The table locking device of the swing test bench and the swing test bench

Abstract

This invention relates to a table locking device for a swing test bench and the swing test bench itself. The table locking device includes a guide seat fixed to a swing base, a sliding latch mounted on the guide seat, and an inclined support surface on the sliding latch. The table locking device also includes a locking block hinged to the swing body, the locking block being located in front of the extension / retraction direction of the sliding latch, the hinge axis of the locking block being parallel to the swing axis of the swing body and perpendicular to the guide direction of the sliding latch. The locking block has an adapting support surface that fits snugly against the inclined support surface. The adapting support surface is used to allow the locking block to rotate around its own hinge axis when pushed by the inclined support surface, and to allow the locking block to move up and down to tilt the swing body while the adapting support surface and the inclined support surface remain in contact. The table locking device includes a driving device for driving the sliding latch to extend and retract and has an extension / retraction locking function, thereby locking the tilt angle of the swing body.

Description

Technical Field

[0001] This invention belongs to the technical field of swing test benches, specifically relating to a table locking device for a swing test bench and a swing test bench. Background Technology

[0002] A rolling test bench is a large-scale physical simulation test device that can simulate the rolling motion of a ship. It is also a comprehensive test device integrating mechanics, hydraulics, electrical control, measurement, and computer systems. The rolling test bench mainly has three rotational degrees of freedom: roll, pitch, and bow. In recent years, with the increasing demand for high-sea-state environment adaptability tests on large-scale test equipment, large rolling test benches can provide a simulated ship rolling environment for these test devices. For example, a rolling bench is disclosed in Chinese utility model patent with authorization announcement number CN210774755U.

[0003] Existing large-scale swing test benches typically include a transverse body, a longitudinal body, and a swing test bench mounting base. The longitudinal body has a frame structure and is hinged to the swing test bench mounting base, while the transverse body is hinged to the longitudinal body. Between the transverse and longitudinal bodies, the transverse body is the swing body of the longitudinal body, and the longitudinal body is the swing seat of the transverse body. Similarly, between the longitudinal body and the swing test bench mounting base, the longitudinal body is the swing body of the swing test bench mounting base, and the swing test bench mounting base is the swing seat of the longitudinal body. Each swing body has symmetrically arranged table locking devices on both sides perpendicular to its own swing axis, and these table locking devices are located between the swing body and the swing seat, thereby locking the tilt angle of each swing body.

[0004] However, the tilt angle of the existing gyratory test bench is relatively limited, and it can only be locked at the 0° position, for example, when the gyratory body is horizontal. In order to provide the test equipment with different simulated ship hull gyratory environments and ensure that the test equipment can obtain relatively reliable test data before being deployed on the ship, it is necessary for the gyratory body and gyratory seat to be able to be locked at different tilt angles. Summary of the Invention

[0005] The purpose of this invention is to provide a table locking device for a swing test bench that enables adjustable tilt angle of the swing body and locks the swing body; another purpose of this invention is to provide a swing test bench with a table locking device that enables adjustable tilt angle of the table and locks the swing body.

[0006] To achieve the above objectives, the platform locking device of the swing test bench in this invention adopts the following technical solution:

[0007] The table locking device of the swing test bench includes a guide seat for fixing to the swing base. The guide seat has a sliding latch for extending and retracting perpendicular to the swing axis of the swing body rotatably mounted on the corresponding swing base. The front end of the sliding latch has an inclined support surface that is inclined in the vertical direction. The table locking device also includes a locking block for hinged to the swing body. The locking block is positioned in front of the sliding latch in the extension / retraction direction and has a hinge axis parallel to the swing axis of the swing body and perpendicular to the extension / retraction direction of the sliding latch. The locking block has an adapting support surface for fitting against the inclined support surface. The adapting support surface allows the locking block to rotate around its own hinge axis when pushed forward by the inclined support surface, and to move up and down to tilt the swing body while the adapting support surface and the inclined support surface remain in contact. The table locking device also includes a driving device for driving the sliding latch to extend and retract and has a telescopic locking function, thereby locking the tilt angle of the swing body.

[0008] The beneficial effects of the above technical solution are as follows: By hinged the locking block in the table locking device to the rocker body, and making the hinge axis of the locking block parallel to the rocker body's rocker axis and perpendicular to the guiding direction of the sliding latch, when the driving device drives the sliding latch mounted on the guide seat to extend and retract in a direction perpendicular to the rocker body's rocker axis, the inclined support surface on the sliding latch can push against the matching support surface on the locking block. This can both raise the rocker body hinged to the locking block and make the rocker body tilt at a certain angle, and at the same time, the locking block can maintain the surface contact between the inclined support surface and the matching support surface by rotating around its own hinge axis, reducing the contact stress between the sliding latch and the locking block and avoiding damage to both. In addition, since the tilt angle of the rocker body is related to the extension amount of the sliding latch, and since the driving device has a telescopic locking function, the extension amount of the sliding latch can be controlled by the driving device. Therefore, by controlling the extension amount of the sliding latch, the tilt angle of the rocker body can be controlled, and the telescopic locking function of the driving device can also lock the tilt angle of the rocker body to fix it.

[0009] Furthermore, the locking block is provided with a swing limiting structure, which is used to cooperate with the matching limiting structure on the swing body to limit the swing range of the locking block, ensuring that the inclined support surface can contact the matching support surface when the sliding lock tongue is extended.

