Novel inclined frame trolley system for small ship

Abstract

The invention belongs to the technical field of mechanical slideway equipment, and particularly discloses a novel inclined frame trolley system for a small ship, which comprises inclined frame trolley main bodies arranged at the front end and the rear end of the ship, the inclined frame trolley main body positioned at the front end of the ship is a bow trolley, and the inclined frame trolley main body positioned at the rear end of the ship is a stern trolley; one or more bow cars and one or more stern cars are arranged according to ship load characteristics; each inclined frame trolley body comprises an upper layer structure, a lower layer structure and a supporting structure arranged between the upper layer structure and the lower layer structure. A conventional integral wedge-shaped shipway is replaced by the inclined frame trolley set. The structure is light, and economical efficiency is good; the transverse moving trolley can conveniently pass through the inclined frame trolley, and the arrangement space of the slipway can be saved; the upper surface of the trolley is a horizontal plane through lifting, namely on a slope slide way, in structural design of the trolley, the design is unique and novel, use is convenient, and the equipment maintenance amount is small; and the flexibility is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical slideway equipment, and particularly to a new type of inclined frame trolley system for small ships. Background Art

[0002] A slideway is a building extending from the shore into the water area. The slideway has a certain slope and is equipped with tracks, and mechanical equipment is used to tow ships ashore or lower them into the water. A mechanized device - a wedge-shaped ship frame and its towing system are configured on the slideway. The wedge-shaped ship frame is also divided into a longitudinal ship frame and a transverse ship frame according to the slideway form. The surface of the wedge-shaped ship frame is horizontal, and the cross-section along the track direction is wedge-shaped. The height difference at both ends matches the slope at the head of the slideway, as Figure 1 shown.

[0003] However, this type of wedge-shaped ship frame system is generally supported on the track by multiple sets of running wheels. The running wheels are arranged to cover the entire length of the ship frame, and the length of the ship frame is not less than the length of the ship. The ship is on the wedge-shaped ship frame and is towed by the steel wire rope of the towing system to transport the ship and the ship frame together into the water or tow the ship from the water to the shore. The ship launching and docking operations are completed. The structure is bulky and the flexibility is poor. Summary of the Invention

[0004] The purpose of the present invention is to provide a new type of inclined frame trolley system for small ships to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A new type of inclined frame trolley system for small ships, including inclined frame trolley bodies arranged at the front end and the rear end of the ship. The inclined frame trolley body at the front end of the ship is the bow trolley, and the inclined frame trolley body at the rear end of the ship is the stern trolley; one or more bow trolleys and stern trolleys are respectively provided, and are set according to the load characteristics of the ship; each inclined frame trolley body includes an upper structure, a lower structure, and a support structure arranged between the upper structure and the lower structure.

[0006] Preferably, the upper structure includes a rectangular tabletop, end plates, and a concave spherical support surface; the end plates are arranged on the sides of the rectangular tabletop, a connection hole is opened in the middle of the end plates, and the concave spherical support surfaces are symmetrically arranged below the rectangular tabletop. The connection holes on the end plates and the concave spherical support surfaces are used to cooperate with the support structure to connect with the lower structure.

[0007] Preferably, the lower structure includes a frame structure, a running wheel group structure, and an L-shaped card slot; the running wheel group structure is arranged below the frame structure, and the L-shaped card slot is arranged on the side of the frame structure.

[0008] Preferably, the support structure includes a pull plate, a pin shaft, a hydraulic cylinder, and a spherical top surface of the piston rod; the pull rod is inserted into the L-shaped card slot, the top end of the pull rod is connected to the connection hole through the pin shaft, the hydraulic cylinder is arranged on the frame structure, the spherical top surface of the piston rod is arranged at the output end of the hydraulic cylinder, and the spherical top surface of the piston rod cooperates with the concave spherical support surface. The pull plate structure can move up and down in the card slot to play a guiding role. Ensure that the pull plate structure is always vertical. Through hydraulic series connection, automatic pressure balance is achieved to ensure that the upper plane is always horizontal.

