CN210591367U

CN210591367U - Damper and sweeper

Info

Publication number: CN210591367U
Application number: CN201921485984.1U
Authority: CN
Inventors: 冯全玉
Original assignee: Rongsheng Xingcheng Xinglong New Energy Development Co Ltd
Current assignee: Rongsheng Xingcheng Xinglong New Energy Development Co Ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-05-22
Anticipated expiration: 2029-09-06

Abstract

The utility model discloses a damper and scavenging machine, this damper are used for fixing the stabilizer blade of functional unit on the frame, the mounting hole has been seted up to the upper surface of frame, damper includes: the bushing is arranged in the mounting hole, and the outer wall of the bushing is in contact fit with the wall of the mounting hole; the damping sleeve is arranged in the inner hole of the lining, the upper end of the damping sleeve protrudes out of the lining, and the support leg is lapped on the upper end of the damping sleeve; the bolt penetrates through the support leg and the damping sleeve; the first nut is sleeved on the bolt to press the damping sleeve; wherein: the middle part of the inner hole of the bushing is arranged to be drum-shaped, so that a reserved space for allowing the damping sleeve to expand is formed between the hole wall of the inner hole of the bushing and the damping sleeve.

Description

Damper and sweeper

Technical Field

The utility model relates to a damper and scavenging machine.

Background

Mobile devices (e.g., sweepers, heavy-duty vehicles) each include a power component (e.g., an engine) and a transmission component (e.g., a transmission), which are typically secured to a frame. In order to reduce the vibration transmitted from the frame to the power component and the transmission component (for convenience of description, the power component and the transmission component are hereinafter collectively referred to as a functional component), a damping sleeve made of a rubber material is generally installed between the functional component and the frame, and the damping sleeve is specifically installed in a manner that: offer a mounting hole on the frame, during the mounting hole was located to the shock attenuation cover, and the upper end protrusion in the mounting hole of shock attenuation cover, the stabilizer blade overlap joint of functional unit is in the upper end of shock attenuation cover, borrows to wear to establish stabilizer blade and shock attenuation cover and fixes the support on the frame by the bolt. Therefore, when the vehicle frame vibrates upwards, the damping sleeve buffers the vibration through deformation, and then the damping effect is achieved.

However, since the mounting hole is a cylindrical hole, and in order to prevent the damping sleeve and the functional component from radial play, the cylindrical damping sleeve tightly extends into the mounting hole, which results in: only the part of the damping sleeve protruding out of the mounting hole generates axial compression deformation (the reason is that according to the law that the solid volume is constant, if the damping sleeve generates compression deformation, the damping sleeve is required to be allowed to radially increase, however, the damping sleeve is tightly mounted and contacted with the mounting hole, so that the mounting hole cannot provide a space for radial increase, or radial expansion, of the damping sleeve), which results in that:

1. the shock absorption sleeve cannot play a shock absorption role in the whole axial dimension, so that the shock absorption rigidity is increased, and the shock absorption effect is poor.

2. Impact generated by vibration of the frame and the functional components is borne by the part of the shock absorption sleeve protruding out of the frame, so that fatigue failure is easy to occur in the part, and the service life of the shock absorption sleeve is short.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem that exists among the prior art, the embodiment of the utility model provides a damper.

For solving the technical problem, the embodiment of the utility model adopts the following technical scheme:

a shock-absorbing mechanism for fixing a support leg of a functional component on a vehicle frame, wherein a mounting hole is formed in the upper surface of the vehicle frame, and the shock-absorbing mechanism comprises:

the bushing is arranged in the mounting hole, and the outer wall of the bushing is in contact fit with the wall of the mounting hole;

the damping sleeve is arranged in the inner hole of the lining, the upper end of the damping sleeve protrudes out of the lining, and the support leg is lapped on the upper end of the damping sleeve;

the bolt penetrates through the support leg and the damping sleeve;

the first nut is sleeved on the bolt to press the damping sleeve; wherein:

the middle part of the inner hole of the bushing is arranged to be drum-shaped, so that a reserved space for allowing the damping sleeve to expand is formed between the hole wall of the inner hole of the bushing and the damping sleeve.

Preferably, the bushing is formed at an upper end thereof with a first flange overlapping an upper surface of the frame and fixed to the frame by a fastener.

Preferably, the lower surface of the frame is provided with a through hole coaxial with the mounting hole;

the damper mechanism further includes:

the fixing sleeve penetrates through the through hole from the lower surface of the frame and extends into the damping sleeve, and the fixing sleeve is fixedly connected with the frame;

the movable sleeve extends into the damping sleeve from the upper end of the damping sleeve, a second flange is formed at the upper end of the movable sleeve, and the second flange is lapped on the upper end of the damping sleeve;

the spring is arranged in the damping sleeve and is positioned between the movable sleeve and the fixed sleeve; wherein:

the bolt penetrates through the fixed sleeve and the movable sleeve;

the support leg is lapped on the second flange.

