CN103982581B - Anti-drop and anti-corrosion shearing type metal rubber vibration isolator - Google Patents

Abstract

The invention discloses an anti-drop and anti-corrosion shearing type metal rubber vibration isolator, and belongs to the technical field of loader cab vibration dampers. An anti-drop and anti-corrosion shearing type metal rubber vibration isolator comprises an upper metal plate, a lower metal sheet and a rubber vibration isolation original piece fixed between the upper metal plate and the lower metal sheet; the middle position in the upper metal sheet and the lower metal sheet is provided with an anti-falling sleeve; and a conical anti-corrosion protective shell is arranged on the outer side of the rubber vibration isolation element. On the premise of not increasing additional stabilizing measures, the anti-drop sleeve is utilized to prevent the danger that the whole cab is separated from the frame due to the separation of the rubber vibration isolation original parts from the upper metal sheet and the lower metal sheet, the life safety of a driver is guaranteed, and the anti-corrosion protective shell can isolate the corrosion action of external oil stains and the like on the rubber vibration isolation original parts, so that the service life of the vibration isolator is prolonged.

Description

A shear-type metal-rubber vibration isolator that prevents detachment and corrosion

technical field

The invention relates to a vibration damping device for a cab of a loader, in particular to a shear-type metal rubber vibration isolator which prevents detachment and corrosion.

Background technique

In most cases, the vibration of the equipment is harmful. It can reduce the service life of the equipment, reduce the processing accuracy of the equipment, and may also affect the physical and mental health of the operator. With the continuous development of society, the requirements for the development of the manufacturing industry are getting higher and higher, so it is necessary to find an effective measure for shock and noise reduction, and the design and application of vibration isolators is an effective way . There are many types of vibration isolators, which can be divided into: metal spring vibration isolators, air vibration isolators, rubber vibration isolators, liquid resistance vibration isolators, etc. according to the different materials used. At present, among the effective measures for shock and noise reduction of equipment in related fields such as vehicles, ships, and aviation, metal rubber shock-isolating devices are used more often. Because the metal rubber shock absorber is easy to process, the cost is relatively low, and at the same time, the vibration isolation frequency can reach about 20Hz, which can effectively reduce the transmission of vibration, improve the service life of the equipment and maintain good operating performance.

The most important component of the metal rubber vibration isolator is the rubber unit. The rubber has a relatively narrow temperature range and is easily corroded by air and oil. It cannot adapt to the long-term high load, high strength, and large temperature difference environment. In the actual situation of construction machinery, the damage of the rubber unit will be accelerated due to the harsh working environment and the large intensity of the load change. In addition, the vulcanization process is used to bond the metal and rubber in the metal rubber vibration isolator. Under the condition of large load changes and environmental corrosion, it is easy to fall off, which may cause a series of engineering accidents.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a space-saving, high-durability anti-corrosion and anti-corrosion shear-type metal rubber vibration isolator.

The present invention is achieved through the following technical solutions: a shear-type metal-rubber vibration isolator that prevents detachment and corrosion, including an upper metal plate, a lower metal sheet, and a rubber vibration-isolating element fixed between the upper and lower metal sheets; The upper metal plate is connected with the cab support plate; the lower metal plate is connected with the vehicle frame;

The upper metal plate includes a circular plate in the middle and a downwardly inclined conical plate I fixed on the edge of the circular plate; the lower metal plate includes a circular plate located below the conical plate I and parallel to the conical plate I The conical plate II and the ring plate fixed on the outer edge of the conical plate II have an opening in the middle of the conical plate II; there are more than three symmetrically fixed between the conical plate I and the conical plate II. Rubber vibration isolation elements;

An anti-falling sleeve is provided in the middle of the upper and lower metal sheets, the upper end of the anti-falling sleeve is fixed at the center of the lower surface of the circular plate of the upper metal plate, and the lower end of the anti-falling sleeve is provided with a large-diameter disc. The disc of the anti-falling sleeve is located below the opening of the lower metal sheet, and the diameter of the anti-falling sleeve disc is larger than the diameter of the opening of the lower metal sheet;

A tapered anti-corrosion protective shell is provided outside the rubber vibration isolation element, and the anti-corrosion protective shell includes a circle of inverted cone-shaped baffles and a circle of fixed plates fixed on the upper end of the baffle and extending inward; The anti-corrosion protective shell fixing plate is fixed on the outer end of the conical plate I of the upper metal plate, and there is a gap between the lower end of the anti-corrosion protective shell baffle and the conical plate II of the lower metal sheet.

Its further step is: the hole between the anti-falling sleeve and the circular plate of the upper metal plate is in contact with each other and fixedly connected by the bolt I.

The anti-falling sleeve, the upper metal plate and the cab support plate are in center-to-center contact with each other and are fixedly connected by bolts I.

