Buffer force measuring device

Abstract

The utility model provides a buffer force measuring device which comprises a rack, a jack which is horizontally distributed is fixed on the rack, a pressure sensor is fixed at the free end of the jack, the pressure sensor is connected with a display used for displaying a pressure value, a first supporting plate which is vertically distributed is fixed on the rack, and a second supporting plate which is vertically distributed is fixed on the first supporting plate. The rack is provided with a first clamping structure capable of fixing a buffer in the horizontal direction, the first clamping structure is located between the first supporting plate and the pressure sensor, and the device further comprises a position indicating device used for determining that a piston rod of the buffer moves by 64 mm. The buffer force measuring device can solve the problems that the buffer is prone to deviation during force measurement, potential safety hazards are caused, and the buffer is damaged, and the force measurement work of the buffer can be completed through one-time operation.

Description

Technical Field

[0001] The present application relates to a buffer detection technology, and in particular to a buffer force measuring device. Background Art

[0002] Before assembling an existing spring buffer, in order to ensure the stable performance of the buffer when in use, the buffer is usually subjected to force measurement by a force measuring shaft.

[0003] At present, a force measuring device used for the force measurement of the buffer includes a frame, a vertically distributed hydraulic cylinder is fixed on the frame, a pressure sensor is fixed at the free end of the hydraulic cylinder, the pressure sensor is connected to a display for displaying the pressure value, and a placement table for placing the buffer is provided on the frame. When in use, the buffer is placed vertically on the placement table, and the buffer is supported by hand, and then the hydraulic cylinder is operated so that the free end of the hydraulic cylinder drives the pressure sensor to move down and contact with the piston rod of the buffer, then the buffer is released by hand, and then the pressure sensor continues to move down. At this time, the pressure sensor pushes the piston rod to move. When the piston rod moves 64mm, the hydraulic cylinder stops pushing out. At this time, observe the displayed value on the display. If the displayed value is within the range of 70000±500KN, the buffer is qualified and can be used for assembly, otherwise it is unqualified.

[0004] However, this method does not effectively fix the buffer when measuring the force on the buffer, resulting in the buffer being easily offset and squeezed out when it is squeezed between the pressure sensor and the placement table, causing safety hazards. Although a protective baffle surrounding the buffer is provided on the frame, after the buffer is squeezed out, not only does it need to be force measured again, but the buffer is also easily damaged. Utility Model Content

[0005] The present application provides a buffer force measuring device, which is used to solve the problem that the buffer is easily squeezed out when the existing force measuring device measures the force of the buffer.

[0006] The present application provides a buffer force measuring device, comprising a frame, on which horizontally distributed jacks are fixed;

[0007] A pressure sensor is fixed to the free end of the jack, and the pressure sensor is connected to a display for displaying pressure values;

[0008] A vertically distributed first support plate is fixed on the frame;

[0009] The frame is provided with a first clamping structure capable of fixing the buffer in a horizontal direction, and the first clamping structure is located between the first support plate and the pressure sensor;

[0010] Also included is a position indicating device for determining that the piston rod of the buffer has moved 64 mm.

[0011] Optionally, the position indicating device includes a moving rod, a travel switch, an indicator light, and a power supply;

[0012] The travel switch, the indicator light and the power supply are connected to form a series circuit;

[0013] The moving rod is fixed on the pressure sensor, the indicator light and the travel switch are installed on the frame, and the travel switch is located on the right side of the moving rod;

[0014] Among them, after the moving rod hits the travel switch and connects the series circuit, the moving distance of the piston rod of the buffer is 64mm.

[0015] Optionally, the indicator light and the travel switch are both detachably fixedly connected to the frame.

[0016] Optionally, a second support plate and a second clamping structure are fixed on the frame;

[0017] The bottom of the jack is detachably fixedly connected to the second support plate, and the head of the jack is clamped and fixed by the second clamping structure.

