Hand feeling test bench protection structure and tubular column hand feeling test tool

Abstract

The utility model relates to a hand feeling test bench protection structure and a tubular column hand feeling test tool wherein the hand feeling test bench protection structure comprises a torque sensor and a steering wheel detachably connected to one end of the torque sensor, and also comprises a connecting shaft and a coupling. One end of the connecting shaft is detachably connected to the other end of the torque sensor, the other end of the connecting shaft is in interference fit with one end of the coupling, the coupling and the connecting shaft are coaxially arranged, and the other end of the coupling is used for being detachably connected to one end of a tubular column; a torque threshold value a exists between the other end of the connecting shaft and one end of the coupler. According to the hand feeling test bench, the technical problem that in the test process of an existing hand feeling test bench, reverse impact force formed when parts suddenly lose efficacy or the rack is shut down abnormally can damage hands and sensors can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steering systems, in particular to a hand feeling test bench protection structure and a pipe column hand feeling test tool. Background Art

[0002] Research on simulated driving is crucial for the development and testing of driving technology. Prior art typically utilizes a column feel test fixture to subjectively evaluate the reliability and comfort of a steering column. Specifically, the column is fixedly connected to the steering wheel via sensors, and a tester manipulates the steering wheel to perform a steering test. However, if a component or parts of the test fixture suddenly fail, or if the test bench unexpectedly shuts down, the resulting reverse impact force is transmitted back to the sensor and then to the steering wheel, potentially damaging both the operator's hands and the sensor. Utility Model Content

[0003] The utility model aims to solve the technical problem that during the test of the existing feel test bench, the reverse impact force generated when a part suddenly fails or the bench stops abnormally may damage the hands and sensors, and provides a feel test bench protection structure and a pipe column feel test tooling.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] On the one hand, the utility model provides a hand feel test bench protection structure, including a torque sensor and a steering wheel detachably connected to one end of the torque sensor, and also including a connecting shaft and a coupling, one end of the connecting shaft is detachably connected to the other end of the torque sensor, and the other end is interference fit in one end of the coupling, the coupling is coaxially arranged with the connecting shaft, and the other end of the coupling is used to be detachably connected to one end of a pipe column, and there is a torque threshold a between the other end of the connecting shaft and one end of the coupling.

[0006] The beneficial effects of the present invention are as follows: when the test sample is working normally, the human hand drives the steering wheel to rotate left and right, and the torque transmission path is steering wheel-torque sensor-connecting shaft-coupling-column. Since the torque is less than the torque threshold a during normal operation, the connecting shaft and the coupling will not cause slippage, and the steering wheel torque is equal to the test sample column torque, thereby achieving the purpose of driving the column; when the column is abnormal, the column will instantly form a large torque greater than the torque threshold a. At this time, the torque transmission path is column-coupling-connecting shaft. The real-time large torque value is greater than the torque threshold a between the connecting shaft and the coupling. At this time, the connecting shaft and the coupling rotate relative to each other, and the torque transmitted to the connecting shaft is the torque threshold a. The transmission path is connecting shaft-torque sensor-steering wheel-human hand. Finally, the human hand and the torque sensor are only subjected to a torque of the torque threshold a, thereby achieving the effect of protecting the torque sensor and the human, and improving the technical problem that the reverse impact force generated when a part suddenly fails or the bench stops abnormally during the test process of the existing hand feel test bench will damage the human hand and the torque sensor.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, a circular groove is formed at one end of the coupling, and the other end of the connecting shaft is adapted to and interference-fitted with the groove wall of the circular groove.

[0009] The beneficial effect of adopting the above further solution is that an interference fit between the connecting shaft and the coupling is achieved by inserting the other end of the connecting shaft into the circular groove.

[0010] Furthermore, a No. 1 fastening groove connected to the circular groove is provided on the radially outer side wall at one end of the coupling, and one end of the No. 1 fastening groove passes through the side of the coupling close to the connecting shaft to form a No. 1 fastening gap. A No. 1 fastening hole is also provided on the radially outer side wall at one end of the coupling, and the No. 1 fastening hole is used to install a No. 1 fastener passing through the No. 1 fastening gap.

