Adjustable vibration reduction counterweight device

Abstract

The present application relates to an adjustable vibration-damping counterweight device, which relates to the field of mechanical engineering technology and is installed on mechanical equipment. The housing includes a top cover and a side cover. Some of the adjustment modules are arranged vertically, and the other parts are arranged horizontally. Each adjustment module includes multiple support rods and multiple superimposed weights, and each support rod is provided with multiple first vibration-damping pads. When the center of mass position, natural frequency, and damping need to be changed, this can be achieved by increasing or decreasing the number of weights in the adjustment modules, changing the position of the weights in the adjustment modules, increasing or decreasing the number of first vibration-damping pads, and replacing the type of first vibration-damping pads. The vibration-damping counterweight device of the present application can make the natural frequency and damping of the vibration-damping counterweight device reach a state that meets the vibration-damping requirements of the mechanical equipment, and make the center of mass of the mechanical equipment equipped with the vibration-damping counterweight device reach a state that meets the use requirements of the mechanical equipment.

Description

Technical Field

[0001] The present application relates to the field of mechanical engineering technology, and in particular to an adjustable vibration-damping counterweight device. Background Art

[0002] For some mechanical equipment, in some special working conditions, the mechanical equipment will face the problem of resonance caused by external excitation, and the resonance will cause damage to the mechanical equipment or loss of mechanical equipment accuracy, and the resonance is mainly determined by the natural frequency and damping of the mechanical equipment. At the same time, based on specific mechanical equipment, the center of mass position is not at the geometric center of the mounting interface, which will directly cause the mechanical equipment to face the problem of line-angle coupling during movement. Based on specific rotating mechanical equipment, the center of mass position is not on the rotating axis, which will directly cause the mechanical equipment to face the problem of increased rotational resistance torque during movement.

[0003] In the related art, there are two main situations for solving the resonance problem and the center of mass problem during the operation of mechanical equipment. In the first situation, a vibration reduction device is installed on the equipment that has not been designed for vibration reduction. In the second situation, the vibration reduction device is replaced on the mechanical equipment that has been designed for vibration reduction.

[0004] However, whether it is to supplement or replace the vibration damping device, the mechanical equipment either needs to add additional installation interfaces for the vibration damping device, such as lugs, etc.; or it needs to add additional adapter plates to the mechanical equipment that has already fixed the installation interface; for large-scale mechanical equipment, in order to ensure the vibration reduction performance, it is necessary to match the large-scale vibration damping device, and its corresponding installation interface or adapter plate needs to occupy a large additional space, which usually requires a complete redesign and planning for mechanical equipment with limited space. At the same time, whether it is to supplement or replace the new vibration damping device, the new vibration damping device needs to be repeatedly disassembled and tested to obtain the required natural frequency, damping and center of mass position, and usually needs to be disassembled as a whole, which requires a large workload; and the new vibration damping device adds additional costs from design to production, and then to processing and installation. Summary of the invention

[0005] The embodiment of the present application provides an adjustable vibration-damping counterweight device, which can be easily installed on mechanical equipment. By changing the installation position of the vibration-damping counterweight device and adjusting the internal adjustment module of the vibration-damping counterweight device, the natural frequency and damping of the vibration-damping counterweight device can reach a state that meets the vibration reduction requirements of the mechanical equipment, and the center of mass of the mechanical equipment equipped with the vibration-damping counterweight device can reach a state that meets the use requirements of the mechanical equipment.

[0006] The present application provides an adjustable vibration reduction counterweight device, which is installed on mechanical equipment and includes a housing, which includes a detachable top cover and side covers;

[0007] A plurality of adjustment modules are divided into two parts that do not interfere with each other, one part is vertically arranged in the shell, and the other part is horizontally arranged in the shell; each of the adjustment modules comprises a plurality of support rods and a plurality of superimposed weights, the plurality of support rods surround the superimposed weights, and a plurality of first vibration damping pads are sleeved on each support rod;

[0008] When the center of mass position of the mechanical equipment on which the vibration-damping counterweight device is installed needs to be changed, the number of weights in several adjustment modules is increased or decreased, and the position of the weights in the adjustment modules is changed; when the natural frequency of the vibration-damping counterweight device needs to be changed, the number of first vibration-damping pads and the number of weights are increased or decreased; when the damping of the vibration-damping counterweight device needs to be changed, the type of the first vibration-damping pad is replaced.

