阅读说明：本技术 冷却用齿轮箱结构 (Gear box structure for cooling ) 是由 王德申 李荃 *** 李苏东 蔡志明 于 2019-10-30 设计创作，主要内容包括：本申请公开了一种冷却用齿轮箱结构,涉及冷却用齿轮箱结构的技术领域,以解决现有技术中的散热能力差的技术问题。本申请的冷却用齿轮箱结构包括箱壳本体、第一冷却腔体以及第二冷却腔体,所述箱壳本体上具有供轴穿过的内孔,以及与所述内孔相通的空腔；所述第一冷却腔体设于所述箱壳本体内,且位于所述内孔处；所述第二冷却腔体设于所述箱壳本体内,且位于所述空腔处。故本申请可以通过第一冷却腔体降低输入轴承和一级轮系在使用中的环境温度,通过第二冷却腔体降低一级轮系和二级轮系在使用中的环境温度,从而增大了散热面积,提高了散热能力,提高了齿轮箱的承载能力,可使整个齿轮箱的使用温度达到一个良性的状态。(The application discloses gear box structure for cooling relates to the technical field of gear box structure for cooling to solve the poor technical problem of heat dissipation ability among the prior art. The gear box structure for cooling comprises a box shell body, a first cooling cavity and a second cooling cavity, wherein an inner hole for a shaft to pass through and a cavity communicated with the inner hole are formed in the box shell body; the first cooling cavity is arranged in the box shell body and is positioned at the inner hole; the second cooling cavity is arranged in the box shell body and is positioned at the cavity. Therefore, the temperature of the environment where the input bearing and the primary gear train are in use can be reduced through the first cooling cavity, the temperature of the environment where the primary gear train and the secondary gear train are in use is reduced through the second cooling cavity, the heat dissipation area is increased, the heat dissipation capacity is improved, the bearing capacity of the gear box is improved, and the service temperature of the whole gear box can reach a benign state.)

1. A cooling gearbox structure, comprising:

the box shell body is provided with an inner hole for a shaft to pass through and a cavity communicated with the inner hole;

the first cooling cavity is arranged in the box shell body and is positioned at the inner hole; and

and the second cooling cavity is arranged in the box shell body and is positioned at the cavity.

2. The cooling gearbox structure according to claim 1, wherein a second annular groove is formed in an inner wall of the cavity, and a ring gear for closing the second groove is provided in the cavity;

the outer wall of the gear ring is abutted to the inner wall of the cavity, and the gear ring is matched with the second groove to form the second cooling cavity.

3. The cooling gearbox structure according to claim 2, wherein a contact portion between the inner wall of the cavity and the ring gear is provided with a second seal ring.

4. The cooling gearbox structure as recited in claim 1, wherein a second water inlet and a second water outlet communicating with said second cooling chamber are provided on said case body; wherein the second water inlet is positioned below the second water outlet.

5. The cooling gearbox arrangement as recited in claim 4, wherein said second water inlet comprises:

the water inlet channel is formed in one side face of the box shell body, one end of the water inlet channel is detachably connected with a first water inlet plug, and the other end of the water inlet channel is communicated with the second cooling cavity; and

the two inlets are formed in the bottom of the box shell body and communicated with the water inlet channel, and a second water inlet plug is detachably connected to the two inlets;

the second water outlet includes:

the water outlet channel is arranged on one side surface of the box shell body, one end of the water outlet channel is detachably connected with a first water outlet plug, and the other end of the water outlet channel is communicated with the second cooling cavity; and

and the two outlets are arranged on the top of the box shell body and communicated with the water outlet channel, and the two outlets are detachably connected with a second water outlet plug.

6. The cooling gearbox structure according to claim 4, wherein a drain hole communicating with the second cooling chamber is provided in the case body, and a drain plug is detachably connected to the drain hole, wherein the drain hole is located below the second water outlet.

7. The cooling gearbox structure according to any one of claims 1 to 6,

a circular first groove is formed in one side face of the box shell body, and a cover plate used for closing the first groove is arranged on the box shell body in a covering mode;

wherein the cover plate and the first groove are matched to form the first cooling cavity.

8. The cooling gearbox arrangement of claim 7, wherein the first cooling cavity has fins disposed on an inner surface thereof, the fins having a first end and a second end, the first end being coupled to the inner surface of the first cooling cavity and the second end being spaced from the inner surface of the first cooling cavity;

the mounting positions of the first ends of the two adjacent radiating fins are staggered in the circumferential direction of the first cooling cavity.

9. The cooling gearbox structure as recited in claim 7, wherein a first seal ring is provided at a contact portion of said cover plate with said casing body.

10. The cooling gearbox structure as recited in claim 7, wherein a first water inlet and a first water outlet are provided on said case body in communication with said first cooling cavity; wherein the first water inlet is positioned below the first water outlet.

