Traction type elevator counterweight automatic adjusting device

Abstract

The utility model belongs to the field of elevator adjustment, and discloses an automatic counterweight adjusting device for a traction type elevator. Comprising opposite vertical moving mechanisms and a counterweight storage guide rail used for storing and guiding a counterweight block path, a counterweight body is arranged on the top face of the counterweight storage guide rail, and the counterweight body is detachably connected with a counterweight block; the side, facing the counterweight storage guide rail, of the vertical moving mechanism is connected with a telescopic mechanism, and the telescopic direction of the telescopic mechanism is away from or close to the counterweight storage guide rail. The end, facing the counterweight storage guide rail, of the telescopic mechanism is connected with a rotating mechanism, and the rotating mechanism is provided with a counterweight pin grabber for grabbing or loosening a counterweight pin; and the counterweight pin is used for connecting the counterweight block and the counterweight body into an integral structure. Through mutual cooperation of the vertical moving mechanism, the telescopic mechanism and the rotating mechanism, automatic adjustment of the counterweight is achieved.

Description

Technical Field

[0001] The utility model relates to the field of elevator adjustment, in particular to a counterweight automatic adjustment device for a traction elevator. Background Art

[0002] Generally, when installing an elevator, it is necessary to determine the counterweight of a traction elevator, and the weight of the counterweight will not be adjusted during the subsequent use of the elevator. If the counterweight is not properly set, when the traction elevator runs with no load or full load, it will be in a high-load working condition. Being in this condition for a long time will increase the power consumption and reduce the service life of the motor. Content of the Utility Model

[0003] The purpose of the utility model is to solve the above problems and provide a counterweight automatic adjustment device for a traction elevator.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A counterweight automatic adjustment device for a traction elevator, including a relative vertical movement mechanism and a counterweight storage guide rail for storing and guiding the path of counterweight blocks. A counterweight body is arranged on the top surface of the counterweight storage guide rail, and the counterweight body is detachably connected with counterweight blocks; One side of the vertical movement mechanism facing the counterweight storage guide rail is connected with a telescopic mechanism, and the telescopic direction of the telescopic mechanism is away from or close to the counterweight storage guide rail;

[0005] One end of the telescopic mechanism facing the counterweight storage guide rail is connected with a rotation mechanism, and the rotation mechanism has a counterweight pin gripper for gripping or releasing a counterweight pin;

[0006] The counterweight pin is used to connect the counterweight block and the counterweight body into an integrated structure.

[0007] According to the utility model, further, the vertical movement mechanism includes a housing arranged vertically upward, and an accommodation cavity is arranged inside it. An up-and-down reciprocating movement structure is installed in the accommodation cavity, and the up-and-down reciprocating movement structure is connected with the telescopic mechanism to drive the telescopic mechanism to move up and down reciprocally to achieve position adjustment.

[0008] According to the utility model, further, the up-and-down reciprocating movement structure includes a screw rod. The upper end of the screw rod penetrates through the top wall of the housing and is connected with the output shaft of a first servo motor, and the lower end of the screw rod is fixed to the housing; Guide rails parallel to the screw rod are arranged on both sides of the screw rod. The two ends of the guide rails are respectively fixed to the corresponding side of the housing, and a lifting lug for connecting with the telescopic mechanism is slidably connected to the guide rails, and the lifting lug is sleeved on the outer periphery of the screw rod.

[0009] According to the utility model, further, the telescopic mechanism includes a box body, one end of which is fixed to the telescopic mechanism, and its interior is a cavity structure;

[0010] The box body is installed with a second servo motor. The second output shaft of the second servo motor is located inside the inner cavity of the box body. A rotating disk is connected to the end of the second output shaft. A connecting rod mechanism is fixedly connected to the edge of the rotating disk to achieve reciprocating motion in the horizontal direction. One end of the connecting rod mechanism penetrates through the side wall of the box body, and this end is fixedly connected to the rotating mechanism.

[0011] According to the present invention, further, the connecting rod mechanism includes a connecting rod fixedly connected to the edge of the rotating disk. One end of the connecting rod is connected with a guiding block, and an expansion rod is connected to the end of the guiding block. The expansion rod penetrates through the side wall of the box body and is fixedly connected to the rotating mechanism.

[0012] According to the present invention, further, the rotating mechanism includes a third servo motor fixedly connected to the telescopic mechanism. The end of the third output shaft of the third servo motor is connected with a counterweight pin gripper for gripping the counterweight pin.

