Crown block small box clamp anti-falling device

Abstract

The invention relates to the technical field of small box fixtures, and discloses a crown block small box fixture anti-disengaging device which comprises a torsion head assembly and an anti-disengaging assembly, the torsion head assembly comprises a mounting base and a sleeve head, clamping grooves are formed in the two ends of a fixing base, a fixing assembly is arranged between the clamping grooves and a clamping shaft, the fixing assembly can clamp the end of the clamping shaft, and the anti-disengaging assembly is connected with the torsion head assembly. The anti-disengaging assembly comprises a first hinge part, a second hinge part and a driving piece, the first hinge part is arranged at one end of the mounting base, the second hinge part is arranged at one end of the first hinge part, the driving piece is hinged to one end of the first hinge part, and the output end of the driving piece is hinged to the second hinge part; the driving piece pushes the second hinge part to rotate in the first hinge part, and when the second hinge part rotates to be horizontal, the small box clamp is lifted; the end portion of the clamping shaft is clamped through the fixing assembly, double anti-falling of the small box clamp is achieved, falling of the small box clamp caused by failure of a single anti-falling structure is avoided, and the safety of the small box clamp anti-falling device is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of small box clamping devices, and particularly relates to a crown block small box clamping device anti-falling device. BACKGROUND

[0002] In modern aluminum electrolysis production, the small box clamping device is a key anode rod fastening component, and its core function is to stably fix the anode rod on the busbar frame hook seat of the plant. The prior art discloses (publication number: CN207121646U) an anode bus small box clamping device. The small box clamping device comprises two clamping assemblies, a clamping shaft and a control screw rod. The clamping assemblies rotate in opposite directions around the clamping shaft. The clamping assembly comprises a clamping rod and two clamping arms. The clamping rod is rotatably arranged between the two clamping arms. The clamping rod is arranged on the first end of the clamping arm. The clamping shaft penetrates the second end of the clamping arm. The control screw rod penetrates the clamping rod and is in threaded cooperation with the clamping rod. The first end of the clamping shaft is provided with a first clamping groove. The first clamping groove is provided with a first clamping spring. The first sleeve is sleeved on the clamping shaft and located between the first clamping spring and the clamping arm. By arranging the sleeve on the two ends of the clamping shaft, direct contact between the clamping shaft and the hook is avoided, and the phenomenon of electric discharge sparking is prevented. The problem of deformation and distortion of the clamping shaft is effectively solved, the maintenance cost is reduced, and the reliability of the work is improved.

[0003] In the electrolysis operation process, the anode rod will be gradually consumed due to the continuous electrochemical reaction. When the consumption reaches the preset threshold, a new anode must be replaced to ensure production continuity and efficiency. However, during the transfer process, the small box clamping device needs to be frequently loosened and tightened and transferred, which leads to wear, processing quality defects, or vehicle vibration, etc. Therefore, during the replacement operation, falling accidents caused by insecure small box clamping devices occur, which seriously endangers the personal safety of workers. Therefore, we propose a crown block small box clamping device anti-falling device to solve the above problems. SUMMARY

[0004] The present application aims to provide a crown block small box clamping device anti-falling device to solve the problem of falling accidents caused by insecure small box clamping devices during the replacement operation.

[0005] To achieve the above object, the application adopts the following technical scheme: A crown block fixture anti-falling device for a crown, comprising a twist head assembly and an anti-falling assembly arranged on the twist head assembly, the twist head assembly comprising a mounting seat and a sleeve head rotatably mounted between the mounting seat, the sleeve head being capable of being connected with a lead screw of the crown block fixture and driving the lead screw to rotate, the mounting seat having a clamping groove at each end for clamping an end of a clamping shaft of the crown block fixture, and a fixing assembly being arranged between the clamping groove and the clamping shaft and capable of clamping the end of the clamping shaft, the anti-falling assembly comprising a first hinged part, a second hinged part and a driving member, the first hinged part being arranged at one end of the mounting seat away from the anode guide rod, the second hinged part being hingedly arranged at one end of the first hinged part, and the driving member being hingedly arranged at one end of the first hinged part away from the mounting seat, and the output end of the driving member being hingedly connected with the second hinged part, the driving member driving the second hinged part to rotate in the first hinged part, and the crown block fixture being lifted when the second hinged part is rotated to be horizontal.

