Planet wheel sliding bearing loading test bench

Abstract

The utility model discloses a planet wheel sliding bearing loading test bench. The planet wheel sliding bearing loading test bench comprises a tool accompanying test box and a tool tested box. The tool accompanying test box comprises an input end and two output ends, and the input end is connected with a driving motor; the tool tested box comprises a box body, a planetary gear and two gear shafts, the planetary gear and the two gear shafts are located in the box body, the two gear shafts are parallel to each other and rotatably installed in the box body, the two gear shafts are correspondingly connected with the two output ends respectively, a hydraulic loader is arranged between one gear shaft and the correspondingly connected output end, and the hydraulic loader is connected with the planetary gear. The hydraulic loader is used for applying load to the gear shafts connected with the hydraulic loader, the planetary gear is installed between the two gear shafts through the sliding bearing to be tested, and the planetary gear is meshed with the gears on the two gear shafts. By means of the arrangement, the test bed is simple in structure and low in input cost, the hydraulic loader is used for star gear loading, a high-power loading test motor does not need to be input, meanwhile, the internal power of a test system is closed, and test energy consumption is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sliding bearing test technical field, especially relate to a kind of planet wheel sliding bearing loading test bench. BACKGROUND

[0002] To reduce wind power gear box manufacturing cost and improve torque density, sliding bearing is more and more widely used in wind power gear box. To verify the use performance and reliability of sliding bearing, sliding bearing sample test process is mainly divided into bearing manufacturer single cylinder loading test, gear box manufacturer prototype test and main machine manufacturer hanging machine test three stages. When prototype test is carried out in gear box manufacturer, generally need to invest two gear box prototypes and use the loading motor that can be matched with the power of gear box to drag. With the power of wind power gear box is more and more big, the cost of sliding bearing gear box prototype test is more and more big, energy consumption in test process is also big, especially if test fails to cause sliding bearing to burn tile, loss is huge.

[0003] Therefore, how to avoid investing high-power loading motor, while reducing test energy consumption, is the technical problem that the person skilled in the art needs to solve at present. CONTENT OF UTILITY MODEL

[0004] The utility model aims at providing a kind of planet wheel sliding bearing loading test bench, can avoid investing high-power loading motor, while reducing test energy consumption.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0006] A kind of planet wheel sliding bearing loading test bench, comprising:

[0007] Tool test box, including one input end and two output ends, input end is connected with driving motor;

[0008] Tool test box, including box, planetary gear located in the box and two gear shafts, two gear shafts are parallel to each other and rotatably installed to the box, two gear shafts are respectively and two output ends corresponding connection, and one of gear shafts and its corresponding connection output end between being provided with hydraulic loader, hydraulic loader is used to load the gear shaft of its connection, planetary gear is installed between two gear shafts by the sliding bearing to be measured, and planetary gear and the gear on two gear shafts are engaged.

[0009] As preferred, the gear shaft not connected with hydraulic loader is provided with gear box shaft coupling between its corresponding connection output end.

[0010] As preferred, motor coupling is provided between driving motor and input end.

[0011] Preferably, the first mounting groove is arranged in the test box for mounting the two gear shafts, and a bearing assembly is arranged in the first mounting groove for supporting the gear shafts.

[0012] Preferably, the test box further comprises a second mounting groove for supporting the sliding bearing to be tested, and the second mounting groove is arranged between the two first mounting grooves.

[0013] Preferably, the diameter of the planetary gear is greater than the diameter of the gears on the two gear shafts.

[0014] Preferably, the test box further comprises a detachable upper cover, which covers the upper sides of the planetary gear and the gear shafts, and is used for protecting the planetary gear and the gear shafts, fixing the gear shafts and the sliding bearing to be tested.

[0015] Preferably, a plurality of bolt holes are arranged on the edge of the box body, and the bolt holes are used in cooperation with fixing bolts to mount the upper cover.

[0016] Preferably, a temperature sensor is arranged in the second mounting groove, and the temperature sensor is used for detecting the temperature of the sliding bearing to be tested after rotation.

