Gear oil heat dissipation device applied to hoisting equipment, speed reducer and crane

Abstract

The utility model discloses a gear oil heat dissipation device applied to hoisting equipment, a speed reducer and a crane, and relates to the technical field of speed reducer heat dissipation, the gear oil heat dissipation device applied to the hoisting equipment comprises a circulation pipeline, a heat dissipation device, a driving device and a connecting structure, the radiator is arranged on the circulating pipeline and used for radiating gear oil in the radiator, the driving device is arranged on the circulating pipeline and used for driving the gear oil to flow into the radiator, and the connecting structure is arranged between the radiator and the driving device and used for connecting the driving device to the radiator. According to the gear oil cooling device, the radiator can be integrated with the driving device, the size of the gear oil cooling device applied to the hoisting equipment can be reduced, the gear oil cooling structure can be installed in a crane, and therefore the problem that an existing cooling device is large in occupied space and cannot be installed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of reducers, in particular to a gear oil heat dissipation device, a reducer and a crane applied to lifting equipment. Background Art

[0002] At present, when the reducer of the crane works continuously, due to the high pressure, the temperature of the gear oil increases, the gear wears faster, the bearing lubrication is poor, the working efficiency is reduced, the service life of the gearbox is shortened, and the maintenance cost is increased. For this reason, the relevant technology provides a heat dissipation device, which guides the gear oil in the reducer into the radiator for heat dissipation through a driving device, and then injects the gear oil after heat dissipation into the reducer. However, this method requires the addition of a radiator and a driving device, which occupies a large space. However, the installation space in the crane is limited, so the heat dissipation device cannot be installed. Utility Model Content

[0003] The main purpose of the utility model is to provide a gear oil heat dissipation device, a reducer and a crane used in lifting equipment, aiming to solve the problem that the existing heat dissipation device occupies a large space and cannot be installed.

[0004] In order to achieve the above-mentioned purpose, the gear oil heat dissipation device applied to lifting equipment proposed in the present invention is used for a reducer. The gear oil heat dissipation device applied to lifting equipment comprises:

[0005] Circulation pipeline, both ends of which are used to connect to the reducer housing;

[0006] A radiator, disposed in the circulation pipeline, for dissipating heat from the gear oil in the radiator;

[0007] a driving device, disposed in the circulation pipeline, for driving the gear oil to flow into the radiator; and

[0008] The connecting structure is arranged between the radiator and the driving device, and is used for connecting the driving device to the radiator.

[0009] In one embodiment, the connection structure comprises:

[0010] a connecting piece, one end of which is mounted on the radiator and the other end of which extends along the thickness direction of the radiator; and

[0011] The mounting frame is mounted on the other end of the connecting member and is used for mounting the driving device.

[0012] In one embodiment, the mounting bracket and the heat sink are arranged on the same side of the connecting member.

[0013] In one embodiment, two driving devices are provided, and the two driving devices are installed on a mounting frame at intervals along a height direction of the radiator.

[0014] In one embodiment, the gear oil heat sink for lifting equipment further comprises a heat dissipation fan disposed on one side of the radiator to dissipate heat from the radiator; and / or,

[0015] The driving device includes a gear pump and a driving motor drivingly connected to the gear pump.

[0016] In one embodiment, the radiator and the driving device are respectively disposed on the air inlet side and the air outlet side of the cooling fan.

[0017] In one embodiment, two driving devices are provided, and the two driving devices are arranged in parallel.

[0018] In one embodiment, the gear oil heat dissipation device applied to the lifting equipment further includes a one-way valve provided in the circulation pipeline; and / or,

[0019] The gear oil heat dissipation device applied to the lifting equipment further includes a filter arranged in the circulation pipeline; and / or,

[0020] The gear oil heat dissipation device applied to lifting equipment further comprises a temperature sensor arranged in the circulation pipeline.

[0021] The utility model also provides a speed reducer, comprising the above-mentioned gear oil heat sink for lifting equipment, the gear oil heat sink for lifting equipment comprising:

[0022] Circulation pipeline, both ends of which are used to connect to the reducer housing;

[0023] A radiator, disposed in the circulation pipeline, for dissipating heat from the gear oil in the radiator;

[0024] a driving device, disposed in the circulation pipeline, for driving the gear oil to flow into the radiator; and

[0025] The connecting structure is arranged between the radiator and the driving device, and is used for connecting the driving device to the radiator.

[0026] The utility model also provides a crane, comprising:

[0027] Lower walking body;

[0028] an upper rotating body, rotatably mounted on the upper end of the lower walking body; and

[0029] A reducer includes the above-mentioned reducer, wherein the reducer is arranged between the lower walking body and the upper rotating body.

