CN112032254A - Adjustable vibration reduction counterweight device - Google Patents
Adjustable vibration reduction counterweight device Download PDFInfo
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- CN112032254A CN112032254A CN202010784090.3A CN202010784090A CN112032254A CN 112032254 A CN112032254 A CN 112032254A CN 202010784090 A CN202010784090 A CN 202010784090A CN 112032254 A CN112032254 A CN 112032254A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
- F16F15/283—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same for engine crankshafts
- F16F15/286—Adjustable weights
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Abstract
The application relates to an adjustable vibration reduction counterweight device, which relates to the technical field of mechanical engineering and is arranged on mechanical equipment, wherein a shell comprises a top cover and a side cover; one part of the plurality of adjusting modules is vertically arranged, and the other part of the plurality of adjusting modules is transversely arranged; each adjusting module comprises a plurality of supporting rods and a plurality of stacked weights, and a plurality of first vibration damping pads are sleeved on each supporting rod; when the position of the mass center, the natural frequency and the damping need to be changed, the mass center, the natural frequency and the damping can be changed by increasing or decreasing the number of the weights in the plurality of adjusting modules, changing the positions of the weights in the adjusting modules, increasing or decreasing the number of the first vibration damping pads and changing the types of the first vibration damping pads. The vibration reduction counter weight device can enable the natural frequency and the damping of the vibration reduction counter weight device to reach the state meeting the vibration reduction requirement of mechanical equipment, and enables the mass center of mechanical equipment assembled with the vibration reduction counter weight device to reach the state meeting the use requirement of the mechanical equipment.
Description
Technical Field
The application relates to the technical field of mechanical engineering, in particular to an adjustable vibration reduction counterweight device.
Background
For some mechanical devices, under some special working conditions, the mechanical device may face resonance problems caused by external excitation, and the resonance may cause damage to the mechanical device or loss of precision of the mechanical device, and the resonance is mainly determined by the natural frequency and damping of the mechanical device. Meanwhile, based on a specific mechanical device, the centroid position is not located at the geometric center of the mounting interface, which directly causes the mechanical device to face the problem of line-angle coupling in the motion process. Depending on the particular rotating machine, the location of the center of mass not on the axis of rotation can directly lead to the problem of the machine facing increased rotational drag torque during motion.
In the related art, the resonance problem and the mass center problem during the operation of mechanical equipment are mainly solved in two situations, wherein in the first situation, a damping device is additionally installed on the equipment which is not subjected to damping design; in the second case, the vibration damping device is replaced for a mechanical device that has been designed for vibration damping.
However, whether the damping device is additionally installed or replaced, the mechanical equipment needs to additionally increase an installation interface of the damping device, such as a support lug and the like; or an adapter plate is additionally added to mechanical equipment with a fixed mounting interface; for large mechanical equipment, in order to ensure vibration damping performance, a large vibration damping device needs to be matched, a corresponding mounting interface or adapter plate of the large vibration damping device needs to additionally occupy a large space, and for mechanical equipment with originally limited space, the large vibration damping device usually needs to be completely redesigned and planned. Meanwhile, no matter a new vibration damper is additionally installed or replaced, the new vibration damper needs to be repeatedly disassembled and assembled for testing to obtain the natural frequency, the damping and the centroid position meeting the requirements, and generally needs to be integrally disassembled and assembled, so that the disassembling and assembling workload is large; and the new vibration damper is installed from design to production and then processing, which increases extra cost.
Disclosure of Invention
The embodiment of the application provides an adjustable damping counter weight device, can install in mechanical equipment portably, and can be through the mounted position that changes damping counter weight device and the inside adjusting module of adjusting damping counter weight device for the natural frequency and the damping of damping counter weight device reach the state that satisfies the mechanical equipment damping demand, make the mass center of the mechanical equipment of assembling damping counter weight device reach the state that satisfies mechanical equipment operation requirement.
