Material distributing device and automatic concrete distributing machine for prefabricated railway T-beam

Abstract

The invention provides a material distributing device and an automatic concrete distributing machine for a prefabricated railway T-shaped beam, and relates to the technical field of railway prefabricated beam production. The material distributing device comprises a supporting frame, a movable pipe box and a baffle, the supporting frame is used for being erected above the T-beam concrete formwork, a left material distributing station, a middle material distributing station and a right material distributing station are arranged corresponding to the T-beam concrete formwork, the movable pipe box is movably installed on the supporting frame and moves on the three material distributing stations in a reciprocating mode, and the baffle is arranged on the middle material distributing station and the right material distributing station. The movable pipe box is provided with a material distribution cavity, the material distribution cavity penetrates through the movable pipe box in the vertical direction, the material distribution cavity is used for being communicated with the discharging end of the material distribution machine through a material spreading pipe, the baffle is arranged on the movable pipe box, and when the movable pipe box is located at the middle material distribution station, the baffle covers half of the cross sectional area of an outlet of the material distribution cavity in a sealing mode. And the middle material distribution station is an initial station for moving the tube box. In the three-section material distribution process, material distribution of the left material distribution station, the middle material distribution station and the right material distribution station is uniform.

Description

Technical Field

[0001] The invention relates to the technical field of railway prefabricated beam production, and in particular to a distribution device and an automatic distribution machine for prefabricated railway T-beam concrete. Background Art

[0002] T-beams are mainly used in important load-bearing locations on bridges and railways, and their quality is directly related to the stability of the bridge structure.

[0003] In the prior art, the prefabrication of T-beams is generally carried out by placing the materials through a placing machine. Due to the long length of the T-beam, the commonly used placing method is to use three-stage placing, and the specific steps are: 1. Place the materials once at the middle station, 2. Place the materials once at the left station; 3. Place the materials once at the middle station; 4. Place the materials once at the right station; 5. Repeat the above steps 1-4. Since the placing amount is equal each time, it is easy to cause more placing at the middle station and less placing at the left and right stations, thus affecting the uniformity of placing. Summary of the invention

[0004] The problem solved by the invention is how to solve the problem of uneven cloth caused by three-section cloth.

[0005] To solve the above problems, on the one hand, the present invention provides a material distribution device, including a support frame, a mobile pipe box and a baffle, the support frame is used to be erected above the T-beam concrete formwork, and three material distribution stations corresponding to the T-beam concrete formwork are provided with a left material distribution station, a middle material distribution station and a right material distribution station, the mobile pipe box is movably installed on the support frame, and reciprocates between the three material distribution stations, the mobile pipe box is provided with a material distribution cavity, in the vertical direction, the material distribution cavity passes through the mobile pipe box, the material distribution cavity is used to communicate with the discharge end of the material distribution machine through a material laying pipe, the baffle is provided on the mobile pipe box, when the mobile pipe box is located at the middle material distribution station, the baffle covers half of the cross-sectional area of ​​the material distribution cavity outlet, wherein the middle material distribution station is the initial station of the mobile pipe box.

[0006] Optionally, a slide groove is provided on the support frame, and the slide groove includes a first slide groove and two second slide grooves extending horizontally, and two inclined grooves, the first slide groove is located at the middle material distributing station, and the two second slide grooves are respectively located at the left material distributing station and the right material distributing station, in the vertical direction, the first slide groove is higher than the two second slide grooves, and the first slide groove is connected with the two second slide grooves respectively through the two inclined grooves, the baffle is located in the material distributing cavity, and the lower end of the baffle is rotatably connected to the material distributing cavity through a rotating shaft, and the rotating shaft is perpendicular to the axis of the material distributing cavity, and the baffle is slidably connected to the slide groove through the connecting assembly, and when the movable pipe box moves from the second slide groove to the first slide groove, the connecting assembly drives the baffle to deflect around the rotating shaft to close half of the cross-sectional area of ​​the outlet of the material distributing cavity.

[0007] Optionally, the connecting assembly includes a gear, a rack and a connecting rod, the gear is mounted on the rotating shaft and meshes with the rack, a vertical mounting groove is also provided on the mobile pipe box, the rack is slidably connected to the vertical mounting groove, one end of the connecting rod is connected to the rack, and the other end is slidably connected to the slide groove.

