An electric push device for pressure-adjusting weights for bipolar plate wear testing

Abstract

The invention discloses an electric pushing device for a pressure-adjusting weight for a bipolar plate wear test, which comprises a main body component, a fixing frame, the upper end of which is fixedly connected with a transmission housing; a weight pushing and lifting component, comprising a placing bracket which is arranged in the fixing frame and can make reciprocating linear motion in a height direction and is used to place a plurality of weights, a plurality of placing sinks arranged at intervals are arranged in the height direction of the placing bracket, and weights of different weights are arranged in the plurality of placing sinks of the placing bracket one by one, an end of the weight away from the partition is provided with an opening, an end of the placing bracket facing the partition is provided with a pushing port, a guide groove is provided on the partition, a pushing rod which is horizontally arranged and can make linear reciprocating motion is connected to the partition, the pushing rod moves toward the direction where the weight is located or away from the direction where the weight is located, and the pushing rod can abut against the end of the weight away from the opening; the invention can greatly reduce the labor intensity of testers and improve debugging efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of bipolar plate testing, in particular to an electric pushing device for a pressure-adjusting weight used for bipolar plate wear testing. Background Art

[0002] In the prior art, the research on the equipment for electrode plate wear test is basically in a blank stage in China, but there are many friction and wear testing machines. For the wear test of the carbon paper of the electrode plate, the friction and wear testing machine can be used for reference for the pressure application part. The structure for applying pressure to the test piece in the friction and wear testing machine includes a test frame, the upper end of the test frame is rotatably connected to two rollers, and the test frame below the rollers is connected to a lifting plate that can make reciprocating linear motion in the height direction, and a steel wire is connected to the lifting plate. The end of the steel wire away from the lifting plate passes through the two rollers and extends out of the test frame and is connected to a placement plate for placing weights. A pressure sensor is fixedly connected to the lower side of the lifting plate, and a connecting sleeve is connected to the sensing end of the pressure sensor. The lower part of the connecting sleeve is fixedly connected to a pressure head that applies pressure to the test piece. Before the test, the pressure sensor needs to be zeroed, and the tester places weights on the placement plate and the lifting plate respectively. The tester needs to constantly adjust the weight size to zero the pressure sensor, so that the pressure applied by the pressure head on the test piece can be accurately determined in the later test. The debugging process is cumbersome, which increases the labor intensity of the tester and the debugging efficiency is low. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above and / or existing problems in pressure regulation during electrode plate testing, the present invention is proposed. The present invention solves the technical problems of cumbersome debugging and increased test intensity in the prior art. The present invention can greatly reduce the labor intensity of testers and improve debugging efficiency.

[0005] Therefore, the object of the present invention is to provide a pressure-adjusting weight electric pushing device for bipolar plate wear testing, comprising:

[0006] The main body assembly includes a fixing frame, the two ends of the fixing frame respectively have a first installation cavity and a second installation cavity, the first installation cavity and the second installation cavity are separated by a partition, and the upper end of the fixing frame is fixedly connected to a transmission housing;

[0007] The weight pushing and lifting assembly comprises a placing bracket for placing a plurality of weights, which is arranged in a first installation cavity and can make reciprocating linear motion in the height direction; a plurality of placing sinks arranged at intervals are arranged in the height direction of the placing bracket; weights of different weights are arranged in the plurality of placing sinks of the placing bracket; the end of the weight away from the partition has an opening; the placing bracket has a pushing port at the end facing the partition; a guide groove is provided on the partition; a pushing rod which is horizontally arranged and can make linear reciprocating motion is connected to the partition; the pushing rod moves toward or away from the direction where the weight is located, and the pushing rod can contact the end of the weight away from the opening.

[0008] As a preferred solution of the electric pushing device for the pressure-adjusting weight for bipolar plate wear test in the present invention, it also includes a righting assembly, which includes a righting rod that is vertically arranged and can move linearly in the height direction, and the weight can just slide along the righting rod through the opening.

[0009] As a preferred solution of the electric pushing device of the pressure-adjusting weight for bipolar plate wear test in the present invention, when the weight moves in the direction away from the partition under the push of the pushing rod, the straightening rod can also move horizontally, and the bottom plate at the bottom of the transmission housing and the upper end of the fixed frame are respectively provided with an upper moving groove and a lower moving groove for allowing the straightening rod to move horizontally.