The application provides an adjustable vibration reduction counterweight device which is arranged on mechanical equipment and comprises a shell, a counterweight and a counterweight support, wherein the shell comprises a detachable top cover and a detachable side cover;
the adjusting modules are divided into two parts which do not interfere with each other, one part is vertically arranged in the shell, and the other part is transversely arranged in the shell; each adjusting module comprises a plurality of supporting rods and a plurality of stacked weights, the plurality of supporting rods surround the stacked weights, and a plurality of first vibration damping pads are sleeved on each supporting rod;
when the position of the mass center of mechanical equipment provided with the vibration reduction counterweight device needs to be changed, the number of the weights in the plurality of adjusting modules is increased or decreased, and the positions of the weights in the adjusting modules are changed; when the natural frequency of the vibration reduction counterweight device needs to be changed, the number of the first vibration reduction pads and the number of the weights are increased or decreased; and when the damping of the vibration reduction counterweight device needs to be changed, replacing the type of the first vibration reduction pad.
In some embodiments, the bottom of the housing has four mounting feet for docking with mechanical equipment, each mounting foot defining a mounting hole for receiving a mounting member.
In some embodiments, the vibration reduction counterweight device comprises a plurality of first vibration reduction pads corresponding to different damping coefficients, and the first vibration reduction pads are made of silicon rubber.
In some embodiments, each of the adjusting modules comprises a rectangular bearing support, four parallel supporting rods and two nuts; the bearing support is arranged in parallel to the top cover or the side cover, and the four support rods vertically penetrate through four corners of the bearing support; the first damping pad is sleeved on one side of the bearing support of each supporting rod, and the second damping pad is sleeved on the other side of the bearing support; the two nuts are matched with the supporting rod in a threaded mode, and all the vibration damping pads and the bearing support are clamped in the middle.
In some embodiments, each of the support rods further has a tapered pressing block, one end of each of the support rods is provided with an end head, the other end penetrates through the top cover or the side cover and is fixed by the tapered pressing block, and the end head is fixed to the housing by a fastening screw.
In some embodiments, the first and second damping pads are both cylindrical, the length of the second damping pad is greater than that of the first damping pad, and one second damping pad and six first damping pads are disposed on each support rod.
In some embodiments, two damping pad pressing blocks are further disposed on each supporting rod, one damping pad pressing block is disposed between the second damping pad and the nut, and the other damping pad pressing block is disposed between one first damping pad on the outermost side and the nut.
In some embodiments, a plurality of weights are arranged at the midpoint of the four support rods and positioned on one side of the bearing support, which faces the top cover or the side cover; and the weights can be fixedly connected in a detachable way.
In some embodiments, each weight is provided with a stepped inner hexagonal groove and an inner threaded hole, and further comprises an outer stud; the diameter of the internal thread hole is smaller than the diameter of an inscribed circle of the internal hexagonal groove; the outer stud extends outwards from one surface back to the inner hexagonal groove, the outer stud and the inner threaded hole are coaxially arranged, and the length of the outer stud is larger than the depth of the inner hexagonal groove and smaller than the sum of the depths of the inner hexagonal groove and the inner threaded hole.
