A self-propelled hydraulic trestle

Abstract

This utility model discloses a self-propelled hydraulic trestle, belonging to the technical field of hydraulic trestle technology. This self-propelled hydraulic trestle includes a main body and an auxiliary mechanism. The main body includes a trestle body with a movable groove on one side of its upper end. Inside the trestle body, on both sides of the movable groove, are a pair of sliding grooves. The auxiliary mechanism includes a base disposed inside the movable groove. The base's two sides are slidably connected to the two pairs of sliding grooves. A support gear is rotatably connected to the center of the base's bottom interior. A turntable is fixedly installed on the upper end of the support gear. Rotating rollers are installed at the four corners of the base's bottom interior, with the tops of the rotating rollers rollingly connected to the bottom of the turntable. This utility model effectively improves the practicality of the self-propelled hydraulic trestle and has high practical value.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic trestle technology, specifically a self-propelled hydraulic trestle. Background Technology

[0002] In the construction of bridges, tunnels and other engineering projects, self-propelled hydraulic trestle bridges provide an important passage for operations such as concrete pouring.

[0003] Based on the above, the following problems were found: Currently, most self-propelled hydraulic trestle bridges on the market are not designed with the need for vehicle turning around in mind. After the concrete pouring work is completed, the vehicle can only choose to reverse away from the trestle bridge. When reversing on a self-propelled hydraulic trestle bridge, the driver's field of vision is limited. The guardrails, outriggers and other structures on both sides of the trestle bridge obstruct the view, making it difficult to fully observe the road conditions behind. Due to the failure to notice obstacles at the edge of the trestle bridge, the vehicle tires scrape against the trestle bridge guardrails, causing local deformation of the guardrails and damage to the vehicle tires. This not only delays the construction progress but also causes high repair costs.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a self-propelled hydraulic trestle bridge in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this utility model is to provide a self-propelled hydraulic trestle bridge to solve the problem mentioned in the background art that existing trestles cannot turn around and rely on reversing to get off the bridge.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A self-propelled hydraulic trestle includes a main body and an auxiliary mechanism. The main body includes a trestle body with a movable groove on one side of its upper end. A pair of sliding grooves are formed on both sides of the upper end of the movable groove inside the trestle body. The auxiliary mechanism includes a base disposed inside the movable groove. The base is slidably connected to the two pairs of sliding grooves on both sides. A support gear is rotatably connected to the center of the bottom of the base. A turntable is fixedly mounted on the upper end of the support gear. Rotating rollers are installed at the four corners of the bottom of the base, and the tops of the rotating rollers are rollingly connected to the bottom of the turntable.

[0008] Furthermore, a gear is rotatably connected to the inner bottom end of the base on one side of the supporting gear disk, and the gear meshes with the supporting gear disk.

[0009] The beneficial effect of adopting the above-mentioned further solution is that the gear meshes with the support gear plate to transmit the rotational motion, which is converted into the rotational motion of the turntable. By controlling the rotation of the gear, the turntable can be precisely steered, which meets the needs of engineering vehicles to turn around on the trestle body.

[0010] Furthermore, a speed reducer is fixedly installed on one side of the bottom end of the base, and the output end of the speed reducer is connected to a gear transmission.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the reducer lowers the output speed of the hydraulic motor while increasing the torque, making the gear rotation smoother and more controllable, avoiding excessive steering impact of the turntable due to excessive speed, and improving the steering stability of engineering vehicles.

[0012] Furthermore, a hydraulic motor is fixedly installed on one side of the reducer, and the output end of the hydraulic motor is connected to the input end of the reducer.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the hydraulic motor provides power, and by utilizing the high efficiency and stability of hydraulic transmission, the reducer, gears and support gear plate work together to achieve continuous rotation of the turntable.

[0014] Furthermore, the bottom end of the trestle body is equipped with fixing plates on both sides of the bottom end of the movable groove, and a pair of first movable seats are fixedly installed on the opposing surfaces of the pair of fixing plates.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the fixing plate provides a stable installation base for the first movable seat and enhances the connection strength between the hydraulic telescopic rod and the trestle body.

