An accumulator fixing device

Abstract

The utility model discloses a kind of accumulator fixing devices, including bracket with clamping groove, vertical column, cross-shaped fixed pressing plate and rubber pad.Arch-shaped support groove is formed by arc-shaped bending plate, clamping plate and web welding, and the clamping groove on clamping plate is matched with accumulator bayonet to prevent rotation.Among fixed pressing plate, there is bevel pressing part, and it is connected with vertical column through wing plate.Rubber pad is provided with matching bevel, which is attached to the bevel of pressing plate, and is fixed through step retainer and bolt.The utility model utilizes the principle of force composition, and realizes the stable constraint of accumulator through three-point support and bevel pressing.The structure is simple and compact, effectively solves the problems of complex structure, easy rotation and poor vibration resistance in traditional fixing mode, has the advantages of reliable anti-rotation, good vibration reduction effect, prevention of over-tightening damage and strong versatility, and is especially suitable for special equipment such as construction machinery.

Description

Technical Field

[0001] This utility model relates to the field of fixed structure technology, specifically to an energy storage device. Background Technology

[0002] An accumulator is an energy storage device in hydraulic and pneumatic systems. It primarily functions to store and replenish energy within the system, while also acting as a "pressure stabilizer" to maintain normal system pressure during sudden pressure changes.

[0003] Traditional accumulator fixing typically uses clamps or U-shaped clamps supplemented by supports. The supports hold the accumulator in place, while the clamps or U-shaped clamps clamp it in place. This method only effectively fixes the accumulator radially; circumferential rotation is limited only by the friction generated between the clamps or U-shaped clamps and the accumulator under clamping force. When the torque of the connectors installed on the accumulator exceeds the torque generated by the clamping force, the accumulator will rotate, causing the connectors and other connecting parts to become loose and leading to oil leaks, as illustrated in the accumulator fixing device disclosed in Chinese Utility Model Patent CN203907175U. Traditional accumulator fixing devices occupy a significant amount of space. For equipment with limited space, minimizing the number of fixing devices to effectively save installation space is essential. Furthermore, after prolonged operation, vibration can cause the clamps or U-shaped clamps to loosen or even break, leading to accumulator detachment and system malfunctions. Summary of the Invention

[0004] The purpose of this utility model is to provide a novel accumulator fixing device. This device makes full use of the principle of force composition and eliminates traditional clamps or U-shaped clamps. While fixing the accumulator, it also provides a slot to prevent the accumulator from rotating when installing other parts on the accumulator, and to ensure a firm connection between the connector, hydraulic pipe and other components and the accumulator, effectively preventing leakage and other faults.

[0005] The technical solution of this utility model is: an energy storage device, including a bracket with a slot, a pair of columns vertically arranged on the bracket, and a rubber pad and a fixing plate arranged sequentially at the end of the columns. The bracket is an arc-shaped support groove, and the side wall of the arc-shaped support groove is provided with a slot. The columns are symmetrically arranged on the center line of the arc-shaped support groove. The fixed pressure plate is cross-shaped, with its two long ends connected to the ends of the column. The middle part is plate-shaped, and the lower end of the plate is provided with a sloping pressing part. The rubber pad is in contact with the fixed pressure plate and is provided with a matching sloping surface that fits the sloping pressing part.

[0006] Furthermore, the bracket includes an arc-shaped curved plate, with a retaining plate and a stiffening plate welded to opposite ends of the arc-shaped curved plate to form an arc-shaped support groove, and a retaining groove is provided along the upper end of the retaining plate.

[0007] Furthermore, the curved plate has a mounting hole, through which a set of fastening components passes in sequence. The fastening components include a bracket bolt, a first washer fitted on the bolt, and a nut screwed onto the end of the bolt.

[0008] Furthermore, the main body of the fixed pressure plate is a cross-shaped structure, which includes a central rectangular plate and two elongated wing plates extending integrally from both sides of the rectangular plate. The width of the wing plates is smaller than the width of the central rectangular plate. The bottom surface of the central rectangular plate is machined with inclined surfaces symmetrical along its center line on both sides. Mounting holes are also provided on the central rectangular plate and the two wing plates.