[0008] Optionally, the plate area of ​​the baffle is greater than half of the cross-sectional area of ​​the material distribution cavity.

[0009] Optionally, the material distributing device also includes a slide plate and an elastic member, wherein the slide plate is located at the end of the baffle away from the rotating shaft, a groove is provided on the slide plate, the end of the baffle away from the rotating shaft is embedded in the groove and is slidably connected to the groove, and the elastic member is located in the groove and is respectively connected to the slide plate and the baffle.

[0010] Optionally, the material distribution device further comprises an elastic pad, and the elastic pad is mounted on an end of the slide plate away from the baffle.

[0011] Optionally, a support rod is provided on the support frame, the support rod is slidably connected to the movable pipe box, and the slide groove is provided on the support rod.

[0012] Optionally, the material distribution device also includes a driving motor, and the support frame is also provided with a threaded rod parallel to the support rod, the threaded rod is installed on the support frame through a bearing seat so as to rotate around its own axis, the movable pipe box is threadedly connected to the threaded rod, and the driving motor is drivingly connected to the threaded rod to drive the threaded rod to rotate.

[0013] Optionally, an arc-shaped groove is provided on the inner wall of the material distributing cavity, the arc-shaped groove is arranged around the rotating shaft, and the baffle is slidably connected to the arc-shaped groove through a connecting piece.

[0014] Compared with the prior art, the automatic concrete placing machine for prefabricated railway T-beam concrete of the present invention is installed above the T-beam concrete formwork through a support frame, and the mobile pipe box is movably installed on the support frame, so that the mobile pipe box can be moved above the T-beam concrete formwork under the support of the support frame, and the placing cavity penetrates the mobile pipe box in the vertical direction, and is connected with the discharging end of the placing machine through the placing pipe. As the mobile pipe box reciprocates between the left placing station, the middle placing station and the right placing station, the concrete in the placing cavity can fall into the left placing station The middle feeding station is used as the initial station of the mobile pipe box, and when the mobile pipe box is located at the middle feeding station, the baffle covers half of the cross-sectional area of ​​the outlet of the feeding cavity, so that the feeding cavity can carry out two feedings at the middle feeding station in one feeding cycle, and the sum of the two feeding amounts can be equal to the feeding amounts of the left feeding station and the right feeding station. In this way, in the process of three-stage feeding, the feeding of the three feeding stations, namely the left feeding station, the middle feeding station and the right feeding station, is uniform.

[0015] On the other hand, the present invention also provides an automatic concrete placing machine for prefabricated railway T-beams, comprising a placing machine body and a placing device as described above, wherein the placing machine body is connected to a placing cavity on the placing device through a placing pipe.

[0016] The automatic concrete placing machine for prefabricated railway T-beams has all the beneficial effects of the concrete placing device, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the mobile pipe box of an embodiment of the present invention when it is installed in the middle station;

[0018] Figure 2 This is a structural schematic diagram of a mobile pipe box according to an embodiment of the present invention installed on a support rod at a middle station;

[0019] Figure 3 This is a schematic diagram of the structure of the baffle in the middle position according to an embodiment of the present invention;

[0020] Figure 4 For the embodiment of the present invention Figure 3 The enlarged view of point A in the middle;

[0021] Figure 5 A cross-sectional view of a mobile pipe box at an installation groove according to an embodiment of the present invention;

