CN113104711A - Braking type elevator for unfavorable geological construction - Google Patents
Braking type elevator for unfavorable geological construction Download PDFInfo
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- CN113104711A CN113104711A CN202110292385.3A CN202110292385A CN113104711A CN 113104711 A CN113104711 A CN 113104711A CN 202110292385 A CN202110292385 A CN 202110292385A CN 113104711 A CN113104711 A CN 113104711A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B15/00—Main component parts of mining-hoist winding devices
- B66B15/08—Driving gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
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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
- F16N—LUBRICATING
- F16N25/00—Distributing equipment with or without proportioning devices
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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
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
- F16N7/385—Central lubrication systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
A braking type hoisting machine for unfavorable geological construction comprises: the device comprises a motor, a speed reducer, a lubricating station, a lifting cylinder module, a safety rope and a braking device; the braking device comprises a bracket, a sliding sleeve, an oil cylinder, a belleville spring, a lining ring, a light-transmitting cover, an upper cover, a braking friction plate and a hexagon bolt; the brake friction plate is connected to the lower piston, the butterfly spring abuts against the top of the lower piston and the lining ring, and the upper piston can move in the oil cylinder.
Description
Technical Field
The invention relates to the field of unfavorable geological construction, in particular to a brake type elevator for unfavorable geological construction.
Background
In projects such as tunnels and drinking water, unfavorable geological construction conditions such as steep longitudinal slopes and large height difference of inclined shafts of tunnels sometimes occur. The optional construction transportation scheme comprises rail transportation of the mining hoister, a concrete conveying system and the like, and has the advantages of low transportation efficiency, high operation and maintenance difficulty, high construction interference and high cost. Optimizing the inclined shaft transportation scheme, reasonably selecting main equipment and strengthening the site operation and maintenance organization, and is the foundation for ensuring the construction progress of the main tunnel. The synchronous organization of inclined shaft transportation and main hole construction is a key point; through optimization, selection and comparison, a transportation organization scheme of 'trackless main tunnel and rail inclined shaft' is adopted in the construction stage of the main tunnel. After the working face of the main tunnel is blasted, a wheel loader is used for loading slag, a dump truck is used for quickly transferring the slag to a temporary slag unloading bin at the bottom of the inclined shaft, and drilling, blasting, excavating, slag discharging and transporting, primary support circulating operation and quick tunneling are implemented. The 'inclined shaft track' adopts a double-drum single-rope winding type hoisting machine to draw a side dumping type mine car for transportation, a four-track double-line track is arranged, and the ascending of a heavy car and the descending of an empty car are synchronously carried out. The double-drum hoister rail transportation system has limited hourly transportation volume, can run uninterruptedly in all weather theoretically, and can continuously run to discharge slag when drilling, blasting, excavating and primary supporting processes are carried out on a main tunnel working face. The synchronous organization of inclined shaft transportation and main hole construction is a key link for ensuring the construction progress of the main hole.
The prior art has the following problems and disadvantages in solving the above problems:
1. the prior art inclined shaft lifting device comprises a lubricating station for lubricating a speed reducer, however, the construction of a tunnel corresponds to a large-size speed reducer, so that the large-size speed reducer also needs to use a large-flow valve for controlling fluid to enter and return oil, the multi-way valve for entering and returning oil generally adopts a slide valve block or plunger block type multi-way valve, however, the multi-way valve has the characteristics of small valve opening and small flow, and the multi-way valve needs to be manufactured in a large size, occupies a large space and increases the cost.
2. The inclined shaft lifting device lubricating station in the prior art comprises an oil inlet and oil return oil way, however, due to lubrication consumption, oil return flow is smaller than oil inlet flow, and when the inclined shaft lifting device is turned off, oil return is delayed, and flexible control cannot be achieved.
3. The oil return circuit in the prior art is easy to trigger backflow, but the conventional multi-way valve is lack of a backflow prevention method.
4. The multi-way valve in the prior art has no effective flow regulation mode aiming at the flow regulation requirement, although the size of the through-flow opening is controlled, the method is not generally used in the multi-way valve, because the multi-way valve controls a plurality of channels, the intervals among the channels are strictly corresponding, the opening regulation of one channel means that the through-flow of other channels is influenced, and therefore, no good mode for independently regulating the flow of the multi-way valve exists.