[0010] The beneficial effects of the above technical solution are as follows: by cooperating with the swing limiting structure on the locking block and the matching limiting structure on the rocker body, the swing range of the locking block hinged to the rocker body can be limited. Thus, when the inclined support surface pushes against the matching support surface, the swing limiting structure can further ensure the surface-to-surface contact between the inclined support surface and the matching support surface, avoiding the inability to ensure surface-to-surface contact between the inclined support surface and the matching support surface due to the excessive rotation angle of the locking block.

[0011] Furthermore, the swing limiting structure is a boss or groove provided on the locking block, and the matching limiting structure is a corresponding groove or boss. The upper and lower sidewalls of the groove and the matching boss have an active interval for limiting the swing range.

[0012] The beneficial effects of the above technical solution are as follows: by setting a groove and a boss that matches the groove, and by making the upper and lower sidewalls of the groove and the matching boss have an active interval for limiting the swing range of the locking block, it is possible not only to limit the swing range of the locking block, but also to simplify the swing limiting structure, making its structure more compact and eliminating the need for separate parts.

[0013] Furthermore, the locking block includes a hinge shaft for hinged to the rocker seat, and the table locking device of the rocker test bench also includes a stop block for fixing on the rocker seat, the stop block for the hinge shaft to pass through; the end of the hinge shaft is exposed on the side of the stop block, and a pin is fixed on the end face of the end of the hinge shaft, the pin being used to limit the engagement with the stop block along the axial direction of the hinge shaft.

[0014] The beneficial effect of the above technical solution is that the pin can limit the movement of the locking block along the hinge axis, prevent the locking block from moving out of the stop block, and ensure the stability of the hinge connection between the locking block and the rocker seat.

[0015] Furthermore, the driving device includes a lead screw, and the sliding lock tongue is provided with a transmission thread that engages with the lead screw to drive the sliding lock tongue to extend and retract. The lead screw and the transmission thread constitute a lead screw and nut mechanism.

[0016] The beneficial effects of the above technical solution are as follows: using a lead screw and nut mechanism as the driving device not only facilitates the driving of the sliding lock tongue through the lead screw and nut mechanism, but also enables the rocker body to be supported and locked after the lead screw and nut mechanism stops moving. This simplifies the structure of the driving device and makes full use of the self-locking characteristics of the lead screw and nut mechanism.

[0017] Furthermore, the sliding locking tongue is provided with a mating hole for the transmission screw to extend into; the table locking device also includes a threaded sleeve for threaded engagement with the transmission screw; the end of the threaded sleeve is provided with a connecting flange for fixed connection with the end of the mating hole, the threaded sleeve is located inside the mating hole, and there is a gap between the outer circumferential surface of the threaded sleeve and the inner wall of the mating hole; or, the threaded sleeve is exposed outside the mating hole, and the radial outer side of the threaded sleeve has a deflection space for the threaded sleeve to deflect.

[0018] The beneficial effects of the above technical solution are as follows: By using the internal thread of the threaded sleeve connected to the end of the mating hole as the transmission thread that mates with the transmission screw thread, the sliding locking tongue can achieve transmission with the transmission screw through the internal thread of the threaded sleeve. Simultaneously, because there is a radial gap between the outer circumference of the threaded sleeve and the inner wall of the mating hole, the radial force on the transmission screw can be reduced by the oscillation of the threaded sleeve within this gap, improving the stress condition of the transmission screw and ensuring the reliability of the table locking device. Furthermore, the connecting flange located at the end of the threaded sleeve ensures the connection strength between the threaded sleeve and the sliding locking tongue, and also allows the transmission force on the transmission screw to be transferred to the sliding locking tongue, enabling the sliding locking tongue to extend and retract along the guide seat.

[0019] Furthermore, the sliding locking tongue is provided with a mating hole for the transmission screw to extend into; the table locking device also includes a threaded sleeve for threaded engagement with the transmission screw; the axial middle part of the threaded sleeve is provided with a connecting flange for fixed connection with the end of the mating hole; the threaded sleeve has a portion located inside the mating hole and another portion located outside the mating hole, the outer periphery of the portion of the threaded sleeve located inside the mating hole is radially spaced from the inner wall of the mating hole, and the radially outer side of the portion of the threaded sleeve located outside the mating hole has a deflection space for the threaded sleeve to deflect.

[0020] The beneficial effects of the above technical solution are as follows: It weakens the radial force on the transmission screw by both the swinging motion of the portion of the threaded sleeve inside the mating hole and the swinging motion of the portion of the threaded sleeve outside the mating hole. This further improves the stress condition of the transmission screw and ensures the reliability of the table locking device. Furthermore, the portion of the threaded sleeve located inside and outside the mating hole extends the thread engagement length between the transmission thread and the transmission screw, increasing the screw's load-bearing capacity and ensuring its transmission stability.

[0021] Furthermore, the table locking device of the swing test bench also includes an extension detection mechanism, which is disposed on the guide seat corresponding to the sliding lock tongue. The extension detection mechanism is used to detect the extension of the sliding lock tongue.

[0022] The beneficial effect of the above technical solution is that, since the tilt angle of the rocker body is related to the elongation of the sliding latch, the tilt angle of the rocker body can be indirectly determined by measuring the elongation of the sliding latch, thereby achieving precise control of the tilt angle of the rocker body.

[0023] Furthermore, the telescopic measurement mechanism includes a first sensing position corresponding to the horizontal swing position of the rocker body and a second sensing position corresponding to the desired deflection angle.

[0024] The beneficial effects of the above technical solution are that, while ensuring the control of the special tilt angle of the rocker body, it also simplifies the arrangement of the telescopic detection mechanism and optimizes the structure of the entire platform locking device.