Technical Field

The application relates to the technical field of gear boxes, in particular to a gear box structure for cooling.

Background

The shield gear box is one of the important parts for driving the shield machine. The shield tunneling machine has the functions of transmitting power, increasing torque, driving the front-end cutter head, enabling the shield tunneling machine to excavate earth, gravel and the like in front of the shield tunneling machine while advancing, and then conveying the earth, gravel and the like out of a tunnel through other equipment, and is closed in working environment and bad in heat dissipation condition.

Disclosure of Invention

The application aims to provide a gear box structure for cooling to solve the technical problem that heat dissipation capacity is poor in the prior art.

The above technical problem of the present application is mainly solved by the following technical solutions:

a gear box structure for cooling comprises a box shell body, a first cooling cavity and a second cooling cavity, wherein an inner hole for a shaft to pass through and a cavity communicated with the inner hole are formed in the box shell body; the first cooling cavity is arranged in the box shell body and is located at the inner hole, and the second cooling cavity is arranged in the box shell body and is located at the cavity.

In one embodiment, a circular second groove is formed in the inner wall of the cavity, and a gear ring for sealing the second groove is arranged on the cavity; the outer wall of the gear ring is abutted to the inner wall of the cavity, and the gear ring is matched with the second groove to form the second cooling cavity.

In one embodiment, a second sealing ring is arranged at a contact part of the inner wall of the cavity and the gear ring.

In one embodiment, a second water inlet and a second water outlet which are communicated with the second cooling cavity are formed in the box shell body; wherein the second water inlet is positioned below the second water outlet.

In one embodiment, the second water inlet comprises a water inlet channel and two inlets, the water inlet channel is arranged on one side surface of the box shell body, one end of the water inlet channel is detachably connected with the first water inlet plug, and the other end of the water inlet channel is communicated to the second cooling cavity; the two inlets are formed in the bottom of the box shell body and communicated with the water inlet channel, and the two inlets are detachably connected with second water inlet plugs.

In one embodiment, the second water outlet comprises a water outlet channel and two outlets, the water outlet channel is arranged on one side surface of the box shell body, one end of the water outlet channel is detachably connected with a first water outlet plug, and the other end of the water outlet channel is communicated to the second cooling cavity; the two outlets are arranged on the top of the box shell body and communicated with the water outlet channel, and the two outlets are detachably connected with second water outlet plugs.

In an embodiment, a drain hole communicated with the second cooling cavity is formed in the case shell body, and a plug is detachably connected in the drain hole, wherein the drain hole is located below the second water outlet.

In one embodiment, a circular first groove is formed in one side face of the box shell body, and a cover plate for closing the first groove is covered on the box shell body; wherein the cover plate and the first groove are matched to form the first cooling cavity.

In one embodiment, the inner surface of the first cooling cavity is provided with a cooling fin, the cooling fin has a first end and a second end, the first end is connected to the inner surface of the first cooling cavity, and the second end is arranged at a distance from the inner surface of the first cooling cavity; the mounting positions of the first ends of the two adjacent radiating fins are staggered in the circumferential direction of the first cooling cavity.

In one embodiment, a first sealing ring is arranged at a contact part of the cover plate and the box shell body.

In one embodiment, the box shell body is provided with a first water inlet and a first water outlet which are communicated with the first cooling cavity; wherein the first water inlet is positioned below the first water outlet.

Compared with the prior art, the beneficial effect of this application is: this application can reduce the ambient temperature of input bearing and one-level train in use through first cooling cavity, reduces the ambient temperature of one-level train and second grade train in use through second cooling cavity to increased heat radiating area, improved heat-sinking capability, improved the bearing capacity of gear box, can make the service temperature of whole gear box reach a benign state.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural view of a cooling gearbox according to an embodiment of the present application;

FIG. 2 is a side view of a cooling gearbox configuration according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram illustrating a cooling gearbox configuration according to an embodiment of the present application;

fig. 4 is a schematic structural view of a cooling gearbox according to an embodiment of the present application.

Icon: 100-gearbox structure for cooling; 1-a cabinet body; 1 a-a first side; 1 b-a first top; 1 c-a first bottom; 11-inner bore; 12-a cavity; 2-a first cooling cavity; 21-a first groove; 22-a cover plate; 23-a first sealing ring; 24-a heat sink; 24 a-a first end; 24 b-a second end; 25-a first water inlet; 26-a first water outlet; 3-a second cooling cavity; 31-a second groove; 32-a gear ring; 321-a ring gear bolt; 322-third groove; 33-a second sealing ring; 34-a second water inlet; 341-water inlet channel; 342-an inlet; 343-a first water inlet plug; 344-second water inlet plug; 35-a second water outlet; 351-water outlet channel; 352-an outlet; 353-a first water outlet plug; 354-second water outlet plug; 36-a drain hole; 361-a drain plug; 4-input bearing; 5-an input shaft; 6-first-order wheel train; 7-two-stage wheel train.

