Portable tool for installing engine crankshaft

Abstract

The utility model provides a portable engine crankshaft installation tool which comprises a fixing device, a movable sliding rail, a balancer, a guide mechanism, a balance air cylinder, a rotating mechanism, an operation handle and a crankshaft lifting hook. The upper end of the guide mechanism is in sliding fit with the movable sliding rail, the lower end of the guide mechanism is connected with the rotating mechanism, the balancer is installed on the guide mechanism and connected with the rotating mechanism, and the balance air cylinder is installed on the guide mechanism and connected with the rotating mechanism. The utility model has the beneficial effects that the engine crankshaft can be conveniently mounted, the engine crankshaft is convenient to transport, the engine crankshaft is assisted to be mounted on an engine cylinder body, the labor intensity is reduced, and the occurrence of collision damage is avoided.

Description

Technical Field

[0001] The utility model relates to a tool fixture, in particular to a portable tool fixture for installing an engine crankshaft. Background Art

[0002] At present, no auxiliary tooling is used to install the engine crankshaft to the engine cylinder. The weight of a crankshaft is about 23 pounds. If the crankshaft is manually moved to the cylinder, it needs to be bent frequently, which may cause waist injuries to employees during the installation process. At the same time, there is a safety hazard that the employees may become tired and unstable when manually moving the crankshaft, causing the crankshaft to fall. In addition, it is easy to damage the crankshaft or the surface of the assembly parts due to manual installation.

[0003] Therefore, how to provide a tool that can assist the engine crankshaft to be installed to the engine cylinder block to reduce the labor intensity of manual operation. Summary of the invention

[0004] In order to solve the problems in the prior art, the utility model provides a portable tool for installing an engine crankshaft.

[0005] The utility model provides a portable installation tool for engine crankshafts, comprising a fixing device, a movable slide rail, a balancer, a guide mechanism, a balancing cylinder, a rotating mechanism, an operating handle and a crankshaft hook, wherein the movable slide rail is horizontally arranged, and is installed on the fixing device, the upper end of the guide mechanism is slidably matched with the movable slide rail, the lower end of the guide mechanism is connected to the rotating mechanism, the balancer is installed on the guide mechanism, the balancer is connected to the rotating mechanism, the balancing cylinder is installed on the guide mechanism, the balancing cylinder is connected to the rotating mechanism, the rotating mechanism is connected to the crankshaft hook, and the operating handle is installed on the rotating mechanism.

[0006] As a further improvement of the utility model, the fixing device includes at least four fixed brackets, the movable slide rail includes a left transverse slide rail, a right transverse slide rail and a longitudinal slide rail, the upper ends of all the fixed brackets are connected to the workstation columns, the lower ends of at least two fixed brackets are connected to the left transverse slide rail, the lower ends of at least two fixed brackets are connected to the right transverse slide rail, and the left and right ends of the longitudinal slide rail are respectively slidably matched with the left transverse slide rail and the right transverse slide rail.

[0007] As a further improvement of the utility model, the balancer includes a hoist sling, the hoist sling is connected to the upper end of the guide mechanism through a hook, and the wire rope of the hoist sling is connected to the rotating mechanism.

[0008] As a further improvement of the utility model, the guide mechanism includes a guide mechanism mounting base plate and at least two guide rods, the upper ends of the guide rods slidingly cooperate with the longitudinal slide rails, the lower ends of the guide rods are mounted on the guide mechanism mounting base plate, and the telescopic rods of the guide rods are connected to the rotating mechanism.

[0009] As a further improvement of the utility model, the rotating mechanism includes a rotating upper base plate, a rotating bearing and a rotating lower base plate. The rotating upper base plate is rotatably connected to the rotating lower base plate through the rotating bearing, the wire rope of the hoist sling is connected to the rotating upper base plate, the telescopic rod of the guide rod is connected to the rotating upper base plate, the operating handle is installed on the rotating lower base plate, and the crankshaft hook is installed on the rotating lower base plate.

[0010] As a further improvement of the utility model, the cylinder body of the balancing cylinder is installed on the guide mechanism mounting base plate, and the piston rod of the balancing cylinder is connected to the rotating upper base plate.

[0011] As a further improvement of the utility model, a lifting switch is provided on the operating handle, and the lifting switch is connected to the balancing cylinder through an air valve.

[0012] As a further improvement of the present invention, a protective sleeve is installed on the outer surface of the crankshaft hook.

[0013] The beneficial effect of the utility model is that through the above scheme, a portable engine crankshaft installation tool is provided, which can be used for the portable installation of the engine crankshaft, facilitates the transportation of the engine crankshaft, and assists in installing the engine crankshaft to the engine cylinder block, reduces labor intensity, and avoids the occurrence of bumps. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other solutions can be obtained based on these drawings without paying creative work.

[0015] Figure 1 The utility model is a front schematic diagram of a portable tooling for installing an engine crankshaft.

[0016] Figure 2 The utility model is a side schematic diagram of a portable tool for installing an engine crankshaft.

[0017] Figure 3 The utility model is a partial schematic diagram of a portable tooling for installing an engine crankshaft.

