An alarm system for electric variable frequency rack and pinion type lifting system

Abstract

The application discloses an alarm system for an electric variable-frequency gear and rack type lifting system and belongs to the technical field of gear and rack elevators. When the rack is detected, the telescopic contact rod is inserted into the tooth gap of the rack, then the end of the pressing rod close to the driving piston can be continuously lifted and lowered through the movable rod, and the gas collecting pipe can be inflated in the lifting and lowering process. Under the action of the passive piston, the annular disc is driven to move upwards. If the rack does not have the broken tooth condition, the lifting height of the multiple annular discs is the same, and the horizontal disc is kept in the horizontal state. At this time, the light emitted by the laser emitter is blocked by the blocking ball, and the laser receiver cannot receive the light, which indicates that the multiple racks do not have the broken tooth condition. If one of the racks has the broken tooth, the light emitted by the laser emitter is not blocked by the blocking ball and is received by the laser receiver, which indicates that the rack has the broken tooth and needs to be repaired.

Description

TECHNICAL FIELD

[0001] The present application relates to the rack and pinion elevator technical field, more particularly, to a kind of alarm system for electric variable frequency rack and pinion lifting system. BACKGROUND

[0002] The rack and pinion synchronous lifter is the structure of gear box and connecting shaft combined by gear and rack, for maintaining plane balance, synchronous unit when operating up and down, several gears inside gear box are transmitted to each other, almost no noise, can be normally operated when under 50% bias, guide rail is in unit form, standardization of parts makes parts replacement quickly and easy maintenance.

[0003] It is mainly applied to glass lifting unit, automatic warehouse taking and placing goods elevator, plane elevator, conveying lifting converter and other automatic production equipment upgrading platform.

[0004] The existing rack and pinion elevator driven by variable frequency motor may have broken teeth after long time use, because rack bears the load of goods, and the top of multiple racks is not in the same plane after broken teeth, so the goods may fall off when lifting, which has great safety hazard, thus further improvement is needed. SUMMARY

[0005] 1. Technical problem to be solved

[0006] In view of the problems in the prior art, the purpose of the present application is to provide an alarm system for electric variable frequency rack and pinion lifting system, which detects the rack by setting detection device, inserts telescopic touch rod into the tooth gap of rack, then the end of pressure rod close to driving piston can be continuously lifted and lowered by movable rod, and the gas in the gas collecting pipe can be filled during lifting and lowering, and the annular disc is driven to move upward under the action of passive piston, if the rack has no broken teeth, the height of multiple annular discs is the same, and the horizontal disc remains horizontal, then the light emitted by laser emitter is blocked by blocking ball, and the laser receiver cannot receive the light, indicating that multiple racks have no broken teeth, if one of the racks is broken, the light emitted by laser emitter is not blocked by blocking ball and is received by laser receiver, indicating that the rack is broken and needs to be repaired.

[0007] 2. Technical scheme

[0008] To solve the above problems, the present application adopts the following technical scheme.

[0009] The utility model provides an alarm system for electric variable frequency gear rack type lifting system, including base plate, the top surface fixed connection of base plate has a plurality of gear box, the inside all mounted with rack of gear box, the bottom surface fixed connection of base plate has installation box, the side wall of installation box is near gear box and is equipped with rectangular window, installation box is near gear box and is provided with a plurality of detection device and gear box and detection device one to one, detection device includes inflation pipe, gas collecting pipe, riser, the side wall rotationally connected with pivot of riser, the side wall fixed connection of one side of pivot has pressure rod and the pressure rod passes through rectangular window and extends to the inboard of installation box, the other side fixed connection of pivot has transmission rod, the one end fixed connection of transmission rod away from pivot has heat receiving pipe, the inner wall slip connection of heat receiving pipe has telescopic plug, the side wall fixed connection of one side of telescopic plug has telescopic touch rod, the one end of telescopic touch rod extends to one side of rack, the inner wall fixed connection of bottom end of inflation pipe, the fixed connection of inflation pipe and gas collecting pipe has connecting pipe, the inner wall of inflation pipe and gas collecting pipe is slip connected with driving piston and passive piston respectively, the top surface of driving piston is hinged with movable rod between one end of pressure rod, the top surface fixed connection of passive piston has top rod, the outer wall of inflation pipe and connecting pipe is all fixed connection with one way air valve,

