CN215626418U - Braking system for manually adjusting air pressure of winch - Google Patents
Braking system for manually adjusting air pressure of winch Download PDFInfo
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- CN215626418U CN215626418U CN202121104596.1U CN202121104596U CN215626418U CN 215626418 U CN215626418 U CN 215626418U CN 202121104596 U CN202121104596 U CN 202121104596U CN 215626418 U CN215626418 U CN 215626418U
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Abstract
The utility model discloses a braking system for manually adjusting air pressure of a winch, which comprises a foot-operated brake valve, a primary brake pump, a secondary brake pump, a primary brake clamp and a secondary brake clamp, wherein the foot-operated brake valve is arranged on the foot-operated brake pump; the primary brake clamp and the secondary brake clamp are arranged on a brake disc of the winch; the brake system comprises a first-stage brake pump, a second-stage brake pump, a foot-operated brake valve, a first-stage brake pump, a second-stage brake pump, a first air pressure regulating valve, a second air pressure regulating valve and a second air pressure regulating valve, wherein the first-stage brake pump drives the first-stage brake clamp to brake, the second-stage brake pump drives the second-stage brake clamp to brake, the foot-operated brake valve drives the first-stage brake pump and the second-stage brake pump to act, the pressure of a first-stage brake air source supplied to the first-stage brake pump is smaller than the pressure of a second-stage brake air source supplied to the second-stage brake pump, the first air pressure regulating valve is arranged on an air path of the first-stage brake air source, the second air pressure regulating valve is arranged on an air path of the second-stage brake air source, and the first air pressure regulating valve and the second air pressure regulating valve are arranged in a cab. The utility model can manually adjust the power of the winch according to the weight and the height of the rammer, realize multi-stage soft deceleration braking of the free falling of the rammer of the winch, and prevent the rope outlet length of the winch.
Description
Technical Field
The utility model relates to the field of machinery, in particular to a braking system for manually adjusting air pressure of a winch.
Background
The patent of prior art CN2019219465738 discloses "braking system and dynamic compactor are stepped on to hoist engine foot", through the second grade braking, realize the multistage soft deceleration braking of rammer free fall of hoist engine, its not enough lies in: when the dynamic compactor is operated in a non-unhooking mode, different weights and heights of the rammers need to be used, the braking force of the winch needs to be adjusted on site at any time, and appropriate pre-tightening force is applied to the steel wire rope, so that the phenomenon that after the rammers fall to the ground, the rope is too long due to too weak braking force, the phenomenon that the impact force is too large due to too strong braking force, the energy of the rammers is lost, and the machine is damaged is prevented.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides a braking system for manually adjusting air pressure of a winch, which can manually adjust the pressure of a primary braking air source and the pressure of a secondary braking air source respectively through a first air pressure adjusting valve and a second air pressure adjusting valve according to different weights and heights of a rammer, so that the power of the winch is suitable for different weights and heights of the rammer, multi-stage soft deceleration braking of free falling of the rammer of the winch is realized, and the rope outlet length of the winch is prevented.
On one hand, the utility model provides a braking system for manually adjusting air pressure of a winch, which comprises a foot-operated brake valve, a primary brake pump, a secondary brake pump, a primary brake clamp and a secondary brake clamp; the primary brake clamp and the secondary brake clamp are arranged on a brake disc of the winch; the first-stage brake pump drives the first-stage brake clamp to brake, the second-stage brake pump drives the second-stage brake clamp to brake, the foot-stepping brake valve drives the first-stage brake pump and the second-stage brake pump to act, and the pressure of a first-stage brake air source supplied to the first-stage brake pump is smaller than the pressure of a second-stage brake air source supplied by the second-stage brake pump; the air circuit of the first-stage braking air source is provided with a first air pressure regulating valve, the air circuit of the second-stage braking air source is provided with a second air pressure regulating valve, and the first air pressure regulating valve and the second air pressure regulating valve are installed in the cab.
Further, the device comprises a first pneumatic valve, a second pneumatic valve, a primary exhaust valve and a secondary exhaust valve; the air inlet of the first-stage brake pump is communicated with the air outlet of the first pneumatic valve, the first air outlet of the foot-operated brake valve is communicated with the air inlet of the first-stage exhaust valve, and the air outlet of the first-stage exhaust valve is communicated with the control port of the first pneumatic valve; the air inlet of the first pneumatic valve is connected with a primary braking air source;
the air inlet of the secondary brake pump is communicated with the air outlet of the second pneumatic valve, the second air outlet of the foot-operated brake valve is communicated with the air inlet of the secondary exhaust valve, and the air outlet of the secondary exhaust valve is communicated with the control port of the second pneumatic valve; an air inlet of the second pneumatic valve is connected with a secondary braking air source;
the first air inlet and the second air inlet of the foot brake valve are connected with a pilot control air source.
