Concrete Pavement Dowel Bar Installation Auxiliary Device

Abstract

The present invention relates to the technical field of the installation of dowel bars for concrete pavements, and particularly relates to an auxiliary device for the installation of dowel bars for concrete pavements. By means of the installation auxiliary device of the present invention, a plurality of dowel bars are placed in a circulating lower rod member. During construction, the dowel bars in the circulating lower rod member are controlled to fall from the rod outlet onto the jacking installation assembly. The distance between the jacking installation assemblies is pre-adjusted to the distance between adjacent dowel bar holes, and then the received dowel bars can be jacked into the dowel bar holes, so that multiple dowel bars can be inserted at one time, and the construction efficiency of the dowel bars can be greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of the installation of dowel bars for concrete pavements, and particularly relates to an auxiliary device for installing dowel bars for concrete pavements. Background Art

[0002] A dowel bar refers to a round steel bar arranged at the center of the plate thickness at a certain distance along the transverse joints of a cement concrete pavement slab. One end of it is fixed in one side slab, and the other end can slide in the adjacent side slab. Its function is to transfer the traffic load between two pavement slabs and prevent uneven settlement, increase the stress transfer between adjacent concrete blocks to prevent large local stress on the concrete pavement, and transfer stress so that adjacent concrete blocks bear force together. During the construction of dowel bars, a fixing plate is set at the position of the transverse joint of the pavement slab, and dowel bar holes are equally spaced on the fixing plate. The dowel bars are inserted into the dowel bar holes and fixed to the dowel bar holes.

[0003] The utility model patent with the patent number CN214301164U and the patent application date of December 30, 2020 discloses an installation device for dowel bars of a concrete pavement, including a bottom device, an auxiliary device, an adjusting device and an installation device. The auxiliary device is arranged on the top of the bottom device, and the auxiliary device is fixedly connected with the bottom device. The installation device is arranged on the top of the auxiliary device, and the installation device is fixedly connected with the auxiliary device; in the use of the above installation device, only one dowel bar can be installed at a time; however, generally, a row of dowel bars needs to be installed every three or four meters on a concrete pavement, and a concrete pavement with a length of 100 meters needs to install thirty or forty rows of dowel bars. Installing dowel bars according to the installation device in the above patent will surely consume a lot of time and affect the construction progress. Summary of the Invention

[0004] The technical problem to be solved by the present invention is the problem that the existing dowel bar installation device has low construction efficiency.

[0005] In order to solve the above problems, the present invention provides an auxiliary device capable of improving the installation efficiency of dowel bars, and its specific solution is as follows:

[0006] An auxiliary device for installing dowel bars of a concrete pavement, which is used to insert dowel bars into the dowel bar holes of a fixing plate, includes a base mounting frame and a moving member. The moving member is used to drive the base mounting frame to move, and the moving direction of the moving member is perpendicular to the insertion direction of each dowel bar; a plurality of circulating lower rod members are movably arranged in the middle of the base mounting frame, and a number of dowel bars are placed inside the circulating lower rod members. The circulating lower rod members are connected with a top-out installation assembly, and the spacing between each top-out installation assembly is equal to the spacing between adjacent two dowel bar holes. The top-out installation assembly is used to place the dowel bars dropped by the circulating lower rod members and push the dowel bars into the corresponding dowel bar holes.

[0007] The present invention adopting the above technical solution has the following beneficial effects compared with the prior art:

[0008] Through the installation auxiliary device of the present invention, a number of load transfer bars are placed in the circulating lower rod member. During construction, the load transfer bars in the circulating lower rod member are controlled to fall from the rod outlet onto the ejection and installation assembly. By pre-adjusting the spacing of the ejection and installation assembly to the spacing of adjacent load transfer bar holes, the received load transfer bars can be pushed into the load transfer bar holes, thus enabling multiple load transfer bars to be inserted at one time, which can greatly improve the construction efficiency of the load transfer bars.

[0009] As a preference, a further technical solution of the present invention is:

[0010] The moving member includes a first motor, a transmission rod and a roller. The output shaft of the first motor is fixedly connected coaxially with the transmission rod. A first synchronous pulley is fixedly sleeved on the transmission rod. The roller is rotatably connected to the base mounting frame. A second synchronous pulley is fixedly sleeved on the roller. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt. The device is driven to move by the moving member, which is convenient for rapid construction.