[0013] According to the present invention, further, key grooves are formed on the surface of the counterweight pin gripper, and notches matching the key grooves are arranged on the outer peripheral surface of the counterweight pin. The notches are clamped with the key grooves to realize the counterweight pin gripper gripping the counterweight pin.

[0014] According to the present invention, further, a vertically downward counterweight block fixing column is arranged at the bottom of the counterweight body. A plurality of mounting holes distributed along its length direction are formed on the outer peripheral surface of the counterweight block fixing column;

[0015] The counterweight block has a guiding hole penetrating through its top surface and bottom surface. The size of the guiding hole matches that of the counterweight block fixing column for positioning the counterweight block fixing column;

[0016] Fixing holes are arranged on the side surface of the counterweight block. The counterweight pin penetrates through the fixing holes and the mounting holes to realize the fixed connection between the two.

[0017] Compared with the prior art, the beneficial effect of the present invention is that: the vertical displacement is adjusted by the vertical movement mechanism, the telescopic mechanism connected thereto adjusts the distance between the counterweight pin and the counterweight block, and the rotating mechanism connected to the telescopic mechanism adjusts the disassembly of the counterweight pin and the counterweight block, realizing the automatic adjustment of the elevator counterweight body Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a counterweight automatic adjustment device for a traction elevator according to the present invention;

[0019] Figure 2 It is a schematic structural diagram of the vertical movement mechanism of the present invention;

[0020] Figure 3 It is a schematic structural diagram of the telescopic mechanism of the present invention;

[0021] Figure 4Structural schematic diagram of the rotating mechanism of the present utility model;

[0022] Figure 5 Schematic diagram of the connection component between the counterweight body and the counterweight block of the present utility model;

[0023] Figure 6 Schematic diagram before installation of the counterweight pin and the counterweight block of the present utility model;

[0024] Figure 7 Schematic diagram after installation of the counterweight pin and the counterweight block of the present utility model;

[0025] Figure 8 Schematic diagram of the counterweight block and the counterweight pin structure.

[0026] In the figure, 1 - mounting base, 2 - vertical moving mechanism, 21 - first servo motor, 22 - screw rod, 23 - guide rail, 24 - lifting lug, 25 - housing, 3 - telescopic mechanism, 31 - second servo motor, 32 - telescopic rod, 33 - guide block, 34 - connecting rod, 35 - rotating disc, 36 - output shaft, 4 - rotating mechanism, 41 - third servo motor, 42 - third output shaft, 43 - counterweight pin gripper, 5 - counterweight pin, 51 - notch, 6 - counterweight block, 61 - keyway, 7 - counterweight body, 71 - counterweight block fixing column, 72 - mounting hole, 73 - guide hole, 74 - fixing hole, 8 - counterweight storage guide rail. Specific implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Such as Figure 1As shown in the figure, a counterweight automatic adjustment device for a traction elevator can realize the automatic adjustment of the elevator counterweight and achieve the purpose of energy saving. It includes an installation base 1, the top surface of which is a plane. On this plane, there are a relative vertical movement mechanism 2 and a counterweight storage guide rail 8 for storing the path of guiding the counterweight block 6. The top surface of the counterweight storage guide rail 8 is provided with a counterweight body 7, and the bottom of the counterweight body 7 is connected with a counterweight block 6; one side of the vertical movement mechanism 2 facing the counterweight storage guide rail 8 is connected with a telescopic mechanism 3, and the telescopic direction of the telescopic mechanism 3 is away from or close to the counterweight storage guide rail 8; one end of the telescopic mechanism 3 facing the counterweight storage guide rail 8 is connected with a rotating mechanism 4, and the rotating mechanism 4 has a counterweight pin gripper 43 for grasping or releasing the counterweight pin 5; the opposite surfaces of the counterweight storage guide rail 8 form an inward concave guide groove, and both ends of the counterweight block 6 are respectively embedded in the guide grooves on the corresponding sides, and the counterweight block 6 can slide up and down along the guide groove; the counterweight block 6 is multiple pieces, and they are stacked in sequence from bottom to top along the length direction of the guide groove to provide different counterweight weights.

