Counterweight automatic hanging and taking locking device

Abstract

The application discloses a counterweight automatic hanging and taking locking device, which comprises an upper counterweight, a lower counterweight, a first locking mechanism, a transmission mechanism and a second locking mechanism, the first locking mechanism is arranged at the middle part of the two ends of the lower counterweight, the transmission mechanism is arranged at one side of the first locking mechanism, the second locking mechanism is arranged on the lower counterweight, and the first locking mechanism is connected with the second locking mechanism through the transmission mechanism. The counterweight automatic hanging and taking locking device adopts a mechanical mechanism to lock and remove, adopts a double locking structure, is safe and reliable, stable and reliable, does not need manual operation, effectively improves the hanging and taking efficiency of the counterweight, and avoids safety hazards.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automatic hanging and taking locking device, and particularly relates to a counterweight automatic hanging and taking locking device. BACKGROUND

[0002] The counterweight is a weight used to balance a moving part of a machine, and the machine reaches a balanced state by hanging and taking the counterweight. In the prior art, the counterweight needs to be manually hung and taken, which is time-consuming and laborious. Since the installation position of the counterweight is generally high, there is a certain safety hazard when manually hanging and taking the counterweight. SUMMARY

[0003] To at least partially solve the technical problems existing in the prior art, the present application provides a counterweight automatic hanging and taking locking device.

[0004] The counterweight automatic hanging and taking device of the present application comprises an upper counterweight, a lower counterweight, a first locking mechanism, a transmission mechanism and a second locking mechanism. The first locking mechanism is arranged at the middle part of both ends of the lower counterweight, the transmission mechanism is arranged on one side of the first locking mechanism, and the second locking mechanism is arranged on the lower counterweight. The first locking mechanism is connected with the second locking mechanism through the transmission mechanism, wherein:

[0005] The first locking mechanism comprises a locking hook, a rotating table and an extrusion rod. The rotating table is arranged at the bottom of the locking hook, and the extrusion rod is arranged on one side of the rotating table.

[0006] The transmission mechanism comprises a pin shaft, a first mounting key, a gear shaft and a gear. The gear shaft is arranged at one end of the pin shaft, and the gear is mounted on the gear shaft through the first mounting key.

[0007] The second locking mechanism comprises a rack, a spring, a locking rod and a locking groove. The spring is arranged at the top of the rack, one end of the locking rod is arranged at the bottom of the rack, and the other end of the locking rod is arranged in the locking groove.

[0008] Further, in the above-mentioned counterweight automatic hanging and taking locking device, the pin shaft is matched with the rotating table, the pin shaft passes through the lower counterweight and the rotating table in sequence, the rotating table is provided with a second mounting key, the rotating table is fixedly connected with the pin shaft through the second mounting key, and the locking hook is connected with the lower counterweight rotating shaft through the pin shaft.

[0009] Further, in the above-mentioned counterweight automatic hanging and taking locking device, one end of the pin shaft is provided with a fixing groove, one end of the gear shaft is matched with the fixing groove, and the gear shaft and the pin shaft are fixedly connected through the fixing groove.

[0010] Further, in the counterweight automatic hanging and taking locking device, the gear is matched with the rack, and the transmission mechanism is in transmission with the second locking mechanism through the gear and the rack.

[0011] Further, in the counterweight automatic hanging and taking locking device, one end of the spring is welded with the top of the lower counterweight, and the other end of the spring is welded with the top of the rack.

[0012] Further, in the counterweight automatic hanging and taking locking device, the bottom of the locking groove is fixedly connected with the bottom of the lower counterweight, and the top of the locking groove is provided with an expansion opening.

[0013] Further, in the counterweight automatic hanging and taking locking device, the top of the locking rod is welded with the bottom of the rack, the bottom of the locking rod is matched with the locking groove, and the bottom of the locking rod is slidably connected with the inside of the locking groove through the expansion opening.

[0014] Further, in the counterweight automatic hanging and taking locking device, the bottom of the locking rod is irregularly welded by a connecting rod, and the bottom of the locking rod has a height difference.

