Connecting device of experiment tool and experiment tool

Abstract

The utility model relates to a connecting device of an experiment tool and the experiment tool. The connecting device comprises a base, a reducing sleeve and a bearing. The base is provided with a matching through hole. And the reducing sleeve is inserted into the matching through hole. The bearing is arranged on the reducing sleeve in a sleeving mode and located between the base and the reducing sleeve, and the reducing sleeve is in running fit with the base through the bearing. Wherein the wall portion of the reducing sleeve is provided with a first manhole communicated with an inner cavity of the reducing sleeve, the base is provided with a second manhole, and the second manhole is located on a rotation path where the first manhole rotates along with the reducing sleeve, so that when the reducing sleeve is in a static state, at least parts of the first manhole and the second manhole are oppositely arranged in the radial direction of the reducing sleeve. The embodiment of the utility model is favorable for reducing the cost and is convenient to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power, in particular to a connecting device of an experimental tool and the experimental tool. Background Art

[0002] The gearbox is an important mechanical component in a wind turbine generator set, used to transfer the power generated by the impeller under the action of wind to the generator and make it get the corresponding speed. Before leaving the factory, the gearbox needs to be tested for factory testing, and the temperature rise, vibration, noise, meshing and lubrication and sealing performance of the gearbox are fully verified to ensure that the product meets the design requirements. For this purpose, it is usually necessary to build a special test platform to fully test and verify the gearbox.

[0003] The existing test platform is usually supported and connected by two sets of shaft systems between the gearboxes, which makes the product investment cost high. Utility Model Content

[0004] The embodiments of the present application provide a connection device for an experimental tool and an experimental tool, which are beneficial to reducing costs and facilitating maintenance.

[0005] On the one hand, according to an embodiment of the present application, a connection device for an experimental tool is proposed, including: a base, having a matching through hole; an adapter sleeve, inserted into the matching through hole; a bearing, sleeved on the adapter sleeve and located between the base and the adapter sleeve, the adapter sleeve and the base are rotatably matched through the bearing; wherein, the wall portion of the adapter sleeve is provided with a first manhole connected to its own inner cavity, and the base is provided with a second manhole, and the second manhole is located on the rotation path of the first manhole rotating with the adapter sleeve, so that the first manhole and the second manhole are at least partially arranged relative to each other in the radial direction of the adapter sleeve when the adapter sleeve is in a stationary state.

[0006] According to one aspect of the embodiment of the present application, the opening area of ​​the second manhole is larger than the opening area of ​​the first manhole.

[0007] According to one aspect of the embodiment of the present application, the connecting device includes a connecting flange, and the connecting flanges are respectively arranged on both sides of the adapter sleeve along its axial direction.

[0008] According to one aspect of an embodiment of the present application, the adapter sleeve includes a main sleeve and connecting parts that are axially relatively distributed on both sides of the main sleeve, the connecting parts are arranged on the side where the inner cavity is located along the radial direction of the main sleeve, the bearing is clamped between the connecting part and the base, the first manhole is arranged on the main sleeve, and the connecting flange is connected to the connecting part.

[0009] According to one aspect of the embodiment of the present application, the connecting device further includes an adapter, and the adapters are respectively provided on both sides of the base along the axial direction of the adapter sleeve.

[0010] According to one aspect of an embodiment of the present application, the adapter includes a first adapter part, an adapter tube and a second adapter part, the first adapter part is connected to the base, the adapter tube has a first adapter end and a second adapter end along the axial direction, the first adapter end is connected to the first adapter part, the second adapter end is connected to the second adapter part, and the radial dimension of the second adapter end is not less than the radial dimension of the first adapter end.

[0011] According to one aspect of an embodiment of the present application, the connecting device also includes a seal, which is annular and arranged between the adapter sleeve and the base; the seals are arranged in pairs, and in the axial direction, the first manhole and the second manhole are respectively arranged between the paired seals.

[0012] According to one aspect of the embodiment of the present application, the sealing member is connected to the adapter sleeve and has a gap with the base in the radial direction and the axial direction respectively.

[0013] According to one aspect of the embodiment of the present application, the bearing is one of a roller bearing and a sliding bearing.

[0014] On the other hand, according to an embodiment of the present application, an experimental tool is proposed, including: a platform; and a connecting device such as the above-mentioned experimental tool, wherein the connecting device is arranged on the platform.