[0029] Specifically, as Figure 2 shown, the vertical movement mechanism 2 includes a housing 25 arranged vertically upward, and its internal is provided with an accommodation cavity. A screw rod 22 is installed in the accommodation cavity. The upper end of the screw rod 22 passes through the top wall of the housing 25 and is connected with the output shaft of the first servo motor 21, and the lower end of the screw rod 22 is fixedly connected with the inner surface of the bottom of the housing 25. On both sides of the screw rod 22, there are guide rails 23 parallel to it. The two ends of the guide rails 23 are respectively fixedly connected with the corresponding sides of the housing 25. The guide rails 23 are slidably connected with a lug 24 for connecting with the telescopic mechanism 3, and the lug 24 is sleeved on the outer circumference of the screw rod 22. When the first servo motor 21 is started, it drives the screw rod 22 to rotate, and then drives the lug 24 to move up and down along the guide rails 23. The first servo motor 21 can accurately control the vertical height of the telescopic mechanism 3, so that the counterweight fixing pin 5 is coaxial with the fixing hole 74 detailed below, and the relative positions of the counterweight body 7 and the counterweight block 6 are fixed by the counterweight fixing pin 5.

[0030] As Figure 3 shown, the telescopic mechanism 3 includes a box body 37, one end of which is fixedly connected with the lug 24, and its internal is a cavity structure; a second servo motor 31 is installed in the box body 37, and the second output shaft 36 of the second servo motor 31 is located in the internal cavity of the box body 37. The end of the second output shaft 36 is connected with a rotating disk 35, and a connecting rod 34 is fixedly connected to the edge of the rotating disk 35. One end of the connecting rod 34 is connected with a guide block 33, and the end of the guide block 33 is connected with a telescopic rod 32. The telescopic rod 32 passes through the opposite side wall of the side wall of the box body 37 fixedly connected with the lug 24 and is fixedly connected with the rotating mechanism 4. As the rotating disk 35 rotates, the connecting rod 34 drives the telescopic rod 32 to perform a horizontal linear reciprocating motion under the constraint of the guide block 33, driving the rotating mechanism 4 to move away from or close to the counterweight storage guide rail 8.

[0031] As Figure 4 and Figure 8As shown in the figure, the rotating mechanism 4 includes a third servo motor 41 fixedly connected to the telescopic rod 32. The end of the third output shaft 42 of the third servo motor 41 is connected with a counterweight pin gripper 43 for gripping the counterweight pin 5. The third servo motor 41 can accurately control the rotation angle of the counterweight pin gripper 43. With the vertical movement of the counterweight body 7, the counterweight pin 5 can be disengaged from and inserted into the counterweight pin gripper 43. Preferably, the counterweight pin gripper 43 is a cylindrical block with a certain thickness, and a keyway 61 is formed on its outer peripheral surface. A notch 51 matching the keyway 61 is provided on the outer peripheral surface of the counterweight pin 5. The notch 51 is clamped with the keyway 61 to realize the counterweight pin gripper 43 gripping the counterweight pin. When it is necessary to disengage the counterweight pin 5 from the counterweight pin gripper 43, start the third servo motor 41 to make the opening of the keyway 61 face upward. In this way, the counterweight body 7 moves vertically upward, driving the notch 51 to disengage from the keyway 61, that is, realizing the disengagement of the counterweight pin 5 from the counterweight pin gripper 43.

[0032] As Figure 5 shown, a counterweight block fixing column 71 is installed at the bottom of the counterweight body 7. A plurality of mounting holes 72 are formed on the outer peripheral surface of the counterweight block fixing column 71 along its length direction. The counterweight block 6 has a guiding hole 73 penetrating its top and bottom surfaces. The size of the guiding hole 73 matches that of the counterweight block fixing column 71 for positioning the counterweight block fixing column 71; fixing holes 74 are provided on the side surface of the counterweight block 6. The counterweight pin 5 penetrates the fixing hole 74 and the mounting hole 72 to fixedly connect the counterweight block 6 with the counterweight body 7.

[0033] Working principle: The device realizes the automatic adjustment of the counterweight through three motion mechanisms, namely the vertical movement mechanism 2, the telescopic mechanism 3, and the rotating mechanism. As Figures 5 - 8 shown, the vertical movement mechanism 2 moves the counterweight pin 5 to a position coaxial with the fixing hole 74. The third servo motor 41 rotates a certain angle to make the opening of the keyway 61 of the counterweight pin gripping device 43 correspond to the notch 51 of the counterweight pin 5, and the two are clamped and fixed; the third servo motor 31 is started to drive the rotating disk 35 to rotate, driving the telescopic rod 32 to extend towards the counterweight storage guide rail 8, so that the counterweight pin 5 is inserted into the fixing hole 74. The third servo motor 41 rotates, and the keyway 61 of the counterweight pin gripping device 43 rotates to have its opening facing upward. At this time, the elevator counterweight body 7 moves vertically upward, and the counterweight pin 5 can slide out of the keyway 61. The adjustable counterweight block 6 and the counterweight 7 can move upward together to realize the automatic adjustment function of the counterweight. If it is necessary to increase or decrease the counterweight weight again, that is, increase or decrease the counterweight block 6, the opening of the key 61 can be rotated to a position where it faces vertically upward. The counterweight body 7 moves downward, and the counterweight pin 5 automatically slides into the keyway 61. At this time, rotate the counterweight pin gripping device 43 to pull out the counterweight pin 5 from the fixing hole 74 and then insert it into the adjustable counterweight block 6 with the required weight. Repeat the above steps to realize the re-adjustment of the counterweight.