[0030] The technical solution of the utility model is to provide the circulation pipeline to connect the radiator with the reducer housing so that the gear oil in the reducer can flow through the radiator, and to provide the radiator to dissipate the heat of the gear oil. The driving device is provided to drive the gear oil to flow into the radiator so that the radiator can dissipate the heat of the gear oil. At the same time, the connecting structure is provided to connect the radiator with the driving device so that the radiator can be integrated with the driving device, which is beneficial to reducing the volume of the gear oil heat dissipation device so that the gear oil heat dissipation structure can be installed in the crane, thereby solving the problem that the existing heat dissipation device occupies a large space and cannot be installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0032] Figure 1 A schematic structural diagram of an embodiment of a gear oil heat dissipation device for lifting equipment provided by the utility model;

[0033] Figure 2 A schematic structural diagram of another embodiment of the gear oil heat dissipation device for lifting equipment provided by the utility model;

[0034] Figure 3 The present invention is a schematic structural diagram of an embodiment of a crane provided by the utility model.

[0035] Description of Figure Numbers:

[0036] 100. Gear oil cooling device for lifting equipment; 1. Radiator; 2. Driving device; 21. Gear pump; 22. Driving motor; 3. Connecting structure; 31. Connecting piece; 32. Mounting frame; 4. Cooling fan; 5. Circulating pipeline; 6. Check valve; 7. Filter; 8. Temperature sensor; 9. Reducer housing.

[0037] 1000, crane; 200, lower walking body; 300, upper rotating body.

[0038] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0042] At present, when the reducer of the crane works continuously, due to the high pressure, the temperature of the gear oil increases, the gear wears faster, the bearing lubrication is poor, the working efficiency is reduced, the service life of the gearbox is shortened, and the maintenance cost is increased. For this reason, the relevant technology provides a heat dissipation device, which guides the gear oil in the reducer into the radiator for heat dissipation through a driving device, and then injects the gear oil after heat dissipation into the reducer. However, this method requires the addition of a radiator and a driving device, which occupies a large space. However, the installation space in the crane is limited, so the heat dissipation device cannot be installed.

[0043] Based on this, the utility model provides a gear oil heat sink for lifting equipment, which is used for a reducer, and aims to solve the problem that the existing heat sink occupies a large space and cannot be installed. Figure 1 and Figure 2 The present invention is a schematic structural diagram of a gear oil heat dissipation device for use in lifting equipment.

[0044] See also Figure 1 and Figure 2 In one embodiment of the utility model, the gear oil cooling device 100 applied to lifting equipment includes a circulation pipeline 5, a radiator 1, a driving device 2 and a connecting structure 3, the two ends of the circulation pipeline 5 are used to connect the reducer, the radiator 1 is arranged in the circulation pipeline 5, and is used to dissipate the heat of the gear oil in the radiator 1, the driving device 2 is arranged in the circulation pipeline 5, and is used to drive the gear oil to flow into the radiator 1, and the connecting structure 3 is arranged between the radiator 1 and the driving device 2, and is used to connect the driving device 2 to the radiator 1.

[0045] The technical solution of the utility model is to provide the circulation pipeline 5 to connect the radiator 1 with the reducer housing 9 so that the gear oil in the reducer can flow through the radiator 1, and to provide the radiator 1 so as to dissipate the heat of the gear oil. The driving device 2 is provided so as to drive the gear oil to flow into the radiator 1 so that the radiator 1 can dissipate the heat of the gear oil. Meanwhile, the connecting structure 3 is provided to connect the radiator 1 with the driving device 2 so that the radiator 1 can be integrated with the driving device 2, which is beneficial to reducing the volume of the gear oil heat dissipation device 100 so that the gear oil heat dissipation structure can be installed in the crane 1000, thereby solving the problem that the existing heat dissipation device occupies a large space and cannot be installed.

[0046] Furthermore, the connecting structure 3 includes a connecting member 31 and a mounting frame 32, wherein one end of the connecting member 31 is mounted on the radiator 1, and the other end extends along the thickness direction of the radiator 1. The mounting frame 32 can be installed on the other end of the connecting member 31 for installation of the driving device 2. In this way, the driving device 2 is installed by setting the mounting frame 32, and the connecting member 31 is set to connect the mounting frame 32 and the radiator 1, so that the driving device 2 and the radiator 1 are integrated together.

[0047] It is understandable that there are many ways to form the connecting member 31 and the mounting frame 32. The connecting member 31 and the mounting frame 32 may be integrally formed or assembled, and the present invention does not limit this. Furthermore, there are many ways to connect the connecting member 31 and the radiator 1. The connecting member 31 and the radiator 1 may be connected by bolts or welding, and the present invention does not limit this. Similarly, there are many ways to connect the drive device 2 and the mounting frame 32. The drive device 2 may be installed on the mounting frame 32 by riveting or by bolts. Specifically, in the present embodiment, the drive device 2 is detachably installed on the mounting frame 32. In this way, a detachable structure is adopted so that the drive device 2 can be replaced as needed, thereby facilitating subsequent maintenance or replacement.

