Jack movement test board

Abstract

The utility model relates to the technical field of jacks, in particular to a jack movement test board. Comprising a workbench, a horizontal detection mechanism and a testing mechanism, and the testing mechanism comprises a pneumatic tip, a mounting seat, a rotating sleeve, a limiting tip, a moving plate, a placing table, a holding rod, an inserting plate, a moving mechanism and a tensioning mechanism. In the testing process, the position of the pneumatic tip can be adjusted through the multiple sets of adjusting holes formed in the workbench at intervals to change the working distance between the pneumatic tip and the limiting tip, pump core bodies of different lengths can be conveniently tested after being fixed, and therefore the problem that when an existing testing table is used for testing the straightness of a pump core column, the straightness of the pump core column cannot be accurately tested is solved. And most pump core columns with the same length size can be tested only, so that the practicability is poor.

Description

TECHNICAL FIELD

[0001] The utility model relates to jack technical field especially relates to a jack movement testing board. BACKGROUND

[0002] The pump core of the existing horizontal jack is generally integrally cast or forged, and the manufacturing cost is high. The outer cylindrical surface of the circular pump core column is difficult to process. The prior art CN99228340. X discloses a pump core of a horizontal jack, which is composed of a U-shaped connecting block and a circular pump core column. A threaded hole is arranged on one side of the U-shaped connecting block, and a hole is also arranged on the same side. The hole is communicated with the threaded hole. A threaded shoulder is arranged on the circular pump core column, and a hole is arranged on the threaded shoulder. The threaded hole and the threaded shoulder are matched, so that the U-shaped connecting block and the circular pump core column are threadedly connected, and a cross pin is inserted into the hole and the hole. The utility model has the advantages of easy processing and low manufacturing cost.

[0003] In actual use, the pump core column needs to be detected for straightness or roundness before assembly during subsequent jack maintenance, so as to meet the working requirements after assembly. The existing testing table can only test the straightness of pump core columns of the same length and size, and has poor practicability. UTILITY MODEL CONTENTS

[0004] The utility model discloses a jack movement testing board, which aims to solve the problem that the existing testing table can only test the straightness of pump core columns of the same length and size, and has poor practicability.

[0005] To achieve the above-mentioned purpose, the utility model provides a jack movement testing board, which comprises a workbench, a horizontal detection mechanism is arranged on the workbench, and a testing mechanism is further arranged.

[0006] The testing mechanism comprises a pneumatic center, a mounting seat, a rotating sleeve, a limiting center, a moving plate, a placing table, a holding rod, an insertion plate, a moving mechanism and a tensioning mechanism. The pneumatic center is arranged on the left side of the workbench. The mounting seat is fixedly connected with the workbench and located on the right side of the workbench. The rotating sleeve is rotationally connected with the mounting seat and located on the mounting seat. The taper cavity on the left side of the rotating sleeve is matched with the taper mounting part of the limiting center. The pump core body is arranged between the limiting center and the pneumatic center. The moving plate is arranged on the lower side of the pump core body and located on the moving mechanism. The placing table is fixedly connected with the moving plate, and a dial indicator is arranged on the top of the placing table. The holding rod is threadedly connected with the moving plate and located on the top of the front side of the moving plate. The insertion plate is slidably connected with the limiting center and the workbench. The tensioning mechanism is arranged on the side of the limiting center close to the rotating sleeve.

[0007] The symmetrically arranged arc-shaped positioning cavities on the rotating sleeve can cooperate with the arc-shaped limiting part on the limiting tip.

[0008] The leveling mechanism includes a standard platform and a level, with the standard platform positioned on top of the workbench and the level placed on the standard platform.

[0009] The moving mechanism includes a linear guide rail and a slider. The linear guide rail is fixedly connected to the worktable and is symmetrically arranged. The slider is slidably connected to the linear guide rail and fixedly connected to the moving plate.

[0010] The tensioning mechanism includes a pull rod and a limiting ring. The pull rod is threadedly connected to the limiting tip and slidably connected to the rotating sleeve. The limiting ring is slidably mounted on the head of the pull rod near the limiting tip and abuts against the rotating sleeve.

[0011] The testing mechanism also includes a gate-shaped block, which is detachably connected to the workbench and arranged symmetrically.

[0012] This utility model discloses a jack mechanism testing platform. During testing, the platform is first leveled using a horizontal detection mechanism. Then, a standard pump core body is fixed using a limiting center and a pneumatic center, with a stop plate used to prevent rotation of the limiting center. Next, the pointer of a dial indicator is placed against the pump core body and adjusted to rotate. Then, a moving plate is pulled by a gripping rod, moving linearly with the assistance of a moving mechanism. This allows the dial indicator's contact point to slide linearly across the pump core body surface. The dial indicator's pointer movement is then observed. Furthermore, the standard pump core body is removed, and then the pump core body to be tested is installed. Finally, the above operation steps are repeated to test the straightness of the pump core body to be tested and the data is recorded. By comparing the two sets of test data, it can be known whether the straightness of the pump core body to be tested meets the standard. By adjusting the position of the pneumatic tip to change its working distance with the limit tip, it is convenient to fix and test pump core bodies of different lengths. This can solve the problem that the existing test bench can only perform straightness tests on pump core columns of the same length when testing the straightness of the pump core column, which is not very practical. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the jack mechanism test stand according to the first embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the mounting base according to the first embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram of the limiting tip structure of the first embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram of the overall structure of the jack mechanism test stand according to the second embodiment of this utility model.

