Trunnion of vibrating table
By designing the locking mechanism of the trunnion of the vibration table, the problem of relative movement of the vibration table body and the vibration table base in large displacement and large load tests is solved, and the locking of the trunnion is achieved to meet the test needs.
Patent Information
- Application Number
- CN202422277833.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-18
AI Technical Summary
When the vibration table is subjected to large displacement and large load tests, the vibration table base and the vibration table base are relatively moving in the vibration direction of the vibration table. There may be cases where the vibration table does not vibrate and the vibration table base vibrates. A locking mechanism needs to be installed to lock the trunnions.
A vibrating table trunnion is designed, including a trunnion seat, an elastic member and a trunnion member, and a locking mechanism is provided to switch between the unlocking position and the locking position through the locking rod and the locking block, thereby realizing the locking of the trunnion seat and the trunnion member in the vibration direction of the vibrating table.
The locking of the trunnion in the vibration direction of the vibration table is achieved, meeting the needs of large displacement and large load tests, and preventing the relative movement between the vibration table and the base of the vibration table.
Smart Images
Figure CN223062809U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of vibration tables, in particular to a trunnion of a vibration table. Background Art
[0002] Currently, among test equipment, vibration tables are relatively common test equipment used to test the reliability of products under environmental vibrations.
[0003] During the test process of a vibration table, the vibration table body vibrates, and the force generated by the vibration is transmitted to the ground. To isolate vibration, trunnions are usually connected between the vibration table body and the vibration table base.
[0004] However, when the vibration table conducts large-displacement and large-load tests, the relative movement between the vibration table body and the vibration table base in the vibration direction of the vibration table body is relatively large, and it is possible that the vibration table body does not vibrate while the vibration table base vibrates. Therefore, a locking mechanism needs to be set up to lock the trunnion, so that the vibration table body and the vibration table base cannot move relative to each other in the vibration direction of the vibration table body. Summary of the Utility Model
[0005] Aiming at the problems existing in the above-mentioned prior art, the purpose of the utility model is to provide a trunnion of a vibration table, so that the vibration table body and the vibration table base cannot move relative to each other in the vibration direction of the vibration table body.
[0006] The purpose of the utility model is achieved by the following technical solutions:
[0007] A trunnion of a vibration table includes a trunnion seat, an elastic member, and a trunnion member. The two ends of the elastic member are respectively connected to the trunnion seat and the trunnion member. The trunnion seat is used to be connected to the vibration table body, and the trunnion member is used to be connected to the vibration table base. It further includes a locking mechanism. The locking mechanism includes a locking rod, a first locking groove provided on the trunnion seat, and a second locking groove provided on the trunnion member. The locking rod includes a rotating rod and a locking block connected to the rotating rod. Rotating the rotating rod causes the locking block to switch between an unlocking position and a locking position; when the locking block is in the unlocking position, the locking block is completely within the first locking groove or the second locking groove, and the trunnion seat and the trunnion member can move relative to each other in the vibration direction of the vibration table body; when the locking block is in the locking position, the first locking groove and the second locking groove are arranged opposite to each other, and the locking block is simultaneously located in the first locking groove and the second locking groove, and the trunnion seat and the trunnion member cannot move relative to each other in the vibration direction of the vibration table body.
[0008] Further, it further includes a guiding mechanism. The trunnion seat includes a connecting plate, a top plate and a bottom plate respectively connected to two ends of the connecting plate. The connecting plate is used for connecting with the vibration table body. The guiding mechanism includes a guiding rod and a guiding hole provided on the trunnion member. The axis of the guiding rod is arranged along the vibration direction of the vibration table body. Two ends of the guiding rod are respectively connected to the top plate and the bottom plate, and the guiding rod passes through the guiding hole, and the trunnion member slides on the guiding rod.
[0009] Furthermore, a through hole for the rotating rod to pass through is provided on the top plate, and a rotating part facilitating the rotation of the rotating rod is provided at one end of the rotating rod.
[0010] Still further, there are two locking mechanisms. The locking mechanism further includes a locking member. The rotating part is arranged on the side of the top plate away from the bottom plate, and one locking member is paired with each rotating part. When each locking block is in the unlocking position, the rotating part is connected to the top plate through the locking member. When each locking block is in the locking position, the two rotating parts are connected through the same locking member.
[0011] Still further, the rotating part is a slotted cross, the slotted cross protrudes from the top plate, the locking member is a locking strip, and the locking strip is snapped into the slotted cross.