[0015] The embodiment of the present application provides a connecting device for an experimental tool and an experimental tool, wherein the connecting device includes a base, an adapter sleeve and a bearing. The connecting device can be connected to gear boxes on both sides of the axial direction respectively to conduct experiments on one of the gear boxes, which is beneficial to reduce costs and facilitates transportation. In addition, the adapter sleeve is provided with a first manhole and the base is provided with a second manhole. An operator can enter the inner cavity of the adapter sleeve through the second manhole and the first manhole in turn to perform maintenance or construction on the interior of the adapter sleeve, which is convenient for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0017] Figure 1 A schematic diagram of the partial structure of an experimental tooling of an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the partial structure of an experimental tooling according to another embodiment of the present application.

[0019] in:

[0020] 100-connection device;

[0021] 10- base;

[0022] 20-adapter sleeve; 20a-first manhole; 21-main body sleeve; 22-connecting part; 30-bearing;

[0023] 40-connecting flange; 50-adapter; 51-first adaptor; 52-adapter tube; 53-second adaptor;

[0024] 60-seal;

[0025] 201-first gear box; 202-second gear box;

[0026] X-axial direction; Y-radial direction; DETAILED DESCRIPTION

[0027] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0028] The directional words appearing in the following description are all directions shown in the figures, and do not limit the connection devices and experimental tools of the present application. In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0029] In order to better understand this application, Figure 1 and Figure 2 The connecting device and the experimental tooling according to the embodiments of the present application are described in detail.

[0030] The gearbox is an important mechanical component in a wind turbine generator set, used to transfer the power generated by the impeller under the action of wind to the generator and make it get the corresponding speed. Before leaving the factory, the gearbox needs to be tested for factory testing, and the temperature rise, vibration, noise, meshing and lubrication and sealing performance of the gearbox are fully verified to ensure that the product meets the design requirements. For this purpose, it is usually necessary to build a special test platform to fully test and verify the gearbox.

[0031] The existing test platform is usually supported and connected by two sets of shaft systems between the gearboxes, which makes the product investment cost high.

[0032] Based on the above defects, the embodiment of the present application provides a connection device 100 for an experimental tooling, which can reduce costs and facilitate maintenance. The connection device 100 for the experimental tooling proposed in the embodiment of the present application can be produced and sold as an independent component, and of course, can also be used for experimental tooling and as a component of the experimental tooling to connect the gear box.

[0033] See also Figure 1 , an embodiment of the present application provides a connection device 100 for an experimental tooling, comprising a base 10, an adapter sleeve 20 and a bearing 30. The base 10 has a matching through hole. The adapter sleeve 20 is inserted into the matching through hole. The bearing 30 is sleeved on the adapter sleeve 20 and is located between the base 10 and the adapter sleeve 20, and the adapter sleeve 20 and the base 10 are rotatably matched through the bearing 30. Among them, the wall portion of the adapter sleeve 20 is provided with a first manhole 20a connected to its own inner cavity, and the base 10 is provided with a second manhole, and the second manhole is located on the rotation path of the first manhole 20a rotating with the adapter sleeve 20, so that the first manhole 20a and the second manhole are at least partially arranged opposite to each other in the radial direction Y of the adapter sleeve 20 when the adapter sleeve 20 is in a stationary state.

[0034] The connecting device 100 of the experimental tooling provided in the embodiment of the present application is used to connect the first gear box 201 and the second gear box 202. The connecting device 100 includes a base 10, an adapter sleeve 20 and a bearing 30, that is, the connecting device 100 can be connected to the first gear box 201 on one side along the axial direction X, and can be connected to the second gear box 202 on the other side along the axial direction X, which is conducive to reducing costs. In addition, the adapter sleeve 20 is provided with a first manhole 20a, and the base 10 is provided with a second manhole. The operator can enter the inner cavity of the adapter sleeve 20 through the second manhole and the first manhole 20a in turn to perform maintenance or construction on the interior thereof, which is convenient for maintenance.

[0035] In addition, the connecting device provided in the embodiment of the present application is also helpful in reducing its structural size, facilitating processing and manufacturing as well as transportation.