[0022] Figure 6 It is a side cross-sectional view of the baffle structure according to an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1-support frame; 101-threaded rod; 102-support rod; 103-first slide groove; 104-bevel groove; 105-second slide groove; 2-T beam concrete formwork; 3-mobile pipe box; 301-pipe mouth; 302-rotating shaft; 303-baffle; 304-installation groove; 305-gear; 306-rack; 307-slide rod; 308-slide plate; 309-groove; 310-elastic member; 311-elastic pad; 312-arc groove. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the accompanying drawings, the Z axis represents the vertical position, and the positive direction of the Z axis (that is, the direction in which the arrow of the Z axis points) represents the upper side, and the negative direction of the Z axis (that is, the direction opposite to the positive direction of the Z axis) represents the lower side; in the accompanying drawings, the X axis represents the horizontal position, and the positive direction of the X axis (that is, the direction in which the arrow of the X axis points) represents the left side, and the negative direction of the X axis (that is, the direction opposite to the positive direction of the X axis) represents the right side; in the accompanying drawings, the Y axis represents the front and rear positions, and the positive direction of the Y axis (that is, the direction in which the arrow of the Y axis points) represents the front side, and the negative direction of the Y axis (that is, the direction opposite to the positive direction of the Y axis) represents the rear side. It should also be noted that the aforementioned Z axis, Y axis, and X axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0028] Combination Figures 1 to 5As shown, the present invention provides a material distribution device, including a support frame 1, a mobile pipe box 3 and a baffle 303. The support frame 1 is used to be erected above the T-beam concrete formwork 2, and three material distribution stations, namely the left material distribution station, the middle material distribution station and the right material distribution station, are arranged corresponding to the T-beam concrete formwork 2. The mobile pipe box 3 is movably installed on the support frame 1, and reciprocates between the three material distribution stations. The mobile pipe box 3 is provided with a material distribution cavity 301. In the vertical direction, the material distribution cavity 301 penetrates the mobile pipe box 3. The material distribution cavity 301 is used to be connected with the discharge end of the material distribution machine through a material laying pipe. The baffle 303 is arranged on the mobile pipe box 3. When the mobile pipe box 3 is located at the middle material distribution station, the baffle 303 covers half of the cross-sectional area of ​​the outlet of the material distribution cavity 301, wherein the middle material distribution station is the initial station of the mobile pipe box 3.

[0029] Specifically, the T-beam concrete formwork 2 is arranged horizontally, that is, the T-beam concrete formwork 2 is placed along the X-axis. The support frame 1 is erected above the T-beam concrete formwork 2, and the mobile pipe box 3 is located above the T-beam concrete formwork 2, and moves back and forth linearly along the length direction of the T-beam concrete formwork 2 on the support frame 1. The support frame 1 is sequentially provided with three distribution stations, namely the left distribution station, the middle distribution station and the right distribution station, from left to right along the length direction of the T-beam concrete formwork 2. In the vertical direction, the distribution cavity 301 passes through the mobile pipe box 3, so that the concrete in the distribution cavity 301 can fall into the T-beam concrete formwork 2. At the beginning of material distribution, the mobile pipe box 3 is located at the middle material distribution station, and the baffle 303 covers half of the cross-sectional area of ​​the outlet of the material distribution chamber 301. The discharge end of the material distribution machine delivers concrete to the material distribution chamber 301 with the outlet covered through the material distribution pipe to maintain the transportation of concrete. At this time, the amount of concrete falling into the T-beam concrete formwork 2 through the outlet of the material distribution chamber 301 is approximately half of that when the outlet of the material distribution chamber 301 is fully opened, that is, the amount of material distribution of the mobile pipe box 3 at the middle material distribution station is only half; after the mobile pipe box 3 moves from the middle material distribution station to the right material distribution station, the baffle 303 no longer covers half of the cross-sectional area of ​​the outlet of the material distribution chamber 301, so that the material distribution chamber 301 is fully opened, and then, the amount of material distribution of the mobile pipe box 3 at the right material distribution station is one portion; after the right material distribution station is distributed, the mobile pipe box 3 moves to the middle material distribution station again, and the baffle 303 covers the outlet of the material distribution chamber 301 again. The middle distribution station is provided with half of the cross-sectional area, and the middle distribution station is provided with a second distribution, and then the mobile pipe box 3 is moved to the left distribution station, and concrete is distributed to the left distribution station. At the left distribution station, the baffle 303 does not cover the outlet cross-sectional area of ​​the distribution chamber 301, so that the distribution chamber 301 is fully opened, that is, the distribution amount of the mobile pipe box 3 at the left distribution station is also one portion; after the concrete distribution is carried out at the left distribution station, the mobile pipe box 3 is moved to the middle distribution station again to complete one distribution cycle; because in one distribution cycle, the middle distribution station distributes twice, and the concrete distribution amount of the distribution chamber 301 during the two distribution processes is half, so that the two concrete distribution amounts of the middle distribution station are equal to the one concrete distribution amounts of the left distribution station and the right distribution station, therefore, the distribution amounts of the middle left distribution station, the middle distribution station and the right distribution station in one distribution cycle can be equal.