In some embodiments, the side wall of the housing is provided with a plurality of adjusting windows, and the adjusting windows are used for changing the position of the weight in the adjusting module on the premise of not disassembling the top cover and the side cover.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides an adjustable vibration reduction counterweight device, which mainly comprises a shell and a plurality of adjusting modules, wherein one part of the adjusting modules are vertically arranged, the other part of the adjusting modules are transversely arranged, each adjusting module comprises a supporting rod, a weight and a plurality of first vibration reduction pads, the positions of the weights in the adjusting modules are changed by increasing or decreasing the number of the weights in the adjusting modules, the number of the first vibration reduction pads is increased or decreased, the types of the first vibration reduction pads are changed, the natural frequency and the damping of the vibration reduction counterweight device reach the state meeting the vibration reduction requirement of mechanical equipment, and the mass center of the mechanical equipment on which the vibration reduction counterweight device is assembled reaches the state meeting the use requirement of the mechanical equipment (specifically, the mass center is coincided with a rotating shaft of the mechanical equipment, for example, the mass center is coincided with the; the vibration reduction counterweight device is integrated, can be simply and conveniently installed on mechanical equipment, does not need to additionally arrange an installation interface or an adapter plate, and does not need to additionally occupy space; when carrying out barycenter, natural frequency and damping adjustment, need not carry out the dismouting experiment repeatedly to the whole damping counter weight device, only need after having installed damping counter weight device, to damping counter weight device inside finely tune can, the dismouting work load that has significantly reduced has improved regulation efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is an exploded view of a vibration dampening counterweight apparatus provided in accordance with an embodiment of the present application;
FIG. 2 is an exploded view of a conditioning module provided in accordance with an embodiment of the present application;
FIG. 3 is a schematic front view of a vibration reducing counterweight apparatus according to an embodiment of the present application;
FIG. 4 is a side schematic view of a vibration reducing counterweight apparatus provided in accordance with an embodiment of the present application;
FIG. 5 is a schematic front view of a weight provided in an embodiment of the present application;
fig. 6 is a schematic view of the back of the weight provided in the embodiment of the present application;
reference numerals: 1. a housing; 2. a top cover; 3. a side cover; 4. a bearing support; 5. a weight; 6. a support bar; 7. a first vibration damping pad; 8. a second vibration damping pad; 9. a vibration damping pad pressing block; 10. a nut; 11. a conical pressing block; 12. fastening screws; 51. an internally threaded bore; 52. an inner hexagonal groove; 53. an outer stud; 100. an adjustment module; 101. mounting a foot; 102. and adjusting the window.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, the present application discloses an embodiment of an adjustable vibration reduction counterweight device, which is mounted on a mechanical apparatus, and includes a housing 1 and a plurality of adjusting modules 100; the housing 1 comprises a removable top cover 2 and side covers 3. The plurality of adjusting modules 100 are divided into two independent and non-interfering parts, one part is vertically arranged in the housing 1, and the other part is transversely arranged in the housing 1. Every adjusting module 100 contains the weight 5 of many spinal branch vaulting poles 6 and a plurality of stack settings, and many spinal branch vaulting poles 6 encircle around the weight 5 of stack setting, and a plurality of first damping pad 7 are established to the cover on every spinal branch vaulting pole 6.
After the vibration reduction counterweight device is installed on mechanical equipment, the mechanical equipment and the vibration reduction counterweight device need to be considered comprehensively; when the position of the mass center of the mechanical equipment provided with the vibration reduction counterweight device needs to be changed, the number of the weights 5 in the plurality of adjusting modules 100 is increased or decreased, and the positions of the weights 5 in the adjusting modules 100 are changed. Specifically, the specific process of adjusting the centroid position of the mechanical equipment provided with the vibration reduction counterweight device is divided into three processes, one process is coarse adjustment, and the coarse adjustment of the centroid position is realized directly by increasing or decreasing the number of the adjusting modules 100 which are transversely or vertically arranged and changing the mass by a larger unit; the first fine adjustment is to realize the fine adjustment of the position of the mass center by increasing or decreasing the number of the weights 5 in the adjusting module 100 and changing the mass by a small unit; the second fine adjustment is to change the position of the weight 5 in the adjusting module 100 to achieve fine adjustment of the position of the center of mass. For specific mechanical equipment, the aim of adjustment is to enable the position of the mass center of the mechanical equipment provided with the vibration reduction counterweight device to coincide with the geometric center of the mounting interface, so that the problem of line-angle coupling in the movement process of the mechanical equipment is avoided; for a specific rotating mechanical device, the aim of adjustment is to enable the center of mass of the mechanical device provided with the vibration reduction counterweight device to fall on a rotating shaft, so that the problem of increased rotation resistance moment in the movement process of the mechanical device is avoided.
When the natural frequency of the vibration reduction counterweight device needs to be changed, the number of the weights 5 is increased or decreased by increasing or decreasing the number of the first vibration reduction pads 7; specifically, the adjustment of the natural frequency is related to the weight and the rigidity of the vibration-damping weight device, the weight of the vibration-damping weight device is adjusted by increasing or decreasing the number of the weights 5, and the rigidity of the vibration-damping weight device is adjusted by increasing or decreasing the number of the first vibration-damping pads 7.