[0025] To achieve the above objectives, the swing test bench of this invention adopts the following technical solution:

[0026] A swing test bench includes a swing base and a swing body hinged to the swing base. The swing body has a horizontal swing axis. The swing test bench also includes at least two table locking devices arranged on both sides perpendicular to the swing axis of the swing body. Each table locking device includes a guide seat fixed to the swing base, and a sliding locking tongue that extends and retracts perpendicular to the swing axis of the swing body rotatably mounted on the corresponding swing base is guided on the guide seat. The front end of the sliding locking tongue has an inclined support surface that is inclined in the vertical direction. The table locking device also includes a locking block hinged to the swing body, the locking block being used for setting... The locking block, positioned in front of the sliding latch in the direction of extension and retraction, has a hinge axis parallel to the swing axis of the rocker body and perpendicular to the direction of extension and retraction of the sliding latch. The locking block also has an adapting support surface for fitting against the inclined support surface. This adapting support surface allows the locking block to rotate around its own hinge axis when pushed forward by the inclined support surface, and to move up and down to tilt the rocker body while the adapting support surface and the inclined support surface remain in contact. The table locking device of the rocker test bench also includes a driving device for driving the sliding latch to extend and retract and has a telescopic locking function, thereby locking the tilt angle of the rocker body.

[0027] The beneficial effects of the above technical solution are as follows: The swing test bench of the present invention hinges the locking block in the table locking device to the swing body, and makes the hinge axis of the locking block parallel to the swing axis of the swing body and perpendicular to the guide direction of the sliding latch. Thus, when the drive device drives the sliding latch mounted on the guide seat to extend and retract in a direction perpendicular to the swing axis of the swing body, the inclined support surface on the sliding latch pushes against the matching support surface on the locking block. This not only raises the swing body hinged to the locking block and makes the swing body tilt at a certain angle, but also allows the locking block to maintain surface contact between the inclined support surface and the matching support surface by rotating around its own hinge axis, reducing the contact stress between the sliding latch and the locking block and avoiding damage to both. Furthermore, since the tilt angle of the swing body is related to the extension amount of the sliding latch, and since the drive device has a telescopic locking function, the extension amount of the sliding latch can be controlled by the drive device. Therefore, by controlling the extension amount of the sliding latch, the tilt angle of the swing body can be controlled, and the telescopic locking function of the drive device can also lock the tilt angle of the swing body to fix it.

[0028] Furthermore, the locking block is provided with a swing limiting structure, which is used to cooperate with the matching limiting structure on the swing body to limit the swing range of the locking block, ensuring that the inclined support surface can contact the matching support surface when the sliding lock tongue is extended.

[0029] The beneficial effects of the above technical solution are as follows: by cooperating with the swing limiting structure on the locking block and the matching limiting structure on the rocker body, the swing range of the locking block hinged to the rocker body can be limited. Thus, when the inclined support surface pushes against the matching support surface, the swing limiting structure can further ensure the surface-to-surface contact between the inclined support surface and the matching support surface, avoiding the inability to ensure surface-to-surface contact between the inclined support surface and the matching support surface due to the excessive rotation angle of the locking block.

[0030] Furthermore, the swing limiting structure is a boss or groove provided on the locking block, and the matching limiting structure is a corresponding groove or boss. The upper and lower sidewalls of the groove and the matching boss have an active interval for limiting the swing range.

[0031] The beneficial effects of the above technical solution are as follows: by setting a groove and a boss that matches the groove, and by making the upper and lower sidewalls of the groove and the matching boss have an active interval for limiting the swing range of the locking block, it is possible not only to limit the swing range of the locking block, but also to simplify the swing limiting structure, making its structure more compact and eliminating the need for separate parts.

[0032] Furthermore, the locking block includes a hinge shaft for hinged to the rocker seat, and the table locking device of the rocker test bench also includes a stop block fixed on the rocker seat, the stop block for the hinge shaft to pass through; the end of the hinge shaft is exposed on the side of the stop block, and a pin is fixed on the end face of the end of the hinge shaft, the pin being used to limit the engagement with the stop block along the axial direction of the hinge shaft.

[0033] The beneficial effect of the above technical solution is that the pin can limit the movement of the locking block along the hinge axis, prevent the locking block from moving out of the stop block, and ensure the stability of the hinge connection between the locking block and the rocker seat.

[0034] Furthermore, the driving device includes a lead screw, and the sliding lock tongue is provided with a transmission thread that engages with the lead screw to drive the sliding lock tongue to extend and retract. The lead screw and the transmission thread constitute a lead screw and nut mechanism.

[0035] The beneficial effects of the above technical solution are as follows: using a lead screw and nut mechanism as the driving device not only facilitates the driving of the sliding lock tongue through the lead screw and nut mechanism, but also enables the rocker body to be supported and locked after the lead screw and nut mechanism stops moving. This simplifies the structure of the driving device and makes full use of the self-locking characteristics of the lead screw and nut mechanism.

[0036] Furthermore, the sliding locking tongue is provided with a mating hole for the transmission screw to extend into; the table locking device of the swing test bench also includes a threaded sleeve for threaded engagement with the transmission screw; the end of the threaded sleeve is provided with a connecting flange for fixed connection with the end of the mating hole, the threaded sleeve is located inside the mating hole, and there is a gap between the outer peripheral surface of the threaded sleeve and the inner wall of the mating hole; or, the threaded sleeve is exposed outside the mating hole, and the radial outer side of the threaded sleeve has a deflection space for the threaded sleeve to deflect.