[0010] As a preferred solution of the electric pushing device of the pressure-adjusting weight for bipolar plate wear test in the present invention, the straightening assembly also includes a rotating shaft rotatably connected to the transmission housing, the rotating shaft in the transmission housing is a non-circular shape, and a transmission plate is just slidably connected to the rotating shaft in the transmission housing, and when the transmission plate rotates, it drives the straightening rod to rise and fall.

[0011] As a preferred solution of the electric pushing device for the pressure-adjusting weight for bipolar plate wear test in the present invention, a curved transmission groove is provided on the transmission plate below the rotating shaft, a movable plate is connected in the transmission housing, a vertical sliding groove is provided at one end of the movable plate relative to the transmission plate, the upper part of the straightening rod can just slide along the sliding groove, the upper end of the straightening rod is fixedly connected with a movable block inserted into the transmission groove, a circular hole is provided on the movable plate, and the rotating shaft is rotatably connected to the movable plate through the circular hole.

[0012] As a preferred solution of the electric pushing device of the pressure-adjusting weight for bipolar plate wear test in the present invention, wherein: a vertically arranged connecting rod is fixedly connected to the upper side of the pushing rod, a horizontal plate is connected to the upper end of the connecting rod, sliding plates are respectively fixed on both sides of the horizontal plate, the upper end of the sliding plate is fixedly connected to the moving plate, an upper sliding groove for allowing the connecting rod, the horizontal plate and the sliding plate to slide is opened on the transmission housing, and a lower sliding groove for allowing the connecting rod to slide is opened on the upper end of the fixed frame.

[0013] As a preferred solution of the electric pushing device of the pressure-adjusting weight for bipolar plate wear testing in the present invention, a guide sleeve symmetrically arranged about the central axis of the rotating shaft is fixed on the side of the movable plate away from the transmission plate, and the upper end of the sliding plate is fixedly connected to the side of the guide sleeve away from the movable plate.

[0014] As a preferred solution of the electric pushing device of the pressure-adjusting weight for bipolar plate wear test in the present invention, wherein: a guide rod is fixedly connected to the guide sleeve, the upper part of the sliding plate is just sleeved on the corresponding guide rod, the sliding plate is fixedly connected to the corresponding guide rod, and a plurality of groups of support seats are fixedly connected to the fixed frame outside the transmission housing, each group of support seats is composed of two support seats corresponding to the guide rods one by one, and the two guide rods are respectively slidably connected to the corresponding support seats.

[0015] As a preferred solution of the electric pushing device for pressure-adjusting weights for bipolar plate wear testing in the present invention, wherein: a lifting motor is fixedly connected to the upper side of the fixed frame, a vertically arranged lifting screw is rotatably connected to the fixed frame, the placing bracket is threadedly connected to the lifting screw, and the placing bracket is slidably connected to the fixed frame.

[0016] As a preferred solution of the electric pushing device for pressure-adjusting weights for bipolar plate wear testing in the present invention, a transmission motor is fixedly connected to the transmission housing, an output shaft is connected to the transmission motor, and the output shaft extending into the transmission housing is connected to the rotating shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects: a plurality of weights of different sizes arranged in sequence in the height direction are placed by placing a bracket, a plurality of placing openings arranged in the height direction are arranged at one end of the placing bracket away from the partition, the outer edge of each weight fits on the placing bracket at both ends of the placing opening, and the stability of the weight being pushed out is improved; by adjusting the height of the placing bracket, the corresponding weight is raised or lowered to the height of the pushing rod, and the linear drive is controlled to move, and the weight is automatically pushed out of the placing bracket to the weighing plate connected to the bottom end of the steel wire; in the initial state, the lower part of the straightening rod It is inserted into the opening of the lowest weight to prevent the weight from rotating. When the weight is pushed toward the direction of the weighing plate, the righting rod moves synchronously, and the weight will not rotate under the action of the righting rod, so that the opening of the weight can be smoothly inserted into the steel wire; when the outer end of the required weight is inserted into the steel wire, the transmission motor is activated, and the output shaft drives the rotating shaft to rotate. The rotating shaft drives the righting rod up and down through the transmission plate, and the movement direction of the transmission motor is controlled to make the righting rod move up and away from the weight, ensuring that the weight is smoothly inserted into the steel wire while the righting rod is pulled away from the weight, so that the pushing work of different weights can be carried out in a cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 The three-dimensional structure of the present invention Figure 1 .

