A multi-point supporting device for repairing a large oil cylinder

Abstract

The utility model discloses a kind of multi-point supporting devices for large oil cylinder repair, it is related to machining equipment field, including vehicle board, lifting frame body and two groups of lifting units, the lifting frame body includes linear drive component and two guide rods, guide rod is fixedly installed on the upper surface of vehicle board, its outside is equipped with lifting sleeve, at least one connecting rod is fixedly installed between two the lifting sleeve;Linear drive component is fixedly installed between vehicle board and connecting rod, the utility model places oil cylinder on four groups of supporting wheels, four groups of supporting wheels are supported to oil cylinder by multiple points, effectively disperses the weight of oil cylinder and external force suffered when processing, in the repair process, greatly reduce the risk that oil cylinder occurs shaking, deviation or even drop, avoid the repair precision and quality decline due to unstable oil cylinder, reduce the occurrence of equipment damage, personnel injury and other safety accidents, provide safe and stable basis for repair work.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing equipment, and specifically relates to a multi-point support device for repairing large hydraulic cylinders. Background Technology

[0002] Large hydraulic cylinders, as key actuators, are widely used in many industries such as construction machinery, mining equipment, and shipbuilding. With the increase in usage time and workload, large hydraulic cylinders inevitably experience wear, deformation, and other malfunctions, requiring repair to restore their performance and service life.

[0003] Currently, in the repair of large hydraulic cylinders, a chuck is typically used to clamp and fix one end of the cylinder to facilitate subsequent repair operations such as boring and grinding. However, this clamping method has significant shortcomings, with severely insufficient stability.

[0004] Because large hydraulic cylinders are typically bulky and heavy, they are prone to shaking, shifting, or even falling off when held by a single chuck under external force or during machining operations. This not only severely affects the accuracy and quality of the repair work but can also lead to safety accidents such as equipment damage and personnel injury. For example, when machining the surface of a hydraulic cylinder, the cylinder's shaking can cause unstable contact between the tool and the cylinder, resulting in a surface finish that fails to meet requirements and may even damage the tool.

[0005] Therefore, we propose a multi-point support device for the repair of large hydraulic cylinders to solve the above problems. Utility Model Content

[0006] Currently, in the repair process of large hydraulic cylinders, a chuck is usually used to clamp and fix one end of the cylinder. However, this clamping method has obvious shortcomings and serious instability. This utility model provides a multi-point support device for the repair of large hydraulic cylinders.

[0007] The solution adopted by this utility model to solve its technical problem is: a multi-point support device for repairing large hydraulic cylinders, including a car plate, a lifting frame and two sets of lifting units. The lifting frame includes a linear drive component and two guide rods. The guide rods are fixedly installed on the upper surface of the car plate, and a lifting sleeve is sleeved on the outside of the guide rods. At least one connecting rod is fixedly installed between the two lifting sleeves.

[0008] The linear drive component is fixedly installed between the vehicle plate and the connecting rod, and is used to drive the connecting rod and the lifting sleeve to move up and down;

[0009] Two sets of lifting units are respectively set at the lower ends of two lifting sleeves. The lifting unit includes a fixed arm and two support arms. The fixed arm is welded and fixed to the side of the lifting sleeve. The two support arms are welded and fixed to both ends of the fixed arm. An adjusting arm is provided at the other end of the support arm. The support arm and the adjusting arm are connected by an adjusting component. Support wheels for supporting the hydraulic cylinder are fixedly installed on the top of both the support arm and the adjusting arm.

[0010] Preferably, a pusher frame is fixedly installed on the upper surface of the vehicle platform, and multiple wheels are fixedly installed on its bottom.

[0011] Preferably, a counterweight box is placed on the upper surface of the vehicle platform.

[0012] Preferably, the linear drive component is a hydraulic rod or an electric cylinder.

[0013] Preferably, two ribs are welded and fixed between the fixed arm and the lifting sleeve.

[0014] Preferably, one end of the adjusting arm is open, and two threaded holes are provided at its bottom.