[0030] Therefore, in this embodiment, the support frame 1 is erected above the T-beam concrete formwork 2, and the mobile pipe box 3 is movably installed on the support frame 1, so that the mobile pipe box 3 can be moved above the T-beam concrete formwork 2 under the support of the support frame 1, and the material distribution cavity 301 penetrates the mobile pipe box 3 in the vertical direction, and is connected with the discharge end of the material distribution machine through the material distribution pipe. As the mobile pipe box 3 reciprocates between the left material distribution station, the middle material distribution station and the right material distribution station, the concrete in the material distribution cavity 301 can fall into the left material distribution station, the middle material distribution station and the right material distribution station. There are three right feeding stations, and then the middle feeding station is the initial station of the mobile pipe box 3, and when the mobile pipe box 3 is located at the middle feeding station, the baffle 303 covers half of the cross-sectional area of ​​the outlet of the feeding chamber 301, so that the feeding chamber 301 can carry out two middle feeding stations feeding in one feeding cycle, and the sum of the two feeding amounts can be equal to the feeding amounts of the left feeding station and the right feeding station. In this way, in the process of three-stage feeding, the feeding of the three feeding stations of the left feeding station, the middle feeding station and the right feeding station is uniform.

[0031] Optionally, combined Figure 2 , Figure 3 and Figure 4 As shown, a slide groove is arranged on the support frame 1, and the slide groove includes a first slide groove 103 and two second slide grooves 105 extending horizontally, and two inclined grooves 104. The first slide groove 103 is located at the middle material distribution station, and the two second slide grooves 105 are respectively located at the left material distribution station and the right material distribution station. In the vertical direction, the first slide groove 103 is higher than the two second slide grooves 105, and the first slide groove 103 is connected with the two second slide grooves 105 respectively through the two inclined grooves 104. The baffle 303 is located in the material distribution cavity 301, and the lower end of the baffle 303 is rotatably connected to the material distribution cavity 301 through the rotating shaft 302. The rotating shaft 302 is perpendicular to the axis of the material distribution cavity 301, and the baffle 303 is slidably connected to the slide groove through a connecting assembly. When the movable pipe box 3 moves from the second slide groove 105 to the first slide groove 103, the connecting assembly drives the baffle 303 to deflect around the rotating shaft 302 to close half of the cross-sectional area of ​​the outlet of the material distribution cavity 301.

[0032] Specifically, the support frame 1 includes a crossbeam located above the T-beam concrete formwork 2, and the crossbeam can be the support rod 102 mentioned later. The crossbeam extends along the length direction of the T-beam concrete formwork 2, and a first slide groove 103 and two second slide grooves 105 are provided at the front end of the crossbeam, that is, the end face of the crossbeam facing the positive direction of the Y axis. The first slide groove 103 and the two second slide grooves 105 extend horizontally along the length direction of the T-beam concrete formwork 2, and the groove widths of the first slide groove 103 and the two second slide grooves 105 are equal. The first slide groove 103 is located between the two second slide grooves 105 and above the second slide grooves 105. The two ends of the first slide groove 103 are smoothly connected with the two second slide grooves 105 through the inclined grooves 104. The baffle 303 is located in the material distribution cavity 301. The lower end of the baffle 303 is rotatably connected to the lower end of the material distribution cavity 301 through the rotating shaft 302, and the rotating shaft 302 is perpendicular to the axis of the material distribution cavity 301. The lower end of the baffle 303 is slidably connected to the second slide groove 105 through a connecting assembly. When the mobile pipe box 3 moves from the second slide groove 105 to the first slide groove 103, the connecting assembly drives the baffle 303 to deflect to close half of the cross-sectional area of ​​the material distribution cavity 301. In this way, in one cycle of the three-stage material distribution process, the reciprocating movement of the mobile tube box 3 can drive the connecting component to slide in the first slide groove 103, the second slide groove 105 and the inclined groove 104, and then the connecting component can realize the autonomous deflection of the baffle 303 in the material distribution cavity 301. Only by moving the mobile tube box 3 can half of the cross-sectional area of ​​the material distribution cavity 301 be closed and the material distribution cavity 301 be fully opened, so there is no need to make other adjustments, thereby improving the use efficiency of the baffle 303.