[0009] In some embodiments, the bottom of the shell has four mounting feet for docking with mechanical equipment, and each mounting foot has a mounting hole for accommodating a mounting member.

[0010] In some embodiments, the vibration-damping weight device includes a plurality of first vibration-damping pads corresponding to different damping coefficients, and the first vibration-damping pads are all made of silicone rubber.

[0011] In some embodiments, each of the adjustment modules includes a rectangular bearing support, four parallel support rods and two nuts; the bearing support is arranged parallel to the top cover or the side cover, and the four support rods vertically penetrate the four corners of the bearing support; each of the support rods is provided with the first vibration damping pad on one side of the bearing support and the second vibration damping pad on the other side; the two nuts match the support rod threads and clamp all the vibration damping pads and the bearing support in the middle.

[0012] In some embodiments, each of the support rods is also equipped with a conical pressing block, a terminal is set at one end of each of the support rods, and the other end penetrates the top cover or the side cover and is fixed with the conical pressing block, and the terminal is fixed to the shell by a fastening screw.

[0013] In some embodiments, the first vibration damping pad and the second vibration damping pad are both cylindrical, and the second vibration damping pad is longer than the first vibration damping pad, and one second vibration damping pad and six first vibration damping pads are disposed on each support rod.

[0014] In some embodiments, two vibration-damping pads are further provided on each support rod, one of the vibration-damping pads is provided between the second vibration-damping pad and the nut, and the other vibration-damping pad is provided between one of the outermost first vibration-damping pads and the nut.

[0015] In some embodiments, the plurality of weights are disposed in the center of the four support rods, and are located on a side of the bearing support facing the top cover or the side cover; and the plurality of weights are detachably fixedly connected in pairs.

[0016] In some embodiments, each of the weights is provided with a stepped internal hexagonal slot and an internal threaded hole, and further includes an external stud; the diameter of the internal threaded hole is smaller than the diameter of the inscribed circle of the internal hexagonal slot; the external stud extends outward from the side opposite to the internal hexagonal slot, and the external stud is coaxially arranged with the internal threaded hole, and the length of the external stud is greater than the depth of the internal hexagonal slot and less than the sum of the depths of the internal hexagonal slot and the internal threaded hole.

[0017] In some embodiments, a plurality of adjustment windows are provided on the side wall of the shell, and the adjustment windows are used to change the position of the weight in the adjustment module without removing the top cover and the side cover.

[0018] The beneficial effects of the technical solution provided by this application include:

[0019] The embodiment of the present application provides an adjustable vibration-damping counterweight device, which mainly includes a shell and a plurality of adjustment modules, a part of the adjustment modules are arranged vertically, and another part of the adjustment modules are arranged horizontally, each adjustment module includes a support rod, a weight and a plurality of first vibration-damping pads, and by increasing or decreasing the number of weights in the plurality of adjustment modules, changing the position of the weights in the adjustment modules, increasing or decreasing the number of first vibration-damping pads, and changing the type of first vibration-damping pads, the natural frequency and damping of the vibration-damping counterweight device can reach a state that meets the vibration-damping requirements of the mechanical equipment, so that the center of mass of the mechanical equipment equipped with the vibration-damping counterweight device can reach a full range. The state that meets the use requirements of the mechanical equipment (specifically refers to the coincidence of the center of mass with the rotation axis of the mechanical equipment, for example, the coincidence of the center of mass and the geometric center of the installation interface of the mechanical equipment); the vibration reduction counterweight device of the present application is integrated and can be easily installed on the mechanical equipment without the need for additional installation interfaces or adapter plates, and does not occupy additional space; when adjusting the center of mass, natural frequency and damping, there is no need to repeatedly disassemble and assemble the vibration reduction counterweight device as a whole. It is only necessary to fine-tune the internal structure of the vibration reduction counterweight device after the vibration reduction counterweight device is installed, which greatly reduces the workload of disassembly and assembly and improves the adjustment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 An exploded view of a vibration reduction counterweight device provided in an embodiment of the present application;