[0011] A rotating rod assembly is arranged in the middle of the base mounting frame. The top of the circulating lower rod member is movably connected to the rotating rod assembly. Through the above structure, the circulating lower rod member moves on the rotating rod assembly, thereby driving the ejection and installation assembly to move, and further adjusting the spacing of the ejection and installation assembly to the spacing of adjacent two load transfer bar holes.

[0012] The rotating rod assembly includes a second motor, a first lead screw and a first guide rod. The second motor is used to drive the first lead screw to rotate; two circulating lower rod members are provided. Two sliding sleeves are connected to the circulating lower rod member. One sliding sleeve is threadedly connected to the first lead screw, and the other sliding sleeve is slidably connected to the first guide rod; the first lead screw is a positive and negative lead screw. When the second motor drives the first lead screw to rotate, the two circulating lower rod members move relative to each other. By driving the first lead screw to rotate by the second motor, under the limitation of the first guide rod, the sliding sleeve threadedly connected to the first lead screw moves relative to the first lead screw, thereby driving the circulating lower rod member and the ejection and installation assembly to move relative to each other, and further quickly adjusting the spacing of the two ejection and installation assemblies.

[0013] A lifting assembly is arranged on one side of the circulating lower rod member. The lifting assembly is connected to the ejection and installation assembly and is used to drive the ejection and installation assembly to lift. The height of the ejection and installation assembly can be adjusted conveniently by the lifting assembly, so that when the ejection and installation assembly ejects the load transfer bars, they can be accurately inserted into the load transfer bar holes.

[0014] The lifting assembly includes a third motor, a second screw rod and a second guide rod. A fixing frame is provided at the lower ends of the two sliding sleeves. The second screw rod is rotatably connected to the fixing frame, and the second guide rod is fixed on the fixing frame. A carrying frame is threadedly connected to the second screw rod, and the other end of the carrying frame is slidably connected to the second guide rod. The carrying frame is fixed to the ejection installation assembly, and the third motor is used to drive the second screw rod to rotate. The third motor drives the second screw rod to rotate, and under the limitation of the second guide rod, the carrying frame threadedly connected to the second screw rod moves on the second screw rod, thereby driving the ejection installation assembly to move vertically.

[0015] The ejection installation assembly includes an electric push rod, a U-shaped receiving frame and a push plate. The U-shaped receiving frame is fixed on the carrying frame. The U-shaped receiving frame is connected to the rod outlet of the rod storage box and is used to receive the force transmission rod of the rod storage box. The push plate is arranged in the U-shaped receiving frame, and one end of the push plate is fixed to the front end of the output rod of the electric push rod. The electric push rod is used to drive the push plate to move in the U-shaped receiving frame.

[0016] A rubber pad is arranged in the U-shaped receiving frame, which is used to buffer the impact force of the force transmission rod falling.

[0017] The circulating lower rod component includes a rod storage box and a lower rod assembly. A plurality of dowel rods are placed in the rod storage box. A plurality of inclined plates are arranged in layers in the rod storage box. The inclined directions of two adjacent layers of inclined plates are opposite. Each dowel rod rolls down layer by layer through each layer of inclined plates. The lower rod assembly is arranged below the lower end of the bottom layer of inclined plates. The dowel rods on the bottom layer of inclined plates are transported to the rod outlet one by one through the lower rod assembly. Through the above structure, the dowel rods are arranged in a serpentine shape in the rod storage box, thereby improving the capacity of the rod storage box. At the same time, it is convenient for the dowel rods to slide down layer by layer to the bottom end, and it is convenient for the lower rod assembly to transport the dowel rods one by one.

[0018] The lower rod assembly includes a fourth motor and a rotating column. The fourth motor drives the rotating column to rotate. A plurality of rotating plates are radially arranged on the rotating column. When the fourth motor drives the rotating column to rotate, the rotating plates sequentially move the force transmission rods to the rod outlet of the rod storage box. The fourth motor drives the rotating column to rotate, thereby driving the rotating plates to rotate. The rotating plates play the role of sequentially moving the force transmission rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional diagram of the overall structure of an embodiment of the present invention;

[0020] Figure 2 is a structural diagram of a moving component according to an embodiment of the present invention;

[0021] Figure 3 It is a structural diagram of a cyclic blanking component, an ejection installation component and a lifting component of an embodiment of the present invention;

[0022] Figure 4 is a side sectional view of a rod storage box according to an embodiment of the present invention;

[0023] Figure 5 is the structural diagram of the rotating rod assembly of the embodiment of the present invention;