[0018] Figure 4 The utility model is a partial schematic diagram of a portable tooling for installing an engine crankshaft.

[0019] Figure 5 The utility model is a partial front schematic diagram of a portable tool for installing an engine crankshaft. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 cannot be understood as limiting the scope of protection of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figures 1 to 5 As shown, a portable tool for installing an engine crankshaft, which is also called a hanger, includes a fixing device 1, a movable slide rail 2, a balancer 3, a guide mechanism 4, a balancing cylinder 5, a rotating mechanism 6, an operating handle 7 and a crankshaft hook 8. The portable tool for installing an engine crankshaft is used for auxiliary installation of an engine crankshaft 9 (referred to as crankshaft).

[0025] The movable slide rail 2 is horizontally arranged, and is installed on the fixing device 1. The upper end of the guide mechanism 4 is slidably matched with the movable slide rail 2, and the lower end of the guide mechanism 4 is connected to the rotating mechanism 6. The balancer 3 is installed on the guide mechanism 3, and the balancer 3 is connected to the rotating mechanism 6. The balancing cylinder 5 is installed on the guide mechanism 4, and the balancing cylinder 5 is connected to the rotating mechanism 6. The rotating mechanism 6 is connected to the crankshaft hook 8, and the operating handle 7 is installed on the rotating mechanism 6.

[0026] The crankshaft hook 8 (referred to as the hook) is used for hoisting the engine crankshaft 9.

[0027] The fixing device 1 includes at least four fixing brackets 11. In this embodiment, four fixing brackets 11 are preferably used, but not limited thereto.

[0028] The movable slide rail 2 includes a left transverse slide rail 21 , a right transverse slide rail 22 and a longitudinal slide rail 23 .

[0029] The advantage of the movable slide rail 2 is that it can realize smooth, slow and precise movement, and is suitable for installation applications requiring fine control of the crankshaft.

[0030] The upper ends of the four fixed brackets 11 are connected to the workstation columns, the lower ends of the two fixed brackets 11 are connected to the left transverse slide rail 21, and the lower ends of the two fixed brackets 11 are connected to the right transverse slide rail 22. The left and right ends of the longitudinal slide rail 23 are respectively slidably matched with the left transverse slide rail 21 and the right transverse slide rail 22. The movable slide rail 2 is installed through the four fixed brackets 11, and the longitudinal slide rail 23 can be laterally translated under the action of the left transverse slide rail 21 and the right transverse slide rail 22.

[0031] The balancer 3 includes a hoist sling 31 , which is connected to the upper end of the guide mechanism 4 via a hook, and a steel wire rope 32 of the hoist sling 31 is connected to the rotating mechanism 6 .

[0032] When the hoist lifts the crankshaft, the hoist 31 applies an upward force to offset and balance the weight of the crankshaft. When the operator installs the crankshaft, he can achieve the lifting and lowering installation by gently applying downward pressure.

[0033] The guide mechanism 4 includes a guide mechanism mounting base plate 42 and at least two guide rods 41, the upper ends of the guide rods 41 are slidably matched with the longitudinal slide rail 23, the lower ends of the guide rods 41 are mounted on the guide mechanism mounting base plate 42, the telescopic rods 43 of the guide rods 41 are connected to the rotating mechanism 6, and the guide rods 41 can perform longitudinal translation under the action of the longitudinal slide rail 23. Therefore, under the action of the left transverse slide rail 21, the right transverse slide rail 22 and the longitudinal slide rail 23, the guide rods 41 can achieve transverse and longitudinal translation, which is beneficial to the transverse and longitudinal adjustment of the position.

[0034] The guide mechanism 4 can guide the lifting device to move upward or downward during lifting operations.

[0035] The rotating mechanism 6 includes a rotating upper base plate 61, a rotating bearing 62 and a rotating lower base plate 63. The rotating upper base plate 61 is rotatably connected to the rotating lower base plate 63 via the rotating bearing 62. The wire rope 32 of the hoist sling 31 is connected to the rotating upper base plate 61. The telescopic rod 43 of the guide rod 41 is connected to the rotating upper base plate 61. The operating handle 7 is installed on the rotating lower base plate 63. The crankshaft hook 8 is installed on the rotating lower base plate 63. Under the action of the rotating mechanism 6, the crankshaft hook 8 can perform rotational motion, thereby realizing the rotation adjustment of the engine crankshaft 9.

[0036] The cylinder body of the balancing cylinder 5 is mounted on the guide mechanism mounting base plate 42 , and the piston rod of the balancing cylinder 5 is connected to the rotating upper base plate 61 .

[0037] When the crankshaft hook 8 lifts the engine crankshaft 9 , the balance cylinder 5 is operated to retract upward, driving the rotating mechanism 6 to lift the engine crankshaft 9 .

[0038] The operating handle 7 is provided with a lifting switch 71, which is connected to the balancing cylinder 5 through an air valve. The operation of the balancing cylinder 5 can be controlled by the lifting switch 71. The lifting switch 71 ventilates and cuts off the balancing cylinder 5 through the air valve to drive the crankshaft hook 8 to move up and down.

