Hand-cranking portable automatic planet locking lifting device
By designing a hand-crank portable automatic planet locking and lifting device, using the automatic planet locking mechanism and forward and reverse direction valve, the problems of damage, safety hazards and poor stability of mining lifting devices in the eye cutting are solved, and the problems of damage, safety hazards and poor stability of the transport and lifting equipment are achieved. More efficient and safe equipment lifting and coal transportation.
Patent Information
- Application Number
- CN202421109800.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When transporting, lifting and replacing equipment in the eye cutting, existing mining lifting devices have problems such as high equipment damage rate, low safety factor, severe wear of scraper conveyors, poor transportation stability and limited lifting distance of hand-pulled hoist.
A hand-crank portable automatic planet locking and lifting device is designed, including a support frame, a roller, an automatic planet locking mechanism and a forward and reverse conversion valve. It is lifted through a wire rope, with automatic planet locking and forward and reverse conversion functions, reducing manual Operational requirements.
It extends the service life of scrapers and chains, reduces the labor intensity of construction workers, reduces potential safety hazards, improves the stability and flexibility of lifting, and avoids the problems of slack chain and blockage of the bottom chain groove of the scraper conveyor. More efficient coal transportation is achieved.
Smart Images
Figure CN222331422U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a mining hoisting device, in particular to a hand-cranked portable automatic planetary locking hoisting device. Background Art
[0002] At present, the damage rate of accessories such as hydraulic support jacks, scraper conveyor troughs, and coal mining machine travel wheels in the fully mechanized mining face is high and needs to be replaced frequently. Due to the limitation of the mining space in the fully mechanized mining face, it is difficult to transport, lift, and replace various types of equipment in the cut, and the safety factor is low. After the working face takes safety measures, the scraper conveyor and hand winch are used to realize the transportation, lifting, and replacement of the above equipment in the cut. The current implementation plan has the following disadvantages: (1) The use of scraper conveyor for transportation mainly relies on the dragging effect of the scraper and chain. Long-term use will wear the scraper trough, scraper and chain, and even break the scraper and chain, causing additional equipment damage and reducing its service life. (2) Frequent use of scraper conveyor for transportation will reduce the slackness of the chain and scraper, reduce the amount of coal transported, and increase the amount of returned coal, causing the scraper conveyor bottom chain trough to be blocked. (3) The use of scraper conveyor for transportation lacks special fixing devices, and the equipment stability is low during transportation, which is a potential safety hazard. (4) During the lifting process, the lifting distance of the hand chain hoist has certain limitations, and it is necessary to frequently change the hanging position or increase the number of hand chain hoists. The hand chain hoist operates slowly, and the construction workers have a lot of labor. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a hand-cranked portable automatic planetary locking lifting device with reasonable design, convenient operation, labor saving and time saving.
[0004] The technical solution of the utility model is:
[0005] A hand-cranked portable automatic planetary locking lifting device comprises a support frame and a drum, wherein the wheel axles on both sides of the drum are rotatably connected to the two fixed plates on the support frame respectively, the wheel axle on one side of the drum is connected to one end of the rotating shaft through a connecting bearing, the middle part of the rotating shaft is rotatably connected to the third fixed plate on the support frame, the other end of the rotating shaft is connected to the output end of the automatic planetary locking mechanism, the input end of the automatic planetary locking mechanism is connected to a hand wheel, a forward and reverse switching valve is provided on the automatic planetary locking mechanism, which can make the drum forward or reverse; a steel wire rope is wound on the drum, one end of the steel wire rope is connected to the drum, and the other end of the steel wire rope can be connected to the lifting equipment.
[0006] Furthermore: a base is provided at the lower end of the support frame, and through holes are provided at intervals on the base, which can be connected to the fixing member by bolts.
[0007] Furthermore: the base is perpendicular to the bottom surface of the support frame; the handwheel is a crank type structure, or a disc type structure.
[0008] The beneficial effects of the utility model are:
[0009] 1. The utility model can reduce the wear of the scraper groove, scraper and chain when put into use on site, avoid the scraper and chain from being broken, reduce the amount of damage to the equipment, and extend its service life.
[0010] 2. The utility model eliminates potential safety hazards in transportation and lifting, reduces the number of lifting tools invested, and reduces the labor intensity of construction workers.