[0024] In the figure: 1, base mounting frame; 2, rotating rod assembly; 21, first lead screw; 22, first guide rod; 23, second motor; 3, moving member; 31, mounting box; 32, transmission rod; 33, first motor; 34, first synchronous pulley; 35, synchronous belt; 36, second synchronous pulley; 37, fixed rod; 38, roller; 4, circulating lower rod member; 41, rod storage box; 411, handle; 42, lower rod assembly; 421, inclined plate; 422, rotating column; 423, rotating plate; 424, fourth motor; 43, sliding sleeve; 5, lifting assembly; 51, rotating rod; 52, third motor; 53, first bevel gear; 54, second bevel gear; 55, second lead screw; 56, carrying frame; 57, second guide rod; 58, fixed frame; 6, ejecting and mounting assembly; 61, electric push rod; 62, output rod; 63, movable groove; 64, U-shaped receiving frame; 65, rubber cushion plate; 66, push plate. Specific embodiments

[0025] The present invention will be further described below in conjunction with embodiments, and the purpose is only to better understand the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0026] See the appendix Figures 1-5 , this embodiment discloses an auxiliary device for installing load transfer bars on a concrete road surface, which is used to insert the load transfer bars into the load transfer bar holes of a fixed plate, and includes a base mounting frame 1 and a moving member 3. The moving member 3 is used to drive the base mounting frame 1 to move, and the moving direction of the moving member 3 is perpendicular to the insertion direction of each load transfer bar; a plurality of circulating lower rod members 4 are movably arranged in the middle of the base mounting frame 1. A number of load transfer bars are placed inside the circulating lower rod member 4. The circulating lower rod member 4 is connected to an ejecting and mounting assembly 6. The distance between each ejecting and mounting assembly 6 is equal to the distance between adjacent two load transfer bar holes. The ejecting and mounting assembly 6 is used to place the load transfer bars dropped by the circulating lower rod member 4 and push the load transfer bars into the corresponding load transfer bar holes.

[0027] In this embodiment, the base frame 1 includes a rectangular frame in the middle and vertical support frames at both ends of the rectangular frame. The lower ends of the two vertical support frames are provided with moving components 3, and the moving components 3 include a mounting box 31, a first motor 33, a transmission rod 32, two first synchronous wheels 34, two synchronous belts 35, two second synchronous wheels 36, two fixed rods 37 and two rollers 38. The mounting box 31 is fixed on the lower side wall of the vertical support frame, the output pump of the first motor 33 is coaxially fixed with the transmission rod 32, the two first synchronous wheels 34 are fixedly sleeved on the transmission rod 32, and the two rollers 38 are fixedly sleeved on the transmission rod 32. The rollers 38 are rotatably mounted on the two fixed rods 37, and the two ends of the two fixed rods 37 are fixed to the bottom end of the vertical support frame. The two second synchronous wheels 36 are fixedly mounted on the two rollers 38, and the two first synchronous wheels 34 and the second synchronous wheels 36 are respectively connected by two synchronous belts 35. The output shaft of the first motor 33 drives the transmission rod 32 to rotate, thereby driving the two first synchronous wheels 34 to rotate, and then driving the two second synchronous wheels 36 to rotate through the synchronous belt 35, and driving the rollers 38 to roll through the second synchronous wheels 36, so as to realize the movement of the base frame 1.

[0028] In this embodiment, a rotating rod assembly 2 is arranged in the middle of the base mounting frame 1, and the top of each circulating lower rod member 4 is movably connected to the rotating rod assembly 2. Through the above structure, the circulating lower rod member 4 moves on the rotating rod assembly 2, thereby driving the ejection mounting assembly 6 to move, and then adjusting the spacing of the ejection mounting assembly 6 to the spacing of two adjacent force transmission rod holes.