[0033] In some embodiments, the connecting assembly may be a connecting rod and a cam, the connecting rod is vertical, the upper end of the connecting rod slides in the first slide groove 103 and the two second slide grooves 105 through a horizontal connecting axis, the lower end of the connecting rod is connected to the rim of the cam, and the cam is key-connected to the rotating shaft 302. Since the connecting shaft slides in the first slide groove 103, the second slide groove 105 and the inclined groove 104, when the mobile pipe box 3 moves from the second slide groove 105 on the right to the first slide groove 103, the inclined groove 104 causes the connecting shaft to rise, the connecting rod moves upward, and the connecting rod applies an upward pulling force to the cam, so that the cam can drive the rotating shaft 302 to rotate, and the rotation 302 drives the baffle 303 to rotate around the rotating shaft 302 in the material distribution cavity 301, so that the end of the baffle 303 away from the rotating shaft 302 rotates to close half of the cross-sectional area of ​​the material distribution cavity 301; when the mobile pipe box 3 moves from the first slide groove 103 to the second slide groove 105 on the left, the connecting shaft moves downward along the inclined groove 104, so that the connecting rod moves downward, and the connecting rod applies a downward thrust to the cam, so that the end of the baffle 303 away from the rotating shaft 302 rotates upward to fully open the material distribution cavity 301.

[0034] Optionally, combined Figure 4As shown, the connecting assembly includes a gear 305, a rack 306 and a connecting rod 307. The gear 305 is installed on the rotating shaft 302 and meshes with the rack 306. A vertical mounting groove 304 is also provided on the mobile pipe box 3. The rack 306 is slidably connected to the vertical mounting groove 304. One end of the connecting rod 307 is connected to the rack 306, and the other end is slidably connected to the slide groove.

[0035] Specifically, the gear 305 is key-connected to the rotating shaft 302, the rack 306 is slidably connected to the vertical mounting groove 304 on the mobile pipe box 3, and at the same time, the rack 306 is slidably connected to the slide groove through the connecting rod 307, so that the rack 306 can move along the slide groove with the mobile pipe box 3, and when moving to the inclined groove 104, it can slide up and down in the vertical mounting groove 304 relative to the mobile pipe box 3 under the guiding action of the inclined groove 104, thereby realizing the interaction between the rack 306 and the gear 305; the rack 306 is meshed with the gear 305, one end of the connecting rod 307 is connected to the rack 306, and the other end is slidably connected to the first slide groove 103. In the process of the mobile pipe box 3 moving from the second slide groove 105 of the right material distribution station to the first slide groove 103, the connecting rod 307 moves upward along the inclined groove 104, thereby driving the rack 306 to move upward, so that the gear 305 drives the baffle 303 to deflect to the inner wall of the material distribution cavity 301 toward the left material distribution station to cover half of the cross-sectional area of ​​the material distribution cavity 301. In the process of the mobile pipe box 3 moving from the first slide groove 103 to the second slide groove 105 of the left material distribution station, the connecting rod 307 moves the inclined groove 104 downward, thereby driving the rack 306 to move downward, so that the gear 305 drives the baffle 303 to deflect to a vertical state to fully open the material distribution cavity 301, and the material distribution of the T-beam is achieved repeatedly in this way. In this way, the gear 305 and the rack 306 are meshed, and the rack 306 slides in the vertical mounting groove 304 through the connecting rod 307. The meshing of the gear 305 and the rack 306 improves the self-stability of the baffle 303, and the movement of the rack 306 is guided by the vertical mounting groove 304. In this way, the meshing of the gear 305 and the rack 306 can improve the stability of the baffle 303 when it is closed, so as to avoid the impact of the concrete causing the baffle 303 to rotate, thereby improving the sealing effect of the baffle 303.

[0036] In some embodiments, in order to prevent concrete from affecting the meshing between the gear 305 and the rack 306 , a separate cavity may be opened on the movable pipe box 3 to accommodate the gear 305 and the rack 306 , and the cavity is located between the material distribution cavity 301 and the first chute 103 .