Furthermore, a first shuttle valve is arranged in a pipeline communicated with a first air outlet of the foot-operated brake valve and an air inlet of the first-stage exhaust valve, and a second shuttle valve is arranged in a pipeline communicated with a second air outlet of the foot-operated brake valve and an air inlet of the second-stage exhaust valve.
Further, the oil pump comprises an oil tank, an oil pump, a first one-way valve and a second one-way valve;
an oil outlet of the first one-way valve is connected with an oil inlet A of the primary braking clamp, and an oil inlet of the first one-way valve is connected with an oil inlet path; an oil outlet B of the primary brake clamp is connected with an oil outlet P of the primary brake pump, and an oil return port T of the primary brake pump is connected with an oil return path;
an oil outlet of the second one-way valve is connected with an oil inlet A of the secondary braking clamp, and an oil inlet of the second one-way valve is connected with an oil inlet path; an oil outlet B of the secondary brake clamp is connected with an oil outlet P of a secondary brake pump, and an oil return port T of the secondary brake pump is connected with an oil return path;
hydraulic oil in the oil tank sequentially passes through the oil pump to divide two hydraulic oil paths, and a first hydraulic oil path sequentially passes through the first one-way valve, the oil inlet A of the primary brake clamp, the oil outlet B of the primary brake clamp, the oil outlet P of the primary brake pump and the oil return port T of the primary brake pump to return to the oil tank to form heat dissipation circulation; and the second hydraulic oil way sequentially passes through the second one-way valve, the oil inlet A of the secondary brake clamp, the oil outlet B of the secondary brake clamp, the oil outlet P of the secondary brake pump and the oil return tank T of the oil return port T of the secondary brake pump to form heat dissipation circulation.
Compared with the prior art, the braking system for manually adjusting the air pressure of the winch has the beneficial effects that:
according to the utility model, the pressure of the primary braking air source and the pressure of the secondary braking air source can be respectively and manually adjusted through the first air pressure adjusting valve and the second air pressure adjusting valve according to different weights and heights of the rammers, so that the power of a winch mechanism is suitable for different weights and heights of the rammers, multi-stage soft deceleration braking of free falling of the rammers of the winch is realized, and the rope outlet length of the winch is prevented.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic structural view of a braking system for manually adjusting air pressure of a winch according to the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, the present invention provides a braking system for manually adjusting air pressure of a winch, which includes a foot-operated brake valve 100, a primary brake pump 108, a secondary brake pump 102, a primary brake clamp 105, and a secondary brake clamp 103; the primary braking clamp 105 and the secondary braking clamp 103 are arranged on a brake disc of the winch; the first-stage brake pump 108 drives the first-stage brake clamp 105 to brake, the second-stage brake pump 102 drives the second-stage brake clamp 103 to brake, the foot-operated brake valve 100 drives the first-stage brake pump 108 and the second-stage brake pump 102 to act, the pressure of a first-stage brake air source supplied to the first-stage brake pump 108 is smaller than that of a second-stage brake air source supplied to the second-stage brake pump 102, a first air pressure regulating valve 115 is arranged on an air path of the first-stage brake air source, a second air pressure regulating valve 116 is arranged on an air path of the second-stage brake air source, and the first air pressure regulating valve 115 and the second air pressure regulating valve 116 are installed in a cab.
The primary braking clamp 105 implements primary braking and the secondary braking clamp 103 implements secondary braking. The primary brake is supplied with air by a primary brake air source, and the secondary brake is supplied with air by a secondary brake air source. The pressure of the primary brake air supply and the secondary brake air supply are manually regulated by a first air pressure regulating valve 115 and a second air pressure regulating valve 116, respectively. The power of the winch mechanism is suitable for different weights and heights of the rammers according to different weights and heights of the rammers. Since the primary brake air supply pressure supplied to the primary brake pump 108 is less than the secondary brake air supply pressure supplied by the secondary brake pump 102. So that the braking force of the primary braking is smaller than that of the secondary braking. In the non-unhooking mode of the dynamic compaction machine, before the rammer is not grounded, namely the rammer freely falls to the front of a ramming pit, the primary braking clamp 105 performs primary braking on the winch, so that the speed reduction braking of the winch is realized, and the winch cannot be locked. When the ram lands, namely the ram freely falls to the ramming pit, the secondary braking clamp 103 performs secondary braking on the winch to lock the winch. The multi-stage soft deceleration braking of the free falling of the rammer of the winch is realized, and the rope outlet length of the winch is prevented.