[0011] The beneficial effect of adopting the above-mentioned further scheme is: by opening a No. 1 fastening gap, a No. 1 clamping structure is locally formed at one end of the coupling, and the No. 1 clamping structure is simultaneously connected to the No. 1 fastening groove and the No. 1 fastening gap, and is penetrated by the No. 1 fastening hole, so that when the other end of the connecting shaft is inserted into the circular groove, adaptive deformation can be formed through the No. 1 clamping structure, so that the other end of the connecting shaft can be smoothly inserted into the circular groove, and under the tightening action of the No. 1 fastener, the No. 1 clamping structure shrinks inward and is pressed against the outside of the other end of the connecting shaft, and the No. 1 fastening gap is reduced to form a torque threshold a, and the other end of the connecting shaft and the coupling are tightly connected.

[0012] Furthermore, the coupling includes an intermediate shaft having one end interference fit with the other end of the connecting shaft and a mounting seat having one end detachably connected to the other end of the intermediate shaft. The intermediate shaft and the mounting seat are coaxially arranged, and the other end of the mounting seat is used to be detachably connected to one end of the pipe column.

[0013] The beneficial effect of adopting the above further solution is: utilizing the detachable connection between the intermediate shaft and the mounting seat, the intermediate shaft can be connected and installed separately with the connecting shaft, and the torque threshold between the two can be adjusted to reach the set torque threshold a.

[0014] Furthermore, the coupling also includes an end shaft with one end fixedly connected to the other end of the mounting seat, the mounting seat and the end shaft are coaxially arranged, and a slot is provided at the other end of the end shaft, which is adapted to the pipe column and is used to adapt and allow one end of the pipe column to be inserted.

[0015] The beneficial effect of adopting the above further solution is that the slot is provided to facilitate the insertion of one end of the pipe string, thereby quickly achieving the connection and installation of the pipe string and the coupling.

[0016] Furthermore, a plurality of limiting grooves are circumferentially spaced apart on the groove wall of the slot, and each limiting groove is adapted to the pipe column and is used to adapt to and allow one end side wall of the pipe column to be inserted.

[0017] The beneficial effect of adopting the above further solution is: by limiting the respective limiting grooves, the pipe column with one end inserted into the slot and the end shaft are prevented from rotating relative to each other, thereby ensuring the synchronous coaxial rotation of the pipe column and the coupling.

[0018] Furthermore, a No. 2 fastening groove connected to the slot is opened on the radially outer side wall of the other end of the end shaft, and one end of the No. 2 fastening groove passes through the side of the end shaft away from the connecting shaft to form a No. 2 fastening gap. A No. 2 fastening hole is also opened on the radially outer side wall of the other end of the end shaft, and the No. 2 fastening hole is used to install a No. 2 fastener passing through the No. 2 fastening gap.

[0019] The beneficial effect of adopting the above-mentioned further scheme is: by opening the No. 2 fastening gap, a No. 2 clamping structure is locally formed on the other end of the end shaft. The No. 2 clamping structure is simultaneously connected to the No. 2 fastening groove and the No. 2 fastening gap, and is penetrated by the No. 2 fastening hole, so that when one end of the pipe column is inserted into the slot, adaptive deformation can be formed through the No. 2 clamping structure, so that one end of the pipe column can be smoothly inserted into the slot, and under the tightening action of the No. 2 fastener, the No. 2 clamping structure shrinks inward and is pressed against the outside of one end of the pipe column, and the No. 2 fastening gap is reduced, so that one end of the pipe column and the end shaft are tightly connected.

