CN204454326U - A kind of gate-type cargo crane of use for laboratory Small Scale Adjustable - Google Patents

Abstract

The utility model relates to a kind of gate-type cargo crane of use for laboratory Small Scale Adjustable, include girder, traveling gear and for the lifting appliance that lifts goods and idler wheel mechanism, girder lower surface is fixed with at least two intubate, and the first lifting mechanism body and the second lifting mechanism body are provided with respectively can change girder and the outer steel pipe of longitudinal height between the first lifting mechanism body and the second lifting mechanism, compared with prior art, the utility model has the advantage of the operation height by the landing of outer steel pipe adjustment goods, girder lower surface is fixed with at least two intubate simultaneously, and by the first straight tube of lifting mechanism and the inserting of intubate phase to change the travel distance of traveling gear on girder and the walking span of traveling gear on girder, when lifting appliance landing goods is to certain altitude, change the lateral extent of landing goods in the movement of main beam guide track through traveling gear, can Multidirectional-moving lifting diverse location object.

Description

A small adjustable gantry crane for laboratory use

technical field

The utility model relates to a gantry crane, in particular to a small adjustable gantry crane for laboratories.

Background technique

Existing cargo hoisting device (cargo crane) has the crane of types such as boom type, rotary type, crane formula, portal type, and every kind of crane has respective uses. Boom and slewing cranes are mostly used on ships, crane cranes are mostly used on ports and ships, and gantry cranes are mostly used in shipyards, warehouses and laboratories, with different models and specifications. At present, the cranes used in the laboratory are mainly gantry cranes, which are divided into large electric gantry cranes (commonly known as driving and bridge cranes) and small manual gantry cranes (commonly known as chain hoists) according to the size of the lifted goods. mobile gantry crane).

Large-scale electric gantry cranes are generally composed of main beams (or carts), end beams, cart operating mechanisms, trolley operating mechanisms, and lifting trolleys. The main beam moves back and forth on the end beams through the cart operating mechanisms, and the lifting The trolley moves left and right on the main beam through the trolley running mechanism, and the goods are hoisted (or lifted) or lowered (or landed) by the hoisting trolley. This large electric gantry crane is easy to operate, quick to take off and land, has a wide range of lifting cargo weight, high take-off and landing height, and is safe and reliable. The disadvantages are complex equipment composition, large space requirements, high initial installation costs, and high equipment maintenance requirements. and high power consumption. Small manual gantry cranes are generally composed of chain hoists, fixed gantry frames, roller mechanisms, and hoist moving guide rails. They have the advantages of simple structure, convenient operation, low cost, and no need to consume extra energy. For example, a patent No. The Chinese utility model patent "Gantry Crane for Containers" of ZL201420117447.2 (announcement number CN203976245U) discloses such a gantry crane for containers, which is characterized in that it includes guide rails and a gantry crane, and the guide rails are set In the container, the gantry crane is arranged on the guide rail, and the gantry crane includes two brackets on the left and right, a gantry crane beam, an electric hoist and rollers, and the gantry crane beam is set on the top of the two brackets on the left and right sides. The electric hoist is slidably arranged on the gantry suspension beam, the rollers are arranged at the bottom of the support, the gantry crane slides on the guide rail through the rollers, the support is a triangular support, and the guide rail is a rectangular channel steel , the guide rail is provided with two, respectively fixed on both sides of the container. This patent can use the sling on the electric hoist of the gantry crane to lift objects, and use the driving power to push the gantry crane forward, so that the required objects can be put into the designated position through the internal gantry crane, which saves labor, time and complete goods. But it has the following disadvantages: 1. The take-off and landing speed of the goods is slow; 2. The take-off and landing height of the goods cannot be changed; Lifting machine for further improvement.

Contents of the invention

The technical problem to be solved by the utility model is to provide a laboratory small adjustable portal hoist that can expand the moving range of the chain hoist on the main beam guide rail and change the lifting height of the bracket at the same time. Cargo aircraft.

The technical solution adopted by the utility model to solve the above-mentioned technical problems is: the small-sized adjustable gantry crane for the laboratory includes a first lifting mechanism body and a second lifting mechanism body and the first lifting mechanism body and the first lifting mechanism body. The main beam connected to the upper end of the second lifting mechanism body, on which a traveling mechanism capable of moving along the main beam is installed, and a lifting device for hoisting goods is connected to the traveling mechanism, and the first lifting Both the mechanism body and the second lifting mechanism body are rotatably connected with a roller mechanism, and it is characterized in that: at least two insertion tubes are fixed on the lower end surface of the main beam, and the first lifting mechanism body and the second lifting mechanism body include There is an inner steel pipe, and an outer steel pipe that can move relative to the inner steel pipe to change the height of the first lifting mechanism body and the second lifting mechanism body relative to the main beam is arranged on the outer casing of the inner steel pipe, and the inner steel pipe and the The corresponding contact surface of the outer steel pipe has a positioning hole and a through hole corresponding to the positioning hole, and at the same time, an adjusting positioning member is inserted in the positioning hole and the through hole to make the inner steel pipe and the outer steel pipe relatively fixed. In addition, The outer steel pipe can also be mated with the insertion tube to change the traveling distance of the traveling mechanism on the main beam.