[0006] The beneficial effects of the present scheme are as follows: the second hinged part is driven by the driving member to rotate in the first hinged part, and the crown block fixture is lifted when the second hinged part is rotated to be horizontal and is located below the crown block fixture, the crown block fixture after being unlocked is lifted, and the left and right deviation and shaking of the crown block fixture are limited by the clamping groove, thereby improving the stability of the crown block fixture during movement, and the end of the clamping shaft is clamped by the fixing assembly, thereby achieving double anti-falling of the crown block fixture, avoiding falling of the crown block fixture due to failure of a single anti-falling structure, and further improving the safety of the crown block fixture anti-falling device.

[0007] Preferably, as an improvement, the mounting seat is in the shape of a V, and the opposite ends of the mounting seat are provided with abutting blocks, and the crown block fixture can abut against the abutting blocks.

[0008] The beneficial effects are as follows: with frequent clamping of the clamping groove and the clamping shaft, the inner wall of the clamping groove is worn, and there is a gap between the clamping shaft and the inner wall of the clamping groove, thereby causing the clamping shaft to frequently collide with and be worn by the inner wall of the clamping groove during start and stop, and reducing the service life of the clamping shaft, while in the present scheme, the crown block fixture is clamped by the abutting blocks and the second hinged part, and shaking of the crown block fixture during start and stop is avoided, thereby reducing the wear of the clamping shaft and the inner wall of the clamping groove and improving the service life of the clamping shaft.

[0009] Preferably, as an improvement, the driving member is any one of an electric push rod, a hydraulic telescopic rod or a pneumatic telescopic rod.

[0010] Preferably, as an improvement, each fixing assembly comprises a lifting rod, two locking rods and a clamping block, the fixing base is symmetrically provided with rotating grooves communicated with the clamping grooves, each rotating groove is provided with a supporting rod, two clamping blocks are respectively rotatably installed on the outer wall of the corresponding supporting rod, a first reset member is arranged between each clamping block and the inner wall of the rotating groove, the fixing base is provided with a lifting groove, the lifting rod is slidably installed in the lifting groove, a communicating groove is vertically arranged between the lifting groove and the two rotating grooves, the two locking rods are symmetrically arranged at the end of the locking rod close to the clamping groove, and the two locking rods are respectively located in the corresponding lifting groove, the lifting rod and the inner wall of the lifting groove are provided with a plurality of second reset members, the end of each clamping block close to the lifting rod is provided with a locking groove, the two locking rods can be inserted into the corresponding locking groove, a through hole is penetratingly arranged between the lifting groove and the clamping groove, the end of the lifting rod close to the clamping groove is provided with an unlocking block, and the unlocking block is located in the through hole and can abut against the outer wall of the clamping shaft.

[0011] Preferably, as an improvement, the clamping block is provided in a C shape and comprises a triggering portion, a vertical portion and an abutting portion, the triggering portion and the abutting portion are respectively located at the two ends of the vertical portion, the cross section of the triggering portion is provided in a triangular shape, the inclined surface of the triggering portion is in contact with the clamping shaft, the cross section of the abutting portion is provided in a circular arc shape, and the end of the abutting portion is rounded, and the end of the abutting portion can be in contact with the outer wall of the clamping shaft.