[0020] Furthermore, the connecting shaft includes a coaxially arranged connecting disk and a circular shaft, the cross-sections of the connecting disk and the circular shaft are circular, the diameter of the connecting disk is larger than the diameter of the circular shaft, the edge end of the connecting disk is detachably connected to the other end of the torque sensor, the middle end is fixedly connected to one end of the circular shaft, and the other end of the circular shaft is interference fit with one end of the coupling.

[0021] The beneficial effect of adopting the above further solution is that the diameter of the connecting disk is larger than the diameter of the circular shaft, so that an installation space for connecting and installing the connecting shaft and the torque sensor is formed at the edge end of the connecting disk, which facilitates quick disassembly and assembly.

[0022] Furthermore, it also includes multiple mounting plates and a connecting plate. The multiple mounting plates are circumferentially spaced apart on the inner side of the steering wheel, and one end of each mounting plate is fixedly connected to the steering wheel, and the other end of each mounting plate is inclined and extends toward the direction of the connecting shaft. The other end of each mounting plate is fixedly connected to the connecting plate, and the connecting plate is detachably connected to one end of the torque sensor.

[0023] The beneficial effect of adopting the above-mentioned further solution is: the torque sensor and the steering wheel are firmly connected by utilizing the connection between the connecting plate and the multiple mounting plates, and the multiple mounting plates are tilted so that the steering wheel forms an axial operating space relative to the torque sensor, so that the torque sensor is relatively far away from the operator, thereby providing protection for the operator.

[0024] On the other hand, the utility model provides a pipe column feel test tool, including a feel test bench protection structure and a pipe column, one end of which is detachably connected to the other end of the coupling of the feel test bench protection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an axonometric drawing of the present utility model;

[0026] Figure 2 This is an axonometric drawing of the local structure of the utility model;

[0027] Figure 3 It is a partial cross-sectional view of the utility model;

[0028] Figure 4 for Figure 3 A partial enlarged view of the mounting base and the end shaft is shown in a separated state;

[0029] Figure 5 This is a partial structural diagram of the utility model, mainly used to show the coupling.

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] 1. Pipe column; 2. Torque sensor; 3. Steering wheel; 31. Mounting plate; 32. Connecting plate; 4. Connecting shaft; 41. Connecting plate; 42. Round shaft; 5. Coupling; 51. Intermediate shaft; 511. Round groove; 512. Fastening groove No. 1; 513. Fastening gap No. 1; 514. Fastening hole No. 1; 52. Mounting seat; 53. End shaft; 531. Slot; 532. Limiting groove; 533. Fastening groove No. 2; 534. Fastening gap No. 2; 535. Fastening hole No. 2. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] On the one hand, the present invention provides a protective structure for a hand feel test bench, as described in detail below.

[0034] Example 1

[0035] like Figure 1 and Figure 2 A hand feel test bench protective structure includes a torque sensor 2 and a steering wheel 3 detachably connected to one end of the torque sensor 2, and also includes a connecting shaft 4 and a coupling 5. One end of the connecting shaft 4 is detachably connected to the other end of the torque sensor 2, and the other end is interference fit in one end of the coupling 5. The coupling 5 is coaxially arranged with the connecting shaft 4, and the other end of the coupling 5 is used to be detachably connected to one end of the pipe column 1. There is a torque threshold a between the other end of the connecting shaft 4 and one end of the coupling 5.

[0036] The beneficial effects of this embodiment are as follows: when the test sample is working normally, the steering wheel 3 is manually driven to rotate left and right, and the torque transmission path is the steering wheel 3-torque sensor 2-connecting shaft 4-coupling 5-column 1. Since the torque is less than the torque threshold a during normal operation, it will not cause the connecting shaft 4 and the coupling 5 to slip, and the steering wheel 3 torque is equal to the test sample column 1 torque, thereby achieving the purpose of driving the column 1; when the column 1 is abnormal, the column 1 will instantly form a large torque greater than the torque threshold a (generally above 150Nm). At this time, the torque transmission path is the column 1-coupling 5-coupling. Connecting shaft 4, the real-time large torque value is greater than the torque threshold a between the connecting shaft 4 and the coupling 5. At this time, the connecting shaft 4 and the coupling 5 rotate relative to each other, and the torque transmitted to the connecting shaft 4 is the torque threshold a. The transmission path is connecting shaft 4-torque sensor 2-steering wheel 3-human hand. Finally, the human hand and the torque sensor 2 are only subjected to a torque of the torque threshold a, thereby achieving the effect of protecting the torque sensor 2 and the person, and improving the technical problem that the reverse impact force generated by the sudden failure of parts or abnormal shutdown of the test bench during the existing tactile test bench test will damage the human hand and the torque sensor 2.