[0029] Preferably, the rotating rod assembly 2 includes a second motor 23, a first lead screw 21 and a first guide rod 22. The first lead screw 21 and the first guide rod 22 are arranged in parallel. The two ends of the first lead screw 21 are respectively rotatably connected to the inner walls of the two ends of the rectangular frame of the base mounting frame 1, and the two ends of the first guide rod 22 are respectively fixedly connected to the inner walls of the two ends of the rectangular frame of the base mounting frame 1. The second motor 23 is used to drive the first lead screw 21 to rotate. Preferably, two circulating lower rod members 4 are provided and symmetrically arranged with respect to the middle cross-section of the first guide rod 22 and the first lead screw 21. Guide sleeves are provided at the left and right ends of the top of the circulating lower rod member 4. The first lead screw 21 and the first guide rod 22 are respectively movably inserted into the guide sleeves at the left and right ends. Slide sleeves 43 are fixedly connected to the same sides of the two guide sleeves. The slide sleeve 43 at the left end is threadedly connected to the first lead screw 21, and the slide sleeve 43 at the right end is slidably connected to the first guide rod 22. Preferably, the first lead screw 21 is a reverse lead screw. A second motor 23 is fixed on the outer wall of one side of the fixing frame 58. The output shaft of the second motor 23 passes through the side wall of the fixing frame 58 and is coaxially fixed to the first lead screw 21. By driving the first lead screw 21 to rotate through the second motor 23, under the limitation of the first guide rod 22, the slide sleeve 43 threadedly connected to the first lead screw 21 relatively moves on the first lead screw 21, thereby driving the circulating lower rod member 4 and the ejecting and mounting assembly 6 to relatively move, and further quickly adjusting the distance between the two ejecting and mounting assemblies 6.

[0030] In this embodiment, a lifting assembly 5 is provided on one side of the circulating lower rod member 4. The lifting assembly 5 is connected to the ejection mounting assembly 6 and is used to drive the ejection mounting assembly 6 to lift. The lifting assembly 5 includes a U-shaped fixing frame 58, a third motor 52, a rotating rod 51, two first bevel gears 53, two second bevel gears 54, two second lead screws 55 and two second guide rods 57. The U-shaped fixing frame 58 is fixed to the lower ends of the two sliding sleeves 43. The third motor 52 is fixed to one side of the fixing frame 58. The second lead screw 55 is rotatably connected to the bottom beam of the fixing frame 58. The third motor 52 passes through one side wall of the fixing frame 58 and is fixed to the rotating rod 51. The other end of the rotating rod 51 is rotatably connected to the other inner wall of the fixing frame 58. Two first bevel gears 53 are respectively fixedly sleeved on the rotating rod 51. Two second bevel gears 54 are respectively coaxially fixed to the tops of the two second lead screws 55. The two first bevel gears 53 and the two second bevel gears 54 are respectively meshed. The two second guide rods 57 are both fixed to the fixing frame 58 between the two second lead screws 55. A carrier frame 56 is threadedly connected to each of the two second lead screws 55. The carrier frame 56 has an L-shaped structure. The inner end of the carrier frame 56 is slidably connected to the second guide rod 57. The outer end of the carrier frame 56 is fixed to the ejection mounting assembly 6. The folding position of the carrier frame 56 is threadedly connected to the second lead screw 55. When the third motor 52 drives the rotating rod 51 to rotate, the two first bevel gears 53 on the rotating rod 51 rotate accordingly, thereby driving the two second bevel gears 54 to rotate, and further driving the two second lead screws 55 to rotate. Under the limitation of the second guide rod 57, the carrier frame 56 threadedly connected to the second lead screw 55 moves vertically on the second lead screw 55, thereby driving the ejection mounting assembly 6 to move vertically. Through this lifting assembly 5, it is convenient to adjust the height of the ejection mounting assembly 6, so that when the ejection mounting assembly 6 ejects the force transmission rod, it can be accurately inserted into the force transmission rod hole.

[0031] In this embodiment, the circulating lower rod member 4 includes a rod storage box 41 and a lower rod assembly 42. Two guide sleeves are arranged at the left and right ends of the top of the rod storage box 41. A number of force transmission rods are stored in the rod storage box 41. Specifically, a plurality of inclined plates 421 are arranged in layers in the rod storage box 41. In adjacent two layers of inclined plates 421, the inclination direction of the upper inclined plate 421 is opposite to that of the lower inclined plate 421, and the bottom end of the upper inclined plate 421 is butted against the top end of the lower inclined plate 421, so that the force transmission rods placed on each layer of inclined plates 421 are arranged in a snake shape, thereby improving the accommodation rate of the rod storage box 41. The force transmission rods roll downward layer by layer under the limiting action of each layer of inclined plates 421. The lower rod assembly 42 is arranged below the low end of the bottommost inclined plate 421, which is convenient for the force transmission rods to slide down layer by layer to the bottom end, and is convenient for the lower rod assembly 42 to convey the force transmission rods one by one. An outlet is opened at the bottom of the outer side wall of the rod storage box 41, and the ejection mounting assembly 6 is butted below the outlet. The top plate of the rod storage box 41 can be opened, and a handle 411 is arranged on the top plate, which is convenient for replenishing the force transmission rods in the rod storage box 41.

