Circular shaft clamping assembly for dynamic balance test and clamping device

Abstract

The utility model discloses a circular shaft clamping assembly and a clamping device for a dynamic balance test, and belongs to the technical field of dynamic balance test fixtures, the clamping assembly comprises a first support, and the first support is provided with a first accommodating groove which is open towards the top; the second support is rotatably arranged at the top of the first support, a second containing groove facing the first containing groove is formed in the second support, and the first containing groove and the second containing groove are jointly used for containing the circular shaft; the fixing mechanism is rotationally connected with the second support and provided with a fixing part and an adjusting part, the fixing part is suitable for abutting against the peripheral wall of the circular shaft, the adjusting part is suitable for connecting the fixing part with the fixing mechanism, and the adjusting part is suitable for moving towards or away from the second support when the circular shaft jumps. According to the clamping assembly designed by the utility model, the clamping assembly is prevented from being damaged or the surface of the circular shaft is prevented from being damaged when the circular shaft is in a dynamic balance test and jumps, and meanwhile, the clamping assembly can be ensured to stably clamp the circular shaft all the time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dynamic balance test fixture technical field, concretely relates to dynamic balance test round axle clamping subassembly and clamping device. BACKGROUND

[0002] In the related art, in the field of mechanical engineering, especially in the design and manufacturing process of rotating parts, dynamic balance test is a key step to ensure the smooth running of these parts at high speed, and the clamping assembly is suitable for clamping rotating parts, but the unbalanced rotating parts will vibrate or even jump during dynamic balance test, thereby causing damage to the clamping assembly or damage to the surface of the round shaft. SUMMARY

[0003] The utility model discloses at least one of the technical problems in the prior art is solved. To this end, one purpose of the utility model is to provide a dynamic balance test round axle clamping subassembly.

[0004] The utility model discloses a kind of clamping devices with the above dynamic balance test round axle clamping subassembly.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] The utility model provides dynamic balance test round axle clamping subassembly, comprising: first support, the first support is formed with the first accommodating groove that is open towards top portion;Second support, the second support is rotatably arranged at the top of the first support, the second support is formed with the second accommodating groove towards the first accommodating groove, the first accommodating groove and the second accommodating groove are used for accommodating round axle in common;Fixing mechanism, the fixing mechanism is rotatably connected with the second support, the fixing mechanism is provided with fixed part and adjusting part, the fixed part is suitable for with the outer circumferential wall of round axle abut, the adjusting part is suitable for with fixed part and fixing mechanism connection, the adjusting part is suitable for when round axle jumps towards or away from the second support movement.

[0007] According to the dynamic balance test round axle clamping subassembly of the utility model, its fixed part is connected with fixing mechanism through adjusting part, and the adjusting part is suitable for moving towards or away from the second support when round axle jumps, avoid that round axle causes clamping subassembly damage or damage round shaft surface when dynamic balance test and jump, can guarantee that clamping subassembly can always stably clamps round axle simultaneously.

[0008] Furthermore, the fixing mechanism includes: a first movable rod, which is movably connected to the second bracket, and the first movable rod can be selectively moved in the height direction relative to the second bracket, and the first movable rod is provided with a first connecting channel open toward the first bracket; a first reset member, the first reset member is constructed as the adjusting part, the first reset member is arranged in the first connecting channel, one end of the first reset member is connected to the first movable rod, and the other end of the first reset member is rotatably connected to the fixing part.

[0009] Furthermore, the fixing part includes: a first connecting rod, one end of which is connected to the other end of the first reset member, and the other end of the first connecting rod extends outside the first connecting channel; a first clamping jaw, the first clamping jaw is rotatably connected to the other end of the first connecting rod, and the first clamping jaw is suitable for abutting against the outer circumferential wall of the circular shaft.

[0010] Furthermore, the inner peripheral wall of the first connecting channel is provided with a first sliding groove extending in the height direction, and the outer peripheral wall of the first connecting rod is provided with a first sliding block, and the first sliding block is movably provided in the first sliding groove.

[0011] Furthermore, the fixing mechanism includes: a second movable rod, which is rotatably connected to the second bracket, and the second movable rod is provided with a second connecting channel open toward the first bracket; a connecting tube, which is movably connected to the second movable rod, and the connecting tube can be selectively accommodated in the second connecting channel, and the connecting tube is provided with a third connecting channel open toward the first bracket; a second reset member, the second reset member is constructed as the adjusting part, the second reset member is provided in the third connecting channel, one end of the second reset member is connected to the connecting tube, and the other end of the second reset member is fixedly connected to the fixing part.