[0036] Specifically, the adapter sleeve 20 has a first end and a second end relative to each other along its own axial direction X, and the base 10 has a third end and a fourth end relative to each other in the axial direction X, wherein the first end and the second end are located on one side of the axial direction X, and the first end and the third end are used to be respectively connected to the first gearbox 201, and the second end and the fourth end are located on the other side of the axial direction X, and the second end and the fourth end are used to be respectively connected to the second gearbox 202.

[0037] Among them, one of the first gear box 201 and the second gear box 202 is a companion test end gear box, and the other of the first gear box 201 and the second gear box 202 is a main test gear box.

[0038] Optionally, the adapter sleeve 20 and the first gear box 201 and the second gear box 202 can be connected by fasteners such as bolts, studs, screws, etc., and can also be set as a pin connection. The base 10 and the first gear box 201 and the second gear box 202 can be connected by fasteners such as bolts, studs, screws, etc., and can also be set as a pin connection.

[0039] In the embodiment of the present application, the bearing 30 serves to support and fix the connecting sleeve. The number of bearings 30 is set to two, one of which is sleeved on the adapter sleeve 20 at a position close to the first end along the axial direction X, and the other bearing 30 is sleeved on the adapter sleeve 20 at a position close to the second end along the axial direction X, which is beneficial to improve the supporting effect.

[0040] The adapter sleeve 20 is inserted into the base 10 along the axial direction X. Optionally, in the axial direction X, the length of the adapter sleeve 20 is equal to the length of the base 10, which is beneficial to reducing processing costs.

[0041] Optionally, the shape of the first manhole 20a can be set to a circular, rectangular, elliptical or other shape, and the second manhole can be set to a circular, rectangular, elliptical or other shape, which is not limited in the present application.

[0042] Exemplarily, the first manhole 20a and the second manhole have the same shape, which facilitates operators to enter and exit through the first manhole 20a and the second manhole, thereby facilitating maintenance.

[0043] The second manhole is located on the rotation path of the first manhole 20a as the adapter sleeve 20 rotates, so that when the adapter sleeve 20 is in a stationary state, the first manhole 20a and the second manhole are at least partially arranged opposite to each other in the radial direction Y of the adapter sleeve 20, so that when the connecting device 100 is in a stationary state, it is convenient for the operator to enter the second manhole from the first manhole 20a.

[0044] It is understandable that when the adapter sleeve 20 transitions from a rotating state to a stationary state, the first manhole 20a is directly arranged at least partially opposite to the second manhole in the radial direction Y of the adapter sleeve 20, so as to facilitate the operator to enter for maintenance. Of course, when the adapter sleeve 20 just stops, the first manhole 20a and the second manhole may also be in a non-relative state. At this time, the adapter sleeve 20 is manually adjusted to continue to rotate a certain angle, so that the first manhole 20a and the second manhole are at least partially opposite to each other in the radial direction Y of the adapter sleeve 20 and stop rotating, so as to facilitate the operator to enter for maintenance.

[0045] When conducting experimental tests, the connecting device 100 is set on the platform of the experimental tooling, and the connecting device 100 is connected between the first gear box 201 and the second gear box 202. A first generator connected to the first gear box 201 and a second generator connected to the second gear box 202 are also provided on the platform. After starting the first generator, the first generator drives the output shaft of the first gear box 201 to rotate, and the output shaft of the first gear box 201 drives the input shaft of the first gear box 201 to rotate, and the input shaft of the first gear box 201 drives the adapter sleeve 20 of the connecting device 100 connected thereto to rotate, and the adapter sleeve 20 of the connecting device 100 drives the input shaft of the second gear box 202 to rotate, thereby realizing the test of the gear box.

[0046] Optionally, the base 10 can be configured as an integrally formed structure for ease of processing and manufacturing.

[0047] Optionally, the base 10 can be divided into a first base and a second base, and the first base and the second base are butt-jointed along the radial direction Y of the adapter sleeve 20 to improve versatility.

[0048] As an optional implementation, the opening area of ​​the second manhole is larger than the opening area of ​​the first manhole 20a.

[0049] By configuring in this manner, when performing maintenance operations, it is convenient for operators to enter the adapter sleeve 20 from the outside through the second manhole or the first manhole 20a.

