Self-balancing device for heavy equipment

Abstract

The self-balancing device for the heavy equipment comprises a base, an expansion bolt, a supporting plate and a limiting plate, the expansion bolt is arranged on the base, and the expansion bolt is arranged in the ground in a penetrating mode; the supporting plate is arranged on the base and abuts against the bottom of the machine tool. The two limiting plates are arranged on the base, and the two limiting plates abut against the two sides of a machine tool correspondingly. The self-balancing device has the beneficial effects that through surface bearing of the supporting plates and lateral constraint of the limiting plates, vertical loads and horizontal vibration stress borne by traditional bolts are dispersed to the whole base, the possibility of deformation and damage of the self-balancing device is reduced, and the self-balancing device is more stable in performance. And the subsequent moving difficulty is reduced.

Description

Technical Field

[0001] This invention relates to the field of machine tools, and more specifically to a self-balancing device for heavy equipment. Background Technology

[0002] As core equipment in the manufacturing industry, the machining accuracy of machine tools directly determines product quality. With the increasing demands for precision in high-end manufacturing, the support stability of machine tools has become a key influencing factor. Machine tool legs, as the core components connecting the machine tool to the ground, undertake three main functions: bearing the weight of the machine body, adjusting level accuracy, and damping vibration transmission.

[0003] Chinese utility model patent application CN206335360U discloses a folding support leg for a machine tool, comprising a machine tool base with multiple legs hinged to the lower end of the base. Each support leg includes a connecting sleeve, a screw, and a foot cup. The connecting sleeve is hollow inside and has a through hole at its bottom that mates with the screw. A welded nut that mates with the screw is fixedly welded inside the connecting sleeve. A height adjustment nut is fixedly fixed on the screw. A hook and a reinforcing block are also provided at the lower end of the machine tool base. The connecting sleeve and the reinforcing block are connected by a hinge. The foot cup includes a support column and a connecting frustum that connects to the screw. The upper surface of the connecting frustum is fixedly connected to the lower surface of the height adjustment nut.

[0004] The aforementioned technologies have the following drawbacks: vibrations occur during machine tool operation, the sleeve is connected to the bottom of the machine tool, and the bolt thread is connected inside the sleeve. Over time, the bolt is prone to deformation, making disassembly and assembly very troublesome and affecting the subsequent relocation of the machine tool. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a self-balancing device for heavy equipment, which solves the technical problem of easy deformation of bolts on the support legs during machine tool operation in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention provides a self-balancing device for heavy equipment, including a base; Expansion bolts, which are mounted on the base and pass through the ground; A support plate, the support plate being disposed on a base and abutting against the bottom of the machine tool; and, Two limiting plates are disposed on the base and respectively abut against both sides of the machine tool.

[0007] In some embodiments, the self-balancing device further includes a plurality of force-receiving grooves for accommodating a wrench, the plurality of force-receiving grooves being arranged around the periphery of the support plate.

[0008] In some embodiments, the self-balancing device further includes a screw connected to the bottom of the support plate and threadedly connected to the base.

[0009] In some embodiments, the self-balancing device further includes limiting bolts, two of which are threadedly connected to two limiting plates and abut against both sides of the machine tool.

[0010] In some embodiments, the self-balancing device further includes an adjustment mechanism, wherein the limiting plate is rotatably connected to the base, and the adjustment mechanism is used to adjust the angle of the limiting plate so that the limiting plate is parallel to the side of the machine tool.

[0011] In some embodiments, the adjustment mechanism includes a drive assembly and a reset assembly. The drive assembly includes a plug rod, a first wedge, and a second wedge. The limiting plate is provided with a plug hole, and the plug rod is slidably connected to the plug hole. The base is provided with a plurality of slots for accommodating the plug rod at intervals along the rotation direction of the limiting plate. The first wedge is connected to a limiting bolt, and the second wedge is connected to the plug rod. When the limiting bolt rotates, the first wedge abuts against the second wedge, so that the plug rod enters the corresponding slot.

[0012] In some embodiments, the reset assembly includes a spring, one end of which is connected to the insert rod and the other end of which is connected to a limiting plate. The spring is in a stretched state and causes the insert rod to slide away from the slot.

[0013] In some embodiments, the self-balancing device further includes a shock-absorbing and anti-loosening mechanism, which includes an elastic ball, an upper half cover, and a lower half cover. The upper half cover is connected to the end of a limiting bolt, and the lower half cover is attracted to and abuts against the side wall of the machine tool by a magnet. The elastic ball is rotatably connected between the upper half cover and the lower half cover.