[0017] With respect to the above background technology, the utility model provides a kind of planetary wheel sliding bearing loading test bench, comprising: tool test box and tool test box;Tool test box includes an input and two output ends, and input is connected with driving motor;Tool test box includes box body, planetary gear and two gear shafts in box body, two gear shafts are parallel and rotatably installed to box body, two gear shafts are respectively and two output ends corresponding connection, and one gear shaft and its corresponding connection output end between are provided with hydraulic loader, and hydraulic loader is used for load to its connection gear shaft, planetary gear is installed between two gear shafts by sliding bearing to be tested, and planetary gear and the gear on two gear shafts are engaged.

[0018] Specifically, the utility model discloses a drive motor and a tool test box can synchronous output two torques, and the two output ends of tool test box are connected with two gear shafts of tool test box respectively, and the rotatable planetary gear is arranged in the middle of two gear shafts, and the middle part of planetary gear is installed for the measured sliding bearing, and the planetary gear is engaged with the gear on two gear shafts, so when drive motor rotates, can drive two gear shafts to rotate, and then drive planetary gear to rotate, and then make the measured sliding bearing work, and at the same time, the hydraulic loader is arranged between one gear shaft and the output end connected with it, and the load of one gear shaft to planetary gear is changed through hydraulic loader, i.e. the load to the measured sliding bearing is changed, and after operating for a period of time, the performance test of the measured sliding bearing can be completed. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only the embodiments of the present utility model, and for the ordinary skilled in the art, other drawings can be obtained according to the provided drawings without creative labor.

[0020] Figure 1 The planetary wheel sliding bearing loading test bench structure schematic view provided by the embodiments of the present utility model.

[0021] Among them:

[0022] 100-tool test box, 110-input end, 120-output end;

[0023] 200-tool test box, 210-planetary gear, 220-gear shaft, 230-measured sliding bearing, 240-first installation slot, 250-second installation slot;

[0024] 300-hydraulic loader;

[0025] 400-gear box coupling;

[0026] 500-motor coupling. DETAILED DESCRIPTION

[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, 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 within the protection scope of the present application.

[0028] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left" and "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated position or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0030] The present application aims to provide a planetary gear sliding bearing loading test bench, which can avoid the use of high-power loading motors and reduce test energy consumption.

[0031] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0032] Please refer to Figure 1 The present application provides a planetary gear sliding bearing loading test bench, which comprises a tool test box 100 and a tool test box 200; the tool test box 100 comprises an input end 110 and two output ends 120, the input end 110 is connected with a driving motor; the tool test box 200 comprises a box body, a planetary gear 210 located in the box body and two gear shafts 220, the two gear shafts 220 are parallel to each other and rotatably installed in the box body, the two gear shafts 220 are respectively connected with the two output ends 120, and a hydraulic loader 300 is arranged between one of the gear shafts 220 and the corresponding output end 120, the hydraulic loader 300 is used to apply load to the connected gear shaft 220, the planetary gear 210 is installed between the two gear shafts 220 through a sliding bearing 230 to be tested, and the planetary gear 210 and the gears on the two gear shafts 220 are engaged.

[0033] Specifically, as Figure 1As shown, the loading test bench provided in the embodiment mainly consists of a tool test box 100 and a tool test box 200; wherein the tool test box 100 is provided with two output ends 120 capable of synchronously outputting rotating speeds, and an input end 110 connected with a power source, while the tool test box 200 comprises a box body and two gear shafts 220 and planetary gears arranged in the box body, it is to be noted that the middle part of the planetary gears is provided with a sliding bearing 230 to be tested, the rotation of the planetary gears 210 is driven by the two gear shafts 220 engaged on the two sides, and one of the two gear shafts 220 is subjected to a load; in the embodiment, the sliding bearing 230 to be tested needs to test its performance in various aspects after working for a period of time, such as temperature, therefore, in the embodiment, the sliding bearing 230 to be tested is made to work by applying a load to the planetary gears while rotating; and the power for rotating the two gear shafts 220 in the embodiment comes from the two output ends 120 of the tool test box 100, and in order to apply a load, a hydraulic loader 300 is arranged between the output end 120 connected with one of the two gear shafts 220 and the output end 120, the hydraulic loader 300 can provide different torque loads for the system after high-pressure oil with different pressures is input; in this way, the test bench only needs one input motor to complete the test of the sliding bearing 230 to be tested, thereby reducing energy consumption.

