Electric push cylinder push-pull force static load testing device

Abstract

The utility model discloses an electric push cylinder push-pull force static load testing device. The device comprises a first fixing seat, a second fixing seat, a guide column, a moving plate and a pressurizing piece. According to the scheme, after the first fixing base is fixed, the piston rod on the electric push cylinder penetrates through the first through hole to abut against the movable plate, the movable plate is slidably connected to the guide column and can move in the first direction, at the moment, external force, namely manual force, acts on a hand rocker on the pressurizing piece, and then the electric push cylinder is driven to move in the first direction; the end, facing the moving plate, of the pressurizing piece can stretch out in the first direction, and at the moment, the end, facing the moving plate, of the pressurizing piece can push the moving plate to move in the first direction. And when the moving plate moves towards the second fixed seat, the moving plate can apply thrust to the piston rod on the electric push cylinder, so that the pressure resistance of the piston rod can be tested. The device can complete the pressure resistance test of the piston rod on the electric push cylinder only by manually acting on the pressurizing piece, and is simple in overall structure and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission product testing, in particular to a static load testing device for push-pull force of an electric push cylinder. Background Art

[0002] The static load table is a test bench for testing the push and pull force of the electric push cylinder. It is divided into a loading end and a fixed end. A loading device is provided on the loading end. When the piston rod of the electric push cylinder is fully extended, it is connected to the loading device for pressure testing.

[0003] Currently, the widely used loading devices are oil cylinders, pneumatic cylinders or electric cylinders. The loading force of the loading device is observed by setting a pressure sensor on the static load platform, and then the magnitude of the loading force is controlled. When the load reaches the maximum output, the axial deformation of the piston rod on the electric push cylinder is observed through a dial indicator.

[0004] However, when the loading device on the existing static loading platform is in use, the oil cylinder, air cylinder or electric cylinder itself has a complex structure, which makes the overall structure of the static loading platform complex and inconvenient to operate. Utility Model Content

[0005] The main purpose of the present application is to provide a static load testing device for the push-pull force of an electric push cylinder, which has a simple overall structure and is easy to operate.

[0006] To achieve the above-mentioned purpose, the present application proposes a static load test device for push-pull force of an electric push cylinder, comprising: a first fixed seat, a second fixed seat, a guide column, a movable plate and a pressure member;

[0007] The second fixing seat is spaced apart from the first fixing seat along a first direction, and a first through hole for the piston rod on the electric push cylinder to pass through is provided on the second fixing seat along the first direction;

[0008] The guide column is arranged between the first fixing seat and the second fixing seat, the movable plate is slidably connected to the guide column, and the movable plate can move along a first direction;

[0009] One end of the pressure member abuts against the first fixing seat, and the other end abuts against the movable plate, and the end of the pressure member facing the movable plate can be extended and retracted along a first direction under the action of an external force.

[0010] In one of the embodiments, a pressure measuring member is further included. The pressure measuring member is disposed on a side of the movable plate facing the first fixed seat, and one end of the pressurizing member facing the movable plate abuts against the pressure measuring member.

[0011] In one of the embodiments, a displacement measuring device is further included, and the displacement measuring device is disposed on the movable plate and is used to measure the displacement value of the movable plate.

[0012] In one embodiment, it further comprises a cover shell, wherein the cover shell is detachably mounted on the first fixing seat and the second fixing seat, and the first fixing seat, the second fixing seat, the guide column, the moving plate, the pressurizing member, the pressure measuring member, and the displacement measuring member are all located in the cover shell;

[0013] The cover shell is provided with a second through hole, and the second through hole is coaxially arranged with the first through hole along a first direction.

[0014] In one of the embodiments, a display is further included, and the display is arranged on the housing, and the pressure measuring element and the displacement measuring element are both electrically connected to the display.

[0015] In one of the embodiments, the cover shell is provided with an elongated hole. When the cover shell is disposed on the first fixing seat and the second fixing seat, the hand crank on the pressure member passes through the elongated hole and is located outside the cover shell.

[0016] In one of the embodiments, an auxiliary block is further included, and the auxiliary block is arranged between the first fixing seat and the pressure member. One end of the auxiliary block is detachably connected to the first fixing seat, and the other end of the auxiliary block abuts against the pressure member.

[0017] In one of the embodiments, a support member is further included, wherein the support member is disposed between the first fixing seat and the movable plate, and the support member abuts against the auxiliary block on one side along a second direction, wherein the second direction is perpendicular to the first direction.