[0014] In some embodiments, the shock-absorbing and anti-loosening mechanism further includes a friction pad, which is wrapped around the outside of the elastic ball.

[0015] In some embodiments, the shock-absorbing and anti-loosening mechanism further includes deformation grooves, and a plurality of deformation grooves are respectively disposed on the side of the upper half cover and the lower half cover that are close to each other.

[0016] Compared with the prior art, the beneficial effects of the present invention include: by using the surface bearing of the support plate and the lateral constraint of the limiting plate, the vertical load and horizontal vibration stress borne by the traditional bolts are distributed to the entire base, reducing the possibility of deformation damage to the self-balancing device and reducing the difficulty of subsequent relocation. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of the machine tool and self-balancing device provided by the present invention; Figure 2 This invention provides Figure 1 Enlarged view of the local structure at point A in the middle from a first-person perspective; Figure 3 This invention provides Figure 1 Enlarged view of the local structure at point A from a second perspective; Figure 4 This invention provides Figure 1 A first-view partial structural cross-sectional view at point A in the middle; Figure 5 This invention provides Figure 1 A partial structural cross-sectional view from a second perspective at point A in the middle.

[0018] Explanation of reference numerals in the attached drawings: 1. Base; 11. Expansion bolt; 2. Support plate; 21. Force groove; 22. Screw; 3. Limiting plate; 31. Limiting bolt; 32. Rotating rod; 4. Machine tool; 5. Adjustment mechanism; 51. Drive assembly; 511. Insert rod; 512. First wedge; 513. Second wedge; 514. Insertion hole; 515. Slot; 52. Reset assembly; 521. Spring; 6. Shock absorption and anti-loosening mechanism; 61. Elastic ball; 62. Upper half cover; 63. Lower half cover; 64. Friction plate; 65. Deformation groove. Detailed Implementation

[0019] 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 merely illustrative and not intended to limit the invention.

[0020] This invention provides a self-balancing device for heavy equipment, the structure of which is as follows: Figure 1 - Figure 5 As shown, it includes a base 1, expansion bolts 11, support plate 2, and limiting plate 3.

[0021] The expansion bolt 11 is provided on the base 1 and the expansion bolt 11 passes through the ground.

[0022] The support plate 2 is mounted on the base 1 and abuts against the bottom of the machine tool 4.

[0023] The two limiting plates 3 are disposed on the base 1, and the two limiting plates 3 respectively abut against the two sides of the machine tool 4.

[0024] During use, expansion bolts 11 penetrate the base 1 and embed into the concrete ground. The expansion plates of the bolts mechanically engage with the soil, rigidly fixing the base 1 to the ground and preventing overall displacement of the base 1 due to machine tool 4 vibration. Support plate 2 is horizontally positioned on top of the base 1, directly abutting against the support surface at the bottom of the machine tool 4, evenly distributing the weight of the machine tool 4 to the base 1, which then transmits it to the ground. The inner sides of the two limiting plates 3 are tightly abutting against the side walls of the machine tool 4, forming lateral constraints. When the machine tool 4 vibrates horizontally during operation, the limiting plates 3 rigidly restrict the left-right swaying of the machine tool 4, preventing vibration energy from concentrating at the bolted connections.

[0025] In this invention, the vertical load and horizontal vibration stress borne by the traditional bolts are distributed to the entire base 1 through the surface bearing of the support plate 2 and the lateral constraint of the limiting plate 3, which reduces the possibility of deformation damage to the self-balancing device and reduces the difficulty of subsequent relocation.

[0026] For easy adjustment of the height of support plate 2, please refer to... Figure 1 In a preferred embodiment, the self-balancing device further includes a plurality of force-receiving grooves 21 for accommodating a wrench, the plurality of force-receiving grooves 21 being arranged around the periphery of the support plate 2.

[0027] When the self-balancing device needs to be installed, disassembled, or adjusted, the wrench can be inserted into the force groove 21, providing the operator with a stable point of force application. Compared to the smooth periphery of the support plate, the force groove 21 effectively prevents the wrench from slipping, ensuring a more reliable force application process and reducing the risk of operational errors.

[0028] To adjust the height of the self-balancing device, please refer to... Figure 2 In a preferred embodiment, the self-balancing device further includes a screw 22, which is connected to the bottom of the support plate 2 and threadedly connected to the base 1.