When the damping of the vibration reduction counterweight device needs to be changed, the types of the first vibration reduction pad 7 and/or the second vibration reduction pad 8 are replaced, and the damping of the vibration reduction counterweight device is adjusted by changing the damping coefficient of the first vibration reduction pad 7 and/or the second vibration reduction pad 8.
In the drawings of the present application, only the case where there are two vertically disposed adjustment modules 100 and one horizontally disposed adjustment module 100 is shown; however, in practical design, the adjustment modules 100 of the vibration damping and weight device in two directions can be matched arbitrarily.
As shown in fig. 3, the bottom of the housing 1 has four mounting feet 101 for interfacing with a mechanical device mounting interface, and each mounting foot 101 defines a mounting hole. The vibration reduction counterweight device can be directly arranged on mechanical equipment through the four mounting feet 101, only direct hole forming is needed to be arranged on the mechanical equipment during actual use, and compared with the existing vibration reduction device, no additional mounting interface and adapter plate are needed.
Preferably, casing 1 is the cuboid casing, and a pair of opposite face (two faces that set up relatively) of this cuboid casing is the square, then the distance between the other two pairs of opposite faces of rectangle casing equals, sets up horizontal and vertical bracing piece 6 between above-mentioned two pairs of opposite faces, and the length of every bracing piece 6 equals, and each bracing piece 6 of being convenient for installs in a flexible way, can exchange each other.
Specifically, replacing the kind of the first vibration damping pad 7 refers to replacing different types of silicone rubber, which correspond to different damping coefficients. When the vibration reduction counterweight device is actually used, the vibration reduction counterweight device comprises a plurality of first vibration reduction pads 7 corresponding to different damping coefficients, and the materials of the plurality of first vibration reduction pads 7 are silicon rubber. The different kinds of first vibration-damping cushions 7 may have the same size, the same rigidity, but different damping coefficients, or may have the same size, but different rigidity and different damping coefficients. The stiffness and damping coefficient of the first damping pad 7 are known regardless of the kind. When the natural frequency or the damping of the vibration reduction counterweight device is adjusted, the required quantity can be calculated according to the known rigidity and damping coefficient, and the adjustment can be increased or decreased.
In one embodiment of the vibration-damping and weight-balancing device, each adjusting module 100 comprises a rectangular support base 4, four parallel support rods 6 and two nuts 10. The support bearings 4 are arranged parallel to the top cover 2 or the side cover 3, in particular the support bearings 4 of the vertically arranged control modules 100 are arranged parallel to the top cover 2 and the support bearings 4 of the laterally arranged control modules 100 are arranged parallel to the side cover 3. Four support rods 6 penetrate vertically through the four corners of the bearing support 4. A first damping pad 7 is sleeved on one side of the bearing support 4 of each support rod 6, and a second damping pad 8 is sleeved on the other side of the bearing support 4. 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. Two nuts 10 are screwed to the support bar 6 and hold all the damping pads and the support 4 in between. When the position of the weight 5 in the adjusting module 100 needs to be changed, the positions of all the weights 5 can be adjusted only by moving the two nuts 10.
As shown in fig. 3, further, each support rod 6 is further provided with a tapered pressing block 11, one end of each support rod 6 is provided with an end head, the other end penetrates through the top cover 2 or the side cover 3 and is fixed by the tapered pressing block 11, and the end head is fixed to the housing 1 by a fastening screw 12. The tapered pressing block 11 can detachably fix the supporting rod 6.
Further, first damping pad 7 and second damping pad 8 are cylindrical, and the length of second damping pad 8 is greater than first damping pad 7, sets up a second damping pad 8 and six first damping pads 7 on every bracing piece 6.