[0032] In this embodiment, the lower rod assembly 42 includes a fourth motor 424 and a rotating column 422. The fourth motor 424 is fixed on the lower side wall of the rod storage box 41. The output shaft of the fourth motor 424 passes through the side wall of the rod storage box 41 and is connected to the rotating column 422. A plurality of rotating plates 423 are radially arranged on the side wall of the rotating column 422. The length of the rotating plate 423 is the same as that of the rotating column 422. When the rotating column 422 is driven to rotate by the fourth motor 424, the force-transmitting rods rolling on the bottom inclined plate 421 are shifted by the rotating plates 423 and move towards the rod outlet of the rod storage box 41. With the above structure, it is convenient to control the rod discharging speed of the rod storage box 41 by the fourth motor 424.

[0033] In this embodiment, the ejecting and mounting assembly 6 includes an electric push rod 61, a U-shaped receiving frame 64, a rubber cushion plate 65 and a push plate 66. The U-shaped receiving frame 64 is lapped and fixed on two carrying frames 56. The U-shaped receiving frame 64 is used to receive the force-transmitting rods falling from the rod storage box 41. The length direction of the U-shaped receiving frame 64 is the same as the direction of the force-transmitting rods in the rod storage box 41. The electric push rod 61 is arranged in parallel on the outside of the U-shaped receiving frame 64. The front end of the output rod 62 of the electric push rod 61 is vertically fixed to the push plate 66. The push rod is arranged in the U-shaped receiving frame 64. An activity groove 63 in the length direction is formed in the side wall of the U-shaped receiving frame 64 on the side close to the electric push rod 61. The push rod moves in the activity groove 63. A rubber cushion plate 65 is placed at the bottom of the U-shaped receiving frame 64 to buffer the impact force of the falling force-transmitting rods. When the force-transmitting rods fall into the U-shaped receiving frame 64, the electric push rod 61 is started. The push plate 66 is driven to move by the electric push rod 61, so that the force-transmitting rods lapped on the push plate 66 move horizontally accordingly, and the force-transmitting rods are inserted into the force-transmitting rod holes of the fixing plate.

[0034] When the installation auxiliary device of this embodiment is in use, the base mounting frame 1 is moved to one side of the fixed plate where the force transmission rod is to be installed through the moving mechanism, so that the force transmission rod of the U-shaped bearing frame 64 of the ejecting and installing assembly 6 is coaxially corresponding to the force transmission rod hole on the fixed plate; the second motor 23 is started to rotate the first lead screw 21, and the two rod storage boxes 41 acting on the first lead screw 21 move relatively, driving the ejecting and installing assembly 6 to move relatively until the distance between the U-shaped bearing frames 64 of the two ejecting and installing assemblies 6 is equal to the distance between two adjacent force transmission rod holes on the fixed plate, which is convenient for constructing two force transmission rods at one time; the third motor 52 is started to adjust the height of the U-shaped bearing frame 64 of the ejecting and installing assembly 6 to be the same as the height of the force transmission rod hole on the fixed plate. At this time, the receiving groove of the U-shaped bearing frame 64 should be directly opposite to the force transmission rod hole. If there is still deviation, repeat the above two steps for adjustment; the fourth motor 424 is started to drive the rotating plate 423 to rotate, and the lowermost force transmission rod in the rod storage box 41 is pulled out through the rotating plate 423 and made to fall on the U-shaped bearing frame 64. Then, it is confirmed again whether the force transmission rod on the U-shaped bearing frame 64 corresponds to the position of the force transmission rod hole and adjustments are made; the electric push rod 61 is started, and the force transmission rod on the U-shaped bearing frame 64 is driven to move towards the force transmission rod hole through the electric push rod 61, and the force transmission rod is inserted into the force transmission rod hole, so that the installation of two force transmission rods can be completed simultaneously; the installation auxiliary device is moved to the position of the next two force transmission rod holes through the moving mechanism, and adjustments and pushing are carried out again through the above steps until all the force transmission rods are installed.

[0035] The above are only the preferred and feasible embodiments of the present invention, and do not limit the scope of the rights of the present invention. All equivalent changes made by using the content of the specification and drawings of the present invention are included in the scope of the rights of the present invention.