[0029] In use, the threaded connection between the screw 22 and the base 1 provides precise linear adjustment capability. By rotating the support plate 2, the height adjustment range of the support plate 2 can be achieved, allowing the self-balancing device to quickly adapt to uneven ground.

[0030] To adapt to different machine tool models, please refer to [reference 4]. Figure 2 In a preferred embodiment, the self-balancing device further includes limiting bolts 31, two of which are threadedly connected to two limiting plates 3 and respectively abut against both sides of the machine tool 4.

[0031] During use, the width of the base 1 varies between different models of machine tools 4. The adjustable stroke of the limit bolt 31 can flexibly compensate for this deviation. There is no need to replace the limit plate 3 or the base 1, which broadens the range of machine tool models that the self-balancing device is applicable to and reduces the cost of dedicated self-balancing devices.

[0032] To improve the stability of the self-balancing device, please refer to... Figure 3 In a preferred embodiment, the self-balancing device further includes an adjustment mechanism 5. The limiting plate 3 is rotatably connected to the base 1 along the rotating rod 32. The adjustment mechanism 5 is used to adjust the angle of the limiting plate 3 so that the limiting plate 3 is parallel to the side of the machine tool 4.

[0033] During use, the side of the machine tool 4 base 1 may tilt due to manufacturing errors or installation deformation. The traditional fixed-angle limiting plate 3 is prone to line contact or point contact with the machine tool 4, resulting in stress concentration at the contact point. The adjustment mechanism 5 makes the limiting plate 3 completely parallel to the side of the machine tool 4. When the limiting plate 3 is parallel and attached to the side of the machine tool 4, the preload of the limiting bolt 31 can form a uniform lateral clamping force. When the machine tool 4 is running at high speed, the lateral vibration will be dispersed to the entire contact surface, rather than concentrated at a certain contact point, thus reducing the lateral amplitude of the machine tool 4.

[0034] To adjust the angle of limit plate 3, please refer to... Figure 4 In a preferred embodiment, the adjustment mechanism 5 includes a drive assembly 51 and a reset assembly 52. ​​The drive assembly 51 includes a plug rod 511, a first wedge 512, and a second wedge 513. The limiting plate 3 has a plug hole 514 along its height direction. The plug hole 514 is off-axis from the rotating rod 32 of the limiting plate 3. The plug rod 511 is slidably connected to the plug hole 514. The base 1 has a plurality of slots 515 spaced apart along the rotation direction of the limiting plate 3 for accommodating the plug rod 511. The first wedge 512 is coaxially fixedly connected to the limiting bolt 31. The second wedge 513 is fixedly connected to the top of the plug rod 511. When the limiting bolt 31 rotates, the first wedge 512 abuts against the second wedge 513 so that the plug rod 511 enters the corresponding slot 515.

[0035] During use, when the limiting bolt 31 is not tightened, the first wedge 512 and the second wedge 513 are not tightly engaged. The elastic force of the reset assembly 52 pushes the insertion rod 511 to slide towards the limiting bolt 31, and the end of the insertion rod 511 completely exits the slot 515 of the base 1. At this time, the limiting plate 3 can rotate freely, and the operator can manually adjust the angle of the limiting plate 3 until it is parallel to the side of the machine tool 4. During adjustment, the limiting bolt 31 moves axially towards the machine tool 4, and the first wedge 512 at its end moves forward accordingly, and the inclined surface gradually presses against the inclined surface of the second wedge 513. The axial thrust of the first wedge 512 is converted into a lateral force perpendicular to the inclined surface, pushing the second wedge 513 to drive the insertion rod 511 to overcome the elastic force of the reset assembly 52 and slide along the insertion hole 514 towards the base 1. The end of the insertion rod 511 is gradually inserted into the corresponding angle slot 515 on the base 1. When the limiting bolt 31 abuts against the machine tool 4, the insertion rod 511 is fully inserted into the slot 515. Through the rigid engagement between the insertion rod 511 and the slot 515, the rotational freedom of the limiting plate 3 is restricted, thus fixing the angle. If the angle needs to be readjusted, the limiting bolt 31 is rotated. The limiting bolt 31 drives the first wedge 512 to retract and separate from the second wedge 513, relieving the pressure on the second wedge 513. The reset component 52 releases the elastic force, pushing the insertion rod 511 to slide away from the base 1. The end of the insertion rod 511 exits from the slot 515, and the limiting plate 3 returns to a rotatable state. Repeating the above steps can adjust to a new angle and fix it.