[0050] Optionally, in the circumferential direction of the adapter sleeve 20, the extension dimension of the second manhole is greater than the extension dimension of the first manhole 20a. When the adapter sleeve 20 transitions from a rotating state to a stationary state, the first manhole 20a and the second manhole can be guaranteed to be at least partially aligned with each other with a high probability, thereby reducing the probability of manual adjustment, facilitating maintenance operations by operators, and helping to reduce labor costs and operating costs.

[0051] As an optional implementation, the connecting device 100 includes a connecting flange 40 , and the connecting flanges 40 are respectively provided on both sides of the adapter sleeve 20 along the axial direction X thereof.

[0052] By configuring in this manner, the adapter sleeve 20 can be connected to gear boxes of different models via the connecting flange 40, thereby improving versatility.

[0053] The connecting flanges 40 with corresponding sizes can be manufactured according to the models of the gearboxes to be tested. When it is necessary to test the gearboxes of different models, it is only necessary to replace the connecting flanges 40 with corresponding sizes. The operation is simple and helps to improve the versatility.

[0054] Furthermore, there is no need to adapt connecting devices 100 of different sizes to different types of gear boxes. Instead, only the connecting flange 40 needs to be replaced, which helps to reduce costs.

[0055] Optionally, the first end and the second end of the adapter sleeve 20 in the axial direction X can be respectively connected to a connecting flange 40, and the structural dimensions of the connecting flanges connecting the first end and the second end can be set to be the same, that is, to be connected to two gearboxes of the same model. Of course, the structural dimensions of the connecting flanges 40 connected to the first end and the second end can be set to be different, that is, to be connected to two gearboxes of different models, which is beneficial to improving the versatility and flexibility of use of the connecting device 100.

[0056] Please continue reading Figure 1 As an optional implementation, the adapter sleeve 20 includes a main sleeve 21 and connecting parts 22 relatively distributed on both sides of the main sleeve 21 along the axial direction X, the connecting part 22 protrudes from the main sleeve 21 along the radial direction Y toward the inner cavity, the bearing 30 is clamped between the connecting part 22 and the base 10, the first manhole 20a is set in the main sleeve 21, and the connecting flange 40 is connected to the connecting part 22.

[0057] By providing the connecting portion 22 on the adapter sleeve 20, a supporting force can be provided for the bearing 30, and an installation and positioning space can be provided for the bearing 30, which is convenient for installation and positioning and helps to improve the connection reliability.

[0058] Furthermore, the connection portion 22 is used to be connected to the connection flange 40, which helps to improve the connection stability.

[0059] Optionally, the main body cover 21 and the connecting portion 22 are an integrally formed structure, which is easy to process and helps to reduce costs. Of course, the main body cover 21 and the connecting portion 22 can also be provided separately to improve flexibility of use.

[0060] As an optional implementation, the connecting device 100 further includes an adapter 50 , and the adapters 50 are respectively provided on both sides of the base 10 along the axial direction X of the adapter sleeve 20 .

[0061] By configuring in this manner, the base 10 can be connected to gear boxes of different models via the connecting flange 40, thereby improving versatility.

[0062] Adapters 50 with corresponding sizes can be manufactured according to the models of the gearboxes to be tested. When it is necessary to test gearboxes of different models, it is only necessary to replace the adapters 50 with corresponding sizes, which is conducive to improving versatility.

[0063] Furthermore, there is no need to adapt connecting devices 100 of different sizes to different types of gear boxes, and only the adapter 50 needs to be replaced, which helps to reduce costs.

[0064] Optionally, the adapter 50 may be configured as a connecting flange.

[0065] Optionally, the third end and the fourth end of the base 10 in the axial direction X can be connected to the adapter 50 respectively, and the structural dimensions of the connecting flanges connecting the third end and the fourth end can be set to be the same, that is, to be connected to two gearboxes of the same model. Of course, the structural dimensions of the adapter 50 connected to the third end and the fourth end can be set to be different, that is, to be connected to two gearboxes of different models, which is beneficial to improving the versatility and flexibility of use of the connecting device 100.

[0066] See also Figure 2 As an optional implementation, the adapter 50 includes a first adapter portion 51, an adapter tube 52 and a second adapter portion 53. The first adapter portion 51 is connected to the base 10, and the adapter tube 52 has a first adapter end and a second adapter end along the axial direction X. The first adapter end is connected to the first adapter portion 51, and the second adapter end is connected to the second adapter portion 53. The radial Y dimension of the second adapter end is not less than the radial Y dimension of the first adapter end.