[0022] Figure 2 An exploded diagram of the adjustment module provided in an embodiment of the present application;

[0023] Figure 3 A front schematic diagram of a vibration reduction counterweight device provided in an embodiment of the present application;

[0024] Figure 4 A side schematic diagram of a vibration reduction counterweight device provided in an embodiment of the present application;

[0025] Figure 5 A front view of a weight provided in an embodiment of the present application;

[0026] Figure 6 A schematic diagram of the back side of a weight provided in an embodiment of the present application;

[0027] Figure numerals: 1. shell; 2. top cover; 3. side cover; 4. bearing support; 5. weight; 6. support rod; 7. first vibration damping pad; 8. second vibration damping pad; 9. vibration damping pad pressure block; 10. nut; 11. conical pressure block; 12. fastening screw; 51. internal threaded hole; 52. internal hexagonal groove; 53. external stud; 100. adjustment module; 101. mounting foot; 102. adjustment window. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] like Figure 1 As shown, the present application discloses an embodiment of an adjustable vibration-damping counterweight device, which is installed on mechanical equipment and includes a housing 1 and a plurality of adjustment modules 100; the housing 1 includes a detachable top cover 2 and a side cover 3. The plurality of adjustment modules 100 are divided into two parts that are independent of each other and do not interfere with each other, one part is vertically arranged in the housing 1, and the other part is horizontally arranged in the housing 1. Each adjustment module 100 includes a plurality of support rods 6 and a plurality of superimposed weights 5, the plurality of support rods 6 surround the superimposed weights 5, and a plurality of first vibration-damping pads 7 are sleeved on each support rod 6.

[0030] After the vibration reduction counterweight device is installed on the mechanical equipment, the mechanical equipment and the vibration reduction counterweight device need to be considered comprehensively; when the center of mass position of the mechanical equipment installed with the vibration reduction counterweight device needs to be changed, the number of weights 5 in the adjustment modules 100 is increased or decreased, and the position of the weights 5 in the adjustment modules 100 is changed. Specifically, the specific process of adjusting the center of mass position of the mechanical equipment installed with the vibration reduction counterweight device is divided into three types, one is coarse adjustment, which is directly achieved by increasing or decreasing the number of adjustment modules 100 arranged horizontally or vertically, and changing the mass of a larger unit to achieve coarse adjustment of the center of mass position; the first is fine adjustment, which is achieved by increasing or decreasing the number of weights 5 in the adjustment module 100, and changing the mass of a smaller unit to achieve fine adjustment of the center of mass position; the second is fine adjustment, which is achieved by changing the position of the weights 5 in the adjustment module 100 to achieve fine adjustment of the center of mass position. For specific mechanical equipment, the adjustment goal is to make the center of mass of the mechanical equipment equipped with a vibration-damping and counterweight device coincide with the geometric center of the installation interface, so as to avoid line-angle coupling problems during the movement of the mechanical equipment; for specific rotating mechanical equipment, the adjustment goal is to make the center of mass of the mechanical equipment equipped with a vibration-damping and counterweight device fall on the rotating axis, so as to avoid increased rotational resistance torque during the movement of the mechanical equipment.

[0031] When the natural frequency of the vibration-damping counterweight device needs to be changed, it can be adjusted by increasing or decreasing the number of first vibration-damping pads 7 and the number of weights 5; specifically, the adjustment of the natural frequency is related to the weight and stiffness of the vibration-damping counterweight device. The weight of the vibration-damping counterweight device can be adjusted by increasing or decreasing the number of weights 5, and the stiffness of the vibration-damping counterweight device can be adjusted by increasing or decreasing the number of first vibration-damping pads 7.