Preferably, a third flange is formed at a lower end of the fixing sleeve, and the third flange is fixed to a lower surface of the frame by a fastening member.

Preferably, the lower end of the movable sleeve is provided with a guide hole, the upper end of the fixed sleeve extends into the guide hole, and the spring is arranged in the guide hole.

Preferably, a second nut is further sleeved on the bolt and used for limiting the first nut to be unscrewed.

The utility model also discloses a scavenging machine, including frame and functional unit, functional unit has the stabilizer blade, still includes foretell damper, damper is used for with the stabilizer blade is fixed on the frame.

Compared with the prior art, the utility model discloses a damper's beneficial effect is:

the utility model discloses a make the hole set to the cydariform and make and form the headspace between shock attenuation cover and the hole, and then make the shock attenuation cover that is arranged in the hole also can participate in the shock attenuation through shrinkage deformation, this has improved the shock attenuation effect on the one hand, and on the other hand has reduced the fatigue failure's of the part of shock attenuation cover protrusion bush upper end emergence probability to a certain extent, and then has improved the life of shock attenuation cover.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

The summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the embodiments of the invention. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

Fig. 1 is a schematic view of a state of a damping mechanism provided in an embodiment of the present invention when vibration does not occur to a vehicle frame.

Fig. 2 is a schematic view of a state of the damping mechanism according to the embodiment of the present invention when the vehicle frame vibrates upward.

Reference numerals:

10-a damping sleeve; 20-a liner; 21-a first flange; 30-bolts; 40-a first nut; 50-fixing a sleeve; 51-a third flange; 60-a movable sleeve; 61-a second flange; 70-a spring; 80-a second nut; 90-reserving space; 101-a leg; 102-a frame; 103-mounting holes.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in fig. 1 and 2, an embodiment of the present invention discloses a damping mechanism, which can be applied to a mobile vehicle, for example, a heavy-duty truck or a sweeper. The damping mechanism is used in particular for fixing the feet 101 of a functional component on a moving vehicle, which may be an engine or a gearbox etc., to the frame 102 so that the functional component is mounted on the frame 102. Mounting holes 103 are formed in the upper surface of the frame 102, specifically, the mounting holes 103 are formed in two parallel beams of the frame 102, and the legs 101 of the functional component corresponding to the two beams correspond to the mounting holes 103 in the two beams, respectively. Each mounting hole 103 and the support leg 101 are correspondingly provided with a damping mechanism. Each shock-absorbing mechanism includes: bushing 20, damping sleeve 10, bolt 30 and first nut 40. The mounting hole 103 is a columnar hole, the bushing 20 is mounted in the mounting hole 103, and the inner wall of the bushing 20 is in close contact with the wall of the mounting hole 103 to increase the rigidity of the bushing 20; the upper end of the bush 20 forms a first flange 21, and the first flange 21 is lapped on the upper surface of the frame 102 (or beam) and fixed on the upper surface of the frame 102 by a fastener. The outer wall of the damping sleeve 10 is a cylindrical surface, the damping sleeve 10 is arranged in an inner hole of the bushing 20, the lower end of the damping sleeve 10 abuts against the bottom of the mounting hole 103, the upper end of the damping sleeve 10 protrudes out of the upper end surface of the first flange 21 of the bushing 20, and the support leg 101 is lapped on the upper end of the damping sleeve 10. The bolt 30 penetrates through the damping sleeve 10, the first flange 21 and the supporting leg 101 from the lower surface of the frame 102 in sequence, and the first nut 40 is sleeved at the upper end of the bolt 30 and presses against the supporting leg 101 through screwing, so that the pretightening force of the supporting leg 101 to the damping sleeve 10 is increased (the pretightening force to the damping sleeve 10 includes the gravity of the functional component and the pressure of the first nut 40 to the supporting leg 101). In the present embodiment, the diameters of the upper port and the lower port of the inner bore are made to be consistent with the outer diameter of the damping sleeve 10, which enables the upper port and the lower port to effectively prevent the damping sleeve 10 from generating radial play, and it is important that: providing the bore between the upper and lower ports as a drum shape, which results in: when no impact is generated between the frame 102 and the leg 101 (or the frame 102 does not generate vibration), a reserved space 90 is formed between the damping sleeve 10 located in the inner hole and the hole wall of the inner hole, and the reserved space 90 functions as: when the shock-absorbing sleeve 10 is compressed due to the upward vibration of the frame 102, as shown in fig. 2, the reserved space 90 can allow the shock-absorbing sleeve 10 located in the inner hole to expand, which makes the shock-absorbing sleeve 10 located in the inner hole of the bushing 20 participate in shock absorption through contraction deformation.