[0009] Furthermore, the mounting holes on the elongated wing plate are coaxially aligned with the upper end of the column, and are fixedly connected to the column by a second washer and a pressure plate bolt.

[0010] Furthermore, the rubber pad includes a plate-shaped main body, with inclined plates extending integrally upward from opposite ends of the plate-shaped main body. The plate-shaped main body has mounting holes, and the overall outline of the rubber pad is adapted to the shape of the bottom surface of the rectangular plate of the fixed pressure plate.

[0011] Furthermore, the mounting holes on the pad-shaped main body are coaxially aligned with the mounting holes on the rectangular plate of the fixed pressure plate, and a pad bolt is provided to pass through the retaining ring, the mounting hole of the fixed pressure plate, and the mounting hole of the pad in sequence for locking.

[0012] Furthermore, the retaining ring is designed with a step. The beneficial effects of this utility model are: 1. This device features a simplified structure and improved reliability. Through a clever combination of three-point support and inclined plane clamping, the complex spatial fixing problem is simplified into a stable static equilibrium system. This allows the fixing device to achieve fixing reliability far exceeding that of traditional clamps while greatly simplifying its structure. The simplified structure results in a significant reduction in manufacturing costs, a significant shortening of the production cycle, and extremely convenient installation and maintenance, making it particularly suitable for mass application in special equipment such as engineering machinery and mining machinery in environments with compact spaces and high vibration.

[0013] 2. The unique anti-rotation bayonet design of this device fundamentally eliminates the circumferential rotation of the accumulator caused by vibration during installation of pipeline joints or long-term operation. This effectively prevents serious malfunctions such as loosening, leakage, or even breakage of joints caused by accumulator rotation, greatly improving the safety and reliability of the entire hydraulic system.

[0014] 3. The cross-shaped fixing plate and the rubber pad with a matching bevel together form a clamping system that provides rigid clamping and flexible transmission. The bevel structure converts the vertical locking force of the bolts into a beveled clamping force, while the rubber pad acts as a buffer and vibration damping core. This design not only provides uniform and stable clamping force, but more importantly, it effectively isolates and absorbs impacts and vibrations from the equipment body, protecting the accumulator casing from fatigue damage and extending the service life of the accumulator itself.

[0015] 4. This utility model achieves long-term protection for key components. The stepped retaining ring 5 designed for the rubber pad provides reliable mechanical restraint when tightening bolts, effectively preventing the rubber pad from being squeezed or sheared due to over-tightening. This improves the maintenance cycle and reliability of the fixing device throughout its entire life cycle and reduces maintenance requirements. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of the accumulator installation of this utility model; Figure 2 This is a schematic diagram of the energy storage device installation of this utility model; Figure 3 This is a schematic diagram of the energy storage bracket of this utility model; Figure 4 This is a schematic diagram of the fixed pressure plate of this utility model; Figure 5 This is a schematic diagram of the force analysis of the energy storage device of this utility model.

[0018] Reference numerals in the attached drawings: bracket bolt-1, first washer-2, bracket-3, rubber pad bolt-4, retaining ring-5, rubber pad-6, fixing pressure plate-7, second washer-8, pressure plate bolt-9, column-10, bending plate-11, clamping plate-12, stiffening plate-14, accumulator-A. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. Any modifications, substitutions and alterations made based on ordinary technical knowledge and conventional means in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.

[0020] Example 1: Structure of the fixing device, see [link / reference] Figure 1 The energy storage device mainly includes a bracket 3, a column 10, a fixing plate 7, and a rubber pad 6.