[0020] Figure 2 It is a top view of the present invention.

[0021] Figure 3 for Figure 2 Local view at AA in the middle.

[0022] Figure 4 for Figure 4 A partial enlarged view of point B in the middle.

[0023] Figure 5 It is a three-dimensional structural diagram when the transmission housing in the present invention is set to a transparent state.

[0024] Figure 6 for Figure 5 A partial enlarged view of point C in the middle.

[0025] Figure 7 for Figure 5 A partial enlarged view of point D in the middle.

[0026] Figure 8 It is a partial three-dimensional structural diagram of the present invention.

[0027] Fig. 9 The three-dimensional structure of the present invention Figure 3 .

[0028] Fig.10 It is a three-dimensional structural diagram of the steel wire and the weighing plate connected together.

[0029] Fig.11 It is a three-dimensional structural diagram of a weighing plate arranged on the side of the present invention.

[0030] Fig.12 It is a schematic diagram of the three-dimensional structure of the weight in the present invention.

[0031] Fig.13 It is a three-dimensional structural diagram when the transmission housing in the present invention is set to a transparent state.

[0032] Fig.14 for Fig.13 A partial enlarged view of point E in the middle.

[0033] In the figure, 100 main assembly, 101 fixing frame, 101a first installation cavity, 101b second installation cavity, 102 transmission housing, 200 weight pushing lifting assembly, 201 placing bracket, 202 lifting screw rod, 203 linear drive, 204 connecting rod, 205 horizontal plate, 206 sliding plate, 207 lifting drive, 208 lifting rod, 209 pushing rod, 210 pushing block, 300 straightening assembly, 301 guide rod, 302 support seat, 303 transmission motor, 304 limit plate, 305 straightening rod, 306 movable Moving block, 307 rotating shaft, 308 output shaft, 309 plug-in block, 309a limiting part, 309b plug-in part, 309c first connecting hole, 310 rotating block, 310a connecting ring, 310b limiting ring, 310c second connecting countersunk hole, 311 transmission plate, 311a second connecting hole, 311b transmission groove, 312 connecting sleeve, 313 moving plate, 313a first connecting countersunk hole, 313b guide sleeve, 313c sliding countersunk groove, 400 weighing plate, 500 supporting plate, 501 passing mouth, 600 weights, 601 opening. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0037] Example 1

[0038] Reference Figure 1 to Figure 3 , Figure 8 and Figure 10 to Figure 14 , which is the first embodiment of the present invention, provides an electric pushing device for a pressure-adjusting weight for a bipolar plate wear test, which can realize automatic pushing of the weight 600 and reduce the labor intensity of the tester.

[0039] A pressure-regulating weight electric pushing device for bipolar plate wear test, comprising a main body component 100 and a weight pushing lifting component 200, wherein the main body component 100 comprises a fixing frame 101, wherein the two ends of the fixing frame 101 respectively have a first installation cavity 101a and a second installation cavity 101b, wherein the first installation cavity 101a and the second installation cavity 101b are separated by a partition, and a transmission housing 102 is fixedly connected to the upper end of the fixing frame 101; the weight pushing lifting component 200 comprises a placing bracket 201 which is arranged in the first installation cavity 101a and can make reciprocating linear motion in the height direction and is used to place a plurality of weights 600, wherein a lifting motor 211 is fixedly connected to the upper side of the fixing frame 101, and a lifting screw rod 202 which is vertically arranged is rotatably connected to the fixing frame 101, and the placing bracket 20 1 is threadedly connected to the lifting screw rod 202, and the placing bracket 201 is slidably connected to the fixing frame 101. A plurality of placing sink grooves arranged at intervals in the height direction are arranged on the placing bracket 201. Weights 600 of different weights are arranged one by one in the plurality of placing sink grooves of the placing bracket 201. The end of the weight 600 away from the partition has an opening 601. The placing bracket 201 has a push opening at one end facing the partition, and a guide groove is provided on the partition. A push rod 209 which is horizontally arranged and can make linear reciprocating motion is connected to the partition. The push rod 209 moves toward the direction where the weight 600 is located or away from the direction where the weight 600 is located. A push block 210 is fixedly connected to one end of the push rod 209 facing the weight 600, and the push block 210 can abut against the end of the weight 600 away from the opening 601.