[0012] The beneficial effects are that: in the process of the end of the clamping shaft entering the clamping groove, the clamping shaft is in contact with the triggering portion of the clamping block, so that the vertical portion of the clamping block rotates around the supporting rod, so that the abutting portion of the clamping block rotates into the clamping groove, and in the process of the rotation of the clamping block, the locking rod is inserted into the locking groove under the action of the second reset member, so as to fix the clamping block, and then the clamping shaft is supported by the abutting portion in a fixed state, so as to avoid the clamping shaft from falling out of the clamping groove, improve the safety of the small box fixture during transfer, and when the small box fixture is in abutment with the hook base, the clamping shaft first abuts against the hook base, and as the mounting base further descends, the clamping shaft is separated from the abutting portion of the clamping block, until the clamping shaft abuts against the unlocking block, so that the lifting rod rises in the lifting groove, and then the locking rod exits the locking groove, so that the clamping block rotates under the action of the first reset member, so that the triggering portion of the clamping block rotates into the clamping groove, and the abutting portion of the clamping block rotates into the rotating groove, and then the mounting base rises, the clamping shaft is in contact with the triggering portion, and the entire clamping block rotates into the rotating groove, so that the clamping shaft exits the clamping groove, and finally the clamping block rotates under the action of the first reset member, so that the triggering portion rotates into the clamping groove again, facilitating the clamping of the small box fixture next time.

[0013] Preferably, as an improvement, the first reset member is provided in a torsional spring shape, and each first reset member is sleeved on the outer wall of the corresponding supporting rod.

[0014] Preferably, as an improvement, the second reset element is configured as a tension spring, and each second reset element is respectively sleeved on the outer wall of the corresponding locking rod. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the anti-detachment device for the small box clamp according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of the mounting base according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the fixing component supporting the clamping shaft according to an embodiment of the present invention; Figure 4 This is a structural schematic diagram of the fixed component in the unlocked state according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the clamping shaft exiting the slot according to an embodiment of the present invention. Detailed Implementation

[0016] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: mounting base 1, sleeve head 2, small box clamp 3, lead screw 4, clamping shaft 5, slot 6, rotating slot 7, support rod 8, trigger part 9, vertical part 10, abutment part 11, first reset part 12, lifting slot 13, lifting rod 14, connecting slot 15, second reset part 16, locking slot 17, unlocking block 18, first hinge part 19, second hinge part 20, driving part 21, anode guide rod 22, hook seat 23, abutment block 24, locking rod 25.

[0017] Example The basic implementation examples are as follows: Figures 1-5 As shown, Figure 1 The overhead crane small box clamp anti-detachment device shown includes a twisting head assembly and an anti-detachment component disposed at the front end of the twisting head assembly. The twisting head assembly includes a mounting base 1 and a sleeve 2 rotatably mounted between the mounting bases 1. The sleeve 2 can engage with the lead screw 4 of the small box clamp 3 and drive the lead screw 4 to rotate. The mounting base 1 is U-shaped, and an abutment block 24 is fixedly installed between the mounting bases 1. The upper end of the small box clamp 3 can abut against the abutment block 24. The lower ends of both sides of the fixed base are provided with slots 6 that engage with the ends of the clamping shaft 5 of the small box clamp 3. Fixing components are provided between the slots 6 and the clamping shaft 5, and the fixing components can clamp the ends of the clamping shaft 5. Figure 2The fixed assembly shown includes a lifting rod 14, two locking rods 25 and clamping blocks, the fixing seat is symmetrically provided with rotating grooves 7 communicated with the clamping grooves 6 on the left and right sides, each rotating groove 7 is fixedly provided with a supporting rod 8, two clamping blocks are respectively rotatably installed on the outer wall of the corresponding supporting rod 8, the clamping block is provided in a C shape and includes a trigger part 9, a vertical part 10 and an abutting part 11, the trigger part 9 and the abutting part 11 are respectively located at both ends of the vertical part 10, the cross section of the trigger part 9 is provided in a triangular shape, and the inclined surface of the trigger part 9 is in contact with the clamping shaft 5, the cross section of the abutting part 11 is provided in a circular arc shape, and the end of the abutting part 11 is rounded, and the end of the abutting part 11 can be in contact with the outer wall of the clamping shaft 5, and each clamping block is provided with a first reset member 12 between the end and the inner wall of the rotating groove 7, the first reset member 12 is provided as a torsion spring, and each first reset member 12 is sleeved on the outer wall of the corresponding supporting rod 8, the fixing seat is provided with a lifting groove 13, the lifting rod 14 is slidably installed in the lifting groove 13, and the lifting groove 13 and the two rotating grooves 7 are vertically provided with a communication groove 15, the two locking rods 25 are symmetrically fixedly installed on the left and right sides of the lower end of the locking rod 25, and the two locking rods 25 are respectively slidably installed in the corresponding lifting groove 13, the lower end of each locking rod 25 is rounded, the lifting rod 14 and the inner wall of the lifting groove 13 are provided with a plurality of second reset members 16, in this embodiment, the second reset members 16 are provided as 2, the second reset members 16 are provided as tension springs, and each second reset member 16 is sleeved on the outer wall of the corresponding locking rod 25, the upper end of each clamping block is provided with a locking groove 17, and the two locking rods 25 can be inserted into the corresponding locking groove 17, a through hole is provided between the upper end of the lifting groove 13 and the clamping groove 6, the lower end of the lifting rod 14 is fixedly provided with an unlocking block 18, the unlocking block 18 is located in the through hole, and the lower end of the unlocking block 18 extends into the clamping groove 6 and can abut against the outer wall of the clamping shaft 5.