[0037] The beneficial effects of the above technical solution are as follows: By using the internal thread of the threaded sleeve connected to the end of the mating hole as the transmission thread that mates with the transmission screw thread, the sliding locking tongue can achieve transmission with the transmission screw through the internal thread of the threaded sleeve. Simultaneously, because there is a radial gap between the outer circumference of the threaded sleeve and the inner wall of the mating hole, the radial force on the transmission screw can be reduced by the oscillation of the threaded sleeve within this gap, improving the stress condition of the transmission screw and ensuring the reliability of the table locking device. Furthermore, the connecting flange located at the end of the threaded sleeve ensures the connection strength between the threaded sleeve and the sliding locking tongue, and also allows the transmission force on the transmission screw to be transferred to the sliding locking tongue, enabling the sliding locking tongue to extend and retract along the guide seat.

[0038] Furthermore, the sliding locking tongue is provided with a mating hole for the transmission screw to extend into; the table locking device of the swing test bench also includes a threaded sleeve for threaded engagement with the transmission screw; the axial middle part of the threaded sleeve is provided with a connecting flange for fixed connection with the end of the mating hole; the threaded sleeve has a portion located inside the mating hole and another portion located outside the mating hole, the outer periphery of the portion of the threaded sleeve located inside the mating hole is radially spaced from the inner wall of the mating hole, and the radially outer side of the portion of the threaded sleeve located outside the mating hole has a deflection space for the threaded sleeve to deflect.

[0039] The beneficial effects of the above technical solution are as follows: It weakens the radial force on the transmission screw by both the swinging motion of the portion of the threaded sleeve inside the mating hole and the swinging motion of the portion of the threaded sleeve outside the mating hole. This further improves the stress condition of the transmission screw and ensures the reliability of the table locking device. Furthermore, the portion of the threaded sleeve located inside and outside the mating hole extends the thread engagement length between the transmission thread and the transmission screw, increasing the screw's load-bearing capacity and ensuring its transmission stability.

[0040] Furthermore, the table locking device of the swing test bench also includes an extension detection mechanism, which is disposed on the guide seat corresponding to the sliding lock tongue. The extension detection mechanism is used to detect the extension of the sliding lock tongue.

[0041] The beneficial effect of the above technical solution is that, since the tilt angle of the rocker body is related to the elongation of the sliding latch, the tilt angle of the rocker body can be indirectly determined by measuring the elongation of the sliding latch, thereby achieving precise control of the tilt angle of the rocker body.

[0042] Furthermore, the telescopic measurement mechanism includes a first sensing position corresponding to the horizontal swing position of the rocker body and a second sensing position corresponding to the desired deflection angle.

[0043] The beneficial effects of the above technical solution are that, while ensuring the control of the special tilt angle of the rocker body, it also simplifies the arrangement of the telescopic detection mechanism and optimizes the structure of the entire platform locking device. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the swing test bench in this invention;

[0045] Figure 2 This is a schematic diagram of the platform locking device of the swing test bench in this invention;

[0046] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0047] Figure 4 This is a perspective view of the guide seat and sliding locking tongue engaging in the table locking device of the swing test bench of the present invention;

[0048] Figure 5 yes Figure 4 A bottom view;

[0049] Figure 6 This is a diagram showing the fit and connection of the swing limiting structure in the table locking device of the swing test bench of the present invention.

[0050] Figure 7 This is a perspective view of the inclined block in the platform locking device of the swing test bench of the present invention;

[0051] Figure 8 This is a structural diagram of the stop block in the table locking device of the swing test bench of the present invention;

[0052] Figure 9 This is a state diagram of the platform locking device of the swing test bench in the present invention under extreme working conditions;

[0053] Figure 10 This is a diagram showing the state of the sliding latch and locking block in the table locking device of the swing test bench of the present invention when the swing body is at 0 degrees.

[0054] Figure 11 This is a diagram showing the state of the sliding latch in the retracted position of the table locking device of the swing test bench of the present invention.

[0055] In the diagram: 1000, horizontal rocker; 2000, vertical rocker; 2010, vertical rocker hinge shaft; 3000, table locking device; 3010, locking block; 3011, adapting support surface; 3012, upright block; 3013, locking block hinge shaft; 3014, hinge shaft slot; 3015, boss; 3020, guide seat; 3021, guide seat flange; 3030, sliding latch; 3031, inclined support surface; 3032, mating hole; 30 40. Threaded sleeve; 3041. Connecting flange; 3050. Drive screw; 3060. Sensor mounting base; 3061. First sensing position; 3062. Second sensing position; 3063. Third sensing position; 3070. Bracket; 3080. Scale; 3090. Sensing block; 3100. Stop block; 3110. Through hole; 3120. Groove; 3130. Stop block slot; 3200. Reducer; 3300. Motor; 3400. Pin. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0057] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0058] It should be noted that, in specific embodiments of the present invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the use of phrases such as "comprising a…" to define an element does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0059] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0060] In the description of this invention, unless otherwise explicitly specified and limited, the term "provided with" should be interpreted broadly. For example, the object "provided with" can be a part of the body, or it can be separately arranged from the body and connected to the body. This connection can be a detachable connection or a non-detachable connection. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.

[0061] The present invention will be further described in detail below with reference to the embodiments.