[0018] In the diagram: 101-Workbench, 102-Pneumatic center, 103-Mounting base, 104-Rotating sleeve, 105-Limiting center, 106-Moving plate, 107-Placement platform, 108-Holding rod, 109-Insertion plate, 110-Pump core body, 111-Standard platform, 112-Level, 113-Linear guide rail, 114-Slider, 115-Pull rod, 116-Limiting ring, 201-Gate block. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Example 1:

[0021] like Figures 1 to 3 As shown, where Figure 1 This is a schematic diagram of the overall structure of the jack mechanism test stand. Figure 2 This is a structural schematic diagram of mounting base 103. Figure 3 This is a structural schematic diagram of the limiting center 105. This utility model provides a jack mechanism testing platform: including a workbench 101, a horizontal detection mechanism, and a testing mechanism. The testing mechanism includes a pneumatic center 102, a mounting base 103, a rotating sleeve 104, a limiting center 105, a moving plate 106, a placement platform 107, a gripping rod 108, an insertion plate 109, a moving mechanism, and a tensioning mechanism. The horizontal detection mechanism includes a standard platform 111 and a level 112. The moving mechanism includes a linear guide rail 113 and a slider 114. The tensioning mechanism includes a pull rod 115 and a limiting ring 116. This solution solves the problem that existing testing platforms, when performing straightness tests on pump core columns, can mostly only test the straightness of pump core columns of the same length, resulting in poor practicality. It can be understood that the aforementioned solution can test the straightness of pump core bodies 110 of different lengths.

[0022] In this embodiment, a level detection mechanism is provided on the workbench 101. The level detection mechanism is used to monitor the level status of the workbench 101 in real time. If the workbench 101 is not in the corresponding level state, it can be adjusted by the machine tool leveling iron provided at the bottom of the workbench 101.

[0023] The pneumatic tip 102 is located on the left side of the worktable 101. The mounting base 103 is fixedly connected to the worktable 101 and located on the right side of the worktable 101. The rotating sleeve 104 is rotatably connected to the mounting base 103 and located on the mounting base 103. The left tapered cavity of the rotating sleeve 104 cooperates with the tapered mounting part of the limiting tip 105. A pump core body 110 is provided between the limiting tip 105 and the pneumatic tip 102. The moving plate 106 is located on the lower side of the pump core body 110 and on the moving mechanism. The platform 107 is fixedly connected to the movable plate 106, and a dial indicator is installed on its top. The gripping rod 108 is threadedly connected to the movable plate 106 and is located on the top front side of the movable plate 106. The insert plate 109 is slidably connected to the limiting center 105 and the worktable 101 respectively. The tensioning mechanism is located on the side of the limiting center 105 near the rotating sleeve 104. The base of the pneumatic center 102 is fixed by multiple T-shaped screws and nuts. The optical axis end of the T-shaped screw slides with the through hole of the worktable 101 to act as a positioning pin structure. Three sets of adjustment holes are spaced apart on the platform 101 to facilitate the adjustment of the position of the pneumatic center 102. The mounting base 103 is fixed by positioning pins and bolts. The rotating sleeve 104 is mounted on the mounting base 103 by a rotating bearing. Center holes are respectively provided on both end faces of the pump core body 110. The moving plate 106 achieves linear movement through the moving mechanism. The bottom end of the placement platform 107 is fixed by countersunk positioning pins and bolts arranged from bottom to top. The top can be used to attach a dial indicator. The bottom threaded end of the gripping rod 108 is directly installed on the thread of the moving plate 106. The installation is achieved within the threaded connection hole. The limiting tip 105 has a flat square portion to facilitate the installation and mating of the insert plate 109. The bottom of the insert plate 109 is symmetrically provided with cylinders, which can slide into the mating hole of the worktable 101. After the insert plate 109 is installed, the limiting tip 105 cannot rotate, so the rotating sleeve 104 does not rotate. At this time, the pump core body 110 only undergoes a straightness test. After removing the insert plate 109, the pump core body 110 can rotate, and the roundness test of the corresponding point can be performed. The tensioning mechanism is used to improve the installation stability of the limiting tip 105.

[0024] The symmetrically arranged arc-shaped positioning cavities on the rotating sleeve 104 can cooperate with the arc-shaped limiting part on the limiting tip 105. This structure is used for installation and fitting.

[0025] Secondly, the standard platform 111 is set on top of the workbench 101; the level 112 is placed on the standard platform 111. The standard platform 111 can directly hold the level 112, which is used to monitor the level of the workbench 101 in real time.