Further, the positioning holes are located on both sides of the inner steel pipe, and correspondingly, the through holes are located on the side wall of the outer steel pipe. In the state where the inner steel pipe and the outer steel pipe are mutually nested, the through holes can communicate with the positioning holes located on both sides of the inner steel pipe, so as to pass through and fix the adjusting positioning member.

Preferably, the adjusting positioning member is composed of a screw rod and a stop screw for preventing the screw rod from falling off. The inner and outer steel pipes can be fixed conveniently through the mutual cooperation of the screw rod and the stop screw for preventing the screw rod from falling off, so as to maintain the fixed height of the first lifting mechanism body and the second lifting mechanism body.

Further, the roller mechanism includes a roller and a roller support frame, bolt holes are opened on the upper end surface of the roller support frame, and the roller is rotatably connected to the roller support frame. The roller mechanism can rotate 360° around the bolts arranged on the roller support frame, so as to change the movement direction of the gantry crane at any time.

Further, the first lifting mechanism body and the second lifting mechanism body both include an "I"-shaped support body arranged on the lower end surface of the inner steel pipe, and a support body extending through the lower end surface of the support body can pass through the Bolt holes for bolts. In the state where the bolts pass through the bolt holes, the supporting body is connected to the roller mechanism through nuts adapted to the bolts with external threads.

Further, the lifting device is a chain block.

Compared with the prior art, the utility model has the advantage that the first lifting mechanism body and the second lifting mechanism body cooperate with the corresponding outer steel pipes to adjust the position of the first lifting mechanism body and the second lifting mechanism body relative to the main beam. The longitudinal height is the operating height of cargo lifting and landing. At the same time, there are at least two intubation tubes fixed on the lower end of the main beam, and the outer steel pipes of the first lifting mechanism body and the second lifting mechanism body of the lifting mechanism are mated with the intubation tubes to change the traveling mechanism. The walking distance on the main beam is the walking span of the traveling mechanism on the main beam. When the lifting device lifts and lowers the goods to a certain height, the lateral range of the lifting and landing goods is changed by the movement of the walking mechanism on the guide rail of the main beam. Azimuth movement and lifting of objects in different positions, small footprint and relatively low cost, this small adjustable gantry crane can better adapt to the occasions where the working height and working span need to be adjusted, reducing the number of cranes. The number of sets saves cost, and at the same time, it can be disassembled and stored to save floor space.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the structural representation of the roller mechanism in the utility model embodiment;

Fig. 3 is a structural schematic diagram of the separation of the lifting mechanism body and the outer steel pipe in the embodiment of the present invention;

Fig. 4 is a schematic cross-sectional view of the cooperation between the lifting mechanism body and the outer steel pipe in the embodiment of the utility model;

Fig. 5 is a structural schematic diagram of the adjusting positioning member in the embodiment of the utility model.

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 5, the small adjustable gantry crane used in this laboratory includes a first lifting mechanism body 14 and a second lifting mechanism body 14' and is connected with the first lifting mechanism body 14 and the second lifting mechanism body. The main beam 1 connected to the upper end of 14', the main beam 1 is equipped with a traveling mechanism 2 that can move along the main beam 1, and the traveling mechanism 2 is connected with a chain hoist 22 for lifting goods, and the hook of the traveling mechanism 2 is connected to the The chain hoist 22 is connected, and the hook of the chain hoist 22 is connected with the goods. As the traveling mechanism 2 moves left and right on the I-shaped guide rail of the main beam 1, the goods also move left and right within the span range of the main beam 1, and the first lifting Bolts are welded under the mechanism body 14 and the second lifting mechanism body 14', and the roller mechanism 3 is connected to the roller mechanism 3 through the bolts, and the roller mechanism 3 can rotate 360° around the bolt, so as to change the movement direction of the gantry crane at any time. Wherein the roller mechanism 3 includes a roller 19 and a roller support frame 20, the upper end surface of the roller support frame 20 is provided with a bolt hole 201, and the first lifting mechanism body 14 and the second lifting mechanism body 14' all include a bottom surface of the inner steel pipe 16. The supporting body 21 is "I" type, and the lower end surface of the supporting body 21 is extended with a bolt 211 that can pass through the bolt hole 20. When the bolt 211 passes through the bolt hole 201, the nut 30 that is compatible with the bolt 211 is The supporting body 21 is connected with the first lifting mechanism body 14 and the second lifting mechanism body 14 ′, and the roller 19 is rotatably connected to the roller supporting frame 20 to realize the 360° rotation of the roller mechanism 3 in the horizontal direction.