[0018] In one of the embodiments, a V-shaped groove is provided on one side of the support member along the second direction, and the auxiliary block is located in the V-shaped groove.

[0019] In one embodiment, it further comprises a connecting member, wherein the connecting member is detachably connected to a side of the movable plate facing the second fixing seat;

[0020] The piston rod on the electric push cylinder passes through the first through hole and is connected to the connecting piece.

[0021] The static load test device for the push-pull force of the electric push cylinder provided by the present application, after fixing the first fixed seat, by passing the piston rod on the electric push cylinder through the first through hole and abutting against the movable plate, since the movable plate is slidably connected to the guide column and the movable plate can move in the first direction, at this time, through external force, that is, manually acting on the hand crank on the pressure member, the end of the pressure member facing the movable plate can be extended in the first direction, and since the pressure member abuts against the first fixed seat, and the position of the first fixed seat is fixed, at this time, the end of the pressure member facing the movable plate can push the movable plate to move in the first direction. When the movable plate moves toward the second fixed seat, the movable plate will apply a thrust to the piston rod on the electric push cylinder, thereby testing the pressure resistance of the piston rod. The device provided by the present application only needs to manually act on the pressure member to complete the pressure resistance performance test of the piston rod on the electric push cylinder, and the overall structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 A static load test device for the push-pull force of an electric push cylinder provided in one embodiment of the present application;

[0024] Figure 2 for Figure 1 Schematic diagram after the cover is installed.

[0025] Description of Figure Numbers:

[0026] Label name Label name 10 First fixed seat 701 V-groove 20 Second fixing seat 80 Pressure measuring device 201 First through hole 90 Displacement measuring parts 30 Guide column 100 Connectors 40 Mobile board 110 Housing 50 Pressurized parts 1101 Long hole 501 Hand joystick 120 monitor 60 Auxiliary blocks 11 Electric cylinder 70 Support 12 Support block

[0027] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only 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 are within the scope of protection of this application.

[0029] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0031] This application proposes a static load test device for the push and pull force of an electric push cylinder. Figure 1 As shown, Figure 1 The present invention provides a static load testing device for the push and pull force of an electric push cylinder.

[0032] In the embodiments of the present application, Figure 1 As shown, the electric push cylinder push-pull force static load test device comprises: a first fixed seat 10, a second fixed seat 20, a guide column 30, a movable plate 40 and a pressure member 50, wherein the second fixed seat 20 and the first fixed seat 10 are arranged at intervals along the first direction, and the second fixed seat 20 is provided with a first through hole 201 for the piston rod on the electric push cylinder to pass through along the first direction; the guide column 30 is arranged between the first fixed seat 10 and the second fixed seat 20, the movable plate 40 is slidably connected to the guide column 30, and the movable plate 40 can move along the first direction; one end of the pressure member 50 abuts against the first fixed seat 10, and the other end abuts against the movable plate 40, and the end of the pressure member 50 toward the movable plate 40 can be extended and retracted along the first direction under the action of external force.

[0033] In the present embodiment, the first direction is the X-axis direction. In the present embodiment, four guide posts 30 are provided. One end of the guide post 30 is threadedly connected to the vertical plate on the first fixed seat 10, and the other end is threadedly connected to the vertical plate on the second fixed seat 20. Four guide holes are provided on the movable plate 40, and the guide holes are clearance-matched with the guide posts 30. During installation, each guide post 30 can be first inserted into the corresponding guide hole on the movable plate 40, and then the two ends of the guide post 30 can be connected to the first fixed seat 10 and the second fixed seat 20 accordingly. It can be understood that the connection structure between the two ends of the guide post 30 and the first fixed seat 10 and the second fixed seat 20, as well as the number of the guide posts 30 are only examples, and the specific design can be based on actual conditions, and the embodiments of this specification do not limit this.

[0034] In this embodiment, the pressure member 50 can be a jack. Of course, the pressure member 50 can also be other possible structures, such as a cylinder, an electric telescopic rod, etc. The specific structure can be determined according to actual conditions, and this embodiment of the specification does not limit this. The bottom of the jack is in close contact with the side of the first fixed seat 10 facing the moving plate 40, and the hydraulic rod on the jack is in close contact with the side of the moving plate 40 facing the first fixed seat 10.

