Gripping apparatus with anti-falling device on double-beam bridge type grab crane

Abstract

The utility model discloses a gripping apparatus with an anti-falling device on a double-beam bridge type grab crane, and relates to the technical field of double-beam bridge type grab cranes. The grab bucket comprises a first grab bucket body, a second grab bucket body is arranged on one side of the first grab bucket body, the bottom of the surface of the first grab bucket body is fixedly connected with an anti-falling mechanism, and the anti-falling mechanism comprises a shell. According to the utility model, the two grab buckets are clamped and locked through the anti-falling mechanism, so that the grab buckets can be reliably prevented from being accidentally opened in the process of hoisting materials by the gripping apparatus, the materials are prevented from falling off, the operation safety is greatly improved, the safety accidents and economic loss caused by the falling off of the materials are reduced, and the anti-falling mechanism is simple in structure, high in reliability and convenient to use. Compared with the prior art, the device has the advantages that the device is simple in structure, few parts are needed, manufacturing and maintenance cost of the device is reduced, fault points are reduced by the simple structure, reliability and stability of the device are improved, and faults are not prone to occurring after long-term use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to double beam bridge type grab crane technical field, especially, relate to a grab utensil with anti -drop device on double beam bridge type grab crane. BACKGROUND

[0002] Double beam bridge type grab crane is in charge of the heavy responsibility of the bulk material in the port, mine, metallurgy, building and many other industries with its large lifting capacity, wide working range and other advantages, and the grab utensil as the key executive component of the crane directly decides the efficiency and quality of the material loading and unloading, in the actual industrial production operation, the working environment of the grab utensil is complex and changeable, and the crane needs to frequently carry out lifting, lowering, translation and braking and other operations in the loading and unloading process of the material, these operations can make the grab utensil vibrate, shake and produce inertial force, which greatly influences the stability of the material in the grab utensil.

[0003] At present, the traditional double beam bridge type grab crane lacks anti -drop device in the process of use, and the accidental drop of the material occurs from time to time, which not only leads to the waste of the material, increases the production cost, but also can cause damage to the equipment and facilities below, more seriously, can greatly threaten the life safety of the on -the -spot staff.

[0004] Therefore, we provide a grab utensil with anti -drop device on double beam bridge type grab crane to solve the above -mentioned problems. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a grab utensil with anti -drop device on double beam bridge type grab crane, through the cooperation of the first grab, the second grab and the anti -drop mechanism, the problem that the double beam bridge type grab crane in the prior art lacks anti -drop device in the process of use and the accidental drop of the material occurs from time to time is solved.

[0006] To solve the above technical problem, the utility model is realized through the following technical schemes.

[0007] The utility model discloses a kind of grab of double-beam bridge type grab crane with anti-falling device, including first grab, the side of the first grab is provided with second grab, the bottom of the surface of the first grab is fixedly connected with anti-falling mechanism, the anti-falling mechanism includes shell, the side of the shell is fixedly connected with first grab, the top of the inner cavity of the shell is fixedly connected with motor, the output of the motor is fixedly connected with rotating rod, the surface of the rotating rod is fixedly connected with cam, the inner cavity of the shell is provided with connecting rod, one end of the connecting rod is fixedly connected with limit block, the side of the limit block and located the surface of connecting rod sleeve spring, the side of the connecting rod is fixedly connected with connecting block, the surface of the connecting rod is fixedly connected with connecting block, the side of the connecting block is fixedly connected with limit post, the side of the second grab is provided with limit hole for cooperation with limit post, first grab and second grab cooperate with each other, material is grabbed, improve the conveying effect of material, shell is arranged at the side of first grab, the transmission structure of anti-falling mechanism is installed in the inside of shell, guarantee the stability of shell internal structure, the structure of reciprocating motion is realized using cam and spring, first grab and second grab can be quickly clamped and locked, guarantee the stability of first grab and second grab during material clamping and conveying, reach the function of effectively preventing falling.

[0008] The utility model further sets up, the both sides of the top of the first grab are fixedly connected with first connecting piece, the both sides of the top of the second grab are fixedly connected with second connecting piece, and the first connecting piece and the second connecting piece are movably connected with movable rod, and first connecting piece, second connecting piece and movable rod connect the first grab and the second grab, can realize the clamping action of the first grab and the second grab, guarantee the stability of the first grab and the second grab installation.