[0067] By configuring in this manner, the connecting device 100 can be connected to various types of gearboxes, and the radial Y dimension of the second adapter end is not less than the radial Y dimension of the first adapter end, so that the length dimension of the base 10 in the radial Y direction can be less than or equal to the length dimension of the gearbox connected thereto. That is to say, by changing the structural dimensions of the adapter tube and the second adapter portion 53, a smaller connecting device 100 can be used to connect a larger gearbox, which helps to reduce the weight of the connecting device 100, facilitates transportation, and helps to reduce costs.

[0068] Optionally, the radial dimension Y of the second adapter end may be greater than the radial dimension Y of the first adapter end, and of course, may also be equal to the radial dimension Y of the first adapter end.

[0069] Optionally, the adapter 50 may be configured as a conical flange.

[0070] Optionally, the first adapter part 51, the adapter tube 52, and the second adapter part 53 are an integrally formed structure, which is easy to process and helps reduce costs. Of course, the first adapter part 51, the adapter tube 52, and the second adapter part 53 can also be provided separately to improve flexibility of use.

[0071] As an optional embodiment, the connection device 100 further includes a sealing member 60, which is annular and disposed between the adapter sleeve 20 and the base 10. The sealing members 60 are disposed in pairs, and in the axial direction X, the first manhole 20a and the second manhole are respectively disposed between the paired sealing members 60.

[0072] The sealing member 60 is provided to prevent leakage of oil or the like in the connecting device 100 , thereby ensuring safe operation of the connecting device 100 .

[0073] Optionally, the sealing member 60 may be provided as a sealing ring.

[0074] The sealing members 60 are arranged in pairs, and the sealing members 60 arranged in pairs are relatively distributed along the axial direction X, which is beneficial to improving the sealing effect.

[0075] Furthermore, the first manhole 20a and the second manhole are respectively arranged between the sealing members 60 arranged in pairs, which is beneficial to ensuring the reliability of the first manhole 20a and the second manhole, and also beneficial to ensuring the safety of the operator.

[0076] As an optional implementation, the sealing member 60 is connected to the adapter sleeve 20 and has a gap with the base 10 in the radial direction Y and the axial direction X respectively.

[0077] This arrangement is helpful to improve the sealing effect of the sealing member 60 , thereby helping to improve the reliability of the connecting device 100 .

[0078] Optionally, the seal 60 may be configured as a labyrinth seal, and the first seal 60 includes sealing teeth connected to the adapter sleeve 20 .

[0079] Optionally, the extending direction of the sealing teeth may be the same as the radial direction Y of the adapter sleeve 20 , and of course, may also have an included angle with the radial direction Y of the adapter sleeve 20 .

[0080] As an optional embodiment, the seal 60 is connected between the adapter sleeve 20 and the base 10 along the axial direction X. Optionally, the seal 60 can be set as a skeleton oil seal, felt, etc. When the seal 60 is set to this structure, the connection device 100 also includes a support member arranged between the base 10 and the seal 60, and the seal 60 is arranged between the support member and the adapter sleeve 20 to prevent the base 10 from being damaged by friction, which is conducive to improving the service life of the connection device 100.

[0081] As an optional implementation, the bearing 30 is one of a roller bearing and a sliding bearing.

[0082] Optionally, the bearing 30 included in the connecting device 100 provided in the embodiment of the present application can be configured as a roller bearing, which is beneficial to improving the axial force performance of the bearing 30, making the operation of the connecting device 100 more stable, and helping to improve the reliability of the connecting device 100.

[0083] Optionally, the bearing 30 included in the connection device 100 provided in the present application can also be configured as a sliding bearing, which can withstand impact and vibration loads, thereby helping to improve the stability of the connection device 100.

[0084] Optionally, when the bearing 30 is configured as a sliding bearing, the base 10 is configured as a split base.

[0085] The embodiment of the present application further provides an experimental tool, including a platform and a connecting device 100 of the experimental tool provided in the above embodiments, and the connecting device 100 is arranged on the platform.