[0035] When the device is in use, after the first fixing base 10 is fixed, Figure 2 Combined with Figure 1 As shown, the electric push cylinder 11 is supported and fixed by the support block 12, ensuring that the piston rod on the electric push cylinder 11 and the first through hole 201 are coaxially arranged. At this time, the piston rod on the electric push cylinder 11 is extended to the maximum distance and then passes through the first through hole 201 to abut against the movable plate 40. Since the movable plate 40 is slidably connected to the guide column 30, and the movable plate 40 can move along the X-axis, at this time, through external force, that is, manually acting on the hand crank 501 on the jack, the hydraulic rod on the jack can be extended along the X-axis. Since the jack abuts against the first fixed seat 10, and the position of the first fixed seat 10 is fixed, at this time, the hydraulic rod on the jack can push the movable plate 40 to move along the X-axis. When the movable plate 40 moves toward the second fixed seat 20, the movable plate 40 will apply thrust to the piston rod on the electric push cylinder 11, so that the pressure resistance of the piston rod can be tested. The device provided in the present application can complete the pressure resistance performance test of the piston rod on the electric push cylinder 11 only by manually acting on the pressure-applying member 50. The overall structure is simple and the operation is convenient.

[0036] In some embodiments, Figure 1 As shown, the electric push cylinder push-pull force static load test device in the present application also includes a pressure measuring component 80, which is arranged on the side of the movable plate 40 facing the first fixed seat 10, and the end of the pressure-applying component 50 facing the movable plate 40 abuts against the pressure measuring component 80.

[0037] In this embodiment, the pressure measuring member 80 may be a pressure sensor, which may be determined according to actual conditions and is not limited here. When in use, the pressure measuring member 80 is fixed to the side of the moving plate 40 facing the first fixed seat 10 by bolts. The hydraulic rod on the pressure member 50 abuts against the pressure measuring member 80. When the hand crank 501 on the pressure member 50 is acted on by an external force, the magnitude of the force exerted by the hydraulic rod on the pressure member 50 on the moving plate 40 can be displayed by the pressure measuring member 80, thereby facilitating the control of the magnitude of the force acting on the moving plate 40.

[0038] In some embodiments, Figure 1 As shown, the electric push cylinder push-pull force static load testing device in the present application also includes a displacement measuring component 90 , which is disposed on the moving plate 40 and is used to measure the displacement value of the moving plate 40 .

[0039] In this embodiment, the displacement measuring part 90 can use a displacement sensor, which can be determined according to actual conditions and is not limited here. When in use, the displacement measuring part 90 is fixed to the movable plate 40 by bolts. The pressure is applied by a jack, and the pressure ranges from 0 to 7T, and then from 7T to 0 to -7T, to load a push-pull force. The loading gear is 0.5T per gear. The pressure value loaded on the jack can be controlled by the pressure measuring part 80, and the displacement value of the movable plate 40 corresponding to each gear is recorded by the displacement measuring part 90. If the displacement value changes linearly, it is judged that the various components of the electric push cylinder (mainly the screw rod and the piston rod) have elastic deformation, which is a qualified state. If the displacement value changes nonlinearly, it is judged that the various components of the electric push cylinder (mainly the screw rod and the piston rod) have plastic deformation, which is an unqualified state.

[0040] In some embodiments, Figure 2 Combined with Figure 1 As shown, the electric push cylinder push-pull force static load test device in the present application also includes a cover shell 110, which is detachably mounted on the first fixed seat 10 and the second fixed seat 20, and the first fixed seat 10, the second fixed seat 20, the guide column 30, the movable plate 40, the pressure-applying member 50, the pressure measuring member 80 and the displacement measuring member 90 are all located in the cover shell 110; a second through hole is provided on the cover shell 110, and the second through hole is coaxially arranged with the first through hole 201 along the first direction.

[0041] Exemplarily, the cover 110 may be a transparent shell, and a switch door is provided on the cover 110. The bottom surface of the cover 110 is an open structure, and the cover 110 can be directly placed on the horizontal plate on the first fixing seat 10 and the horizontal plate on the second fixing seat 20. It should be noted that the structure of the cover 110 in this embodiment is only an example, and the specific structure can be determined according to actual conditions, and is not limited here.

[0042] Since the first fixed seat 10, the second fixed seat 20, the guide column 30, the movable plate 40, the pressurizing member 50, the pressure measuring member 80 and the displacement measuring member 90 are all located in the cover 110, the risk of components breaking and jumping out to injure people during the loading process can be effectively avoided, thereby improving the safety of the device.