[0040] Specifically, the transmission housing 102 is also provided with a straightening assembly 300, which includes a straightening rod 305 which is vertically arranged and can make linear motion in the height direction. The weight 600 can just slide along the straightening rod 305 through the opening 601. When the weight 600 moves in the direction away from the partition under the push of the push rod 209, the straightening rod 305 can also move horizontally. The bottom plate at the bottom of the transmission housing 102 and the upper end of the fixed frame 101 are respectively provided with an upper moving groove and a lower moving groove for allowing the straightening rod 305 to move horizontally.

[0041] The bottom of the steel wire is connected to a weighing plate 400, and a plurality of support plates 500 are arranged above the weighing plate 400 at intervals in the height direction. The side of the support plate 500 opposite to the bracket 201 is flush with the side of the weighing plate 400 opposite to the bracket 201. The support plate 500 is also provided with a port 501 (such as Fig.10 As shown in FIG. 1 ), the distance between two adjacent support plates 500 is the same as the height of the weight 600. When implemented, the distance between the bracket 201 and the weighing plate 400 is very small (eg Fig.11), so that the weight 600 can be pushed smoothly onto the weighing plate 400 or the support plate 500; in the initial state, the straightening rod 305 is inserted into the opening 601 of the top weight 600, and the placement bracket 201 is at a set height position. At this time, the pushing block 210 is aligned with the weight 600 that needs to be pushed in the initial state, and the bottom of the straightening rod 305 is inserted into the opening 601 of the bottom weight 600 to avoid deflection of the opening 601 of the weight 600, ensuring that the opening 601 of each weight 600 is aligned with the steel wire; when the weight 600 needs to be pushed, the position of the placement bracket 201 in the height direction is first adjusted, specifically, the lifting motor 211 is controlled to move, the lifting screw rod 202 rotates, and the placement bracket 201 is driven to rise and fall, and when the weight 600 to be pushed moves to the height of the lowest weighing plate 400, the lifting motor 211 stops Action, adjust the position of the bottom of the righting rod 305 in the height direction, so that the bottom of the righting rod 305 is higher than the corresponding bottom position of the weight 600 to be pushed, the righting rod 305 stops lifting, and the pushing rod 209 moves toward the position of the weight 600, the righting rod 305 moves toward the direction of the steel wire, the pushing rod 209 pushes the weight 600 to move along the placement bracket 201, when the weight 600 is pushed to the corresponding weighing plate 400 and just begins to be inserted into the steel wire through the opening 601, the righting rod 305 moves up and leaves the weight 600, the pushing rod 209 continues to push the weight 600, so that the weight 600 contacts the steel wire, and the pushing work of the weight 600 is realized, and the pressure adjustment of the steel wire end is realized by placing different weights 600 on different weighing plates 400, and the pushing rod 209 and the righting rod 305 move in the opposite direction to reset.

[0042] Specifically, the straightening assembly 300 also includes a rotating shaft 307 rotatably connected to the transmission housing 102, a transmission motor 303 is fixedly connected to the transmission housing 102, an output shaft 308 is connected to the transmission motor 303, the output shaft 308 extending into the transmission housing 102 is connected to the rotating shaft 307, the rotating shaft 307 in the transmission housing 102 is a non-circular shape, and a transmission plate 311 is just slidably connected to the rotating shaft 307 in the transmission housing 102, and when the transmission plate 311 rotates, the straightening rod 305 is driven to rise and fall, and the transmission below the rotating shaft 307 A curved transmission groove 311b is provided on the plate 311, a movable plate 313 is connected in the transmission housing 102, and the transmission plate 311 is also rotatably connected to the movable plate 313. A vertical sliding groove 313c is provided at one end of the movable plate 313 relative to the transmission plate 311, and the upper part of the straightening rod 305 can just slide along the sliding groove 313c. The upper end of the straightening rod 305 is fixedly connected to a movable block 306 inserted into the transmission groove 311b. A circular hole is provided on the movable plate 313, and the rotating shaft 307 is rotatably connected to the movable plate 313 through the circular hole.

[0043] When the height of the straightening rod 305 needs to be adjusted, the rotating shaft 307 is rotated, and the rotating shaft 307 drives the transmission plate 311 to rotate. The transmission plate 311 drives the movable block 306 to move through the transmission groove 311b. The straightening rod 305 can only move vertically under the limiting action of the sliding groove 313c. When the straightening rod 305 is raised or lowered to a suitable height, the rotating shaft 307 stops rotating.