[0015] The counterweight automatic hanging and taking locking device has the following advantages and beneficial effects:

[0016] Compared with the prior art, the counterweight automatic hanging and taking locking device has the following advantages and beneficial effects: the counterweight automatic hanging and taking locking device is locked by a mechanical mechanism, is safe and reliable, and is stably reliable, the first locking mechanism is extruded by the self-weight of the upper counterweight, the transmission mechanism provides power for the second locking mechanism, the second locking mechanism is locked at the same time as the first locking mechanism, the first locking mechanism is unlocked again under force, manual operation is not needed, the hanging and taking efficiency of the counterweight is effectively improved, and safety hazards are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only used to further understand the present application and form a part of the present application. For those skilled in the art, other drawings can also be obtained from these drawings without creative labor. In the drawings:

[0018] Figure 1 It is a schematic diagram of the counterweight automatic hanging and taking locking device;

[0019] Figure 2 It is a schematic diagram of the counterweight automatic hanging and taking locking device after the upper counterweight is released;

[0020] Figure 3 Fig. 2 is a schematic diagram of the automatic hanging and taking locking device of the counterweight of the application in the state of lifting the upper counterweight;

[0021] Figure 4 Fig. 3 is a schematic diagram of the automatic hanging and taking locking device of the counterweight of the application in the state of lowering the upper counterweight; Figure 2 Fig. 4 is a schematic diagram of the cross-sectional structure of A-A in Fig. 3, showing the connection structure of the first locking mechanism and the second locking mechanism through the transmission mechanism;

[0022] Figure 5 Fig. 5 is a schematic diagram of the cross-sectional structure of B-B in Fig. 3, showing the connection structure of the second locking mechanism and the transmission mechanism; Figure 4

[0023] Figure 6 Fig. 6 is an enlarged schematic diagram of I in Fig. 3, showing the movement process of the locking rod in the locking groove. Figure 5

[0024] Legend of reference signs:

[0025] 100: upper counterweight; 200: lower counterweight;

[0026] 1: first locking mechanism, 11: locking hook;

[0027] 12: rotating table, 121: second mounting key;

[0028] 13: extrusion rod;

[0029] 2: transmission mechanism;

[0030] 21: pin shaft, 211: fixed groove;

[0031] 22: first mounting key, 23: gear shaft, 24: gear;

[0032] 3: second locking mechanism, 31: rack, 32: spring, 33: locking rod;

[0033] 34: locking groove, 341: telescopic opening. DETAILED DESCRIPTION

[0034] In order to make the objects, technical solutions and advantages of the application clearer, the technical solutions of the application will be described clearly and completely below in combination with specific embodiments of the application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the application, but not all the embodiments. Based on the embodiments of the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0035] As Figures 1 to 5 ​​As shown, the counterweight automatic hanging and taking device of the present application comprises an upper counterweight 100, a lower counterweight 200, a first locking mechanism 1, a transmission mechanism 2 and a second locking mechanism 3, the first locking mechanism 1 is arranged at the middle of the two ends of the lower counterweight 200, the transmission mechanism 2 is arranged on one side of the first locking mechanism 1, and the second locking mechanism 3 is arranged on the lower counterweight 200, the first locking mechanism 1 is connected with the second locking mechanism 3 through the transmission mechanism 2, wherein:

[0036] The first locking mechanism 1 comprises a locking hook 11, a rotating table 12 and a pressing rod 13, the rotating table 12 is arranged at the bottom of the locking hook 11, and the pressing rod 13 is arranged on one side of the rotating table 12;

[0037] The transmission mechanism 2 comprises a pin shaft 21, a first mounting key 22, a gear shaft 23 and a gear 24, the gear shaft 23 is arranged at one end of the pin shaft 21, and the gear 24 is mounted on the gear shaft 23 through the first mounting key 22;

[0038] The second locking mechanism 3 comprises a rack 31, a spring 32, a locking rod 33 and a locking groove 34, the spring 32 is arranged at the top of the rack 31, one end of the locking rod 33 is arranged at the bottom of the rack 31, and the other end of the locking rod 33 is arranged in the locking groove 34.