[0016] Furthermore, a pair of second movable seats are fixedly installed at both ends of the base, and the second movable seats and the first movable seats are connected by a hydraulic telescopic rod through a pin.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the hydraulic telescopic rod is hinged between the first movable seat and the second movable seat, and the height of the base can be adjusted, which makes it convenient to lift the engineering vehicles located above the turntable inside the trestle body, and facilitates their turning in the external space.

[0018] Furthermore, wedge-shaped support blocks are fixedly installed on both sides of the fixing plate, and the top of the wedge-shaped support blocks is fixedly connected to the bottom of the trestle body.

[0019] The beneficial effects of adopting the above-mentioned further solution are that the wedge-shaped support block increases the contact area between the fixed plate and the trestle body, disperses the stress at the connection, enhances the compressive strength and deformation resistance of the overall structure, and ensures the stability of the connection between the trestle body and the auxiliary mechanism.

[0020] Furthermore, the upper surface of the turntable is provided with several anti-slip strips, and the rotating roller is made of bearing steel.

[0021] The beneficial effects of adopting the above-mentioned further solutions are that the anti-slip strips increase the friction on the turntable surface, preventing engineering vehicles from sliding on the turntable and improving operational safety. The bearing steel rotary rollers have the characteristics of high strength, high wear resistance and low coefficient of friction, ensuring stable rotation of the turntable for a long time, reducing wear and maintenance frequency, and extending the service life of auxiliary mechanisms.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: The main body of the self-propelled hydraulic trestle provides installation space and sliding rails for the auxiliary mechanism through its movable groove and sliding track. The base can move along the sliding track to realize the lifting and lowering of the base. The support gear plate of the auxiliary mechanism cooperates with the turntable, and the rotating roller supports the turntable, enabling it to rotate flexibly, which facilitates the turning of engineering vehicles operating on the trestle body. The hydraulic telescopic rod connects the first movable seat and the second movable seat, which can drive the base to lift and lower, so that when the engineering vehicle turns around, it can be raised from inside the trestle body, increasing the turning and turning space. The gear meshes with the support gear plate to transmit the rotational motion, which is converted into the rotational motion of the turntable. By controlling the rotation of the gear, the turntable can be precisely turned, meeting the needs of engineering vehicles to turn around on the trestle body. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the self-propelled hydraulic trestle disclosed in an embodiment of the present utility model. Figure 1 ;

[0024] Figure 2 This is a three-dimensional structural diagram of the self-propelled hydraulic trestle disclosed in an embodiment of the present utility model. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the three-dimensional cross-section of the self-propelled hydraulic trestle disclosed in an embodiment of the present invention. Figure 1 ;

[0026] Figure 4 This is a schematic diagram of the three-dimensional cross-section of the self-propelled hydraulic trestle disclosed in an embodiment of the present invention. Figure 2 ;

[0027] Figure 5 This is a three-dimensional structural diagram of the base of the self-propelled hydraulic trestle disclosed in an embodiment of the present utility model.

[0028] In the diagram: 1. Main body; 101. Trestle body; 102. Fixing plate; 103. First movable seat; 104. Hydraulic telescopic rod; 105. Movable groove; 106. Slide groove; 107. Wedge-shaped support block; 2. Auxiliary mechanism; 201. Base; 202. Reducer; 203. Hydraulic motor; 204. Support gear plate; 205. Rotating roller; 206. Second movable seat; 207. Gear; 208. Turntable. Detailed Implementation