[0032] When the damping of the vibration-damping counterweight device needs to be changed, the type of the first vibration-damping pad 7 and / or the second vibration-damping pad 8 is replaced, and the damping of the vibration-damping counterweight device is adjusted by changing the damping coefficient of the first vibration-damping pad 7 and / or the second vibration-damping pad 8.

[0033] In the drawings of the present application, only the situation in which two adjustment modules 100 are arranged vertically and one adjustment module 100 is arranged horizontally is shown; however, in actual design, the adjustment modules 100 of the vibration-damping and counterweight device in two directions can be arbitrarily matched.

[0034] like Figure 3 As shown, the bottom of the housing 1 has four mounting feet 101 for docking with the mounting interface of the mechanical equipment, and each mounting foot 101 has a mounting hole. The vibration reduction counterweight device can be directly installed on the mechanical equipment through the four mounting feet 101. In actual use, it only needs to open a hole directly on the mechanical equipment for installation. Compared with the existing vibration reduction device, there is no need to add an additional mounting interface and adapter plate. The vibration reduction counterweight device of the present invention is an integrated device and is easy to install.

[0035] Preferably, the shell 1 is a rectangular shell, and a pair of opposite faces (two oppositely arranged faces) of the rectangular shell are square, then the distances between the other two pairs of opposite faces of the rectangular shell are equal, and horizontal and vertical support rods 6 are arranged between the above two pairs of opposite faces, and the length of each support rod 6 is equal, so that each support rod 6 can be flexibly installed and interchangeable with each other.

[0036] Specifically, replacing the type of the first vibration damping pad 7 refers to replacing different types of silicone rubber, and different types of silicone rubber correspond to different damping coefficients. When the vibration damping counterweight device is actually used, the vibration damping counterweight device includes a plurality of first vibration damping pads 7 corresponding to different damping coefficients, and the materials of the plurality of first vibration damping pads 7 are all silicone rubber. Different types of first vibration damping pads 7 may be of the same size and stiffness but different damping coefficients, or may be of the same size but different stiffness and damping coefficients. Regardless of the type of the first vibration damping pad 7, its stiffness and damping coefficient are known. When adjusting the natural frequency or damping of the vibration damping counterweight device, the required quantity can be calculated based on the known stiffness and damping coefficient, and the adjustment can be made.

[0037] In an embodiment of a vibration-damping counterweight device, each adjustment module 100 includes a rectangular bearing support 4, four parallel support rods 6 and two nuts 10. The bearing support 4 is arranged parallel to the top cover 2 or the side cover 3. Specifically, the bearing support 4 of the vertically arranged adjustment module 100 is parallel to the top cover 2, and the bearing support 4 of the horizontally arranged adjustment module 100 is arranged parallel to the side cover 3. The four support rods 6 vertically penetrate the four corners of the bearing support 4. Each support rod 6 is sleeved with a first vibration-damping pad 7 on one side of the bearing support 4, and a second vibration-damping pad 8 on the other side. Specifically, the first vibration-damping pad 7 faces the top cover 2 or the side cover 3, and the second vibration-damping pad 8 is located on the other side. The two nuts 10 are threadedly matched with the support rods 6, and all the vibration-damping pads and the bearing support 4 are clamped in the middle. When the position of the weight 5 in the adjustment module 100 needs to be changed, only two nuts 10 need to be moved to adjust the position of all the weights 5.

[0038] like Figure 3 As shown, further, each support rod 6 is also equipped with a conical pressing block 11, one end of each support rod 6 is provided with a terminal, the other end penetrates the top cover 2 or the side cover 3 and is fixed with the conical pressing block 11, and the terminal is fixed to the housing 1 by a fastening screw 12. The conical pressing block 11 can detachably fix the support rod 6.

[0039] Furthermore, the first vibration damping pad 7 and the second vibration damping pad 8 are both cylindrical, and the length of the second vibration damping pad 8 is greater than that of the first vibration damping pad 7 . One second vibration damping pad 8 and six first vibration damping pads 7 are arranged on each support rod 6 .