[0009] The utility model further sets up, the surface of the movable rod is sleeved with connecting seat, the both sides of the top of the connecting seat are fixedly connected with lug, and connecting seat and lug can install the grab on crane and hoist, reach the purpose of improving installation convenience.

[0010] The utility model further sets up, the top of the first grab and the top of the second grab are fixedly connected with connecting lug, the connecting lug is symmetrically arranged between the connecting lug, the connecting lug is connected with the first grab and the second grab, and the other end is connected with lifting mechanism through movable arm, realizes the clamping action of the first grab and the second grab.

[0011] The utility model further sets up, the top of the surface of the shell is provided with access panel, and the four corners of the surface of the access panel are provided with fastener, and the setting of access panel and fastener facilitates the access to the internal structure of the shell, improves the convenience of maintenance personnel to overhaul.

[0012] The present invention is further configured such that the bottom of the rotating rod is movably connected to the inner wall of the housing through a bearing, one side of the cam contacts the limiting block, and the cam can squeeze the limiting block during rotation to achieve the transmission effect.

[0013] The present invention is further configured such that a movable hole is provided on one side of the first grab bucket, and one side of the connecting rod passes through the movable hole into the inner cavity of the first grab bucket. The connecting rod extends into the inner cavity of the first grab bucket through the movable hole, which facilitates the installation of the connecting rod and ensures the stability of the installation of the connecting rod.

[0014] The present invention is further configured such that a position sensor is provided between the first grab and the second grab, and the output end of the position sensor is electrically connected to the input end of the motor. The position sensor is used to detect the closed state of the first grab and the second grab, so as to achieve the effect of automatically controlling the start and stop of the motor.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model uses an anti-detachment mechanism to lock the two grab buckets together, which can reliably prevent the grab buckets from opening accidentally during the material lifting process, ensuring that the material will not fall off, greatly improving the safety of the operation, reducing safety accidents and economic losses caused by material falling off. The anti-detachment mechanism has a simple structure, high reliability, and requires fewer parts, which reduces the manufacturing and maintenance costs of the equipment. At the same time, this simple structure reduces the number of failure points, improves the reliability and stability of the device, and is not prone to failure after long-term use.

[0017] 2. This utility model starts the motor, which drives the rotating rod to rotate. The rotating rod drives the cam to rotate. One side of the cam contacts the limiting block and applies pressure to the limiting block. The limiting block compresses the spring and moves the connecting rod. The connecting rod moves the connecting block and the connecting block moves the limiting post. The limiting post extends into the inner cavity of the limiting hole, thereby locking the first grab bucket and the second grab bucket together, ensuring the stability of the material clamping and conveying process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a perspective view of a grab with an anti-fall-off device on a double-girder bridge grab crane.

[0020] Figure 2 This is a bottom-view perspective view of a grab gripper with an anti-fall-off device on a double-girder bridge grab crane.

[0021] Figure 3 It is a perspective view of the connecting structure of the first grab bucket and the second grab bucket in the grabber with the anti-falling device on the double-beam bridge grab bucket crane.

[0022] Figure 4 It is a sectional view of the first grab bucket in the grabber with the anti-falling device on the double-beam bridge grab bucket crane.

[0023] Figure 5 It is a sectional view of the shell in the grabber with the anti-falling device on the double-beam bridge grab bucket crane.

[0024] In the drawings: 1, the first grab bucket; 2, the second grab bucket; 3, the anti-falling mechanism; 301, the shell; 302, the motor; 303, the rotating rod; 304, the cam; 305, the connecting rod; 306, the limiting block; 307, the spring; 308, the connecting block; 309, the limiting column; 310, the limiting hole; 4, the first connecting piece; 5, the second connecting piece; 6, the movable rod; 7, the connecting seat; 8, the hanging lug; 9, the connecting lug; 10, the maintenance plate; 11, the movable hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be described below with reference to the drawings in the embodiments of the utility model. The described embodiments are only some of the embodiments of the utility model, not all of the embodiments.