[0018] As shown in Figure 1 The anti-disengagement assembly includes a first hinge part 19, a second hinge part 20 and a driving member 21, the first hinge part 19 is fixedly installed on the front end of the mounting seat 1, the first hinge part 19 is provided in a T shape, the second hinge part 20 is hingedly installed on the lower end of the first hinge part 19, the driving member 21 is hingedly installed on the front end of the first hinge part 19, and the output end of the driving member 21 is hingedly connected with the front end of the second hinge part 20, the driving member 21 can push the second hinge part 20 to rotate in the first hinge part 19, the driving member 21 is provided as any one of an electric push rod, a hydraulic telescopic rod or a pneumatic telescopic rod, and the small box clamp 3 is lifted when the second hinge part 20 is rotated to be horizontal.

[0019] The specific implementation process is as follows: The mounting seat 1 is lowered to make the clamping groove 6 abut against the clamping shaft 5, and the end of the clamping shaft 5 enters the clamping groove 6, as Figure 3The clamping shaft 5 shown is in contact with the inclined surface of the clamping block trigger part 9, so that the vertical part 10 of the clamping block rotates around the support rod 8, so that the abutting part 11 of the clamping block rotates into the clamping groove 6, and in the process of rotating the clamping block, the locking rod 25 is inserted into the locking groove 17 under the action of the second reset member 16, thereby fixing the clamping block, and then supporting the clamping shaft 5 through the state-fixed abutting part 11, avoiding the clamping shaft 5 from falling out of the clamping groove 6, improving the safety of the small box fixture 3 during transfer, at this time the sleeve head 2 is connected with the lead screw 4 of the small box fixture 3, and the second hinge part 20 is driven to rotate in the first hinge part 19 by the driving member 21, and the sleeve head 2 is rotated to unlock the small box fixture 3, when the second hinge part 20 is rotated to be horizontal and located below the small box fixture 3, the unlocked small box fixture 3 can be lifted, the end of the clamping shaft 5 is clamped by the fixing assembly, the double anti-falling of the small box fixture 3 is realized, the single anti-falling structure is avoided to fail to cause the small box fixture 3 to fall off, and the safety of the small box fixture 3 anti-falling device is further improved.

[0020] When the small box fixture 3 after the polarity change needs to be connected with the hook seat 23, the clamping shaft 5 first abuts against the hook seat 23, then the second hinge part 20 is separated from the small box fixture 3 by the driving member 21, and as the mounting seat 1 further descends, as shown in Figure 4 The clamping shaft 5 shown is separated from the abutting part 11 of the clamping block, until the clamping shaft 5 abuts against the unlocking block 18, so that the lifting rod 14 rises in the lifting groove 13, and then the locking rod 25 exits the locking groove 17, so that the clamping block rotates under the action of the first reset member 12, so that the trigger part 9 of the clamping block rotates into the clamping groove 6, and the abutting part 11 of the clamping block rotates into the rotating groove 7, at this time the sleeve head 2 is rotated to fix the small box fixture 3 with the anode guide rod 22, and then the mounting seat 1 is raised, as shown in Figure 5 The clamping shaft 5 shown is in contact with the trigger part 9, and the entire clamping block is rotated into the rotating groove 7, so that the clamping shaft 5 exits the clamping groove 6, and finally the clamping block rotates under the action of the first reset member 12, so that the trigger part 9 rotates into the clamping groove 6 again, facilitating the clamping of the small box fixture 3 next time.