[0010] The inner wall of the top end of the installation box is fixedly connected with a plurality of hanging rods corresponding to the detection devices, the outer wall of the hanging rod is slidably connected with a ring-shaped disc, the top end of the top rod is attached to the bottom surface of the ring-shaped disc, a plurality of horizontal discs are arranged between the ring-shaped discs, a pull rope is fixedly connected between the ring-shaped disc and the horizontal disc, a blocking ball is placed in the inner circle of the horizontal disc, a laser receiver is fixedly connected to the middle of the inner wall of the top end of the installation box, and a laser emitter is fixedly connected to the middle of the inner wall of the bottom end of the installation box.

[0011] Further, the horizontal disc is made of transparent material, which avoids blocking the light emitted by the laser emitter.

[0012] Further, the bottom surface of the base plate near the rack is fixedly connected with a heating block, the bottom end of the heating block is fixedly connected with a heat-conducting wire, and one end of the heat-conducting wire extends to the inside of the heat receiving pipe.

[0013] Further, the inside of the heat receiving pipe is filled with an expansion liquid, and the expansion liquid is located to the right of the telescopic plug; when it is necessary to measure the rack, the heating block can be started and the expansion liquid in the heat receiving pipe can be heated through the action of the heat-conducting wire, the volume of the expansion liquid increases after being heated and pushes the telescopic touch rod to insert into the tooth gap of the rack, when the detection is completed, the heating block is turned off, the expansion liquid cools and shrinks, and one end of the telescopic touch rod is removed from the tooth gap of the rack, through the above setting, the telescopic touch rod is avoided from being stuck in the tooth gap of the rack.

[0014] Further, the heat-conducting wire is made of flexible material, and the heat-conducting wire avoids affecting the normal swing of the heated pipe.

[0015] Further, the side wall of the gas collecting pipe is fixedly connected with an electromagnetic valve, and the middle portion of the bottom end of the passive piston is fixedly connected with a gravity ball, through the above setting, when the rack is detected, the electromagnetic valve is closed to prevent the gas filled in the gas collecting pipe from being discharged through the electromagnetic valve, and when the detection is completed, the electromagnetic valve is opened, and the passive piston is driven downward by the gravity ball to discharge the gas in the gas collecting pipe, so that the next detection is prepared, and the device can repeatedly detect the rack.

[0016] Further, one side of the horizontal disc close to the blocking ball is provided in an arc shape, through the setting of the horizontal disc, when the detection is completed and the multiple annular discs are lowered to a uniform height, the blocking ball can be rolled to the center of the horizontal disc, so that the next detection is prepared.

[0017] Further, the top surface of the base plate is fixedly connected with a buzzer, and the buzzer is electrically connected with the laser receiver, through the setting of the buzzer, when the laser receiver receives the light emitted by the laser emitter, an electric signal is sent to the buzzer to make it ring, so as to remind the staff.

[0018] Further, the pressure rod, the telescopic touch rod, the transmission rod and the heated pipe are on the same straight line, through the above setting, the pressure rod can better rotate with the rotation of the telescopic touch rod.

[0019] Further, the center points of the laser receiver, the horizontal disc and the laser emitter are on the same straight line.

[0020] 3. Beneficial effects

[0021] Compared with the prior art, the advantages of the present application are that:

[0022] (1) Through the setting of the detection device, when the rack is detected, the telescopic touch rod is inserted into the tooth gap of the rack, and then the end of the pressure rod close to the driving piston can be continuously lifted and lowered through the driving of the movable rod, and in the lifting and lowering process, the gas collecting pipe can be inflated, and the annular disc is driven to move upward under the action of the passive piston, if the rack does not have a broken tooth, the height of the multiple annular discs is the same, and the horizontal disc is kept in a horizontal state, at this time, the light emitted by the laser emitter is blocked by the blocking ball, and the laser receiver cannot receive the light, which indicates that the multiple racks do not have a broken tooth, and if one of the racks has a broken tooth, the light emitted by the laser emitter is not blocked by the blocking ball and is received by the laser receiver, which indicates that the rack has a broken tooth and needs to be repaired.