[0026] Embodiment one

[0027] Please refer to Figures 1-5 The utility model discloses a grabber with an anti-falling device on a double-beam bridge grab bucket crane, which comprises a first grab bucket 1, the first grab bucket 1 is provided with a second grab bucket 2 on one side, and the bottom of the surface of the first grab bucket 1 is fixedly connected with an anti-falling mechanism 3. The anti-falling mechanism 3 comprises a shell 301, one side of the shell 301 is fixedly connected with the first grab bucket 1, the top of the inner cavity of the shell 301 is fixedly connected with a motor 302, the output end of the motor 302 is fixedly connected with a rotating rod 303, the surface of the rotating rod 303 is fixedly connected with a cam 304, the inner cavity of the shell 301 is provided with a connecting rod 305, one end of the connecting rod 305 is fixedly connected with a limiting block 306, the side of the limiting block 306 and located on the surface of the connecting rod 305 is sleeved with a spring 307, one side of the connecting rod 305 penetrates the inner cavity of the shell 301 and extends to the inner cavity of the first grab bucket 1, the surface of the connecting rod 305 is fixedly connected with a connecting block 308, one side of the connecting block 308 is fixedly connected with a limiting column 309, and one side of the second grab bucket 2 is provided with a limiting hole 310 used in cooperation with the limiting column 309.

[0028] Specifically, the first grab bucket 1 and the second grab bucket 2 cooperate with each other to grab the material, improve the conveying effect of the material, the shell 301 is arranged on one side of the first grab bucket 1, the transmission structure of the anti-falling mechanism 3 is arranged in the shell 301, the stability of the internal structure of the shell 301 is ensured, the cam 304 and the spring 307 are used to realize the reciprocating structure, the first grab bucket 1 and the second grab bucket 2 can be quickly clamped and locked, the stability of the first grab bucket 1 and the second grab bucket 2 during the material clamping and conveying process is ensured, and the effective anti-falling function is achieved.

[0029] Embodiment two

[0030] Please refer to Figures 1-5 On the basis of embodiment one, the first connecting piece 4 is fixedly connected to the two sides of the top of the first grab bucket 1, the second connecting piece 5 is fixedly connected to the two sides of the top of the second grab bucket 2, the movable rod 6 is movably connected between the first connecting piece 4 and the second connecting piece 5, the connecting seat 7 is arranged on the surface of the movable rod 6, the lug 8 is fixedly connected to the two sides of the top of the connecting seat 7, the connecting lug 9 is fixedly connected to the top of the first grab bucket 1 and the top of the second grab bucket 2, the connecting lug 9 is symmetrically arranged between the first grab bucket 1 and the second grab bucket 2, the maintenance plate 10 is arranged on the top of the surface of the shell 301, the fastener is arranged at the four corners of the surface of the maintenance plate 10, the bottom of the rotating rod 303 is movably connected to the inner wall of the shell 301 through the bearing, one side of the cam 304 is in contact with the limiting block 306, the movable hole 11 is arranged on one side of the first grab bucket 1, the connecting rod 305 is arranged on one side of the first grab bucket 1 and extends into the inner cavity of the first grab bucket 1 through the movable hole 11, the position sensor is arranged between the first grab bucket 1 and the second grab bucket 2, and the output end of the position sensor is electrically connected to the input end of the motor 302.

[0031] Specifically, the first connecting piece 4, the second connecting piece 5 and the movable rod 6 connect the first grab bucket 1 and the second grab bucket 2, can realize the clamping action of the first grab bucket 1 and the second grab bucket 2, ensure the stability of the installation of the first grab bucket 1 and the second grab bucket 2, the connecting seat 7 and the lug 8 can install the grabber on the crane for hoisting, achieve the purpose of improving the installation convenience, the connecting lug 9 is connected with the first grab bucket 1 and the second grab bucket 2, and the other end is connected with the lifting mechanism through the movable arm to realize the grabbing action of the first grab bucket 1 and the second grab bucket 2, the maintenance plate 10 and the fastener are arranged, which facilitates the maintenance of the internal structure of the shell 301, improves the convenience of the maintenance personnel for the maintenance, one side of the cam 304 is in contact with the limiting block 306, the cam 304 can extrude the limiting block 306 during rotation, and the transmission effect is achieved, the connecting rod 305 extends into the inner cavity of the first grab bucket 1 through the movable hole 11, which facilitates the installation of the connecting rod 305 and ensures the stability of the installation of the connecting rod 305, and the position sensor is used for detecting the closed state of the first grab bucket 1 and the second grab bucket 2, and the effect of automatically controlling the start and stop of the motor 302 is achieved.