[0009] Preferably, several groups of the hydraulic cylinders are provided, each group of hydraulic cylinders is two respectively, and a walking wheel group structure is arranged on both the left and right sides of each group of hydraulic cylinders. The walking wheel group structure adopts the form of balance wheels, and a pair of front and rear ones respectively fall on the tracks.

[0010] Preferably, the walking wheel group structure includes a large cross beam, a small cross beam, a cross beam shaft, a walking wheel main body, and a U-shaped hole opened on the large cross beam. The large cross beam is fixed to the frame structure. The small cross beam is symmetrically arranged inside the large cross beam and is connected to the large cross beam through the cross beam shaft. The walking wheel main body is arranged at both ends of the small cross beam. The small balance beam can rotate around the balance beam shaft. After being loaded, it can ensure that the load of each pair of walking wheels is uniform. The walking wheel main body is a double-rim walking wheel. A pair of walking wheel main bodies are connected to the small balance beam through a walking wheel shaft, and a sliding bearing is arranged between the walking wheel main body and the walking wheel shaft. The walking wheel main body can rotate.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The present invention uses an inclined frame trolley group (bow trolley and stern trolley) to replace the conventional integral wedge-shaped ship frame. It has a light structure and good economy; and it is convenient for the traversing trolley to pass through between the inclined frame trolleys, which is beneficial to saving the layout space of the shipbuilding berth; the design of the trolley's own structure utilizes lifting, that is, on the slope slideway, the upper surface of the inclined frame trolley group is the same horizontal plane. The design is unique and novel, easy to use, and the equipment maintenance amount is small; the flexibility is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the existing inclined frame trolley;

[0014] Figure 2 It is a schematic side structure diagram of the present invention;

[0015] Figure 3 It is a schematic overall structure diagram of the present invention;

[0016] Figure 4 It is a schematic structural diagram of the working state of the present invention.

[0017] In the figure: 1. Upper structure; 100. Rectangular tabletop; 101. End plate; 102. Concave spherical support surface; 2. Support structure; 200. Pulling plate; 201. Pin shaft; 202. Hydraulic cylinder; 203. Spherical top surface of piston rod; 3. Lower structure; 300. Frame structure; 301. Road wheel group structure; 3011. Large cross beam; 3012. Small balance beam; 3013. Balance beam shaft; 3014. Road wheel body; 3015. U-shaped hole; 302. L-shaped card slot. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0020] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] Please refer to Figures 2 - 4 , the present invention provides a technical solution: a new type of inclined frame trolley system for small ships, including inclined frame trolley bodies arranged at the front and rear ends of the ship. The inclined frame trolley body at the front end of the ship is the bow trolley, and the inclined frame trolley body at the rear end of the ship is the stern trolley; one or more bow trolleys and stern trolleys are respectively provided, which are set according to the load characteristics of the ship; each inclined frame trolley body includes an upper structure 1, a lower structure 3, and a support structure 2 arranged between the upper structure 1 and the lower structure 3.

[0022] The upper structure 1 includes a rectangular tabletop 100, end plates 101, and a concave spherical support surface 102; the end plates 101 are arranged on the sides of the rectangular tabletop 100, connection holes are provided in the middle of the end plates 101, and the concave spherical support surfaces 102 are symmetrically arranged below the rectangular tabletop 100. The connection holes on the end plates 101 and the concave spherical support surfaces 102 are used to cooperate with the support structure 2 to connect with the lower structure 3.

[0023] The lower structure 3 includes a frame structure 300, a running wheel group structure 301, and an L-shaped card slot 302; the running wheel group structure 301 is arranged below the frame structure 300, and the L-shaped card slot 302 is arranged on the side of the frame structure 300.

[0024] The support structure 2 includes a pull plate 200, a pin shaft 201, a hydraulic cylinder 202, and a spherical top surface 203 of the piston rod; the pull rod is inserted into the L-shaped card slot 302, the top end of the pull rod is connected to the connection hole through the pin shaft 201, the hydraulic cylinder 202 is arranged on the frame structure 300, the spherical top surface 203 of the piston rod is arranged at the output end of the hydraulic cylinder 202, and the spherical top surface 203 of the piston rod cooperates with the concave spherical support surface 102. The structure of the pull plate 200 can move up and down in the card slot to play a guiding role. Ensure that the structure of the pull plate 200 is always vertical.