[0048] In one embodiment of the present invention, the mounting frame 32 and the radiator 1 are arranged on the same side of the connecting member 31, so that the extension direction of the mounting frame 32 is consistent with the height direction of the radiator 1, so as to utilize the height space of the radiator 1 to install the drive device 2, thereby facilitating the improvement of the space utilization rate of the gear oil heat sink 100. Of course, in other embodiments, the mounting frame 32 and the radiator 1 can also be arranged on both sides of the connecting member 31, respectively, and the present invention does not limit this, but such an arrangement will increase the height of the gear oil heat sink 100, thereby increasing the volume of the gear oil heat sink 100.

[0049] Generally speaking, the greater the power of the driving device 2, the larger its volume will be. However, due to the limitation of the installation space, the power of the driving device 2 cannot be too large, so that the power of the driving device 2 is small, which will affect the heat dissipation effect of the gear oil heat dissipation device 100. For this reason, in this embodiment, two driving devices 2 are provided, and the two driving devices 2 are installed on the mounting frame 32 at intervals along the height direction of the radiator 1. In this way, by providing two driving devices 2, the power of the gear oil heat dissipation device 100 applied to the lifting equipment is increased, so as not to affect the heat dissipation effect of the gear oil heat dissipation device 100 applied to the lifting equipment. At the same time, the two driving devices 2 are arranged along the height direction of the radiator 1 to make full use of the height space of the radiator 1 and improve the space utilization rate of the gear oil heat dissipation device 100 applied to the lifting equipment. Of course, in other embodiments, the two driving devices 2 can also be arranged at intervals along the thickness direction of the radiator 1, and the utility model is not limited to this, but such an arrangement will increase the horizontal size of the gear oil heat dissipation device 100 applied to the lifting equipment, and thus increase the volume of the gear oil heat dissipation device 100 applied to the lifting equipment.

[0050] In one embodiment of the utility model, the gear oil cooling device 100 applied to lifting equipment also includes a cooling fan 4 arranged on one side of the radiator 1 to dissipate heat for the radiator 1. Thus, by providing the cooling fan 4 to air-cool the radiator 1, it helps to improve the heat dissipation effect of the gear oil cooling device 100 applied to lifting equipment.

[0051] In one embodiment of the utility model, the driving device 2 includes a gear pump 21 and a driving motor 22 connected to the gear pump 21. Since the gear pump 21 is relatively small in size, the gear pump 21 is used to help reduce the size of the driving device 2. At the same time, the driving motor 22 is provided to drive the gear pump 21 to work, so as to drive the gear oil in the reducer housing 9 to flow into the radiator 1 for heat dissipation.

[0052] It should be noted that the above two related technical features: "The gear oil cooling device 100 used for lifting equipment also includes a cooling fan 4 arranged on one side of the radiator 1", and "The driving device 2 includes a gear pump 21 and a driving motor 22 connected to the gear pump 21" can be set one by one or at the same time. Obviously, setting them at the same time will have a better effect.

[0053] In one embodiment of the utility model, the radiator 1 and the driving device 2 are arranged on the air inlet side and the air outlet side of the cooling fan 4. In this way, the radiator 1 is arranged on the air inlet side of the cooling fan 4 so that the cooling fan 4 can promptly extract the heat from the radiator 1. At the same time, the driving device 2 is arranged on the air outlet side of the cooling fan 4 so as not to affect the air intake of the cooling fan 4, thereby avoiding affecting the cooling effect of the cooling fan 4 on the cooling cavity.

[0054] In one embodiment of the utility model, two drive devices 2 are provided, and the two drive devices 2 are arranged in parallel. Thus, by adopting the parallel arrangement, on the one hand, when one of the drive devices 2 fails, the other drive device 2 can still work, which is beneficial to improving the reliability of the gear oil cooling device 100. On the other hand, since the power of the drive device 2 is relatively low, the gear oil flow in the circulation pipeline 5 is relatively low, which may cause the gear oil cooling device 100 to not dissipate enough heat. Therefore, by adopting two drive devices 2 arranged in parallel, the gear oil flow is increased, and the heat dissipation effect of the gear oil cooling device 100 is improved to avoid insufficient heat dissipation of the gear oil cooling device 100.