[0011] 3. The utility model includes an automatic planetary locking mechanism and a forward and reverse switching valve. The automatic planetary locking mechanism can prevent accidents caused by the reversal of the drum during the lifting of heavy objects, and is actually a safety barrier for the device; the forward and reverse switching valve controls the forward and reverse rotation of the drum to realize the lifting and rope loosening functions of the device.
[0012] 4. The overall weight of the utility model is about 30kg, which is relatively light and easy to move. On-site construction personnel can flexibly adjust the device according to the actual lifting height or distance on site.
[0013] 5. The utility model has a simple structure, is relatively light, has obvious practical effects on site, can be easily accepted by construction personnel, avoids the problem of loosening of the scraper conveyor chain and scraper due to frequent use, reduces the amount of coal transported, and increases the amount of returned coal, which ultimately causes the blockage of the bottom chain groove of the scraper conveyor. It has good economic benefits after promotion. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The schematic diagram is a structural diagram of a hand-cranked portable automatic planetary locking lifting device. DETAILED DESCRIPTION
[0015] Example: See Figure 1 , In the figure, 1-hand wheel, 2-forward and reverse switching valve, 3-automatic planetary locking mechanism, 4-connecting bearing, 5-lifting equipment, 6-wire rope, 7-drum, 8-support frame.
[0016] A hand-cranked portable automatic planetary locking lifting device comprises a support frame 8 and a drum 7, wherein the wheel axles on both sides of the drum 7 are rotatably connected to the two fixed plates on the support frame 8 respectively, wherein: the wheel axle on one side of the drum 7 is connected to one end of the rotating shaft through a connecting bearing 4, the middle part of the rotating shaft is rotatably connected to the third fixed plate on the support frame 8, the other end of the rotating shaft is connected to the output end of the automatic planetary locking mechanism 3, the input end of the automatic planetary locking mechanism 3 is connected to the hand wheel 1, and a forward and reverse switching valve 2 is provided on the automatic planetary locking mechanism 3, which can make the drum 7 forward or reverse; a steel wire rope 6 is wound around the drum 7, one end of the steel wire rope 6 is connected to the drum 7, and the other end of the steel wire rope 6 can be connected to the lifting equipment 5.
[0017] Preferred solution: A base is provided at the lower end of the support frame 8, through holes are provided at intervals on the base, and can be connected to the fixing member by bolts. The base is perpendicular to the bottom surface of the support frame 8; the hand wheel 1 is a crank structure, or a disc structure.
[0018] When in use, the steel wire rope specification is Φ12.5×50000mm as required, with a hook at the end and a number of guide pulleys. They are selected according to the actual lifting distance and reserved for backup, and are also equipped with fixing bolts, etc.
[0019] The utility model can be used as a tool for transporting and lifting small equipment or accessories at working faces, upper and lower drifts, and gob-side lanes, and can realize vertical lifting and horizontal transportation. Before lifting the equipment, the device is fixed to a relatively stable position such as a scraper conveyor, a hydraulic support, or a lane top plate. Then, according to the actual situation on site, the guide pulley is used to hang the hook head on the equipment to be lifted and fixed firmly, and the object can be lifted by shaking the hand wheel.
[0020] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification made according to the technical essence of the utility model still falls within the scope of the technical solution of the utility model.
Claims
1. A hand-cranked portable automatic planetary locking lifting device, comprising a support frame and a drum, wherein the axles on both sides of the drum are rotatably connected to two fixed plates on the support frame, and wherein: The wheel axle on one side of the drum is connected to one end of the rotating shaft through a connecting bearing, the middle part of the rotating shaft is rotatably connected to the third fixed plate on the support frame, the other end of the rotating shaft is connected to the output end of the automatic planetary locking mechanism, the input end of the automatic planetary locking mechanism is connected to the hand wheel, and the automatic planetary locking mechanism is provided with a forward and reverse switching valve, which can make the drum forward or reverse; a wire rope is wound on the drum, one end of the wire rope is connected to the drum, and the other end of the wire rope can be connected to the lifting equipment.
2. A hand-operated portable automatic planetary locking lifting device according to claim 1, characterized in that: A base is provided at the lower end of the support frame, and through holes are provided at intervals on the base, which can be connected to the fixing member by bolts.
3. A hand-operated portable automatic planetary locking lifting device according to claim 2, characterized in that: The base is perpendicular to the bottom surface of the support frame; the hand wheel is a crank type structure or a disc type structure.