[0025] A number of groups of the hydraulic cylinders 202 are provided, each group of the hydraulic cylinders 202 has two respectively, and the running wheel group structures 301 are arranged on the left and right sides of each group of the hydraulic cylinders 202. The running wheel group structure 301 adopts the form of balance wheels, and a pair of front and rear ones respectively rest on the tracks. Through hydraulic series connection, the automatic balance of pressure is realized to ensure that the upper plane is always horizontal.

[0026] The running wheel group structure 301 includes a large cross beam 3011, a small cross beam, a cross beam shaft, a running wheel main body 3014, and a U-shaped hole 3015 opened on the large cross beam 3011. The large cross beam 3011 is fixed to the frame structure 300. The small cross beam is symmetrically arranged inside the large cross beam 3011 and is connected to the large cross beam 3011 through the cross beam shaft. The running wheel main body 3014 is arranged at both ends of the small cross beam. The small balance beam 3012 can rotate around the balance beam shaft 3013. After being loaded, the load of each pair of running wheels can be ensured to be uniform. The running wheel main body 3014 is a double-rim running wheel. A pair of running wheel main bodies 3014 are connected to the small balance beam 3012 through a running wheel shaft, and a sliding bearing is arranged between the running wheel main body 3014 and the running wheel shaft. The running wheel main body 3014 can rotate.

[0027] In summary, the inclined frame trolley system is mainly composed of a bow car and a stern car. The bow car and the stern car have similar structures. During operation, the jacking stroke of the stern car hydraulic cylinder 202 is higher than that of the bow car. The positions of the bow car and the stern car can be adjusted according to the ship type.

[0028] According to the load characteristics of the ship, two bow vehicles and two stern vehicles can also be set up. They need to be connected in groups and each vehicle group also needs to be hydraulically connected in series to ensure even load distribution for each vehicle group.

[0029] The hydraulic pump station is set as a mobile station, equipped with a special vehicle, which serves as the initial oil supply for the hydraulic cylinder 202 and the maintenance compensation oil supply.

[0030] The inclined frame trolley system runs on several ramp tracks. The direction along the track is defined as the width direction of the trolley, and the direction perpendicular to the track is defined as the length direction of the trolley.

[0031] Each inclined frame trolley is divided into an upper structure 1 and a lower structure 3. The upper structure 1 is a steel structure frame body, with a steel plate laid on its upper surface, forming a rectangular tabletop 100. In the middle of the end plate 101 in the width direction of the upper structure 1, there is an opening, corresponding to the circular hole of the upper semi-circular structure of the pull plate 200 structure. The pull plate 200 structure is connected to the upper structure 11 as a whole through a pin shaft 201, and the upper structure 1 can rotate relative to the pin shaft 201. On the back of the rectangular tabletop 100, two groups of concave spherical support surfaces 102 are symmetrically arranged along the length direction, which cooperate with the spherical top surface 203 of the piston rod of the hydraulic cylinder 202 of the lower structure 3. The upper structure 1 is supported by the paired hydraulic cylinders 202 of the lower structure 3 and can rotate relative to the pin shaft 201 as a hinge point.

