Built-in planetary reducer of crane

Abstract

The utility model discloses a built-in planetary speed reducer of a crane, which relates to the technical field of speed reducers of cranes and comprises a shell, an oil pipe, a screwing cap, an oil storage cavity, a gear ring, a tooth groove, a through pipe, a plugging piece, a pressurizing pipe and a pressurizer. Lubricating oil can be guided into the oil storage cavity from the outside through the oil pipe to be stored by screwing off the screwing cap and opening the oil pipe, when oil is added, the booster works, the pressurizing pipe increases the pressure of the oil storage cavity, the pressure borne by the plugging piece in the through pipe is increased, the plugging piece is bent downwards to be opened, plugging of the through pipe is canceled, and the oil storage cavity is filled with lubricating oil. Lubricating oil in the oil storage cavity flows to the groove wall of the tooth groove through the through pipe, automatic lubrication can be carried out when the planet wheel makes contact with the tooth groove, and the lubricating oil can be transmitted to the sun wheel for lubrication replacement, in this way, oil adding maintenance can be carried out on all gears without dismounting the speed reducer, operation is simpler and more convenient, multiple times of lubrication adding can be used through one-time oil guiding, and the lubricating effect is better. More labor is saved, and the labor intensity is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of crane reducer, more specifically relates to a crane built-in planetary reducer. BACKGROUND

[0002] The drum device of the crane is an important component of the hoisting mechanism, and mainly comprises a drum body for winding the steel wire rope, a connecting device between the drum body and the reducer, a drum shaft and an end support seat. In the conventional crane, the drum shaft on one side of the drum body is connected to the output of the planetary reducer through a shaft coupling, and the planetary reducer is used to reduce the speed and increase the torque of the output shaft of the power motor, thereby improving the lifting capacity of the crane. However, the existing crane planetary reducer is manually maintained by adding lubricating oil, which is time-consuming and labor-intensive, increases the labor intensity of personnel, and requires a series of disassembly and assembly operations to access the internal gear, which is extremely inconvenient and inefficient. SUMMARY

[0003] Other features and advantages of the present utility model will be set forth in the following description of the utility model, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present utility model. The objects and other advantages of the present utility model can be realized and obtained by the structures specifically pointed out in the description and other accompanying drawings of the description.

[0004] The present utility model aims to overcome the above-mentioned shortcomings, and provides a crane built-in planetary reducer.

[0005] To achieve the above-mentioned purpose, the technical solution of the present utility model is as follows: a crane built-in planetary reducer, comprising: a shell, an oil pipe, a screw cap, an oil storage cavity, a gear ring, a gear slot, a through pipe, a plugging piece, a booster pipe and a booster, the oil pipe is installed on the upper side of the shell; the screw cap is connected with the oil pipe; the oil storage cavity is arranged in the shell and connected with the oil pipe; the gear ring is located in the shell and the outer ring is matched with the inner ring of the oil storage cavity; the gear slot is provided on the gear ring; the through pipe is provided in the gear ring and connected with the oil storage cavity on the upper side and connected with the gear slot on the lower side; the plugging piece is arranged in the through pipe in the form of a ring; the booster pipe is connected with the oil storage cavity; the booster is connected with the booster pipe.

[0006] Preferably, the plugging piece is made of a deformable material.

[0007] Preferably, the plugging piece is made of rubber.

[0008] Preferably, the plugging piece is fan-shaped.

[0009] Preferably, the shell is connected with a lifting ring.

[0010] The lower side of the shell is provided with a fixed mounting seat.

[0011] The shell is provided with a sun gear and a planet gear, the sun gear and the planet gear are engaged, and the sun gear and the gear groove are matched.

[0012] The utility model discloses the beneficial effect is as follows: the utility model discloses through unscrewing the screw cap, the oil pipe opens, and lubricating oil can be introduced to the oil storage cavity storage from the outside through the oil pipe, and when adding oil, through the booster work, and the booster pipe increases the air pressure of the oil storage cavity, makes the obturator piece in the through pipe increase under the pressure, and the obturator piece bends down and opens, cancels the obturation to the through pipe, makes the lubricating oil in the oil storage cavity flow to the groove wall of the gear groove through the through pipe, and the planet wheel contacts the gear groove and can automatically lubricate, and can also be transmitted to the sun gear lubrication, this mode not only can add oil maintenance to each gear without the dismounting of the speed reducer, and the operation is more simple, and the oil guide of once can use the lubrication addition of many times, more saves the manual work, and effectively reduces the labor intensity. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view of a crane built-in planetary reducer of the utility model;

[0014] Figure 2 It is a sectional structure schematic view of a crane built-in planetary reducer of the utility model;

[0015] Figure 3 It is a structure schematic view of a gear ring of the utility model;

[0016] Figure 4 It is the structure schematic view of the utility model Figure 3 A local enlarged structure schematic view of the utility model;

[0017] Figure 5 It is the structure schematic view of the utility model obturator piece in the static state;

[0018] Figure 6 It is the structure schematic view of the utility model obturator piece in the working state.