Detailed Description

The terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of indicating or implying relative importance, and do not denote any order or order.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application.

In the description of the present application, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

The technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 1, a structural diagram of a cooling gearbox structure 100 according to an embodiment of the present application is shown. The cooling gearbox structure 100 includes a case body 1, a first cooling cavity 2, and a second cooling cavity 3.

The cabinet body 1 has a first face 1a, a first top 1b and a first bottom 1c, the first top 1b is directed toward the first bottom 1c, defined as a downward direction, and the side of the first face 1a is defined as a right side. Case shell body 1 can be the cuboid structure, also can be the cylinder structure, and when case shell body 1 was the cylinder structure, this cylinder structure's a terminal surface was first face 1a, and first top 1b and first bottom 1c all are located the lateral wall of this cylinder structure.

The first surface 1a of the box shell body 1 is provided with an inner hole 11 for a shaft to pass through and a cavity 12 communicated with the inner hole 11; the first cooling cavity 2 is arranged in the box shell body 1, the second cooling cavity 3 is arranged in the inner hole 11 and is arranged in the box shell body 1, and the second cooling cavity is arranged in the cavity 12.

In one embodiment, the cooling gearbox arrangement 100 may be used in a shield tunneling machine; install input bearing 4 and input shaft 5 in the hole 11, input shaft 5 passes through input bearing 4 to be installed in hole 11, be equipped with one-level train 6 in the cavity 12, second grade train 7 and ring gear 32, 6 covers of one-level train are established on input shaft 5, second grade train 7 is connected with 6 transmissions of one-level train, ring gear 32 is connected promptly with 7 transmissions of second grade train, ring gear 32 and case shell body 1 can link together through ring gear bolt 321 with dismantling.

This application can reduce the ambient temperature of input bearing 4 and 6 in use of one-level train through first cooling cavity 2, reduces the ambient temperature of one-level train 6 and 7 in use of second grade train through second cooling cavity 3 to increased heat radiating area, improved heat-sinking capability, improved the bearing capacity of gear box, can make the service temperature of whole gear box reach a benign state.

In one embodiment, the present cooling gearbox configuration 100 may be verified or analytically designed by finite element thermal field analysis.

Referring to FIG. 2, a side view of a cooling gearbox assembly 100 according to an embodiment of the present application is shown. A second water inlet 34 and a second water outlet 35 which are communicated with the second cooling cavity 3 are arranged on the box shell body 1; wherein, the second water inlet 34 is positioned below the second water outlet 35, that is, the second water inlet 34 is positioned at the first bottom 1c of the box shell body 1; the second water outlet 35 is located at the first top 1b of the cabinet body 1.

A first water inlet 25 and a first water outlet 26 which are communicated with the first cooling cavity 2 are arranged on the box shell body 1; wherein the first water inlet 25 is located below the first water outlet 26. Namely, the first water inlet 25 is positioned at the first bottom 1c of the box shell body 1; the first water outlet 26 is located at the first top 1b of the cabinet body 1.

The first cooling cavity 2 is a circular ring-shaped cavity, the inner surface of the first cooling cavity 2 is provided with a radiating fin 24, the radiating fin 24 is provided with a first end 24a and a second end 24b, the first end 24a is connected to the inner surface of the first cooling cavity 2, and the second end 24b is arranged at an interval with the inner surface of the first cooling cavity 2; the mounting positions of the first ends 24a of the adjacent two fins 24 are staggered in the circumferential direction of the first cooling cavity 2.

The cooling fins 24 divide the first cooling cavity 2 into circuitous cooling water channels, which not only increases the heat dissipation area, but also prevents the formation of closed small chambers by leaving a gap between the second ends 24b of the cooling fins 24 and the inner surface of the first cooling cavity 2, thereby avoiding the reduction of heat dissipation efficiency.

In an operation process, at first water inlet 25 and first delivery port 26 installation condenser tube, first water inlet 25 links to each other with a water pump, and the water pump makes recirculated cooling water get into from the first water inlet 25 of below for the liquid level of first cooling chamber 2 rises naturally, has fully contacted effectual heat radiating area, until flowing out from first delivery port 26, makes recirculated cooling water in the first cooling chamber 2 can take away the heat that input bearing 4 and one-level train 6 in use produced, reaches the cooling effect.