[0036] To reset the plug 511, please refer to... Figure 4 In a preferred embodiment, the reset assembly 52 includes a spring 521, one end of which is connected to the insertion rod 511 and the other end of which is connected to the limiting plate 3. The spring 521 is in a stretched state, and the spring 521 causes the insertion rod 511 to slide away from the slot 515.

[0037] In use, one end of the spring 521 is fixed to the central boss of the insertion rod 511 via a hook, and the other end is connected to the inner wall of the limiting plate 3. In the initial state, the spring 521 is pre-stretched, generating tension. At this time, the direction of the tension is along the axis of the insertion rod 511, pointing away from the slot 515 of the base 1, so that the end of the insertion rod 511 and the slot 515 of the base 1 maintain a gap, and the limiting plate 3 can swing freely around the rotation axis, in the unlocked state to be adjusted.

[0038] To reduce vibration of machine tool 4 and loosening of limit bolt 31, please refer to... Figure 4In a preferred embodiment, the self-balancing device further includes a shock-absorbing and anti-loosening mechanism 6, which includes an elastic ball 61, an upper half cover 62, and a lower half cover 63. The upper half cover 62 is connected to the end of the limiting bolt 31, and the lower half cover 63 is attracted by a magnet and abuts against the side wall of the machine tool 4. The elastic ball 61 is rotatably connected between the upper half cover 62 and the lower half cover 63.

[0039] In use, the elastic ball 61 has its own elastic deformation capability. When it is rotatably connected between the upper half cover 62 and the lower half cover 63, it can absorb part of the vibration energy generated by the machine tool 4 during operation through its own compression and rebound. At the same time, the rotational cooperation between the elastic ball 61 and the upper half cover 62 and the lower half cover 63 can transform rigid contact into flexible buffering, reducing the direct transmission of vibration from the machine tool 4 to other components through the limit bolt 31, thereby reducing the resonance or abnormal noise caused by vibration in the overall device and protecting the stability of the machine tool 4 and related structures.

[0040] Vibration of the machine tool 4 is the main cause of loosening of the limit bolt 31. The vibration damping and anti-loosening mechanism 6, through the buffering effect of the elastic ball 61, can significantly reduce the periodic impact force of vibration on the limit bolt 31, reducing the probability of "fatigue loosening" of the limit bolt 31 due to long-term vibration. In addition, the upper half cover 62 is connected to the end of the limit bolt 31, and the lower half cover 63 is attracted and abutted against the side wall of the machine tool 4 by a magnet, forming an auxiliary limiting structure for the limit bolt 31, further restricting the axial or radial displacement of the limit bolt 31 during vibration, and indirectly enhancing the tightness of the connection of the limit bolt 31.

[0041] To further improve the shock absorption effect, please refer to Figure 4 In a preferred embodiment, the shock-absorbing and anti-loosening mechanism 6 further includes a friction plate 64, which is wrapped around the outside of the elastic ball 61.

[0042] In use, the friction plate 64 is made of asbestos. Its inner side is tightly fitted to the surface of the elastic ball 61, and its outer side contacts the inner walls of the upper half cover 62 and the lower half cover 63, respectively. When the machine tool 4 vibrates, the elastic ball 61 deforms due to the force, causing the friction plate 64 to slide relative to the inner walls of the upper and lower half covers 63. During the sliding process, the friction between the friction plate 64 and the cover consumes some of the vibration energy. This damping effect can quickly attenuate the high-frequency vibration of the elastic ball 61 itself and avoid the rebound resonance caused by the repeated deformation of the elastic ball 61.

[0043] To further improve the shock absorption effect, please refer to Figure 5 In a preferred embodiment, the shock-absorbing and anti-loosening mechanism 6 further includes deformation grooves 65, and a plurality of deformation grooves 65 are respectively disposed on the side of the upper half cover 62 and the lower half cover 63 that are close to each other.

[0044] In use, the upper half-cover 62 and the lower half-cover 63 are made of cold-rolled steel plates, which are inherently rigid. If the deformation groove 65 is not provided, local rigid impacts are likely to occur under stress. The deformation groove 65 weakens the structural strength of the contact edge of the half-cover. When the machine tool 4 generates downward pressure or vibration, the upper half-cover 62 and the lower half-cover 63 undergo slight bending deformation along the deformation groove 65, forming a double buffer with the compression deformation of the elastic ball 61. When the machine tool 4 is subjected to lateral force, the upper half-cover 62 and the lower half-cover 63 can tilt laterally along the deformation groove 65. Combined with the lateral bending of the elastic ball 61, the vibration attenuation rate in the horizontal direction is increased.