Preferably, each support rod 6 is further provided with two damping pad pressing blocks 9, one damping pad pressing block 9 is arranged between the second damping pad 8 and the nut 10, and the other damping pad pressing block 9 is arranged between one of the outermost first damping pads 7 and the nut 10. The vibration damping pad pressing block 9 can press the first vibration damping pad 7 and the second vibration damping pad 8 without changing the damping coefficient of the first vibration damping pad 7 and the second vibration damping pad 8.
As shown in fig. 2, a plurality of weights 5 are arranged at the midpoint of four support rods 6 and are positioned on one side of the bearing support 4 facing the top cover 2 or the side cover 3; and the weights 5 can be fixed and connected in a detachable way. Preferably, the top cover 2 and the side cover 3 are provided with a through hole for the weight 5 to be increased or decreased corresponding to the position of the weight 5.
In one embodiment, each weight 5 is provided with a stepped inner hexagonal groove 52 and an inner threaded hole 51, and each weight 5 is further provided with an outer stud 53. The diameter of the internal thread hole 51 is smaller than the diameter of an inscribed circle of the internal hexagonal groove 52; the outer stud 53 extends outwards from one surface of the weight 5 opposite to the inner hexagonal groove 52, the outer stud 53 is coaxially arranged with the inner threaded hole 51, and the length of the outer stud 53 is larger than the depth of the inner hexagonal groove 52 and smaller than the sum of the depths of the inner hexagonal groove 52 and the inner threaded hole 51. In the vibration damping and weight balancing device, the connection strength of the portion where the outer stud 53 is matched with the internal threaded hole 51 is required to be able to support the weight of 10 weights 5; the connection strength of the portion of the outer column 53 that fits into the inner threaded hole 51 changes depending on the actual weight of the weight 5.
When damping counter weight device uses, the installation of the hexagonal groove 52 of being convenient for weight 5 is dismantled, and the outer screw 53 of a weight 5 mutually supports with the internal thread hole 51 of another adjacent weight 5, is convenient for change damping counter weight device's quality, and weight 5 design benefit has reduced the space that all weights 5 occupy, has reduced damping counter weight device's volume.
Preferably, in one embodiment, the outer threaded post 53 is circumferentially all provided with external threads; in another embodiment, the outer surface is smooth from the end of the outer stud 53 connected to the weight 5 to the portion of the stepped surface between the inner hexagonal groove 52 and the inner threaded hole 51, and the outer thread is formed on the portion of the outer stud 53 having a length greater than the depth of the inner hexagonal groove 52.
As shown in fig. 3, the housing 1 is preferably provided with a lateral adjustment window 102, and the adjustment window 102 is used to change the position of the weight 5 in the adjustment module 100, and thus the position of the center of mass, without detaching the top cover 2 and the side cover 3.
The vibration reduction counterweight device is flexible to use and mount, and can be mounted inside mechanical equipment, on the surface of a shell of the mechanical equipment or on an external excitation surface together with the mechanical equipment.
The specific working principle of the application is as follows:
when the centroid of the mechanical equipment and the geometric center of the installation interface are not coincident, the line angle coupling problem of the mechanical equipment can occur in a dynamic environment. Specifically, the geometric center of the mounting interface means that, for example, when four mounting interfaces of the mechanical device are rectangular, the geometric center of the mounting interface is the center of the rectangle; when the eight mounting interfaces of the mechanical equipment are in a cuboid octagonal shape, the geometric center of each mounting interface is the center of the cuboid. Especially for some precision equipment, such as an inertial measurement device, the line angle coupling problem can introduce errors into the measurement of linear acceleration and angular velocity, and the overall measurement accuracy is affected. In addition, the line-angle coupling problem may cause the natural frequency of some mechanical devices to be lowered, and the vibration resistance of the mechanical devices may be lowered in an external excitation environment mainly in a low frequency band.
The utility model provides a damping counter weight device can be through the quantity of increase and decrease adjusting module 100 after installing in mechanical equipment's suitable position, increase and decrease the quantity of weight 5 in a plurality of adjusting module 100, change the position of weight 5 in adjusting module 100, the realization is installed the mechanical equipment's of damping counter weight device the centroid and the geometric centre coincidence of installation interface (can be through simulation model direct observation), thereby solve mechanical equipment line angle coupling problem, improve the performance of precision equipment such as inertial measurement equipment.
