the diameter of braking ball.
Preferably, described braking inner casing comprises left inside shell and right inside shell, and described left inside shell comprises the housing of ring, and described housing is provided with the convex eaves extended radially outward, and is provided with friction plate between described convex eaves and brake disc, and described right inside shell is consistent with left inside shell structure; Play buffer function by friction plate, namely this speed limiting device can only provide a certain maximum braking moment, and exceeding part will skid.
Preferably, described lock shaft is provided with at least one shaft shoulder, and described braking inner casing one end face withstands on the shaft shoulder, and the other end of described braking inner casing contacts with disc spring, and described disc spring is set on lock shaft; The frictional force between friction plate and brake disc is controlled by disc spring.
Preferably, described lock shaft is also provided with and regulates disc spring and the locking nut of braking inner casing pressure, between described locking nut and disc spring, be also provided with clamping pad; The pressure of disc spring is regulated by locking nut.
Preferably, described mounting base comprises fixed base and is positioned at the active base above fixed base, described lock shaft is fixed in fixed base, described active base side and fixed base are rotationally connected, the opposite side of active base is provided with distance adjusting means, be provided with the second driving gear in described active base, described first driving gear is engaged with the driving rack of telescopic boom by the second driving gear; Controlled the angle of active base and fixed base by distance adjusting means, thus make the telescopic boom of the adaptive multiple different model of the second driving gear energy.
Preferably, described distance adjusting means comprises regulating tie bar, Regulation spring and adjusting nut, described fixed base is provided with through hole, described regulating tie bar upper end is fixed in active base, the lower end of regulating tie bar is through through hole, and adjusting nut is screwed in the lower end of regulating tie bar, and Regulation spring is set on regulating tie bar, fixed base is withstood in the upper end of Regulation spring, and the lower end of Regulation spring withstands on adjusting nut; By adjusting nut and Regulation spring, control the angle of active base and fixed base, be convenient to regulate and fix.
Compared with prior art, advantage of the present invention is: utilize centrifugal force during hypervelocity, the groove that braking ball throws away brake disc is entered breaker slot, thus make braking ball be stuck between breaker slot and brake disc, reach the object of speed limit, this apparatus structure is simple, reliable performance, play good speed limit effect to telescopic boom machine, this device does not also need to transform telescopic boom machine simultaneously, is convenient to popularize.
Accompanying drawing explanation
Fig. 1 is the sectional view that the present invention faces upward arm speed limiting device plan view;
Fig. 2 is the right elevation of Fig. 1;
Fig. 3 is that the present invention faces upward in arm speed limiting device the sectional view braking inner casing and braking housing combination;
Fig. 4 is the structural representation that the present invention faces upward trig loop in arm speed limiting device.
Embodiment
Consult Fig. 1, Fig. 2, Fig. 3 is the embodiment that the present invention faces upward arm speed limiting device, face upward arm speed limiting device, comprise mounting base 1, lock shaft 2, described lock shaft 2 is arranged in mounting base 1, described lock shaft 2 is provided with the first driving gear 3, described first driving gear 3 engages with the driving rack of telescopic boom, described lock shaft 2 is also provided with stall protection device, described stall protection device comprises brake disc 4, braking ball 7, braking inner casing 5 and braking shell 6, receiving cavity 8 is formed between described braking inner casing 5 and braking shell 6, described brake disc 4 is arranged in receiving cavity 8, described braking inner casing 5 and brake disc 4 and lock shaft 2 synchronous axial system, described braking shell 6 is static relative to braking inner casing 5, the peripheral wall of brake disc 4 is provided with some grooves 9, described braking ball 7 is placed in groove 9, the top of described braking shell 6 has the breaker slot 10 communicated with receiving cavity 8, described breaker slot 10 is less than the diameter of braking ball 7 apart from the distance of brake disc 4 outer circle wall
Described braking inner casing 5 comprises left inside shell 11 and right inside shell 12, described left inside shell 11 comprises the housing 13 of ring, described housing 13 is provided with the convex eaves 14 extended radially outward, friction plate 15 is provided with between described convex eaves 14 and brake disc 4, described right inside shell 12 is consistent with left inside shell 11 structure, described lock shaft 2 is provided with at least one shaft shoulder, described braking inner casing 5 one end face withstands on the shaft shoulder, the other end of described braking inner casing 5 contacts with disc spring 16, described disc spring 16 is set on lock shaft 2, described lock shaft 2 is also provided with and regulates disc spring 16 and the locking nut 17 braking inner casing 5 pressure, clamping pad 18 is also provided with between described locking nut 17 and disc spring 16.