[0044] Example 2

[0045] Reference Figure 4 and Figure 7 , which is the second embodiment of the present invention. This embodiment is based on embodiment 1 and provides an electric pushing device for a pressure-adjusting weight for a bipolar plate wear test, which can further achieve a fixed connection between the sliding plate 206 and the moving plate 313.

[0046] Specifically, the upper side of the push rod 209 is fixedly connected to a vertically arranged connecting rod 204, the upper end of the connecting rod 204 is connected to a horizontal plate 205, sliding plates 206 are fixed to both sides of the horizontal plate 205, the upper end of the sliding plate 206 is fixedly connected to the moving plate 313, an upper sliding groove for sliding the connecting rod 204, the horizontal plate 205 and the sliding plate 206 is opened on the transmission housing 102, a lower sliding groove for sliding the connecting rod 204 is opened on the upper end of the fixed frame 101, and a guide symmetrically arranged about the central axis of the rotating shaft 307 is fixed to the side of the moving plate 313 away from the transmission plate 311 Towards the sleeve 313b, the upper end of the sliding plate 206 is fixedly connected to the side of the guide sleeve 313b away from the movable plate 313, the guide sleeve 313b is fixedly connected with a guide rod 301, the upper part of the sliding plate 206 is just sleeved on the corresponding guide rod 301, the sliding plate 206 is fixedly connected to the corresponding guide rod 301, and a plurality of groups of support seats 302 are fixedly connected to the fixed frame 101 outside the transmission housing 102, each group of support seats 302 is composed of two support seats 302 corresponding to the guide rods 301 one by one, and the two guide rods 301 are respectively slidably connected to the corresponding support seats 302.

[0047] When installing the sliding plate 206, the guide rod 301 is inserted into the guide sleeve 313b, and the guide sleeve 313b is fixedly connected to the guide rod 301 with a fixing screw, and then the sliding plate 206 is sleeved on the corresponding guide rod 301, and the sliding plate 206 is fixedly connected to the guide rod 301 with a fixing screw, so as to realize the fixed connection between the sliding plate 206 and the movable plate 313, and the connection is convenient; when the pushing rod 209 moves, the sliding plate 206 is driven to move via the connecting rod 204 and the horizontal plate 205 in turn, the sliding plate 206 drives the guide sleeve 313b to move via the guide rod 301, and the guide sleeve 313b drives the transmission plate 311 and the straightening rod 305 to move in the horizontal direction via the movable plate 313, and the pushing rod 209 pushes at the same time.

[0048] Example 3

[0049] Reference Figure 3 and Figure 4 , which is the fourth embodiment of the present invention. This embodiment is based on embodiment 3 and provides an electric pushing device for a pressure-adjusting weight for a bipolar plate wear test, which can further realize the synchronous movement of the transmission plate 311 and the movable plate 313 without affecting the rotation of the transmission plate 311.

[0050] Specifically, a circular plug-in groove is opened on one side of the moving plate 313 relative to the transmission plate 311, and the moving plate 313 is rotatably connected to the rotating block 310 through the plug-in groove. The rotating block 310 includes a circular connecting ring 310a, and a circular limiting ring 310b is fixed on the side of the connecting ring 310a away from the transmission plate 311. The inner diameter of the limiting ring 310b is smaller than the inner diameter of the connecting ring 310a. The moving plate 313 is connected to the plug-in block 309 through the rotating block 310. The plug-in block 309 includes a plug-in portion 309b, and a limiting portion 309a is fixed to one end of the plug-in portion 309b away from the transmission plate 311. The rotating shaft 307 is rotatably connected to the plug-in block 309. The end of the plug-in portion 309b away from the transmission plate 311 is attached to the step of the limiting ring 310b on the side of the connecting ring 310a. The end of the limiting portion 309a away from the plug-in portion 309b contacts the moving plate 313. The first connecting hole 309c is arranged on the movable plate 313, and a plurality of first connecting countersunk holes 313a corresponding to the first connecting holes 309c are arranged on the movable plate 313. The fixing bolts are screwed into the first connecting hole 309c and the first connecting countersunk holes 313a to fix the plug-in plate and the movable plate 313 together, and at the same time, the axial movement of the rotating block 310 relative to the movable plate 313 is limited. The transmission plate 311 is arranged with a plurality of second connecting holes 311a, and the rotating block 310 is arranged with a plurality of second connecting countersunk holes 310c corresponding to the second connecting holes 311a. The connecting bolts are screwed into the second connecting holes 311a and the second connecting countersunk holes 310c to fix the transmission plate 311 and the rotating block 310 together, thereby realizing the rotation of the transmission plate 311 and the synchronous movement of the transmission plate 311 and the movable plate 313, and there is no relative movement between the transmission plate 311 and the movable plate 313 in the axial direction.