[0039] Further, in the above-mentioned counterweight automatic hanging and taking locking device, the pin shaft 21 is matched with the rotating table 12, the pin shaft 21 passes through the lower counterweight 200 and the rotating table 12 in sequence, the rotating table 12 is provided with a second mounting key 121, the rotating table 12 is fixedly connected with the pin shaft 21 through the second mounting key 121, the locking hook 11 is connected with the rotating shaft of the lower counterweight 200 through the pin shaft 21, when the upper counterweight 100 is pressed downward, the pressing rod 13 moves downward, the rotating table 12 rotates, and the pin shaft 21 rotates, thereby effectively providing the transmission mechanism 2 with rotating force.

[0040] Further, in the above-mentioned counterweight automatic hanging and taking locking device, one end of the pin shaft 21 is provided with a fixed groove 211, one end of the gear shaft 23 is matched with the fixed groove 211, and the gear shaft 23 is fixedly connected with the pin shaft 21 through the fixed groove 211, thereby effectively ensuring the output of the rotating force.

[0041] Further, in the above-mentioned counterweight automatic hanging and taking locking device, the gear 24 is matched with the rack 31, and the transmission mechanism 2 and the second locking mechanism 3 are in meshing transmission through the gear 24 and the rack 31, thereby effectively converting the rotating force into up-down force.

[0042] Further, in the above-mentioned counterweight automatic hanging and taking locking device, one end of the spring 32 is welded with the top of the lower counterweight 200, and the other end of the spring 32 is welded with the top of the rack 31, thereby effectively ensuring that the automatic hanging and taking device is reset through the spring 32 after the counterweight is disassembled.

[0043] Furthermore, in the aforementioned automatic counterweight hooking and locking device, the bottom of the locking groove 34 is fixedly connected to the bottom of the lower counterweight 200, and a telescopic opening 341 is provided on one side of the top of the locking groove 34.

[0044] Furthermore, in the aforementioned automatic counterweight mounting and locking device, the top of the locking rod 33 is welded to the bottom of the rack 31, the bottom of the locking rod 33 is matched with the locking groove 34, and the bottom of the locking rod 33 passes through the telescopic opening 341 and slides inside the locking groove 34. Through the cooperation of the locking rod 33 and the locking groove 34, the rack 31 and the gear 24 are effectively locked, further improving safety.

[0045] Furthermore, in the aforementioned automatic counterweight hooking and locking device, the bottom of the locking rod 33 is irregularly welded from a connecting rod, and there is a height difference at the bottom of the locking rod 33, thereby effectively ensuring that the locking rod 33 can move in a predetermined direction within the locking groove 34.

[0046] Specifically, when the counterweight is being hung or removed, the upper counterweight 100 is lowered to the lower counterweight 200 by means of a lifting mechanism. When the bottom of the upper counterweight 100 presses against the pressing rod 13, the rotating table 12 rotates, causing the locking hook 11 to move. When the bottom of the upper counterweight 100 coincides with the top of the lower counterweight 200, the locking hook 11 closes inward. At the same time, during the rotation of the rotating table 12, the pin 21 is rotated through the connection of the second mounting key 121, and the rotational force is transmitted to the gear 24 through the gear shaft 23. At this time, the gear 24 drives the rack 31 and the locking rod 33 to move downward, and the spring 32 is stretched downward. Figure 6 As shown, the sliding point of the locking rod 33 in the locking groove 34 moves to position C. When the upper counterweight 100 is lifted, due to the gap between the upper counterweight 100 and the locking hook 11, the bottom of the upper counterweight 100 separates from the top of the lower counterweight 200. At the same time, the locking hook 11 interlocks with the upper counterweight 100, and the spring 32 contracts upward, causing the locking rod 33 to move from position C to position D. Since there is a limiting installation point for the locking rod 33 and the locking groove 34 at position D, the first locking mechanism 1 will not continue to unfold. When it is necessary to remove the upper counterweight 100, the bottom of the upper counterweight 100 falls back to the top of the lower counterweight 200. At this time, the locking rod 33 moves from position D to position E, the spring 32 returns from the stretched state to the contracted state, and the rack 31 drives the gear 24 to reverse. Through the transmission of the gear shaft 23 and the pin shaft 21, the first locking mechanism 1 is opened, completing the disassembly.