[0019] Fig. 1, oil pipe-2, screw cap-3, oil storage cavity-4, gear ring-5, gear groove-6, through pipe-7, obturator piece-8, booster pipe-9, booster-10, lifting ring-11, fixed mounting seat-12, sun gear-13, planet wheel-14. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-6 The utility model provides a built -in planetary reducer of crane, include: casing 1, oil pipe 2, screw cap 3, oil storage cavity 4, gear ring 5, tooth groove 6, through pipe 7, block piece 8, booster pipe 9, booster 10, oil pipe 2 installs on casing 1 upside, screw cap 3 is connected with oil pipe 2, oil storage cavity 4 is matched into casing 1 and is connected with oil pipe 2, gear ring 5 is located in casing 1 and outer ring and oil storage cavity 4 inner ring are pasted, tooth groove 6 is set up in gear ring 5, through pipe 7 is set up in gear ring 5 and upside is connected with oil storage cavity 4, downside is connected with tooth groove 6, block piece 8 is provided with several and is matched into through pipe 7 in annular form, booster pipe 9 is connected with oil storage cavity 4 and is connected with casing 1, booster 10 is connected with booster pipe 9.

[0023] In the use, the reducer is connected with the crane, and the output shaft is reduced by the cooperation of the sun gear 13, the planetary gear 14 and the gear ring 5. When the planetary gear in the reducer needs to be oiled, the screw cap 3 is unscrewed, the oil pipe 2 is opened, and the lubricating oil can be introduced into the oil storage cavity 4 from the outside through the oil pipe 2. When the oil is added, the booster 10 works, the booster pipe 9 increases the air pressure of the oil storage cavity 4, the block piece 8 in the through pipe 7 is pressed and increased, the block piece 8 is bent downward and opened, the through pipe 7 is unblocked, and the lubricating oil in the oil storage cavity 4 flows to the groove wall of the tooth groove 6 through the through pipe 7. The planetary gear 14 contacts the tooth groove 6 and can be automatically lubricated. The planetary gear 14 transmits to the sun gear 13.

[0024] According to some embodiments of the present application, the block piece 8 is made of a deformable material, and the block piece 8 is made of rubber. This material can effectively block the through pipe 7 when it is not deformed, and can open the through pipe 7 when it is deformed under pressure.

[0025] According to some embodiments of the present application, the blocking piece 8 is in the shape of a sector. A plurality of sector-shaped blocking pieces 8 are arranged in a ring shape to form a circle, and can block the passage of the tube 7.

[0026] According to some embodiments of the present application, a lifting ring 11 is connected to the housing 1. The lifting ring 11 can be used to lift the speed reducer.

[0027] According to some embodiments of the present application, a fixing seat 12 is arranged on the lower side of the housing 1. The fixing seat 12 can be used to fix the speed reducer.

[0028] According to some embodiments of the present application, a sun gear 13 and a planetary gear 14 are arranged in the housing 1. The sun gear 13 is engaged with the planetary gear 14, and the sun gear 13 is in clearance fit with the gear groove 6. The sun gear 13 and the planetary gear 14 can be used to reduce the speed.

[0029] It should be understood that the embodiments disclosed in the present application are not limited to the specific processing steps or materials disclosed herein, but should extend to such equivalent alternatives as understood by those skilled in the relevant art. It should also be understood that the terms used herein are for the purpose of describing specific embodiments only, and are not intended to be limiting.

[0030] The phrase "embodiments" in the specification means that the specific features, or characteristics described in connection with the embodiments are included in at least one embodiment of the present application. Therefore, the phrase "embodiments" or "embodiments" appearing in various places throughout the specification do not necessarily mean the same embodiment.

[0031] In addition, the described features or characteristics can be combined in one or more embodiments in any other suitable manner. In the above description, some specific details, such as thickness, number, etc., are provided to provide a comprehensive understanding of the embodiments of the present application. However, those skilled in the relevant art will understand that the present application can be implemented without the above one or more specific details or can be implemented using other methods, components, materials, etc.

Claims

1. An in-line planetary reducer for a crane, characterized by, The utility model relates to a kind of oil pressure booster, including: Shell (1); Oil pipe (2), which is installed on the upper side of shell (1); Screw cap (3), which is connected with oil pipe (2); Oil storage cavity (4), which is matched into shell (1) and connected with oil pipe (2); Gear ring (5), which is located in shell (1) and outer ring is attached with the inner ring of oil storage cavity (4); Gear slot (6), which is set on gear ring (5); Through pipe (7), which is set in gear ring (5) and upper side is connected with oil storage cavity (4), lower side is connected with gear slot (6); Sealing sheet (8), which is provided with several and matched into through pipe (7) in the form of ring; Pressure-increasing pipe (9), which is connected with pressure-increasing pipe (9) and connected with oil storage cavity (4); Pressure booster (10), which is connected with pressure-increasing pipe (9)。 2. A planetary reduction unit for an overhead crane according to claim 1, characterized in that Sealing sheet (8) is deformable material.

3. An in-line planetary gear unit for a crane according to claim 1 or 2, characterized in that Sealing sheet (8) is rubber material.

4. The planetary reducer built-in for crane according to claim 1, characterized in that, Sealing sheet (8) is fan-shaped.

5. The planetary speed reducer for an overhead crane according to claim 1, wherein Shell (1) is connected with lifting ring (11).

6. A planetary reduction unit for an overhead crane according to claim 1, wherein The lower side of shell (1) is provided with fixed mounting seat (12).

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