The active base 23 that described mounting base 1 comprises fixed base 22 and is positioned at above fixed base 22, described lock shaft 2 is fixed in fixed base 22, described active base side and fixed base 22 are rotationally connected, the opposite side of active base is provided with distance adjusting means, described distance adjusting means comprises regulating tie bar 25, Regulation spring 26 and adjusting nut 27, described fixed base 22 is provided with through hole, described regulating tie bar 25 upper end is fixed in active base 23, the lower end of regulating tie bar 25 is through through hole, adjusting nut 27 is screwed in the lower end of regulating tie bar 25, Regulation spring 26 is set on regulating tie bar 25, fixed base 22 is withstood in the upper end of Regulation spring 26, the lower end of Regulation spring 26 withstands on adjusting nut 27, the second driving gear 24 is provided with in described active base 23, described first driving gear 3 is engaged with the driving rack of telescopic boom by the second driving gear 24.
Braking shell 6 can be fixedly connected with the miscellaneous part of window cleaning equipment, gap is left between left inside shell 11 and right inside shell 12, so that the frictional force better between adjustable brake dish 4 and friction plate 15, and convex eaves 14 can be positioned at the position in the middle part of left inside shell 11, leave enough positions between the convex eaves 14 of left inside like this shell 11 and the convex eaves 14 of right inside shell 12 and place brake disc 4, and rolling bearing can be socketed on the left of the convex eaves 14 of left inside shell 11 and on the right side of the convex eaves 14 of right inside shell 12, described braking shell 6 comprises left outside shell 19, right casing 20 and trig loop 21, described trig loop 21 is arranged between left outside shell 19 and right casing 20, as shown in Figure 4, described breaker slot 10 is opened on trig loop 21 inwall, left outside shell 19 is connected with left inside shell 11 by rolling bearing, right casing 20 is connected with right inside shell 12 by rolling bearing, trig loop 21 is clipped between left outside shell 19 and right casing 20.The elastic force of disc spring 16 is regulated by locking nut 17, thus the frictional force controlled between friction plate 15 and brake disc 4, regulating and controlling nut 27, regulate the angle between active base 23 and fixed base 22, second driving gear 24 can be engaged preferably with the driving rack of telescopic boom, thus the speed of driving rack can accurately be delivered on lock shaft 2.When telescopic boom hypervelocity glides, drive the overspeed rotation of the second driving gear 24, second driving cog engages with the first driving gear 3 tooth on lock shaft 2 end, thus drive the overspeed rotation of lock shaft 2, brake disc 4 and lock shaft 2 synchronous axial system, thus drive brake disc 4 high speed rotating, during brake disc 4 high speed rotating, because brake disc 4 synchronous axial system followed by braking ball 7, when speed reaches a timing, braking ball 7 is due to centrifugal action, depart from groove 9 and enter breaker slot 10, thus braking ball 7 is stuck between breaker slot 10 and brake disc 4 enter braking lock dead position, thus reach the effect of braking lock mandrel 2.In order to avoid the locked lock shaft 2 of perfect rigidity, prevent impact coefficient excessive, cause the fault of machinery, lock shaft 2 is not complete locking state, and it has a maximum locking torque, but when impact force exceedes maximum locking torque, because the connection between brake disc 4 and braking inner casing 5 is connected by wearing piece, there is relative sliding between its brake disc 4 and braking inner casing 5, thus play buffer function, namely this speed limiting device can only provide a certain maximum braking moment, and exceeding part will skid.Therefore, this speed limiting device not break simultaneously, it can not brake large arm completely, but restriction large arm hypervelocity glides, and the large arm that hypervelocity is glided is decelerated to safe gliding speed.Meanwhile, if when normally working, the situation that large arm stretching speed is constant, rolls in the breaker slot 10 that braking ball 7 remains on brake disc 4, can not actuate latch position, thus realizes the inoperative object of normal this mechanism of work.This device can meet the different elevation angle; the speed limit effect of different joint number arm; namely can with facing upward on arm; also can be used on horizontal arm; as long as when meeting total restraining moment; be applicable in different structures; fundamentally solve the second protection of Purely mechanical; prevent large arm to exceed the speed limit the possibility glided, to solve in current engineering can not problem, the Security of flexible arm type machine is improved a lot; rational in infrastructure, Security is high; original base of design sets up mechanism, highly versatile, meet Practical Project demand.