[0021] Support 3 serves as the foundation for the entire device; its structure is described in [reference needed]. Figure 3 The bracket 3 is welded from an arc-shaped bent plate 11, a retaining plate 12, and a stiffening plate 14. The arc-shaped bent plate 11 forms the main arc-shaped support surface. The retaining plate 12 is welded to one end of the arc-shaped bent plate 11, and its upper edge has a retaining groove for engaging with the retaining plate on the accumulator A. The stiffening plate 14 is welded to the other end of the arc-shaped bent plate 11, and together with the retaining plate 12, it enhances the structural strength of the arc-shaped bent plate 11 and prevents it from expanding under stress. A pair of uprights 10 are vertically welded to the arc-shaped bent plate 11 and symmetrically arranged on both sides of its center line. The arc-shaped bent plate 11 also has mounting holes, through which a set of fastening components passes in sequence. The fastening components include a bracket bolt 1, a first washer 2 fitted onto the bolt, and a nut 13 screwed onto the end of the bolt, used to fix the entire bracket 3 to the mounting base.

[0022] See the structure of the fixed pressure plate 7. Figure 4 The overall shape is cross-shaped. It includes a central rectangular plate and two elongated wing plates extending integrally from both sides of the rectangular plate. The width of the wing plates is smaller than the width of the central rectangular plate. The bottom surface of the central rectangular plate has symmetrical bevels along its center line on both sides, forming beveled clamping parts. Mounting holes are provided on the central rectangular plate and the two wing plates. The mounting holes on the wing plates are coaxially aligned with the upper end of the column 10 and are fixedly connected to the column 10 by the second washer 8 and the pressure plate bolt 9.

[0023] The rubber pad 6 comprises a plate-shaped main body, with inclined plates extending integrally upward from opposite ends of the main body. Mounting holes are provided on the plate-shaped main body. The overall outline of the rubber pad 6 is adapted to the shape of the bottom surface of the central rectangular plate of the fixing pressure plate 7. The mounting holes on the plate-shaped main body of the rubber pad 6 are coaxially aligned with the mounting holes on the central rectangular plate of the fixing pressure plate 7. The rubber pad bolts 4 are then tightened by sequentially passing through the retaining ring 5, the mounting holes of the fixing pressure plate 7, and the mounting holes of the rubber pad 6. The retaining ring 5 is designed with a stepped structure, which acts as a limit when tightening the rubber pad bolts 4, preventing the rubber pad 6 from being excessively compressed and damaged.

[0024] Example 2: Accumulator A is installed on the fixing device described in Example 1. During installation, the bracket 3 is first securely installed in the predetermined position of the equipment using bracket bolts 1, first washers 2, and nuts 13. Then, accumulator A is placed in the arc-shaped support groove of the bracket 3, ensuring its locking mechanism accurately engages with the slot on the locking plate 12. This design effectively prevents circumferential rotation of accumulator A during pipe joint installation or equipment vibration. Next, the two elongated flanges of the fixing plate 7 are fitted onto the tops of the columns 10 on both sides through their mounting holes, and the second washer 8 is inserted. The pressure plate bolts 9 are then tightened to initially fix the fixing plate 7. Then, the rubber pad 6 is placed on top of accumulator A, with its beveled side facing upwards. The central rectangular plate of the fixing plate 7 is pressed down, ensuring its beveled pressing part fits tightly against the mating bevel of the rubber pad 6. Finally, the rubber pad bolt 4 is passed sequentially through the stepped retaining ring 5, the mounting hole of the rectangular plate in the middle of the fixing plate 7, and the mounting hole of the plate-shaped body of the rubber pad 6, and the nut is tightened. During this process, the stepped retaining ring 5 can effectively prevent shear damage to the soft rubber pad 6 due to excessive bolt tightening force.

[0025] This installation method utilizes an inclined structure to generate a downward clamping force, combined with the arc-shaped support of bracket 3, to achieve a stable yet flexible clamp-like fixation of accumulator A. This fixing device has a simple structure, few components, low manufacturing cost, and convenient installation; the interlocking of slots and jaws fundamentally solves the problem of accumulator rotation; the rubber pad 6 and the inclined clamping structure provide excellent vibration reduction and buffering effects, protecting the accumulator casing; the overall device has a compact structure and small size, making it particularly suitable for installation in space-constrained engineering machinery, mining machinery, and other special equipment.