[0012] Still further, the locking strip includes a first locking strip and a second locking strip, and the slotted cross includes a first slotted cross and a second slotted cross. When the locking block is in the unlocking position, two ends of the first locking strip are respectively connected to the first slotted cross and the top plate. The connection point of the first locking strip and the first slotted cross is the first connection point, and the connection point of the first locking strip and the top plate is the second connection point. Two ends of the second locking strip are respectively connected to the second slotted cross and the top plate. The connection point of the second locking strip and the second slotted cross is the third connection point, and the connection point of the second locking strip and the top plate is the fourth connection point. The first connection point, the second connection point, the third connection point and the fourth connection point are the four vertices of a square.
[0013] Still further, when the locking block is in the unlocking position, each locking block is completely in the first locking groove. The accommodating volume of the second locking groove is smaller than the volume of the locking block.
[0014] Furthermore, a positioning convex strip is provided on the connecting plate, and a positioning groove matched with the positioning convex strip is provided on the trunnion member. The length direction of the positioning groove is the same as the axis direction of the guiding rod.
[0015] Further, the elastic member is an air spring.
[0016] Furthermore, two air springs are provided, and each air spring is respectively arranged on opposite sides of the trunnion seat.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model designs a trunnion locking mechanism. By rotating the rotating rod, the position of the locking block is changed, and it is switched between the unlocking position and the locking position, so that the trunnion seat and the trunnion part can be locked in the vibration direction of the vibration table body, that is, the trunnion is locked, meeting the need for trunnion locking when the vibration table body performs large-displacement and large-load tests. Description of the Drawings
[0018] Figure 1 is a three-dimensional schematic diagram of the vibration table of the present utility model;
[0019] Figure 2 is a three-dimensional schematic diagram after the trunnion of the vibration table of the present utility model and the vibration table base are assembled;
[0020] Figure 3 is a first three-dimensional schematic diagram of the trunnion of the vibration table of the present utility model;
[0021] Figure 4 is a second three-dimensional schematic diagram of the trunnion of the vibration table of the present utility model;
[0022] Figure 5 is a three-dimensional schematic diagram of the locking rod of the present utility model;
[0023] Figure 6 is a three-dimensional schematic diagram of the trunnion seat of the present utility model;
[0024] Figure 7 is the front view of the trunnion seat of the present utility model;
[0025] Figure 8 is a three-dimensional schematic diagram of the trunnion part of the present utility model;
[0026] Figure 9 is the front view of the trunnion part of the present utility model;
[0027] Figure 10 is the right view of the trunnion of the vibration table of the present utility model in the locked state;
[0028] Figure 11 is Figure 10 the cross-sectional view of the A-A section in
[0029] Figure 12 is the left view of the trunnion of the vibration table of the present utility model in the unlocked state;
[0030] Figure 13 is Figure 12 the cross-sectional view of the B-B section in
[0031] Figure 14 is a top view of the trunnion of the vibrating table when the present utility model is in a locked state;
[0032] Figure 15 is a top view of the trunnion of the vibrating table when the present utility model is in an unlocked state;
[0033] Figure 16 is Figure 3 an enlarged schematic view of part C in
[0034] In the figure:
[0035] 1 - trunnion of the vibrating table; 1a - trunnion seat; 1aa - connecting plate; 1ab - top plate; 1ac - bottom plate; 1b - trunnion part; 1c - locking rod; 1ca - rotating rod; 1cb - locking block; 1cc - slotted cross; 1d - first locking groove; 1e - second locking groove; 1f - guide rod; 1h - air spring; 2 - vibrating table body; 3 - vibrating table base; 4 - locking strip; 5 - positioning rib; 6 - positioning groove. Detailed implementation manners
[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present utility model belong to the scope of protection of the present utility model.
[0037] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0038] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0039] As Figure 1 and Figure 2 shown, the present utility model discloses a vibration table trunnion 1 for connecting a vibration table body 2 and a vibration table base 3. When the vibration table body 2 vibrates, the vibration table trunnion 1 plays a role in vibration isolation, preventing the vibration of the vibration table body 2 from being transmitted to the vibration table base 3, thereby preventing the vibration from being transmitted to the ground and improving the comfort of the vibration table operator.
