Rotary speed reducer for truck-mounted crane

Abstract

The utility model relates to the technical field of rotary speed reducers, and provides a rotary speed reducer for a truck-mounted crane, which comprises a rotary speed reducer main body, a plurality of heat dissipation frames are arranged outside the rotary speed reducer main body, the inner walls of the heat dissipation frames are glued with semiconductor chilling plates, and the outer walls of the semiconductor chilling plates are attached to the outer wall of the rotary speed reducer main body; according to the rotary speed reducer for the truck-mounted crane, the semiconductor chilling plate is powered on, rapid heat exchange can be conducted through the heat dissipation frame, the semiconductor chilling plate and the heat dissipation fan, heat in the protective cover can be rapidly extracted out through the exhaust fan, the semiconductor chilling plate can be shielded through the protective cover, and the protection effect is achieved; rainwater is prevented from making contact with the semiconductor chilling plate to damage the semiconductor chilling plate, the heat dissipation frame can be rapidly installed on the rotary speed reducer body through the magnet and the elastic belt, meanwhile, the heat dissipation frame can be rapidly sleeved with the protective cover through the limiting frame, convenience is provided, and the installation difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotary speed reducer technical field, specifically, relate to a rotary speed reducer for truck crane. BACKGROUND

[0002] The truck crane, the formal name is truck crane, is a kind of equipment to realize the lifting, rotation, hoisting of goods by hydraulic lifting and telescopic system, it is widely used in municipal construction, coal mine engineering, landscaping and other infrastructure materials and other equipment hoisting and transportation, wherein the rotation function is completed by rotary speed reducer.

[0003] Through the search, prior art (announcement number:CN221943161U) a rotary speed reducer, wherein "including shell, the shell is equipped with heat dissipation device, the heat dissipation device is driven by transmission device, the transmission device is installed on connecting device, the connecting device is connected with preliminary speed reducer on one side, the other end of connecting device is connected with no. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a rotary speed reducer for truck crane, solve the problem that only heat dissipation hole and heat dissipation fan are used for heat dissipation in the use process in the related art, and the heat dissipation effect is limited, and the rotary speed reducer cannot be quickly cooled.

[0005] The technical scheme of the utility model is as follows:

[0006] A rotary speed reducer for truck crane, including rotary speed reducer main part, the outside of rotary speed reducer main part is equipped with a plurality of heat dissipation frame, and the inner wall of heat dissipation frame is glued with semiconductor refrigeration piece, the outer wall of semiconductor refrigeration piece is combined with the outer wall of rotary speed reducer main part, the outer wall of rotary speed reducer main part is all welded with magnet around, and the magnet is magnetically connected with the outer wall of rotary speed reducer main part, the outer wall of heat dissipation frame is screwed with heat dissipation fan, a pair of elastic belts are screwed between adjacent two heat dissipation frames, the outside of rotary speed reducer main part is equipped with protective cover, and the protective cover is located at the outside of heat dissipation frame, the outer wall of the side of protective cover is welded with suction pipe, and the suction pipe is communicated with protective cover, the other end of suction pipe is inserted with exhaust fan, the top of both sides of protective cover is welded with limit frame, and the top of one end of limit frame is clamped with the top of rotary speed reducer main part and fixed, the bottom of protective cover is screwed with sealing membrane.

[0007] Preferably, the heat dissipation frame is arranged in a circular array, each pair of the elastic bands is arranged in a vertical direction, and the elastic bands are made of polyurethane material.

[0008] Preferably, the limiting frame is in L shape, the protective cover and the limiting frame are made of stainless steel material, and the thickness of the protective cover is 2 mm.

[0009] Preferably, the sealing film is made of silicone rubber material, and the inner contour of the sealing film is fitted with the outer contour of the rotary speed reducer body.

[0010] Preferably, the dustproof plate is hinged to the air outlet end of the air extractor, the dustproof plate is made of PP plastic, and the dustproof plate can be turned by 90 degrees.

[0011] Preferably, the bottom of the rotary speed reducer body is provided with a plurality of bolts which are installed by threads, the top of the rotary speed reducer body is provided with a glue inlet pipe, and the bottom of the rotary speed reducer body is provided with a glue outlet pipe.

[0012] Preferably, the top of the glue inlet pipe is welded with an internally threaded pipe, one side of the internally threaded pipe is screwed with a spring, the other end of the spring is welded with a threaded cap, and the other end of the glue outlet pipe is inserted with a plug.

[0013] Preferably, the plug is made of butyl rubber material.