[0029] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0030] Example 1

[0031] Please see Figures 1-5 This utility model provides a technical solution: a self-propelled hydraulic trestle, including a main body 1 and an auxiliary mechanism 2. The main body 1 includes a trestle body 101, with a movable groove 105 on one side of the upper end of the trestle body 101. A pair of sliding grooves 106 are provided on both sides of the upper end of the movable groove 105 inside the trestle body 101. The auxiliary mechanism 2 includes a base 201, which is disposed inside the movable groove 105. Both sides of the base 201 are slidably connected to the two pairs of sliding grooves 106. A support gear 204 is rotatably connected to the center of the bottom end of the base 201. A turntable 208 is fixedly installed on the upper end of the support gear 204. Rotating rollers 205 are installed at the four corners of the bottom end of the base 201. The top of the rotary roller 205 is rolledly connected to the bottom of the turntable 208. The movable groove 105 and the slide 106 of the main body 1 provide installation space and sliding track for the auxiliary mechanism 2. The base 201 can move along the slide 106 to realize the lifting and lowering of the base 201. The support gear 204 of the auxiliary mechanism 2 cooperates with the turntable 208. The rotary roller 205 supports the turntable 208, allowing it to rotate flexibly, which facilitates the engineering vehicle operating on the auxiliary trestle body 101 to turn around on the spot. The hydraulic telescopic rod 104 connects the first movable seat 103 and the second movable seat 206, which can drive the base 201 to rise and fall, so that when the engineering vehicle turns around, it can be raised from inside the trestle body 101, increasing the space for turning around.

[0032] Please see Figures 1-5The base 201 has a gear 207 rotatably connected to one side of the supporting gear disk 204 at its inner bottom end. The gear 207 meshes with the supporting gear disk 204. A reducer 202 is fixedly installed on one side of the bottom end of the base 201. The output end of the reducer 202 is connected to the gear 207. A hydraulic motor 203 is fixedly installed on one side of the reducer 202. The output end of the hydraulic motor 203 is connected to the input end of the reducer 202. Fixed plates 102 are installed on both sides of the bottom end of the trestle body 101 at the bottom end of the movable groove 105. A pair of first movable seats 103 are fixedly installed on the facing surfaces of the pair of fixed plates 102. A pair of second movable seats 206 are fixedly installed at both ends of the base 201. The second movable seats 206 and the first movable seats 103 are hinged to each other by a pin with a hydraulic telescopic rod 104. The gear 207 meshes with the supporting gear disk 204 to convert the rotational motion into the rotational motion of the turntable 208. The rotation of the gear 207 is controlled by the gear 207. The adjustable angle enables precise steering of the turntable 208, meeting the needs of engineering vehicles to turn around on the trestle body 101. The reducer 202 reduces the output speed of the hydraulic motor 203 while increasing the torque, making the rotation of the gear 207 smoother and more controllable, avoiding excessive steering impact of the turntable 208 due to excessive speed, and improving the steering stability of engineering vehicles. The hydraulic motor 203 provides power, utilizing the efficiency and stability of hydraulic transmission to drive the reducer 202, gear 207 and support gear plate 204 to work together to achieve continuous rotation of the turntable 208. The fixed plate 102 provides a stable installation base for the first movable seat 103, enhancing the connection strength between the hydraulic telescopic rod 104 and the trestle body 101. The hydraulic telescopic rod 104 is hinged between the first movable seat 103 and the second movable seat 206, and the height of the adjustable base 201 can be adjusted to facilitate the lifting of engineering vehicles located above the turntable 208 inside the trestle body 101, making it easier for them to turn in the external space.

[0033] Please see Figures 1-5 A pair of fixed plates 102 are each fixedly mounted with a wedge-shaped support block 107 on their opposite sides. The top of the wedge-shaped support block 107 is fixedly connected to the bottom of the trestle body 101. The upper surface of the turntable 208 is provided with several anti-slip strips. The rotating roller 205 is made of bearing steel. The wedge-shaped support block 107 increases the contact area between the fixed plate 102 and the trestle body 101, disperses the stress at the connection, enhances the compressive strength and deformation resistance of the overall structure, and ensures the stability of the connection between the trestle body 101 and the auxiliary mechanism 2. The anti-slip strips increase the surface friction of the turntable 208, prevent engineering vehicles from sliding on the turntable 208, and improve operational safety. The rotating roller 205 made of bearing steel has the characteristics of high strength, high wear resistance and low friction coefficient, ensuring that the turntable 208 rotates stably for a long time, reducing wear and maintenance frequency, and extending the service life of the auxiliary mechanism 2.