As shown in fig. 1, the braking system for manually regulating the air pressure of the winch comprises a first pneumatic valve 114, a second pneumatic valve 113, a primary exhaust valve 109 and a secondary exhaust valve 101; the air inlet of the primary brake pump 108 is communicated with the air outlet of the first pneumatic valve 114, the first air outlet B1 of the foot brake valve 100 is communicated with the air inlet of the primary exhaust valve 109, and the air outlet of the primary exhaust valve 109 is communicated with the control port of the first pneumatic valve 114; the air inlet of the first pneumatic valve 114 is connected with a primary brake air source;
an air inlet of the secondary brake pump 102 is communicated with an air outlet of the second pneumatic valve 113, a second air outlet B2 of the foot brake valve 100 is communicated with an air inlet of the secondary exhaust valve 101, and an air outlet of the secondary exhaust valve 101 is communicated with a control port of the second pneumatic valve 113; the air inlet of the second pneumatic valve 113 is connected with a secondary brake air source;
the first air inlet A1 and the second air inlet A2 of the foot brake valve 100 are connected with a pilot control air source. A first shuttle valve 110 is arranged in a pipeline of the first air outlet B1 of the foot brake valve 100 communicated with the air inlet of the primary exhaust valve 109, and second shuttle valves 111 and 112 are arranged in a pipeline of the second air outlet B2 of the foot brake valve 100 communicated with the air inlet of the secondary exhaust valve 101.
When a driver steps on the brake valve, firstly, the primary brake is started, the pilot control air source enters from the first air inlet A1 of the foot-operated brake valve 100, is discharged from the first air outlet B1 of the foot-operated brake valve 100 and drives the first pneumatic valve 114 to be opened through the primary exhaust valve 109 and the control port of the first pneumatic valve 114, and the primary brake air source enters the primary brake pump 108 through the first pneumatic valve 114 and drives the primary brake clamp 105 to brake.
When the driver continues to step on the brake valve with the foot, the secondary brake is started, the pilot control air source enters from the second air inlet a2 of the foot-operated brake valve 100, is discharged from the second air outlet B2 of the foot-operated brake valve 100, passes through the secondary exhaust valve 101, and the control port of the second pneumatic valve 113 to drive the second pneumatic valve 113 to be opened, and enters the secondary brake pump 102 through the second pneumatic valve 113 to drive the secondary brake clamp 103 to brake.
As shown in fig. 1, the oil tank, the oil pump 107, the first check valve 106, and the second check valve 104;
an oil outlet of the first check valve 106 is connected with an oil inlet A of the primary braking clamp 105, and an oil inlet of the first check valve 106 is connected with an oil inlet path; an oil outlet B of the primary brake clamp 105 is connected with an oil outlet P of the primary brake pump 108, and an oil return port T of the primary brake pump 108 is connected with an oil return path;
an oil outlet of the second check valve 104 is connected with an oil inlet A of the secondary brake clamp 103, and an oil inlet of the second check valve 104 is connected with an oil inlet path; an oil outlet B of the secondary brake clamp 103 is connected with an oil outlet P of the secondary brake pump 102, and an oil return port T of the secondary brake pump 102 is connected with an oil return path;
hydraulic oil in the oil tank sequentially passes through the oil pump 107 to be divided into two hydraulic oil paths, and the first hydraulic oil path sequentially passes through the first one-way valve 106, the oil inlet A of the primary brake clamp 105, the oil outlet B of the primary brake clamp 105, the oil outlet P of the primary brake pump 108 and the oil return tank T of the primary brake pump 108 to form heat dissipation circulation; the second hydraulic oil path sequentially passes through the second check valve 104, the oil inlet A of the secondary brake clamp 103, the oil outlet B of the secondary brake clamp 103, the oil outlet P of the secondary brake pump 102 and the oil return tank T of the oil return port T of the secondary brake pump 102 to form heat dissipation circulation.
Under the condition that the first-stage braking clamp 105 and the second-stage braking clamp 103 are not braked, the first hydraulic oil path and the second hydraulic oil path are both heat dissipation circulating oil paths, heat dissipation is carried out through an oil tank heat dissipation system, the braking heat dissipation effect is good, and the braking performance is improved.