[0012] Furthermore, the fixing part includes: a second connecting rod, one end of the second connecting rod is connected to the other end of the second reset member, and the other end of the second connecting rod extends outside the third connecting channel; a second clamping jaw, the second clamping jaw is fixedly connected to the other end of the second connecting rod, and the second clamping jaw is suitable for abutting against the outer circumferential wall of the circular shaft.

[0013] Furthermore, the inner peripheral wall of the third connecting channel is provided with a second sliding groove extending in the height direction, and the outer peripheral wall of the second connecting rod is provided with a second sliding block, and the second sliding block is movably provided in the second sliding groove.

[0014] The clamping device according to the present utility model is briefly described below.

[0015] The clamping device comprises a base, a clamping assembly, the clamping assembly is configured as the circular shaft clamping assembly for dynamic balance test in any one of the above embodiments, the clamping assembly is configured as two, the two clamping assemblies are connected with the base respectively, the projections of the two clamping assemblies in the length direction overlap each other, and the two clamping assemblies are arranged at intervals in the length direction.

[0016] Other advantages, objects, and features of the present application will become apparent from the following specification, and are in part, will be apparent to those skilled in the art to which the present application pertains, or can be learned by practice of the present application. The objects and other advantages of the present application can be realized and attained by the structure particularly pointed out in the specification. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the purpose, technical scheme and beneficial effect of the present application more clear, the present application provides the following drawings for description:

[0018] Fig. 1 It is a schematic view of the clamping assembly of the present application;

[0019] Fig. 2 It is a connection schematic view of the first moving rod, the first reset member, the adjusting part and the fixing part of the present application;

[0020] Fig. 3 It is a connection schematic view of the second moving rod, the connecting barrel, the second reset member, the adjusting part and the fixing part of the present application.

[0021] The signs in the drawings are as follows:

[0022] 1, clamping assembly;

[0023] 10, first support; 11, first containing groove;

[0024] 20, second support; 21, second containing groove;

[0025] 30, fixing mechanism;

[0026] 311, first moving rod; 3111, first connecting channel; 3112, first sliding groove; 312, first reset member; 313, first connecting rod; 3131, first sliding block; 314, first clamping jaw;

[0027] 321, second moving rod; 322, connecting barrel; 3221, third connecting channel; 3222, second sliding groove; 323, second reset member; 324, second connecting rod; 3241, second sliding block; 325, second clamping jaw. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0029] In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that these specific details are not necessarily required to practice the present invention. In other instances, well-known structures, circuits, materials, or methods are not described in detail to avoid obscuring the present invention.

[0030] Throughout this specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout this specification do not necessarily refer to the same embodiment or example. In addition, the particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or subcombination. Furthermore, it will be understood by those of ordinary skill in the art that the figures provided herein are for illustrative purposes only and are not necessarily drawn to scale. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0031] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0032] Example 1:

[0033] like Figs. 1-3As shown, the utility model provides a circular shaft clamping assembly 1 for dynamic balancing test, comprising: a first bracket 10, a second bracket 20 and a fixing mechanism 30, the first bracket 10 is formed with a first accommodating groove 11 open toward the top, the second bracket 20 is rotatably arranged on the top of the first bracket 10, the second bracket 20 is formed with a second accommodating groove 21 facing the first accommodating groove 11, the first accommodating groove 11 and the second accommodating groove 21 are used together to accommodate the circular shaft, the fixing mechanism 30 is rotatably connected to the second bracket 20, the fixing mechanism 30 is provided with a fixing part and an adjusting part, the fixing part is suitable for stopping with the outer peripheral wall of the circular shaft, the adjusting part is suitable for connecting the fixing part and the fixing mechanism 30, and the adjusting part is suitable for moving toward or away from the second bracket 20 when the circular shaft jumps.

[0034] In some embodiments, the first bracket 10 is provided with a first receiving groove 11 open toward the top. The function of the first receiving groove 11 is to provide a placement position for the circular shaft to be measured, and the first receiving groove 11 serves as a support base for the entire clamping assembly 1. The second bracket 20 is located above the first bracket 10. The second bracket 20 can adjust the position of the second bracket 20 relative to the first bracket 10 by rotation. The second bracket 20 also has a second receiving groove 21 open toward the bottom (i.e., the first receiving groove 11). When the second bracket 20 is matched with the first bracket 10, the first receiving groove 11 and the second receiving groove 21 together form a space that can accommodate and fix the circular shaft.