[0014] The utility model discloses the beneficial effect that:

[0015] By the semiconductor refrigeration piece power on, utilize heat dissipation frame, semiconductor refrigeration piece and radiating fan can carry out quick heat exchange, utilize air extractor to can the heat in the protective cover is extracted quickly, utilize the protective cover can the semiconductor refrigeration piece is shielded, plays the protection function, avoids the rain and the semiconductor refrigeration piece contact, causes the semiconductor refrigeration piece damage, through magnet and elastic band can the heat dissipation frame is quickly installed on the rotary speed reducer body, simultaneously, utilize the limiting frame to can the protective cover is quickly set up in the outside of heat dissipation frame, provided the convenience, reduced the installation difficulty, this mode can realize quick heat exchange, is favorable to improve the cooling speed. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model discloses make further detailed explanation to the utility model in combination with the drawings and specific embodiment.

[0017] Figure 1 It is the whole isometric view of the utility model;

[0018] Figure 2 It is the internal structure schematic view of the utility model;

[0019] Figure 3 It is the whole structure schematic view of the utility model;

[0020] Figure 4 The bottom structure is a schematic view.

[0021] In the figure: 1, rotary speed reducer main body; 2, heat dissipation frame; 3, semiconductor refrigeration piece; 4, magnet; 5, heat dissipation fan; 6, elastic belt; 7, protective cover; 8, suction pipe; 9, air extractor; 10, limiting frame; 11, sealing film; 12, dustproof plate; 13, bolt; 14, glue inlet pipe; 15, glue outlet pipe; 16, internal thread pipe; 17, spring; 18, threaded cap; 19, plug. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the present application.

[0023] For example, Figures 1-4As shown, the embodiment proposes a rotary reducer for truck-mounted cranes, comprising a rotary reducer body 1, a plurality of heat dissipation racks 2 are arranged outside the rotary reducer body 1, and a plurality of semiconductor refrigerating fins 3 are glued to the inner walls of the heat dissipation racks 2, the outer walls of the semiconductor refrigerating fins 3 are attached to the outer walls of the rotary reducer body 1, a plurality of magnets 4 are welded around the outer walls of the rotary reducer body 1, and the magnets 4 are magnetically connected to the outer walls of the rotary reducer body 1, a plurality of heat dissipation fans 5 are screwed to the outer walls of the heat dissipation racks 2, a pair of elastic belts 6 are screwed between every two adjacent heat dissipation racks 2, a protective cover 7 is arranged outside the rotary reducer body 1, and the protective cover 7 is located outside the heat dissipation racks 2, an air extraction pipe 8 is welded to one side of the outer wall of the protective cover 7, and the air extraction pipe 8 is in communication with the protective cover 7, an air extractor 9 is inserted into the other end of the air extraction pipe 8, a limiting rack 10 is welded to the top of the protective cover 7 on both sides, and one end of the limiting rack 10 is clamped and fixed to the top of the rotary reducer body 1, a sealing film 11 is screwed to the bottom of the protective cover 7, the heat dissipation racks 2 are arranged in a circular array at equal distances, every pair of elastic belts 6 are arranged in a vertical direction, the elastic belts 6 are made of polyurethane material, the limiting rack 10 is L-shaped, the protective cover 7 and the limiting rack 10 are made of stainless steel material, the thickness of the protective cover 7 is 2mm, the sealing film 11 is made of silicone rubber material, and the inner contour of the sealing film 11 is attached to the outer contour of the rotary reducer body 1, a dustproof plate 12 is hinged to the air outlet end of the air extractor 9, and the dustproof plate 12 is made of PP plastic, the turning angle of the dustproof plate 12 is 90 degrees, the dustproof plate 12 can shield the air outlet end of the air extractor 9 when the air extractor 9 is not started, so as to avoid foreign matters from entering and causing the air extractor 9 to be blocked, thereby ensuring the air outlet effect of the air extractor 9, the PP plastic material is relatively light, and can be lifted by airflow when the air extractor 9 is blowing, a plurality of bolts 13 are installed at equal distances on the bottom of the rotary reducer body 1 through threads, an adhesive feeding pipe 14 is arranged on the top of the rotary reducer body 1, and an adhesive discharging pipe 15 is arranged on the bottom of the rotary reducer body 1, the rotary reducer body 1 can be connected with a vehicle through the bolts 13, the adhesive feeding pipe 14 can be used to add lubricating oil into the rotary reducer body 1, the adhesive discharging pipe 15 can be used to discharge the lubricating oil in the rotary reducer body 1, an internally threaded pipe 16 is welded to the top of the adhesive feeding pipe 14, a spring 17 is screwed to one side of the internally threaded pipe 16, a threaded cap 18 is welded to the other end of the spring 17, a plug 19 is inserted into the other end of the adhesive discharging pipe 15, the adhesive feeding pipe 14 can be sealed by being connected with the threaded cap 18 and the internally threaded pipe 16, and the adhesive discharging pipe 15 can be sealed by inserting the plug 19 into it, and the plug 19 is made of butadiene rubber material.