5. The prior art lubrication system does not provide a backup source of oil in the event of an emergency, such as a delivery pump failure, and the separate provision of an accumulator is costly.
6. The multi-way valve in the prior art has a variable internal structure, such as multiple layers of steps, and is actually a very complicated processing and mounting process.
Disclosure of Invention
In order to overcome the above problems, the present invention proposes a solution to solve the above problems simultaneously.
The technical scheme adopted by the invention for solving the technical problems is as follows: a braking hoist for unfavorable geological construction, unfavorable geological construction is inclined shaft construction, braking hoist includes: the device comprises a motor, a speed reducer, a lubricating station, a lifting cylinder module, a safety rope, a braking device, a hydraulic station and an operating platform; the motor is connected with the speed reducing device through a coupler, the lubricating station provides lubricating oil for the speed reducing device, and the output end of the speed reducing device is connected with the lifting cylinder module; the safety rope is installed on the lifting cylinder module, the brake device can brake the rotation of the lifting cylinder module, the hydraulic station provides oil for the brake device, and the operating platform controls the hydraulic station and the lubricating station to convey liquid and controls the motor to drive; a multi-way valve control oil way is arranged in the lubricating station;
the braking device comprises a bracket, a sliding sleeve, an oil cylinder, a belleville spring, a lining ring, a light-transmitting cover, an upper cover, a braking friction plate, a hexagon bolt and a piston; the sliding sleeve is accommodated in the support, the lining ring is arranged above the sliding sleeve, the oil cylinder is arranged above the lining ring, the light-transmitting cover is arranged above the oil cylinder, the upper cover is arranged above the light-transmitting cover, the piston comprises an upper piston and a lower piston, the hexagonal bolt penetrates through the upper piston and is connected to the lower piston, the brake friction plate is connected to the lower piston, the butterfly spring is propped between the lower piston and the lining ring, and the upper piston can move in the oil cylinder;
the multi-way valve includes: the device comprises a driving device, a valve body, an oil storage shell, a plug board and a piston; the valve body is internally provided with an oil inlet, an oil return outlet, a left valve wall, a middle valve wall, a small flow cavity, a middle valve block and a right valve wall; the plug board comprises an oil inlet hole, an oil return hole, a first valve board part, a second valve board part and a lifting board; an oil storage containing cavity and the piston are arranged in the oil storage containing shell; the height of the piston is smaller than that of the oil storage cavity, and a gap is formed between the upper end of the piston and the inner wall of the oil storage shell;
the left valve wall, the middle valve block and the right valve wall of the valve body are sequentially installed from left to right and are connected with the valve body, an oil inlet and an oil return outlet are formed in the upper portion of the valve body, and an oil inlet and an oil return inlet are formed in the lower portion of the valve body; a first upper flow hole and a first lower flow hole are formed in the left valve wall, and a second upper flow hole and a second lower flow hole are formed in the middle valve wall; the small flow cavity is arranged between the middle valve wall and the middle valve block;
the driving device is installed on the right valve wall, the oil storage shell is installed on the left side of the left valve wall, the driving device drives the inserting plate to move, and the piston is arranged at the left end of the inserting plate; the inserting plate sequentially comprises a first valve plate part, an oil inlet, a second valve plate part and an oil return hole from left to right, and the right side of the second valve plate part is detachably connected with the lifting plate; the first upper flow holes and the first lower flow holes are not symmetrical about the plugboard, and the second upper flow holes and the second lower flow holes are not symmetrical about the plugboard; the width of the oil inlet is larger than that of the oil return outlet, and the width of the oil return hole is larger than that of the oil return inlet;
in a valve opening state, the oil inlet hole and the oil inlet outlet form a passage, the oil return inlet, the oil return hole and the oil return outlet form a passage, and the second valve plate part cuts off the small flow cavity;
in a small-flow through state, the first valve plate part seals a through-flow path between the oil inlet and the oil outlet, oil entering the oil inlet enters the small-flow cavity through the second upper flow hole and reaches the oil inlet through the second lower flow hole, the oil entering the oil inlet enters the placement oil storage cavity through the first upper flow hole and reaches the oil inlet through the first lower flow hole, and at the moment, the lifting plate is located at the position corresponding to the oil return inlet and the oil return outlet, and the oil returned lifts the lifting plate to return oil;
in a closed state, the piston blocks the first upper flow hole and the first lower flow hole; the first valve plate part cuts off the small flow cavity, and the second valve plate part cuts off a through flow path between the oil return inlet and the oil return outlet.