[0026] Then, the linear guide rail 113 is fixedly connected to the worktable 101 and arranged symmetrically; the slider 114 is slidably connected to the linear guide rail 113 and fixedly connected to the moving plate 106. The linear guide rail 113 is fixed by countersunk bolts, and the slider 114 can slide linearly on the linear guide rail 113 and is connected to the moving plate 106 by bolts.

[0027] Finally, the pull rod 115 is threadedly connected to the limiting tip 105 and slidably connected to the rotating sleeve 104; the limiting ring 116 is slidably sleeved on the head of the pull rod 115 near the limiting tip 105 and abuts against the rotating sleeve 104. The limiting tip 105 has a threaded hole for easy installation of the front external thread end of the pull rod 115. The limiting ring 116 is slidably sleeved on the pull rod 115 and, after the pull rod 115 is tightened, is limited by the head of the pull rod 115 and the rotating sleeve 104. The pull rod 115 and the limiting ring 116 prevent the limiting tip 105 from falling off during testing.

[0028] To address the limitation of existing testing platforms, which are mostly limited to testing pump core columns of the same length and thus have poor practicality, this invention addresses the issue of limited applicability. First, the leveling mechanism is used to check if the workbench 101 is level; if not, adjustment is required. Then, the standard pump core body 110 is fixed using the limiting tip 105 and the pneumatic tip 102. The pneumatic tip 102 extends and retracts via a cylinder, while the limiting tip 105 is anti-rotationally secured by the insert plate 109. Next, the pointer of the dial indicator is placed against the pump core body 110 and adjusted until it rotates. Then, the moving plate 106 is moved by the gripping rod 108. The moving plate 106 moves linearly with the assistance of the moving mechanism, allowing the dial indicator's contact point to slide linearly across the surface of the pump core body 110. The dial indicator's pointer movement is observed and recorded. Furthermore, the standard pump core body 110 is removed, and then the pump core body 110 to be tested is installed. Finally, the above operation steps are repeated to test the straightness of the pump core body 110 to be tested and the data is recorded. By comparing the two sets of test data, it can be known whether the straightness of the pump core body 110 to be tested meets the standard. By adjusting the position of the pneumatic tip 102 to change its working distance with the limiting tip 105, it is convenient to fix and test pump core bodies 110 of different lengths. This can solve the problem that existing test benches can only test the straightness of pump core columns of the same length when testing the straightness of pump core columns, which is not very practical.

[0029] Example 2:

[0030] like Figure 4 As shown, where Figure 4 This is a schematic diagram of the overall structure of the jack mechanism testing platform. Based on the first embodiment, this utility model provides a jack mechanism testing platform. The testing mechanism also includes a gate-shaped block 201, which is detachably connected to the workbench 101 and symmetrically arranged.

[0031] In this embodiment, mounting ears with holes are provided on both sides of the gate-shaped block 201 to facilitate its fixing by bolts. The function of the gate-shaped block 201 is to prevent the slider 114 from falling off when it slides to the ends of the linear guide rail 113.

[0032] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A jack mechanism testing platform, comprising a workbench, wherein a horizontal detection mechanism is provided on the workbench, characterized in that: It also includes testing organizations; The testing mechanism includes a pneumatic center, a mounting base, a rotating sleeve, a limiting center, a movable plate, a placement platform, a gripping rod, an insert plate, a moving mechanism, and a tensioning mechanism. The pneumatic center is located on the left side of the workbench. The mounting base is fixedly connected to the workbench and located on the right side of the workbench. The rotating sleeve is rotatably connected to the mounting base and located on the mounting base. The left tapered cavity of the rotating sleeve mates with the tapered mounting part of the limiting center. A pump core body is disposed between the limiting center and the pneumatic center. The movable plate is disposed on the lower side of the pump core body and located on the moving mechanism. The placement platform is fixedly connected to the movable plate, and a dial indicator is mounted on its top. The gripping rod is threadedly connected to the movable plate and located on the top front side of the movable plate. The insert plate is slidably connected to the limiting center and the workbench respectively. The tensioning mechanism is disposed on the side of the limiting center near the rotating sleeve. The symmetrically arranged arc-shaped positioning cavities on the rotating sleeve can cooperate with the arc-shaped limiting part on the limiting tip.

2. The jack mechanism testing platform as described in claim 1, characterized in that: The leveling mechanism includes a standard platform and a level, with the standard platform positioned on top of the workbench and the level placed on the standard platform.

3. The jack mechanism testing platform as described in claim 1, characterized in that: The moving mechanism includes a linear guide rail and a slider. The linear guide rail is fixedly connected to the worktable and is symmetrically arranged. The slider is slidably connected to the linear guide rail and fixedly connected to the moving plate.

4. The jack mechanism testing platform as described in claim 1, characterized in that: The tensioning mechanism includes a pull rod and a limiting ring. The pull rod is threadedly connected to the limiting tip and slidably connected to the rotating sleeve. The limiting ring is slidably sleeved on the head of the pull rod near the limiting tip and abuts against the rotating sleeve.

5. The jack mechanism testing stand as described in claim 1, characterized in that... : The testing mechanism also includes a gate-shaped block, which is detachably connected to the workbench and arranged symmetrically.

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