[0051] Example 4

[0052] Reference Figure 5 and Figure 6 , which is the fourth embodiment of the present invention. This embodiment is based on embodiment 3 and provides an electric pushing device for a pressure-adjusting weight for a bipolar plate wear test, which can further improve the reliability of the synchronous movement of the transmission plate 311 and the movable plate 313.

[0053] Specifically, a connecting sleeve 312 is fixedly connected to the transmission plate 311, and the connecting sleeve 312 can rotate around the outer edge of the movable plate 313. A limiting plate 304 is provided on the side of the movable plate 313 away from the transmission plate 311. The limiting plate 304 is attached to the side of the movable plate 313 away from the transmission plate 311, and the limiting plate 304 is fixedly connected to the connecting sleeve 312 outside the movable plate 313.

[0054] When the rotating shaft 307 rotates, the rotating shaft 307 drives the connecting sleeve 312 to rotate around the outer periphery of the movable plate 313 through the transmission plate 311. When the movable plate 313 moves, the movable plate 313 drives the transmission plate 311 to move through the limiting plate 304 and the connecting sleeve 312. The transmission plate 311 slides along the rotating shaft 307, thereby realizing the synchronous movement of the transmission plate 311 and the movable plate 313.

[0055] Example 5

[0056] Reference Fig. 9 , which is the fifth embodiment of the present invention, is based on embodiments 3 and 4. This embodiment provides an electric pushing device for pressure-adjusting weights for bipolar plate wear testing, which can adjust the height of the pushing rod 209 according to the height of the weight 600 to be pushed.

[0057] Specifically, the horizontal plate 205 is slidably connected to the connecting rod 204, and a vertically arranged movable groove is opened at the downward end of the center of the horizontal plate 205. The connecting rod 204 just slides along the horizontal plate 205 through the movable groove. When the connecting rod 204 moves horizontally, it can drive the horizontal plate 205 to move horizontally; the lower part of the fixed frame 101 is fixedly connected to a lifting driver 207, and the lifting driver 207 is connected to a lifting rod 208 that extends upward and can make reciprocating linear motion in the height direction. A lifting plate that can be lifted and lowered is slidably connected in the second installation cavity 101b of the fixed frame 101, and the linear driver 203 is fixedly connected to the upper side of the lifting plate, and the lifting rod 208 is fixedly connected to the lifting plate.

[0058] When the weight 600 to be pushed is lifted to the height position corresponding to the weighing plate 400, the lifting driver 207 is activated, the lifting rod 208 drives the linear driver 203 to lift, and the linear driver 203 drives the pushing rod 209 to move up and down. When the pushing block 210 is aligned with the weight 600 to be pushed, the lifting driver 207 stops lifting.

[0059] The lifting drive 207 and the linear drive 203 in the present application are preferably linear motors.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An electric push device for a pressure-adjusting weight for a bipolar plate wear test, characterized in that: include, The main body component (100) comprises a fixing frame (101), wherein two ends of the fixing frame (101) respectively have a first installation cavity (101a) and a second installation cavity (101b), the first installation cavity (101a) and the second installation cavity (101b) are separated by a partition plate, and the upper end of the fixing frame (101) is fixedly connected to a transmission housing (102); A weight pushing and lifting assembly (200) comprises a placing bracket (201) arranged in a first installation cavity (101a) and capable of reciprocating linear motion in a height direction for placing a plurality of weights (600); a plurality of placing sinks arranged at intervals are arranged in the height direction of the placing bracket (201); weights (600) of different weights are arranged in the plurality of placing sinks of the placing bracket (201); an opening (601) is provided at one end of the weight (600) away from the partition; a pushing opening is provided at one end of the placing bracket (201) facing the partition; a guide groove is provided on the partition; a pushing rod (209) arranged horizontally and capable of reciprocating linear motion is connected to the partition; the pushing rod (209) moves in a direction toward or away from the direction where the weight (600) is located; and the pushing rod (209) can abut against one end of the weight (600) away from the opening (601); The righting assembly (300) comprises a righting rod (305) which is vertically arranged and can perform linear motion in the height direction, a weight (600) can just slide along the righting rod (305) through an opening (601), when the weight (600) moves in a direction away from the partition under the push of a push rod (209), the righting rod (305) can also move horizontally, and an upper moving groove and a lower moving groove for allowing the righting rod (305) to move horizontally are respectively provided on the bottom plate of the bottom of the transmission housing (102) and the upper end of the fixing frame (101).