[0037] The torque threshold a can be set to 20 Nm. The torque sensor 2 can be a GB-DTS torque sensor.

[0038] The other end of the connecting shaft 4 has a circular cross section.

[0039] Example 2

[0040] like Figures 2 to 4 On the basis of Example 1, a circular groove 511 is opened at one end of the coupling 5, and the other end of the connecting shaft 4 is adapted and interference-fitted to the groove wall of the circular groove 511.

[0041] The beneficial effect of adopting the preferred solution in the above embodiment is that an interference fit between the connecting shaft 4 and the coupling 5 is achieved by inserting the other end of the connecting shaft 4 into the circular groove 511 .

[0042] The cross section of the circular groove 511 is circular and is coaxial with the coupling 5 .

[0043] Example 3

[0044] like Figures 2 to 4 On the basis of Examples 1 and 2, a No. 1 fastening groove 512 is opened on the radial outer side wall of one end of the coupling 5, which is connected to the circular groove 511. One end of the No. 1 fastening groove 512 passes through the side of the coupling 5 close to the connecting shaft 4 to form a No. 1 fastening gap 513. A No. 1 fastening hole 514 is also opened on the radial outer side wall of one end of the coupling 5. The No. 1 fastening hole 514 is used to install a No. 1 fastener passing through the No. 1 fastening gap 513.

[0045] The beneficial effect of adopting the preferred scheme in the above embodiment is that by opening the No. 1 fastening gap 513, a No. 1 clamping structure is locally formed at one end of the coupling 5, and the No. 1 clamping structure is simultaneously connected to the No. 1 fastening groove 512 and the No. 1 fastening gap 513, and is penetrated by the No. 1 fastening hole 514, so that when the other end of the connecting shaft 4 is inserted into the circular groove 511, adaptive deformation can be formed through the No. 1 clamping structure, so that the other end of the connecting shaft 4 can be smoothly inserted into the circular groove 511, and under the tightening action of the No. 1 fastener, the No. 1 clamping structure forms a tendency to shrink inward and is pressed against the outside of the other end of the connecting shaft 4, and the No. 1 fastening gap 513 is reduced to form a torque threshold a, and the other end of the connecting shaft 4 and the coupling 5 are tightly connected.

[0046] Based on the above embodiment, the No. 1 fastening hole 514 extends through both the No. 1 clamping structure and the radially outer sidewall of one end of the coupling 5. The No. 1 fastener (not shown) can be a bolt. By inserting the bolt into the No. 1 fastening hole 514 and tightening the nut, the No. 1 clamping structure is tightened and pressed against the outer side of the other end of the connecting shaft 4, and the No. 1 fastening gap 513 is reduced. As the No. 1 fastening gap 513 gradually decreases, the torque threshold a formed between the No. 1 clamping structure and the outer wall of the other end of the connecting shaft 4 increases.

[0047] Example 4

[0048] like Figures 2 to 4 On the basis of Examples 1-3, the coupling 5 includes an intermediate shaft 51 whose one end is interference fit with the other end of the connecting shaft 4 and a mounting seat 52 whose one end is detachably connected to the other end of the intermediate shaft 51. The intermediate shaft 51 and the mounting seat 52 are coaxially arranged, and the other end of the mounting seat 52 is used to be detachably connected to one end of the pipe column 1.