At second water inlet 34 and second delivery port 35 installation condenser tube, second water inlet 34 links to each other with a water pump, and the water pump makes recirculated cooling water get into from the second water inlet 34 of below for the liquid level of second cooling chamber 3 rises naturally, has fully contacted effectual heat radiating area, until flowing out from second delivery port 35, makes recirculated cooling water in the second cooling chamber 3 can take away the heat that second grade train 7 and the 6 in use of one-level train take away, reaches the cooling effect.

Wherein the pressure of the circulating cooling water can reach 1MPa at the maximum. The temperature difference between the inlet water and the outlet water of the circulating cooling water is generally about 10K (temperature rise). The temperature of the lubricating oil in the case shell body 1 can be reduced in the circulating process of the circulating cooling water. The circulating cooling water can control the temperature of lubricating oil in the circulating process, effectively reduces failure risks such as pitting corrosion and the like, prolongs the service life of the input bearing 4, and prolongs the service life of the whole gear box of the shield tunneling machine.

In an operation process, the first cooling cavity 2 or the second cooling cavity 3 can be independently used according to the requirements of different use working conditions, so that the energy consumption is reduced, the energy waste is avoided, and the environment is protected. The first cooling cavity 2 or the second cooling cavity 3 can be selected to be used together according to needs, so that the heat dissipation efficiency is improved, and the cooling effect is improved.

Please refer to fig. 3, which is a schematic structural diagram of a cooling gearbox structure 100 according to an embodiment of the present application. A first annular groove 21 is formed in the first surface 1a of the box shell body 1, and a cover plate 22 for closing the first groove 21 is covered on the box shell body 1; wherein the cover plate 22 and the first groove 21 cooperate to form the first cooling cavity 2. The cover plate 22 may be fixed to the cabinet body 1 by means of bolts, pins, or the like. The cover plate 22 may be a circular cylindrical plate that is fitted with the first groove 21. In one embodiment, the cover 22 is removably connected to the cabinet body 1.

A circular second groove 31 is arranged on the inner wall of the cavity 12, and a gear ring 32 for sealing the second groove 31 is arranged on the cavity 12; wherein, the outer wall of ring gear 32 is supported against the inner wall of cavity 12, and ring gear 32 matches with second recess 31 and forms second cooling cavity 3. The second cooling cavity 3 is formed by the gear ring 32 and the second groove 31, so that the structure is compact, the manufacturing is convenient, the space size of the cavity 12 is not influenced, the structural stability is good, and the reasonable design concept of finite element thermal field analysis is met.

A second seal ring 33 is provided at a contact portion between the inner wall of the cavity 12 and the ring gear 32. The second sealing ring 33 may be an O-ring for sealing, which prevents the cooling water in the second cooling chamber 3 from entering the cavity 12 and contaminating the lubricating oil.

In an embodiment, a circular third groove 322 is disposed on the outer wall of the ring gear 32 and surrounds the ring gear 32, and the third groove 322 and the second groove 31 are matched to form the second cooling cavity 3. The provision of the third recess may increase the volume of the second cooling cavity 3. The second seal ring 33 is disposed outside the third groove 322.

The second water outlet 35 comprises a water outlet channel 351 and two outlets 352, the water outlet channel 351 is arranged on the first surface 1a of the box shell body 1, one end of the water outlet channel 351 is provided with a detachable first water outlet plug 353, and the other end of the water outlet channel is communicated with the second cooling cavity 3; two outlets 352 are opened on the first top portion 1b of the cabinet body 1 and communicate with the water outlet passage 351, and a second water outlet plug 354 is detachably mounted on the two outlets 352.

A drain hole 36 communicated with the second cooling cavity 3 is arranged on the box shell body 1, and a detachable drain plug 361 is arranged in the drain hole 36, wherein the drain hole 36 is positioned below the second water outlet 35 and is used for quickly draining the circulating cooling water in the second cooling cavity 3.

Please refer to fig. 4, which is a schematic structural diagram of a cooling gearbox structure 100 according to an embodiment of the present application. The contact part of the cover plate 22 and the box shell body 1 is provided with a first sealing ring 23. The first sealing ring 23 may be an O-ring for sealing, which can prevent the cooling water in the first cooling cavity 2 from entering the inner hole 11 and polluting the lubricating oil.

The second water inlet 34 comprises a water inlet passage 341 and two inlets 342, the water inlet passage 341 is arranged on the first surface 1a of the box shell body 1, one end of the water inlet passage 341 is provided with a detachable first water inlet plug 343, and the other end is communicated with the second cooling cavity 3; two inlets 342 are opened on the first bottom 1c of the cabinet body 1 and communicated with the water inlet passage 341, and a detachable second water inlet plug 344 is installed at the two inlets 342.

In one embodiment, the first inlet plug 343, the second inlet plug 344, the first outlet plug 353, the second outlet plug 354 and the drain plug 361 are screw plugs.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.