[0032] The working principle of the utility model is: through position sensor detection first grab bucket 1 and second grab bucket 2's closed state, first grab bucket 1 and second grab bucket 2 complete the action of grabbing, position sensor sends signal to motor 302, starts motor 302, motor 302 drives rotary lever 303 to rotate, rotary lever 303 drives cam 304 to rotate, one side of cam 304 contacts to limit block 306, carries out pressure to limit block 306, limit block 306 drives spring 307 compression at the same time drives connecting rod 305 to move, connecting rod 305 drives connecting block 308 to move, connecting block 308 drives limit post 309 to move, limit post 309 extends to the inner chamber of limit hole 310, and then can first grab bucket 1 and second grab bucket 2 are jointed, first grab bucket 1 and second grab bucket 2 are in the process of conveying when clamping material, through anti -unhooking mechanism 3 to its jointed limit, has guaranteed the stability in the process of material conveying.

[0033] The above disclosed preferred embodiments of the utility model are only used to help the description of the utility model, and the preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation mode, and the description selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model.

Claims

1. A grab with anti-drop device on a double-beam bridge-type grab crane, comprising a first grab (1), characterized in that, The first grab bucket (1) is provided with a second grab bucket (2) on one side, and the bottom surface of the first grab bucket (1) is fixedly connected with an anti-falling mechanism (3). The anti-falling mechanism (3) comprises an outer shell (301), one side of which is fixedly connected with the first grab bucket (1); a motor (302) is fixedly connected to the top of the inner cavity of the outer shell (301); the output end of the motor (302) is fixedly connected with a rotating rod (303); the surface of the rotating rod (303) is fixedly connected with a cam (304); a connecting rod (305) is arranged through the inner cavity of the outer shell (301); one end of the connecting rod (305) is fixedly connected with a limiting block (306); the side of the limiting block (306) and the surface of the connecting rod (305) are sleeved with a spring (307); one side of the connecting rod (305) penetrates through the inner cavity of the outer shell (301) and extends into the inner cavity of the first grab bucket (1); the surface of the connecting rod (305) is fixedly connected with a connecting block (308); one side of the connecting block (308) is fixedly connected with a limiting column (309); one side of the second grab bucket (2) is provided with a limiting hole (310) matched with the limiting column (309).

2. A double-beam bridge grab crane with a grab with a fall-prevention device according to claim 1, characterized in that: The top of the first grab bucket (1) is fixedly connected with a first connecting piece (4) on both sides; the top of the second grab bucket (2) is fixedly connected with a second connecting piece (5) on both sides; and the first connecting piece (4) and the second connecting piece (5) are movably connected with a movable rod (6).

3. A double-beam bridge grab crane with a grab with a fall-prevention device according to claim 2, characterized in that: The surface of the movable rod (6) is sleeved with a connecting seat (7), and the top of the connecting seat (7) is fixedly connected with a hanging ear (8) on both sides.

4. A double-beam bridge grab crane with a grab with a fall-prevention device according to claim 1, characterized in that: The top of the first grab bucket (1) and the top of the second grab bucket (2) are fixedly connected with a connecting ear (9), and the connecting ears (9) are symmetrically arranged.

5. A double-beam bridge grab crane with a grab with a fall-prevention device according to claim 1, characterized in that: The top of the surface of the outer shell (301) is provided with an access panel (10), and the four corners of the surface of the access panel (10) are provided with fasteners.

6. A double-beam bridge grab crane with a grab with a fall-prevention device according to claim 1, characterized in that: The bottom of the rotating rod (303) is movably connected with the inner wall of the outer shell (301) through a bearing, and one side of the cam (304) is in contact with the limiting block (306).

7. A double-beam bridge grab crane with a grab with a fall-prevention device according to claim 1, characterized in that: One side of the connecting rod (305) penetrates through the inner cavity of the first grab bucket (1) through the movable hole (11).

8. A double-beam bridge grab crane with a grab with a fall-prevention device according to claim 1, characterized in that: The first grab bucket (1) and the second grab bucket (2) are provided with a position sensor, and the output end of the position sensor is electrically connected with the input end of the motor (302).

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