Autonomous lifting storage and no-load test rack for hydraulic oil cylinder

Abstract

An underframe is mounted in front of a left stand column, a right stand column and a lower horizontal rod, an inclined supporting beam is obliquely mounted between the underframe and the upper horizontal rod, an oil cylinder is placed on the inclined supporting beam, penetrating rods are mounted at the two ends of the upper horizontal rod, and the penetrating rods are connected with the left stand column, the right stand column and the lower horizontal rod. Hand wheels, ratchet mechanisms, lifting belts and lifting hooks are installed at the rear ends of the left stand column and the right stand column, the hand wheels are in meshed connection with the ratchet mechanisms through gears, one ends of the lifting belts are connected to the ratchet mechanisms, the other ends of the lifting belts are connected with the lifting hooks, pressing wheels and conveying wheels are installed on the penetrating rods through rotating shafts respectively, and the lifting belts penetrate through the pressing wheels, the conveying wheels and the lifting hooks to lift oil cylinders. The three-dimensional mode changes conventional horizontal storage, the problem that the occupied area of the oil cylinder is large is solved, through the vertical storage mode, the occupied area is reduced, the storage efficiency is improved, and leakage of the oil cylinder and environmental pollution can be effectively avoided; therefore, a test result can be more accurately seen when the oil cylinder is subjected to a no-load test on the storage rack.

Description

Technical Field

[0001] The invention belongs to the technical field of transmission line tower construction, and in particular relates to a self-lifting, storage and no-load test frame for hydraulic cylinders. Background Art

[0002] The development strategy of State Grid Corporation of China is to build a strong and smart grid. As an important physical channel for power transmission, transmission lines have become the basic guarantee for building a strong and smart grid, and they also play an important role in the composition of smart grids. With the development of transmission grid construction, the construction of large-scale steel structure projects such as power towers has increased.

[0003] In the construction process of large steel structure projects such as power towers, floor-standing double rocker arm and floor-standing double flat arm hoisting equipment are commonly used. The so-called floor-standing arm tower is assembled from several standard sections and upper and lower supports. The two flat arms and rocker arms are symmetrically installed on the upper support of the tower body, and the whole adopts a hydraulic cylinder lifting type. The hydraulic cylinder needs to be inspected regularly during storage and pressure test before leaving the warehouse. The following problems mainly exist during storage:

[0004] (1) The oil cylinder needs to be placed flat during storage, which takes up a large area and is difficult to check the appearance;

[0005] (2) The oil cylinder is not easy to transport or load after being placed, and it is easy to roll and leak oil, polluting the ground;

[0006] (3) During the test, the oil cylinder is placed on the ground and it is difficult to observe the test conditions.

[0007] Therefore, the present invention develops a hydraulic cylinder self-lifting storage and testing frame. Summary of the invention

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a hydraulic cylinder self-lifting storage and no-load test rack to improve the storage efficiency of the cylinders and solve the problems of easy contamination of the cylinders, large space occupation and inconvenience in testing.

[0009] The present invention solves the technical problem by the following technical solutions:

[0010] A hydraulic cylinder autonomous lifting storage and no-load test frame comprises a left column, a right column and an upper horizontal rod and a lower horizontal rod connecting the left column and the right column, a base frame is installed in front of the left column, the right column and the lower horizontal rod, an inclined support beam is obliquely installed between the base frame and the upper horizontal rod, an oil cylinder is placed on the inclined support beam, both ends of the upper horizontal rod are installed with a dressing rod, the rear ends of the left column and the right column are installed with a hand wheel, a ratchet mechanism, a sling and a hook, the hand wheel is meshed and connected with the ratchet mechanism through a gear, one end of the sling is connected to the ratchet mechanism, and the other end is connected to the hook, a pressure wheel and a transmission wheel are respectively installed on the dressing rod through a rotating shaft, the sling passes through the pressure wheel and the transmission wheel and is driven by the ratchet mechanism to be lifted and lowered, and the hook is hoisted by the lifting ears on both sides of the oil cylinder.

[0011] Moreover, a plurality of rotating buckles are arranged at intervals on both sides of the oblique support beam, and the rotating buckles rotate 90 degrees along the oblique support beam, and a limited stopper is installed at the lower end of the rotating buckle.

[0012] Furthermore, a reinforcing beam is installed between the oblique supporting beam and the base frame.

[0013] Moreover, a support leg is installed at the front end of the base frame, the bottom end of the support leg is kept level with the bottom surface of the left column and the right column, and the bottom ends of the support leg, the left column and the right column are all provided with anti-slip pads.

[0014] Moreover, the left column, the right column, the upper horizontal rod, the lower horizontal rod, and the oblique support beam are all connected by butt-jointing channel steels.

[0015] The advantages and beneficial effects of the present invention are:

[0016] 1. The three-dimensional form of the present invention changes the conventional horizontal storage, avoids the problem of large floor space occupied by the oil cylinder, and reduces the floor space and improves storage efficiency through vertical storage.

[0017] 2. The present invention can directly place the oil cylinder on the frame by driving a hand-cranked wrench through the lifting mechanism, thereby improving the work efficiency in on-site installation and inspection and testing.

[0018] 3. The storage method of the present invention improves storage management efficiency and can effectively avoid leakage of the oil cylinder and environmental pollution.

[0019] 4. The present invention can be designed according to the oil cylinders of different sizes of double rocker arms and double parallel arms, with low cost and good promotion value and economy.