[0043] In some embodiments, Figure 2 Combined with Figure 1 As shown, the electric push cylinder push-pull force static load testing device in the present application also includes a display 120 , which is disposed on the cover 110 , and the pressure measuring component 80 and the displacement measuring component 90 are both electrically connected to the display 120 .

[0044] Since the pressure measuring device 80 and the displacement measuring device 90 are both electrically connected to the display 120, it is convenient to observe the pressure value measured by the pressure measuring device 80 and the displacement value of the displacement measuring device 90. At the same time, the processor in the display 120 can use coordinate lines to show the corresponding relationship between the pressure value and the position value. By observing the coordinate lines, if the displacement value changes linearly, it is judged that the components of the electric push cylinder (mainly the screw rod and the piston rod) have elastic deformation, which is a qualified state. If the displacement value changes nonlinearly, it is judged that the components of the electric push cylinder (mainly the screw rod and the piston rod) have plastic deformation, which is an unqualified state.

[0045] In some embodiments, Figure 2 Combined with Figure 1 As shown, the present application provides an elongated hole 1101 on the cover 110 . When the cover 110 is disposed on the first fixing seat 10 and the second fixing seat 20 , the hand crank 501 on the pressure member 50 passes through the elongated hole 1101 and is located outside the cover 110 .

[0046] In this embodiment, the provision of the elongated hole 1101 facilitates one end of the hand crank 501 to pass through the housing 110 and be located outside the housing 110. After the hand crank 501 passes through the elongated hole 1101, the hand crank 501 can move along the X-axis direction relative to the elongated hole 1101. When in use, the pressure member 50 can be operated by applying an external force to the end of the hand crank 501 located outside the housing 110.

[0047] In some embodiments, Figure 1 As shown, the electric push cylinder push-pull force static load test device in the present application also includes an auxiliary block 60, which is arranged between the first fixed seat 10 and the pressure member 50. One end of the auxiliary block 60 is detachably connected to the first fixed seat 10, and the other end is abutted against the pressure member 50.

[0048] In this embodiment, one end of the auxiliary block 60 is threadedly connected to the first fixing seat 10, and a slot is provided at one end of the auxiliary block 60 facing the pressure member 50, and the pressure member 50 is fixed in the slot, or one end of the auxiliary block 60 facing the pressure member 50 is connected to the pressure member 50 by bolts. It should be noted that the connection structure of the auxiliary block 60, the first fixing seat 10, and the pressure member 50 in this application is only an example, and the specific structure can be determined according to actual conditions, and is not limited here.

[0049] The present application effectively increases the length of the pressure member 50 along the X-axis direction by setting the auxiliary block 60, thereby avoiding the situation where the hydraulic rod on the pressure member 50 needs to be extended a long distance to push the movable plate 40 to move when the pressure member 50 directly abuts against the first fixed seat 10.

[0050] In some embodiments, the electric push cylinder push-pull force static load testing device in the present application also includes a support member 70, which is arranged between the first fixed seat 10 and the movable plate 40, and the support member 70 abuts against the auxiliary block 60 on one side along the second direction, wherein the second direction is perpendicular to the first direction.

[0051] In this embodiment, if Figure 1 As shown, the second direction is the Y-axis direction, and the support member 70 is located between the two guide columns 30 below. The upper end of the support member 70 along the Y-axis direction abuts against the end of the auxiliary block 60 away from the first fixed seat 10, thereby providing a supporting force for the auxiliary block 60 to prevent the end of the auxiliary block 60 away from the first fixed seat 10 from falling.

[0052] In some embodiments, Figure 1 As shown, the present application provides a V-shaped groove 701 on one side of the support member 70 along the second direction, and the auxiliary block 60 is located in the V-shaped groove 701. The provision of the V-shaped groove 701 can ensure that the auxiliary block 60 is stably located on the support member 70. Of course, it can be understood that the upper end of the support member 70 along the Y-axis direction can also be other possible structures, such as a trapezoidal groove, a U-shaped groove, etc., which can be determined according to actual conditions and are not limited here.

[0053] In some embodiments, Figure 1 As shown, the electric push cylinder push-pull force static load test device in the present application also includes a connecting member 100, which is detachably connected to the side of the movable plate 40 facing the second fixed seat 20; the piston rod on the electric push cylinder passes through the first through hole 201 and is connected to the connecting member 100.