[0018] Optionally, the first clamping structure and the second clamping structure both include a base, the base is fixed on the frame, and a pressing piece is detachably fixed on the upper end of the base;

[0019] The upper end of the base and the lower end of the pressing piece are both provided with a clamping groove of a V-shaped structure.

[0020] Optionally, a pad is fixed on the inner wall of the clamping groove.

[0021] Optionally, a reinforcement plate group is fixed between the first support plate and the second support plate and the frame.

[0022] Optionally, two symmetrically distributed side panels are fixed between the lower portion of the first support plate and the lower portion of the second support plate, and the side panels are fixedly connected to the frame and the base at the same time.

[0023] Optionally, two symmetrically distributed pull rods are detachably fixed between the upper portion of the first support plate and the upper portion of the second support plate.

[0024] Optionally, a limiting ring for sleeved on the bottom of the buffer is fixed on the first supporting plate.

[0025] Compared with the prior art, the beneficial effects of this application are:

[0026] The buffer force measuring device provided by the present application is provided with a horizontally distributed jack fixed on a frame, a pressure sensor fixed at the free end of the jack, and a display for displaying the pressure value connected to the pressure sensor, a vertically distributed first support plate fixed on the frame, a first clamping structure capable of fixing the buffer in the horizontal direction is provided on the frame, and the first clamping structure is located between the first support plate and the pressure sensor, and also includes a position indicating device for determining that the piston rod of the buffer moves 64mm, so that when the buffer is measuring force, the first clamping structure can fix the buffer horizontally on the frame by clamping, and the first support plate can abut against the bottom end face of the buffer, thereby stably fixing the buffer on the frame, and when the pressure sensor pushes the piston rod of the buffer to move horizontally, the buffer is more stable and the buffer will not deviate, which not only solves the problem that the buffer is prone to deviate, brings safety hazards, and damages the buffer, but also completes the force measurement of the buffer in one operation. In addition, the position indicating device can facilitate the staff to determine the moving distance of the piston rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A schematic diagram of the three-dimensional structure of a buffer force measuring device provided in an embodiment of the present application;

[0029] Figure 2 A schematic diagram of the front view structure of a buffer force measuring device provided in an embodiment of the present application;

[0030] Figure 3 A schematic diagram of a partial cross-sectional structure of a buffer force measuring device provided in an embodiment of the present application;

[0031] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of region A;

[0032] Figure 5 A schematic diagram of a partial side cross-sectional structure of a buffer force measuring device provided in an embodiment of the present application.

[0033] Explanation of the accompanying drawings: frame 1, jack 2, pressure sensor 3, first support plate 4, second support plate 5, reinforcement plate group 6, side plate 7, pull rod 8, nut 9, limit ring 10, first clamping structure 11, second clamping structure 12, base 13, pressure piece 14, threaded hole 15, through hole 16, clamping bolt 17, clamping groove 18, pad 19, moving rod 20, travel switch 21, contact 22, indicator light 23, mounting sleeve 24, locking bolt 25, buffer 26, piston rod 27. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0035] like Figure 1-Figure 5 As shown:

[0036] A buffer force measuring device provided in an embodiment of the present application includes a frame 1, on which a horizontally distributed jack 2 is fixed. A pressure sensor 3 is detachably fixed at the free end of the jack 2, which is convenient for later replacement of the pressure sensor 3. The pressure sensor 3 is connected to a display (not shown in the figure) for displaying a pressure value, and the display is installed on the frame 1.

[0037] In this embodiment, the connection method between the pressure sensor 3 and the display, the pressure sensor 3, and the display are all existing technologies and will not be described in detail.

[0038] A vertically distributed first support plate 4 is welded and fixed on the frame 1 .