[0040] Preferably, two vibration-damping pads 9 are further provided on each support rod 6, one vibration-damping pad 9 is provided between the second vibration-damping pad 8 and the nut 10, and the other vibration-damping pad 9 is provided between one of the outermost first vibration-damping pads 7 and the nut 10. The vibration-damping pad 9 can compress the first vibration-damping pad 7 and the second vibration-damping pad 8 without changing the damping coefficients of the first vibration-damping pad 7 and the second vibration-damping pad 8.

[0041] like Figure 2 As shown, a plurality of weights 5 are arranged in the center of the four support rods 6, on the side of the bearing support 4 facing the top cover 2 or the side cover 3; and the plurality of weights 5 are detachably fixedly connected in pairs. Preferably, corresponding to the position of the weight 5, the top cover 2 and the side cover 3 are provided with a through hole for adding or reducing the weight 5.

[0042] In one embodiment, each weight 5 is provided with a stepped inner hexagonal slot 52 and an inner threaded hole 51, and each weight 5 is also provided with an outer stud 53. The diameter of the inner threaded hole 51 is smaller than the diameter of the inscribed circle of the inner hexagonal slot 52; the outer stud 53 extends outward from the side of the weight 5 facing away from the inner hexagonal slot 52, and the outer stud 53 is coaxially arranged with the inner threaded hole 51, and the length of the outer stud 53 is greater than the depth of the inner hexagonal slot 52, and less than the sum of the depths of the inner hexagonal slot 52 and the inner threaded hole 51. In the vibration-damping counterweight device, the connection strength of the portion where the outer stud 53 matches the inner threaded hole 51 is required to support the weight of 10 weights 5; according to the actual weight of the weight 5, the connection strength of the portion where the outer stud 53 matches the inner threaded hole 51 also changes accordingly.

[0043] When the vibration-damping counterweight device is in use, the internal hexagonal groove 52 facilitates the installation and removal of the weights 5, and the external stud 53 of one weight 5 cooperates with the internal threaded hole 51 of another adjacent weight 5, which facilitates changing the mass of the vibration-damping counterweight device. The weights 5 are cleverly designed, which reduces the space occupied by all weights 5 and reduces the volume of the vibration-damping counterweight device.

[0044] Preferably, in one embodiment, the external stud 53 is provided with external threads all around; in another embodiment, the outer edge surface of the partial length from the end where the external stud 53 is connected to the weight 5 to the stepped surface between the internal hexagonal groove 52 and the internal threaded hole 51 is smooth, and the external threads are processed in the portion where the length of the external stud 53 is greater than the depth of the internal hexagonal groove 52.

[0045] like Figure 3 As shown, preferably, the housing 1 is provided with a transverse adjustment window 102, and the adjustment window 102 is used to change the position of the weight 5 in the adjustment module 100 without removing the top cover 2 and the side cover 3, thereby changing the center of mass position.

[0046] The vibration-damping counterweight device of the present application is flexible to use and install, and can be installed inside a mechanical device, on the surface of a mechanical device casing, or on an external excitation surface together with the mechanical device.

[0047] The specific working principle of this application is as follows:

[0048] When the center of mass of the mechanical equipment and the geometric center of the mounting interface do not coincide, the mechanical equipment will have a line-angle coupling problem in a dynamic environment. Specifically, the geometric center of the mounting interface refers to, for example, when the four mounting interfaces of the mechanical equipment are the four corners of a rectangle, the geometric center of the mounting interface is the center of the rectangle; when the eight mounting interfaces of the mechanical equipment are the octagon of a cuboid, the geometric center of the mounting interface is the center of the cuboid. Especially for some precision equipment, such as inertial measurement devices, the line-angle coupling problem will introduce errors in the measurement of linear acceleration and angular velocity, affecting the overall measurement accuracy. In addition, the line-angle coupling problem will cause the natural frequency of some mechanical equipment to decrease, and the vibration resistance of the mechanical equipment will be reduced in an external excitation environment dominated by low-frequency bands.