Further, the lifting plate is connected to the second valve plate portion through a hinge.
Further, the height difference between the upper end of the piston and the upper end of the oil containing cavity is larger than one half of the height difference between the upper surface of the first valve plate part and the upper end of the oil containing cavity.
Further, the first lower flow orifice is located at the lower end of the left valve wall.
Furthermore, the left valve wall, the middle valve block and the right valve wall can be penetrated by the inserting plate.
Further, the oil inlet is connected to the oil inlet pipe through an adapter.
Further, the driving device is a piston cylinder.
Furthermore, a third valve plate part is arranged on the right side of the oil return hole.
Further, the third valve plate portion is connected with an output shaft of the piston cylinder.
Further, the distance between the first upper flow hole and the upper surface of the inserting plate is smaller than the distance between the first upper flow hole and the upper end of the oil storage cavity.
The invention has the beneficial effects that:
1. aiming at the 1 st point of the background technology, a slide valve is adopted in a lubricating system, the improvement is carried out, the characteristic of large flux of the slide valve is utilized, a multi-channel structure is designed, and simultaneously, the large flux, the multi-channel and the compact volume are ensured.
2. To the 2 nd point of the background art, the size of the designed oil inlet channel is larger than that of the oil return channel, meanwhile, to the problem that oil return is delayed, the design size of an oil return hole on the valve plate is larger than that of an oil return opening on the valve body, when the oil inlet is closed through the movement of the valve plate, the oil return opening is not closed, and the small-flow oil inlet at the moment can still meet the requirement of lubrication ending.
3. Aiming at the 3 rd point of the background technology, a lifting plate is designed in an oil return hole on a valve plate, and the lifting plate can be lifted and recovered in a single direction and cannot move downwards in a reverse direction.
4. Aiming at the 4 th point of the background technology, an additional small-flow channel is arranged, so that small-flow through flow can be realized when an inlet is closed, the flow velocity is slow and the backflow is easy to realize under the state of small flow, and therefore, the lifting plate is positioned at a corresponding position.
5. To the 5 th point of the background art, an oil storage shell is arranged on the left side of the valve body and used for arranging the piston, and temporary oil storage is realized through switching from the opening state to the closing state.
6. Against the 6 th point of the background art, the installation is easier to process by a plurality of detachable structures in the valve body, such as a multi-plate structure in the valve body, for example, the detachable installation of a lifting plate.