[0040] However, when the vibration table is performing large-displacement and large-load tests, the relative movement between the vibration table body 2 and the vibration table base 3 in the vibration direction of the vibration table body is relatively large, and it is possible that the vibration table body 2 does not vibrate while the vibration table base 3 vibrates. Therefore, a locking mechanism is provided in the vibration table trunnion 1 of the present utility model to lock the vibration table trunnion 1, so that the vibration table body 2 and the vibration table base 3 cannot move relative to each other in the vibration direction of the vibration table body.
[0041] Specifically, as Figures 3 to 13 shown, the vibration table trunnion 1 of the present utility model includes a trunnion seat 1a, an elastic member, and a trunnion member 1b. The two ends of the elastic member are respectively connected to the trunnion seat 1a and the trunnion member 1b. The trunnion seat 1a is used to connect to the vibration table body 2, and the trunnion member 1b is used to connect to the vibration table base 3. In this embodiment, when the vibration table is working, the vibration table body 2 vibrates in the height direction, so the trunnion seat 1a and the trunnion member 1b move relative to each other in the height direction. The vibration table trunnion 1 of the present utility model further includes a locking mechanism, and the locking mechanism includes a locking rod 1c, a first locking groove 1d provided on the trunnion seat 1a, and a second locking groove 1e provided on the trunnion member 1b. As Figure 5As shown, the locking lever 1c includes a rotating lever 1ca and a locking block 1cb connected to the rotating lever 1ca. Rotating the rotating lever 1ca causes the locking block 1cb to switch between an unlocking position and a locking position. That is, when the rotating lever 1ca is in the unlocking position, the vibration table trunnion is in the unlocked state; when the rotating lever 1ca is in the locking position, the vibration table trunnion is in the locked state.
[0042] As Figure 13 shown, when the locking block 1cb is in the unlocking position, the locking block 1cb is completely within the first locking groove 1d or the second locking groove 1e. The trunnion seat 1a and the trunnion member 1b can move relative to each other in the vibration direction of the vibration table body 2, that is, the trunnion seat 1a and the trunnion member 1b can move relative to each other in the height direction. In this embodiment, the locking block 1cb rotates completely into the first locking groove 1d. In other embodiments, the locking block 1cb can also rotate completely into the second locking groove 1e.
[0043] As Figure 11 shown, when the locking block 1cb is in the locking position, the first locking groove 1d and the second locking groove 1e are disposed opposite to each other, and the locking block 1cb is located in both the first locking groove 1d and the second locking groove 1e. The trunnion seat 1a and the trunnion member 1b cannot move relative to each other in the vibration direction of the vibration table body 2, that is, the trunnion seat 1a and the trunnion member 1b cannot move relative to each other in the height direction.
[0044] The utility model changes the position of the locking block 1cb by rotating the rotating lever 1ca, switching between the unlocking position and the locking position, so that the trunnion seat 1a and the trunnion member 1b can be locked in the vibration direction of the vibration table body 2, that is, the vibration table trunnion 1 is locked, meeting the need for locking the vibration table trunnion 1 when the vibration table body 2 performs large-displacement and large-load tests.
[0045] In this embodiment, as Figure 3 、 Figures 6 to 8As shown, the trunnion seat 1a includes a connecting plate 1aa, a top plate 1ab and a bottom plate 1ac respectively connected to both ends of the connecting plate 1aa. The connecting plate 1aa is used to connect with the vibration table body 2, and the trunnion seat 1a is in a C shape. The vibration table trunnion 1 of the present utility model further includes a guiding mechanism. The guiding mechanism includes a guiding rod 1f and a guiding hole 1g provided on the trunnion member 1b. The axis of the guiding rod 1f is arranged along the vibration direction of the vibration table body 2, that is, along the height direction. Both ends of the guiding rod 1f are respectively connected to the top plate 1ab and the bottom plate 1ac, and the guiding rod 1f passes through the guiding hole 1g, and the trunnion member 1b slides on the guiding rod 1f. Through the arrangement of the guiding rod 1f, the present utility model facilitates the mutual movement between the trunnion seat 1a and the trunnion member 1b only in the height direction. The guiding rod 1f also plays a limiting role, restricting the trunnion member 1b from moving in other directions except the height direction along with the vibration of the vibration table body 2. In other embodiments, the guiding rod 1f can also be provided on the trunnion member 1b, and the guiding hole 1g can be provided on the trunnion seat 1a. The trunnion seat 1a and the trunnion member 1b can also be connected to each other by means of a sliding rail and slider connection and cooperation.