[0034] Although embodiments of the utility model have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A traction elevator counterweight automatic adjustment device, characterized in that: It includes a relative vertical moving mechanism and a counterweight storage guide rail for storing and guiding the path of the counterweight block, the top surface of the counterweight storage guide rail is provided with a counterweight body, and the counterweight block is detachably connected to the counterweight body; A telescopic mechanism is connected to one side of the vertical moving mechanism facing the counterweight storage guide rail, and the telescopic mechanism is telescopically moved away from or close to the counterweight storage guide rail; One end of the telescopic mechanism facing the counterweight storage rail is connected to a rotating mechanism, and the rotating mechanism has a counterweight pin grabber for grabbing or releasing the counterweight pin; The counterweight pin is used to connect the counterweight block and the counterweight body into an integrated structure.

2. The automatic counterweight adjustment device for a traction elevator according to claim 1, characterized in that: The vertical moving mechanism includes a shell arranged vertically upward, a receiving cavity is arranged inside the shell, an up and down reciprocating moving structure is installed in the receiving cavity, and the up and down reciprocating moving structure is connected to the telescopic mechanism to drive the telescopic mechanism to reciprocate up and down to achieve position adjustment.

3. The automatic counterweight adjustment device for a traction elevator according to claim 2, characterized in that: The up-and-down reciprocating structure comprises a screw, the upper end of which penetrates through the top wall of the housing and is connected to the output shaft of the first servo motor, and the lower end of which is fixedly connected to the housing; Guide rails parallel to the screw are arranged on both sides, and both ends of the guide rails are fixedly connected to the shells on the corresponding sides respectively. The guide rails are slidably connected with lifting ears for connecting with the telescopic mechanism, and the lifting ears are sleeved on the outer periphery of the screw.

4. The automatic counterweight adjustment device for a traction elevator according to claim 1, characterized in that: The telescopic mechanism comprises a box body, one end of which is fixedly connected to the telescopic mechanism, and the interior of which is a cavity structure; A second servo motor is installed in the box body, and the second output shaft of the second servo motor is located in the internal cavity of the box body. The end of the second output shaft is connected to a rotating disk, and the edge of the rotating disk is fixedly connected to a connecting rod mechanism to achieve horizontal reciprocating motion. One end of the connecting rod mechanism passes through the side wall of the box body, and the end is fixedly connected to the rotating mechanism.

5. The automatic counterweight adjustment device for a traction elevator according to claim 4, characterized in that: The connecting rod mechanism comprises a connecting rod fixedly connected to the edge of the rotating disk, one end of the connecting rod is connected to a guide block, the end of the guide block is connected to a telescopic rod, and the telescopic rod penetrates the side wall of the box body and is fixedly connected to the rotating mechanism.

6. The automatic counterweight adjustment device for a traction elevator according to claim 1, characterized in that: The rotating mechanism comprises a third servo motor fixedly connected to the telescopic mechanism, and a counterweight pin grabber for grabbing the counterweight pin is connected to the end of the third output shaft of the third servo motor.

7. The automatic counterweight adjustment device for a traction elevator according to claim 6, characterized in that: A keyway is formed on the surface of the counterweight pin grabber, and a notch matching the keyway is arranged on the outer peripheral surface of the counterweight pin. The notch is engaged with the keyway, so that the counterweight pin grabber can grab the counterweight pin.

8. The automatic counterweight adjustment device for a traction elevator according to claim 1, characterized in that: A counterweight block fixing column extending vertically downward is disposed at the bottom of the counterweight body, and a plurality of mounting holes distributed along the length direction of the counterweight block fixing column are formed on the outer peripheral surface thereof; The counterweight block has guide holes penetrating the top and bottom surfaces thereof, the size of the guide holes matches the counterweight block fixing column, and is used for positioning the counterweight block fixing column; A fixing hole is arranged on the side surface of the counterweight block, and the counterweight pin passes through the fixing hole and the mounting hole to realize a fixed connection between the two.

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