[0045] To better understand this invention, the following is combined with... Figure 1 - Figure 5 The working principle of a self-balancing device for heavy equipment according to the present invention is described in detail as follows: Expansion bolts 11 penetrate the base 1 and are embedded in the ground concrete. Through the mechanical engagement of the bolt expansion plates with the soil, the base 1 is rigidly fixed to the ground, preventing the machine tool 4 from vibrating and causing overall displacement of the base 1. Support plates 2 are horizontally positioned at the top of the base 1, directly abutting against the support surface at the bottom of the machine tool 4, evenly distributing the weight of the machine tool 4 to the base 1, which then transmits it to the ground. The inner sides of the two limiting plates 3 are tightly abutting against the side walls of the machine tool 4, forming lateral constraints. When the machine tool 4 vibrates horizontally during operation, the limiting plates 3, through rigid contact, restrict the left and right swaying of the machine tool 4, preventing vibration energy from concentrating at the bolt connection points.

[0046] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A self-leveling device for heavy equipment, characterized by, The self-balancing device comprises a base (1), an expansion bolt (11) arranged on the base (1) and penetrating into the ground, a support plate (2) arranged on the base (1) and abutting against the bottom of a machine tool (4), and two limiting plates (3) arranged on the base (1) and abutting against the two sides of the machine tool (4) respectively. The self-balancing device further comprises a plurality of force receiving grooves (21) for accommodating a wrench, which are annularly arranged on the periphery of the support plate (2). The self-balancing device further comprises a screw rod (22) connected to the bottom of the support plate (2) and threadedly connected to the base (1). The self-balancing device further comprises two limiting bolts (31) threadedly connected to the two limiting plates (3) respectively and abutting against the two sides of the machine tool (4) respectively. The self-balancing device further comprises an adjusting mechanism (5) for adjusting the angle of the limiting plate (3) so as to make the limiting plate (3) parallel to the side surface of the machine tool (4).

2. A self-leveling device for heavy equipment as set forth in claim 1, wherein, The adjusting mechanism (5) comprises a driving assembly (51) and a reset assembly (52). The driving assembly (51) comprises a plug rod (511), a first wedge block (512) and a second wedge block (513). The limiting plate (3) is provided with a plug hole (514). The plug rod (511) is slidingly connected in the plug hole (514). The base (1) is provided with a plurality of plug grooves (515) for accommodating the plug rod (511) and spaced apart along the rotation direction of the limiting plate (3). The first wedge block (512) is connected to the limiting bolt (31). The second wedge block (513) is connected to the plug rod (511). When the limiting bolt (31) rotates, the first wedge block (512) abuts against the second wedge block (513) so as to make the plug rod (511) enter the corresponding plug groove (515).

3. The self-leveling device for heavy equipment according to claim 1, wherein, The reset assembly (52) comprises a spring (521). One end of the spring (521) is connected to the plug rod (511). The other end of the spring (521) is connected to the limiting plate (3). The spring (521) is in a stretched state and makes the plug rod (511) tend to slide away from the plug groove (515).

4. The self-leveling device for heavy equipment according to claim 1, wherein, The self-balancing device further comprises a damping and anti-loosening mechanism (6). The damping and anti-loosening mechanism (6) comprises an elastic ball (61), an upper half cover (62) and a lower half cover (63). The upper half cover (62) is connected to the end of the limiting bolt (31). The lower half cover (63) is attracted to the side wall of the machine tool (4) by a magnet. The elastic ball (61) is rotatably connected between the upper half cover (62) and the lower half cover (63).

5. The self-leveling device for heavy equipment according to claim 1, wherein, The damping and anti-loosening mechanism (6) further comprises a friction plate (64) wrapped outside the elastic ball (61).

6. A self-leveling device for heavy equipment as defined in claim 5, wherein ​ 7. A self-leveling device for heavy equipment as defined in claim 6, wherein ​ 8. The self-leveling device for heavy equipment of claim 1, wherein, ​ 9. A self-leveling device for heavy equipment as defined in claim 8, wherein, ​ 10. The self-leveling device for heavy equipment of claim 8, wherein, The damping anti-loosening mechanism (6) further comprises deformation grooves (65), and a plurality of deformation grooves (65) are respectively arranged on the side of the upper half cover (62) close to the lower half cover (63).

Images