Glyd ring friction force measuring equipment

Abstract

The utility model relates to the technical field of Glyd rings, and discloses Glyd ring friction force measuring equipment which comprises a force measuring machine, a manual control rocking handle is installed on the front side of the force measuring machine close to the bottom, a loading disc is fixedly installed on the front side of the force measuring machine close to the bottom, and a fixing mechanism is arranged in an inner cavity of the loading disc. A valve sleeve is arranged at the top of the loading disc, an inner cavity of the valve sleeve is in sliding connection with a valve element, a Glyd ring is arranged at the position, close to the top, of the inner cavity of the valve sleeve, and the driving bevel gear can rotate under driving of the manual control rocking handle and transmission of the transmission rod. Under the connection of a driven bevel gear, a worm, a worm gear, a second threaded rod, a threaded sleeve and a special-shaped rod, a pressure plate can move downwards, the Glyd ring is rapidly detected, the detection efficiency is improved, two fixing rings are arranged to fix a valve sleeve, the situation that the valve sleeve inclines in the detection process and influences the Glyd ring friction force detection value can be avoided, and the detection accuracy is improved. And the measurement accuracy of the Glyd ring friction force value is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of Gleitrings, in particular to a Gleitring friction force measuring device. Background Technique

[0002] A Gleitring is composed of a rubber O-ring and a polytetrafluoroethylene ring. The O-ring applies force, and the Gleitring is a double-acting piston seal. It has low friction, no creep, small starting force, and high pressure resistance. It can be divided into hole-use Gleitrings and shaft-use Gleitrings.

[0003] When there is a Gleitring seal between the valve sleeve and the inner hole of the valve core in a hydraulic valve, the frictional force generated by the relative movement between the Gleitring and the valve core will affect the movement time and working condition of the valve core to a certain extent. Therefore, the smaller the frictional force between the Gleitring and the valve core, the more beneficial it is to the movement of the valve core. The existing devices cannot quickly detect the frictional force of the Gleitring, thereby reducing the detection efficiency of the Gleitring frictional force.

[0004] Therefore, we propose a Gleitring friction force measuring device to solve the problems mentioned above. Content of the Utility Model

[0005] The purpose of the utility model is to provide a Gleitring friction force measuring device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A Gleitring friction force measuring device includes a dynamometer. A manual control crank is installed near the bottom of the front side of the dynamometer. A loading plate is fixedly installed near the bottom of the front side of the dynamometer. A fixing mechanism is arranged in the inner cavity of the loading plate. A valve sleeve is arranged on the top of the loading plate. A valve core is slidably connected in the inner cavity of the valve sleeve. A Gleitring is arranged near the top of the inner cavity of the valve sleeve. A transmission rod is fixedly installed at the rear side of the manual control crank. The rear end of the transmission rod movably penetrates through the front side of the inner cavity of the dynamometer and is fixedly installed with a driving bevel gear. A driven bevel gear is meshed with one side of the driving bevel gear. A worm is fixedly installed at the center of one side of the driven bevel gear. A worm gear is meshed with the front side near one end of the second threaded rod. A second threaded rod penetrates through the center of the top of the worm gear. The two ends of the second threaded rod are respectively rotatably connected to the top and bottom of the inner cavity of the dynamometer. Threaded sleeves are all threadedly connected to the outer periphery of the second threaded rod. A special-shaped rod is fixedly installed on the front side of the threaded sleeve. A rectangular opening is opened near one side of the front side of the dynamometer. The end of the special-shaped rod penetrates through the inner cavity of the rectangular opening and is fixedly installed with a pressing plate.

[0007] Preferably, a limiting block is fixedly installed on the rear side of the threaded sleeve. A limiting rod movably penetrates through the top of the limiting block, and the top end of the limiting rod is fixedly connected to the inner cavity of the dynamometer.