[0023] (2) The horizontal disc is made of transparent material, and the horizontal disc avoids shielding the light emitted by the laser emitter.

[0024] (3) The inside of the heated pipe is filled with expansion liquid, and the expansion liquid is located at the right side of the telescopic plug. When the rack needs to be measured, the heating block can be started to heat the expansion liquid in the heated pipe through the heat-conducting wire. The volume of the expansion liquid increases after being heated to push the telescopic touch rod to insert into the tooth gap of the rack. When the detection is completed, the heating block is turned off, and the expansion liquid cools and shrinks to drive one end of the telescopic touch rod to move out of the tooth gap of the rack. Through the above arrangement, the telescopic touch rod is avoided from being stuck in the tooth gap of the rack.

[0025] (4) The heat-conducting wire is made of flexible material, and the arrangement of the heat-conducting wire avoids affecting the normal swinging of the heated pipe.

[0026] (5) The side wall of the gas collecting pipe is fixedly connected with an electromagnetic valve, and the middle part of the bottom end of the passive piston is fixedly connected with a gravity ball. Through the above arrangement, when the rack is detected, the electromagnetic valve is closed to prevent the gas filled in the gas collecting pipe from being discharged through the electromagnetic valve. When the detection is completed, the electromagnetic valve is opened, and the passive piston moves downward under the action of the gravity ball to discharge the gas in the gas collecting pipe, preparing for the next detection, so that the device can repeatedly detect the rack.

[0027] (6) The side of the horizontal disc close to the blocking ball is arranged in an arc shape. Through the arrangement of the horizontal disc, when the detection is completed and the multiple annular discs are lowered to a uniform height, the blocking ball can be rolled to the center of the horizontal disc, preparing for the next detection.

[0028] (7) The top surface of the base plate is fixedly connected with a buzzer, and the buzzer is electrically connected with the laser receiver. Through the arrangement of the buzzer, when the laser receiver receives the light emitted by the laser emitter, an electric signal is sent to the buzzer to make it ring, reminding the staff.

[0029] (8) The pressure rod, the telescopic touch rod, the transmission rod, and the heated pipe are on the same straight line. Through the above arrangement, the pressure rod can better rotate with the rotation of the telescopic touch rod. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0031] Figure 2 is a schematic diagram of the front view cross-sectional structure of the present application;

[0032] Figure 3 is a schematic diagram of the top view cross-sectional structure of the installation box of the present application;

[0033] Figure 4 is a schematic diagram of the front view cross-sectional structure of the detection device of the present application;

[0034] Figure 5 Fig. 1 is a perspective view of the installation box of the present application;

[0035] Figure 6 Fig. 2 is a perspective view of the present application;

[0036] Figure 7 Fig. 3 is a front view of the vertical plate of the present application;

[0037] Figure 8 Fig. 4 is a front view of the heated pipe of the present application;

[0038] Figure 9 Fig. 5 is a view of the heated pipe of the present application after the heating block is started;

[0039] Figure 10 Fig. 6 is a view of the present application after the rack drives the telescopic touch rod;

[0040] Figure 11 Fig. 7 is a view of the present application when the horizontal disc is inclined;

[0041] Figure 12 Fig. 8 is a view of the present application when the horizontal disc is not inclined.