[0062] Example 1 of the swing test bench in this invention:

[0063] like Figure 1 As shown, the rocking test bench includes a horizontal rocking body 1000, a vertical rocking body 2000, and a test bench mounting base (not shown in the figure). The vertical rocking body 2000 has a frame structure and is hinged to the test bench mounting base via vertical rocking hinge shafts 2010 on both sides. Between the vertical rocking body 2000 and the test bench mounting base, the test bench mounting base serves as the rocking seat for the vertical rocking body 2000, and the vertical rocking body 2000 serves as the rocking body of the test bench mounting base. The horizontal rocking body 1000 has a plate structure and is hinged to the vertical rocking body 2000 via hinge shafts on both sides. The rocking axis of the horizontal rocking body 1000 is perpendicular to the rocking axis of the vertical rocking body 2000. Between the horizontal rocking body 1000 and the vertical rocking body 2000, the vertical rocking body 2000 serves as the rocking seat for the horizontal rocking body 1000, and the horizontal rocking body 1000 serves as the rocking body of the vertical rocking body 2000.

[0064] like Figure 1 As shown, each rocker body has four platform locking devices 3000 symmetrically arranged in pairs on both sides perpendicular to its own rocking axis, and each platform locking device 3000 is located between the rocker body and the rocker base. Among them, as... Figure 2 , Figure 4 and Figure 5 As shown, the table locking device 3000 includes a guide seat 3020, on which a guide seat flange 3021 is provided. The guide seat 3020 is fixedly installed on the bottom surface of the rocker seat through the guide seat flange 3021. A sliding locking tongue 3030 is guided and mounted on the guide seat 3020 for extending and retracting perpendicular to the rocker axis of the rocker body rotatably mounted on the corresponding rocker seat. The front end of the sliding locking tongue 3030 is provided with an inclined support surface 3031 that gradually slopes downward from back to front along the front-rear extension direction of the sliding locking tongue 3030. The rear end of the sliding locking tongue 3030 is provided with a mating hole 3032 extending along its front-rear extension direction.

[0065] The tabletop locking device 3000 also includes a drive mechanism, such as... Figure 2As shown, the drive device includes a transmission screw 3050, which is driven to rotate by a motor 3300 and a reducer 3200 mounted on a rocker seat, and the transmission screw 3050 extends forward into the mating hole 3032. The tabletop locking device 3000 also includes a threaded sleeve 3040 with internal threads. The end of the threaded sleeve 3040 is provided with a connecting flange 3041 for fixed connection with the end of the mating hole 3032. Thus, the threaded sleeve 3040 is installed at the end of the mating hole 3032 through the fixed connection of the connecting flange 3041, and the threaded sleeve 3040 is located inside the mating hole 3032. The internal thread of the threaded sleeve 3040 and the threaded engagement of the transmission screw 3050 form a transmission thread. In this way, through the transmission engagement of the threaded sleeve 3040 and the transmission screw 3050, the rotation of the transmission screw 3050 can be converted into the direct movement of the sliding locking tongue 3030, and the sliding locking tongue 3030 is driven to move from back to front. The threaded sleeve 3040 and the transmission screw 3050 constitute a screw-nut mechanism.

[0066] like Figure 3 As shown, there is a gap between the outer circumferential surface of the threaded sleeve 3040 and the inner wall of the mating hole 3032. This allows the threaded sleeve 3040 to oscillate within this gap, reducing the radial force on the transmission screw 3050 and improving its stress state, thus ensuring the reliability of the table locking device. Figure 9 As shown, when the sliding latch 3030 is in the extreme position, the extension length L1 of the sliding latch 3030 must be less than the length of the sliding latch 3030 in the guide seat 3020. This can ensure the radial swing amplitude of the sliding latch 3030, thereby reducing the radial force on the transmission screw 3050 when the sliding latch 3030 is in the extreme position.

[0067] like Figure 2 ,and Figure 7As shown, the tabletop locking device 3000 also includes a locking block 3010 for being disposed on the front side of the sliding latch 3030 in the extension direction. The locking block 3010 is provided with a locking block hinge shaft 3013. The locking block 3010 is hinged to the bottom surface of the rocker body through the locking block hinge shaft 3013. The hinge axis of the locking block 3010 is parallel to the rocker axis of the rocker body and perpendicular to the guide direction of the sliding latch 3030. The locking block 3010 has an adapter support surface 3011 for fitting against the inclined support surface 3031. The adapter support surface 3011 gradually slopes downward from back to front along the forward and backward extension direction of the sliding latch 3030. Thus, when the sliding latch 3030 extends from back to front and pushes the inclined support surface 3031 against the adapter support surface 3011, the locking block 3010 will rotate up and down around its own hinge axis, i.e., clockwise or counterclockwise. While the adapter support surface 3011 and the inclined support surface 3031 remain in contact, the locking block 3010 is raised, causing the rocker body to tilt at a certain angle. In addition, since the extension amount of the sliding latch 3030 can be locked after the aforementioned screw and nut mechanism stops operating, the tilt angle of the rocker body can also be locked. That is, the drive device of the table locking device 3000 has a telescopic locking function.