Likewise, adjusting the mass (relative to the number of weights 5) and the stiffness (relative to the number of first damping pads 7) of the vibration damping weight device allows adjusting the natural frequency of the vibration damping weight device. By adjusting the natural frequency of the vibration reduction counterweight device, the resonance of the mechanical equipment at the original resonance frequency can be eliminated when the natural frequency of the vibration reduction counterweight device is equal to the frequency of external excitation.
Specifically, two new resonance points are generated after the original resonance frequency is changed, and in order to ensure that the mechanical equipment cannot generate resonance under the action of external excitation, the new resonance frequency needs to be adjusted to be out of the range of the external excitation frequency. The mass and the stiffness parameters jointly determine the natural frequency value of the mechanical equipment, and the higher the mass is, the farther the distance between the new resonance frequency and the original resonance frequency is. When the adjusted resonance frequency just avoids the external excitation frequency range, a 5% safety range is generally reserved, and the optimal state is achieved.
The basic principle of the damping system is equivalent to an undamped spring system, but the existence of damping can reduce the vibration peak value of the resonance point. By adjusting the test and adding the dynamic calculation, the optimal damping value under the external excitation environment can be directly calculated, and the vibration damping performance of the vibration damping counterweight device can be improved.
According to the vibration reduction counterweight device, the number of the weights 5 in the plurality of adjusting modules 100 is increased or decreased, the positions of the weights 5 in the adjusting modules 100 are changed, the number of the first vibration reduction pads 7 is increased or decreased, and the types of the first vibration reduction pads 7 and/or the second vibration reduction pads 8 are/is changed, so that the natural frequency and the damping of the vibration reduction counterweight device reach the state meeting the vibration reduction requirements of mechanical equipment, and the mass center of the mechanical equipment on which the vibration reduction counterweight device is assembled reaches the state meeting the use requirements of the mechanical equipment (the mass center is on a rotating shaft or the mass center is positioned at the geometric center of an installation interface); the vibration reduction counterweight device is integrated into a whole, can be simply and conveniently installed on mechanical equipment, does not need to additionally arrange an installation interface or a patch panel, does not need to additionally occupy space, only needs to arrange a hole corresponding to the installation foot 101 on the mechanical equipment during installation, and can be directly arranged on the mechanical equipment even if no hole for installation is arranged; the vibration reduction counterweight device has the advantages that each part is basically solidified, the mass production can be realized, the repeated assembly and disassembly experiments of the whole vibration reduction counterweight device are not needed when the mass center, the natural frequency and the damping are adjusted, and the interior of the vibration reduction counterweight device is finely adjusted only after the vibration reduction counterweight device is installed; even damping counter weight device need be changed in the use, also need not carry out whole dismantlement, only need carry on inside slight adjustment can, for traditional damping device, the dismouting work load that has significantly reduced has improved regulation efficiency. In addition, compared with the traditional vibration damper, no matter supplementary installation or replacement, the vibration damping counterweight device of the application does not need to be designed independently due to batch production, and a large amount of design and production costs are reduced.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides an adjustable damping counter weight device, installs in mechanical equipment its characterized in that:
a housing (1) comprising a removable top cover (2) and a side cover (3);
the adjusting modules (100) are divided into two parts which do not interfere with each other, one part is vertically arranged in the shell (1), and the other part is transversely arranged in the shell (1); each adjusting module (100) comprises a plurality of supporting rods (6) and a plurality of stacked weights (5), the plurality of supporting rods (6) surround the stacked weights (5), and a plurality of first vibration damping pads (7) are sleeved on each supporting rod (6);
when the position of the mass center of mechanical equipment provided with the vibration reduction counterweight device needs to be changed, the number of the weights (5) in the plurality of adjusting modules (100) is increased or decreased, and the positions of the weights (5) in the adjusting modules (100) are changed; when the natural frequency of the vibration reduction counterweight device needs to be changed, the number of the first vibration reduction pads (7) and the number of the weights (5) are increased or decreased; when the damping of the vibration-damping weight device needs to be changed, the type of the first vibration-damping pad (7) is replaced.