[0042] Figure legend:

[0043] 1, base plate; 2, gear box; 201, rack; 3, installation box; 4, detection device; 401, inflation pipe; 402, air collection pipe; 403, connecting pipe; 404, pressing rod; 405, vertical plate; 406, telescopic touch rod; 407, transmission rod; 408, driving piston; 5, heated pipe; 501, telescopic plug; 6, driven piston; 601, ejector rod; 602, gravity ball; 7, suspension rod; 701, annular disc; 8, horizontal disc; 801, shielding ball; 9, pull rope; 10, laser emitter; 1001, laser receiver; 11, heating block; 12, movable rod; 13, electromagnetic valve; 14, buzzer; 15, spring. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0045] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] Embodiment 1:

[0048] Please refer to Figures 1-12An alarm system for electric variable frequency gear rack type lifting system, including base plate 1, the top surface of base plate 1 is fixedly connected with a plurality of gear boxes 2, the inside of gear box 2 is installed with rack 201, the bottom surface of base plate 1 is fixedly connected with mounting box 3, rectangular window is opened in the side wall of mounting box 3 close to gear box 2, a plurality of detection devices 4 are arranged at the position of mounting box 3 close to gear box 2 and gear box 2 and detection device 4 one-to-one correspondence, detection device 4 includes inflation pipe 401, air receiving pipe 402, vertical plate 405, the side wall of vertical plate 405 is rotatably connected with shaft, the side wall of one side of shaft is fixedly connected with pressing rod 404 and pressing rod 404 penetrates through rectangular window and extends to the inside of mounting box 3, the other side of shaft is fixedly connected with transmission rod 407, the end of transmission rod 407 away from shaft is fixedly connected with heated pipe 5, the inner wall of heated pipe 5 is slidably connected with telescopic plug 501, the side wall of one side of telescopic plug 501 is fixedly connected with telescopic touch rod 406, one end of telescopic touch rod 406 extends to one side of rack 201, inflation pipe 401 and the inner wall of 3 bottom end are fixedly connected, inflation pipe 401 and air receiving pipe 402 are fixedly connected with connecting pipe 403 between them, the inner wall of inflation pipe 401 and air receiving pipe 402 is slidably connected with driving piston 408 and passive piston 6 respectively, hinge is connected with movable rod 12 between one end of pressing rod 404 and the top surface of driving piston 408, the top surface of passive piston 6 is fixedly connected with top rod 601, the side wall of inflation pipe 401 and the outer wall of connecting pipe 403 are fixedly connected with one-way air valve;Specifically, the air of outside can enter into inflation pipe 401 through one-way air valve on inflation pipe 401, the air inside inflation pipe 401 can be discharged to air receiving pipe 402 through one-way air valve on connecting pipe 403;

[0049] The inner wall of mounting box 3 top end is fixedly connected with a plurality of hangers 7 corresponding to detection device 4, the outer wall of hanger 7 is slidably connected with annular disc 701, the top end of top rod 601 is attached to the bottom surface of annular disc 701, a plurality of annular discs 701 are provided with horizontal disc 8 between them, annular disc 701 and horizontal disc 8 are fixedly connected with pull rope 9, the inner circle of horizontal disc 8 is placed with shielding ball 801, the middle part of inner wall of mounting box 3 top end is fixedly connected with laser receiver 1001, the middle part of inner wall of mounting box 3 bottom end is fixedly connected with laser emitter 10;

[0050] When the rack 201 is detected, it is moved up and down for a period of time and then stopped. Before detection, the telescopic touch rod 406 is inserted into the tooth gap of the rack 201. When the rack 201 moves up and down, the telescopic touch rod 406 can be rotated around the rotating shaft, and the spring 15 can make the telescopic touch rod 406 rebound, that is, the rack 201 can continuously rotate the telescopic touch rod 406. At this time, the end of the pressure rod 404 close to the driving piston 408 can continuously drive the driving piston 408 to rise and fall through the movable rod 12. The driving piston 408 can charge the gas collecting pipe 402 during the rising and falling process. The passive piston 6 drives the annular disc 701 to move upward through the action of the top rod 601. If the rack 201 does not have a broken tooth, the swing times of the plurality of telescopic touch rods 406 are the same, that is, the rising heights of the plurality of annular discs 701 are the same, and the horizontal disc 8 is kept in a horizontal state. At this time, the light emitted by the laser emitter 10 is blocked by the blocking ball 801, and the laser receiver 1001 cannot receive the light, indicating that the plurality of racks 201 do not have a broken tooth. If one of the racks 201 has a broken tooth, the swing times of the corresponding telescopic touch rod 406 are less, and the rising height of the annular disc 701 is lower than that of the other annular discs 701, which will cause the horizontal disc 8 to be inclined. At this time, the light emitted by the laser emitter 10 is not blocked by the blocking ball 801 and is received by the laser receiver 1001, indicating that one of the racks 201 has a broken tooth and needs to be repaired.