[0068] like Figure 6 and Figure 7 As shown, the locking block 3010 has a vertical plate located at an end perpendicular to its own hinge axis, i.e., the adapting support surface 3011 is perpendicular to the vertical plate. The locking block hinge shaft 3013 of the locking block 3010 is located on the opposite side of the vertical plate relative to the adapting support surface 3011. Below the locking block hinge shaft 3013, there are two bosses 3015 in the same horizontal direction, and the upper and lower sides of the two bosses 3015 are both arc surfaces. Figure 6 and Figure 8As shown, a stop block 3100 is fixed on the bottom surface of the rocker body. The stop block 3100 has a through hole 3110 for the locking block hinge shaft 3013 to pass through. The stop block 3100 also has two grooves 3120 that are adapted to the two bosses 3015 respectively. That is, the upper and lower side walls of the two grooves 3120 are also arc surfaces. The boss 3015 can swing within the groove 3120, and there is an active gap between the upper and lower sidewalls of the groove 3120 and the matching boss 3015 to limit the swing range of the boss 3015. That is, the swing range of the boss 3015 within the groove 3120 is limited. By limiting the swing range of the boss 3015 through the groove 3120, the swing range of the locking block 3010 can be further limited. That is, the boss 3015 constitutes the swing limiting structure on the locking block 3010, and the groove 3120 constitutes the matching limiting structure on the rocker body where the locking block 3010 is located. In this way, when the inclined support surface 3031 pushes against the matching support surface 3011, the surface contact between the inclined support surface 3031 and the matching support surface 3011 can be further ensured, avoiding damage to the locking block 3010 and the sliding lock tongue 3030 due to line contact.

[0069] In addition, such as Figure 6 As shown, the end of the locking block hinge shaft 3013 is exposed on the side of the stop block 3100. The table locking device 3000 also includes a pin 3400, which is a rigid member and includes a column part and a cantilever part. The column part is used to be embedded in the end opening of the locking block hinge shaft 3013 and welded to the end of the locking block hinge shaft 3013. The end of the locking block hinge shaft 3013 is provided with a hinge shaft groove 3014 to avoid the cantilever part of the pin 3400. The stop block 3100 is provided with a stop block groove 3130 on the corresponding side. The cantilever part of the pin 3400 extends into the stop block groove 3130 and there is a gap between the stop block groove 3130 and the pin 3400. Thus, by swinging the pin 3400 within the gap between the stop block groove 3130 and the pin 3400, the swing range of the locking block 3010 can be further limited. In addition, the pin 3400 and the stop block 3100 are axially limited to each other along the hinge shaft 3013 of the locking block. This prevents the locking block 3010 from moving out of the stop block 3100 along the hinge shaft 3013 of the locking block. This ensures the stability of the swing limit engagement between the stop block 3100 and the locking block 3010, as well as the stability of the hinge between the locking block 3010 and the rocker seat.

[0070] like Figure 4 and Figure 5As shown, the tabletop locking device 3000 also includes a telescopic detection mechanism, which is correspondingly mounted on the guide seat 3020 with the sliding latch 3030. The telescopic detection mechanism includes a sensor mounting base 3060, a bracket 3070, and a scale 3080 mounted on the side of the guide seat 3020. The sensor mounting base 3060 is fixedly mounted on the side of the guide seat 3020, and has a first sensing position 3061 corresponding to the horizontal swing position of the rocker body, a second sensing position 3062 corresponding to the required deflection angle, and a sensing position corresponding to the retracted position of the sliding latch 3030. Figure 11 The third sensing position 3063 corresponding to the shown is, in this embodiment, the horizontal swing position of the rocker body is the position when the tilt angle of the rocker body is 0 degrees; the required deflection angle is 0.2 degrees, that is, the tilt angle of the rocker body is 0.2 degrees at this time.

[0071] The bracket 3070 is fixed to the side of the guide seat 3020 and located above the sensor mounting base 3060. One end of the scale 3080 is guided and slidably engaged with the bracket 3070, and the other end is fixedly connected to the rear end of the sliding latch 3030. A sensing block 3090 is also fixed on the scale 3080. The sensing block 3090 is positioned near the end of the scale 3080 that is slidably engaged with the bracket 3070, and is used to sense corresponding sensing positions. Thus, when the tilt angle of the rocker body needs to be 0 degrees, the sliding latches 3030 of the platform locking devices 3000 on both sides of the rocker body need to extend to align the sensing blocks 3090 with the first sensing position 3061. Figure 10 As shown, when it is necessary to make the tilt angle of the rocker body a certain tilt angle, at least the extension of the sliding latch 3030 in the table locking device 3000 located on one side of the rocker body must be sufficient to make the position of the sensing block 3090 located behind the first sensing position 3061.

[0072] In addition, since the tilt angle of the rocker body is related to the elongation of the sliding latch 3030, by detecting the specific elongation of the sliding latch 3030, the specific elongation of the sliding latch 3030 can be controlled, thereby indirectly achieving precise control of the specific tilt angle of the rocker body.

[0073] This invention hinges a locking block in a tabletop locking device to a rocker body, with the hinge axis of the locking block parallel to the rocker body's rocker axis and perpendicular to the guide direction of the sliding latch. When the drive device drives the sliding latch, mounted on the guide seat, to extend or retract in a direction perpendicular to the rocker body's rocker axis, the inclined support surface on the sliding latch pushes against the matching support surface on the locking block. This raises the rocker body hinged to the locking block, giving it a certain tilt angle. Simultaneously, the locking block rotates around its hinge axis to maintain surface contact between the inclined support surface and the matching support surface, reducing contact stress between the sliding latch and the locking block and preventing damage to both. Furthermore, since the rocker body's tilt angle is related to the extension amount of the sliding latch, and the drive device has a telescopic locking function, the extension amount of the sliding latch can be controlled by the drive device. This control over the extension amount allows for control of the rocker body's tilt angle, and the telescopic locking function of the drive device can lock the tilt angle of the rocker body, thus fixing it in place.