2. The electric push device for the pressure-adjusting weight for bipolar plate wear testing according to claim 1, characterized in that: The straightening assembly (300) further comprises a rotating shaft (307) rotatably connected to the transmission housing (102); the rotating shaft (307) in the transmission housing (102) is non-circular; a transmission plate (311) is slidably connected to the rotating shaft (307) in the transmission housing (102); when the transmission plate (311) rotates, the straightening rod (305) is driven to rise and fall.

3. The electric push device for the pressure-adjusting weight for bipolar plate wear test according to claim 2, characterized in that: A transmission groove (311b) is formed on the transmission plate (311) below the rotating shaft (307), and a movable plate (313) is connected to the transmission housing (102). A vertical sliding groove (313c) is formed on one end of the movable plate (313) relative to the transmission plate (311). The upper part of the straightening rod (305) can slide along the sliding groove (313c). A movable block (306) inserted into the transmission groove (311b) is fixedly connected to the upper end of the straightening rod (305). A circular hole is formed on the movable plate (313), and the rotating shaft (307) is rotatably connected to the movable plate (313) through the circular hole.

4. The electric push device for the pressure-adjusting weight for bipolar plate wear test according to claim 3, characterized in that: The upper side of the push rod (209) is fixedly connected to a vertically arranged connecting rod (204), the upper end of the connecting rod (204) is connected to a horizontal plate (205), sliding plates (206) are respectively fixed on both sides of the horizontal plate (205), the upper end of the sliding plate (206) is fixedly connected to the movable plate (313), the transmission housing (102) is provided with an upper sliding groove for allowing the connecting rod (204), the horizontal plate (205) and the sliding plate (206) to slide, and the upper end of the fixed frame (101) is provided with a lower sliding groove for allowing the connecting rod (204) to slide.

5. The electric push device for the pressure-adjusting weight for bipolar plate wear testing according to claim 4, characterized in that: A guide sleeve (313b) symmetrically arranged about the central axis of the rotating shaft (307) is fixed to the side of the movable plate (313) away from the transmission plate (311), and the upper end of the sliding plate (206) is fixedly connected to the side of the guide sleeve (313b) away from the movable plate (313).

6. The electric push device for the pressure-adjusting weight for bipolar plate wear testing according to claim 5, characterized in that: The guide sleeve (313b) is fixedly connected to a guide rod (301), the upper part of the sliding plate (206) is just sleeved on the corresponding guide rod (301), the sliding plate (206) is fixedly connected to the corresponding guide rod (301), and a plurality of groups of support seats (302) are fixedly connected to the fixed frame (101) outside the transmission housing (102), each group of support seats (302) is composed of two support seats (302) corresponding to the guide rods (301) one by one, and the two guide rods (301) are respectively slidably connected to the corresponding support seats (302).

7. The electric push device for the pressure-adjusting weight for bipolar plate wear test according to any one of claims 1 to 6, characterized in that: A lifting motor (211) is fixedly connected to the upper side of the fixing frame (101), a vertically arranged lifting screw rod (202) is rotatably connected to the fixing frame (101), the placement bracket (201) is threadedly connected to the lifting screw rod (202), and the placement bracket (201) is slidably connected to the fixing frame (101).

8. The electric push device for pressure-adjusting weights for bipolar plate wear testing according to any one of claims 2 to 6, characterized in that: A transmission motor (303) is fixedly connected to the transmission housing (102), and an output shaft (308) is connected to the transmission motor (303). The output shaft (308) extending into the transmission housing (102) is connected to the rotating shaft (307).

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