[0046] In this embodiment, as Figure 5 and Figure 6 shown, a through hole for the rotating rod 1ca to pass through is provided on the top plate 1ab. One end of the rotating rod 1ca is provided with a rotating part for facilitating the rotation of the rotating rod 1ca, and the locking block 1cb is arranged at the other end of the rotating rod 1ca. Through the arrangement of the through hole, the present utility model enables the rotating rod 1ca to rotate stably. Through the arrangement of the rotating part, it is convenient to use an external instrument to rotate the rotating rod 1ca. In other embodiments, the rotating part can also be arranged on the side wall of the rotating rod 1ca.
[0047] In this embodiment, as Figure 14 and Figure 15 shown, there are two locking mechanisms. In addition to including the locking rod 1c, the first locking groove 1d, and the second locking groove 1e, the locking mechanism further includes a locking member. The rotating part is arranged on the side of the top plate 1ab away from the bottom plate 1ac, and one locking member is paired with each rotating part. As Figure 15 shown, when each locking block 1cb is in the unlocking position, the rotating part is connected to the top plate 1ab through the locking member. As Figure 14As shown, when each of the locking blocks 1cb is in the locking position, the two rotating parts are connected by the same locking member, and the other locking member is fixed on the top plate 1ab. By arranging the locking member in the present utility model, it is convenient for the operator to know the position of the locking block 1cb, and through the locking of the locking block 1cb, the locking block 1cb is not easily displaced due to the vibration of the vibration table body 2, for example, the locking block 1cb is not easily changed from the locking position to the unlocking position due to vibration. In other embodiments, it may also be that when in the unlocking position, the two rotating parts are connected by the same locking member, and when in the locking position, the rotating part is connected to the top plate 1ab through the locking member.
[0048] In this embodiment, as Figure 5 and Figure 16 shown, the rotating part is a slotted hole 1cc, the slotted hole 1cc protrudes from the top plate 1ab, the locking member is a locking bar 4, and one of the locking bars 4 is snapped into the slotted hole 1cc. As Figure 16 shown, when the locking block 1cb is in the locking position, one locking bar 4 is simultaneously snapped into the two slotted holes 1cc, and the locking bar 4 is fixed to the slotted hole 1cc with screws, and the other locking bar 4 is also fixed to the top plate 1ab with screws. As Figure 15 shown, when the locking block 1cb is in the unlocking position, after one end of the locking bar 4 is snapped into the slotted hole 1cc, the locking bar 4 is fixed to the slotted hole 1cc with screws, and the other end of the locking bar 4 is fixed to the top plate 1ab with screws. By arranging the locking bar 4 and the slotted hole 1cc in the present utility model, it is convenient to lock the locking rod 1c. In other embodiments, the shape of the rotating part may be various shapes such as a convex block, an internal hexagonal socket, etc.
[0049] In this embodiment, as Figure 14 and Figure 15As shown, the locking bar 4 includes a first locking bar and a second locking bar, and the one - slot 1cc includes a first one - slot and a second one - slot. When the locking block 1cb is in the unlocking position, the two ends of the first locking bar are respectively connected to the first one - slot and the top plate 1ab. The connection point of the first locking bar and the first one - slot is the first connection point, and the connection point of the first locking bar and the top plate 1ab is the second connection point. The two ends of the second locking bar are respectively connected to the second one - slot and the top plate 1ab. The connection point of the second locking bar and the second one - slot is the third connection point, and the connection point of the second locking bar and the top plate 1ab is the fourth connection point. The first connection point, the second connection point, the third connection point, and the fourth connection point are the four vertices of a square, and the distance between the first connection point and the second connection point is equal to the length of the locking bar 4. Therefore, when it is necessary to rotate the locking rod 1c from the locking position to the unlocking position, at the locking position, only one end of the locking bar 4 needs to be disengaged from the one - slot 1cc, and then the locking bar 4 together with the rotating rod 1ca is rotated until the locking block 1cb is in the unlocking position, and the locking bar 4 is connected to the top plate 1ab. When the locking block 1cb is in the locking position, the locking bar 4 that does not engage in the one - slot 1cc can be quickly fixed on the top plate 1ab through the second connection point and the fourth connection point. By defining the positions of the connection points such as the first connection point, the present utility model makes it convenient to operate the locking block 1cb during the position switching process. In other embodiments, the first connection point, the second connection point, the third connection point, and the fourth connection point may also be on the same straight line, but it is not as convenient as this embodiment.