2. The adjustable vibration reducing counterweight device according to claim 1, wherein: the bottom of the shell (1) is provided with four mounting feet (101) for butt joint with mechanical equipment, and each mounting foot (101) is provided with a mounting hole for accommodating a mounting piece.
3. The adjustable vibration reducing counterweight device according to claim 1, wherein: the vibration reduction counterweight device comprises a plurality of first vibration reduction pads (7) corresponding to different damping coefficients, and the first vibration reduction pads (7) are made of silicon rubber.
4. The adjustable vibration reducing counterweight device according to claim 1, wherein: each adjusting module (100) comprises a rectangular bearing support (4), four parallel supporting rods (6) and two nuts (10); the bearing support (4) is arranged in parallel to the top cover (2) or the side cover (3), and the four support rods (6) vertically penetrate through four corners of the bearing support (4); the first damping pad (7) is sleeved on one side of the bearing support (4) of each support rod (6), and the second damping pad (8) is sleeved on the other side of the bearing support; the two nuts (10) are in threaded matching with the support rod (6), and all the damping pads and the bearing support (4) are clamped in the middle.
5. The adjustable vibration reducing counterweight device according to claim 1, wherein: every bracing piece (6) still installs a toper briquetting (11), every the one end of bracing piece (6) sets up the end, and the other end pierces through top cap (2) or side cap (3) and fixes with toper briquetting (11), just the end is fixed in through fastening screw (12) casing (1).
6. The adjustable vibration reducing counterweight device according to claim 4, wherein: first damping pad (7) and second damping pad (8) are cylindrical, just the length of second damping pad (8) is greater than first damping pad (7), sets up a second damping pad (8) and six first damping pads (7) on every bracing piece (6).
7. The adjustable vibration reducing counterweight device according to claim 6, wherein: each supporting rod (6) is further provided with two vibration damping pad pressing blocks (9), one vibration damping pad pressing block (9) is arranged between the second vibration damping pad (8) and the nut (10), and the other vibration damping pad pressing block (9) is arranged between one of the first vibration damping pads (7) on the outermost side and the nut (10).
8. The adjustable vibration reducing counterweight device according to claim 4, wherein: the weights (5) are arranged at the midpoint of the four support rods (6) and are positioned on one side, facing the top cover (2) or the side cover (3), of the bearing support (4); and the weights (5) can be fixed and connected in a detachable way.
9. The adjustable vibration reducing counterweight apparatus of claim 8, wherein: each weight (5) is provided with a stepped inner hexagonal groove (52) and an inner threaded hole (51), and each weight (5) is provided with an outer stud (53); the diameter of the internal thread hole (51) is smaller than the diameter of an inscribed circle of the internal hexagonal groove (52); the outer stud (53) extends outwards from one surface back to the inner hexagonal groove (52), the outer stud (53) and the inner threaded hole (51) are coaxially arranged, and the length of the outer stud (53) is larger than the depth of the inner hexagonal groove (52) and smaller than the sum of the depths of the inner hexagonal groove (52) and the inner threaded hole (51).
10. An adjustable vibration reducing counterweight according to any one of claims 1 to 9, wherein: a plurality of adjusting windows (102) are formed in the side wall of the shell (1), and the adjusting windows (102) are used for changing the positions of the weights (5) in the adjusting module (100) on the premise that the top cover (2) and the side cover (3) are not detached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010784090.3A CN112032254A (en) | 2020-08-06 | 2020-08-06 | Adjustable vibration reduction counterweight device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112591156A (en) * | 2020-12-21 | 2021-04-02 | 星众空间(北京)科技有限公司 | 1U cube star quality simulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112591156A (en) * | 2020-12-21 | 2021-04-02 | 星众空间(北京)科技有限公司 | 1U cube star quality simulator |
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