Hydraulic cylinder test frame

Abstract

The utility model discloses a hydraulic cylinder test frame, which comprises a test frame, the test frame comprises side arms which are oppositely arranged, two ends of the two side arms are connected through cross arms, one cross arm is provided with a test hydraulic cylinder, the other cross arm is detachably provided with a first fixing piece, the first fixing piece comprises a fixing sleeve used for fixing a hydraulic cylinder to be tested, and the fixing sleeve is provided with a clamping groove used for clamping the hydraulic cylinder to be tested. An oil pipe penetrating notch is formed in the fixing sleeve, a first supporting arm used for supporting a testing hydraulic cylinder and a second supporting arm used for supporting a hydraulic cylinder to be tested are further arranged between the two side arms, and a fixing clamping sleeve matched with the testing hydraulic cylinder is arranged on the first supporting arm. Second fixing pieces used for clamping the to-be-tested hydraulic cylinder are installed on the second supporting arm and located on the two sides of the to-be-tested hydraulic cylinder in a sliding mode. Through the arrangement of the detachable first fixing piece, the first fixing pieces of different specifications can be rotated according to the size of the to-be-tested hydraulic cylinder, then the front end of the to-be-tested hydraulic cylinder is fixed through the cooperation of the second fixing piece, and it is guaranteed that the to-be-tested hydraulic cylinder is stably positioned in the testing process.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinder detection, in particular to a hydraulic cylinder test stand. Background Art

[0002] The hydraulic cylinder includes a cylinder body and a piston rod. The piston rod is slidably installed in the cylinder body. The extension and retraction of the piston rod are achieved through the oil on both sides of the piston rod to drive the equipment connected to the piston rod. It has the advantages of simple structure, reliable operation and smooth movement, and has therefore been widely used in different mechanical systems.

[0003] In the leakage test of the hydraulic cylinder, it needs to be stably clamped on the test frame. The existing test fixtures have relatively fixed sizes and are difficult to adapt to the testing of hydraulic cylinders of different sizes. In addition, unstable positioning is prone to occur during the test, which affects the test results. Utility Model Content

[0004] The utility model aims to provide a hydraulic cylinder test stand to solve the problem that the existing test stand has relatively fixed test fixture sizes, is difficult to adapt to hydraulic cylinder tests of different sizes, and is prone to unstable positioning during testing.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A hydraulic cylinder test frame comprises a test frame, wherein the test frame comprises side arms arranged opposite to each other, the two ends of the two side arms are connected by a cross arm, a test hydraulic cylinder is arranged on one of the cross arms, and a first fixing member is detachably installed on the other cross arm, the first fixing member comprises a fixing sleeve for fixing the hydraulic cylinder to be tested, the fixing sleeve is provided with a notch for passing an oil pipe, a first supporting arm for supporting the test hydraulic cylinder and a second supporting arm for supporting the hydraulic cylinder to be tested are also arranged between the two side arms, a fixing clamping sleeve adapted to the test hydraulic cylinder is arranged on the first supporting arm, and a second fixing member for clamping the hydraulic cylinder to be tested is slidably installed on the second supporting arm at both sides of the hydraulic cylinder to be tested.

[0007] Furthermore, a connecting plate is provided on the bottom wall of the fixing sleeve, a folding plate adapted to the cross arm is provided on the upper end of the connecting plate, a fixing hole is opened on the horizontal portion of the folding plate, and an insert rod adapted to the fixing hole is provided on the cross arm.

[0008] Furthermore, the second fixing member includes a sliding plate, a sliding block is provided at the lower end of the sliding plate, a limiting sliding groove adapted to the sliding block is provided on the second supporting arm, a driving member for driving the sliding plate to move on the second supporting arm is provided on the side of the sliding plate away from the driving member, and an arc-shaped clamping plate adapted to the hydraulic cylinder to be tested is installed on the side of the sliding plate away from the driving member.

[0009] Furthermore, the driving member includes a driving screw rod installed on the side arm, one end of the driving screw rod is rotatably connected to the sliding plate, and the other end of the driving screw rod is provided with a driving hand wheel.

[0010] The utility model has the following advantages:

[0011] 1. By setting up a detachable first fixing member, first fixing members of different specifications can be rotated according to the size of the hydraulic cylinder to be tested, and then the second fixing member is used to fix the front end of the hydraulic cylinder to be tested, so as to ensure the stable positioning of the hydraulic cylinder to be tested during the test.

[0012] 2. Use the fixing sleeve to fix it on the hydraulic cylinder to be tested, and install it on the cross arm through the folding plate, and further insert it into the fixing hole through the plug rod to achieve a stable connection between the first fixing part and the cross arm. The operation is simple and convenient, and the stability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view schematic diagram of the utility model.

[0014] Figure 2 It is a schematic structural diagram of the first fixing member.