[0051] Please refer to Figures 11-12 The horizontal disc 8 is made of transparent material, which avoids the horizontal disc 8 from blocking the light emitted by the laser emitter 10.

[0052] Please refer to Figures 7-10 The bottom surface of the base plate 1 close to the rack 201 is fixedly connected with a heating block 11, and the bottom end of the heating block 11 is fixedly connected with a heat conducting wire. One end of the heat conducting wire extends to the inside of the heated pipe 5. The inside of the heated pipe 5 is filled with an expansion liquid, and the expansion liquid is located to the right of the telescopic plug 501. When it is necessary to measure the rack 201, the heating block 11 can be started to heat the expansion liquid in the heated pipe 5 through the action of the heat conducting wire. The volume of the expansion liquid increases after being heated to push the telescopic touch rod 406 inserted into the tooth gap of the rack 201. After the detection is completed, the heating block 11 is turned off, and the expansion liquid cools and shrinks to drive one end of the telescopic touch rod 406 to move out of the tooth gap of the rack 201. Through the above setting, the telescopic touch rod 406 is avoided from being always stuck in the tooth gap of the rack 201. The heat conducting wire is made of flexible material, and through the setting of the heat conducting wire, the heat conducting wire is avoided from affecting the normal swing of the heated pipe 5.

[0053] Please refer to Figures 11-12The side wall of the gas collecting pipe 402 is fixedly connected with the electromagnetic valve 13, and the middle part of the bottom end of the passive piston 6 is fixedly connected with the gravity ball 602. Through the above setting, when the rack 201 is detected, the electromagnetic valve 13 is closed to prevent the gas filled in the inside of the gas collecting pipe 402 from being discharged through the electromagnetic valve 13. When the detection is completed, the electromagnetic valve 13 is opened, and the passive piston 6 moves downward under the action of the gravity ball 602 to discharge the gas in the inside of the gas collecting pipe 402, so as to prepare for the next detection. The horizontal disc 8 is provided with a circular arc shape on the side close to the blocking ball 801. Through the setting of the horizontal disc 8, when the detection is completed and the plurality of annular discs 701 are lowered to the same height, the blocking ball 801 can be rolled to the center of the horizontal disc 8, so as to prepare for the next detection.

[0054] Please refer to Figure 1 and Figures 11-12 The top surface of the substrate 1 is fixedly connected with the buzzer 14, and the buzzer 14 is electrically connected with the laser receiver 1001. Through the setting of the buzzer 14, when the laser receiver 1001 receives the light emitted by the laser emitter 10, an electric signal is sent to the buzzer 14 to make it ring, so as to remind the staff. The pressing rod 404, the telescopic touch rod 406, the transmission rod 407 and the heated pipe 5 are on the same straight line. Through the above setting, the pressing rod 404 can better rotate with the rotation of the telescopic touch rod 406. The center points of the laser receiver 1001, the horizontal disc 8 and the laser emitter 10 are on the same straight line.