[0039] A first clamping structure 11 capable of fixing the buffer 26 in a horizontal direction is provided on the frame 1, and the first clamping structure 11 is located between the first support plate 4 and the pressure sensor 3, so that after the buffer 26 is clamped and fixed by the first clamping structure 11, the bottom end surface of the buffer 26 can contact the first support plate 4, and then after the piston rod 27 of the buffer 26 is pushed by the pressure sensor 3, the first support plate 4 can abut against the buffer 26, that is, the buffer 26 is supported and limited.

[0040] It also includes a position indicating device for determining that the piston rod 27 of the buffer 26 moves 64 mm, so that the staff can determine the moving distance of the piston rod 27.

[0041] In this embodiment, the jack 2 is a 15-ton mechanical jack 2 .

[0042] When in use, the buffer 26 is first clamped horizontally on the frame 1 through the first clamping structure 11, and the bottom end face of the buffer 26 is in contact with the first support plate 4. Then the staff operates the jack 2 to make the free end of the jack 2 slowly drive the pressure sensor 3 to move toward the buffer 26. After the pressure sensor 3 moves a certain distance, the pressure sensor 3 pushes the piston rod 27 of the buffer 26 to move. At this time, the position indicating device is used to move the piston rod 27 64mm. When the piston rod 27 moves 64mm, the hydraulic cylinder is stopped. At this time, the displayed value on the display is observed. If the displayed value is within the range of 70000±500KN, the buffer 26 is qualified and can be used for assembly, otherwise it is unqualified.

[0043] The buffer force measuring device provided in this embodiment can stably fix the buffer 26 on the frame 1 by clamping the buffer 26 with the first clamping structure 11 and allowing the first support plate 4 to abut against the buffer 26. When the pressure sensor 3 pushes the piston rod 27 of the buffer 26 to move horizontally, the buffer 26 is relatively stable and will not deviate. This not only solves the problem that the buffer 26 is prone to deviate, causing safety hazards and damaging the buffer 26, but also completes the force measurement of the buffer 26 with one operation. In addition, by manually operating the jack 2, the free end of the jack 2 slowly drives the pressure sensor 3 to move, that is, the pressure sensor 3 can push the piston rod 27 of the buffer 26 to move slowly, and with the cooperation of the position indicating device, the error of the piston rod 27 moving 64mm can be reduced.

[0044] The position indicating device provided in one embodiment of the present application includes a moving rod 20, a travel switch 21, an indicator light 23, and a power supply (not shown in the figure). The travel switch 21, the indicator light 23 and the power supply are connected to form a series circuit.

[0045] In this embodiment, the power source is a battery. The travel switch 21 is a direct-acting travel switch 21, and when the contact 22 of the travel switch 21 is in a free state, the series circuit is in a disconnected state.

[0046] The moving rod 20 is fixed on the pressure sensor 3. Specifically, a mounting sleeve 24 is fixed on the upper end of the moving rod 20, and a locking bolt 25 is installed on the mounting sleeve 24, which penetrates the mounting sleeve 24 and is threadedly connected to the mounting sleeve 24. The mounting sleeve 24 is on the outer shell of the pressure sensor 3 and contacts the outer shell, and the locking bolt 25 presses the outer shell of the pressure sensor 3. When the pressure sensor 3 is replaced later, it is convenient to remove the moving rod 20.

[0047] The indicator light 23 and the travel switch 21 are installed on the frame 1 , and the travel switch 21 is located at the right side of the moving rod 20 to ensure that the moving rod 20 can smoothly hit the travel switch 21 .

[0048] Among them, after the moving rod 20 hits the travel switch 21 and connects the series circuit, the moving distance of the piston rod 27 of the buffer 26 is 64mm.

[0049] Specifically, after the pressure sensor 3 contacts the end face of the piston rod 27 of the buffer 26 fixed on the frame 1, the end face of one side of the moving rod 20 is flush with the end face of the piston rod 27. The distance between the end face of the contact 22 of the travel switch 21 and the end face of the piston rod 27 is L1. After the contact 22 is pressed to connect the series circuit, the distance moved by the contact 22 is L2. The sum of L1 and L2 is 64 mm.