[0024] The rotary speed reducer body 1, the semiconductor refrigeration piece 3, the heat dissipation fan 5 and the air extractor 9 used in the embodiment are all mature technologies, when used, the rotary speed reducer body 1 can be connected with the vehicle through the bolt 13, the remaining lubricating oil in the rotary speed reducer body 1 is discharged by pulling out the plug 19, after the discharge, the plug 19 is plugged back, new lubricating oil is added into the rotary speed reducer body 1 through the glue inlet pipe 14, the glue inlet pipe 14 can be sealed by connecting the screw cap 18 with the internal thread pipe 16, the semiconductor refrigeration piece 3 is electrified, heat exchange is realized by the heat dissipation frame 2, the semiconductor refrigeration piece 3 and the heat dissipation fan 5, the heat in the protective cover 7 is extracted by the air extractor 9, the semiconductor refrigeration piece 3 is shielded by the protective cover 7, the protection effect is realized, the semiconductor refrigeration piece 3 is prevented from being damaged by the contact with the rainwater, the air outlet end of the air extractor 9 is shielded by the dustproof plate 12 when the air extractor 9 is not started, foreign matters are prevented from entering to cause the blockage of the air extractor 9, and the air outlet effect of the air extractor 9 is ensured.

[0025] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A slewing reduction gear for a truck crane, comprising a slewing reduction gear body (1), characterized in that, The outside of the rotary speed reducer body (1) is provided with a plurality of heat dissipation racks (2), and the inner wall of the heat dissipation rack (2) is glued with a semiconductor refrigeration sheet (3), the outer wall of the semiconductor refrigeration sheet (3) is attached to the outer wall of the rotary speed reducer body (1), the outer wall of the rotary speed reducer body (1) is welded with a magnet (4) around, and the magnet (4) is magnetically connected with the outer wall of the rotary speed reducer body (1), the outer wall of the heat dissipation rack (2) is screwed with a heat dissipation fan (5), a pair of elastic belts (6) are screwed between every two adjacent heat dissipation racks (2), the outside of the rotary speed reducer body (1) is sleeved with a protective cover (7), and the protective cover (7) is located outside the heat dissipation rack (2), one side of the outer wall of the protective cover (7) is welded with an air exhaust pipe (8), and the air exhaust pipe (8) is in communication with the protective cover (7), one end of the air exhaust pipe (8) is inserted with an air exhaust fan (9), the top of the protective cover (7) is welded with a limiting rack (10) on both sides, and the top of one end of the limiting rack (10) is clamped and fixed with the top of the rotary speed reducer body (1), and the bottom of the protective cover (7) is screwed with a sealing film (11).

2. The slewing reducer for a truck-mounted crane according to claim 1, characterized in that The heat dissipation racks (2) are arranged in a circular array at equal distances, each pair of elastic belts (6) is arranged in a vertical direction, and the elastic belts (6) are made of polyurethane material.

3. The slewing reduction machine for a truck-mounted crane according to claim 1, characterized in that, The limiting rack (10) is L-shaped, the protective cover (7) and the limiting rack (10) are made of stainless steel material, and the thickness of the protective cover (7) is 2mm.

4. The slewing reduction gear for a truck-mounted crane according to claim 1, characterized in that The sealing film (11) is made of silicone rubber material, and the inner contour of the sealing film (11) is attached to the outer contour of the rotary speed reducer body (1).

5. The slewing reduction gear for a truck-mounted crane according to claim 1, characterized in that The air exhaust end of the air exhaust fan (9) is hinged with a dustproof plate (12), and the dustproof plate (12) is made of PP plastic, and the dustproof plate (12) can be turned by 90 degrees.

6. The slewing reduction machine for a truck-mounted crane according to claim 1, characterized in that, A plurality of bolts (13) are installed at equal distances on the bottom of the rotary speed reducer body (1) through threads, the top of the rotary speed reducer body (1) is provided with a glue inlet pipe (14), and the bottom of the rotary speed reducer body (1) is provided with a glue outlet pipe (15).

7. The slewing reduction gear for a truck-mounted crane according to claim 6, characterized in that The top of the glue inlet pipe (14) is welded with an internally threaded pipe (16), one side of the internally threaded pipe (16) is screwed with a spring (17), the other end of the spring (17) is welded with a threaded cap (18), and the other end of the glue outlet pipe (15) is inserted with a plug (19).

8. The slewing reduction machine for a truck-mounted crane according to claim 7, characterized in that The plug (19) is made of butadiene rubber material.

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