[0049] After the vibration-damping and counterweight device of the present application is installed at a suitable position of the mechanical equipment, the center of mass of the mechanical equipment installed with the vibration-damping and counterweight device and the geometric center of the installation interface can be coincident (which can be directly observed through a simulation model) by increasing or decreasing the number of adjustment modules 100, increasing or decreasing the number of weights 5 in several adjustment modules 100, and changing the position of the weights 5 in the adjustment module 100, thereby solving the problem of line-angle coupling of the mechanical equipment and improving the performance of precision equipment such as inertial measurement equipment.

[0050] Similarly, the natural frequency of the vibration-damping weight device can be adjusted by adjusting the mass (related to the number of weights 5) and the stiffness (related to the number of first vibration-damping pads 7). By adjusting the natural frequency of the vibration-damping weight device to make the natural frequency of the vibration-damping weight device equal to the frequency of the external excitation, the resonance of the mechanical equipment at the original resonance frequency can be eliminated.

[0051] Specifically, after the original resonant frequency is changed, two new resonance points will be generated. In order to ensure that the mechanical equipment will not resonate under external excitation, the new resonant frequency needs to be adjusted to outside the external excitation frequency range. The mass and stiffness parameters jointly determine the natural frequency value of the mechanical equipment. The higher the mass, the farther the new resonant frequency is from the original resonant frequency. When the adjusted resonant frequency just avoids the external excitation frequency range, a 5% safety range is generally left, which is the most ideal state.

[0052] The basic law of the damping system is the same as that of the undamped spring system, but the existence of damping can reduce the vibration peak value of the resonance point. Through adjustment tests and dynamic calculations, the optimal damping value under external excitation conditions can be directly solved, which can improve the vibration reduction performance of the vibration reduction counterweight device.

[0053] The vibration-damping and counterweight device of the present application increases or decreases the number of weights 5 in the adjusting modules 100, changes the position of the weights 5 in the adjusting modules 100, increases or decreases the number of the first vibration-damping pads 7, and replaces the types of the first vibration-damping pads 7 and / or the second vibration-damping pads 8, so that the natural frequency and damping of the vibration-damping and counterweight device meet the vibration-damping requirements of the mechanical equipment, and the center of mass of the mechanical equipment equipped with the vibration-damping and counterweight device meets the use requirements of the mechanical equipment (the center of mass is on the rotating shaft or the center of mass is located at the geometric center of the mounting interface); the vibration-damping and counterweight device of the present application is integrated and can be easily installed on the mechanical equipment without the need for additional mounting interfaces or adapter plates, and does not occupy additional space. During installation, it is only necessary to set a hole corresponding to the mounting foot 101 on the mechanical equipment. Even if there is no hole for installation, it can be directly opened on the mechanical equipment. The vibration reduction counterweight device has basically solidified parts and can be mass-produced. When adjusting the center of mass, natural frequency and damping, there is no need to repeatedly disassemble and assemble the vibration reduction counterweight device as a whole. It is only necessary to fine-tune the internal part of the vibration reduction counterweight device after installing the vibration reduction counterweight device. Even if the vibration reduction counterweight device needs to be replaced during use, it is not necessary to disassemble the entire device. Only minor adjustments need to be made to the internal part. Compared with traditional vibration reduction devices, the workload of disassembly and assembly is greatly reduced, and the adjustment efficiency is improved. In addition, compared with traditional vibration reduction devices, whether it is supplementary installation or replacement, the vibration reduction counterweight device of the present application does not need to be designed separately because of mass production, which reduces a lot of design and production costs.