[0035] It is worth noting that one end of the first bracket 10 in the width direction is rotatably connected to one end of the second bracket 20 in the width direction, and the other end of the first bracket 10 in the width direction is provided with a first clamping portion, and the other end of the second bracket 20 in the width direction is provided with a second clamping portion. The first clamping portion cooperates with the second clamping portion to fix the other end of the first bracket 10 in the width direction and the other end of the second bracket 20 in the width direction. Here, the first clamping portion can be constructed as a clamping hole, and the second clamping portion can be constructed as a clamping block, and the clamping block is accommodated in the clamping hole to fix the first bracket 10 and the second bracket 20.

[0036] The fixing mechanism 30 is installed in the clamping assembly 1 through a rotational connection with the second bracket 20. The fixing mechanism 30 includes a fixing part and an adjusting part. The fixing part is suitable for directly contacting the surface of the circular shaft to keep the circular shaft stable (the outer peripheral wall of the circular shaft is respectively stopped against the inner peripheral wall of the first accommodating groove 11, the inner peripheral wall of the second accommodating groove 21 and the fixing part, thereby achieving the fixation of the circular shaft); the adjusting part is responsible for automatically adjusting the position of the fixing part according to the dynamic changes of the circular shaft during rotation (such as jumping or vibration), ensuring that the circular shaft always maintains the best clamping state, while avoiding the circular shaft from damaging the stress structure of the clamping assembly 1 during jumping or vibration, thereby avoiding damage to the clamping assembly 1.

[0037] It can be understood that, through the space formed by the first bracket 10 and the second bracket 20, the circular shaft is firmly confined to a specific area, thereby reducing the influence of external factors on the dynamic balance measurement results of the circular shaft. The design of the fixing mechanism 30 enables the fixing mechanism 30 to flexibly respond to any displacement or vibration that may occur during the high-speed rotation of the circular shaft. In particular, the presence of the adjustment part allows the fixing part to move with the movement of the circular shaft, which not only ensures the fixing stability of the circular shaft, but also reduces the additional stress concentration points caused by hard constraints, avoiding damage to the circular shaft surface or damage to the clamping component 1.

[0038] According to the circular shaft clamping assembly 1 for dynamic balancing testing of the present invention, its fixing portion is connected to the fixing mechanism 30 through the adjusting portion, and the adjusting portion is suitable for moving toward or away from the second bracket 20 when the circular shaft bounces, thereby preventing the clamping assembly 1 from being damaged or damaging the surface of the circular shaft when the circular shaft bounces during the dynamic balancing test, and at the same time ensuring that the clamping assembly 1 can always clamp the circular shaft stably.

[0039] Example 2:

[0040] Based on the first embodiment, the fixing mechanism 30 of this embodiment includes: a first movable rod 311 and a first resetting member 312. The first movable rod 311 is movably connected to the second bracket 20. The first movable rod 311 can be selectively moved in the height direction relative to the second bracket 20. The first movable rod 311 is provided with a first connecting channel 3111 open toward the first bracket 10. The first resetting member 312 is constructed as an adjusting portion. The first resetting member 312 is provided in the first connecting channel 3111. One end of the first resetting member 312 is connected to the first movable rod 311, and the other end of the first resetting member 312 is rotatably connected to the fixing portion.

[0041] It can be understood that the first return member 312 (such as a spring or other elastic material) serves as an adjustment part. When the circular shaft jumps due to imbalance or other reasons, it can relieve the force by stretching and retracting, thereby reducing the pressure on the surface of the circular shaft while maintaining a good clamping state. Moreover, through the height adjustability of the first movable rod 311, it can be adjusted for circular shafts of different diameters or shapes to ensure that the fixing part is always in the best position to apply appropriate clamping force.

[0042] Therefore, the elastic support provided by the first reset member 312 can compensate for the dynamic changes of the circular shaft to a certain extent, thereby improving the stability of the entire testing process. Moreover, the elastic buffering mechanism of the first reset member 312 reduces the wear or damage that may be caused by hard contact, thereby extending the service life of the circular shaft being tested and the service life of the clamping assembly 1.