[0034] Working principle

[0035] In use, when an engineering vehicle needs to turn around on the trestle body 101, the hydraulic telescopic rod 104 is hinged between the first movable seat 103 and the second movable seat 206. Controlling the extension of the hydraulic telescopic rod 104 raises the base 201 from the movable slot 105, causing the turntable 208 to rise, allowing the engineering vehicle to detach from the surface of the trestle body 101 and gain greater turning space. The hydraulic motor 203 provides power, which, after being reduced in speed and increased in torque by the reducer 202, drives the gear 207 to rotate. The gear 207 meshes with the support gear plate 204, transmitting the rotational motion to the support gear plate 204, thereby causing the turntable 208 to rotate smoothly. The roller 205 is made of bearing steel and supports the turntable 208 in the base 201. Its low friction characteristics ensure flexible rotation. The anti-slip strip on the upper surface of the turntable 208 increases the friction with the engineering vehicle and prevents the vehicle from slipping when turning. After the engineering vehicle completes the U-turn, the hydraulic telescopic rod 104 retracts, driving the base 201 down along the slide 106 and back into the movable slot 105 of the trestle body 101, so that the engineering vehicle can fall back onto the trestle body 101 and continue to travel. During this process, the fixed plate 102 and the wedge-shaped support block 107 ensure that the trestle body 101 and the auxiliary mechanism 2 are firmly connected, ensuring that the entire U-turn operation is carried out safely and efficiently.

[0036] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

[0037] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Based on the technical solution of the present utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the present utility model.

Claims

1. A self-propelled hydraulic trestle bridge, characterized in that, The system includes a main body (1) and an auxiliary mechanism (2). The main body (1) includes a trestle body (101). A movable groove (105) is provided on one side of the upper end of the trestle body (101). A pair of sliding grooves (106) are provided on both sides of the upper end of the movable groove (105) inside the trestle body (101). The auxiliary mechanism (2) includes a base (201). The base (201) is located inside the movable groove (105). The two sides of the base (201) are slidably connected to the two pairs of sliding grooves (106) respectively. A support toothed disc (204) is rotatably connected at the center of the bottom end of the base (201). A turntable (208) is fixedly installed on the upper end of the support toothed disc (204). Rotating rollers (205) are installed at the four corners of the bottom end of the base (201). The top of the rotating rollers (205) is rotatably connected to the bottom end of the turntable (208).

2. The self-propelled hydraulic trestle bridge according to claim 1, characterized in that, The bottom of the base (201) is rotatably connected to a gear (207) on one side of the support gear disk (204), and the gear (207) meshes with the support gear disk (204).

3. A self-propelled hydraulic trestle bridge according to claim 2, characterized in that, A speed reducer (202) is fixedly installed on one side of the bottom end of the base (201), and the output end of the speed reducer (202) is connected to the gear (207) for transmission.

4. A self-propelled hydraulic trestle bridge according to claim 3, characterized in that, A hydraulic motor (203) is fixedly installed on one side of the reducer (202), and the output end of the hydraulic motor (203) is connected to the input end of the reducer (202) for transmission.

5. A self-propelled hydraulic trestle bridge according to claim 1, characterized in that, The bottom end of the trestle body (101) is located on both sides of the bottom end of the movable groove (105) and a pair of first movable seats (103) are fixedly installed on the opposing surfaces of the pair of fixed plates (102).

6. A self-propelled hydraulic trestle bridge according to claim 5, characterized in that, A pair of second movable seats (206) are fixedly installed at both ends of the base (201). The second movable seats (206) and the first movable seat (103) are connected by a hydraulic telescopic rod (104) through a pin.

7. A self-propelled hydraulic trestle bridge according to claim 6, characterized in that, A wedge-shaped support block (107) is fixedly installed on the opposite sides of a pair of fixed plates (102), and the top of the wedge-shaped support block (107) is fixedly connected to the bottom of the trestle body (101).

8. A self-propelled hydraulic trestle bridge according to claim 1, characterized in that, The upper surface of the turntable (208) is provided with several anti-slip strips, and the rotary roller (205) is made of bearing steel.

Images