[0008] Preferably, the fixing mechanism includes a movable shaft rotatably connected to the middle position at the rear side of the inner cavity of the loading disk and a rotating toothed roller fixedly installed at the front end of the movable shaft. A first L-shaped rack plate and a second L-shaped rack plate are respectively engaged at the top and bottom of the rotating toothed roller. A first threaded rod is fixedly installed at a position close to the middle on one side of the second L-shaped rack plate. A threaded tube is threadedly connected to the outer periphery of the first threaded rod. One end of the threaded tube movably penetrates through the inner cavity of the loading disk. Connecting columns are fixedly installed at the top of the first L-shaped rack plate and the second L-shaped rack plate close to the sides away from each other. An opening is formed at the middle position of the top of the loading disk, and the top ends of the connecting columns penetrate through the inner cavity of the rectangular opening and are fixedly connected with fixing rings.

[0009] Preferably, a hand wheel is fixedly installed at one end of the threaded tube.

[0010] Preferably, limiting telescopic rods are fixedly installed at the top and bottom of the sides away from each other of the first L-shaped rack plate and the second L-shaped rack plate, and the end parts of the limiting telescopic rods are respectively fixedly connected with the inner cavity side walls of the loading disk.

[0011] Preferably, an installation opening is formed at a position close to one side on the front side of the force measuring machine, and a digital display is installed in the inner cavity of the installation opening.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] Driven by manually controlling the crank and transmitted by the transmission rod, the driving bevel gear can rotate. Connected by the driven bevel gear, the worm, the worm wheel, the second threaded rod, the threaded sleeve and the special-shaped rod, the pressing disk can move downward to quickly detect the O-ring, improving the detection efficiency. By arranging two fixing rings to fix the valve sleeve, it is possible to avoid tilting during the detection process, affecting the numerical value of the O-ring friction force detection, and improving the accuracy of the O-ring friction force numerical measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is the partial sectional three-dimensional structural schematic diagram of the present utility model

[0016] Figure 3 is the sectional view of the valve sleeve and the valve core of the present utility model;

[0017] Figure 4 is the three-dimensional structural schematic diagram of the loading disk and the fixing ring of the present utility model;

[0018] Figure 5 is the side sectional three-dimensional structural schematic diagram of the loading disk and the fixing ring of the present utility model;

[0019] Figure 6 This is a schematic perspective view of the loading tray of the present utility model in a top-down sectional view.

[0020] In the figure: 1, force measuring machine; 2, manual control crank; 3, loading tray; 4, pressure plate; 5, valve sleeve; 6, valve core; 7, Gleason ring; 8, movable shaft; 9, rotating tooth roller; 10, first L-shaped rack plate; 11, second L-shaped rack plate; 12, first threaded rod; 13, threaded tube; 14, handwheel; 15, limit telescopic rod; 16, connecting column; 17, fixed ring; 18, transmission rod; 19, driving bevel gear; 20, driven bevel gear; 21, worm; 22, worm gear; 23, second threaded rod; 24, threaded sleeve; 25, special-shaped rod; 26, limit block; 27, limit rod. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1: Please refer to Figure 1-6 , a Gleason ring friction measurement device, including a force measuring machine 1, a manual control crank 2 is installed near the bottom on the front side of the force measuring machine 1, a loading tray 3 is fixedly installed near the bottom on the front side of the force measuring machine 1, a fixing mechanism is arranged in the inner cavity of the loading tray 3, a valve sleeve 5 is arranged on the top of the loading tray 3, a valve core 6 is slidably connected in the inner cavity of the valve sleeve 5, a Gleason ring 7 is arranged near the top in the inner cavity of the valve sleeve 5, a transmission rod 18 is fixedly installed on the rear side of the manual control crank 2, the rear end of the transmission rod 18 movably penetrates through the front side of the inner cavity of the force measuring machine 1 and is fixedly installed with a driving bevel gear 19, a driven bevel gear 20 is meshed on one side of the driving bevel gear 19, a worm 21 is fixedly installed at the center of the circle on one side of the driven bevel gear 20, a worm gear 22 is meshed near one end on the front side of the second threaded rod 23, the second threaded rod 23 penetrates through the center of the circle on the top of the worm gear 22, the two ends of the second threaded rod 23 are respectively rotatably connected to the top and bottom of the inner cavity of the force measuring machine 1, threaded sleeves 24 are threadedly connected to the outer periphery of the second threaded rod 23, a special-shaped rod 25 is fixedly installed on the front side of the threaded sleeve 24, a rectangular opening is formed near one side on the front side of the force measuring machine 1, and the end of the special-shaped rod 25 penetrates through the inner cavity of the rectangular opening and is fixedly installed with a pressure plate 4. Under the connection of the driven bevel gear 20, worm 21, worm gear 22, second threaded rod 23, threaded sleeve 24 and special-shaped rod 25, the pressure plate 4 can be moved downward to quickly detect the Gleason ring and improve its detection efficiency.