[0049] The beneficial effect of adopting the preferred solution in the above embodiment is that the detachable connection between the intermediate shaft 51 and the mounting seat 52 is utilized to facilitate the connection and installation of the intermediate shaft 51 separately to the connecting shaft 4, and to adjust the torque threshold between the two to reach the set torque threshold a.

[0050] A plurality of bolt holes are provided through the edge end of the mounting seat 52, and the plurality of bolt holes are circumferentially spaced apart. A plurality of internal threaded holes are provided on the other side of the intermediate shaft 51 close to the mounting seat 52, and the plurality of internal threaded holes are connected to the bolt holes one by one, so that the connection between the intermediate shaft 51 and the mounting seat 52 is achieved by inserting threads into the plurality of bolt holes and connecting them to the corresponding internal threaded holes.

[0051] Example 5

[0052] like Figures 2 to 5 On the basis of Examples 1-4, the coupling 5 also includes an end shaft 53 whose one end is fixedly connected to the other end of the mounting seat 52. The mounting seat 52 and the end shaft 53 are coaxially arranged. A slot 531 is provided at the other end of the end shaft 53. The slot 531 is adapted to the pipe column 1 and is used to adapt to and allow one end of the pipe column 1 to be inserted.

[0053] The beneficial effect of adopting the preferred solution in the above embodiment is that, by providing the slot 531 , one end of the pipe string 1 is easily inserted, thereby quickly achieving the connection and installation between the pipe string 1 and the coupling 5 .

[0054] Example 6

[0055] like Figure 4 and Figure 5On the basis of embodiments 1-5, a plurality of limiting grooves 532 are circumferentially spaced apart on the groove wall of the slot 531, and each limiting groove 532 is adapted to the pipe column 1 and is used to adapt to and allow one end side wall of the pipe column 1 to be inserted.

[0056] The beneficial effect of adopting the preferred solution in the above embodiment is that the limiting of each limiting groove prevents the pipe column 1 with one end inserted into the slot 531 and the end shaft 53 from rotating relative to each other, thereby ensuring the synchronous coaxial rotation of the pipe column 1 and the coupling 5.

[0057] Based on the above embodiment, the groove walls of the limiting grooves 532 are all arc-shaped to reduce wear.

[0058] The opening of the slot 531 is chamfered to form a guide surface to guide one end of the pipe column 1 to be inserted into the slot 531 .

[0059] Example 7

[0060] like Figures 2 to 5 On the basis of Examples 1-6, a No. 2 fastening groove 533 connected to the slot 531 is opened on the radially outer side wall of the other end of the end shaft 53, and one end of the No. 2 fastening groove 533 passes through the side of the end shaft 53 away from the connecting shaft 4 to form a No. 2 fastening gap 534. A No. 2 fastening hole 535 is also opened on the radially outer side wall of the other end of the end shaft 53. The No. 2 fastening hole 535 is used to install the No. 2 fastener passing through the No. 2 fastening gap 534.

[0061] The beneficial effect of adopting the preferred scheme in the above embodiment is that by opening the No. 2 fastening gap 534, a No. 2 clamping structure is partially formed at the other end of the end shaft 53, and the No. 2 clamping structure is simultaneously connected to the No. 2 fastening groove 533 and the No. 2 fastening gap 534, and is penetrated by the No. 2 fastening hole 535, so that when one end of the pipe column 1 is inserted into the slot 531, adaptive deformation can be formed through the No. 2 clamping structure, so that one end of the pipe column 1 can be smoothly inserted into the slot 531, and under the tightening action of the No. 2 fastener, the No. 2 clamping structure shrinks inward and is pressed against the outside of one end of the pipe column 1, and the No. 2 fastening gap 534 is reduced, so that one end of the pipe column 1 and the end shaft 53 are tightly connected.