[0043] Of course, the height adjustability of the first movable rod 311 allows the clamping assembly 1 to better adapt to round shafts of various sizes and types, increasing the flexibility and versatility of the clamping assembly 1. At the same time, the user can easily adjust the position of the first movable rod 311 according to actual needs, so as to quickly set the appropriate clamping conditions, which helps to improve the efficiency of dynamic balancing testing.

[0044] According to some embodiments of the present invention, the fixing portion includes: a first connecting rod 313 and a first clamping jaw 314, one end of the first connecting rod 313 is connected to the other end of the first resetting member 312, the other end of the first connecting rod 313 extends to the outside of the first connecting channel 3111, the first clamping jaw 314 is rotatably connected to the other end of the first connecting rod 313, and the first clamping jaw 314 is suitable for abutting against the outer peripheral wall of the circular shaft.

[0045] It can be understood that when the circular shaft jumps, the first reset member 312 will provide a buffering effect, which is transmitted to the first clamping jaw 314 through the first connecting rod 313, so that the first clamping jaw 314 can respond to the movement of the circular shaft while maintaining a certain clamping force, which helps to reduce the additional stress caused by hard clamping and protect the circular shaft from damage. Of course, the rotational connection mechanism between the first clamping jaw 314 and the first connecting rod 313 allows the first clamping jaw 314 to be fine-tuned according to the actual shape of the circular shaft surface, so as to better fit the circular shaft surface and improve the stability and accuracy of clamping.

[0046] In some embodiments, the second bracket 20 is provided with a connecting hole, the inner circumferential wall of the connecting hole is provided with a first thread, the first movable rod 311 is movably disposed in the connecting hole, and the outer circumferential wall of the first movable rod 311 is provided with a second thread, and the first thread cooperates with the second thread, thereby allowing the first movable rod 311 to rotate relative to the second bracket 20 to achieve height movement of the first movable rod 311 relative to the second bracket 20. Therefore, when the first movable rod 311 moves in the height direction relative to the second bracket 20, since the first clamping jaw 314 can rotate relative to the first connecting rod 313, it can be ensured that the first clamping jaw 314 can always cooperate with the outer circumferential wall of the circular shaft, thereby ensuring that the circular shaft can be stably clamped when the first movable rod 311 is adjusted in height.

[0047] According to some embodiments of the present invention, the inner peripheral wall of the first connecting channel 3111 is provided with a first sliding groove 3112 extending in the height direction, and the outer peripheral wall of the first connecting rod 313 is provided with a first slider 3131, which is movably provided in the first sliding groove 3112.

[0048] In some embodiments, the inner peripheral wall of the first sliding groove 3112 can limit the outer peripheral wall of the first sliding block 3131, so that the first sliding block 3131 can stably move along the extension direction of the first sliding groove 3112, so that the first moving rod 311 can stably move in the height direction relative to the first connecting channel 3111, thereby enhancing the control accuracy and stability of the movement of the first connecting rod 313, and improving the working performance and reliability of the entire clamping assembly 1.

[0049] Embodiment three:

[0050] This embodiment is based on embodiment one, and the fixing mechanism 30 comprises a second moving rod 321, a connecting barrel 322, and a second reset member 323. The second moving rod 321 is rotationally connected with the second support 20. The second moving rod 321 is provided with an open second connecting channel facing the first support 10. The connecting barrel 322 is movably connected with the second moving rod 321. The connecting barrel 322 is selectively accommodated in the second connecting channel. The connecting barrel 322 is provided with an open third connecting channel 3221 facing the first support 10. The second reset member 323 is configured as an adjusting part. The second reset member 323 is arranged in the third connecting channel 3221. One end of the second reset member 323 is connected with the connecting barrel 322. The other end of the second reset member 323 is fixedly connected with the fixing part. It is worth noting that the inner peripheral wall of the second connecting channel is provided with a third thread. The outer peripheral wall of the connecting barrel 322 is provided with a fourth thread. The third thread cooperates with the fourth thread. Thus, the second moving rod 321 rotates relative to the connecting barrel 322 to control the movement of the connecting barrel 322 in the height direction relative to the second moving rod 321, and to control the length size of the connecting barrel 322 accommodated in the second connecting channel.