Note: the foregoing designs are not sequential, each of which provides a distinct and significant advance in the present invention over the prior art.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a top view of a lifting device of the present invention
FIG. 2 is a front view of the lifting device of the present invention
FIG. 3 is a diagram of the open state of the fluid control device of the present invention
FIG. 4 is a low flow state diagram of the fluid control device of the present invention
FIG. 5 is a close-up view of the fluid control device of the present invention
FIG. 6 is a cross-sectional view of the braking device of the present invention
FIG. 7 is a cross-sectional view of the braking device of the present invention
FIG. 8 is an overall view of the braking apparatus of the present invention
In the figures, the reference numerals are as follows:
1. the device comprises a motor 2, a speed reducer 3, a lubrication station 4, a lifting cylinder module 5, a safety rope 6, a brake device 7, a hydraulic station 8, an operation table 9, a driving device 10, a valve body 11, a placement oil storage shell 12, an insertion plate 13, a piston 14, an oil inlet 15, an oil outlet 16, an oil return inlet 17, an oil return outlet 18, an oil inlet hole 19, an oil return hole 20, a left valve wall 21, a middle valve wall 22, a small flow cavity 23, a middle valve block 24, a first valve plate portion 25, a second valve plate portion 26, a first upper flow hole 27, a first lower flow hole 28, a second upper flow hole 29, a second lower flow hole 30, a lifting plate 31, a placement oil storage cavity 32, a right valve wall 33, a bracket 34, a key 35, a fixing screw ring 36, an inner hexagonal screw 37, a spring washer 38, an adjusting screw ring 39, a light-transmitting cover 40, an inner hexagonal screw 41, a spring washer 42, a piston 43, an upper cover 44, a hexagonal screw 45, a spring, The brake device comprises an oil cylinder 47, a sliding sleeve 48, a belleville spring 49, lining rings 50-54, a sealing ring 55, a taper joint 56, a slotted cylinder head screw 57, a gasket 58, a pressure plate 59, a bolt 60, a spring washer 61, a brake friction plate 62 and an inner hexagon cylinder head screw
Detailed Description
As shown in the figure: a braking hoist for unfavorable geological construction, unfavorable geological construction is inclined shaft construction, braking hoist includes: the device comprises a motor, a speed reducer, a lubricating station, a lifting cylinder module, a safety rope, a braking device, a hydraulic station and an operating platform; the motor is connected with the speed reducing device through a coupler, the lubricating station provides lubricating oil for the speed reducing device, and the output end of the speed reducing device is connected with the lifting cylinder module; the safety rope is installed on the lifting cylinder module, the brake device can brake the rotation of the lifting cylinder module, the hydraulic station provides oil for the brake device, and the operating platform controls the hydraulic station and the lubricating station to convey liquid and controls the motor to drive; a multi-way valve control oil way is arranged in the lubricating station;
the braking device comprises a bracket, a sliding sleeve, an oil cylinder, a belleville spring, a lining ring, a light-transmitting cover, an upper cover, a braking friction plate, a hexagon bolt and a piston; the sliding sleeve is accommodated in the support, the lining ring is arranged above the sliding sleeve, the oil cylinder is arranged above the lining ring, the light-transmitting cover is arranged above the oil cylinder, the upper cover is arranged above the light-transmitting cover, the piston comprises an upper piston and a lower piston, the hexagonal bolt penetrates through the upper piston and is connected to the lower piston, the brake friction plate is connected to the lower piston, the butterfly spring is propped between the lower piston and the lining ring, and the upper piston can move in the oil cylinder;
the multi-way valve includes: the device comprises a driving device, a valve body, an oil storage shell, a plug board and a piston; the valve body is internally provided with an oil inlet, an oil return outlet, a left valve wall, a middle valve wall, a small flow cavity, a middle valve block and a right valve wall; the plug board comprises an oil inlet hole, an oil return hole, a first valve board part, a second valve board part and a lifting board; an oil storage containing cavity and the piston are arranged in the oil storage containing shell; the height of the piston is smaller than that of the oil storage cavity, and a gap is formed between the upper end of the piston and the inner wall of the oil storage shell;
the left valve wall, the middle valve block and the right valve wall of the valve body are sequentially installed from left to right and are connected with the valve body, an oil inlet and an oil return outlet are formed in the upper portion of the valve body, and an oil inlet and an oil return inlet are formed in the lower portion of the valve body; a first upper flow hole and a first lower flow hole are formed in the left valve wall, and a second upper flow hole and a second lower flow hole are formed in the middle valve wall; the small flow cavity is arranged between the middle valve wall and the middle valve block;
the driving device is installed on the right valve wall, the oil storage shell is installed on the left side of the left valve wall, the driving device drives the inserting plate to move, and the piston is arranged at the left end of the inserting plate; the inserting plate sequentially comprises a first valve plate part, an oil inlet, a second valve plate part and an oil return hole from left to right, and the right side of the second valve plate part is detachably connected with the lifting plate; the first upper flow holes and the first lower flow holes are not symmetrical about the plugboard, and the second upper flow holes and the second lower flow holes are not symmetrical about the plugboard; the width of the oil inlet is larger than that of the oil return outlet, and the width of the oil return hole is larger than that of the oil return inlet;
as shown in the figure: in a valve opening state, the oil inlet hole and the oil inlet outlet form a passage, the oil return inlet, the oil return hole and the oil return outlet form a passage, and the second valve plate part cuts off the small flow cavity;
in a small-flow through state, the first valve plate part seals a through-flow path between the oil inlet and the oil outlet, oil entering the oil inlet enters the small-flow cavity through the second upper flow hole and reaches the oil inlet through the second lower flow hole, the oil entering the oil inlet enters the placement oil storage cavity through the first upper flow hole and reaches the oil inlet through the first lower flow hole, and at the moment, the lifting plate is located at the position corresponding to the oil return inlet and the oil return outlet, and the oil returned lifts the lifting plate to return oil;
in a closed state, the piston blocks the first upper flow hole and the first lower flow hole; the first valve plate part cuts off the small flow cavity, and the second valve plate part cuts off a through flow path between the oil return inlet and the oil return outlet.