[0021] The above is only an embodiment of the present application, and the specific technical solutions and / or common knowledge of the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the patent. The protection scope claimed in this application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A crown block small box clamp anti-falling device, characterized in that: The twist head assembly comprises a mounting seat and a sleeve head rotatably mounted between the mounting seat. The sleeve head can be connected with the lead screw of the small box clamp and drive the lead screw to rotate. The mounting seat is provided with a clamping groove at each end, which is connected with the end of the clamping shaft of the small box clamp. The fixing assembly is arranged between the clamping groove and the clamping shaft, which can clamp the end of the clamping shaft. The anti-disengagement assembly comprises a first hinge part, a second hinge part and a driving member. The first hinge part is arranged at one end of the mounting seat away from the anode guide rod. The second hinge part is hingedly mounted at one end of the first hinge part. The driving member is hingedly mounted at one end of the first hinge part away from the mounting seat, and the output end of the driving member is hingedly connected with the second hinge part. The driving member drives the second hinge part to rotate in the first hinge part. When the second hinge part is rotated to be horizontal, the small box clamp is lifted.

2. The overhead hoist small box clamp anti-drop device according to claim 1, characterized in that: The mounting seat is provided with a V-shaped groove, and the opposite ends of the mounting seat are provided with abutting blocks. The small box clamp can abut against the abutting blocks.

3. The overhead hoist trolley clip guard anti-drop device of claim 2, wherein: The driving member is any one of an electric push rod, a hydraulic telescopic rod or a pneumatic telescopic rod.

4. The overhead hoist small box clamp anti-drop device according to claim 3, characterized in that: Each fixing assembly comprises a lifting rod, two locking rods and a clamping block. The mounting seat is symmetrically provided with a rotating groove in communication with the clamping groove. Each rotating groove is provided with a supporting rod. Two clamping blocks are rotatably mounted on the outer wall of the corresponding supporting rod. A first reset member is arranged between each clamping block and the inner wall of the rotating groove. The mounting seat is provided with a lifting groove. The lifting rod is slidingly mounted in the lifting groove. A communication groove is vertically arranged between the lifting groove and the two rotating grooves. Two locking rods are symmetrically arranged at one end of the locking rod close to the clamping groove, and the two locking rods are respectively located in the corresponding lifting groove. The lifting rod and the inner wall of the lifting groove are provided with a plurality of second reset members. The end of each clamping block close to the lifting rod is provided with a locking groove. The two locking rods can be inserted into the corresponding locking groove. A through hole is provided between the lifting groove and the clamping groove. The end of the lifting rod close to the clamping groove is provided with an unlocking block, which is located in the through hole and can abut against the outer wall of the clamping shaft.

5. The overhead hoist small box clamp anti-drop device according to claim 4, characterized in that: The clamping block is C-shaped and comprises a trigger part, a vertical part and an abutting part. The trigger part and the abutting part are respectively located at both ends of the vertical part. The cross section of the trigger part is triangular, and the inclined surface of the trigger part is in contact with the clamping shaft. The cross section of the abutting part is arc-shaped, and the end of the abutting part is rounded. The end of the abutting part can be in contact with the outer wall of the clamping shaft.

6. The hoist pocket clamp anti-drop device according to claim 5, characterized in that: The first reset member is a torsion spring, and each first reset member is sleeved on the outer wall of the corresponding supporting rod.

7. The crown block small box clamp anti-falling device according to claim 6, characterized in that: The second reset member is a tension spring, and each second reset member is sleeved on the outer wall of the corresponding locking rod.

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