The diameter of the opening between the anti-falling sleeve, the upper metal plate and the cab support plate is 20-24mm.

The bolt I penetrates into the hole from bottom to top, and the bolt cap of the bolt I is located on the upper surface of the cab support plate.

The diameter of the anti-falling sleeve disk is 6-8mm larger than the opening diameter of the lower metal sheet, and the vertical distance between the anti-falling sleeve disk and the inner side of the conical plate II of the lower metal sheet is 2-4mm.

The anti-corrosion protective shell fixing plate is fixed on the upper surface of the outer end of the upper metal plate, and the anti-corrosion protective shell baffle is perpendicular to the conical plate I of the upper metal plate.

The anti-corrosion protection shell is composed of half shells arranged symmetrically.

There is a gap of 3-5 mm between the lower end of the anti-corrosion protective shell baffle and the conical plate II of the lower metal sheet.

A pair of left and right symmetrical installation holes are opened on the ring plate of the lower metal sheet, and the lower metal sheet is connected with the frame bolts through the installation holes.

The beneficial effects of the present invention are: on the premise of not adding additional stabilizing measures, the design of the anti-falling sleeve is used to prevent the danger of the entire driver's cab being separated from the vehicle frame due to the separation of the rubber vibration isolation element from the upper and lower metal sheets , to ensure the life safety of the driver. Because the working environment of the loader is relatively harsh, oil will corrode the rubber vibration isolation components and accelerate the aging of the rubber. The design of the anti-corrosion protection shell can isolate the corrosion of the rubber vibration isolation components such as external oil pollution. role, thereby prolonging the service life of the vibration isolator.

Description of drawings

Fig. 1 is a schematic diagram of installation of the present invention;

Fig. 2 is a front sectional view in Fig. 1;

Figure 3 is a three-dimensional view of the present invention.

In the figure: 1. Bolt I; 2. Bolt cap; 3. Cab support plate; 4. Anti-corrosion protection shell; 5. Upper metal plate; 51. Circular plate; 52. Conical plate I; 6. Rubber partition 7. Lower metal sheet; 71. Ring plate; 72. Conical plate II; 8. Anti-falling sleeve; 9. Vehicle frame.

detailed description

The following is a specific embodiment of the present invention, and the present invention will be further described in conjunction with the accompanying drawings.

As shown in Figures 1 to 3, an anti-corrosion shearing metal rubber vibration isolator includes an upper metal plate 5, a lower metal sheet 7, and rubber fixed between the upper and lower metal sheets 5 and 7. The vibration isolation element 6, the rubber vibration isolation element 6 selects natural rubber, and the Shore hardness is between 60-63; The lower metal sheet 7 is composed of a conical plate II72 located below the conical plate I52 and parallel to the conical plate I52 and a ring plate 71 fixed on the outer edge of the conical plate II72. The middle part of the conical plate II72 is left Holes are opened, and more than three rubber vibration isolation elements 6 are symmetrically fixed by vulcanization between the conical plate I52 and the conical plate II72. The thickness of the upper and lower metal sheets 5 and 7 is preferably in the range of 8-10mm. Plate I, II 52, 72 slopes are 6-8mm longer than rubber slopes, and a pair of left and right symmetrical installation holes are arranged on the ring plate 71 of the lower metal sheet 7, and the lower metal sheet 7 is connected with the vehicle frame 9 bolts through the installation holes; The upper end of the shedding sleeve 8 is aligned with the center of the circular plate 51 of the upper metal plate 5, and the openings between the anti-falling sleeve 8, the circular plate 51 and the cab support plate 3 are in contact with each other and fixedly connected by high-strength bolts I1 , the diameter of the hole is 20-24mm, the bolt I1 penetrates into the hole from bottom to top, the bolt cap 2 of the bolt I1 is located on the upper surface of the cab support plate 3, and the lower end of the anti-falling sleeve 8 is provided with a large diameter disc to prevent The shedding sleeve 8 disk is located below the opening of the lower metal sheet 7, the diameter of the anti-shedding sleeve 8 disk is 6-8mm larger than the opening diameter of the lower metal sheet 7, and the distance between the anti-shedding sleeve 8 and the lower metal sheet 7 The vertical distance inside the conical plate II 72 is 2-4mm; the anti-corrosion protective shell 4 includes a circle of inverted conical baffle plates and a circle of fixed plates fixed on the upper end of the baffle plate and extending inward. The preferred material of the anti-corrosion protective shell 4 is Plastic, composed of half-shells symmetrically arranged left and right, the anti-corrosion protection shell 4 fixed plate is connected and fixed on the outer end of the conical plate I52 of the upper metal plate 5 with four bolts, the conical shape of the anti-corrosion protection shell 4 and the upper metal plate 5 The plate I52 is vertical, and there is a gap of 3-5mm between the lower end of the baffle plate and the conical plate II72 of the lower metal sheet 7.