[0050] In this embodiment, as Figure 11 and Figure 13 shown. When the locking block 1cb is in the unlocking position, each locking block 1cb is completely within the first locking groove 1d, and the accommodating volume of the second locking groove 1e is smaller than the volume of the locking block 1cb. By defining that the accommodating volume of the second locking groove 1e is smaller than the volume of the locking block 1cb, the present utility model avoids the situation where during the rotation of the two rotating rods 1ca, one locking block 1cb is within the first locking groove 1d and the other locking block 1cb is within the second locking groove 1e. In other embodiments, it is also possible that when the locking block 1cb is in the unlocking position, each locking block 1cb is completely within the second locking groove 1e, and the accommodating volume of the first locking groove 1d is smaller than the volume of the locking block 1cb.
[0051] As Figure 6 and Figure 8As shown, a positioning rib 5 is provided on the connecting plate 1aa, and a positioning groove 6 that cooperates with the positioning rib 5 is provided on the trunnion member 1b. The length direction of the positioning groove 6 is the same as the axial direction of the guide rod 1f. Through the arrangement of the positioning rib 5 and the positioning groove 6, the present utility model further facilitates the mutual movement of the trunnion seat 1a and the trunnion member 1b in the vibration direction of the vibration table body 2, and also facilitates the assembly of the vibration table trunnion 1, playing a positioning role. In other embodiments, positioning protrusions may be provided on the top plate 1ab, and positioning grooves that cooperate with the positioning protrusions may be provided on the trunnion member 1b, which can also facilitate the assembly of the vibration table trunnion 1.
[0052] In this embodiment, as Figure 3 and Figure 4 shown, the elastic member is an air spring 1h. The air spring has advantages such as adjustable air spring hardness and long service life compared with traditional metal springs, but its price is higher than that of traditional metal springs. In other embodiments, in order to reduce the production cost of the vibration table trunnion 1, traditional metal springs may also be used as the elastic member.
[0053] In this embodiment, as Figure 3 and Figure 4 shown, two air springs 1h are provided, and each air spring 1h is respectively arranged on opposite sides of the trunnion seat 1a. By arranging the air springs 1h on both sides of the trunnion seat 1a, the vibration damping effect of the vibration table trunnion 1 is ensured. In other embodiments, four air springs 1h may also be provided and evenly distributed around the trunnion seat 1a.
[0054] In summary, in the present utility model, by rotating the rotating rod 1ca, the position of the locking block 1cb is changed, and it is switched between the unlocking position and the locking position, so that the trunnion seat 1a and the trunnion member 1b can be locked in the vibration direction of the vibration table body 2. And through the arrangement of the guiding rod 1f, it is convenient for the trunnion seat 1a and the trunnion member 1b to move relative to each other only in the height direction. And through the arrangement of the rotating part, it is convenient to use an external instrument to rotate the rotating rod 1ca. And through the arrangement of the locking part, it is convenient for the operator to know the position of the locking block 1cb, and through the locking of the locking block 1cb, the locking block 1cb is not easily changed in position due to the vibration of the vibration table body 2. And through the arrangement of the locking strip 4 and the single-slot 1cc, it is convenient to lock the locking rod 1c. And by defining the positions of connection points such as the first connection point, it is convenient for operation during the position switching of the locking block 1cb. And by defining that the accommodation volume of the second locking groove 1e is smaller than the volume of the locking block 1cb, the situation where one locking block 1cb is located in the first locking groove 1d and the other locking block 1cb is located in the second locking groove 1e is avoided. And through the arrangement of the positioning rib 5 and the positioning groove 6, it is further convenient for the trunnion seat 1a and the trunnion member 1b to move relative to each other in the vibration direction of the vibration table body 2, and at the same time, it is also convenient for the assembly of the vibration table trunnion 1, playing a positioning role. And by arranging the air springs 1h on both sides of the trunnion seat 1a, the damping effect of the vibration table trunnion 1 is guaranteed.