[0051] In some embodiments, the second moving rod 321 is rotationally connected with the second support 20. The second moving rod 321 is provided with an open second connecting channel facing the first support 10. The second connecting channel is suitable for accommodating the connecting barrel 322. The connecting barrel 322 is movably connected with the second moving rod 321. Thus, the connecting barrel 322 moves up and down in the second connecting channel. The connecting barrel 322 is internally provided with a third connecting channel 3221, which is also open towards the first support 10. The third connecting channel 3221 is used to install the second reset member 323. The second reset member 323 is configured as an adjusting part. The second reset member 323 is suitable for providing elastic support when the circular shaft jumps. The second reset member 323 is installed in the third connecting channel 3221. One end of the second reset member 323 is connected with the connecting barrel 322. The other end of the second reset member 323 is fixedly connected with the fixing part. Thus, when the circular shaft jumps, the second reset member 323 can absorb part of the impact force through its elastic properties, and allows the fixing part to make corresponding adjustments.

[0052] It can be understood that the second movable rod 321 is rotatably connected to the second bracket 20, and the connecting tube 322 can be selectively moved in the height direction relative to the second movable rod 321 and accommodated in the second connecting channel. Since the fixing part is connected to the connecting tube 322 through the adjusting part, the length of the connecting tube 322 extended out or accommodated in the second connecting channel is adjusted to achieve the control of the height position of the fixing part relative to the circular axis. That is, no matter where the fixing part is, the height dimension of the clamping assembly 1 is always a constant value, avoiding increasing the height dimension of the clamping assembly 1 when adjusting the position of the fixing part, thereby ensuring the space occupied by the clamping assembly 1.

[0053] According to some embodiments of the present invention, the fixing part includes: a second connecting rod 324 and a second clamping jaw 325, one end of the second connecting rod 324 is connected to the other end of the second return member 323, the other end of the second connecting rod 324 extends to the outside of the third connecting channel 3221, the second clamping jaw 325 is fixedly connected to the other end of the second connecting rod 324, and the second clamping jaw 325 is suitable for abutting against the outer peripheral wall of the circular shaft.

[0054] In some embodiments, when the circular shaft jumps, the second reset member 323 provides a buffering effect, which is transmitted to the second clamping jaw 325 through the second connecting rod 324, so that the second clamping jaw 325 can respond to the movement of the circular shaft while maintaining a certain clamping force, which helps to reduce the additional stress caused by hard clamping and protect the circular shaft from damage. In addition, the fixed connection mechanism between the second clamping jaw 325 and the second connecting rod 324 ensures that the second clamping jaw 325 will not rotate or shift unnecessarily during operation, thereby improving the stability of clamping.

[0055] According to some embodiments of the present invention, the inner peripheral wall of the third connecting channel 3221 is provided with a second slide groove 3222 extending in the height direction, and the outer peripheral wall of the second connecting rod 324 is provided with a second slider 3241, which is movably provided in the second slide groove 3222.

[0056] In some embodiments, the inner peripheral wall of the second slide groove 3222 can restrict the outer peripheral wall of the second slider 3241, so that the second slider 3241 can stably move along the extension direction of the second slide groove 3222, so that the second moving rod 321 can stably move in the height direction relative to the third connecting channel 3221, thereby enhancing the control accuracy and stability of the movement of the second connecting rod 324, and improving the working performance and reliability of the entire clamping assembly 1.

[0057] Example 4:

[0058] This embodiment provides a clamping device based on the above embodiments, including: a base; a clamping assembly 1, wherein the clamping assembly 1 is constructed as the circular shaft clamping assembly 1 for dynamic balancing testing described in any one of the above embodiments, and the clamping assembly 1 is constructed in two, and the two clamping assemblies 1 are respectively connected to the base, the projections of the two clamping assemblies 1 in the length direction overlap with each other, and the two clamping assemblies 1 are spaced apart from each other in the length direction.

[0059] In some embodiments, the base serves as the basis of the clamping device to provide stable support. The base can bear the weight of the clamping assembly 1 and the circular shaft clamped by the clamping assembly 1, and remain stable during the test. The two clamping assemblies 1 are respectively installed on the base, and the projections of the two clamping assemblies 1 in the length direction overlap with each other, and the two clamping assemblies 1 are spaced apart from each other in the length direction, that is, there is a certain distance between the two clamping assemblies 1 to ensure that the clamping device can clamp different parts of the circular shaft at the same time, thereby achieving more uniform support and more accurate test results.