[0032] The lower structure 3 is composed of a frame structure 300, several pairs of hydraulic cylinders 202, and several pairs of wheel set structures 301. At the middle parts of both ends in the length direction of the frame structure 300, inverted L-shaped clamping grooves are arranged upward. The structure of the pull plate 200 can move up and down in the clamping grooves to play a guiding role and ensure that the structure of the pull plate 200 is always vertical. Several groups of two paired hydraulic cylinders 202 are evenly arranged on the frame structure 300. The paired hydraulic cylinders 202 are connected in series through a hydraulic oil circuit. According to the equal pressure principle, uniform loading of each hydraulic cylinder 202 of the trolley is realized. That is, when the trolley is on a slope track, due to the series connection of the hydraulic oil circuit, the hydraulic oil will flow to the hydraulic cylinder 202 at the relatively lower position on the slope, and its piston rod will rise; the piston rod of the hydraulic cylinder 202 at the relatively higher position on the slope will drop until the piston rods are at the same elevation and support the upper structure 1 at the same time to support the ship load. At this time, the rectangular tabletop 100 of the upper structure 1 is horizontal. Wheel set structures 301 are arranged on the left and right of each hydraulic cylinder 202. The wheel set structure 301 adopts the form of balance wheels, and a pair in the front and back respectively rest on the track. The wheel set structure 301 is composed of a large cross beam 3011, two small balance beams 3012, two shafts of the small balance beams 3012, and four wheel main bodies 3014. A large cross beam 3011 has a box-shaped cross-section, and U-shaped holes 3015 are arranged downward at both ends in the length direction. The two small balance beams 3012 are connected through two shafts of the small balance beams 3012. Wheels are installed at both ends of the small balance beam 3012. The small balance beam 3012 can rotate around the shaft of the small balance beam 3012. After being loaded, it can ensure uniform loading of each pair of wheel main bodies 3014. The wheel main body 3014 is a double-flange wheel. A pair of wheel main bodies 3014 are connected to the small balance beam 3012 through a wheel shaft, and a sliding bearing is arranged between the wheel main body 3014 and the wheel shaft. The wheel main body 3014 can rotate.

[0033] The difference between the bow trolley and the stern trolley is that the stroke of the hydraulic cylinder 202 of the stern trolley is greater than that of the bow trolley. And it can be configured as a double-bow trolley or a double-stern trolley according to the ship load requirements.

[0034] It should be noted that the entire device is towed by a winch, and the total control console controls its hydraulic system, towing, etc. Since the matching electronic control system is a common device and belongs to the existing mature technology, it will not be elaborated here.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of inclined frame trolley system for small ships, characterized in that: It includes the inclined trolley main bodies arranged at the front and rear ends of the ship. The inclined trolley main body located at the front end of the ship is the bow trolley, and the inclined trolley main body located at the rear end of the ship is the stern trolley; One or more bow trolleys and stern trolleys are respectively arranged, which are set according to the load characteristics of the ship; Each inclined trolley main body includes an upper structure (1), a lower structure (3), and a support structure (2) arranged between the upper structure (1) and the lower structure (3).

2. The novel inclined frame trolley system for small ships according to claim 1, characterized in that: The upper structure (1) includes a rectangular tabletop (100), end plates (101), and a concave spherical support surface (102); The end plates (101) are arranged on the sides of the rectangular tabletop (100). A connection hole is opened in the middle of the end plates (101). The concave spherical support surfaces (102) are symmetrically arranged below the rectangular tabletop (100).

3. A novel inclined frame trolley system for small ships according to claim 1, characterized in that: The lower structure (3) includes a frame structure (300), a running wheel group structure (301), and an L-shaped card slot (302); The running wheel group structure (301) is arranged below the frame structure (300), and the L-shaped card slot (302) is arranged on the side of the frame structure (300).

4. A novel inclined frame trolley system for small ships according to claims 1-3, characterized in that: The support structure (2) includes a pull plate (200), a pin shaft (201), a hydraulic cylinder (202), and a spherical top surface of the piston rod (203); The pull rod is inserted into the L-shaped card slot (302). The top end of the pull rod is connected to the connection hole through the pin shaft (201). The hydraulic cylinder (202) is arranged on the frame structure (300). The spherical top surface of the piston rod (203) is arranged at the output end of the hydraulic cylinder (202). The spherical top surface of the piston rod (203) cooperates with the concave spherical support surface (102).

5. A novel inclined frame trolley system for small ships according to claim 4, characterized in that: A number of groups of the hydraulic cylinders (202) are arranged. Each group of the hydraulic cylinders (202) has two respectively, and the running wheel group structures (301) are arranged on the left and right sides of each group of the hydraulic cylinders (202).

6. A novel inclined frame trolley system for small ships according to claims 4-5, characterized in that: The running wheel group structure (301) includes a large cross beam (3011), a small cross beam, a cross beam shaft, a running wheel main body (3014), and a U-shaped hole (3015) opened on the large cross beam (3011); The large cross beam (3011) is fixed to the frame structure (300). The small cross beams are symmetrically arranged inside the large cross beam (3011) and are connected to the large cross beam (3011) through the cross beam shaft. The running wheel main bodies (3014) are arranged at both ends of the small cross beams.

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