[0050] During use, when the jack 2 drives the pressure sensor 3 to move, the pressure sensor 3 drives the moving rod 20 to move synchronously with it. When the pressure sensor 3 contacts the end face of the piston rod 27, one side end face of the moving rod 20 is flush with the end face of the piston rod 27, which is the starting position of the movement of the piston rod 27. Then the pressure sensor 3 continues to move and pushes the piston rod 27 to move. When the moving rod 20 hits the contact 22 of the travel switch 21, the travel switch 21 connects the series circuit and the indicator light 23 lights up. After the staff observes that the indicator light 23 lights up, they can stop operating the jack 2, that is, stop the movement of the piston rod 27. Since the sum of L1 and L2 is 64mm, the distance moved by the piston rod 27 is 64mm at this time.

[0051] In this embodiment, the indicator light 23 is used to light up to determine that the piston rod 27 has moved 64 mm, which can facilitate the staff to determine the position where the piston rod 27 has moved 64 mm.

[0052] In order to facilitate the later replacement of the indicator light 23 and the travel switch 21, an embodiment of the present application provides that the indicator light 23 and the travel switch 21 are both detachably fixedly connected to the frame 1 by bolts.

[0053] In order to improve the stability of the installation of the jack 2 and facilitate the disassembly and maintenance of the jack 2 in the later stage, an embodiment of the present application provides that a second support plate 5 and a second clamping structure 12 are fixed to the frame 1, and the bottom of the jack 2 is detachably fixedly connected to the second support plate 5 by bolts. The head of the jack 2 is clamped and fixed by the second clamping structure 12.

[0054] In this embodiment, the bottom of the second support plate 5 is fixed to the frame 1 by welding.

[0055] According to an embodiment of the present application, the first clamping structure 11 and the second clamping structure 12 both include a base 13, which is welded and fixed to the frame 1, and a pressing piece 14 is detachably fixed to the upper end of the base 13. Specifically, two symmetrically distributed threaded holes 15 are formed at the upper end of the base 13, and the pressing piece 14 has two through holes 16 corresponding to the two threaded holes 15, and also includes two clamping bolts 17, which pass through the through holes 16 and are meshed and connected with the threaded holes 15.

[0056] The upper end of the base 13 and the lower end of the pressing piece 14 are both provided with a V-shaped clamping groove 18 .

[0057] In this embodiment, two V-shaped clamping grooves 18 are provided through the first clamping structure 11 and the second clamping structure 12. The head of the jack 2 is clamped between the two clamping grooves 18 of the first clamping structure 11, and the shell of the buffer 26 is clamped between the two clamping grooves 18 of the second clamping structure 12. Therefore, four points distributed in a ring shape can clamp the jack 2 and the buffer 26 at the same time, thereby achieving a stable clamping effect.

[0058] In order to further improve the clamping effect, an embodiment of the present application provides that a backing plate 19 is fixed on the inner wall of the clamping groove 18. Specifically, the backing plate 19 is a nylon plate.

[0059] In order to improve the stability of the first support plate 4 and the second support plate 5, an embodiment of the present application provides that a reinforcement plate group 6 is welded and fixed between the first support plate 4 and the second support plate 5 and the frame 1. Specifically, the reinforcement plate group 6 is composed of no less than two reinforcement plates.

[0060] In order to further improve the stability of the first support plate 4, the second support plate 5 and the base 13, an embodiment of the present application provides that two symmetrically distributed side plates 7 are fixed between the lower part of the first support plate 4 and the lower part of the second support plate 5, and the side plates 7 are fixedly connected to the frame 1 and the base 13 at the same time.

[0061] According to an embodiment of the present application, two symmetrically distributed pull rods 8 are detachably fixed between the upper portion of the first support plate 4 and the upper portion of the second support plate 5 .