[0074] Example 2 of the swing test bench in this invention:

[0075] The difference between this embodiment and Embodiment 1 is that, in Embodiment 1, the end of the threaded sleeve 3040 is provided with a connecting flange 3041 for fixed connection with the end of the mating hole 3032, the threaded sleeve 3040 is located inside the mating hole 3032, and there is a gap between the outer peripheral surface of the threaded sleeve 3040 and the inner wall of the mating hole 3032. In this embodiment, the axial middle portion of the threaded sleeve 3040 is provided with a connecting flange 3041 for fixed connection with the end of the mating hole 3032. The threaded sleeve 3040 has a portion located inside the mating hole 3032 and another portion located outside the mating hole 3032. The outer periphery of the portion of the threaded sleeve 3040 inside the mating hole 3032 is radially spaced from the inner wall of the mating hole 3032, and the radially outer side of the portion of the threaded sleeve 3040 outside the mating hole 3032 has a deflection space for the threaded sleeve 3040 to deflect.

[0076] Example 3 of the swing test bench in this invention:

[0077] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the end of the threaded sleeve 3040 is provided with a connecting flange 3041 for fixed connection with the end of the mating hole 3032, the threaded sleeve 3040 is located inside the mating hole 3032, and there is a gap between the outer peripheral surface of the threaded sleeve 3040 and the inner wall of the mating hole 3032. In this embodiment, the end of the threaded sleeve 3040 is provided with a connecting flange 3041 for fixed connection with the end of the mating hole 3032, the threaded sleeve 3040 is located outside the mating hole 3032, the threaded sleeve 3040 is exposed outside the mating hole 3032, and the radially outer side of the threaded sleeve 3040 has a deflection space for the threaded sleeve 3040 to deflect.

[0078] Example 4 of the swing test bench in this invention:

[0079] The difference between this embodiment and Embodiment 1 is that, in Embodiment 1, the table locking device 3000 further includes a threaded sleeve 3040 fixed to the end of the mating hole 3032 and having internal threads. The threaded sleeve 3040 is used to thread-mate with the transmission screw 3050, and the internal threads of the threaded sleeve 3040 constitute the transmission thread. In this embodiment, the mating hole 3032 includes an internal thread section and a smooth hole section. The internal thread section is located at the end of the mating hole 3032 and is used to thread-mate with the transmission screw 3050 to form the transmission thread.

[0080] Example 5 of the swing test bench in this invention:

[0081] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, each rocker body has four platform locking devices 3000 symmetrically arranged on both sides perpendicular to its own rocking axis. In this embodiment, each rocker body has two platform locking devices 3000 symmetrically arranged on both sides perpendicular to its own rocking axis, or six or more platform locking devices 3000 symmetrically arranged on both sides perpendicular to its own rocking axis.

[0082] Example 6 of the swing test bench in this invention:

[0083] The difference between this embodiment and Embodiment 1 is that, in Embodiment 1, the telescopic amount detection mechanism includes a first sensing position 3061 corresponding to the horizontal swing position of the rocker body, a second sensing position 3062 corresponding to the desired deflection angle, and a third sensing position 3063 corresponding to the retracted position of the sliding latch 3030. In this embodiment, the telescopic amount detection mechanism includes a first sensing position 3061 corresponding to the horizontal swing position of the rocker body and a second sensing position 3062 corresponding to the desired deflection angle.

[0084] Example 7 of the swing test bench in this invention:

[0085] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the rocking test bench also includes a telescopic measurement mechanism for detecting the elongation of the sliding latch 3030, that is, the precise control of the tilt angle of the rocking body is indirectly achieved by measuring the elongation of the sliding latch 3030. In this embodiment, the precise control of the tilt angle of the rocking body is achieved by directly detecting the tilt angle of the rocking body.

[0086] Example 8 of the swing test bench in this invention:

[0087] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the driving device is a lead screw and nut mechanism. In this embodiment, the driving device is an electric push rod that is connected to the motor 3300.

[0088] Example 9 of the swing test bench in this invention:

[0089] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, there is a swing limiting structure between the locking block 3010 and the rocker body. The swing limiting structure is used to ensure that the inclined support surface 3031 can contact the adaptable support surface 3011 when the sliding latch 3030 is extended. In this embodiment, the inclined support surface 3031 and the adaptable support surface 3011 are kept in surface contact only by the rotation of the locking block 3010 around its own hinge axis.

[0090] Example 10 of the swing test bench in this invention:

[0091] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, a stop block 3100 fixed to the bottom surface of the rocker body is provided on one side of the locking block 3010, and the locking block 3010 is hinged to the rocker body through the hinge with the stop block 3100. In this embodiment, both sides of the locking block 3010 are provided with stop blocks 3100 that are hinged to the locking block 3010, that is, the locking block 3010 is hinged to the rocker body through the stop blocks 3100 located on both sides.

[0092] Example 11 of the swing test bench in this invention:

[0093] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, a stop block 3100 fixed to the bottom surface of the rocker body is provided on one side of the locking block 3010, and the locking block 3010 is hinged to the rocker body through the hinge with the stop block 3100. In this embodiment, a U-shaped hinge seat is fixedly installed on the bottom surface of the rocker body, and the locking block 3010 is hinged to the two side plates of the U-shaped hinge seat respectively.

[0094] Example 12 of the swing test bench in this invention:

[0095] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the guide seat 3020 is installed on the bottom surface of the rocker seat, and the locking block 3010 is installed on the bottom surface of the corresponding rocker body. In this embodiment, the guide seat 3020 is installed on the top surface of the rocker seat, and the locking block 3010 is installed on the top surface of the corresponding rocker body.