[0055] In one embodiment of the present invention, please refer to Figure 2The gear oil heat dissipation device 100 applied to the lifting equipment also includes a one-way valve 6 arranged in the circulation pipeline 5, so that the gear oil can flow in one direction in the circulation pipeline 5 to prevent the gear oil in the circulation pipeline 5 from flowing back.

[0056] In one embodiment of the present invention, please refer to Figure 2 The gear oil cooling device 100 applied to the lifting equipment further includes a filter 7 arranged in the circulation pipeline 5 so as to filter out impurities in the circulation pipeline 5 to prevent the impurities from clogging the circulation pipeline 5.

[0057] In one embodiment of the present invention, please refer to Figure 2 The gear oil heat sink 100 for lifting equipment further includes a temperature sensor 8 disposed in the circulation pipeline 5 to detect the oil temperature in the circulation pipeline 5. Thus, by disposing the temperature sensor 8 to detect the oil temperature in the circulation pipeline 5, the gear oil flow in the circulation pipeline 5 can be adjusted according to the oil temperature, thereby facilitating accurate control of the gear oil temperature. Further, the temperature sensor 8 is disposed at the inlet and / or outlet of the reducer housing 9.

[0058] It should be noted that the above three related technical features: "The gear oil cooling device 100 applied to the lifting equipment also includes a one-way valve 6 arranged on the circulation pipeline 5", "The gear oil cooling device 100 applied to the lifting equipment also includes a filter 7 arranged on the circulation pipeline 5", "The gear oil cooling device 100 applied to the lifting equipment also includes a temperature sensor 8 arranged on the circulation pipeline 5" can be set one by one or two by one or at the same time. Obviously, setting them together will have a better effect.

[0059] The utility model also proposes a reducer, which includes a gear oil heat sink 100 applied to lifting equipment. The specific structure of the gear oil heat sink 100 applied to lifting equipment refers to the above embodiment. Since the reducer adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0060] The utility model also provides a crane 1000, see Figure 3The crane 1000 includes a lower traveling body 200, an upper rotating body 300 and the above-mentioned reducer. The upper rotating body 300 is rotatably installed on the upper end of the lower traveling body 200. The reducer is arranged between the lower traveling body 200 and the upper rotating body 300. The specific structure of the reducer refers to the above-mentioned embodiment. Since the crane 1000 adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0061] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A gear oil heat dissipation device used in lifting equipment, used for a reducer, characterized in that: The gear oil heat dissipation device applied to lifting equipment comprises: Circulation pipeline, both ends of which are used to connect to the reducer housing; A radiator, disposed in the circulation pipeline, for dissipating heat from the gear oil in the radiator; a driving device, disposed in the circulation pipeline, for driving the gear oil to flow into the radiator; and A connecting structure, provided between the radiator and the driving device, for connecting the driving device to the radiator; The connection structure comprises: a connecting piece, one end of which is mounted on the radiator and the other end of which extends along the thickness direction of the radiator; and The mounting frame is mounted on the other end of the connecting member and is used for mounting the driving device.

2. The gear oil heat dissipation device for lifting equipment according to claim 1, characterized in that: The mounting frame and the radiator are arranged on the same side of the connecting member.

3. The gear oil heat dissipation device for lifting equipment according to claim 1, characterized in that: Two driving devices are provided, and the two driving devices are installed on the mounting frame at intervals along the height direction of the radiator.

4. The gear oil heat dissipation device for lifting equipment according to claim 1, characterized in that: The gear oil heat dissipation device applied to lifting equipment further comprises a heat dissipation fan arranged on one side of the radiator for dissipating heat from the radiator; and / or, The driving device includes a gear pump and a driving motor drivingly connected to the gear pump.

5. The gear oil heat dissipation device for lifting equipment according to claim 4, characterized in that: The radiator and the driving device are respectively arranged on the air inlet side and the air outlet side of the cooling fan.

6. The gear oil heat dissipation device for lifting equipment according to claim 1, characterized in that: Two driving devices are provided, and the two driving devices are arranged in parallel.

7. The gear oil heat dissipation device for lifting equipment according to claim 1, characterized in that: The gear oil heat dissipation device applied to the lifting equipment further includes a one-way valve arranged in the circulation pipeline; and / or, The gear oil heat dissipation device applied to the lifting equipment further includes a filter arranged in the circulation pipeline; and / or, The gear oil heat dissipation device applied to lifting equipment further comprises a temperature sensor arranged in the circulation pipeline.

8. A reducer, characterized in that: It comprises the gear oil heat dissipation device applied to lifting equipment as described in any one of claims 1 to 7.

9. A crane, characterized in that: include: Lower walking body; An upper rotating body, rotatably mounted on the upper end of the lower walking body; as well as, A reducer, comprising the reducer as claimed in claim 8, wherein the reducer is arranged between the lower walking body and the upper rotating body.

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