[0054] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0055] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0056] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An adjustable vibration-damping counterweight device installed on mechanical equipment, characterized in that: A housing (1) comprising a detachable top cover (2) and a side cover (3); A plurality of adjustment modules (100) are divided into two parts that do not interfere with each other, one part is vertically arranged in the shell (1), and the other part is horizontally arranged in the shell (1); each of the adjustment modules (100) comprises a plurality of support rods (6) and a plurality of superimposed weights (5), the plurality of support rods (6) surround the superimposed weights (5), and each support rod (6) is sleeved with a plurality of first vibration damping pads (7); When the center of mass position of the mechanical equipment on which the vibration-damping counterweight device is installed needs to be changed, the number of weights (5) in the adjustment modules (100) is increased or decreased, and the position of the weights (5) in the adjustment modules (100) is changed; when the natural frequency of the vibration-damping counterweight device needs to be changed, the number of first vibration-damping pads (7) and the number of weights (5) are increased or decreased; when the damping of the vibration-damping counterweight device needs to be changed, the type of the first vibration-damping pad (7) is replaced; The bottom of the housing (1) has four mounting feet (101) for docking with mechanical equipment, and each mounting foot (101) has a mounting hole for accommodating a mounting member; Each of the adjustment modules (100) comprises a rectangular bearing support (4), four parallel support rods (6) and two nuts (10); the bearing support (4) is arranged parallel to the top cover (2) or the side cover (3), and the four support rods (6) vertically penetrate the four corners of the bearing support (4); each of the support rods (6) is sleeved with the first vibration damping pad (7) on one side of the bearing support (4), and with the second vibration damping pad (8) on the other side; the two nuts (10) are threadedly matched with the support rods (6), and clamp all the vibration damping pads and the bearing support (4) in the middle.

2. An adjustable vibration reduction counterweight device as claimed in claim 1, characterized in that: The vibration-damping counterweight device comprises a plurality of first vibration-damping pads (7) corresponding to different damping coefficients, and the material of the plurality of first vibration-damping pads (7) is silicone rubber.

3. An adjustable vibration reduction counterweight device as claimed in claim 1, characterized in that: Each support rod (6) is also provided with a conical pressing block (11), one end of each support rod (6) is provided with an end cap, the other end of each support rod (6) penetrates the top cover (2) or the side cover (3) and is fixed with the conical pressing block (11), and the end cap is fixed to the housing (1) by a fastening screw (12).

4. The adjustable vibration reduction counterweight device according to claim 1, characterized in that: The first vibration damping pad (7) and the second vibration damping pad (8) are both cylindrical, and the second vibration damping pad (8) is longer than the first vibration damping pad (7). One second vibration damping pad (8) and six first vibration damping pads (7) are arranged on each support rod (6).

5. An adjustable vibration reduction counterweight device as claimed in claim 4, characterized in that: Two vibration-damping pad pressure blocks (9) are also arranged on each support rod (6), one of the vibration-damping pad pressure blocks (9) being arranged between the second vibration-damping pad (8) and the nut (10), and the other vibration-damping pad pressure block (9) being arranged between one of the outermost first vibration-damping pads (7) and the nut (10).

6. The adjustable vibration reduction counterweight device according to claim 1, characterized in that: The plurality of weights (5) are arranged in the center of the four support rods (6), and are located on the side of the bearing support (4) facing the top cover (2) or the side cover (3); and the plurality of weights (5) are detachably fixedly connected in pairs.

7. An adjustable vibration reduction counterweight device as claimed in claim 6, characterized in that: Each of the weights (5) is provided with a stepped internal hexagonal groove (52) and an internal threaded hole (51), and each of the weights (5) is provided with an external stud (53); the diameter of the internal threaded hole (51) is smaller than the diameter of the inscribed circle of the internal hexagonal groove (52); the external stud (53) extends outward from a side opposite to the internal hexagonal groove (52), and the external stud (53) is coaxially arranged with the internal threaded hole (51), and the length of the external stud (53) is greater than the depth of the internal hexagonal groove (52) and less than the sum of the depths of the internal hexagonal groove (52) and the internal threaded hole (51).

8. An adjustable vibration reduction counterweight device according to any one of claims 1 to 7, characterized in that: The side wall of the housing (1) is provided with a plurality of adjustment windows (102), and the adjustment windows (102) are used to change the position of the weight (5) in the adjustment module (100) without removing the top cover (2) and the side cover (3).

Images