[0020] 5. The present invention makes it possible to more accurately see the test results of no-load tests on storage racks. In previous ground tests, the test results on the lower side of the oil cylinder were not easy to observe. Whether there is leakage, whether the no-load formation meets the requirements, whether the working pressure of the pressure valve is accurate, etc. can be effectively observed during the experiment of this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a rear view of the present invention;

[0023] Figure 3 is a side view of the present invention;

[0024] Figure 4 This is a physical diagram of the present invention. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below through specific examples. The following examples are only illustrative and not restrictive, and the protection scope of the present invention cannot be limited thereto.

[0026] A hydraulic cylinder autonomous lifting storage and no-load test frame, the innovation of which lies in: comprising a left column, a right column and an upper horizontal rod 7 and a lower horizontal rod 15 connecting the left column 1 and the right column, a base frame 3 is installed in front of the left column, the right column and the lower horizontal rod, an inclined support beam is obliquely installed between the base frame and the upper horizontal rod, a cylinder 5 is placed on the inclined support beam, both ends of the upper horizontal rod are installed with a dressing rod 8, the rear ends of the left column and the right column are installed with a hand wheel 9, a ratchet mechanism 12, a sling and a hook 6, the hand wheel is meshed and connected with the ratchet mechanism through a gear, one end of the sling is connected to the ratchet mechanism, and the other end is connected to the hook, a pressure wheel 10 and a transmission wheel 11 are respectively installed on the dressing rod through a rotating shaft, the sling passes through the pressure wheel and the transmission wheel and is driven by the ratchet mechanism to lift and lower, and the hook is used to sling the ears on both sides of the cylinder.

[0027] A number of rotating buckles 13 are arranged at intervals on both sides of the oblique support beam. The rotating buckles rotate 90° along the oblique support beam to form a cylinder placement space between the rotating buckles. A limit stopper 14 is installed at the lower end of the rotating buckle. When the rotating buckle rotates to 90° with the oblique support beam, the cylinder is placed in the cylinder placement space. At the same time, the limit stopper supports and limits the cylinder and the rotating buckle, preventing the displacement of the cylinder from affecting the test.

[0028] A reinforcing beam 16 is installed between the oblique support beam and the base frame to strengthen the support and ensure the firmness of the connection.

[0029] A support leg 4 is installed at the front end of the base frame, and the bottom end of the support leg is kept level with the bottom surface of the left column and the right column. The bottom ends of the support leg, the left column and the right column are all provided with anti-slip foot pads 2 to ensure the stability of the test frame and the firm connection with the ground, and to ensure the safety and stability of the cylinder storage and no-load test.

[0030] The left column, the right column, the upper horizontal rod, the lower horizontal rod, and the oblique support beam are all connected by butt-jointing channel steels, and the components can be disassembled and assembled according to the size of the oil cylinder to meet different specification requirements.

[0031] The working principle of the present invention is:

[0032] When in use, the hand wheel is turned to make the ratchet mechanism drive the sling to drive the hook to move forward. When the hook contacts the oil cylinder on the ground, the lifting ears on both sides of the oil cylinder are hooked to lift the oil cylinder. Then the hand wheel is turned in the opposite direction to drive the oil cylinder to rise. After the oil cylinder reaches the oil cylinder placement space at the uppermost end of the inclined support beam, the rotating buckle is manually turned to 90 degrees with the inclined support beam. The rotating buckle completes the support of the oil cylinder and realizes the storage of the oil cylinder. The hand wheel is continued to be turned to complete the lifting and storage of the subsequent oil cylinders in sequence.

[0033] At the same time, after the oil cylinder is extended without load, it is easier to observe and the test results can be accurately seen.

[0034] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A hydraulic cylinder self-lifting storage and no-load test stand, characterized by: It includes a left column, a right column, and an upper horizontal rod and a lower horizontal rod connecting the left column and the right column, a base frame is installed in front of the left column, the right column and the lower horizontal rod, an inclined support beam is obliquely installed between the base frame and the upper horizontal rod, an oil cylinder is placed on the inclined support beam, and wearing rods are installed at both ends of the upper horizontal rod, and hand wheels, ratchet mechanisms, slings and hooks are installed at the rear ends of the left column and the right column, the hand wheels are meshed and connected with the ratchet mechanism through gears, one end of the sling is connected to the ratchet mechanism, and the other end is connected to the hook, a pressure wheel and a transmission wheel are respectively installed on the wearing rod through a rotating shaft, the sling passes through the pressure wheel and the transmission wheel and is driven by the ratchet mechanism to be lifted and lowered, and the hooks are hoisted by the ears on both sides of the oil cylinder.

2. The self-lifting storage and no-load test stand for hydraulic cylinders according to claim 1 is characterized by: A plurality of rotating buckles are arranged at intervals on both sides of the oblique support beam. The rotating buckles rotate 90 degrees along the oblique support beam, and a limited stopper is installed at the lower end of the rotating buckle.

3. The hydraulic cylinder self-lifting storage and no-load test stand according to claim 1 is characterized by: A reinforcement beam is installed between the oblique support beam and the base frame.

4. The self-lifting storage and no-load test stand for hydraulic cylinders according to claim 1 is characterized by: A support leg is installed at the front end of the base frame, and the bottom end of the support leg is kept level with the bottom surface of the left column and the right column. The bottom ends of the support leg, the left column and the right column are all provided with anti-slip pads.

5. The hydraulic cylinder self-lifting storage and no-load test stand according to claim 1 is characterized by: The left column, the right column, the upper horizontal rod, the lower horizontal rod and the oblique support beam are all connected by butt-jointing of channel steels.

Images