The techniques not described above are common general knowledge of the skilled person. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. A braking system for manually adjusting air pressure of a winch comprises a foot-operated brake valve (100), a primary brake pump (108), a secondary brake pump (102), a primary brake clamp (105) and a secondary brake clamp (103); the primary brake clamp (105) and the secondary brake clamp (103) are arranged on a brake disc of the winch; the primary brake pump (108) drives a primary brake clamp (105) to brake, the secondary brake pump (102) drives a secondary brake clamp (103) to brake, the foot-stepping brake valve (100) drives the primary brake pump (108) and the secondary brake pump (102) to act, and the pressure of a primary brake air source supplied to the primary brake pump (108) is smaller than the pressure of a secondary brake air source supplied by the secondary brake pump (102); the air circuit of the primary braking air source is provided with a first air pressure regulating valve (115), the air circuit of the secondary braking air source is provided with a second air pressure regulating valve (116), and the first air pressure regulating valve (115) and the second air pressure regulating valve (116) are installed in a cab.
2. The braking system for manual regulation of air pressure in winches of claim 1, comprising a first pneumatic valve (114), a second pneumatic valve (113), a primary exhaust valve (109), a secondary exhaust valve (101); an air inlet of the primary brake pump (108) is communicated with an air outlet of the first pneumatic valve (114), a first air outlet (B1) of the foot-operated brake valve (100) is communicated with an air inlet of the primary exhaust valve (109), and an air outlet of the primary exhaust valve (109) is communicated with a control port of the first pneumatic valve (114); the air inlet of the first pneumatic valve (114) is connected with a primary brake air source;
an air inlet of the secondary brake pump (102) is communicated with an air outlet of the second pneumatic valve (113), a second air outlet (B2) of the foot-operated brake valve (100) is communicated with an air inlet of the secondary exhaust valve (101), and an air outlet of the secondary exhaust valve (101) is communicated with a control port of the second pneumatic valve (113); an air inlet of the second pneumatic valve (113) is connected with a secondary braking air source;
the first air inlet (A1) and the second air inlet (A2) of the foot brake valve (100) are connected with a pilot control air source.
3. The hoist manual air pressure adjusting brake system as claimed in claim 2, wherein a first shuttle valve (110) is provided in a pipe where the first outlet port (B1) of the foot brake valve (100) communicates with the inlet port of the primary exhaust valve (109), and a second shuttle valve (111, 112) is provided in a pipe where the second outlet port (B2) of the foot brake valve (100) communicates with the inlet port of the secondary exhaust valve (101).
4. The braking system for manually adjusting air pressure of a winch according to claim 3, comprising an oil tank, an oil pump (107), a first check valve (106), a second check valve (104);
an oil outlet of the first check valve (106) is connected with an oil inlet A of the primary braking clamp (105), and an oil inlet of the first check valve (106) is connected with an oil inlet path; an oil outlet B of the primary brake clamp (105) is connected with an oil outlet P of a primary brake pump (108), and an oil return port T of the primary brake pump (108) is connected with an oil return path;
an oil outlet of the second check valve (104) is connected with an oil inlet A of the secondary braking clamp (103), and an oil inlet of the second check valve (104) is connected with an oil inlet path; an oil outlet B of the secondary brake clamp (103) is connected with an oil outlet P of the secondary brake pump (102), and an oil return port T of the secondary brake pump (102) is connected with an oil return path;
hydraulic oil in the oil tank sequentially passes through the oil pump (107) to be divided into two hydraulic oil paths, and the first hydraulic oil path sequentially passes through the first one-way valve (106), an oil inlet A of the primary brake clamp (105), an oil outlet B of the primary brake clamp (105), an oil outlet P of the primary brake pump (108) and an oil return port T of the primary brake pump (108) to return to an oil tank to form heat dissipation circulation; and the second hydraulic oil path sequentially passes through a second one-way valve (104), an oil inlet A of the secondary brake clamp (103), an oil outlet B of the secondary brake clamp (103), an oil outlet P of the secondary brake pump (102) and an oil return port T of the secondary brake pump (102) to form heat dissipation circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121104596.1U CN215626418U (en) | 2021-05-22 | 2021-05-22 | Braking system for manually adjusting air pressure of winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121104596.1U CN215626418U (en) | 2021-05-22 | 2021-05-22 | Braking system for manually adjusting air pressure of winch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215626418U true CN215626418U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121104596.1U Active CN215626418U (en) | 2021-05-22 | 2021-05-22 | Braking system for manually adjusting air pressure of winch |
Country Status (1)
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|---|---|
| CN (1) | CN215626418U (en) |
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2021
- 2021-05-22 CN CN202121104596.1U patent/CN215626418U/en active Active
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Effective date of registration: 20230425 Address after: No. 38 Qilin Road, High tech Industrial Park, Hanshou County, Changde City, Hunan Province, 415900 Patentee after: Hunan Jiuhu Intelligent Technology Co.,Ltd. Address before: 410604 South America Road, Xingwang village, xiaduopu Town, Ningxiang County, Changsha City, Hunan Province Patentee before: HUNAN BOBANG HEAVY INDUSTRY Co.,Ltd. |