The utility model discloses a make the hole set to the cydariform and make and form headspace 90 between shock attenuation cover 10 and the hole, and then make the shock attenuation cover 10 that is arranged in the hole also can participate in the shock attenuation through shrinkage deformation, this has improved the shock attenuation effect on the one hand, and on the other hand has reduced the fatigue failure's of the part of shock attenuation cover 10 protrusion bush 20 upper end emergence probability to a certain extent, and then has improved the life of shock attenuation cover 10.

In a preferred embodiment of the present invention, the damping mechanism further includes: a fixed sleeve 50, a movable sleeve 60, and a spring 70. Specifically, a through hole is formed in the lower surface of the frame 102 (or called a beam), the through hole is coaxial with the mounting hole 103, the diameter of the through hole is smaller than that of the mounting hole 103, and the lower end of the damping sleeve 10 abuts against a stepped surface formed by the mounting hole 103 and the through hole (namely, the bottom of the mounting hole 103); the fixing sleeve 50 is inserted into the damping sleeve 10 through a through hole formed in the lower surface of the frame 102, and a third flange 51 is formed at the lower end of the fixing sleeve 50, and the third flange 51 is fixed to the lower surface of the frame 102 by a fastening member. The movable sleeve 60 extends into the damping sleeve 10 from the upper end of the damping sleeve 10, and a second flange 61 is formed at the upper end of the movable sleeve 60, the second flange 61 is lapped on the upper end of the damping sleeve 10, in this embodiment, the supporting leg 101 is lapped on the second flange 61, and the bolt 30 penetrates through the fixed sleeve 50 and the movable sleeve 60. The spring 70 is disposed between the movable sleeve 60 and the fixed sleeve 50. In the present embodiment, the spring 70 is disposed between the movable sleeve 60 and the fixed sleeve 50, and when the frame 102 vibrates, the vibration is transmitted to the movable sleeve 60, and at this time, the spring 70 takes part in the shock absorption by being deformed. In the present embodiment, the spring 70 and the damping sleeve 10 participate in damping, so that the service life of the damping sleeve 10 can be prolonged to some extent, and the overall damping stiffness can be changed by replacing the spring 70 with different elastic coefficients.

In a preferred embodiment of the present invention, the lower end of the movable sleeve 60 is formed with a guide hole, the upper end of the fixed sleeve 50 is inserted into the guide hole, and the spring 70 is disposed in the guide hole. In this embodiment, the engagement of the guide hole with the head of the fixed sleeve 50 can limit the radial play of the movable sleeve 60 with the fixed sleeve 50, and more importantly: the rigidity in the radial direction of the entire damper mechanism can be increased to avoid relative movement in the horizontal direction between the functional components and the frame 102.

In a preferred embodiment of the present invention, the bolt 30 is further sleeved with a second nut 80, and the second nut 80 abuts against the first nut 40 by rotating to limit the first nut 40 from rotating reversely and loosening during the vibration process. The second nut 80 is used to limit the unscrewing of the first nut 40.

The utility model also discloses a scavenging machine, including frame 102, engine, gearbox, have stabilizer blade 101 on this engine and the gearbox, still include foretell damper, damper is used for fixing stabilizer blade 101 on frame 102 so that engine and gearbox are fixed on frame 102.

Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or variations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. Additionally, in the foregoing detailed description, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. The utility model provides a damper for with the stabilizer blade of functional unit fix on the frame, the mounting hole has been seted up to the upper surface of frame, its characterized in that, damper includes:

the bolt penetrates through the support leg and the damping sleeve;

the first nut is sleeved on the bolt to press the damping sleeve; wherein:

2. The shock absorbing mechanism as set forth in claim 1, wherein said bushing is formed at an upper end thereof with a first flange overlapping an upper surface of said frame and fixed to said frame by a fastening member.

3. The shock absorbing mechanism according to claim 1, wherein a through hole coaxial with the mounting hole is formed in a lower surface of the frame;

the damper mechanism further includes:

the bolt penetrates through the fixed sleeve and the movable sleeve;

the support leg is lapped on the second flange.

4. The shock absorbing mechanism as set forth in claim 3, wherein said fixing cover is formed at a lower end thereof with a third flange, said third flange being fixed to a lower surface of said frame by means of a fastening member.

5. The damper mechanism according to claim 3, wherein a guide hole is formed at a lower end of the movable sleeve, an upper end of the fixed sleeve extends into the guide hole, and the spring is disposed in the guide hole.

6. The damping mechanism according to claim 1, wherein a second nut is further sleeved on the bolt, and the second nut is used for limiting the first nut from loosening.

7. A sweeper comprising a frame and a functional part having legs, characterised by a shock absorbing mechanism as claimed in any one of claims 1 to 6 for securing the legs to the frame.