[0034] It is to be noted that the internal structures of the tool test box 100 and the tool test box 200 are similar, except that the middle part of the planetary gears 210 connecting the two gear shafts 220 in the tool test box 200 is provided with the sliding bearing 230 to be tested; the two output ends 120 in the tool test box 100 can also be provided with the two gear shafts 220, but one end of one of the two gear shafts 220 needs to be connected with the power source as the input end 110, and the middle part of the planetary gears 210 connecting the two gear shafts 220 is provided with a standard sliding bearing. Of course, only one structure in the tool test box 100 is proposed in the present text, and the internal structure thereof can also be other structures, as long as one input end 110 and two synchronous output ends 120 can be provided.

[0035] In other words, this invention can simultaneously output two torques using a drive motor and a test chamber 100. The two output ends 120 of the test chamber 100 are respectively connected to the two gear shafts 220 of the test chamber. A rotatable planetary gear 210 is set in the middle of the two gear shafts 220. The sliding bearing 230 to be tested is installed in the middle of the planetary gear 210, and the planetary gear 210 meshes with the gears on the two gear shafts 220. When the drive motor rotates, it can drive the two gear shafts 220 to rotate, thereby driving the planetary gear 210 to rotate, and thus making the sliding bearing 230 to be tested work. At the same time, a hydraulic loader 300 is set between one of the gear shafts 220 and its connected output end 120. The hydraulic loader 300 changes the load of one of the gear shafts 220 on the planetary gear 210, that is, changes the load on the sliding bearing 230 to be tested. After running for a period of time, the performance test of the sliding bearing 230 to be tested can be completed. This setup results in a simple loading test bench structure, requiring only one drive motor to complete the power input, thus reducing the energy consumption required for the experiment.

[0036] Preferably, a gearbox coupling 400 is provided between the gear shaft 220, which is not connected to the hydraulic loader 300, and its corresponding connected output end 120.

[0037] Specifically, such as Figure 1 As shown, in order to enable one of the gear shafts 220 that is not connected to the hydraulic loader 300 to rotate synchronously with its corresponding output end 120, a gearbox coupling 400 is provided between the two; of course, the specific type of coupling can be selected according to actual needs, as long as it can ensure that they can rotate synchronously when transmitting motion and power.

[0038] Preferably, a motor coupling 500 is provided between the drive motor and the input end 110.

[0039] Furthermore, in this embodiment, the power source is selected as a drive motor. Similarly, a motor coupling 500 is provided between the drive motor and the input end 110. This coupling firstly transmits motion and power. Secondly, the motor coupling 500 can also have a protective function to prevent the connected components from bearing excessive load. When the load exceeds a certain limit, the coupling can play an overload protection role to prevent damage to the components.

[0040] Preferably, the tooling test chamber 200 is provided with a first mounting groove 240 for mounting two gear shafts 220, and a bearing assembly for supporting the gear shafts 220 is installed in the first mounting groove 240.

[0041] Specifically, such as Figure 1As shown, two gear shafts 220 are installed in the tool test box 200, and the two gear shafts 220 are supported by bearing assemblies at both ends of the gear shafts 220. Specifically, corresponding first mounting slots 240 are formed in the side walls of the box body, and the bearing assemblies are installed in the first mounting slots 240.

[0042] As preferred, the tool test box 200 further comprises a second mounting slot 250 for supporting the sliding bearing 230 to be tested, and the second mounting slot 250 is located between the two first mounting slots 240.

[0043] Further, in order to install the planetary gear 210 and the sliding bearing 230 to be tested, second mounting slots 250 are formed in the two side walls of the box body, and the second mounting slots 250 are located exactly in the middle of the two first mounting slots 240. The second mounting slots 250 are also semicircular structures, and the radius of the second mounting slots 250 matches the sliding bearing 230 assembly.

[0044] As preferred, the diameter of the planetary gear 210 is greater than the diameter of the gears on the two gear shafts 220.

[0045] It can be understood that the diameter of the planetary gear 210 used to test the sliding bearing 230 to be tested is greater than the diameter of the gears on the two gear shafts 220. This setting is to appropriately reduce the rotation speed of the planetary gear 210, and to facilitate the loading by the hydraulic loader 300. Of course, the specific diameters of the two can be adjusted according to actual needs, and are not limited herein.

[0046] As preferred, the tool test box 200 further comprises a detachable upper cover, which covers the upper sides of the planetary gear 210 and the gear shaft 220, and is used to protect the planetary gear 210 and the gear shaft 220, and to fix the gear shaft 220 and the sliding bearing 230 to be tested.