[0037] Optionally, the plate area of ​​the baffle 303 is greater than half of the cross-sectional area of ​​the material distribution cavity 301 .

[0038] Specifically, when the baffle 303 rotates around the rotating shaft 302 at its lower end, the moving trajectory of the upper end of the baffle 303 is arc-shaped. Since the plate area of ​​the baffle 303 is larger than half of the cross-sectional area of ​​the outlet of the cloth chamber 301, at this time, the baffle 303 is tilted in the cloth chamber 301, that is, it can cover half of the cross-sectional area of ​​the outlet of the cloth chamber 301; optionally, when the baffle 303 is tilted in the cloth chamber 301 to cover half of the cross-sectional area of ​​the outlet of the cloth chamber 301, the upper end of the baffle 303 can be against the inner wall of the cloth chamber 301 to lock the baffle 303.

[0039] In this way, the plate area of ​​the baffle 303 is larger than half of the cross-sectional area of ​​the material distribution chamber 301. In this way, after the baffle 303 rotates, the upper end of the baffle 303 can be against the inner wall of the material distribution chamber 301, so as to improve the stability of the baffle 303 under the support of the inner wall of the material distribution chamber 301. At the same time, through the inclined setting of the baffle 303, it can be avoided that during the material distribution process at the middle station, the concrete is accumulated on the baffle 303 for a long time, which makes it difficult for the concrete on the baffle 303 to slide off the baffle 303 after solidification, so as to improve the material distribution efficiency.

[0040] Optionally, combined Figure 6 As shown, the material distributing device also includes a slide plate 308 and an elastic member 310. The slide plate 308 is located at the end of the baffle 303 away from the rotating shaft 302. A groove 309 is provided on the slide plate 308. The end of the baffle 303 away from the rotating shaft 302 is embedded in the groove 309 and is slidably connected to the groove 309. The elastic member 310 is located in the groove 309 and is respectively connected to the slide plate 308 and the baffle 303.

[0041] Specifically, the slide plate 308 is sleeved on the upper end of the baffle 303 through the groove 309 , and the slide plate 308 can slide relative to the upper end of the baffle 303 . The elastic member 310 is located in the groove 309 and connected between the groove 309 and the upper end of the baffle 303 . When the baffle 303 closes half of the cross-sectional area of ​​the material distribution cavity 301, the slide plate 308 abuts against the inner wall of the material distribution cavity 301, and as the baffle 303 rotates, the slide plate 308 slides toward the baffle 303 and compresses the elastic member 310. The compressed elastic member 310 can increase the degree of contact between the slide plate 308 and the side wall of the material distribution cavity 301 to ensure the airtightness between the slide plate 308 and the side wall of the material distribution cavity 301. When the baffle 303 is vertical to open the material distribution cavity 301, when concrete falls, the slide plate 308 can reduce the impact of concrete on the baffle 303 through the elastic member 310, thereby avoiding damage to the baffle 303 and improving the safety of the baffle 303.

[0042] Optionally, combined Figure 6 As shown, the material distributing device further includes an elastic pad 311 , and the elastic pad 311 is installed at one end of the slide plate 308 away from the baffle plate 303 .

[0043] Specifically, the elastic pad 311 can be a rubber pad. The rubber pad is fixedly mounted on the end of the slide plate 308 away from the baffle plate 303. The slide plate 308 abuts against the inner wall of the material distribution cavity 301 through the rubber pad, which can increase the friction between the slide plate 308 and the side wall of the material distribution cavity 301. In this way, by installing the elastic pad 311 on the end of the slide plate 308 away from the baffle plate 303, the elastic pad 311 can abut against the inner wall of the material distribution cavity 301 to improve the flexibility between the slide plate 308 and the inner wall of the material distribution cavity 301, so as to reduce the impact on the baffle plate 303 when the concrete falls, and avoid damage to the baffle plate 303.

[0044] Optionally, combined Figure 1 and Figure 4 As shown, a support rod 102 is provided on the support frame 1 , the support rod 102 is slidably connected to the movable pipe box 3 , and a slide groove 103 is provided on the support rod 102 .

[0045] Specifically, the two rod ends of the support rod 103 are fixed on the support frame 1 , the mobile pipe box 3 is sleeved on the support rod 103 and slides along the support rod 103 , and the first slide groove 103 and the second slide groove 105 are both opened on the front side of the support rod 102 .