[0039] The crankshaft hook 8 includes at least two iron hooks.

[0040] The crankshaft hook 8 hooks the second and third crankshaft connecting rod journals of the engine crankshaft 9. Under the action of gravity, the engine crankshaft 9 maintains a fixed posture and is firmly hooked on the crankshaft hook 8, thereby ensuring the installation position accuracy of the engine crankshaft 9.

[0041] The outer surface of the crankshaft hook 8 is provided with a protective cover, for example, a structure of an iron hook covered with plastic can be adopted, which is easy to process and has a small mass, is not easy to scratch the surface of the parts, and plays a role in protecting the parts.

[0042] Considering the product weight and ergonomics, the design of the tooling controls the movement of the cylinder through the air pressure control system of the balance cylinder 5, thereby realizing the up and down movement of the hoisted crankshaft. When the hoist hooks the crankshaft, the design uses a hoist balance crane to assist in lifting the workpiece, thereby achieving load balance, and manually operating the cylinder to move upward to lift the crankshaft.

[0043] When installing the crankshaft, manually apply downward force to keep the center of gravity of the sling consistent with the center of gravity of the load, thereby achieving load balance. Achieve smooth, slow and precise installation on the cylinder block.

[0044] The use of this tooling not only improves the production rhythm, but also reduces the ergonomics during operation, and reduces the number of employees at the workstation from two to one, reducing labor costs.

[0045] The utility model provides a portable engine crankshaft installation tool, which has the following advantages:

[0046] 1. After the workpiece is moved, it can be moved forward and backward, left and right, up and down, and rotated to adjust the position;

[0047] 2. Reduce labor intensity through the application of auxiliary tooling;

[0048] 3. It prevents employees from using brute force to damage the surface of parts during operation, reduces the scrapping of parts, reduces one employee, and reduces the cycle time by 15 seconds, saving approximately RMB 120,000 in costs annually.

[0049] 4. Through the use of this auxiliary tooling, employees can use auxiliary hangers to install the crankshaft, which is conducive to ensuring the position of the corresponding mounting holes of the crankshaft. There is no need to worry about the tilt and bump problems at the crankshaft installation position, thus ensuring production efficiency and ensuring production quality.

[0050] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A portable tool for installing an engine crankshaft, characterized in that: It includes a fixing device, a movable slide rail, a balancer, a guide mechanism, a balancing cylinder, a rotating mechanism, an operating handle and a crankshaft hook, wherein the movable slide rail is horizontally arranged, and is installed on the fixing device, the upper end of the guide mechanism is slidably matched with the movable slide rail, the lower end of the guide mechanism is connected to the rotating mechanism, the balancer is installed on the guide mechanism, the balancer is connected to the rotating mechanism, the balancing cylinder is installed on the guide mechanism, the balancing cylinder is connected to the rotating mechanism, the rotating mechanism is connected to the crankshaft hook, and the operating handle is installed on the rotating mechanism.

2. The portable engine crankshaft installation tool according to claim 1, characterized in that: The fixing device includes at least four fixing brackets, and the movable slide rail includes a left transverse slide rail, a right transverse slide rail and a longitudinal slide rail. The upper ends of all the fixing brackets are connected to the workstation columns, the lower ends of at least two fixing brackets are connected to the left transverse slide rail, and the lower ends of at least two fixing brackets are connected to the right transverse slide rail. The left and right ends of the longitudinal slide rail are respectively slidably matched with the left transverse slide rail and the right transverse slide rail.

3. The portable engine crankshaft installation tool according to claim 2, characterized in that: The balancer comprises a hoist sling, the hoist sling is connected to the upper end of the guide mechanism through a hook, and a steel wire rope of the hoist sling is connected to the rotating mechanism.

4. The portable engine crankshaft installation tool according to claim 3, characterized in that: The guide mechanism comprises a guide mechanism mounting base plate and at least two guide rods, the upper ends of the guide rods are slidably matched with the longitudinal slide rails, the lower ends of the guide rods are mounted on the guide mechanism mounting base plate, and the telescopic rods of the guide rods are connected to the rotating mechanism.

5. The portable engine crankshaft installation tool according to claim 4, characterized in that: The rotating mechanism includes a rotating upper base plate, a rotating bearing and a rotating lower base plate. The rotating upper base plate is rotatably connected to the rotating lower base plate through the rotating bearing. The wire rope of the hoist is connected to the rotating upper base plate. The telescopic rod of the guide rod is connected to the rotating upper base plate. The operating handle is installed on the rotating lower base plate. The crankshaft hook is installed on the rotating lower base plate.

6. The portable engine crankshaft installation tool according to claim 5, characterized in that: The cylinder body of the balancing cylinder is mounted on the guide mechanism mounting base plate, and the piston rod of the balancing cylinder is connected to the rotating upper base plate.

7. The portable engine crankshaft installation tool according to claim 6, characterized in that: The operating handle is provided with a lifting switch, and the lifting switch is connected to the balancing cylinder through an air valve.

8. The portable engine crankshaft installation tool according to claim 1, characterized in that: A protective sleeve is installed on the outer surface of the crankshaft hook.

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