Among them, the lower end surface of the main beam 1 is welded with a cylindrical intubation at intervals, and there are ten cylindrical intubations, namely the first intubation 4, the second intubation 5, the third intubation 6, and the fourth intubation 7. , the fifth intubation tube 8, the sixth intubation tube 9, the seventh intubation tube 10, the eighth intubation tube 11, the ninth intubation tube 12 and the tenth intubation tube 13, and the first lifting mechanism body 14 and the second lifting mechanism body 14' are respectively provided with outer steel pipes 15 that can change the longitudinal height between the main beam 1 and the first lifting mechanism body 14 and the second lifting mechanism body 14', the first lifting mechanism body 14 and the second lifting mechanism body 14' are Including the inner steel pipe 16, in the state where the inner steel pipe 16 and the outer steel pipe 15 are mutually nested, the through hole 151 can communicate with the positioning holes 161 on both sides of the inner steel pipe, so as to provide the screw rod 17 and prevent the screw rod 17 from falling off. The adjustment locator that stop screw 18 forms is worn and fixed. The inner and outer steel pipes can be easily fixed by the cooperation of the screw rod 17 and the stop screw 18 that prevents the screw rod 17 from falling off, so as to maintain the fixed height of the first lifting mechanism body 14 and the second lifting mechanism body 14', which can be changed according to actual needs. The longitudinal height between the main beam 1 and the first lifting mechanism body 14 and the second lifting mechanism body 14'.

The outer steel pipe 15 on the first lifting mechanism body 14 and the second lifting mechanism body 14' can also be mated with the insertion tube to change the span of the traveling mechanism 2 on the main beam 1, that is, when the first lifting mechanism body 14 and the second lifting mechanism body The outer steel pipe 15 on the lifting mechanism body 14' is inserted into the first intubation tube 4 and the tenth intubation tube 13 of the main beam 1. At this time, the working span of the main beam 1 is the largest, that is, the I-shaped guide rail of the traveling mechanism 2 on the main beam 1 The range of upward movement is the largest, when the outer steel pipe 15 on the first lifting mechanism body 14 and the second lifting mechanism body 14' was inserted into the third insertion pipe 6 and the ninth insertion pipe 12 of the main beam, the operating span of the main beam 1 was reduced. Small, that is, the span of the traveling mechanism 2 on the I-shaped guide rail on the main beam 1 is reduced. When the outer steel pipe 15 on the first lifting mechanism body 14 and the second lifting mechanism body 14' is inserted into the fourth insertion tube 7 of the main beam and the eighth intubation tube 11, the operating span of the main beam 1 is further reduced, so different intubation tubes can be inserted into the outer steel pipes 15 on the first lifting mechanism body 14 and the second lifting mechanism body 14' according to the needs of the operating range to obtain different job spans.

Claims (6)

1. A small adjustable gantry crane for a laboratory, comprising a first lifting mechanism body (14) and a second lifting mechanism body (14 ') and the first lifting mechanism body (14) and the second lifting mechanism body (14 ') The main beam (1) connected to the upper end of the two lifting mechanism bodies (14'), the traveling mechanism (2) that can move along the main beam (1) is installed on the described main beam (1), and the traveling mechanism ( 2) A lifting device for hoisting goods is connected to the top, and a roller mechanism (3) is rotatably connected to the bottom of the first lifting mechanism body (14) and the second lifting mechanism body (14'), characterized in that: At least two insertion tubes (4, 5, 6, 7, 8, 9, 10, 11, 12, 13) are fixed on the lower end surface of the main beam (1), and the first lifting mechanism body (14) and the second The elevating mechanism body (14') includes an inner steel pipe (16), and the inner steel pipe (16) is provided with a steel pipe that can move relative to the inner steel pipe to change the first elevating mechanism body (14) and the second elevating mechanism. The outer steel pipe (15) of the main body (14') is higher than the height of the main beam, and the corresponding contact surfaces of the inner steel pipe (16) and the outer steel pipe (15) respectively have positioning holes (161) and the positioning holes (161) the corresponding through hole (151), while inserting in this positioning hole (161) and the through hole (151) the adjusting positioning member that makes described inner steel pipe (16) and outer steel pipe (15) relatively fixed, In addition, the outer steel pipe (15) can also be mated with the insertion tube to change the traveling distance of the traveling mechanism (2) on the main beam (1). 2. The laboratory small adjustable gantry crane according to claim 1, characterized in that the positioning holes (161) are located on both sides of the inner steel pipe (16), correspondingly, the The above-mentioned through hole (151) is located on the side wall of the outer steel pipe (15). 3. The laboratory small-sized adjustable gantry crane according to claim 1, characterized in that the adjustment positioning member is composed of a screw rod (17) and a stop screw (18) to prevent the screw rod (17) from falling off. 4. the small-sized adjustable gantry crane of laboratory according to claim 1, is characterized in that described roller mechanism (3) comprises roller (19) and roller support frame (20), and described roller support frame ( 20) A bolt hole (201) is opened on the upper end surface, and the roller (19) is rotatably connected to the roller support frame (20). 5. The laboratory small adjustable gantry crane according to claim 4, characterized in that the first lifting mechanism body (14) and the second lifting mechanism body (14') all include The "I" type support body (21) on the lower end surface of the inner steel pipe (16), the lower end surface of the support body (21) extends a bolt (211) that can pass through the bolt hole (201). 6. The laboratory small adjustable gantry crane according to any one of claims 1-5, characterized in that the lifting device is a chain block (22).