[0046] In this way, the support rod 102 set on the support frame 1 is slidably connected to the mobile pipe box 3, and the first slide groove 103 and the second slide groove 105 are both set on the support rod 102. In this way, the support rod 102 can guide the movement of the mobile pipe box 3 to ensure that the connecting rod 307 in the mobile pipe box 3 always slides along the first slide groove 103 and the second slide groove 105 without detachment.

[0047] Optionally, combined Figure 1 As shown, the material distribution device also includes a driving motor, and a threaded rod 101 parallel to the support rod 102 is also provided on the support frame 1. The threaded rod 101 is installed on the support frame 1 through a bearing seat to rotate around its own axis. The movable pipe box 3 is threadedly connected to the threaded rod 101, and the driving motor is drivingly connected to the threaded rod 101 to drive the threaded rod 101 to rotate.

[0048] Specifically, the threaded rod 101 and the support rod 102 are located at the same height, and the two ends of the threaded rod 101 are respectively installed on the support frame 1 through bearing seats and can rotate around their own axes. The output end of the driving motor is connected to the threaded rod 101 through a coupling. The threaded rod 101 can be a one-way screw or a reciprocating screw. When the threaded rod 101 is a one-way screw, the threaded rod 101 is driven to rotate forward or reverse by the driving motor so that the movable pipe box 3 can reciprocate along the threaded rod 101. When the threaded rod 101 is a reciprocating screw, the movable pipe box 3 can reciprocate along the threaded rod 101 by driving the motor to rotate unidirectionally.

[0049] In this way, a threaded rod 101 parallel to the support rod 102 is installed on the support frame 1 through a bearing seat so as to rotate around its own axis, and the mobile pipe box 3 is threadedly connected to the threaded rod 101, so that the rotation of the threaded rod 101 can be converted into a linear movement of the mobile pipe box 3 along the support rod 102, and then the threaded rod 101 is driven and connected by a driving motor to drive the threaded rod 101 to rotate. In this way, the automatic operation of the mobile pipe box 3 can be realized by driving the driving motor to improve the movement efficiency of the mobile pipe box 3.

[0050] Optionally, combined Figure 2 As shown, an arc groove 312 is provided on the inner wall of the material distributing chamber 301 , the arc groove is arranged around the rotating shaft 302 , and the baffle 303 is slidably connected to the arc groove 312 through a connecting piece.

[0051] Specifically, in the front and rear directions of the movable pipe box 3, two arc grooves 312 are respectively provided on the front and rear inner walls of the cloth cavity 301, and two connecting shafts are provided at the upper end of the baffle 303. The connecting shafts are the connecting parts. The connecting shafts are correspondingly slidably connected with the arc grooves 312, and the extension direction of the arc grooves 312 is consistent with the rotation trajectory of the upper end of the baffle 303.

[0052] In this way, by providing an arc groove 312 on the inner wall of the material distribution chamber 301, and making the extension direction of the arc groove 312 consistent with the rotation direction of the end of the baffle 303 away from the rotating shaft 302, the line shape of the arc groove 312 is consistent with the rotation path of the end of the baffle 303 away from the rotating shaft 302, and then the baffle 303 is slidingly connected to the arc groove 312 through a connecting piece. In this way, the arc groove 312 can guide the rotation of the baffle 303 while supporting and limiting the baffle 303 to improve the stability of the baffle 303.

[0053] The embodiment of the present invention further provides an automatic concrete placing machine for prefabricated railway T-beams, comprising a placing machine body and a placing device as described above, wherein the placing machine body is connected to a placing cavity 301 on the placing device via a placing pipe.

[0054] The automatic concrete placing machine for prefabricated railway T-beams has all the beneficial effects of the concrete placing device, which will not be described in detail here.