As shown in the figure: the lifting plate is connected to the second valve plate portion through a hinge. The height difference between the upper end of the piston and the upper end of the oil storage cavity is greater than one half of the height difference between the upper surface of the first valve plate part and the upper end of the oil storage cavity. The first lower flow orifice is located at the lower end of the left valve wall. The left valve wall, the middle valve block and the right valve wall can be penetrated by the inserting plate. The oil inlet is connected to the oil inlet pipe through an adapter. The driving device is a piston cylinder. And a third valve plate part is arranged on the right side of the oil return hole. And the third valve plate part is connected with an output shaft of the piston cylinder. The distance between the first upper flow hole and the upper surface of the inserting plate is smaller than the distance between the first upper flow hole and the upper end of the oil storage cavity.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A braking formula lifting machine for unfavorable geological construction, unfavorable geological construction is the inclined shaft construction, its characterized in that, braking formula lifting machine includes: the device comprises a motor, a speed reducer, a lubricating station, a lifting cylinder module, a safety rope, a braking device, a hydraulic station and an operating platform; the motor is connected with the speed reducing device through a coupler, the lubricating station provides lubricating oil for the speed reducing device, and the output end of the speed reducing device is connected with the lifting cylinder module; the safety rope is installed on the lifting cylinder module, the brake device can brake the rotation of the lifting cylinder module, the hydraulic station provides oil for the brake device, and the operating platform controls the hydraulic station and the lubricating station to convey liquid and controls the motor to drive; a multi-way valve control oil way is arranged in the lubricating station;
the braking device comprises a bracket, a sliding sleeve, an oil cylinder, a belleville spring, a lining ring, a light-transmitting cover, an upper cover, a braking friction plate, a hexagon bolt and a piston; the sliding sleeve is accommodated in the support, the lining ring is arranged above the sliding sleeve, the oil cylinder is arranged above the lining ring, the light-transmitting cover is arranged above the oil cylinder, the upper cover is arranged above the light-transmitting cover, the piston comprises an upper piston and a lower piston, the hexagonal bolt penetrates through the upper piston and is connected to the lower piston, the brake friction plate is connected to the lower piston, the butterfly spring is propped between the lower piston and the lining ring, and the upper piston can move in the oil cylinder;
the multi-way valve includes: the device comprises a driving device, a valve body, an oil storage shell, a plug board and a piston; the valve body is internally provided with an oil inlet, an oil return outlet, a left valve wall, a middle valve wall, a small flow cavity, a middle valve block and a right valve wall; the plug board comprises an oil inlet hole, an oil return hole, a first valve board part, a second valve board part and a lifting board; an oil storage containing cavity and the piston are arranged in the oil storage containing shell; the height of the piston is smaller than that of the oil storage cavity, and a gap is formed between the upper end of the piston and the inner wall of the oil storage shell;
the left valve wall, the middle valve block and the right valve wall are sequentially installed from left to right and are connected with the valve body, an oil inlet and an oil return outlet are formed in the upper portion of the valve body, and an oil inlet and an oil return inlet are formed in the lower portion of the valve body; a first upper flow hole and a first lower flow hole are formed in the left valve wall, and a second upper flow hole and a second lower flow hole are formed in the middle valve wall; the small flow cavity is arranged between the middle valve wall and the middle valve block;