[0062] Based on the above embodiment, the second fastening hole 535 extends through both the second clamping structure and the radially outer sidewall of the other end of the end shaft 53. The second fastener (not shown) can be a bolt. By inserting the bolt into the second fastening hole 535 and tightening the nut, the second clamping structure is tightened and pressed against the pipe string 1, and the second fastening gap 534 is reduced. As the second fastening gap 534 gradually decreases, the second clamping structure gradually presses against the pipe string 1.

[0063] A countersunk hole is provided at the opening of the No. 2 fastening hole 535 which passes through the No. 2 clamping structure or the radially outer side wall of the other end of the end shaft 53 to form a planar step for the head of the No. 2 fastener to be placed.

[0064] Example 8

[0065] like Figure 1 and Figure 2 On the basis of Examples 1-7, the connecting shaft 4 includes a coaxially arranged connecting disk 41 and a circular shaft 42. The cross-sections of the connecting disk 41 and the circular shaft 42 are circular. The diameter of the connecting disk 41 is larger than the diameter of the circular shaft 42. The edge end of the connecting disk 41 can be detachably connected to the other end of the torque sensor 2, and the middle end is fixedly connected to one end of the circular shaft 42. The other end of the circular shaft 42 is interference fit with one end of the coupling 5.

[0066] The beneficial effect of adopting the preferred solution in the above embodiment is that the diameter of the connecting disk 41 is larger than the diameter of the circular shaft 42, which facilitates the formation of an installation space at the edge end of the connecting disk 41 for connecting and installing the connecting shaft 4 and the torque sensor 2, so as to facilitate quick disassembly and assembly.

[0067] Based on the above embodiment, a plurality of bolt holes are formed through the edge of the connecting plate 41 , and the plurality of bolt holes are evenly distributed on the edge of the connecting plate 41 for bolts to pass through, and the bolts are threadedly connected to the other end of the torque sensor 2 .

[0068] Example 9

[0069] like Figure 1 and Figure 3 On the basis of Examples 1-8, it further includes multiple mounting plates 31 and a connecting plate 32. The multiple mounting plates 31 are circumferentially spaced on the inner side of the steering wheel 3, and one end of each mounting plate 31 is fixedly connected to the steering wheel 3, and the other end of each mounting plate 31 is inclined and extended toward the direction of the connecting shaft 4. The other end of each mounting plate 31 is fixedly connected to the connecting plate 32, and the connecting plate 32 is detachably connected to one end of the torque sensor 2.

[0070] The beneficial effect of adopting the preferred solution in the above embodiment is that the torque sensor 2 and the steering wheel 3 are firmly connected by utilizing the connection between the connecting plate 32 and the multiple mounting plates 31, and the multiple mounting plates 31 are tilted so that the steering wheel 3 forms an axial operating space relative to the torque sensor 2, so that the torque sensor 2 is relatively far away from the operator, thereby providing protection for the operator.

[0071] Based on the above embodiment, the connecting plate 32 is annular and has multiple bolt holes formed through the inner end of the connecting plate 32. The multiple bolt holes are evenly distributed along the edge of the connecting plate 32 for the passage of bolts, which are threadedly connected to one end of the torque sensor 2.

[0072] On the other hand, the present invention provides a pipe string feel testing tool, which is described in detail below.

[0073] Example 10

[0074] A pipe string feel test tool includes a feel test bench protective structure as described in Examples 1-9, and also includes a pipe string 1, one end of which is detachably connected to the other end of a coupling 5 of the feel test bench protective structure.

[0075] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0077] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0078] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0080] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A hand feel test bench protective structure, comprising a torque sensor (2) and a steering wheel (3) detachably connected to one end of the torque sensor (2), characterized in that: The invention also includes a connecting shaft (4) and a coupling (5), one end of the connecting shaft (4) is detachably connected to the other end of the torque sensor (2), and the other end is interference-fitted to one end of the coupling (5), the coupling (5) and the connecting shaft (4) are coaxially arranged, and the other end of the coupling (5) is used for detachably connecting to one end of the pipe column (1), and a torque threshold a is provided between the other end of the connecting shaft (4) and one end of the coupling (5).