[0015] Preferably, the adjusting assembly includes a connecting arm, one end of which is fixedly connected to the support arm, and the other end is slidably disposed in the inner cavity of the adjusting arm. The bottom end of the connecting arm has multiple sets of positioning holes, and the threaded hole and the corresponding positioning hole are provided with the same positioning bolt.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model places the hydraulic cylinder on four sets of support wheels, which provide multi-point support for the hydraulic cylinder, effectively dispersing the weight of the hydraulic cylinder and the external force during processing. During the repair process, it greatly reduces the risk of the hydraulic cylinder shaking, shifting, or even falling off, avoiding the decline in repair accuracy and quality due to hydraulic cylinder instability. At the same time, it reduces the occurrence of safety accidents such as equipment damage and personnel injury, providing a safe and stable foundation for repair work.

[0018] 2. This utility model controls the extension of the hydraulic rod to drive the connecting rod and lifting sleeve to move upward, thereby precisely adjusting the height of the lifting unit according to the different specifications and sizes of large hydraulic cylinders and different repair operation requirements, so that the hydraulic cylinder is in a suitable processing position.

[0019] 3. By setting a connecting arm and an adjusting arm, the position of the adjusting arm can be flexibly adjusted according to the diameter of the oil cylinder, thereby changing the distance between the two support wheels so that the support wheels can stably support the oil cylinder, thus improving the practicality and versatility of the device. Attached Figure Description

[0020] Figure 1This is one of the three-dimensional structural schematic diagrams of this utility model;

[0021] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the support arm of this utility model.

[0023] In the diagram: 1. Car platform, 2. Hand push frame, 3. Wheel, 4. Counterweight box, 51. Lifting sleeve, 52. Connecting rod, 53. Guide rod, 6. Hydraulic rod, 71. Fixed arm, 72. Rib plate, 73. Support arm, 74. Support wheel, 75. Connecting arm, 76. Positioning bolt, 77. Positioning hole, 78. Adjusting arm. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please see Figure 1-3 This utility model provides a technical solution for a multi-point support device for repairing large hydraulic cylinders:

[0026] Example 1:

[0027] according to Figure 1-3 As shown, the device includes a platform 1, a lifting frame and two sets of lifting units. A push frame 2 is fixedly installed on the upper surface of the platform 1, and multiple wheels 3 are fixedly installed on its bottom to facilitate movement. A counterweight box 4 is placed on the upper surface of the platform 1.

[0028] The lifting frame includes a linear drive component and two guide rods 53. The guide rods 53 are fixedly installed on the upper surface of the vehicle plate 1, and lifting sleeves 51 are sleeved on their outer sides. At least one connecting rod 52 is fixedly installed between the two lifting sleeves 51 so that the two lifting sleeves 51 can be raised and lowered synchronously.

[0029] The linear drive component is a hydraulic rod 6 or an electric cylinder. The hydraulic rod 6 is fixedly installed between the vehicle plate 1 and the connecting rod 52. By controlling the extension and retraction of the hydraulic rod 6, the connecting rod 52 and the lifting sleeve 51 are driven to move up and down.

[0030] Two sets of lifting units are respectively set at the lower ends of two lifting sleeves 51. The lifting unit includes a fixed arm 71 and two support arms 73. The fixed arm 71 is welded and fixed to the side of the lifting sleeve 51, and the two support arms 73 are welded and fixed to both ends of the fixed arm 71 respectively.

[0031] The other end of the support arm 73 is provided with an adjusting arm 78. One end of the adjusting arm 78 is open, and two threaded holes are opened at its bottom. The support arm 73 and the adjusting arm 78 are connected by an adjusting assembly. The adjusting assembly includes a connecting arm 75. One end of the connecting arm 75 is fixedly connected to the support arm 73, and the other end is slidably disposed in the inner cavity of the adjusting arm 78. The position of the adjusting arm 78 can be flexibly adjusted according to the diameter of the hydraulic cylinder. The bottom end of the connecting arm 75 is provided with multiple sets of positioning holes 77. The same positioning bolt 76 is provided in the threaded hole and the corresponding positioning hole 77. The position of the adjusting arm 78 is fixed by the positioning bolt 76.