[0023] A limiting block 26 is fixedly installed at the rear side of the threaded sleeve 24. A limiting rod 27 is movably penetrated through the top of the limiting block 26, and the top end of the limiting rod 27 is fixedly connected to the inner cavity of the force measuring machine 1. By providing the limiting block 26 and the limiting rod 27, the threaded sleeve 24 can move stably.

[0024] An installation port is provided at a position near one side of the front side of the force measuring machine 1, and a digital display is installed in the inner cavity of the installation port.

[0025] Embodiment 2: This embodiment is an improvement made on the basis of Embodiment 1. Specifically, please refer to Figure 4 、 Figure 5 and Figure 6 The fixing mechanism includes a movable shaft 8 rotatably connected to the middle position at the rear side of the inner cavity of the loading disk 3 and a rotating tooth roller 9 fixedly installed at the front end of the movable shaft 8. A first L-shaped rack plate 10 and a second L-shaped rack plate 11 are respectively engaged at the top and bottom of the rotating tooth roller 9. A first threaded rod 12 is fixedly installed at a position near the middle of one side of the second L-shaped rack plate 11. A threaded tube 13 is threadedly connected to the outer periphery of the first threaded rod 12. One end of the threaded tube 13 movably penetrates through the inner cavity of the loading disk 3. Connecting columns 16 are fixedly installed at the top of the first L-shaped rack plate 10 and the second L-shaped rack plate 11 near the sides away from each other. An opening is provided at the middle position of the top of the loading disk 3, and the top ends of the connecting columns 16 penetrate through the inner cavity of the rectangular opening and are fixedly connected to fixing rings 17. By providing two fixing rings 17 to fix the valve sleeve 5, it is possible to avoid tilting during the detection process, affecting the value of the grease ring friction force detection, and improving the accuracy of the grease ring friction force value measurement.

[0026] A hand wheel 14 is fixedly installed at one end of the threaded tube 13. By providing the hand wheel 14, the threaded tube 13 can be driven.

[0027] Limit telescopic rods 15 are fixedly installed at the top and bottom of the sides away from each other of the first L-shaped rack plate 10 and the second L-shaped rack plate 11, and the end parts of the limit telescopic rods 15 are respectively fixedly connected to the side walls of the inner cavity of the loading disk 3. By providing the limit telescopic rods 15, the first L-shaped rack plate 10 and the second L-shaped rack plate 11 are limited when they move.

[0028] Working principle: When the present utility model is in use, place the valve sleeve 5 on the top of the loading tray 3. At this time, rotate the rocker 14. The power output shaft of the rocker 14 rotates to drive the threaded tube 13 fixed at the end of the power output shaft of the rocker 14 to rotate. As a result, the first threaded rod 12 threadedly connected to the inner cavity of the threaded tube 13 can move to the right, and then the rotating tooth roller 9 can rotate, so that the first L-shaped rack plate 10 engaged with it can move to the left. Under the connection of the connecting column 16 fixed on the second L-shaped rack plate 11 and the first L-shaped rack plate 10, the adjacent fixing rings 17 can move towards the opposite side, and then the valve sleeve 5 can be fixedly connected, thereby avoiding tilting during the detection process, affecting the value of the friction force detection of the O-ring, and improving the accuracy of measuring the friction force value of the O-ring. Rotate the manual control crank 2. Under the transmission of the transmission rod 18, the driving bevel gear 19 can rotate. Under the connection of the driven bevel gear 20, the worm 21, the worm gear 22, the second threaded rod 23, the threaded sleeve 24 and the special-shaped rod 25, the pressure plate 4 can move downward. When the pressure plate 4 approaches the top of the valve core 6, slowly rotate the manual control crank 2 to make the valve core 6 slowly move downward, and at the same time read the load value on the digital display. At this time, the load value is the friction force value between the surface of the valve core 6 and the contact surface of the shaft O-ring 7.