[0055] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A material distribution device, characterized in that: The invention comprises a support frame (1), a movable pipe box (3) and a baffle (303); the support frame (1) is used to be erected above a T-beam concrete formwork (2), and is provided with three material distribution stations, namely a left material distribution station, a middle material distribution station and a right material distribution station, corresponding to the T-beam concrete formwork (2); the movable pipe box (3) is movably mounted on the support frame (1) and reciprocates between the three material distribution stations; the movable pipe box (3) is provided with a material distribution cavity (301) In the vertical direction, the material distribution cavity (301) passes through the mobile pipe box (3), and the material distribution cavity (301) is used to communicate with the discharge end of the material distribution machine through the material distribution pipe. The baffle (303) is arranged on the mobile pipe box (3). When the mobile pipe box (3) is located at the middle material distribution station, the baffle (303) covers half of the cross-sectional area of ​​the outlet of the material distribution cavity (301), wherein the middle material distribution station is the initial station of the mobile pipe box (3).

2. The material distribution device according to claim 1, characterized in that: The support frame (1) is provided with a slide groove, and the slide groove includes a first slide groove (103) and two second slide grooves (105) extending horizontally, and two inclined grooves (104), the first slide groove (103) is located at the middle material distributing station, and the two second slide grooves (105) are respectively located at the left material distributing station and the right material distributing station. In the vertical direction, the first slide groove (103) is higher than the two second slide grooves (105), and the first slide groove (103) is connected to the two second slide grooves (105) through the two inclined grooves (104), and the baffle (3) is connected to the second slide groove (105). 03) is located in the material distribution chamber (301), the lower end of the baffle (303) is rotatably connected to the material distribution chamber (301) via a rotating shaft (302), the rotating shaft (302) is perpendicular to the axis of the material distribution chamber (301), the baffle (303) is slidably connected to the slide groove via the connecting component, when the mobile pipe box (3) moves from the second slide groove (105) to the first slide groove (103), the connecting component drives the baffle (303) to deflect around the rotating shaft (302) to close half of the cross-sectional area of ​​the outlet of the material distribution chamber (301).

3. The material distribution device according to claim 2, characterized in that: The connecting assembly comprises a gear (305), a rack (306) and a connecting rod (307); the gear (305) is mounted on the rotating shaft (302) and meshed with the rack (306); a vertical mounting groove (304) is also provided on the mobile pipe box (3); the rack (306) is slidably connected to the vertical mounting groove (304); one end of the connecting rod (307) is connected to the rack (306), and the other end is slidably connected to the slide groove.

4. The material distribution device according to claim 2, characterized in that: The plate area of ​​the baffle (303) is greater than half of the cross-sectional area of ​​the material distribution chamber (301).

5. The material distribution device according to claim 4, characterized in that: The material distributing device further comprises a slide plate (308) and an elastic member (310); the slide plate (308) is located at one end of the baffle plate (303) away from the rotating shaft (302); a groove (309) is provided on the slide plate (308); one end of the baffle plate (303) away from the rotating shaft (302) is embedded in the groove (309) and is slidably connected to the groove (309); the elastic member (310) is located in the groove (309) and is respectively connected to the slide plate (308) and the baffle plate (303).

6. The material distribution device according to claim 5, characterized in that: The material distribution device further comprises an elastic pad (311), wherein the elastic pad (311) is mounted on an end of the slide plate (308) away from the baffle plate (303).

7. The material distribution device according to claim 2, characterized in that: The support frame (1) is provided with a support rod (102), the support rod (102) is slidably connected to the movable pipe box (3), and the slide groove (103) is provided on the support rod (102).

8. The material distribution device according to claim 7, characterized in that: The material distribution device also includes a driving motor. The support frame (1) is also provided with a threaded rod (101) parallel to the support rod (102). The threaded rod (101) is installed on the support frame (1) through a bearing seat so as to rotate around its own axis. The movable pipe box (3) is threadedly connected to the threaded rod (101). The driving motor is drivingly connected to the threaded rod (101) so as to drive the threaded rod (101) to rotate.

9. The material distribution device according to claim 2, characterized in that: An arc-shaped groove (312) is provided on the inner wall of the material distributing cavity (301), the arc-shaped groove is arranged around the rotating shaft (302), and the baffle (303) is slidably connected to the arc-shaped groove (312) via a connecting piece.

10. An automatic concrete placing machine for prefabricated railway T-beams, characterized in that: It comprises a material distributing machine body and a material distributing device as claimed in any one of claims 1 to 9, wherein the material distributing machine body is connected with a material distributing cavity (301) on the material distributing device via a material distributing pipe.

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