[0047] It can be understood that in order to prevent the operator from being injured during the test of the sliding bearing 230 to be tested, a detachable upper cover is arranged on the upper side of the box body. After the upper cover is installed, all the parts in the tool test box 200 can be covered. In addition, the installation of the upper cover has another function, that is, the gear shaft 220 and the sliding bearing 230 to be tested are fixed by the cooperation of the upper cover and the box body. In this way, there is no need to set an additional fixing assembly, so that the structure of the tool test box 200 is simple and the assembly is convenient.

[0048] As preferred, a plurality of bolt holes are arranged on the edge of the box body, and the bolt holes are used in cooperation with fixing bolts to install the upper cover.

[0049] Further, in order to facilitate the installation of the upper cover of the box, a flange is arranged on the circumference of the box, and a plurality of bolt holes are arranged on the flange, and corresponding bolt holes are arranged on the corresponding positions of the upper cover, and the installation can be completed by aligning the upper cover and the box and then passing the fixing bolts.

[0050] Preferably, a temperature sensor is arranged in the second mounting groove 250, and the temperature sensor is used to detect the temperature of the sliding bearing 230 after rotation.

[0051] In another embodiment, a temperature sensor can be arranged in the second mounting groove 250, so that the temperature of the sliding bearing 230 under test can be monitored in real time during the test to determine whether the sliding bearing 230 under test meets the standard, and the sliding bearing 230 under test does not need to be disassembled after the planetary gear 210 rotates for a specified time for measurement, which can reduce the test steps and make the test more convenient.

[0052] It should be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0053] The embodiments in the present specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0054] The above provides a detailed description of the embodiments of the present application. The principle and implementation method of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the method and core idea of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A planetary gear slide bearing loading test rig, characterized in that The utility model relates to a test box for tooling, comprising: a tooling test box (100) comprising an input end (110) and two output ends (120), the input end (110) is connected with a driving motor; a tooling test box (200) comprising a box body, a planetary gear (210) and two gear shafts (220) in the box body, the two gear shafts (220) are parallel to each other and rotatably installed in the box body, the two gear shafts (220) are respectively connected with two output ends (120) corresponding, and a hydraulic loader (300) is arranged between one of the gear shafts (220) and the output end (120) corresponding thereto, the hydraulic loader (300) is used for applying load to the gear shaft (220) connected thereto, the planetary gear (210) is installed between the two gear shafts (220) through a sliding bearing (230) to be measured, and the planetary gear (210) and the gears on the two gear shafts (220) are engaged.

2. The planetary wheel sliding bearing loading test stand of claim 1, wherein, A gear box coupling (400) is arranged between the gear shaft (220) not connected with the hydraulic loader (300) and the output end (120) corresponding thereto.

3. The planetary wheel sliding bearing loading test stand of claim 1, wherein, A motor coupling (500) is arranged between the driving motor and the input end (110).

4. The planetary wheel sliding bearing loading test stand of claim 1, wherein, The tooling test box (200) is provided with a first mounting groove (240) for mounting the two gear shafts (220), and a bearing assembly for supporting the gear shaft (220) is mounted in the first mounting groove (240).

5. The planetary wheel sliding bearing loading test stand of claim 4, wherein, The tooling test box (200) is further provided with a second mounting groove (250) for supporting the sliding bearing (230) to be measured, and the second mounting groove (250) is located between the two first mounting grooves (240).

6. The planetary wheel sliding bearing loading test stand of claim 1, wherein, The diameter of the planetary gear (210) is greater than the diameter of the gears on the two gear shafts (220).

7. The planetary wheel sliding bearing loading test stand of claim 1, wherein, The tooling test box (200) further comprises a detachable upper cover covering the upper sides of the planetary gear (210) and the gear shafts (220), for protecting the planetary gear (210) and the gear shafts (220), fixing the gear shafts (220) and the sliding bearing (230) to be measured.

8. The planetary wheel sliding bearing loading test stand of claim 7, characterized in that A plurality of bolt holes are arranged on the edge of the box body, and the bolt holes are used in cooperation with fixing bolts to mount the upper cover.

9. The planetary wheel sliding bearing loading test stand of claim 5, wherein, A temperature sensor is arranged in the second mounting groove (250), and the temperature sensor is used to detect the temperature of the sliding bearing (230) to be measured after rotation.

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