The foregoing is only specific embodiments of the invention, but technical characteristics of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and the change done or modification are all encompassed among the scope of the claims of the present invention.
Claims (7)
1. face upward arm speed limiting device, it is characterized in that: comprise mounting base (1), lock shaft (2), described lock shaft (2) is arranged in mounting base (1), described lock shaft (2) is provided with the first driving gear (3), described first driving gear (3) is engaged with the driving rack of telescopic boom, (2) are also provided with stall protection device to described lock shaft, described stall protection device comprises brake disc (4), braking ball (7), braking inner casing (5) and braking shell (6), receiving cavity (8) is formed between described braking inner casing (5) and braking shell (6), described brake disc (4) is arranged in receiving cavity (8), described braking inner casing (5) and brake disc (4) and lock shaft (2) synchronous axial system, described braking shell (6) is static relative to braking inner casing (5), the peripheral wall of brake disc (4) is provided with some grooves (9), described braking ball (7) is placed in groove (9), the top of described braking shell (6) has the breaker slot (10) communicated with receiving cavity (8), the distance of described breaker slot (10) distance brake disc (4) outer circle wall is less than the diameter of braking ball (7).
2. face upward arm speed limiting device as claimed in claim 1, it is characterized in that: described braking inner casing (5) comprises left inside shell (11) and right inside shell (12), described left inside shell (11) comprises the housing (13) of ring, described housing (13) is provided with the convex eaves (14) extended radially outward, be provided with friction plate (15) between described convex eaves (14) and brake disc (4), described right inside shell (12) is consistent with left inside shell (11) structure.
3. face upward arm speed limiting device as claimed in claim 2, it is characterized in that: described lock shaft (2) is provided with at least one shaft shoulder, described braking inner casing (5) end face withstands on the shaft shoulder, the other end of described braking inner casing (5) contacts with disc spring (16), and described disc spring (16) is set on lock shaft (2).
4. face upward arm speed limiting device as claimed in claim 3, it is characterized in that: described lock shaft (2) is also provided with and regulates disc spring (16) and the locking nut (17) of braking inner casing (5) pressure, between described locking nut (17) and disc spring (16), be also provided with clamping pad (18).
5. face upward arm speed limiting device as claimed in claim 1, it is characterized in that: described braking shell (6) comprises left outside shell (19), right casing (20) and trig loop (21), described trig loop (21) is arranged between left outside shell (19) and right casing (20), and described breaker slot (10) is opened on trig loop (21) inwall.
6. face upward arm speed limiting device as claimed in claim 1, it is characterized in that: described mounting base (1) comprises fixed base (22) and is positioned at the active base (23) of fixed base (22) top, described lock shaft (2) is fixed in fixed base (22), described active base side and fixed base (22) are rotationally connected, the opposite side of active base is provided with distance adjusting means, the second driving gear (24) is provided with in described active base (23), described first driving gear (3) is engaged with the driving rack of telescopic boom by the second driving gear (24).