[0032] Both the top of the support arm 73 and the adjusting arm 78 are fixedly equipped with support wheels 74 for supporting the hydraulic cylinder. By placing the hydraulic cylinder on the four sets of support wheels 74, the four sets of support wheels 74 provide multi-point support for the hydraulic cylinder, effectively dispersing the weight of the hydraulic cylinder and the external force during processing. During the repair process, the risk of the hydraulic cylinder shaking, shifting or even falling off is greatly reduced, avoiding the decline in repair accuracy and quality due to the instability of the hydraulic cylinder. At the same time, it reduces the occurrence of safety accidents such as equipment damage and personnel injury, providing a safe and stable foundation for the repair work.

[0033] In practical use, the multi-point support device for repairing a large hydraulic cylinder of this utility model first adjusts the position of the adjusting arm 78 according to the diameter of the hydraulic cylinder so that the distance between the two support wheels 74 is adapted to the hydraulic cylinder so that the support wheels 74 can provide stable support for the hydraulic cylinder. Then, the positioning bolt 76 is threaded into the threaded hole and screwed into the positioning hole 77. After that, the position of the remaining adjusting arms 78 is adjusted one by one.

[0034] After adjusting the four sets of support wheels 74 to a suitable spacing, the lifting equipment hoists the cylinder onto the four sets of support wheels 74. The four sets of support wheels 74 provide multi-point support for the cylinder. Finally, the device is moved to the machine tool, the extension of the hydraulic rod 6 is controlled, and the connecting rod 52 and the lifting sleeve 51 are driven to move upward, raising the cylinder to a suitable height so that one end of the cylinder corresponds to the chuck. The chuck is then operated to clamp one end of the cylinder for subsequent repair.

[0035] Example 2:

[0036] Based on Example 1, such as Figure 1 As shown, two ribs 72 are welded and fixed between the fixed arm 71 and the lifting sleeve 51.

Claims

1. A multi-point support device for repairing large hydraulic cylinders, comprising a platform, a lifting frame, and two sets of lifting units, characterized in that: The lifting frame includes a linear drive component and two guide rods. The guide rods are fixedly installed on the upper surface of the vehicle platform, and lifting sleeves are sleeved on their outer sides. At least one connecting rod is fixedly installed between the two lifting sleeves. The linear drive component is fixedly installed between the vehicle plate and the connecting rod, and is used to drive the connecting rod and the lifting sleeve to move up and down; Two sets of lifting units are respectively set at the lower ends of two lifting sleeves. The lifting unit includes a fixed arm and two support arms. The fixed arm is welded and fixed to the side of the lifting sleeve. The two support arms are welded and fixed to both ends of the fixed arm. An adjusting arm is provided at the other end of the support arm. The support arm and the adjusting arm are connected by an adjusting component. Support wheels for supporting the hydraulic cylinder are fixedly installed on the top of both the support arm and the adjusting arm.

2. The multi-point support device for repairing large hydraulic cylinders according to claim 1, characterized in that: A push frame is fixedly installed on the upper surface of the vehicle platform, and multiple wheels are fixedly installed on its bottom.

3. The multi-point support device for repairing large hydraulic cylinders according to claim 1, characterized in that: A counterweight box is placed on the upper surface of the vehicle body.

4. The multi-point support device for repairing large hydraulic cylinders according to claim 1, characterized in that: The linear drive component is a hydraulic rod or an electric cylinder.

5. The multi-point support device for repairing large hydraulic cylinders according to claim 1, characterized in that: Two ribs are welded and fixed between the fixed arm and the lifting sleeve.

6. The multi-point support device for repairing large hydraulic cylinders according to claim 1, characterized in that: One end of the adjusting arm is open, and two threaded holes are provided at its bottom.

7. The multi-point support device for repairing large hydraulic cylinders according to claim 6, characterized in that: The adjustment assembly includes a connecting arm, one end of which is fixedly connected to the support arm, and the other end is slidably disposed in the inner cavity of the adjustment arm. The bottom end of the connecting arm has multiple sets of positioning holes, and the threaded hole and the corresponding positioning hole are provided with the same positioning bolt.

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