Claims

1. A concrete pavement dowel rod installation auxiliary device, used to insert the dowel rod into the dowel rod hole of the fixing plate, characterized in that: The base mounting frame (1) comprises a base mounting frame (1) and a moving member (3), wherein the moving member (3) is used to drive the base mounting frame (1) to move, and the moving direction of the moving member (3) is perpendicular to the insertion direction of each force transmission rod; a plurality of circulating lower rod members (4) are arranged in the middle of the base mounting frame (1), a plurality of force transmission rods are placed inside the circulating lower rod members (4), and the circulating lower rod members (4) are connected to an ejection installation assembly (6), wherein the spacing between each ejection installation assembly (6) is equal to the spacing between two adjacent force transmission rod holes, and the ejection installation assembly (6) is used to place the force transmission rod dropped from the circulating lower rod members (4) and push the force transmission rod into the corresponding force transmission rod hole; A rotating rod assembly (2) is arranged in the middle of the base frame (1), and the top of the circulating lower rod component (4) is movably connected to the rotating rod assembly (2); A lifting assembly (5) is provided on one side of the circulating lower rod component (4), and the lifting assembly (5) is connected to the ejection installation assembly (6) and is used to drive the ejection installation assembly (6) to rise and fall; The lifting assembly (5) comprises a third motor (52), a second screw rod (55) and a second guide rod (57); a fixing frame (58) is provided at the lower ends of the two sliding sleeves (43); the second screw rod (55) is rotatably connected to the fixing frame (58); the second guide rod (57) is fixed on the fixing frame (58); a carrying frame (56) is threadedly connected to the second screw rod (55); the other end of the carrying frame (56) is slidably connected to the second guide rod (57); the carrying frame (56) is fixed to the ejection mounting assembly (6); and the third motor (52) is used to drive the second screw rod (55) to rotate; The ejection installation assembly (6) comprises an electric push rod (61), a U-shaped receiving frame (64) and a push plate (66); the U-shaped receiving frame (64) is fixed on the carrying frame (56); the U-shaped receiving frame (64) is connected to the rod outlet of the rod storage box (41) and is used to receive the force transmission rod of the rod storage box (41) that falls; the push plate (66) is arranged in the U-shaped receiving frame (64), and one end of the push plate (66) is fixed to the front end of the output rod (62) of the electric push rod (61); the electric push rod (61) is used to drive the push plate (66) to move in the U-shaped receiving frame (64); The circulating lower rod component (4) comprises a rod storage box (41) and a lower rod assembly (42); a plurality of force transmission rods are placed in the rod storage box (41); a plurality of inclined plates (421) are arranged in layers in the rod storage box (41); the inclined directions of two adjacent layers of inclined plates (421) are opposite, and each force transmission rod rolls downward layer by layer through each layer of inclined plates (421); the lower rod assembly (42) is arranged below the lower end of the bottom layer of inclined plates (421); and the force transmission rods on the bottom layer of inclined plates (421) are transported one by one to the rod outlet through the lower rod assembly (42).

2. The concrete pavement dowel rod installation auxiliary device according to claim 1, characterized in that: The moving member (3) comprises a first motor (33), a transmission rod (32) and a roller (38); an output pump of the first motor (33) is coaxially fixed to the transmission rod (32); a first synchronous wheel (34) is fixedly sleeved on the transmission rod (32); the roller (38) is rotatably connected to the base frame (1); a second synchronous wheel (36) is fixedly sleeved on the roller (38); and the first synchronous wheel (34) and the second synchronous wheel (36) are connected in transmission via a synchronous belt (35).

3. The concrete pavement dowel rod installation auxiliary device according to claim 1, characterized in that: The rotating rod assembly (2) comprises a second motor (23), a first screw rod (21) and a first guide rod (22), wherein the second motor (23) is used to drive the first screw rod (21) to rotate; the circulating lower rod components (4) are provided in two numbers, and each circulating lower rod component (4) is respectively connected to two sliding sleeves (43), one of which is threadedly connected to the first screw rod (21), and the other sliding sleeve (43) is slidably connected to the first guide rod (22); the first screw rod (21) is a forward and reverse screw rod, and when the second motor (23) drives the first screw rod (21) to rotate, it drives the two circulating lower rod components (4) to move relative to each other.

4. The concrete pavement dowel rod installation auxiliary device according to claim 1, characterized in that: A rubber pad (65) is arranged in the U-shaped receiving frame (64).

5. The concrete pavement dowel rod installation auxiliary device according to claim 1, characterized in that: The lower rod assembly (42) comprises a fourth motor (424) and a rotating column (422). The fourth motor (424) drives the rotating column (422) to rotate. A plurality of rotating plates (423) are radially arranged on the rotating column (422). When the fourth motor (424) drives the rotating column (422) to rotate, the rotating plates (423) sequentially move the force transmission rods to the rod outlet of the rod storage box (41).

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