The material distributing machine of three arm joint combination relative motions
Technical field
The utility model relates to a kind of concrete distributing construction machinery.
Background technology
Concrete spreader is the apparatus for distributing that the concrete pumping pipe end carries out concrete pouring, it can improve effectively concreting efficient, improving the quality of concreting, promote civilized construction, is indispensable corollary equipment in the concrete pumping operation.
Known concrete spreader divides two kinds according to the action scheme of jib: a kind of be jib can before and after stretch, jib can pitching in vertical plane between relatively, but in horizontal plane, there is not relative motion, slew gear in the complete machine horizontal plane has only one, is located at the root and the body of the tower upper bracket junction of jib; Another pattern is that complete machine has two joint jibs, and each jib all can not pitching, can only turn round in horizontal plane, and two slew gears are arranged, and can only do relative motion between the jib in horizontal plane.
At present, in building constructions such as high-speed railway and Line for Passenger Transportation, often run into the concreting of large scale prefabricated box beam more than 30 meters, in order to ensure concrete pouring quality, unit in charge of construction racks one's brains when selecting material distributing machine, and in use all there is very big defective in the material distributing machine of existing two kinds of patterns, and first kind of material distributing machine jib can not the pitching operation, height to the operating area has certain requirement, and material distributing machine just can't be used when the operation zone is low; Second kind of material distributing machine is because jib can only horizontal balance, and when the scope of operation was low, the normal throw of concreting was too big, and concrete is easy to generate segregation, can not guarantee the quality of concreting.
The utility model content
In order to overcome the deficiency that has material distributing machine now, the utility model provides a kind of material distributing machine of three arms joint combination relative motion, and the jib that solve traditional material distributing machine can not carry out pitching and the interior technical problem of turning round two kinds of motions of horizontal plane in the vertical plane simultaneously.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of material distributing machine of three arms joint combination relative motion, comprise the body of the tower bearing and with the parallel connected boom system of concrete pumping pipeline, the head end of boom system is rotationally connected by the first horizontal rotation mechanism and body of the tower bearing horizontal rotation, the concrete pumping pipeline comprises feed pipe and discharging mouth, it is characterized in that: above-mentioned boom system is by big arm, middle arm and three sections relative motions of forearm are connected from beginning to end and form, the end of big arm is rotationally connected by the head end horizontal rotation of the second horizontal rotation mechanism and middle arm, the end of middle arm is rotationally connected by the head end of luffing mechanism and forearm, and the end of forearm is connected with the discharging mouth.
The described second horizontal rotation mechanism comprises that one is fixedly connected on motor, reductor and the transmission mechanism of big arm end, and the output of reductor drives and connects the tooth axle, the pivoting support during the tooth axle drives again and is fastened on the arm.
Described luffing mechanism comprises oil cylinder, centering block and push rod, the bottom of arm during wherein oil cylinder one end is hinged on, the other end is connected with the rear end of centering block, and the middle and lower part of centering block is connected with the rear end of push rod, the end of arm during the front end of centering block is hinged on, the front end of push rod is connected with the head end of forearm again.
Described tooth axle is supported on the big arm by bearing and sleeve.
The beneficial effects of the utility model are as follows:
The means that the utility model adopts horizontal rotation to combine with pitching between the material distributing machine jib, horizontal operation and vertical operation are organically combined, the advantage of melting existing two kinds of material distributing machine, improved the single operation form of material distributing machine jib, can fundamentally solve the drawback of the material distributing machine existence of above-mentioned two kinds of patterns, neither be subjected to the restriction of site operation region height when making material distributing machine work, can solve concrete again effectively and wait the problem that has a strong impact on concrete pouring quality because of drop produces segregation than Da Yi.The utility model can be guaranteed concrete pouring quality applicable to the cast-in-situ concrete cloth of building high-speed railway, 32 meters large scale prefabricated box beams of Line for Passenger Transportation or building.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the enlarged diagram of the second horizontal rotation mechanism.
Fig. 3 is the enlarged diagram of luffing mechanism.
Reference numeral: arm, 12-oil cylinder, 13-centering block, 14-push rod, 15-forearm, 16-feed pipe, 17-discharging mouth, 18-luffing mechanism among 1-body of the tower bearing, the 2-first horizontal rotation mechanism, the 3-second horizontal rotation mechanism, 4-motor, the big arm of 5-, 6-reductor, 7-bearing, 8-sleeve, 9-tooth axle, 10-pivoting support, the 11-.
The specific embodiment
Embodiment is referring to shown in Figure 1, the material distributing machine of this three arms joint combination relative motion, comprise body of the tower bearing 1 and with the parallel connected boom system of concrete pumping pipeline, the head end of boom system is rotationally connected with body of the tower bearing 1 horizontal rotation by the first horizontal rotation mechanism 2, the concrete pumping pipeline is supported by jib, its feed pipe 16 is communicated with discharging mouth 17 (being arm end rubber hose), above-mentioned boom system is by big arm 5, middle arm 11 and 15 3 sections relative motions of forearm are connected from beginning to end and form, the end of big arm 5 is rotationally connected with the head end horizontal rotation of middle arm 11 by the second horizontal rotation mechanism 3, the end of middle arm 11 is rotationally connected by the head end of luffing mechanism 18 with forearm 15, and the end of forearm 15 is connected with discharging mouth 17.Described discharging mouth 17 is a rubber hose.
Referring to Fig. 2, the described second horizontal rotation mechanism 3 comprises that one is fixedly connected on motor 4, reductor 6 and the transmission mechanism of big arm 5 ends, and the output of reductor 6 drives and connects tooth axle 9, the pivoting support 10 during tooth axle 9 drives again and is fastened on the arm 11.Described tooth axle 9 is supported on the big arm 5 by bearing 7 and sleeve 8.
Referring to Fig. 3, described luffing mechanism 18 comprises oil cylinder 12, centering block 13 and push rod 14, the bottom of arm 11 during wherein oil cylinder 12 1 ends are hinged on, the other end is connected with the rear end of centering block 13, the middle and lower part of centering block 13 is connected with the rear end of push rod 14, the end of arm 11 during the front end of centering block 13 is hinged on, the front end of push rod 14 is connected with the head end of forearm 15 again.
The combination of the relative motion form between three arm joints of the utility model material distributing machine:
1, big arm 5 turns round in horizontal plane with middle arm 11, and the 360 ° of revolutions in horizontal plane of the big relatively arm of middle arm cover the construction operation face in 360 ° of scopes of whole jib length.
2, forearm 15 is with respect to 180 ° of pitching about middle arm is in vertical plane, and vertical luffing and exhibition folding reduce operation height effectively.