[0086] The experimental tooling provided in the embodiment of the present application includes a connecting device 100 that can reduce costs and facilitate maintenance, thereby helping to reduce the cost of the experimental tooling and facilitate maintenance.

[0087] Optionally, the experimental tooling further includes a first generator and a second generator, which are respectively arranged on both sides of the connecting device 100, one of the first generator and the second generator is used to provide power, and the other one is used as a load.

[0088] Optionally, the experimental tooling also includes a first speed-increasing tooling and a second speed-increasing tooling, wherein the first speed-increasing tooling is arranged between the first generator and the connecting device 100, and the second speed-increasing tooling is arranged between the second generator and the connecting device 100, and is used to provide a speed-increasing effect, so that the experimental tooling provided in the embodiment of the present application can test different models of gearboxes, which is conducive to improving versatility.

[0089] Optionally, the experimental tooling further includes a first coupling and a second coupling, wherein the first coupling is connected between the first generator and the first speed-increasing tooling, and the second coupling is connected between the second generator and the second speed-increasing tooling, which is beneficial to improving the reliability of the experimental tooling.

[0090] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A connecting device (100) for an experimental tool, characterized in that: include: A base (10) having a matching through hole; An adapter sleeve (20) is inserted into the matching through hole; A bearing (30) is sleeved on the adapter sleeve (20) and is located between the base (10) and the adapter sleeve (20), and the adapter sleeve (20) and the base (10) are rotatably matched through the bearing (30); The wall of the adapter sleeve (20) is provided with a first manhole (20a) connected to its own inner cavity, and the base (10) is provided with a second manhole, the second manhole being located on a rotation path of the first manhole (20a) rotating with the adapter sleeve (20), so that when the adapter sleeve (20) is in a stationary state, the first manhole (20a) and the second manhole are at least partially arranged opposite to each other in the radial direction (Y) of the adapter sleeve (20).

2. The connection device (100) according to claim 1, characterized in that: The opening area of ​​the second manhole is larger than the opening area of ​​the first manhole (20a).

3. The connection device (100) according to claim 1, characterized in that: The connecting device (100) comprises a connecting flange (40), and the connecting flanges (40) are respectively arranged on both sides of the adapter sleeve (20) along its own axial direction (X).

4. The connection device (100) according to claim 3, characterized in that: The adapter sleeve (20) comprises a main sleeve (21) and connecting parts (22) relatively distributed on both sides of the main sleeve (21) along the axial direction (X), the connecting parts (22) protruding from the main sleeve (21) along the radial direction (Y) toward the side where the inner cavity is located, the bearing (30) is clamped between the connecting part (22) and the base (10), the first manhole (20a) is arranged on the main sleeve (21), and the connecting flange (40) is connected to the connecting part (22).

5. The connection device (100) according to claim 1, characterized in that: The connecting device (100) further comprises an adapter (50), and the adapter (50) is respectively arranged on both sides of the base (10) along the axial direction (X) of the adapter sleeve (20).

6. The connection device (100) according to claim 5, characterized in that: The adapter (50) comprises a first adapter portion (51), an adapter tube (52) and a second adapter portion (53); the first adapter portion (51) is connected to the base (10); the adapter tube (52) has a first adapter end and a second adapter end along the axial direction (X); the first adapter end is connected to the first adapter portion (51); the second adapter end is connected to the second adapter portion (53); and the radial (Y) dimension of the second adapter end is not less than the radial (Y) dimension of the first adapter end.

7. The connection device (100) according to claim 3, characterized in that: The connecting device (100) further comprises a sealing member (60), wherein the sealing member (60) is annular and is arranged between the adapter sleeve (20) and the base (10); The sealing members (60) are arranged in pairs, and in the axial direction (X), the first manhole (20a) and the second manhole are respectively arranged between the sealing members (60) arranged in pairs.

8. The connection device (100) according to claim 7, characterized in that: The sealing member (60) is connected to the adapter sleeve (20) and has a gap with the base (10) in the radial direction (Y) and in the axial direction (X).

9. The connection device (100) according to claim 1, characterized in that: The bearing (30) is one of a roller bearing and a sliding bearing.

10. An experimental tool, characterized in that: include: platform; The connecting device (100) of the experimental tooling according to any one of claims 1 to 9, wherein the connecting device (100) is arranged on the platform.

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