[0055] It should be emphasized that the above are only the preferred embodiments of the present utility model, and there is no any form of limitation to the present utility model. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims
1. A trunnion of a shaking table, comprising a trunnion seat (1a), an elastic member and a trunnion member (1b). The two ends of the elastic member are respectively connected to the trunnion seat (1a) and the trunnion member (1b). The trunnion seat (1a) is used for connecting to a shaking table body (2), and the trunnion member (1b) is used for connecting to a shaking table base (3), characterized in that, It further includes a locking mechanism, which includes a locking rod (1c), a first locking groove (1d) provided on the trunnion seat (1a), and a second locking groove (1e) provided on the trunnion member (1b). The locking rod (1c) includes a rotating rod (1ca) and a locking block (1cb) connected to the rotating rod (1ca). Rotating the rotating rod (1ca) causes the locking block (1cb) to switch between an unlocking position and a locking position. When the locking block (1cb) is in the unlocking position, the locking block (1cb) is completely within the first locking groove (1d) or the second locking groove (1e), and the trunnion seat (1a) and the trunnion member (1b) can move relative to each other in the vibration direction of the vibration table body (2). When the locking block (1cb) is in the locking position, the first locking groove (1d) and the second locking groove (1e) are arranged opposite to each other, and the locking block (1cb) is simultaneously located in the first locking groove (1d) and the second locking groove (1e), and the trunnion seat (1a) and the trunnion member (1b) cannot move relative to each other in the vibration direction of the vibration table body (2).
2. The trunnion of the vibrating table according to claim 1, wherein, It further includes a guiding mechanism. The trunnion seat (1a) includes a connecting plate (1aa), a top plate (1ab) and a bottom plate (1ac) respectively connected to both ends of the connecting plate (1aa). The connecting plate (1aa) is used to connect to the vibration table body (2). The guiding mechanism includes a guiding rod (1f) and a guiding hole (1g) provided on the trunnion member (1b). The axis of the guiding rod (1f) is arranged along the vibration direction of the vibration table body (2). Both ends of the guiding rod (1f) are respectively connected to the top plate (1ab) and the bottom plate (1ac), and the guiding rod (1f) passes through the guiding hole (1g), and the trunnion member (1b) slides on the guiding rod (1f).
3. The trunnion of the shaking table according to claim 2, characterized in that A through hole for the rotating rod (1ca) to pass through is provided on the top plate (1ab), and a rotating part for facilitating the rotation of the rotating rod (1ca) is provided at one end of the rotating rod (1ca).
4. The trunnion of the shaking table according to claim 3, characterized in that There are two locking mechanisms, and the locking mechanism further includes a locking member. The rotating part is arranged on the side of the top plate (1ab) away from the bottom plate (1ac), and one locking member is paired with each rotating part. When each locking block (1cb) is in the unlocking position, the rotating part is connected to the top plate (1ab) through the locking member. When each locking block (1cb) is in the locking position, the two rotating parts are connected through the same locking member.
5. The trunnion of the shaking table according to claim 4, characterized in that The rotating part is a slotted hole (1cc), the slotted hole (1cc) protrudes from the top plate (1ab), and the locking member is a locking bar (4), and the locking bar (4) is clamped into the slotted hole (1cc).
6. The trunnion of the shaking table according to claim 5, wherein The locking strip (4) includes a first locking strip and a second locking strip, and the one-way slot (1cc) includes a first one-way slot and a second one-way slot; when the locking block (1cb) is in the unlocking position, both ends of the first locking strip are respectively connected to the first one-way slot and the top plate (1ab), the connection point of the first locking strip and the first one-way slot is the first connection point, the connection point of the first locking strip and the top plate (1ab) is the second connection point, both ends of the second locking strip are respectively connected to the second one-way slot and the top plate (1ab), the connection point of the second locking strip and the second one-way slot is the third connection point, the connection point of the second locking strip and the top plate (1ab) is the fourth connection point, and the first connection point, the second connection point, the third connection point, and the fourth connection point are the four vertices of a square.
7. The trunnion of the shaking table according to claim 5, characterized in that, When the locking block (1cb) is in the unlocking position, each locking block (1cb) is completely within the first locking groove (1d); the accommodating volume of the second locking groove (1e) is smaller than the volume of the locking block (1cb).
8. The trunnion of the shaking table according to claim 2, wherein, The connecting plate (1aa) is provided with a positioning rib (5), and the trunnion member (1b) is provided with a positioning groove (6) that cooperates with the positioning rib (5), and the length direction of the positioning groove (6) is the same as the axial direction of the guide rod (1f).
9. The trunnion of the shaking table according to claim 1, characterized in that The elastic member is an air spring (1h).
10. The trunnion of the shaking table according to claim 9, characterized in that, There are two air springs (1h), and each air spring (1h) is respectively arranged on opposite sides of the trunnion seat (1a).