[0026] Example 3: See Appendix Figure 5 The stress state of accumulator A after installation was analyzed. Once accumulator A is fully fixed, its stress can be simplified to a spatial force system equilibrium problem. Each accumulator A is constrained by three main support points in the device: two support points provided by the arc-shaped support groove of bracket 3 (B, C and B, C in the diagram), and one support point applied by the fixing plate 7 through the rubber pad 6 (points A and A′ in the diagram). The forces are Fa, Fb, Fc and Fa′, Fb′, Fc′, and the resultant force of any two of these three forces equals the third force. The resultant force of Fa + Fb is downward, ensuring that the accumulator is constrained within the bracket, thus achieving effective fixation of the accumulator. Through the ingenious combination of forces at the three support points, the device achieves effective spatial constraint on accumulator A, ensuring its stability under complex working conditions. This simple fixing device fully utilizes the principles of mechanics, achieving the fixing effect that only complex specialized clamps can achieve with a minimal number of components.

[0027] The above provides a detailed description of the energy storage device provided by this utility model. Specific examples have been used to illustrate the structure and working principle of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. An energy storage device for fixing an energy storage device, characterized in that: Includes a bracket (3) with a slot, a pair of columns (10) are vertically arranged on the bracket (3), and rubber pads (6) and fixing plates (7) are arranged at the ends of the columns (10). The bracket (3) is an arc-shaped support groove, and a slot is provided on the side wall of the arc-shaped support groove. The columns (10) are symmetrically arranged on the center line of the arc-shaped support groove. The fixed pressure plate (7) is cross-shaped in general. Its two long ends are connected to the ends of the column (10). The middle part is plate-shaped. The lower end of the plate-shaped part is provided with a sloping pressing part. The rubber pad (6) is attached to the fixed pressure plate and is provided with a fitting sloping surface that fits the sloping pressing part.

2. The energy storage device according to claim 1, characterized in that: The bracket (3) includes an arc-shaped bent plate (11), and a clamping plate (12) and a stiffening plate (14) are welded to the opposite ends of the arc-shaped bent plate (11) to form an arc-shaped support groove. A clamping groove is provided along the upper end of the clamping plate (12).

3. The energy storage device according to claim 2, characterized in that: The bent plate (11) has an installation hole, and a set of fastening components passes through the installation hole in sequence. The fastening components include a bracket bolt (1), a first washer (2) sleeved on the bolt, and a nut (13) screwed into the end of the bolt.

4. The energy storage device according to claim 1, characterized in that: The main body of the fixed pressure plate (7) is a cross-shaped structure, which includes a central rectangular plate and two long strip-shaped wing plates extending integrally from both sides of the rectangular plate. The width of the wing plates is smaller than the width of the central rectangular plate. The bottom surface of the central rectangular plate is processed with inclined surfaces symmetrical along its center line on both sides. Mounting holes are also provided on the central rectangular plate and the two wing plates.

5. The energy storage device according to claim 4, characterized in that: The mounting holes on the elongated wing plate are coaxially aligned with the upper end of the column (10) and are fixedly connected to the column (10) by the second washer (8) and the pressure plate bolt (9).

6. The energy storage device according to claim 1, characterized in that: The rubber pad (6) includes a plate-shaped main body, with inclined plates extending upward from opposite ends of the plate-shaped main body. The plate-shaped main body has mounting holes, and the overall outline of the rubber pad (6) is adapted to the shape of the bottom surface of the rectangular plate of the fixing pressure plate (7).

7. The energy storage device according to claim 6, characterized in that: The mounting holes on the plate-shaped body of the rubber pad (6) are coaxially aligned with the mounting holes on the rectangular plate of the fixed pressure plate (7). A rubber pad bolt (4) is provided to pass through the mounting holes of the retaining ring (5), the fixed pressure plate (7), and the rubber pad (6) in sequence for locking.

8. The energy storage device according to claim 7, characterized in that: The retaining ring (5) is designed with a step.

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