[0047] Compared with the prior art, the counterweight automatic hanging and taking locking device has the following advantages and beneficial effects: the counterweight automatic hanging and taking locking device is locked by mechanical mechanisms, which is safe, reliable and stable, the first locking mechanism is extruded by the self-weight of the upper counterweight, the transmission mechanism provides power for the second locking mechanism, the second locking mechanism is locked at the same time with the first locking mechanism, the first locking mechanism is unlocked again under force, manual operation is not needed, the hanging and taking efficiency of the counterweight is improved, safety hazards are avoided, and the use cost is reduced.

[0048] It should be noted that, in this document, unless otherwise explicitly specified and limited, the term "connection" or its synonyms should be understood broadly, for example, the "connection" can be fixed connection or detachable connection, can be mechanical connection or electrical connection, can be direct connection or indirect connection through intermediate medium, and can be internal connection of two elements or interaction relationship between two elements, and those skilled in the art can understand the specific meaning of the above-mentioned term in the present application according to the specific situation. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. At the same time, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to the process, method, article or equipment. In addition, "front", "back", "left", "right", "up", "down" in this document are referred to the placement state shown in the drawings.

[0049] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A counterweight automatic hanging and taking locking device, characterized in that, The counterweight automatic hanging and taking locking device comprises an upper counterweight, a lower counterweight, a first locking mechanism, a transmission mechanism and a second locking mechanism, the first locking mechanism is arranged at the middle of both ends of the lower counterweight, the transmission mechanism is arranged at one side of the first locking mechanism, the second locking mechanism is arranged on the lower counterweight, the first locking mechanism is connected with the second locking mechanism through the transmission mechanism, wherein: The first locking mechanism comprises a locking hook, a rotating table and a pressing rod, the rotating table is arranged at the bottom of the locking hook, the pressing rod is arranged at one side of the rotating table, when the bottom of the upper counterweight is pressed to the pressing rod, the rotating table is rotated to drive the locking hook to move, when the bottom of the upper counterweight coincides with the top of the lower counterweight, the locking hook is closed inward, when the upper counterweight is lifted, the bottom of the upper counterweight is separated from the top of the lower counterweight due to the gap between the upper counterweight and the locking hook, and the locking hook is interlocked with the upper counterweight; The transmission mechanism comprises a pin shaft, a first mounting key, a gear shaft and a gear, the gear shaft is arranged at one end of the pin shaft, and the gear is mounted on the gear shaft through the first mounting key; The second locking mechanism comprises a rack, a spring, a locking rod and a locking groove, the spring is arranged at the top of the rack, one end of the locking rod is arranged at the bottom of the rack, and the other end of the locking rod is arranged in the locking groove; The pin shaft is matched with the rotating table, the pin shaft passes through the lower counterweight and the rotating table in sequence, the rotating table is internally provided with a second mounting key, the rotating table is fixedly connected with the pin shaft through the second mounting key, and the locking hook is rotatably connected with the lower counterweight through the pin shaft; The gear is matched with the rack, and the transmission mechanism and the second locking mechanism are in meshing transmission through the gear and the rack; One end of the spring is welded to the top of the lower counterweight, and the other end of the spring is welded to the top of the rack; The bottom of the locking groove is fixedly connected with the bottom of the lower counterweight, and one side of the top of the locking groove is provided with an expansion opening; The top of the locking rod is welded to the bottom of the rack, the bottom of the locking rod is matched with the locking groove, and the bottom of the locking rod is slidably connected with the inside of the locking groove through the expansion opening, when the bottom of the upper counterweight coincides with the top of the lower counterweight, the rotating table is rotated to drive the pin shaft to rotate, the rotating force is transmitted to the gear through the gear shaft, the gear drives the rack and the locking rod to move downward, the spring is stretched downward, and the sliding point of the locking rod in the locking groove moves, when the upper counterweight is lifted, the bottom of the upper counterweight is separated from the top of the lower counterweight, the spring is contracted upward, and the sliding point of the locking rod in the locking groove moves, when the upper counterweight needs to be removed, the bottom of the upper counterweight falls to the top of the lower counterweight, the spring is reset from the stretched state to the contracted state, the rack drives the gear to reverse, and the transmission between the gear shaft and the pin shaft makes the first locking mechanism open.

2. The weight automatic hanging and taking device according to claim 1, characterized by One end of the pin shaft is provided with a fixing groove, one end of the gear shaft is matched with the fixing groove, and the gear shaft is fixedly connected with the pin shaft through the fixing groove.

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