[0096] Example 13 of the swing test bench in this invention:

[0097] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the locking block 3010 is provided with a boss 3015 and the stop block 3100 is provided with a groove 3120 that matches the boss 3015. In this embodiment, the locking block 3010 is provided with a groove 3120 and the stop block 3100 is provided with a boss 3015 that matches the groove 3120.

[0098] An embodiment of the table locking device of the swing test bench in this invention: The specific structure of the table locking device 3000 is the same as that of the table locking device 3000 in the above embodiment of the swing test bench, and will not be repeated here.

[0099] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A platform locking device for a swing test bench, characterized in that, The device includes a guide seat for fixing to a rocker base, on which a sliding latch is guided to extend and retract perpendicular to the rocker axis of a rocker body rotatably mounted on the corresponding rocker base. The front end of the sliding latch has an inclined support surface that is inclined in the vertical direction. The table locking device of the rocker test bench also includes a locking block for hinged to the rocker body. The locking block is positioned in front of the sliding latch in the direction of extension and retraction, and has a hinge axis that is parallel to the rocker axis of the rocker body and perpendicular to the direction of extension and retraction of the sliding latch. The locking block has an adapting support surface for fitting with the inclined support surface. The adapting support surface is used to rotate the locking block about its own hinge axis when pushed forward by the inclined support surface, and to ensure that the locking block fits with the inclined support surface. While the support surface remains in contact, the locking block moves up and down to tilt the rocker body. The table locking device of the rocker test bench also includes a driving device, which drives the sliding latch to extend and retract and has a telescopic locking function, so that the tilt angle of the rocker body is locked. The locking block is provided with a swing limiting structure, which is used to cooperate with the matching limiting structure on the rocker body to limit the swing range of the locking block, ensuring that the tilting support surface can contact the matching support surface when the sliding latch extends. The swing limiting structure is a boss or groove provided on the locking block, and the matching limiting structure is a corresponding groove or boss. There is an active interval between the upper and lower sidewalls of the groove and the matching boss to limit the swing range.

2. The table locking device of the swing test bench according to claim 1, characterized in that, The locking block (3010) includes a hinge shaft for hinged to the rocker seat. The table locking device of the rocker test bench also includes a stop (3100) for fixing on the rocker seat. The stop (3100) is for the hinge shaft to pass through. The end of the hinge shaft is exposed on the side of the stop (3100). A pin (3400) is fixed on the end face of the end of the hinge shaft. The pin (3400) is used to limit the engagement with the stop (3100) along the axial direction of the hinge shaft.

3. The table locking device of the swing test bench according to claim 1, characterized in that, The driving device includes a lead screw (3050), and the sliding lock tongue (3030) is provided with a transmission thread that engages with the lead screw (3050) to drive the sliding lock tongue (3030) to extend and retract. The lead screw (3050) and the transmission thread constitute a lead screw and nut mechanism.

4. The table locking device of the swing test bench according to claim 3, characterized in that, The sliding locking tongue (3030) is provided with a mating hole (3032) into which the transmission screw (3050) extends; the table locking device of the swing test bench also includes a threaded sleeve (3040) for threaded engagement with the transmission screw (3050); the end of the threaded sleeve (3040) is provided with a connecting flange (3041) for fixed connection with the end of the mating hole (3032), the threaded sleeve (3040) is located inside the mating hole (3032), and there is a gap between the outer peripheral surface of the threaded sleeve (3040) and the inner wall of the mating hole (3032); or, the threaded sleeve (3040) is exposed outside the mating hole (3032), and the radial outer side of the threaded sleeve (3040) has a swing space for the threaded sleeve (3040) to swing.

5. The table locking device of the swing test bench according to claim 3, characterized in that, The sliding locking tongue (3030) is provided with a mating hole (3032) into which the transmission screw (3050) extends; the table locking device of the swing test bench also includes a threaded sleeve (3040) for threaded engagement with the transmission screw (3050); the axial middle part of the threaded sleeve (3040) is provided with a connecting flange (3041) for fixed connection with the end of the mating hole (3032); the threaded sleeve (3040) has a part located inside the mating hole (3032) and another part located outside the mating hole (3032), the outer periphery of the part of the threaded sleeve (3040) located inside the mating hole (3032) and the inner wall of the mating hole (3032) are radially spaced, and the radial outer side of the part of the threaded sleeve (3040) located outside the mating hole (3032) has a swing space for the threaded sleeve (3040) to swing.

6. The table locking device of the swing test bench according to claim 1, characterized in that, The table locking device of the swing test bench also includes a telescoping detection mechanism. The telescoping detection mechanism is arranged on the guide seat (3020) corresponding to the sliding latch (3030). The telescoping detection mechanism is used to detect the extension of the sliding latch (3030).

7. The table locking device of the swing test bench according to claim 6, characterized in that, The telescoping detection mechanism includes a first sensing position (3061) corresponding to the horizontal swing position of the rocker body and a second sensing position (3062) corresponding to the desired yaw angle.

8. A swing test bench, comprising a swing base and a swing body hinged to the swing base, the swing body having a horizontal swing axis, the swing test bench further comprising at least two table surface locking devices arranged on both sides perpendicular to the swing axis of the swing body, characterized in that, The table locking device of the swing test bench is the same as the table locking device of the swing test bench according to any one of claims 1 to 7.

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