[0015] In the figure, 1-test frame, 101-side arm, 102 cross arm, 2-test hydraulic cylinder, 3-hydraulic cylinder to be tested, 4-fixing sleeve, 5-oil pipe passing gap, 6-first support arm, 7-second support arm, 8-fixing jacket, 9-connecting plate, 10-folding plate, 11-fixing hole, 12-sliding plate, 13-limiting slide groove, 14-arc clamping plate, 15-driving screw, 16-driving hand wheel, 17-insertion rod. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0018] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] refer to Figure 1 , 2, an embodiment of the utility model is:

[0023] A hydraulic cylinder test frame comprises a test frame 1, wherein the test frame comprises side arms 101 arranged opposite to each other, the two ends of the two side arms 101 being connected by a cross arm 102, a test hydraulic cylinder 2 being arranged on one of the cross arms 102, a first fixing member being detachably mounted on the other cross arm 102, the first fixing member comprising a fixing sleeve 4 for fixing a hydraulic cylinder 3 to be tested, the fixing sleeve 4 being provided with an oil pipe passing notch 5, a first supporting arm 6 for supporting the test hydraulic cylinder 2 and a second supporting arm 7 for supporting the hydraulic cylinder 4 to be tested being further arranged between the two side arms 101, a fixing clamping sleeve 8 adapted to the test hydraulic cylinder being arranged on the first supporting arm 6, and a second fixing member for clamping the hydraulic cylinder 3 to be tested being slidably mounted on the second supporting arm 7 on both sides of the hydraulic cylinder 3 to be tested.

[0024] Specifically, the bottom wall of the fixing sleeve 4 is provided with a connecting plate 9, the upper end of the connecting plate 9 is provided with a folding plate 10 adapted to the cross arm 102, a fixing hole 11 is opened on the horizontal part of the folding plate 102, and the cross arm 102 is provided with an insert rod 17 adapted to the fixing hole.

[0025] In a specific implementation, the folding plate 10 and the connecting plate 9 are formed in one piece.

[0026] An oil pipe 12 adapted to the hydraulic cylinder to be tested is provided on the outside of the side arm 101. In order to prevent the oil pipe from affecting the installation of the hydraulic cylinder, a rotating connecting sleeve is installed on the vertical section of the oil pipe 12 located on the outside of the side arm 101. When installing the hydraulic cylinder, the horizontal section of the oil pipe 12 can be rotated to the outside of the test frame 1. After the hydraulic cylinder is installed, the horizontal section of the oil pipe 12 can be rotated again to the top of the test frame 1, and then the oil pipe and the hydraulic cylinder are connected.

[0027] By setting up a detachable first fixing piece, first fixing pieces of different specifications can be rotated according to the size of the hydraulic cylinder 3 to be tested, and fixed on the hydraulic cylinder 3 to be tested by using the fixing sleeve 4, and clamped on the cross arm 102 through the folding plate 10, and further inserted into the fixing hole 11 through the insertion rod, so as to realize the stable connection between the first fixing piece and the cross arm, and then cooperate with the second fixing piece to fix the front end of the hydraulic cylinder to be tested, so as to ensure the stable positioning of the hydraulic cylinder to be tested during the test.

[0028] In this embodiment, the second fixing member includes a sliding plate 12, a sliding block is provided at the lower end of the sliding plate 12, a limiting sliding groove 13 adapted to the sliding block is provided on the second supporting arm 7, a driving member for driving the sliding plate 12 to move on the second supporting arm 7 is provided on the side arm 101, and an arc-shaped clamping plate 14 adapted to the hydraulic cylinder 3 to be tested is installed on the side of the sliding plate 12 away from the driving member.

[0029] The driving member includes a driving screw 15 installed on the side arm 101 , one end of the driving screw 15 is rotatably connected to the sliding plate 12 , and the other end of the driving screw 15 is provided with a driving hand wheel 16 .

[0030] The two sliding plates 12 can be moved relatively away from or relatively close to each other by driving the screw rod 15. The structure is simple and easy to implement. When the two sliding plates 12 are relatively close to each other, the arc-shaped clamping plate 14 on the sliding plate 12 can clamp and fix the front end of the hydraulic cylinder 3 to be tested.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic cylinder test stand, characterized in that: The test frame comprises side arms arranged opposite to each other, two ends of the two side arms are connected by a cross arm, a test hydraulic cylinder is arranged on one of the cross arms, a first fixing part is detachably installed on the other cross arm, the first fixing part comprises a fixing sleeve for fixing the hydraulic cylinder to be tested, a notch for passing an oil pipe is opened on the fixing sleeve, a first supporting arm for supporting the test hydraulic cylinder and a second supporting arm for supporting the hydraulic cylinder to be tested are also arranged between the two side arms, a fixing clamping sleeve adapted to the test hydraulic cylinder is arranged on the first supporting arm, and a second fixing part for clamping the hydraulic cylinder to be tested is slidably installed on the second supporting arm at both sides of the hydraulic cylinder to be tested.

2. A hydraulic cylinder test stand according to claim 1, characterized in that: The bottom wall of the fixing sleeve is provided with a connecting plate, the upper end of the connecting plate is provided with a folding plate adapted to the cross arm, a fixing hole is opened on the horizontal part of the folding plate, and the cross arm is provided with an inserting rod adapted to the fixing hole.

3. The hydraulic cylinder test stand according to claim 1, characterized in that: The second fixing member includes a sliding plate, a sliding block is provided at the lower end of the sliding plate, a limiting sliding groove adapted to the sliding block is provided on the second supporting arm, a driving member for driving the sliding plate to move on the second supporting arm is provided on the side of the sliding plate away from the driving member, and an arc-shaped clamping plate adapted to the hydraulic cylinder to be tested is installed on the side of the sliding plate away from the driving member.

4. A hydraulic cylinder test stand according to claim 3, characterized in that: The driving member comprises a driving screw rod which is installed on the side arm, one end of the driving screw rod is rotatably connected to the sliding plate, and the other end of the driving screw rod is provided with a driving hand wheel.

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