Claims (10)

1. A shear-type metal rubber vibration isolator that prevents detachment and corrosion, including an upper metal plate (5), a lower metal sheet (7) and a metal plate fixed between the upper metal plate (5) and the lower metal sheet (7). rubber vibration isolation element (6); the upper metal plate (5) is connected to the cab support plate (3); the lower metal plate (7) is connected to the frame (9); It is characterized by: The upper metal plate (5) includes a circular plate (51) in the middle and a conical plate I (52) that is fixed on the edge of the circular plate (51) and slopes downward; the lower metal plate (7) It includes a conical plate II (72) located below the conical plate I (52), parallel to the conical plate I (52), and a ring plate (71) fixed on the outer edge of the conical plate II (72). There is an opening in the middle of the plate II (72); more than three rubber vibration isolation elements (6) are symmetrically fixed between the conical plate I (52) and the conical plate II (72); An anti-falling sleeve (8) is provided at the inner middle position of the upper metal plate (5) and the lower metal sheet (7), and the upper end of the anti-falling sleeve (8) is fixed on the circular plate of the upper metal plate (5) (51) At the center of the lower surface, the lower end of the anti-falling sleeve (8) is provided with a disc with a large diameter, and the disc of the anti-falling sleeve (8) is located below the opening of the lower metal sheet (7). (8) The diameter of the disc is greater than the diameter of the opening of the lower metal sheet (7); A tapered anti-corrosion protective shell (4) is provided outside the rubber vibration isolation element (6), and the anti-corrosion protective shell (4) includes a circle of inverted cone-shaped baffles and a circle fixed on the baffle The fixed plate extending inward from the top of the plate; the anti-corrosion protective shell (4) fixed plate is fixed on the outer end of the conical plate I (52) of the upper metal plate (5), and the lower end of the anti-corrosion protective shell (4) baffle plate is connected to the lower metal There is a gap between the conical plates II (72) of the sheet (7). 2. A shear-type metal-rubber vibration isolator that prevents detachment and corrosion according to claim 1, characterized in that: the detachment-preventing sleeve (8) and the circular plate of the upper metal plate (5) ( 51) are in center-to-center contact with the openings and are fixedly connected by bolt Ⅰ (1). 3. A shear-type metal-rubber vibration isolator that prevents detachment and corrosion according to claim 2, characterized in that: the detachment-preventing sleeve (8), the upper metal plate (5) and the cab support plate (3) The openings are in center-to-center contact and are fixedly connected by bolt Ⅰ (1). 4. An anti-corrosion and anti-corrosion shearing metal rubber vibration isolator according to claim 3, characterized in that: the anti-falling sleeve (8), the upper metal plate (5) and the cab support plate (3) The diameter of the hole on the top is 20-24mm. 5. A anti-corrosion and anti-corrosion shear-type metal rubber vibration isolator according to claim 3, characterized in that: the bolt I (1) penetrates into the hole from bottom to top, and the bolt I (1) The bolt caps (2) are located on the upper surface of the cab support plate (3). 6. An anti-corrosion and anti-corrosion shearing metal rubber vibration isolator according to claim 1, characterized in that: the disc diameter of the anti-shedding sleeve (8) is smaller than the opening of the lower metal sheet (7). The hole diameter is 6-8mm large, and the vertical distance inside the conical plate II (72) of the anti-falling sleeve (8) disc is 2-4mm away from the lower metal sheet (7). 7. A anti-corrosion and anti-corrosion shearing metal rubber vibration isolator according to claim 1, characterized in that: the fixed plate of the anti-corrosion protection shell (4) is fixed on the outer end of the upper metal plate (5) On the upper surface, the anti-corrosion protective shell (4) baffle plate is perpendicular to the conical plate I (52) of the upper metal plate (5). 8. The anti-corrosion and anti-corrosion shearing metal rubber vibration isolator according to claim 1, characterized in that: the anti-corrosion protective shell (4) is composed of half shells arranged symmetrically from left to right. 9. An anti-corrosion and anti-corrosion shearing metal rubber vibration isolator according to claim 1, characterized in that: the lower end of the baffle plate of the anti-corrosion protection shell (4) and the cone of the lower metal sheet (7) Leave a 3-5mm gap between the shaped plates II (72). 10. A anti-corrosion and anti-corrosion shearing metal rubber vibration isolator according to claim 1, characterized in that: the ring plate (71) of the lower metal sheet (7) has a pair of left and right symmetrical The mounting hole, the lower metal sheet (7) is bolted to the vehicle frame (9) through the mounting hole.