[0062] Specifically, the pull rod 8 is a lead screw structure, and the pull rod 8 passes through the first support plate 4 and the second support plate 5 at the same time, and four nuts 9 are threadedly connected on the pull rod 8. Among them, the first support plate 4 is located between two of the nuts 9, and the two nuts 9 simultaneously press the first support plate 4. The second support plate 5 is located between the other two nuts 9, and the two nuts 9 simultaneously press the second support plate 5.

[0063] In this embodiment, by providing two pull rods 8, the upper part of the first support plate 4 and the upper part of the second support plate 5 can be pulled, thereby preventing the first support plate 4 and the second support plate 5 from deforming during force measurement. Moreover, after the pull rods 8 are removed, it is convenient to disassemble and install components such as the jack 2 on the frame 1.

[0064] According to an embodiment of the present application, a limiting ring 10 for being sleeved on the bottom of the buffer 26 is fixed on the first support plate 4, so that after the bottom end surface of the buffer 26 contacts the first support plate 4, the limiting ring 10 can be sleeved on the buffer 26 to limit the bottom of the buffer 26, thereby further improving the fixing effect of the buffer 26.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A buffer force measuring device, characterized in that: It comprises a frame (1), on which horizontally distributed jacks (2) are fixed; A pressure sensor (3) is fixed to the free end of the jack (2), and the pressure sensor (3) is connected to a display for displaying pressure values; A vertically distributed first support plate (4) is fixed on the frame (1); The frame (1) is provided with a first clamping structure (11) capable of fixing the buffer in a horizontal direction, and the first clamping structure (11) is located between the first support plate (4) and the pressure sensor (3); Also included is a position indicating device for determining that the piston rod of the buffer has moved 64 mm.

2. The buffer force measuring device according to claim 1, characterized in that: The position indicating device comprises a moving rod (20), a travel switch (21), an indicator light (23), and a power source; The travel switch (21), the indicator light (23) and the power supply are connected to form a series circuit; The moving rod (20) is fixed on the pressure sensor (3), the indicator light (23) and the travel switch (21) are installed on the frame (1), and the travel switch (21) is located on the right side of the moving rod (20); After the moving rod (20) hits the travel switch (21) and connects the series circuit, the moving distance of the piston rod of the buffer is 64 mm.

3. The buffer force measuring device according to claim 2, characterized in that: The indicator light (23) and the travel switch (21) are both detachably fixedly connected to the frame (1).

4. The buffer force measuring device according to claim 1, characterized in that: A second supporting plate (5) and a second clamping structure (12) are fixed on the frame (1); The bottom of the jack (2) is detachably fixedly connected to the second support plate (5), and the head of the jack (2) is clamped and fixed by the second clamping structure (12).

5. The buffer force measuring device according to claim 4, characterized in that: The first clamping structure (11) and the second clamping structure (12) both comprise a base (13), the base (13) being fixed on the frame (1), and a pressing piece (14) being detachably fixed on the upper end of the base (13); The upper end of the base (13) and the lower end of the pressing piece (14) are both provided with a clamping groove (18) of a V-shaped structure.

6. The buffer force measuring device according to claim 5, characterized in that: A backing plate (19) is fixed on the inner wall of the clamping groove (18).

7. The buffer force measuring device according to claim 5, characterized in that: A reinforcement plate group (6) is fixed between the first support plate (4) and the second support plate (5) and the frame (1).

8. The buffer force measuring device according to claim 7, characterized in that: Two symmetrically distributed side panels (7) are fixed between the lower part of the first support plate (4) and the lower part of the second support plate (5), and the side panels (7) are fixedly connected to the frame (1) and the base (13) at the same time.

9. The buffer force measuring device according to claim 8, characterized in that: Two symmetrically distributed pull rods (8) are detachably fixed between the upper part of the first support plate (4) and the upper part of the second support plate (5).

10. The buffer force measuring device according to claim 1, characterized in that: A limiting ring (10) for sleeve-mounting on the bottom of the buffer is fixed on the first supporting plate (4).

Images