[0029] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A Gleim ring friction measurement device, comprising a force measuring machine (1), characterized in that: A manual control crank (2) is installed near the bottom of the front side of the force measuring machine (1). A loading plate (3) is fixedly installed near the bottom of the front side of the force measuring machine (1). A fixing mechanism is arranged in the inner cavity of the loading plate (3). A valve sleeve (5) is arranged on the top of the loading plate (3). A valve core (6) is slidably connected in the inner cavity of the valve sleeve (5). A Gleason ring (7) is arranged near the top of the inner cavity of the valve sleeve (5). A transmission rod (18) is fixedly installed at the rear side of the manual control crank (2). The rear end of the transmission rod (18) movably penetrates through the front side of the inner cavity of the force measuring machine (1) and is fixedly installed with a driving bevel gear (19). A driven bevel gear (20) is engaged on one side of the driving bevel gear (19). A worm (21) is fixedly installed at the center of one side of the driven bevel gear (20). A worm gear (22) is engaged near one end of the front side of the second threaded rod (23). A second threaded rod (23) penetrates through the center of the top of the worm gear (22). The two ends of the second threaded rod (23) are respectively rotatably connected to the top and bottom of the inner cavity of the force measuring machine (1). Threaded sleeves (24) are all threadedly connected to the outer periphery of the second threaded rod (23). A special-shaped rod (25) is fixedly installed on the front side of the threaded sleeve (24). A rectangular opening is formed near one side of the front side of the force measuring machine (1), and the end of the special-shaped rod (25) penetrates through the inner cavity of the rectangular opening and is fixedly installed with a pressing plate (4).

2. The Gleason ring friction measurement device according to claim 1, characterized in that: A limiting block (26) is fixedly installed on the rear side of the threaded sleeve (24). A limiting rod (27) movably penetrates through the top of the limiting block (26), and the top end of the limiting rod (27) is fixedly connected to the inner cavity of the force measuring machine (1).

3. The Gleitring friction force measuring device according to claim 1, characterized in that: The fixing mechanism includes a movable shaft (8) rotatably connected to the middle position of the rear side of the inner cavity of the loading plate (3) and a rotating tooth roller (9) fixedly installed at the front end of the movable shaft (8). A first L-shaped rack plate (10) and a second L-shaped rack plate (11) are respectively engaged at the top and bottom of the rotating tooth roller (9). A first threaded rod (12) is fixedly installed near the middle position of one side of the second L-shaped rack plate (11). A threaded tube (13) is threadedly connected to the outer periphery of the first threaded rod (12). One end of the threaded tube (13) movably penetrates through the inner cavity of the loading plate (3). Connecting columns (16) are fixedly installed at the top of the first L-shaped rack plate (10) and the second L-shaped rack plate (11) near the side away from each other. An opening is formed at the middle position of the top of the loading plate (3), and the top ends of the connecting columns (16) all penetrate through the inner cavity of the rectangular opening and are fixedly connected to a fixing ring (17).

4. The Gleason ring friction measurement device according to claim 3, wherein: A hand wheel (14) is fixedly installed at one end of the threaded tube (13).

5. The Gleitring friction force measuring device according to claim 3, characterized in that: Limiting telescopic rods (15) are fixedly installed at the top and bottom of the side away from each other of the first L-shaped rack plate (10) and the second L-shaped rack plate (11), and the end parts of the limiting telescopic rods (15) are respectively fixedly connected to the inner cavity side wall of the loading plate (3).

6. The Gleason ring friction measurement device according to claim 1, characterized in that: An installation opening is formed near one side of the front side of the force measuring machine (1), and a digital display is installed in the inner cavity of the installation opening.

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