2. A hand feel test bench protection structure according to claim 1, characterized in that: A circular groove (511) is provided at one end of the coupling (5), and the other end of the connecting shaft (4) is adapted to and interference-fitted with the groove wall of the circular groove (511).

3. A hand feel test bench protection structure according to claim 2, characterized in that: A No. 1 fastening groove (512) communicating with the circular groove (511) is provided on the radially outer side wall of one end of the coupling (5); one end of the No. 1 fastening groove (512) passes through the side of the coupling (5) close to the connecting shaft (4) to form a No. 1 fastening gap (513); a No. 1 fastening hole (514) is also provided on the radially outer side wall of one end of the coupling (5); the No. 1 fastening hole (514) is used to install a No. 1 fastener passing through the No. 1 fastening gap (513).

4. The hand feel test bench protection structure according to claim 1, characterized in that: The coupling (5) comprises an intermediate shaft (51) whose one end is interference-fitted with the other end of the connecting shaft (4) and a mounting seat (52) whose one end is detachably connected to the other end of the intermediate shaft (51); the intermediate shaft (51) and the mounting seat (52) are coaxially arranged, and the other end of the mounting seat (52) is used for detachably connecting to one end of the pipe column (1).

5. A hand feel test bench protection structure according to claim 4, characterized in that: The coupling (5) further comprises an end shaft (53) having one end fixedly connected to the other end of the mounting seat (52), the mounting seat (52) and the end shaft (53) being coaxially arranged, and a slot (531) being provided at the other end of the end shaft (53), the slot (531) being adapted to the pipe column (1) and used for adapting to and allowing one end of the pipe column (1) to be inserted.

6. A hand feel test bench protection structure according to claim 5, characterized in that: The slot wall of the slot (531) is provided with a plurality of limiting grooves (532) spaced apart in the circumferential direction, and each limiting groove (532) is adapted to the pipe column (1) and is used to adapt to and allow one end side wall of the pipe column (1) to be inserted.

7. The hand feel test bench protection structure according to claim 5, characterized in that: A No. 2 fastening groove (533) connected to the slot (531) is provided on the radially outer side wall of the other end of the end shaft (53), and one end of the No. 2 fastening groove (533) passes through the side of the end shaft (53) away from the connecting shaft (4) to form a No. 2 fastening gap (534). A No. 2 fastening hole (535) is also provided on the radially outer side wall of the other end of the end shaft (53), and the No. 2 fastening hole (535) is used to install a No. 2 fastener passing through the No. 2 fastening gap (534).

8. A hand feel test bench protective structure according to any one of claims 1 to 7, characterized in that: The connecting shaft (4) comprises a coaxially arranged connecting disk (41) and a circular shaft (42); the cross-sections of the connecting disk (41) and the circular shaft (42) are circular; the diameter of the connecting disk (41) is larger than the diameter of the circular shaft (42); the edge end of the connecting disk (41) is detachably connected to the other end of the torque sensor (2); the middle end is fixedly connected to one end of the circular shaft (42); and the other end of the circular shaft (42) is interference-fitted to one end of the coupling (5).

9. A hand feel test bench protective structure according to any one of claims 1 to 7, characterized in that: The invention also includes a plurality of mounting plates (31) and a connecting plate (32). The plurality of mounting plates (31) are circumferentially spaced and arranged on the inner side of the steering wheel (3). One end of each mounting plate is fixedly connected to the steering wheel (3), and the other end of each mounting plate extends obliquely toward the direction of the connecting shaft (4). The other end of each mounting plate (31) is fixedly connected to the connecting plate (32). The connecting plate (32) is detachably connected to one end of the torque sensor (2).

10. A pipe string feel testing tool, characterized in that: It comprises a tactile test bench protective structure as described in any one of claims 1 to 9, and also comprises a pipe column (1), one end of which is detachably connected to the other end of the coupling (5) of the tactile test bench protective structure.

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