[0060] It can be understood that by clamping the circular shaft with two clamping assemblies 1, support can be provided at both ends or in the middle of the circular shaft to distribute the force more evenly and reduce local stress concentration, thereby improving the accuracy of the dynamic balance test, while helping to reduce bending or deformation that may be caused by single-point support. Moreover, the design of the two clamping assemblies 1 makes the entire clamping device more stable and can better resist external interference such as vibration or impact. Of course, the spacing between the two clamping assemblies 1 can be adjusted according to the length of the circular shaft, which increases the versatility and flexibility of the clamping device.

[0061] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A circular shaft clamping assembly for dynamic balancing test, characterized in that: include: a first bracket, wherein the first bracket is formed with a first receiving groove open toward the top; a second bracket, the second bracket being rotatably disposed on the top of the first bracket, the second bracket being formed with a second receiving groove facing the first receiving groove, the first receiving groove and the second receiving groove being used together to receive the circular shaft; A fixing mechanism, the fixing mechanism is rotatably connected to the second bracket, the fixing mechanism is provided with a fixing portion and an adjusting portion, the fixing portion is suitable for abutting against the outer peripheral wall of the circular shaft, the adjusting portion is suitable for connecting the fixing portion and the fixing mechanism, and the adjusting portion is suitable for moving toward or away from the second bracket when the circular shaft jumps.

2. The circular shaft clamping assembly for dynamic balancing test according to claim 1, characterized in that: The fixing mechanism comprises: a first movable rod, the first movable rod being movably connected to the second bracket, the first movable rod being selectively movable in a height direction relative to the second bracket, the first movable rod being provided with a first connecting passage open toward the first bracket; A first restoring member, the first restoring member is constructed as the adjusting portion, the first restoring member is arranged in the first connecting channel, one end of the first restoring member is connected to the first moving rod, and the other end of the first restoring member is rotatably connected to the fixing portion.

3. The circular shaft clamping assembly for dynamic balancing test according to claim 2, characterized in that: The fixing portion includes: a first connecting rod, one end of which is connected to the other end of the first restoring member, and the other end of which extends outside the first connecting channel; The first clamping jaw is rotatably connected to the other end of the first connecting rod, and the first clamping jaw is suitable for abutting against the outer peripheral wall of the circular shaft.

4. The circular shaft clamping assembly for dynamic balancing test according to claim 3, characterized in that: The inner peripheral wall of the first connecting channel is provided with a first sliding groove extending in the height direction, and the outer peripheral wall of the first connecting rod is provided with a first sliding block, and the first sliding block is movably provided in the first sliding groove.

5. The circular shaft clamping assembly for dynamic balancing test according to claim 1, characterized in that: The fixing mechanism comprises: a second movable rod, the second movable rod being rotatably connected to the second bracket, the second movable rod being provided with a second connecting passage open toward the first bracket; a connecting tube, the connecting tube being movably connected to the second movable rod, the connecting tube being selectively received in the second connecting passage, and the connecting tube being provided with a third connecting passage open toward the first bracket; The second restoring member is constructed as the adjusting portion, the second restoring member is arranged in the third connecting channel, one end of the second restoring member is connected to the connecting tube, and the other end of the second restoring member is fixedly connected to the fixing portion.

6. The circular shaft clamping assembly for dynamic balancing test according to claim 5, characterized in that: The fixing portion includes: a second connecting rod, one end of the second connecting rod being connected to the other end of the second restoring member, and the other end of the second connecting rod extending outside the third connecting channel; The second clamping jaw is fixedly connected to the other end of the second connecting rod, and the second clamping jaw is suitable for abutting against the outer peripheral wall of the circular shaft.

7. The circular shaft clamping assembly for dynamic balancing test according to claim 6, characterized in that: The inner peripheral wall of the third connecting channel is provided with a second sliding groove extending in the height direction, and the outer peripheral wall of the second connecting rod is provided with a second sliding block, and the second sliding block is movably provided in the second sliding groove.

8. A clamping device, characterized in that: include: base; The clamping assembly is constructed as a circular shaft clamping assembly for dynamic balancing testing as described in any one of claims 1 to 7, and the clamping assembly is constructed in two, the two clamping assemblies are respectively connected to the base, the projections of the two clamping assemblies in the length direction overlap with each other, and the two clamping assemblies are spaced apart from each other in the length direction.

Images