[0054] In this embodiment, the provision of the connecting member 100 facilitates the connection between the piston rod and the movable plate 40. The end of the connecting member 100 facing the movable plate 40 is provided with a threaded section, and the end of the connecting member 100 facing the second fixed seat 20 is provided with a positioning hole. The threaded section on the connecting member 100 is threadedly connected to the movable plate 40, and the piston rod on the electric push cylinder passes through the first through hole 201 and then extends into the positioning hole. It should be noted that the above-mentioned connecting member 100 can also be other possible structures, for example, the end of the connecting member facing the movable plate is provided with a buckle, and the connecting member is fixed to the movable plate by the buckle, and the specific structure of the connecting member is not limited here.

[0055] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the application concept of the present application, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A static load test device for push and pull force of electric push cylinder, characterized in that: The electric push cylinder push-pull force static load test device comprises: a first fixed seat (10), a second fixed seat (20), a guide column (30), a movable plate (40) and a pressure member (50); The second fixing seat (20) and the first fixing seat (10) are arranged at intervals along a first direction, and a first through hole (201) for the piston rod on the electric push cylinder to pass through is provided on the second fixing seat (20) along the first direction; The guide column (30) is arranged between the first fixed seat (10) and the second fixed seat (20), the movable plate (40) is slidably connected to the guide column (30), and the movable plate (40) can move along a first direction; One end of the pressure member (50) abuts against the first fixing seat (10), and the other end abuts against the movable plate (40), and the end of the pressure member (50) facing the movable plate (40) can be extended and retracted along a first direction under the action of an external force.

2. The static load test device for push-pull force of electric push cylinder according to claim 1, characterized in that: The electric push cylinder push-pull force static load test device also includes a pressure measuring component (80), which is arranged on a side of the movable plate (40) facing the first fixed seat (10), and one end of the pressure-applying component (50) facing the movable plate (40) abuts against the pressure measuring component (80).

3. The static load test device for push-pull force of electric push cylinder according to claim 2, characterized in that: The electric push cylinder push-pull force static load testing device further comprises a displacement measuring component (90), wherein the displacement measuring component (90) is arranged on the movable plate (40) and is used to measure the displacement value of the movable plate (40).

4. The static load test device for push-pull force of electric push cylinder according to claim 3, characterized in that: The electric push cylinder push-pull force static load test device further comprises a cover shell (110), wherein the cover shell (110) is detachably mounted on the first fixing seat (10) and the second fixing seat (20), and the first fixing seat (10), the second fixing seat (20), the guide column (30), the moving plate (40), the pressurizing member (50), the pressure measuring member (80) and the displacement measuring member (90) are all located in the cover shell (110); The cover shell (110) is provided with a second through hole, and the second through hole is coaxially arranged with the first through hole (201) along a first direction.

5. The electric push cylinder push and pull force static load test device according to claim 4, characterized in that: The electric push cylinder push-pull force static load testing device further comprises a display (120), wherein the display (120) is arranged on the housing (110), and the pressure measuring element (80) and the displacement measuring element (90) are both electrically connected to the display (120).

6. The static load test device for push-pull force of electric push cylinder according to claim 4, characterized in that: The cover shell (110) is provided with an elongated hole (1101); when the cover shell (110) is arranged on the first fixing seat (10) and the second fixing seat (20), the hand crank (501) on the pressure member (50) passes through the elongated hole (1101) and is located outside the cover shell (110).

7. The electric push cylinder push-pull force static load test device according to claim 1 or 4, characterized in that: It also includes an auxiliary block (60), which is arranged between the first fixing seat (10) and the pressure member (50), one end of the auxiliary block (60) is detachably connected to the first fixing seat (10), and the other end is in contact with the pressure member (50).

8. The static load test device for push-pull force of electric push cylinder according to claim 7, characterized in that: The electric push cylinder push-pull force static load test device also includes a support member (70), which is arranged between the first fixed seat (10) and the movable plate (40), and the support member (70) abuts against the auxiliary block (60) on one side along a second direction, wherein the second direction is perpendicular to the first direction.

9. The static load test device for push-pull force of electric push cylinder according to claim 8, characterized in that: A V-shaped groove (701) is provided on one side of the support member (70) along the second direction, and the auxiliary block (60) is located in the V-shaped groove (701).

10. The electric push cylinder push and pull static load test device according to claim 1, characterized in that: The electric push cylinder push-pull force static load test device further comprises a connecting piece (100), wherein the connecting piece (100) is detachably connected to a side of the movable plate (40) facing the second fixing seat (20); The piston rod on the electric push cylinder passes through the first through hole (201) and is connected to the connecting member (100).

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