[0055] The above is only the preferred specific embodiment of the present application; however, the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme of the present application and the improvement concept thereof within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An alarm system for an electric variable frequency rack and pinion lifting system, comprising a base plate (1), a plurality of gearboxes (2) are fixedly connected to the top surface of the base plate (1), a rack (201) is installed in each of the gearboxes (2), characterized in that: The bottom surface of the substrate (1) is fixedly connected with a mounting box (3), a rectangular window is opened in the side wall of the mounting box (3) close to the gear box (2), a plurality of detection devices (4) are arranged on the mounting box (3) close to the gear box (2), and the gear box (2) corresponds to the detection device (4), the detection device (4) comprises an inflation pipe (401), a gas collecting pipe (402) and a vertical plate (405), a rotating shaft is rotatably connected to the side wall of the vertical plate (405), a pressing rod (404) is fixedly connected to one side of the rotating shaft and extends to the inside of the mounting box (3) through the rectangular window, a transmission rod (407) is fixedly connected to the other side of the rotating shaft, a heated pipe (5) is fixedly connected to the end of the transmission rod (407) away from the rotating shaft, a telescopic plug (501) is slidably connected to the inner wall of the heated pipe (5), a telescopic touch rod (406) is fixedly connected to one side of the telescopic plug (501), one end of the telescopic touch rod (406) extends to one side of the rack (201), the inflation pipe (401) is fixedly connected to the inner wall of the bottom end of the mounting box (3), a connecting pipe (403) is fixedly connected between the inflation pipe (401) and the gas collecting pipe (402), a driving piston (408) and a driven piston (6) are slidably connected to the inner walls of the inflation pipe (401) and the gas collecting pipe (402) respectively, a movable rod (12) is hinged between one end of the pressing rod (404) and the top surface of the driving piston (408), a top rod (601) is fixedly connected to the top surface of the driven piston (6), and a one-way air valve is fixedly connected to the side wall of the inflation pipe (401) and the outer wall of the connecting pipe (403); A plurality of hangers (7) corresponding to the detection devices (4) are fixedly connected to the inner wall of the top end of the mounting box (3), a ring-shaped disc (701) is slidably connected to the outer wall of the hanger (7), the top end of the top rod (601) is attached to the bottom surface of the ring-shaped disc (701), a horizontal disc (8) is arranged between a plurality of ring-shaped discs (701), the horizontal disc (8) is made of transparent material, a pull rope (9) is fixedly connected between the ring-shaped disc (701) and the horizontal disc (8), a shielding ball (801) is placed in the inner ring of the horizontal disc (8), a laser receiver (1001) is fixedly connected to the middle of the inner wall of the top end of the mounting box (3), and a laser emitter (10) is fixedly connected to the middle of the inner wall of the bottom end of the mounting box (3).

2. The alarm system for use in the electric variable frequency rack and pinion type lifting system according to claim 1, characterized in that: A heating block (11) is fixedly connected to the bottom surface of the substrate (1) close to the rack (201), a heat-conducting wire is fixedly connected to the bottom end of the heating block (11), one end of the heat-conducting wire extends to the inside of the heated pipe (5), the heat-conducting wire is made of flexible material, the inside of the heated pipe (5) is filled with expansion liquid, and the expansion liquid is located to the right of the telescopic plug (501).

3. The alarm system for use in the electric variable frequency rack and pinion type lifting system according to claim 1, characterized in that: An electromagnetic valve (13) is fixedly connected to the side wall of the gas collecting pipe (402), and a gravity ball (602) is fixedly connected to the middle of the bottom end of the driven piston (6).

4. The alarm system for use in the electric variable frequency rack and pinion type lifting system according to claim 1, characterized in that: One side of the horizontal disc (8) close to the shielding ball (801) is arranged in a circular arc shape.

5. The alarm system for use in the electric variable frequency rack and pinion type lifting system according to claim 1, characterized in that: The top surface of the substrate (1) is fixedly connected with a buzzer (14), and the buzzer (14) is electrically connected with a laser receiver (1001).

6. The alarm system for use in the electric variable frequency rack and pinion type lift system according to claim 1, characterized in that: The pressing rod (404), the telescopic touch rod (406), the transmission rod (407) and the heated pipe (5) are on the same straight line.

7. The alarm system for use in the electric variable frequency rack and pinion type lift system according to claim 1, characterized in that: The center points of the laser receiver (1001), the horizontal disc (8) and the laser emitter (10) are on the same straight line.

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