the driving device is installed on the right valve wall, the oil storage shell is installed on the left side of the left valve wall, the driving device drives the inserting plate to move, and the piston is arranged at the left end of the inserting plate; the inserting plate sequentially comprises a first valve plate part, an oil inlet, a second valve plate part and an oil return hole from left to right, and the right side of the second valve plate part is detachably connected with the lifting plate; the first upper flow holes and the first lower flow holes are not symmetrical about the plugboard, and the second upper flow holes and the second lower flow holes are not symmetrical about the plugboard; the width of the oil inlet is larger than that of the oil return outlet, and the width of the oil return hole is larger than that of the oil return inlet;
in a valve opening state, the oil inlet hole and the oil inlet outlet form a passage, the oil return inlet, the oil return hole and the oil return outlet form a passage, and the second valve plate part cuts off the small flow cavity;
in a small-flow through state, the first valve plate part seals a through-flow path between the oil inlet and the oil outlet, oil entering the oil inlet enters the small-flow cavity through the second upper flow hole and reaches the oil inlet through the second lower flow hole, the oil entering the oil inlet enters the placement oil storage cavity through the first upper flow hole and reaches the oil inlet through the first lower flow hole, and at the moment, the lifting plate is located at the position corresponding to the oil return inlet and the oil return outlet, and the oil returned lifts the lifting plate to return oil;
in a closed state, the piston blocks the first upper flow hole and the first lower flow hole; the first valve plate part cuts off the small flow cavity, and the second valve plate part cuts off a through flow path between the oil return inlet and the oil return outlet.
2. The brake type hoisting machine for unfavorable geological construction of claim 1, characterized in that: the lifting plate is connected to the second valve plate portion through a hinge.
3. The brake type hoisting machine for unfavorable geological construction of claim 1, characterized in that: the height difference between the upper end of the piston and the upper end of the oil storage cavity is greater than one half of the height difference between the upper surface of the first valve plate part and the upper end of the oil storage cavity.
4. The brake type hoisting machine for unfavorable geological construction of claim 1, characterized in that: the first lower flow orifice is located at the lower end of the left valve wall.
5. The brake type hoisting machine for unfavorable geological construction of claim 1, characterized in that: the left valve wall, the middle valve block and the right valve wall can be penetrated by the inserting plate.
6. The brake type hoisting machine for unfavorable geological construction of claim 1, characterized in that: the oil inlet is connected to the oil inlet pipe through an adapter.
7. The brake type hoisting machine for unfavorable geological construction of claim 1, characterized in that: the driving device is a piston cylinder.
8. The brake type hoist for unfavorable geological construction of claim 7, characterized in that: and a third valve plate part is arranged on the right side of the oil return hole.
9. The brake type hoist for unfavorable geological construction of claim 8, characterized in that: and the third valve plate part is connected with an output shaft of the piston cylinder.
10. The brake type hoisting machine for unfavorable geological construction of claim 1, characterized in that: the distance between the first upper flow hole and the upper surface of the inserting plate is smaller than the distance between the first upper flow hole and the upper end of the oil storage cavity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110292385.3A CN113104711B (en) | 2021-03-18 | 2021-03-18 | Braking type elevator for unfavorable geological construction |
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| CN202110292385.3A CN113104711B (en) | 2021-03-18 | 2021-03-18 | Braking type elevator for unfavorable geological construction |
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| CN113104711B CN113104711B (en) | 2022-09-16 |
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| CN110131394A (en) * | 2019-04-19 | 2019-08-16 | 浙江大行科技有限公司 | A kind of speed changing box lubricating system flow control valve |
| CN110608361A (en) * | 2019-10-30 | 2019-12-24 | 北京道一技术开发有限公司 | Barrel insertion type oil cylinder plunger pump, automatic mine lubricating system and using method thereof |
| CN211449701U (en) * | 2019-12-03 | 2020-09-08 | 福建农林大学 | Labyrinth type sealing leakage-proof gate valve |
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| CN113104711B (en) | 2022-09-16 |
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