7. face upward arm speed limiting device as claimed in claim 6, it is characterized in that: described distance adjusting means comprises regulating tie bar (25), Regulation spring (26) and adjusting nut (27), described fixed base (22) is provided with through hole, described regulating tie bar (25) upper end is fixed in active base (23), the lower end of regulating tie bar (25) is through through hole, adjusting nut (27) is screwed in the lower end of regulating tie bar (25), Regulation spring (26) is set on regulating tie bar (25), fixed base (22) is withstood in the upper end of Regulation spring (26), the lower end of Regulation spring (26) withstands on adjusting nut (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610034986.3A CN105545989A (en) | 2016-01-19 | 2016-01-19 | Rising arm speed governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610034986.3A CN105545989A (en) | 2016-01-19 | 2016-01-19 | Rising arm speed governor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105545989A true CN105545989A (en) | 2016-05-04 |
Family
ID=55825420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610034986.3A Pending CN105545989A (en) | 2016-01-19 | 2016-01-19 | Rising arm speed governor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105545989A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116022681A (en) * | 2023-03-29 | 2023-04-28 | 德马科起重机械有限公司 | Stall self-locking device of crane |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004144124A (en) * | 2002-10-22 | 2004-05-20 | Nsk Ltd | Actuator |
| CN101684847A (en) * | 2008-09-28 | 2010-03-31 | 陈伯恒 | Roller type mechanical brake |
| CN201925372U (en) * | 2010-12-11 | 2011-08-10 | 九江精密测试技术研究所 | Automatic locking mechanism for rotary shaft system |
| CN103637741A (en) * | 2013-11-12 | 2014-03-19 | 平湖普英特高层设备有限公司 | Overspeed anti-slip rail locker for window cleaning device |
| CN203852290U (en) * | 2014-05-21 | 2014-10-01 | 上海普英特高层设备有限公司 | Overrun brake, brake device, brake system and window cleaning machine |
| CN204878454U (en) * | 2015-08-31 | 2015-12-16 | 浙江瑞德森机械有限公司 | Auxiliary brake planetary reducer |
| CN205315560U (en) * | 2016-01-19 | 2016-06-15 | 平湖拓伟思自动化设备有限公司 | Face upward arm overspeed governor |
-
2016
- 2016-01-19 CN CN201610034986.3A patent/CN105545989A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004144124A (en) * | 2002-10-22 | 2004-05-20 | Nsk Ltd | Actuator |
| CN101684847A (en) * | 2008-09-28 | 2010-03-31 | 陈伯恒 | Roller type mechanical brake |
| CN201925372U (en) * | 2010-12-11 | 2011-08-10 | 九江精密测试技术研究所 | Automatic locking mechanism for rotary shaft system |
| CN103637741A (en) * | 2013-11-12 | 2014-03-19 | 平湖普英特高层设备有限公司 | Overspeed anti-slip rail locker for window cleaning device |
| CN203852290U (en) * | 2014-05-21 | 2014-10-01 | 上海普英特高层设备有限公司 | Overrun brake, brake device, brake system and window cleaning machine |
| CN204878454U (en) * | 2015-08-31 | 2015-12-16 | 浙江瑞德森机械有限公司 | Auxiliary brake planetary reducer |
| CN205315560U (en) * | 2016-01-19 | 2016-06-15 | 平湖拓伟思自动化设备有限公司 | Face upward arm overspeed governor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116022681A (en) * | 2023-03-29 | 2023-04-28 | 德马科起重机械有限公司 | Stall self-locking device of crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101198537B (en) | Method and appliance for tripping the safety gear of an elevator | |
| CN110271936B (en) | Remote triggering reset mechanism of speed limiter | |
| CN201050558Y (en) | Braking and load-limiting coupler | |
| CN101311095A (en) | Velocity and acceleration monitoring device with electronically actuated servo-start for use in conveyor devices | |
| CN105485197A (en) | Torque limiter provided with elastic membrane coupling | |
| CN105545989A (en) | Rising arm speed governor | |
| CN205315560U (en) | Face upward arm overspeed governor | |
| CN103867457B (en) | Centrifugal-pump stopping safety protection method and device | |
| CN201891765U (en) | Centrifugal type controllable overrunning clutch | |
| CN103644218A (en) | Combined electronic mechanical brake | |
| CN105523498A (en) | Anti-stall device and crane | |
| CN203513019U (en) | Rotating stall protecting device | |
| CN108972108B (en) | Torque limiter for electric drill equipment for building | |
| CN212799169U (en) | Speed regulating device of automatic reset progressive overspeed-proof safety device | |
| CN205315539U (en) | Take torque limiter of flexible sheet shaft coupling | |
| CN105134387B (en) | Power control combines | |
| CN210001365U (en) | speed limiter | |
| CN202673557U (en) | Mechanical hydraulic overspeed protecting device for water turbine | |
| CN202905632U (en) | A brake-separating position-limiting adjusting mechanism | |
| CN103939490B (en) | A kind of electric gear roller box with protective gear | |
| CN203926478U (en) | A kind of electric gear roller box with protective gear | |
| CN203681579U (en) | Switching locking mechanism comprising adjustable friction damper | |
| CN205298314U (en) | Safety coupler | |
| CN203743018U (en) | Centrifugal pump stopping safety protection device | |
| CN220470511U (en) | Brake block mounting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |
|
| RJ01 | Rejection of invention patent application after publication |